From 67770f4f7d7cc7a095569035b6c247c5c59370c8 Mon Sep 17 00:00:00 2001 From: ivmartel Date: Wed, 17 Jul 2024 13:32:24 +0200 Subject: [PATCH] Beta v0.34.0-beta.5 --- dist/dwv.d.ts | 35 +++++++++++++++++++---------------- dist/dwv.min.js | 2 +- dist/dwv.min.js.map | 2 +- package.json | 2 +- resources/api/dwv.api.md | 12 +++++++----- resources/doc/jsdoc.conf.json | 4 ++-- src/dicom/dicomParser.js | 2 +- 7 files changed, 32 insertions(+), 27 deletions(-) diff --git a/dist/dwv.d.ts b/dist/dwv.d.ts index 9335bcdffe..030ad9216f 100644 --- a/dist/dwv.d.ts +++ b/dist/dwv.d.ts @@ -109,6 +109,12 @@ export declare class Annotation { * @returns {object} The factory. */ getFactory(): object; + /** + * Get the string type of this annotation. + * + * @returns {string} The type. + */ + getType(): string; #private; } @@ -208,6 +214,14 @@ export declare class AnnotationGroup { * @returns {Annotation|undefined} The found annotation. */ find(id: string): Annotation | undefined; + /** + * Get the meta data. + * + * @returns {Object} The meta data. + */ + getMeta(): { + [x: string]: any; + }; /** * Check if this list contains a meta data value. * @@ -221,14 +235,14 @@ export declare class AnnotationGroup { * @param {string} key The meta data key. * @returns {object} The meta data value. */ - getMeta(key: string): object; + getMetaValue(key: string): object; /** * Set a meta data. * * @param {string} key The meta data key. * @param {object} value The value of the meta data. */ - setMeta(key: string, value: object): void; + setMetaValue(key: string, value: object): void; /** * Add an event listener to this class. * @@ -1737,8 +1751,9 @@ export declare class DrawShapeHandler { */ /** * @param {App} app The associated application. + * @param {Function} eventCallback Event callback. */ - constructor(app: App); + constructor(app: App, eventCallback: Function); /** * Set the draw editor shape. * @@ -1777,7 +1792,7 @@ export declare class DrawShapeHandler { * * @param {DrawLayer} drawLayer The origin draw layer. * @param {Konva.Group} shapeGroup The shape group to set on. - * @param {Annotation} annotation The associated annnotation. + * @param {Annotation} annotation The associated annotation. */ addShapeListeners(drawLayer: DrawLayer, shapeGroup: Konva.Group, annotation: Annotation): void; /** @@ -4764,18 +4779,6 @@ export declare class ViewController { * @returns {string} The unit. */ getPixelUnit(): string; - /** - * Get the image study instance UID. - * - * @returns {string} The UID. - */ - getStudyInstanceUID(): string; - /** - * Get the image series instance UID. - * - * @returns {string} The UID. - */ - getSeriesInstanceUID(): string; /** * Get some values from the associated image in a region. * diff --git a/dist/dwv.min.js b/dist/dwv.min.js index e62fe956b8..fb1583f135 100644 --- a/dist/dwv.min.js +++ b/dist/dwv.min.js @@ -1,2 +1,2 @@ -!function(e,t){"object"==typeof exports&&"object"==typeof 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ct(f,a,s,p,y);let v;const I=e["00080018"];void 0!==I&&(v=I.value[0]);let T=1;const L=e["00280002"];void 0!==L&&(T=L.value[0]);const P=a.getTotalSize()*T;if(P!==t.length){if(c.warn("Badly sized pixel buffer: "+t.length+" != "+P),!(P>8};r=t.value.map(e),o=n.value.map(e),a=i.value.map(e)}}else if(8===s.value[2]){c.info("Scaling 16bits color lut since the lut descriptor is 8.");let e=t.value.slice(0);r=Array.from(new Uint8Array(e.buffer)),e=n.value.slice(0),o=Array.from(new Uint8Array(e.buffer)),e=i.value.slice(0),a=Array.from(new Uint8Array(e.buffer))}D.palette={red:r,green:o,blue:a}}const z=e["00082144"];return void 0!==z&&(q.RecommendedDisplayFrameRate=parseInt(z.value[0],10)),w.setMeta(q),w}}class Lt{#O=!0;#x;constructor(e,t){void 0!==t&&(this.#O=t),this.#x=new DataView(e)}writeUint8(e,t){return this.#x.setUint8(e,t),e+Uint8Array.BYTES_PER_ELEMENT}writeInt8(e,t){return this.#x.setInt8(e,t),e+Int8Array.BYTES_PER_ELEMENT}writeUint16(e,t){return this.#x.setUint16(e,t,this.#O),e+Uint16Array.BYTES_PER_ELEMENT}writeInt16(e,t){return this.#x.setInt16(e,t,this.#O),e+Int16Array.BYTES_PER_ELEMENT}writeUint32(e,t){return this.#x.setUint32(e,t,this.#O),e+Uint32Array.BYTES_PER_ELEMENT}writeUint64(e,t){return this.#x.setBigUint64(e,t,this.#O),e+BigUint64Array.BYTES_PER_ELEMENT}writeInt32(e,t){return this.#x.setInt32(e,t,this.#O),e+Int32Array.BYTES_PER_ELEMENT}writeInt64(e,t){return this.#x.setBigInt64(e,t,this.#O),e+BigInt64Array.BYTES_PER_ELEMENT}writeFloat32(e,t){return this.#x.setFloat32(e,t,this.#O),e+Float32Array.BYTES_PER_ELEMENT}writeFloat64(e,t){return this.#x.setFloat64(e,t,this.#O),e+Float64Array.BYTES_PER_ELEMENT}writeHex(e,t){const n=parseInt(t,16);return this.#x.setUint16(e,n,this.#O),e+Uint16Array.BYTES_PER_ELEMENT}writeBinaryArray(e,t){if(t.length%8!=0)throw new Error("Cannot write boolean array as binary.");let n=null,i=null;for(let r=0,o=t.length;r1){let t="";for(let n=0;nme(e.tag)));void 0!==s&&void 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cn{dimIndex;imagePosPat;derivationImages;refSegmentNumber;imageOrientationPatient;spacing;constructor(e,t,n,i){this.dimIndex=e,this.imagePosPat=t,this.derivationImages=n,this.refSegmentNumber=i}}function un(e){const t=[];if(void 0!==e[nn]){const n=e[nn].value;for(let e=0;eO;return t&&(t=e>.001,t?(t=e>.01,t||c.warn("Using larger+ real world epsilon in SEG pos pat adding")):c.warn("Using larger real world epsilon in SEG pos pat adding")),t},F=[];F.push(C[0]);let q=0;for(let e=1;eo)throw new Error("Test distance is increasing when adding intermediate pos pats");F.push(C[e])}const U=F.length,M=new ct(A[0],i,h,L),Q=["0"];for(let e=1;e=0;--i){const a=Number.parseInt(o[i],10);g.push(h[r][a]);const s=e.getGeometry().getOrigins()[a],l=[s.getX(),s.getY(),s.getZ()],c={dimIndex:[t,o.length-i],imagePosPat:l,refSegmentNumber:t};if(void 0!==n){const e=n.getGeometry().worldToIndex(new q([s.getX(),s.getY(),s.getZ()]));c.derivationImages=[{sourceImages:[{referencedSOPInstanceUID:n.getImageUid(e),referencedSOPClassUID:n.getMeta().SOPClassUID}]}],m.push({ReferencedSOPInstanceUID:n.getImageUid(e),ReferencedSOPClassUID:n.getMeta().SOPClassUID})}S.push(c)}}r.NumberOfFrames=g.length.toString();const p=[];for(const e of S)p.push(dn(e));if(r.PerFrameFunctionalGroupsSequence={value:p},void 0!==n){const e=[];e.push({ReferencedInstanceSequence:{value:m},SeriesInstanceUID:n.getMeta().SeriesInstanceUID}),r.ReferencedSeriesSequence={value:e}}void 0!==i&&function(e,t){const n=Object.keys(t);for(const i of n)void 0!==e[i]&&c.trace("Overwritting tag: "+i),e[i]=t[i]}(r,i);const f=Vt(r),D=a.getDimSize(2),y=g.length*D/8,C=new ve("OB");return C.tag=new de("7FE0","0010"),C.vl=y,C.value=g,f["7FE00010"]=C,f}}function Dn(e){return(new Tt).create(e,e["7FE00010"].value[0],1)}function yn(e){return(new fn).create(e,e["7FE00010"].value[0])}class Cn{#me;#w;#pe;#t=new et(1,0);#fe=null;#De=!0;#ye=!0;#Ce="MONOCHROME2";#ve=0;#Ie;#Te={};#Le=null;#Pe=null;#we=null;#Oe=new Ze;constructor(e,t,n){this.#me=e,this.#w=t,this.#pe=n,this.#Ie=this.#w.length/this.#me.getSize().getTotalSize()}getImageUid(e){let t=this.#pe[0];return 1!==this.#pe.length&&void 0!==e&&(t=this.#pe[this.getSecondaryOffset(e)]),t}getOriginForImageUid(e){let t;const n=this.#pe.indexOf(e);return-1!==n&&(t=this.getGeometry().getOrigins()[n]),t}containsImageUids(e){return function(e,t){if(null===e||null===t||void 0===e||void 0===t)return!1;if(0===e.length||0===t.length||t.length>e.length)return!1;for(const n of t)if(!e.includes(n))return!1;return!0}(this.#pe,e)}getGeometry(){return this.#me}getBuffer(){return this.#w}canQuantify(){return 1===this.getNumberOfComponents()}canWindowLevel(){return this.isMonochrome()}isMonochrome(){return null!==this.getPhotometricInterpretation().match(/MONOCHROME/)}canScroll(e){const t=this.getGeometry().getSize();let n=1;return void 0!==this.#Te.numberOfFiles&&(n=this.#Te.numberOfFiles),t.canScroll(e)||1!==n}#Ae(){return this.#me.getSize().getTotalSize(2)}getSecondaryOffset(e){return this.#me.getSize().indexToOffset(e,2)}getRescaleSlopeAndIntercept(e){let t=this.#t;if(!this.isConstantRSI()){if(void 0===e)throw new Error("Cannot get non constant RSI with empty slice index.");const n=this.getSecondaryOffset(e);void 0!==this.#fe[n]?t=this.#fe[n]:c.warn("undefined non constant rsi at "+n)}return t}#be(e){return this.#fe[e]}setRescaleSlopeAndIntercept(e,t){if(this.#De=this.#De&&e.isID(),this.#ye){if(!this.#t.equals(e))if(void 0===t)this.#t=e;else{this.#ye=!1,this.#fe=[];for(let e=0,t=this.#Ae();e=this.#Te.numberOfFiles?c.warn("Ignoring frame at index "+t+" (size: "+this.#Te.numberOfFiles+")"):(this.#w.set(e,i*t),this.appendFrame(t,new E(0,0,0)))}appendFrame(e,t){this.#me.appendFrame(t,e),this.#Re({type:"appendframe"})}getDataRange(){return this.#Le||(this.#Le=this.calculateDataRange()),this.#Le}getRescaledDataRange(){return this.#Pe||(this.#Pe=this.calculateRescaledDataRange()),this.#Pe}getHistogram(){if(!this.#we){const e=this.calculateHistogram();this.#Le=e.dataRange,this.#Pe=e.rescaledDataRange,this.#we=e.histogram}return this.#we}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};setAtOffsets(e,t){let n,i;if("number"==typeof t){if(1!==this.#Ie)throw new Error("Number of components is not 1 for setting single value.");n=[t]}else if(void 0!==t.r&&void 0!==t.g&&void 0!==t.b){if(3!==this.#Ie)throw new Error("Number of components is not 3 for setting RGB value.");n=[t.r,t.g,t.b]}for(let t=0,r=e.length;t=3&&(r=i.getDimSize(3));for(let i=0;it&&(t=n),nn?t:n}}{let e=this.getRescaledValueAtOffset(0),t=e,n=0;const i=this.getGeometry().getSize();let r=i.getTotalSize();3===i.length()&&(r=i.getDimSize(3));for(let i=0;it&&(t=n),ni&&(i=r),ra&&(a=s),s{const e=this.getCurrentIndex();if(3===e.length()){const t=e.getValues();t.push(0),this.setCurrentIndex(new s(t))}}))}getImage(){return this.#Fe}setImage(e){this.#Fe=e}getOrientation(){return this.#_}setOrientation(e){this.#_=e}init(){this.setInitialIndex()}setInitialIndex(){const e=this.#Fe.getGeometry().getSize(),t=new Array(e.length());t.fill(0),t[0]=Math.floor(e.get(0)/2),t[1]=Math.floor(e.get(1)/2),t[2]=Math.floor(e.get(2)/2),this.setCurrentIndex(new s(t),!0)}getPlaybackMilliseconds(e){return e||(e=10),Math.round(1e3/e)}#Ne=function(e,t){return 255};getAlphaFunction(){return this.#Ne}setAlphaFunction(e){this.#Ne=e,this.#Re({type:"alphafuncchange"})}#Be(){if(this.#Ue&&void 0!==this.#qe[this.#Ue]&&void 0!==this.#qe[this.#Ue].perslice&&!0===this.#qe[this.#Ue].perslice){this.getCurrentIndex()||this.setInitialIndex();const e=this.getCurrentIndex(),t=this.#Fe.getSecondaryOffset(e),n=this.#qe[this.#Ue].wl[t];this.setWindowLevel(n,this.#Ue,!0)}if(void 0===this.#Me&&this.setWindowLevelPresetById(0,!0),void 0===this.#ye||this.#Fe.isConstantRSI()!==this.#ye){let e,t;this.#ye=this.#Fe.isConstantRSI(),this.#ye?(e=this.#Fe.getRescaleSlopeAndIntercept(),t=!0):(e=new et(1,0),t=!1);const n=new l(e,this.#Fe.getMeta().BitsStored);this.#Ee=new S(n,this.#Fe.getMeta().IsSigned,t)}const e=this.#Ee.getVoiLut();let t;if(void 0!==e&&(t=e.getWindowLevel()),void 0===e||!this.#Me.equals(t)){const e=new h(this.#Me);this.#Ee.setVoiLut(e)}return this.#Ee}getWindowPresets(){return this.#qe}getWindowPresetsNames(){return Object.keys(this.#qe)}setWindowPresets(e){this.#qe=e}addWindowPresets(e){const t=Object.keys(e);let n=null;for(let i=0;i{this.#Oe.fireEvent(e)};getWindowLevelMinMax(){const e=this.getImage().getRescaledDataRange(),t=e.min;let n=e.max-t;return n<1&&(c.warn("Zero or negative window width, defaulting to one."),n=1),new u(t+n/2,n)}setWindowLevelMinMax(){const e=this.getWindowLevelMinMax();this.setWindowLevel(e,"minmax")}generateImageData(e,t){void 0===t&&(this.getCurrentIndex()||this.setInitialIndex(),t=this.getCurrentIndex());const n=this.getImage(),i=!n.isConstantRSI(),r=Je(n,t,i,this.getOrientation()),o=n.getPhotometricInterpretation();switch(o){case"MONOCHROME1":case"MONOCHROME2":!function(e,t,n,i,r){let o=0,a=0,s=t.next();for(;!s.done;)a=i.getValue(s.value),e.data[o]=r.red[a],e.data[o+1]=r.green[a],e.data[o+2]=r.blue[a],e.data[o+3]=n(s.value,s.index),o+=4,s=t.next()}(e,r,this.getAlphaFunction(),this.#Be(),this.#Ge());break;case"PALETTE COLOR":!function(e,t,n,i,r){const o=function(e){return e>>8};r&&c.info("Scaling 16bits data to 8bits.");let a=0,s=0,l=t.next();for(;!l.done;)s=l.value,r?(e.data[a]=o(i.red[s]),e.data[a+1]=o(i.green[s]),e.data[a+2]=o(i.blue[s])):(e.data[a]=i.red[s],e.data[a+1]=i.green[s],e.data[a+2]=i.blue[s]),e.data[a+3]=n(s,l.index),a+=4,l=t.next()}(e,r,this.getAlphaFunction(),this.#Ge(),16===n.getMeta().BitsStored);break;case"RGB":!function(e,t,n){let i=0,r=t.next();for(;!r.done;)e.data[i]=r.value[0],e.data[i+1]=r.value[1],e.data[i+2]=r.value[2],e.data[i+3]=n(r.value,r.index),i+=4,r=t.next()}(e,r,this.getAlphaFunction());break;case"YBR_FULL":!function(e,t,n){let i=0,r=null,o=t.next();for(;!o.done;)a=o.value[0],s=o.value[1],r={r:a+1.402*((l=o.value[2])-128),g:a-.34414*(s-128)-.71414*(l-128),b:a+1.772*(s-128)},e.data[i]=r.r,e.data[i+1]=r.g,e.data[i+2]=r.b,e.data[i+3]=n(o.value,o.index),i+=4,o=t.next();var a,s,l}(e,r,this.getAlphaFunction());break;default:throw new Error("Unsupported photometric interpretation: "+o)}}getScrollIndex(){let e=null;const t=this.getOrientation();return e=void 0!==t?t.getThirdColMajorDirection():2,e}}class Pn{#Y;#ke;#He;#ze;constructor(e,t,n){this.#Y=e,this.#ke=t,this.#He=n,this.#ze=function(e,t){let n=e.asOneAndZeros().multiply(t);return e.asOneAndZeros().getAbs().equals(Le().getAbs())&&(n=n.getAbs()),n}(t,n)}getOffset3DFromPlaneOffset(e){const t=new w(e.x,e.y,0),n=this.getTargetDeOrientedVector3D(t);return new w(n.getX()*this.#Y.get(0),n.getY()*this.#Y.get(1),n.getZ()*this.#Y.get(2))}getPlaneOffsetFromOffset3D(e){const t=new w(e.x/this.#Y.get(0),e.y/this.#Y.get(1),e.z/this.#Y.get(2)),n=this.getTargetOrientedVector3D(t);return{x:n.getX(),y:n.getY()}}getTargetOrientedVector3D(e){let t=e;return void 0!==this.#ze&&(t=this.#ze.getInverse().multiplyVector3D(e)),t}getTargetDeOrientedVector3D(e){let t=e;return void 0!==this.#ze&&(t=this.#ze.multiplyVector3D(e)),t}getTargetDeOrientedPoint3D(e){let t=e;return void 0!==this.#ze&&(t=this.#ze.multiplyPoint3D(e)),t}getImageOrientedVector3D(e){let t=e;if(void 0!==this.#He){const n=dt([e.getX(),e.getY(),e.getZ()],this.#He);t=new w(n[0],n[1],n[2])}return t}getImageOrientedPoint3D(e){let t=e;if(void 0!==this.#He){const n=dt([e.getX(),e.getY(),e.getZ()],this.#He);t=new E(n[0],n[1],n[2])}return t}getImageDeOrientedVector3D(e){let t=e;if(void 0!==this.#He){const n=ut([e.getX(),e.getY(),e.getZ()],this.#He);t=new w(n[0],n[1],n[2])}return t}getImageDeOrientedPoint3D(e){let t=e;if(void 0!==this.#He){const n=ut([e.getX(),e.getY(),e.getZ()],this.#He);t=new E(n[0],n[1],n[2])}return t}getTargetOrientedPositiveXYZ(e){const t=ut([e.x,e.y,e.z],this.#ze);return{x:t[0],y:t[1],z:t[2]}}getScrollIndex(){let e=null;return e=void 0!==this.#He?this.#He.getThirdColMajorDirection():2,e}getNativeScrollIndex(){let e=null;return e=void 0!==this.#ke?this.#ke.getThirdColMajorDirection():2,e}}class wn{#x;#We;#Xe;#Ye=!1;constructor(e){if(void 0===e.getImage())throw new Error("View does not have an image, cannot setup controller");this.#x=e,this.#We=new Pn(e.getImage().getGeometry().getRealSpacing(),e.getImage().getGeometry().getOrientation(),e.getOrientation()),"SEG"===e.getImage().getMeta().Modality&&(this.#Ye=!0)}getPlaneHelper(){return this.#We}isMask(){return this.#Ye}initialise(){this.setWindowLevelPresetById(0),this.setCurrentPosition(this.getPositionFromPlanePoint(new F(0,0)))}getModality(){return this.#x.getImage().getMeta().Modality}getWindowLevelPresetsNames(){return this.#x.getWindowPresetsNames()}addWindowLevelPresets(e){return this.#x.addWindowPresets(e)}setWindowLevelPreset(e){this.#x.setWindowLevelPreset(e)}setWindowLevelPresetById(e){this.#x.setWindowLevelPresetById(e)}isPlaying(){return void 0!==this.#Xe}getCurrentPosition(){return this.#x.getCurrentPosition()}getCurrentIndex(){return this.#x.getCurrentIndex()}getCurrentImageUid(){return this.#x.getCurrentImageUid()}getOriginIndexForImageUid(e){return this.#x.getOriginIndexForImageUid(e)}getCurrentOrientedIndex(){let e=this.#x.getCurrentIndex();if(void 0!==this.#x.getOrientation()){const t=this.#We.getImageDeOrientedVector3D(new w(e.get(0),e.get(1),e.get(2)));e=new s([t.getX(),t.getY(),t.getZ()])}return e}getScrollIndex(){return this.#x.getScrollIndex()}getCurrentScrollIndexValue(){return this.#x.getCurrentIndex().get(this.#x.getScrollIndex())}getOrigin(e){return this.#x.getOrigin(e)}getCurrentScrollPosition(){const e=this.#x.getScrollIndex();return this.#x.getCurrentPosition().get(e)}generateImageData(e,t){this.#x.generateImageData(e,t)}setImage(e){this.#x.setImage(e)}get2DSpacing(){return this.#x.getImage().getGeometry().getSpacing(this.#x.getOrientation()).get2D()}getRescaledImageValue(e){const t=this.#x.getImage();if(!t.canQuantify())return;const n=t.getGeometry(),i=n.worldToIndex(e);let r;return n.isIndexInBounds(i)&&(r=t.getRescaledValueAtIndex(i)),r}getPixelUnit(){return this.#x.getImage().getMeta().pixelUnit}getStudyInstanceUID(){return this.#x.getImage().getMeta().StudyInstanceUID}getSeriesInstanceUID(){return this.#x.getImage().getMeta().SeriesInstanceUID}#je(e,t,n,i){const r=Ke(Je(e,t,n,i)),o=e.getGeometry().getSize(i).getValues();o[2]=1;const a=new tt(o),s=e.getGeometry().getSpacing(i).getValues();s[2]=1;const l=new lt(s),c=new E(0,0,0),u=new ct(c,a,l);return new Cn(u,r)}getImageRegionValues(e,t){let n=this.#x.getImage();const i=this.#x.getOrientation();let r=this.getCurrentIndex(),o=!0;R(i)||(n=this.#je(n,r,o,i),r=new s([0,0,0]),o=!1);const a=function(e,t,n,i,r){if(1!==e.getNumberOfComponents())throw new Error("Unsupported number of components for region iterator: "+e.getNumberOfComponents());void 0===n&&(n=!1);let o=null;o=n?function(t){return e.getRescaledValueAtOffset(t)}:function(t){return e.getValueAtOffset(t)};const a=e.getGeometry().getSize();void 0===i&&(i=new F(0,0)),void 0===r&&(r=new F(a.get(0)-1,a.get(1)));const s=a.indexToOffset(t.getWithNew2D(i.getX(),i.getY())),l=a.indexToOffset(t.getWithNew2D(r.getX(),r.getY()-1)),c=Math.max(1,r.getX()-i.getX());return function(e,t,n,i,r,o){let a=t,s=0;return{next:function(){if(a{let e=!1;if(e=i?this.incrementScrollIndex():this.incrementIndex(3),!e){const e=this.getCurrentIndex().getValues(),t=this.#x.getOrientation();i?e[t.getThirdColMajorDirection()]=0:e[3]=0;const n=new s(e),r=this.#x.getImage().getGeometry();this.setCurrentPosition(r.indexToWorld(n))}}),n)}else this.stop()}stop(){void 0!==this.#Xe&&(clearInterval(this.#Xe),this.#Xe=void 0)}getWindowLevel(){return this.#x.getWindowLevel()}getCurrentWindowPresetName(){return this.#x.getCurrentWindowPresetName()}setWindowLevel(e){this.#x.setWindowLevel(e)}getColourMap(){return this.#x.getColourMap()}setColourMap(e){this.#x.setColourMap(e)}setViewAlphaFunction(e){this.#x.setAlphaFunction(e)}bindImageAndLayer(e){const t=this.#x.getImage();t.addEventListener("imagecontentchange",e.onimagecontentchange),t.addEventListener("imagegeometrychange",e.onimagegeometrychange)}unbindImageAndLayer(e){const t=this.#x.getImage();t.removeEventListener("imagecontentchange",e.onimagecontentchange),t.removeEventListener("imagegeometrychange",e.onimagegeometrychange)}}const On={t(e){const t=e.split(".");if(2!==t.length)throw new Error("Unexpected translation key length.");if("unit"!==t[0])throw new Error("Unexpected translation key prefix.");return{mm:"mm",cm2:"cm²",degree:"°"}[t[1]]}};class An{#$e;#et;constructor(e,t){this.#$e=e,this.#et=t}getCenter(){return this.#$e}getRadius(){return this.#et}equals(e){return null!==e&&this.getCenter().equals(e.getCenter())&&this.getRadius()===e.getRadius()}getSurface(){return Math.PI*this.getRadius()*this.getRadius()}getWorldSurface(e){return function(e,t,n){let i=null;return null!==t&&null!==n&&(i=e*t*n),i}(this.getSurface(),e.x,e.y)}getRound(){const e=this.getCenter().getX(),t=this.getCenter().getY(),n=this.getRadius(),i=Math.pow(n,2),r=t+n,o=[];for(let a=t-n;an.getX()&&(e.x(n.getX()),i=!0),e.y()n.getY()&&(e.y(n.getY()),i=!0),i}class Nn{getGroupName(){return"circle-group"}getNPoints(){return 2}getTimeout(){return 0}isFactoryGroup(e){return this.getGroupName()===e.name()}#dt(e){const t=Math.abs(e[0].getX()-e[1].getX()),n=Math.abs(e[0].getY()-e[1].getY()),i=Math.round(Math.sqrt(t*t+n*n));return new An(e[0],i)}setAnnotationMathShape(e,t){e.mathShape=this.#dt(t),e.setTextExpr(this.#ht()),e.updateQuantification()}updateAnnotationOnTranslation(e,t){const n=e.mathShape,i=n.getCenter(),r=new F(i.getX()+t.x,i.getY()+t.y);e.mathShape=new An(r,n.getRadius());const o=e.labelPosition;if(void 0!==o){const n=new F(o.getX()+t.x,o.getY()+t.y);e.labelPosition=n}e.updateQuantification()}updateAnnotationOnAnchorMove(e,t){const n=e.mathShape,i=new F(n.getCenter().getX(),n.getCenter().getY()),r=new F(t.x(),t.y()),o=i.getDistance(r);e.mathShape=new An(i,o),e.updateQuantification()}#ht(){return bn.labelText.circle}#St(e,t){const n=e.mathShape;return new(Fn().Circle)({x:n.getCenter().getX(),y:n.getCenter().getY(),radius:n.getRadius(),stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape"})}#gt(e){const t=e.mathShape,n=t.getCenter(),i=t.getRadius();return new F(n.getX()-i,n.getY()+i)}#mt(e){let t=e.labelPosition;return void 0===t&&(t=this.#gt(e)),t}#pt(e,t){const n=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"}),i=e.getText();n.setText(i);const r=this.#mt(e),o=new(Fn().Label)({x:r.getX(),y:r.getY(),scale:t.applyZoomScale(1),visible:0!==i.length,name:"label"});return o.add(n),o.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()})),o}createShapeGroup(e,t){const n=new(Fn().Group);return n.name(this.getGroupName()),n.visible(!0),n.id(e.id),n.add(this.#St(e,t)),n.add(this.#pt(e,t)),n}getAnchors(e,t){const n=e.x(),i=e.y(),r=e.radius(),o=[];return o.push(Qn(n-r,i,"left",t)),o.push(Qn(n+r,i,"right",t)),o.push(Qn(n,i+r,"bottom",t)),o.push(Qn(n,i-r,"top",t)),o}constrainAnchorMove(e){const t=e.getParent();if(!(t instanceof Fn().Group))return;const n=t.getChildren((function(e){return"left"===e.id()}))[0],i=t.getChildren((function(e){return"right"===e.id()}))[0],r=t.getChildren((function(e){return"bottom"===e.id()}))[0],o=t.getChildren((function(e){return"top"===e.id()}))[0];switch(e.id()){case"left":n.y(i.y());break;case"right":i.y(n.y());break;case"bottom":r.x(o.x());break;case"top":o.x(r.x());break;default:c.error("Unhandled anchor id: "+e.id())}}updateShapeGroupOnAnchorMove(e,t,n){const i=t.getParent();i instanceof Fn().Group&&(this.#ft(e,t,n),this.updateLabelContent(e,i,n),this.updateLabelPosition(e,i,n))}#ft(e,t,n){const i=e.mathShape,r=i.getCenter(),o=i.getRadius(),a=t.getParent();if(!(a instanceof Fn().Group))return;const s=a.getChildren((function(e){return"shape"===e.name()}))[0];if(!(s instanceof Fn().Circle))return;s.radius(o);const l=a.getChildren((function(e){return"left"===e.id()}))[0],u=a.getChildren((function(e){return"right"===e.id()}))[0],d=a.getChildren((function(e){return"bottom"===e.id()}))[0],h=a.getChildren((function(e){return"top"===e.id()}))[0],S=u.x()t.id===e.id));-1!==t?(this.#vt[t]=e,this.#Re({type:"updateannotation",data:e})):console.log("Cannot find annotation to update")}remove(e){const t=this.#vt.findIndex((t=>t.id===e));if(-1!==t){const e=this.#vt.splice(t,1)[0];this.#Re({type:"removeannotation",data:e})}else console.log("Cannot find annotation to remove")}setViewController(e){for(const t of this.#vt)t.setViewController(e),t.updateQuantification()}find(e){return this.#vt.find((t=>t.id===e))}hasMeta(e){return void 0!==this.#Te[e]}getMeta(e){return this.#Te[e]}setMeta(e,t){this.#Te[e]=t}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}}const kn=["mousedown","mousemove","mouseup","mouseout","wheel","dblclick","touchstart","touchmove","touchend"],Hn={openRoiDialog(e,t){const n=prompt("Label",e.textExpr);null!==n&&(e.textExpr=n,t(e))}};function zn(e){let t=0,n=0;if(0!==e.length&&void 0!==e[0].target){let i=e[0].target.offsetParent;for(;i;)isNaN(i.offsetLeft)||(t+=i.offsetLeft),isNaN(i.offsetTop)||(n+=i.offsetTop),i=i.offsetParent}else c.debug("No touch target offset parent.");const i=[];for(let r=0;r{this.#Bt===e.dataid&&(this.#Ct.setImage(e.value[0]),this.#jt(this.#Ct.getImageSize().get2D()),this.#Nt=!0)};bindImage(){this.#Ct&&this.#Ct.bindImageAndLayer(this)}unbindImage(){this.#Ct&&this.#Ct.unbindImageAndLayer(this)}onimagecontentchange=e=>{this.#Bt===e.dataid&&(this.#wt=this.#Ct.isPositionInBounds(),this.#Nt=!0,this.draw())};onimagegeometrychange=e=>{if(this.#Bt===e.dataid){const e=this.#Ct.getImageSize().get2D();if(this.#At.x!==e.x||this.#At.y!==e.y){if(void 0!==this.#kt&&void 0!==this.#Ht){const e=this.#Ct.getOrigin(),t=this.#Ht.minus(e),n=this.#Ct.getOrigin(this.#Ct.getCurrentPosition()),i=this.#kt.minus(n);this.setBaseOffset(t,i)}this.#jt(e),this.#Nt=!0,this.draw()}}};getId(){return this.#It.id}removeFromDOM(){this.#It.remove()}getBaseSize(){return this.#At}getImageWorldSize(){return this.#Ct.getImageWorldSize()}getOpacity(){return this.#xt}setOpacity(e){if(e===this.#xt)return;this.#xt=Math.min(Math.max(e,0),1);const t={type:"opacitychange",value:[this.#xt]};this.#Re(t)}addFlipOffsetX(){this.#Vt.x+=this.#Tt.width/this.#Rt.x,this.#qt.x+=this.#Vt.x}addFlipOffsetY(){this.#Vt.y+=this.#Tt.height/this.#Rt.y,this.#qt.y+=this.#Vt.y}flipScaleX(){this.#Et.x*=-1}flipScaleY(){this.#Et.y*=-1}flipScaleZ(){this.#Et.z*=-1}setScale(e,t){const n=this.#Ct.getPlaneHelper(),i=n.getTargetOrientedPositiveXYZ({x:e.x*this.#Et.x,y:e.y*this.#Et.y,z:e.z*this.#Et.z}),r={x:this.#Ft.x*i.x,y:this.#Ft.y*i.y};if(1===Math.abs(e.x)&&1===Math.abs(e.y)&&1===Math.abs(e.z)){const e={x:this.#qt.x-this.#Qt.x,y:this.#qt.y-this.#Qt.y};this.#Qt={x:0,y:0},this.#qt=e}else if(void 0!==t){let e=n.getPlaneOffsetFromOffset3D({x:t.getX(),y:t.getY(),z:t.getZ()});e={x:e.x+this.#Ut.x,y:e.y+this.#Ut.y};const i=si(this.#qt,this.#Rt,r,e),o={x:this.#Qt.x+i.x-this.#qt.x,y:this.#Qt.y+i.y-this.#qt.y};this.#Qt=o,this.#qt=i}this.#Rt=r}initScale(e,t){const n=this.#Ct.getPlaneHelper().getTargetOrientedPositiveXYZ({x:e.x*this.#Et.x,y:e.y*this.#Et.y,z:e.z*this.#Et.z}),i={x:this.#Ft.x*n.x,y:this.#Ft.y*n.y};this.#Rt=i,this.#Qt={x:t.x/this.#Ft.x,y:t.y/this.#Ft.y},this.#qt={x:this.#qt.x+this.#Qt.x,y:this.#qt.y+this.#Qt.y}}setBaseOffset(e,t,n,i){const r=this.#Ct.getPlaneHelper(),o=r.getNativeScrollIndex(),a=r.getPlaneOffsetFromOffset3D({x:0===o?e.getX():t.getX(),y:1===o?e.getY():t.getY(),z:2===o?e.getZ():t.getZ()}),s=this.#Ut.x!==a.x||this.#Ut.y!==a.y;return void 0!==n&&void 0!==i&&(this.#kt=n,this.#Ht=i),s&&(this.#qt={x:this.#qt.x-this.#Ut.x+a.x,y:this.#qt.y-this.#Ut.y+a.y},this.#Ut=a),s}setOffset(e){const t=this.#Ct.getPlaneHelper().getPlaneOffsetFromOffset3D(e);this.#qt={x:t.x+this.#Mt.x+this.#Ut.x+this.#Qt.x+this.#Vt.x,y:t.y+this.#Mt.y+this.#Ut.y+this.#Qt.y+this.#Vt.y}}displayToPlaneIndex(e){const t=this.displayToPlanePos(e);return new s([Math.floor(t.getX()),Math.floor(t.getY())])}displayToPlaneScale(e){return new F(e.getX()/this.#Rt.x,e.getY()/this.#Rt.y)}displayToPlanePos(e){const t=this.displayToPlaneScale(e);return new F(t.getX()+this.#qt.x,t.getY()+this.#qt.y)}planePosToDisplay(e){let t=(e.getX()-this.#qt.x+this.#Ut.x)*this.#Rt.x,n=(e.getY()-this.#qt.y+this.#Ut.y)*this.#Rt.y;return(t<0||t>=this.#Tt.width)&&(t=void 0),(n<0||n>=this.#Tt.height)&&(n=void 0),new F(t,n)}displayToMainPlanePos(e){const t=this.displayToPlanePos(e);return new F(t.getX()-this.#Ut.x,t.getY()-this.#Ut.y)}display(e){this.#It.style.display=e?"":"none"}isVisible(){return""===this.#It.style.display}draw(){if(!this.#wt)return;let e={type:"renderstart",layerid:this.getId(),dataid:this.getDataId()};this.#Re(e),this.#Nt&&this.#Zt(),this.#Pt.globalAlpha=this.#xt,this.clear(),this.#Pt.setTransform(this.#Rt.x,0,0,this.#Rt.y,-1*this.#qt.x*this.#Rt.x,-1*this.#qt.y*this.#Rt.y),this.#Pt.imageSmoothingEnabled=this.#Gt,this.#Pt.drawImage(this.#Lt,0,0),e={type:"renderend",layerid:this.getId(),dataid:this.getDataId()},this.#Re(e)}initialise(e,t,n){this.#bt=t,this.#xt=Math.min(Math.max(n,0),1),this.#Tt=document.createElement("canvas"),this.#It.appendChild(this.#Tt),this.#Tt.getContext?(this.#Pt=this.#Tt.getContext("2d"),this.#Pt?(this.#Lt=document.createElement("canvas"),this.#jt(e),this.#Nt=!0):alert("Error: failed to get the 2D context.")):alert("Error: no canvas.getContext method.")}#jt(e){if(!Yn(e.x,e.y))throw new Error("Cannot create canvas with size "+e.x+", "+e.y);this.#At=e,this.#Lt.width=this.#At.x,this.#Lt.height=this.#At.y,this.#Pt.clearRect(0,0,this.#At.x,this.#At.y),this.#Ot=this.#Pt.createImageData(this.#At.x,this.#At.y)}fitToContainer(e,t,n){let i=!1;if(this.#Tt.width!==e.x||this.#Tt.height!==e.y){if(!Yn(e.x,e.y))throw new Error("Cannot resize canvas "+e.x+", "+e.y);this.#Tt.width=e.x,this.#Tt.height=e.y,i=!0}const r={x:t*this.#bt.x,y:t*this.#bt.y},o={x:this.#Rt.x*r.x/this.#Ft.x,y:this.#Rt.y*r.y/this.#Ft.y};this.#Rt.x===o.x&&this.#Rt.y===o.y||(this.#Ft=r,this.#Rt=o,i=!0);const a={x:n.x/r.x,y:n.y/r.y},s={x:e.x/r.x,y:e.y/r.y},l={x:0!==this.#Vt.x?s.x:0,y:0!==this.#Vt.y?s.y:0};this.#Mt.x===a.x&&this.#Mt.y===a.y&&this.#Vt.x===l.x&&this.#Vt.y===l.y||(this.#qt={x:this.#qt.x+a.x-this.#Mt.x+l.x-this.#Vt.x,y:this.#qt.y+a.y-this.#Mt.y+l.y-this.#Vt.y},this.#Vt=l,this.#Mt=a,i=!0),i&&this.draw()}bindInteraction(){this.#It.style.pointerEvents="auto";const e=kn;for(let t=0;t{e.srclayerid=this.getId(),e.dataid=this.#Bt,this.#Oe.fireEvent(e)};#Zt(){this.#Ct.generateImageData(this.#Ot),this.#Lt.getContext("2d").putImageData(this.#Ot,0,0),this.#Nt=!1}#zt=e=>{void 0!==e.skipGenerate&&!0===e.skipGenerate||(this.#Nt=!0,this.draw())};#Wt=e=>{void 0!==e.skipGenerate&&!0===e.skipGenerate||(this.#Nt=!0,this.draw())};#Xt=e=>{if(void 0===e.skipGenerate||!0!==e.skipGenerate){let t=!0;if(void 0!==e.valid&&(t=e.valid),t){const t=[0,1,2],n=t.indexOf(this.#Ct.getScrollIndex());t.splice(n,1),0===e.diffDims.filter((function(e){return-1===t.indexOf(e)})).length&&this.#wt||(this.#wt=!0,this.#Nt=!0,this.draw())}else this.#wt&&(this.#wt=!1,this.clear())}};#Yt=e=>{void 0!==e.skipGenerate&&!0===e.skipGenerate||(this.#Nt=!0,this.draw())};setCurrentPosition(e,t){return this.#Ct.setCurrentPosition(e)}clear(){this.#Pt.save(),this.#Pt.setTransform(1,0,0,1,0,0),this.#Pt.clearRect(0,0,this.#Tt.width,this.#Tt.height),this.#Pt.restore()}}class Zn{#_t;#Kt;constructor(e,t){this.#_t=e,this.#Kt=t}getName(){return"AddAnnotation-"+this.#_t.id}execute(){this.#Kt.addAnnotation(this.#_t)}undo(){this.#Kt.removeAnnotation(this.#_t.id)}}class _n{#_t;#Kt;constructor(e,t){this.#_t=e,this.#Kt=t}getName(){return"RemoveAnnotation-"+this.#_t.id}execute(){this.#Kt.removeAnnotation(this.#_t.id)}undo(){this.#Kt.addAnnotation(this.#_t)}}class Kn{#_t;#Kt;#Jt;#$t;constructor(e,t,n,i){this.#_t=e,this.#Kt=i,this.#Jt=t,this.#$t=n}getName(){return"UpdateAnnotation-"+this.#_t.id}execute(){for(const e in this.#$t)this.#_t[e]=this.#$t[e];this.#Kt.updateAnnotation(this.#_t)}undo(){for(const e in this.#Jt)this.#_t[e]=this.#Jt[e];this.#Kt.updateAnnotation(this.#_t)}}class Jn{#T;#en;#tn;#nn;#in;constructor(e,t,n,i){this.#T=e,this.#en=t,this.#tn=n,this.#nn=void 0!==i&&i,this.#in=e.getParent()}getName(){return"Draw-"+this.#en}execute(){this.#in.add(this.#T),this.#tn.getKonvaLayer().draw(),this.#nn||this.onExecute({type:"drawcreate",id:this.#T.id(),srclayerid:this.#tn.getId(),dataid:this.#tn.getDataId()})}undo(){this.#T.remove(),this.#tn.getKonvaLayer().draw(),this.onUndo({type:"drawdelete",id:this.#T.id(),srclayerid:this.#tn.getId(),dataid:this.#tn.getDataId()})}onExecute(e){}onUndo(e){}}class $n{#rn;getAnnotation(e){return this.#rn.find(e)}getAnnotationGroup(){return this.#rn}addAnnotation(e){this.#rn.add(e)}updateAnnotation(e){this.#rn.update(e)}removeAnnotation(e){this.#rn.remove(e)}removeAnnotationWithCommand(e,t){const n=this.getAnnotation(e),i=new _n(n,this);t(i),i.execute()}removeAllAnnotationsWithCommand(e){for(const t of this.#rn.getList())this.removeAnnotationWithCommand(t.id,e)}constructor(e){this.#rn=void 0!==e?e:new Gn}hasAnnotationMeta(e){return this.#rn.hasMeta(e)}setAnnotationMeta(e,t){this.#rn.setMeta(e,t)}getDrawStoreDetails(){}}class ei{#on;constructor(e){this.#on=e}#an=null;#sn=null;#ln;#_t;#cn=!1;setShape(e,t,n){if(this.#sn=e,this.#ln=t,this.#_t=n,this.#sn){if(this.#un(),this.#an=n.getFactory(),null===this.#an)throw new Error("Could not find a factory to update shape.");this.#dn()}}getShape(){return this.#sn}getAnnotation(){return this.#_t}isActive(){return this.#cn}enable(){this.#cn=!0,this.#sn&&(this.#hn(!0),this.#sn.getLayer()&&this.#sn.getLayer().draw())}disable(){this.#cn=!1,this.#sn&&(this.#hn(!1),this.#sn.getLayer()&&this.#sn.getLayer().draw())}reset(){this.#sn=void 0,this.#ln=void 0,this.#_t=void 0}resetAnchors(){this.#un(),this.#dn(),this.#hn(!0)}#Sn(e){this.#sn&&this.#sn.getParent()&&this.#sn.getParent().find(".anchor").forEach(e)}#hn(e){this.#Sn((function(t){t.visible(e)}))}setAnchorsActive(e){let t=null;t=e?e=>{this.#gn(e)}:e=>{this.#mn(e)},this.#Sn(t)}#un(){this.#Sn((function(e){e.remove()}))}#dn(){if(!this.#sn||!this.#sn.getLayer())return;const e=this.#sn.getParent(),t=this.#an.getAnchors(this.#sn,this.#on.getStyle());for(let n=0;n{e.cancelBubble=!0,t=this.#_t.mathShape})),e.on("dragmove.edit",(e=>{const t=e.target;t instanceof Fn().Shape&&(function(e,t){const n=t.getParent();Vn(t,new F(-n.x(),-n.y()),new F(e.x-n.x(),e.y-n.y()))}(this.#ln.getBaseSize(),t),void 0!==this.#an.constrainAnchorMove&&this.#an.constrainAnchorMove(t),this.#an.updateAnnotationOnAnchorMove(this.#_t,t),this.#an.updateShapeGroupOnAnchorMove(this.#_t,t,this.#on.getStyle()),t.getLayer()?t.getLayer().draw():c.warn("No layer to draw the anchor!"),e.cancelBubble=!0)})),e.on("dragend.edit",(e=>{const n=this.#_t.mathShape,i=new Kn(this.#_t,{mathShape:t},{mathShape:n},this.#ln.getDrawController());this.#on.addToUndoStack(i),t=n,e.cancelBubble=!0})),e.on("mousedown touchstart",(e=>{e.target.moveToTop()})),e.on("mouseover.edit",(e=>{const t=e.target;t instanceof Fn().Shape&&(t.stroke("#ddd"),t.getLayer()?t.getLayer().draw():c.warn("No layer to draw the anchor!"))})),e.on("mouseout.edit",(e=>{const t=e.target;t instanceof Fn().Shape&&(t.stroke("#999"),t.getLayer()?t.getLayer().draw():c.warn("No layer to draw the anchor!"))}))}#mn(e){e.off("dragstart.edit"),e.off("dragmove.edit"),e.off("dragend.edit"),e.off("mousedown touchstart"),e.off("mouseover.edit"),e.off("mouseout.edit")}}class ti{#pn;constructor(){this.createTrashIcon()}createTrashIcon(){this.#pn=new(Fn().Group);const e=new(Fn().Line)({points:[-10,-10,10,10],stroke:"red"}),t=new(Fn().Line)({points:[10,-10,-10,10],stroke:"red"});this.#pn.width(20),this.#pn.height(20),this.#pn.add(e),this.#pn.add(t)}activate(e){const t=e.getKonvaStage(),n=t.scale(),i=e.getKonvaLayer(),r={x:1/n.x,y:1/n.y};this.#pn.x(t.offset().x+t.width()/(2*n.x)),this.#pn.y(t.offset().y+t.height()/(15*n.y)),this.#pn.scale(r),i.add(this.#pn),i.draw()}changeChildrenColourOnTrashHover(e,t,n){if(this.isOverTrash(e))return this.changeGroupChildrenColour(this.#pn,"orange"),void this.changeGroupChildrenColour(t,"red");this.changeGroupChildrenColour(this.#pn,"red"),this.changeGroupChildrenColour(t,n)}changeGroupChildrenColour(e,t){e.getChildren().forEach((function(e){e instanceof Fn().Shape&&void 0!==e.stroke&&e.stroke(t)}))}remove(){this.#pn.remove()}isOverTrash(e){const t=this.#pn.width()*Math.abs(this.#pn.scaleX())/2,n=this.#pn.height()*Math.abs(this.#pn.scaleY())/2;return Math.abs(e.x-this.#pn.x()){this.#Cn=e,this.#In()})),e.on("mouseout",(()=>{this.onMouseOutShapeGroup(),this.#Cn=void 0}))}#Ln(e){e.off("mouseover"),e.off("mouseout")}addShapeListeners(e,t,n){this.#Tn(t);const i=e.getKonvaLayer(),r=t.getChildren(qn)[0];if(!(r instanceof Fn().Shape))return;r.draggable(!0);const o=t.getChildren(En)[0];if(!(o instanceof Fn().Label))return;o.draggable(!0);let a,s,l,c,u,d=!0;r.on("dragstart.draw",(t=>{c=r.stroke(),a={x:r.x(),y:r.y()},s={x:t.target.x(),y:t.target.y()},l=n.mathShape,this.#pn.activate(e),this.#fn.setAnchorsActive(!1),i.draw()})),r.on("dragmove.draw",(r=>{const o={x:r.target.x()-s.x,y:r.target.y()-s.y},a=t.getChildren();for(const e of a)e===r.target||"label"===e.name()&&!d||e.move(o);s={x:r.target.x(),y:r.target.y()},function(e,t){const n=t.getChildren(qn)[0],i=function(e){const t=e.find(".anchor");if(0===t.length)return;let n=t[0].x(),i=t[0].y();for(let e=0;e{if(this.#pn.remove(),void 0===o||void 0===o.evt)return;const s=r.x(),u=r.y(),d=Xn(o.evt),h={x:d.getX(),y:d.getY()},S=this.#vn(h,e);if(this.#pn.isOverTrash(S)){t.x(a.x),t.y(a.y),this.#fn.disable(),this.#fn.reset(),this.#pn.changeGroupChildrenColour(t,c),n.mathShape=l;const i=new _n(n,e.getDrawController());this.#on.addToUndoStack(i),i.execute(),this.onMouseOutShapeGroup()}else{const t={x:s-a.x,y:u-a.y};if(0!==t.x||0!==t.y){const t=n.mathShape,i=new Kn(n,{mathShape:l},{mathShape:t},e.getDrawController());this.#on.addToUndoStack(i),l=t}this.#fn.setAnchorsActive(!0),this.#fn.resetAnchors()}i.draw(),a={x:r.x(),y:r.y()}})),o.on("dragstart.draw",(()=>{d=!1,a={x:o.x(),y:o.y()},u=n.labelPosition})),o.on("dragend.draw",(()=>{const t=o.x()-a.x,i=o.y()-a.y;if(0!==t||0!==i){const t=new F(o.x(),o.y()),i=new Kn(n,{labelPosition:u},{labelPosition:t},e.getDrawController());this.#on.addToUndoStack(i),u=t}a={x:r.x(),y:r.y()}})),t.on("dblclick",(()=>{const t=n.textExpr;Hn.openRoiDialog(n,(n=>{const i=n.textExpr,r=new Kn(n,{textExpr:t},{textExpr:i},e.getDrawController());this.#on.addToUndoStack(r),r.execute()}))}))}removeShapeListeners(e){this.#Ln(e);const t=e.getChildren(qn)[0];t instanceof Fn().Shape&&(t.draggable(!1),t.off("dragstart.draw"),t.off("dragmove.draw"),t.off("dragend.draw"),t.off("dblclick"));const n=e.getChildren(En)[0];n instanceof Fn().Label&&(n.draggable(!1),n.off("dragstart.draw"),n.off("dragend.draw"))}}class ii{#It;#Pn=null;#At;#bt;#Ft={x:1,y:1};#Et={x:1,y:1,z:1};#Ut={x:0,y:0};#Mt={x:0,y:0};#Qt={x:0,y:0};#Vt={x:0,y:0};#Kt;#We;#Bt;#wn=null;#On;constructor(e){this.#It=e,this.#It.className+=" drawLayer"}setShapeHandler(e){this.#On=e}getDataId(){return this.#Bt}#Oe=new Ze;getKonvaStage(){return this.#Pn}getKonvaLayer(){return this.#Pn.getLayers()[0]}getDrawController(){return this.#Kt}setPlaneHelper(e){this.#We=e}getId(){return this.#It.id}removeFromDOM(){this.#It.remove()}getBaseSize(){return this.#At}getOpacity(){return this.#Pn.opacity()}setOpacity(e){this.#Pn.opacity(Math.min(Math.max(e,0),1))}addFlipOffsetX(){const e=this.#Pn.scale(),t=this.#Pn.size();this.#Vt.x+=t.width/e.x;const n=this.#Pn.offset();n.x+=this.#Vt.x,this.#Pn.offset(n)}addFlipOffsetY(){const e=this.#Pn.scale(),t=this.#Pn.size();this.#Vt.y+=t.height/e.y;const n=this.#Pn.offset();n.y+=this.#Vt.y,this.#Pn.offset(n)}flipScaleX(){this.#Et.x*=-1}flipScaleY(){this.#Et.y*=-1}flipScaleZ(){this.#Et.z*=-1}setScale(e,t){const n=this.#We.getTargetOrientedPositiveXYZ({x:e.x*this.#Et.x,y:e.y*this.#Et.y,z:e.z*this.#Et.z}),i={x:this.#Ft.x*n.x,y:this.#Ft.y*n.y},r=this.#Pn.offset();if(1===Math.abs(e.x)&&1===Math.abs(e.y)&&1===Math.abs(e.z)){const e={x:r.x-this.#Qt.x,y:r.y-this.#Qt.y};this.#Qt={x:0,y:0},this.#Pn.offset(e)}else if(void 0!==t){let e=this.#We.getPlaneOffsetFromOffset3D({x:t.getX(),y:t.getY(),z:t.getZ()});e={x:e.x+this.#Ut.x,y:e.y+this.#Ut.y};const n=si(r,this.#Pn.scale(),i,e),o={x:this.#Qt.x+n.x-r.x,y:this.#Qt.y+n.y-r.y};this.#Qt=o,this.#Pn.offset(n)}this.#Pn.scale(i),this.#An(i)}setOffset(e){const t=this.#We.getPlaneOffsetFromOffset3D(e);this.#Pn.offset({x:t.x+this.#Mt.x+this.#Ut.x+this.#Qt.x+this.#Vt.x,y:t.y+this.#Mt.y+this.#Ut.y+this.#Qt.y+this.#Vt.y})}setBaseOffset(e,t){const n=this.#We.getNativeScrollIndex(),i=this.#We.getPlaneOffsetFromOffset3D({x:0===n?e.getX():t.getX(),y:1===n?e.getY():t.getY(),z:2===n?e.getZ():t.getZ()}),r=this.#Ut.x!==i.x||this.#Ut.y!==i.y;if(r){const e=this.#Pn.offset();this.#Pn.offset({x:e.x-this.#Ut.x+i.x,y:e.y-this.#Ut.y+i.y}),this.#Ut=i}return r}display(e){this.#It.style.display=e?"":"none"}isVisible(){return""===this.#It.style.display}draw(){this.#Pn.draw()}initialise(e,t){this.#At=e,this.#bt=t,this.#Pn=new(Fn().Stage)({container:this.#It,width:this.#At.x,height:this.#At.y,listening:!1}),this.#Pn.getContent().setAttribute("style","");const n=new(Fn().Layer)({listening:!1,visible:!0});this.#Pn.add(n)}setAnnotationGroup(e,t,n){if(this.#Bt=t,e.addEventListener("addannotation",(e=>{this.#bn(e.data,!0),this.getKonvaLayer().draw()})),e.addEventListener("updateannotation",(e=>{this.#xn(e.data),this.getKonvaLayer().draw()})),e.addEventListener("removeannotation",(e=>{this.#Rn(e.data),this.getKonvaLayer().draw()})),this.#Kt=new $n(e),0!==e.getLength())for(const t of e.getList())this.#bn(t,!1),n(new Zn(t,this.getDrawController()))}#Fn(e){const t=e.getOriginIndex();if(void 0!==t)return t.toStringId([2]);console.log("Unknown reference origin for annotation: "+e.referenceSopUID)}#En(e){let t;const n=this.#Fn(e),i=this.getKonvaLayer().getChildren(Mn(n));if(0!==i.length){const n=i[0];if(!(n instanceof Fn().Group))return;const r=n.getChildren(Mn(e.id));0!==r.length&&r[0]instanceof Fn().Group&&(t=r[0])}return t}#bn(e,t){const n=this.#Fn(e);let i=this.getKonvaLayer().getChildren(Mn(n))[0];if(void 0===i&&(i=new(Fn().Group)({id:n,name:"position-group",visible:t}),this.getKonvaLayer().add(i)),!(i instanceof Fn().Group))return;const r=new xn,o=this.getKonvaStage();r.setZoomScale(o.scale());const a=e.getFactory().createShapeGroup(e,r);i.add(a),t&&void 0!==this.#On&&this.#On.addShapeListeners(this,a,e)}#Rn(e){const t=this.#En(e);t instanceof Fn().Group&&t.remove()}#xn(e){e.updateQuantification(),this.#Rn(e),this.#bn(e,!0)}fitToContainer(e,t,n){this.#Pn.width(e.x),this.#Pn.height(e.y);const i={x:t*this.#bt.x,y:t*this.#bt.y},r={x:this.#Pn.scale().x*i.x/this.#Ft.x,y:this.#Pn.scale().y*i.y/this.#Ft.y};this.#Pn.scale().x===r.x&&this.#Pn.scale().y===r.y||(this.#Ft=i,this.#Pn.scale(r));const o={x:n.x/i.x,y:n.y/i.y},a={x:e.x/i.x,y:e.y/i.y},s={x:0!==this.#Vt.x?a.x:0,y:0!==this.#Vt.y?a.y:0};this.#Mt.x===o.x&&this.#Mt.y===o.y&&this.#Vt.x===s.x&&this.#Vt.y===s.y||(this.#Pn.offset({x:this.#Pn.offset().x+o.x-this.#Mt.x+s.x-this.#Vt.x,y:this.#Pn.offset().y+o.y-this.#Mt.y+s.y-this.#Vt.y}),this.#Vt=s,this.#Mt=o)}isGroupVisible(e){const t=this.getGroup(e);return void 0!==t&&t.isVisible()}toggleGroupVisibility(e){const t=this.getGroup(e);return void 0!==t&&(t.visible(!t.isVisible()),this.draw(),!0)}deleteDraw(e,t){}deleteDraws(e){}getNumberOfDraws(){const e=this.getKonvaLayer().getChildren();let t=0;for(const n of e)n instanceof Fn().Group&&(t+=n.getChildren().length);return t}bindInteraction(){this.#Pn.listening(!0),this.#It.style.pointerEvents="auto";const e=kn;for(let t=0;te.id()===this.#wn));let t;return 1===e.length?e[0]instanceof Fn().Group&&(t=e[0]):0===e.length?(t=new(Fn().Group),t.name("position-group"),t.id(this.#wn),t.visible(!0),this.getKonvaLayer().add(t)):c.warn("Unexpected number of draw position groups."),t}getNonCurrentPosGroup(){return this.getKonvaLayer().getChildren((e=>e.id()!==this.#wn))}getGroup(e){const t=this.getKonvaLayer().findOne("#"+e);return void 0===t&&c.warn("Cannot find node with id: "+e),t}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{e.srclayerid=this.getId(),e.dataid=this.#Bt,this.#Oe.fireEvent(e)};#An(e){const t=2/e.x,n=2/e.y,i=this.#Pn.find("Label");for(let e=0;e{this.#Gn()};getDivId(){return this.#It.id}getScale(){return this.#Rt}getBaseScale(){return this.#ot}getAddedScale(){return{x:this.#Rt.x/this.#ot.x,y:this.#Rt.y/this.#ot.y,z:this.#Rt.z/this.#ot.z}}getOffset(){return this.#qt}getNumberOfLayers(){let e=0;return this.#qn.forEach((t=>{void 0!==t&&e++})),e}includes(e){if(void 0===e)return!1;for(const t of this.#qn)if(void 0!==t&&t.getId()===e)return!0;return!1}getNumberOfViewLayers(){let e=0;return this.#qn.forEach((t=>{void 0!==t&&t instanceof jn&&e++})),e}getActiveViewLayer(){let e;if(void 0!==this.#Un){const t=this.#qn[this.#Un];t instanceof jn&&(e=t)}return e}getBaseViewLayer(){let e;return this.#qn[0]instanceof jn&&(e=this.#qn[0]),e}getViewLayersByDataId(e){const t=[];for(const n of this.#qn)n instanceof jn&&n.getDataId()===e&&t.push(n);return t}searchViewLayers(e){const t=[];for(const n of this.#qn)n instanceof jn&&n.getViewController().equalImageMeta(e)&&t.push(n);return t}getViewDataIndices(){const e=[];for(const t of this.#qn)t instanceof jn&&e.push(t.getDataId());return e}getActiveDrawLayer(){let e;if(void 0!==this.#Mn){const t=this.#qn[this.#Mn];t instanceof ii&&(e=t)}return e}getDrawLayersByDataId(e){const t=[];for(const n of this.#qn)n instanceof ii&&n.getDataId()===e&&t.push(n);return t}setActiveViewLayer(e){this.#qn[e]instanceof jn?(this.#Un=e,this.#Re({type:"activelayerchange",value:[this.#qn[e]]})):c.warn("No view layer to set as active with index: "+e)}setActiveViewLayerByDataId(e){let t;for(let n=0;n0;)e[0].remove()}removeLayersByDataId(e){for(const t of this.#qn)void 0!==t&&t.getDataId()===e&&this.removeLayer(t)}removeLayer(e){const t=this.#qn.findIndex((t=>t===e));if(-1===t)throw new Error("Cannot find layer to remove");e instanceof jn?(this.#Xn(e),this.#Un===t&&(this.#Un=void 0)):(this.#Yn(e),this.#Mn===t&&(this.#Mn=void 0)),this.#qn[t]=void 0,e.removeFromDOM()}#Gn(e){let t;void 0===e&&(e=this.#Ve),this.#kn();for(const e of this.#qn)if(e instanceof jn){t=e;break}if(void 0===t)return void c.warn("No layer to show crosshair");const n=t.getViewController().getPlanePositionFromPosition(e),i=t.planePosToDisplay(n);if(void 0!==i.getY()){const e=document.createElement("hr");e.id=this.getDivId()+"-scroll-crosshair-horizontal",e.className="horizontal",e.style.width=this.#It.offsetWidth+"px",e.style.left="0px",e.style.top=i.getY()+"px",this.#Vn.push(e),this.#It.appendChild(e)}if(void 0!==i.getX()){const e=document.createElement("hr");e.id=this.getDivId()+"-scroll-crosshair-vertical",e.className="vertical",e.style.width=this.#It.offsetHeight+"px",e.style.left=i.getX()+"px",e.style.top="0px",this.#Vn.push(e),this.#It.appendChild(e)}}#kn(){for(const e of this.#Vn)e.remove();this.#Vn=[]}showTooltip(e){this.removeTooltipDiv();const t=this.getActiveViewLayer(),n=t.getViewController(),i=t.displayToPlanePos(e),r=n.getPositionFromPlanePoint(i),o=n.getRescaledImageValue(r);if(void 0!==o){const t=document.createElement("span");t.id="scroll-tooltip",t.style.left=e.getX()+10+"px",t.style.top=e.getY()+10+"px";let i=G(o,3).toString();void 0!==n.getPixelUnit()&&(i+=" "+n.getPixelUnit()),t.appendChild(document.createTextNode(i)),this.#Nn=t,this.#It.appendChild(t)}}removeTooltipDiv(){void 0!==this.#Nn&&(this.#Nn.remove(),this.#Nn=void 0)}someViewLayer(e){let t=!1;for(const n of this.#qn)if(n instanceof jn&&e(n)){t=!0;break}return t}isPositionInBounds(e){return this.someViewLayer((function(t){return t.getViewController().isPositionInBounds(e)}))}canScroll(){return this.someViewLayer((function(e){return e.getViewController().canScroll()}))}moreThanOne(e){return this.someViewLayer((function(t){return t.getViewController().moreThanOne(e)}))}updateLayersToPositionChange=e=>{for(const e of this.#qn)e instanceof jn&&(e.removeEventListener("positionchange",this.updateLayersToPositionChange),e.removeEventListener("positionchange",this.#Re));const t=new s(e.value[0]),n=new q(e.value[1]);let i,r,o,a;this.#Ve=n,this.#Qn&&this.#Gn(n);for(const s of this.#qn){if(void 0===s)continue;let l=!1;if(s instanceof jn){const e=s.getViewController(),t=e.getOrigin(),l=e.getOrigin(n);if(void 0===r)i=t,r=l,o=new w(0,0,0),a=new w(0,0,0);else if(e.isPositionInBounds(n)&&void 0!==l){const e=i.minus(t);o=new w(e.getX(),e.getY(),e.getZ());const n=r.minus(l);a=new w(n.getX(),n.getY(),n.getZ())}}void 0!==o&&void 0!==a&&(l=s.setBaseOffset(o,a,r,i)),s instanceof ii&&(o=void 0,a=void 0);let c=!1;s.getId()!==e.srclayerid&&(c=s.setCurrentPosition(n,t)),!c&&l&&s.draw()}for(const e of this.#qn)e instanceof jn&&(e.addEventListener("positionchange",this.updateLayersToPositionChange),e.addEventListener("positionchange",this.#Re))};getDivToWorldSizeRatio(){if(0===this.#It.offsetWidth&&0===this.#It.offsetHeight)throw new Error("Cannot fit to zero sized container.");const e=this.getMaxWorldSize();if(void 0!==e){if(0===this.#It.offsetHeight){const t=this.#It.offsetWidth/e.x,n=e.y*t;this.#It.style.height=n+"px"}return Math.min(this.#It.offsetWidth/e.x,this.#It.offsetHeight/e.y)}}fitToContainer(e){const t=this.getMaxWorldSize();if(void 0===t)return;const n={x:this.#It.offsetWidth,y:this.#It.offsetHeight},i={x:-.5*(n.x-Math.floor(t.x*e)),y:-.5*(n.y-Math.floor(t.y*e))};for(const t of this.#qn)void 0!==t&&t.fitToContainer(n,e,i);this.#Qn&&this.#Gn()}getMaxWorldSize(){let e={x:0,y:0};for(const t of this.#qn)if(t instanceof jn){const n=t.getImageWorldSize();n.x>e.x&&(e.x=n.x),n.y>e.y&&(e.y=n.y)}return 0===e.x&&0===e.y&&(e=void 0),e}flipScaleZ(){this.#ot.z*=-1,this.setScale(this.#ot)}addScale(e,t){const n={x:this.#Rt.x*(1+e),y:this.#Rt.y*(1+e),z:this.#Rt.z*(1+e)};this.setScale(n,t)}setScale(e,t){this.#Rt=e;for(const e of this.#qn)void 0!==e&&e.setScale(this.#Rt,t);const n=[e.x,e.y,e.z];void 0!==t&&(n.push(t.getX()),n.push(t.getY()),n.push(t.getZ())),this.#Re({type:"zoomchange",value:n})}addTranslation(e){this.setOffset({x:this.#qt.x-e.x,y:this.#qt.y-e.y,z:this.#qt.z-e.z})}setOffset(e){this.#qt=e;for(const e of this.#qn)void 0!==e&&e.setOffset(this.#qt);this.#Re({type:"offsetchange",value:[this.#qt.x,this.#qt.y,this.#qt.z]})}reset(){this.setScale(this.#ot),this.setOffset({x:0,y:0,z:0})}draw(){for(const e of this.#qn)void 0!==e&&e.draw()}display(e){for(const t of this.#qn)void 0!==t&&t.display(e)}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}}const ci={WindowLevelBinder:class{getEventType=function(){return"wlchange"};getCallback=function(e){return function(t){const n=e.getViewLayersByDataId(t.dataid);if(0!==n.length){const e=n[0].getViewController();if(2===t.value.length){const n=new u(t.value[0],t.value[1]);e.setWindowLevel(n)}3===t.value.length&&e.setWindowLevelPreset(t.value[2])}}}},PositionBinder:class{getEventType=function(){return"positionchange"};getCallback=function(e){return function(t){const n=t.value[1],i=e.getActiveViewLayer().getViewController(),r=i.getCurrentPosition(),o=r.length(),a=n.length;a!==o&&(a===o-1?n.push(r.get(o-1)):a===o+1&&n.pop()),i.setCurrentPosition(new q(n))}}},ZoomBinder:class{getEventType=function(){return"zoomchange"};getCallback=function(e){return function(t){const n={x:t.value[0],y:t.value[1],z:t.value[2]};let i;6===t.value.length&&(i=new E(t.value[3],t.value[4],t.value[5])),e.setScale(n,i),e.draw()}}},OffsetBinder:class{getEventType=function(){return"offsetchange"};getCallback=function(e){return function(t){e.setOffset({x:t.value[0],y:t.value[1],z:t.value[2]}),e.draw()}}},OpacityBinder:class{getEventType=function(){return"opacitychange"};getCallback=function(e){return function(t){if(void 0===t.dataid)return;const n=e.getViewLayersByDataId(t.dataid);0!==n.length&&(n[0].setOpacity(t.value),n[0].draw())}}},ColourMapBinder:class{getEventType=function(){return"colourmapchange"};getCallback=function(e){return function(t){const n=e.getViewLayersByDataId(t.dataid);0!==n.length&&n[0].getViewController().setColourMap(t.value[0])}}}};class ui{#jn=[];#Zn;#Gt=!1;#_n=[];#Kn=null;getLayerGroup(e){return this.#jn[e]}getNumberOfLayerGroups(){return this.#jn.length}getActiveLayerGroup(){return this.getLayerGroup(this.#Zn)}setActiveLayerGroup(e){void 0!==this.getLayerGroup(e)?this.#Zn=e:c.warn("No layer group to set as active with index: "+e)}getViewLayersByDataId(e){let t=[];for(let n=0;nt===e));if(-1===t)throw new Error("Cannot find layerGroup to remove");this.unbindLayerGroups(),e.empty(),this.#jn.splice(t,1),this.#Zn===t&&(this.#Zn=void 0),this.bindLayerGroups()}reset(){for(let e=0;e{this.#$n(t,e),e.getCallback(this.#jn[t])(n),this.#Jn(t,e)}},this.#Kn[t].push(n)),n.callback}#Jn(e,t){for(let n=0;n0&&(--this.#si,this.#ai[this.#si].undo(),this.#Re({type:"undo",command:this.#ai[this.#si].getName()}))}redo(){this.#si{this.#Oe.fireEvent(e)}}class yi{#li;#ci=null;#Kn=[];#ui={};constructor(e){this.#li=e}init(){for(const e in this.#li)this.#li[e].init();this.enableShortcuts(!0)}enableShortcuts(e){e?window.addEventListener("keydown",this.#di("window","keydown"),!0):window.removeEventListener("keydown",this.#di("window","keydown"),!0)}getToolList(){return this.#li}hasTool(e){return void 0!==this.getToolList()[e]}getSelectedTool(){return this.#ci}getSelectedToolEventHandler(e){return this.getSelectedTool()[e]}setSelectedTool(e){if(!this.hasTool(e))throw new Error("Unknown tool: '"+e+"'");this.#ci&&this.#ci.activate(!1),this.#ci=this.#li[e],this.#ci.activate(!0)}setToolFeatures(e){this.getSelectedTool()&&this.getSelectedTool().setFeatures(e)}bindLayerGroup(e,t){const n=e.getDivId();e.addEventListener("activelayerchange",this.#hi(n)),this.#Si(n,t)}#Si(e,t){void 0!==this.#ui[e]&&this.#gi(this.#ui[e]),this.#ui[e]=t,this.#mi(t)}#hi(e){return t=>{const n=t.value[0];this.#Si(e,n)}}#mi(e){e.bindInteraction();const t=kn;for(let n=0;n{if(this.#ci){const t=this.#ci[e.type];t&&t(e)}};this.#Kn[e][t]=n}return this.#Kn[e][t]}}class Ci{#pi=[];#fi=2;#Di;constructor(e){this.#Di=e}setNumberOfDimensions(e){this.#fi=e}setNToLoad(e){for(let t=0;t{if(!e.lengthComputable)return;if(void 0===e.subindex)return;if(void 0===e.index)return;const t=100*e.loaded/e.total;this.#pi[e.index][e.subindex]=t;let n=null;n=void 0!==e.item?e.item:{loaded:this.#yi(e.index),total:100,source:e.source},this.#Di({lengthComputable:!0,loaded:this.#Ci(),total:100,item:n})};#yi(e){let t=0;for(let n=0;n{n.index=e,n.subindex=t,this.onprogress(n)}}getUndefinedMonoProgressHandler(e){return t=>{t.subindex=e,this.onprogress(t)}}}class vi{#vi=null;#Ii=[];#Ti=null;#Li=0;#Pi=0;#wi;#F;getDefaultCharacterSet(){return this.#F}setDefaultCharacterSet(e){this.#F=e}#Oi(e){this.#vi=e,this.#Li=0,this.#Pi=0,this.#wi=!1,this.#Ai(),this.#bi()}#xi(e){this.#Ii.push(e)}#Ai(){this.#Ii=[]}#Ri(e){this.#Ti=e}#bi(){this.#Ti=null}#Fi=e=>{this.#Li++,this.#Li===this.#vi.length&&this.onload({source:this.#vi})};#Ei=e=>{this.#Pi++,this.#Pi===this.#vi.length&&this.onloadend({source:this.#vi})};#qi(e,t){return n=>{n.source=t,e(n)}}load(e,t){this.onloadstart({source:e}),1===e.length&&(M(e[0],"DICOMDIR")||M(e[0],".dcmdir"))?this.#Ui(e[0],t):this.#Mi(e,t)}#Qi(e,t,n){return i=>{const r=i.target.status;200!==r&&0!==r?(this.onerror({source:t,error:"GET "+i.target.responseURL+" "+i.target.status+" ("+i.target.statusText+")",target:i.target}),this.#Ei()):e.load(i.target.response,t,n)}}#Mi(e,t){if(void 0===e||0===e.length)return;this.#Oi(e);const n=new Ci(this.onprogress);n.setNToLoad(e.length);const i=[];for(let e=0;e{s{this.#Ei(),s(e)};const c=this.#qi(this.onabort,r);a.onabort=e=>{this.#Ei(),c(e)},1===o.loadUrlAs()&&(a.responseType="arraybuffer"),this.#xi(a)}let c=this.#Ii.length;void 0!==t&&void 0!==t.batchSize&&0!==c&&(c=Math.min(t.batchSize,this.#Ii.length));for(let e=0;e{const i=n.target.status;if(200!==i&&0!==i)this.onerror({source:e,error:"GET "+n.target.responseURL+" "+n.target.status+" ("+n.target.statusText+")",target:n.target}),this.onloadend({});else{const i=function(e){const t=new je;t.parse(e);const n=t.getDicomElements();if(void 0===n["00041220"]||void 0===n["00041220"].value)return void c.warn("No Directory Record Sequence found in DICOMDIR.");const i=n["00041220"].value;if(0===i.length)return void c.warn("The Directory Record Sequence of the DICOMDIR is empty.");const r=[];let o=null,a=null;for(let e=0;e{this.#qi(this.onerror,e)(t),this.onloadend({})},n.onabort=t=>{this.#qi(this.onabort,e)(t),this.onloadend({})},n.send(null)}abort(){this.#wi=!0;for(let e=0;e0){const t=this.freeThreads.shift();this.runningThreads.push(t),t.run(e)}else this.taskQueue.push(e)}abort(){this.#Vi(),this.onabort({type:"work-abort"}),this.onworkend({type:"work-end"})}onTaskEnd(e){if(this.taskQueue.length>0){const t=this.taskQueue.shift();e.run(t)}else{e.stop(),this.freeThreads.push(e);for(let t=0;t{this.#Vi(),this.onerror({error:e}),this.onworkend({type:"work-end"})};#Vi(){this.taskQueue=[];for(let e=0;e{e.itemNumber=this.runningTask.info.itemNumber,e.numberOfItems=this.runningTask.info.numberOfItems,e.index=this.runningTask.info.index,this.parentPool.onworkitem(e),this.parentPool.onTaskEnd(this)};onerror=e=>{e.itemNumber=this.runningTask.info.itemNumber,e.numberOfItems=this.runningTask.info.numberOfItems,e.index=this.runningTask.info.index,this.parentPool.handleWorkerError(e),this.stop()}}class Li{constructor(e,t,n){this.script=e,this.startMessage=t,this.info=n}}const Pi="undefined"!=typeof JpegImage,wi="undefined"!=typeof jpeg&&void 0!==jpeg.lossless,Oi="undefined"!=typeof JpxImage,Ai={jpeg2000:"","jpeg-lossless":"","jpeg-baseline":"",rle:""};class bi{#Ni;#Bi=new Ii(10);#Gi=!1;constructor(e,t){this.#Ni=e}decode(e,t,n){this.#Gi||(this.#Gi=!0,this.#Bi.onworkstart=this.ondecodestart,this.#Bi.onworkitem=this.ondecodeditem,this.#Bi.onwork=this.ondecoded,this.#Bi.onworkend=this.ondecodeend,this.#Bi.onerror=this.onerror,this.#Bi.onabort=this.onabort);const i=new Li(this.#Ni,{buffer:e,meta:t},n);this.#Bi.addWorkerTask(i)}abort(){this.#Bi.abort()}ondecodestart(e){}ondecodeditem(e){}ondecoded(e){}ondecodeend(e){}onerror(e){}onabort(e){}}class xi{#ki;#Hi;constructor(e,t){this.#ki=e,this.#Hi=t}#zi=0;decode(e,t,n){++this.#zi;let i=null,r=null;if("jpeg-lossless"===this.#ki){if(!wi)throw new Error("No JPEG Lossless decoder provided");const n=t.bitsAllocated/8,o=new Uint8Array(e);i=new jpeg.lossless.Decoder;const a=i.decode(o.buffer,0,o.buffer.byteLength,n);8===t.bitsAllocated?r=t.isSigned?new Int8Array(a.buffer):new Uint8Array(a.buffer):16===t.bitsAllocated&&(r=t.isSigned?new Int16Array(a.buffer):new Uint16Array(a.buffer))}else if("jpeg-baseline"===this.#ki){if(!Pi)throw new Error("No JPEG Baseline decoder provided");i=new JpegImage,i.parse(e),r=i.getData(i.width,i.height)}else if("jpeg2000"===this.#ki){if(!Oi)throw new Error("No JPEG 2000 decoder provided");i=new JpxImage,i.parse(e),r=i.tiles[0].items}else"rle"===this.#ki&&(i=new dwvdecoder.RleDecoder,r=i.decode(e,t.bitsAllocated,t.isSigned,t.sliceSize,t.samplesPerPixel,t.planarConfiguration));this.ondecodeditem({data:[r],index:n.index,numberOfItems:n.numberOfItems,itemNumber:n.itemNumber}),this.#zi===this.#Hi&&(this.ondecoded({}),this.ondecodeend({}))}abort(){this.onabort({}),this.ondecodeend({})}ondecodestart(e){}ondecodeditem(e){}ondecoded(e){}ondecodeend(e){}onerror(e){}onabort(e){}}class Ri{#Gi=!1;#Wi=null;constructor(e,t){void 0!==Ai&&void 0!==Ai[e]?this.#Wi=new bi(Ai[e],t):this.#Wi=new xi(e,t)}decode(e,t,n){this.#Gi||(this.#Gi=!0,this.#Wi.ondecodestart=this.ondecodestart,this.#Wi.ondecodeditem=this.ondecodeditem,this.#Wi.ondecoded=this.ondecoded,this.#Wi.ondecodeend=this.ondecodeend,this.#Wi.onerror=this.onerror,this.#Wi.onabort=this.onabort),this.#Wi.decode(e,t,n)}abort(){this.#Wi.abort()}ondecodestart(e){}ondecodeditem(e){}ondecoded(e){}ondecodeend(e){}onerror(e){}onabort(e){}}const Fi={NumericValue:"0040A30A",FloatingPointValue:"0040A161",RationalNumeratorValue:"0040A162",RationalDenominatorValue:"0040A163",MeasurementUnitsCodeSequence:"004008EA"};class Ei{numericValue;floatingPointValue;rationalNumeratorValue;rationalDenominatorValue;measurementUnitsCode;toString(){return this.numericValue+" "+this.measurementUnitsCode.toString()}}function qi(e){const t={};return void 0!==e.measurementUnitsCode&&(t.MeasurementUnitsCodeSequence={value:[kt(e.measurementUnitsCode)]}),void 0!==e.floatingPointValue&&(t.FloatingPointValue=e.floatingPointValue),void 0!==e.rationalNumeratorValue&&(t.RationalNumeratorValue=e.rationalNumeratorValue),void 0!==e.rationalDenominatorValue&&(t.RationalDenominatorValue=e.rationalDenominatorValue),void 0!==e.numericValue&&(t.NumericValue=e.numericValue),t}const Ui={MeasuredValueSequence:"0040A300",NumericValueQualifierCodeSequence:"0040A301"};class Mi{measuredValue;numericValueQualifierCode;toString(){let e=this.measuredValue.toString();return void 0!==this.numericValueQualifierCode&&(e+=" "+this.numericValueQualifierCode.toString()),e}}function Qi(e){const t={};return void 0!==e.measuredValue&&(t.MeasuredValueSequence={value:[qi(e.measuredValue)]}),void 0!==e.numericValueQualifierCode&&(t.NumericValueQualifierCodeSequence={value:[kt(e.numericValueQualifierCode)]}),t}const Vi={ReferencedSOPClassUID:"00081150",ReferencedSOPInstanceUID:"00081155"};class Ni{referencedSOPClassUID;referencedSOPInstanceUID;toString(){return this.referencedSOPInstanceUID+" (class: "+this.referencedSOPClassUID+")"}}function Bi(e){const t=new Ni;return void 0!==e[Vi.ReferencedSOPClassUID]&&(t.referencedSOPClassUID=e[Vi.ReferencedSOPClassUID].value[0]),void 0!==e[Vi.ReferencedSOPInstanceUID]&&(t.referencedSOPInstanceUID=e[Vi.ReferencedSOPInstanceUID].value[0]),t}function Gi(e){const t={};return void 0!==e.referencedSOPClassUID&&(t.ReferencedSOPClassUID=e.referencedSOPClassUID),void 0!==e.referencedSOPInstanceUID&&(t.ReferencedSOPInstanceUID=e.referencedSOPInstanceUID),t}const ki={ReferencedFrameNumber:"00081160",ReferencedSOPSequence:"00081199",ReferencedSegmentNumber:"0062000B"};class Hi{referencedSOPSequence;referencedFrameNumber;referencedSegmentNumber;fiducialUID;toString(){return this.referencedSOPSequence.toString()}}function zi(e){const t={};return void 0!==e.referencedFrameNumber&&(t.ReferencedFrameNumber=e.referencedFrameNumber),void 0!==e.referencedSOPSequence&&(t.ReferencedSOPSequence={value:[Gi(e.referencedSOPSequence)]}),void 0!==e.referencedSegmentNumber&&(t.ReferencedSegmentNumber=e.referencedSegmentNumber),t}const Wi={PixelOriginInterpretation:"00480301",GraphicData:"00700022",GraphicType:"00700023",FiducialUID:"0070031A"},Xi="CIRCLE";class Yi{graphicData;graphicType;pixelOriginInterpretation;fiducialUID;toString(){return this.graphicType+" {"+this.graphicData+"}"}}function ji(e){const t={};return void 0!==e.pixelOriginInterpretation&&(t.PixelOriginInterpretation=e.pixelOriginInterpretation),void 0!==e.graphicData&&(t.GraphicData=e.graphicData),void 0!==e.graphicType&&(t.GraphicType=e.graphicType),void 0!==e.fiducialUID&&(t.FiducialUID=e.fiducialUID),t}function Zi(e){const t=new Yi;if(e instanceof An){const n=e.getCenter(),i=new F(n.getX()+e.getRadius(),n.getY());t.graphicData=[n.getX().toString(),n.getY().toString(),i.getX().toString(),i.getY().toString()],t.graphicType=Xi}return t}function _i(e){let t;if(e.graphicType===Xi){const n=new F(parseFloat(e.graphicData[0]),parseFloat(e.graphicData[1])),i=new F(parseFloat(e.graphicData[2]),parseFloat(e.graphicData[3])).getDistance(n);t=new An(n,i)}return t}const Ki={GraphicData:"00700022",GraphicType:"00700023",ReferencedFrameofReferenceUID:"30060024",FiducialUID:"0070031A"};class Ji{graphicData;graphicType;referencedFrameofReferenceUID;fiducialUID;toString(){return this.graphicType+"{"+this.graphicData+"}"}}function $i(e){const t={};return void 0!==e.graphicData&&(t.GraphicData=e.graphicData),void 0!==e.graphicType&&(t.GraphicType=e.graphicType),void 0!==e.referencedFrameofReferenceUID&&(t.ReferencedFrameofReferenceUID=e.referencedFrameofReferenceUID),void 0!==e.fiducialUID&&(t.FiducialUID=e.fiducialUID),t}const er={ReferencedSOPSequence:"00081199",RelationshipType:"0040A010",ValueType:"0040A040",ConceptNameCodeSequence:"0040A043",ConceptCodeSequence:"0040A168",ContentSequence:"0040A730",DateTime:"0040A120",Date:"0040A121",Time:"0040A122",UID:"0040A124",PersonName:"0040A123",TextValue:"0040A160",ContinuityOfContent:"0040A050"},tr="HAS PROPERTIES",nr="SELECTED FROM",ir={text:"TEXT",num:"NUM",code:"CODE",date:"DATE",time:"TIME",datetime:"DATETIME",uidref:"UIDREF",pname:"PNAME",composite:"COMPOSITE",image:"IMAGE",waveform:"WAVEFORM",scoord:"SCOORD",scoord3d:"SCOORD3D",tcoord:"TCOORD",container:"CONTAINER",table:"TABLE"},rr={TEXT:"TextValue",DATE:"Date",TIME:"Time",DATETIME:"DateTime",UIDREF:"UID",PNAME:"PersonName",CONTAINER:"ContinuityOfContent"};class or{valueType;conceptNameCode;relationshipType;contentSequence;value;constructor(e){this.valueType=e}toString(e){void 0===e&&(e="");let t="";if(void 0!==this.relationshipType&&(t+="("+this.relationshipType+") "),t+=this.valueType+": ",void 0!==this.conceptNameCode&&(t+=this.conceptNameCode.toString()),t+=" = "+this.value.toString(),void 0!==this.contentSequence)for(const n of this.contentSequence)t+="\n"+e+"- "+n.toString(e+" ");return t}}function ar(e){let t="";void 0!==e[er.ValueType]&&(t=e[er.ValueType].value[0]);const n=new or(t);if(void 0!==e[er.RelationshipType]&&(n.relationshipType=e[er.RelationshipType].value[0]),void 0!==e[er.ConceptNameCodeSequence]&&(n.conceptNameCode=Gt(e[er.ConceptNameCodeSequence].value[0])),t===ir.code)n.value=Gt(e[er.ConceptCodeSequence].value[0]);else if(t===ir.num)n.value=function(e){const t=new Mi;return void 0!==e[Ui.MeasuredValueSequence]&&(t.measuredValue=function(e){const t=new Ei;return void 0!==e[Fi.NumericValue]&&(t.numericValue=e[Fi.NumericValue].value[0]),void 0!==e[Fi.FloatingPointValue]&&(t.floatingPointValue=e[Fi.FloatingPointValue].value[0]),void 0!==e[Fi.RationalNumeratorValue]&&(t.rationalNumeratorValue=e[Fi.RationalNumeratorValue].value[0]),void 0!==e[Fi.RationalDenominatorValue]&&(t.rationalDenominatorValue=e[Fi.RationalDenominatorValue].value[0]),void 0!==e[Fi.MeasurementUnitsCodeSequence]&&(t.measurementUnitsCode=Gt(e[Fi.MeasurementUnitsCodeSequence].value[0])),t}(e[Ui.MeasuredValueSequence].value[0])),void 0!==e[Ui.NumericValueQualifierCodeSequence]&&(t.numericValueQualifierCode=Gt(e[Ui.NumericValueQualifierCodeSequence].value[0])),t}(e);else if(t===ir.image)n.value=function(e){const t=new Hi;return void 0!==e[ki.ReferencedFrameNumber]&&(t.referencedFrameNumber=e[ki.ReferencedFrameNumber].value[0]),void 0!==e[ki.ReferencedSOPSequence]&&(t.referencedSOPSequence=Bi(e[ki.ReferencedSOPSequence].value[0])),void 0!==e[ki.ReferencedSegmentNumber]&&(t.referencedSegmentNumber=e[ki.ReferencedSegmentNumber].value[0]),t}(e);else if(t===ir.composite)n.value=Bi(e[er.ReferencedSOPSequence].value[0]);else if(t===ir.scoord)n.value=function(e){const t=new Yi;return void 0!==e[Wi.GraphicData]&&(t.graphicData=e[Wi.GraphicData].value),void 0!==e[Wi.GraphicType]&&(t.graphicType=e[Wi.GraphicType].value[0]),void 0!==e[Wi.PixelOriginInterpretation]&&(t.pixelOriginInterpretation=e[Wi.PixelOriginInterpretation].value[0]),void 0!==e[Wi.FiducialUID]&&(t.fiducialUID=e[Wi.FiducialUID].value[0]),t}(e);else 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t=0,n=0;for(this.visited=[],n=0;nethis.getMax()?t:e))}}class Hr{getName(){return"Sharpen"}#Gr=null;setOriginalImage(e){this.#Gr=e}getOriginalImage(){return this.#Gr}update(){return this.getOriginalImage().convolute2D([0,-1,0,-1,5,-1,0,-1,0])}}class zr{getName(){return"Sobel"}#Gr=null;setOriginalImage(e){this.#Gr=e}getOriginalImage(){return this.#Gr}update(){const e=this.getOriginalImage(),t=e.convolute2D([1,0,-1,2,0,-2,1,0,-1]),n=e.convolute2D([1,2,1,0,0,0,-1,-2,-1]);return t.compose(n,(function(e,t){return Math.sqrt(e*e+t*t)}))}}class Wr{#kr;#Bt;#on;constructor(e,t,n){this.#kr=e,this.#Bt=t,this.#on=n}getName(){return"Filter-"+this.#kr.getName()}execute(){this.#on.setImage(this.#Bt,this.#kr.update()),this.#on.render(this.#Bt);const e={type:"filterrun",id:this.getName(),dataId:this.#Bt};this.onExecute(e)}undo(){this.#on.setImage(this.#Bt,this.#kr.getOriginalImage()),this.#on.render(this.#Bt);const e={type:"filterundo",id:this.getName(),dataid:this.#Bt};this.onUndo(e)}onExecute(e){}onUndo(e){}}const Xr={},Yr={WindowLevel:class{#on;#Hr=!1;#zr;#Wr;constructor(e){this.#on=e,this.#Wr=new wr(e)}#Xr(e){this.#Hr=!0,this.#zr=e}#Yr(e,t){if(!this.#Hr)return;const n=this.#on.getLayerGroupByDivId(t).getActiveViewLayer().getViewController(),i=e.getX()-this.#zr.getX(),r=this.#zr.getY()-e.getY(),o=n.getImageRescaledDataRange(),a=.01*(o.max-o.min),s=n.getWindowLevel().center,l=n.getWindowLevel().width,c=s+Math.round(r*a);let d=l+Math.round(i*a);var h;d=(h=d)<1?1:h;const S=new u(c,d);n.setWindowLevel(S),this.#zr=e}#jr(){this.#Hr&&(this.#Hr=!1)}mousedown=e=>{const t=Xn(e);this.#Xr(t)};mousemove=e=>{const t=Xn(e),n=oi(e);this.#Yr(t,n.groupDivId)};mouseup=e=>{this.#jr()};mouseout=e=>{this.#jr()};touchstart=e=>{const t=Wn(e);this.#Xr(t[0])};touchmove=e=>{const t=Wn(e),n=oi(e);this.#Yr(t[0],n.groupDivId)};touchend=e=>{this.#jr()};dblclick=e=>{const 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o=e.getY()-this.#zr.getY(),a=Math.abs(o)>15;a&&n.canScroll()&&(r=o>0?i.getDecrementScrollPosition():i.getIncrementScrollPosition());const s=e.getX()-this.#zr.getX(),l=Math.abs(s)>15;l&&n.moreThanOne(3)&&(r=s>0?i.getIncrementPosition(3):i.getDecrementPosition(3)),void 0!==r&&n.isPositionInBounds(r)&&i.setCurrentPosition(r),(l||a)&&(this.#zr=e)}#jr(){this.#Hr&&(this.#Hr=!1)}mousedown=e=>{const t=Xn(e),n=oi(e);this.#Xr(t,n.groupDivId)};mousemove=e=>{const t=Xn(e),n=oi(e);this.#Yr(t,n.groupDivId)};mouseup=e=>{this.#jr()};mouseout=e=>{this.#jr(),this.#Jr()};touchstart=e=>{this.#Zr=setTimeout((()=>{this.dblclick(e)}),500);const t=Wn(e),n=oi(e);this.#Xr(t[0],n.groupDivId)};touchmove=e=>{null!==this.#Zr&&(clearTimeout(this.#Zr),this.#Zr=null);const t=Wn(e),n=oi(e);this.#Yr(t[0],n.groupDivId)};touchend=e=>{null!==this.#Zr&&(clearTimeout(this.#Zr),this.#Zr=null),this.#jr()};wheel=e=>{this.#Wr.wheel(e)};keydown=e=>{e.context="Scroll",this.#on.onKeydown(e)};dblclick=e=>{const t=oi(e);this.#on.getLayerGroupByDivId(t.groupDivId).getActiveViewLayer().getViewController().play()};#$r(e,t){const n=this.#on.getLayerGroupByDivId(t);this.#Kr=t,n.showTooltip(e)}#Jr(){void 0!==this.#Kr&&(this.#on.getLayerGroupByDivId(this.#Kr).removeTooltipDiv(),this.#Kr=void 0)}activate(e){e||this.#Jr()}setFeatures(e){void 0!==e.displayTooltip&&(this.#_r=e.displayTooltip)}init(){}},ZoomAndPan:class{#on;#Hr=!1;#zr;#eo;#to;#no;constructor(e){this.#on=e}#Xr(e){this.#Hr=!0,this.#zr=e,this.#eo=!1}#io=e=>{this.#Hr=!0,this.#zr=e[0],this.#eo=!1,this.#to=new Or(e[0],e[1]),this.#no=this.#to.getMidpoint()};#Yr(e,t){if(!this.#Hr)return;this.#eo=!0;const n=e.getX()-this.#zr.getX(),i=e.getY()-this.#zr.getY(),r=this.#on.getLayerGroupByDivId(t),o=r.getActiveViewLayer(),a=o.getViewController(),s=o.displayToPlaneScale(new F(n,i)),l=a.getOffset3DFromPlaneOffset({x:s.getX(),y:s.getY()});r.addTranslation({x:l.getX(),y:l.getY(),z:l.getZ()}),r.draw(),this.#zr=e}#ro=(e,t)=>{if(!this.#Hr)return;this.#eo=!0;const n=new Or(e[0],e[1]).getLength()/this.#to.getLength(),i=this.#on.getLayerGroupByDivId(t),r=i.getActiveViewLayer(),o=r.getViewController();if(1===n){const t=e[0].getY()-this.#zr.getY();if(Math.abs(t)<15)return;if(i.canScroll()){let e;e=t>0?o.getIncrementScrollPosition():o.getDecrementScrollPosition(),void 0!==e&&i.isPositionInBounds(e)&&o.setCurrentPosition(e)}}else{const e=(n-1)/10;if(Math.abs(e)%.1<=.05&&void 0!==this.#no){const t=r.displayToMainPlanePos(this.#no),n=o.getPlanePositionFromPlanePoint(t);i.addScale(e,n),i.draw()}}};#oo(e,t){const n=this.#on.getLayerGroupByDivId(t).getActiveViewLayer(),i=n.getViewController(),r=n.displayToPlanePos(e),o=i.getPositionFromPlanePoint(r);i.setCurrentPosition(o)}#jr(){this.#Hr&&(this.#Hr=!1)}mousedown=e=>{const t=Xn(e);this.#Xr(t)};mousemove=e=>{const t=Xn(e),n=oi(e);this.#Yr(t,n.groupDivId)};mouseup=e=>{if(!this.#eo){const t=Xn(e),n=oi(e);this.#oo(t,n.groupDivId)}this.#jr()};mouseout=e=>{this.#jr()};touchstart=e=>{const t=Wn(e);1===t.length?this.#Xr(t[0]):2===t.length&&this.#io(t)};touchmove=e=>{const t=Wn(e),n=oi(e);1===t.length?this.#Yr(t[0],n.groupDivId):2===t.length&&this.#ro(t,n.groupDivId)};touchend=e=>{if(!this.#eo){const t=Xn(e),n=oi(e);this.#oo(t,n.groupDivId)}this.#jr()};wheel=e=>{e.preventDefault();const t=-e.deltaY/500,n=oi(e),i=Xn(e),r=this.#on.getLayerGroupByDivId(n.groupDivId),o=r.getActiveViewLayer(),a=o.getViewController(),s=o.displayToMainPlanePos(i),l=a.getPlanePositionFromPlanePoint(s);r.addScale(t,l),r.draw()};keydown=e=>{e.context="ZoomAndPan",this.#on.onKeydown(e)};activate(e){}init(){}setFeatures(e){}},Opacity:class{#on;#Hr=!1;#zr;#Wr;constructor(e){this.#on=e,this.#Wr=new wr(e)}#Xr(e){this.#Hr=!0,this.#zr=e}#Yr(e,t){if(!this.#Hr)return;const n=e.getX()-this.#zr.getX();if(Math.abs(n)>15){const i=this.#on.getLayerGroupByDivId(t).getActiveViewLayer(),r=i.getOpacity();i.setOpacity(r+n/200),i.draw(),this.#zr=e}}#jr(){this.#Hr&&(this.#Hr=!1)}mousedown=e=>{const t=Xn(e);this.#Xr(t)};mousemove=e=>{const t=Xn(e),n=oi(e);this.#Yr(t,n.groupDivId)};mouseup=e=>{this.#jr()};mouseout=e=>{this.#jr()};touchstart=e=>{const t=Wn(e);this.#Xr(t[0])};touchmove=e=>{const t=Wn(e),n=oi(e);this.#Yr(t[0],n.groupDivId)};touchend=e=>{this.#jr()};wheel=e=>{this.#Wr.wheel(e)};keydown=e=>{e.context="Opacity",this.#on.onKeydown(e)};activate(e){}init(){}setFeatures(e){}},Draw:class{#on;#Wr;#ao;#Kn=[];#so=!1;#lo=null;#an=null;#co=null;#uo;#Ur=[];#do=null;#ho=!0;#On;#So=!0;#H={};#go=!1;constructor(e){this.#on=e,this.#Wr=new wr(e),this.#On=new ni(e),this.#ao=e.getStyle()}#mo(e,t){const n=this.#on.getLayerGroupByDivId(t);let i=n.getActiveDrawLayer();if(void 0===i){const e=n.getActiveViewLayer().getViewController(),r=new cr({});r.annotationGroup=new Gn,r.annotationGroup.setMeta("Modality","SR"),r.annotationGroup.setMeta("StudyInstanceUID",e.getStudyInstanceUID()),r.annotationGroup.setMeta("ReferencedSeriesSequence",{value:[{SeriesInstanceUID:e.getSeriesInstanceUID()}]});const o=this.#on.addData(r);this.#on.addDataViewConfig(o,new Zr(t)),this.#on.render(o),i=n.getActiveDrawLayer(),n.setActiveDrawLayerByDataId(o)}i.setShapeHandler(this.#On);const r=i.getKonvaStage(),o=r.getIntersection({x:e.getX(),y:e.getY()});this.#ao.setZoomScale(r.scale()),o?this.#po(i,o):this.#fo(n,e)}#fo(e,t){this.#On.disableAndResetEditor(),this.#Do();const n=e.getActiveViewLayer();this.#do=n.displayToPlanePos(t),this.#Ur.push(this.#do)}#Do(){this.#so=!0,this.#an=new this.#lo[this.#uo],this.#Ur=[]}#yo(){this.#so=!1,this.#Ur=[]}#po(e,t){const n=t.getParent().find(".shape")[0];n instanceof Fn().Shape&&this.#On.setEditorShape(n,e)}#Co(e,t){const n=this.#on.getLayerGroupByDivId(t),i=n.getActiveViewLayer().displayToPlanePos(e);(Math.abs(i.getX()-this.#do.getX())>0||Math.abs(i.getY()-this.#do.getY())>0)&&(this.#go&&this.#Ur.pop(),this.#do=i,this.#go=!0,this.#Ur.push(this.#do),this.#vo(this.#Ur,n))}#Io(e){if(0!==this.#Ur.length){if(this.#Ur.length===this.#an.getNPoints()){const t=this.#on.getLayerGroupByDivId(e);this.#To(this.#Ur,t),this.#yo()}this.#go=!1}else c.warn("Draw mouseup but no points...")}mousedown=e=>{if(this.#so)return;const t=Xn(e),n=oi(e);this.#mo(t,n.groupDivId)};mousemove=e=>{if(!this.#so)return;const t=Xn(e),n=oi(e);this.#Co(t,n.groupDivId)};mouseup=e=>{if(!this.#so)return;const t=oi(e);this.#Io(t.groupDivId)};dblclick=e=>{if(void 0!==this.#an.getNPoints())return;if(!this.#so)return;if(0===this.#Ur.length)return void c.warn("Draw dblclick but no points...");const t=oi(e),n=this.#on.getLayerGroupByDivId(t.groupDivId);this.#To(this.#Ur,n),this.#yo()};mouseout=e=>{if(!this.#so)return;const t=oi(e);this.#Io(t.groupDivId)};touchstart=e=>{if(this.#so)return;const t=Wn(e),n=oi(e);this.#mo(t[0],n.groupDivId)};touchmove=e=>{if(!this.#so)return;const t=oi(e),n=Wn(e),i=this.#on.getLayerGroupByDivId(t.groupDivId),r=i.getActiveViewLayer().displayToPlanePos(n[0]);(Math.abs(r.getX()-this.#do.getX())>0||Math.abs(r.getY()-this.#do.getY())>0)&&(1!==this.#Ur.length&&this.#Ur.pop(),this.#do=r,this.#Ur.push(this.#do),this.#Ur.length{this.#Ur.push(this.#do)}),this.#an.getTimeout())),this.#vo(this.#Ur,i))};touchend=e=>{this.dblclick(e)};wheel=e=>{this.#ho&&this.#Wr.wheel(e)};keydown=e=>{this.#so||(e.context="Draw",this.#on.onKeydown(e));const t=this.#On.getEditorAnnotation();if(("Delete"===e.key||"Backspace"===e.key)&&void 0!==t){const e=this.#on.getActiveLayerGroup().getActiveDrawLayer().getDrawController(),n=new _n(t,e);this.#on.addToUndoStack(n),n.execute(),this.#On.onMouseOutShapeGroup()}if("Escape"===e.key&&null!==this.#co){const e=this.#co.getLayer();this.#co.destroy(),this.#co=null,this.#yo(),e.draw()}};#vo(e,t){this.#co&&(this.#co.destroy(),this.#co=null);const n=t.getActiveDrawLayer().getKonvaLayer(),i=t.getActiveViewLayer(),r=i.getViewController();if(this.#So){const e=["#ffff80","#ff80ff","#80ffff","#80ff80","8080ff","ff8080"],t=i.getId(),n=t.substring(t.length-1),r=e[parseInt(n,10)/2];void 0!==r&&this.#ao.setLineColour(r)}const o=new Bn;o.colour=this.#ao.getLineColour(),o.setViewController(r),this.#an.setAnnotationMathShape(o,e),this.#co=this.#an.createShapeGroup(o,this.#ao),this.#co.getChildren(qn)[0].listening(!1),n.listening(!1),n.add(this.#co),n.draw()}#To(e,t){this.#co&&(this.#co.destroy(),this.#co=null);const n=t.getActiveDrawLayer(),i=n.getKonvaLayer(),r=n.getDrawController(),o=t.getActiveViewLayer().getViewController(),a=new Bn;a.colour=this.#ao.getLineColour(),a.id=at(),a.setViewController(o),this.#an.setAnnotationMathShape(a,e),r.hasAnnotationMeta("StudyInstanceUID")||r.setAnnotationMeta("StudyInstanceUID",o.getStudyInstanceUID());const s=new Zn(a,r);this.#on.addToUndoStack(s),s.execute(),i.listening(!0)}#Lo(e){const t=e.getDivId();return void 0===this.#Kn[t]&&(this.#Kn[t]=()=>{this.#Po(e)}),this.#Kn[t]}activate(e){this.#On.disableAndResetEditor();const t=this.#on.getActiveLayerGroup();if(void 0===t)throw new Error("No active layerGroup to activate draw on");if(this.#wo(e,t),e)this.#on.addEventListener("positionchange",this.#Lo(t));else{const e=t.getActiveDrawLayer();void 0!==e&&e.setShapeHandler(void 0),this.#On.onMouseOutShapeGroup(),this.#on.removeEventListener("positionchange",this.#Lo(t))}}#Po(e){this.#wo(!0,e)}#wo(e,t){const n=t.getActiveDrawLayer();if(void 0===n)return;const i=n.getDrawController(),r=n.getCurrentPosGroup().getChildren();e?r.forEach((e=>{if(e instanceof Fn().Group){const t=i.getAnnotation(e.id());this.#On.addShapeListeners(n,e,t)}})):r.forEach((e=>{e instanceof Fn().Group&&this.#On.removeShapeListeners(e)}));const o=n.getNonCurrentPosGroup();for(const e of o)e.getChildren().forEach((e=>{this.#On.removeShapeListeners(e)}));const a=n.getKonvaLayer();0!==r.length&&a.listening(!0),a.draw()}setOptions(e){this.#lo=e}getOptionsType(){return"factory"}setFeatures(e){if(void 0!==e.autoShapeColour&&(this.#So=e.autoShapeColour),void 0!==e.shapeColour&&(this.#ao.setLineColour(e.shapeColour),this.#So=!1),void 0!==e.shapeName){if(!this.hasShape(e.shapeName))throw new Error("Unknown shape: '"+e.shapeName+"'");this.#uo=e.shapeName}void 0!==e.mouseOverCursor&&this.#On.storeMouseOverCursor(e.mouseOverCursor),void 0!==e.withScroll&&(this.#ho=e.withScroll)}init(){}getEventNames(){return["drawcreate","drawchange","drawmove","drawdelete"]}addEventListener(e,t){void 0===this.#H[e]&&(this.#H[e]=[]),this.#H[e].push(t)}removeEventListener(e,t){if(void 0!==this.#H[e])for(let n=0;n{e.context="Filter",this.#on.onKeydown(e)};getEventNames(){return["filterrun","filterundo"]}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};getSelectedFilter(){return this.#Ao}setFeatures(e){if(void 0!==e.filterName){if(!this.hasFilter(e.filterName))throw new Error("Unknown filter: '"+e.filterName+"'");this.#Ao&&this.#Ao.activate(!1),this.#Ao=this.#Oo[e.filterName],this.#Ao.activate(!0)}if(void 0!==e.run&&e.run){let t={};void 0!==e.runArgs&&(t=e.runArgs),this.getSelectedFilter().run(t)}}getFilterList(){return this.#Oo}hasFilter(e){return this.#Oo[e]}},Floodfill:class{#on;constructor(e){this.#on=e}#bo=5;#xo=0;#Ro=2e3;#Fo=null;#Eo=null;#qo=10;#Uo=null;#Hr=!1;#Mo=null;#Qo=null;#Vo;#No=null;#Bo=[];#Go=!1;#ko;#ao=new xn;#Oe=new Ze;setExtend(e){this.#Go=e}getExtend(){return this.#Go}#Ho=(e,t)=>{const n=this.#on.getLayerGroupByDivId(t).getActiveViewLayer().displayToPlaneIndex(e);return{x:n.get(0),y:n.get(1)}};#zo(e,t,n){this.#Bo=[];const i={data:this.#Fo.data,width:this.#Fo.width,height:this.#Fo.height,bytes:4};this.#Eo=Er().floodFill(i,e.x,e.y,t),this.#Eo=Er().gaussBlurOnlyBorder(this.#Eo,this.#bo);let r=Er().traceContours(this.#Eo);if(r=Er().simplifyContours(r,this.#xo,this.#Ro),r.length>0&&r[0].points[0].x){if(n)return r[0].points;for(let e=0,t=r[0].points.length;eo&&this.#Wo(this.#Vo,a,n);t--)i.decrementIndex(2);i.setCurrentPosition(r)}modifyThreshold(e,t){if(t||!this.#Qo)throw"No shape found";t=this.#Qo.getChildren((function(e){return"shape"===e.name()}))[0],clearTimeout(this.#ko),this.#ko=setTimeout((()=>{if(this.#No=this.#zo(this.#Vo,e,!0),!this.#No)return!1;const n=[];for(let e=0,t=this.#No.length;e{const t=Xn(e),n=oi(e);this.#Xr(t,n.groupDivId)};mousemove=e=>{const t=Xn(e),n=oi(e);this.#Yr(t,n.groupDivId)};mouseup=e=>{this.#jr()};mouseout=e=>{this.#jr()};touchstart=e=>{const t=Wn(e),n=oi(e);this.#Xr(t[0],n.groupDivId)};touchmove=e=>{const t=Wn(e),n=oi(e);this.#Yr(t[0],n.groupDivId)};touchend=e=>{this.#jr()};keydown=e=>{e.context="Floodfill",this.#on.onKeydown(e)};activate(e){e&&(this.#ao.setBaseScale(this.#on.getBaseScale()),this.setFeatures({shapeColour:this.#ao.getLineColour()}))}init(){}getEventNames(){return["drawcreate","drawchange","drawmove","drawdelete"]}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};setFeatures(e){void 0!==e.shapeColour&&this.#ao.setLineColour(e.shapeColour)}},Livewire:class{#on;constructor(e){this.#on=e}#Hr=!1;#zr;#Mo=null;#Qo=null;#ao=new xn;#Xo=new qr;#Yo=new qr;#Bo=[];#jo=5;#Oe=new Ze;#Zo(e){const t=e.get(1);for(let e=0;e{const t=Xn(e),n=oi(e);this.#Xr(t,n.groupDivId)};mousemove=e=>{const t=Xn(e),n=oi(e);this.#Yr(t,n.groupDivId)};mouseup(e){}mouseout=e=>{};dblclick=e=>{this.#Jo()};touchstart=e=>{const t=Wn(e),n=oi(e);this.#Xr(t[0],n.groupDivId)};touchmove=e=>{const t=Wn(e),n=oi(e);this.#Yr(t[0],n.groupDivId)};touchend=e=>{};keydown=e=>{e.context="Livewire",this.#on.onKeydown(e)};activate(e){if(e){const e=this.#on.getActiveLayerGroup().getActiveViewLayer(),t=e.getViewController().getImageSize();this.#Ko.setDimensions(t.get(0),t.get(1)),this.#Ko.setData(e.getImageData().data),this.#ao.setBaseScale(this.#on.getBaseScale()),this.setFeatures({shapeColour:this.#ao.getLineColour()})}}init(){}getEventNames(){return["drawcreate","drawchange","drawmove","drawdelete"]}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};setFeatures(e){void 0!==e.shapeColour&&this.#ao.setLineColour(e.shapeColour)}}},jr={draw:{ArrowFactory:class{getGroupName(){return"line-group"}getNPoints(){return 2}getTimeout(){return 0}isFactoryGroup(e){return this.getGroupName()===e.name()}create(e,t,n){const i=new Or(e[0],e[1]),r=new(Fn().Line)({points:[i.getBegin().getX(),i.getBegin().getY(),i.getEnd().getX(),i.getEnd().getY()],stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape"}),o=t.applyZoomScale(10).x,a=br(i,e[0],o),s=br(i,e[1],o);r.hitFunc((function(e){e.beginPath(),e.moveTo(a.getBegin().getX(),a.getBegin().getY()),e.lineTo(a.getEnd().getX(),a.getEnd().getY()),e.lineTo(s.getEnd().getX(),s.getEnd().getY()),e.lineTo(s.getBegin().getX(),s.getBegin().getY()),e.closePath(),e.fillStrokeShape(r)}));const l=new F(i.getBegin().getX(),i.getBegin().getY()-10),c=new Or(i.getBegin(),l),u=Ar(i,c),d=u*Math.PI/180,h=Math.abs(t.applyZoomScale(8).x),S=new(Fn().RegularPolygon)({x:i.getBegin().getX()+h*Math.sin(d),y:i.getBegin().getY()+h*Math.cos(d),sides:3,radius:h,rotation:-u,fill:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape-triangle"}),g=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"});let m="";const p=n.getModality();m=void 0!==bn.labelText.arrow[p]?bn.labelText.arrow[p]:bn.labelText.arrow["*"],g.setText(m),g.meta={textExpr:m,quantification:{}};const f=i.getBegin().getX()>i.getEnd().getX()?0:-1,D=i.getBegin().getY()>i.getEnd().getY()?-1:0,y=new(Fn().Label)({x:i.getEnd().getX()+f*g.width(),y:i.getEnd().getY()+D*t.applyZoomScale(15).y,scale:t.applyZoomScale(1),visible:0!==m.length,name:"label"});y.add(g),y.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()}));const C=new(Fn().Group);return C.name(this.getGroupName()),C.add(y),C.add(S),C.add(r),C.visible(!0),C}getAnchors(e,t){const n=e.points(),i=[];return i.push(Qn(n[0]+e.x(),n[1]+e.y(),"begin",t)),i.push(Qn(n[2]+e.x(),n[3]+e.y(),"end",t)),i}update(e,t,n){const i=e.getParent(),r=i.getChildren((function(e){return"shape"===e.name()}))[0];if(!(r instanceof Fn().Line))return;const o=i.getChildren((function(e){return"shape-triangle"===e.name()}))[0];if(!(o instanceof Fn().RegularPolygon))return;const a=i.getChildren((function(e){return"label"===e.name()}))[0];if(!(a instanceof Fn().Label))return;const s=i.getChildren((function(e){return"begin"===e.id()}))[0],l=i.getChildren((function(e){return"end"===e.id()}))[0];switch(e.id()){case"begin":s.x(e.x()),s.y(e.y());break;case"end":l.x(e.x()),l.y(e.y())}const c=s.x()-r.x(),u=s.y()-r.y(),d=l.x()-r.x(),h=l.y()-r.y();r.points([c,u,d,h]);const S=new F(s.x(),s.y()),g=new F(l.x(),l.y()),m=new Or(S,g),p=new F(c,u),f=new F(d,h),D=t.applyZoomScale(10).x,y=br(m,p,D),C=br(m,f,D);r.hitFunc((function(e){e.beginPath(),e.moveTo(y.getBegin().getX(),y.getBegin().getY()),e.lineTo(y.getEnd().getX(),y.getEnd().getY()),e.lineTo(C.getEnd().getX(),C.getEnd().getY()),e.lineTo(C.getBegin().getX(),C.getBegin().getY()),e.closePath(),e.fillStrokeShape(r)}));const v=new F(m.getBegin().getX(),m.getBegin().getY()-10),I=new Or(m.getBegin(),v),T=Ar(m,I),L=T*Math.PI/180;o.x(m.getBegin().getX()+o.radius()*Math.sin(L)),o.y(m.getBegin().getY()+o.radius()*Math.cos(L)),o.rotation(-T);const P=a.getText();P.setText(P.meta.textExpr);const w=m.getBegin().getX()>m.getEnd().getX()?0:-1,O=m.getBegin().getY()>m.getEnd().getY()?-1:0,A={x:m.getEnd().getX()+w*P.width(),y:m.getEnd().getY()+O*t.applyZoomScale(15).y};a.position(A)}},CircleFactory:Nn,EllipseFactory:class{getGroupName(){return"ellipse-group"}getNPoints(){return 2}getTimeout(){return 0}isFactoryGroup(e){return this.getGroupName()===e.name()}create(e,t,n){const i=Math.abs(e[0].getX()-e[1].getX()),r=Math.abs(e[0].getY()-e[1].getY()),o=new Nr(e[0],i,r),a={x:o.getA(),y:o.getB()},s=new(Fn().Ellipse)({x:o.getCenter().getX(),y:o.getCenter().getY(),radius:a,radiusX:a.x,radiusY:a.y,stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape"}),l=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"});let c="";const u=n.getModality();c=void 0!==bn.labelText.ellipse[u]?bn.labelText.ellipse[u]:bn.labelText.ellipse["*"];const d=o.quantify(n,Q(c));l.setText(V(c,d)),l.meta={textExpr:c,quantification:d};const h=new(Fn().Label)({x:o.getCenter().getX()-o.getA(),y:o.getCenter().getY()+o.getB(),scale:t.applyZoomScale(1),visible:0!==c.length,name:"label"});h.add(l),h.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()}));const S=new(Fn().Group);return S.name(this.getGroupName()),S.add(h),S.add(s),S.visible(!0),S}getAnchors(e,t){const n=e.x(),i=e.y(),r=e.radius(),o=[];return o.push(Qn(n-r.x,i,"left",t)),o.push(Qn(n+r.x,i,"right",t)),o.push(Qn(n,i+r.y,"bottom",t)),o.push(Qn(n,i-r.y,"top",t)),o}update(e,t,n){const i=e.getParent();if(!(i instanceof Fn().Group))return;const r=i.getChildren((function(e){return"shape"===e.name()}))[0];if(!(r instanceof Fn().Ellipse))return;const o=i.getChildren((function(e){return"label"===e.name()}))[0],a=i.getChildren((function(e){return"left"===e.id()}))[0],s=i.getChildren((function(e){return"right"===e.id()}))[0],l=i.getChildren((function(e){return"bottom"===e.id()}))[0],u=i.getChildren((function(e){return"top"===e.id()}))[0];const d={x:r.x(),y:r.y()};let h,S;switch(e.id()){case"left":h=d.x-e.x(),S=u.y()-d.y,a.x(e.x()),a.y(s.y()),s.x(d.x+h);break;case"right":h=e.x()-d.x,S=u.y()-d.y,s.x(e.x()),s.y(a.y()),a.x(d.x-h);break;case"bottom":h=d.x-a.x(),S=e.y()-d.y,l.x(u.x()),l.y(e.y()),u.y(d.y-S);break;case"top":h=d.x-a.x(),S=d.y-e.y(),u.x(l.x()),u.y(e.y()),l.y(d.y+S);break;default:c.error("Unhandled anchor id: "+e.id())}r.position(d);const g={x:Math.abs(h),y:Math.abs(S)};g&&r.radius(g);const m=new F(i.x()+d.x,i.y()+d.y),p=(new Nr(m,g.x,g.y),{x:d.x-g.x,y:d.y+g.y});o.position(p),this.#$o(i,n)}updateQuantification(e,t){this.#$o(e,t)}#$o(e,t){const n=e.getChildren((function(e){return"shape"===e.name()}))[0];if(!(n instanceof Fn().Ellipse))return;const i=e.getChildren((function(e){return"label"===e.name()}))[0];if(!(i instanceof Fn().Label))return;const r=new F(e.x()+n.x(),e.y()+n.y()),o=new Nr(r,n.radius().x,n.radius().y),a=i.getText(),s=a.meta,l=o.quantify(t,Q(s.textExpr));a.setText(V(s.textExpr,l)),s.quantification=l}#ea(e,t){let n=0,i=0;void 0!==t&&(n=t.x(),i=t.y());const r=new(Fn().Group);r.name("shadow");const o=e.getRound();for(let e=0;e180&&(s=360-s,l+=s);const c=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"});let u="";const d=n.getModality();u=void 0!==bn.labelText.protractor[d]?bn.labelText.protractor[d]:bn.labelText.protractor["*"];const h={angle:{value:s,unit:On.t("unit.degree")}};c.setText(V(u,h)),c.meta={textExpr:u,quantification:h};const S=(i.getMidpoint().getX()+r.getMidpoint().getX())/2,g=(i.getMidpoint().getY()+r.getMidpoint().getY())/2,m=new(Fn().Label)({x:S,y:g-t.applyZoomScale(15).y,scale:t.applyZoomScale(1),visible:0!==u.length,name:"label"});m.add(c),m.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()}));const p=33*Math.min(i.getLength(),r.getLength())/100,f=new(Fn().Arc)({innerRadius:p,outerRadius:p,stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,angle:s,rotation:-l,x:e[1].getX(),y:e[1].getY(),name:"shape-arc"});a.add(m),a.add(f)}return a.add(o),a.visible(!0),a}getAnchors(e,t){const n=e.points(),i=[];return i.push(Qn(n[0]+e.x(),n[1]+e.y(),"begin",t)),i.push(Qn(n[2]+e.x(),n[3]+e.y(),"mid",t)),i.push(Qn(n[4]+e.x(),n[5]+e.y(),"end",t)),i}update(e,t,n){const i=e.getParent(),r=i.getChildren((function(e){return"shape"===e.name()}))[0];if(!(r instanceof Fn().Line))return;const o=i.getChildren((function(e){return"label"===e.name()}))[0];if(!(o instanceof Fn().Label))return;const a=i.getChildren((function(e){return"shape-arc"===e.name()}))[0];if(!(a instanceof Fn().Arc))return;const s=i.getChildren((function(e){return"begin"===e.id()}))[0],l=i.getChildren((function(e){return"mid"===e.id()}))[0],c=i.getChildren((function(e){return"end"===e.id()}))[0];switch(e.id()){case"begin":s.x(e.x()),s.y(e.y());break;case"mid":l.x(e.x()),l.y(e.y());break;case"end":c.x(e.x()),c.y(e.y())}const u=s.x()-r.x(),d=s.y()-r.y(),h=l.x()-r.x(),S=l.y()-r.y(),g=c.x()-r.x(),m=c.y()-r.y();r.points([u,d,h,S,g,m]),r.hitFunc((function(e){e.beginPath(),e.moveTo(u,d),e.lineTo(h,S),e.lineTo(g,m),e.closePath(),e.fillStrokeShape(r)}));const p=new F(s.x(),s.y()),f=new F(l.x(),l.y()),D=new F(c.x(),c.y()),y=new Or(p,f),C=new Or(f,D);let v=Ar(y,C),I=y.getInclination();v>180&&(v=360-v,I+=v);const T=o.getText(),L=T.meta,P={angle:{value:v,unit:On.t("unit.degree")}};T.setText(V(L.textExpr,P)),L.quantification=P;const 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Or(e[0],e[1]),r=new(Fn().Line)({points:[i.getBegin().getX(),i.getBegin().getY(),i.getEnd().getX(),i.getEnd().getY()],stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape"}),o=t.applyZoomScale(10).x,a=br(i,e[0],o),s=new(Fn().Line)({points:[a.getBegin().getX(),a.getBegin().getY(),a.getEnd().getX(),a.getEnd().getY()],stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape-tick0"}),l=br(i,e[1],o),c=new(Fn().Line)({points:[l.getBegin().getX(),l.getBegin().getY(),l.getEnd().getX(),l.getEnd().getY()],stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape-tick1"});r.hitFunc((function(e){e.beginPath(),e.moveTo(a.getBegin().getX(),a.getBegin().getY()),e.lineTo(a.getEnd().getX(),a.getEnd().getY()),e.lineTo(l.getEnd().getX(),l.getEnd().getY()),e.lineTo(l.getBegin().getX(),l.getBegin().getY()),e.closePath(),e.fillStrokeShape(r)}));const 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if("z"===e.key)this.#la.undo();else if(" "===e.key)for(let e=0;e{this.#Oe.fireEvent(e)};#ua=e=>{void 0!==this.#Zi.overlayConfig&&(this.#ca[e.dataid]=new Lr(this,e.dataid,this.#Zi.overlayConfig)),e.type="loadstart",this.#Re(e)};#da=e=>{e.type="loadprogress",this.#Re(e)};#ha=e=>{void 0===e.data&&c.error("Missing loaditem event data."),void 0===e.loadtype&&c.error("Missing loaditem event load type.");const t=e.isfirstitem;let n=null;"image"===e.loadtype?(t?this.#ra.add(e.dataid,e.data):this.#ra.update(e.dataid,e.data),n=e.data.meta):"state"===e.loadtype&&(this.applyJsonState(e.data),n="state"),this.#Re({type:"loaditem",data:n,source:e.source,loadtype:e.loadtype,dataid:e.dataid,isfirstitem:e.isfirstitem,warn:e.warn}),void 0!==this.#ca&&void 0!==this.#ca[e.dataid]&&this.#ca[e.dataid].addItemMeta(n),"image"===e.loadtype&&0!==this.getViewConfigs(e.dataid).length&&t&&this.#Zi.viewOnFirstLoadItem&&this.render(e.dataid)};#Sa=e=>{e.type="load",this.#Re(e)};#ga=e=>{e.type="loadend",this.#Re(e)};#ma=e=>{void 0===e.type&&(e.type="error"),this.#Re(e)};#pa=e=>{void 0===e.type&&(e.type="abort"),this.#Re(e)};#ya(e){e.addEventListener("zoomchange",this.#Re),e.addEventListener("offsetchange",this.#Re),e.addEventListener("renderstart",this.#Re),e.addEventListener("renderend",this.#Re);for(let t=0;t{const t=ri(e.srclayerid).groupDivId,n=this.getViewConfig(e.dataid,t,!0);void 0!==n&&(n.windowCenter=void 0,n.windowWidth=void 0,n.wlPresetName=void 0,2===e.value.length&&(n.windowCenter=e.value[0],n.windowWidth=e.value[1]),3===e.value.length&&(n.wlPresetName=e.value[2]))})),e.addEventListener("opacitychange",(e=>{const t=ri(e.srclayerid).groupDivId,n=this.getViewConfig(e.dataid,t,!0);void 0!==n&&(n.opacity=e.value[0])})),e.addEventListener("colourmapchange",(e=>{const t=ri(e.srclayerid).groupDivId,n=this.getViewConfig(e.dataid,t,!0);void 0!==n&&(n.colourMap=e.value[0])}))}#Ca(e,t){const n=this.#ra.get(e);if(!n)throw new Error("Cannot initialise layer with missing data, id: "+e);const i=this.#sa.getLayerGroupByDivId(t.divId);if(!i)throw new Error("Cannot initialise layer with missing group, id: "+t.divId);const r=n.image.getGeometry();this.#sa.unbindLayerGroups();const o=(new vn).create(n.meta,n.image),a=ai(r.getOrientation(),we(t.orientation));o.setOrientation(a),"SEG"===n.image.getMeta().Modality&&o.setAlphaFunction((function(e){return 0===e[0]&&0===e[1]&&0===e[2]?0:255}));const s=0===i.getNumberOfViewLayers();let l=1;void 0!==t.opacity?l=t.opacity:s||(l=.5);const c=i.addViewLayer();c.setView(o,e);const d=r.getSize(a).get2D(),h=r.getSpacing(a).get2D();c.initialise(d,h,l);const S=c.getViewController();if(void 0!==t.wlPresetName)S.setWindowLevelPreset(t.wlPresetName);else if(void 0!==t.windowCenter&&void 0!==t.windowWidth){const e=new u(t.windowCenter,t.windowWidth);S.setWindowLevel(e)}void 0!==t.colourMap?S.setColourMap(t.colourMap):s||("PT"===n.image.getMeta().Modality?S.setColourMap("hot"):S.setColourMap("rainbow")),this.#ra.addEventListener("dataimageset",c.onimageset);const g=[S.getCurrentIndex().getValues(),S.getCurrentPosition().getValues()];i.updateLayersToPositionChange({value:g,srclayerid:c.getId()}),this.#sa.fitToContainer(),c.setOffset(i.getOffset());const m=this.#va(r.getOrientation(),t.orientation);if(this.#Ia(m,c),s)c.setScale(i.getScale());else{const e=i.getBaseViewLayer();c.initScale(i.getScale(),e.getAbsoluteZoomOffset())}this.#sa.bindLayerGroups(),this.#oa&&this.#oa.bindLayerGroup(i,c),this.#Re({type:"viewlayeradd",layerid:c.getId(),layergroupid:i.getDivId(),dataid:e}),s&&this.#oa&&this.#oa.init()}addDrawLayer(e,t){const n=this.#sa.getLayerGroupByDivId(t.divId);if(!n)throw new Error("Cannot initialise layer with missing group, id: "+t.divId);const i=this.#ra.get(e);if(!i)throw new Error("Cannot initialise layer with missing data, id: "+e);const r=i.annotationGroup.getMeta("StudyInstanceUID"),o=n.searchViewLayers({StudyInstanceUID:r});if(0===o.length)return void console.warn("No loaded data that matches the measurement study UID");const a=o[0],s=a.getDataId(),l=a.getViewController();i.annotationGroup.setViewController(l);const c=this.#ra.get(s);if(!c)throw new Error("Cannot initialise layer with missing reference data, id: "+s);const u=c.image.getGeometry(),d=ai(u.getOrientation(),we(t.orientation)),h=u.getSize(d).get2D(),S=u.getSpacing(d).get2D(),g=n.addDrawLayer();g.initialise(h,S);const m=new Pn(u.getRealSpacing(),u.getOrientation(),d);g.setPlaneHelper(m),this.#sa.fitToContainer();const p=this.#va(u.getOrientation(),t.orientation);this.#Ia(p,g),g.setScale(n.getScale()),g.setAnnotationGroup(i.annotationGroup,e,this.addToUndoStack),g.setCurrentPosition(l.getCurrentPosition(),l.getCurrentIndex()),this.#Re({type:"drawlayeradd",layerid:g.getId(),layergroupid:n.getDivId(),dataid:e})}#va(e,t){const n=Oe(e.asOneAndZeros());if(void 0===n)throw new Error("Unsupported undefined orientation code");const i=void 0===t,r=!i&&t===Pe.Axial,o=!i&&t===Pe.Coronal,a=!i&&t===Pe.Sagittal,s={x:!1,y:!1},l={x:!1,y:!1,z:!1};return"LPS"===n?(o||a)&&(l.z=!0,s.y=!0):"LAI"===n?i||r?s.y=!0:o?l.z=!0:a&&(l.z=!0,s.x=!0):"RPI"===n?i||r?s.x=!0:o?(l.z=!0,s.x=!0):a&&(l.z=!0):"RAS"===n?(s.x=!0,s.y=!0,(o||a)&&(l.z=!0)):"LSA"===n?(s.y=!0,i||o?l.z=!0:r?l.y=!0:a&&(s.x=!0,l.y=!0,l.z=!0)):"RSP"===n?i||o?(s.x=!0,s.y=!0,l.x=!0,l.z=!0):r?(s.x=!0,l.x=!0):a&&(s.y=!0,l.z=!0):"RIA"===n?(s.x=!0,i||o?l.x=!0:r?(s.y=!0,l.x=!0,l.y=!0):a&&(l.y=!0)):"PSL"===n?(l.z=!0,(i||a||o)&&(s.y=!0)):"PIR"===n?(l.z=!0,(r||o)&&(s.x=!0)):"ASR"===n?(s.x=!0,s.y=!0,(i||a||o)&&(l.z=!0)):"AIL"===n?i||a?(s.x=!0,l.z=!0):r?s.y=!0:o&&(l.z=!0):c.warn("Unsupported orientation code: "+n+", display could be incorrect"),{scale:l,offset:s}}#Ia(e,t){e.offset.x&&t.addFlipOffsetX(),e.offset.y&&t.addFlipOffsetY(),e.scale.x&&t.flipScaleX(),e.scale.y&&t.flipScaleY(),e.scale.z&&t.flipScaleZ()}}class $r{#Eo;#Ta;constructor(e){this.#Eo=e;const t=e.getMeta();void 0===t.custom&&(t.custom={}),void 0===t.custom.segments&&(t.custom.segments=[]),this.#Ta=t.custom.segments}#La(e){return this.#Ta.findIndex((function(t){return t.number===e}))}hasSegment(e){return-1!==this.#La(e)}maskHasSegments(e){const t=[],n=[];for(let i=0;ie.number===this.#Pa.number))}execute(){0!==this.#wa.length&&(void 0!==this.#Pa.displayRGBValue?this.#Eo.setAtOffsets(this.#wa,C):this.#Eo.setAtOffsets(this.#wa,0)),new $r(this.#Eo).removeSegment(this.#Pa.number),this.#nn||this.onExecute({type:"masksegmentdelete",segmentnumber:this.#Pa.number})}undo(){0!==this.#wa.length&&(void 0!==this.#Pa.displayRGBValue?this.#Eo.setAtOffsets(this.#wa,this.#Pa.displayRGBValue):this.#Eo.setAtOffsets(this.#wa,this.#Pa.displayValue)),new $r(this.#Eo).addSegment(this.#Pa),this.onUndo({type:"masksegmentredraw",segmentnumber:this.#Pa.number})}onExecute(e){}onUndo(e){}}class to{#Eo;#Pa;#Oa;#Aa;#nn;#wa;constructor(e,t,n,i){this.#Eo=e,this.#Pa=t,this.#Oa=n,this.#nn=void 0!==i&&i,void 0!==t.displayRGBValue?this.#Aa=t.displayRGBValue:this.#Aa=t.displayValue,this.#wa=e.getOffsets(this.#Aa)}getName(){return"Change-segment-colour"}isValid(){return 0!==this.#wa.length}execute(){this.#Eo.setAtOffsets(this.#wa,this.#Oa),"number"==typeof this.#Oa?this.#Pa.displayValue=this.#Oa:this.#Pa.displayRGBValue=this.#Oa,this.#nn||this.onExecute({type:"changemasksegmentcolour",segmentnumber:this.#Pa.number,value:[this.#Oa]})}undo(){this.#Eo.setAtOffsets(this.#wa,this.#Aa),"number"==typeof this.#Aa?this.#Pa.displayValue=this.#Aa:this.#Pa.displayRGBValue=this.#Aa,this.onUndo({type:"changemasksegmentcolour",segmentnumber:this.#Pa.number,value:[this.#Aa]})}onExecute(e){}onUndo(e){}}class no{#ba=[];#xa;#Ra(e){return this.#ba.findIndex((function(t){return t.number===e}))}isHidden(e){return-1!==this.#Ra(e)}addToHidden(e){this.isHidden(e.number)?c.warn("Not hidding segment, it is allready in the hidden list: "+e.number):(this.#ba.push(e),this.#xa=void 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ct(f,a,s,m,y);let v;const I=e["00080018"];void 0!==I&&(v=I.value[0]);let T=1;const L=e["00280002"];void 0!==L&&(T=L.value[0]);const P=a.getTotalSize()*T;if(P!==t.length){if(c.warn("Badly sized pixel buffer: "+t.length+" != "+P),!(P>8};r=t.value.map(e),o=n.value.map(e),a=i.value.map(e)}}else if(8===s.value[2]){c.info("Scaling 16bits color lut since the lut descriptor is 8.");let e=t.value.slice(0);r=Array.from(new Uint8Array(e.buffer)),e=n.value.slice(0),o=Array.from(new Uint8Array(e.buffer)),e=i.value.slice(0),a=Array.from(new Uint8Array(e.buffer))}D.palette={red:r,green:o,blue:a}}const z=e["00082144"];return void 0!==z&&(q.RecommendedDisplayFrameRate=parseInt(z.value[0],10)),w.setMeta(q),w}}class Lt{#O=!0;#x;constructor(e,t){void 0!==t&&(this.#O=t),this.#x=new DataView(e)}writeUint8(e,t){return this.#x.setUint8(e,t),e+Uint8Array.BYTES_PER_ELEMENT}writeInt8(e,t){return this.#x.setInt8(e,t),e+Int8Array.BYTES_PER_ELEMENT}writeUint16(e,t){return this.#x.setUint16(e,t,this.#O),e+Uint16Array.BYTES_PER_ELEMENT}writeInt16(e,t){return this.#x.setInt16(e,t,this.#O),e+Int16Array.BYTES_PER_ELEMENT}writeUint32(e,t){return this.#x.setUint32(e,t,this.#O),e+Uint32Array.BYTES_PER_ELEMENT}writeUint64(e,t){return this.#x.setBigUint64(e,t,this.#O),e+BigUint64Array.BYTES_PER_ELEMENT}writeInt32(e,t){return this.#x.setInt32(e,t,this.#O),e+Int32Array.BYTES_PER_ELEMENT}writeInt64(e,t){return this.#x.setBigInt64(e,t,this.#O),e+BigInt64Array.BYTES_PER_ELEMENT}writeFloat32(e,t){return this.#x.setFloat32(e,t,this.#O),e+Float32Array.BYTES_PER_ELEMENT}writeFloat64(e,t){return this.#x.setFloat64(e,t,this.#O),e+Float64Array.BYTES_PER_ELEMENT}writeHex(e,t){const n=parseInt(t,16);return this.#x.setUint16(e,n,this.#O),e+Uint16Array.BYTES_PER_ELEMENT}writeBinaryArray(e,t){if(t.length%8!=0)throw new Error("Cannot write boolean array as binary.");let n=null,i=null;for(let r=0,o=t.length;r1){let t="";for(let n=0;npe(e.tag)));void 0!==s&&void 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0===e[Kt])throw new Error("Missing Segmented Property Type Code Sequence.");return t.propertyTypeCode=Gt(e[Kt].value[0]),void 0!==e[Jt]&&(t.trackingId=e[Jt].value[0],t.trackingUid=e["00620021"].value[0]),t}function tn(e){let t=e.algorithmType;void 0===t&&(t="MANUAL");const n={SegmentNumber:e.number,SegmentLabel:e.label,SegmentAlgorithmType:t};if("MANUAL"!==t&&void 0!==e.algorithmName&&(n.SegmentAlgorithmName=e.algorithmName),e.displayRGBValue){const t=I(L(e.displayRGBValue));n.RecommendedDisplayCIELabValue=[Math.round(t.l),Math.round(t.a),Math.round(t.b)]}else n.RecommendedDisplayGrayscaleValue=e.displayValue;return e.propertyCategoryCode&&(n.SegmentedPropertyCategoryCodeSequence={value:[kt(e.propertyCategoryCode)]}),e.propertyTypeCode&&(n.SegmentedPropertyTypeCodeSequence={value:[kt(e.propertyTypeCode)]}),e.trackingId&&(n.TrackingID=e.trackingId,n.TrackingUID=e.trackingUid),n}const nn="00089124",rn="00082112",on="00081150",an="00081155",sn="00209116",ln="00289110";class cn{dimIndex;imagePosPat;derivationImages;refSegmentNumber;imageOrientationPatient;spacing;constructor(e,t,n,i){this.dimIndex=e,this.imagePosPat=t,this.derivationImages=n,this.refSegmentNumber=i}}function un(e){const t=[];if(void 0!==e[nn]){const n=e[nn].value;for(let e=0;eO;return t&&(t=e>.001,t?(t=e>.01,t||c.warn("Using larger+ real world epsilon in SEG pos pat adding")):c.warn("Using larger real world epsilon in SEG pos pat adding")),t},F=[];F.push(C[0]);let q=0;for(let e=1;eo)throw new Error("Test distance is increasing when adding intermediate pos pats");F.push(C[e])}const U=F.length,M=new ct(A[0],i,h,L),Q=["0"];for(let e=1;e=0;--i){const a=Number.parseInt(o[i],10);g.push(h[r][a]);const s=e.getGeometry().getOrigins()[a],l=[s.getX(),s.getY(),s.getZ()],c={dimIndex:[t,o.length-i],imagePosPat:l,refSegmentNumber:t};if(void 0!==n){const e=n.getGeometry().worldToIndex(new q([s.getX(),s.getY(),s.getZ()]));c.derivationImages=[{sourceImages:[{referencedSOPInstanceUID:n.getImageUid(e),referencedSOPClassUID:n.getMeta().SOPClassUID}]}],p.push({ReferencedSOPInstanceUID:n.getImageUid(e),ReferencedSOPClassUID:n.getMeta().SOPClassUID})}S.push(c)}}r.NumberOfFrames=g.length.toString();const m=[];for(const e of S)m.push(dn(e));if(r.PerFrameFunctionalGroupsSequence={value:m},void 0!==n){const e=[];e.push({ReferencedInstanceSequence:{value:p},SeriesInstanceUID:n.getMeta().SeriesInstanceUID}),r.ReferencedSeriesSequence={value:e}}void 0!==i&&function(e,t){const n=Object.keys(t);for(const i of n)void 0!==e[i]&&c.trace("Overwritting tag: "+i),e[i]=t[i]}(r,i);const f=Vt(r),D=a.getDimSize(2),y=g.length*D/8,C=new ve("OB");return C.tag=new de("7FE0","0010"),C.vl=y,C.value=g,f["7FE00010"]=C,f}}function Dn(e){return(new Tt).create(e,e["7FE00010"].value[0],1)}function yn(e){return(new fn).create(e,e["7FE00010"].value[0])}class Cn{#pe;#w;#me;#t=new et(1,0);#fe=null;#De=!0;#ye=!0;#Ce="MONOCHROME2";#ve=0;#Ie;#Te={};#Le=null;#Pe=null;#we=null;#Oe=new Ze;constructor(e,t,n){this.#pe=e,this.#w=t,this.#me=n,this.#Ie=this.#w.length/this.#pe.getSize().getTotalSize()}getImageUid(e){let t=this.#me[0];return 1!==this.#me.length&&void 0!==e&&(t=this.#me[this.getSecondaryOffset(e)]),t}getOriginForImageUid(e){let t;const n=this.#me.indexOf(e);return-1!==n&&(t=this.getGeometry().getOrigins()[n]),t}containsImageUids(e){return function(e,t){if(null===e||null===t||void 0===e||void 0===t)return!1;if(0===e.length||0===t.length||t.length>e.length)return!1;for(const n of t)if(!e.includes(n))return!1;return!0}(this.#me,e)}getGeometry(){return this.#pe}getBuffer(){return this.#w}canQuantify(){return 1===this.getNumberOfComponents()}canWindowLevel(){return this.isMonochrome()}isMonochrome(){return null!==this.getPhotometricInterpretation().match(/MONOCHROME/)}canScroll(e){const t=this.getGeometry().getSize();let n=1;return void 0!==this.#Te.numberOfFiles&&(n=this.#Te.numberOfFiles),t.canScroll(e)||1!==n}#Ae(){return this.#pe.getSize().getTotalSize(2)}getSecondaryOffset(e){return this.#pe.getSize().indexToOffset(e,2)}getRescaleSlopeAndIntercept(e){let t=this.#t;if(!this.isConstantRSI()){if(void 0===e)throw new Error("Cannot get non constant RSI with empty slice index.");const n=this.getSecondaryOffset(e);void 0!==this.#fe[n]?t=this.#fe[n]:c.warn("undefined non constant rsi at "+n)}return t}#be(e){return this.#fe[e]}setRescaleSlopeAndIntercept(e,t){if(this.#De=this.#De&&e.isID(),this.#ye){if(!this.#t.equals(e))if(void 0===t)this.#t=e;else{this.#ye=!1,this.#fe=[];for(let e=0,t=this.#Ae();e=this.#Te.numberOfFiles?c.warn("Ignoring frame at index "+t+" (size: "+this.#Te.numberOfFiles+")"):(this.#w.set(e,i*t),this.appendFrame(t,new E(0,0,0)))}appendFrame(e,t){this.#pe.appendFrame(t,e),this.#Re({type:"appendframe"})}getDataRange(){return this.#Le||(this.#Le=this.calculateDataRange()),this.#Le}getRescaledDataRange(){return this.#Pe||(this.#Pe=this.calculateRescaledDataRange()),this.#Pe}getHistogram(){if(!this.#we){const e=this.calculateHistogram();this.#Le=e.dataRange,this.#Pe=e.rescaledDataRange,this.#we=e.histogram}return this.#we}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};setAtOffsets(e,t){let n,i;if("number"==typeof t){if(1!==this.#Ie)throw new Error("Number of components is not 1 for setting single value.");n=[t]}else if(void 0!==t.r&&void 0!==t.g&&void 0!==t.b){if(3!==this.#Ie)throw new Error("Number of components is not 3 for setting RGB value.");n=[t.r,t.g,t.b]}for(let t=0,r=e.length;t=3&&(r=i.getDimSize(3));for(let i=0;it&&(t=n),nn?t:n}}{let e=this.getRescaledValueAtOffset(0),t=e,n=0;const i=this.getGeometry().getSize();let r=i.getTotalSize();3===i.length()&&(r=i.getDimSize(3));for(let i=0;it&&(t=n),ni&&(i=r),ra&&(a=s),s{const e=this.getCurrentIndex();if(3===e.length()){const t=e.getValues();t.push(0),this.setCurrentIndex(new s(t))}}))}getImage(){return this.#Fe}setImage(e){this.#Fe=e}getOrientation(){return this.#_}setOrientation(e){this.#_=e}init(){this.setInitialIndex()}setInitialIndex(){const e=this.#Fe.getGeometry().getSize(),t=new Array(e.length());t.fill(0),t[0]=Math.floor(e.get(0)/2),t[1]=Math.floor(e.get(1)/2),t[2]=Math.floor(e.get(2)/2),this.setCurrentIndex(new s(t),!0)}getPlaybackMilliseconds(e){return e||(e=10),Math.round(1e3/e)}#Ne=function(e,t){return 255};getAlphaFunction(){return this.#Ne}setAlphaFunction(e){this.#Ne=e,this.#Re({type:"alphafuncchange"})}#Be(){if(this.#Ue&&void 0!==this.#qe[this.#Ue]&&void 0!==this.#qe[this.#Ue].perslice&&!0===this.#qe[this.#Ue].perslice){this.getCurrentIndex()||this.setInitialIndex();const e=this.getCurrentIndex(),t=this.#Fe.getSecondaryOffset(e),n=this.#qe[this.#Ue].wl[t];this.setWindowLevel(n,this.#Ue,!0)}if(void 0===this.#Me&&this.setWindowLevelPresetById(0,!0),void 0===this.#ye||this.#Fe.isConstantRSI()!==this.#ye){let e,t;this.#ye=this.#Fe.isConstantRSI(),this.#ye?(e=this.#Fe.getRescaleSlopeAndIntercept(),t=!0):(e=new et(1,0),t=!1);const n=new l(e,this.#Fe.getMeta().BitsStored);this.#Ee=new S(n,this.#Fe.getMeta().IsSigned,t)}const e=this.#Ee.getVoiLut();let t;if(void 0!==e&&(t=e.getWindowLevel()),void 0===e||!this.#Me.equals(t)){const e=new h(this.#Me);this.#Ee.setVoiLut(e)}return this.#Ee}getWindowPresets(){return this.#qe}getWindowPresetsNames(){return Object.keys(this.#qe)}setWindowPresets(e){this.#qe=e}addWindowPresets(e){const t=Object.keys(e);let n=null;for(let i=0;i{this.#Oe.fireEvent(e)};getWindowLevelMinMax(){const e=this.getImage().getRescaledDataRange(),t=e.min;let n=e.max-t;return n<1&&(c.warn("Zero or negative window width, defaulting to one."),n=1),new u(t+n/2,n)}setWindowLevelMinMax(){const e=this.getWindowLevelMinMax();this.setWindowLevel(e,"minmax")}generateImageData(e,t){void 0===t&&(this.getCurrentIndex()||this.setInitialIndex(),t=this.getCurrentIndex());const n=this.getImage(),i=!n.isConstantRSI(),r=Je(n,t,i,this.getOrientation()),o=n.getPhotometricInterpretation();switch(o){case"MONOCHROME1":case"MONOCHROME2":!function(e,t,n,i,r){let o=0,a=0,s=t.next();for(;!s.done;)a=i.getValue(s.value),e.data[o]=r.red[a],e.data[o+1]=r.green[a],e.data[o+2]=r.blue[a],e.data[o+3]=n(s.value,s.index),o+=4,s=t.next()}(e,r,this.getAlphaFunction(),this.#Be(),this.#Ge());break;case"PALETTE COLOR":!function(e,t,n,i,r){const o=function(e){return e>>8};r&&c.info("Scaling 16bits data to 8bits.");let a=0,s=0,l=t.next();for(;!l.done;)s=l.value,r?(e.data[a]=o(i.red[s]),e.data[a+1]=o(i.green[s]),e.data[a+2]=o(i.blue[s])):(e.data[a]=i.red[s],e.data[a+1]=i.green[s],e.data[a+2]=i.blue[s]),e.data[a+3]=n(s,l.index),a+=4,l=t.next()}(e,r,this.getAlphaFunction(),this.#Ge(),16===n.getMeta().BitsStored);break;case"RGB":!function(e,t,n){let i=0,r=t.next();for(;!r.done;)e.data[i]=r.value[0],e.data[i+1]=r.value[1],e.data[i+2]=r.value[2],e.data[i+3]=n(r.value,r.index),i+=4,r=t.next()}(e,r,this.getAlphaFunction());break;case"YBR_FULL":!function(e,t,n){let i=0,r=null,o=t.next();for(;!o.done;)a=o.value[0],s=o.value[1],r={r:a+1.402*((l=o.value[2])-128),g:a-.34414*(s-128)-.71414*(l-128),b:a+1.772*(s-128)},e.data[i]=r.r,e.data[i+1]=r.g,e.data[i+2]=r.b,e.data[i+3]=n(o.value,o.index),i+=4,o=t.next();var a,s,l}(e,r,this.getAlphaFunction());break;default:throw new Error("Unsupported photometric interpretation: "+o)}}getScrollIndex(){let e=null;const t=this.getOrientation();return e=void 0!==t?t.getThirdColMajorDirection():2,e}}class Pn{#X;#ke;#He;#ze;constructor(e,t,n){this.#X=e,this.#ke=t,this.#He=n,this.#ze=function(e,t){let n=e.asOneAndZeros().multiply(t);return e.asOneAndZeros().getAbs().equals(Le().getAbs())&&(n=n.getAbs()),n}(t,n)}getOffset3DFromPlaneOffset(e){const t=new w(e.x,e.y,0),n=this.getTargetDeOrientedVector3D(t);return new w(n.getX()*this.#X.get(0),n.getY()*this.#X.get(1),n.getZ()*this.#X.get(2))}getPlaneOffsetFromOffset3D(e){const t=new w(e.x/this.#X.get(0),e.y/this.#X.get(1),e.z/this.#X.get(2)),n=this.getTargetOrientedVector3D(t);return{x:n.getX(),y:n.getY()}}getTargetOrientedVector3D(e){let t=e;return void 0!==this.#ze&&(t=this.#ze.getInverse().multiplyVector3D(e)),t}getTargetDeOrientedVector3D(e){let t=e;return void 0!==this.#ze&&(t=this.#ze.multiplyVector3D(e)),t}getTargetDeOrientedPoint3D(e){let t=e;return void 0!==this.#ze&&(t=this.#ze.multiplyPoint3D(e)),t}getImageOrientedVector3D(e){let t=e;if(void 0!==this.#He){const n=dt([e.getX(),e.getY(),e.getZ()],this.#He);t=new w(n[0],n[1],n[2])}return t}getImageOrientedPoint3D(e){let t=e;if(void 0!==this.#He){const n=dt([e.getX(),e.getY(),e.getZ()],this.#He);t=new E(n[0],n[1],n[2])}return t}getImageDeOrientedVector3D(e){let t=e;if(void 0!==this.#He){const n=ut([e.getX(),e.getY(),e.getZ()],this.#He);t=new w(n[0],n[1],n[2])}return t}getImageDeOrientedPoint3D(e){let t=e;if(void 0!==this.#He){const n=ut([e.getX(),e.getY(),e.getZ()],this.#He);t=new E(n[0],n[1],n[2])}return t}getTargetOrientedPositiveXYZ(e){const t=ut([e.x,e.y,e.z],this.#ze);return{x:t[0],y:t[1],z:t[2]}}getScrollIndex(){let e=null;return e=void 0!==this.#He?this.#He.getThirdColMajorDirection():2,e}getNativeScrollIndex(){let e=null;return e=void 0!==this.#ke?this.#ke.getThirdColMajorDirection():2,e}}class wn{#x;#We;#Ye;#Xe=!1;constructor(e){if(void 0===e.getImage())throw new Error("View does not have an image, cannot setup controller");this.#x=e,this.#We=new Pn(e.getImage().getGeometry().getRealSpacing(),e.getImage().getGeometry().getOrientation(),e.getOrientation()),"SEG"===e.getImage().getMeta().Modality&&(this.#Xe=!0)}getPlaneHelper(){return this.#We}isMask(){return this.#Xe}initialise(){this.setWindowLevelPresetById(0),this.setCurrentPosition(this.getPositionFromPlanePoint(new F(0,0)))}getModality(){return this.#x.getImage().getMeta().Modality}getWindowLevelPresetsNames(){return this.#x.getWindowPresetsNames()}addWindowLevelPresets(e){return this.#x.addWindowPresets(e)}setWindowLevelPreset(e){this.#x.setWindowLevelPreset(e)}setWindowLevelPresetById(e){this.#x.setWindowLevelPresetById(e)}isPlaying(){return void 0!==this.#Ye}getCurrentPosition(){return this.#x.getCurrentPosition()}getCurrentIndex(){return this.#x.getCurrentIndex()}getCurrentImageUid(){return this.#x.getCurrentImageUid()}getOriginIndexForImageUid(e){return this.#x.getOriginIndexForImageUid(e)}getCurrentOrientedIndex(){let e=this.#x.getCurrentIndex();if(void 0!==this.#x.getOrientation()){const t=this.#We.getImageDeOrientedVector3D(new w(e.get(0),e.get(1),e.get(2)));e=new s([t.getX(),t.getY(),t.getZ()])}return e}getScrollIndex(){return this.#x.getScrollIndex()}getCurrentScrollIndexValue(){return this.#x.getCurrentIndex().get(this.#x.getScrollIndex())}getOrigin(e){return this.#x.getOrigin(e)}getCurrentScrollPosition(){const e=this.#x.getScrollIndex();return this.#x.getCurrentPosition().get(e)}generateImageData(e,t){this.#x.generateImageData(e,t)}setImage(e){this.#x.setImage(e)}get2DSpacing(){return this.#x.getImage().getGeometry().getSpacing(this.#x.getOrientation()).get2D()}getRescaledImageValue(e){const t=this.#x.getImage();if(!t.canQuantify())return;const n=t.getGeometry(),i=n.worldToIndex(e);let r;return n.isIndexInBounds(i)&&(r=t.getRescaledValueAtIndex(i)),r}getPixelUnit(){return this.#x.getImage().getMeta().pixelUnit}#je(e,t,n,i){const r=Ke(Je(e,t,n,i)),o=e.getGeometry().getSize(i).getValues();o[2]=1;const a=new tt(o),s=e.getGeometry().getSpacing(i).getValues();s[2]=1;const l=new lt(s),c=new E(0,0,0),u=new ct(c,a,l);return new Cn(u,r)}getImageRegionValues(e,t){let n=this.#x.getImage();const i=this.#x.getOrientation();let r=this.getCurrentIndex(),o=!0;R(i)||(n=this.#je(n,r,o,i),r=new s([0,0,0]),o=!1);const a=function(e,t,n,i,r){if(1!==e.getNumberOfComponents())throw new Error("Unsupported number of components for region iterator: "+e.getNumberOfComponents());void 0===n&&(n=!1);let o=null;o=n?function(t){return e.getRescaledValueAtOffset(t)}:function(t){return e.getValueAtOffset(t)};const a=e.getGeometry().getSize();void 0===i&&(i=new F(0,0)),void 0===r&&(r=new F(a.get(0)-1,a.get(1)));const s=a.indexToOffset(t.getWithNew2D(i.getX(),i.getY())),l=a.indexToOffset(t.getWithNew2D(r.getX(),r.getY()-1)),c=Math.max(1,r.getX()-i.getX());return function(e,t,n,i,r,o){let a=t,s=0;return{next:function(){if(a{let e=!1;if(e=i?this.incrementScrollIndex():this.incrementIndex(3),!e){const e=this.getCurrentIndex().getValues(),t=this.#x.getOrientation();i?e[t.getThirdColMajorDirection()]=0:e[3]=0;const n=new s(e),r=this.#x.getImage().getGeometry();this.setCurrentPosition(r.indexToWorld(n))}}),n)}else this.stop()}stop(){void 0!==this.#Ye&&(clearInterval(this.#Ye),this.#Ye=void 0)}getWindowLevel(){return this.#x.getWindowLevel()}getCurrentWindowPresetName(){return this.#x.getCurrentWindowPresetName()}setWindowLevel(e){this.#x.setWindowLevel(e)}getColourMap(){return this.#x.getColourMap()}setColourMap(e){this.#x.setColourMap(e)}setViewAlphaFunction(e){this.#x.setAlphaFunction(e)}bindImageAndLayer(e){const t=this.#x.getImage();t.addEventListener("imagecontentchange",e.onimagecontentchange),t.addEventListener("imagegeometrychange",e.onimagegeometrychange)}unbindImageAndLayer(e){const t=this.#x.getImage();t.removeEventListener("imagecontentchange",e.onimagecontentchange),t.removeEventListener("imagegeometrychange",e.onimagegeometrychange)}}const On={t(e){const t=e.split(".");if(2!==t.length)throw new Error("Unexpected translation key length.");if("unit"!==t[0])throw new Error("Unexpected translation key prefix.");return{mm:"mm",cm2:"cm²",degree:"°"}[t[1]]}};class An{#$e;#et;constructor(e,t){this.#$e=e,this.#et=t}getCenter(){return this.#$e}getRadius(){return this.#et}equals(e){return null!==e&&this.getCenter().equals(e.getCenter())&&this.getRadius()===e.getRadius()}getSurface(){return Math.PI*this.getRadius()*this.getRadius()}getWorldSurface(e){return function(e,t,n){let i=null;return null!==t&&null!==n&&(i=e*t*n),i}(this.getSurface(),e.x,e.y)}getRound(){const e=this.getCenter().getX(),t=this.getCenter().getY(),n=this.getRadius(),i=Math.pow(n,2),r=t+n,o=[];for(let a=t-n;an.getX()&&(e.x(n.getX()),i=!0),e.y()n.getY()&&(e.y(n.getY()),i=!0),i}class Nn{getGroupName(){return"circle-group"}getNPoints(){return 2}getTimeout(){return 0}isFactoryGroup(e){return this.getGroupName()===e.name()}setAnnotationMathShape(e,t){e.mathShape=this.#dt(t),e.setTextExpr(this.#ht()),e.updateQuantification()}createShapeGroup(e,t){const n=new(Fn().Group);return n.name(this.getGroupName()),n.visible(!0),n.id(e.id),n.add(this.#St(e,t)),n.add(this.#gt(e,t)),n}getAnchors(e,t){const n=e.x(),i=e.y(),r=e.radius(),o=[];return o.push(Qn(n-r,i,"left",t)),o.push(Qn(n+r,i,"right",t)),o.push(Qn(n,i+r,"bottom",t)),o.push(Qn(n,i-r,"top",t)),o}constrainAnchorMove(e){const t=e.getParent();if(!(t instanceof Fn().Group))return;const n=t.getChildren((function(e){return"left"===e.id()}))[0],i=t.getChildren((function(e){return"right"===e.id()}))[0],r=t.getChildren((function(e){return"bottom"===e.id()}))[0],o=t.getChildren((function(e){return"top"===e.id()}))[0];switch(e.id()){case"left":n.y(i.y());break;case"right":i.y(n.y());break;case"bottom":r.x(o.x());break;case"top":o.x(r.x());break;default:c.error("Unhandled anchor id: "+e.id())}}updateShapeGroupOnAnchorMove(e,t,n){const i=t.getParent();i instanceof Fn().Group&&(this.#pt(e,t,n),this.updateLabelContent(e,i,n),this.updateLabelPosition(e,i,n))}updateAnnotationOnAnchorMove(e,t){const n=e.mathShape,i=new F(n.getCenter().getX(),n.getCenter().getY()),r=new F(t.x(),t.y()),o=i.getDistance(r);e.mathShape=new An(i,o),e.updateQuantification()}updateAnnotationOnTranslation(e,t){const n=e.mathShape,i=n.getCenter(),r=new F(i.getX()+t.x,i.getY()+t.y);e.mathShape=new An(r,n.getRadius());const o=e.labelPosition;if(void 0!==o){const n=new F(o.getX()+t.x,o.getY()+t.y);e.labelPosition=n}e.updateQuantification()}updateLabelPosition(e,t,n){const i=t.getChildren((function(e){return"label"===e.name()}))[0];if(!(i instanceof Fn().Label))return;const r=this.#mt(e);i.position({x:r.getX(),y:r.getY()})}updateLabelContent(e,t,n){const i=t.getChildren((function(e){return"label"===e.name()}))[0];if(!(i instanceof Fn().Label))return;const r=e.getText();i.getText().setText(r),i.visible(0!==r.length)}#dt(e){const t=Math.abs(e[0].getX()-e[1].getX()),n=Math.abs(e[0].getY()-e[1].getY()),i=Math.round(Math.sqrt(t*t+n*n));return new An(e[0],i)}#ht(){return bn.labelText.circle}#St(e,t){const n=e.mathShape;return new(Fn().Circle)({x:n.getCenter().getX(),y:n.getCenter().getY(),radius:n.getRadius(),stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape"})}#ft(e){const t=e.mathShape,n=t.getCenter(),i=t.getRadius();return new F(n.getX()-i,n.getY()+i)}#mt(e){let t=e.labelPosition;return void 0===t&&(t=this.#ft(e)),t}#gt(e,t){const n=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"}),i=e.getText();n.setText(i);const r=this.#mt(e),o=new(Fn().Label)({x:r.getX(),y:r.getY(),scale:t.applyZoomScale(1),visible:0!==i.length,name:"label"});return o.add(n),o.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()})),o}#pt(e,t,n){const i=e.mathShape,r=i.getCenter(),o=i.getRadius(),a=t.getParent();if(!(a instanceof Fn().Group))return;const s=a.getChildren((function(e){return"shape"===e.name()}))[0];if(!(s instanceof Fn().Circle))return;s.radius(o);const l=a.getChildren((function(e){return"left"===e.id()}))[0],u=a.getChildren((function(e){return"right"===e.id()}))[0],d=a.getChildren((function(e){return"bottom"===e.id()}))[0],h=a.getChildren((function(e){return"top"===e.id()}))[0],S=u.x()t.id===e.id));-1!==t?(this.#wt[t]=e,this.#Re({type:"annotationupdate",data:e})):console.log("Cannot find annotation to update")}remove(e){const t=this.#wt.findIndex((t=>t.id===e));if(-1!==t){const e=this.#wt.splice(t,1)[0];this.#Re({type:"annotationremove",data:e})}else console.log("Cannot find annotation to remove")}setViewController(e){for(const t of this.#wt)t.setViewController(e),t.updateQuantification()}find(e){return this.#wt.find((t=>t.id===e))}getMeta(){return this.#Te}hasMeta(e){return void 0!==this.#Te[e]}getMetaValue(e){return this.#Te[e]}setMetaValue(e,t){this.#Te[e]=t}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}}const Kn=["mousedown","mousemove","mouseup","mouseout","wheel","dblclick","touchstart","touchmove","touchend"],Jn={openRoiDialog(e,t){const n=prompt("Label",e.textExpr);null!==n&&(e.textExpr=n,t(e))}};function $n(e){let t=0,n=0;if(0!==e.length&&void 0!==e[0].target){let i=e[0].target.offsetParent;for(;i;)isNaN(i.offsetLeft)||(t+=i.offsetLeft),isNaN(i.offsetTop)||(n+=i.offsetTop),i=i.offsetParent}else c.debug("No touch target offset parent.");const i=[];for(let r=0;r{this.#Wt===e.dataid&&(this.#Pt.setImage(e.value[0]),this.#$t(this.#Pt.getImageSize().get2D()),this.#zt=!0)};bindImage(){this.#Pt&&this.#Pt.bindImageAndLayer(this)}unbindImage(){this.#Pt&&this.#Pt.unbindImageAndLayer(this)}onimagecontentchange=e=>{this.#Wt===e.dataid&&(this.#Rt=this.#Pt.isPositionInBounds(),this.#zt=!0,this.draw())};onimagegeometrychange=e=>{if(this.#Wt===e.dataid){const e=this.#Pt.getImageSize().get2D();if(this.#Et.x!==e.x||this.#Et.y!==e.y){if(void 0!==this.#Xt&&void 0!==this.#jt){const e=this.#Pt.getOrigin(),t=this.#jt.minus(e),n=this.#Pt.getOrigin(this.#Pt.getCurrentPosition()),i=this.#Xt.minus(n);this.setBaseOffset(t,i)}this.#$t(e),this.#zt=!0,this.draw()}}};getId(){return this.#Ot.id}removeFromDOM(){this.#Ot.remove()}getBaseSize(){return this.#Et}getImageWorldSize(){return this.#Pt.getImageWorldSize()}getOpacity(){return this.#Ut}setOpacity(e){if(e===this.#Ut)return;this.#Ut=Math.min(Math.max(e,0),1);const t={type:"opacitychange",value:[this.#Ut]};this.#Re(t)}addFlipOffsetX(){this.#Ht.x+=this.#At.width/this.#Mt.x,this.#Nt.x+=this.#Ht.x}addFlipOffsetY(){this.#Ht.y+=this.#At.height/this.#Mt.y,this.#Nt.y+=this.#Ht.y}flipScaleX(){this.#Vt.x*=-1}flipScaleY(){this.#Vt.y*=-1}flipScaleZ(){this.#Vt.z*=-1}setScale(e,t){const n=this.#Pt.getPlaneHelper(),i=n.getTargetOrientedPositiveXYZ({x:e.x*this.#Vt.x,y:e.y*this.#Vt.y,z:e.z*this.#Vt.z}),r={x:this.#Qt.x*i.x,y:this.#Qt.y*i.y};if(1===Math.abs(e.x)&&1===Math.abs(e.y)&&1===Math.abs(e.z)){const e={x:this.#Nt.x-this.#kt.x,y:this.#Nt.y-this.#kt.y};this.#kt={x:0,y:0},this.#Nt=e}else if(void 0!==t){let e=n.getPlaneOffsetFromOffset3D({x:t.getX(),y:t.getY(),z:t.getZ()});e={x:e.x+this.#Bt.x,y:e.y+this.#Bt.y};const i=mi(this.#Nt,this.#Mt,r,e),o={x:this.#kt.x+i.x-this.#Nt.x,y:this.#kt.y+i.y-this.#Nt.y};this.#kt=o,this.#Nt=i}this.#Mt=r}initScale(e,t){const n=this.#Pt.getPlaneHelper().getTargetOrientedPositiveXYZ({x:e.x*this.#Vt.x,y:e.y*this.#Vt.y,z:e.z*this.#Vt.z}),i={x:this.#Qt.x*n.x,y:this.#Qt.y*n.y};this.#Mt=i,this.#kt={x:t.x/this.#Qt.x,y:t.y/this.#Qt.y},this.#Nt={x:this.#Nt.x+this.#kt.x,y:this.#Nt.y+this.#kt.y}}setBaseOffset(e,t,n,i){const r=this.#Pt.getPlaneHelper(),o=r.getNativeScrollIndex(),a=r.getPlaneOffsetFromOffset3D({x:0===o?e.getX():t.getX(),y:1===o?e.getY():t.getY(),z:2===o?e.getZ():t.getZ()}),s=this.#Bt.x!==a.x||this.#Bt.y!==a.y;return void 0!==n&&void 0!==i&&(this.#Xt=n,this.#jt=i),s&&(this.#Nt={x:this.#Nt.x-this.#Bt.x+a.x,y:this.#Nt.y-this.#Bt.y+a.y},this.#Bt=a),s}setOffset(e){const t=this.#Pt.getPlaneHelper().getPlaneOffsetFromOffset3D(e);this.#Nt={x:t.x+this.#Gt.x+this.#Bt.x+this.#kt.x+this.#Ht.x,y:t.y+this.#Gt.y+this.#Bt.y+this.#kt.y+this.#Ht.y}}displayToPlaneIndex(e){const t=this.displayToPlanePos(e);return new s([Math.floor(t.getX()),Math.floor(t.getY())])}displayToPlaneScale(e){return new F(e.getX()/this.#Mt.x,e.getY()/this.#Mt.y)}displayToPlanePos(e){const t=this.displayToPlaneScale(e);return new F(t.getX()+this.#Nt.x,t.getY()+this.#Nt.y)}planePosToDisplay(e){let t=(e.getX()-this.#Nt.x+this.#Bt.x)*this.#Mt.x,n=(e.getY()-this.#Nt.y+this.#Bt.y)*this.#Mt.y;return(t<0||t>=this.#At.width)&&(t=void 0),(n<0||n>=this.#At.height)&&(n=void 0),new F(t,n)}displayToMainPlanePos(e){const t=this.displayToPlanePos(e);return new F(t.getX()-this.#Bt.x,t.getY()-this.#Bt.y)}display(e){this.#Ot.style.display=e?"":"none"}isVisible(){return""===this.#Ot.style.display}draw(){if(!this.#Rt)return;let e={type:"renderstart",layerid:this.getId(),dataid:this.getDataId()};this.#Re(e),this.#zt&&this.#en(),this.#xt.globalAlpha=this.#Ut,this.clear(),this.#xt.setTransform(this.#Mt.x,0,0,this.#Mt.y,-1*this.#Nt.x*this.#Mt.x,-1*this.#Nt.y*this.#Mt.y),this.#xt.imageSmoothingEnabled=this.#Yt,this.#xt.drawImage(this.#bt,0,0),e={type:"renderend",layerid:this.getId(),dataid:this.getDataId()},this.#Re(e)}initialise(e,t,n){this.#qt=t,this.#Ut=Math.min(Math.max(n,0),1),this.#At=document.createElement("canvas"),this.#Ot.appendChild(this.#At),this.#At.getContext?(this.#xt=this.#At.getContext("2d"),this.#xt?(this.#bt=document.createElement("canvas"),this.#$t(e),this.#zt=!0):alert("Error: failed to get the 2D context.")):alert("Error: no canvas.getContext method.")}#$t(e){if(!ni(e.x,e.y))throw new Error("Cannot create canvas with size "+e.x+", "+e.y);this.#Et=e,this.#bt.width=this.#Et.x,this.#bt.height=this.#Et.y,this.#xt.clearRect(0,0,this.#Et.x,this.#Et.y),this.#Ft=this.#xt.createImageData(this.#Et.x,this.#Et.y)}fitToContainer(e,t,n){let i=!1;if(this.#At.width!==e.x||this.#At.height!==e.y){if(!ni(e.x,e.y))throw new Error("Cannot resize canvas "+e.x+", "+e.y);this.#At.width=e.x,this.#At.height=e.y,i=!0}const r={x:t*this.#qt.x,y:t*this.#qt.y},o={x:this.#Mt.x*r.x/this.#Qt.x,y:this.#Mt.y*r.y/this.#Qt.y};this.#Mt.x===o.x&&this.#Mt.y===o.y||(this.#Qt=r,this.#Mt=o,i=!0);const a={x:n.x/r.x,y:n.y/r.y},s={x:e.x/r.x,y:e.y/r.y},l={x:0!==this.#Ht.x?s.x:0,y:0!==this.#Ht.y?s.y:0};this.#Gt.x===a.x&&this.#Gt.y===a.y&&this.#Ht.x===l.x&&this.#Ht.y===l.y||(this.#Nt={x:this.#Nt.x+a.x-this.#Gt.x+l.x-this.#Ht.x,y:this.#Nt.y+a.y-this.#Gt.y+l.y-this.#Ht.y},this.#Ht=l,this.#Gt=a,i=!0),i&&this.draw()}bindInteraction(){this.#Ot.style.pointerEvents="auto";const e=Kn;for(let t=0;t{e.srclayerid=this.getId(),e.dataid=this.#Wt,this.#Oe.fireEvent(e)};#en(){this.#Pt.generateImageData(this.#Ft),this.#bt.getContext("2d").putImageData(this.#Ft,0,0),this.#zt=!1}#Zt=e=>{void 0!==e.skipGenerate&&!0===e.skipGenerate||(this.#zt=!0,this.draw())};#_t=e=>{void 0!==e.skipGenerate&&!0===e.skipGenerate||(this.#zt=!0,this.draw())};#Kt=e=>{if(void 0===e.skipGenerate||!0!==e.skipGenerate){let t=!0;if(void 0!==e.valid&&(t=e.valid),t){const t=[0,1,2],n=t.indexOf(this.#Pt.getScrollIndex());t.splice(n,1),0===e.diffDims.filter((function(e){return-1===t.indexOf(e)})).length&&this.#Rt||(this.#Rt=!0,this.#zt=!0,this.draw())}else this.#Rt&&(this.#Rt=!1,this.clear())}};#Jt=e=>{void 0!==e.skipGenerate&&!0===e.skipGenerate||(this.#zt=!0,this.draw())};setCurrentPosition(e,t){return this.#Pt.setCurrentPosition(e)}clear(){this.#xt.save(),this.#xt.setTransform(1,0,0,1,0,0),this.#xt.clearRect(0,0,this.#At.width,this.#At.height),this.#xt.restore()}}class ri{#tn;#nn;constructor(e,t){this.#tn=e,this.#nn=t}getName(){return"AddAnnotation-"+this.#tn.id}execute(){this.#nn.addAnnotation(this.#tn)}undo(){this.#nn.removeAnnotation(this.#tn.id)}}class oi{#tn;#nn;constructor(e,t){this.#tn=e,this.#nn=t}getName(){return"RemoveAnnotation-"+this.#tn.id}execute(){this.#nn.removeAnnotation(this.#tn.id)}undo(){this.#nn.addAnnotation(this.#tn)}}class ai{#tn;#nn;#in;#rn;constructor(e,t,n,i){this.#tn=e,this.#nn=i,this.#in=t,this.#rn=n}getName(){return"UpdateAnnotation-"+this.#tn.id}execute(){for(const e in this.#rn)this.#tn[e]=this.#rn[e];this.#nn.updateAnnotation(this.#tn)}undo(){for(const e in this.#in)this.#tn[e]=this.#in[e];this.#nn.updateAnnotation(this.#tn)}}class si{#T;#on;#an;#sn;#ln;constructor(e,t,n,i){this.#T=e,this.#on=t,this.#an=n,this.#sn=void 0!==i&&i,this.#ln=e.getParent()}getName(){return"Draw-"+this.#on}execute(){this.#ln.add(this.#T),this.#an.getKonvaLayer().draw(),this.#sn||this.onExecute({type:"drawcreate",id:this.#T.id(),srclayerid:this.#an.getId(),dataid:this.#an.getDataId()})}undo(){this.#T.remove(),this.#an.getKonvaLayer().draw(),this.onUndo({type:"drawdelete",id:this.#T.id(),srclayerid:this.#an.getId(),dataid:this.#an.getDataId()})}onExecute(e){}onUndo(e){}}class li{#cn;getAnnotation(e){return this.#cn.find(e)}getAnnotationGroup(){return this.#cn}addAnnotation(e){this.#cn.add(e)}updateAnnotation(e){this.#cn.update(e)}removeAnnotation(e){this.#cn.remove(e)}removeAnnotationWithCommand(e,t){const n=this.getAnnotation(e),i=new oi(n,this);t(i),i.execute()}removeAllAnnotationsWithCommand(e){for(const t of this.#cn.getList())this.removeAnnotationWithCommand(t.id,e)}constructor(e){this.#cn=void 0!==e?e:new _n}hasAnnotationMeta(e){return this.#cn.hasMeta(e)}setAnnotationMeta(e,t){this.#cn.setMetaValue(e,t)}getDrawStoreDetails(){}}class ci{#un;#dn;constructor(e,t){this.#un=e,this.#dn=t}#hn=null;#Sn=null;#gn;#tn;#pn=!1;setShape(e,t,n){if(this.#Sn=e,this.#gn=t,this.#tn=n,this.#Sn){if(this.#mn(),this.#hn=n.getFactory(),null===this.#hn)throw new Error("Could not find a factory to update shape.");this.#fn()}}getShape(){return this.#Sn}getAnnotation(){return this.#tn}isActive(){return this.#pn}enable(){this.#pn=!0,this.#Sn&&(this.#Dn(!0),this.#Sn.getLayer()&&this.#Sn.getLayer().draw())}disable(){this.#pn=!1,this.#Sn&&(this.#Dn(!1),this.#Sn.getLayer()&&this.#Sn.getLayer().draw())}reset(){this.#Sn=void 0,this.#gn=void 0,this.#tn=void 0}resetAnchors(){this.#mn(),this.#fn(),this.#Dn(!0)}#yn(e){this.#Sn&&this.#Sn.getParent()&&this.#Sn.getParent().find(".anchor").forEach(e)}#Dn(e){this.#yn((function(t){t.visible(e)}))}setAnchorsActive(e){let t=null;t=e?e=>{this.#Cn(e)}:e=>{this.#vn(e)},this.#yn(t)}#mn(){this.#yn((function(e){e.remove()}))}#fn(){if(!this.#Sn||!this.#Sn.getLayer())return;const e=this.#Sn.getParent(),t=this.#hn.getAnchors(this.#Sn,this.#un.getStyle());for(let n=0;n{e.cancelBubble=!0,t=this.#tn.mathShape})),e.on("dragmove.edit",(e=>{const t=e.target;t instanceof Fn().Shape&&(function(e,t){const n=t.getParent();Vn(t,new F(-n.x(),-n.y()),new F(e.x-n.x(),e.y-n.y()))}(this.#gn.getBaseSize(),t),void 0!==this.#hn.constrainAnchorMove&&this.#hn.constrainAnchorMove(t),this.#hn.updateAnnotationOnAnchorMove(this.#tn,t),this.#hn.updateShapeGroupOnAnchorMove(this.#tn,t,this.#un.getStyle()),t.getLayer()?t.getLayer().draw():c.warn("No layer to draw the anchor!"),e.cancelBubble=!0)})),e.on("dragend.edit",(e=>{const n=this.#tn.mathShape,i=new ai(this.#tn,{mathShape:t},{mathShape:n},this.#gn.getDrawController());this.#un.addToUndoStack(i),this.#dn({type:"annotationupdate",data:this.#tn}),t=n,e.cancelBubble=!0})),e.on("mousedown touchstart",(e=>{e.target.moveToTop()})),e.on("mouseover.edit",(e=>{const t=e.target;t instanceof Fn().Shape&&(t.stroke("#ddd"),t.getLayer()?t.getLayer().draw():c.warn("No layer to draw the anchor!"))})),e.on("mouseout.edit",(e=>{const t=e.target;t instanceof Fn().Shape&&(t.stroke("#999"),t.getLayer()?t.getLayer().draw():c.warn("No layer to draw the anchor!"))}))}#vn(e){e.off("dragstart.edit"),e.off("dragmove.edit"),e.off("dragend.edit"),e.off("mousedown touchstart"),e.off("mouseover.edit"),e.off("mouseout.edit")}}class ui{#In;constructor(){this.createTrashIcon()}createTrashIcon(){this.#In=new(Fn().Group);const e=new(Fn().Line)({points:[-10,-10,10,10],stroke:"red"}),t=new(Fn().Line)({points:[10,-10,-10,10],stroke:"red"});this.#In.width(20),this.#In.height(20),this.#In.add(e),this.#In.add(t)}activate(e){const t=e.getKonvaStage(),n=t.scale(),i=e.getKonvaLayer(),r={x:1/n.x,y:1/n.y};this.#In.x(t.offset().x+t.width()/(2*n.x)),this.#In.y(t.offset().y+t.height()/(15*n.y)),this.#In.scale(r),i.add(this.#In),i.draw()}changeChildrenColourOnTrashHover(e,t,n){if(this.isOverTrash(e))return this.changeGroupChildrenColour(this.#In,"orange"),void this.changeGroupChildrenColour(t,"red");this.changeGroupChildrenColour(this.#In,"red"),this.changeGroupChildrenColour(t,n)}changeGroupChildrenColour(e,t){e.getChildren().forEach((function(e){e instanceof Fn().Shape&&void 0!==e.stroke&&e.stroke(t)}))}remove(){this.#In.remove()}isOverTrash(e){const t=this.#In.width()*Math.abs(this.#In.scaleX())/2,n=this.#In.height()*Math.abs(this.#In.scaleY())/2;return Math.abs(e.x-this.#In.x()){this.#wn=e,this.#An()})),e.on("mouseout",(()=>{this.onMouseOutShapeGroup(),this.#wn=void 0}))}#xn(e){e.off("mouseover"),e.off("mouseout")}addShapeListeners(e,t,n){this.#bn(t);const i=e.getKonvaLayer(),r=t.getChildren(qn)[0];if(!(r instanceof Fn().Shape))return;r.draggable(!0);const o=t.getChildren(En)[0];if(!(o instanceof Fn().Label))return;o.draggable(!0);let a,s,l,c,u,d=!0;r.on("dragstart.draw",(t=>{c=r.stroke(),a={x:r.x(),y:r.y()},s={x:t.target.x(),y:t.target.y()},l=n.mathShape,this.#In.activate(e),this.#Tn.setAnchorsActive(!1),i.draw()})),r.on("dragmove.draw",(r=>{const o={x:r.target.x()-s.x,y:r.target.y()-s.y},a=t.getChildren();for(const e of a)e===r.target||"label"===e.name()&&!d||e.move(o);s={x:r.target.x(),y:r.target.y()},function(e,t){const n=t.getChildren(qn)[0],i=function(e){const t=e.find(".anchor");if(0===t.length)return;let n=t[0].x(),i=t[0].y();for(let e=0;e{if(this.#In.remove(),void 0===o||void 0===o.evt)return;const s=r.x(),u=r.y(),d=ti(o.evt),h={x:d.getX(),y:d.getY()},S=this.#On(h,e);if(this.#In.isOverTrash(S)){t.x(a.x),t.y(a.y),this.#Tn.disable(),this.#Tn.reset(),this.#In.changeGroupChildrenColour(t,c),n.mathShape=l;const i=new oi(n,e.getDrawController());this.#un.addToUndoStack(i),i.execute(),this.onMouseOutShapeGroup()}else{const t={x:s-a.x,y:u-a.y};if(0!==t.x||0!==t.y){const t=n.mathShape,i=new ai(n,{mathShape:l},{mathShape:t},e.getDrawController());this.#un.addToUndoStack(i),this.#dn({type:"annotationupdate",data:n}),l=t}this.#Tn.setAnchorsActive(!0),this.#Tn.resetAnchors()}i.draw(),a={x:r.x(),y:r.y()}})),o.on("dragstart.draw",(()=>{d=!1,a={x:o.x(),y:o.y()},u=n.labelPosition})),o.on("dragend.draw",(()=>{const t=o.x()-a.x,i=o.y()-a.y;if(0!==t||0!==i){const t=new F(o.x(),o.y()),i=new ai(n,{labelPosition:u},{labelPosition:t},e.getDrawController());this.#un.addToUndoStack(i),this.#dn({type:"annotationupdate",data:n}),u=t}a={x:r.x(),y:r.y()}})),t.on("dblclick",(()=>{const t=n.textExpr;Jn.openRoiDialog(n,(n=>{const i=n.textExpr,r=new ai(n,{textExpr:t},{textExpr:i},e.getDrawController());this.#un.addToUndoStack(r),r.execute()}))}))}removeShapeListeners(e){this.#xn(e);const t=e.getChildren(qn)[0];t instanceof Fn().Shape&&(t.draggable(!1),t.off("dragstart.draw"),t.off("dragmove.draw"),t.off("dragend.draw"),t.off("dblclick"));const n=e.getChildren(En)[0];n instanceof Fn().Label&&(n.draggable(!1),n.off("dragstart.draw"),n.off("dragend.draw"))}}class hi{#Ot;#Rn=null;#Et;#qt;#Qt={x:1,y:1};#Vt={x:1,y:1,z:1};#Bt={x:0,y:0};#Gt={x:0,y:0};#kt={x:0,y:0};#Ht={x:0,y:0};#nn;#We;#Wt;#Fn=null;#En;constructor(e){this.#Ot=e,this.#Ot.className+=" drawLayer"}setShapeHandler(e){this.#En=e}getDataId(){return this.#Wt}#Oe=new Ze;getKonvaStage(){return this.#Rn}getKonvaLayer(){return this.#Rn.getLayers()[0]}getDrawController(){return this.#nn}setPlaneHelper(e){this.#We=e}getId(){return this.#Ot.id}removeFromDOM(){this.#Ot.remove()}getBaseSize(){return this.#Et}getOpacity(){return this.#Rn.opacity()}setOpacity(e){this.#Rn.opacity(Math.min(Math.max(e,0),1))}addFlipOffsetX(){const e=this.#Rn.scale(),t=this.#Rn.size();this.#Ht.x+=t.width/e.x;const n=this.#Rn.offset();n.x+=this.#Ht.x,this.#Rn.offset(n)}addFlipOffsetY(){const e=this.#Rn.scale(),t=this.#Rn.size();this.#Ht.y+=t.height/e.y;const n=this.#Rn.offset();n.y+=this.#Ht.y,this.#Rn.offset(n)}flipScaleX(){this.#Vt.x*=-1}flipScaleY(){this.#Vt.y*=-1}flipScaleZ(){this.#Vt.z*=-1}setScale(e,t){const n=this.#We.getTargetOrientedPositiveXYZ({x:e.x*this.#Vt.x,y:e.y*this.#Vt.y,z:e.z*this.#Vt.z}),i={x:this.#Qt.x*n.x,y:this.#Qt.y*n.y},r=this.#Rn.offset();if(1===Math.abs(e.x)&&1===Math.abs(e.y)&&1===Math.abs(e.z)){const e={x:r.x-this.#kt.x,y:r.y-this.#kt.y};this.#kt={x:0,y:0},this.#Rn.offset(e)}else if(void 0!==t){let e=this.#We.getPlaneOffsetFromOffset3D({x:t.getX(),y:t.getY(),z:t.getZ()});e={x:e.x+this.#Bt.x,y:e.y+this.#Bt.y};const n=mi(r,this.#Rn.scale(),i,e),o={x:this.#kt.x+n.x-r.x,y:this.#kt.y+n.y-r.y};this.#kt=o,this.#Rn.offset(n)}this.#Rn.scale(i),this.#qn(i)}setOffset(e){const t=this.#We.getPlaneOffsetFromOffset3D(e);this.#Rn.offset({x:t.x+this.#Gt.x+this.#Bt.x+this.#kt.x+this.#Ht.x,y:t.y+this.#Gt.y+this.#Bt.y+this.#kt.y+this.#Ht.y})}setBaseOffset(e,t){const n=this.#We.getNativeScrollIndex(),i=this.#We.getPlaneOffsetFromOffset3D({x:0===n?e.getX():t.getX(),y:1===n?e.getY():t.getY(),z:2===n?e.getZ():t.getZ()}),r=this.#Bt.x!==i.x||this.#Bt.y!==i.y;if(r){const e=this.#Rn.offset();this.#Rn.offset({x:e.x-this.#Bt.x+i.x,y:e.y-this.#Bt.y+i.y}),this.#Bt=i}return r}display(e){this.#Ot.style.display=e?"":"none"}isVisible(){return""===this.#Ot.style.display}draw(){this.#Rn.draw()}initialise(e,t){this.#Et=e,this.#qt=t,this.#Rn=new(Fn().Stage)({container:this.#Ot,width:this.#Et.x,height:this.#Et.y,listening:!1}),this.#Rn.getContent().setAttribute("style","");const n=new(Fn().Layer)({listening:!1,visible:!0});this.#Rn.add(n)}setAnnotationGroup(e,t,n){if(this.#Wt=t,e.addEventListener("annotationadd",(e=>{this.#Un(e.data,!0),this.getKonvaLayer().draw()})),e.addEventListener("annotationupdate",(e=>{this.#Mn(e.data),this.getKonvaLayer().draw()})),e.addEventListener("annotationremove",(e=>{this.#Qn(e.data),this.getKonvaLayer().draw()})),this.#nn=new li(e),0!==e.getLength())for(const t of e.getList())this.#Un(t,!1),n(new ri(t,this.getDrawController()))}#Vn(e){const t=e.getOriginIndex();if(void 0!==t)return t.toStringId([2]);console.log("Unknown reference origin for annotation: "+e.referenceSopUID)}#Nn(e){let t;const n=this.#Vn(e),i=this.getKonvaLayer().getChildren(Mn(n));if(0!==i.length){const n=i[0];if(!(n instanceof Fn().Group))return;const r=n.getChildren(Mn(e.id));0!==r.length&&r[0]instanceof Fn().Group&&(t=r[0])}return t}#Un(e,t){const n=this.#Vn(e);let i=this.getKonvaLayer().getChildren(Mn(n))[0];if(void 0===i&&(i=new(Fn().Group)({id:n,name:"position-group",visible:t}),this.getKonvaLayer().add(i)),!(i instanceof Fn().Group))return;const r=new xn,o=this.getKonvaStage();r.setZoomScale(o.scale());const a=e.getFactory().createShapeGroup(e,r);i.add(a),t&&void 0!==this.#En&&this.#En.addShapeListeners(this,a,e)}#Qn(e){const t=this.#Nn(e);t instanceof Fn().Group&&t.remove()}#Mn(e){e.updateQuantification(),this.#Qn(e),this.#Un(e,!0)}fitToContainer(e,t,n){this.#Rn.width(e.x),this.#Rn.height(e.y);const i={x:t*this.#qt.x,y:t*this.#qt.y},r={x:this.#Rn.scale().x*i.x/this.#Qt.x,y:this.#Rn.scale().y*i.y/this.#Qt.y};this.#Rn.scale().x===r.x&&this.#Rn.scale().y===r.y||(this.#Qt=i,this.#Rn.scale(r));const o={x:n.x/i.x,y:n.y/i.y},a={x:e.x/i.x,y:e.y/i.y},s={x:0!==this.#Ht.x?a.x:0,y:0!==this.#Ht.y?a.y:0};this.#Gt.x===o.x&&this.#Gt.y===o.y&&this.#Ht.x===s.x&&this.#Ht.y===s.y||(this.#Rn.offset({x:this.#Rn.offset().x+o.x-this.#Gt.x+s.x-this.#Ht.x,y:this.#Rn.offset().y+o.y-this.#Gt.y+s.y-this.#Ht.y}),this.#Ht=s,this.#Gt=o)}isGroupVisible(e){const t=this.getGroup(e);return void 0!==t&&t.isVisible()}toggleGroupVisibility(e){const t=this.getGroup(e);return void 0!==t&&(t.visible(!t.isVisible()),this.draw(),!0)}deleteDraw(e,t){}deleteDraws(e){}getNumberOfDraws(){const e=this.getKonvaLayer().getChildren();let t=0;for(const n of e)n instanceof Fn().Group&&(t+=n.getChildren().length);return t}bindInteraction(){this.#Rn.listening(!0),this.#Ot.style.pointerEvents="auto";const e=Kn;for(let t=0;te.id()===this.#Fn));let t;return 1===e.length?e[0]instanceof Fn().Group&&(t=e[0]):0===e.length?(t=new(Fn().Group),t.name("position-group"),t.id(this.#Fn),t.visible(!0),this.getKonvaLayer().add(t)):c.warn("Unexpected number of draw position groups."),t}getNonCurrentPosGroup(){return this.getKonvaLayer().getChildren((e=>e.id()!==this.#Fn))}getGroup(e){const t=this.getKonvaLayer().findOne("#"+e);return void 0===t&&c.warn("Cannot find node with id: "+e),t}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{e.srclayerid=this.getId(),e.dataid=this.#Wt,this.#Oe.fireEvent(e)};#qn(e){const t=2/e.x,n=2/e.y,i=this.#Rn.find("Label");for(let e=0;e{this.#Xn()};getDivId(){return this.#Ot.id}getScale(){return this.#Mt}getBaseScale(){return this.#ot}getAddedScale(){return{x:this.#Mt.x/this.#ot.x,y:this.#Mt.y/this.#ot.y,z:this.#Mt.z/this.#ot.z}}getOffset(){return this.#Nt}getNumberOfLayers(){let e=0;return this.#Bn.forEach((t=>{void 0!==t&&e++})),e}includes(e){if(void 0===e)return!1;for(const t of this.#Bn)if(void 0!==t&&t.getId()===e)return!0;return!1}getNumberOfViewLayers(){let e=0;return this.#Bn.forEach((t=>{void 0!==t&&t instanceof ii&&e++})),e}getActiveViewLayer(){let e;if(void 0!==this.#Gn){const t=this.#Bn[this.#Gn];t instanceof ii&&(e=t)}return e}getBaseViewLayer(){let e;return this.#Bn[0]instanceof ii&&(e=this.#Bn[0]),e}getViewLayersByDataId(e){const t=[];for(const n of this.#Bn)n instanceof ii&&n.getDataId()===e&&t.push(n);return t}searchViewLayers(e){const t=[];for(const n of this.#Bn)n instanceof ii&&n.getViewController().equalImageMeta(e)&&t.push(n);return t}getViewDataIndices(){const e=[];for(const t of this.#Bn)t instanceof ii&&e.push(t.getDataId());return e}getActiveDrawLayer(){let e;if(void 0!==this.#kn){const t=this.#Bn[this.#kn];t instanceof hi&&(e=t)}return e}getDrawLayersByDataId(e){const t=[];for(const n of this.#Bn)n instanceof hi&&n.getDataId()===e&&t.push(n);return t}setActiveViewLayer(e){this.#Bn[e]instanceof ii?(this.#Gn=e,this.#Re({type:"activelayerchange",value:[this.#Bn[e]]})):c.warn("No view layer to set as active with index: "+e)}setActiveViewLayerByDataId(e){let t;for(let n=0;n0;)e[0].remove()}removeLayersByDataId(e){for(const t of this.#Bn)void 0!==t&&t.getDataId()===e&&this.removeLayer(t)}removeLayer(e){const t=this.#Bn.findIndex((t=>t===e));if(-1===t)throw new Error("Cannot find layer to remove");e instanceof ii?(this.#Jn(e),this.#Gn===t&&(this.#Gn=void 0)):(this.#$n(e),this.#kn===t&&(this.#kn=void 0)),this.#Bn[t]=void 0,e.removeFromDOM()}#Xn(e){let t;void 0===e&&(e=this.#Ve),this.#jn();for(const e of this.#Bn)if(e instanceof ii){t=e;break}if(void 0===t)return void c.warn("No layer to show crosshair");const n=t.getViewController().getPlanePositionFromPosition(e),i=t.planePosToDisplay(n);if(void 0!==i.getY()){const e=document.createElement("hr");e.id=this.getDivId()+"-scroll-crosshair-horizontal",e.className="horizontal",e.style.width=this.#Ot.offsetWidth+"px",e.style.left="0px",e.style.top=i.getY()+"px",this.#zn.push(e),this.#Ot.appendChild(e)}if(void 0!==i.getX()){const e=document.createElement("hr");e.id=this.getDivId()+"-scroll-crosshair-vertical",e.className="vertical",e.style.width=this.#Ot.offsetHeight+"px",e.style.left=i.getX()+"px",e.style.top="0px",this.#zn.push(e),this.#Ot.appendChild(e)}}#jn(){for(const e of this.#zn)e.remove();this.#zn=[]}showTooltip(e){this.removeTooltipDiv();const t=this.getActiveViewLayer(),n=t.getViewController(),i=t.displayToPlanePos(e),r=n.getPositionFromPlanePoint(i),o=n.getRescaledImageValue(r);if(void 0!==o){const t=document.createElement("span");t.id="scroll-tooltip",t.style.left=e.getX()+10+"px",t.style.top=e.getY()+10+"px";let i=G(o,3).toString();void 0!==n.getPixelUnit()&&(i+=" "+n.getPixelUnit()),t.appendChild(document.createTextNode(i)),this.#Wn=t,this.#Ot.appendChild(t)}}removeTooltipDiv(){void 0!==this.#Wn&&(this.#Wn.remove(),this.#Wn=void 0)}someViewLayer(e){let t=!1;for(const n of this.#Bn)if(n instanceof ii&&e(n)){t=!0;break}return t}isPositionInBounds(e){return this.someViewLayer((function(t){return t.getViewController().isPositionInBounds(e)}))}canScroll(){return this.someViewLayer((function(e){return e.getViewController().canScroll()}))}moreThanOne(e){return this.someViewLayer((function(t){return t.getViewController().moreThanOne(e)}))}updateLayersToPositionChange=e=>{for(const e of this.#Bn)e instanceof ii&&(e.removeEventListener("positionchange",this.updateLayersToPositionChange),e.removeEventListener("positionchange",this.#Re));const t=new s(e.value[0]),n=new q(e.value[1]);let i,r,o,a;this.#Ve=n,this.#Hn&&this.#Xn(n);for(const s of this.#Bn){if(void 0===s)continue;let l=!1;if(s instanceof ii){const e=s.getViewController(),t=e.getOrigin(),l=e.getOrigin(n);if(void 0===r)i=t,r=l,o=new w(0,0,0),a=new w(0,0,0);else if(e.isPositionInBounds(n)&&void 0!==l){const e=i.minus(t);o=new w(e.getX(),e.getY(),e.getZ());const n=r.minus(l);a=new w(n.getX(),n.getY(),n.getZ())}}void 0!==o&&void 0!==a&&(l=s.setBaseOffset(o,a,r,i)),s instanceof hi&&(o=void 0,a=void 0);let c=!1;s.getId()!==e.srclayerid&&(c=s.setCurrentPosition(n,t)),!c&&l&&s.draw()}for(const e of this.#Bn)e instanceof ii&&(e.addEventListener("positionchange",this.updateLayersToPositionChange),e.addEventListener("positionchange",this.#Re))};getDivToWorldSizeRatio(){if(0===this.#Ot.offsetWidth&&0===this.#Ot.offsetHeight)throw new Error("Cannot fit to zero sized container.");const e=this.getMaxWorldSize();if(void 0!==e){if(0===this.#Ot.offsetHeight){const t=this.#Ot.offsetWidth/e.x,n=e.y*t;this.#Ot.style.height=n+"px"}return Math.min(this.#Ot.offsetWidth/e.x,this.#Ot.offsetHeight/e.y)}}fitToContainer(e){const t=this.getMaxWorldSize();if(void 0===t)return;const n={x:this.#Ot.offsetWidth,y:this.#Ot.offsetHeight},i={x:-.5*(n.x-Math.floor(t.x*e)),y:-.5*(n.y-Math.floor(t.y*e))};for(const t of this.#Bn)void 0!==t&&t.fitToContainer(n,e,i);this.#Hn&&this.#Xn()}getMaxWorldSize(){let e={x:0,y:0};for(const t of this.#Bn)if(t instanceof ii){const n=t.getImageWorldSize();n.x>e.x&&(e.x=n.x),n.y>e.y&&(e.y=n.y)}return 0===e.x&&0===e.y&&(e=void 0),e}flipScaleZ(){this.#ot.z*=-1,this.setScale(this.#ot)}addScale(e,t){const n={x:this.#Mt.x*(1+e),y:this.#Mt.y*(1+e),z:this.#Mt.z*(1+e)};this.setScale(n,t)}setScale(e,t){this.#Mt=e;for(const e of this.#Bn)void 0!==e&&e.setScale(this.#Mt,t);const n=[e.x,e.y,e.z];void 0!==t&&(n.push(t.getX()),n.push(t.getY()),n.push(t.getZ())),this.#Re({type:"zoomchange",value:n})}addTranslation(e){this.setOffset({x:this.#Nt.x-e.x,y:this.#Nt.y-e.y,z:this.#Nt.z-e.z})}setOffset(e){this.#Nt=e;for(const e of this.#Bn)void 0!==e&&e.setOffset(this.#Nt);this.#Re({type:"offsetchange",value:[this.#Nt.x,this.#Nt.y,this.#Nt.z]})}reset(){this.setScale(this.#ot),this.setOffset({x:0,y:0,z:0})}draw(){for(const e of this.#Bn)void 0!==e&&e.draw()}display(e){for(const t of this.#Bn)void 0!==t&&t.display(e)}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}}const Di={WindowLevelBinder:class{getEventType=function(){return"wlchange"};getCallback=function(e){return function(t){const n=e.getViewLayersByDataId(t.dataid);if(0!==n.length){const e=n[0].getViewController();if(2===t.value.length){const n=new u(t.value[0],t.value[1]);e.setWindowLevel(n)}3===t.value.length&&e.setWindowLevelPreset(t.value[2])}}}},PositionBinder:class{getEventType=function(){return"positionchange"};getCallback=function(e){return function(t){const n=t.value[1],i=e.getActiveViewLayer().getViewController(),r=i.getCurrentPosition(),o=r.length(),a=n.length;a!==o&&(a===o-1?n.push(r.get(o-1)):a===o+1&&n.pop()),i.setCurrentPosition(new q(n))}}},ZoomBinder:class{getEventType=function(){return"zoomchange"};getCallback=function(e){return function(t){const n={x:t.value[0],y:t.value[1],z:t.value[2]};let i;6===t.value.length&&(i=new E(t.value[3],t.value[4],t.value[5])),e.setScale(n,i),e.draw()}}},OffsetBinder:class{getEventType=function(){return"offsetchange"};getCallback=function(e){return function(t){e.setOffset({x:t.value[0],y:t.value[1],z:t.value[2]}),e.draw()}}},OpacityBinder:class{getEventType=function(){return"opacitychange"};getCallback=function(e){return function(t){if(void 0===t.dataid)return;const n=e.getViewLayersByDataId(t.dataid);0!==n.length&&(n[0].setOpacity(t.value),n[0].draw())}}},ColourMapBinder:class{getEventType=function(){return"colourmapchange"};getCallback=function(e){return function(t){const n=e.getViewLayersByDataId(t.dataid);0!==n.length&&n[0].getViewController().setColourMap(t.value[0])}}}};class yi{#ei=[];#ti;#Yt=!1;#ni=[];#ii=null;getLayerGroup(e){return this.#ei[e]}getNumberOfLayerGroups(){return this.#ei.length}getActiveLayerGroup(){return this.getLayerGroup(this.#ti)}setActiveLayerGroup(e){void 0!==this.getLayerGroup(e)?this.#ti=e:c.warn("No layer group to set as active with index: "+e)}getViewLayersByDataId(e){let t=[];for(let n=0;nt===e));if(-1===t)throw new Error("Cannot find layerGroup to remove");this.unbindLayerGroups(),e.empty(),this.#ei.splice(t,1),this.#ti===t&&(this.#ti=void 0),this.bindLayerGroups()}reset(){for(let e=0;e{this.#oi(t,e),e.getCallback(this.#ei[t])(n),this.#ri(t,e)}},this.#ii[t].push(n)),n.callback}#ri(e,t){for(let n=0;n0&&(--this.#Si,this.#hi[this.#Si].undo(),this.#Re({type:"undo",command:this.#hi[this.#Si].getName()}))}redo(){this.#Si{this.#Oe.fireEvent(e)}}class Ai{#gi;#pi=null;#ii=[];#mi={};constructor(e){this.#gi=e}init(){for(const e in this.#gi)this.#gi[e].init();this.enableShortcuts(!0)}enableShortcuts(e){e?window.addEventListener("keydown",this.#fi("window","keydown"),!0):window.removeEventListener("keydown",this.#fi("window","keydown"),!0)}getToolList(){return this.#gi}hasTool(e){return void 0!==this.getToolList()[e]}getSelectedTool(){return this.#pi}getSelectedToolEventHandler(e){return this.getSelectedTool()[e]}setSelectedTool(e){if(!this.hasTool(e))throw new Error("Unknown tool: '"+e+"'");this.#pi&&this.#pi.activate(!1),this.#pi=this.#gi[e],this.#pi.activate(!0)}setToolFeatures(e){this.getSelectedTool()&&this.getSelectedTool().setFeatures(e)}bindLayerGroup(e,t){const n=e.getDivId();e.addEventListener("activelayerchange",this.#Di(n)),this.#yi(n,t)}#yi(e,t){void 0!==this.#mi[e]&&this.#Ci(this.#mi[e]),this.#mi[e]=t,this.#vi(t)}#Di(e){return t=>{const n=t.value[0];this.#yi(e,n)}}#vi(e){e.bindInteraction();const t=Kn;for(let n=0;n{if(this.#pi){const t=this.#pi[e.type];t&&t(e)}};this.#ii[e][t]=n}return this.#ii[e][t]}}class bi{#Ii=[];#Ti=2;#Li;constructor(e){this.#Li=e}setNumberOfDimensions(e){this.#Ti=e}setNToLoad(e){for(let t=0;t{if(!e.lengthComputable)return;if(void 0===e.subindex)return;if(void 0===e.index)return;const t=100*e.loaded/e.total;this.#Ii[e.index][e.subindex]=t;let n=null;n=void 0!==e.item?e.item:{loaded:this.#Pi(e.index),total:100,source:e.source},this.#Li({lengthComputable:!0,loaded:this.#wi(),total:100,item:n})};#Pi(e){let t=0;for(let n=0;n{n.index=e,n.subindex=t,this.onprogress(n)}}getUndefinedMonoProgressHandler(e){return t=>{t.subindex=e,this.onprogress(t)}}}class xi{#Oi=null;#Ai=[];#bi=null;#xi=0;#Ri=0;#Fi;#F;getDefaultCharacterSet(){return this.#F}setDefaultCharacterSet(e){this.#F=e}#Ei(e){this.#Oi=e,this.#xi=0,this.#Ri=0,this.#Fi=!1,this.#qi(),this.#Ui()}#Mi(e){this.#Ai.push(e)}#qi(){this.#Ai=[]}#Qi(e){this.#bi=e}#Ui(){this.#bi=null}#Vi=e=>{this.#xi++,this.#xi===this.#Oi.length&&this.onload({source:this.#Oi})};#Ni=e=>{this.#Ri++,this.#Ri===this.#Oi.length&&this.onloadend({source:this.#Oi})};#Bi(e,t){return n=>{n.source=t,e(n)}}load(e,t){this.onloadstart({source:e}),1===e.length&&(M(e[0],"DICOMDIR")||M(e[0],".dcmdir"))?this.#Gi(e[0],t):this.#ki(e,t)}#Hi(e,t,n){return i=>{const r=i.target.status;200!==r&&0!==r?(this.onerror({source:t,error:"GET "+i.target.responseURL+" "+i.target.status+" ("+i.target.statusText+")",target:i.target}),this.#Ni()):e.load(i.target.response,t,n)}}#ki(e,t){if(void 0===e||0===e.length)return;this.#Ei(e);const n=new bi(this.onprogress);n.setNToLoad(e.length);const i=[];for(let e=0;e{s{this.#Ni(),s(e)};const c=this.#Bi(this.onabort,r);a.onabort=e=>{this.#Ni(),c(e)},1===o.loadUrlAs()&&(a.responseType="arraybuffer"),this.#Mi(a)}let c=this.#Ai.length;void 0!==t&&void 0!==t.batchSize&&0!==c&&(c=Math.min(t.batchSize,this.#Ai.length));for(let e=0;e{const i=n.target.status;if(200!==i&&0!==i)this.onerror({source:e,error:"GET "+n.target.responseURL+" "+n.target.status+" ("+n.target.statusText+")",target:n.target}),this.onloadend({});else{const i=function(e){const t=new je;t.parse(e);const n=t.getDicomElements();if(void 0===n["00041220"]||void 0===n["00041220"].value)return void c.warn("No Directory Record Sequence found in DICOMDIR.");const i=n["00041220"].value;if(0===i.length)return void c.warn("The Directory Record Sequence of the DICOMDIR is empty.");const r=[];let o=null,a=null;for(let e=0;e{this.#Bi(this.onerror,e)(t),this.onloadend({})},n.onabort=t=>{this.#Bi(this.onabort,e)(t),this.onloadend({})},n.send(null)}abort(){this.#Fi=!0;for(let e=0;e0){const t=this.freeThreads.shift();this.runningThreads.push(t),t.run(e)}else this.taskQueue.push(e)}abort(){this.#zi(),this.onabort({type:"work-abort"}),this.onworkend({type:"work-end"})}onTaskEnd(e){if(this.taskQueue.length>0){const t=this.taskQueue.shift();e.run(t)}else{e.stop(),this.freeThreads.push(e);for(let t=0;t{this.#zi(),this.onerror({error:e}),this.onworkend({type:"work-end"})};#zi(){this.taskQueue=[];for(let e=0;e{e.itemNumber=this.runningTask.info.itemNumber,e.numberOfItems=this.runningTask.info.numberOfItems,e.index=this.runningTask.info.index,this.parentPool.onworkitem(e),this.parentPool.onTaskEnd(this)};onerror=e=>{e.itemNumber=this.runningTask.info.itemNumber,e.numberOfItems=this.runningTask.info.numberOfItems,e.index=this.runningTask.info.index,this.parentPool.handleWorkerError(e),this.stop()}}class Ei{constructor(e,t,n){this.script=e,this.startMessage=t,this.info=n}}const qi="undefined"!=typeof JpegImage,Ui="undefined"!=typeof jpeg&&void 0!==jpeg.lossless,Mi="undefined"!=typeof JpxImage,Qi={jpeg2000:"","jpeg-lossless":"","jpeg-baseline":"",rle:""};class Vi{#Wi;#Yi=new Ri(10);#Xi=!1;constructor(e,t){this.#Wi=e}decode(e,t,n){this.#Xi||(this.#Xi=!0,this.#Yi.onworkstart=this.ondecodestart,this.#Yi.onworkitem=this.ondecodeditem,this.#Yi.onwork=this.ondecoded,this.#Yi.onworkend=this.ondecodeend,this.#Yi.onerror=this.onerror,this.#Yi.onabort=this.onabort);const i=new Ei(this.#Wi,{buffer:e,meta:t},n);this.#Yi.addWorkerTask(i)}abort(){this.#Yi.abort()}ondecodestart(e){}ondecodeditem(e){}ondecoded(e){}ondecodeend(e){}onerror(e){}onabort(e){}}class Ni{#ji;#Zi;constructor(e,t){this.#ji=e,this.#Zi=t}#_i=0;decode(e,t,n){++this.#_i;let i=null,r=null;if("jpeg-lossless"===this.#ji){if(!Ui)throw new Error("No JPEG Lossless decoder provided");const n=t.bitsAllocated/8,o=new Uint8Array(e);i=new jpeg.lossless.Decoder;const a=i.decode(o.buffer,0,o.buffer.byteLength,n);8===t.bitsAllocated?r=t.isSigned?new Int8Array(a.buffer):new Uint8Array(a.buffer):16===t.bitsAllocated&&(r=t.isSigned?new Int16Array(a.buffer):new Uint16Array(a.buffer))}else if("jpeg-baseline"===this.#ji){if(!qi)throw new Error("No JPEG Baseline decoder provided");i=new JpegImage,i.parse(e),r=i.getData(i.width,i.height)}else if("jpeg2000"===this.#ji){if(!Mi)throw new Error("No JPEG 2000 decoder provided");i=new JpxImage,i.parse(e),r=i.tiles[0].items}else"rle"===this.#ji&&(i=new dwvdecoder.RleDecoder,r=i.decode(e,t.bitsAllocated,t.isSigned,t.sliceSize,t.samplesPerPixel,t.planarConfiguration));this.ondecodeditem({data:[r],index:n.index,numberOfItems:n.numberOfItems,itemNumber:n.itemNumber}),this.#_i===this.#Zi&&(this.ondecoded({}),this.ondecodeend({}))}abort(){this.onabort({}),this.ondecodeend({})}ondecodestart(e){}ondecodeditem(e){}ondecoded(e){}ondecodeend(e){}onerror(e){}onabort(e){}}class Bi{#Xi=!1;#Ki=null;constructor(e,t){void 0!==Qi&&void 0!==Qi[e]?this.#Ki=new Vi(Qi[e],t):this.#Ki=new Ni(e,t)}decode(e,t,n){this.#Xi||(this.#Xi=!0,this.#Ki.ondecodestart=this.ondecodestart,this.#Ki.ondecodeditem=this.ondecodeditem,this.#Ki.ondecoded=this.ondecoded,this.#Ki.ondecodeend=this.ondecodeend,this.#Ki.onerror=this.onerror,this.#Ki.onabort=this.onabort),this.#Ki.decode(e,t,n)}abort(){this.#Ki.abort()}ondecodestart(e){}ondecodeditem(e){}ondecoded(e){}ondecodeend(e){}onerror(e){}onabort(e){}}const Gi={NumericValue:"0040A30A",FloatingPointValue:"0040A161",RationalNumeratorValue:"0040A162",RationalDenominatorValue:"0040A163",MeasurementUnitsCodeSequence:"004008EA"};class ki{numericValue;floatingPointValue;rationalNumeratorValue;rationalDenominatorValue;measurementUnitsCode;toString(){return this.numericValue+" "+this.measurementUnitsCode.toString()}}function Hi(e){const t={};return void 0!==e.measurementUnitsCode&&(t.MeasurementUnitsCodeSequence={value:[kt(e.measurementUnitsCode)]}),void 0!==e.floatingPointValue&&(t.FloatingPointValue=e.floatingPointValue),void 0!==e.rationalNumeratorValue&&(t.RationalNumeratorValue=e.rationalNumeratorValue),void 0!==e.rationalDenominatorValue&&(t.RationalDenominatorValue=e.rationalDenominatorValue),void 0!==e.numericValue&&(t.NumericValue=e.numericValue),t}const zi={MeasuredValueSequence:"0040A300",NumericValueQualifierCodeSequence:"0040A301"};class Wi{measuredValue;numericValueQualifierCode;toString(){let e=this.measuredValue.toString();return void 0!==this.numericValueQualifierCode&&(e+=" "+this.numericValueQualifierCode.toString()),e}}function Yi(e){const t={};return void 0!==e.measuredValue&&(t.MeasuredValueSequence={value:[Hi(e.measuredValue)]}),void 0!==e.numericValueQualifierCode&&(t.NumericValueQualifierCodeSequence={value:[kt(e.numericValueQualifierCode)]}),t}const Xi={ReferencedSOPClassUID:"00081150",ReferencedSOPInstanceUID:"00081155"};class ji{referencedSOPClassUID;referencedSOPInstanceUID;toString(){return this.referencedSOPInstanceUID+" (class: "+this.referencedSOPClassUID+")"}}function Zi(e){const t=new ji;return void 0!==e[Xi.ReferencedSOPClassUID]&&(t.referencedSOPClassUID=e[Xi.ReferencedSOPClassUID].value[0]),void 0!==e[Xi.ReferencedSOPInstanceUID]&&(t.referencedSOPInstanceUID=e[Xi.ReferencedSOPInstanceUID].value[0]),t}function _i(e){const t={};return void 0!==e.referencedSOPClassUID&&(t.ReferencedSOPClassUID=e.referencedSOPClassUID),void 0!==e.referencedSOPInstanceUID&&(t.ReferencedSOPInstanceUID=e.referencedSOPInstanceUID),t}const Ki={ReferencedFrameNumber:"00081160",ReferencedSOPSequence:"00081199",ReferencedSegmentNumber:"0062000B"};class Ji{referencedSOPSequence;referencedFrameNumber;referencedSegmentNumber;fiducialUID;toString(){return this.referencedSOPSequence.toString()}}function $i(e){const t={};return void 0!==e.referencedFrameNumber&&(t.ReferencedFrameNumber=e.referencedFrameNumber),void 0!==e.referencedSOPSequence&&(t.ReferencedSOPSequence={value:[_i(e.referencedSOPSequence)]}),void 0!==e.referencedSegmentNumber&&(t.ReferencedSegmentNumber=e.referencedSegmentNumber),t}const er={PixelOriginInterpretation:"00480301",GraphicData:"00700022",GraphicType:"00700023",FiducialUID:"0070031A"},tr="POLYLINE",nr="CIRCLE",ir="ELLIPSE";class rr{graphicData;graphicType;pixelOriginInterpretation;fiducialUID;toString(){return this.graphicType+" {"+this.graphicData+"}"}}function or(e){const t={};return void 0!==e.pixelOriginInterpretation&&(t.PixelOriginInterpretation=e.pixelOriginInterpretation),void 0!==e.graphicData&&(t.GraphicData=e.graphicData),void 0!==e.graphicType&&(t.GraphicType=e.graphicType),void 0!==e.fiducialUID&&(t.FiducialUID=e.fiducialUID),t}function ar(e){const t=new rr;if(e instanceof Wn)t.graphicData=[e.getBegin().getX().toString(),e.getBegin().getY().toString(),e.getEnd().getX().toString(),e.getEnd().getY().toString()],t.graphicType=tr;else if(e instanceof An){const n=e.getCenter(),i=new F(n.getX()+e.getRadius(),n.getY());t.graphicData=[n.getX().toString(),n.getY().toString(),i.getX().toString(),i.getY().toString()],t.graphicType=nr}else if(e instanceof Bn){const n=e.getCenter(),i=e.getA(),r=e.getB();t.graphicData=[(n.getX()-i).toString(),n.getY().toString(),(n.getX()+i).toString(),n.getY().toString(),n.getX().toString(),(n.getY()-r).toString(),n.getX().toString(),(n.getY()+r).toString()],t.graphicType=ir}else if(e instanceof Hn){const n=e.getBegin(),i=e.getEnd();t.graphicData=[n.getX().toString(),n.getY().toString(),n.getX().toString(),i.getY().toString(),i.getX().toString(),i.getY().toString(),i.getX().toString(),n.getY().toString()],t.graphicType=tr}return t}function sr(e){if(e.graphicData.length%2!=0)throw new Error("Expecting even number of coordinates in scroord data");const t=[];for(let n=0;n{this.#Oe.fireEvent(e)};#er(e){return t=>{t.dataid=e,this.#Re(t)}}}class Ir{#tr;setOptions(e){this.#tr=e}#Ki=null;#nr=[];#ir=[];#rr=[];#or=[];#ar(e){let t;const n=e["00080060"];if(void 0!==n){const e=n.value[0];"SEG"===e?t=new fn:"SR"===e&&(t=new yr)}return void 0===t&&void 0!==e["7FE00010"]&&(t=new Tt),t}#sr(e,t){const n=this.#nr[e].getDicomElements(),i=this.#or[e];if(void 0!==i)try{const r=new Cr(n);i instanceof yr?r.annotationGroup=i.create(n):r.image=i.create(n,this.#ir[e],this.#tr.numberOfFiles),this.onloaditem({data:r,source:t,warn:i.getWarning()})}catch(e){this.onerror({error:e,source:t}),this.onloadend({source:t})}}#lr(e,t){this.onprogress({lengthComputable:!0,loaded:100,total:100,index:e,source:t}),this.#sr(e,t),this.onload({source:t}),this.onloadend({source:t})}#cr(e,t,n){const i=this.#nr[e],r={bitsAllocated:i.getDicomElements()["00280100"].value[0],isSigned:1===i.getDicomElements()["00280103"].value[0]},o=i.getDicomElements()["00280011"],a=i.getDicomElements()["00280010"];void 0!==o&&void 0!==a&&(r.sliceSize=o.value[0]*a.value[0]);const s=i.getDicomElements()["00280002"];void 0!==s&&(r.samplesPerPixel=s.value[0]);const 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n=this.#un.getLayerGroupByDivId(t),i=n.getActiveViewLayer().displayToPlanePos(e);(Math.abs(i.getX()-this.#So.getX())>0||Math.abs(i.getY()-this.#So.getY())>0)&&(this.#mo&&this.#Nr.pop(),this.#So=i,this.#mo=!0,this.#Nr.push(this.#So),this.#To(this.#Nr,n))}#Lo(e){if(0!==this.#Nr.length){if(this.#Nr.length===this.#hn.getNPoints()){const t=this.#un.getLayerGroupByDivId(e);this.#Po(this.#Nr,t),this.#vo()}this.#mo=!1}else c.warn("Draw mouseup but no points...")}mousedown=e=>{if(this.#co)return;const t=ti(e),n=gi(e);this.#fo(t,n.groupDivId)};mousemove=e=>{if(!this.#co)return;const t=ti(e),n=gi(e);this.#Io(t,n.groupDivId)};mouseup=e=>{if(!this.#co)return;const t=gi(e);this.#Lo(t.groupDivId)};dblclick=e=>{if(void 0!==this.#hn.getNPoints())return;if(!this.#co)return;if(0===this.#Nr.length)return void c.warn("Draw dblclick but no points...");const t=gi(e),n=this.#un.getLayerGroupByDivId(t.groupDivId);this.#Po(this.#Nr,n),this.#vo()};mouseout=e=>{if(!this.#co)return;const t=gi(e);this.#Lo(t.groupDivId)};touchstart=e=>{if(this.#co)return;const t=ei(e),n=gi(e);this.#fo(t[0],n.groupDivId)};touchmove=e=>{if(!this.#co)return;const t=gi(e),n=ei(e),i=this.#un.getLayerGroupByDivId(t.groupDivId),r=i.getActiveViewLayer().displayToPlanePos(n[0]);(Math.abs(r.getX()-this.#So.getX())>0||Math.abs(r.getY()-this.#So.getY())>0)&&(1!==this.#Nr.length&&this.#Nr.pop(),this.#So=r,this.#Nr.push(this.#So),this.#Nr.length{this.#Nr.push(this.#So)}),this.#hn.getTimeout())),this.#To(this.#Nr,i))};touchend=e=>{this.dblclick(e)};wheel=e=>{this.#go&&this.#Xr.wheel(e)};keydown=e=>{this.#co||(e.context="Draw",this.#un.onKeydown(e));const t=this.#En.getEditorAnnotation();if(("Delete"===e.key||"Backspace"===e.key)&&void 0!==t){const e=this.#un.getActiveLayerGroup().getActiveDrawLayer().getDrawController(),n=new oi(t,e);this.#un.addToUndoStack(n),n.execute(),this.#En.onMouseOutShapeGroup()}if("Escape"===e.key&&null!==this.#do){const e=this.#do.getLayer();this.#do.destroy(),this.#do=null,this.#vo(),e.draw()}};#To(e,t){this.#do&&(this.#do.destroy(),this.#do=null);const n=t.getActiveDrawLayer().getKonvaLayer(),i=t.getActiveViewLayer(),r=i.getViewController();if(this.#po){const e=["#ffff80","#ff80ff","#80ffff","#80ff80","8080ff","ff8080"],t=i.getId(),n=t.substring(t.length-1),r=e[parseInt(n,10)/2];void 0!==r&&this.#lo.setLineColour(r)}const o=new Zn;o.colour=this.#lo.getLineColour(),o.setViewController(r),this.#hn.setAnnotationMathShape(o,e),this.#do=this.#hn.createShapeGroup(o,this.#lo),this.#do.getChildren(qn)[0].listening(!1),n.listening(!1),n.add(this.#do),n.draw()}#Po(e,t){this.#do&&(this.#do.destroy(),this.#do=null);const n=t.getActiveDrawLayer(),i=n.getKonvaLayer(),r=n.getDrawController(),o=t.getActiveViewLayer().getViewController(),a=new Zn;a.colour=this.#lo.getLineColour(),a.id=at(),a.setViewController(o),this.#hn.setAnnotationMathShape(a,e);const s=new ri(a,r);this.#un.addToUndoStack(s),s.execute(),i.listening(!0)}#wo(e){const t=e.getDivId();return void 0===this.#ii[t]&&(this.#ii[t]=()=>{this.#Oo(e)}),this.#ii[t]}activate(e){this.#En.disableAndResetEditor();const t=this.#un.getActiveLayerGroup();if(void 0===t)throw new Error("No active layerGroup to activate draw on");if(this.#Ao(e,t),e)this.#un.addEventListener("positionchange",this.#wo(t));else{const e=t.getActiveDrawLayer();void 0!==e&&e.setShapeHandler(void 0),this.#En.onMouseOutShapeGroup(),this.#un.removeEventListener("positionchange",this.#wo(t))}}#Oo(e){this.#Ao(!0,e)}#Ao(e,t){const n=t.getActiveDrawLayer();if(void 0===n)return;const i=n.getDrawController(),r=n.getCurrentPosGroup().getChildren();e?r.forEach((e=>{if(e instanceof Fn().Group){const t=i.getAnnotation(e.id());this.#En.addShapeListeners(n,e,t)}})):r.forEach((e=>{e instanceof Fn().Group&&this.#En.removeShapeListeners(e)}));const o=n.getNonCurrentPosGroup();for(const e of o)e.getChildren().forEach((e=>{this.#En.removeShapeListeners(e)}));const a=n.getKonvaLayer();0!==r.length&&a.listening(!0),a.draw()}setOptions(e){this.#uo=e}getOptionsType(){return"factory"}setFeatures(e){if(void 0!==e.autoShapeColour&&(this.#po=e.autoShapeColour),void 0!==e.shapeColour&&(this.#lo.setLineColour(e.shapeColour),this.#po=!1),void 0!==e.shapeName){if(!this.hasShape(e.shapeName))throw new Error("Unknown shape: '"+e.shapeName+"'");this.#ho=e.shapeName}void 0!==e.mouseOverCursor&&this.#En.storeMouseOverCursor(e.mouseOverCursor),void 0!==e.withScroll&&(this.#go=e.withScroll)}init(){}getEventNames(){return["annotationupdate"]}addEventListener(e,t){void 0===this.#H[e]&&(this.#H[e]=[]),this.#H[e].push(t)}removeEventListener(e,t){if(void 0!==this.#H[e])for(let n=0;n{if(void 0!==this.#H[e.type])for(let t=0;t{e.context="Filter",this.#un.onKeydown(e)};getEventNames(){return["filterrun","filterundo"]}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};getSelectedFilter(){return this.#xo}setFeatures(e){if(void 0!==e.filterName){if(!this.hasFilter(e.filterName))throw new Error("Unknown filter: '"+e.filterName+"'");this.#xo&&this.#xo.activate(!1),this.#xo=this.#bo[e.filterName],this.#xo.activate(!0)}if(void 0!==e.run&&e.run){let t={};void 0!==e.runArgs&&(t=e.runArgs),this.getSelectedFilter().run(t)}}getFilterList(){return this.#bo}hasFilter(e){return this.#bo[e]}},Floodfill:class{#un;constructor(e){this.#un=e}#Ro=5;#Fo=0;#Eo=2e3;#qo=null;#Uo=null;#Mo=10;#Qo=null;#Wr=!1;#Vo=null;#No=null;#Bo;#Go=null;#ko=[];#Ho=!1;#zo;#lo=new xn;#Oe=new Ze;setExtend(e){this.#Ho=e}getExtend(){return this.#Ho}#Wo=(e,t)=>{const n=this.#un.getLayerGroupByDivId(t).getActiveViewLayer().displayToPlaneIndex(e);return{x:n.get(0),y:n.get(1)}};#Yo(e,t,n){this.#ko=[];const i={data:this.#qo.data,width:this.#qo.width,height:this.#qo.height,bytes:4};this.#Uo=Gr().floodFill(i,e.x,e.y,t),this.#Uo=Gr().gaussBlurOnlyBorder(this.#Uo,this.#Ro);let r=Gr().traceContours(this.#Uo);if(r=Gr().simplifyContours(r,this.#Fo,this.#Eo),r.length>0&&r[0].points[0].x){if(n)return r[0].points;for(let e=0,t=r[0].points.length;eo&&this.#Xo(this.#Bo,a,n);t--)i.decrementIndex(2);i.setCurrentPosition(r)}modifyThreshold(e,t){if(t||!this.#No)throw"No shape found";t=this.#No.getChildren((function(e){return"shape"===e.name()}))[0],clearTimeout(this.#zo),this.#zo=setTimeout((()=>{if(this.#Go=this.#Yo(this.#Bo,e,!0),!this.#Go)return!1;const n=[];for(let e=0,t=this.#Go.length;e{const t=ti(e),n=gi(e);this.#jr(t,n.groupDivId)};mousemove=e=>{const t=ti(e),n=gi(e);this.#Zr(t,n.groupDivId)};mouseup=e=>{this.#_r()};mouseout=e=>{this.#_r()};touchstart=e=>{const t=ei(e),n=gi(e);this.#jr(t[0],n.groupDivId)};touchmove=e=>{const t=ei(e),n=gi(e);this.#Zr(t[0],n.groupDivId)};touchend=e=>{this.#_r()};keydown=e=>{e.context="Floodfill",this.#un.onKeydown(e)};activate(e){e&&(this.#lo.setBaseScale(this.#un.getBaseScale()),this.setFeatures({shapeColour:this.#lo.getLineColour()}))}init(){}getEventNames(){return["drawcreate","drawchange","drawmove","drawdelete"]}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};setFeatures(e){void 0!==e.shapeColour&&this.#lo.setLineColour(e.shapeColour)}},Livewire:class{#un;constructor(e){this.#un=e}#Wr=!1;#Yr;#Vo=null;#No=null;#lo=new xn;#jo=new kr;#Zo=new kr;#ko=[];#_o=5;#Oe=new Ze;#Ko(e){const t=e.get(1);for(let e=0;e{const t=ti(e),n=gi(e);this.#jr(t,n.groupDivId)};mousemove=e=>{const t=ti(e),n=gi(e);this.#Zr(t,n.groupDivId)};mouseup(e){}mouseout=e=>{};dblclick=e=>{this.#ea()};touchstart=e=>{const t=ei(e),n=gi(e);this.#jr(t[0],n.groupDivId)};touchmove=e=>{const t=ei(e),n=gi(e);this.#Zr(t[0],n.groupDivId)};touchend=e=>{};keydown=e=>{e.context="Livewire",this.#un.onKeydown(e)};activate(e){if(e){const e=this.#un.getActiveLayerGroup().getActiveViewLayer(),t=e.getViewController().getImageSize();this.#$o.setDimensions(t.get(0),t.get(1)),this.#$o.setData(e.getImageData().data),this.#lo.setBaseScale(this.#un.getBaseScale()),this.setFeatures({shapeColour:this.#lo.getLineColour()})}}init(){}getEventNames(){return["drawcreate","drawchange","drawmove","drawdelete"]}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)};setFeatures(e){void 0!==e.shapeColour&&this.#lo.setLineColour(e.shapeColour)}}},$r={draw:{ArrowFactory:class{getGroupName(){return"line-group"}getNPoints(){return 2}getTimeout(){return 0}isFactoryGroup(e){return this.getGroupName()===e.name()}create(e,t,n){const i=new Wn(e[0],e[1]),r=new(Fn().Line)({points:[i.getBegin().getX(),i.getBegin().getY(),i.getEnd().getX(),i.getEnd().getY()],stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape"}),o=t.applyZoomScale(10).x,a=Xn(i,e[0],o),s=Xn(i,e[1],o);r.hitFunc((function(e){e.beginPath(),e.moveTo(a.getBegin().getX(),a.getBegin().getY()),e.lineTo(a.getEnd().getX(),a.getEnd().getY()),e.lineTo(s.getEnd().getX(),s.getEnd().getY()),e.lineTo(s.getBegin().getX(),s.getBegin().getY()),e.closePath(),e.fillStrokeShape(r)}));const l=new F(i.getBegin().getX(),i.getBegin().getY()-10),c=new Wn(i.getBegin(),l),u=Yn(i,c),d=u*Math.PI/180,h=Math.abs(t.applyZoomScale(8).x),S=new(Fn().RegularPolygon)({x:i.getBegin().getX()+h*Math.sin(d),y:i.getBegin().getY()+h*Math.cos(d),sides:3,radius:h,rotation:-u,fill:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,name:"shape-triangle"}),g=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"});let p="";const m=n.getModality();p=void 0!==bn.labelText.arrow[m]?bn.labelText.arrow[m]:bn.labelText.arrow["*"],g.setText(p),g.meta={textExpr:p,quantification:{}};const f=i.getBegin().getX()>i.getEnd().getX()?0:-1,D=i.getBegin().getY()>i.getEnd().getY()?-1:0,y=new(Fn().Label)({x:i.getEnd().getX()+f*g.width(),y:i.getEnd().getY()+D*t.applyZoomScale(15).y,scale:t.applyZoomScale(1),visible:0!==p.length,name:"label"});y.add(g),y.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()}));const C=new(Fn().Group);return C.name(this.getGroupName()),C.add(y),C.add(S),C.add(r),C.visible(!0),C}getAnchors(e,t){const n=e.points(),i=[];return i.push(Qn(n[0]+e.x(),n[1]+e.y(),"begin",t)),i.push(Qn(n[2]+e.x(),n[3]+e.y(),"end",t)),i}update(e,t,n){const i=e.getParent(),r=i.getChildren((function(e){return"shape"===e.name()}))[0];if(!(r instanceof Fn().Line))return;const o=i.getChildren((function(e){return"shape-triangle"===e.name()}))[0];if(!(o instanceof Fn().RegularPolygon))return;const a=i.getChildren((function(e){return"label"===e.name()}))[0];if(!(a instanceof Fn().Label))return;const s=i.getChildren((function(e){return"begin"===e.id()}))[0],l=i.getChildren((function(e){return"end"===e.id()}))[0];switch(e.id()){case"begin":s.x(e.x()),s.y(e.y());break;case"end":l.x(e.x()),l.y(e.y())}const c=s.x()-r.x(),u=s.y()-r.y(),d=l.x()-r.x(),h=l.y()-r.y();r.points([c,u,d,h]);const S=new F(s.x(),s.y()),g=new F(l.x(),l.y()),p=new Wn(S,g),m=new F(c,u),f=new F(d,h),D=t.applyZoomScale(10).x,y=Xn(p,m,D),C=Xn(p,f,D);r.hitFunc((function(e){e.beginPath(),e.moveTo(y.getBegin().getX(),y.getBegin().getY()),e.lineTo(y.getEnd().getX(),y.getEnd().getY()),e.lineTo(C.getEnd().getX(),C.getEnd().getY()),e.lineTo(C.getBegin().getX(),C.getBegin().getY()),e.closePath(),e.fillStrokeShape(r)}));const v=new F(p.getBegin().getX(),p.getBegin().getY()-10),I=new Wn(p.getBegin(),v),T=Yn(p,I),L=T*Math.PI/180;o.x(p.getBegin().getX()+o.radius()*Math.sin(L)),o.y(p.getBegin().getY()+o.radius()*Math.cos(L)),o.rotation(-T);const P=a.getText();P.setText(P.meta.textExpr);const w=p.getBegin().getX()>p.getEnd().getX()?0:-1,O=p.getBegin().getY()>p.getEnd().getY()?-1:0,A={x:p.getEnd().getX()+w*P.width(),y:p.getEnd().getY()+O*t.applyZoomScale(15).y};a.position(A)}},CircleFactory:Nn,EllipseFactory:kn,FreeHandFactory:class{getGroupName(){return"freeHand-group"}getNPoints(){}getTimeout(){return 25}isFactoryGroup(e){return this.getGroupName()===e.name()}create(e,t,n){const i=[];for(let t=0;t180&&(s=360-s,l+=s);const c=new(Fn().Text)({fontSize:t.getFontSize(),fontFamily:t.getFontFamily(),fill:t.getLineColour(),padding:t.getTextPadding(),shadowColor:t.getShadowLineColour(),shadowOffset:t.getShadowOffset(),name:"text"});let u="";const d=n.getModality();u=void 0!==bn.labelText.protractor[d]?bn.labelText.protractor[d]:bn.labelText.protractor["*"];const h={angle:{value:s,unit:On.t("unit.degree")}};c.setText(V(u,h)),c.meta={textExpr:u,quantification:h};const S=(i.getMidpoint().getX()+r.getMidpoint().getX())/2,g=(i.getMidpoint().getY()+r.getMidpoint().getY())/2,p=new(Fn().Label)({x:S,y:g-t.applyZoomScale(15).y,scale:t.applyZoomScale(1),visible:0!==u.length,name:"label"});p.add(c),p.add(new(Fn().Tag)({fill:t.getLineColour(),opacity:t.getTagOpacity()}));const m=33*Math.min(i.getLength(),r.getLength())/100,f=new(Fn().Arc)({innerRadius:m,outerRadius:m,stroke:t.getLineColour(),strokeWidth:t.getStrokeWidth(),strokeScaleEnabled:!1,angle:s,rotation:-l,x:e[1].getX(),y:e[1].getY(),name:"shape-arc"});a.add(p),a.add(f)}return a.add(o),a.visible(!0),a}getAnchors(e,t){const n=e.points(),i=[];return i.push(Qn(n[0]+e.x(),n[1]+e.y(),"begin",t)),i.push(Qn(n[2]+e.x(),n[3]+e.y(),"mid",t)),i.push(Qn(n[4]+e.x(),n[5]+e.y(),"end",t)),i}update(e,t,n){const i=e.getParent(),r=i.getChildren((function(e){return"shape"===e.name()}))[0];if(!(r instanceof Fn().Line))return;const o=i.getChildren((function(e){return"label"===e.name()}))[0];if(!(o instanceof Fn().Label))return;const a=i.getChildren((function(e){return"shape-arc"===e.name()}))[0];if(!(a instanceof Fn().Arc))return;const s=i.getChildren((function(e){return"begin"===e.id()}))[0],l=i.getChildren((function(e){return"mid"===e.id()}))[0],c=i.getChildren((function(e){return"end"===e.id()}))[0];switch(e.id()){case"begin":s.x(e.x()),s.y(e.y());break;case"mid":l.x(e.x()),l.y(e.y());break;case"end":c.x(e.x()),c.y(e.y())}const u=s.x()-r.x(),d=s.y()-r.y(),h=l.x()-r.x(),S=l.y()-r.y(),g=c.x()-r.x(),p=c.y()-r.y();r.points([u,d,h,S,g,p]),r.hitFunc((function(e){e.beginPath(),e.moveTo(u,d),e.lineTo(h,S),e.lineTo(g,p),e.closePath(),e.fillStrokeShape(r)}));const m=new F(s.x(),s.y()),f=new F(l.x(),l.y()),D=new F(c.x(),c.y()),y=new Wn(m,f),C=new Wn(f,D);let v=Yn(y,C),I=y.getInclination();v>180&&(v=360-v,I+=v);const T=o.getText(),L=T.meta,P={angle:{value:v,unit:On.t("unit.degree")}};T.setText(V(L.textExpr,P)),L.quantification=P;const w={x:(y.getMidpoint().getX()+C.getMidpoint().getX())/2,y:(y.getMidpoint().getY()+C.getMidpoint().getY())/2-t.applyZoomScale(15).y};o.position(w);const O=33*Math.min(y.getLength(),C.getLength())/100;a.innerRadius(O),a.outerRadius(O),a.angle(v),a.rotation(-I);const A={x:l.x(),y:l.y()};a.position(A)}},RectangleFactory:zn,RoiFactory:Nr,RulerFactory:jn},filter:{Threshold:class{#un;constructor(e){this.#un=e}#zr=new Xr;#ta=!0;#Oe=new Ze;activate(e){e&&(this.#ta=!0)}init(){}run(e){if(void 0===e.dataId)throw new Error("No dataId to run threshod filter on.");if(this.#zr.setMin(e.min),this.#zr.setMax(e.max),this.#ta){const t=this.#un.getData(e.dataId).image;this.#zr.setOriginalImage(t),this.#ta=!1}const t=new _r(this.#zr,e.dataId,this.#un);t.onExecute=this.#Re,t.onUndo=this.#Re,t.execute(),this.#un.addToUndoStack(t)}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}},Sobel:class{#un;constructor(e){this.#un=e}#Oe=new Ze;activate(e){}init(){}run(e){if(void 0===e.dataId)throw new Error("No dataId to run sobel filter on.");const t=new Zr,n=this.#un.getData(e.dataId).image;t.setOriginalImage(n);const i=new _r(t,e.dataId,this.#un);i.onExecute=this.#Re,i.onUndo=this.#Re,i.execute(),this.#un.addToUndoStack(i)}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}},Sharpen:class{#un;constructor(e){this.#un=e}#Oe=new Ze;activate(e){}init(){}run(e){if(void 0===e.dataId)throw new Error("No dataId to run sharpen filter on.");const t=new jr,n=this.#un.getData(e.dataId).image;t.setOriginalImage(n);const i=new _r(t,e.dataId,this.#un);i.onExecute=this.#Re,i.onUndo=this.#Re,i.execute(),this.#un.addToUndoStack(i)}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}#Re=e=>{this.#Oe.fireEvent(e)}}}};class eo{divId;orientation;colourMap;opacity;wlPresetName;windowCenter;windowWidth;constructor(e){this.divId=e}}class to{options;constructor(e){this.options=e}}class no{dataViewConfigs;tools;binders;viewOnFirstLoadItem;defaultCharacterSet;overlayConfig;rootDocument;constructor(e){this.dataViewConfigs=e}}class io{#tr=null;#na=null;#ia=null;#ra=null;#oa=null;#aa=null;#lo=new xn;#sa={};#Oe=new Ze;getData(e){return this.#na.get(e)}setImage(e,t){this.#na.setImage(e,t)}addData(e){const t=this.#na.getNextDataId();return this.#na.add(t,e),t}getMetaData(e){let t;return void 0!==this.#na.get(e)&&(t=this.#na.get(e).meta),t}getDataIds(){return this.#na.getDataIds()}getDataIdsFromSopUids(e){return this.#na.getDataIdsFromSopUids(e)}canScroll(){return this.#oa.getActiveLayerGroup().getActiveViewLayer().getViewController().canScroll()}canWindowLevel(){return this.#oa.getActiveLayerGroup().getActiveViewLayer().getViewController().canWindowLevel()}getAddedScale(){return this.#oa.getActiveLayerGroup().getAddedScale()}getBaseScale(){return this.#oa.getActiveLayerGroup().getBaseScale()}getOffset(){return this.#oa.getActiveLayerGroup().getOffset()}getToolboxController(){return this.#ia}getActiveLayerGroup(){return this.#oa.getActiveLayerGroup()}setActiveLayerGroup(e){this.#oa.setActiveLayerGroup(e)}getViewLayersByDataId(e){return this.#oa.getViewLayersByDataId(e)}getDrawLayersByDataId(e){return this.#oa.getDrawLayersByDataId(e)}getLayerGroupByDivId(e){return this.#oa.getLayerGroupByDivId(e)}getNumberOfLayerGroups(){return this.#oa.getNumberOfLayerGroups()}getStyle(){return this.#lo}addToUndoStack=e=>{null!==this.#aa&&this.#aa.add(e)};init(e){if(this.#tr=e,void 0===this.#tr.viewOnFirstLoadItem&&(this.#tr.viewOnFirstLoadItem=!0),void 0===this.#tr.dataViewConfigs&&(this.#tr.dataViewConfigs={}),void 0===this.#tr.rootDocument&&(this.#tr.rootDocument=document),this.#aa=new Oi,this.#aa.addEventListener("undoadd",this.#Re),this.#aa.addEventListener("undo",this.#Re),this.#aa.addEventListener("redo",this.#Re),void 0!==this.#tr.tools){const e={},t=Object.keys(this.#tr.tools);for(let n=0;n{this.#pa(e.dataid)})),this.#na.addEventListener("dataremove",(e=>{this.#ma(e.dataid)})),this.#oa=new yi,void 0!==this.#tr.binders&&this.#oa.setBinders(this.#tr.binders)}#pa(e){const t=this.getData(e);void 0!==t.annotationGroup&&(t.annotationGroup.addEventListener("annotationadd",this.#Re),t.annotationGroup.addEventListener("annotationupdate",this.#Re),t.annotationGroup.addEventListener("annotationremove",this.#Re))}#ma(e){const t=this.getData(e);void 0!==t.annotationGroup&&(t.annotationGroup.removeEventListener("annotationadd",this.#Re),t.annotationGroup.removeEventListener("annotationupdate",this.#Re),t.annotationGroup.removeEventListener("annotationremove",this.#Re))}reset(){this.#oa.empty(),this.#sa={},this.#aa&&(this.#aa=new Oi,this.#aa.addEventListener("undoadd",this.#Re),this.#aa.addEventListener("undo",this.#Re),this.#aa.addEventListener("redo",this.#Re))}resetLayout(){this.#oa.reset(),this.#oa.draw()}addEventListener(e,t){this.#Oe.add(e,t)}removeEventListener(e,t){this.#Oe.remove(e,t)}loadFiles=e=>{const t=this.#na.getNextDataId();0!==e.length?this.#ra.loadFiles(e,t):c.warn("Ignoring empty input file list.")};loadURLs=(e,t)=>{const n=this.#na.getNextDataId();0!==e.length?this.#ra.loadURLs(e,n,t):c.warn("Ignoring empty input url list.")};loadFromUri=(e,t)=>{const n=function(e){const t=wi(e);return 0===Object.keys(t).length?null:t.query}(e),i=()=>{this.removeEventListener("loadend",i),this.loadURLs([n.state])};n&&void 0!==n.input&&(void 0!==n.state&&this.addEventListener("loadend",i),function(e,t,n){e.type&&"manifest"===e.type?function(e,t){let n="";"/"===e.input[0]&&(n=window.location.protocol+"//"+window.location.host),n+=e.input;const i=new XMLHttpRequest;i.open("GET",decodeURIComponent(n),!0),i.responseType="document",i.onload=function(n){t(function(e,t){const n=[],i=e.getElementsByTagName("wado_query")[0].getAttribute("wadoURL")+"?requestType=WADO&contentType=application/dicom&",r=e.getElementsByTagName("Patient");r.length>1&&c.warn("More than one patient, loading first one.");const o=r[0].getElementsByTagName("Study");o.length>1&&c.warn("More than one study, loading first one.");const a=o[0].getAttribute("StudyInstanceUID"),s=o[0].getElementsByTagName("Series");s.length>1&&c.warn("More than one series, loading first one.");const l=s[0].getAttribute("SeriesInstanceUID"),u=s[0].getElementsByTagName("Instance");let d=u.length;t{const t=this.#na.getNextDataId();this.#ra.loadImageObject(e,t)};abortAllLoads(){const e=this.#ra.getLoadingDataIds();for(const t of e)this.abortLoad(t)}abortLoad(e){this.#ra.abort(e),this.#na.remove(e),this.#oa.removeLayersByDataId(e)}fitToContainer(){this.#oa.fitToContainer()}initWLDisplay(){this.#oa.getActiveLayerGroup().getActiveViewLayer().getViewController().initialise()}setImageSmoothing(e){this.#oa.setImageSmoothing(e),this.#oa.draw()}getViewConfigs(e,t){if(null===this.#tr.dataViewConfigs||void 0===this.#tr.dataViewConfigs)throw new Error("No available data view configuration");let n=[];return void 0!==this.#tr.dataViewConfigs[e]?n=this.#tr.dataViewConfigs[e]:t||void 0===this.#tr.dataViewConfigs["*"]||(n=this.#tr.dataViewConfigs["*"]),n}getViewConfig(e,t,n){return this.getViewConfigs(e,n).find((function(e){return e.divId===t}))}getDataViewConfigs(){return this.#tr.dataViewConfigs}setDataViewConfigs(e){this.#oa.empty(),this.#tr.dataViewConfigs=e,this.#fa(e)}addDataViewConfig(e,t){const n=this.#tr.dataViewConfigs;if(void 0===n[e]&&(n[e]=[]),-1!==n[e].findIndex((function(e){return e.divId===t.divId})))throw new Error("Duplicate view config for data "+e+" and div "+t.divId);this.#tr.dataViewConfigs[e].push(t),void 0===this.#oa.getLayerGroupByDivId(t.divId)&&this.#Da(t),void 0!==this.#na.get(e)&&this.render(e,[t])}removeDataViewConfig(e,t){const n=this.#tr.dataViewConfigs;if(void 0===n[e])return;const i=n[e].findIndex((function(e){return e.divId===t}));if(-1!==i&&(n[e].splice(i,1),0===n[e].length&&delete n[e],void 0!==this.#na.get(e))){const n=this.#oa.getLayerGroupByDivId(t);if(void 0!==n){const t=n.getViewLayersByDataId(e);1===t.length&&n.removeLayer(t[0]);const i=n.getDrawLayersByDataId(e);if(1===i.length&&n.removeLayer(i[0]),0===t.length&&0===i.length)throw new Error("Expected one layer, got none");0===n.getNumberOfLayers()&&this.#oa.removeLayerGroup(n)}}}updateDataViewConfig(e,t,n){const i=this.#tr.dataViewConfigs;if(void 0===i[e])throw new Error("No config for dataId: "+e);const r=i[e].findIndex((function(e){return e.divId===t}));if(-1===r)throw new Error("No config for dataId: "+e+" and divId: "+t);const o=i[e][r];for(const e in n)o[e]=n[e];const a=this.#oa.getLayerGroupByDivId(o.divId);if(void 0!==a){const t=a.getViewLayersByDataId(e);1===t.length&&a.removeLayer(t[0]);const n=a.getDrawLayersByDataId(e);if(1===n.length&&a.removeLayer(n[0]),0===t.length&&0===n.length)throw new Error("Expected one layer, got none")}void 0!==this.#na.get(e)&&this.render(e,[o])}#fa(e){const t=Object.keys(e),n=[];for(let i=0;i{this.fitToContainer()};onKeydown=e=>{this.#Re(e)};defaultOnKeydown=e=>{if(e.ctrlKey)if(e.shiftKey){const t=this.#oa.getActiveLayerGroup(),n=t.getActiveViewLayer().getViewController();"ArrowLeft"===e.key?n.moreThanOne(3)&&n.decrementIndex(3):"ArrowUp"===e.key?t.canScroll()&&n.incrementScrollIndex():"ArrowRight"===e.key?t.moreThanOne(3)&&n.incrementIndex(3):"ArrowDown"===e.key&&t.canScroll()&&n.decrementScrollIndex()}else if("y"===e.key)this.#aa.redo();else if("z"===e.key)this.#aa.undo();else if(" "===e.key)for(let e=0;e{this.#Oe.fireEvent(e)};#la=e=>{void 0!==this.#tr.overlayConfig&&(this.#sa[e.dataid]=new Ur(this,e.dataid,this.#tr.overlayConfig)),e.type="loadstart",this.#Re(e)};#ca=e=>{e.type="loadprogress",this.#Re(e)};#ua=e=>{void 0===e.data&&c.error("Missing loaditem event data."),void 0===e.loadtype&&c.error("Missing loaditem event load type.");const t=e.isfirstitem;let n=null;"image"===e.loadtype?(t?this.#na.add(e.dataid,e.data):this.#na.update(e.dataid,e.data),n=e.data.meta):"state"===e.loadtype&&(this.applyJsonState(e.data),n="state"),this.#Re({type:"loaditem",data:n,source:e.source,loadtype:e.loadtype,dataid:e.dataid,isfirstitem:e.isfirstitem,warn:e.warn}),void 0!==this.#sa&&void 0!==this.#sa[e.dataid]&&this.#sa[e.dataid].addItemMeta(n),"image"===e.loadtype&&0!==this.getViewConfigs(e.dataid).length&&t&&this.#tr.viewOnFirstLoadItem&&this.render(e.dataid)};#da=e=>{e.type="load",this.#Re(e)};#ha=e=>{e.type="loadend",this.#Re(e)};#Sa=e=>{void 0===e.type&&(e.type="error"),this.#Re(e)};#ga=e=>{void 0===e.type&&(e.type="abort"),this.#Re(e)};#ya(e){e.addEventListener("zoomchange",this.#Re),e.addEventListener("offsetchange",this.#Re),e.addEventListener("renderstart",this.#Re),e.addEventListener("renderend",this.#Re);for(let t=0;t{const t=Si(e.srclayerid).groupDivId,n=this.getViewConfig(e.dataid,t,!0);void 0!==n&&(n.windowCenter=void 0,n.windowWidth=void 0,n.wlPresetName=void 0,2===e.value.length&&(n.windowCenter=e.value[0],n.windowWidth=e.value[1]),3===e.value.length&&(n.wlPresetName=e.value[2]))})),e.addEventListener("opacitychange",(e=>{const t=Si(e.srclayerid).groupDivId,n=this.getViewConfig(e.dataid,t,!0);void 0!==n&&(n.opacity=e.value[0])})),e.addEventListener("colourmapchange",(e=>{const t=Si(e.srclayerid).groupDivId,n=this.getViewConfig(e.dataid,t,!0);void 0!==n&&(n.colourMap=e.value[0])}))}#Ca(e,t){const n=this.#na.get(e);if(!n)throw new Error("Cannot initialise layer with missing data, id: "+e);const i=this.#oa.getLayerGroupByDivId(t.divId);if(!i)throw new Error("Cannot initialise layer with missing group, id: "+t.divId);const r=n.image.getGeometry();this.#oa.unbindLayerGroups();const o=(new vn).create(n.meta,n.image),a=pi(r.getOrientation(),we(t.orientation));o.setOrientation(a),"SEG"===n.image.getMeta().Modality&&o.setAlphaFunction((function(e){return 0===e[0]&&0===e[1]&&0===e[2]?0:255}));const s=0===i.getNumberOfViewLayers();let l=1;void 0!==t.opacity?l=t.opacity:s||(l=.5);const c=i.addViewLayer();c.setView(o,e);const d=r.getSize(a).get2D(),h=r.getSpacing(a).get2D();c.initialise(d,h,l);const S=c.getViewController();if(void 0!==t.wlPresetName)S.setWindowLevelPreset(t.wlPresetName);else if(void 0!==t.windowCenter&&void 0!==t.windowWidth){const e=new u(t.windowCenter,t.windowWidth);S.setWindowLevel(e)}void 0!==t.colourMap?S.setColourMap(t.colourMap):s||("PT"===n.image.getMeta().Modality?S.setColourMap("hot"):S.setColourMap("rainbow")),this.#na.addEventListener("dataimageset",c.onimageset);const g=[S.getCurrentIndex().getValues(),S.getCurrentPosition().getValues()];i.updateLayersToPositionChange({value:g,srclayerid:c.getId()}),this.#oa.fitToContainer(),c.setOffset(i.getOffset());const p=this.#va(r.getOrientation(),t.orientation);if(this.#Ia(p,c),s)c.setScale(i.getScale());else{const e=i.getBaseViewLayer();c.initScale(i.getScale(),e.getAbsoluteZoomOffset())}this.#oa.bindLayerGroups(),this.#ia&&this.#ia.bindLayerGroup(i,c),this.#Re({type:"viewlayeradd",layerid:c.getId(),layergroupid:i.getDivId(),dataid:e}),s&&this.#ia&&this.#ia.init()}addDrawLayer(e,t){const n=this.#oa.getLayerGroupByDivId(t.divId);if(!n)throw new Error("Cannot initialise layer with missing group, id: "+t.divId);const i=this.#na.get(e);if(!i)throw new Error("Cannot initialise layer with missing data, id: "+e);const r=i.annotationGroup.getMetaValue("StudyInstanceUID"),o=n.searchViewLayers({StudyInstanceUID:r});if(0===o.length)return void console.warn("No loaded data that matches the measurement study UID");const a=o[0],s=a.getDataId(),l=a.getViewController();i.annotationGroup.setViewController(l);const c=this.#na.get(s);if(!c)throw new Error("Cannot initialise layer with missing reference data, id: "+s);const u=c.image.getGeometry(),d=pi(u.getOrientation(),we(t.orientation)),h=u.getSize(d).get2D(),S=u.getSpacing(d).get2D(),g=n.addDrawLayer();g.initialise(h,S);const p=new Pn(u.getRealSpacing(),u.getOrientation(),d);g.setPlaneHelper(p),this.#oa.fitToContainer();const m=this.#va(u.getOrientation(),t.orientation);this.#Ia(m,g),g.setScale(n.getScale()),g.setAnnotationGroup(i.annotationGroup,e,this.addToUndoStack),g.setCurrentPosition(l.getCurrentPosition(),l.getCurrentIndex()),this.#Re({type:"drawlayeradd",layerid:g.getId(),layergroupid:n.getDivId(),dataid:e})}#va(e,t){const n=Oe(e.asOneAndZeros());if(void 0===n)throw new Error("Unsupported undefined orientation code");const i=void 0===t,r=!i&&t===Pe.Axial,o=!i&&t===Pe.Coronal,a=!i&&t===Pe.Sagittal,s={x:!1,y:!1},l={x:!1,y:!1,z:!1};return"LPS"===n?(o||a)&&(l.z=!0,s.y=!0):"LAI"===n?i||r?s.y=!0:o?l.z=!0:a&&(l.z=!0,s.x=!0):"RPI"===n?i||r?s.x=!0:o?(l.z=!0,s.x=!0):a&&(l.z=!0):"RAS"===n?(s.x=!0,s.y=!0,(o||a)&&(l.z=!0)):"LSA"===n?(s.y=!0,i||o?l.z=!0:r?l.y=!0:a&&(s.x=!0,l.y=!0,l.z=!0)):"RSP"===n?i||o?(s.x=!0,s.y=!0,l.x=!0,l.z=!0):r?(s.x=!0,l.x=!0):a&&(s.y=!0,l.z=!0):"RIA"===n?(s.x=!0,i||o?l.x=!0:r?(s.y=!0,l.x=!0,l.y=!0):a&&(l.y=!0)):"PSL"===n?(l.z=!0,(i||a||o)&&(s.y=!0)):"PIR"===n?(l.z=!0,(r||o)&&(s.x=!0)):"ASR"===n?(s.x=!0,s.y=!0,(i||a||o)&&(l.z=!0)):"AIL"===n?i||a?(s.x=!0,l.z=!0):r?s.y=!0:o&&(l.z=!0):c.warn("Unsupported orientation code: "+n+", display could be incorrect"),{scale:l,offset:s}}#Ia(e,t){e.offset.x&&t.addFlipOffsetX(),e.offset.y&&t.addFlipOffsetY(),e.scale.x&&t.flipScaleX(),e.scale.y&&t.flipScaleY(),e.scale.z&&t.flipScaleZ()}}class ro{#Uo;#Ta;constructor(e){this.#Uo=e;const t=e.getMeta();void 0===t.custom&&(t.custom={}),void 0===t.custom.segments&&(t.custom.segments=[]),this.#Ta=t.custom.segments}#La(e){return this.#Ta.findIndex((function(t){return t.number===e}))}hasSegment(e){return-1!==this.#La(e)}maskHasSegments(e){const t=[],n=[];for(let i=0;ie.number===this.#Pa.number))}execute(){0!==this.#wa.length&&(void 0!==this.#Pa.displayRGBValue?this.#Uo.setAtOffsets(this.#wa,C):this.#Uo.setAtOffsets(this.#wa,0)),new ro(this.#Uo).removeSegment(this.#Pa.number),this.#sn||this.onExecute({type:"masksegmentdelete",segmentnumber:this.#Pa.number})}undo(){0!==this.#wa.length&&(void 0!==this.#Pa.displayRGBValue?this.#Uo.setAtOffsets(this.#wa,this.#Pa.displayRGBValue):this.#Uo.setAtOffsets(this.#wa,this.#Pa.displayValue)),new ro(this.#Uo).addSegment(this.#Pa),this.onUndo({type:"masksegmentredraw",segmentnumber:this.#Pa.number})}onExecute(e){}onUndo(e){}}class ao{#Uo;#Pa;#Oa;#Aa;#sn;#wa;constructor(e,t,n,i){this.#Uo=e,this.#Pa=t,this.#Oa=n,this.#sn=void 0!==i&&i,void 0!==t.displayRGBValue?this.#Aa=t.displayRGBValue:this.#Aa=t.displayValue,this.#wa=e.getOffsets(this.#Aa)}getName(){return"Change-segment-colour"}isValid(){return 0!==this.#wa.length}execute(){this.#Uo.setAtOffsets(this.#wa,this.#Oa),"number"==typeof this.#Oa?this.#Pa.displayValue=this.#Oa:this.#Pa.displayRGBValue=this.#Oa,this.#sn||this.onExecute({type:"changemasksegmentcolour",segmentnumber:this.#Pa.number,value:[this.#Oa]})}undo(){this.#Uo.setAtOffsets(this.#wa,this.#Aa),"number"==typeof this.#Aa?this.#Pa.displayValue=this.#Aa:this.#Pa.displayRGBValue=this.#Aa,this.onUndo({type:"changemasksegmentcolour",segmentnumber:this.#Pa.number,value:[this.#Aa]})}onExecute(e){}onUndo(e){}}class so{#ba=[];#xa;#Ra(e){return this.#ba.findIndex((function(t){return t.number===e}))}isHidden(e){return-1!==this.#Ra(e)}addToHidden(e){this.isHidden(e.number)?c.warn("Not hidding segment, it is allready in the hidden list: "+e.number):(this.#ba.push(e),this.#xa=void 0!==e.displayValue)}removeFromHidden(e){const t=this.#Ra(e);-1!==t?this.#ba.splice(t,1):c.warn("Cannot remove segment, it is not in the hidden list: "+e)}getAlphaFunc(){const e=[];this.#xa?e[0]=0:e[0]={r:0,g:0,b:0};for(const t of this.#ba)this.#xa?e.push(t.displayValue):e.push(t.displayRGBValue);let t;return t=this.#xa?function(t){for(let n=0;n= this.length()) {\n throw new Error('Non valid dimension for toStringId.');\n }\n }\n let res = '';\n for (let i = 0; i < dims.length; ++i) {\n if (i !== 0) {\n res += '_';\n }\n res += '#' + dims[i] + '-' + this.get(dims[i]);\n }\n return res;\n }\n\n} // Index class\n\n/**\n * Get an index with values set to 0 and the input size.\n *\n * @param {number} size The size of the index.\n * @returns {Index} The zero index.\n */\nexport function getZeroIndex(size) {\n const values = new Array(size);\n values.fill(0);\n return new Index(values);\n}\n\n/**\n * Get an index from an id string in the form of: '#0-1_#1-2'\n * (result of index.toStringId).\n *\n * @param {string} inputStr The input string.\n * @returns {Index} The corresponding index (minimum size is 3D).\n */\nexport function getIndexFromStringId(inputStr) {\n // split ids\n const strIds = inputStr.split('_');\n // get the size of the index (minimum 3)\n let numberOfDims = 3;\n let dim;\n for (let i = 0; i < strIds.length; ++i) {\n // expecting dim < 10\n dim = parseInt(strIds[i].substring(1, 2), 10);\n // dim is zero based\n if (dim + 1 > numberOfDims) {\n numberOfDims = dim + 1;\n }\n }\n // default values\n const values = new Array(numberOfDims);\n values.fill(0);\n // get other values from the input string\n for (let j = 0; j < strIds.length; ++j) {\n // expecting dim < 10\n dim = parseInt(strIds[j].substring(1, 2), 10);\n const value = parseInt(strIds[j].substring(3), 10);\n values[dim] = value;\n }\n\n return new Index(values);\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {RescaleSlopeAndIntercept} from './rsi';\n/* eslint-enable no-unused-vars */\n\n/**\n * Modality LUT class: compensates for any modality-specific presentation.\n * Typically consists of a rescale slope and intercept to\n * rescale the data range.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.11.html}.\n */\nexport class ModalityLut {\n\n /**\n * The rescale slope.\n *\n * @type {RescaleSlopeAndIntercept}\n */\n #rsi;\n\n /**\n * Is the RSI an identity one.\n *\n * @type {boolean}\n */\n #isIdRsi;\n\n /**\n * The size of the LUT array.\n *\n * @type {number}\n */\n #length;\n\n /**\n * The internal LUT array.\n *\n * @type {Float32Array}\n */\n #lut;\n\n /**\n * @param {RescaleSlopeAndIntercept} rsi The rescale slope and intercept.\n * @param {number} bitsStored The number of bits used to store the data.\n */\n constructor(rsi, bitsStored) {\n this.#rsi = rsi;\n this.#isIdRsi = rsi.isID();\n\n this.#length = Math.pow(2, bitsStored);\n\n // create lut if not identity RSI\n if (!this.#isIdRsi) {\n this.#lut = new Float32Array(this.#length);\n for (let i = 0; i < this.#length; ++i) {\n this.#lut[i] = this.#rsi.apply(i);\n }\n }\n }\n\n /**\n * Get the Rescale Slope and Intercept (RSI).\n *\n * @returns {RescaleSlopeAndIntercept} The rescale slope and intercept object.\n */\n getRSI() {\n return this.#rsi;\n }\n\n /**\n * Get the length of the LUT array.\n *\n * @returns {number} The length of the LUT array.\n */\n getLength() {\n return this.#length;\n }\n\n /**\n * Get the value of the LUT at the given offset.\n *\n * @param {number} offset The input offset in [0,2^bitsStored] range\n * or full range for ID rescale.\n * @returns {number} The float32 value of the LUT at the given offset.\n */\n getValue(offset) {\n return this.#isIdRsi ? offset : this.#lut[offset];\n }\n\n} // class ModalityLut\n","export const logger = {\n /**\n * Available log levels.\n * Note: need to activate verbose level in\n * Chrome console to see DEBUG messages.\n */\n levels: {\n TRACE: 0,\n DEBUG: 1,\n INFO: 2,\n WARN: 3,\n ERROR: 4\n },\n\n /**\n * Logger level: default to WARN.\n */\n level: 3,\n\n /**\n * Log a trace message.\n *\n * @param {string} msg The message to log.\n */\n trace: function (msg) {\n if (this.level <= this.levels.TRACE) {\n console.trace(msg);\n }\n },\n\n /**\n * Log a debug message.\n * Careful: depends on console settings.\n *\n * @param {string} msg The message to log.\n */\n debug: function (msg) {\n if (this.level <= this.levels.DEBUG) {\n console.debug(msg);\n }\n },\n\n /**\n * Log an info message.\n *\n * @param {string} msg The message to log.\n */\n info: function (msg) {\n if (this.level <= this.levels.INFO) {\n console.info(msg);\n }\n },\n\n /**\n * Log a warn message.\n *\n * @param {string} msg The message to log.\n */\n warn: function (msg) {\n if (this.level <= this.levels.WARN) {\n console.warn(msg);\n }\n },\n\n /**\n * Log an error message.\n *\n * @param {string} msg The message to log.\n */\n error: function (msg) {\n if (this.level <= this.levels.ERROR) {\n console.error(msg);\n }\n }\n\n}; // logger\n","import {logger} from '../utils/logger';\n\n/**\n * Minimum window width value.\n *\n * Ref: {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.11.2.html#sect_C.11.2.1.2}.\n */\nconst minWindowWidth = 1;\n\n/**\n * Validate an input window width.\n *\n * @param {number} value The value to test.\n * @returns {number} A valid window width.\n */\nexport function validateWindowWidth(value) {\n return value < minWindowWidth ? minWindowWidth : value;\n}\n\n/**\n * Window and Level also known as window width and center.\n */\nexport class WindowLevel {\n /**\n * The window center.\n *\n * @type {number}\n */\n center;\n\n /**\n * The window width.\n *\n * @type {number}\n */\n width;\n\n /**\n * @param {number} center The window center.\n * @param {number} width The window width.\n */\n constructor(center, width) {\n // check width\n if (width < minWindowWidth) {\n logger.warn('Using minimum window width since input is not valid: ' +\n width);\n width = minWindowWidth;\n }\n this.center = center;\n this.width = width;\n }\n\n /**\n * Check for equality.\n *\n * @param {WindowLevel} rhs The other object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.center === rhs.center &&\n this.width === rhs.width;\n }\n\n} // WindowLevel class\n\n/**\n * List of default window level presets.\n *\n * @type {Object.>}\n */\nexport const defaultPresets = {\n CT: {\n mediastinum: new WindowLevel(40, 400),\n lung: new WindowLevel(-500, 1500),\n bone: new WindowLevel(500, 2000),\n brain: new WindowLevel(40, 80),\n head: new WindowLevel(90, 350)\n }\n};\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {WindowLevel} from './windowLevel';\n/* eslint-enable no-unused-vars */\n\n/**\n * VOI (Values of Interest) LUT class: apply window centre and width.\n *\n * ```\n * if (x <= c - 0.5 - (w-1)/2) then y = ymin\n * else if (x > c - 0.5 + (w-1)/2) then y = ymax\n * else y = ((x - (c - 0.5)) / (w-1) + 0.5) * (ymax - ymin) + ymin\n * ```\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.11.2.html}.\n */\nexport class VoiLut {\n\n /**\n * The window and level.\n *\n * @type {WindowLevel}\n */\n #windowLevel;\n\n /**\n * Signed data offset. Defaults to 0.\n *\n * @type {number}\n */\n #signedOffset = 0;\n\n /**\n * Output value minimum. Defaults to 0.\n *\n * @type {number}\n */\n #ymin = 0;\n\n /**\n * Output value maximum. Defaults to 255.\n *\n * @type {number}\n */\n #ymax = 255;\n\n /**\n * Input value minimum (calculated).\n *\n * @type {number}\n */\n #xmin = null;\n\n /**\n * Input value maximum (calculated).\n *\n * @type {number}\n */\n #xmax = null;\n\n /**\n * Window level equation slope (calculated).\n *\n * @type {number}\n */\n #slope = null;\n\n /**\n * Window level equation intercept (calculated).\n *\n * @type {number}\n */\n #inter = null;\n\n /**\n * @param {WindowLevel} wl The window center and width.\n */\n constructor(wl) {\n this.#windowLevel = wl;\n this.#init();\n }\n\n /**\n * Get the window and level.\n *\n * @returns {WindowLevel} The window center and width.\n */\n getWindowLevel() {\n return this.#windowLevel;\n }\n\n /**\n * Initialise members. Called at construction.\n *\n */\n #init() {\n const center = this.#windowLevel.center;\n const width = this.#windowLevel.width;\n const c = center + this.#signedOffset;\n // from the standard\n this.#xmin = c - 0.5 - ((width - 1) / 2);\n this.#xmax = c - 0.5 + ((width - 1) / 2);\n // develop the equation:\n // y = ( ( x - (c - 0.5) ) / (w-1) + 0.5 ) * (ymax - ymin) + ymin\n // y = ( x / (w-1) ) * (ymax - ymin) +\n // ( -(c - 0.5) / (w-1) + 0.5 ) * (ymax - ymin) + ymin\n this.#slope = (this.#ymax - this.#ymin) / (width - 1);\n this.#inter = (-(c - 0.5) / (width - 1) + 0.5) *\n (this.#ymax - this.#ymin) + this.#ymin;\n }\n\n /**\n * Set the signed offset.\n *\n * @param {number} offset The signed data offset,\n * typically: slope * ( size / 2).\n */\n setSignedOffset(offset) {\n this.#signedOffset = offset;\n // re-initialise\n this.#init();\n }\n\n /**\n * Apply the window level on an input value.\n *\n * @param {number} value The value to rescale as an integer.\n * @returns {number} The leveled value, in the\n * [ymin, ymax] range (default [0,255]).\n */\n apply(value) {\n if (value <= this.#xmin) {\n return this.#ymin;\n } else if (value > this.#xmax) {\n return this.#ymax;\n } else {\n return (value * this.#slope) + this.#inter;\n }\n }\n\n} // class VoiLut\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {ModalityLut} from './modalityLut';\nimport {VoiLut} from './voiLut';\n/* eslint-enable no-unused-vars */\n\n/**\n * Window LUT class: combines a modality LUT and a VOI LUT.\n */\nexport class WindowLut {\n\n /**\n * The modality LUT.\n *\n * @type {ModalityLut}\n */\n #modalityLut;\n\n /**\n * The VOI LUT.\n *\n * @type {VoiLut}\n */\n #voiLut;\n\n /**\n * The internal LUT array: Uint8ClampedArray clamps between 0 and 255.\n *\n * @type {Uint8ClampedArray}\n */\n #lut;\n\n /**\n * Shift for signed data.\n *\n * @type {number}\n */\n #signedShift = 0;\n\n /**\n * Is the RSI discrete.\n *\n * @type {boolean}\n */\n #isDiscrete = true;\n\n /**\n * Construct a window LUT object, VOI LUT is set with\n * the 'setVoiLut' method.\n *\n * @param {ModalityLut} modalityLut The associated rescale LUT.\n * @param {boolean} isSigned Flag to know if the data is signed or not.\n * @param {boolean} isDiscrete Flag to know if the input data is discrete.\n */\n constructor(modalityLut, isSigned, isDiscrete) {\n this.#modalityLut = modalityLut;\n\n if (isSigned) {\n const size = this.#modalityLut.getLength();\n this.#signedShift = size / 2;\n } else {\n this.#signedShift = 0;\n }\n\n this.#isDiscrete = isDiscrete;\n }\n\n /**\n * Get the VOI LUT.\n *\n * @returns {VoiLut} The VOI LUT.\n */\n getVoiLut() {\n return this.#voiLut;\n }\n\n /**\n * Get the modality LUT.\n *\n * @returns {ModalityLut} The modality LUT.\n */\n getModalityLut() {\n return this.#modalityLut;\n }\n\n /**\n * Set the VOI LUT.\n *\n * @param {VoiLut} lut The VOI LUT.\n */\n setVoiLut(lut) {\n // store the window values\n this.#voiLut = lut;\n\n // possible signed shift (LUT indices are positive)\n this.#voiLut.setSignedOffset(\n this.#modalityLut.getRSI().getSlope() * this.#signedShift);\n\n // create lut if not continous\n if (this.#isDiscrete) {\n const size = this.#modalityLut.getLength();\n // use clamped array (polyfilled in env.js)\n this.#lut = new Uint8ClampedArray(size);\n // by default WindowLevel returns a value in the [0,255] range\n // this is ok with regular Arrays and ClampedArray.\n for (let i = 0; i < size; ++i) {\n this.#lut[i] = this.#voiLut.apply(this.#modalityLut.getValue(i));\n }\n }\n }\n\n /**\n * Get the value of the LUT at the given offset.\n *\n * @param {number} offset The input offset in [0,2^bitsStored] range\n * for discrete data or full range for non discrete.\n * @returns {number} The integer value (default [0,255]) of the LUT\n * at the given offset.\n */\n getValue(offset) {\n if (this.#isDiscrete) {\n return this.#lut[offset + this.#signedShift];\n } else {\n return Math.floor(this.#voiLut.apply(offset + this.#signedShift));\n }\n }\n\n} // class WindowLut\n","/**\n * Lookup tables for image colour display.\n */\n\nconst lut_range_max = 256;\n\n/**\n * Build a LUT of size lut_range_max.\n *\n * @param {Function} func The i to lut function.\n * @returns {number[]} The LUT.\n */\nfunction buildLut(func) {\n const lut = [];\n for (let i = 0; i < lut_range_max; ++i) {\n lut.push(func(i));\n }\n return lut;\n}\n\n/**\n * Ramp to lut_range_max minus one on the first third values.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction toMaxFirstThird(i) {\n const val = i * 3;\n if (val > lut_range_max - 1) {\n return lut_range_max - 1;\n }\n return val;\n}\n\n/**\n * Ramp to lut_range_max minus one on the second third values,\n * otherwise return 0 for the first third and\n * lut_range_max minus one for the last third.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction toMaxSecondThird(i) {\n const third = lut_range_max / 3;\n let val = 0;\n if (i >= third) {\n val = (i - third) * 3;\n if (val > lut_range_max - 1) {\n return lut_range_max - 1;\n }\n }\n return val;\n}\n\n/**\n * Ramp to lut_range_max minus one on the last third values,\n * otherwise return 0.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction toMaxThirdThird(i) {\n const third = lut_range_max / 3;\n let val = 0;\n if (i >= 2 * third) {\n val = (i - 2 * third) * 3;\n if (val > lut_range_max - 1) {\n return lut_range_max - 1;\n }\n }\n return val;\n}\n\n/**\n * Identity, returns i.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction id(i) {\n return i;\n}\n\n/**\n * Returns lut_range_max minus one minus i.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction invId(i) {\n return (lut_range_max - 1) - i;\n}\n\n/**\n * Colour map: red, green and blue components\n * to associate with intensity values.\n */\nexport class ColourMap {\n /**\n * Red component: 256 values in the [0, 255] range.\n *\n * @type {number[]}\n */\n red;\n /**\n * Green component: 256 values in the [0, 255] range.\n *\n * @type {number[]}\n */\n green;\n /**\n * Blue component: 256 values in the [0, 255] range.\n *\n * @type {number[]}\n */\n blue;\n\n /**\n * @param {number[]} red Red component.\n * @param {number[]} green Green component.\n * @param {number[]} blue Blue component.\n */\n constructor(red, green, blue) {\n this.red = red;\n this.green = green;\n this.blue = blue;\n }\n}\n\n/**\n * List of available lookup tables (lut).\n *\n * @type {Object}\n */\nexport const luts = {\n // plain\n plain: {\n red: buildLut(id),\n green: buildLut(id),\n blue: buildLut(id)\n },\n\n // inverse plain\n invPlain: {\n red: buildLut(invId),\n green: buildLut(invId),\n blue: buildLut(invId)\n },\n\n // rainbow\n /* eslint-disable @stylistic/js/max-len */\n rainbow: {\n blue: [0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 255, 247, 239, 231, 223, 215, 207, 199, 191, 183, 175, 167, 159, 151, 143, 135, 127, 119, 111, 103, 95, 87, 79, 71, 63, 55, 47, 39, 31, 23, 15, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 253, 251, 249, 247, 245, 243, 241, 239, 237, 235, 233, 231, 229, 227, 225, 223, 221, 219, 217, 215, 213, 211, 209, 207, 205, 203, 201, 199, 197, 195, 193, 192, 189, 186, 183, 180, 177, 174, 171, 168, 165, 162, 159, 156, 153, 150, 147, 144, 141, 138, 135, 132, 129, 126, 123, 120, 117, 114, 111, 108, 105, 102, 99, 96, 93, 90, 87, 84, 81, 78, 75, 72, 69, 66, 63, 60, 57, 54, 51, 48, 45, 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9, 6, 3],\n red: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 62, 60, 58, 56, 54, 52, 50, 48, 46, 44, 42, 40, 38, 36, 34, 32, 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // hot\n hot: {\n red: buildLut(toMaxFirstThird),\n green: buildLut(toMaxSecondThird),\n blue: buildLut(toMaxThirdThird)\n },\n\n // hot iron\n /* eslint-disable @stylistic/js/max-len */\n hot_iron: {\n red: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 255],\n blue: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // pet\n /* eslint-disable @stylistic/js/max-len */\n pet: {\n red: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 128, 126, 124, 122, 120, 118, 116, 114, 112, 110, 108, 106, 104, 102, 100, 98, 96, 94, 92, 90, 88, 86, 84, 82, 80, 78, 76, 74, 72, 70, 68, 66, 64, 63, 61, 59, 57, 55, 53, 51, 49, 47, 45, 43, 41, 39, 37, 35, 33, 31, 29, 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 255],\n blue: [0, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 252, 248, 244, 240, 236, 232, 228, 224, 220, 216, 212, 208, 204, 200, 196, 192, 188, 184, 180, 176, 172, 168, 164, 160, 156, 152, 148, 144, 140, 136, 132, 128, 124, 120, 116, 112, 108, 104, 100, 96, 92, 88, 84, 80, 76, 72, 68, 64, 60, 56, 52, 48, 44, 40, 36, 32, 28, 24, 20, 16, 12, 8, 4, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 129, 133, 137, 141, 145, 149, 153, 157, 161, 165, 170, 174, 178, 182, 186, 190, 194, 198, 202, 206, 210, 214, 218, 222, 226, 230, 234, 238, 242, 246, 250, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // hot metal blue\n /* eslint-disable @stylistic/js/max-len */\n hot_metal_blue: {\n red: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 6, 9, 12, 15, 18, 21, 24, 26, 29, 32, 35, 38, 41, 44, 47, 50, 52, 55, 57, 59, 62, 64, 66, 69, 71, 74, 76, 78, 81, 83, 85, 88, 90, 93, 96, 99, 102, 105, 108, 111, 114, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 161, 164, 166, 169, 172, 175, 178, 181, 184, 187, 190, 194, 198, 201, 205, 209, 213, 217, 221, 224, 228, 232, 236, 240, 244, 247, 251, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 6, 8, 9, 11, 13, 15, 17, 19, 21, 23, 24, 26, 28, 30, 32, 34, 36, 38, 40, 41, 43, 45, 47, 49, 51, 53, 55, 56, 58, 60, 62, 64, 66, 68, 70, 72, 73, 75, 77, 79, 81, 83, 85, 87, 88, 90, 92, 94, 96, 98, 100, 102, 104, 105, 107, 109, 111, 113, 115, 117, 119, 120, 122, 124, 126, 128, 130, 132, 134, 136, 137, 139, 141, 143, 145, 147, 149, 151, 152, 154, 156, 158, 160, 162, 164, 166, 168, 169, 171, 173, 175, 177, 179, 181, 183, 184, 186, 188, 190, 192, 194, 196, 198, 200, 201, 203, 205, 207, 209, 211, 213, 215, 216, 218, 220, 222, 224, 226, 228, 229, 231, 233, 235, 237, 239, 240, 242, 244, 246, 248, 250, 251, 253, 255],\n blue: [0, 2, 4, 6, 8, 10, 12, 14, 16, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 184, 186, 188, 190, 192, 194, 196, 198, 200, 197, 194, 191, 188, 185, 182, 179, 176, 174, 171, 168, 165, 162, 159, 156, 153, 150, 144, 138, 132, 126, 121, 115, 109, 103, 97, 91, 85, 79, 74, 68, 62, 56, 50, 47, 44, 41, 38, 35, 32, 29, 26, 24, 21, 18, 15, 12, 9, 6, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 6, 9, 12, 15, 18, 21, 24, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 174, 176, 179, 182, 185, 188, 191, 194, 197, 200, 203, 206, 210, 213, 216, 219, 223, 226, 229, 232, 236, 239, 242, 245, 249, 252, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // pet 20 step\n /* eslint-disable @stylistic/js/max-len */\n pet_20step: {\n red: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n blue: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255]\n }\n /* eslint-enable @stylistic/js/max-len */\n};\n","// example implementation: dcmtk/dcmiod/libsrc/cielabutil.cc\n// https://github.com/DCMTK/dcmtk/blob/DCMTK-3.6.6/dcmiod/libsrc/cielabutil.cc\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * RGB colour class.\n */\nexport class RGB {\n /**\n * Red component.\n *\n * @type {number}\n */\n r;\n /**\n * Green component.\n *\n * @type {number}\n */\n g;\n /**\n * Blue component.\n *\n * @type {number}\n */\n b;\n /**\n * @param {number} r Red component.\n * @param {number} g Green component.\n * @param {number} b Blue component.\n */\n constructor(r, g, b) {\n this.r = r;\n this.g = g;\n this.b = b;\n }\n}\n\n// black rgb\nexport const BLACK = {r: 0, g: 0, b: 0};\n\n/**\n * Check if two rgb objects are equal.\n *\n * @param {RGB} c1 The first colour.\n * @param {RGB} c2 The second colour.\n * @returns {boolean} True if both colour are equal.\n */\nexport function isEqualRgb(c1, c2) {\n return c1 !== null &&\n c2 !== null &&\n typeof c1 !== 'undefined' &&\n typeof c2 !== 'undefined' &&\n c1.r === c2.r &&\n c1.g === c2.g &&\n c1.b === c2.b;\n}\n\n/**\n * Convert YBR to RGB.\n *\n * Ref:\n * - {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.7.6.3.html#sect_C.7.6.3.1.2},\n * - {@link https://en.wikipedia.org/wiki/YCbCr#JPEG_conversion}.\n *\n * @param {number} y The Y component.\n * @param {number} cb The Cb component.\n * @param {number} cr The Cr component.\n * @returns {RGB} RGB equivalent as {r,g,b}.\n */\nexport function ybrToRgb(y, cb, cr) {\n return {\n r: y + 1.402 * (cr - 128),\n g: y - 0.34414 * (cb - 128) - 0.71414 * (cr - 128),\n b: y + 1.772 * (cb - 128)\n };\n}\n\n/**\n * Convert a hex color into RGB.\n *\n * @param {string} hexStr The hex color as '#ab01ef'.\n * @returns {RGB} The RGB values as {r,g,b}.\n */\nexport function hexToRgb(hexStr) {\n return {\n r: parseInt(hexStr.substring(1, 3), 16),\n g: parseInt(hexStr.substring(3, 5), 16),\n b: parseInt(hexStr.substring(5, 7), 16)\n };\n}\n\n/**\n * Convert RGB to its hex equivalent.\n *\n * @param {RGB} rgb The RGB object as {r,g,b}.\n * @returns {string} A string representing the hex color as '#ab01ef'.\n */\nexport function rgbToHex(rgb) {\n return '#' +\n ((1 << 24) + (rgb.r << 16) + (rgb.g << 8) + rgb.b).toString(16).slice(1);\n}\n\n/**\n * Get the brightness of a RGB colour: calculates\n * the luma (Y) of the YIQ colour space.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/YIQ#From_RGB_to_YIQ}.\n *\n * @param {RGB} rgb RGB triplet.\n * @returns {number} The brightness ([0,1]).\n */\nexport function getBrightness(rgb) {\n // 0.001172549 = 0.299 / 255\n // 0.002301961 = 0.587 / 255\n // 0.000447059 = 0.114 / 255\n return rgb.r * 0.001172549 +\n rgb.g * 0.002301961 +\n rgb.b * 0.000447059;\n}\n\n/**\n * Check if a colour given in hexadecimal format is dark.\n *\n * @param {string} hexColour The colour (as '#ab01ef').\n * @returns {boolean} True if the colour is dark (brightness < 0.5).\n */\nexport function isDarkColour(hexColour) {\n return getBrightness(hexToRgb(hexColour)) < 0.5;\n}\n\n/**\n * Get the shadow colour of an input colour.\n *\n * @param {string} hexColour The colour (as '#ab01ef').\n * @returns {string} The shadow colour (white or black).\n */\nexport function getShadowColour(hexColour) {\n return isDarkColour(hexColour) ? '#fff' : '#000';\n}\n\n/**\n * Unsigned int CIE LAB value ([0, 65535]) to CIE LAB value\n * (L: [0, 100], a: [-128, 127], b: [-128, 127]).\n *\n * @param {object} triplet CIE LAB triplet as {l,a,b} with unsigned range.\n * @returns {object} CIE LAB triplet as {l,a,b} with CIE LAB range.\n */\nexport function uintLabToLab(triplet) {\n // 0.001525902 = 100 / 65535\n // 0.003891051 = 255 / 65535\n return {\n l: 0.001525902 * triplet.l,\n a: 0.003891051 * triplet.a - 128,\n b: 0.003891051 * triplet.b - 128,\n };\n}\n\n/**\n * CIE LAB value (L: [0, 100], a: [-128, 127], b: [-128, 127]) to\n * unsigned int CIE LAB ([0, 65535]).\n *\n * @param {object} triplet CIE XYZ triplet as {l,a,b} with CIE LAB range.\n * @returns {object} CIE LAB triplet as {l,a,b} with unsigned range.\n */\nexport function labToUintLab(triplet) {\n // 655.35 = 65535 / 100\n // aUint = (a + 128) * 65535 / 255\n // 257 = 65535 / 255\n // 32896 = 257 * 128\n return {\n l: 655.35 * triplet.l,\n a: 257 * triplet.a + 32896,\n b: 257 * triplet.b + 32896,\n };\n}\n\n/**\n * CIE Standard Illuminant D65, standard 2° observer.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/Illuminant_D65}.\n */\nconst d65 = {\n x: 95.0489,\n y: 100,\n z: 108.884\n};\n\n/**\n * Convert CIE LAB to CIE XYZ (standard illuminant D65, 2degree 1931).\n *\n * Ref: {@link https://en.wikipedia.org/wiki/CIELAB_color_space#From_CIELAB_to_CIEXYZ}.\n *\n * @param {object} triplet CIE LAB triplet as {l,a,b}.\n * @returns {Scalar3D} CIE XYZ triplet as {x,y,z}.\n */\nexport function cielabToCiexyz(triplet) {\n /**\n * Apply the inverse lab function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function invLabFunc(x) {\n let res = null;\n // delta = 6 / 29 = 0.206896552\n if (x > 0.206896552) {\n res = Math.pow(x, 3);\n } else {\n // 0.128418549 = 3 * delta^2\n // 0.017712903 = 3 * delta^2 * (4 / 29)\n res = 0.128418549 * x - 0.017712903;\n }\n return res;\n }\n\n const illuminant = d65;\n const l0 = (triplet.l + 16) / 116;\n\n return {\n x: illuminant.x * invLabFunc(l0 + triplet.a / 500),\n y: illuminant.y * invLabFunc(l0),\n z: illuminant.z * invLabFunc(l0 - triplet.b / 200)\n };\n}\n\n/**\n * Convert CIE XYZ to CIE LAB (standard illuminant D65, 2degree 1931).\n *\n * Ref: {@link https://en.wikipedia.org/wiki/CIELAB_color_space#From_CIEXYZ_to_CIELAB}.\n *\n * @param {Scalar3D} triplet CIE XYZ triplet as {x,y,z}.\n * @returns {object} CIE LAB triplet as {l,a,b}.\n */\nexport function ciexyzToCielab(triplet) {\n /**\n * Apply the lab function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function labFunc(x) {\n let res = null;\n // delta = 6 / 29 = 0.206896552\n // delta^3 = 0.008856452\n if (x > 0.008856452) {\n res = Math.pow(x, 0.333333333);\n } else {\n // 7.787037037 = 1 / 3 * delta^2\n // 0.137931034 = 4 / 29\n res = 7.787037037 * x + 0.137931034;\n }\n return res;\n }\n\n const illuminant = d65;\n const fy = labFunc(triplet.y / illuminant.y);\n\n return {\n l: 116 * fy - 16,\n a: 500 * (labFunc(triplet.x / illuminant.x) - fy),\n b: 200 * (fy - labFunc(triplet.z / illuminant.z))\n };\n}\n\n/**\n * Convert CIE XYZ to sRGB.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/SRGB#From_CIE_XYZ_to_sRGB}.\n *\n * @param {Scalar3D} triplet CIE XYZ triplet as {x,y,z}.\n * @returns {RGB} 'sRGB' triplet as {r,g,b}.\n */\nexport function ciexyzToSrgb(triplet) {\n /**\n * Apply the gamma function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function gammaFunc(x) {\n let res = null;\n if (x <= 0.0031308) {\n res = 12.92 * x;\n } else {\n // 0.416666667 = 1 / 2.4\n res = 1.055 * Math.pow(x, 0.416666667) - 0.055;\n }\n // clip [0,1]\n return Math.min(1, Math.max(0, res));\n }\n\n const x = triplet.x / 100;\n const y = triplet.y / 100;\n const z = triplet.z / 100;\n\n return {\n r: Math.round(255 * gammaFunc(3.2406 * x - 1.5372 * y - 0.4986 * z)),\n g: Math.round(255 * gammaFunc(-0.9689 * x + 1.8758 * y + 0.0415 * z)),\n b: Math.round(255 * gammaFunc(0.0557 * x - 0.2040 * y + 1.0570 * z))\n };\n}\n\n/**\n * Convert sRGB to CIE XYZ.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/SRGB#From_sRGB_to_CIE_XYZ}.\n *\n * @param {RGB} triplet 'sRGB' triplet as {r,g,b}.\n * @returns {Scalar3D} CIE XYZ triplet as {x,y,z}.\n */\nexport function srgbToCiexyz(triplet) {\n /**\n * Apply the inverse gamma function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function invGammaFunc(x) {\n let res = null;\n if (x <= 0.04045) {\n res = x / 12.92;\n } else {\n res = Math.pow((x + 0.055) / 1.055, 2.4);\n }\n return res;\n }\n\n const rl = invGammaFunc(triplet.r / 255);\n const gl = invGammaFunc(triplet.g / 255);\n const bl = invGammaFunc(triplet.b / 255);\n\n return {\n x: 100 * (0.4124 * rl + 0.3576 * gl + 0.1805 * bl),\n y: 100 * (0.2126 * rl + 0.7152 * gl + 0.0722 * bl),\n z: 100 * (0.0193 * rl + 0.1192 * gl + 0.9505 * bl)\n };\n}\n\n/**\n * Convert CIE LAB to sRGB (standard illuminant D65).\n *\n * @param {object} triplet CIE LAB triplet as {l,a,b}.\n * @returns {RGB} 'sRGB' triplet as {r,g,b}.\n */\nexport function cielabToSrgb(triplet) {\n return ciexyzToSrgb(cielabToCiexyz(triplet));\n}\n\n/**\n * Convert sRGB to CIE LAB (standard illuminant D65).\n *\n * @param {RGB} triplet 'sRGB' triplet as {r,g,b}.\n * @returns {object} CIE LAB triplet as {l,a,b}.\n */\nexport function srgbToCielab(triplet) {\n return ciexyzToCielab(srgbToCiexyz(triplet));\n}\n\n/**\n * Get the hex code of a string colour for a colour used in pre dwv v0.17.\n *\n * @param {string} name The name of a colour.\n * @returns {string} The hex representing the colour.\n */\nexport function colourNameToHex(name) {\n // default colours used in dwv version < 0.17\n const dict = {\n Yellow: '#ffff00',\n Red: '#ff0000',\n White: '#ffffff',\n Green: '#008000',\n Blue: '#0000ff',\n Lime: '#00ff00',\n Fuchsia: '#ff00ff',\n Black: '#000000'\n };\n let res = '#ffff00';\n if (typeof dict[name] !== 'undefined') {\n res = dict[name];\n }\n return res;\n}\n","/**\n * Immutable 3D vector.\n */\nexport class Vector3D {\n\n /**\n * X coordinate.\n *\n * @type {number}\n */\n #x;\n\n /**\n * Y coordinate.\n *\n * @type {number}\n */\n #y;\n\n /**\n * Z coordinate.\n *\n * @type {number}\n */\n #z;\n\n /**\n * @param {number} x The X component of the vector.\n * @param {number} y The Y component of the vector.\n * @param {number} z The Z component of the vector.\n */\n constructor(x, y, z) {\n this.#x = x;\n this.#y = y;\n this.#z = z;\n }\n\n /**\n * Get the X component of the vector.\n *\n * @returns {number} The X component of the vector.\n */\n getX() {\n return this.#x;\n }\n\n /**\n * Get the Y component of the vector.\n *\n * @returns {number} The Y component of the vector.\n */\n getY() {\n return this.#y;\n }\n\n /**\n * Get the Z component of the vector.\n *\n * @returns {number} The Z component of the vector.\n */\n getZ() {\n return this.#z;\n }\n\n /**\n * Check for Vector3D equality.\n *\n * @param {Vector3D} rhs The other vector to compare to.\n * @returns {boolean} True if both vectors are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.#x === rhs.getX() &&\n this.#y === rhs.getY() &&\n this.#z === rhs.getZ();\n }\n\n /**\n * Get a string representation of the Vector3D.\n *\n * @returns {string} The vector as a string.\n */\n toString() {\n return '(' + this.#x +\n ', ' + this.#y +\n ', ' + this.#z + ')';\n }\n\n /**\n * Get the norm of the vector.\n *\n * @returns {number} The norm.\n */\n norm() {\n return Math.sqrt(\n (this.#x * this.#x) +\n (this.#y * this.#y) +\n (this.#z * this.#z)\n );\n }\n\n /**\n * Get the cross product with another Vector3D, ie the\n * vector that is perpendicular to both a and b.\n * If both vectors are parallel, the cross product is a zero vector.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/Cross_product}.\n *\n * @param {Vector3D} vector3D The input vector.\n * @returns {Vector3D} The result vector.\n */\n crossProduct(vector3D) {\n return new Vector3D(\n (this.#y * vector3D.getZ()) - (vector3D.getY() * this.#z),\n (this.#z * vector3D.getX()) - (vector3D.getZ() * this.#x),\n (this.#x * vector3D.getY()) - (vector3D.getX() * this.#y));\n }\n\n /**\n * Get the dot product with another Vector3D.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/Dot_product}.\n *\n * @param {Vector3D} vector3D The input vector.\n * @returns {number} The dot product.\n */\n dotProduct(vector3D) {\n return (this.#x * vector3D.getX()) +\n (this.#y * vector3D.getY()) +\n (this.#z * vector3D.getZ());\n }\n\n /**\n * Is this vector codirectional to an input one.\n *\n * @param {Vector3D} vector3D The vector to test.\n * @returns {boolean} True if codirectional, false is opposite.\n */\n isCodirectional(vector3D) {\n // a.dot(b) = ||a|| * ||b|| * cos(theta)\n // (https://en.wikipedia.org/wiki/Dot_product#Geometric_definition)\n // -> the sign of the dot product depends on the cosinus of\n // the angle between the vectors\n // -> >0 => vectors are codirectional\n // -> <0 => vectors are opposite\n return this.dotProduct(vector3D) > 0;\n }\n\n} // Vector3D class","import {Vector3D} from './vector';\nimport {Point3D} from './point';\nimport {Index} from './index';\nimport {logger} from '../utils/logger';\n\n// Number.EPSILON is difference between 1 and the smallest\n// floating point number greater than 1\n// -> ~2e-16\n// BIG_EPSILON -> ~2e-12\nexport const BIG_EPSILON = Number.EPSILON * 1e4;\n// 'real world', for example when comparing positions\nexport const REAL_WORLD_EPSILON = 1e-4;\n\n/**\n * Check if two numbers are similar.\n *\n * @param {number} a The first number.\n * @param {number} b The second number.\n * @param {number} tol The comparison tolerance,\n * default to Number.EPSILON.\n * @returns {boolean} True if similar.\n */\nexport function isSimilar(a, b, tol) {\n if (typeof tol === 'undefined') {\n tol = Number.EPSILON;\n }\n return Math.abs(a - b) < tol;\n}\n\n/**\n * Immutable 3x3 Matrix.\n */\nexport class Matrix33 {\n\n /**\n * Matrix values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * Matrix inverse, calculated at first ask.\n *\n * @type {Matrix33}\n */\n #inverse;\n\n /**\n * @param {number[]} values Row-major ordered 9 values.\n */\n constructor(values) {\n this.#values = values;\n }\n\n /**\n * Get a value of the matrix.\n *\n * @param {number} row The row at wich to get the value.\n * @param {number} col The column at wich to get the value.\n * @returns {number|undefined} The value at the position.\n */\n get(row, col) {\n return this.#values[row * 3 + col];\n }\n\n /**\n * Get the inverse of this matrix.\n *\n * @returns {Matrix33|undefined} The inverse matrix or undefined\n * if the determinant is zero.\n */\n getInverse() {\n if (typeof this.#inverse === 'undefined') {\n this.#inverse = getMatrixInverse(this);\n }\n return this.#inverse;\n }\n\n /**\n * Check for Matrix33 equality.\n *\n * @param {Matrix33} rhs The other matrix to compare to.\n * @param {number} [p] A numeric expression for the precision to use in check\n * (ex: 0.001). Defaults to Number.EPSILON if not provided.\n * @returns {boolean} True if both matrices are equal.\n */\n equals(rhs, p) {\n // TODO: add type check\n // check values\n for (let i = 0; i < 3; ++i) {\n for (let j = 0; j < 3; ++j) {\n if (!isSimilar(this.get(i, j), rhs.get(i, j), p)) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * Get a string representation of the Matrix33.\n *\n * @returns {string} The matrix as a string.\n */\n toString() {\n let str = '[';\n for (let i = 0; i < 3; ++i) {\n if (i !== 0) {\n str += ', \\n ';\n }\n for (let j = 0; j < 3; ++j) {\n if (j !== 0) {\n str += ', ';\n }\n str += this.get(i, j);\n }\n }\n str += ']';\n return str;\n }\n\n /**\n * Multiply this matrix by another.\n *\n * @param {Matrix33} rhs The matrix to multiply by.\n * @returns {Matrix33} The product matrix.\n */\n multiply(rhs) {\n const values = [];\n for (let i = 0; i < 3; ++i) {\n for (let j = 0; j < 3; ++j) {\n let tmp = 0;\n for (let k = 0; k < 3; ++k) {\n tmp += this.get(i, k) * rhs.get(k, j);\n }\n values.push(tmp);\n }\n }\n return new Matrix33(values);\n }\n\n /**\n * Get the absolute value of this matrix.\n *\n * @returns {Matrix33} The result matrix.\n */\n getAbs() {\n const values = [];\n for (let i = 0; i < 3; ++i) {\n for (let j = 0; j < 3; ++j) {\n values.push(Math.abs(this.get(i, j)));\n }\n }\n return new Matrix33(values);\n }\n\n /**\n * Multiply this matrix by a 3D array.\n *\n * @param {number[]} array3D The input 3D array.\n * @returns {number[]} The result 3D array.\n */\n multiplyArray3D(array3D) {\n if (array3D.length !== 3) {\n throw new Error('Cannot multiply 3x3 matrix with non 3D array: ' +\n array3D.length);\n }\n const values = [];\n for (let i = 0; i < 3; ++i) {\n let tmp = 0;\n for (let j = 0; j < 3; ++j) {\n tmp += this.get(i, j) * array3D[j];\n }\n values.push(tmp);\n }\n return values;\n }\n\n /**\n * Multiply this matrix by a 3D vector.\n *\n * @param {Vector3D} vector3D The input 3D vector.\n * @returns {Vector3D} The result 3D vector.\n */\n multiplyVector3D(vector3D) {\n const array3D = this.multiplyArray3D(\n [vector3D.getX(), vector3D.getY(), vector3D.getZ()]\n );\n return new Vector3D(array3D[0], array3D[1], array3D[2]);\n }\n\n /**\n * Multiply this matrix by a 3D point.\n *\n * @param {Point3D} point3D The input 3D point.\n * @returns {Point3D} The result 3D point.\n */\n multiplyPoint3D(point3D) {\n const array3D = this.multiplyArray3D(\n [point3D.getX(), point3D.getY(), point3D.getZ()]\n );\n return new Point3D(array3D[0], array3D[1], array3D[2]);\n }\n\n /**\n * Multiply this matrix by a 3D index.\n *\n * @param {Index} index3D The input 3D index.\n * @returns {Index} The result 3D index.\n */\n multiplyIndex3D(index3D) {\n const array3D = this.multiplyArray3D(index3D.getValues());\n return new Index(array3D);\n }\n\n /**\n * Get the index of the maximum in absolute value of a row.\n *\n * @param {number} row The row to get the maximum from.\n * @returns {object} The {value,index} of the maximum.\n */\n getRowAbsMax(row) {\n const values = [\n Math.abs(this.get(row, 0)),\n Math.abs(this.get(row, 1)),\n Math.abs(this.get(row, 2))\n ];\n const absMax = Math.max.apply(null, values);\n const index = values.indexOf(absMax);\n return {\n value: this.get(row, index),\n index: index\n };\n }\n\n /**\n * Get the index of the maximum in absolute value of a column.\n *\n * @param {number} col The column to get the maximum from.\n * @returns {object} The {value,index} of the maximum.\n */\n getColAbsMax(col) {\n const values = [\n Math.abs(this.get(0, col)),\n Math.abs(this.get(1, col)),\n Math.abs(this.get(2, col))\n ];\n const absMax = Math.max.apply(null, values);\n const index = values.indexOf(absMax);\n return {\n value: this.get(index, col),\n index: index\n };\n }\n\n /**\n * Get this matrix with only zero and +/- ones instead of the maximum.\n *\n * @returns {Matrix33} The simplified matrix.\n */\n asOneAndZeros() {\n const res = [];\n for (let j = 0; j < 3; ++j) {\n const max = this.getRowAbsMax(j);\n const sign = max.value > 0 ? 1 : -1;\n for (let i = 0; i < 3; ++i) {\n if (i === max.index) {\n //res.push(1);\n res.push(1 * sign);\n } else {\n res.push(0);\n }\n }\n }\n return new Matrix33(res);\n }\n\n /**\n * Get the third column direction index of an orientation matrix.\n *\n * @returns {number} The index of the absolute maximum of the last column.\n */\n getThirdColMajorDirection() {\n return this.getColAbsMax(2).index;\n }\n\n} // Matrix33\n\n/**\n * Get the inverse of an input 3*3 matrix.\n *\n * Ref:\n * - {@link https://en.wikipedia.org/wiki/Invertible_matrix#Inversion_of_3_%C3%97_3_matrices},\n * - {@link https://github.com/willnode/N-Matrix-Programmer}.\n *\n * @param {Matrix33} m The input matrix.\n * @returns {Matrix33|undefined} The inverse matrix or undefined\n * if the determinant is zero.\n */\nfunction getMatrixInverse(m) {\n const m00 = m.get(0, 0);\n const m01 = m.get(0, 1);\n const m02 = m.get(0, 2);\n const m10 = m.get(1, 0);\n const m11 = m.get(1, 1);\n const m12 = m.get(1, 2);\n const m20 = m.get(2, 0);\n const m21 = m.get(2, 1);\n const m22 = m.get(2, 2);\n\n const a1212 = m11 * m22 - m12 * m21;\n const a2012 = m12 * m20 - m10 * m22;\n const a0112 = m10 * m21 - m11 * m20;\n\n let det = m00 * a1212 + m01 * a2012 + m02 * a0112;\n if (det === 0) {\n logger.warn('Cannot invert 3*3 matrix with zero determinant.');\n return undefined;\n }\n det = 1 / det;\n\n const values = [\n det * a1212,\n det * (m02 * m21 - m01 * m22),\n det * (m01 * m12 - m02 * m11),\n det * a2012,\n det * (m00 * m22 - m02 * m20),\n det * (m02 * m10 - m00 * m12),\n det * a0112,\n det * (m01 * m20 - m00 * m21),\n det * (m00 * m11 - m01 * m10)\n ];\n\n return new Matrix33(values);\n}\n\n/**\n * Create a 3x3 identity matrix.\n *\n * @returns {Matrix33} The identity matrix.\n */\nexport function getIdentityMat33() {\n /* eslint-disable @stylistic/js/array-element-newline */\n return new Matrix33([\n 1, 0, 0,\n 0, 1, 0,\n 0, 0, 1\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n}\n\n/**\n * Check if a matrix is a 3x3 identity matrix.\n *\n * @param {Matrix33} mat33 The matrix to test.\n * @returns {boolean} True if identity.\n */\nexport function isIdentityMat33(mat33) {\n return mat33.equals(getIdentityMat33());\n}\n","import {isSimilar} from './matrix';\nimport {Vector3D} from './vector';\n\n/**\n * Immutable 2D point.\n */\nexport class Point2D {\n\n /**\n * X position.\n *\n * @type {number}\n */\n #x;\n\n /**\n * Y position.\n *\n * @type {number}\n */\n #y;\n\n /**\n * @param {number} x The X coordinate for the point.\n * @param {number} y The Y coordinate for the point.\n */\n constructor(x, y) {\n this.#x = x;\n this.#y = y;\n }\n\n /**\n * Get the X position of the point.\n *\n * @returns {number} The X position of the point.\n */\n getX() {\n return this.#x;\n }\n\n /**\n * Get the Y position of the point.\n *\n * @returns {number} The Y position of the point.\n */\n getY() {\n return this.#y;\n }\n\n /**\n * Check for Point2D equality.\n *\n * @param {Point2D} rhs The other point to compare to.\n * @returns {boolean} True if both points are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.#x === rhs.getX() &&\n this.#y === rhs.getY();\n }\n\n /**\n * Get a string representation of the Point2D.\n *\n * @returns {string} The point as a string.\n */\n toString() {\n return '(' + this.#x + ', ' + this.#y + ')';\n }\n\n /**\n * Get the distance to another Point2D.\n *\n * @param {Point2D} point2D The input point.\n * @returns {number} Ths distance to the input point.\n */\n getDistance(point2D) {\n const dx = this.#x - point2D.getX();\n const dy = this.#y - point2D.getY();\n return Math.sqrt(dx * dx + dy * dy);\n }\n\n} // Point2D class\n\n/**\n * Immutable 3D point.\n */\nexport class Point3D {\n\n /**\n * X position.\n *\n * @type {number}\n */\n #x;\n\n /**\n * Y position.\n *\n * @type {number}\n */\n #y;\n\n /**\n * Z position.\n *\n * @type {number}\n */\n #z;\n\n /**\n * @param {number} x The X coordinate for the point.\n * @param {number} y The Y coordinate for the point.\n * @param {number} z The Z coordinate for the point.\n */\n constructor(x, y, z) {\n this.#x = x;\n this.#y = y;\n this.#z = z;\n }\n\n /**\n * Get the X position of the point.\n *\n * @returns {number} The X position of the point.\n */\n getX() {\n return this.#x;\n }\n\n /**\n * Get the Y position of the point.\n *\n * @returns {number} The Y position of the point.\n */\n getY() {\n return this.#y;\n }\n\n /**\n * Get the Z position of the point.\n *\n * @returns {number} The Z position of the point.\n */\n getZ() {\n return this.#z;\n }\n\n\n /**\n * Check for Point3D equality.\n *\n * @param {Point3D} rhs The other point to compare to.\n * @returns {boolean} True if both points are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.#x === rhs.getX() &&\n this.#y === rhs.getY() &&\n this.#z === rhs.getZ();\n }\n\n /**\n * Check for Point3D similarity.\n *\n * @param {Point3D} rhs The other point to compare to.\n * @param {number} tol Optional comparison tolerance,\n * default to Number.EPSILON.\n * @returns {boolean} True if both points are equal.\n */\n isSimilar(rhs, tol) {\n return rhs !== null &&\n isSimilar(this.#x, rhs.getX(), tol) &&\n isSimilar(this.#y, rhs.getY(), tol) &&\n isSimilar(this.#z, rhs.getZ(), tol);\n }\n\n /**\n * Get a string representation of the Point3D.\n *\n * @returns {string} The point as a string.\n */\n toString() {\n return '(' + this.#x +\n ', ' + this.#y +\n ', ' + this.#z + ')';\n }\n\n /**\n * Get the distance to another Point3D.\n *\n * @param {Point3D} point3D The input point.\n * @returns {number} Ths distance to the input point.\n */\n getDistance(point3D) {\n return Math.sqrt(this.#getSquaredDistance(point3D));\n }\n\n /**\n * Get the square of the distance between this and\n * an input point. Used for sorting.\n *\n * @param {Point3D} point3D The input point.\n * @returns {number} The square of the distance.\n */\n #getSquaredDistance(point3D) {\n const dx = this.#x - point3D.getX();\n const dy = this.#y - point3D.getY();\n const dz = this.#z - point3D.getZ();\n return dx * dx + dy * dy + dz * dz;\n }\n\n /**\n * Get the closest point to this in a Point3D list.\n *\n * @param {Point3D[]} pointList The list to check.\n * @returns {number} The index of the closest point in the input list.\n */\n getClosest(pointList) {\n let minIndex = 0;\n // the order between squared distances and distances is the same\n let minDist = this.#getSquaredDistance(pointList[minIndex]);\n for (let i = 0; i < pointList.length; ++i) {\n const dist = this.#getSquaredDistance(pointList[i]);\n if (dist < minDist) {\n minIndex = i;\n minDist = dist;\n }\n }\n return minIndex;\n }\n\n /**\n * Get the difference to another Point3D.\n *\n * @param {Point3D} point3D The input point.\n * @returns {Vector3D} The 3D vector from the input point to this one.\n */\n minus(point3D) {\n return new Vector3D(\n (this.#x - point3D.getX()),\n (this.#y - point3D.getY()),\n (this.#z - point3D.getZ()));\n }\n\n} // Point3D class\n\n/**\n * Get an array find callback for an equal input point.\n *\n * @param {Point3D} point The point to compare to.\n * @returns {Function} A function that compares, using `equals`,\n * its input point to the one given as input to this function.\n */\nexport function getEqualPoint3DFunction(point) {\n return function (element) {\n return element.equals(point);\n };\n}\n\n/**\n * Immutable point.\n * Warning: the input array is NOT cloned, modifying it will\n * modify the index values.\n */\nexport class Point {\n\n /**\n * Point values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * @param {number[]} values The point values.\n */\n constructor(values) {\n if (!values || typeof values === 'undefined') {\n throw new Error('Cannot create point with no values.');\n }\n if (values.length === 0) {\n throw new Error('Cannot create point with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val);\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create point with non number values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the index value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number} The value.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the index.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the Index.\n *\n * @returns {string} The Index as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this index.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check if the input point can be compared to this one.\n *\n * @param {Point} rhs The point to compare to.\n * @returns {boolean} True if both points are comparable.\n */\n canCompare(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n if (this.length() !== rhs.length()) {\n return false;\n }\n // seems ok!\n return true;\n }\n\n /**\n * Check for Point equality.\n *\n * @param {Point} rhs The point to compare to.\n * @returns {boolean} True if both points are equal.\n */\n equals(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return false;\n }\n // check values\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Compare points and return different dimensions.\n *\n * @param {Point} rhs The point to compare to.\n * @returns {number[]} The list of different dimensions.\n */\n compare(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return null;\n }\n // check values\n const diffDims = [];\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n diffDims.push(i);\n }\n }\n return diffDims;\n }\n\n /**\n * Get the 3D part of this point.\n *\n * @returns {Point3D} The Point3D.\n */\n get3D() {\n return new Point3D(this.get(0), this.get(1), this.get(2));\n }\n\n /**\n * Add another point to this one.\n *\n * @param {Point} rhs The point to add.\n * @returns {Point} The point representing the sum of both points.\n */\n add(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return null;\n }\n const values = [];\n const values0 = this.getValues();\n const values1 = rhs.getValues();\n for (let i = 0; i < values0.length; ++i) {\n values.push(values0[i] + values1[i]);\n }\n return new Point(values);\n }\n\n /**\n * Merge this point with a Point3D to create a new point.\n *\n * @param {Point3D} rhs The Point3D to merge with.\n * @returns {Point} The merge result.\n */\n mergeWith3D(rhs) {\n const values = this.getValues();\n values[0] = rhs.getX();\n values[1] = rhs.getY();\n values[2] = rhs.getZ();\n return new Point(values);\n }\n\n} // Point class\n","/**\n * Capitalise the first letter of a string.\n *\n * @param {string} string The string to capitalise the first letter.\n * @returns {string} The new string.\n */\nexport function capitaliseFirstLetter(string) {\n let res = string;\n if (string) {\n res = string.charAt(0).toUpperCase() + string.slice(1);\n }\n return res;\n}\n\n/**\n * Check if a string starts with the input element.\n *\n * @param {string} str The input string.\n * @param {string} search The searched start.\n * @param {number} [rawPos] The position in this string at which to begin\n * searching for searchString. Defaults to 0.\n * @returns {boolean} True if the input string starts with the searched string.\n */\nexport function startsWith(str, search, rawPos) {\n if (typeof str === 'undefined' || str === null ||\n typeof search === 'undefined' || search === null) {\n return false;\n }\n const pos = rawPos > 0 ? rawPos | 0 : 0;\n return str.substring(pos, pos + search.length) === search;\n}\n\n/**\n * Check if a string ends with the input element.\n *\n * @param {string} str The input string.\n * @param {string} search The searched ending.\n * @returns {boolean} True if the input string ends with the searched string.\n */\nexport function endsWith(str, search) {\n if (typeof str === 'undefined' || str === null ||\n typeof search === 'undefined' || search === null) {\n return false;\n }\n return str.substring(str.length - search.length) === search;\n}\n\n/**\n * Split key/value string: `key0=val00&key0=val01&key1=val10\n * will return `{key0 : [val00, val01], key1 : val1}`.\n *\n * @param {string} inputStr The string to split.\n * @returns {object} The split string.\n */\nexport function splitKeyValueString(inputStr) {\n // result\n const result = {};\n // check input string\n if (inputStr) {\n // split key/value pairs\n const pairs = inputStr.split('&');\n for (let i = 0; i < pairs.length; ++i) {\n const pair = pairs[i].split('=');\n // if the key does not exist, create it\n if (!result[pair[0]]) {\n result[pair[0]] = pair[1];\n } else {\n // make it an array\n if (!(result[pair[0]] instanceof Array)) {\n result[pair[0]] = [result[pair[0]]];\n }\n result[pair[0]].push(pair[1]);\n }\n }\n }\n return result;\n}\n\n/**\n * Get flags from an input string. Flags are words surrounded with curly\n * braces.\n *\n * @param {string} inputStr The input string.\n * @returns {string[]} An array of found flags.\n */\nexport function getFlags(inputStr) {\n const flags = [];\n // check input string\n if (inputStr === null || typeof inputStr === 'undefined') {\n return flags;\n }\n\n // word surrounded by curly braces\n const regex = /{(\\w+)}/g;\n\n let match = regex.exec(inputStr);\n while (match) {\n flags.push(match[1]); // first matching group\n match = regex.exec(inputStr);\n }\n return flags;\n}\n\n/**\n * Replace flags in a input string. Flags are keywords surrounded with curly\n * braces.\n *\n * @param {string} inputStr The input string.\n * @param {object} values A object of {value, unit}.\n * @returns {string} The result string.\n */\nexport function replaceFlags(inputStr, values) {\n let res = '';\n // check input string\n if (inputStr === null || typeof inputStr === 'undefined') {\n return res;\n }\n res = inputStr;\n // check values\n if (values === null || typeof values === 'undefined') {\n return res;\n }\n\n // loop through flags\n const keys = getFlags(inputStr);\n for (let i = 0; i < keys.length; ++i) {\n const valueObj = values[keys[i]];\n if (valueObj !== null && typeof valueObj !== 'undefined' &&\n valueObj.value !== null && typeof valueObj.value !== 'undefined') {\n // value string\n let valueStr = valueObj.value.toPrecision(4);\n // add unit if available\n // space or no space? Yes apart from degree...\n // check: https://en.wikipedia.org/wiki/Space_(punctuation)#Spaces_and_unit_symbols\n if (valueObj.unit !== null &&\n typeof valueObj.unit !== 'undefined' &&\n valueObj.unit.length !== 0) {\n if (valueObj.unit !== 'degree') {\n valueStr += ' ';\n }\n valueStr += valueObj.unit;\n }\n // flag to replace\n const flag = '{' + keys[i] + '}';\n // replace\n res = res.replace(flag, valueStr);\n }\n }\n // return\n return res;\n}\n\n/**\n * Get the root of an input path.\n * Splits using `/` as separator.\n *\n * @param {string} path The input path.\n * @returns {string} The input path without its last part.\n */\nexport function getRootPath(path) {\n return path.split('/').slice(0, -1).join('/');\n}\n\n/**\n * Get a file extension: anything after the last dot.\n * File name starting with a dot are discarded.\n * Extensions are expected to contain at least one letter.\n *\n * @param {string} filePath The file path containing the file name.\n * @returns {string} The lower case file extension or null for none.\n */\nexport function getFileExtension(filePath) {\n let ext = null;\n if (typeof filePath !== 'undefined' &&\n filePath !== null &&\n filePath[0] !== '.') {\n const pathSplit = filePath.toLowerCase().split('.');\n if (pathSplit.length !== 1) {\n ext = pathSplit.pop();\n // extension should contain at least one letter and no slash\n const regExp = /[a-z]/;\n if (!regExp.test(ext) || ext.includes('/')) {\n ext = null;\n }\n }\n }\n return ext;\n}\n\n/**\n * Convert a string to a Uint8Array.\n *\n * @param {string} str The string to convert.\n * @returns {Uint8Array} The Uint8Array.\n */\nexport function stringToUint8Array(str) {\n const arr = new Uint8Array(str.length);\n for (let i = 0, leni = str.length; i < leni; i++) {\n arr[i] = str.charCodeAt(i);\n }\n return arr;\n}\n\n/**\n * Round a float number to a given precision.\n *\n * Inspired from {@link https://stackoverflow.com/a/49729715/3639892}.\n *\n * Can be a solution to not have trailing zero as when\n * using toFixed or toPrecision.\n * '+number.toFixed(precision)' does not pass all the tests...\n *\n * @param {number} number The number to round.\n * @param {number} precision The rounding precision.\n * @returns {number} The rounded number.\n */\nexport function precisionRound(number, precision) {\n const factor = Math.pow(10, precision);\n const delta = 0.01 / factor; // fixes precisionRound(1.005, 2)\n return Math.round(number * factor + delta) / factor;\n}\n","import {stringToUint8Array} from './string';\n\n/**\n * Check if the first input array contains all the\n * elements of the second input array.\n *\n * @param {string[]} arr0 The test array.\n * @param {string[]} arr1 The elements to check in the first array.\n * @returns {boolean} True if all the elements of arr1 are included in arr0.\n */\nexport function arrayContains(arr0, arr1) {\n // check input\n if (arr0 === null ||\n arr1 === null ||\n typeof arr0 === 'undefined' ||\n typeof arr1 === 'undefined') {\n return false;\n }\n if (arr0.length === 0 ||\n arr1.length === 0 ||\n arr1.length > arr0.length) {\n return false;\n }\n // check values\n for (const itemArr1 of arr1) {\n if (!arr0.includes(itemArr1)) {\n return false;\n }\n }\n return true;\n}\n\n/**\n * Check for array equality after sorting.\n *\n * @param {Array} arr0 First array.\n * @param {Array} arr1 Second array.\n * @returns {boolean} True if both array are defined and contain same values.\n */\nexport function arraySortEquals(arr0, arr1) {\n if (arr0 === null ||\n arr1 === null ||\n typeof arr0 === 'undefined' ||\n typeof arr1 === 'undefined') {\n return false;\n }\n const arr0sorted = arr0.slice().sort();\n const arr1sorted = arr1.slice().sort();\n return arrayEquals(arr0sorted, arr1sorted);\n}\n\n/**\n * Check for array equality.\n *\n * @param {Array} arr0 First array.\n * @param {Array} arr1 Second array.\n * @returns {boolean} True if both array are defined and contain same values.\n */\nexport function arrayEquals(arr0, arr1) {\n if (arr0 === null ||\n arr1 === null ||\n typeof arr0 === 'undefined' ||\n typeof arr1 === 'undefined') {\n return false;\n }\n if (arr0.length !== arr1.length) {\n return false;\n }\n return arr0.every(function (element, index) {\n return element === arr1[index];\n });\n}\n\n/**\n * Convert a Uint8Array to a string.\n *\n * @param {Uint8Array} arr The array to convert.\n * @returns {string} The array as string.\n */\nexport function uint8ArrayToString(arr) {\n return String.fromCharCode.apply(String, arr);\n}\n\n/**\n * Array find in a subset of the input array.\n * Equivalent to: `arr.slice(start, end).find(callbackFn)`.\n *\n * @param {Uint8Array} arr The input array to search.\n * @param {Function} callbackFn The find function.\n * @param {number|undefined} start The array start index.\n * @param {number|undefined} [end] The array end index.\n * @returns {number|undefined} The index where the element was found.\n */\nexport function findInArraySubset(arr, callbackFn, start, end) {\n // check inputs\n if (typeof start === 'undefined' ||\n start < 0 ||\n start >= arr.length\n ) {\n start = 0;\n }\n if (typeof end === 'undefined' ||\n end <= start ||\n end > arr.length) {\n end = arr.length;\n }\n // run\n for (let i = start; i < end; ++i) {\n if (callbackFn(arr[i], i, arr)) {\n return i;\n }\n }\n return undefined;\n}\n\n/**\n * Get a find in array callback.\n *\n * @param {Uint8Array} arr1 The array to find.\n * @returns {Function} The find callback function.\n */\nexport function getFindArrayInArrayCallback(arr1) {\n return function (element, index, arr0) {\n for (let i = 0; i < arr1.length; ++i) {\n if (arr0[index + i] !== arr1[i]) {\n return false;\n }\n }\n return true;\n };\n}\n\n/**\n * Extract each element of a multipart ArrayBuffer.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/MIME#Multipart_messages}.\n *\n * @param {ArrayBuffer} arr The multipart array.\n * @returns {Array} The multipart parts as an array of object as\n * {'Content-Type', ..., data} (depending on header tags).\n */\nexport function parseMultipart(arr) {\n const u8Array = new Uint8Array(arr);\n\n const parts = [];\n // check input\n if (u8Array.length === 0) {\n return parts;\n }\n\n // \\r\\n\\r\\n\n const doubleReturnNew = new Uint8Array([0x0d, 0x0a, 0x0d, 0x0a]);\n const partHeaderEndCb = getFindArrayInArrayCallback(doubleReturnNew);\n\n // look for boundary in first part header\n let partHeaderEndIndex = findInArraySubset(\n u8Array, partHeaderEndCb, 0\n );\n if (typeof partHeaderEndIndex === 'undefined') {\n throw new Error('Can\\'t find the end of the first multipart header');\n }\n const firstPartHeader = u8Array.slice(0, partHeaderEndIndex);\n // switch to string to use split\n const lines = uint8ArrayToString(firstPartHeader).split('\\r\\n');\n // boundary should start with '--'\n let boundaryStr;\n for (let i = 0; i < lines.length; ++i) {\n if (lines[i][0] === '-' && lines[i][1] === '-') {\n boundaryStr = lines[i];\n break;\n }\n }\n if (typeof boundaryStr === 'undefined') {\n throw new Error('Can\\'t find the boundary between multi-parts');\n }\n const boundary = stringToUint8Array(boundaryStr);\n const boundaryCb = getFindArrayInArrayCallback(boundary);\n const boundaryLen = boundaryStr.length;\n\n // skip mime header\n let nextBoundaryIndex = findInArraySubset(\n u8Array, boundaryCb, 0\n );\n\n // loop through content\n while (typeof partHeaderEndIndex !== 'undefined') {\n const part = {};\n\n // header\n const partHeader = u8Array.slice(\n nextBoundaryIndex + boundaryLen, partHeaderEndIndex);\n // split into object\n const partHeaderLines =\n uint8ArrayToString(partHeader).split('\\r\\n');\n for (let l = 0; l < partHeaderLines.length; ++l) {\n const line = partHeaderLines[l];\n const semiColonIndex = line.indexOf(':');\n if (semiColonIndex !== -1) {\n const key = line.substring(0, semiColonIndex).trim();\n const val = line.substring(semiColonIndex + 1).trim();\n part[key] = val;\n }\n }\n\n // find next boundary\n nextBoundaryIndex = findInArraySubset(\n u8Array, boundaryCb, partHeaderEndIndex\n );\n // exit if none\n if (typeof nextBoundaryIndex === 'undefined') {\n break;\n }\n\n // get part\n // partHeaderEndIndex plus the size of the '\\r\\n\\r\\n' separator\n const dataBeginIndex = partHeaderEndIndex + 4;\n // nextBoundaryIndex minus the previous '\\r\\n'\n const dataEndIndex = nextBoundaryIndex - 2;\n if (dataBeginIndex < dataEndIndex) {\n part.data = u8Array.slice(dataBeginIndex, dataEndIndex).buffer;\n } else {\n part.data = new Uint8Array();\n }\n\n // store part\n parts.push(part);\n\n // find next part header end\n partHeaderEndIndex = findInArraySubset(\n u8Array, partHeaderEndCb,\n nextBoundaryIndex + boundaryLen\n );\n }\n\n return parts;\n}\n\n/**\n * Build a multipart message.\n *\n * Ref:\n * - {@link https://en.wikipedia.org/wiki/MIME#Multipart_messages},\n * - {@link https://hg.orthanc-server.com/orthanc-dicomweb/file/tip/Resources/Samples/JavaScript/stow-rs.js}.\n *\n * @param {Array} parts The message parts as an array of object containing\n * content headers and messages as the data property (as returned by parse).\n * @param {string} boundary The message boundary.\n * @returns {Uint8Array} The full multipart message.\n */\nexport function buildMultipart(parts, boundary) {\n const lineBreak = '\\r\\n';\n // build headers and calculate size\n let partsSize = 0;\n const headers = [];\n for (let i = 0; i < parts.length; ++i) {\n let headerStr = '';\n if (i !== 0) {\n headerStr += lineBreak;\n }\n headerStr += '--' + boundary + lineBreak;\n const partKeys = Object.keys(parts[i]);\n for (let k = 0; k < partKeys.length; ++k) {\n const key = partKeys[k];\n if (key !== 'data') {\n headerStr += key + ': ' + parts[i][key] + lineBreak;\n }\n }\n headerStr += lineBreak;\n const header = stringToUint8Array(headerStr);\n headers.push(header);\n partsSize += header.byteLength + parts[i].data.byteLength;\n }\n // build trailer\n const trailerStr = lineBreak + '--' + boundary + '--' + lineBreak;\n const trailer = stringToUint8Array(trailerStr);\n\n // final buffer\n const buffer = new Uint8Array(partsSize + trailer.byteLength);\n let offset = 0;\n // concatenate parts\n for (let j = 0; j < parts.length; ++j) {\n buffer.set(headers[j], offset);\n offset += headers[j].byteLength;\n buffer.set(new Uint8Array(parts[j].data), offset);\n offset += parts[j].data.byteLength;\n }\n // end buffer with trailer\n buffer.set(trailer, offset);\n\n // return\n return buffer;\n}\n","/* eslint-disable @stylistic/js/quote-props */\n/* eslint @stylistic/js/max-len:0 */\n\n/**\n * DICOM tag dictionary 2022a.\n * Generated using xml standard conversion from {@link https://github.com/ivmartel/dcmStdToJs} v0.1.0.\n *\n * Conversion changes:\n * - (vr) 'See Note' -> 'NONE',\n * - (vr) 'OB or OW' -> 'ox',\n * - (vr) 'US or SS' -> 'xs',\n * - (vr) 'US or OW' -> 'xx',\n * - (vr) 'US or SS or OW' -> 'xs',\n * - added 'GenericGroupLength' element to each group.\n *\n * Local changes:\n * - tag numbers with 'xx' were replaced with '00', 'xxx' with '001' and\n * 'xxxx' with '0004'.\n *\n * @type {Object>}\n */\nexport const dictionary = {\n '0000': {\n '0000': ['UL', '1', 'CommandGroupLength'],\n '0001': ['UL', '1', 'CommandLengthToEnd'],\n '0002': ['UI', '1', 'AffectedSOPClassUID'],\n '0003': ['UI', '1', 'RequestedSOPClassUID'],\n '0010': ['SH', '1', 'CommandRecognitionCode'],\n '0100': ['US', '1', 'CommandField'],\n '0110': ['US', '1', 'MessageID'],\n '0120': ['US', '1', 'MessageIDBeingRespondedTo'],\n '0200': ['AE', '1', 'Initiator'],\n '0300': ['AE', '1', 'Receiver'],\n '0400': ['AE', '1', 'FindLocation'],\n '0600': ['AE', '1', 'MoveDestination'],\n '0700': ['US', '1', 'Priority'],\n '0800': ['US', '1', 'CommandDataSetType'],\n '0850': ['US', '1', 'NumberOfMatches'],\n '0860': ['US', '1', 'ResponseSequenceNumber'],\n '0900': ['US', '1', 'Status'],\n '0901': ['AT', '1-n', 'OffendingElement'],\n '0902': ['LO', '1', 'ErrorComment'],\n '0903': ['US', '1', 'ErrorID'],\n '1000': ['UI', '1', 'AffectedSOPInstanceUID'],\n '1001': ['UI', '1', 'RequestedSOPInstanceUID'],\n '1002': ['US', '1', 'EventTypeID'],\n '1005': ['AT', '1-n', 'AttributeIdentifierList'],\n '1008': ['US', '1', 'ActionTypeID'],\n '1020': ['US', '1', 'NumberOfRemainingSuboperations'],\n '1021': ['US', '1', 'NumberOfCompletedSuboperations'],\n '1022': ['US', '1', 'NumberOfFailedSuboperations'],\n '1023': ['US', '1', 'NumberOfWarningSuboperations'],\n '1030': ['AE', '1', 'MoveOriginatorApplicationEntityTitle'],\n '1031': ['US', '1', 'MoveOriginatorMessageID'],\n '4000': ['LT', '1', 'DialogReceiver'],\n '4010': ['LT', '1', 'TerminalType'],\n '5010': ['SH', '1', 'MessageSetID'],\n '5020': ['SH', '1', 'EndMessageID'],\n '5110': ['LT', '1', 'DisplayFormat'],\n '5120': ['LT', '1', 'PagePositionID'],\n '5130': ['CS', '1', 'TextFormatID'],\n '5140': ['CS', '1', 'NormalReverse'],\n '5150': ['CS', '1', 'AddGrayScale'],\n '5160': ['CS', '1', 'Borders'],\n '5170': ['IS', '1', 'Copies'],\n '5180': ['CS', '1', 'CommandMagnificationType'],\n '5190': ['CS', '1', 'Erase'],\n '51A0': ['CS', '1', 'Print'],\n '51B0': ['US', '1-n', 'Overlays']\n },\n '0002': {\n '0000': ['UL', '1', 'FileMetaInformationGroupLength'],\n '0001': ['OB', '1', 'FileMetaInformationVersion'],\n '0002': ['UI', '1', 'MediaStorageSOPClassUID'],\n '0003': ['UI', '1', 'MediaStorageSOPInstanceUID'],\n '0010': ['UI', '1', 'TransferSyntaxUID'],\n '0012': ['UI', '1', 'ImplementationClassUID'],\n '0013': ['SH', '1', 'ImplementationVersionName'],\n '0016': ['AE', '1', 'SourceApplicationEntityTitle'],\n '0017': ['AE', '1', 'SendingApplicationEntityTitle'],\n '0018': ['AE', '1', 'ReceivingApplicationEntityTitle'],\n '0026': ['UR', '1', 'SourcePresentationAddress'],\n '0027': ['UR', '1', 'SendingPresentationAddress'],\n '0028': ['UR', '1', 'ReceivingPresentationAddress'],\n '0031': ['OB', '1', 'RTVMetaInformationVersion'],\n '0032': ['UI', '1', 'RTVCommunicationSOPClassUID'],\n '0033': ['UI', '1', 'RTVCommunicationSOPInstanceUID'],\n '0035': ['OB', '1', 'RTVSourceIdentifier'],\n '0036': ['OB', '1', 'RTVFlowIdentifier'],\n '0037': ['UL', '1', 'RTVFlowRTPSamplingRate'],\n '0038': ['FD', '1', 'RTVFlowActualFrameDuration'],\n '0100': ['UI', '1', 'PrivateInformationCreatorUID'],\n '0102': ['OB', '1', 'PrivateInformation']\n },\n '0004': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '1130': ['CS', '1', 'FileSetID'],\n '1141': ['CS', '1-8', 'FileSetDescriptorFileID'],\n '1142': ['CS', '1', 'SpecificCharacterSetOfFileSetDescriptorFile'],\n '1200': ['UL', '1', 'OffsetOfTheFirstDirectoryRecordOfTheRootDirectoryEntity'],\n '1202': ['UL', '1', 'OffsetOfTheLastDirectoryRecordOfTheRootDirectoryEntity'],\n '1212': ['US', '1', 'FileSetConsistencyFlag'],\n '1220': ['SQ', '1', 'DirectoryRecordSequence'],\n '1400': ['UL', '1', 'OffsetOfTheNextDirectoryRecord'],\n '1410': ['US', '1', 'RecordInUseFlag'],\n '1420': ['UL', '1', 'OffsetOfReferencedLowerLevelDirectoryEntity'],\n '1430': ['CS', '1', 'DirectoryRecordType'],\n '1432': ['UI', '1', 'PrivateRecordUID'],\n '1500': ['CS', '1-8', 'ReferencedFileID'],\n '1504': ['UL', '1', 'MRDRDirectoryRecordOffset'],\n '1510': ['UI', '1', 'ReferencedSOPClassUIDInFile'],\n '1511': ['UI', '1', 'ReferencedSOPInstanceUIDInFile'],\n '1512': ['UI', '1', 'ReferencedTransferSyntaxUIDInFile'],\n '151A': ['UI', '1-n', 'ReferencedRelatedGeneralSOPClassUIDInFile'],\n '1600': ['UL', '1', 'NumberOfReferences']\n },\n '0008': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['UL', '1', 'LengthToEnd'],\n '0005': ['CS', '1-n', 'SpecificCharacterSet'],\n '0006': ['SQ', '1', 'LanguageCodeSequence'],\n '0008': ['CS', '2-n', 'ImageType'],\n '0010': ['SH', '1', 'RecognitionCode'],\n '0012': ['DA', '1', 'InstanceCreationDate'],\n '0013': ['TM', '1', 'InstanceCreationTime'],\n '0014': ['UI', '1', 'InstanceCreatorUID'],\n '0015': ['DT', '1', 'InstanceCoercionDateTime'],\n '0016': ['UI', '1', 'SOPClassUID'],\n '0018': ['UI', '1', 'SOPInstanceUID'],\n '001A': ['UI', '1-n', 'RelatedGeneralSOPClassUID'],\n '001B': ['UI', '1', 'OriginalSpecializedSOPClassUID'],\n '0020': ['DA', '1', 'StudyDate'],\n '0021': ['DA', '1', 'SeriesDate'],\n '0022': ['DA', '1', 'AcquisitionDate'],\n '0023': ['DA', '1', 'ContentDate'],\n '0024': ['DA', '1', 'OverlayDate'],\n '0025': ['DA', '1', 'CurveDate'],\n '002A': ['DT', '1', 'AcquisitionDateTime'],\n '0030': ['TM', '1', 'StudyTime'],\n '0031': ['TM', '1', 'SeriesTime'],\n '0032': ['TM', '1', 'AcquisitionTime'],\n '0033': ['TM', '1', 'ContentTime'],\n '0034': ['TM', '1', 'OverlayTime'],\n '0035': ['TM', '1', 'CurveTime'],\n '0040': ['US', '1', 'DataSetType'],\n '0041': ['LO', '1', 'DataSetSubtype'],\n '0042': ['CS', '1', 'NuclearMedicineSeriesType'],\n '0050': ['SH', '1', 'AccessionNumber'],\n '0051': ['SQ', '1', 'IssuerOfAccessionNumberSequence'],\n '0052': ['CS', '1', 'QueryRetrieveLevel'],\n '0053': ['CS', '1', 'QueryRetrieveView'],\n '0054': ['AE', '1-n', 'RetrieveAETitle'],\n '0055': ['AE', '1', 'StationAETitle'],\n '0056': ['CS', '1', 'InstanceAvailability'],\n '0058': ['UI', '1-n', 'FailedSOPInstanceUIDList'],\n '0060': ['CS', '1', 'Modality'],\n '0061': ['CS', '1-n', 'ModalitiesInStudy'],\n '0062': ['UI', '1-n', 'SOPClassesInStudy'],\n '0063': ['SQ', '1', 'AnatomicRegionsInStudyCodeSequence'],\n '0064': ['CS', '1', 'ConversionType'],\n '0068': ['CS', '1', 'PresentationIntentType'],\n '0070': ['LO', '1', 'Manufacturer'],\n '0080': ['LO', '1', 'InstitutionName'],\n '0081': ['ST', '1', 'InstitutionAddress'],\n '0082': ['SQ', '1', 'InstitutionCodeSequence'],\n '0090': ['PN', '1', 'ReferringPhysicianName'],\n '0092': ['ST', '1', 'ReferringPhysicianAddress'],\n '0094': ['SH', '1-n', 'ReferringPhysicianTelephoneNumbers'],\n '0096': ['SQ', '1', 'ReferringPhysicianIdentificationSequence'],\n '009C': ['PN', '1-n', 'ConsultingPhysicianName'],\n '009D': ['SQ', '1', 'ConsultingPhysicianIdentificationSequence'],\n '0100': ['SH', '1', 'CodeValue'],\n '0101': ['LO', '1', 'ExtendedCodeValue'],\n '0102': ['SH', '1', 'CodingSchemeDesignator'],\n '0103': ['SH', '1', 'CodingSchemeVersion'],\n '0104': ['LO', '1', 'CodeMeaning'],\n '0105': ['CS', '1', 'MappingResource'],\n '0106': ['DT', '1', 'ContextGroupVersion'],\n '0107': ['DT', '1', 'ContextGroupLocalVersion'],\n '0108': ['LT', '1', 'ExtendedCodeMeaning'],\n '0109': ['SQ', '1', 'CodingSchemeResourcesSequence'],\n '010A': ['CS', '1', 'CodingSchemeURLType'],\n '010B': ['CS', '1', 'ContextGroupExtensionFlag'],\n '010C': ['UI', '1', 'CodingSchemeUID'],\n '010D': ['UI', '1', 'ContextGroupExtensionCreatorUID'],\n '010E': ['UR', '1', 'CodingSchemeURL'],\n '010F': ['CS', '1', 'ContextIdentifier'],\n '0110': ['SQ', '1', 'CodingSchemeIdentificationSequence'],\n '0112': ['LO', '1', 'CodingSchemeRegistry'],\n '0114': ['ST', '1', 'CodingSchemeExternalID'],\n '0115': ['ST', '1', 'CodingSchemeName'],\n '0116': ['ST', '1', 'CodingSchemeResponsibleOrganization'],\n '0117': ['UI', '1', 'ContextUID'],\n '0118': ['UI', '1', 'MappingResourceUID'],\n '0119': ['UC', '1', 'LongCodeValue'],\n '0120': ['UR', '1', 'URNCodeValue'],\n '0121': ['SQ', '1', 'EquivalentCodeSequence'],\n '0122': ['LO', '1', 'MappingResourceName'],\n '0123': ['SQ', '1', 'ContextGroupIdentificationSequence'],\n '0124': ['SQ', '1', 'MappingResourceIdentificationSequence'],\n '0201': ['SH', '1', 'TimezoneOffsetFromUTC'],\n '0202': ['', '', ''],\n '0220': ['SQ', '1', 'ResponsibleGroupCodeSequence'],\n '0221': ['CS', '1', 'EquipmentModality'],\n '0222': ['LO', '1', 'ManufacturerRelatedModelGroup'],\n '0300': ['SQ', '1', 'PrivateDataElementCharacteristicsSequence'],\n '0301': ['US', '1', 'PrivateGroupReference'],\n '0302': ['LO', '1', 'PrivateCreatorReference'],\n '0303': ['CS', '1', 'BlockIdentifyingInformationStatus'],\n '0304': ['US', '1-n', 'NonidentifyingPrivateElements'],\n '0305': ['SQ', '1', 'DeidentificationActionSequence'],\n '0306': ['US', '1-n', 'IdentifyingPrivateElements'],\n '0307': ['CS', '1', 'DeidentificationAction'],\n '0308': ['US', '1', 'PrivateDataElement'],\n '0309': ['UL', '1-3', 'PrivateDataElementValueMultiplicity'],\n '030A': ['CS', '1', 'PrivateDataElementValueRepresentation'],\n '030B': ['UL', '1-2', 'PrivateDataElementNumberOfItems'],\n '030C': ['UC', '1', 'PrivateDataElementName'],\n '030D': ['UC', '1', 'PrivateDataElementKeyword'],\n '030E': ['UT', '1', 'PrivateDataElementDescription'],\n '030F': ['UT', '1', 'PrivateDataElementEncoding'],\n '0310': ['SQ', '1', 'PrivateDataElementDefinitionSequence'],\n '1000': ['AE', '1', 'NetworkID'],\n '1010': ['SH', '1', 'StationName'],\n '1030': ['LO', '1', 'StudyDescription'],\n '1032': ['SQ', '1', 'ProcedureCodeSequence'],\n '103E': ['LO', '1', 'SeriesDescription'],\n '103F': ['SQ', '1', 'SeriesDescriptionCodeSequence'],\n '1040': ['LO', '1', 'InstitutionalDepartmentName'],\n '1041': ['SQ', '1', 'InstitutionalDepartmentTypeCodeSequence'],\n '1048': ['PN', '1-n', 'PhysiciansOfRecord'],\n '1049': ['SQ', '1', 'PhysiciansOfRecordIdentificationSequence'],\n '1050': ['PN', '1-n', 'PerformingPhysicianName'],\n '1052': ['SQ', '1', 'PerformingPhysicianIdentificationSequence'],\n '1060': ['PN', '1-n', 'NameOfPhysiciansReadingStudy'],\n '1062': ['SQ', '1', 'PhysiciansReadingStudyIdentificationSequence'],\n '1070': ['PN', '1-n', 'OperatorsName'],\n '1072': ['SQ', '1', 'OperatorIdentificationSequence'],\n '1080': ['LO', '1-n', 'AdmittingDiagnosesDescription'],\n '1084': ['SQ', '1', 'AdmittingDiagnosesCodeSequence'],\n '1090': ['LO', '1', 'ManufacturerModelName'],\n '1100': ['SQ', '1', 'ReferencedResultsSequence'],\n '1110': ['SQ', '1', 'ReferencedStudySequence'],\n '1111': ['SQ', '1', 'ReferencedPerformedProcedureStepSequence'],\n '1115': ['SQ', '1', 'ReferencedSeriesSequence'],\n '1120': ['SQ', '1', 'ReferencedPatientSequence'],\n '1125': ['SQ', '1', 'ReferencedVisitSequence'],\n '1130': ['SQ', '1', 'ReferencedOverlaySequence'],\n '1134': ['SQ', '1', 'ReferencedStereometricInstanceSequence'],\n '113A': ['SQ', '1', 'ReferencedWaveformSequence'],\n '1140': ['SQ', '1', 'ReferencedImageSequence'],\n '1145': ['SQ', '1', 'ReferencedCurveSequence'],\n '114A': ['SQ', '1', 'ReferencedInstanceSequence'],\n '114B': ['SQ', '1', 'ReferencedRealWorldValueMappingInstanceSequence'],\n '1150': ['UI', '1', 'ReferencedSOPClassUID'],\n '1155': ['UI', '1', 'ReferencedSOPInstanceUID'],\n '1156': ['SQ', '1', 'DefinitionSourceSequence'],\n '115A': ['UI', '1-n', 'SOPClassesSupported'],\n '1160': ['IS', '1-n', 'ReferencedFrameNumber'],\n '1161': ['UL', '1-n', 'SimpleFrameList'],\n '1162': ['UL', '3-3n', 'CalculatedFrameList'],\n '1163': ['FD', '2', 'TimeRange'],\n '1164': ['SQ', '1', 'FrameExtractionSequence'],\n '1167': ['UI', '1', 'MultiFrameSourceSOPInstanceUID'],\n '1190': ['UR', '1', 'RetrieveURL'],\n '1195': ['UI', '1', 'TransactionUID'],\n '1196': ['US', '1', 'WarningReason'],\n '1197': ['US', '1', 'FailureReason'],\n '1198': ['SQ', '1', 'FailedSOPSequence'],\n '1199': ['SQ', '1', 'ReferencedSOPSequence'],\n '119A': ['SQ', '1', 'OtherFailuresSequence'],\n '1200': ['SQ', '1', 'StudiesContainingOtherReferencedInstancesSequence'],\n '1250': ['SQ', '1', 'RelatedSeriesSequence'],\n '2110': ['CS', '1', 'LossyImageCompressionRetired'],\n '2111': ['ST', '1', 'DerivationDescription'],\n '2112': ['SQ', '1', 'SourceImageSequence'],\n '2120': ['SH', '1', 'StageName'],\n '2122': ['IS', '1', 'StageNumber'],\n '2124': ['IS', '1', 'NumberOfStages'],\n '2127': ['SH', '1', 'ViewName'],\n '2128': ['IS', '1', 'ViewNumber'],\n '2129': ['IS', '1', 'NumberOfEventTimers'],\n '212A': ['IS', '1', 'NumberOfViewsInStage'],\n '2130': ['DS', '1-n', 'EventElapsedTimes'],\n '2132': ['LO', '1-n', 'EventTimerNames'],\n '2133': ['SQ', '1', 'EventTimerSequence'],\n '2134': ['FD', '1', 'EventTimeOffset'],\n '2135': ['SQ', '1', 'EventCodeSequence'],\n '2142': ['IS', '1', 'StartTrim'],\n '2143': ['IS', '1', 'StopTrim'],\n '2144': ['IS', '1', 'RecommendedDisplayFrameRate'],\n '2200': ['CS', '1', 'TransducerPosition'],\n '2204': ['CS', '1', 'TransducerOrientation'],\n '2208': ['CS', '1', 'AnatomicStructure'],\n '2218': ['SQ', '1', 'AnatomicRegionSequence'],\n '2220': ['SQ', '1', 'AnatomicRegionModifierSequence'],\n '2228': ['SQ', '1', 'PrimaryAnatomicStructureSequence'],\n '2229': ['SQ', '1', 'AnatomicStructureSpaceOrRegionSequence'],\n '2230': ['SQ', '1', 'PrimaryAnatomicStructureModifierSequence'],\n '2240': ['SQ', '1', 'TransducerPositionSequence'],\n '2242': ['SQ', '1', 'TransducerPositionModifierSequence'],\n '2244': ['SQ', '1', 'TransducerOrientationSequence'],\n '2246': ['SQ', '1', 'TransducerOrientationModifierSequence'],\n '2251': ['SQ', '1', 'AnatomicStructureSpaceOrRegionCodeSequenceTrial'],\n '2253': ['SQ', '1', 'AnatomicPortalOfEntranceCodeSequenceTrial'],\n '2255': ['SQ', '1', 'AnatomicApproachDirectionCodeSequenceTrial'],\n '2256': ['ST', '1', 'AnatomicPerspectiveDescriptionTrial'],\n '2257': ['SQ', '1', 'AnatomicPerspectiveCodeSequenceTrial'],\n '2258': ['ST', '1', 'AnatomicLocationOfExaminingInstrumentDescriptionTrial'],\n '2259': ['SQ', '1', 'AnatomicLocationOfExaminingInstrumentCodeSequenceTrial'],\n '225A': ['SQ', '1', 'AnatomicStructureSpaceOrRegionModifierCodeSequenceTrial'],\n '225C': ['SQ', '1', 'OnAxisBackgroundAnatomicStructureCodeSequenceTrial'],\n '3001': ['SQ', '1', 'AlternateRepresentationSequence'],\n '3002': ['UI', '1-n', 'AvailableTransferSyntaxUID'],\n '3010': ['UI', '1-n', 'IrradiationEventUID'],\n '3011': ['SQ', '1', 'SourceIrradiationEventSequence'],\n '3012': ['UI', '1', 'RadiopharmaceuticalAdministrationEventUID'],\n '4000': ['LT', '1', 'IdentifyingComments'],\n '9007': ['CS', '4', 'FrameType'],\n '9092': ['SQ', '1', 'ReferencedImageEvidenceSequence'],\n '9121': ['SQ', '1', 'ReferencedRawDataSequence'],\n '9123': ['UI', '1', 'CreatorVersionUID'],\n '9124': ['SQ', '1', 'DerivationImageSequence'],\n '9154': ['SQ', '1', 'SourceImageEvidenceSequence'],\n '9205': ['CS', '1', 'PixelPresentation'],\n '9206': ['CS', '1', 'VolumetricProperties'],\n '9207': ['CS', '1', 'VolumeBasedCalculationTechnique'],\n '9208': ['CS', '1', 'ComplexImageComponent'],\n '9209': ['CS', '1', 'AcquisitionContrast'],\n '9215': ['SQ', '1', 'DerivationCodeSequence'],\n '9237': ['SQ', '1', 'ReferencedPresentationStateSequence'],\n '9410': ['SQ', '1', 'ReferencedOtherPlaneSequence'],\n '9458': ['SQ', '1', 'FrameDisplaySequence'],\n '9459': ['FL', '1', 'RecommendedDisplayFrameRateInFloat'],\n '9460': ['CS', '1', 'SkipFrameRangeFlag']\n },\n '0010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['PN', '1', 'PatientName'],\n '0020': ['LO', '1', 'PatientID'],\n '0021': ['LO', '1', 'IssuerOfPatientID'],\n '0022': ['CS', '1', 'TypeOfPatientID'],\n '0024': ['SQ', '1', 'IssuerOfPatientIDQualifiersSequence'],\n '0026': ['SQ', '1', 'SourcePatientGroupIdentificationSequence'],\n '0027': ['SQ', '1', 'GroupOfPatientsIdentificationSequence'],\n '0028': ['US', '3', 'SubjectRelativePositionInImage'],\n '0030': ['DA', '1', 'PatientBirthDate'],\n '0032': ['TM', '1', 'PatientBirthTime'],\n '0033': ['LO', '1', 'PatientBirthDateInAlternativeCalendar'],\n '0034': ['LO', '1', 'PatientDeathDateInAlternativeCalendar'],\n '0035': ['CS', '1', 'PatientAlternativeCalendar'],\n '0040': ['CS', '1', 'PatientSex'],\n '0050': ['SQ', '1', 'PatientInsurancePlanCodeSequence'],\n '0101': ['SQ', '1', 'PatientPrimaryLanguageCodeSequence'],\n '0102': ['SQ', '1', 'PatientPrimaryLanguageModifierCodeSequence'],\n '0200': ['CS', '1', 'QualityControlSubject'],\n '0201': ['SQ', '1', 'QualityControlSubjectTypeCodeSequence'],\n '0212': ['UC', '1', 'StrainDescription'],\n '0213': ['LO', '1', 'StrainNomenclature'],\n '0214': ['LO', '1', 'StrainStockNumber'],\n '0215': ['SQ', '1', 'StrainSourceRegistryCodeSequence'],\n '0216': ['SQ', '1', 'StrainStockSequence'],\n '0217': ['LO', '1', 'StrainSource'],\n '0218': ['UT', '1', 'StrainAdditionalInformation'],\n '0219': ['SQ', '1', 'StrainCodeSequence'],\n '0221': ['SQ', '1', 'GeneticModificationsSequence'],\n '0222': ['UC', '1', 'GeneticModificationsDescription'],\n '0223': ['LO', '1', 'GeneticModificationsNomenclature'],\n '0229': ['SQ', '1', 'GeneticModificationsCodeSequence'],\n '1000': ['LO', '1-n', 'OtherPatientIDs'],\n '1001': ['PN', '1-n', 'OtherPatientNames'],\n '1002': ['SQ', '1', 'OtherPatientIDsSequence'],\n '1005': ['PN', '1', 'PatientBirthName'],\n '1010': ['AS', '1', 'PatientAge'],\n '1020': ['DS', '1', 'PatientSize'],\n '1021': ['SQ', '1', 'PatientSizeCodeSequence'],\n '1022': ['DS', '1', 'PatientBodyMassIndex'],\n '1023': ['DS', '1', 'MeasuredAPDimension'],\n '1024': ['DS', '1', 'MeasuredLateralDimension'],\n '1030': ['DS', '1', 'PatientWeight'],\n '1040': ['LO', '1', 'PatientAddress'],\n '1050': ['LO', '1-n', 'InsurancePlanIdentification'],\n '1060': ['PN', '1', 'PatientMotherBirthName'],\n '1080': ['LO', '1', 'MilitaryRank'],\n '1081': ['LO', '1', 'BranchOfService'],\n '1090': ['LO', '1', 'MedicalRecordLocator'],\n '1100': ['SQ', '1', 'ReferencedPatientPhotoSequence'],\n '2000': ['LO', '1-n', 'MedicalAlerts'],\n '2110': ['LO', '1-n', 'Allergies'],\n '2150': ['LO', '1', 'CountryOfResidence'],\n '2152': ['LO', '1', 'RegionOfResidence'],\n '2154': ['SH', '1-n', 'PatientTelephoneNumbers'],\n '2155': ['LT', '1', 'PatientTelecomInformation'],\n '2160': ['SH', '1', 'EthnicGroup'],\n '2180': ['SH', '1', 'Occupation'],\n '21A0': ['CS', '1', 'SmokingStatus'],\n '21B0': ['LT', '1', 'AdditionalPatientHistory'],\n '21C0': ['US', '1', 'PregnancyStatus'],\n '21D0': ['DA', '1', 'LastMenstrualDate'],\n '21F0': ['LO', '1', 'PatientReligiousPreference'],\n '2201': ['LO', '1', 'PatientSpeciesDescription'],\n '2202': ['SQ', '1', 'PatientSpeciesCodeSequence'],\n '2203': ['CS', '1', 'PatientSexNeutered'],\n '2210': ['CS', '1', 'AnatomicalOrientationType'],\n '2292': ['LO', '1', 'PatientBreedDescription'],\n '2293': ['SQ', '1', 'PatientBreedCodeSequence'],\n '2294': ['SQ', '1', 'BreedRegistrationSequence'],\n '2295': ['LO', '1', 'BreedRegistrationNumber'],\n '2296': ['SQ', '1', 'BreedRegistryCodeSequence'],\n '2297': ['PN', '1', 'ResponsiblePerson'],\n '2298': ['CS', '1', 'ResponsiblePersonRole'],\n '2299': ['LO', '1', 'ResponsibleOrganization'],\n '4000': ['LT', '1', 'PatientComments'],\n '9431': ['FL', '1', 'ExaminedBodyThickness']\n },\n '0012': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['LO', '1', 'ClinicalTrialSponsorName'],\n '0020': ['LO', '1', 'ClinicalTrialProtocolID'],\n '0021': ['LO', '1', 'ClinicalTrialProtocolName'],\n '0030': ['LO', '1', 'ClinicalTrialSiteID'],\n '0031': ['LO', '1', 'ClinicalTrialSiteName'],\n '0040': ['LO', '1', 'ClinicalTrialSubjectID'],\n '0042': ['LO', '1', 'ClinicalTrialSubjectReadingID'],\n '0050': ['LO', '1', 'ClinicalTrialTimePointID'],\n '0051': ['ST', '1', 'ClinicalTrialTimePointDescription'],\n '0052': ['FD', '1', 'LongitudinalTemporalOffsetFromEvent'],\n '0053': ['CS', '1', 'LongitudinalTemporalEventType'],\n '0060': ['LO', '1', 'ClinicalTrialCoordinatingCenterName'],\n '0062': ['CS', '1', 'PatientIdentityRemoved'],\n '0063': ['LO', '1-n', 'DeidentificationMethod'],\n '0064': ['SQ', '1', 'DeidentificationMethodCodeSequence'],\n '0071': ['LO', '1', 'ClinicalTrialSeriesID'],\n '0072': ['LO', '1', 'ClinicalTrialSeriesDescription'],\n '0081': ['LO', '1', 'ClinicalTrialProtocolEthicsCommitteeName'],\n '0082': ['LO', '1', 'ClinicalTrialProtocolEthicsCommitteeApprovalNumber'],\n '0083': ['SQ', '1', 'ConsentForClinicalTrialUseSequence'],\n '0084': ['CS', '1', 'DistributionType'],\n '0085': ['CS', '1', 'ConsentForDistributionFlag'],\n '0086': ['DA', '1', 'EthicsCommitteeApprovalEffectivenessStartDate'],\n '0087': ['DA', '1', 'EthicsCommitteeApprovalEffectivenessEndDate']\n },\n '0014': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0023': ['ST', '1', 'CADFileFormat'],\n '0024': ['ST', '1', 'ComponentReferenceSystem'],\n '0025': ['ST', '1', 'ComponentManufacturingProcedure'],\n '0028': ['ST', '1', 'ComponentManufacturer'],\n '0030': ['DS', '1-n', 'MaterialThickness'],\n '0032': ['DS', '1-n', 'MaterialPipeDiameter'],\n '0034': ['DS', '1-n', 'MaterialIsolationDiameter'],\n '0042': ['ST', '1', 'MaterialGrade'],\n '0044': ['ST', '1', 'MaterialPropertiesDescription'],\n '0045': ['ST', '1', 'MaterialPropertiesFileFormatRetired'],\n '0046': ['LT', '1', 'MaterialNotes'],\n '0050': ['CS', '1', 'ComponentShape'],\n '0052': ['CS', '1', 'CurvatureType'],\n '0054': ['DS', '1', 'OuterDiameter'],\n '0056': ['DS', '1', 'InnerDiameter'],\n '0100': ['LO', '1-n', 'ComponentWelderIDs'],\n '0101': ['CS', '1', 'SecondaryApprovalStatus'],\n '0102': ['DA', '1', 'SecondaryReviewDate'],\n '0103': ['TM', '1', 'SecondaryReviewTime'],\n '0104': ['PN', '1', 'SecondaryReviewerName'],\n '0105': ['ST', '1', 'RepairID'],\n '0106': ['SQ', '1', 'MultipleComponentApprovalSequence'],\n '0107': ['CS', '1-n', 'OtherApprovalStatus'],\n '0108': ['CS', '1-n', 'OtherSecondaryApprovalStatus'],\n '1010': ['ST', '1', 'ActualEnvironmentalConditions'],\n '1020': ['DA', '1', 'ExpiryDate'],\n '1040': ['ST', '1', 'EnvironmentalConditions'],\n '2002': ['SQ', '1', 'EvaluatorSequence'],\n '2004': ['IS', '1', 'EvaluatorNumber'],\n '2006': ['PN', '1', 'EvaluatorName'],\n '2008': ['IS', '1', 'EvaluationAttempt'],\n '2012': ['SQ', '1', 'IndicationSequence'],\n '2014': ['IS', '1', 'IndicationNumber'],\n '2016': ['SH', '1', 'IndicationLabel'],\n '2018': ['ST', '1', 'IndicationDescription'],\n '201A': ['CS', '1-n', 'IndicationType'],\n '201C': ['CS', '1', 'IndicationDisposition'],\n '201E': ['SQ', '1', 'IndicationROISequence'],\n '2030': ['SQ', '1', 'IndicationPhysicalPropertySequence'],\n '2032': ['SH', '1', 'PropertyLabel'],\n '2202': ['IS', '1', 'CoordinateSystemNumberOfAxes'],\n '2204': ['SQ', '1', 'CoordinateSystemAxesSequence'],\n '2206': ['ST', '1', 'CoordinateSystemAxisDescription'],\n '2208': ['CS', '1', 'CoordinateSystemDataSetMapping'],\n '220A': ['IS', '1', 'CoordinateSystemAxisNumber'],\n '220C': ['CS', '1', 'CoordinateSystemAxisType'],\n '220E': ['CS', '1', 'CoordinateSystemAxisUnits'],\n '2210': ['OB', '1', 'CoordinateSystemAxisValues'],\n '2220': ['SQ', '1', 'CoordinateSystemTransformSequence'],\n '2222': ['ST', '1', 'TransformDescription'],\n '2224': ['IS', '1', 'TransformNumberOfAxes'],\n '2226': ['IS', '1-n', 'TransformOrderOfAxes'],\n '2228': ['CS', '1', 'TransformedAxisUnits'],\n '222A': ['DS', '1-n', 'CoordinateSystemTransformRotationAndScaleMatrix'],\n '222C': ['DS', '1-n', 'CoordinateSystemTransformTranslationMatrix'],\n '3011': ['DS', '1', 'InternalDetectorFrameTime'],\n '3012': ['DS', '1', 'NumberOfFramesIntegrated'],\n '3020': ['SQ', '1', 'DetectorTemperatureSequence'],\n '3022': ['ST', '1', 'SensorName'],\n '3024': ['DS', '1', 'HorizontalOffsetOfSensor'],\n '3026': ['DS', '1', 'VerticalOffsetOfSensor'],\n '3028': ['DS', '1', 'SensorTemperature'],\n '3040': ['SQ', '1', 'DarkCurrentSequence'],\n '3050': ['ox', '1', 'DarkCurrentCounts'],\n '3060': ['SQ', '1', 'GainCorrectionReferenceSequence'],\n '3070': ['ox', '1', 'AirCounts'],\n '3071': ['DS', '1', 'KVUsedInGainCalibration'],\n '3072': ['DS', '1', 'MAUsedInGainCalibration'],\n '3073': ['DS', '1', 'NumberOfFramesUsedForIntegration'],\n '3074': ['LO', '1', 'FilterMaterialUsedInGainCalibration'],\n '3075': ['DS', '1', 'FilterThicknessUsedInGainCalibration'],\n '3076': ['DA', '1', 'DateOfGainCalibration'],\n '3077': ['TM', '1', 'TimeOfGainCalibration'],\n '3080': ['OB', '1', 'BadPixelImage'],\n '3099': ['LT', '1', 'CalibrationNotes'],\n '3100': ['LT', '1', 'LinearityCorrectionTechnique'],\n '3101': ['LT', '1', 'BeamHardeningCorrectionTechnique'],\n '4002': ['SQ', '1', 'PulserEquipmentSequence'],\n '4004': ['CS', '1', 'PulserType'],\n '4006': ['LT', '1', 'PulserNotes'],\n '4008': ['SQ', '1', 'ReceiverEquipmentSequence'],\n '400A': ['CS', '1', 'AmplifierType'],\n '400C': ['LT', '1', 'ReceiverNotes'],\n '400E': ['SQ', '1', 'PreAmplifierEquipmentSequence'],\n '400F': ['LT', '1', 'PreAmplifierNotes'],\n '4010': ['SQ', '1', 'TransmitTransducerSequence'],\n '4011': ['SQ', '1', 'ReceiveTransducerSequence'],\n '4012': ['US', '1', 'NumberOfElements'],\n '4013': ['CS', '1', 'ElementShape'],\n '4014': ['DS', '1', 'ElementDimensionA'],\n '4015': ['DS', '1', 'ElementDimensionB'],\n '4016': ['DS', '1', 'ElementPitchA'],\n '4017': ['DS', '1', 'MeasuredBeamDimensionA'],\n '4018': ['DS', '1', 'MeasuredBeamDimensionB'],\n '4019': ['DS', '1', 'LocationOfMeasuredBeamDiameter'],\n '401A': ['DS', '1', 'NominalFrequency'],\n '401B': ['DS', '1', 'MeasuredCenterFrequency'],\n '401C': ['DS', '1', 'MeasuredBandwidth'],\n '401D': ['DS', '1', 'ElementPitchB'],\n '4020': ['SQ', '1', 'PulserSettingsSequence'],\n '4022': ['DS', '1', 'PulseWidth'],\n '4024': ['DS', '1', 'ExcitationFrequency'],\n '4026': ['CS', '1', 'ModulationType'],\n '4028': ['DS', '1', 'Damping'],\n '4030': ['SQ', '1', 'ReceiverSettingsSequence'],\n '4031': ['DS', '1', 'AcquiredSoundpathLength'],\n '4032': ['CS', '1', 'AcquisitionCompressionType'],\n '4033': ['IS', '1', 'AcquisitionSampleSize'],\n '4034': ['DS', '1', 'RectifierSmoothing'],\n '4035': ['SQ', '1', 'DACSequence'],\n '4036': ['CS', '1', 'DACType'],\n '4038': ['DS', '1-n', 'DACGainPoints'],\n '403A': ['DS', '1-n', 'DACTimePoints'],\n '403C': ['DS', '1-n', 'DACAmplitude'],\n '4040': ['SQ', '1', 'PreAmplifierSettingsSequence'],\n '4050': ['SQ', '1', 'TransmitTransducerSettingsSequence'],\n '4051': ['SQ', '1', 'ReceiveTransducerSettingsSequence'],\n '4052': ['DS', '1', 'IncidentAngle'],\n '4054': ['ST', '1', 'CouplingTechnique'],\n '4056': ['ST', '1', 'CouplingMedium'],\n '4057': ['DS', '1', 'CouplingVelocity'],\n '4058': ['DS', '1', 'ProbeCenterLocationX'],\n '4059': ['DS', '1', 'ProbeCenterLocationZ'],\n '405A': ['DS', '1', 'SoundPathLength'],\n '405C': ['ST', '1', 'DelayLawIdentifier'],\n '4060': ['SQ', '1', 'GateSettingsSequence'],\n '4062': ['DS', '1', 'GateThreshold'],\n '4064': ['DS', '1', 'VelocityOfSound'],\n '4070': ['SQ', '1', 'CalibrationSettingsSequence'],\n '4072': ['ST', '1', 'CalibrationProcedure'],\n '4074': ['SH', '1', 'ProcedureVersion'],\n '4076': ['DA', '1', 'ProcedureCreationDate'],\n '4078': ['DA', '1', 'ProcedureExpirationDate'],\n '407A': ['DA', '1', 'ProcedureLastModifiedDate'],\n '407C': ['TM', '1-n', 'CalibrationTime'],\n '407E': ['DA', '1-n', 'CalibrationDate'],\n '4080': ['SQ', '1', 'ProbeDriveEquipmentSequence'],\n '4081': ['CS', '1', 'DriveType'],\n '4082': ['LT', '1', 'ProbeDriveNotes'],\n '4083': ['SQ', '1', 'DriveProbeSequence'],\n '4084': ['DS', '1', 'ProbeInductance'],\n '4085': ['DS', '1', 'ProbeResistance'],\n '4086': ['SQ', '1', 'ReceiveProbeSequence'],\n '4087': ['SQ', '1', 'ProbeDriveSettingsSequence'],\n '4088': ['DS', '1', 'BridgeResistors'],\n '4089': ['DS', '1', 'ProbeOrientationAngle'],\n '408B': ['DS', '1', 'UserSelectedGainY'],\n '408C': ['DS', '1', 'UserSelectedPhase'],\n '408D': ['DS', '1', 'UserSelectedOffsetX'],\n '408E': ['DS', '1', 'UserSelectedOffsetY'],\n '4091': ['SQ', '1', 'ChannelSettingsSequence'],\n '4092': ['DS', '1', 'ChannelThreshold'],\n '409A': ['SQ', '1', 'ScannerSettingsSequence'],\n '409B': ['ST', '1', 'ScanProcedure'],\n '409C': ['DS', '1', 'TranslationRateX'],\n '409D': ['DS', '1', 'TranslationRateY'],\n '409F': ['DS', '1', 'ChannelOverlap'],\n '40A0': ['LO', '1-n', 'ImageQualityIndicatorType'],\n '40A1': ['LO', '1-n', 'ImageQualityIndicatorMaterial'],\n '40A2': ['LO', '1-n', 'ImageQualityIndicatorSize'],\n '5002': ['IS', '1', 'LINACEnergy'],\n '5004': ['IS', '1', 'LINACOutput'],\n '5100': ['US', '1', 'ActiveAperture'],\n '5101': ['DS', '1', 'TotalAperture'],\n '5102': ['DS', '1', 'ApertureElevation'],\n '5103': ['DS', '1', 'MainLobeAngle'],\n '5104': ['DS', '1', 'MainRoofAngle'],\n '5105': ['CS', '1', 'ConnectorType'],\n '5106': ['SH', '1', 'WedgeModelNumber'],\n '5107': ['DS', '1', 'WedgeAngleFloat'],\n '5108': ['DS', '1', 'WedgeRoofAngle'],\n '5109': ['CS', '1', 'WedgeElement1Position'],\n '510A': ['DS', '1', 'WedgeMaterialVelocity'],\n '510B': ['SH', '1', 'WedgeMaterial'],\n '510C': ['DS', '1', 'WedgeOffsetZ'],\n '510D': ['DS', '1', 'WedgeOriginOffsetX'],\n '510E': ['DS', '1', 'WedgeTimeDelay'],\n '510F': ['SH', '1', 'WedgeName'],\n '5110': ['SH', '1', 'WedgeManufacturerName'],\n '5111': ['LO', '1', 'WedgeDescription'],\n '5112': ['DS', '1', 'NominalBeamAngle'],\n '5113': ['DS', '1', 'WedgeOffsetX'],\n '5114': ['DS', '1', 'WedgeOffsetY'],\n '5115': ['DS', '1', 'WedgeTotalLength'],\n '5116': ['DS', '1', 'WedgeInContactLength'],\n '5117': ['DS', '1', 'WedgeFrontGap'],\n '5118': ['DS', '1', 'WedgeTotalHeight'],\n '5119': ['DS', '1', 'WedgeFrontHeight'],\n '511A': ['DS', '1', 'WedgeRearHeight'],\n '511B': ['DS', '1', 'WedgeTotalWidth'],\n '511C': ['DS', '1', 'WedgeInContactWidth'],\n '511D': ['DS', '1', 'WedgeChamferHeight'],\n '511E': ['CS', '1', 'WedgeCurve'],\n '511F': ['DS', '1', 'RadiusAlongWedge']\n },\n '0016': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['DS', '1', 'WhitePoint'],\n '0002': ['DS', '3', 'PrimaryChromaticities'],\n '0003': ['UT', '1', 'BatteryLevel'],\n '0004': ['DS', '1', 'ExposureTimeInSeconds'],\n '0005': ['DS', '1', 'FNumber'],\n '0006': ['IS', '1', 'OECFRows'],\n '0007': ['IS', '1', 'OECFColumns'],\n '0008': ['UC', '1-n', 'OECFColumnNames'],\n '0009': ['DS', '1-n', 'OECFValues'],\n '000A': ['IS', '1', 'SpatialFrequencyResponseRows'],\n '000B': ['IS', '1', 'SpatialFrequencyResponseColumns'],\n '000C': ['UC', '1-n', 'SpatialFrequencyResponseColumnNames'],\n '000D': ['DS', '1-n', 'SpatialFrequencyResponseValues'],\n '000E': ['IS', '1', 'ColorFilterArrayPatternRows'],\n '000F': ['IS', '1', 'ColorFilterArrayPatternColumns'],\n '0010': ['DS', '1-n', 'ColorFilterArrayPatternValues'],\n '0011': ['US', '1', 'FlashFiringStatus'],\n '0012': ['US', '1', 'FlashReturnStatus'],\n '0013': ['US', '1', 'FlashMode'],\n '0014': ['US', '1', 'FlashFunctionPresent'],\n '0015': ['US', '1', 'FlashRedEyeMode'],\n '0016': ['US', '1', 'ExposureProgram'],\n '0017': ['UT', '1', 'SpectralSensitivity'],\n '0018': ['IS', '1', 'PhotographicSensitivity'],\n '0019': ['IS', '1', 'SelfTimerMode'],\n '001A': ['US', '1', 'SensitivityType'],\n '001B': ['IS', '1', 'StandardOutputSensitivity'],\n '001C': ['IS', '1', 'RecommendedExposureIndex'],\n '001D': ['IS', '1', 'ISOSpeed'],\n '001E': ['IS', '1', 'ISOSpeedLatitudeyyy'],\n '001F': ['IS', '1', 'ISOSpeedLatitudezzz'],\n '0020': ['UT', '1', 'EXIFVersion'],\n '0021': ['DS', '1', 'ShutterSpeedValue'],\n '0022': ['DS', '1', 'ApertureValue'],\n '0023': ['DS', '1', 'BrightnessValue'],\n '0024': ['DS', '1', 'ExposureBiasValue'],\n '0025': ['DS', '1', 'MaxApertureValue'],\n '0026': ['DS', '1', 'SubjectDistance'],\n '0027': ['US', '1', 'MeteringMode'],\n '0028': ['US', '1', 'LightSource'],\n '0029': ['DS', '1', 'FocalLength'],\n '002A': ['IS', '2-4', 'SubjectArea'],\n '002B': ['OB', '1', 'MakerNote'],\n '0030': ['DS', '1', 'Temperature'],\n '0031': ['DS', '1', 'Humidity'],\n '0032': ['DS', '1', 'Pressure'],\n '0033': ['DS', '1', 'WaterDepth'],\n '0034': ['DS', '1', 'Acceleration'],\n '0035': ['DS', '1', 'CameraElevationAngle'],\n '0036': ['DS', '1-2', 'FlashEnergy'],\n '0037': ['IS', '2', 'SubjectLocation'],\n '0038': ['DS', '1', 'PhotographicExposureIndex'],\n '0039': ['US', '1', 'SensingMethod'],\n '003A': ['US', '1', 'FileSource'],\n '003B': ['US', '1', 'SceneType'],\n '0041': ['US', '1', 'CustomRendered'],\n '0042': ['US', '1', 'ExposureMode'],\n '0043': ['US', '1', 'WhiteBalance'],\n '0044': ['DS', '1', 'DigitalZoomRatio'],\n '0045': ['IS', '1', 'FocalLengthIn35mmFilm'],\n '0046': ['US', '1', 'SceneCaptureType'],\n '0047': ['US', '1', 'GainControl'],\n '0048': ['US', '1', 'Contrast'],\n '0049': ['US', '1', 'Saturation'],\n '004A': ['US', '1', 'Sharpness'],\n '004B': ['OB', '1', 'DeviceSettingDescription'],\n '004C': ['US', '1', 'SubjectDistanceRange'],\n '004D': ['UT', '1', 'CameraOwnerName'],\n '004E': ['DS', '4', 'LensSpecification'],\n '004F': ['UT', '1', 'LensMake'],\n '0050': ['UT', '1', 'LensModel'],\n '0051': ['UT', '1', 'LensSerialNumber'],\n '0061': ['CS', '1', 'InteroperabilityIndex'],\n '0062': ['OB', '1', 'InteroperabilityVersion'],\n '0070': ['OB', '1', 'GPSVersionID'],\n '0071': ['CS', '1', 'GPSLatitudeRef'],\n '0072': ['DS', '3', 'GPSLatitude'],\n '0073': ['CS', '1', 'GPSLongitudeRef'],\n '0074': ['DS', '3', 'GPSLongitude'],\n '0075': ['US', '1', 'GPSAltitudeRef'],\n '0076': ['DS', '1', 'GPSAltitude'],\n '0077': ['DT', '1', 'GPSTimeStamp'],\n '0078': ['UT', '1', 'GPSSatellites'],\n '0079': ['CS', '1', 'GPSStatus'],\n '007A': ['CS', '1', 'GPSMeasureMode'],\n '007B': ['DS', '1', 'GPSDOP'],\n '007C': ['CS', '1', 'GPSSpeedRef'],\n '007D': ['DS', '1', 'GPSSpeed'],\n '007E': ['CS', '1', 'GPSTrackRef'],\n '007F': ['DS', '1', 'GPSTrack'],\n '0080': ['CS', '1', 'GPSImgDirectionRef'],\n '0081': ['DS', '1', 'GPSImgDirection'],\n '0082': ['UT', '1', 'GPSMapDatum'],\n '0083': ['CS', '1', 'GPSDestLatitudeRef'],\n '0084': ['DS', '3', 'GPSDestLatitude'],\n '0085': ['CS', '1', 'GPSDestLongitudeRef'],\n '0086': ['DS', '3', 'GPSDestLongitude'],\n '0087': ['CS', '1', 'GPSDestBearingRef'],\n '0088': ['DS', '1', 'GPSDestBearing'],\n '0089': ['CS', '1', 'GPSDestDistanceRef'],\n '008A': ['DS', '1', 'GPSDestDistance'],\n '008B': ['OB', '1', 'GPSProcessingMethod'],\n '008C': ['OB', '1', 'GPSAreaInformation'],\n '008D': ['DT', '1', 'GPSDateStamp'],\n '008E': ['IS', '1', 'GPSDifferential'],\n '1001': ['CS', '1', 'LightSourcePolarization'],\n '1002': ['DS', '1', 'EmitterColorTemperature'],\n '1003': ['CS', '1', 'ContactMethod'],\n '1004': ['CS', '1-n', 'ImmersionMedia'],\n '1005': ['DS', '1', 'OpticalMagnificationFactor']\n },\n '0018': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['LO', '1', 'ContrastBolusAgent'],\n '0012': ['SQ', '1', 'ContrastBolusAgentSequence'],\n '0013': ['FL', '1', 'ContrastBolusT1Relaxivity'],\n '0014': ['SQ', '1', 'ContrastBolusAdministrationRouteSequence'],\n '0015': ['CS', '1', 'BodyPartExamined'],\n '0020': ['CS', '1-n', 'ScanningSequence'],\n '0021': ['CS', '1-n', 'SequenceVariant'],\n '0022': ['CS', '1-n', 'ScanOptions'],\n '0023': ['CS', '1', 'MRAcquisitionType'],\n '0024': ['SH', '1', 'SequenceName'],\n '0025': ['CS', '1', 'AngioFlag'],\n '0026': ['SQ', '1', 'InterventionDrugInformationSequence'],\n '0027': ['TM', '1', 'InterventionDrugStopTime'],\n '0028': ['DS', '1', 'InterventionDrugDose'],\n '0029': ['SQ', '1', 'InterventionDrugCodeSequence'],\n '002A': ['SQ', '1', 'AdditionalDrugSequence'],\n '0030': ['LO', '1-n', 'Radionuclide'],\n '0031': ['LO', '1', 'Radiopharmaceutical'],\n '0032': ['DS', '1', 'EnergyWindowCenterline'],\n '0033': ['DS', '1-n', 'EnergyWindowTotalWidth'],\n '0034': ['LO', '1', 'InterventionDrugName'],\n '0035': ['TM', '1', 'InterventionDrugStartTime'],\n '0036': ['SQ', '1', 'InterventionSequence'],\n '0037': ['CS', '1', 'TherapyType'],\n '0038': ['CS', '1', 'InterventionStatus'],\n '0039': ['CS', '1', 'TherapyDescription'],\n '003A': ['ST', '1', 'InterventionDescription'],\n '0040': ['IS', '1', 'CineRate'],\n '0042': ['CS', '1', 'InitialCineRunState'],\n '0050': ['DS', '1', 'SliceThickness'],\n '0060': ['DS', '1', 'KVP'],\n '0061': ['DS', '1', ''],\n '0070': ['IS', '1', 'CountsAccumulated'],\n '0071': ['CS', '1', 'AcquisitionTerminationCondition'],\n '0072': ['DS', '1', 'EffectiveDuration'],\n '0073': ['CS', '1', 'AcquisitionStartCondition'],\n '0074': ['IS', '1', 'AcquisitionStartConditionData'],\n '0075': ['IS', '1', 'AcquisitionTerminationConditionData'],\n '0080': ['DS', '1', 'RepetitionTime'],\n '0081': ['DS', '1', 'EchoTime'],\n '0082': ['DS', '1', 'InversionTime'],\n '0083': ['DS', '1', 'NumberOfAverages'],\n '0084': ['DS', '1', 'ImagingFrequency'],\n '0085': ['SH', '1', 'ImagedNucleus'],\n '0086': ['IS', '1-n', 'EchoNumbers'],\n '0087': ['DS', '1', 'MagneticFieldStrength'],\n '0088': ['DS', '1', 'SpacingBetweenSlices'],\n '0089': ['IS', '1', 'NumberOfPhaseEncodingSteps'],\n '0090': ['DS', '1', 'DataCollectionDiameter'],\n '0091': ['IS', '1', 'EchoTrainLength'],\n '0093': ['DS', '1', 'PercentSampling'],\n '0094': ['DS', '1', 'PercentPhaseFieldOfView'],\n '0095': ['DS', '1', 'PixelBandwidth'],\n '1000': ['LO', '1', 'DeviceSerialNumber'],\n '1002': ['UI', '1', 'DeviceUID'],\n '1003': ['LO', '1', 'DeviceID'],\n '1004': ['LO', '1', 'PlateID'],\n '1005': ['LO', '1', 'GeneratorID'],\n '1006': ['LO', '1', 'GridID'],\n '1007': ['LO', '1', 'CassetteID'],\n '1008': ['LO', '1', 'GantryID'],\n '1009': ['UT', '1', 'UniqueDeviceIdentifier'],\n '100A': ['SQ', '1', 'UDISequence'],\n '100B': ['UI', '1-n', 'ManufacturerDeviceClassUID'],\n '1010': ['LO', '1', 'SecondaryCaptureDeviceID'],\n '1011': ['LO', '1', 'HardcopyCreationDeviceID'],\n '1012': ['DA', '1', 'DateOfSecondaryCapture'],\n '1014': ['TM', '1', 'TimeOfSecondaryCapture'],\n '1016': ['LO', '1', 'SecondaryCaptureDeviceManufacturer'],\n '1017': ['LO', '1', 'HardcopyDeviceManufacturer'],\n '1018': ['LO', '1', 'SecondaryCaptureDeviceManufacturerModelName'],\n '1019': ['LO', '1-n', 'SecondaryCaptureDeviceSoftwareVersions'],\n '101A': ['LO', '1-n', 'HardcopyDeviceSoftwareVersion'],\n '101B': ['LO', '1', 'HardcopyDeviceManufacturerModelName'],\n '1020': ['LO', '1-n', 'SoftwareVersions'],\n '1022': ['SH', '1', 'VideoImageFormatAcquired'],\n '1023': ['LO', '1', 'DigitalImageFormatAcquired'],\n '1030': ['LO', '1', 'ProtocolName'],\n '1040': ['LO', '1', 'ContrastBolusRoute'],\n '1041': ['DS', '1', 'ContrastBolusVolume'],\n '1042': ['TM', '1', 'ContrastBolusStartTime'],\n '1043': ['TM', '1', 'ContrastBolusStopTime'],\n '1044': ['DS', '1', 'ContrastBolusTotalDose'],\n '1045': ['IS', '1', 'SyringeCounts'],\n '1046': ['DS', '1-n', 'ContrastFlowRate'],\n '1047': ['DS', '1-n', 'ContrastFlowDuration'],\n '1048': ['CS', '1', 'ContrastBolusIngredient'],\n '1049': ['DS', '1', 'ContrastBolusIngredientConcentration'],\n '1050': ['DS', '1', 'SpatialResolution'],\n '1060': ['DS', '1', 'TriggerTime'],\n '1061': ['LO', '1', 'TriggerSourceOrType'],\n '1062': ['IS', '1', 'NominalInterval'],\n '1063': ['DS', '1', 'FrameTime'],\n '1064': ['LO', '1', 'CardiacFramingType'],\n '1065': ['DS', '1-n', 'FrameTimeVector'],\n '1066': ['DS', '1', 'FrameDelay'],\n '1067': ['DS', '1', 'ImageTriggerDelay'],\n '1068': ['DS', '1', 'MultiplexGroupTimeOffset'],\n '1069': ['DS', '1', 'TriggerTimeOffset'],\n '106A': ['CS', '1', 'SynchronizationTrigger'],\n '106C': ['US', '2', 'SynchronizationChannel'],\n '106E': ['UL', '1', 'TriggerSamplePosition'],\n '1070': ['LO', '1', 'RadiopharmaceuticalRoute'],\n '1071': ['DS', '1', 'RadiopharmaceuticalVolume'],\n '1072': ['TM', '1', 'RadiopharmaceuticalStartTime'],\n '1073': ['TM', '1', 'RadiopharmaceuticalStopTime'],\n '1074': ['DS', '1', 'RadionuclideTotalDose'],\n '1075': ['DS', '1', 'RadionuclideHalfLife'],\n '1076': ['DS', '1', 'RadionuclidePositronFraction'],\n '1077': ['DS', '1', 'RadiopharmaceuticalSpecificActivity'],\n '1078': ['DT', '1', 'RadiopharmaceuticalStartDateTime'],\n '1079': ['DT', '1', 'RadiopharmaceuticalStopDateTime'],\n '1080': ['CS', '1', 'BeatRejectionFlag'],\n '1081': ['IS', '1', 'LowRRValue'],\n '1082': ['IS', '1', 'HighRRValue'],\n '1083': ['IS', '1', 'IntervalsAcquired'],\n '1084': ['IS', '1', 'IntervalsRejected'],\n '1085': ['LO', '1', 'PVCRejection'],\n '1086': ['IS', '1', 'SkipBeats'],\n '1088': ['IS', '1', 'HeartRate'],\n '1090': ['IS', '1', 'CardiacNumberOfImages'],\n '1094': ['IS', '1', 'TriggerWindow'],\n '1100': ['DS', '1', 'ReconstructionDiameter'],\n '1110': ['DS', '1', 'DistanceSourceToDetector'],\n '1111': ['DS', '1', 'DistanceSourceToPatient'],\n '1114': ['DS', '1', 'EstimatedRadiographicMagnificationFactor'],\n '1120': ['DS', '1', 'GantryDetectorTilt'],\n '1121': ['DS', '1', 'GantryDetectorSlew'],\n '1130': ['DS', '1', 'TableHeight'],\n '1131': ['DS', '1', 'TableTraverse'],\n '1134': ['CS', '1', 'TableMotion'],\n '1135': ['DS', '1-n', 'TableVerticalIncrement'],\n '1136': ['DS', '1-n', 'TableLateralIncrement'],\n '1137': ['DS', '1-n', 'TableLongitudinalIncrement'],\n '1138': ['DS', '1', 'TableAngle'],\n '113A': ['CS', '1', 'TableType'],\n '1140': ['CS', '1', 'RotationDirection'],\n '1141': ['DS', '1', 'AngularPosition'],\n '1142': ['DS', '1-n', 'RadialPosition'],\n '1143': ['DS', '1', 'ScanArc'],\n '1144': ['DS', '1', 'AngularStep'],\n '1145': ['DS', '1', 'CenterOfRotationOffset'],\n '1146': ['DS', '1-n', 'RotationOffset'],\n '1147': ['CS', '1', 'FieldOfViewShape'],\n '1149': ['IS', '1-2', 'FieldOfViewDimensions'],\n '1150': ['IS', '1', 'ExposureTime'],\n '1151': ['IS', '1', 'XRayTubeCurrent'],\n '1152': ['IS', '1', 'Exposure'],\n '1153': ['IS', '1', 'ExposureInuAs'],\n '1154': ['DS', '1', 'AveragePulseWidth'],\n '1155': ['CS', '1', 'RadiationSetting'],\n '1156': ['CS', '1', 'RectificationType'],\n '115A': ['CS', '1', 'RadiationMode'],\n '115E': ['DS', '1', 'ImageAndFluoroscopyAreaDoseProduct'],\n '1160': ['SH', '1', 'FilterType'],\n '1161': ['LO', '1-n', 'TypeOfFilters'],\n '1162': ['DS', '1', 'IntensifierSize'],\n '1164': ['DS', '2', 'ImagerPixelSpacing'],\n '1166': ['CS', '1-n', 'Grid'],\n '1170': ['IS', '1', 'GeneratorPower'],\n '1180': ['SH', '1', 'CollimatorGridName'],\n '1181': ['CS', '1', 'CollimatorType'],\n '1182': ['IS', '1-2', 'FocalDistance'],\n '1183': ['DS', '1-2', 'XFocusCenter'],\n '1184': ['DS', '1-2', 'YFocusCenter'],\n '1190': ['DS', '1-n', 'FocalSpots'],\n '1191': ['CS', '1', 'AnodeTargetMaterial'],\n '11A0': ['DS', '1', 'BodyPartThickness'],\n '11A2': ['DS', '1', 'CompressionForce'],\n '11A3': ['DS', '1', 'CompressionPressure'],\n '11A4': ['LO', '1', 'PaddleDescription'],\n '11A5': ['DS', '1', 'CompressionContactArea'],\n '11B0': ['LO', '1', 'AcquisitionMode'],\n '11B1': ['LO', '1', 'DoseModeName'],\n '11B2': ['CS', '1', 'AcquiredSubtractionMaskFlag'],\n '11B3': ['CS', '1', 'FluoroscopyPersistenceFlag'],\n '11B4': ['CS', '1', 'FluoroscopyLastImageHoldPersistenceFlag'],\n '11B5': ['IS', '1', 'UpperLimitNumberOfPersistentFluoroscopyFrames'],\n '11B6': ['CS', '1', 'ContrastBolusAutoInjectionTriggerFlag'],\n '11B7': ['FD', '1', 'ContrastBolusInjectionDelay'],\n '11B8': ['SQ', '1', 'XAAcquisitionPhaseDetailsSequence'],\n '11B9': ['FD', '1', 'XAAcquisitionFrameRate'],\n '11BA': ['SQ', '1', 'XAPlaneDetailsSequence'],\n '11BB': ['LO', '1', 'AcquisitionFieldOfViewLabel'],\n '11BC': ['SQ', '1', 'XRayFilterDetailsSequence'],\n '11BD': ['FD', '1', 'XAAcquisitionDuration'],\n '11BE': ['CS', '1', 'ReconstructionPipelineType'],\n '11BF': ['SQ', '1', 'ImageFilterDetailsSequence'],\n '11C0': ['CS', '1', 'AppliedMaskSubtractionFlag'],\n '11C1': ['SQ', '1', 'RequestedSeriesDescriptionCodeSequence'],\n '1200': ['DA', '1-n', 'DateOfLastCalibration'],\n '1201': ['TM', '1-n', 'TimeOfLastCalibration'],\n '1202': ['DT', '1', 'DateTimeOfLastCalibration'],\n '1203': ['DT', '1', 'CalibrationDateTime'],\n '1210': ['SH', '1-n', 'ConvolutionKernel'],\n '1240': ['IS', '1-n', 'UpperLowerPixelValues'],\n '1242': ['IS', '1', 'ActualFrameDuration'],\n '1243': ['IS', '1', 'CountRate'],\n '1244': ['US', '1', 'PreferredPlaybackSequencing'],\n '1250': ['SH', '1', 'ReceiveCoilName'],\n '1251': ['SH', '1', 'TransmitCoilName'],\n '1260': ['SH', '1', 'PlateType'],\n '1261': ['LO', '1', 'PhosphorType'],\n '1271': ['FD', '1', 'WaterEquivalentDiameter'],\n '1272': ['SQ', '1', 'WaterEquivalentDiameterCalculationMethodCodeSequence'],\n '1300': ['DS', '1', 'ScanVelocity'],\n '1301': ['CS', '1-n', 'WholeBodyTechnique'],\n '1302': ['IS', '1', 'ScanLength'],\n '1310': ['US', '4', 'AcquisitionMatrix'],\n '1312': ['CS', '1', 'InPlanePhaseEncodingDirection'],\n '1314': ['DS', '1', 'FlipAngle'],\n '1315': ['CS', '1', 'VariableFlipAngleFlag'],\n '1316': ['DS', '1', 'SAR'],\n '1318': ['DS', '1', 'dBdt'],\n '1320': ['FL', '1', 'B1rms'],\n '1400': ['LO', '1', 'AcquisitionDeviceProcessingDescription'],\n '1401': ['LO', '1', 'AcquisitionDeviceProcessingCode'],\n '1402': ['CS', '1', 'CassetteOrientation'],\n '1403': ['CS', '1', 'CassetteSize'],\n '1404': ['US', '1', 'ExposuresOnPlate'],\n '1405': ['IS', '1', 'RelativeXRayExposure'],\n '1411': ['DS', '1', 'ExposureIndex'],\n '1412': ['DS', '1', 'TargetExposureIndex'],\n '1413': ['DS', '1', 'DeviationIndex'],\n '1450': ['DS', '1', 'ColumnAngulation'],\n '1460': ['DS', '1', 'TomoLayerHeight'],\n '1470': ['DS', '1', 'TomoAngle'],\n '1480': ['DS', '1', 'TomoTime'],\n '1490': ['CS', '1', 'TomoType'],\n '1491': ['CS', '1', 'TomoClass'],\n '1495': ['IS', '1', 'NumberOfTomosynthesisSourceImages'],\n '1500': ['CS', '1', 'PositionerMotion'],\n '1508': ['CS', '1', 'PositionerType'],\n '1510': ['DS', '1', 'PositionerPrimaryAngle'],\n '1511': ['DS', '1', 'PositionerSecondaryAngle'],\n '1520': ['DS', '1-n', 'PositionerPrimaryAngleIncrement'],\n '1521': ['DS', '1-n', 'PositionerSecondaryAngleIncrement'],\n '1530': ['DS', '1', 'DetectorPrimaryAngle'],\n '1531': ['DS', '1', 'DetectorSecondaryAngle'],\n '1600': ['CS', '1-3', 'ShutterShape'],\n '1602': ['IS', '1', 'ShutterLeftVerticalEdge'],\n '1604': ['IS', '1', 'ShutterRightVerticalEdge'],\n '1606': ['IS', '1', 'ShutterUpperHorizontalEdge'],\n '1608': ['IS', '1', 'ShutterLowerHorizontalEdge'],\n '1610': ['IS', '2', 'CenterOfCircularShutter'],\n '1612': ['IS', '1', 'RadiusOfCircularShutter'],\n '1620': ['IS', '2-2n', 'VerticesOfThePolygonalShutter'],\n '1622': ['US', '1', 'ShutterPresentationValue'],\n '1623': ['US', '1', 'ShutterOverlayGroup'],\n '1624': ['US', '3', 'ShutterPresentationColorCIELabValue'],\n '1630': ['CS', '1', 'OutlineShapeType'],\n '1631': ['FD', '1', 'OutlineLeftVerticalEdge'],\n '1632': ['FD', '1', 'OutlineRightVerticalEdge'],\n '1633': ['FD', '1', 'OutlineUpperHorizontalEdge'],\n '1634': ['FD', '1', 'OutlineLowerHorizontalEdge'],\n '1635': ['FD', '2', 'CenterOfCircularOutline'],\n '1636': ['FD', '1', 'DiameterOfCircularOutline'],\n '1637': ['UL', '1', 'NumberOfPolygonalVertices'],\n '1638': ['OF', '1', 'VerticesOfThePolygonalOutline'],\n '1700': ['CS', '1-3', 'CollimatorShape'],\n '1702': ['IS', '1', 'CollimatorLeftVerticalEdge'],\n '1704': ['IS', '1', 'CollimatorRightVerticalEdge'],\n '1706': ['IS', '1', 'CollimatorUpperHorizontalEdge'],\n '1708': ['IS', '1', 'CollimatorLowerHorizontalEdge'],\n '1710': ['IS', '2', 'CenterOfCircularCollimator'],\n '1712': ['IS', '1', 'RadiusOfCircularCollimator'],\n '1720': ['IS', '2-2n', 'VerticesOfThePolygonalCollimator'],\n '1800': ['CS', '1', 'AcquisitionTimeSynchronized'],\n '1801': ['SH', '1', 'TimeSource'],\n '1802': ['CS', '1', 'TimeDistributionProtocol'],\n '1803': ['LO', '1', 'NTPSourceAddress'],\n '2001': ['IS', '1-n', 'PageNumberVector'],\n '2002': ['SH', '1-n', 'FrameLabelVector'],\n '2003': ['DS', '1-n', 'FramePrimaryAngleVector'],\n '2004': ['DS', '1-n', 'FrameSecondaryAngleVector'],\n '2005': ['DS', '1-n', 'SliceLocationVector'],\n '2006': ['SH', '1-n', 'DisplayWindowLabelVector'],\n '2010': ['DS', '2', 'NominalScannedPixelSpacing'],\n '2020': ['CS', '1', 'DigitizingDeviceTransportDirection'],\n '2030': ['DS', '1', 'RotationOfScannedFilm'],\n '2041': ['SQ', '1', 'BiopsyTargetSequence'],\n '2042': ['UI', '1', 'TargetUID'],\n '2043': ['FL', '2', 'LocalizingCursorPosition'],\n '2044': ['FL', '3', 'CalculatedTargetPosition'],\n '2045': ['SH', '1', 'TargetLabel'],\n '2046': ['FL', '1', 'DisplayedZValue'],\n '3100': ['CS', '1', 'IVUSAcquisition'],\n '3101': ['DS', '1', 'IVUSPullbackRate'],\n '3102': ['DS', '1', 'IVUSGatedRate'],\n '3103': ['IS', '1', 'IVUSPullbackStartFrameNumber'],\n '3104': ['IS', '1', 'IVUSPullbackStopFrameNumber'],\n '3105': ['IS', '1-n', 'LesionNumber'],\n '4000': ['LT', '1', 'AcquisitionComments'],\n '5000': ['SH', '1-n', 'OutputPower'],\n '5010': ['LO', '1-n', 'TransducerData'],\n '5011': ['SQ', '1', 'TransducerIdentificationSequence'],\n '5012': ['DS', '1', 'FocusDepth'],\n '5020': ['LO', '1', 'ProcessingFunction'],\n '5021': ['LO', '1', 'PostprocessingFunction'],\n '5022': ['DS', '1', 'MechanicalIndex'],\n '5024': ['DS', '1', 'BoneThermalIndex'],\n '5026': ['DS', '1', 'CranialThermalIndex'],\n '5027': ['DS', '1', 'SoftTissueThermalIndex'],\n '5028': ['DS', '1', 'SoftTissueFocusThermalIndex'],\n '5029': ['DS', '1', 'SoftTissueSurfaceThermalIndex'],\n '5030': ['DS', '1', 'DynamicRange'],\n '5040': ['DS', '1', 'TotalGain'],\n '5050': ['IS', '1', 'DepthOfScanField'],\n '5100': ['CS', '1', 'PatientPosition'],\n '5101': ['CS', '1', 'ViewPosition'],\n '5104': ['SQ', '1', 'ProjectionEponymousNameCodeSequence'],\n '5210': ['DS', '6', 'ImageTransformationMatrix'],\n '5212': ['DS', '3', 'ImageTranslationVector'],\n '6000': ['DS', '1', 'Sensitivity'],\n '6011': ['SQ', '1', 'SequenceOfUltrasoundRegions'],\n '6012': ['US', '1', 'RegionSpatialFormat'],\n '6014': ['US', '1', 'RegionDataType'],\n '6016': ['UL', '1', 'RegionFlags'],\n '6018': ['UL', '1', 'RegionLocationMinX0'],\n '601A': ['UL', '1', 'RegionLocationMinY0'],\n '601C': ['UL', '1', 'RegionLocationMaxX1'],\n '601E': ['UL', '1', 'RegionLocationMaxY1'],\n '6020': ['SL', '1', 'ReferencePixelX0'],\n '6022': ['SL', '1', 'ReferencePixelY0'],\n '6024': ['US', '1', 'PhysicalUnitsXDirection'],\n '6026': ['US', '1', 'PhysicalUnitsYDirection'],\n '6028': ['FD', '1', 'ReferencePixelPhysicalValueX'],\n '602A': ['FD', '1', 'ReferencePixelPhysicalValueY'],\n '602C': ['FD', '1', 'PhysicalDeltaX'],\n '602E': ['FD', '1', 'PhysicalDeltaY'],\n '6030': ['UL', '1', 'TransducerFrequency'],\n '6031': ['CS', '1', 'TransducerType'],\n '6032': ['UL', '1', 'PulseRepetitionFrequency'],\n '6034': ['FD', '1', 'DopplerCorrectionAngle'],\n '6036': ['FD', '1', 'SteeringAngle'],\n '6038': ['UL', '1', 'DopplerSampleVolumeXPositionRetired'],\n '6039': ['SL', '1', 'DopplerSampleVolumeXPosition'],\n '603A': ['UL', '1', 'DopplerSampleVolumeYPositionRetired'],\n '603B': ['SL', '1', 'DopplerSampleVolumeYPosition'],\n '603C': ['UL', '1', 'TMLinePositionX0Retired'],\n '603D': ['SL', '1', 'TMLinePositionX0'],\n '603E': ['UL', '1', 'TMLinePositionY0Retired'],\n '603F': ['SL', '1', 'TMLinePositionY0'],\n '6040': ['UL', '1', 'TMLinePositionX1Retired'],\n '6041': ['SL', '1', 'TMLinePositionX1'],\n '6042': ['UL', '1', 'TMLinePositionY1Retired'],\n '6043': ['SL', '1', 'TMLinePositionY1'],\n '6044': ['US', '1', 'PixelComponentOrganization'],\n '6046': ['UL', '1', 'PixelComponentMask'],\n '6048': ['UL', '1', 'PixelComponentRangeStart'],\n '604A': ['UL', '1', 'PixelComponentRangeStop'],\n '604C': ['US', '1', 'PixelComponentPhysicalUnits'],\n '604E': ['US', '1', 'PixelComponentDataType'],\n '6050': ['UL', '1', 'NumberOfTableBreakPoints'],\n '6052': ['UL', '1-n', 'TableOfXBreakPoints'],\n '6054': ['FD', '1-n', 'TableOfYBreakPoints'],\n '6056': ['UL', '1', 'NumberOfTableEntries'],\n '6058': ['UL', '1-n', 'TableOfPixelValues'],\n '605A': ['FL', '1-n', 'TableOfParameterValues'],\n '6060': ['FL', '1-n', 'RWaveTimeVector'],\n '6070': ['US', '1', 'ActiveImageAreaOverlayGroup'],\n '7000': ['CS', '1', 'DetectorConditionsNominalFlag'],\n '7001': ['DS', '1', 'DetectorTemperature'],\n '7004': ['CS', '1', 'DetectorType'],\n '7005': ['CS', '1', 'DetectorConfiguration'],\n '7006': ['LT', '1', 'DetectorDescription'],\n '7008': ['LT', '1', 'DetectorMode'],\n '700A': ['SH', '1', 'DetectorID'],\n '700C': ['DA', '1', 'DateOfLastDetectorCalibration'],\n '700E': ['TM', '1', 'TimeOfLastDetectorCalibration'],\n '7010': ['IS', '1', 'ExposuresOnDetectorSinceLastCalibration'],\n '7011': ['IS', '1', 'ExposuresOnDetectorSinceManufactured'],\n '7012': ['DS', '1', 'DetectorTimeSinceLastExposure'],\n '7014': ['DS', '1', 'DetectorActiveTime'],\n '7016': ['DS', '1', 'DetectorActivationOffsetFromExposure'],\n '701A': ['DS', '2', 'DetectorBinning'],\n '7020': ['DS', '2', 'DetectorElementPhysicalSize'],\n '7022': ['DS', '2', 'DetectorElementSpacing'],\n '7024': ['CS', '1', 'DetectorActiveShape'],\n '7026': ['DS', '1-2', 'DetectorActiveDimensions'],\n '7028': ['DS', '2', 'DetectorActiveOrigin'],\n '702A': ['LO', '1', 'DetectorManufacturerName'],\n '702B': ['LO', '1', 'DetectorManufacturerModelName'],\n '7030': ['DS', '2', 'FieldOfViewOrigin'],\n '7032': ['DS', '1', 'FieldOfViewRotation'],\n '7034': ['CS', '1', 'FieldOfViewHorizontalFlip'],\n '7036': ['FL', '2', 'PixelDataAreaOriginRelativeToFOV'],\n '7038': ['FL', '1', 'PixelDataAreaRotationAngleRelativeToFOV'],\n '7040': ['LT', '1', 'GridAbsorbingMaterial'],\n '7041': ['LT', '1', 'GridSpacingMaterial'],\n '7042': ['DS', '1', 'GridThickness'],\n '7044': ['DS', '1', 'GridPitch'],\n '7046': ['IS', '2', 'GridAspectRatio'],\n '7048': ['DS', '1', 'GridPeriod'],\n '704C': ['DS', '1', 'GridFocalDistance'],\n '7050': ['CS', '1-n', 'FilterMaterial'],\n '7052': ['DS', '1-n', 'FilterThicknessMinimum'],\n '7054': ['DS', '1-n', 'FilterThicknessMaximum'],\n '7056': ['FL', '1-n', 'FilterBeamPathLengthMinimum'],\n '7058': ['FL', '1-n', 'FilterBeamPathLengthMaximum'],\n '7060': ['CS', '1', 'ExposureControlMode'],\n '7062': ['LT', '1', 'ExposureControlModeDescription'],\n '7064': ['CS', '1', 'ExposureStatus'],\n '7065': ['DS', '1', 'PhototimerSetting'],\n '8150': ['DS', '1', 'ExposureTimeInuS'],\n '8151': ['DS', '1', 'XRayTubeCurrentInuA'],\n '9004': ['CS', '1', 'ContentQualification'],\n '9005': ['SH', '1', 'PulseSequenceName'],\n '9006': ['SQ', '1', 'MRImagingModifierSequence'],\n '9008': ['CS', '1', 'EchoPulseSequence'],\n '9009': ['CS', '1', 'InversionRecovery'],\n '9010': ['CS', '1', 'FlowCompensation'],\n '9011': ['CS', '1', 'MultipleSpinEcho'],\n '9012': ['CS', '1', 'MultiPlanarExcitation'],\n '9014': ['CS', '1', 'PhaseContrast'],\n '9015': ['CS', '1', 'TimeOfFlightContrast'],\n '9016': ['CS', '1', 'Spoiling'],\n '9017': ['CS', '1', 'SteadyStatePulseSequence'],\n '9018': ['CS', '1', 'EchoPlanarPulseSequence'],\n '9019': ['FD', '1', 'TagAngleFirstAxis'],\n '9020': ['CS', '1', 'MagnetizationTransfer'],\n '9021': ['CS', '1', 'T2Preparation'],\n '9022': ['CS', '1', 'BloodSignalNulling'],\n '9024': ['CS', '1', 'SaturationRecovery'],\n '9025': ['CS', '1', 'SpectrallySelectedSuppression'],\n '9026': ['CS', '1', 'SpectrallySelectedExcitation'],\n '9027': ['CS', '1', 'SpatialPresaturation'],\n '9028': ['CS', '1', 'Tagging'],\n '9029': ['CS', '1', 'OversamplingPhase'],\n '9030': ['FD', '1', 'TagSpacingFirstDimension'],\n '9032': ['CS', '1', 'GeometryOfKSpaceTraversal'],\n '9033': ['CS', '1', 'SegmentedKSpaceTraversal'],\n '9034': ['CS', '1', 'RectilinearPhaseEncodeReordering'],\n '9035': ['FD', '1', 'TagThickness'],\n '9036': ['CS', '1', 'PartialFourierDirection'],\n '9037': ['CS', '1', 'CardiacSynchronizationTechnique'],\n '9041': ['LO', '1', 'ReceiveCoilManufacturerName'],\n '9042': ['SQ', '1', 'MRReceiveCoilSequence'],\n '9043': ['CS', '1', 'ReceiveCoilType'],\n '9044': ['CS', '1', 'QuadratureReceiveCoil'],\n '9045': ['SQ', '1', 'MultiCoilDefinitionSequence'],\n '9046': ['LO', '1', 'MultiCoilConfiguration'],\n '9047': ['SH', '1', 'MultiCoilElementName'],\n '9048': ['CS', '1', 'MultiCoilElementUsed'],\n '9049': ['SQ', '1', 'MRTransmitCoilSequence'],\n '9050': ['LO', '1', 'TransmitCoilManufacturerName'],\n '9051': ['CS', '1', 'TransmitCoilType'],\n '9052': ['FD', '1-2', 'SpectralWidth'],\n '9053': ['FD', '1-2', 'ChemicalShiftReference'],\n '9054': ['CS', '1', 'VolumeLocalizationTechnique'],\n '9058': ['US', '1', 'MRAcquisitionFrequencyEncodingSteps'],\n '9059': ['CS', '1', 'Decoupling'],\n '9060': ['CS', '1-2', 'DecoupledNucleus'],\n '9061': ['FD', '1-2', 'DecouplingFrequency'],\n '9062': ['CS', '1', 'DecouplingMethod'],\n '9063': ['FD', '1-2', 'DecouplingChemicalShiftReference'],\n '9064': ['CS', '1', 'KSpaceFiltering'],\n '9065': ['CS', '1-2', 'TimeDomainFiltering'],\n '9066': ['US', '1-2', 'NumberOfZeroFills'],\n '9067': ['CS', '1', 'BaselineCorrection'],\n '9069': ['FD', '1', 'ParallelReductionFactorInPlane'],\n '9070': ['FD', '1', 'CardiacRRIntervalSpecified'],\n '9073': ['FD', '1', 'AcquisitionDuration'],\n '9074': ['DT', '1', 'FrameAcquisitionDateTime'],\n '9075': ['CS', '1', 'DiffusionDirectionality'],\n '9076': ['SQ', '1', 'DiffusionGradientDirectionSequence'],\n '9077': ['CS', '1', 'ParallelAcquisition'],\n '9078': ['CS', '1', 'ParallelAcquisitionTechnique'],\n '9079': ['FD', '1-n', 'InversionTimes'],\n '9080': ['ST', '1', 'MetaboliteMapDescription'],\n '9081': ['CS', '1', 'PartialFourier'],\n '9082': ['FD', '1', 'EffectiveEchoTime'],\n '9083': ['SQ', '1', 'MetaboliteMapCodeSequence'],\n '9084': ['SQ', '1', 'ChemicalShiftSequence'],\n '9085': ['CS', '1', 'CardiacSignalSource'],\n '9087': ['FD', '1', 'DiffusionBValue'],\n '9089': ['FD', '3', 'DiffusionGradientOrientation'],\n '9090': ['FD', '3', 'VelocityEncodingDirection'],\n '9091': ['FD', '1', 'VelocityEncodingMinimumValue'],\n '9092': ['SQ', '1', 'VelocityEncodingAcquisitionSequence'],\n '9093': ['US', '1', 'NumberOfKSpaceTrajectories'],\n '9094': ['CS', '1', 'CoverageOfKSpace'],\n '9095': ['UL', '1', 'SpectroscopyAcquisitionPhaseRows'],\n '9096': ['FD', '1', 'ParallelReductionFactorInPlaneRetired'],\n '9098': ['FD', '1-2', 'TransmitterFrequency'],\n '9100': ['CS', '1-2', 'ResonantNucleus'],\n '9101': ['CS', '1', 'FrequencyCorrection'],\n '9103': ['SQ', '1', 'MRSpectroscopyFOVGeometrySequence'],\n '9104': ['FD', '1', 'SlabThickness'],\n '9105': ['FD', '3', 'SlabOrientation'],\n '9106': ['FD', '3', 'MidSlabPosition'],\n '9107': ['SQ', '1', 'MRSpatialSaturationSequence'],\n '9112': ['SQ', '1', 'MRTimingAndRelatedParametersSequence'],\n '9114': ['SQ', '1', 'MREchoSequence'],\n '9115': ['SQ', '1', 'MRModifierSequence'],\n '9117': ['SQ', '1', 'MRDiffusionSequence'],\n '9118': ['SQ', '1', 'CardiacSynchronizationSequence'],\n '9119': ['SQ', '1', 'MRAveragesSequence'],\n '9125': ['SQ', '1', 'MRFOVGeometrySequence'],\n '9126': ['SQ', '1', 'VolumeLocalizationSequence'],\n '9127': ['UL', '1', 'SpectroscopyAcquisitionDataColumns'],\n '9147': ['CS', '1', 'DiffusionAnisotropyType'],\n '9151': ['DT', '1', 'FrameReferenceDateTime'],\n '9152': ['SQ', '1', 'MRMetaboliteMapSequence'],\n '9155': ['FD', '1', 'ParallelReductionFactorOutOfPlane'],\n '9159': ['UL', '1', 'SpectroscopyAcquisitionOutOfPlanePhaseSteps'],\n '9166': ['CS', '1', 'BulkMotionStatus'],\n '9168': ['FD', '1', 'ParallelReductionFactorSecondInPlane'],\n '9169': ['CS', '1', 'CardiacBeatRejectionTechnique'],\n '9170': ['CS', '1', 'RespiratoryMotionCompensationTechnique'],\n '9171': ['CS', '1', 'RespiratorySignalSource'],\n '9172': ['CS', '1', 'BulkMotionCompensationTechnique'],\n '9173': ['CS', '1', 'BulkMotionSignalSource'],\n '9174': ['CS', '1', 'ApplicableSafetyStandardAgency'],\n '9175': ['LO', '1', 'ApplicableSafetyStandardDescription'],\n '9176': ['SQ', '1', 'OperatingModeSequence'],\n '9177': ['CS', '1', 'OperatingModeType'],\n '9178': ['CS', '1', 'OperatingMode'],\n '9179': ['CS', '1', 'SpecificAbsorptionRateDefinition'],\n '9180': ['CS', '1', 'GradientOutputType'],\n '9181': ['FD', '1', 'SpecificAbsorptionRateValue'],\n '9182': ['FD', '1', 'GradientOutput'],\n '9183': ['CS', '1', 'FlowCompensationDirection'],\n '9184': ['FD', '1', 'TaggingDelay'],\n '9185': ['ST', '1', 'RespiratoryMotionCompensationTechniqueDescription'],\n '9186': ['SH', '1', 'RespiratorySignalSourceID'],\n '9195': ['FD', '1', 'ChemicalShiftMinimumIntegrationLimitInHz'],\n '9196': ['FD', '1', 'ChemicalShiftMaximumIntegrationLimitInHz'],\n '9197': ['SQ', '1', 'MRVelocityEncodingSequence'],\n '9198': ['CS', '1', 'FirstOrderPhaseCorrection'],\n '9199': ['CS', '1', 'WaterReferencedPhaseCorrection'],\n '9200': ['CS', '1', 'MRSpectroscopyAcquisitionType'],\n '9214': ['CS', '1', 'RespiratoryCyclePosition'],\n '9217': ['FD', '1', 'VelocityEncodingMaximumValue'],\n '9218': ['FD', '1', 'TagSpacingSecondDimension'],\n '9219': ['SS', '1', 'TagAngleSecondAxis'],\n '9220': ['FD', '1', 'FrameAcquisitionDuration'],\n '9226': ['SQ', '1', 'MRImageFrameTypeSequence'],\n '9227': ['SQ', '1', 'MRSpectroscopyFrameTypeSequence'],\n '9231': ['US', '1', 'MRAcquisitionPhaseEncodingStepsInPlane'],\n '9232': ['US', '1', 'MRAcquisitionPhaseEncodingStepsOutOfPlane'],\n '9234': ['UL', '1', 'SpectroscopyAcquisitionPhaseColumns'],\n '9236': ['CS', '1', 'CardiacCyclePosition'],\n '9239': ['SQ', '1', 'SpecificAbsorptionRateSequence'],\n '9240': ['US', '1', 'RFEchoTrainLength'],\n '9241': ['US', '1', 'GradientEchoTrainLength'],\n '9250': ['CS', '1', 'ArterialSpinLabelingContrast'],\n '9251': ['SQ', '1', 'MRArterialSpinLabelingSequence'],\n '9252': ['LO', '1', 'ASLTechniqueDescription'],\n '9253': ['US', '1', 'ASLSlabNumber'],\n '9254': ['FD', '1', 'ASLSlabThickness'],\n '9255': ['FD', '3', 'ASLSlabOrientation'],\n '9256': ['FD', '3', 'ASLMidSlabPosition'],\n '9257': ['CS', '1', 'ASLContext'],\n '9258': ['UL', '1', 'ASLPulseTrainDuration'],\n '9259': ['CS', '1', 'ASLCrusherFlag'],\n '925A': ['FD', '1', 'ASLCrusherFlowLimit'],\n '925B': ['LO', '1', 'ASLCrusherDescription'],\n '925C': ['CS', '1', 'ASLBolusCutoffFlag'],\n '925D': ['SQ', '1', 'ASLBolusCutoffTimingSequence'],\n '925E': ['LO', '1', 'ASLBolusCutoffTechnique'],\n '925F': ['UL', '1', 'ASLBolusCutoffDelayTime'],\n '9260': ['SQ', '1', 'ASLSlabSequence'],\n '9295': ['FD', '1', 'ChemicalShiftMinimumIntegrationLimitInppm'],\n '9296': ['FD', '1', 'ChemicalShiftMaximumIntegrationLimitInppm'],\n '9297': ['CS', '1', 'WaterReferenceAcquisition'],\n '9298': ['IS', '1', 'EchoPeakPosition'],\n '9301': ['SQ', '1', 'CTAcquisitionTypeSequence'],\n '9302': ['CS', '1', 'AcquisitionType'],\n '9303': ['FD', '1', 'TubeAngle'],\n '9304': ['SQ', '1', 'CTAcquisitionDetailsSequence'],\n '9305': ['FD', '1', 'RevolutionTime'],\n '9306': ['FD', '1', 'SingleCollimationWidth'],\n '9307': ['FD', '1', 'TotalCollimationWidth'],\n '9308': ['SQ', '1', 'CTTableDynamicsSequence'],\n '9309': ['FD', '1', 'TableSpeed'],\n '9310': ['FD', '1', 'TableFeedPerRotation'],\n '9311': ['FD', '1', 'SpiralPitchFactor'],\n '9312': ['SQ', '1', 'CTGeometrySequence'],\n '9313': ['FD', '3', 'DataCollectionCenterPatient'],\n '9314': ['SQ', '1', 'CTReconstructionSequence'],\n '9315': ['CS', '1', 'ReconstructionAlgorithm'],\n '9316': ['CS', '1', 'ConvolutionKernelGroup'],\n '9317': ['FD', '2', 'ReconstructionFieldOfView'],\n '9318': ['FD', '3', 'ReconstructionTargetCenterPatient'],\n '9319': ['FD', '1', 'ReconstructionAngle'],\n '9320': ['SH', '1', 'ImageFilter'],\n '9321': ['SQ', '1', 'CTExposureSequence'],\n '9322': ['FD', '2', 'ReconstructionPixelSpacing'],\n '9323': ['CS', '1-n', 'ExposureModulationType'],\n '9324': ['FD', '1', 'EstimatedDoseSaving'],\n '9325': ['SQ', '1', 'CTXRayDetailsSequence'],\n '9326': ['SQ', '1', 'CTPositionSequence'],\n '9327': ['FD', '1', 'TablePosition'],\n '9328': ['FD', '1', 'ExposureTimeInms'],\n '9329': ['SQ', '1', 'CTImageFrameTypeSequence'],\n '9330': ['FD', '1', 'XRayTubeCurrentInmA'],\n '9332': ['FD', '1', 'ExposureInmAs'],\n '9333': ['CS', '1', 'ConstantVolumeFlag'],\n '9334': ['CS', '1', 'FluoroscopyFlag'],\n '9335': ['FD', '1', 'DistanceSourceToDataCollectionCenter'],\n '9337': ['US', '1', 'ContrastBolusAgentNumber'],\n '9338': ['SQ', '1', 'ContrastBolusIngredientCodeSequence'],\n '9340': ['SQ', '1', 'ContrastAdministrationProfileSequence'],\n '9341': ['SQ', '1', 'ContrastBolusUsageSequence'],\n '9342': ['CS', '1', 'ContrastBolusAgentAdministered'],\n '9343': ['CS', '1', 'ContrastBolusAgentDetected'],\n '9344': ['CS', '1', 'ContrastBolusAgentPhase'],\n '9345': ['FD', '1', 'CTDIvol'],\n '9346': ['SQ', '1', 'CTDIPhantomTypeCodeSequence'],\n '9351': ['FL', '1', 'CalciumScoringMassFactorPatient'],\n '9352': ['FL', '3', 'CalciumScoringMassFactorDevice'],\n '9353': ['FL', '1', 'EnergyWeightingFactor'],\n '9360': ['SQ', '1', 'CTAdditionalXRaySourceSequence'],\n '9361': ['CS', '1', 'MultienergyCTAcquisition'],\n '9362': ['SQ', '1', 'MultienergyCTAcquisitionSequence'],\n '9363': ['SQ', '1', 'MultienergyCTProcessingSequence'],\n '9364': ['SQ', '1', 'MultienergyCTCharacteristicsSequence'],\n '9365': ['SQ', '1', 'MultienergyCTXRaySourceSequence'],\n '9366': ['US', '1', 'XRaySourceIndex'],\n '9367': ['UC', '1', 'XRaySourceID'],\n '9368': ['CS', '1', 'MultienergySourceTechnique'],\n '9369': ['DT', '1', 'SourceStartDateTime'],\n '936A': ['DT', '1', 'SourceEndDateTime'],\n '936B': ['US', '1', 'SwitchingPhaseNumber'],\n '936C': ['DS', '1', 'SwitchingPhaseNominalDuration'],\n '936D': ['DS', '1', 'SwitchingPhaseTransitionDuration'],\n '936E': ['DS', '1', 'EffectiveBinEnergy'],\n '936F': ['SQ', '1', 'MultienergyCTXRayDetectorSequence'],\n '9370': ['US', '1', 'XRayDetectorIndex'],\n '9371': ['UC', '1', 'XRayDetectorID'],\n '9372': ['CS', '1', 'MultienergyDetectorType'],\n '9373': ['ST', '1', 'XRayDetectorLabel'],\n '9374': ['DS', '1', 'NominalMaxEnergy'],\n '9375': ['DS', '1', 'NominalMinEnergy'],\n '9376': ['US', '1-n', 'ReferencedXRayDetectorIndex'],\n '9377': ['US', '1-n', 'ReferencedXRaySourceIndex'],\n '9378': ['US', '1-n', 'ReferencedPathIndex'],\n '9379': ['SQ', '1', 'MultienergyCTPathSequence'],\n '937A': ['US', '1', 'MultienergyCTPathIndex'],\n '937B': ['UT', '1', 'MultienergyAcquisitionDescription'],\n '937C': ['FD', '1', 'MonoenergeticEnergyEquivalent'],\n '937D': ['SQ', '1', 'MaterialCodeSequence'],\n '937E': ['CS', '1', 'DecompositionMethod'],\n '937F': ['UT', '1', 'DecompositionDescription'],\n '9380': ['SQ', '1', 'DecompositionAlgorithmIdentificationSequence'],\n '9381': ['SQ', '1', 'DecompositionMaterialSequence'],\n '9382': ['SQ', '1', 'MaterialAttenuationSequence'],\n '9383': ['DS', '1', 'PhotonEnergy'],\n '9384': ['DS', '1', 'XRayMassAttenuationCoefficient'],\n '9401': ['SQ', '1', 'ProjectionPixelCalibrationSequence'],\n '9402': ['FL', '1', 'DistanceSourceToIsocenter'],\n '9403': ['FL', '1', 'DistanceObjectToTableTop'],\n '9404': ['FL', '2', 'ObjectPixelSpacingInCenterOfBeam'],\n '9405': ['SQ', '1', 'PositionerPositionSequence'],\n '9406': ['SQ', '1', 'TablePositionSequence'],\n '9407': ['SQ', '1', 'CollimatorShapeSequence'],\n '9410': ['CS', '1', 'PlanesInAcquisition'],\n '9412': ['SQ', '1', 'XAXRFFrameCharacteristicsSequence'],\n '9417': ['SQ', '1', 'FrameAcquisitionSequence'],\n '9420': ['CS', '1', 'XRayReceptorType'],\n '9423': ['LO', '1', 'AcquisitionProtocolName'],\n '9424': ['LT', '1', 'AcquisitionProtocolDescription'],\n '9425': ['CS', '1', 'ContrastBolusIngredientOpaque'],\n '9426': ['FL', '1', 'DistanceReceptorPlaneToDetectorHousing'],\n '9427': ['CS', '1', 'IntensifierActiveShape'],\n '9428': ['FL', '1-2', 'IntensifierActiveDimensions'],\n '9429': ['FL', '2', 'PhysicalDetectorSize'],\n '9430': ['FL', '2', 'PositionOfIsocenterProjection'],\n '9432': ['SQ', '1', 'FieldOfViewSequence'],\n '9433': ['LO', '1', 'FieldOfViewDescription'],\n '9434': ['SQ', '1', 'ExposureControlSensingRegionsSequence'],\n '9435': ['CS', '1', 'ExposureControlSensingRegionShape'],\n '9436': ['SS', '1', 'ExposureControlSensingRegionLeftVerticalEdge'],\n '9437': ['SS', '1', 'ExposureControlSensingRegionRightVerticalEdge'],\n '9438': ['SS', '1', 'ExposureControlSensingRegionUpperHorizontalEdge'],\n '9439': ['SS', '1', 'ExposureControlSensingRegionLowerHorizontalEdge'],\n '9440': ['SS', '2', 'CenterOfCircularExposureControlSensingRegion'],\n '9441': ['US', '1', 'RadiusOfCircularExposureControlSensingRegion'],\n '9442': ['SS', '2-n', 'VerticesOfThePolygonalExposureControlSensingRegion'],\n '9445': ['', '', ''],\n '9447': ['FL', '1', 'ColumnAngulationPatient'],\n '9449': ['FL', '1', 'BeamAngle'],\n '9451': ['SQ', '1', 'FrameDetectorParametersSequence'],\n '9452': ['FL', '1', 'CalculatedAnatomyThickness'],\n '9455': ['SQ', '1', 'CalibrationSequence'],\n '9456': ['SQ', '1', 'ObjectThicknessSequence'],\n '9457': ['CS', '1', 'PlaneIdentification'],\n '9461': ['FL', '1-2', 'FieldOfViewDimensionsInFloat'],\n '9462': ['SQ', '1', 'IsocenterReferenceSystemSequence'],\n '9463': ['FL', '1', 'PositionerIsocenterPrimaryAngle'],\n '9464': ['FL', '1', 'PositionerIsocenterSecondaryAngle'],\n '9465': ['FL', '1', 'PositionerIsocenterDetectorRotationAngle'],\n '9466': ['FL', '1', 'TableXPositionToIsocenter'],\n '9467': ['FL', '1', 'TableYPositionToIsocenter'],\n '9468': ['FL', '1', 'TableZPositionToIsocenter'],\n '9469': ['FL', '1', 'TableHorizontalRotationAngle'],\n '9470': ['FL', '1', 'TableHeadTiltAngle'],\n '9471': ['FL', '1', 'TableCradleTiltAngle'],\n '9472': ['SQ', '1', 'FrameDisplayShutterSequence'],\n '9473': ['FL', '1', 'AcquiredImageAreaDoseProduct'],\n '9474': ['CS', '1', 'CArmPositionerTabletopRelationship'],\n '9476': ['SQ', '1', 'XRayGeometrySequence'],\n '9477': ['SQ', '1', 'IrradiationEventIdentificationSequence'],\n '9504': ['SQ', '1', 'XRay3DFrameTypeSequence'],\n '9506': ['SQ', '1', 'ContributingSourcesSequence'],\n '9507': ['SQ', '1', 'XRay3DAcquisitionSequence'],\n '9508': ['FL', '1', 'PrimaryPositionerScanArc'],\n '9509': ['FL', '1', 'SecondaryPositionerScanArc'],\n '9510': ['FL', '1', 'PrimaryPositionerScanStartAngle'],\n '9511': ['FL', '1', 'SecondaryPositionerScanStartAngle'],\n '9514': ['FL', '1', 'PrimaryPositionerIncrement'],\n '9515': ['FL', '1', 'SecondaryPositionerIncrement'],\n '9516': ['DT', '1', 'StartAcquisitionDateTime'],\n '9517': ['DT', '1', 'EndAcquisitionDateTime'],\n '9518': ['SS', '1', 'PrimaryPositionerIncrementSign'],\n '9519': ['SS', '1', 'SecondaryPositionerIncrementSign'],\n '9524': ['LO', '1', 'ApplicationName'],\n '9525': ['LO', '1', 'ApplicationVersion'],\n '9526': ['LO', '1', 'ApplicationManufacturer'],\n '9527': ['CS', '1', 'AlgorithmType'],\n '9528': ['LO', '1', 'AlgorithmDescription'],\n '9530': ['SQ', '1', 'XRay3DReconstructionSequence'],\n '9531': ['LO', '1', 'ReconstructionDescription'],\n '9538': ['SQ', '1', 'PerProjectionAcquisitionSequence'],\n '9541': ['SQ', '1', 'DetectorPositionSequence'],\n '9542': ['SQ', '1', 'XRayAcquisitionDoseSequence'],\n '9543': ['FD', '1', 'XRaySourceIsocenterPrimaryAngle'],\n '9544': ['FD', '1', 'XRaySourceIsocenterSecondaryAngle'],\n '9545': ['FD', '1', 'BreastSupportIsocenterPrimaryAngle'],\n '9546': ['FD', '1', 'BreastSupportIsocenterSecondaryAngle'],\n '9547': ['FD', '1', 'BreastSupportXPositionToIsocenter'],\n '9548': ['FD', '1', 'BreastSupportYPositionToIsocenter'],\n '9549': ['FD', '1', 'BreastSupportZPositionToIsocenter'],\n '9550': ['FD', '1', 'DetectorIsocenterPrimaryAngle'],\n '9551': ['FD', '1', 'DetectorIsocenterSecondaryAngle'],\n '9552': ['FD', '1', 'DetectorXPositionToIsocenter'],\n '9553': ['FD', '1', 'DetectorYPositionToIsocenter'],\n '9554': ['FD', '1', 'DetectorZPositionToIsocenter'],\n '9555': ['SQ', '1', 'XRayGridSequence'],\n '9556': ['SQ', '1', 'XRayFilterSequence'],\n '9557': ['FD', '3', 'DetectorActiveAreaTLHCPosition'],\n '9558': ['FD', '6', 'DetectorActiveAreaOrientation'],\n '9559': ['CS', '1', 'PositionerPrimaryAngleDirection'],\n '9601': ['SQ', '1', 'DiffusionBMatrixSequence'],\n '9602': ['FD', '1', 'DiffusionBValueXX'],\n '9603': ['FD', '1', 'DiffusionBValueXY'],\n '9604': ['FD', '1', 'DiffusionBValueXZ'],\n '9605': ['FD', '1', 'DiffusionBValueYY'],\n '9606': ['FD', '1', 'DiffusionBValueYZ'],\n '9607': ['FD', '1', 'DiffusionBValueZZ'],\n '9621': ['SQ', '1', 'FunctionalMRSequence'],\n '9622': ['CS', '1', 'FunctionalSettlingPhaseFramesPresent'],\n '9623': ['DT', '1', 'FunctionalSyncPulse'],\n '9624': ['CS', '1', 'SettlingPhaseFrame'],\n '9701': ['DT', '1', 'DecayCorrectionDateTime'],\n '9715': ['FD', '1', 'StartDensityThreshold'],\n '9716': ['FD', '1', 'StartRelativeDensityDifferenceThreshold'],\n '9717': ['FD', '1', 'StartCardiacTriggerCountThreshold'],\n '9718': ['FD', '1', 'StartRespiratoryTriggerCountThreshold'],\n '9719': ['FD', '1', 'TerminationCountsThreshold'],\n '9720': ['FD', '1', 'TerminationDensityThreshold'],\n '9721': ['FD', '1', 'TerminationRelativeDensityThreshold'],\n '9722': ['FD', '1', 'TerminationTimeThreshold'],\n '9723': ['FD', '1', 'TerminationCardiacTriggerCountThreshold'],\n '9724': ['FD', '1', 'TerminationRespiratoryTriggerCountThreshold'],\n '9725': ['CS', '1', 'DetectorGeometry'],\n '9726': ['FD', '1', 'TransverseDetectorSeparation'],\n '9727': ['FD', '1', 'AxialDetectorDimension'],\n '9729': ['US', '1', 'RadiopharmaceuticalAgentNumber'],\n '9732': ['SQ', '1', 'PETFrameAcquisitionSequence'],\n '9733': ['SQ', '1', 'PETDetectorMotionDetailsSequence'],\n '9734': ['SQ', '1', 'PETTableDynamicsSequence'],\n '9735': ['SQ', '1', 'PETPositionSequence'],\n '9736': ['SQ', '1', 'PETFrameCorrectionFactorsSequence'],\n '9737': ['SQ', '1', 'RadiopharmaceuticalUsageSequence'],\n '9738': ['CS', '1', 'AttenuationCorrectionSource'],\n '9739': ['US', '1', 'NumberOfIterations'],\n '9740': ['US', '1', 'NumberOfSubsets'],\n '9749': ['SQ', '1', 'PETReconstructionSequence'],\n '9751': ['SQ', '1', 'PETFrameTypeSequence'],\n '9755': ['CS', '1', 'TimeOfFlightInformationUsed'],\n '9756': ['CS', '1', 'ReconstructionType'],\n '9758': ['CS', '1', 'DecayCorrected'],\n '9759': ['CS', '1', 'AttenuationCorrected'],\n '9760': ['CS', '1', 'ScatterCorrected'],\n '9761': ['CS', '1', 'DeadTimeCorrected'],\n '9762': ['CS', '1', 'GantryMotionCorrected'],\n '9763': ['CS', '1', 'PatientMotionCorrected'],\n '9764': ['CS', '1', 'CountLossNormalizationCorrected'],\n '9765': ['CS', '1', 'RandomsCorrected'],\n '9766': ['CS', '1', 'NonUniformRadialSamplingCorrected'],\n '9767': ['CS', '1', 'SensitivityCalibrated'],\n '9768': ['CS', '1', 'DetectorNormalizationCorrection'],\n '9769': ['CS', '1', 'IterativeReconstructionMethod'],\n '9770': ['CS', '1', 'AttenuationCorrectionTemporalRelationship'],\n '9771': ['SQ', '1', 'PatientPhysiologicalStateSequence'],\n '9772': ['SQ', '1', 'PatientPhysiologicalStateCodeSequence'],\n '9801': ['FD', '1-n', 'DepthsOfFocus'],\n '9803': ['SQ', '1', 'ExcludedIntervalsSequence'],\n '9804': ['DT', '1', 'ExclusionStartDateTime'],\n '9805': ['FD', '1', 'ExclusionDuration'],\n '9806': ['SQ', '1', 'USImageDescriptionSequence'],\n '9807': ['SQ', '1', 'ImageDataTypeSequence'],\n '9808': ['CS', '1', 'DataType'],\n '9809': ['SQ', '1', 'TransducerScanPatternCodeSequence'],\n '980B': ['CS', '1', 'AliasedDataType'],\n '980C': ['CS', '1', 'PositionMeasuringDeviceUsed'],\n '980D': ['SQ', '1', 'TransducerGeometryCodeSequence'],\n '980E': ['SQ', '1', 'TransducerBeamSteeringCodeSequence'],\n '980F': ['SQ', '1', 'TransducerApplicationCodeSequence'],\n '9810': ['xs', '1', 'ZeroVelocityPixelValue'],\n '9900': ['LO', '1', 'ReferenceLocationLabel'],\n '9901': ['UT', '1', 'ReferenceLocationDescription'],\n '9902': ['SQ', '1', 'ReferenceBasisCodeSequence'],\n '9903': ['SQ', '1', 'ReferenceGeometryCodeSequence'],\n '9904': ['DS', '1', 'OffsetDistance'],\n '9905': ['CS', '1', 'OffsetDirection'],\n '9906': ['SQ', '1', 'PotentialScheduledProtocolCodeSequence'],\n '9907': ['SQ', '1', 'PotentialRequestedProcedureCodeSequence'],\n '9908': ['UC', '1-n', 'PotentialReasonsForProcedure'],\n '9909': ['SQ', '1', 'PotentialReasonsForProcedureCodeSequence'],\n '990A': ['UC', '1-n', 'PotentialDiagnosticTasks'],\n '990B': ['SQ', '1', 'ContraindicationsCodeSequence'],\n '990C': ['SQ', '1', 'ReferencedDefinedProtocolSequence'],\n '990D': ['SQ', '1', 'ReferencedPerformedProtocolSequence'],\n '990E': ['SQ', '1', 'PredecessorProtocolSequence'],\n '990F': ['UT', '1', 'ProtocolPlanningInformation'],\n '9910': ['UT', '1', 'ProtocolDesignRationale'],\n '9911': ['SQ', '1', 'PatientSpecificationSequence'],\n '9912': ['SQ', '1', 'ModelSpecificationSequence'],\n '9913': ['SQ', '1', 'ParametersSpecificationSequence'],\n '9914': ['SQ', '1', 'InstructionSequence'],\n '9915': ['US', '1', 'InstructionIndex'],\n '9916': ['LO', '1', 'InstructionText'],\n '9917': ['UT', '1', 'InstructionDescription'],\n '9918': ['CS', '1', 'InstructionPerformedFlag'],\n '9919': ['DT', '1', 'InstructionPerformedDateTime'],\n '991A': ['UT', '1', 'InstructionPerformanceComment'],\n '991B': ['SQ', '1', 'PatientPositioningInstructionSequence'],\n '991C': ['SQ', '1', 'PositioningMethodCodeSequence'],\n '991D': ['SQ', '1', 'PositioningLandmarkSequence'],\n '991E': ['UI', '1', 'TargetFrameOfReferenceUID'],\n '991F': ['SQ', '1', 'AcquisitionProtocolElementSpecificationSequence'],\n '9920': ['SQ', '1', 'AcquisitionProtocolElementSequence'],\n '9921': ['US', '1', 'ProtocolElementNumber'],\n '9922': ['LO', '1', 'ProtocolElementName'],\n '9923': ['UT', '1', 'ProtocolElementCharacteristicsSummary'],\n '9924': ['UT', '1', 'ProtocolElementPurpose'],\n '9930': ['CS', '1', 'AcquisitionMotion'],\n '9931': ['SQ', '1', 'AcquisitionStartLocationSequence'],\n '9932': ['SQ', '1', 'AcquisitionEndLocationSequence'],\n '9933': ['SQ', '1', 'ReconstructionProtocolElementSpecificationSequence'],\n '9934': ['SQ', '1', 'ReconstructionProtocolElementSequence'],\n '9935': ['SQ', '1', 'StorageProtocolElementSpecificationSequence'],\n '9936': ['SQ', '1', 'StorageProtocolElementSequence'],\n '9937': ['LO', '1', 'RequestedSeriesDescription'],\n '9938': ['US', '1-n', 'SourceAcquisitionProtocolElementNumber'],\n '9939': ['US', '1-n', 'SourceAcquisitionBeamNumber'],\n '993A': ['US', '1-n', 'SourceReconstructionProtocolElementNumber'],\n '993B': ['SQ', '1', 'ReconstructionStartLocationSequence'],\n '993C': ['SQ', '1', 'ReconstructionEndLocationSequence'],\n '993D': ['SQ', '1', 'ReconstructionAlgorithmSequence'],\n '993E': ['SQ', '1', 'ReconstructionTargetCenterLocationSequence'],\n '9941': ['UT', '1', 'ImageFilterDescription'],\n '9942': ['FD', '1', 'CTDIvolNotificationTrigger'],\n '9943': ['FD', '1', 'DLPNotificationTrigger'],\n '9944': ['CS', '1', 'AutoKVPSelectionType'],\n '9945': ['FD', '1', 'AutoKVPUpperBound'],\n '9946': ['FD', '1', 'AutoKVPLowerBound'],\n '9947': ['CS', '1', 'ProtocolDefinedPatientPosition'],\n 'A001': ['SQ', '1', 'ContributingEquipmentSequence'],\n 'A002': ['DT', '1', 'ContributionDateTime'],\n 'A003': ['ST', '1', 'ContributionDescription']\n },\n '0020': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '000D': ['UI', '1', 'StudyInstanceUID'],\n '000E': ['UI', '1', 'SeriesInstanceUID'],\n '0010': ['SH', '1', 'StudyID'],\n '0011': ['IS', '1', 'SeriesNumber'],\n '0012': ['IS', '1', 'AcquisitionNumber'],\n '0013': ['IS', '1', 'InstanceNumber'],\n '0014': ['IS', '1', 'IsotopeNumber'],\n '0015': ['IS', '1', 'PhaseNumber'],\n '0016': ['IS', '1', 'IntervalNumber'],\n '0017': ['IS', '1', 'TimeSlotNumber'],\n '0018': ['IS', '1', 'AngleNumber'],\n '0019': ['IS', '1', 'ItemNumber'],\n '0020': ['CS', '2', 'PatientOrientation'],\n '0022': ['IS', '1', 'OverlayNumber'],\n '0024': ['IS', '1', 'CurveNumber'],\n '0026': ['IS', '1', 'LUTNumber'],\n '0030': ['DS', '3', 'ImagePosition'],\n '0032': ['DS', '3', 'ImagePositionPatient'],\n '0035': ['DS', '6', 'ImageOrientation'],\n '0037': ['DS', '6', 'ImageOrientationPatient'],\n '0050': ['DS', '1', 'Location'],\n '0052': ['UI', '1', 'FrameOfReferenceUID'],\n '0060': ['CS', '1', 'Laterality'],\n '0062': ['CS', '1', 'ImageLaterality'],\n '0070': ['LO', '1', 'ImageGeometryType'],\n '0080': ['CS', '1-n', 'MaskingImage'],\n '00AA': ['IS', '1', 'ReportNumber'],\n '0100': ['IS', '1', 'TemporalPositionIdentifier'],\n '0105': ['IS', '1', 'NumberOfTemporalPositions'],\n '0110': ['DS', '1', 'TemporalResolution'],\n '0200': ['UI', '1', 'SynchronizationFrameOfReferenceUID'],\n '0242': ['UI', '1', 'SOPInstanceUIDOfConcatenationSource'],\n '1000': ['IS', '1', 'SeriesInStudy'],\n '1001': ['IS', '1', 'AcquisitionsInSeries'],\n '1002': ['IS', '1', 'ImagesInAcquisition'],\n '1003': ['IS', '1', 'ImagesInSeries'],\n '1004': ['IS', '1', 'AcquisitionsInStudy'],\n '1005': ['IS', '1', 'ImagesInStudy'],\n '1020': ['LO', '1-n', 'Reference'],\n '103F': ['LO', '1', 'TargetPositionReferenceIndicator'],\n '1040': ['LO', '1', 'PositionReferenceIndicator'],\n '1041': ['DS', '1', 'SliceLocation'],\n '1070': ['IS', '1-n', 'OtherStudyNumbers'],\n '1200': ['IS', '1', 'NumberOfPatientRelatedStudies'],\n '1202': ['IS', '1', 'NumberOfPatientRelatedSeries'],\n '1204': ['IS', '1', 'NumberOfPatientRelatedInstances'],\n '1206': ['IS', '1', 'NumberOfStudyRelatedSeries'],\n '1208': ['IS', '1', 'NumberOfStudyRelatedInstances'],\n '1209': ['IS', '1', 'NumberOfSeriesRelatedInstances'],\n '3100': ['CS', '1-n', 'SourceImageIDs'],\n '3401': ['CS', '1', 'ModifyingDeviceID'],\n '3402': ['CS', '1', 'ModifiedImageID'],\n '3403': ['DA', '1', 'ModifiedImageDate'],\n '3404': ['LO', '1', 'ModifyingDeviceManufacturer'],\n '3405': ['TM', '1', 'ModifiedImageTime'],\n '3406': ['LO', '1', 'ModifiedImageDescription'],\n '4000': ['LT', '1', 'ImageComments'],\n '5000': ['AT', '1-n', 'OriginalImageIdentification'],\n '5002': ['LO', '1-n', 'OriginalImageIdentificationNomenclature'],\n '9056': ['SH', '1', 'StackID'],\n '9057': ['UL', '1', 'InStackPositionNumber'],\n '9071': ['SQ', '1', 'FrameAnatomySequence'],\n '9072': ['CS', '1', 'FrameLaterality'],\n '9111': ['SQ', '1', 'FrameContentSequence'],\n '9113': ['SQ', '1', 'PlanePositionSequence'],\n '9116': ['SQ', '1', 'PlaneOrientationSequence'],\n '9128': ['UL', '1', 'TemporalPositionIndex'],\n '9153': ['FD', '1', 'NominalCardiacTriggerDelayTime'],\n '9154': ['FL', '1', 'NominalCardiacTriggerTimePriorToRPeak'],\n '9155': ['FL', '1', 'ActualCardiacTriggerTimePriorToRPeak'],\n '9156': ['US', '1', 'FrameAcquisitionNumber'],\n '9157': ['UL', '1-n', 'DimensionIndexValues'],\n '9158': ['LT', '1', 'FrameComments'],\n '9161': ['UI', '1', 'ConcatenationUID'],\n '9162': ['US', '1', 'InConcatenationNumber'],\n '9163': ['US', '1', 'InConcatenationTotalNumber'],\n '9164': ['UI', '1', 'DimensionOrganizationUID'],\n '9165': ['AT', '1', 'DimensionIndexPointer'],\n '9167': ['AT', '1', 'FunctionalGroupPointer'],\n '9170': ['SQ', '1', 'UnassignedSharedConvertedAttributesSequence'],\n '9171': ['SQ', '1', 'UnassignedPerFrameConvertedAttributesSequence'],\n '9172': ['SQ', '1', 'ConversionSourceAttributesSequence'],\n '9213': ['LO', '1', 'DimensionIndexPrivateCreator'],\n '9221': ['SQ', '1', 'DimensionOrganizationSequence'],\n '9222': ['SQ', '1', 'DimensionIndexSequence'],\n '9228': ['UL', '1', 'ConcatenationFrameOffsetNumber'],\n '9238': ['LO', '1', 'FunctionalGroupPrivateCreator'],\n '9241': ['FL', '1', 'NominalPercentageOfCardiacPhase'],\n '9245': ['FL', '1', 'NominalPercentageOfRespiratoryPhase'],\n '9246': ['FL', '1', 'StartingRespiratoryAmplitude'],\n '9247': ['CS', '1', 'StartingRespiratoryPhase'],\n '9248': ['FL', '1', 'EndingRespiratoryAmplitude'],\n '9249': ['CS', '1', 'EndingRespiratoryPhase'],\n '9250': ['CS', '1', 'RespiratoryTriggerType'],\n '9251': ['FD', '1', 'RRIntervalTimeNominal'],\n '9252': ['FD', '1', 'ActualCardiacTriggerDelayTime'],\n '9253': ['SQ', '1', 'RespiratorySynchronizationSequence'],\n '9254': ['FD', '1', 'RespiratoryIntervalTime'],\n '9255': ['FD', '1', 'NominalRespiratoryTriggerDelayTime'],\n '9256': ['FD', '1', 'RespiratoryTriggerDelayThreshold'],\n '9257': ['FD', '1', 'ActualRespiratoryTriggerDelayTime'],\n '9301': ['FD', '3', 'ImagePositionVolume'],\n '9302': ['FD', '6', 'ImageOrientationVolume'],\n '9307': ['CS', '1', 'UltrasoundAcquisitionGeometry'],\n '9308': ['FD', '3', 'ApexPosition'],\n '9309': ['FD', '16', 'VolumeToTransducerMappingMatrix'],\n '930A': ['FD', '16', 'VolumeToTableMappingMatrix'],\n '930B': ['CS', '1', 'VolumeToTransducerRelationship'],\n '930C': ['CS', '1', 'PatientFrameOfReferenceSource'],\n '930D': ['FD', '1', 'TemporalPositionTimeOffset'],\n '930E': ['SQ', '1', 'PlanePositionVolumeSequence'],\n '930F': ['SQ', '1', 'PlaneOrientationVolumeSequence'],\n '9310': ['SQ', '1', 'TemporalPositionSequence'],\n '9311': ['CS', '1', 'DimensionOrganizationType'],\n '9312': ['UI', '1', 'VolumeFrameOfReferenceUID'],\n '9313': ['UI', '1', 'TableFrameOfReferenceUID'],\n '9421': ['LO', '1', 'DimensionDescriptionLabel'],\n '9450': ['SQ', '1', 'PatientOrientationInFrameSequence'],\n '9453': ['LO', '1', 'FrameLabel'],\n '9518': ['US', '1-n', 'AcquisitionIndex'],\n '9529': ['SQ', '1', 'ContributingSOPInstancesReferenceSequence'],\n '9536': ['US', '1', 'ReconstructionIndex']\n },\n '0022': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['US', '1', 'LightPathFilterPassThroughWavelength'],\n '0002': ['US', '2', 'LightPathFilterPassBand'],\n '0003': ['US', '1', 'ImagePathFilterPassThroughWavelength'],\n '0004': ['US', '2', 'ImagePathFilterPassBand'],\n '0005': ['CS', '1', 'PatientEyeMovementCommanded'],\n '0006': ['SQ', '1', 'PatientEyeMovementCommandCodeSequence'],\n '0007': ['FL', '1', 'SphericalLensPower'],\n '0008': ['FL', '1', 'CylinderLensPower'],\n '0009': ['FL', '1', 'CylinderAxis'],\n '000A': ['FL', '1', 'EmmetropicMagnification'],\n '000B': ['FL', '1', 'IntraOcularPressure'],\n '000C': ['FL', '1', 'HorizontalFieldOfView'],\n '000D': ['CS', '1', 'PupilDilated'],\n '000E': ['FL', '1', 'DegreeOfDilation'],\n '0010': ['FL', '1', 'StereoBaselineAngle'],\n '0011': ['FL', '1', 'StereoBaselineDisplacement'],\n '0012': ['FL', '1', 'StereoHorizontalPixelOffset'],\n '0013': ['FL', '1', 'StereoVerticalPixelOffset'],\n '0014': ['FL', '1', 'StereoRotation'],\n '0015': ['SQ', '1', 'AcquisitionDeviceTypeCodeSequence'],\n '0016': ['SQ', '1', 'IlluminationTypeCodeSequence'],\n '0017': ['SQ', '1', 'LightPathFilterTypeStackCodeSequence'],\n '0018': ['SQ', '1', 'ImagePathFilterTypeStackCodeSequence'],\n '0019': ['SQ', '1', 'LensesCodeSequence'],\n '001A': ['SQ', '1', 'ChannelDescriptionCodeSequence'],\n '001B': ['SQ', '1', 'RefractiveStateSequence'],\n '001C': ['SQ', '1', 'MydriaticAgentCodeSequence'],\n '001D': ['SQ', '1', 'RelativeImagePositionCodeSequence'],\n '001E': ['FL', '1', 'CameraAngleOfView'],\n '0020': ['SQ', '1', 'StereoPairsSequence'],\n '0021': ['SQ', '1', 'LeftImageSequence'],\n '0022': ['SQ', '1', 'RightImageSequence'],\n '0028': ['CS', '1', 'StereoPairsPresent'],\n '0030': ['FL', '1', 'AxialLengthOfTheEye'],\n '0031': ['SQ', '1', 'OphthalmicFrameLocationSequence'],\n '0032': ['FL', '2-2n', 'ReferenceCoordinates'],\n '0035': ['FL', '1', 'DepthSpatialResolution'],\n '0036': ['FL', '1', 'MaximumDepthDistortion'],\n '0037': ['FL', '1', 'AlongScanSpatialResolution'],\n '0038': ['FL', '1', 'MaximumAlongScanDistortion'],\n '0039': ['CS', '1', 'OphthalmicImageOrientation'],\n '0041': ['FL', '1', 'DepthOfTransverseImage'],\n '0042': ['SQ', '1', 'MydriaticAgentConcentrationUnitsSequence'],\n '0048': ['FL', '1', 'AcrossScanSpatialResolution'],\n '0049': ['FL', '1', 'MaximumAcrossScanDistortion'],\n '004E': ['DS', '1', 'MydriaticAgentConcentration'],\n '0055': ['FL', '1', 'IlluminationWaveLength'],\n '0056': ['FL', '1', 'IlluminationPower'],\n '0057': ['FL', '1', 'IlluminationBandwidth'],\n '0058': ['SQ', '1', 'MydriaticAgentSequence'],\n '1007': ['SQ', '1', 'OphthalmicAxialMeasurementsRightEyeSequence'],\n '1008': ['SQ', '1', 'OphthalmicAxialMeasurementsLeftEyeSequence'],\n '1009': ['CS', '1', 'OphthalmicAxialMeasurementsDeviceType'],\n '1010': ['CS', '1', 'OphthalmicAxialLengthMeasurementsType'],\n '1012': ['SQ', '1', 'OphthalmicAxialLengthSequence'],\n '1019': ['FL', '1', 'OphthalmicAxialLength'],\n '1024': ['SQ', '1', 'LensStatusCodeSequence'],\n '1025': ['SQ', '1', 'VitreousStatusCodeSequence'],\n '1028': ['SQ', '1', 'IOLFormulaCodeSequence'],\n '1029': ['LO', '1', 'IOLFormulaDetail'],\n '1033': ['FL', '1', 'KeratometerIndex'],\n '1035': ['SQ', '1', 'SourceOfOphthalmicAxialLengthCodeSequence'],\n '1036': ['SQ', '1', 'SourceOfCornealSizeDataCodeSequence'],\n '1037': ['FL', '1', 'TargetRefraction'],\n '1039': ['CS', '1', 'RefractiveProcedureOccurred'],\n '1040': ['SQ', '1', 'RefractiveSurgeryTypeCodeSequence'],\n '1044': ['SQ', '1', 'OphthalmicUltrasoundMethodCodeSequence'],\n '1045': ['SQ', '1', 'SurgicallyInducedAstigmatismSequence'],\n '1046': ['CS', '1', 'TypeOfOpticalCorrection'],\n '1047': ['SQ', '1', 'ToricIOLPowerSequence'],\n '1048': ['SQ', '1', 'PredictedToricErrorSequence'],\n '1049': ['CS', '1', 'PreSelectedForImplantation'],\n '104A': ['SQ', '1', 'ToricIOLPowerForExactEmmetropiaSequence'],\n '104B': ['SQ', '1', 'ToricIOLPowerForExactTargetRefractionSequence'],\n '1050': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsSequence'],\n '1053': ['FL', '1', 'IOLPower'],\n '1054': ['FL', '1', 'PredictedRefractiveError'],\n '1059': ['FL', '1', 'OphthalmicAxialLengthVelocity'],\n '1065': ['LO', '1', 'LensStatusDescription'],\n '1066': ['LO', '1', 'VitreousStatusDescription'],\n '1090': ['SQ', '1', 'IOLPowerSequence'],\n '1092': ['SQ', '1', 'LensConstantSequence'],\n '1093': ['LO', '1', 'IOLManufacturer'],\n '1094': ['LO', '1', 'LensConstantDescription'],\n '1095': ['LO', '1', 'ImplantName'],\n '1096': ['SQ', '1', 'KeratometryMeasurementTypeCodeSequence'],\n '1097': ['LO', '1', 'ImplantPartNumber'],\n '1100': ['SQ', '1', 'ReferencedOphthalmicAxialMeasurementsSequence'],\n '1101': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsSegmentNameCodeSequence'],\n '1103': ['SQ', '1', 'RefractiveErrorBeforeRefractiveSurgeryCodeSequence'],\n '1121': ['FL', '1', 'IOLPowerForExactEmmetropia'],\n '1122': ['FL', '1', 'IOLPowerForExactTargetRefraction'],\n '1125': ['SQ', '1', 'AnteriorChamberDepthDefinitionCodeSequence'],\n '1127': ['SQ', '1', 'LensThicknessSequence'],\n '1128': ['SQ', '1', 'AnteriorChamberDepthSequence'],\n '112A': ['SQ', '1', 'CalculationCommentSequence'],\n '112B': ['CS', '1', 'CalculationCommentType'],\n '112C': ['LT', '1', 'CalculationComment'],\n '1130': ['FL', '1', 'LensThickness'],\n '1131': ['FL', '1', 'AnteriorChamberDepth'],\n '1132': ['SQ', '1', 'SourceOfLensThicknessDataCodeSequence'],\n '1133': ['SQ', '1', 'SourceOfAnteriorChamberDepthDataCodeSequence'],\n '1134': ['SQ', '1', 'SourceOfRefractiveMeasurementsSequence'],\n '1135': ['SQ', '1', 'SourceOfRefractiveMeasurementsCodeSequence'],\n '1140': ['CS', '1', 'OphthalmicAxialLengthMeasurementModified'],\n '1150': ['SQ', '1', 'OphthalmicAxialLengthDataSourceCodeSequence'],\n '1153': ['SQ', '1', 'OphthalmicAxialLengthAcquisitionMethodCodeSequence'],\n '1155': ['FL', '1', 'SignalToNoiseRatio'],\n '1159': ['LO', '1', 'OphthalmicAxialLengthDataSourceDescription'],\n '1210': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsTotalLengthSequence'],\n '1211': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsSegmentalLengthSequence'],\n '1212': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsLengthSummationSequence'],\n '1220': ['SQ', '1', 'UltrasoundOphthalmicAxialLengthMeasurementsSequence'],\n '1225': ['SQ', '1', 'OpticalOphthalmicAxialLengthMeasurementsSequence'],\n '1230': ['SQ', '1', 'UltrasoundSelectedOphthalmicAxialLengthSequence'],\n '1250': ['SQ', '1', 'OphthalmicAxialLengthSelectionMethodCodeSequence'],\n '1255': ['SQ', '1', 'OpticalSelectedOphthalmicAxialLengthSequence'],\n '1257': ['SQ', '1', 'SelectedSegmentalOphthalmicAxialLengthSequence'],\n '1260': ['SQ', '1', 'SelectedTotalOphthalmicAxialLengthSequence'],\n '1262': ['SQ', '1', 'OphthalmicAxialLengthQualityMetricSequence'],\n '1265': ['SQ', '1', 'OphthalmicAxialLengthQualityMetricTypeCodeSequence'],\n '1273': ['LO', '1', 'OphthalmicAxialLengthQualityMetricTypeDescription'],\n '1300': ['SQ', '1', 'IntraocularLensCalculationsRightEyeSequence'],\n '1310': ['SQ', '1', 'IntraocularLensCalculationsLeftEyeSequence'],\n '1330': ['SQ', '1', 'ReferencedOphthalmicAxialLengthMeasurementQCImageSequence'],\n '1415': ['CS', '1', 'OphthalmicMappingDeviceType'],\n '1420': ['SQ', '1', 'AcquisitionMethodCodeSequence'],\n '1423': ['SQ', '1', 'AcquisitionMethodAlgorithmSequence'],\n '1436': ['SQ', '1', 'OphthalmicThicknessMapTypeCodeSequence'],\n '1443': ['SQ', '1', 'OphthalmicThicknessMappingNormalsSequence'],\n '1445': ['SQ', '1', 'RetinalThicknessDefinitionCodeSequence'],\n '1450': ['SQ', '1', 'PixelValueMappingToCodedConceptSequence'],\n '1452': ['xs', '1', 'MappedPixelValue'],\n '1454': ['LO', '1', 'PixelValueMappingExplanation'],\n '1458': ['SQ', '1', 'OphthalmicThicknessMapQualityThresholdSequence'],\n '1460': ['FL', '1', 'OphthalmicThicknessMapThresholdQualityRating'],\n '1463': ['FL', '2', 'AnatomicStructureReferencePoint'],\n '1465': ['SQ', '1', 'RegistrationToLocalizerSequence'],\n '1466': ['CS', '1', 'RegisteredLocalizerUnits'],\n '1467': ['FL', '2', 'RegisteredLocalizerTopLeftHandCorner'],\n '1468': ['FL', '2', 'RegisteredLocalizerBottomRightHandCorner'],\n '1470': ['SQ', '1', 'OphthalmicThicknessMapQualityRatingSequence'],\n '1472': ['SQ', '1', 'RelevantOPTAttributesSequence'],\n '1512': ['SQ', '1', 'TransformationMethodCodeSequence'],\n '1513': ['SQ', '1', 'TransformationAlgorithmSequence'],\n '1515': ['CS', '1', 'OphthalmicAxialLengthMethod'],\n '1517': ['FL', '1', 'OphthalmicFOV'],\n '1518': ['SQ', '1', 'TwoDimensionalToThreeDimensionalMapSequence'],\n '1525': ['SQ', '1', 'WideFieldOphthalmicPhotographyQualityRatingSequence'],\n '1526': ['SQ', '1', 'WideFieldOphthalmicPhotographyQualityThresholdSequence'],\n '1527': ['FL', '1', 'WideFieldOphthalmicPhotographyThresholdQualityRating'],\n '1528': ['FL', '1', 'XCoordinatesCenterPixelViewAngle'],\n '1529': ['FL', '1', 'YCoordinatesCenterPixelViewAngle'],\n '1530': ['UL', '1', 'NumberOfMapPoints'],\n '1531': ['OF', '1', 'TwoDimensionalToThreeDimensionalMapData'],\n '1612': ['SQ', '1', 'DerivationAlgorithmSequence'],\n '1615': ['SQ', '1', 'OphthalmicImageTypeCodeSequence'],\n '1616': ['LO', '1', 'OphthalmicImageTypeDescription'],\n '1618': ['SQ', '1', 'ScanPatternTypeCodeSequence'],\n '1620': ['SQ', '1', 'ReferencedSurfaceMeshIdentificationSequence'],\n '1622': ['CS', '1', 'OphthalmicVolumetricPropertiesFlag'],\n '1624': ['FL', '1', 'OphthalmicAnatomicReferencePointXCoordinate'],\n '1626': ['FL', '1', 'OphthalmicAnatomicReferencePointYCoordinate'],\n '1628': ['SQ', '1', 'OphthalmicEnFaceImageQualityRatingSequence'],\n '1630': ['DS', '1', 'QualityThreshold'],\n '1640': ['SQ', '1', 'OCTBscanAnalysisAcquisitionParametersSequence'],\n '1642': ['UL', '1', 'NumberOfBscansPerFrame'],\n '1643': ['FL', '1', 'BscanSlabThickness'],\n '1644': ['FL', '1', 'DistanceBetweenBscanSlabs'],\n '1645': ['FL', '1', 'BscanCycleTime'],\n '1646': ['FL', '1-n', 'BscanCycleTimeVector'],\n '1649': ['FL', '1', 'AscanRate'],\n '1650': ['FL', '1', 'BscanRate'],\n '1658': ['UL', '1', 'SurfaceMeshZPixelOffset']\n },\n '0024': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['FL', '1', 'VisualFieldHorizontalExtent'],\n '0011': ['FL', '1', 'VisualFieldVerticalExtent'],\n '0012': ['CS', '1', 'VisualFieldShape'],\n '0016': ['SQ', '1', 'ScreeningTestModeCodeSequence'],\n '0018': ['FL', '1', 'MaximumStimulusLuminance'],\n '0020': ['FL', '1', 'BackgroundLuminance'],\n '0021': ['SQ', '1', 'StimulusColorCodeSequence'],\n '0024': ['SQ', '1', 'BackgroundIlluminationColorCodeSequence'],\n '0025': ['FL', '1', 'StimulusArea'],\n '0028': ['FL', '1', 'StimulusPresentationTime'],\n '0032': ['SQ', '1', 'FixationSequence'],\n '0033': ['SQ', '1', 'FixationMonitoringCodeSequence'],\n '0034': ['SQ', '1', 'VisualFieldCatchTrialSequence'],\n '0035': ['US', '1', 'FixationCheckedQuantity'],\n '0036': ['US', '1', 'PatientNotProperlyFixatedQuantity'],\n '0037': ['CS', '1', 'PresentedVisualStimuliDataFlag'],\n '0038': ['US', '1', 'NumberOfVisualStimuli'],\n '0039': ['CS', '1', 'ExcessiveFixationLossesDataFlag'],\n '0040': ['CS', '1', 'ExcessiveFixationLosses'],\n '0042': ['US', '1', 'StimuliRetestingQuantity'],\n '0044': ['LT', '1', 'CommentsOnPatientPerformanceOfVisualField'],\n '0045': ['CS', '1', 'FalseNegativesEstimateFlag'],\n '0046': ['FL', '1', 'FalseNegativesEstimate'],\n '0048': ['US', '1', 'NegativeCatchTrialsQuantity'],\n '0050': ['US', '1', 'FalseNegativesQuantity'],\n '0051': ['CS', '1', 'ExcessiveFalseNegativesDataFlag'],\n '0052': ['CS', '1', 'ExcessiveFalseNegatives'],\n '0053': ['CS', '1', 'FalsePositivesEstimateFlag'],\n '0054': ['FL', '1', 'FalsePositivesEstimate'],\n '0055': ['CS', '1', 'CatchTrialsDataFlag'],\n '0056': ['US', '1', 'PositiveCatchTrialsQuantity'],\n '0057': ['CS', '1', 'TestPointNormalsDataFlag'],\n '0058': ['SQ', '1', 'TestPointNormalsSequence'],\n '0059': ['CS', '1', 'GlobalDeviationProbabilityNormalsFlag'],\n '0060': ['US', '1', 'FalsePositivesQuantity'],\n '0061': ['CS', '1', 'ExcessiveFalsePositivesDataFlag'],\n '0062': ['CS', '1', 'ExcessiveFalsePositives'],\n '0063': ['CS', '1', 'VisualFieldTestNormalsFlag'],\n '0064': ['SQ', '1', 'ResultsNormalsSequence'],\n '0065': ['SQ', '1', 'AgeCorrectedSensitivityDeviationAlgorithmSequence'],\n '0066': ['FL', '1', 'GlobalDeviationFromNormal'],\n '0067': ['SQ', '1', 'GeneralizedDefectSensitivityDeviationAlgorithmSequence'],\n '0068': ['FL', '1', 'LocalizedDeviationFromNormal'],\n '0069': ['LO', '1', 'PatientReliabilityIndicator'],\n '0070': ['FL', '1', 'VisualFieldMeanSensitivity'],\n '0071': ['FL', '1', 'GlobalDeviationProbability'],\n '0072': ['CS', '1', 'LocalDeviationProbabilityNormalsFlag'],\n '0073': ['FL', '1', 'LocalizedDeviationProbability'],\n '0074': ['CS', '1', 'ShortTermFluctuationCalculated'],\n '0075': ['FL', '1', 'ShortTermFluctuation'],\n '0076': ['CS', '1', 'ShortTermFluctuationProbabilityCalculated'],\n '0077': ['FL', '1', 'ShortTermFluctuationProbability'],\n '0078': ['CS', '1', 'CorrectedLocalizedDeviationFromNormalCalculated'],\n '0079': ['FL', '1', 'CorrectedLocalizedDeviationFromNormal'],\n '0080': ['CS', '1', 'CorrectedLocalizedDeviationFromNormalProbabilityCalculated'],\n '0081': ['FL', '1', 'CorrectedLocalizedDeviationFromNormalProbability'],\n '0083': ['SQ', '1', 'GlobalDeviationProbabilitySequence'],\n '0085': ['SQ', '1', 'LocalizedDeviationProbabilitySequence'],\n '0086': ['CS', '1', 'FovealSensitivityMeasured'],\n '0087': ['FL', '1', 'FovealSensitivity'],\n '0088': ['FL', '1', 'VisualFieldTestDuration'],\n '0089': ['SQ', '1', 'VisualFieldTestPointSequence'],\n '0090': ['FL', '1', 'VisualFieldTestPointXCoordinate'],\n '0091': ['FL', '1', 'VisualFieldTestPointYCoordinate'],\n '0092': ['FL', '1', 'AgeCorrectedSensitivityDeviationValue'],\n '0093': ['CS', '1', 'StimulusResults'],\n '0094': ['FL', '1', 'SensitivityValue'],\n '0095': ['CS', '1', 'RetestStimulusSeen'],\n '0096': ['FL', '1', 'RetestSensitivityValue'],\n '0097': ['SQ', '1', 'VisualFieldTestPointNormalsSequence'],\n '0098': ['FL', '1', 'QuantifiedDefect'],\n '0100': ['FL', '1', 'AgeCorrectedSensitivityDeviationProbabilityValue'],\n '0102': ['CS', '1', 'GeneralizedDefectCorrectedSensitivityDeviationFlag'],\n '0103': ['FL', '1', 'GeneralizedDefectCorrectedSensitivityDeviationValue'],\n '0104': ['FL', '1', 'GeneralizedDefectCorrectedSensitivityDeviationProbabilityValue'],\n '0105': ['FL', '1', 'MinimumSensitivityValue'],\n '0106': ['CS', '1', 'BlindSpotLocalized'],\n '0107': ['FL', '1', 'BlindSpotXCoordinate'],\n '0108': ['FL', '1', 'BlindSpotYCoordinate'],\n '0110': ['SQ', '1', 'VisualAcuityMeasurementSequence'],\n '0112': ['SQ', '1', 'RefractiveParametersUsedOnPatientSequence'],\n '0113': ['CS', '1', 'MeasurementLaterality'],\n '0114': ['SQ', '1', 'OphthalmicPatientClinicalInformationLeftEyeSequence'],\n '0115': ['SQ', '1', 'OphthalmicPatientClinicalInformationRightEyeSequence'],\n '0117': ['CS', '1', 'FovealPointNormativeDataFlag'],\n '0118': ['FL', '1', 'FovealPointProbabilityValue'],\n '0120': ['CS', '1', 'ScreeningBaselineMeasured'],\n '0122': ['SQ', '1', 'ScreeningBaselineMeasuredSequence'],\n '0124': ['CS', '1', 'ScreeningBaselineType'],\n '0126': ['FL', '1', 'ScreeningBaselineValue'],\n '0202': ['LO', '1', 'AlgorithmSource'],\n '0306': ['LO', '1', 'DataSetName'],\n '0307': ['LO', '1', 'DataSetVersion'],\n '0308': ['LO', '1', 'DataSetSource'],\n '0309': ['LO', '1', 'DataSetDescription'],\n '0317': ['SQ', '1', 'VisualFieldTestReliabilityGlobalIndexSequence'],\n '0320': ['SQ', '1', 'VisualFieldGlobalResultsIndexSequence'],\n '0325': ['SQ', '1', 'DataObservationSequence'],\n '0338': ['CS', '1', 'IndexNormalsFlag'],\n '0341': ['FL', '1', 'IndexProbability'],\n '0344': ['SQ', '1', 'IndexProbabilitySequence']\n },\n '0028': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['US', '1', 'SamplesPerPixel'],\n '0003': ['US', '1', 'SamplesPerPixelUsed'],\n '0004': ['CS', '1', 'PhotometricInterpretation'],\n '0005': ['US', '1', 'ImageDimensions'],\n '0006': ['US', '1', 'PlanarConfiguration'],\n '0008': ['IS', '1', 'NumberOfFrames'],\n '0009': ['AT', '1-n', 'FrameIncrementPointer'],\n '000A': ['AT', '1-n', 'FrameDimensionPointer'],\n '0010': ['US', '1', 'Rows'],\n '0011': ['US', '1', 'Columns'],\n '0012': ['US', '1', 'Planes'],\n '0014': ['US', '1', 'UltrasoundColorDataPresent'],\n '0020': ['', '', ''],\n '0030': ['DS', '2', 'PixelSpacing'],\n '0031': ['DS', '2', 'ZoomFactor'],\n '0032': ['DS', '2', 'ZoomCenter'],\n '0034': ['IS', '2', 'PixelAspectRatio'],\n '0040': ['CS', '1', 'ImageFormat'],\n '0050': ['LO', '1-n', 'ManipulatedImage'],\n '0051': ['CS', '1-n', 'CorrectedImage'],\n '005F': ['LO', '1', 'CompressionRecognitionCode'],\n '0060': ['CS', '1', 'CompressionCode'],\n '0061': ['SH', '1', 'CompressionOriginator'],\n '0062': ['LO', '1', 'CompressionLabel'],\n '0063': ['SH', '1', 'CompressionDescription'],\n '0065': ['CS', '1-n', 'CompressionSequence'],\n '0066': ['AT', '1-n', 'CompressionStepPointers'],\n '0068': ['US', '1', 'RepeatInterval'],\n '0069': ['US', '1', 'BitsGrouped'],\n '0070': ['US', '1-n', 'PerimeterTable'],\n '0071': ['xs', '1', 'PerimeterValue'],\n '0080': ['US', '1', 'PredictorRows'],\n '0081': ['US', '1', 'PredictorColumns'],\n '0082': ['US', '1-n', 'PredictorConstants'],\n '0090': ['CS', '1', 'BlockedPixels'],\n '0091': ['US', '1', 'BlockRows'],\n '0092': ['US', '1', 'BlockColumns'],\n '0093': ['US', '1', 'RowOverlap'],\n '0094': ['US', '1', 'ColumnOverlap'],\n '0100': ['US', '1', 'BitsAllocated'],\n '0101': ['US', '1', 'BitsStored'],\n '0102': ['US', '1', 'HighBit'],\n '0103': ['US', '1', 'PixelRepresentation'],\n '0104': ['xs', '1', 'SmallestValidPixelValue'],\n '0105': ['xs', '1', 'LargestValidPixelValue'],\n '0106': ['xs', '1', 'SmallestImagePixelValue'],\n '0107': ['xs', '1', 'LargestImagePixelValue'],\n '0108': ['xs', '1', 'SmallestPixelValueInSeries'],\n '0109': ['xs', '1', 'LargestPixelValueInSeries'],\n '0110': ['xs', '1', 'SmallestImagePixelValueInPlane'],\n '0111': ['xs', '1', 'LargestImagePixelValueInPlane'],\n '0120': ['xs', '1', 'PixelPaddingValue'],\n '0121': ['xs', '1', 'PixelPaddingRangeLimit'],\n '0122': ['FL', '1', 'FloatPixelPaddingValue'],\n '0123': ['FD', '1', 'DoubleFloatPixelPaddingValue'],\n '0124': ['FL', '1', 'FloatPixelPaddingRangeLimit'],\n '0125': ['FD', '1', 'DoubleFloatPixelPaddingRangeLimit'],\n '0200': ['US', '1', 'ImageLocation'],\n '0300': ['CS', '1', 'QualityControlImage'],\n '0301': ['CS', '1', 'BurnedInAnnotation'],\n '0302': ['CS', '1', 'RecognizableVisualFeatures'],\n '0303': ['CS', '1', 'LongitudinalTemporalInformationModified'],\n '0304': ['UI', '1', 'ReferencedColorPaletteInstanceUID'],\n '0400': ['LO', '1', 'TransformLabel'],\n '0401': ['LO', '1', 'TransformVersionNumber'],\n '0402': ['US', '1', 'NumberOfTransformSteps'],\n '0403': ['LO', '1-n', 'SequenceOfCompressedData'],\n '0404': ['AT', '1-n', 'DetailsOfCoefficients'],\n '04x0': ['US', '1', 'RowsForNthOrderCoefficients'],\n '04x1': ['US', '1', 'ColumnsForNthOrderCoefficients'],\n '04x2': ['LO', '1-n', 'CoefficientCoding'],\n '04x3': ['AT', '1-n', 'CoefficientCodingPointers'],\n '0700': ['LO', '1', 'DCTLabel'],\n '0701': ['CS', '1-n', 'DataBlockDescription'],\n '0702': ['AT', '1-n', 'DataBlock'],\n '0710': ['US', '1', 'NormalizationFactorFormat'],\n '0720': ['US', '1', 'ZonalMapNumberFormat'],\n '0721': ['AT', '1-n', 'ZonalMapLocation'],\n '0722': ['US', '1', 'ZonalMapFormat'],\n '0730': ['US', '1', 'AdaptiveMapFormat'],\n '0740': ['US', '1', 'CodeNumberFormat'],\n '08x0': ['CS', '1-n', 'CodeLabel'],\n '08x2': ['US', '1', 'NumberOfTables'],\n '08x3': ['AT', '1-n', 'CodeTableLocation'],\n '08x4': ['US', '1', 'BitsForCodeWord'],\n '08x8': ['AT', '1-n', 'ImageDataLocation'],\n '0A02': ['CS', '1', 'PixelSpacingCalibrationType'],\n '0A04': ['LO', '1', 'PixelSpacingCalibrationDescription'],\n '1040': ['CS', '1', 'PixelIntensityRelationship'],\n '1041': ['SS', '1', 'PixelIntensityRelationshipSign'],\n '1050': ['DS', '1-n', 'WindowCenter'],\n '1051': ['DS', '1-n', 'WindowWidth'],\n '1052': ['DS', '1', 'RescaleIntercept'],\n '1053': ['DS', '1', 'RescaleSlope'],\n '1054': ['LO', '1', 'RescaleType'],\n '1055': ['LO', '1-n', 'WindowCenterWidthExplanation'],\n '1056': ['CS', '1', 'VOILUTFunction'],\n '1080': ['CS', '1', 'GrayScale'],\n '1090': ['CS', '1', 'RecommendedViewingMode'],\n '1100': ['xs', '3', 'GrayLookupTableDescriptor'],\n '1101': ['xs', '3', 'RedPaletteColorLookupTableDescriptor'],\n '1102': ['xs', '3', 'GreenPaletteColorLookupTableDescriptor'],\n '1103': ['xs', '3', 'BluePaletteColorLookupTableDescriptor'],\n '1104': ['US', '3', 'AlphaPaletteColorLookupTableDescriptor'],\n '1111': ['xs', '4', 'LargeRedPaletteColorLookupTableDescriptor'],\n '1112': ['xs', '4', 'LargeGreenPaletteColorLookupTableDescriptor'],\n '1113': ['xs', '4', 'LargeBluePaletteColorLookupTableDescriptor'],\n '1199': ['UI', '1', 'PaletteColorLookupTableUID'],\n '1200': ['xs', '1-n or 1', 'GrayLookupTableData'],\n '1201': ['OW', '1', 'RedPaletteColorLookupTableData'],\n '1202': ['OW', '1', 'GreenPaletteColorLookupTableData'],\n '1203': ['OW', '1', 'BluePaletteColorLookupTableData'],\n '1204': ['OW', '1', 'AlphaPaletteColorLookupTableData'],\n '1211': ['OW', '1', 'LargeRedPaletteColorLookupTableData'],\n '1212': ['OW', '1', 'LargeGreenPaletteColorLookupTableData'],\n '1213': ['OW', '1', 'LargeBluePaletteColorLookupTableData'],\n '1214': ['UI', '1', 'LargePaletteColorLookupTableUID'],\n '1221': ['OW', '1', 'SegmentedRedPaletteColorLookupTableData'],\n '1222': ['OW', '1', 'SegmentedGreenPaletteColorLookupTableData'],\n '1223': ['OW', '1', 'SegmentedBluePaletteColorLookupTableData'],\n '1224': ['OW', '1', 'SegmentedAlphaPaletteColorLookupTableData'],\n '1230': ['SQ', '1', 'StoredValueColorRangeSequence'],\n '1231': ['FD', '1', 'MinimumStoredValueMapped'],\n '1232': ['FD', '1', 'MaximumStoredValueMapped'],\n '1300': ['CS', '1', 'BreastImplantPresent'],\n '1350': ['CS', '1', 'PartialView'],\n '1351': ['ST', '1', 'PartialViewDescription'],\n '1352': ['SQ', '1', 'PartialViewCodeSequence'],\n '135A': ['CS', '1', 'SpatialLocationsPreserved'],\n '1401': ['SQ', '1', 'DataFrameAssignmentSequence'],\n '1402': ['CS', '1', 'DataPathAssignment'],\n '1403': ['US', '1', 'BitsMappedToColorLookupTable'],\n '1404': ['SQ', '1', 'BlendingLUT1Sequence'],\n '1405': ['CS', '1', 'BlendingLUT1TransferFunction'],\n '1406': ['FD', '1', 'BlendingWeightConstant'],\n '1407': ['US', '3', 'BlendingLookupTableDescriptor'],\n '1408': ['OW', '1', 'BlendingLookupTableData'],\n '140B': ['SQ', '1', 'EnhancedPaletteColorLookupTableSequence'],\n '140C': ['SQ', '1', 'BlendingLUT2Sequence'],\n '140D': ['CS', '1', 'BlendingLUT2TransferFunction'],\n '140E': ['CS', '1', 'DataPathID'],\n '140F': ['CS', '1', 'RGBLUTTransferFunction'],\n '1410': ['CS', '1', 'AlphaLUTTransferFunction'],\n '2000': ['OB', '1', 'ICCProfile'],\n '2002': ['CS', '1', 'ColorSpace'],\n '2110': ['CS', '1', 'LossyImageCompression'],\n '2112': ['DS', '1-n', 'LossyImageCompressionRatio'],\n '2114': ['CS', '1-n', 'LossyImageCompressionMethod'],\n '3000': ['SQ', '1', 'ModalityLUTSequence'],\n '3002': ['xs', '3', 'LUTDescriptor'],\n '3003': ['LO', '1', 'LUTExplanation'],\n '3004': ['LO', '1', 'ModalityLUTType'],\n '3006': ['xx', '1-n or 1', 'LUTData'],\n '3010': ['SQ', '1', 'VOILUTSequence'],\n '3110': ['SQ', '1', 'SoftcopyVOILUTSequence'],\n '4000': ['LT', '1', 'ImagePresentationComments'],\n '5000': ['SQ', '1', 'BiPlaneAcquisitionSequence'],\n '6010': ['US', '1', 'RepresentativeFrameNumber'],\n '6020': ['US', '1-n', 'FrameNumbersOfInterest'],\n '6022': ['LO', '1-n', 'FrameOfInterestDescription'],\n '6023': ['CS', '1-n', 'FrameOfInterestType'],\n '6030': ['US', '1-n', 'MaskPointers'],\n '6040': ['US', '1-n', 'RWavePointer'],\n '6100': ['SQ', '1', 'MaskSubtractionSequence'],\n '6101': ['CS', '1', 'MaskOperation'],\n '6102': ['US', '2-2n', 'ApplicableFrameRange'],\n '6110': ['US', '1-n', 'MaskFrameNumbers'],\n '6112': ['US', '1', 'ContrastFrameAveraging'],\n '6114': ['FL', '2', 'MaskSubPixelShift'],\n '6120': ['SS', '1', 'TIDOffset'],\n '6190': ['ST', '1', 'MaskOperationExplanation'],\n '7000': ['SQ', '1', 'EquipmentAdministratorSequence'],\n '7001': ['US', '1', 'NumberOfDisplaySubsystems'],\n '7002': ['US', '1', 'CurrentConfigurationID'],\n '7003': ['US', '1', 'DisplaySubsystemID'],\n '7004': ['SH', '1', 'DisplaySubsystemName'],\n '7005': ['LO', '1', 'DisplaySubsystemDescription'],\n '7006': ['CS', '1', 'SystemStatus'],\n '7007': ['LO', '1', 'SystemStatusComment'],\n '7008': ['SQ', '1', 'TargetLuminanceCharacteristicsSequence'],\n '7009': ['US', '1', 'LuminanceCharacteristicsID'],\n '700A': ['SQ', '1', 'DisplaySubsystemConfigurationSequence'],\n '700B': ['US', '1', 'ConfigurationID'],\n '700C': ['SH', '1', 'ConfigurationName'],\n '700D': ['LO', '1', 'ConfigurationDescription'],\n '700E': ['US', '1', 'ReferencedTargetLuminanceCharacteristicsID'],\n '700F': ['SQ', '1', 'QAResultsSequence'],\n '7010': ['SQ', '1', 'DisplaySubsystemQAResultsSequence'],\n '7011': ['SQ', '1', 'ConfigurationQAResultsSequence'],\n '7012': ['SQ', '1', 'MeasurementEquipmentSequence'],\n '7013': ['CS', '1-n', 'MeasurementFunctions'],\n '7014': ['CS', '1', 'MeasurementEquipmentType'],\n '7015': ['SQ', '1', 'VisualEvaluationResultSequence'],\n '7016': ['SQ', '1', 'DisplayCalibrationResultSequence'],\n '7017': ['US', '1', 'DDLValue'],\n '7018': ['FL', '2', 'CIExyWhitePoint'],\n '7019': ['CS', '1', 'DisplayFunctionType'],\n '701A': ['FL', '1', 'GammaValue'],\n '701B': ['US', '1', 'NumberOfLuminancePoints'],\n '701C': ['SQ', '1', 'LuminanceResponseSequence'],\n '701D': ['FL', '1', 'TargetMinimumLuminance'],\n '701E': ['FL', '1', 'TargetMaximumLuminance'],\n '701F': ['FL', '1', 'LuminanceValue'],\n '7020': ['LO', '1', 'LuminanceResponseDescription'],\n '7021': ['CS', '1', 'WhitePointFlag'],\n '7022': ['SQ', '1', 'DisplayDeviceTypeCodeSequence'],\n '7023': ['SQ', '1', 'DisplaySubsystemSequence'],\n '7024': ['SQ', '1', 'LuminanceResultSequence'],\n '7025': ['CS', '1', 'AmbientLightValueSource'],\n '7026': ['CS', '1-n', 'MeasuredCharacteristics'],\n '7027': ['SQ', '1', 'LuminanceUniformityResultSequence'],\n '7028': ['SQ', '1', 'VisualEvaluationTestSequence'],\n '7029': ['CS', '1', 'TestResult'],\n '702A': ['LO', '1', 'TestResultComment'],\n '702B': ['CS', '1', 'TestImageValidation'],\n '702C': ['SQ', '1', 'TestPatternCodeSequence'],\n '702D': ['SQ', '1', 'MeasurementPatternCodeSequence'],\n '702E': ['SQ', '1', 'VisualEvaluationMethodCodeSequence'],\n '7FE0': ['UR', '1', 'PixelDataProviderURL'],\n '9001': ['UL', '1', 'DataPointRows'],\n '9002': ['UL', '1', 'DataPointColumns'],\n '9003': ['CS', '1', 'SignalDomainColumns'],\n '9099': ['US', '1', 'LargestMonochromePixelValue'],\n '9108': ['CS', '1', 'DataRepresentation'],\n '9110': ['SQ', '1', 'PixelMeasuresSequence'],\n '9132': ['SQ', '1', 'FrameVOILUTSequence'],\n '9145': ['SQ', '1', 'PixelValueTransformationSequence'],\n '9235': ['CS', '1', 'SignalDomainRows'],\n '9411': ['FL', '1', 'DisplayFilterPercentage'],\n '9415': ['SQ', '1', 'FramePixelShiftSequence'],\n '9416': ['US', '1', 'SubtractionItemID'],\n '9422': ['SQ', '1', 'PixelIntensityRelationshipLUTSequence'],\n '9443': ['SQ', '1', 'FramePixelDataPropertiesSequence'],\n '9444': ['CS', '1', 'GeometricalProperties'],\n '9445': ['FL', '1', 'GeometricMaximumDistortion'],\n '9446': ['CS', '1-n', 'ImageProcessingApplied'],\n '9454': ['CS', '1', 'MaskSelectionMode'],\n '9474': ['CS', '1', 'LUTFunction'],\n '9478': ['FL', '1', 'MaskVisibilityPercentage'],\n '9501': ['SQ', '1', 'PixelShiftSequence'],\n '9502': ['SQ', '1', 'RegionPixelShiftSequence'],\n '9503': ['SS', '2-2n', 'VerticesOfTheRegion'],\n '9505': ['SQ', '1', 'MultiFramePresentationSequence'],\n '9506': ['US', '2-2n', 'PixelShiftFrameRange'],\n '9507': ['US', '2-2n', 'LUTFrameRange'],\n '9520': ['DS', '16', 'ImageToEquipmentMappingMatrix'],\n '9537': ['CS', '1', 'EquipmentCoordinateSystemIdentification']\n },\n '0032': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '000A': ['CS', '1', 'StudyStatusID'],\n '000C': ['CS', '1', 'StudyPriorityID'],\n '0012': ['LO', '1', 'StudyIDIssuer'],\n '0032': ['DA', '1', 'StudyVerifiedDate'],\n '0033': ['TM', '1', 'StudyVerifiedTime'],\n '0034': ['DA', '1', 'StudyReadDate'],\n '0035': ['TM', '1', 'StudyReadTime'],\n '1000': ['DA', '1', 'ScheduledStudyStartDate'],\n '1001': ['TM', '1', 'ScheduledStudyStartTime'],\n '1010': ['DA', '1', 'ScheduledStudyStopDate'],\n '1011': ['TM', '1', 'ScheduledStudyStopTime'],\n '1020': ['LO', '1', 'ScheduledStudyLocation'],\n '1021': ['AE', '1-n', 'ScheduledStudyLocationAETitle'],\n '1030': ['LO', '1', 'ReasonForStudy'],\n '1031': ['SQ', '1', 'RequestingPhysicianIdentificationSequence'],\n '1032': ['PN', '1', 'RequestingPhysician'],\n '1033': ['LO', '1', 'RequestingService'],\n '1034': ['SQ', '1', 'RequestingServiceCodeSequence'],\n '1040': ['DA', '1', 'StudyArrivalDate'],\n '1041': ['TM', '1', 'StudyArrivalTime'],\n '1050': ['DA', '1', 'StudyCompletionDate'],\n '1051': ['TM', '1', 'StudyCompletionTime'],\n '1055': ['CS', '1', 'StudyComponentStatusID'],\n '1060': ['LO', '1', 'RequestedProcedureDescription'],\n '1064': ['SQ', '1', 'RequestedProcedureCodeSequence'],\n '1065': ['SQ', '1', 'RequestedLateralityCodeSequence'],\n '1066': ['UT', '1', 'ReasonForVisit'],\n '1067': ['SQ', '1', 'ReasonForVisitCodeSequence'],\n '1070': ['LO', '1', 'RequestedContrastAgent'],\n '4000': ['LT', '1', 'StudyComments']\n },\n '0034': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'FlowIdentifierSequence'],\n '0002': ['OB', '1', 'FlowIdentifier'],\n '0003': ['UI', '1', 'FlowTransferSyntaxUID'],\n '0004': ['UL', '1', 'FlowRTPSamplingRate'],\n '0005': ['OB', '1', 'SourceIdentifier'],\n '0007': ['OB', '1', 'FrameOriginTimestamp'],\n '0008': ['CS', '1', 'IncludesImagingSubject'],\n '0009': ['SQ', '1', 'FrameUsefulnessGroupSequence'],\n '000A': ['SQ', '1', 'RealTimeBulkDataFlowSequence'],\n '000B': ['SQ', '1', 'CameraPositionGroupSequence'],\n '000C': ['CS', '1', 'IncludesInformation'],\n '000D': ['SQ', '1', 'TimeOfFrameGroupSequence']\n },\n '0038': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['SQ', '1', 'ReferencedPatientAliasSequence'],\n '0008': ['CS', '1', 'VisitStatusID'],\n '0010': ['LO', '1', 'AdmissionID'],\n '0011': ['LO', '1', 'IssuerOfAdmissionID'],\n '0014': ['SQ', '1', 'IssuerOfAdmissionIDSequence'],\n '0016': ['LO', '1', 'RouteOfAdmissions'],\n '001A': ['DA', '1', 'ScheduledAdmissionDate'],\n '001B': ['TM', '1', 'ScheduledAdmissionTime'],\n '001C': ['DA', '1', 'ScheduledDischargeDate'],\n '001D': ['TM', '1', 'ScheduledDischargeTime'],\n '001E': ['LO', '1', 'ScheduledPatientInstitutionResidence'],\n '0020': ['DA', '1', 'AdmittingDate'],\n '0021': ['TM', '1', 'AdmittingTime'],\n '0030': ['DA', '1', 'DischargeDate'],\n '0032': ['TM', '1', 'DischargeTime'],\n '0040': ['LO', '1', 'DischargeDiagnosisDescription'],\n '0044': ['SQ', '1', 'DischargeDiagnosisCodeSequence'],\n '0050': ['LO', '1', 'SpecialNeeds'],\n '0060': ['LO', '1', 'ServiceEpisodeID'],\n '0061': ['LO', '1', 'IssuerOfServiceEpisodeID'],\n '0062': ['LO', '1', 'ServiceEpisodeDescription'],\n '0064': ['SQ', '1', 'IssuerOfServiceEpisodeIDSequence'],\n '0100': ['SQ', '1', 'PertinentDocumentsSequence'],\n '0101': ['SQ', '1', 'PertinentResourcesSequence'],\n '0102': ['LO', '1', 'ResourceDescription'],\n '0300': ['LO', '1', 'CurrentPatientLocation'],\n '0400': ['LO', '1', 'PatientInstitutionResidence'],\n '0500': ['LO', '1', 'PatientState'],\n '0502': ['SQ', '1', 'PatientClinicalTrialParticipationSequence'],\n '4000': ['LT', '1', 'VisitComments']\n },\n '003A': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['CS', '1', 'WaveformOriginality'],\n '0005': ['US', '1', 'NumberOfWaveformChannels'],\n '0010': ['UL', '1', 'NumberOfWaveformSamples'],\n '001A': ['DS', '1', 'SamplingFrequency'],\n '0020': ['SH', '1', 'MultiplexGroupLabel'],\n '0200': ['SQ', '1', 'ChannelDefinitionSequence'],\n '0202': ['IS', '1', 'WaveformChannelNumber'],\n '0203': ['SH', '1', 'ChannelLabel'],\n '0205': ['CS', '1-n', 'ChannelStatus'],\n '0208': ['SQ', '1', 'ChannelSourceSequence'],\n '0209': ['SQ', '1', 'ChannelSourceModifiersSequence'],\n '020A': ['SQ', '1', 'SourceWaveformSequence'],\n '020C': ['LO', '1', 'ChannelDerivationDescription'],\n '0210': ['DS', '1', 'ChannelSensitivity'],\n '0211': ['SQ', '1', 'ChannelSensitivityUnitsSequence'],\n '0212': ['DS', '1', 'ChannelSensitivityCorrectionFactor'],\n '0213': ['DS', '1', 'ChannelBaseline'],\n '0214': ['DS', '1', 'ChannelTimeSkew'],\n '0215': ['DS', '1', 'ChannelSampleSkew'],\n '0218': ['DS', '1', 'ChannelOffset'],\n '021A': ['US', '1', 'WaveformBitsStored'],\n '0220': ['DS', '1', 'FilterLowFrequency'],\n '0221': ['DS', '1', 'FilterHighFrequency'],\n '0222': ['DS', '1', 'NotchFilterFrequency'],\n '0223': ['DS', '1', 'NotchFilterBandwidth'],\n '0230': ['FL', '1', 'WaveformDataDisplayScale'],\n '0231': ['US', '3', 'WaveformDisplayBackgroundCIELabValue'],\n '0240': ['SQ', '1', 'WaveformPresentationGroupSequence'],\n '0241': ['US', '1', 'PresentationGroupNumber'],\n '0242': ['SQ', '1', 'ChannelDisplaySequence'],\n '0244': ['US', '3', 'ChannelRecommendedDisplayCIELabValue'],\n '0245': ['FL', '1', 'ChannelPosition'],\n '0246': ['CS', '1', 'DisplayShadingFlag'],\n '0247': ['FL', '1', 'FractionalChannelDisplayScale'],\n '0248': ['FL', '1', 'AbsoluteChannelDisplayScale'],\n '0300': ['SQ', '1', 'MultiplexedAudioChannelsDescriptionCodeSequence'],\n '0301': ['IS', '1', 'ChannelIdentificationCode'],\n '0302': ['CS', '1', 'ChannelMode'],\n '0310': ['UI', '1', 'MultiplexGroupUID'],\n '0311': ['DS', '1', 'PowerlineFrequency'],\n '0312': ['SQ', '1', 'ChannelImpedanceSequence'],\n '0313': ['DS', '1', 'ImpedanceValue'],\n '0314': ['DT', '1', 'ImpedanceMeasurementDateTime'],\n '0315': ['DS', '1', 'ImpedanceMeasurementFrequency'],\n '0316': ['CS', '1', 'ImpedanceMeasurementCurrentType']\n },\n '0040': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['AE', '1-n', 'ScheduledStationAETitle'],\n '0002': ['DA', '1', 'ScheduledProcedureStepStartDate'],\n '0003': ['TM', '1', 'ScheduledProcedureStepStartTime'],\n '0004': ['DA', '1', 'ScheduledProcedureStepEndDate'],\n '0005': ['TM', '1', 'ScheduledProcedureStepEndTime'],\n '0006': ['PN', '1', 'ScheduledPerformingPhysicianName'],\n '0007': ['LO', '1', 'ScheduledProcedureStepDescription'],\n '0008': ['SQ', '1', 'ScheduledProtocolCodeSequence'],\n '0009': ['SH', '1', 'ScheduledProcedureStepID'],\n '000A': ['SQ', '1', 'StageCodeSequence'],\n '000B': ['SQ', '1', 'ScheduledPerformingPhysicianIdentificationSequence'],\n '0010': ['SH', '1-n', 'ScheduledStationName'],\n '0011': ['SH', '1', 'ScheduledProcedureStepLocation'],\n '0012': ['LO', '1', 'PreMedication'],\n '0020': ['CS', '1', 'ScheduledProcedureStepStatus'],\n '0026': ['SQ', '1', 'OrderPlacerIdentifierSequence'],\n '0027': ['SQ', '1', 'OrderFillerIdentifierSequence'],\n '0031': ['UT', '1', 'LocalNamespaceEntityID'],\n '0032': ['UT', '1', 'UniversalEntityID'],\n '0033': ['CS', '1', 'UniversalEntityIDType'],\n '0035': ['CS', '1', 'IdentifierTypeCode'],\n '0036': ['SQ', '1', 'AssigningFacilitySequence'],\n '0039': ['SQ', '1', 'AssigningJurisdictionCodeSequence'],\n '003A': ['SQ', '1', 'AssigningAgencyOrDepartmentCodeSequence'],\n '0100': ['SQ', '1', 'ScheduledProcedureStepSequence'],\n '0220': ['SQ', '1', 'ReferencedNonImageCompositeSOPInstanceSequence'],\n '0241': ['AE', '1', 'PerformedStationAETitle'],\n '0242': ['SH', '1', 'PerformedStationName'],\n '0243': ['SH', '1', 'PerformedLocation'],\n '0244': ['DA', '1', 'PerformedProcedureStepStartDate'],\n '0245': ['TM', '1', 'PerformedProcedureStepStartTime'],\n '0250': ['DA', '1', 'PerformedProcedureStepEndDate'],\n '0251': ['TM', '1', 'PerformedProcedureStepEndTime'],\n '0252': ['CS', '1', 'PerformedProcedureStepStatus'],\n '0253': ['SH', '1', 'PerformedProcedureStepID'],\n '0254': ['LO', '1', 'PerformedProcedureStepDescription'],\n '0255': ['LO', '1', 'PerformedProcedureTypeDescription'],\n '0260': ['SQ', '1', 'PerformedProtocolCodeSequence'],\n '0261': ['CS', '1', 'PerformedProtocolType'],\n '0270': ['SQ', '1', 'ScheduledStepAttributesSequence'],\n '0275': ['SQ', '1', 'RequestAttributesSequence'],\n '0280': ['ST', '1', 'CommentsOnThePerformedProcedureStep'],\n '0281': ['SQ', '1', 'PerformedProcedureStepDiscontinuationReasonCodeSequence'],\n '0293': ['SQ', '1', 'QuantitySequence'],\n '0294': ['DS', '1', 'Quantity'],\n '0295': ['SQ', '1', 'MeasuringUnitsSequence'],\n '0296': ['SQ', '1', 'BillingItemSequence'],\n '0300': ['US', '1', 'TotalTimeOfFluoroscopy'],\n '0301': ['US', '1', 'TotalNumberOfExposures'],\n '0302': ['US', '1', 'EntranceDose'],\n '0303': ['US', '1-2', 'ExposedArea'],\n '0306': ['DS', '1', 'DistanceSourceToEntrance'],\n '0307': ['DS', '1', 'DistanceSourceToSupport'],\n '030E': ['SQ', '1', 'ExposureDoseSequence'],\n '0310': ['ST', '1', 'CommentsOnRadiationDose'],\n '0312': ['DS', '1', 'XRayOutput'],\n '0314': ['DS', '1', 'HalfValueLayer'],\n '0316': ['DS', '1', 'OrganDose'],\n '0318': ['CS', '1', 'OrganExposed'],\n '0320': ['SQ', '1', 'BillingProcedureStepSequence'],\n '0321': ['SQ', '1', 'FilmConsumptionSequence'],\n '0324': ['SQ', '1', 'BillingSuppliesAndDevicesSequence'],\n '0330': ['SQ', '1', 'ReferencedProcedureStepSequence'],\n '0340': ['SQ', '1', 'PerformedSeriesSequence'],\n '0400': ['LT', '1', 'CommentsOnTheScheduledProcedureStep'],\n '0440': ['SQ', '1', 'ProtocolContextSequence'],\n '0441': ['SQ', '1', 'ContentItemModifierSequence'],\n '0500': ['SQ', '1', 'ScheduledSpecimenSequence'],\n '050A': ['LO', '1', 'SpecimenAccessionNumber'],\n '0512': ['LO', '1', 'ContainerIdentifier'],\n '0513': ['SQ', '1', 'IssuerOfTheContainerIdentifierSequence'],\n '0515': ['SQ', '1', 'AlternateContainerIdentifierSequence'],\n '0518': ['SQ', '1', 'ContainerTypeCodeSequence'],\n '051A': ['LO', '1', 'ContainerDescription'],\n '0520': ['SQ', '1', 'ContainerComponentSequence'],\n '0550': ['SQ', '1', 'SpecimenSequence'],\n '0551': ['LO', '1', 'SpecimenIdentifier'],\n '0552': ['SQ', '1', 'SpecimenDescriptionSequenceTrial'],\n '0553': ['ST', '1', 'SpecimenDescriptionTrial'],\n '0554': ['UI', '1', 'SpecimenUID'],\n '0555': ['SQ', '1', 'AcquisitionContextSequence'],\n '0556': ['ST', '1', 'AcquisitionContextDescription'],\n '0560': ['SQ', '1', 'SpecimenDescriptionSequence'],\n '0562': ['SQ', '1', 'IssuerOfTheSpecimenIdentifierSequence'],\n '059A': ['SQ', '1', 'SpecimenTypeCodeSequence'],\n '0600': ['LO', '1', 'SpecimenShortDescription'],\n '0602': ['UT', '1', 'SpecimenDetailedDescription'],\n '0610': ['SQ', '1', 'SpecimenPreparationSequence'],\n '0612': ['SQ', '1', 'SpecimenPreparationStepContentItemSequence'],\n '0620': ['SQ', '1', 'SpecimenLocalizationContentItemSequence'],\n '06FA': ['LO', '1', 'SlideIdentifier'],\n '0710': ['SQ', '1', 'WholeSlideMicroscopyImageFrameTypeSequence'],\n '071A': ['SQ', '1', 'ImageCenterPointCoordinatesSequence'],\n '072A': ['DS', '1', 'XOffsetInSlideCoordinateSystem'],\n '073A': ['DS', '1', 'YOffsetInSlideCoordinateSystem'],\n '074A': ['DS', '1', 'ZOffsetInSlideCoordinateSystem'],\n '08D8': ['SQ', '1', 'PixelSpacingSequence'],\n '08DA': ['SQ', '1', 'CoordinateSystemAxisCodeSequence'],\n '08EA': ['SQ', '1', 'MeasurementUnitsCodeSequence'],\n '09F8': ['SQ', '1', 'VitalStainCodeSequenceTrial'],\n '1001': ['SH', '1', 'RequestedProcedureID'],\n '1002': ['LO', '1', 'ReasonForTheRequestedProcedure'],\n '1003': ['SH', '1', 'RequestedProcedurePriority'],\n '1004': ['LO', '1', 'PatientTransportArrangements'],\n '1005': ['LO', '1', 'RequestedProcedureLocation'],\n '1006': ['SH', '1', 'PlacerOrderNumberProcedure'],\n '1007': ['SH', '1', 'FillerOrderNumberProcedure'],\n '1008': ['LO', '1', 'ConfidentialityCode'],\n '1009': ['SH', '1', 'ReportingPriority'],\n '100A': ['SQ', '1', 'ReasonForRequestedProcedureCodeSequence'],\n '1010': ['PN', '1-n', 'NamesOfIntendedRecipientsOfResults'],\n '1011': ['SQ', '1', 'IntendedRecipientsOfResultsIdentificationSequence'],\n '1012': ['SQ', '1', 'ReasonForPerformedProcedureCodeSequence'],\n '1060': ['LO', '1', 'RequestedProcedureDescriptionTrial'],\n '1101': ['SQ', '1', 'PersonIdentificationCodeSequence'],\n '1102': ['ST', '1', 'PersonAddress'],\n '1103': ['LO', '1-n', 'PersonTelephoneNumbers'],\n '1104': ['LT', '1', 'PersonTelecomInformation'],\n '1400': ['LT', '1', 'RequestedProcedureComments'],\n '2001': ['LO', '1', 'ReasonForTheImagingServiceRequest'],\n '2004': ['DA', '1', 'IssueDateOfImagingServiceRequest'],\n '2005': ['TM', '1', 'IssueTimeOfImagingServiceRequest'],\n '2006': ['SH', '1', 'PlacerOrderNumberImagingServiceRequestRetired'],\n '2007': ['SH', '1', 'FillerOrderNumberImagingServiceRequestRetired'],\n '2008': ['PN', '1', 'OrderEnteredBy'],\n '2009': ['SH', '1', 'OrderEntererLocation'],\n '2010': ['SH', '1', 'OrderCallbackPhoneNumber'],\n '2011': ['LT', '1', 'OrderCallbackTelecomInformation'],\n '2016': ['LO', '1', 'PlacerOrderNumberImagingServiceRequest'],\n '2017': ['LO', '1', 'FillerOrderNumberImagingServiceRequest'],\n '2400': ['LT', '1', 'ImagingServiceRequestComments'],\n '3001': ['LO', '1', 'ConfidentialityConstraintOnPatientDataDescription'],\n '4001': ['CS', '1', 'GeneralPurposeScheduledProcedureStepStatus'],\n '4002': ['CS', '1', 'GeneralPurposePerformedProcedureStepStatus'],\n '4003': ['CS', '1', 'GeneralPurposeScheduledProcedureStepPriority'],\n '4004': ['SQ', '1', 'ScheduledProcessingApplicationsCodeSequence'],\n '4005': ['DT', '1', 'ScheduledProcedureStepStartDateTime'],\n '4006': ['CS', '1', 'MultipleCopiesFlag'],\n '4007': ['SQ', '1', 'PerformedProcessingApplicationsCodeSequence'],\n '4008': ['DT', '1', 'ScheduledProcedureStepExpirationDateTime'],\n '4009': ['SQ', '1', 'HumanPerformerCodeSequence'],\n '4010': ['DT', '1', 'ScheduledProcedureStepModificationDateTime'],\n '4011': ['DT', '1', 'ExpectedCompletionDateTime'],\n '4015': ['SQ', '1', 'ResultingGeneralPurposePerformedProcedureStepsSequence'],\n '4016': ['SQ', '1', 'ReferencedGeneralPurposeScheduledProcedureStepSequence'],\n '4018': ['SQ', '1', 'ScheduledWorkitemCodeSequence'],\n '4019': ['SQ', '1', 'PerformedWorkitemCodeSequence'],\n '4020': ['CS', '1', 'InputAvailabilityFlag'],\n '4021': ['SQ', '1', 'InputInformationSequence'],\n '4022': ['SQ', '1', 'RelevantInformationSequence'],\n '4023': ['UI', '1', 'ReferencedGeneralPurposeScheduledProcedureStepTransactionUID'],\n '4025': ['SQ', '1', 'ScheduledStationNameCodeSequence'],\n '4026': ['SQ', '1', 'ScheduledStationClassCodeSequence'],\n '4027': ['SQ', '1', 'ScheduledStationGeographicLocationCodeSequence'],\n '4028': ['SQ', '1', 'PerformedStationNameCodeSequence'],\n '4029': ['SQ', '1', 'PerformedStationClassCodeSequence'],\n '4030': ['SQ', '1', 'PerformedStationGeographicLocationCodeSequence'],\n '4031': ['SQ', '1', 'RequestedSubsequentWorkitemCodeSequence'],\n '4032': ['SQ', '1', 'NonDICOMOutputCodeSequence'],\n '4033': ['SQ', '1', 'OutputInformationSequence'],\n '4034': ['SQ', '1', 'ScheduledHumanPerformersSequence'],\n '4035': ['SQ', '1', 'ActualHumanPerformersSequence'],\n '4036': ['LO', '1', 'HumanPerformerOrganization'],\n '4037': ['PN', '1', 'HumanPerformerName'],\n '4040': ['CS', '1', 'RawDataHandling'],\n '4041': ['CS', '1', 'InputReadinessState'],\n '4050': ['DT', '1', 'PerformedProcedureStepStartDateTime'],\n '4051': ['DT', '1', 'PerformedProcedureStepEndDateTime'],\n '4052': ['DT', '1', 'ProcedureStepCancellationDateTime'],\n '4070': ['SQ', '1', 'OutputDestinationSequence'],\n '4071': ['SQ', '1', 'DICOMStorageSequence'],\n '4072': ['SQ', '1', 'STOWRSStorageSequence'],\n '4073': ['UR', '1', 'StorageURL'],\n '4074': ['SQ', '1', 'XDSStorageSequence'],\n '8302': ['DS', '1', 'EntranceDoseInmGy'],\n '8303': ['CS', '1', 'EntranceDoseDerivation'],\n '9092': ['SQ', '1', 'ParametricMapFrameTypeSequence'],\n '9094': ['SQ', '1', 'ReferencedImageRealWorldValueMappingSequence'],\n '9096': ['SQ', '1', 'RealWorldValueMappingSequence'],\n '9098': ['SQ', '1', 'PixelValueMappingCodeSequence'],\n '9210': ['SH', '1', 'LUTLabel'],\n '9211': ['xs', '1', 'RealWorldValueLastValueMapped'],\n '9212': ['FD', '1-n', 'RealWorldValueLUTData'],\n '9213': ['FD', '1', 'DoubleFloatRealWorldValueLastValueMapped'],\n '9214': ['FD', '1', 'DoubleFloatRealWorldValueFirstValueMapped'],\n '9216': ['xs', '1', 'RealWorldValueFirstValueMapped'],\n '9220': ['SQ', '1', 'QuantityDefinitionSequence'],\n '9224': ['FD', '1', 'RealWorldValueIntercept'],\n '9225': ['FD', '1', 'RealWorldValueSlope'],\n 'A007': ['CS', '1', 'FindingsFlagTrial'],\n 'A010': ['CS', '1', 'RelationshipType'],\n 'A020': ['SQ', '1', 'FindingsSequenceTrial'],\n 'A021': ['UI', '1', 'FindingsGroupUIDTrial'],\n 'A022': ['UI', '1', 'ReferencedFindingsGroupUIDTrial'],\n 'A023': ['DA', '1', 'FindingsGroupRecordingDateTrial'],\n 'A024': ['TM', '1', 'FindingsGroupRecordingTimeTrial'],\n 'A026': ['SQ', '1', 'FindingsSourceCategoryCodeSequenceTrial'],\n 'A027': ['LO', '1', 'VerifyingOrganization'],\n 'A028': ['SQ', '1', 'DocumentingOrganizationIdentifierCodeSequenceTrial'],\n 'A030': ['DT', '1', 'VerificationDateTime'],\n 'A032': ['DT', '1', 'ObservationDateTime'],\n 'A033': ['DT', '1', 'ObservationStartDateTime'],\n 'A040': ['CS', '1', 'ValueType'],\n 'A043': ['SQ', '1', 'ConceptNameCodeSequence'],\n 'A047': ['LO', '1', 'MeasurementPrecisionDescriptionTrial'],\n 'A050': ['CS', '1', 'ContinuityOfContent'],\n 'A057': ['CS', '1-n', 'UrgencyOrPriorityAlertsTrial'],\n 'A060': ['LO', '1', 'SequencingIndicatorTrial'],\n 'A066': ['SQ', '1', 'DocumentIdentifierCodeSequenceTrial'],\n 'A067': ['PN', '1', 'DocumentAuthorTrial'],\n 'A068': ['SQ', '1', 'DocumentAuthorIdentifierCodeSequenceTrial'],\n 'A070': ['SQ', '1', 'IdentifierCodeSequenceTrial'],\n 'A073': ['SQ', '1', 'VerifyingObserverSequence'],\n 'A074': ['OB', '1', 'ObjectBinaryIdentifierTrial'],\n 'A075': ['PN', '1', 'VerifyingObserverName'],\n 'A076': ['SQ', '1', 'DocumentingObserverIdentifierCodeSequenceTrial'],\n 'A078': ['SQ', '1', 'AuthorObserverSequence'],\n 'A07A': ['SQ', '1', 'ParticipantSequence'],\n 'A07C': ['SQ', '1', 'CustodialOrganizationSequence'],\n 'A080': ['CS', '1', 'ParticipationType'],\n 'A082': ['DT', '1', 'ParticipationDateTime'],\n 'A084': ['CS', '1', 'ObserverType'],\n 'A085': ['SQ', '1', 'ProcedureIdentifierCodeSequenceTrial'],\n 'A088': ['SQ', '1', 'VerifyingObserverIdentificationCodeSequence'],\n 'A089': ['OB', '1', 'ObjectDirectoryBinaryIdentifierTrial'],\n 'A090': ['SQ', '1', 'EquivalentCDADocumentSequence'],\n 'A0B0': ['US', '2-2n', 'ReferencedWaveformChannels'],\n 'A110': ['DA', '1', 'DateOfDocumentOrVerbalTransactionTrial'],\n 'A112': ['TM', '1', 'TimeOfDocumentCreationOrVerbalTransactionTrial'],\n 'A120': ['DT', '1', 'DateTime'],\n 'A121': ['DA', '1', 'Date'],\n 'A122': ['TM', '1', 'Time'],\n 'A123': ['PN', '1', 'PersonName'],\n 'A124': ['UI', '1', 'UID'],\n 'A125': ['CS', '2', 'ReportStatusIDTrial'],\n 'A130': ['CS', '1', 'TemporalRangeType'],\n 'A132': ['UL', '1-n', 'ReferencedSamplePositions'],\n 'A136': ['US', '1-n', 'ReferencedFrameNumbers'],\n 'A138': ['DS', '1-n', 'ReferencedTimeOffsets'],\n 'A13A': ['DT', '1-n', 'ReferencedDateTime'],\n 'A160': ['UT', '1', 'TextValue'],\n 'A161': ['FD', '1-n', 'FloatingPointValue'],\n 'A162': ['SL', '1-n', 'RationalNumeratorValue'],\n 'A163': ['UL', '1-n', 'RationalDenominatorValue'],\n 'A167': ['SQ', '1', 'ObservationCategoryCodeSequenceTrial'],\n 'A168': ['SQ', '1', 'ConceptCodeSequence'],\n 'A16A': ['ST', '1', 'BibliographicCitationTrial'],\n 'A170': ['SQ', '1', 'PurposeOfReferenceCodeSequence'],\n 'A171': ['UI', '1', 'ObservationUID'],\n 'A172': ['UI', '1', 'ReferencedObservationUIDTrial'],\n 'A173': ['CS', '1', 'ReferencedObservationClassTrial'],\n 'A174': ['CS', '1', 'ReferencedObjectObservationClassTrial'],\n 'A180': ['US', '1', 'AnnotationGroupNumber'],\n 'A192': ['DA', '1', 'ObservationDateTrial'],\n 'A193': ['TM', '1', 'ObservationTimeTrial'],\n 'A194': ['CS', '1', 'MeasurementAutomationTrial'],\n 'A195': ['SQ', '1', 'ModifierCodeSequence'],\n 'A224': ['ST', '1', 'IdentificationDescriptionTrial'],\n 'A290': ['CS', '1', 'CoordinatesSetGeometricTypeTrial'],\n 'A296': ['SQ', '1', 'AlgorithmCodeSequenceTrial'],\n 'A297': ['ST', '1', 'AlgorithmDescriptionTrial'],\n 'A29A': ['SL', '2-2n', 'PixelCoordinatesSetTrial'],\n 'A300': ['SQ', '1', 'MeasuredValueSequence'],\n 'A301': ['SQ', '1', 'NumericValueQualifierCodeSequence'],\n 'A307': ['PN', '1', 'CurrentObserverTrial'],\n 'A30A': ['DS', '1-n', 'NumericValue'],\n 'A313': ['SQ', '1', 'ReferencedAccessionSequenceTrial'],\n 'A33A': ['ST', '1', 'ReportStatusCommentTrial'],\n 'A340': ['SQ', '1', 'ProcedureContextSequenceTrial'],\n 'A352': ['PN', '1', 'VerbalSourceTrial'],\n 'A353': ['ST', '1', 'AddressTrial'],\n 'A354': ['LO', '1', 'TelephoneNumberTrial'],\n 'A358': ['SQ', '1', 'VerbalSourceIdentifierCodeSequenceTrial'],\n 'A360': ['SQ', '1', 'PredecessorDocumentsSequence'],\n 'A370': ['SQ', '1', 'ReferencedRequestSequence'],\n 'A372': ['SQ', '1', 'PerformedProcedureCodeSequence'],\n 'A375': ['SQ', '1', 'CurrentRequestedProcedureEvidenceSequence'],\n 'A380': ['SQ', '1', 'ReportDetailSequenceTrial'],\n 'A385': ['SQ', '1', 'PertinentOtherEvidenceSequence'],\n 'A390': ['SQ', '1', 'HL7StructuredDocumentReferenceSequence'],\n 'A402': ['UI', '1', 'ObservationSubjectUIDTrial'],\n 'A403': ['CS', '1', 'ObservationSubjectClassTrial'],\n 'A404': ['SQ', '1', 'ObservationSubjectTypeCodeSequenceTrial'],\n 'A491': ['CS', '1', 'CompletionFlag'],\n 'A492': ['LO', '1', 'CompletionFlagDescription'],\n 'A493': ['CS', '1', 'VerificationFlag'],\n 'A494': ['CS', '1', 'ArchiveRequested'],\n 'A496': ['CS', '1', 'PreliminaryFlag'],\n 'A504': ['SQ', '1', 'ContentTemplateSequence'],\n 'A525': ['SQ', '1', 'IdenticalDocumentsSequence'],\n 'A600': ['CS', '1', 'ObservationSubjectContextFlagTrial'],\n 'A601': ['CS', '1', 'ObserverContextFlagTrial'],\n 'A603': ['CS', '1', 'ProcedureContextFlagTrial'],\n 'A730': ['SQ', '1', 'ContentSequence'],\n 'A731': ['SQ', '1', 'RelationshipSequenceTrial'],\n 'A732': ['SQ', '1', 'RelationshipTypeCodeSequenceTrial'],\n 'A744': ['SQ', '1', 'LanguageCodeSequenceTrial'],\n 'A801': ['SQ', '1', 'TabulatedValuesSequence'],\n 'A802': ['UL', '1', 'NumberOfTableRows'],\n 'A803': ['UL', '1', 'NumberOfTableColumns'],\n 'A804': ['UL', '1', 'TableRowNumber'],\n 'A805': ['UL', '1', 'TableColumnNumber'],\n 'A806': ['SQ', '1', 'TableRowDefinitionSequence'],\n 'A807': ['SQ', '1', 'TableColumnDefinitionSequence'],\n 'A808': ['SQ', '1', 'CellValuesSequence'],\n 'A992': ['ST', '1', 'UniformResourceLocatorTrial'],\n 'B020': ['SQ', '1', 'WaveformAnnotationSequence'],\n 'DB00': ['CS', '1', 'TemplateIdentifier'],\n 'DB06': ['DT', '1', 'TemplateVersion'],\n 'DB07': ['DT', '1', 'TemplateLocalVersion'],\n 'DB0B': ['CS', '1', 'TemplateExtensionFlag'],\n 'DB0C': ['UI', '1', 'TemplateExtensionOrganizationUID'],\n 'DB0D': ['UI', '1', 'TemplateExtensionCreatorUID'],\n 'DB73': ['UL', '1-n', 'ReferencedContentItemIdentifier'],\n 'E001': ['ST', '1', 'HL7InstanceIdentifier'],\n 'E004': ['DT', '1', 'HL7DocumentEffectiveTime'],\n 'E006': ['SQ', '1', 'HL7DocumentTypeCodeSequence'],\n 'E008': ['SQ', '1', 'DocumentClassCodeSequence'],\n 'E010': ['UR', '1', 'RetrieveURI'],\n 'E011': ['UI', '1', 'RetrieveLocationUID'],\n 'E020': ['CS', '1', 'TypeOfInstances'],\n 'E021': ['SQ', '1', 'DICOMRetrievalSequence'],\n 'E022': ['SQ', '1', 'DICOMMediaRetrievalSequence'],\n 'E023': ['SQ', '1', 'WADORetrievalSequence'],\n 'E024': ['SQ', '1', 'XDSRetrievalSequence'],\n 'E025': ['SQ', '1', 'WADORSRetrievalSequence'],\n 'E030': ['UI', '1', 'RepositoryUniqueID'],\n 'E031': ['UI', '1', 'HomeCommunityID']\n },\n '0042': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['ST', '1', 'DocumentTitle'],\n '0011': ['OB', '1', 'EncapsulatedDocument'],\n '0012': ['LO', '1', 'MIMETypeOfEncapsulatedDocument'],\n '0013': ['SQ', '1', 'SourceInstanceSequence'],\n '0014': ['LO', '1-n', 'ListOfMIMETypes'],\n '0015': ['UL', '1', 'EncapsulatedDocumentLength']\n },\n '0044': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['ST', '1', 'ProductPackageIdentifier'],\n '0002': ['CS', '1', 'SubstanceAdministrationApproval'],\n '0003': ['LT', '1', 'ApprovalStatusFurtherDescription'],\n '0004': ['DT', '1', 'ApprovalStatusDateTime'],\n '0007': ['SQ', '1', 'ProductTypeCodeSequence'],\n '0008': ['LO', '1-n', 'ProductName'],\n '0009': ['LT', '1', 'ProductDescription'],\n '000A': ['LO', '1', 'ProductLotIdentifier'],\n '000B': ['DT', '1', 'ProductExpirationDateTime'],\n '0010': ['DT', '1', 'SubstanceAdministrationDateTime'],\n '0011': ['LO', '1', 'SubstanceAdministrationNotes'],\n '0012': ['LO', '1', 'SubstanceAdministrationDeviceID'],\n '0013': ['SQ', '1', 'ProductParameterSequence'],\n '0019': ['SQ', '1', 'SubstanceAdministrationParameterSequence'],\n '0100': ['SQ', '1', 'ApprovalSequence'],\n '0101': ['SQ', '1', 'AssertionCodeSequence'],\n '0102': ['UI', '1', 'AssertionUID'],\n '0103': ['SQ', '1', 'AsserterIdentificationSequence'],\n '0104': ['DT', '1', 'AssertionDateTime'],\n '0105': ['DT', '1', 'AssertionExpirationDateTime'],\n '0106': ['UT', '1', 'AssertionComments'],\n '0107': ['SQ', '1', 'RelatedAssertionSequence'],\n '0108': ['UI', '1', 'ReferencedAssertionUID'],\n '0109': ['SQ', '1', 'ApprovalSubjectSequence'],\n '010A': ['SQ', '1', 'OrganizationalRoleCodeSequence']\n },\n '0046': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0012': ['LO', '1', 'LensDescription'],\n '0014': ['SQ', '1', 'RightLensSequence'],\n '0015': ['SQ', '1', 'LeftLensSequence'],\n '0016': ['SQ', '1', 'UnspecifiedLateralityLensSequence'],\n '0018': ['SQ', '1', 'CylinderSequence'],\n '0028': ['SQ', '1', 'PrismSequence'],\n '0030': ['FD', '1', 'HorizontalPrismPower'],\n '0032': ['CS', '1', 'HorizontalPrismBase'],\n '0034': ['FD', '1', 'VerticalPrismPower'],\n '0036': ['CS', '1', 'VerticalPrismBase'],\n '0038': ['CS', '1', 'LensSegmentType'],\n '0040': ['FD', '1', 'OpticalTransmittance'],\n '0042': ['FD', '1', 'ChannelWidth'],\n '0044': ['FD', '1', 'PupilSize'],\n '0046': ['FD', '1', 'CornealSize'],\n '0047': ['SQ', '1', 'CornealSizeSequence'],\n '0050': ['SQ', '1', 'AutorefractionRightEyeSequence'],\n '0052': ['SQ', '1', 'AutorefractionLeftEyeSequence'],\n '0060': ['FD', '1', 'DistancePupillaryDistance'],\n '0062': ['FD', '1', 'NearPupillaryDistance'],\n '0063': ['FD', '1', 'IntermediatePupillaryDistance'],\n '0064': ['FD', '1', 'OtherPupillaryDistance'],\n '0070': ['SQ', '1', 'KeratometryRightEyeSequence'],\n '0071': ['SQ', '1', 'KeratometryLeftEyeSequence'],\n '0074': ['SQ', '1', 'SteepKeratometricAxisSequence'],\n '0075': ['FD', '1', 'RadiusOfCurvature'],\n '0076': ['FD', '1', 'KeratometricPower'],\n '0077': ['FD', '1', 'KeratometricAxis'],\n '0080': ['SQ', '1', 'FlatKeratometricAxisSequence'],\n '0092': ['CS', '1', 'BackgroundColor'],\n '0094': ['CS', '1', 'Optotype'],\n '0095': ['CS', '1', 'OptotypePresentation'],\n '0097': ['SQ', '1', 'SubjectiveRefractionRightEyeSequence'],\n '0098': ['SQ', '1', 'SubjectiveRefractionLeftEyeSequence'],\n '0100': ['SQ', '1', 'AddNearSequence'],\n '0101': ['SQ', '1', 'AddIntermediateSequence'],\n '0102': ['SQ', '1', 'AddOtherSequence'],\n '0104': ['FD', '1', 'AddPower'],\n '0106': ['FD', '1', 'ViewingDistance'],\n '0110': ['SQ', '1', 'CorneaMeasurementsSequence'],\n '0111': ['SQ', '1', 'SourceOfCorneaMeasurementDataCodeSequence'],\n '0112': ['SQ', '1', 'SteepCornealAxisSequence'],\n '0113': ['SQ', '1', 'FlatCornealAxisSequence'],\n '0114': ['FD', '1', 'CornealPower'],\n '0115': ['FD', '1', 'CornealAxis'],\n '0116': ['SQ', '1', 'CorneaMeasurementMethodCodeSequence'],\n '0117': ['FL', '1', 'RefractiveIndexOfCornea'],\n '0118': ['FL', '1', 'RefractiveIndexOfAqueousHumor'],\n '0121': ['SQ', '1', 'VisualAcuityTypeCodeSequence'],\n '0122': ['SQ', '1', 'VisualAcuityRightEyeSequence'],\n '0123': ['SQ', '1', 'VisualAcuityLeftEyeSequence'],\n '0124': ['SQ', '1', 'VisualAcuityBothEyesOpenSequence'],\n '0125': ['CS', '1', 'ViewingDistanceType'],\n '0135': ['SS', '2', 'VisualAcuityModifiers'],\n '0137': ['FD', '1', 'DecimalVisualAcuity'],\n '0139': ['LO', '1', 'OptotypeDetailedDefinition'],\n '0145': ['SQ', '1', 'ReferencedRefractiveMeasurementsSequence'],\n '0146': ['FD', '1', 'SpherePower'],\n '0147': ['FD', '1', 'CylinderPower'],\n '0201': ['CS', '1', 'CornealTopographySurface'],\n '0202': ['FL', '2', 'CornealVertexLocation'],\n '0203': ['FL', '1', 'PupilCentroidXCoordinate'],\n '0204': ['FL', '1', 'PupilCentroidYCoordinate'],\n '0205': ['FL', '1', 'EquivalentPupilRadius'],\n '0207': ['SQ', '1', 'CornealTopographyMapTypeCodeSequence'],\n '0208': ['IS', '2-2n', 'VerticesOfTheOutlineOfPupil'],\n '0210': ['SQ', '1', 'CornealTopographyMappingNormalsSequence'],\n '0211': ['SQ', '1', 'MaximumCornealCurvatureSequence'],\n '0212': ['FL', '1', 'MaximumCornealCurvature'],\n '0213': ['FL', '2', 'MaximumCornealCurvatureLocation'],\n '0215': ['SQ', '1', 'MinimumKeratometricSequence'],\n '0218': ['SQ', '1', 'SimulatedKeratometricCylinderSequence'],\n '0220': ['FL', '1', 'AverageCornealPower'],\n '0224': ['FL', '1', 'CornealISValue'],\n '0227': ['FL', '1', 'AnalyzedArea'],\n '0230': ['FL', '1', 'SurfaceRegularityIndex'],\n '0232': ['FL', '1', 'SurfaceAsymmetryIndex'],\n '0234': ['FL', '1', 'CornealEccentricityIndex'],\n '0236': ['FL', '1', 'KeratoconusPredictionIndex'],\n '0238': ['FL', '1', 'DecimalPotentialVisualAcuity'],\n '0242': ['CS', '1', 'CornealTopographyMapQualityEvaluation'],\n '0244': ['SQ', '1', 'SourceImageCornealProcessedDataSequence'],\n '0247': ['FL', '3', 'CornealPointLocation'],\n '0248': ['CS', '1', 'CornealPointEstimated'],\n '0249': ['FL', '1', 'AxialPower'],\n '0250': ['FL', '1', 'TangentialPower'],\n '0251': ['FL', '1', 'RefractivePower'],\n '0252': ['FL', '1', 'RelativeElevation'],\n '0253': ['FL', '1', 'CornealWavefront']\n },\n '0048': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['FL', '1', 'ImagedVolumeWidth'],\n '0002': ['FL', '1', 'ImagedVolumeHeight'],\n '0003': ['FL', '1', 'ImagedVolumeDepth'],\n '0006': ['UL', '1', 'TotalPixelMatrixColumns'],\n '0007': ['UL', '1', 'TotalPixelMatrixRows'],\n '0008': ['SQ', '1', 'TotalPixelMatrixOriginSequence'],\n '0010': ['CS', '1', 'SpecimenLabelInImage'],\n '0011': ['CS', '1', 'FocusMethod'],\n '0012': ['CS', '1', 'ExtendedDepthOfField'],\n '0013': ['US', '1', 'NumberOfFocalPlanes'],\n '0014': ['FL', '1', 'DistanceBetweenFocalPlanes'],\n '0015': ['US', '3', 'RecommendedAbsentPixelCIELabValue'],\n '0100': ['SQ', '1', 'IlluminatorTypeCodeSequence'],\n '0102': ['DS', '6', 'ImageOrientationSlide'],\n '0105': ['SQ', '1', 'OpticalPathSequence'],\n '0106': ['SH', '1', 'OpticalPathIdentifier'],\n '0107': ['ST', '1', 'OpticalPathDescription'],\n '0108': ['SQ', '1', 'IlluminationColorCodeSequence'],\n '0110': ['SQ', '1', 'SpecimenReferenceSequence'],\n '0111': ['DS', '1', 'CondenserLensPower'],\n '0112': ['DS', '1', 'ObjectiveLensPower'],\n '0113': ['DS', '1', 'ObjectiveLensNumericalAperture'],\n '0120': ['SQ', '1', 'PaletteColorLookupTableSequence'],\n '0200': ['SQ', '1', 'ReferencedImageNavigationSequence'],\n '0201': ['US', '2', 'TopLeftHandCornerOfLocalizerArea'],\n '0202': ['US', '2', 'BottomRightHandCornerOfLocalizerArea'],\n '0207': ['SQ', '1', 'OpticalPathIdentificationSequence'],\n '021A': ['SQ', '1', 'PlanePositionSlideSequence'],\n '021E': ['SL', '1', 'ColumnPositionInTotalImagePixelMatrix'],\n '021F': ['SL', '1', 'RowPositionInTotalImagePixelMatrix'],\n '0301': ['CS', '1', 'PixelOriginInterpretation'],\n '0302': ['UL', '1', 'NumberOfOpticalPaths'],\n '0303': ['UL', '1', 'TotalPixelMatrixFocalPlanes']\n },\n '0050': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['CS', '1', 'CalibrationImage'],\n '0010': ['SQ', '1', 'DeviceSequence'],\n '0012': ['SQ', '1', 'ContainerComponentTypeCodeSequence'],\n '0013': ['FD', '1', 'ContainerComponentThickness'],\n '0014': ['DS', '1', 'DeviceLength'],\n '0015': ['FD', '1', 'ContainerComponentWidth'],\n '0016': ['DS', '1', 'DeviceDiameter'],\n '0017': ['CS', '1', 'DeviceDiameterUnits'],\n '0018': ['DS', '1', 'DeviceVolume'],\n '0019': ['DS', '1', 'InterMarkerDistance'],\n '001A': ['CS', '1', 'ContainerComponentMaterial'],\n '001B': ['LO', '1', 'ContainerComponentID'],\n '001C': ['FD', '1', 'ContainerComponentLength'],\n '001D': ['FD', '1', 'ContainerComponentDiameter'],\n '001E': ['LO', '1', 'ContainerComponentDescription'],\n '0020': ['LO', '1', 'DeviceDescription'],\n '0021': ['ST', '1', 'LongDeviceDescription']\n },\n '0052': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['FL', '1', 'ContrastBolusIngredientPercentByVolume'],\n '0002': ['FD', '1', 'OCTFocalDistance'],\n '0003': ['FD', '1', 'BeamSpotSize'],\n '0004': ['FD', '1', 'EffectiveRefractiveIndex'],\n '0006': ['CS', '1', 'OCTAcquisitionDomain'],\n '0007': ['FD', '1', 'OCTOpticalCenterWavelength'],\n '0008': ['FD', '1', 'AxialResolution'],\n '0009': ['FD', '1', 'RangingDepth'],\n '0011': ['FD', '1', 'ALineRate'],\n '0012': ['US', '1', 'ALinesPerFrame'],\n '0013': ['FD', '1', 'CatheterRotationalRate'],\n '0014': ['FD', '1', 'ALinePixelSpacing'],\n '0016': ['SQ', '1', 'ModeOfPercutaneousAccessSequence'],\n '0025': ['SQ', '1', 'IntravascularOCTFrameTypeSequence'],\n '0026': ['CS', '1', 'OCTZOffsetApplied'],\n '0027': ['SQ', '1', 'IntravascularFrameContentSequence'],\n '0028': ['FD', '1', 'IntravascularLongitudinalDistance'],\n '0029': ['SQ', '1', 'IntravascularOCTFrameContentSequence'],\n '0030': ['SS', '1', 'OCTZOffsetCorrection'],\n '0031': ['CS', '1', 'CatheterDirectionOfRotation'],\n '0033': ['FD', '1', 'SeamLineLocation'],\n '0034': ['FD', '1', 'FirstALineLocation'],\n '0036': ['US', '1', 'SeamLineIndex'],\n '0038': ['US', '1', 'NumberOfPaddedALines'],\n '0039': ['CS', '1', 'InterpolationType'],\n '003A': ['CS', '1', 'RefractiveIndexApplied']\n },\n '0054': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1-n', 'EnergyWindowVector'],\n '0011': ['US', '1', 'NumberOfEnergyWindows'],\n '0012': ['SQ', '1', 'EnergyWindowInformationSequence'],\n '0013': ['SQ', '1', 'EnergyWindowRangeSequence'],\n '0014': ['DS', '1', 'EnergyWindowLowerLimit'],\n '0015': ['DS', '1', 'EnergyWindowUpperLimit'],\n '0016': ['SQ', '1', 'RadiopharmaceuticalInformationSequence'],\n '0017': ['IS', '1', 'ResidualSyringeCounts'],\n '0018': ['SH', '1', 'EnergyWindowName'],\n '0020': ['US', '1-n', 'DetectorVector'],\n '0021': ['US', '1', 'NumberOfDetectors'],\n '0022': ['SQ', '1', 'DetectorInformationSequence'],\n '0030': ['US', '1-n', 'PhaseVector'],\n '0031': ['US', '1', 'NumberOfPhases'],\n '0032': ['SQ', '1', 'PhaseInformationSequence'],\n '0033': ['US', '1', 'NumberOfFramesInPhase'],\n '0036': ['IS', '1', 'PhaseDelay'],\n '0038': ['IS', '1', 'PauseBetweenFrames'],\n '0039': ['CS', '1', 'PhaseDescription'],\n '0050': ['US', '1-n', 'RotationVector'],\n '0051': ['US', '1', 'NumberOfRotations'],\n '0052': ['SQ', '1', 'RotationInformationSequence'],\n '0053': ['US', '1', 'NumberOfFramesInRotation'],\n '0060': ['US', '1-n', 'RRIntervalVector'],\n '0061': ['US', '1', 'NumberOfRRIntervals'],\n '0062': ['SQ', '1', 'GatedInformationSequence'],\n '0063': ['SQ', '1', 'DataInformationSequence'],\n '0070': ['US', '1-n', 'TimeSlotVector'],\n '0071': ['US', '1', 'NumberOfTimeSlots'],\n '0072': ['SQ', '1', 'TimeSlotInformationSequence'],\n '0073': ['DS', '1', 'TimeSlotTime'],\n '0080': ['US', '1-n', 'SliceVector'],\n '0081': ['US', '1', 'NumberOfSlices'],\n '0090': ['US', '1-n', 'AngularViewVector'],\n '0100': ['US', '1-n', 'TimeSliceVector'],\n '0101': ['US', '1', 'NumberOfTimeSlices'],\n '0200': ['DS', '1', 'StartAngle'],\n '0202': ['CS', '1', 'TypeOfDetectorMotion'],\n '0210': ['IS', '1-n', 'TriggerVector'],\n '0211': ['US', '1', 'NumberOfTriggersInPhase'],\n '0220': ['SQ', '1', 'ViewCodeSequence'],\n '0222': ['SQ', '1', 'ViewModifierCodeSequence'],\n '0300': ['SQ', '1', 'RadionuclideCodeSequence'],\n '0302': ['SQ', '1', 'AdministrationRouteCodeSequence'],\n '0304': ['SQ', '1', 'RadiopharmaceuticalCodeSequence'],\n '0306': ['SQ', '1', 'CalibrationDataSequence'],\n '0308': ['US', '1', 'EnergyWindowNumber'],\n '0400': ['SH', '1', 'ImageID'],\n '0410': ['SQ', '1', 'PatientOrientationCodeSequence'],\n '0412': ['SQ', '1', 'PatientOrientationModifierCodeSequence'],\n '0414': ['SQ', '1', 'PatientGantryRelationshipCodeSequence'],\n '0500': ['CS', '1', 'SliceProgressionDirection'],\n '0501': ['CS', '1', 'ScanProgressionDirection'],\n '1000': ['CS', '2', 'SeriesType'],\n '1001': ['CS', '1', 'Units'],\n '1002': ['CS', '1', 'CountsSource'],\n '1004': ['CS', '1', 'ReprojectionMethod'],\n '1006': ['CS', '1', 'SUVType'],\n '1100': ['CS', '1', 'RandomsCorrectionMethod'],\n '1101': ['LO', '1', 'AttenuationCorrectionMethod'],\n '1102': ['CS', '1', 'DecayCorrection'],\n '1103': ['LO', '1', 'ReconstructionMethod'],\n '1104': ['LO', '1', 'DetectorLinesOfResponseUsed'],\n '1105': ['LO', '1', 'ScatterCorrectionMethod'],\n '1200': ['DS', '1', 'AxialAcceptance'],\n '1201': ['IS', '2', 'AxialMash'],\n '1202': ['IS', '1', 'TransverseMash'],\n '1203': ['DS', '2', 'DetectorElementSize'],\n '1210': ['DS', '1', 'CoincidenceWindowWidth'],\n '1220': ['CS', '1-n', 'SecondaryCountsType'],\n '1300': ['DS', '1', 'FrameReferenceTime'],\n '1310': ['IS', '1', 'PrimaryPromptsCountsAccumulated'],\n '1311': ['IS', '1-n', 'SecondaryCountsAccumulated'],\n '1320': ['DS', '1', 'SliceSensitivityFactor'],\n '1321': ['DS', '1', 'DecayFactor'],\n '1322': ['DS', '1', 'DoseCalibrationFactor'],\n '1323': ['DS', '1', 'ScatterFractionFactor'],\n '1324': ['DS', '1', 'DeadTimeFactor'],\n '1330': ['US', '1', 'ImageIndex'],\n '1400': ['CS', '1-n', 'CountsIncluded'],\n '1401': ['CS', '1', 'DeadTimeCorrectionFlag']\n },\n '0060': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '3000': ['SQ', '1', 'HistogramSequence'],\n '3002': ['US', '1', 'HistogramNumberOfBins'],\n '3004': ['xs', '1', 'HistogramFirstBinValue'],\n '3006': ['xs', '1', 'HistogramLastBinValue'],\n '3008': ['US', '1', 'HistogramBinWidth'],\n '3010': ['LO', '1', 'HistogramExplanation'],\n '3020': ['UL', '1-n', 'HistogramData']\n },\n '0062': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'SegmentationType'],\n '0002': ['SQ', '1', 'SegmentSequence'],\n '0003': ['SQ', '1', 'SegmentedPropertyCategoryCodeSequence'],\n '0004': ['US', '1', 'SegmentNumber'],\n '0005': ['LO', '1', 'SegmentLabel'],\n '0006': ['ST', '1', 'SegmentDescription'],\n '0007': ['SQ', '1', 'SegmentationAlgorithmIdentificationSequence'],\n '0008': ['CS', '1', 'SegmentAlgorithmType'],\n '0009': ['LO', '1-n', 'SegmentAlgorithmName'],\n '000A': ['SQ', '1', 'SegmentIdentificationSequence'],\n '000B': ['US', '1-n', 'ReferencedSegmentNumber'],\n '000C': ['US', '1', 'RecommendedDisplayGrayscaleValue'],\n '000D': ['US', '3', 'RecommendedDisplayCIELabValue'],\n '000E': ['US', '1', 'MaximumFractionalValue'],\n '000F': ['SQ', '1', 'SegmentedPropertyTypeCodeSequence'],\n '0010': ['CS', '1', 'SegmentationFractionalType'],\n '0011': ['SQ', '1', 'SegmentedPropertyTypeModifierCodeSequence'],\n '0012': ['SQ', '1', 'UsedSegmentsSequence'],\n '0013': ['CS', '1', 'SegmentsOverlap'],\n '0020': ['UT', '1', 'TrackingID'],\n '0021': ['UI', '1', 'TrackingUID']\n },\n '0064': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SQ', '1', 'DeformableRegistrationSequence'],\n '0003': ['UI', '1', 'SourceFrameOfReferenceUID'],\n '0005': ['SQ', '1', 'DeformableRegistrationGridSequence'],\n '0007': ['UL', '3', 'GridDimensions'],\n '0008': ['FD', '3', 'GridResolution'],\n '0009': ['OF', '1', 'VectorGridData'],\n '000F': ['SQ', '1', 'PreDeformationMatrixRegistrationSequence'],\n '0010': ['SQ', '1', 'PostDeformationMatrixRegistrationSequence']\n },\n '0066': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['UL', '1', 'NumberOfSurfaces'],\n '0002': ['SQ', '1', 'SurfaceSequence'],\n '0003': ['UL', '1', 'SurfaceNumber'],\n '0004': ['LT', '1', 'SurfaceComments'],\n '0009': ['CS', '1', 'SurfaceProcessing'],\n '000A': ['FL', '1', 'SurfaceProcessingRatio'],\n '000B': ['LO', '1', 'SurfaceProcessingDescription'],\n '000C': ['FL', '1', 'RecommendedPresentationOpacity'],\n '000D': ['CS', '1', 'RecommendedPresentationType'],\n '000E': ['CS', '1', 'FiniteVolume'],\n '0010': ['CS', '1', 'Manifold'],\n '0011': ['SQ', '1', 'SurfacePointsSequence'],\n '0012': ['SQ', '1', 'SurfacePointsNormalsSequence'],\n '0013': ['SQ', '1', 'SurfaceMeshPrimitivesSequence'],\n '0015': ['UL', '1', 'NumberOfSurfacePoints'],\n '0016': ['OF', '1', 'PointCoordinatesData'],\n '0017': ['FL', '3', 'PointPositionAccuracy'],\n '0018': ['FL', '1', 'MeanPointDistance'],\n '0019': ['FL', '1', 'MaximumPointDistance'],\n '001A': ['FL', '6', 'PointsBoundingBoxCoordinates'],\n '001B': ['FL', '3', 'AxisOfRotation'],\n '001C': ['FL', '3', 'CenterOfRotation'],\n '001E': ['UL', '1', 'NumberOfVectors'],\n '001F': ['US', '1', 'VectorDimensionality'],\n '0020': ['FL', '1-n', 'VectorAccuracy'],\n '0021': ['OF', '1', 'VectorCoordinateData'],\n '0022': ['OD', '1', 'DoublePointCoordinatesData'],\n '0023': ['OW', '1', 'TrianglePointIndexList'],\n '0024': ['OW', '1', 'EdgePointIndexList'],\n '0025': ['OW', '1', 'VertexPointIndexList'],\n '0026': ['SQ', '1', 'TriangleStripSequence'],\n '0027': ['SQ', '1', 'TriangleFanSequence'],\n '0028': ['SQ', '1', 'LineSequence'],\n '0029': ['OW', '1', 'PrimitivePointIndexList'],\n '002A': ['UL', '1', 'SurfaceCount'],\n '002B': ['SQ', '1', 'ReferencedSurfaceSequence'],\n '002C': ['UL', '1', 'ReferencedSurfaceNumber'],\n '002D': ['SQ', '1', 'SegmentSurfaceGenerationAlgorithmIdentificationSequence'],\n '002E': ['SQ', '1', 'SegmentSurfaceSourceInstanceSequence'],\n '002F': ['SQ', '1', 'AlgorithmFamilyCodeSequence'],\n '0030': ['SQ', '1', 'AlgorithmNameCodeSequence'],\n '0031': ['LO', '1', 'AlgorithmVersion'],\n '0032': ['LT', '1', 'AlgorithmParameters'],\n '0034': ['SQ', '1', 'FacetSequence'],\n '0035': ['SQ', '1', 'SurfaceProcessingAlgorithmIdentificationSequence'],\n '0036': ['LO', '1', 'AlgorithmName'],\n '0037': ['FL', '1', 'RecommendedPointRadius'],\n '0038': ['FL', '1', 'RecommendedLineThickness'],\n '0040': ['OL', '1', 'LongPrimitivePointIndexList'],\n '0041': ['OL', '1', 'LongTrianglePointIndexList'],\n '0042': ['OL', '1', 'LongEdgePointIndexList'],\n '0043': ['OL', '1', 'LongVertexPointIndexList'],\n '0101': ['SQ', '1', 'TrackSetSequence'],\n '0102': ['SQ', '1', 'TrackSequence'],\n '0103': ['OW', '1', 'RecommendedDisplayCIELabValueList'],\n '0104': ['SQ', '1', 'TrackingAlgorithmIdentificationSequence'],\n '0105': ['UL', '1', 'TrackSetNumber'],\n '0106': ['LO', '1', 'TrackSetLabel'],\n '0107': ['UT', '1', 'TrackSetDescription'],\n '0108': ['SQ', '1', 'TrackSetAnatomicalTypeCodeSequence'],\n '0121': ['SQ', '1', 'MeasurementsSequence'],\n '0124': ['SQ', '1', 'TrackSetStatisticsSequence'],\n '0125': ['OF', '1', 'FloatingPointValues'],\n '0129': ['OL', '1', 'TrackPointIndexList'],\n '0130': ['SQ', '1', 'TrackStatisticsSequence'],\n '0132': ['SQ', '1', 'MeasurementValuesSequence'],\n '0133': ['SQ', '1', 'DiffusionAcquisitionCodeSequence'],\n '0134': ['SQ', '1', 'DiffusionModelCodeSequence']\n },\n '0068': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '6210': ['LO', '1', 'ImplantSize'],\n '6221': ['LO', '1', 'ImplantTemplateVersion'],\n '6222': ['SQ', '1', 'ReplacedImplantTemplateSequence'],\n '6223': ['CS', '1', 'ImplantType'],\n '6224': ['SQ', '1', 'DerivationImplantTemplateSequence'],\n '6225': ['SQ', '1', 'OriginalImplantTemplateSequence'],\n '6226': ['DT', '1', 'EffectiveDateTime'],\n '6230': ['SQ', '1', 'ImplantTargetAnatomySequence'],\n '6260': ['SQ', '1', 'InformationFromManufacturerSequence'],\n '6265': ['SQ', '1', 'NotificationFromManufacturerSequence'],\n '6270': ['DT', '1', 'InformationIssueDateTime'],\n '6280': ['ST', '1', 'InformationSummary'],\n '62A0': ['SQ', '1', 'ImplantRegulatoryDisapprovalCodeSequence'],\n '62A5': ['FD', '1', 'OverallTemplateSpatialTolerance'],\n '62C0': ['SQ', '1', 'HPGLDocumentSequence'],\n '62D0': ['US', '1', 'HPGLDocumentID'],\n '62D5': ['LO', '1', 'HPGLDocumentLabel'],\n '62E0': ['SQ', '1', 'ViewOrientationCodeSequence'],\n '62F0': ['SQ', '1', 'ViewOrientationModifierCodeSequence'],\n '62F2': ['FD', '1', 'HPGLDocumentScaling'],\n '6300': ['OB', '1', 'HPGLDocument'],\n '6310': ['US', '1', 'HPGLContourPenNumber'],\n '6320': ['SQ', '1', 'HPGLPenSequence'],\n '6330': ['US', '1', 'HPGLPenNumber'],\n '6340': ['LO', '1', 'HPGLPenLabel'],\n '6345': ['ST', '1', 'HPGLPenDescription'],\n '6346': ['FD', '2', 'RecommendedRotationPoint'],\n '6347': ['FD', '4', 'BoundingRectangle'],\n '6350': ['US', '1-n', 'ImplantTemplate3DModelSurfaceNumber'],\n '6360': ['SQ', '1', 'SurfaceModelDescriptionSequence'],\n '6380': ['LO', '1', 'SurfaceModelLabel'],\n '6390': ['FD', '1', 'SurfaceModelScalingFactor'],\n '63A0': ['SQ', '1', 'MaterialsCodeSequence'],\n '63A4': ['SQ', '1', 'CoatingMaterialsCodeSequence'],\n '63A8': ['SQ', '1', 'ImplantTypeCodeSequence'],\n '63AC': ['SQ', '1', 'FixationMethodCodeSequence'],\n '63B0': ['SQ', '1', 'MatingFeatureSetsSequence'],\n '63C0': ['US', '1', 'MatingFeatureSetID'],\n '63D0': ['LO', '1', 'MatingFeatureSetLabel'],\n '63E0': ['SQ', '1', 'MatingFeatureSequence'],\n '63F0': ['US', '1', 'MatingFeatureID'],\n '6400': ['SQ', '1', 'MatingFeatureDegreeOfFreedomSequence'],\n '6410': ['US', '1', 'DegreeOfFreedomID'],\n '6420': ['CS', '1', 'DegreeOfFreedomType'],\n '6430': ['SQ', '1', 'TwoDMatingFeatureCoordinatesSequence'],\n '6440': ['US', '1', 'ReferencedHPGLDocumentID'],\n '6450': ['FD', '2', 'TwoDMatingPoint'],\n '6460': ['FD', '4', 'TwoDMatingAxes'],\n '6470': ['SQ', '1', 'TwoDDegreeOfFreedomSequence'],\n '6490': ['FD', '3', 'ThreeDDegreeOfFreedomAxis'],\n '64A0': ['FD', '2', 'RangeOfFreedom'],\n '64C0': ['FD', '3', 'ThreeDMatingPoint'],\n '64D0': ['FD', '9', 'ThreeDMatingAxes'],\n '64F0': ['FD', '3', 'TwoDDegreeOfFreedomAxis'],\n '6500': ['SQ', '1', 'PlanningLandmarkPointSequence'],\n '6510': ['SQ', '1', 'PlanningLandmarkLineSequence'],\n '6520': ['SQ', '1', 'PlanningLandmarkPlaneSequence'],\n '6530': ['US', '1', 'PlanningLandmarkID'],\n '6540': ['LO', '1', 'PlanningLandmarkDescription'],\n '6545': ['SQ', '1', 'PlanningLandmarkIdentificationCodeSequence'],\n '6550': ['SQ', '1', 'TwoDPointCoordinatesSequence'],\n '6560': ['FD', '2', 'TwoDPointCoordinates'],\n '6590': ['FD', '3', 'ThreeDPointCoordinates'],\n '65A0': ['SQ', '1', 'TwoDLineCoordinatesSequence'],\n '65B0': ['FD', '4', 'TwoDLineCoordinates'],\n '65D0': ['FD', '6', 'ThreeDLineCoordinates'],\n '65E0': ['SQ', '1', 'TwoDPlaneCoordinatesSequence'],\n '65F0': ['FD', '4', 'TwoDPlaneIntersection'],\n '6610': ['FD', '3', 'ThreeDPlaneOrigin'],\n '6620': ['FD', '3', 'ThreeDPlaneNormal'],\n '7001': ['CS', '1', 'ModelModification'],\n '7002': ['CS', '1', 'ModelMirroring'],\n '7003': ['SQ', '1', 'ModelUsageCodeSequence'],\n '7004': ['UI', '1', 'ModelGroupUID'],\n '7005': ['UR', '1', 'RelativeURIReferenceWithinEncapsulatedDocument']\n },\n '006A': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'AnnotationCoordinateType'],\n '0002': ['SQ', '1', 'AnnotationGroupSequence'],\n '0003': ['UI', '1', 'AnnotationGroupUID'],\n '0005': ['LO', '1', 'AnnotationGroupLabel'],\n '0006': ['UT', '1', 'AnnotationGroupDescription'],\n '0007': ['CS', '1', 'AnnotationGroupGenerationType'],\n '0008': ['SQ', '1', 'AnnotationGroupAlgorithmIdentificationSequence'],\n '0009': ['SQ', '1', 'AnnotationPropertyCategoryCodeSequence'],\n '000A': ['SQ', '1', 'AnnotationPropertyTypeCodeSequence'],\n '000B': ['SQ', '1', 'AnnotationPropertyTypeModifierCodeSequence'],\n '000C': ['UL', '1', 'NumberOfAnnotations'],\n '000D': ['CS', '1', 'AnnotationAppliesToAllOpticalPaths'],\n '000E': ['SH', '1-n', 'ReferencedOpticalPathIdentifier'],\n '000F': ['CS', '1', 'AnnotationAppliesToAllZPlanes'],\n '0010': ['FD', '1-n', 'CommonZCoordinateValue'],\n '0011': ['OL', '1', 'AnnotationIndexList']\n },\n '0070': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'GraphicAnnotationSequence'],\n '0002': ['CS', '1', 'GraphicLayer'],\n '0003': ['CS', '1', 'BoundingBoxAnnotationUnits'],\n '0004': ['CS', '1', 'AnchorPointAnnotationUnits'],\n '0005': ['CS', '1', 'GraphicAnnotationUnits'],\n '0006': ['ST', '1', 'UnformattedTextValue'],\n '0008': ['SQ', '1', 'TextObjectSequence'],\n '0009': ['SQ', '1', 'GraphicObjectSequence'],\n '0010': ['FL', '2', 'BoundingBoxTopLeftHandCorner'],\n '0011': ['FL', '2', 'BoundingBoxBottomRightHandCorner'],\n '0012': ['CS', '1', 'BoundingBoxTextHorizontalJustification'],\n '0014': ['FL', '2', 'AnchorPoint'],\n '0015': ['CS', '1', 'AnchorPointVisibility'],\n '0020': ['US', '1', 'GraphicDimensions'],\n '0021': ['US', '1', 'NumberOfGraphicPoints'],\n '0022': ['FL', '2-n', 'GraphicData'],\n '0023': ['CS', '1', 'GraphicType'],\n '0024': ['CS', '1', 'GraphicFilled'],\n '0040': ['IS', '1', 'ImageRotationRetired'],\n '0041': ['CS', '1', 'ImageHorizontalFlip'],\n '0042': ['US', '1', 'ImageRotation'],\n '0050': ['US', '2', 'DisplayedAreaTopLeftHandCornerTrial'],\n '0051': ['US', '2', 'DisplayedAreaBottomRightHandCornerTrial'],\n '0052': ['SL', '2', 'DisplayedAreaTopLeftHandCorner'],\n '0053': ['SL', '2', 'DisplayedAreaBottomRightHandCorner'],\n '005A': ['SQ', '1', 'DisplayedAreaSelectionSequence'],\n '0060': ['SQ', '1', 'GraphicLayerSequence'],\n '0062': ['IS', '1', 'GraphicLayerOrder'],\n '0066': ['US', '1', 'GraphicLayerRecommendedDisplayGrayscaleValue'],\n '0067': ['US', '3', 'GraphicLayerRecommendedDisplayRGBValue'],\n '0068': ['LO', '1', 'GraphicLayerDescription'],\n '0080': ['CS', '1', 'ContentLabel'],\n '0081': ['LO', '1', 'ContentDescription'],\n '0082': ['DA', '1', 'PresentationCreationDate'],\n '0083': ['TM', '1', 'PresentationCreationTime'],\n '0084': ['PN', '1', 'ContentCreatorName'],\n '0086': ['SQ', '1', 'ContentCreatorIdentificationCodeSequence'],\n '0087': ['SQ', '1', 'AlternateContentDescriptionSequence'],\n '0100': ['CS', '1', 'PresentationSizeMode'],\n '0101': ['DS', '2', 'PresentationPixelSpacing'],\n '0102': ['IS', '2', 'PresentationPixelAspectRatio'],\n '0103': ['FL', '1', 'PresentationPixelMagnificationRatio'],\n '0207': ['LO', '1', 'GraphicGroupLabel'],\n '0208': ['ST', '1', 'GraphicGroupDescription'],\n '0209': ['SQ', '1', 'CompoundGraphicSequence'],\n '0226': ['UL', '1', 'CompoundGraphicInstanceID'],\n '0227': ['LO', '1', 'FontName'],\n '0228': ['CS', '1', 'FontNameType'],\n '0229': ['LO', '1', 'CSSFontName'],\n '0230': ['FD', '1', 'RotationAngle'],\n '0231': ['SQ', '1', 'TextStyleSequence'],\n '0232': ['SQ', '1', 'LineStyleSequence'],\n '0233': ['SQ', '1', 'FillStyleSequence'],\n '0234': ['SQ', '1', 'GraphicGroupSequence'],\n '0241': ['US', '3', 'TextColorCIELabValue'],\n '0242': ['CS', '1', 'HorizontalAlignment'],\n '0243': ['CS', '1', 'VerticalAlignment'],\n '0244': ['CS', '1', 'ShadowStyle'],\n '0245': ['FL', '1', 'ShadowOffsetX'],\n '0246': ['FL', '1', 'ShadowOffsetY'],\n '0247': ['US', '3', 'ShadowColorCIELabValue'],\n '0248': ['CS', '1', 'Underlined'],\n '0249': ['CS', '1', 'Bold'],\n '0250': ['CS', '1', 'Italic'],\n '0251': ['US', '3', 'PatternOnColorCIELabValue'],\n '0252': ['US', '3', 'PatternOffColorCIELabValue'],\n '0253': ['FL', '1', 'LineThickness'],\n '0254': ['CS', '1', 'LineDashingStyle'],\n '0255': ['UL', '1', 'LinePattern'],\n '0256': ['OB', '1', 'FillPattern'],\n '0257': ['CS', '1', 'FillMode'],\n '0258': ['FL', '1', 'ShadowOpacity'],\n '0261': ['FL', '1', 'GapLength'],\n '0262': ['FL', '1', 'DiameterOfVisibility'],\n '0273': ['FL', '2', 'RotationPoint'],\n '0274': ['CS', '1', 'TickAlignment'],\n '0278': ['CS', '1', 'ShowTickLabel'],\n '0279': ['CS', '1', 'TickLabelAlignment'],\n '0282': ['CS', '1', 'CompoundGraphicUnits'],\n '0284': ['FL', '1', 'PatternOnOpacity'],\n '0285': ['FL', '1', 'PatternOffOpacity'],\n '0287': ['SQ', '1', 'MajorTicksSequence'],\n '0288': ['FL', '1', 'TickPosition'],\n '0289': ['SH', '1', 'TickLabel'],\n '0294': ['CS', '1', 'CompoundGraphicType'],\n '0295': ['UL', '1', 'GraphicGroupID'],\n '0306': ['CS', '1', 'ShapeType'],\n '0308': ['SQ', '1', 'RegistrationSequence'],\n '0309': ['SQ', '1', 'MatrixRegistrationSequence'],\n '030A': ['SQ', '1', 'MatrixSequence'],\n '030B': ['FD', '16', 'FrameOfReferenceToDisplayedCoordinateSystemTransformationMatrix'],\n '030C': ['CS', '1', 'FrameOfReferenceTransformationMatrixType'],\n '030D': ['SQ', '1', 'RegistrationTypeCodeSequence'],\n '030F': ['ST', '1', 'FiducialDescription'],\n '0310': ['SH', '1', 'FiducialIdentifier'],\n '0311': ['SQ', '1', 'FiducialIdentifierCodeSequence'],\n '0312': ['FD', '1', 'ContourUncertaintyRadius'],\n '0314': ['SQ', '1', 'UsedFiducialsSequence'],\n '0318': ['SQ', '1', 'GraphicCoordinatesDataSequence'],\n '031A': ['UI', '1', 'FiducialUID'],\n '031B': ['UI', '1', 'ReferencedFiducialUID'],\n '031C': ['SQ', '1', 'FiducialSetSequence'],\n '031E': ['SQ', '1', 'FiducialSequence'],\n '031F': ['SQ', '1', 'FiducialsPropertyCategoryCodeSequence'],\n '0401': ['US', '3', 'GraphicLayerRecommendedDisplayCIELabValue'],\n '0402': ['SQ', '1', 'BlendingSequence'],\n '0403': ['FL', '1', 'RelativeOpacity'],\n '0404': ['SQ', '1', 'ReferencedSpatialRegistrationSequence'],\n '0405': ['CS', '1', 'BlendingPosition'],\n '1101': ['UI', '1', 'PresentationDisplayCollectionUID'],\n '1102': ['UI', '1', 'PresentationSequenceCollectionUID'],\n '1103': ['US', '1', 'PresentationSequencePositionIndex'],\n '1104': ['SQ', '1', 'RenderedImageReferenceSequence'],\n '1201': ['SQ', '1', 'VolumetricPresentationStateInputSequence'],\n '1202': ['CS', '1', 'PresentationInputType'],\n '1203': ['US', '1', 'InputSequencePositionIndex'],\n '1204': ['CS', '1', 'Crop'],\n '1205': ['US', '1-n', 'CroppingSpecificationIndex'],\n '1206': ['CS', '1', 'CompositingMethod'],\n '1207': ['US', '1', 'VolumetricPresentationInputNumber'],\n '1208': ['CS', '1', 'ImageVolumeGeometry'],\n '1209': ['UI', '1', 'VolumetricPresentationInputSetUID'],\n '120A': ['SQ', '1', 'VolumetricPresentationInputSetSequence'],\n '120B': ['CS', '1', 'GlobalCrop'],\n '120C': ['US', '1-n', 'GlobalCroppingSpecificationIndex'],\n '120D': ['CS', '1', 'RenderingMethod'],\n '1301': ['SQ', '1', 'VolumeCroppingSequence'],\n '1302': ['CS', '1', 'VolumeCroppingMethod'],\n '1303': ['FD', '6', 'BoundingBoxCrop'],\n '1304': ['SQ', '1', 'ObliqueCroppingPlaneSequence'],\n '1305': ['FD', '4', 'Plane'],\n '1306': ['FD', '3', 'PlaneNormal'],\n '1309': ['US', '1', 'CroppingSpecificationNumber'],\n '1501': ['CS', '1', 'MultiPlanarReconstructionStyle'],\n '1502': ['CS', '1', 'MPRThicknessType'],\n '1503': ['FD', '1', 'MPRSlabThickness'],\n '1505': ['FD', '3', 'MPRTopLeftHandCorner'],\n '1507': ['FD', '3', 'MPRViewWidthDirection'],\n '1508': ['FD', '1', 'MPRViewWidth'],\n '150C': ['UL', '1', 'NumberOfVolumetricCurvePoints'],\n '150D': ['OD', '1', 'VolumetricCurvePoints'],\n '1511': ['FD', '3', 'MPRViewHeightDirection'],\n '1512': ['FD', '1', 'MPRViewHeight'],\n '1602': ['CS', '1', 'RenderProjection'],\n '1603': ['FD', '3', 'ViewpointPosition'],\n '1604': ['FD', '3', 'ViewpointLookAtPoint'],\n '1605': ['FD', '3', 'ViewpointUpDirection'],\n '1606': ['FD', '6', 'RenderFieldOfView'],\n '1607': ['FD', '1', 'SamplingStepSize'],\n '1701': ['CS', '1', 'ShadingStyle'],\n '1702': ['FD', '1', 'AmbientReflectionIntensity'],\n '1703': ['FD', '3', 'LightDirection'],\n '1704': ['FD', '1', 'DiffuseReflectionIntensity'],\n '1705': ['FD', '1', 'SpecularReflectionIntensity'],\n '1706': ['FD', '1', 'Shininess'],\n '1801': ['SQ', '1', 'PresentationStateClassificationComponentSequence'],\n '1802': ['CS', '1', 'ComponentType'],\n '1803': ['SQ', '1', 'ComponentInputSequence'],\n '1804': ['US', '1', 'VolumetricPresentationInputIndex'],\n '1805': ['SQ', '1', 'PresentationStateCompositorComponentSequence'],\n '1806': ['SQ', '1', 'WeightingTransferFunctionSequence'],\n '1807': ['US', '3', 'WeightingLookupTableDescriptor'],\n '1808': ['OB', '1', 'WeightingLookupTableData'],\n '1901': ['SQ', '1', 'VolumetricAnnotationSequence'],\n '1903': ['SQ', '1', 'ReferencedStructuredContextSequence'],\n '1904': ['UI', '1', 'ReferencedContentItem'],\n '1905': ['SQ', '1', 'VolumetricPresentationInputAnnotationSequence'],\n '1907': ['CS', '1', 'AnnotationClipping'],\n '1A01': ['CS', '1', 'PresentationAnimationStyle'],\n '1A03': ['FD', '1', 'RecommendedAnimationRate'],\n '1A04': ['SQ', '1', 'AnimationCurveSequence'],\n '1A05': ['FD', '1', 'AnimationStepSize'],\n '1A06': ['FD', '1', 'SwivelRange'],\n '1A07': ['OD', '1', 'VolumetricCurveUpDirections'],\n '1A08': ['SQ', '1', 'VolumeStreamSequence'],\n '1A09': ['LO', '1', 'RGBATransferFunctionDescription'],\n '1B01': ['SQ', '1', 'AdvancedBlendingSequence'],\n '1B02': ['US', '1', 'BlendingInputNumber'],\n '1B03': ['SQ', '1', 'BlendingDisplayInputSequence'],\n '1B04': ['SQ', '1', 'BlendingDisplaySequence'],\n '1B06': ['CS', '1', 'BlendingMode'],\n '1B07': ['CS', '1', 'TimeSeriesBlending'],\n '1B08': ['CS', '1', 'GeometryForDisplay'],\n '1B11': ['SQ', '1', 'ThresholdSequence'],\n '1B12': ['SQ', '1', 'ThresholdValueSequence'],\n '1B13': ['CS', '1', 'ThresholdType'],\n '1B14': ['FD', '1', 'ThresholdValue']\n },\n '0072': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'HangingProtocolName'],\n '0004': ['LO', '1', 'HangingProtocolDescription'],\n '0006': ['CS', '1', 'HangingProtocolLevel'],\n '0008': ['LO', '1', 'HangingProtocolCreator'],\n '000A': ['DT', '1', 'HangingProtocolCreationDateTime'],\n '000C': ['SQ', '1', 'HangingProtocolDefinitionSequence'],\n '000E': ['SQ', '1', 'HangingProtocolUserIdentificationCodeSequence'],\n '0010': ['LO', '1', 'HangingProtocolUserGroupName'],\n '0012': ['SQ', '1', 'SourceHangingProtocolSequence'],\n '0014': ['US', '1', 'NumberOfPriorsReferenced'],\n '0020': ['SQ', '1', 'ImageSetsSequence'],\n '0022': ['SQ', '1', 'ImageSetSelectorSequence'],\n '0024': ['CS', '1', 'ImageSetSelectorUsageFlag'],\n '0026': ['AT', '1', 'SelectorAttribute'],\n '0028': ['US', '1', 'SelectorValueNumber'],\n '0030': ['SQ', '1', 'TimeBasedImageSetsSequence'],\n '0032': ['US', '1', 'ImageSetNumber'],\n '0034': ['CS', '1', 'ImageSetSelectorCategory'],\n '0038': ['US', '2', 'RelativeTime'],\n '003A': ['CS', '1', 'RelativeTimeUnits'],\n '003C': ['SS', '2', 'AbstractPriorValue'],\n '003E': ['SQ', '1', 'AbstractPriorCodeSequence'],\n '0040': ['LO', '1', 'ImageSetLabel'],\n '0050': ['CS', '1', 'SelectorAttributeVR'],\n '0052': ['AT', '1-n', 'SelectorSequencePointer'],\n '0054': ['LO', '1-n', 'SelectorSequencePointerPrivateCreator'],\n '0056': ['LO', '1', 'SelectorAttributePrivateCreator'],\n '005E': ['AE', '1-n', 'SelectorAEValue'],\n '005F': ['AS', '1-n', 'SelectorASValue'],\n '0060': ['AT', '1-n', 'SelectorATValue'],\n '0061': ['DA', '1-n', 'SelectorDAValue'],\n '0062': ['CS', '1-n', 'SelectorCSValue'],\n '0063': ['DT', '1-n', 'SelectorDTValue'],\n '0064': ['IS', '1-n', 'SelectorISValue'],\n '0065': ['OB', '1', 'SelectorOBValue'],\n '0066': ['LO', '1-n', 'SelectorLOValue'],\n '0067': ['OF', '1', 'SelectorOFValue'],\n '0068': ['LT', '1', 'SelectorLTValue'],\n '0069': ['OW', '1', 'SelectorOWValue'],\n '006A': ['PN', '1-n', 'SelectorPNValue'],\n '006B': ['TM', '1-n', 'SelectorTMValue'],\n '006C': ['SH', '1-n', 'SelectorSHValue'],\n '006D': ['UN', '1', 'SelectorUNValue'],\n '006E': ['ST', '1', 'SelectorSTValue'],\n '006F': ['UC', '1-n', 'SelectorUCValue'],\n '0070': ['UT', '1', 'SelectorUTValue'],\n '0071': ['UR', '1', 'SelectorURValue'],\n '0072': ['DS', '1-n', 'SelectorDSValue'],\n '0073': ['OD', '1', 'SelectorODValue'],\n '0074': ['FD', '1-n', 'SelectorFDValue'],\n '0075': ['OL', '1', 'SelectorOLValue'],\n '0076': ['FL', '1-n', 'SelectorFLValue'],\n '0078': ['UL', '1-n', 'SelectorULValue'],\n '007A': ['US', '1-n', 'SelectorUSValue'],\n '007C': ['SL', '1-n', 'SelectorSLValue'],\n '007E': ['SS', '1-n', 'SelectorSSValue'],\n '007F': ['UI', '1-n', 'SelectorUIValue'],\n '0080': ['SQ', '1', 'SelectorCodeSequenceValue'],\n '0081': ['OV', '1', 'SelectorOVValue'],\n '0082': ['SV', '1-n', 'SelectorSVValue'],\n '0083': ['UV', '1-n', 'SelectorUVValue'],\n '0100': ['US', '1', 'NumberOfScreens'],\n '0102': ['SQ', '1', 'NominalScreenDefinitionSequence'],\n '0104': ['US', '1', 'NumberOfVerticalPixels'],\n '0106': ['US', '1', 'NumberOfHorizontalPixels'],\n '0108': ['FD', '4', 'DisplayEnvironmentSpatialPosition'],\n '010A': ['US', '1', 'ScreenMinimumGrayscaleBitDepth'],\n '010C': ['US', '1', 'ScreenMinimumColorBitDepth'],\n '010E': ['US', '1', 'ApplicationMaximumRepaintTime'],\n '0200': ['SQ', '1', 'DisplaySetsSequence'],\n '0202': ['US', '1', 'DisplaySetNumber'],\n '0203': ['LO', '1', 'DisplaySetLabel'],\n '0204': ['US', '1', 'DisplaySetPresentationGroup'],\n '0206': ['LO', '1', 'DisplaySetPresentationGroupDescription'],\n '0208': ['CS', '1', 'PartialDataDisplayHandling'],\n '0210': ['SQ', '1', 'SynchronizedScrollingSequence'],\n '0212': ['US', '2-n', 'DisplaySetScrollingGroup'],\n '0214': ['SQ', '1', 'NavigationIndicatorSequence'],\n '0216': ['US', '1', 'NavigationDisplaySet'],\n '0218': ['US', '1-n', 'ReferenceDisplaySets'],\n '0300': ['SQ', '1', 'ImageBoxesSequence'],\n '0302': ['US', '1', 'ImageBoxNumber'],\n '0304': ['CS', '1', 'ImageBoxLayoutType'],\n '0306': ['US', '1', 'ImageBoxTileHorizontalDimension'],\n '0308': ['US', '1', 'ImageBoxTileVerticalDimension'],\n '0310': ['CS', '1', 'ImageBoxScrollDirection'],\n '0312': ['CS', '1', 'ImageBoxSmallScrollType'],\n '0314': ['US', '1', 'ImageBoxSmallScrollAmount'],\n '0316': ['CS', '1', 'ImageBoxLargeScrollType'],\n '0318': ['US', '1', 'ImageBoxLargeScrollAmount'],\n '0320': ['US', '1', 'ImageBoxOverlapPriority'],\n '0330': ['FD', '1', 'CineRelativeToRealTime'],\n '0400': ['SQ', '1', 'FilterOperationsSequence'],\n '0402': ['CS', '1', 'FilterByCategory'],\n '0404': ['CS', '1', 'FilterByAttributePresence'],\n '0406': ['CS', '1', 'FilterByOperator'],\n '0420': ['US', '3', 'StructuredDisplayBackgroundCIELabValue'],\n '0421': ['US', '3', 'EmptyImageBoxCIELabValue'],\n '0422': ['SQ', '1', 'StructuredDisplayImageBoxSequence'],\n '0424': ['SQ', '1', 'StructuredDisplayTextBoxSequence'],\n '0427': ['SQ', '1', 'ReferencedFirstFrameSequence'],\n '0430': ['SQ', '1', 'ImageBoxSynchronizationSequence'],\n '0432': ['US', '2-n', 'SynchronizedImageBoxList'],\n '0434': ['CS', '1', 'TypeOfSynchronization'],\n '0500': ['CS', '1', 'BlendingOperationType'],\n '0510': ['CS', '1', 'ReformattingOperationType'],\n '0512': ['FD', '1', 'ReformattingThickness'],\n '0514': ['FD', '1', 'ReformattingInterval'],\n '0516': ['CS', '1', 'ReformattingOperationInitialViewDirection'],\n '0520': ['CS', '1-n', 'ThreeDRenderingType'],\n '0600': ['SQ', '1', 'SortingOperationsSequence'],\n '0602': ['CS', '1', 'SortByCategory'],\n '0604': ['CS', '1', 'SortingDirection'],\n '0700': ['CS', '2', 'DisplaySetPatientOrientation'],\n '0702': ['CS', '1', 'VOIType'],\n '0704': ['CS', '1', 'PseudoColorType'],\n '0705': ['SQ', '1', 'PseudoColorPaletteInstanceReferenceSequence'],\n '0706': ['CS', '1', 'ShowGrayscaleInverted'],\n '0710': ['CS', '1', 'ShowImageTrueSizeFlag'],\n '0712': ['CS', '1', 'ShowGraphicAnnotationFlag'],\n '0714': ['CS', '1', 'ShowPatientDemographicsFlag'],\n '0716': ['CS', '1', 'ShowAcquisitionTechniquesFlag'],\n '0717': ['CS', '1', 'DisplaySetHorizontalJustification'],\n '0718': ['CS', '1', 'DisplaySetVerticalJustification']\n },\n '0074': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0120': ['FD', '1', 'ContinuationStartMeterset'],\n '0121': ['FD', '1', 'ContinuationEndMeterset'],\n '1000': ['CS', '1', 'ProcedureStepState'],\n '1002': ['SQ', '1', 'ProcedureStepProgressInformationSequence'],\n '1004': ['DS', '1', 'ProcedureStepProgress'],\n '1006': ['ST', '1', 'ProcedureStepProgressDescription'],\n '1007': ['SQ', '1', 'ProcedureStepProgressParametersSequence'],\n '1008': ['SQ', '1', 'ProcedureStepCommunicationsURISequence'],\n '100A': ['UR', '1', 'ContactURI'],\n '100C': ['LO', '1', 'ContactDisplayName'],\n '100E': ['SQ', '1', 'ProcedureStepDiscontinuationReasonCodeSequence'],\n '1020': ['SQ', '1', 'BeamTaskSequence'],\n '1022': ['CS', '1', 'BeamTaskType'],\n '1024': ['IS', '1', 'BeamOrderIndexTrial'],\n '1025': ['CS', '1', 'AutosequenceFlag'],\n '1026': ['FD', '1', 'TableTopVerticalAdjustedPosition'],\n '1027': ['FD', '1', 'TableTopLongitudinalAdjustedPosition'],\n '1028': ['FD', '1', 'TableTopLateralAdjustedPosition'],\n '102A': ['FD', '1', 'PatientSupportAdjustedAngle'],\n '102B': ['FD', '1', 'TableTopEccentricAdjustedAngle'],\n '102C': ['FD', '1', 'TableTopPitchAdjustedAngle'],\n '102D': ['FD', '1', 'TableTopRollAdjustedAngle'],\n '1030': ['SQ', '1', 'DeliveryVerificationImageSequence'],\n '1032': ['CS', '1', 'VerificationImageTiming'],\n '1034': ['CS', '1', 'DoubleExposureFlag'],\n '1036': ['CS', '1', 'DoubleExposureOrdering'],\n '1038': ['DS', '1', 'DoubleExposureMetersetTrial'],\n '103A': ['DS', '4', 'DoubleExposureFieldDeltaTrial'],\n '1040': ['SQ', '1', 'RelatedReferenceRTImageSequence'],\n '1042': ['SQ', '1', 'GeneralMachineVerificationSequence'],\n '1044': ['SQ', '1', 'ConventionalMachineVerificationSequence'],\n '1046': ['SQ', '1', 'IonMachineVerificationSequence'],\n '1048': ['SQ', '1', 'FailedAttributesSequence'],\n '104A': ['SQ', '1', 'OverriddenAttributesSequence'],\n '104C': ['SQ', '1', 'ConventionalControlPointVerificationSequence'],\n '104E': ['SQ', '1', 'IonControlPointVerificationSequence'],\n '1050': ['SQ', '1', 'AttributeOccurrenceSequence'],\n '1052': ['AT', '1', 'AttributeOccurrencePointer'],\n '1054': ['UL', '1', 'AttributeItemSelector'],\n '1056': ['LO', '1', 'AttributeOccurrencePrivateCreator'],\n '1057': ['IS', '1-n', 'SelectorSequencePointerItems'],\n '1200': ['CS', '1', 'ScheduledProcedureStepPriority'],\n '1202': ['LO', '1', 'WorklistLabel'],\n '1204': ['LO', '1', 'ProcedureStepLabel'],\n '1210': ['SQ', '1', 'ScheduledProcessingParametersSequence'],\n '1212': ['SQ', '1', 'PerformedProcessingParametersSequence'],\n '1216': ['SQ', '1', 'UnifiedProcedureStepPerformedProcedureSequence'],\n '1220': ['SQ', '1', 'RelatedProcedureStepSequence'],\n '1222': ['LO', '1', 'ProcedureStepRelationshipType'],\n '1224': ['SQ', '1', 'ReplacedProcedureStepSequence'],\n '1230': ['LO', '1', 'DeletionLock'],\n '1234': ['AE', '1', 'ReceivingAE'],\n '1236': ['AE', '1', 'RequestingAE'],\n '1238': ['LT', '1', 'ReasonForCancellation'],\n '1242': ['CS', '1', 'SCPStatus'],\n '1244': ['CS', '1', 'SubscriptionListStatus'],\n '1246': ['CS', '1', 'UnifiedProcedureStepListStatus'],\n '1324': ['UL', '1', 'BeamOrderIndex'],\n '1338': ['FD', '1', 'DoubleExposureMeterset'],\n '133A': ['FD', '4', 'DoubleExposureFieldDelta'],\n '1401': ['SQ', '1', 'BrachyTaskSequence'],\n '1402': ['DS', '1', 'ContinuationStartTotalReferenceAirKerma'],\n '1403': ['DS', '1', 'ContinuationEndTotalReferenceAirKerma'],\n '1404': ['IS', '1', 'ContinuationPulseNumber'],\n '1405': ['SQ', '1', 'ChannelDeliveryOrderSequence'],\n '1406': ['IS', '1', 'ReferencedChannelNumber'],\n '1407': ['DS', '1', 'StartCumulativeTimeWeight'],\n '1408': ['DS', '1', 'EndCumulativeTimeWeight'],\n '1409': ['SQ', '1', 'OmittedChannelSequence'],\n '140A': ['CS', '1', 'ReasonForChannelOmission'],\n '140B': ['LO', '1', 'ReasonForChannelOmissionDescription'],\n '140C': ['IS', '1', 'ChannelDeliveryOrderIndex'],\n '140D': ['SQ', '1', 'ChannelDeliveryContinuationSequence'],\n '140E': ['SQ', '1', 'OmittedApplicationSetupSequence']\n },\n '0076': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['LO', '1', 'ImplantAssemblyTemplateName'],\n '0003': ['LO', '1', 'ImplantAssemblyTemplateIssuer'],\n '0006': ['LO', '1', 'ImplantAssemblyTemplateVersion'],\n '0008': ['SQ', '1', 'ReplacedImplantAssemblyTemplateSequence'],\n '000A': ['CS', '1', 'ImplantAssemblyTemplateType'],\n '000C': ['SQ', '1', 'OriginalImplantAssemblyTemplateSequence'],\n '000E': ['SQ', '1', 'DerivationImplantAssemblyTemplateSequence'],\n '0010': ['SQ', '1', 'ImplantAssemblyTemplateTargetAnatomySequence'],\n '0020': ['SQ', '1', 'ProcedureTypeCodeSequence'],\n '0030': ['LO', '1', 'SurgicalTechnique'],\n '0032': ['SQ', '1', 'ComponentTypesSequence'],\n '0034': ['SQ', '1', 'ComponentTypeCodeSequence'],\n '0036': ['CS', '1', 'ExclusiveComponentType'],\n '0038': ['CS', '1', 'MandatoryComponentType'],\n '0040': ['SQ', '1', 'ComponentSequence'],\n '0055': ['US', '1', 'ComponentID'],\n '0060': ['SQ', '1', 'ComponentAssemblySequence'],\n '0070': ['US', '1', 'Component1ReferencedID'],\n '0080': ['US', '1', 'Component1ReferencedMatingFeatureSetID'],\n '0090': ['US', '1', 'Component1ReferencedMatingFeatureID'],\n '00A0': ['US', '1', 'Component2ReferencedID'],\n '00B0': ['US', '1', 'Component2ReferencedMatingFeatureSetID'],\n '00C0': ['US', '1', 'Component2ReferencedMatingFeatureID']\n },\n '0078': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['LO', '1', 'ImplantTemplateGroupName'],\n '0010': ['ST', '1', 'ImplantTemplateGroupDescription'],\n '0020': ['LO', '1', 'ImplantTemplateGroupIssuer'],\n '0024': ['LO', '1', 'ImplantTemplateGroupVersion'],\n '0026': ['SQ', '1', 'ReplacedImplantTemplateGroupSequence'],\n '0028': ['SQ', '1', 'ImplantTemplateGroupTargetAnatomySequence'],\n '002A': ['SQ', '1', 'ImplantTemplateGroupMembersSequence'],\n '002E': ['US', '1', 'ImplantTemplateGroupMemberID'],\n '0050': ['FD', '3', 'ThreeDImplantTemplateGroupMemberMatchingPoint'],\n '0060': ['FD', '9', 'ThreeDImplantTemplateGroupMemberMatchingAxes'],\n '0070': ['SQ', '1', 'ImplantTemplateGroupMemberMatching2DCoordinatesSequence'],\n '0090': ['FD', '2', 'TwoDImplantTemplateGroupMemberMatchingPoint'],\n '00A0': ['FD', '4', 'TwoDImplantTemplateGroupMemberMatchingAxes'],\n '00B0': ['SQ', '1', 'ImplantTemplateGroupVariationDimensionSequence'],\n '00B2': ['LO', '1', 'ImplantTemplateGroupVariationDimensionName'],\n '00B4': ['SQ', '1', 'ImplantTemplateGroupVariationDimensionRankSequence'],\n '00B6': ['US', '1', 'ReferencedImplantTemplateGroupMemberID'],\n '00B8': ['US', '1', 'ImplantTemplateGroupVariationDimensionRank']\n },\n '0080': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'SurfaceScanAcquisitionTypeCodeSequence'],\n '0002': ['SQ', '1', 'SurfaceScanModeCodeSequence'],\n '0003': ['SQ', '1', 'RegistrationMethodCodeSequence'],\n '0004': ['FD', '1', 'ShotDurationTime'],\n '0005': ['FD', '1', 'ShotOffsetTime'],\n '0006': ['US', '1-n', 'SurfacePointPresentationValueData'],\n '0007': ['US', '3-3n', 'SurfacePointColorCIELabValueData'],\n '0008': ['SQ', '1', 'UVMappingSequence'],\n '0009': ['SH', '1', 'TextureLabel'],\n '0010': ['OF', '1', 'UValueData'],\n '0011': ['OF', '1', 'VValueData'],\n '0012': ['SQ', '1', 'ReferencedTextureSequence'],\n '0013': ['SQ', '1', 'ReferencedSurfaceDataSequence']\n },\n '0082': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'AssessmentSummary'],\n '0003': ['UT', '1', 'AssessmentSummaryDescription'],\n '0004': ['SQ', '1', 'AssessedSOPInstanceSequence'],\n '0005': ['SQ', '1', 'ReferencedComparisonSOPInstanceSequence'],\n '0006': ['UL', '1', 'NumberOfAssessmentObservations'],\n '0007': ['SQ', '1', 'AssessmentObservationsSequence'],\n '0008': ['CS', '1', 'ObservationSignificance'],\n '000A': ['UT', '1', 'ObservationDescription'],\n '000C': ['SQ', '1', 'StructuredConstraintObservationSequence'],\n '0010': ['SQ', '1', 'AssessedAttributeValueSequence'],\n '0016': ['LO', '1', 'AssessmentSetID'],\n '0017': ['SQ', '1', 'AssessmentRequesterSequence'],\n '0018': ['LO', '1', 'SelectorAttributeName'],\n '0019': ['LO', '1', 'SelectorAttributeKeyword'],\n '0021': ['SQ', '1', 'AssessmentTypeCodeSequence'],\n '0022': ['SQ', '1', 'ObservationBasisCodeSequence'],\n '0023': ['LO', '1', 'AssessmentLabel'],\n '0032': ['CS', '1', 'ConstraintType'],\n '0033': ['UT', '1', 'SpecificationSelectionGuidance'],\n '0034': ['SQ', '1', 'ConstraintValueSequence'],\n '0035': ['SQ', '1', 'RecommendedDefaultValueSequence'],\n '0036': ['CS', '1', 'ConstraintViolationSignificance'],\n '0037': ['UT', '1', 'ConstraintViolationCondition'],\n '0038': ['CS', '1', 'ModifiableConstraintFlag']\n },\n '0088': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0130': ['SH', '1', 'StorageMediaFileSetID'],\n '0140': ['UI', '1', 'StorageMediaFileSetUID'],\n '0200': ['SQ', '1', 'IconImageSequence'],\n '0904': ['LO', '1', 'TopicTitle'],\n '0906': ['ST', '1', 'TopicSubject'],\n '0910': ['LO', '1', 'TopicAuthor'],\n '0912': ['LO', '1-32', 'TopicKeywords']\n },\n '0100': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0410': ['CS', '1', 'SOPInstanceStatus'],\n '0420': ['DT', '1', 'SOPAuthorizationDateTime'],\n '0424': ['LT', '1', 'SOPAuthorizationComment'],\n '0426': ['LO', '1', 'AuthorizationEquipmentCertificationNumber']\n },\n '0400': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0005': ['US', '1', 'MACIDNumber'],\n '0010': ['UI', '1', 'MACCalculationTransferSyntaxUID'],\n '0015': ['CS', '1', 'MACAlgorithm'],\n '0020': ['AT', '1-n', 'DataElementsSigned'],\n '0100': ['UI', '1', 'DigitalSignatureUID'],\n '0105': ['DT', '1', 'DigitalSignatureDateTime'],\n '0110': ['CS', '1', 'CertificateType'],\n '0115': ['OB', '1', 'CertificateOfSigner'],\n '0120': ['OB', '1', 'Signature'],\n '0305': ['CS', '1', 'CertifiedTimestampType'],\n '0310': ['OB', '1', 'CertifiedTimestamp'],\n '0315': ['FL', '1', ''],\n '0401': ['SQ', '1', 'DigitalSignaturePurposeCodeSequence'],\n '0402': ['SQ', '1', 'ReferencedDigitalSignatureSequence'],\n '0403': ['SQ', '1', 'ReferencedSOPInstanceMACSequence'],\n '0404': ['OB', '1', 'MAC'],\n '0500': ['SQ', '1', 'EncryptedAttributesSequence'],\n '0510': ['UI', '1', 'EncryptedContentTransferSyntaxUID'],\n '0520': ['OB', '1', 'EncryptedContent'],\n '0550': ['SQ', '1', 'ModifiedAttributesSequence'],\n '0551': ['SQ', '1', 'NonconformingModifiedAttributesSequence'],\n '0552': ['OB', '1', 'NonconformingDataElementValue'],\n '0561': ['SQ', '1', 'OriginalAttributesSequence'],\n '0562': ['DT', '1', 'AttributeModificationDateTime'],\n '0563': ['LO', '1', 'ModifyingSystem'],\n '0564': ['LO', '1', 'SourceOfPreviousValues'],\n '0565': ['CS', '1', 'ReasonForTheAttributeModification'],\n '0600': ['CS', '1', 'InstanceOriginStatus']\n },\n '1000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '3', 'EscapeTriplet'],\n '0011': ['US', '3', 'RunLengthTriplet'],\n '0012': ['US', '1', 'HuffmanTableSize'],\n '0013': ['US', '3', 'HuffmanTableTriplet'],\n '0014': ['US', '1', 'ShiftTableSize'],\n '0015': ['US', '3', 'ShiftTableTriplet']\n },\n '1010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['US', '1-n', 'ZonalMap']\n },\n '2000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['IS', '1', 'NumberOfCopies'],\n '001E': ['SQ', '1', 'PrinterConfigurationSequence'],\n '0020': ['CS', '1', 'PrintPriority'],\n '0030': ['CS', '1', 'MediumType'],\n '0040': ['CS', '1', 'FilmDestination'],\n '0050': ['LO', '1', 'FilmSessionLabel'],\n '0060': ['IS', '1', 'MemoryAllocation'],\n '0061': ['IS', '1', 'MaximumMemoryAllocation'],\n '0062': ['CS', '1', 'ColorImagePrintingFlag'],\n '0063': ['CS', '1', 'CollationFlag'],\n '0065': ['CS', '1', 'AnnotationFlag'],\n '0067': ['CS', '1', 'ImageOverlayFlag'],\n '0069': ['CS', '1', 'PresentationLUTFlag'],\n '006A': ['CS', '1', 'ImageBoxPresentationLUTFlag'],\n '00A0': ['US', '1', 'MemoryBitDepth'],\n '00A1': ['US', '1', 'PrintingBitDepth'],\n '00A2': ['SQ', '1', 'MediaInstalledSequence'],\n '00A4': ['SQ', '1', 'OtherMediaAvailableSequence'],\n '00A8': ['SQ', '1', 'SupportedImageDisplayFormatsSequence'],\n '0500': ['SQ', '1', 'ReferencedFilmBoxSequence'],\n '0510': ['SQ', '1', 'ReferencedStoredPrintSequence']\n },\n '2010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['ST', '1', 'ImageDisplayFormat'],\n '0030': ['CS', '1', 'AnnotationDisplayFormatID'],\n '0040': ['CS', '1', 'FilmOrientation'],\n '0050': ['CS', '1', 'FilmSizeID'],\n '0052': ['CS', '1', 'PrinterResolutionID'],\n '0054': ['CS', '1', 'DefaultPrinterResolutionID'],\n '0060': ['CS', '1', 'MagnificationType'],\n '0080': ['CS', '1', 'SmoothingType'],\n '00A6': ['CS', '1', 'DefaultMagnificationType'],\n '00A7': ['CS', '1-n', 'OtherMagnificationTypesAvailable'],\n '00A8': ['CS', '1', 'DefaultSmoothingType'],\n '00A9': ['CS', '1-n', 'OtherSmoothingTypesAvailable'],\n '0100': ['CS', '1', 'BorderDensity'],\n '0110': ['CS', '1', 'EmptyImageDensity'],\n '0120': ['US', '1', 'MinDensity'],\n '0130': ['US', '1', 'MaxDensity'],\n '0140': ['CS', '1', 'Trim'],\n '0150': ['ST', '1', 'ConfigurationInformation'],\n '0152': ['LT', '1', 'ConfigurationInformationDescription'],\n '0154': ['IS', '1', 'MaximumCollatedFilms'],\n '015E': ['US', '1', 'Illumination'],\n '0160': ['US', '1', 'ReflectedAmbientLight'],\n '0376': ['DS', '2', 'PrinterPixelSpacing'],\n '0500': ['SQ', '1', 'ReferencedFilmSessionSequence'],\n '0510': ['SQ', '1', 'ReferencedImageBoxSequence'],\n '0520': ['SQ', '1', 'ReferencedBasicAnnotationBoxSequence']\n },\n '2020': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1', 'ImageBoxPosition'],\n '0020': ['CS', '1', 'Polarity'],\n '0030': ['DS', '1', 'RequestedImageSize'],\n '0040': ['CS', '1', 'RequestedDecimateCropBehavior'],\n '0050': ['CS', '1', 'RequestedResolutionID'],\n '00A0': ['CS', '1', 'RequestedImageSizeFlag'],\n '00A2': ['CS', '1', 'DecimateCropResult'],\n '0110': ['SQ', '1', 'BasicGrayscaleImageSequence'],\n '0111': ['SQ', '1', 'BasicColorImageSequence'],\n '0130': ['SQ', '1', 'ReferencedImageOverlayBoxSequence'],\n '0140': ['SQ', '1', 'ReferencedVOILUTBoxSequence']\n },\n '2030': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1', 'AnnotationPosition'],\n '0020': ['LO', '1', 'TextString']\n },\n '2040': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'ReferencedOverlayPlaneSequence'],\n '0011': ['US', '1-99', 'ReferencedOverlayPlaneGroups'],\n '0020': ['SQ', '1', 'OverlayPixelDataSequence'],\n '0060': ['CS', '1', 'OverlayMagnificationType'],\n '0070': ['CS', '1', 'OverlaySmoothingType'],\n '0072': ['CS', '1', 'OverlayOrImageMagnification'],\n '0074': ['US', '1', 'MagnifyToNumberOfColumns'],\n '0080': ['CS', '1', 'OverlayForegroundDensity'],\n '0082': ['CS', '1', 'OverlayBackgroundDensity'],\n '0090': ['CS', '1', 'OverlayMode'],\n '0100': ['CS', '1', 'ThresholdDensity'],\n '0500': ['SQ', '1', 'ReferencedImageBoxSequenceRetired']\n },\n '2050': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'PresentationLUTSequence'],\n '0020': ['CS', '1', 'PresentationLUTShape'],\n '0500': ['SQ', '1', 'ReferencedPresentationLUTSequence']\n },\n '2100': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SH', '1', 'PrintJobID'],\n '0020': ['CS', '1', 'ExecutionStatus'],\n '0030': ['CS', '1', 'ExecutionStatusInfo'],\n '0040': ['DA', '1', 'CreationDate'],\n '0050': ['TM', '1', 'CreationTime'],\n '0070': ['AE', '1', 'Originator'],\n '0140': ['AE', '1', 'DestinationAE'],\n '0160': ['SH', '1', 'OwnerID'],\n '0170': ['IS', '1', 'NumberOfFilms'],\n '0500': ['SQ', '1', 'ReferencedPrintJobSequencePullStoredPrint']\n },\n '2110': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['CS', '1', 'PrinterStatus'],\n '0020': ['CS', '1', 'PrinterStatusInfo'],\n '0030': ['LO', '1', 'PrinterName'],\n '0099': ['SH', '1', 'PrintQueueID']\n },\n '2120': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['CS', '1', 'QueueStatus'],\n '0050': ['SQ', '1', 'PrintJobDescriptionSequence'],\n '0070': ['SQ', '1', 'ReferencedPrintJobSequence']\n },\n '2130': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'PrintManagementCapabilitiesSequence'],\n '0015': ['SQ', '1', 'PrinterCharacteristicsSequence'],\n '0030': ['SQ', '1', 'FilmBoxContentSequence'],\n '0040': ['SQ', '1', 'ImageBoxContentSequence'],\n '0050': ['SQ', '1', 'AnnotationContentSequence'],\n '0060': ['SQ', '1', 'ImageOverlayBoxContentSequence'],\n '0080': ['SQ', '1', 'PresentationLUTContentSequence'],\n '00A0': ['SQ', '1', 'ProposedStudySequence'],\n '00C0': ['SQ', '1', 'OriginalImageSequence']\n },\n '2200': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'LabelUsingInformationExtractedFromInstances'],\n '0002': ['UT', '1', 'LabelText'],\n '0003': ['CS', '1', 'LabelStyleSelection'],\n '0004': ['LT', '1', 'MediaDisposition'],\n '0005': ['LT', '1', 'BarcodeValue'],\n '0006': ['CS', '1', 'BarcodeSymbology'],\n '0007': ['CS', '1', 'AllowMediaSplitting'],\n '0008': ['CS', '1', 'IncludeNonDICOMObjects'],\n '0009': ['CS', '1', 'IncludeDisplayApplication'],\n '000A': ['CS', '1', 'PreserveCompositeInstancesAfterMediaCreation'],\n '000B': ['US', '1', 'TotalNumberOfPiecesOfMediaCreated'],\n '000C': ['LO', '1', 'RequestedMediaApplicationProfile'],\n '000D': ['SQ', '1', 'ReferencedStorageMediaSequence'],\n '000E': ['AT', '1-n', 'FailureAttributes'],\n '000F': ['CS', '1', 'AllowLossyCompression'],\n '0020': ['CS', '1', 'RequestPriority']\n },\n '3002': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'RTImageLabel'],\n '0003': ['LO', '1', 'RTImageName'],\n '0004': ['ST', '1', 'RTImageDescription'],\n '000A': ['CS', '1', 'ReportedValuesOrigin'],\n '000C': ['CS', '1', 'RTImagePlane'],\n '000D': ['DS', '3', 'XRayImageReceptorTranslation'],\n '000E': ['DS', '1', 'XRayImageReceptorAngle'],\n '0010': ['DS', '6', 'RTImageOrientation'],\n '0011': ['DS', '2', 'ImagePlanePixelSpacing'],\n '0012': ['DS', '2', 'RTImagePosition'],\n '0020': ['SH', '1', 'RadiationMachineName'],\n '0022': ['DS', '1', 'RadiationMachineSAD'],\n '0024': ['DS', '1', 'RadiationMachineSSD'],\n '0026': ['DS', '1', 'RTImageSID'],\n '0028': ['DS', '1', 'SourceToReferenceObjectDistance'],\n '0029': ['IS', '1', 'FractionNumber'],\n '0030': ['SQ', '1', 'ExposureSequence'],\n '0032': ['DS', '1', 'MetersetExposure'],\n '0034': ['DS', '4', 'DiaphragmPosition'],\n '0040': ['SQ', '1', 'FluenceMapSequence'],\n '0041': ['CS', '1', 'FluenceDataSource'],\n '0042': ['DS', '1', 'FluenceDataScale'],\n '0050': ['SQ', '1', 'PrimaryFluenceModeSequence'],\n '0051': ['CS', '1', 'FluenceMode'],\n '0052': ['SH', '1', 'FluenceModeID']\n },\n '3004': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'DVHType'],\n '0002': ['CS', '1', 'DoseUnits'],\n '0004': ['CS', '1', 'DoseType'],\n '0005': ['CS', '1', 'SpatialTransformOfDose'],\n '0006': ['LO', '1', 'DoseComment'],\n '0008': ['DS', '3', 'NormalizationPoint'],\n '000A': ['CS', '1', 'DoseSummationType'],\n '000C': ['DS', '2-n', 'GridFrameOffsetVector'],\n '000E': ['DS', '1', 'DoseGridScaling'],\n '0010': ['SQ', '1', 'RTDoseROISequence'],\n '0012': ['DS', '1', 'DoseValue'],\n '0014': ['CS', '1-3', 'TissueHeterogeneityCorrection'],\n '0040': ['DS', '3', 'DVHNormalizationPoint'],\n '0042': ['DS', '1', 'DVHNormalizationDoseValue'],\n '0050': ['SQ', '1', 'DVHSequence'],\n '0052': ['DS', '1', 'DVHDoseScaling'],\n '0054': ['CS', '1', 'DVHVolumeUnits'],\n '0056': ['IS', '1', 'DVHNumberOfBins'],\n '0058': ['DS', '2-2n', 'DVHData'],\n '0060': ['SQ', '1', 'DVHReferencedROISequence'],\n '0062': ['CS', '1', 'DVHROIContributionType'],\n '0070': ['DS', '1', 'DVHMinimumDose'],\n '0072': ['DS', '1', 'DVHMaximumDose'],\n '0074': ['DS', '1', 'DVHMeanDose']\n },\n '3006': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'StructureSetLabel'],\n '0004': ['LO', '1', 'StructureSetName'],\n '0006': ['ST', '1', 'StructureSetDescription'],\n '0008': ['DA', '1', 'StructureSetDate'],\n '0009': ['TM', '1', 'StructureSetTime'],\n '0010': ['SQ', '1', 'ReferencedFrameOfReferenceSequence'],\n '0012': ['SQ', '1', 'RTReferencedStudySequence'],\n '0014': ['SQ', '1', 'RTReferencedSeriesSequence'],\n '0016': ['SQ', '1', 'ContourImageSequence'],\n '0018': ['SQ', '1', 'PredecessorStructureSetSequence'],\n '0020': ['SQ', '1', 'StructureSetROISequence'],\n '0022': ['IS', '1', 'ROINumber'],\n '0024': ['UI', '1', 'ReferencedFrameOfReferenceUID'],\n '0026': ['LO', '1', 'ROIName'],\n '0028': ['ST', '1', 'ROIDescription'],\n '002A': ['IS', '3', 'ROIDisplayColor'],\n '002C': ['DS', '1', 'ROIVolume'],\n '0030': ['SQ', '1', 'RTRelatedROISequence'],\n '0033': ['CS', '1', 'RTROIRelationship'],\n '0036': ['CS', '1', 'ROIGenerationAlgorithm'],\n '0037': ['SQ', '1', 'ROIDerivationAlgorithmIdentificationSequence'],\n '0038': ['LO', '1', 'ROIGenerationDescription'],\n '0039': ['SQ', '1', 'ROIContourSequence'],\n '0040': ['SQ', '1', 'ContourSequence'],\n '0042': ['CS', '1', 'ContourGeometricType'],\n '0044': ['DS', '1', 'ContourSlabThickness'],\n '0045': ['DS', '3', 'ContourOffsetVector'],\n '0046': ['IS', '1', 'NumberOfContourPoints'],\n '0048': ['IS', '1', 'ContourNumber'],\n '0049': ['IS', '1-n', 'AttachedContours'],\n '004A': ['SQ', '1', 'SourcePixelPlanesCharacteristicsSequence'],\n '0050': ['DS', '3-3n', 'ContourData'],\n '0080': ['SQ', '1', 'RTROIObservationsSequence'],\n '0082': ['IS', '1', 'ObservationNumber'],\n '0084': ['IS', '1', 'ReferencedROINumber'],\n '0085': ['SH', '1', 'ROIObservationLabel'],\n '0086': ['SQ', '1', 'RTROIIdentificationCodeSequence'],\n '0088': ['ST', '1', 'ROIObservationDescription'],\n '00A0': ['SQ', '1', 'RelatedRTROIObservationsSequence'],\n '00A4': ['CS', '1', 'RTROIInterpretedType'],\n '00A6': ['PN', '1', 'ROIInterpreter'],\n '00B0': ['SQ', '1', 'ROIPhysicalPropertiesSequence'],\n '00B2': ['CS', '1', 'ROIPhysicalProperty'],\n '00B4': ['DS', '1', 'ROIPhysicalPropertyValue'],\n '00B6': ['SQ', '1', 'ROIElementalCompositionSequence'],\n '00B7': ['US', '1', 'ROIElementalCompositionAtomicNumber'],\n '00B8': ['FL', '1', 'ROIElementalCompositionAtomicMassFraction'],\n '00B9': ['SQ', '1', 'AdditionalRTROIIdentificationCodeSequence'],\n '00C0': ['SQ', '1', 'FrameOfReferenceRelationshipSequence'],\n '00C2': ['UI', '1', 'RelatedFrameOfReferenceUID'],\n '00C4': ['CS', '1', 'FrameOfReferenceTransformationType'],\n '00C6': ['DS', '16', 'FrameOfReferenceTransformationMatrix'],\n '00C8': ['LO', '1', 'FrameOfReferenceTransformationComment'],\n '00C9': ['SQ', '1', 'PatientLocationCoordinatesSequence'],\n '00CA': ['SQ', '1', 'PatientLocationCoordinatesCodeSequence'],\n '00CB': ['SQ', '1', 'PatientSupportPositionSequence']\n },\n '3008': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'MeasuredDoseReferenceSequence'],\n '0012': ['ST', '1', 'MeasuredDoseDescription'],\n '0014': ['CS', '1', 'MeasuredDoseType'],\n '0016': ['DS', '1', 'MeasuredDoseValue'],\n '0020': ['SQ', '1', 'TreatmentSessionBeamSequence'],\n '0021': ['SQ', '1', 'TreatmentSessionIonBeamSequence'],\n '0022': ['IS', '1', 'CurrentFractionNumber'],\n '0024': ['DA', '1', 'TreatmentControlPointDate'],\n '0025': ['TM', '1', 'TreatmentControlPointTime'],\n '002A': ['CS', '1', 'TreatmentTerminationStatus'],\n '002B': ['SH', '1', 'TreatmentTerminationCode'],\n '002C': ['CS', '1', 'TreatmentVerificationStatus'],\n '0030': ['SQ', '1', 'ReferencedTreatmentRecordSequence'],\n '0032': ['DS', '1', 'SpecifiedPrimaryMeterset'],\n '0033': ['DS', '1', 'SpecifiedSecondaryMeterset'],\n '0036': ['DS', '1', 'DeliveredPrimaryMeterset'],\n '0037': ['DS', '1', 'DeliveredSecondaryMeterset'],\n '003A': ['DS', '1', 'SpecifiedTreatmentTime'],\n '003B': ['DS', '1', 'DeliveredTreatmentTime'],\n '0040': ['SQ', '1', 'ControlPointDeliverySequence'],\n '0041': ['SQ', '1', 'IonControlPointDeliverySequence'],\n '0042': ['DS', '1', 'SpecifiedMeterset'],\n '0044': ['DS', '1', 'DeliveredMeterset'],\n '0045': ['FL', '1', 'MetersetRateSet'],\n '0046': ['FL', '1', 'MetersetRateDelivered'],\n '0047': ['FL', '1-n', 'ScanSpotMetersetsDelivered'],\n '0048': ['DS', '1', 'DoseRateDelivered'],\n '0050': ['SQ', '1', 'TreatmentSummaryCalculatedDoseReferenceSequence'],\n '0052': ['DS', '1', 'CumulativeDoseToDoseReference'],\n '0054': ['DA', '1', 'FirstTreatmentDate'],\n '0056': ['DA', '1', 'MostRecentTreatmentDate'],\n '005A': ['IS', '1', 'NumberOfFractionsDelivered'],\n '0060': ['SQ', '1', 'OverrideSequence'],\n '0061': ['AT', '1', 'ParameterSequencePointer'],\n '0062': ['AT', '1', 'OverrideParameterPointer'],\n '0063': ['IS', '1', 'ParameterItemIndex'],\n '0064': ['IS', '1', 'MeasuredDoseReferenceNumber'],\n '0065': ['AT', '1', 'ParameterPointer'],\n '0066': ['ST', '1', 'OverrideReason'],\n '0067': ['US', '1', 'ParameterValueNumber'],\n '0068': ['SQ', '1', 'CorrectedParameterSequence'],\n '006A': ['FL', '1', 'CorrectionValue'],\n '0070': ['SQ', '1', 'CalculatedDoseReferenceSequence'],\n '0072': ['IS', '1', 'CalculatedDoseReferenceNumber'],\n '0074': ['ST', '1', 'CalculatedDoseReferenceDescription'],\n '0076': ['DS', '1', 'CalculatedDoseReferenceDoseValue'],\n '0078': ['DS', '1', 'StartMeterset'],\n '007A': ['DS', '1', 'EndMeterset'],\n '0080': ['SQ', '1', 'ReferencedMeasuredDoseReferenceSequence'],\n '0082': ['IS', '1', 'ReferencedMeasuredDoseReferenceNumber'],\n '0090': ['SQ', '1', 'ReferencedCalculatedDoseReferenceSequence'],\n '0092': ['IS', '1', 'ReferencedCalculatedDoseReferenceNumber'],\n '00A0': ['SQ', '1', 'BeamLimitingDeviceLeafPairsSequence'],\n '00B0': ['SQ', '1', 'RecordedWedgeSequence'],\n '00C0': ['SQ', '1', 'RecordedCompensatorSequence'],\n '00D0': ['SQ', '1', 'RecordedBlockSequence'],\n '00D1': ['SQ', '1', 'RecordedBlockSlabSequence'],\n '00E0': ['SQ', '1', 'TreatmentSummaryMeasuredDoseReferenceSequence'],\n '00F0': ['SQ', '1', 'RecordedSnoutSequence'],\n '00F2': ['SQ', '1', 'RecordedRangeShifterSequence'],\n '00F4': ['SQ', '1', 'RecordedLateralSpreadingDeviceSequence'],\n '00F6': ['SQ', '1', 'RecordedRangeModulatorSequence'],\n '0100': ['SQ', '1', 'RecordedSourceSequence'],\n '0105': ['LO', '1', 'SourceSerialNumber'],\n '0110': ['SQ', '1', 'TreatmentSessionApplicationSetupSequence'],\n '0116': ['CS', '1', 'ApplicationSetupCheck'],\n '0120': ['SQ', '1', 'RecordedBrachyAccessoryDeviceSequence'],\n '0122': ['IS', '1', 'ReferencedBrachyAccessoryDeviceNumber'],\n '0130': ['SQ', '1', 'RecordedChannelSequence'],\n '0132': ['DS', '1', 'SpecifiedChannelTotalTime'],\n '0134': ['DS', '1', 'DeliveredChannelTotalTime'],\n '0136': ['IS', '1', 'SpecifiedNumberOfPulses'],\n '0138': ['IS', '1', 'DeliveredNumberOfPulses'],\n '013A': ['DS', '1', 'SpecifiedPulseRepetitionInterval'],\n '013C': ['DS', '1', 'DeliveredPulseRepetitionInterval'],\n '0140': ['SQ', '1', 'RecordedSourceApplicatorSequence'],\n '0142': ['IS', '1', 'ReferencedSourceApplicatorNumber'],\n '0150': ['SQ', '1', 'RecordedChannelShieldSequence'],\n '0152': ['IS', '1', 'ReferencedChannelShieldNumber'],\n '0160': ['SQ', '1', 'BrachyControlPointDeliveredSequence'],\n '0162': ['DA', '1', 'SafePositionExitDate'],\n '0164': ['TM', '1', 'SafePositionExitTime'],\n '0166': ['DA', '1', 'SafePositionReturnDate'],\n '0168': ['TM', '1', 'SafePositionReturnTime'],\n '0171': ['SQ', '1', 'PulseSpecificBrachyControlPointDeliveredSequence'],\n '0172': ['US', '1', 'PulseNumber'],\n '0173': ['SQ', '1', 'BrachyPulseControlPointDeliveredSequence'],\n '0200': ['CS', '1', 'CurrentTreatmentStatus'],\n '0202': ['ST', '1', 'TreatmentStatusComment'],\n '0220': ['SQ', '1', 'FractionGroupSummarySequence'],\n '0223': ['IS', '1', 'ReferencedFractionNumber'],\n '0224': ['CS', '1', 'FractionGroupType'],\n '0230': ['CS', '1', 'BeamStopperPosition'],\n '0240': ['SQ', '1', 'FractionStatusSummarySequence'],\n '0250': ['DA', '1', 'TreatmentDate'],\n '0251': ['TM', '1', 'TreatmentTime']\n },\n '300A': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'RTPlanLabel'],\n '0003': ['LO', '1', 'RTPlanName'],\n '0004': ['ST', '1', 'RTPlanDescription'],\n '0006': ['DA', '1', 'RTPlanDate'],\n '0007': ['TM', '1', 'RTPlanTime'],\n '0009': ['LO', '1-n', 'TreatmentProtocols'],\n '000A': ['CS', '1', 'PlanIntent'],\n '000B': ['LO', '1-n', 'TreatmentSites'],\n '000C': ['CS', '1', 'RTPlanGeometry'],\n '000E': ['ST', '1', 'PrescriptionDescription'],\n '0010': ['SQ', '1', 'DoseReferenceSequence'],\n '0012': ['IS', '1', 'DoseReferenceNumber'],\n '0013': ['UI', '1', 'DoseReferenceUID'],\n '0014': ['CS', '1', 'DoseReferenceStructureType'],\n '0015': ['CS', '1', 'NominalBeamEnergyUnit'],\n '0016': ['LO', '1', 'DoseReferenceDescription'],\n '0018': ['DS', '3', 'DoseReferencePointCoordinates'],\n '001A': ['DS', '1', 'NominalPriorDose'],\n '0020': ['CS', '1', 'DoseReferenceType'],\n '0021': ['DS', '1', 'ConstraintWeight'],\n '0022': ['DS', '1', 'DeliveryWarningDose'],\n '0023': ['DS', '1', 'DeliveryMaximumDose'],\n '0025': ['DS', '1', 'TargetMinimumDose'],\n '0026': ['DS', '1', 'TargetPrescriptionDose'],\n '0027': ['DS', '1', 'TargetMaximumDose'],\n '0028': ['DS', '1', 'TargetUnderdoseVolumeFraction'],\n '002A': ['DS', '1', 'OrganAtRiskFullVolumeDose'],\n '002B': ['DS', '1', 'OrganAtRiskLimitDose'],\n '002C': ['DS', '1', 'OrganAtRiskMaximumDose'],\n '002D': ['DS', '1', 'OrganAtRiskOverdoseVolumeFraction'],\n '0040': ['SQ', '1', 'ToleranceTableSequence'],\n '0042': ['IS', '1', 'ToleranceTableNumber'],\n '0043': ['SH', '1', 'ToleranceTableLabel'],\n '0044': ['DS', '1', 'GantryAngleTolerance'],\n '0046': ['DS', '1', 'BeamLimitingDeviceAngleTolerance'],\n '0048': ['SQ', '1', 'BeamLimitingDeviceToleranceSequence'],\n '004A': ['DS', '1', 'BeamLimitingDevicePositionTolerance'],\n '004B': ['FL', '1', 'SnoutPositionTolerance'],\n '004C': ['DS', '1', 'PatientSupportAngleTolerance'],\n '004E': ['DS', '1', 'TableTopEccentricAngleTolerance'],\n '004F': ['FL', '1', 'TableTopPitchAngleTolerance'],\n '0050': ['FL', '1', 'TableTopRollAngleTolerance'],\n '0051': ['DS', '1', 'TableTopVerticalPositionTolerance'],\n '0052': ['DS', '1', 'TableTopLongitudinalPositionTolerance'],\n '0053': ['DS', '1', 'TableTopLateralPositionTolerance'],\n '0055': ['CS', '1', 'RTPlanRelationship'],\n '0070': ['SQ', '1', 'FractionGroupSequence'],\n '0071': ['IS', '1', 'FractionGroupNumber'],\n '0072': ['LO', '1', 'FractionGroupDescription'],\n '0078': ['IS', '1', 'NumberOfFractionsPlanned'],\n '0079': ['IS', '1', 'NumberOfFractionPatternDigitsPerDay'],\n '007A': ['IS', '1', 'RepeatFractionCycleLength'],\n '007B': ['LT', '1', 'FractionPattern'],\n '0080': ['IS', '1', 'NumberOfBeams'],\n '0082': ['DS', '3', 'BeamDoseSpecificationPoint'],\n '0083': ['UI', '1', 'ReferencedDoseReferenceUID'],\n '0084': ['DS', '1', 'BeamDose'],\n '0086': ['DS', '1', 'BeamMeterset'],\n '0088': ['FL', '1', 'BeamDosePointDepth'],\n '0089': ['FL', '1', 'BeamDosePointEquivalentDepth'],\n '008A': ['FL', '1', 'BeamDosePointSSD'],\n '008B': ['CS', '1', 'BeamDoseMeaning'],\n '008C': ['SQ', '1', 'BeamDoseVerificationControlPointSequence'],\n '008D': ['FL', '1', 'AverageBeamDosePointDepth'],\n '008E': ['FL', '1', 'AverageBeamDosePointEquivalentDepth'],\n '008F': ['FL', '1', 'AverageBeamDosePointSSD'],\n '0090': ['CS', '1', 'BeamDoseType'],\n '0091': ['DS', '1', 'AlternateBeamDose'],\n '0092': ['CS', '1', 'AlternateBeamDoseType'],\n '0093': ['CS', '1', 'DepthValueAveragingFlag'],\n '0094': ['DS', '1', 'BeamDosePointSourceToExternalContourDistance'],\n '00A0': ['IS', '1', 'NumberOfBrachyApplicationSetups'],\n '00A2': ['DS', '3', 'BrachyApplicationSetupDoseSpecificationPoint'],\n '00A4': ['DS', '1', 'BrachyApplicationSetupDose'],\n '00B0': ['SQ', '1', 'BeamSequence'],\n '00B2': ['SH', '1', 'TreatmentMachineName'],\n '00B3': ['CS', '1', 'PrimaryDosimeterUnit'],\n '00B4': ['DS', '1', 'SourceAxisDistance'],\n '00B6': ['SQ', '1', 'BeamLimitingDeviceSequence'],\n '00B8': ['CS', '1', 'RTBeamLimitingDeviceType'],\n '00BA': ['DS', '1', 'SourceToBeamLimitingDeviceDistance'],\n '00BB': ['FL', '1', 'IsocenterToBeamLimitingDeviceDistance'],\n '00BC': ['IS', '1', 'NumberOfLeafJawPairs'],\n '00BE': ['DS', '3-n', 'LeafPositionBoundaries'],\n '00C0': ['IS', '1', 'BeamNumber'],\n '00C2': ['LO', '1', 'BeamName'],\n '00C3': ['ST', '1', 'BeamDescription'],\n '00C4': ['CS', '1', 'BeamType'],\n '00C5': ['FD', '1', 'BeamDeliveryDurationLimit'],\n '00C6': ['CS', '1', 'RadiationType'],\n '00C7': ['CS', '1', 'HighDoseTechniqueType'],\n '00C8': ['IS', '1', 'ReferenceImageNumber'],\n '00CA': ['SQ', '1', 'PlannedVerificationImageSequence'],\n '00CC': ['LO', '1-n', 'ImagingDeviceSpecificAcquisitionParameters'],\n '00CE': ['CS', '1', 'TreatmentDeliveryType'],\n '00D0': ['IS', '1', 'NumberOfWedges'],\n '00D1': ['SQ', '1', 'WedgeSequence'],\n '00D2': ['IS', '1', 'WedgeNumber'],\n '00D3': ['CS', '1', 'WedgeType'],\n '00D4': ['SH', '1', 'WedgeID'],\n '00D5': ['IS', '1', 'WedgeAngle'],\n '00D6': ['DS', '1', 'WedgeFactor'],\n '00D7': ['FL', '1', 'TotalWedgeTrayWaterEquivalentThickness'],\n '00D8': ['DS', '1', 'WedgeOrientation'],\n '00D9': ['FL', '1', 'IsocenterToWedgeTrayDistance'],\n '00DA': ['DS', '1', 'SourceToWedgeTrayDistance'],\n '00DB': ['FL', '1', 'WedgeThinEdgePosition'],\n '00DC': ['SH', '1', 'BolusID'],\n '00DD': ['ST', '1', 'BolusDescription'],\n '00DE': ['DS', '1', 'EffectiveWedgeAngle'],\n '00E0': ['IS', '1', 'NumberOfCompensators'],\n '00E1': ['SH', '1', 'MaterialID'],\n '00E2': ['DS', '1', 'TotalCompensatorTrayFactor'],\n '00E3': ['SQ', '1', 'CompensatorSequence'],\n '00E4': ['IS', '1', 'CompensatorNumber'],\n '00E5': ['SH', '1', 'CompensatorID'],\n '00E6': ['DS', '1', 'SourceToCompensatorTrayDistance'],\n '00E7': ['IS', '1', 'CompensatorRows'],\n '00E8': ['IS', '1', 'CompensatorColumns'],\n '00E9': ['DS', '2', 'CompensatorPixelSpacing'],\n '00EA': ['DS', '2', 'CompensatorPosition'],\n '00EB': ['DS', '1-n', 'CompensatorTransmissionData'],\n '00EC': ['DS', '1-n', 'CompensatorThicknessData'],\n '00ED': ['IS', '1', 'NumberOfBoli'],\n '00EE': ['CS', '1', 'CompensatorType'],\n '00EF': ['SH', '1', 'CompensatorTrayID'],\n '00F0': ['IS', '1', 'NumberOfBlocks'],\n '00F2': ['DS', '1', 'TotalBlockTrayFactor'],\n '00F3': ['FL', '1', 'TotalBlockTrayWaterEquivalentThickness'],\n '00F4': ['SQ', '1', 'BlockSequence'],\n '00F5': ['SH', '1', 'BlockTrayID'],\n '00F6': ['DS', '1', 'SourceToBlockTrayDistance'],\n '00F7': ['FL', '1', 'IsocenterToBlockTrayDistance'],\n '00F8': ['CS', '1', 'BlockType'],\n '00F9': ['LO', '1', 'AccessoryCode'],\n '00FA': ['CS', '1', 'BlockDivergence'],\n '00FB': ['CS', '1', 'BlockMountingPosition'],\n '00FC': ['IS', '1', 'BlockNumber'],\n '00FE': ['LO', '1', 'BlockName'],\n '0100': ['DS', '1', 'BlockThickness'],\n '0102': ['DS', '1', 'BlockTransmission'],\n '0104': ['IS', '1', 'BlockNumberOfPoints'],\n '0106': ['DS', '2-2n', 'BlockData'],\n '0107': ['SQ', '1', 'ApplicatorSequence'],\n '0108': ['SH', '1', 'ApplicatorID'],\n '0109': ['CS', '1', 'ApplicatorType'],\n '010A': ['LO', '1', 'ApplicatorDescription'],\n '010C': ['DS', '1', 'CumulativeDoseReferenceCoefficient'],\n '010E': ['DS', '1', 'FinalCumulativeMetersetWeight'],\n '0110': ['IS', '1', 'NumberOfControlPoints'],\n '0111': ['SQ', '1', 'ControlPointSequence'],\n '0112': ['IS', '1', 'ControlPointIndex'],\n '0114': ['DS', '1', 'NominalBeamEnergy'],\n '0115': ['DS', '1', 'DoseRateSet'],\n '0116': ['SQ', '1', 'WedgePositionSequence'],\n '0118': ['CS', '1', 'WedgePosition'],\n '011A': ['SQ', '1', 'BeamLimitingDevicePositionSequence'],\n '011C': ['DS', '2-2n', 'LeafJawPositions'],\n '011E': ['DS', '1', 'GantryAngle'],\n '011F': ['CS', '1', 'GantryRotationDirection'],\n '0120': ['DS', '1', 'BeamLimitingDeviceAngle'],\n '0121': ['CS', '1', 'BeamLimitingDeviceRotationDirection'],\n '0122': ['DS', '1', 'PatientSupportAngle'],\n '0123': ['CS', '1', 'PatientSupportRotationDirection'],\n '0124': ['DS', '1', 'TableTopEccentricAxisDistance'],\n '0125': ['DS', '1', 'TableTopEccentricAngle'],\n '0126': ['CS', '1', 'TableTopEccentricRotationDirection'],\n '0128': ['DS', '1', 'TableTopVerticalPosition'],\n '0129': ['DS', '1', 'TableTopLongitudinalPosition'],\n '012A': ['DS', '1', 'TableTopLateralPosition'],\n '012C': ['DS', '3', 'IsocenterPosition'],\n '012E': ['DS', '3', 'SurfaceEntryPoint'],\n '0130': ['DS', '1', 'SourceToSurfaceDistance'],\n '0131': ['FL', '1', 'AverageBeamDosePointSourceToExternalContourDistance'],\n '0132': ['FL', '1', 'SourceToExternalContourDistance'],\n '0133': ['FL', '3', 'ExternalContourEntryPoint'],\n '0134': ['DS', '1', 'CumulativeMetersetWeight'],\n '0140': ['FL', '1', 'TableTopPitchAngle'],\n '0142': ['CS', '1', 'TableTopPitchRotationDirection'],\n '0144': ['FL', '1', 'TableTopRollAngle'],\n '0146': ['CS', '1', 'TableTopRollRotationDirection'],\n '0148': ['FL', '1', 'HeadFixationAngle'],\n '014A': ['FL', '1', 'GantryPitchAngle'],\n '014C': ['CS', '1', 'GantryPitchRotationDirection'],\n '014E': ['FL', '1', 'GantryPitchAngleTolerance'],\n '0150': ['CS', '1', 'FixationEye'],\n '0151': ['DS', '1', 'ChairHeadFramePosition'],\n '0152': ['DS', '1', 'HeadFixationAngleTolerance'],\n '0153': ['DS', '1', 'ChairHeadFramePositionTolerance'],\n '0154': ['DS', '1', 'FixationLightAzimuthalAngleTolerance'],\n '0155': ['DS', '1', 'FixationLightPolarAngleTolerance'],\n '0180': ['SQ', '1', 'PatientSetupSequence'],\n '0182': ['IS', '1', 'PatientSetupNumber'],\n '0183': ['LO', '1', 'PatientSetupLabel'],\n '0184': ['LO', '1', 'PatientAdditionalPosition'],\n '0190': ['SQ', '1', 'FixationDeviceSequence'],\n '0192': ['CS', '1', 'FixationDeviceType'],\n '0194': ['SH', '1', 'FixationDeviceLabel'],\n '0196': ['ST', '1', 'FixationDeviceDescription'],\n '0198': ['SH', '1', 'FixationDevicePosition'],\n '0199': ['FL', '1', 'FixationDevicePitchAngle'],\n '019A': ['FL', '1', 'FixationDeviceRollAngle'],\n '01A0': ['SQ', '1', 'ShieldingDeviceSequence'],\n '01A2': ['CS', '1', 'ShieldingDeviceType'],\n '01A4': ['SH', '1', 'ShieldingDeviceLabel'],\n '01A6': ['ST', '1', 'ShieldingDeviceDescription'],\n '01A8': ['SH', '1', 'ShieldingDevicePosition'],\n '01B0': ['CS', '1', 'SetupTechnique'],\n '01B2': ['ST', '1', 'SetupTechniqueDescription'],\n '01B4': ['SQ', '1', 'SetupDeviceSequence'],\n '01B6': ['CS', '1', 'SetupDeviceType'],\n '01B8': ['SH', '1', 'SetupDeviceLabel'],\n '01BA': ['ST', '1', 'SetupDeviceDescription'],\n '01BC': ['DS', '1', 'SetupDeviceParameter'],\n '01D0': ['ST', '1', 'SetupReferenceDescription'],\n '01D2': ['DS', '1', 'TableTopVerticalSetupDisplacement'],\n '01D4': ['DS', '1', 'TableTopLongitudinalSetupDisplacement'],\n '01D6': ['DS', '1', 'TableTopLateralSetupDisplacement'],\n '0200': ['CS', '1', 'BrachyTreatmentTechnique'],\n '0202': ['CS', '1', 'BrachyTreatmentType'],\n '0206': ['SQ', '1', 'TreatmentMachineSequence'],\n '0210': ['SQ', '1', 'SourceSequence'],\n '0212': ['IS', '1', 'SourceNumber'],\n '0214': ['CS', '1', 'SourceType'],\n '0216': ['LO', '1', 'SourceManufacturer'],\n '0218': ['DS', '1', 'ActiveSourceDiameter'],\n '021A': ['DS', '1', 'ActiveSourceLength'],\n '021B': ['SH', '1', 'SourceModelID'],\n '021C': ['LO', '1', 'SourceDescription'],\n '0222': ['DS', '1', 'SourceEncapsulationNominalThickness'],\n '0224': ['DS', '1', 'SourceEncapsulationNominalTransmission'],\n '0226': ['LO', '1', 'SourceIsotopeName'],\n '0228': ['DS', '1', 'SourceIsotopeHalfLife'],\n '0229': ['CS', '1', 'SourceStrengthUnits'],\n '022A': ['DS', '1', 'ReferenceAirKermaRate'],\n '022B': ['DS', '1', 'SourceStrength'],\n '022C': ['DA', '1', 'SourceStrengthReferenceDate'],\n '022E': ['TM', '1', 'SourceStrengthReferenceTime'],\n '0230': ['SQ', '1', 'ApplicationSetupSequence'],\n '0232': ['CS', '1', 'ApplicationSetupType'],\n '0234': ['IS', '1', 'ApplicationSetupNumber'],\n '0236': ['LO', '1', 'ApplicationSetupName'],\n '0238': ['LO', '1', 'ApplicationSetupManufacturer'],\n '0240': ['IS', '1', 'TemplateNumber'],\n '0242': ['SH', '1', 'TemplateType'],\n '0244': ['LO', '1', 'TemplateName'],\n '0250': ['DS', '1', 'TotalReferenceAirKerma'],\n '0260': ['SQ', '1', 'BrachyAccessoryDeviceSequence'],\n '0262': ['IS', '1', 'BrachyAccessoryDeviceNumber'],\n '0263': ['SH', '1', 'BrachyAccessoryDeviceID'],\n '0264': ['CS', '1', 'BrachyAccessoryDeviceType'],\n '0266': ['LO', '1', 'BrachyAccessoryDeviceName'],\n '026A': ['DS', '1', 'BrachyAccessoryDeviceNominalThickness'],\n '026C': ['DS', '1', 'BrachyAccessoryDeviceNominalTransmission'],\n '0271': ['DS', '1', 'ChannelEffectiveLength'],\n '0272': ['DS', '1', 'ChannelInnerLength'],\n '0273': ['SH', '1', 'AfterloaderChannelID'],\n '0274': ['DS', '1', 'SourceApplicatorTipLength'],\n '0280': ['SQ', '1', 'ChannelSequence'],\n '0282': ['IS', '1', 'ChannelNumber'],\n '0284': ['DS', '1', 'ChannelLength'],\n '0286': ['DS', '1', 'ChannelTotalTime'],\n '0288': ['CS', '1', 'SourceMovementType'],\n '028A': ['IS', '1', 'NumberOfPulses'],\n '028C': ['DS', '1', 'PulseRepetitionInterval'],\n '0290': ['IS', '1', 'SourceApplicatorNumber'],\n '0291': ['SH', '1', 'SourceApplicatorID'],\n '0292': ['CS', '1', 'SourceApplicatorType'],\n '0294': ['LO', '1', 'SourceApplicatorName'],\n '0296': ['DS', '1', 'SourceApplicatorLength'],\n '0298': ['LO', '1', 'SourceApplicatorManufacturer'],\n '029C': ['DS', '1', 'SourceApplicatorWallNominalThickness'],\n '029E': ['DS', '1', 'SourceApplicatorWallNominalTransmission'],\n '02A0': ['DS', '1', 'SourceApplicatorStepSize'],\n '02A1': ['IS', '1', 'ApplicatorShapeReferencedROINumber'],\n '02A2': ['IS', '1', 'TransferTubeNumber'],\n '02A4': ['DS', '1', 'TransferTubeLength'],\n '02B0': ['SQ', '1', 'ChannelShieldSequence'],\n '02B2': ['IS', '1', 'ChannelShieldNumber'],\n '02B3': ['SH', '1', 'ChannelShieldID'],\n '02B4': ['LO', '1', 'ChannelShieldName'],\n '02B8': ['DS', '1', 'ChannelShieldNominalThickness'],\n '02BA': ['DS', '1', 'ChannelShieldNominalTransmission'],\n '02C8': ['DS', '1', 'FinalCumulativeTimeWeight'],\n '02D0': ['SQ', '1', 'BrachyControlPointSequence'],\n '02D2': ['DS', '1', 'ControlPointRelativePosition'],\n '02D4': ['DS', '3', 'ControlPoint3DPosition'],\n '02D6': ['DS', '1', 'CumulativeTimeWeight'],\n '02E0': ['CS', '1', 'CompensatorDivergence'],\n '02E1': ['CS', '1', 'CompensatorMountingPosition'],\n '02E2': ['DS', '1-n', 'SourceToCompensatorDistance'],\n '02E3': ['FL', '1', 'TotalCompensatorTrayWaterEquivalentThickness'],\n '02E4': ['FL', '1', 'IsocenterToCompensatorTrayDistance'],\n '02E5': ['FL', '1', 'CompensatorColumnOffset'],\n '02E6': ['FL', '1-n', 'IsocenterToCompensatorDistances'],\n '02E7': ['FL', '1', 'CompensatorRelativeStoppingPowerRatio'],\n '02E8': ['FL', '1', 'CompensatorMillingToolDiameter'],\n '02EA': ['SQ', '1', 'IonRangeCompensatorSequence'],\n '02EB': ['LT', '1', 'CompensatorDescription'],\n '0302': ['IS', '1', 'RadiationMassNumber'],\n '0304': ['IS', '1', 'RadiationAtomicNumber'],\n '0306': ['SS', '1', 'RadiationChargeState'],\n '0308': ['CS', '1', 'ScanMode'],\n '0309': ['CS', '1', 'ModulatedScanModeType'],\n '030A': ['FL', '2', 'VirtualSourceAxisDistances'],\n '030C': ['SQ', '1', 'SnoutSequence'],\n '030D': ['FL', '1', 'SnoutPosition'],\n '030F': ['SH', '1', 'SnoutID'],\n '0312': ['IS', '1', 'NumberOfRangeShifters'],\n '0314': ['SQ', '1', 'RangeShifterSequence'],\n '0316': ['IS', '1', 'RangeShifterNumber'],\n '0318': ['SH', '1', 'RangeShifterID'],\n '0320': ['CS', '1', 'RangeShifterType'],\n '0322': ['LO', '1', 'RangeShifterDescription'],\n '0330': ['IS', '1', 'NumberOfLateralSpreadingDevices'],\n '0332': ['SQ', '1', 'LateralSpreadingDeviceSequence'],\n '0334': ['IS', '1', 'LateralSpreadingDeviceNumber'],\n '0336': ['SH', '1', 'LateralSpreadingDeviceID'],\n '0338': ['CS', '1', 'LateralSpreadingDeviceType'],\n '033A': ['LO', '1', 'LateralSpreadingDeviceDescription'],\n '033C': ['FL', '1', 'LateralSpreadingDeviceWaterEquivalentThickness'],\n '0340': ['IS', '1', 'NumberOfRangeModulators'],\n '0342': ['SQ', '1', 'RangeModulatorSequence'],\n '0344': ['IS', '1', 'RangeModulatorNumber'],\n '0346': ['SH', '1', 'RangeModulatorID'],\n '0348': ['CS', '1', 'RangeModulatorType'],\n '034A': ['LO', '1', 'RangeModulatorDescription'],\n '034C': ['SH', '1', 'BeamCurrentModulationID'],\n '0350': ['CS', '1', 'PatientSupportType'],\n '0352': ['SH', '1', 'PatientSupportID'],\n '0354': ['LO', '1', 'PatientSupportAccessoryCode'],\n '0355': ['LO', '1', 'TrayAccessoryCode'],\n '0356': ['FL', '1', 'FixationLightAzimuthalAngle'],\n '0358': ['FL', '1', 'FixationLightPolarAngle'],\n '035A': ['FL', '1', 'MetersetRate'],\n '0360': ['SQ', '1', 'RangeShifterSettingsSequence'],\n '0362': ['LO', '1', 'RangeShifterSetting'],\n '0364': ['FL', '1', 'IsocenterToRangeShifterDistance'],\n '0366': ['FL', '1', 'RangeShifterWaterEquivalentThickness'],\n '0370': ['SQ', '1', 'LateralSpreadingDeviceSettingsSequence'],\n '0372': ['LO', '1', 'LateralSpreadingDeviceSetting'],\n '0374': ['FL', '1', 'IsocenterToLateralSpreadingDeviceDistance'],\n '0380': ['SQ', '1', 'RangeModulatorSettingsSequence'],\n '0382': ['FL', '1', 'RangeModulatorGatingStartValue'],\n '0384': ['FL', '1', 'RangeModulatorGatingStopValue'],\n '0386': ['FL', '1', 'RangeModulatorGatingStartWaterEquivalentThickness'],\n '0388': ['FL', '1', 'RangeModulatorGatingStopWaterEquivalentThickness'],\n '038A': ['FL', '1', 'IsocenterToRangeModulatorDistance'],\n '038F': ['FL', '1-n', 'ScanSpotTimeOffset'],\n '0390': ['SH', '1', 'ScanSpotTuneID'],\n '0391': ['IS', '1-n', 'ScanSpotPrescribedIndices'],\n '0392': ['IS', '1', 'NumberOfScanSpotPositions'],\n '0393': ['CS', '1', 'ScanSpotReordered'],\n '0394': ['FL', '1-n', 'ScanSpotPositionMap'],\n '0395': ['CS', '1', 'ScanSpotReorderingAllowed'],\n '0396': ['FL', '1-n', 'ScanSpotMetersetWeights'],\n '0398': ['FL', '2', 'ScanningSpotSize'],\n '0399': ['FL', '2-2n', 'ScanSpotSizesDelivered'],\n '039A': ['IS', '1', 'NumberOfPaintings'],\n '03A0': ['SQ', '1', 'IonToleranceTableSequence'],\n '03A2': ['SQ', '1', 'IonBeamSequence'],\n '03A4': ['SQ', '1', 'IonBeamLimitingDeviceSequence'],\n '03A6': ['SQ', '1', 'IonBlockSequence'],\n '03A8': ['SQ', '1', 'IonControlPointSequence'],\n '03AA': ['SQ', '1', 'IonWedgeSequence'],\n '03AC': ['SQ', '1', 'IonWedgePositionSequence'],\n '0401': ['SQ', '1', 'ReferencedSetupImageSequence'],\n '0402': ['ST', '1', 'SetupImageComment'],\n '0410': ['SQ', '1', 'MotionSynchronizationSequence'],\n '0412': ['FL', '3', 'ControlPointOrientation'],\n '0420': ['SQ', '1', 'GeneralAccessorySequence'],\n '0421': ['SH', '1', 'GeneralAccessoryID'],\n '0422': ['ST', '1', 'GeneralAccessoryDescription'],\n '0423': ['CS', '1', 'GeneralAccessoryType'],\n '0424': ['IS', '1', 'GeneralAccessoryNumber'],\n '0425': ['FL', '1', 'SourceToGeneralAccessoryDistance'],\n '0426': ['DS', '1', 'IsocenterToGeneralAccessoryDistance'],\n '0431': ['SQ', '1', 'ApplicatorGeometrySequence'],\n '0432': ['CS', '1', 'ApplicatorApertureShape'],\n '0433': ['FL', '1', 'ApplicatorOpening'],\n '0434': ['FL', '1', 'ApplicatorOpeningX'],\n '0435': ['FL', '1', 'ApplicatorOpeningY'],\n '0436': ['FL', '1', 'SourceToApplicatorMountingPositionDistance'],\n '0440': ['IS', '1', 'NumberOfBlockSlabItems'],\n '0441': ['SQ', '1', 'BlockSlabSequence'],\n '0442': ['DS', '1', 'BlockSlabThickness'],\n '0443': ['US', '1', 'BlockSlabNumber'],\n '0450': ['SQ', '1', 'DeviceMotionControlSequence'],\n '0451': ['CS', '1', 'DeviceMotionExecutionMode'],\n '0452': ['CS', '1', 'DeviceMotionObservationMode'],\n '0453': ['SQ', '1', 'DeviceMotionParameterCodeSequence'],\n '0501': ['FL', '1', 'DistalDepthFraction'],\n '0502': ['FL', '1', 'DistalDepth'],\n '0503': ['FL', '2', 'NominalRangeModulationFractions'],\n '0504': ['FL', '2', 'NominalRangeModulatedRegionDepths'],\n '0505': ['SQ', '1', 'DepthDoseParametersSequence'],\n '0506': ['SQ', '1', 'DeliveredDepthDoseParametersSequence'],\n '0507': ['FL', '1', 'DeliveredDistalDepthFraction'],\n '0508': ['FL', '1', 'DeliveredDistalDepth'],\n '0509': ['FL', '2', 'DeliveredNominalRangeModulationFractions'],\n '0510': ['FL', '2', 'DeliveredNominalRangeModulatedRegionDepths'],\n '0511': ['CS', '1', 'DeliveredReferenceDoseDefinition'],\n '0512': ['CS', '1', 'ReferenceDoseDefinition'],\n '0600': ['US', '1', 'RTControlPointIndex'],\n '0601': ['US', '1', 'RadiationGenerationModeIndex'],\n '0602': ['US', '1', 'ReferencedDefinedDeviceIndex'],\n '0603': ['US', '1', 'RadiationDoseIdentificationIndex'],\n '0604': ['US', '1', 'NumberOfRTControlPoints'],\n '0605': ['US', '1', 'ReferencedRadiationGenerationModeIndex'],\n '0606': ['US', '1', 'TreatmentPositionIndex'],\n '0607': ['US', '1', 'ReferencedDeviceIndex'],\n '0608': ['LO', '1', 'TreatmentPositionGroupLabel'],\n '0609': ['UI', '1', 'TreatmentPositionGroupUID'],\n '060A': ['SQ', '1', 'TreatmentPositionGroupSequence'],\n '060B': ['US', '1', 'ReferencedTreatmentPositionIndex'],\n '060C': ['US', '1', 'ReferencedRadiationDoseIdentificationIndex'],\n '060D': ['FD', '1', 'RTAccessoryHolderWaterEquivalentThickness'],\n '060E': ['US', '1', 'ReferencedRTAccessoryHolderDeviceIndex'],\n '060F': ['CS', '1', 'RTAccessoryHolderSlotExistenceFlag'],\n '0610': ['SQ', '1', 'RTAccessoryHolderSlotSequence'],\n '0611': ['LO', '1', 'RTAccessoryHolderSlotID'],\n '0612': ['FD', '1', 'RTAccessoryHolderSlotDistance'],\n '0613': ['FD', '1', 'RTAccessorySlotDistance'],\n '0614': ['SQ', '1', 'RTAccessoryHolderDefinitionSequence'],\n '0615': ['LO', '1', 'RTAccessoryDeviceSlotID'],\n '0616': ['SQ', '1', 'RTRadiationSequence'],\n '0617': ['SQ', '1', 'RadiationDoseSequence'],\n '0618': ['SQ', '1', 'RadiationDoseIdentificationSequence'],\n '0619': ['LO', '1', 'RadiationDoseIdentificationLabel'],\n '061A': ['CS', '1', 'ReferenceDoseType'],\n '061B': ['CS', '1', 'PrimaryDoseValueIndicator'],\n '061C': ['SQ', '1', 'DoseValuesSequence'],\n '061D': ['CS', '1-n', 'DoseValuePurpose'],\n '061E': ['FD', '3', 'ReferenceDosePointCoordinates'],\n '061F': ['SQ', '1', 'RadiationDoseValuesParametersSequence'],\n '0620': ['SQ', '1', 'MetersetToDoseMappingSequence'],\n '0621': ['SQ', '1', 'ExpectedInVivoMeasurementValuesSequence'],\n '0622': ['US', '1', 'ExpectedInVivoMeasurementValueIndex'],\n '0623': ['LO', '1', 'RadiationDoseInVivoMeasurementLabel'],\n '0624': ['FD', '2', 'RadiationDoseCentralAxisDisplacement'],\n '0625': ['FD', '1', 'RadiationDoseValue'],\n '0626': ['FD', '1', 'RadiationDoseSourceToSkinDistance'],\n '0627': ['FD', '3', 'RadiationDoseMeasurementPointCoordinates'],\n '0628': ['FD', '1', 'RadiationDoseSourceToExternalContourDistance'],\n '0629': ['SQ', '1', 'RTToleranceSetSequence'],\n '062A': ['LO', '1', 'RTToleranceSetLabel'],\n '062B': ['SQ', '1', 'AttributeToleranceValuesSequence'],\n '062C': ['FD', '1', 'ToleranceValue'],\n '062D': ['SQ', '1', 'PatientSupportPositionToleranceSequence'],\n '062E': ['FD', '1', 'TreatmentTimeLimit'],\n '062F': ['SQ', '1', 'CArmPhotonElectronControlPointSequence'],\n '0630': ['SQ', '1', 'ReferencedRTRadiationSequence'],\n '0631': ['SQ', '1', 'ReferencedRTInstanceSequence'],\n '0632': ['SQ', '1', 'ReferencedRTPatientSetupSequence'],\n '0634': ['FD', '1', 'SourceToPatientSurfaceDistance'],\n '0635': ['SQ', '1', 'TreatmentMachineSpecialModeCodeSequence'],\n '0636': ['US', '1', 'IntendedNumberOfFractions'],\n '0637': ['CS', '1', 'RTRadiationSetIntent'],\n '0638': ['CS', '1', 'RTRadiationPhysicalAndGeometricContentDetailFlag'],\n '0639': ['CS', '1', 'RTRecordFlag'],\n '063A': ['SQ', '1', 'TreatmentDeviceIdentificationSequence'],\n '063B': ['SQ', '1', 'ReferencedRTPhysicianIntentSequence'],\n '063C': ['FD', '1', 'CumulativeMeterset'],\n '063D': ['FD', '1', 'DeliveryRate'],\n '063E': ['SQ', '1', 'DeliveryRateUnitSequence'],\n '063F': ['SQ', '1', 'TreatmentPositionSequence'],\n '0640': ['FD', '1', 'RadiationSourceAxisDistance'],\n '0641': ['US', '1', 'NumberOfRTBeamLimitingDevices'],\n '0642': ['FD', '1', 'RTBeamLimitingDeviceProximalDistance'],\n '0643': ['FD', '1', 'RTBeamLimitingDeviceDistalDistance'],\n '0644': ['SQ', '1', 'ParallelRTBeamDelimiterDeviceOrientationLabelCodeSequence'],\n '0645': ['FD', '1', 'BeamModifierOrientationAngle'],\n '0646': ['SQ', '1', 'FixedRTBeamDelimiterDeviceSequence'],\n '0647': ['SQ', '1', 'ParallelRTBeamDelimiterDeviceSequence'],\n '0648': ['US', '1', 'NumberOfParallelRTBeamDelimiters'],\n '0649': ['FD', '2-n', 'ParallelRTBeamDelimiterBoundaries'],\n '064A': ['FD', '2-n', 'ParallelRTBeamDelimiterPositions'],\n '064B': ['FD', '2', 'RTBeamLimitingDeviceOffset'],\n '064C': ['SQ', '1', 'RTBeamDelimiterGeometrySequence'],\n '064D': ['SQ', '1', 'RTBeamLimitingDeviceDefinitionSequence'],\n '064E': ['CS', '1', 'ParallelRTBeamDelimiterOpeningMode'],\n '064F': ['CS', '1-n', 'ParallelRTBeamDelimiterLeafMountingSide'],\n '0650': ['UI', '1', 'PatientSetupUID'],\n '0651': ['SQ', '1', 'WedgeDefinitionSequence'],\n '0652': ['FD', '1', 'RadiationBeamWedgeAngle'],\n '0653': ['FD', '1', 'RadiationBeamWedgeThinEdgeDistance'],\n '0654': ['FD', '1', 'RadiationBeamEffectiveWedgeAngle'],\n '0655': ['US', '1', 'NumberOfWedgePositions'],\n '0656': ['SQ', '1', 'RTBeamLimitingDeviceOpeningSequence'],\n '0657': ['US', '1', 'NumberOfRTBeamLimitingDeviceOpenings'],\n '0658': ['SQ', '1', 'RadiationDosimeterUnitSequence'],\n '0659': ['SQ', '1', 'RTDeviceDistanceReferenceLocationCodeSequence'],\n '065A': ['SQ', '1', 'RadiationDeviceConfigurationAndCommissioningKeySequence'],\n '065B': ['SQ', '1', 'PatientSupportPositionParameterSequence'],\n '065C': ['CS', '1', 'PatientSupportPositionSpecificationMethod'],\n '065D': ['SQ', '1', 'PatientSupportPositionDeviceParameterSequence'],\n '065E': ['US', '1', 'DeviceOrderIndex'],\n '065F': ['US', '1', 'PatientSupportPositionParameterOrderIndex'],\n '0660': ['SQ', '1', 'PatientSupportPositionDeviceToleranceSequence'],\n '0661': ['US', '1', 'PatientSupportPositionToleranceOrderIndex'],\n '0662': ['SQ', '1', 'CompensatorDefinitionSequence'],\n '0663': ['CS', '1', 'CompensatorMapOrientation'],\n '0664': ['OF', '1', 'CompensatorProximalThicknessMap'],\n '0665': ['OF', '1', 'CompensatorDistalThicknessMap'],\n '0666': ['FD', '1', 'CompensatorBasePlaneOffset'],\n '0667': ['SQ', '1', 'CompensatorShapeFabricationCodeSequence'],\n '0668': ['SQ', '1', 'CompensatorShapeSequence'],\n '0669': ['FD', '1', 'RadiationBeamCompensatorMillingToolDiameter'],\n '066A': ['SQ', '1', 'BlockDefinitionSequence'],\n '066B': ['OF', '1', 'BlockEdgeData'],\n '066C': ['CS', '1', 'BlockOrientation'],\n '066D': ['FD', '1', 'RadiationBeamBlockThickness'],\n '066E': ['FD', '1', 'RadiationBeamBlockSlabThickness'],\n '066F': ['SQ', '1', 'BlockEdgeDataSequence'],\n '0670': ['US', '1', 'NumberOfRTAccessoryHolders'],\n '0671': ['SQ', '1', 'GeneralAccessoryDefinitionSequence'],\n '0672': ['US', '1', 'NumberOfGeneralAccessories'],\n '0673': ['SQ', '1', 'BolusDefinitionSequence'],\n '0674': ['US', '1', 'NumberOfBoluses'],\n '0675': ['UI', '1', 'EquipmentFrameOfReferenceUID'],\n '0676': ['ST', '1', 'EquipmentFrameOfReferenceDescription'],\n '0677': ['SQ', '1', 'EquipmentReferencePointCoordinatesSequence'],\n '0678': ['SQ', '1', 'EquipmentReferencePointCodeSequence'],\n '0679': ['FD', '1', 'RTBeamLimitingDeviceAngle'],\n '067A': ['FD', '1', 'SourceRollAngle'],\n '067B': ['SQ', '1', 'RadiationGenerationModeSequence'],\n '067C': ['SH', '1', 'RadiationGenerationModeLabel'],\n '067D': ['ST', '1', 'RadiationGenerationModeDescription'],\n '067E': ['SQ', '1', 'RadiationGenerationModeMachineCodeSequence'],\n '067F': ['SQ', '1', 'RadiationTypeCodeSequence'],\n '0680': ['DS', '1', 'NominalEnergy'],\n '0681': ['DS', '1', 'MinimumNominalEnergy'],\n '0682': ['DS', '1', 'MaximumNominalEnergy'],\n '0683': ['SQ', '1', 'RadiationFluenceModifierCodeSequence'],\n '0684': ['SQ', '1', 'EnergyUnitCodeSequence'],\n '0685': ['US', '1', 'NumberOfRadiationGenerationModes'],\n '0686': ['SQ', '1', 'PatientSupportDevicesSequence'],\n '0687': ['US', '1', 'NumberOfPatientSupportDevices'],\n '0688': ['FD', '1', 'RTBeamModifierDefinitionDistance'],\n '0689': ['SQ', '1', 'BeamAreaLimitSequence'],\n '068A': ['SQ', '1', 'ReferencedRTPrescriptionSequence'],\n '0700': ['UI', '1', 'TreatmentSessionUID'],\n '0701': ['CS', '1', 'RTRadiationUsage'],\n '0702': ['SQ', '1', 'ReferencedRTRadiationSetSequence'],\n '0703': ['SQ', '1', 'ReferencedRTRadiationRecordSequence'],\n '0704': ['US', '1', 'RTRadiationSetDeliveryNumber'],\n '0705': ['US', '1', 'ClinicalFractionNumber'],\n '0706': ['CS', '1', 'RTTreatmentFractionCompletionStatus'],\n '0707': ['CS', '1', 'RTRadiationSetUsage'],\n '0708': ['CS', '1', 'TreatmentDeliveryContinuationFlag'],\n '0709': ['CS', '1', 'TreatmentRecordContentOrigin'],\n '0714': ['CS', '1', 'RTTreatmentTerminationStatus'],\n '0715': ['SQ', '1', 'RTTreatmentTerminationReasonCodeSequence'],\n '0716': ['SQ', '1', 'MachineSpecificTreatmentTerminationCodeSequence'],\n '0722': ['SQ', '1', 'RTRadiationSalvageRecordControlPointSequence'],\n '0723': ['CS', '1', 'StartingMetersetValueKnownFlag'],\n '0730': ['ST', '1', 'TreatmentTerminationDescription'],\n '0731': ['SQ', '1', 'TreatmentToleranceViolationSequence'],\n '0732': ['CS', '1', 'TreatmentToleranceViolationCategory'],\n '0733': ['SQ', '1', 'TreatmentToleranceViolationAttributeSequence'],\n '0734': ['ST', '1', 'TreatmentToleranceViolationDescription'],\n '0735': ['ST', '1', 'TreatmentToleranceViolationIdentification'],\n '0736': ['DT', '1', 'TreatmentToleranceViolationDateTime'],\n '073A': ['DT', '1', 'RecordedRTControlPointDateTime'],\n '073B': ['US', '1', 'ReferencedRadiationRTControlPointIndex'],\n '073E': ['SQ', '1', 'AlternateValueSequence'],\n '073F': ['SQ', '1', 'ConfirmationSequence'],\n '0740': ['SQ', '1', 'InterlockSequence'],\n '0741': ['DT', '1', 'InterlockDateTime'],\n '0742': ['ST', '1', 'InterlockDescription'],\n '0743': ['SQ', '1', 'InterlockOriginatingDeviceSequence'],\n '0744': ['SQ', '1', 'InterlockCodeSequence'],\n '0745': ['SQ', '1', 'InterlockResolutionCodeSequence'],\n '0746': ['SQ', '1', 'InterlockResolutionUserSequence'],\n '0760': ['DT', '1', 'OverrideDateTime'],\n '0761': ['SQ', '1', 'TreatmentToleranceViolationTypeCodeSequence'],\n '0762': ['SQ', '1', 'TreatmentToleranceViolationCauseCodeSequence'],\n '0772': ['SQ', '1', 'MeasuredMetersetToDoseMappingSequence'],\n '0773': ['US', '1', 'ReferencedExpectedInVivoMeasurementValueIndex'],\n '0774': ['SQ', '1', 'DoseMeasurementDeviceCodeSequence'],\n '0780': ['SQ', '1', 'AdditionalParameterRecordingInstanceSequence'],\n '0782': ['US', '1', ''],\n '0783': ['ST', '1', 'InterlockOriginDescription'],\n '0784': ['SQ', '1', 'RTPatientPositionScopeSequence'],\n '0785': ['UI', '1', 'ReferencedTreatmentPositionGroupUID'],\n '0786': ['US', '1', 'RadiationOrderIndex'],\n '0787': ['SQ', '1', 'OmittedRadiationSequence'],\n '0788': ['SQ', '1', 'ReasonForOmissionCodeSequence'],\n '0789': ['SQ', '1', 'RTDeliveryStartPatientPositionSequence'],\n '078A': ['SQ', '1', 'RTTreatmentPreparationPatientPositionSequence'],\n '078B': ['SQ', '1', 'ReferencedRTTreatmentPreparationSequence'],\n '078C': ['SQ', '1', 'ReferencedPatientSetupPhotoSequence'],\n '078D': ['SQ', '1', 'PatientTreatmentPreparationMethodCodeSequence'],\n '078E': ['LT', '1', 'PatientTreatmentPreparationProcedureParameterDescription'],\n '078F': ['SQ', '1', 'PatientTreatmentPreparationDeviceSequence'],\n '0790': ['SQ', '1', 'PatientTreatmentPreparationProcedureSequence'],\n '0791': ['SQ', '1', 'PatientTreatmentPreparationProcedureCodeSequence'],\n '0792': ['LT', '1', 'PatientTreatmentPreparationMethodDescription'],\n '0793': ['SQ', '1', 'PatientTreatmentPreparationProcedureParameterSequence'],\n '0794': ['LT', '1', 'PatientSetupPhotoDescription'],\n '0795': ['US', '1', 'PatientTreatmentPreparationProcedureIndex'],\n '0796': ['US', '1', 'ReferencedPatientSetupProcedureIndex'],\n '0797': ['SQ', '1', 'RTRadiationTaskSequence'],\n '0798': ['SQ', '1', 'RTPatientPositionDisplacementSequence'],\n '0799': ['SQ', '1', 'RTPatientPositionSequence'],\n '079A': ['LO', '1', 'DisplacementReferenceLabel'],\n '079B': ['FD', '16', 'DisplacementMatrix'],\n '079C': ['SQ', '1', 'PatientSupportDisplacementSequence'],\n '079D': ['SQ', '1', 'DisplacementReferenceLocationCodeSequence'],\n '079E': ['CS', '1', 'RTRadiationSetDeliveryUsage']\n },\n '300C': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SQ', '1', 'ReferencedRTPlanSequence'],\n '0004': ['SQ', '1', 'ReferencedBeamSequence'],\n '0006': ['IS', '1', 'ReferencedBeamNumber'],\n '0007': ['IS', '1', 'ReferencedReferenceImageNumber'],\n '0008': ['DS', '1', 'StartCumulativeMetersetWeight'],\n '0009': ['DS', '1', 'EndCumulativeMetersetWeight'],\n '000A': ['SQ', '1', 'ReferencedBrachyApplicationSetupSequence'],\n '000C': ['IS', '1', 'ReferencedBrachyApplicationSetupNumber'],\n '000E': ['IS', '1', 'ReferencedSourceNumber'],\n '0020': ['SQ', '1', 'ReferencedFractionGroupSequence'],\n '0022': ['IS', '1', 'ReferencedFractionGroupNumber'],\n '0040': ['SQ', '1', 'ReferencedVerificationImageSequence'],\n '0042': ['SQ', '1', 'ReferencedReferenceImageSequence'],\n '0050': ['SQ', '1', 'ReferencedDoseReferenceSequence'],\n '0051': ['IS', '1', 'ReferencedDoseReferenceNumber'],\n '0055': ['SQ', '1', 'BrachyReferencedDoseReferenceSequence'],\n '0060': ['SQ', '1', 'ReferencedStructureSetSequence'],\n '006A': ['IS', '1', 'ReferencedPatientSetupNumber'],\n '0080': ['SQ', '1', 'ReferencedDoseSequence'],\n '00A0': ['IS', '1', 'ReferencedToleranceTableNumber'],\n '00B0': ['SQ', '1', 'ReferencedBolusSequence'],\n '00C0': ['IS', '1', 'ReferencedWedgeNumber'],\n '00D0': ['IS', '1', 'ReferencedCompensatorNumber'],\n '00E0': ['IS', '1', 'ReferencedBlockNumber'],\n '00F0': ['IS', '1', 'ReferencedControlPointIndex'],\n '00F2': ['SQ', '1', 'ReferencedControlPointSequence'],\n '00F4': ['IS', '1', 'ReferencedStartControlPointIndex'],\n '00F6': ['IS', '1', 'ReferencedStopControlPointIndex'],\n '0100': ['IS', '1', 'ReferencedRangeShifterNumber'],\n '0102': ['IS', '1', 'ReferencedLateralSpreadingDeviceNumber'],\n '0104': ['IS', '1', 'ReferencedRangeModulatorNumber'],\n '0111': ['SQ', '1', 'OmittedBeamTaskSequence'],\n '0112': ['CS', '1', 'ReasonForOmission'],\n '0113': ['LO', '1', 'ReasonForOmissionDescription'],\n '0114': ['SQ', '1', 'PrescriptionOverviewSequence'],\n '0115': ['FL', '1', 'TotalPrescriptionDose'],\n '0116': ['SQ', '1', 'PlanOverviewSequence'],\n '0117': ['US', '1', 'PlanOverviewIndex'],\n '0118': ['US', '1', 'ReferencedPlanOverviewIndex'],\n '0119': ['US', '1', 'NumberOfFractionsIncluded'],\n '0120': ['SQ', '1', 'DoseCalibrationConditionsSequence'],\n '0121': ['FD', '1', 'AbsorbedDoseToMetersetRatio'],\n '0122': ['FD', '2', 'DelineatedRadiationFieldSize'],\n '0123': ['CS', '1', 'DoseCalibrationConditionsVerifiedFlag'],\n '0124': ['FD', '1', 'CalibrationReferencePointDepth'],\n '0125': ['SQ', '1', 'GatingBeamHoldTransitionSequence'],\n '0126': ['CS', '1', 'BeamHoldTransition'],\n '0127': ['DT', '1', 'BeamHoldTransitionDateTime'],\n '0128': ['SQ', '1', 'BeamHoldOriginatingDeviceSequence']\n },\n '300E': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['CS', '1', 'ApprovalStatus'],\n '0004': ['DA', '1', 'ReviewDate'],\n '0005': ['TM', '1', 'ReviewTime'],\n '0008': ['PN', '1', 'ReviewerName']\n },\n '3010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'RadiobiologicalDoseEffectSequence'],\n '0002': ['CS', '1', 'RadiobiologicalDoseEffectFlag'],\n '0003': ['SQ', '1', 'EffectiveDoseCalculationMethodCategoryCodeSequence'],\n '0004': ['SQ', '1', 'EffectiveDoseCalculationMethodCodeSequence'],\n '0005': ['LO', '1', 'EffectiveDoseCalculationMethodDescription'],\n '0006': ['UI', '1', 'ConceptualVolumeUID'],\n '0007': ['SQ', '1', 'OriginatingSOPInstanceReferenceSequence'],\n '0008': ['SQ', '1', 'ConceptualVolumeConstituentSequence'],\n '0009': ['SQ', '1', 'EquivalentConceptualVolumeInstanceReferenceSequence'],\n '000A': ['SQ', '1', 'EquivalentConceptualVolumesSequence'],\n '000B': ['UI', '1', 'ReferencedConceptualVolumeUID'],\n '000C': ['UT', '1', 'ConceptualVolumeCombinationExpression'],\n '000D': ['US', '1', 'ConceptualVolumeConstituentIndex'],\n '000E': ['CS', '1', 'ConceptualVolumeCombinationFlag'],\n '000F': ['ST', '1', 'ConceptualVolumeCombinationDescription'],\n '0010': ['CS', '1', 'ConceptualVolumeSegmentationDefinedFlag'],\n '0011': ['SQ', '1', 'ConceptualVolumeSegmentationReferenceSequence'],\n '0012': ['SQ', '1', 'ConceptualVolumeConstituentSegmentationReferenceSequence'],\n '0013': ['UI', '1', 'ConstituentConceptualVolumeUID'],\n '0014': ['SQ', '1', 'DerivationConceptualVolumeSequence'],\n '0015': ['UI', '1', 'SourceConceptualVolumeUID'],\n '0016': ['SQ', '1', 'ConceptualVolumeDerivationAlgorithmSequence'],\n '0017': ['ST', '1', 'ConceptualVolumeDescription'],\n '0018': ['SQ', '1', 'SourceConceptualVolumeSequence'],\n '0019': ['SQ', '1', 'AuthorIdentificationSequence'],\n '001A': ['LO', '1', 'ManufacturerModelVersion'],\n '001B': ['UC', '1', 'DeviceAlternateIdentifier'],\n '001C': ['CS', '1', 'DeviceAlternateIdentifierType'],\n '001D': ['LT', '1', 'DeviceAlternateIdentifierFormat'],\n '001E': ['LO', '1', 'SegmentationCreationTemplateLabel'],\n '001F': ['UI', '1', 'SegmentationTemplateUID'],\n '0020': ['US', '1', 'ReferencedSegmentReferenceIndex'],\n '0021': ['SQ', '1', 'SegmentReferenceSequence'],\n '0022': ['US', '1', 'SegmentReferenceIndex'],\n '0023': ['SQ', '1', 'DirectSegmentReferenceSequence'],\n '0024': ['SQ', '1', 'CombinationSegmentReferenceSequence'],\n '0025': ['SQ', '1', 'ConceptualVolumeSequence'],\n '0026': ['SQ', '1', 'SegmentedRTAccessoryDeviceSequence'],\n '0027': ['SQ', '1', 'SegmentCharacteristicsSequence'],\n '0028': ['SQ', '1', 'RelatedSegmentCharacteristicsSequence'],\n '0029': ['US', '1', 'SegmentCharacteristicsPrecedence'],\n '002A': ['SQ', '1', 'RTSegmentAnnotationSequence'],\n '002B': ['SQ', '1', 'SegmentAnnotationCategoryCodeSequence'],\n '002C': ['SQ', '1', 'SegmentAnnotationTypeCodeSequence'],\n '002D': ['LO', '1', 'DeviceLabel'],\n '002E': ['SQ', '1', 'DeviceTypeCodeSequence'],\n '002F': ['SQ', '1', 'SegmentAnnotationTypeModifierCodeSequence'],\n '0030': ['SQ', '1', 'PatientEquipmentRelationshipCodeSequence'],\n '0031': ['UI', '1', 'ReferencedFiducialsUID'],\n '0032': ['SQ', '1', 'PatientTreatmentOrientationSequence'],\n '0033': ['SH', '1', 'UserContentLabel'],\n '0034': ['LO', '1', 'UserContentLongLabel'],\n '0035': ['SH', '1', 'EntityLabel'],\n '0036': ['LO', '1', 'EntityName'],\n '0037': ['ST', '1', 'EntityDescription'],\n '0038': ['LO', '1', 'EntityLongLabel'],\n '0039': ['US', '1', 'DeviceIndex'],\n '003A': ['US', '1', 'RTTreatmentPhaseIndex'],\n '003B': ['UI', '1', 'RTTreatmentPhaseUID'],\n '003C': ['US', '1', 'RTPrescriptionIndex'],\n '003D': ['US', '1', 'RTSegmentAnnotationIndex'],\n '003E': ['US', '1', 'BasisRTTreatmentPhaseIndex'],\n '003F': ['US', '1', 'RelatedRTTreatmentPhaseIndex'],\n '0040': ['US', '1', 'ReferencedRTTreatmentPhaseIndex'],\n '0041': ['US', '1', 'ReferencedRTPrescriptionIndex'],\n '0042': ['US', '1', 'ReferencedParentRTPrescriptionIndex'],\n '0043': ['ST', '1', 'ManufacturerDeviceIdentifier'],\n '0044': ['SQ', '1', 'InstanceLevelReferencedPerformedProcedureStepSequence'],\n '0045': ['CS', '1', 'RTTreatmentPhaseIntentPresenceFlag'],\n '0046': ['CS', '1', 'RadiotherapyTreatmentType'],\n '0047': ['CS', '1-n', 'TeletherapyRadiationType'],\n '0048': ['CS', '1-n', 'BrachytherapySourceType'],\n '0049': ['SQ', '1', 'ReferencedRTTreatmentPhaseSequence'],\n '004A': ['SQ', '1', 'ReferencedDirectSegmentInstanceSequence'],\n '004B': ['SQ', '1', 'IntendedRTTreatmentPhaseSequence'],\n '004C': ['DA', '1', 'IntendedPhaseStartDate'],\n '004D': ['DA', '1', 'IntendedPhaseEndDate'],\n '004E': ['SQ', '1', 'RTTreatmentPhaseIntervalSequence'],\n '004F': ['CS', '1', 'TemporalRelationshipIntervalAnchor'],\n '0050': ['FD', '1', 'MinimumNumberOfIntervalDays'],\n '0051': ['FD', '1', 'MaximumNumberOfIntervalDays'],\n '0052': ['UI', '1-n', 'PertinentSOPClassesInStudy'],\n '0053': ['UI', '1-n', 'PertinentSOPClassesInSeries'],\n '0054': ['LO', '1', 'RTPrescriptionLabel'],\n '0055': ['SQ', '1', 'RTPhysicianIntentPredecessorSequence'],\n '0056': ['LO', '1', 'RTTreatmentApproachLabel'],\n '0057': ['SQ', '1', 'RTPhysicianIntentSequence'],\n '0058': ['US', '1', 'RTPhysicianIntentIndex'],\n '0059': ['CS', '1', 'RTTreatmentIntentType'],\n '005A': ['UT', '1', 'RTPhysicianIntentNarrative'],\n '005B': ['SQ', '1', 'RTProtocolCodeSequence'],\n '005C': ['ST', '1', 'ReasonForSuperseding'],\n '005D': ['SQ', '1', 'RTDiagnosisCodeSequence'],\n '005E': ['US', '1', 'ReferencedRTPhysicianIntentIndex'],\n '005F': ['SQ', '1', 'RTPhysicianIntentInputInstanceSequence'],\n '0060': ['SQ', '1', 'RTAnatomicPrescriptionSequence'],\n '0061': ['UT', '1', 'PriorTreatmentDoseDescription'],\n '0062': ['SQ', '1', 'PriorTreatmentReferenceSequence'],\n '0063': ['CS', '1', 'DosimetricObjectiveEvaluationScope'],\n '0064': ['SQ', '1', 'TherapeuticRoleCategoryCodeSequence'],\n '0065': ['SQ', '1', 'TherapeuticRoleTypeCodeSequence'],\n '0066': ['US', '1', 'ConceptualVolumeOptimizationPrecedence'],\n '0067': ['SQ', '1', 'ConceptualVolumeCategoryCodeSequence'],\n '0068': ['CS', '1', 'ConceptualVolumeBlockingConstraint'],\n '0069': ['SQ', '1', 'ConceptualVolumeTypeCodeSequence'],\n '006A': ['SQ', '1', 'ConceptualVolumeTypeModifierCodeSequence'],\n '006B': ['SQ', '1', 'RTPrescriptionSequence'],\n '006C': ['SQ', '1', 'DosimetricObjectiveSequence'],\n '006D': ['SQ', '1', 'DosimetricObjectiveTypeCodeSequence'],\n '006E': ['UI', '1', 'DosimetricObjectiveUID'],\n '006F': ['UI', '1', 'ReferencedDosimetricObjectiveUID'],\n '0070': ['SQ', '1', 'DosimetricObjectiveParameterSequence'],\n '0071': ['SQ', '1', 'ReferencedDosimetricObjectivesSequence'],\n '0073': ['CS', '1', 'AbsoluteDosimetricObjectiveFlag'],\n '0074': ['FD', '1', 'DosimetricObjectiveWeight'],\n '0075': ['CS', '1', 'DosimetricObjectivePurpose'],\n '0076': ['SQ', '1', 'PlanningInputInformationSequence'],\n '0077': ['LO', '1', 'TreatmentSite'],\n '0078': ['SQ', '1', 'TreatmentSiteCodeSequence'],\n '0079': ['SQ', '1', 'FractionPatternSequence'],\n '007A': ['UT', '1', 'TreatmentTechniqueNotes'],\n '007B': ['UT', '1', 'PrescriptionNotes'],\n '007C': ['IS', '1', 'NumberOfIntervalFractions'],\n '007D': ['US', '1', 'NumberOfFractions'],\n '007E': ['US', '1', 'IntendedDeliveryDuration'],\n '007F': ['UT', '1', 'FractionationNotes'],\n '0080': ['SQ', '1', 'RTTreatmentTechniqueCodeSequence'],\n '0081': ['SQ', '1', 'PrescriptionNotesSequence'],\n '0082': ['SQ', '1', 'FractionBasedRelationshipSequence'],\n '0083': ['CS', '1', 'FractionBasedRelationshipIntervalAnchor'],\n '0084': ['FD', '1', 'MinimumHoursBetweenFractions'],\n '0085': ['TM', '1-n', 'IntendedFractionStartTime'],\n '0086': ['LT', '1', 'IntendedStartDayOfWeek'],\n '0087': ['SQ', '1', 'WeekdayFractionPatternSequence'],\n '0088': ['SQ', '1', 'DeliveryTimeStructureCodeSequence'],\n '0089': ['SQ', '1', 'TreatmentSiteModifierCodeSequence'],\n '0090': ['CS', '1', 'RoboticBaseLocationIndicator'],\n '0091': ['SQ', '1', 'RoboticPathNodeSetCodeSequence'],\n '0092': ['UL', '1', 'RoboticNodeIdentifier'],\n '0093': ['FD', '3', 'RTTreatmentSourceCoordinates'],\n '0094': ['FD', '1', 'RadiationSourceCoordinateSystemYawAngle'],\n '0095': ['FD', '1', 'RadiationSourceCoordinateSystemRollAngle'],\n '0096': ['FD', '1', 'RadiationSourceCoordinateSystemPitchAngle'],\n '0097': ['SQ', '1', 'RoboticPathControlPointSequence'],\n '0098': ['SQ', '1', 'TomotherapeuticControlPointSequence'],\n '0099': ['FD', '1-n', 'TomotherapeuticLeafOpenDurations'],\n '009A': ['FD', '1-n', 'TomotherapeuticLeafInitialClosedDurations']\n },\n '4000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['LT', '1', 'Arbitrary'],\n '4000': ['LT', '1', 'TextComments']\n },\n '4008': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0040': ['SH', '1', 'ResultsID'],\n '0042': ['LO', '1', 'ResultsIDIssuer'],\n '0050': ['SQ', '1', 'ReferencedInterpretationSequence'],\n '00FF': ['CS', '1', 'ReportProductionStatusTrial'],\n '0100': ['DA', '1', 'InterpretationRecordedDate'],\n '0101': ['TM', '1', 'InterpretationRecordedTime'],\n '0102': ['PN', '1', 'InterpretationRecorder'],\n '0103': ['LO', '1', 'ReferenceToRecordedSound'],\n '0108': ['DA', '1', 'InterpretationTranscriptionDate'],\n '0109': ['TM', '1', 'InterpretationTranscriptionTime'],\n '010A': ['PN', '1', 'InterpretationTranscriber'],\n '010B': ['ST', '1', 'InterpretationText'],\n '010C': ['PN', '1', 'InterpretationAuthor'],\n '0111': ['SQ', '1', 'InterpretationApproverSequence'],\n '0112': ['DA', '1', 'InterpretationApprovalDate'],\n '0113': ['TM', '1', 'InterpretationApprovalTime'],\n '0114': ['PN', '1', 'PhysicianApprovingInterpretation'],\n '0115': ['LT', '1', 'InterpretationDiagnosisDescription'],\n '0117': ['SQ', '1', 'InterpretationDiagnosisCodeSequence'],\n '0118': ['SQ', '1', 'ResultsDistributionListSequence'],\n '0119': ['PN', '1', 'DistributionName'],\n '011A': ['LO', '1', 'DistributionAddress'],\n '0200': ['SH', '1', 'InterpretationID'],\n '0202': ['LO', '1', 'InterpretationIDIssuer'],\n '0210': ['CS', '1', 'InterpretationTypeID'],\n '0212': ['CS', '1', 'InterpretationStatusID'],\n '0300': ['ST', '1', 'Impressions'],\n '4000': ['ST', '1', 'ResultsComments']\n },\n '4010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'LowEnergyDetectors'],\n '0002': ['CS', '1', 'HighEnergyDetectors'],\n '0004': ['SQ', '1', 'DetectorGeometrySequence'],\n '1001': ['SQ', '1', 'ThreatROIVoxelSequence'],\n '1004': ['FL', '3', 'ThreatROIBase'],\n '1005': ['FL', '3', 'ThreatROIExtents'],\n '1006': ['OB', '1', 'ThreatROIBitmap'],\n '1007': ['SH', '1', 'RouteSegmentID'],\n '1008': ['CS', '1', 'GantryType'],\n '1009': ['CS', '1', 'OOIOwnerType'],\n '100A': ['SQ', '1', 'RouteSegmentSequence'],\n '1010': ['US', '1', 'PotentialThreatObjectID'],\n '1011': ['SQ', '1', 'ThreatSequence'],\n '1012': ['CS', '1', 'ThreatCategory'],\n '1013': ['LT', '1', 'ThreatCategoryDescription'],\n '1014': ['CS', '1', 'ATDAbilityAssessment'],\n '1015': ['CS', '1', 'ATDAssessmentFlag'],\n '1016': ['FL', '1', 'ATDAssessmentProbability'],\n '1017': ['FL', '1', 'Mass'],\n '1018': ['FL', '1', 'Density'],\n '1019': ['FL', '1', 'ZEffective'],\n '101A': ['SH', '1', 'BoardingPassID'],\n '101B': ['FL', '3', 'CenterOfMass'],\n '101C': ['FL', '3', 'CenterOfPTO'],\n '101D': ['FL', '6-n', 'BoundingPolygon'],\n '101E': ['SH', '1', 'RouteSegmentStartLocationID'],\n '101F': ['SH', '1', 'RouteSegmentEndLocationID'],\n '1020': ['CS', '1', 'RouteSegmentLocationIDType'],\n '1021': ['CS', '1-n', 'AbortReason'],\n '1023': ['FL', '1', 'VolumeOfPTO'],\n '1024': ['CS', '1', 'AbortFlag'],\n '1025': ['DT', '1', 'RouteSegmentStartTime'],\n '1026': ['DT', '1', 'RouteSegmentEndTime'],\n '1027': ['CS', '1', 'TDRType'],\n '1028': ['CS', '1', 'InternationalRouteSegment'],\n '1029': ['LO', '1-n', 'ThreatDetectionAlgorithmAndVersion'],\n '102A': ['SH', '1', 'AssignedLocation'],\n '102B': ['DT', '1', 'AlarmDecisionTime'],\n '1031': ['CS', '1', 'AlarmDecision'],\n '1033': ['US', '1', 'NumberOfTotalObjects'],\n '1034': ['US', '1', 'NumberOfAlarmObjects'],\n '1037': ['SQ', '1', 'PTORepresentationSequence'],\n '1038': ['SQ', '1', 'ATDAssessmentSequence'],\n '1039': ['CS', '1', 'TIPType'],\n '103A': ['CS', '1', 'DICOSVersion'],\n '1041': ['DT', '1', 'OOIOwnerCreationTime'],\n '1042': ['CS', '1', 'OOIType'],\n '1043': ['FL', '3', 'OOISize'],\n '1044': ['CS', '1', 'AcquisitionStatus'],\n '1045': ['SQ', '1', 'BasisMaterialsCodeSequence'],\n '1046': ['CS', '1', 'PhantomType'],\n '1047': ['SQ', '1', 'OOIOwnerSequence'],\n '1048': ['CS', '1', 'ScanType'],\n '1051': ['LO', '1', 'ItineraryID'],\n '1052': ['SH', '1', 'ItineraryIDType'],\n '1053': ['LO', '1', 'ItineraryIDAssigningAuthority'],\n '1054': ['SH', '1', 'RouteID'],\n '1055': ['SH', '1', 'RouteIDAssigningAuthority'],\n '1056': ['CS', '1', 'InboundArrivalType'],\n '1058': ['SH', '1', 'CarrierID'],\n '1059': ['CS', '1', 'CarrierIDAssigningAuthority'],\n '1060': ['FL', '3', 'SourceOrientation'],\n '1061': ['FL', '3', 'SourcePosition'],\n '1062': ['FL', '1', 'BeltHeight'],\n '1064': ['SQ', '1', 'AlgorithmRoutingCodeSequence'],\n '1067': ['CS', '1', 'TransportClassification'],\n '1068': ['LT', '1', 'OOITypeDescriptor'],\n '1069': ['FL', '1', 'TotalProcessingTime'],\n '106C': ['OB', '1', 'DetectorCalibrationData'],\n '106D': ['CS', '1', 'AdditionalScreeningPerformed'],\n '106E': ['CS', '1', 'AdditionalInspectionSelectionCriteria'],\n '106F': ['SQ', '1', 'AdditionalInspectionMethodSequence'],\n '1070': ['CS', '1', 'AITDeviceType'],\n '1071': ['SQ', '1', 'QRMeasurementsSequence'],\n '1072': ['SQ', '1', 'TargetMaterialSequence'],\n '1073': ['FD', '1', 'SNRThreshold'],\n '1075': ['DS', '1', 'ImageScaleRepresentation'],\n '1076': ['SQ', '1', 'ReferencedPTOSequence'],\n '1077': ['SQ', '1', 'ReferencedTDRInstanceSequence'],\n '1078': ['ST', '1', 'PTOLocationDescription'],\n '1079': ['SQ', '1', 'AnomalyLocatorIndicatorSequence'],\n '107A': ['FL', '3', 'AnomalyLocatorIndicator'],\n '107B': ['SQ', '1', 'PTORegionSequence'],\n '107C': ['CS', '1', 'InspectionSelectionCriteria'],\n '107D': ['SQ', '1', 'SecondaryInspectionMethodSequence'],\n '107E': ['DS', '6', 'PRCSToRCSOrientation']\n },\n '4FFE': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'MACParametersSequence']\n },\n '5000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0005': ['US', '1', 'CurveDimensions'],\n '0010': ['US', '1', 'NumberOfPoints'],\n '0020': ['CS', '1', 'TypeOfData'],\n '0022': ['LO', '1', 'CurveDescription'],\n '0030': ['SH', '1-n', 'AxisUnits'],\n '0040': ['SH', '1-n', 'AxisLabels'],\n '0103': ['US', '1', 'DataValueRepresentation'],\n '0104': ['US', '1-n', 'MinimumCoordinateValue'],\n '0105': ['US', '1-n', 'MaximumCoordinateValue'],\n '0106': ['SH', '1-n', 'CurveRange'],\n '0110': ['US', '1-n', 'CurveDataDescriptor'],\n '0112': ['US', '1-n', 'CoordinateStartValue'],\n '0114': ['US', '1-n', 'CoordinateStepValue'],\n '1001': ['CS', '1', 'CurveActivationLayer'],\n '2000': ['US', '1', 'AudioType'],\n '2002': ['US', '1', 'AudioSampleFormat'],\n '2004': ['US', '1', 'NumberOfChannels'],\n '2006': ['UL', '1', 'NumberOfSamples'],\n '2008': ['UL', '1', 'SampleRate'],\n '200A': ['UL', '1', 'TotalTime'],\n '200C': ['ox', '1', 'AudioSampleData'],\n '200E': ['LT', '1', 'AudioComments'],\n '2500': ['LO', '1', 'CurveLabel'],\n '2600': ['SQ', '1', 'CurveReferencedOverlaySequence'],\n '2610': ['US', '1', 'CurveReferencedOverlayGroup'],\n '3000': ['ox', '1', 'CurveData']\n },\n '5200': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '9229': ['SQ', '1', 'SharedFunctionalGroupsSequence'],\n '9230': ['SQ', '1', 'PerFrameFunctionalGroupsSequence']\n },\n '5400': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0100': ['SQ', '1', 'WaveformSequence'],\n '0110': ['ox', '1', 'ChannelMinimumValue'],\n '0112': ['ox', '1', 'ChannelMaximumValue'],\n '1004': ['US', '1', 'WaveformBitsAllocated'],\n '1006': ['CS', '1', 'WaveformSampleInterpretation'],\n '100A': ['ox', '1', 'WaveformPaddingValue'],\n '1010': ['ox', '1', 'WaveformData']\n },\n '5600': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['OF', '1', 'FirstOrderPhaseCorrectionAngle'],\n '0020': ['OF', '1', 'SpectroscopyData']\n },\n '6000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1', 'OverlayRows'],\n '0011': ['US', '1', 'OverlayColumns'],\n '0012': ['US', '1', 'OverlayPlanes'],\n '0015': ['IS', '1', 'NumberOfFramesInOverlay'],\n '0022': ['LO', '1', 'OverlayDescription'],\n '0040': ['CS', '1', 'OverlayType'],\n '0045': ['LO', '1', 'OverlaySubtype'],\n '0050': ['SS', '2', 'OverlayOrigin'],\n '0051': ['US', '1', 'ImageFrameOrigin'],\n '0052': ['US', '1', 'OverlayPlaneOrigin'],\n '0060': ['CS', '1', 'OverlayCompressionCode'],\n '0061': ['SH', '1', 'OverlayCompressionOriginator'],\n '0062': ['SH', '1', 'OverlayCompressionLabel'],\n '0063': ['CS', '1', 'OverlayCompressionDescription'],\n '0066': ['AT', '1-n', 'OverlayCompressionStepPointers'],\n '0068': ['US', '1', 'OverlayRepeatInterval'],\n '0069': ['US', '1', 'OverlayBitsGrouped'],\n '0100': ['US', '1', 'OverlayBitsAllocated'],\n '0102': ['US', '1', 'OverlayBitPosition'],\n '0110': ['CS', '1', 'OverlayFormat'],\n '0200': ['US', '1', 'OverlayLocation'],\n '0800': ['CS', '1-n', 'OverlayCodeLabel'],\n '0802': ['US', '1', 'OverlayNumberOfTables'],\n '0803': ['AT', '1-n', 'OverlayCodeTableLocation'],\n '0804': ['US', '1', 'OverlayBitsForCodeWord'],\n '1001': ['CS', '1', 'OverlayActivationLayer'],\n '1100': ['US', '1', 'OverlayDescriptorGray'],\n '1101': ['US', '1', 'OverlayDescriptorRed'],\n '1102': ['US', '1', 'OverlayDescriptorGreen'],\n '1103': ['US', '1', 'OverlayDescriptorBlue'],\n '1200': ['US', '1-n', 'OverlaysGray'],\n '1201': ['US', '1-n', 'OverlaysRed'],\n '1202': ['US', '1-n', 'OverlaysGreen'],\n '1203': ['US', '1-n', 'OverlaysBlue'],\n '1301': ['IS', '1', 'ROIArea'],\n '1302': ['DS', '1', 'ROIMean'],\n '1303': ['DS', '1', 'ROIStandardDeviation'],\n '1500': ['LO', '1', 'OverlayLabel'],\n '3000': ['ox', '1', 'OverlayData'],\n '4000': ['LT', '1', 'OverlayComments']\n },\n '7F00': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['ox', '1', 'VariablePixelData'],\n '0011': ['US', '1', 'VariableNextDataGroup'],\n '0020': ['OW', '1', 'VariableCoefficientsSDVN'],\n '0030': ['OW', '1', 'VariableCoefficientsSDHN'],\n '0040': ['OW', '1', 'VariableCoefficientsSDDN']\n },\n '7FE0': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['OV', '1', 'ExtendedOffsetTable'],\n '0002': ['OV', '1', 'ExtendedOffsetTableLengths'],\n '0008': ['OF', '1', 'FloatPixelData'],\n '0009': ['OD', '1', 'DoubleFloatPixelData'],\n '0010': ['ox', '1', 'PixelData'],\n '0020': ['OW', '1', 'CoefficientsSDVN'],\n '0030': ['OW', '1', 'CoefficientsSDHN'],\n '0040': ['OW', '1', 'CoefficientsSDDN']\n },\n 'FFFA': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n 'FFFA': ['SQ', '1', 'DigitalSignaturesSequence']\n },\n 'FFFC': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n 'FFFC': ['OB', '1', 'DataSetTrailingPadding']\n },\n 'FFFE': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n 'E000': ['NONE', '1', 'Item'],\n 'E00D': ['NONE', '1', 'ItemDelimitationItem'],\n 'E0DD': ['NONE', '1', 'SequenceDelimitationItem']\n }\n}; // Dictionary\n\n/**\n * Add tags to the dictionary.\n *\n * @param {string} group The group key.\n * @param {Object} tags The tags to add as an\n * object indexed by element key with values as:\n * [VR, multiplicity, TagName] (all strings).\n */\nexport function addTagsToDictionary(group, tags) {\n // TODO: add checks!\n dictionary[group] = tags;\n}\n\n/**\n * Tag groups: key to name pairs.\n * Copied from gdcm-2.6.1\\Source\\DataDictionary\\GroupName.dic\n * -> removed duplicates (commented).\n *\n * @type {Object}\n */\nexport const tagGroups = {\n '0000': 'Command',\n '0002': 'Meta Element',\n '0004': 'File Set',\n //'0004': 'Directory',\n '0008': 'Identifying',\n '0009': 'SPI Identifying',\n '0010': 'Patient',\n '0012': 'Clinical Trial',\n '0018': 'Acquisition',\n '0019': 'SPI Acquisition',\n '0020': 'Image',\n '0021': 'SPI Image',\n '0022': 'Ophtalmology',\n '0028': 'Image Presentation',\n '0032': 'Study',\n '0038': 'Visit',\n '003A': 'Waveform',\n '0040': 'Procedure',\n //'0040': ''Modality Worklist',\n '0042': 'Encapsulated Document',\n '0050': 'Device Informations',\n //'0050': 'XRay Angio Device',\n '0054': 'Nuclear Medicine',\n '0060': 'Histogram',\n '0070': 'Presentation State',\n '0072': 'Hanging Protocol',\n '0088': 'Storage',\n //'0088': 'Medicine',\n '0100': 'Authorization',\n '0400': 'Digital Signature',\n '1000': 'Code Table',\n '1010': 'Zonal Map',\n '2000': 'Film Session',\n '2010': 'Film Box',\n '2020': 'Image Box',\n '2030': 'Annotation',\n '2040': 'Overlay Box',\n '2050': 'Presentation LUT',\n '2100': 'Print Job',\n '2110': 'Printer',\n '2120': 'Queue',\n '2130': 'Print Content',\n '2200': 'Media Creation',\n '3002': 'RT Image',\n '3004': 'RT Dose',\n '3006': 'RT StructureSet',\n '3008': 'RT Treatment',\n '300A': 'RT Plan',\n '300C': 'RT Relationship',\n '300E': 'RT Approval',\n '4000': 'Text',\n '4008': 'Results',\n '4FFE': 'MAC Parameters',\n '5000': 'Curve',\n '5002': 'Curve',\n '5004': 'Curve',\n '5006': 'Curve',\n '5008': 'Curve',\n '500A': 'Curve',\n '500C': 'Curve',\n '500E': 'Curve',\n '5400': 'Waveform Data',\n '6000': 'Overlays',\n '6002': 'Overlays',\n '6004': 'Overlays',\n '6008': 'Overlays',\n '600A': 'Overlays',\n '600C': 'Overlays',\n '600E': 'Overlays',\n 'FFFC': 'Generic',\n '7FE0': 'Pixel Data',\n 'FFFF': 'Unknown'\n};\n\n/**\n * List of Value Representation (VR) with 32bit Value Length (VL).\n *\n * Added locally used 'ox'.\n * See {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_7.html#table_7.1-1}.\n *\n * @type {Object}\n */\nconst vr32bitVL = {\n OB: true,\n OD: true,\n OF: true,\n OL: true,\n OV: true,\n OW: true,\n SQ: true,\n SV: true,\n UC: true,\n UN: true,\n UR: true,\n UT: true,\n UV: true,\n ox: true\n};\n\n/**\n * Does the input Value Representation (VR) have a 32bit Value Length (VL).\n *\n * @param {string} vr The data Value Representation (VR).\n * @returns {boolean} True if this VR has a 32-bit VL.\n */\nexport function is32bitVLVR(vr) {\n return typeof vr32bitVL[vr] !== 'undefined';\n}\n\n/**\n * List of string VR with extended or replaced default character repertoire defined in\n * Specific Character Set (0008,0005).\n *\n * See {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_6.html#sect_6.1.2.2}.\n *\n * @type {Object}\n */\nconst vrCharSetString = {\n SH: true,\n LO: true,\n UC: true,\n ST: true,\n LT: true,\n UT: true,\n PN: true\n};\n\n/**\n * Does the input Value Representation (VR) have an special character repertoire.\n *\n * @param {string} vr The data VR.\n * @returns {boolean} True if this VR has a special char set.\n */\nexport function isCharSetStringVR(vr) {\n return typeof vrCharSetString[vr] !== 'undefined';\n}\n\n/**\n * VR equivalent javascript types.\n *\n * See {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_6.2.html#table_6.2-1}.\n *\n * @type {Object}\n */\nexport const vrTypes = {\n AE: 'string',\n AS: 'string',\n AT: undefined,\n CS: 'string',\n DA: 'string',\n DS: 'string',\n DT: 'string',\n FL: 'Float32',\n FD: 'Float64',\n IS: 'string',\n LO: 'string',\n LT: 'string',\n OB: 'Uint8',\n OD: 'Uint64',\n OF: 'Uint32',\n OL: 'Uint32',\n OV: 'Uint64',\n OW: 'Uint16',\n PN: 'string',\n SH: 'string',\n SL: 'Int32',\n SQ: undefined,\n SS: 'Int16',\n ST: 'string',\n SV: 'Int64',\n TM: 'string',\n UC: 'string',\n UI: 'string',\n UL: 'Uint32',\n UN: 'Uint8',\n UR: 'string',\n US: 'Uint16',\n UT: 'string',\n UV: 'Uint64'\n};\n\n/**\n * Transfer syntaxes.\n *\n * See {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part06/chapter_A.html#table_A-1}.\n *\n * @type {Object}\n */\nexport const transferSyntaxes = {\n '1.2.840.10008.1.2': 'Implicit VR Little Endian',\n '1.2.840.10008.1.2.1': 'Explicit VR Little Endian',\n '1.2.840.10008.1.2.1.98': 'Encapsulated Uncompressed Explicit VR Little Endian',\n '1.2.840.10008.1.2.1.99': 'Deflated Explicit VR Little Endian',\n '1.2.840.10008.1.2.2': 'Explicit VR Big Endian (Retired)',\n '1.2.840.10008.1.2.4.50': 'JPEG Baseline (Process 1)',\n '1.2.840.10008.1.2.4.51': 'JPEG Extended (Process 2 & 4)',\n '1.2.840.10008.1.2.4.52': 'JPEG Extended (Process 3 & 5) (Retired)',\n '1.2.840.10008.1.2.4.53': 'JPEG Spectral Selection, Non-Hierarchical (Process 6 & 8) (Retired)',\n '1.2.840.10008.1.2.4.54': 'JPEG Spectral Selection, Non-Hierarchical (Process 7 & 9) (Retired)',\n '1.2.840.10008.1.2.4.55': 'JPEG Full Progression, Non-Hierarchical (Process 10 & 12) (Retired)',\n '1.2.840.10008.1.2.4.56': 'JPEG Full Progression, Non-Hierarchical (Process 11 & 13) (Retired)',\n '1.2.840.10008.1.2.4.57': 'JPEG Lossless, Non-Hierarchical (Process 14)',\n '1.2.840.10008.1.2.4.58': 'JPEG Lossless, Non-Hierarchical (Process 15) (Retired)',\n '1.2.840.10008.1.2.4.59': 'JPEG Extended, Hierarchical (Process 16 & 18) (Retired)',\n '1.2.840.10008.1.2.4.60': 'JPEG Extended, Hierarchical (Process 17 & 19) (Retired)',\n '1.2.840.10008.1.2.4.61': 'JPEG Spectral Selection, Hierarchical (Process 20 & 22) (Retired)',\n '1.2.840.10008.1.2.4.62': 'JPEG Spectral Selection, Hierarchical (Process 21 & 23) (Retired)',\n '1.2.840.10008.1.2.4.63': 'JPEG Full Progression, Hierarchical (Process 24 & 26) (Retired)',\n '1.2.840.10008.1.2.4.64': 'JPEG Full Progression, Hierarchical (Process 25 & 27) (Retired)',\n '1.2.840.10008.1.2.4.65': 'JPEG Lossless, Hierarchical (Process 28) (Retired)',\n '1.2.840.10008.1.2.4.66': 'JPEG Lossless, Hierarchical (Process 29) (Retired)',\n '1.2.840.10008.1.2.4.70': 'JPEG Lossless, Non-Hierarchical, First-Order Prediction (Process 14 [Selection Value 1])',\n '1.2.840.10008.1.2.4.80': 'JPEG-LS Lossless Image Compression',\n '1.2.840.10008.1.2.4.81': 'JPEG-LS Lossy (Near-Lossless) Image Compression',\n '1.2.840.10008.1.2.4.90': 'JPEG 2000 Image Compression (Lossless Only)',\n '1.2.840.10008.1.2.4.91': 'JPEG 2000 Image Compression',\n '1.2.840.10008.1.2.4.92': 'JPEG 2000 Part 2 Multi-component Image Compression (Lossless Only)',\n '1.2.840.10008.1.2.4.93': 'JPEG 2000 Part 2 Multi-component Image Compression',\n '1.2.840.10008.1.2.4.94': 'JPIP Referenced',\n '1.2.840.10008.1.2.4.95': 'JPIP Referenced Deflate',\n '1.2.840.10008.1.2.4.100': 'MPEG2 Main Profile / Main Level',\n '1.2.840.10008.1.2.4.101': 'MPEG2 Main Profile / High Level',\n '1.2.840.10008.1.2.4.102': 'MPEG-4 AVC/H.264 High Profile / Level 4.1',\n '1.2.840.10008.1.2.4.103': 'MPEG-4 AVC/H.264 BD-compatible High Profile / Level 4.1',\n '1.2.840.10008.1.2.4.104': 'MPEG-4 AVC/H.264 High Profile / Level 4.2 For 2D Video',\n '1.2.840.10008.1.2.4.105': 'MPEG-4 AVC/H.264 High Profile / Level 4.2 For 3D Video',\n '1.2.840.10008.1.2.4.106': 'MPEG-4 AVC/H.264 Stereo High Profile / Level 4.2',\n '1.2.840.10008.1.2.4.107': 'HEVC/H.265 Main Profile / Level 5.1',\n '1.2.840.10008.1.2.4.108': 'HEVC/H.265 Main 10 Profile / Level 5.1',\n '1.2.840.10008.1.2.5': 'RLE Lossless',\n '1.2.840.10008.1.2.6.1': 'RFC 2557 MIME encapsulation (Retired)',\n '1.2.840.10008.1.2.6.2': 'XML Encoding (Retired)',\n '1.2.840.10008.1.2.7.1': 'SMPTE ST 2110-20 Uncompressed Progressive Active Video',\n '1.2.840.10008.1.2.7.2': 'SMPTE ST 2110-20 Uncompressed Interlaced Active Video',\n '1.2.840.10008.1.2.7.3': 'SMPTE ST 2110-30 PCM Digital Audio',\n '1.2.840.10008.1.20': 'Papyrus 3 Implicit VR Little Endian (Retired)'\n};\n\n/**\n * Transfer syntaxes indexed by keyword.\n *\n * @type {Object}\n */\nexport const transferSyntaxKeywords = {\n ImplicitVRLittleEndian: '1.2.840.10008.1.2',\n ExplicitVRLittleEndian: '1.2.840.10008.1.2.1',\n EncapsulatedUncompressedExplicitVRLittleEndian: '1.2.840.10008.1.2.1.98',\n DeflatedExplicitVRLittleEndian: '1.2.840.10008.1.2.1.99',\n ExplicitVRBigEndian: '1.2.840.10008.1.2.2',\n JPEGBaseline8Bit: '1.2.840.10008.1.2.4.50',\n JPEGExtended12Bit: '1.2.840.10008.1.2.4.51',\n JPEGExtended35: '1.2.840.10008.1.2.4.52',\n JPEGSpectralSelectionNonHierarchical68: '1.2.840.10008.1.2.4.53',\n JPEGSpectralSelectionNonHierarchical79: '1.2.840.10008.1.2.4.54',\n JPEGFullProgressionNonHierarchical1012: '1.2.840.10008.1.2.4.55',\n JPEGFullProgressionNonHierarchical1113: '1.2.840.10008.1.2.4.56',\n JPEGLossless: '1.2.840.10008.1.2.4.57',\n JPEGLosslessNonHierarchical15: '1.2.840.10008.1.2.4.58',\n JPEGExtendedHierarchical1618: '1.2.840.10008.1.2.4.59',\n JPEGExtendedHierarchical1719: '1.2.840.10008.1.2.4.60',\n JPEGSpectralSelectionHierarchical2022: '1.2.840.10008.1.2.4.61',\n JPEGSpectralSelectionHierarchical2123: '1.2.840.10008.1.2.4.62',\n JPEGFullProgressionHierarchical2426: '1.2.840.10008.1.2.4.63',\n JPEGFullProgressionHierarchical2527: '1.2.840.10008.1.2.4.64',\n JPEGLosslessHierarchical28: '1.2.840.10008.1.2.4.65',\n JPEGLosslessHierarchical29: '1.2.840.10008.1.2.4.66',\n JPEGLosslessSV1: '1.2.840.10008.1.2.4.70',\n JPEGLSLossless: '1.2.840.10008.1.2.4.80',\n JPEGLSNearLossless: '1.2.840.10008.1.2.4.81',\n JPEG2000Lossless: '1.2.840.10008.1.2.4.90',\n JPEG2000: '1.2.840.10008.1.2.4.91',\n JPEG2000MCLossless: '1.2.840.10008.1.2.4.92',\n JPEG2000MC: '1.2.840.10008.1.2.4.93',\n JPIPReferenced: '1.2.840.10008.1.2.4.94',\n JPIPReferencedDeflate: '1.2.840.10008.1.2.4.95',\n MPEG2MPML: '1.2.840.10008.1.2.4.100',\n MPEG2MPHL: '1.2.840.10008.1.2.4.101',\n MPEG4HP41: '1.2.840.10008.1.2.4.102',\n MPEG4HP41BD: '1.2.840.10008.1.2.4.103',\n MPEG4HP422D: '1.2.840.10008.1.2.4.104',\n MPEG4HP423D: '1.2.840.10008.1.2.4.105',\n MPEG4HP42STEREO: '1.2.840.10008.1.2.4.106',\n HEVCMP51: '1.2.840.10008.1.2.4.107',\n HEVCM10P51: '1.2.840.10008.1.2.4.108',\n RLELossless: '1.2.840.10008.1.2.5',\n RFC2557MIMEEncapsulation: '1.2.840.10008.1.2.6.1',\n XMLEncoding: '1.2.840.10008.1.2.6.2',\n SMPTEST211020UncompressedProgressiveActiveVideo: '1.2.840.10008.1.2.7.1',\n SMPTEST211020UncompressedInterlacedActiveVideo: '1.2.840.10008.1.2.7.2',\n SMPTEST211030PCMDigitalAudio: '1.2.840.10008.1.2.7.3',\n Papyrus3ImplicitVRLittleEndian: '1.2.840.10008.1.20'\n};\n","import {\n dictionary,\n tagGroups\n} from './dictionary';\n\n/**\n * Immutable tag.\n */\nexport class Tag {\n\n /**\n * The tag group.\n *\n * @type {string}\n */\n #group;\n\n /**\n * The tag element.\n *\n * @type {string}\n */\n #element;\n\n /**\n * @param {string} group The tag group as '####'.\n * @param {string} element The tag element as '####'.\n */\n constructor(group, element) {\n if (!group || typeof group === 'undefined') {\n throw new Error('Cannot create tag with no group.');\n }\n if (group.length !== 4) {\n throw new Error('Cannot create tag with badly sized group: ' + group);\n }\n if (!element || typeof element === 'undefined') {\n throw new Error('Cannot create tag with no element.');\n }\n if (element.length !== 4) {\n throw new Error('Cannot create tag with badly sized element: ' + element);\n }\n this.#group = group;\n this.#element = element;\n }\n\n /**\n * Get the tag group.\n *\n * @returns {string} The tag group.\n */\n getGroup() {\n return this.#group;\n }\n\n /**\n * Get the tag element.\n *\n * @returns {string} The tag element.\n */\n getElement() {\n return this.#element;\n }\n\n /**\n * Get as string representation of the tag: 'key: name'.\n *\n * @returns {string} A string representing the tag.\n */\n toString() {\n return this.getKey() + ': ' + this.getNameFromDictionary();\n }\n\n /**\n * Check for Tag equality.\n *\n * @param {Tag} rhs The other tag to compare to.\n * @returns {boolean} True if both tags are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.#group === rhs.getGroup() &&\n this.#element === rhs.getElement();\n }\n\n /**\n * Get the group-element key used to store DICOM elements.\n *\n * @returns {string} The key as '########'.\n */\n getKey() {\n return this.#group + this.#element;\n }\n\n /**\n * Get the group name as defined in TagGroups.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return tagGroups[this.#group];\n }\n\n /**\n * Does this tag have a VR.\n * Basically not the Item, ItemDelimitationItem nor\n * SequenceDelimitationItem tags.\n *\n * @returns {boolean} True if this tag has a VR.\n */\n isWithVR() {\n return !(this.#group === 'FFFE' &&\n (this.#element === 'E000' ||\n this.#element === 'E00D' ||\n this.#element === 'E0DD')\n );\n }\n\n /**\n * Is the tag group a private tag group ?\n *\n * See: {@link http://dicom.nema.org/medical/dicom/2022a/output/html/part05.html#sect_7.8}.\n *\n * @returns {boolean} True if the tag group is private,\n * ie if its group is an odd number.\n */\n isPrivate() {\n return parseInt(this.#group, 16) % 2 === 1;\n }\n\n /**\n * Get the tag info from the dicom dictionary.\n *\n * @returns {string[]|undefined} The info as [vr, multiplicity, name].\n */\n #getInfoFromDictionary() {\n let info;\n if (typeof dictionary[this.#group] !== 'undefined' &&\n typeof dictionary[this.#group][this.#element] !==\n 'undefined') {\n info = dictionary[this.#group][this.#element];\n }\n return info;\n }\n\n /**\n * Get the tag Value Representation (VR) from the dicom dictionary.\n *\n * @returns {string|undefined} The VR.\n */\n getVrFromDictionary() {\n let vr;\n const info = this.#getInfoFromDictionary();\n if (typeof info !== 'undefined') {\n vr = info[0];\n }\n return vr;\n }\n\n /**\n * Get the tag name from the dicom dictionary.\n *\n * @returns {string|undefined} The VR.\n */\n getNameFromDictionary() {\n let name;\n const info = this.#getInfoFromDictionary();\n if (typeof info !== 'undefined') {\n name = info[2];\n }\n return name;\n }\n\n} // Tag class\n\n/**\n * Tag compare function.\n *\n * @param {Tag} a The first tag.\n * @param {Tag} b The second tag.\n * @returns {number} The result of the tag comparison,\n * positive for b before a, negative for a before b and\n * zero to keep same order.\n */\nexport function tagCompareFunction(a, b) {\n // first by group\n let res = parseInt(a.getGroup(), 16) - parseInt(b.getGroup(), 16);\n if (res === 0) {\n // by element if same group\n res = parseInt(a.getElement(), 16) - parseInt(b.getElement(), 16);\n }\n return res;\n}\n\n/**\n * Split a group-element key used to store DICOM elements.\n *\n * @param {string} key The key in form \"00280102\" as generated by tag::getKey.\n * @returns {Tag} The DICOM tag.\n */\nexport function getTagFromKey(key) {\n if (!key || typeof key === 'undefined') {\n throw new Error('Cannot create tag with no key.');\n }\n if (key.length !== 8) {\n throw new Error('Cannot create tag with badly sized key: ' + key);\n }\n return new Tag(key.substring(0, 4), key.substring(4, 8));\n}\n\n/**\n * Get the TransferSyntaxUID Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getTransferSyntaxUIDTag() {\n return new Tag('0002', '0010');\n}\n\n/**\n * Get the FileMetaInformationGroupLength Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getFileMetaInformationGroupLengthTag() {\n return new Tag('0002', '0000');\n}\n\n/**\n * Is the input tag the FileMetaInformationGroupLength Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isFileMetaInformationGroupLengthTag(tag) {\n return tag.equals(getFileMetaInformationGroupLengthTag());\n}\n\n/**\n * Get the Item Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getItemTag() {\n return new Tag('FFFE', 'E000');\n}\n\n/**\n * Is the input tag the Item Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isItemTag(tag) {\n // faster than tag.equals(getItemTag());\n return tag.getKey() === 'FFFEE000';\n}\n\n/**\n * Get the ItemDelimitationItem Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getItemDelimitationItemTag() {\n return new Tag('FFFE', 'E00D');\n}\n\n/**\n * Is the input tag the ItemDelimitationItem Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isItemDelimitationItemTag(tag) {\n // faster than tag.equals(getItemDelimitationItemTag());\n return tag.getKey() === 'FFFEE00D';\n}\n\n/**\n * Get the SequenceDelimitationItem Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getSequenceDelimitationItemTag() {\n return new Tag('FFFE', 'E0DD');\n}\n\n/**\n * Is the input tag the SequenceDelimitationItem Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isSequenceDelimitationItemTag(tag) {\n // faster than tag.equals(getSequenceDelimitationItemTag());\n return tag.getKey() === 'FFFEE0DD';\n}\n\n/**\n * Get the PixelData Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getPixelDataTag() {\n return new Tag('7FE0', '0010');\n}\n\n/**\n * Is the input tag the PixelData Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isPixelDataTag(tag) {\n // faster than tag.equals(getPixelDataTag());\n return tag.getKey() === '7FE00010';\n}\n\n/**\n * Get a tag from the dictionary using a tag string name.\n *\n * @param {string} tagName The tag string name.\n * @returns {Tag|undefined} The tag object or null if not found.\n */\nexport function getTagFromDictionary(tagName) {\n if (typeof tagName === 'undefined' || tagName === null) {\n return null;\n }\n let group = null;\n let element = null;\n const dict = dictionary;\n const keys0 = Object.keys(dict);\n let keys1 = null;\n let foundTag = false;\n // search through dictionary\n for (let k0 = 0, lenK0 = keys0.length; k0 < lenK0; ++k0) {\n group = keys0[k0];\n keys1 = Object.keys(dict[group]);\n for (let k1 = 0, lenK1 = keys1.length; k1 < lenK1; ++k1) {\n element = keys1[k1];\n if (dict[group][element][2] === tagName) {\n foundTag = true;\n break;\n }\n }\n if (foundTag) {\n break;\n }\n }\n let tag;\n if (foundTag) {\n tag = new Tag(group, element);\n }\n return tag;\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Tag} from './dicomTag';\n/* eslint-enable no-unused-vars */\n\n/**\n * DICOM data element.\n */\nexport class DataElement {\n /**\n * The element Value Representation.\n *\n * @type {string}\n */\n vr;\n /**\n * The element value.\n *\n * @type {Array}\n */\n value;\n\n // [start] internal values\n // only present during parsing or writing otherwise not set\n\n /**\n * The element dicom tag.\n *\n * @type {Tag}\n */\n tag;\n\n /**\n * The element Value Length.\n *\n * @type {number}\n */\n vl;\n\n /**\n * Flag to know if defined or undefined sequence length.\n *\n * @type {boolean}\n */\n undefinedLength;\n\n /**\n * The element start offset.\n *\n * @type {number}\n */\n startOffset;\n\n /**\n * The element end offset.\n *\n * @type {number}\n */\n endOffset;\n\n /**\n * The sequence items.\n *\n * @type {Array}\n */\n items;\n\n // [end] internal values\n\n /**\n * @param {string} vr The element VR (Value Representation).\n */\n constructor(vr) {\n this.vr = vr;\n }\n}","/**\n * Is the Native endianness Little Endian.\n *\n * @returns {boolean} True if little endian.\n */\nexport function isNativeLittleEndian() {\n return new Int8Array(new Int16Array([1]).buffer)[0] > 0;\n}\n\n/**\n * Flip an array's endianness.\n * Inspired from [DataStream.js]{@link https://github.com/kig/DataStream.js}.\n *\n * @param {object} array The array to flip (modified).\n */\nfunction flipArrayEndianness(array) {\n const blen = array.byteLength;\n const u8 = new Uint8Array(array.buffer, array.byteOffset, blen);\n const bpe = array.BYTES_PER_ELEMENT;\n let tmp;\n for (let i = 0; i < blen; i += bpe) {\n for (let j = i + bpe - 1, k = i; j > k; j--, k++) {\n tmp = u8[k];\n u8[k] = u8[j];\n u8[j] = tmp;\n }\n }\n}\n\n/**\n * Data reader.\n */\nexport class DataReader {\n\n /**\n * The input buffer.\n *\n * @type {ArrayBuffer}\n */\n #buffer;\n\n /**\n * Is the endianness Little Endian.\n *\n * @type {boolean}\n */\n #isLittleEndian = true;\n\n /**\n * Is the Native endianness Little Endian.\n *\n * @type {boolean}\n */\n #isNativeLittleEndian = isNativeLittleEndian();\n\n /**\n * Flag to know if the TypedArray data needs flipping.\n *\n * @type {boolean}\n */\n #needFlip;\n\n /**\n * The main data view.\n *\n * @type {DataView}\n */\n #view;\n\n /**\n * @param {ArrayBuffer} buffer The input array buffer.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is little\n * or big endian (default: true).\n */\n constructor(buffer, isLittleEndian) {\n this.#buffer = buffer;\n // Set endian flag if not defined.\n if (typeof isLittleEndian !== 'undefined') {\n this.#isLittleEndian = isLittleEndian;\n }\n this.#needFlip = (this.#isLittleEndian !== this.#isNativeLittleEndian);\n this.#view = new DataView(buffer);\n }\n\n /**\n * Read Uint16 (2 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readUint16(byteOffset) {\n return this.#view.getUint16(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Int16 (2 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readInt16(byteOffset) {\n return this.#view.getInt16(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Uint32 (4 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readUint32(byteOffset) {\n return this.#view.getUint32(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read BigUint64 (8 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {bigint} The read data.\n */\n readBigUint64(byteOffset) {\n return this.#view.getBigUint64(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Int32 (4 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readInt32(byteOffset) {\n return this.#view.getInt32(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read BigInt64 (8 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {bigint} The read data.\n */\n readBigInt64(byteOffset) {\n return this.#view.getBigInt64(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Float32 (4 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readFloat32(byteOffset) {\n return this.#view.getFloat32(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Float64 (8 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readFloat64(byteOffset) {\n return this.#view.getFloat64(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read binary (0/1) array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint8Array} The read data.\n */\n readBinaryArray(byteOffset, size) {\n // input\n const bitArray = new Uint8Array(this.#buffer, byteOffset, size);\n // result\n const byteArrayLength = 8 * bitArray.length;\n const data = new Uint8Array(byteArrayLength);\n let bitNumber = 0;\n let bitIndex = 0;\n for (let i = 0; i < byteArrayLength; ++i) {\n bitNumber = i % 8;\n bitIndex = Math.floor(i / 8);\n // see https://stackoverflow.com/questions/4854207/get-a-specific-bit-from-byte/4854257\n // @ts-ignore\n data[i] = 255 * ((bitArray[bitIndex] & (1 << bitNumber)) !== 0);\n }\n return data;\n }\n\n /**\n * Read Uint8 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint8Array} The read data.\n */\n readUint8Array(byteOffset, size) {\n return new Uint8Array(this.#buffer, byteOffset, size);\n }\n\n /**\n * Read Int8 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Int8Array} The read data.\n */\n readInt8Array(byteOffset, size) {\n return new Int8Array(this.#buffer, byteOffset, size);\n }\n\n /**\n * Read Uint16 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint16Array} The read data.\n */\n readUint16Array(byteOffset, size) {\n const bpe = Uint16Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Uint16Array.BYTES_PER_ELEMENT (=2)\n if (byteOffset % bpe === 0) {\n data = new Uint16Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Uint16Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readUint16(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Int16 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Int16Array} The read data.\n */\n readInt16Array(byteOffset, size) {\n const bpe = Int16Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Int16Array.BYTES_PER_ELEMENT (=2)\n if (byteOffset % bpe === 0) {\n data = new Int16Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Int16Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readInt16(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Uint32 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint32Array} The read data.\n */\n readUint32Array(byteOffset, size) {\n const bpe = Uint32Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Uint32Array.BYTES_PER_ELEMENT (=4)\n if (byteOffset % bpe === 0) {\n data = new Uint32Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Uint32Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readUint32(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Uint64 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {BigUint64Array} The read data.\n */\n readUint64Array(byteOffset, size) {\n const bpe = BigUint64Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of BigUint64Array.BYTES_PER_ELEMENT (=8)\n if (byteOffset % bpe === 0) {\n data = new BigUint64Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new BigUint64Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readBigUint64(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Int32 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Int32Array} The read data.\n */\n readInt32Array(byteOffset, size) {\n const bpe = Int32Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Int32Array.BYTES_PER_ELEMENT (=4)\n if (byteOffset % bpe === 0) {\n data = new Int32Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Int32Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readInt32(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Int64 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {BigInt64Array} The read data.\n */\n readInt64Array(byteOffset, size) {\n const bpe = BigInt64Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of BigInt64Array.BYTES_PER_ELEMENT (=8)\n if (byteOffset % bpe === 0) {\n data = new BigInt64Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new BigInt64Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readBigInt64(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Float32 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Float32Array} The read data.\n */\n readFloat32Array(byteOffset, size) {\n const bpe = Float32Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Float32Array.BYTES_PER_ELEMENT (=4)\n if (byteOffset % bpe === 0) {\n data = new Float32Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Float32Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readFloat32(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Float64 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Float64Array} The read data.\n */\n readFloat64Array(byteOffset, size) {\n const bpe = Float64Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Float64Array.BYTES_PER_ELEMENT (=8)\n if (byteOffset % bpe === 0) {\n data = new Float64Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Float64Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readFloat64(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read data as an hexadecimal string of length 4 (no '0x' prefix).\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {string} The read data ('####').\n */\n readHex(byteOffset) {\n // read and convert to hex string\n const str = this.readUint16(byteOffset).toString(16);\n // return padded\n return '0000'.substring(0, 4 - str.length) + str.toUpperCase();\n }\n\n} // class DataReader\n","import {Vector3D} from './vector';\nimport {\n Matrix33,\n getIdentityMat33\n} from './matrix';\n\n/**\n * Create a 3x3 coronal (xzy) matrix.\n *\n * @returns {Matrix33} The coronal matrix.\n */\nexport function getCoronalMat33() {\n /* eslint-disable @stylistic/js/array-element-newline */\n return new Matrix33([\n 1, 0, 0,\n 0, 0, 1,\n 0, -1, 0\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n}\n\n/**\n * Create a 3x3 sagittal (yzx) matrix.\n *\n * @returns {Matrix33} The sagittal matrix.\n */\nexport function getSagittalMat33() {\n /* eslint-disable @stylistic/js/array-element-newline */\n return new Matrix33([\n 0, 0, -1,\n 1, 0, 0,\n 0, -1, 0\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n}\n\n/**\n * Default anatomical plane orientations.\n */\nexport const Orientation = {\n /**\n * Axial, also known as transverse.\n */\n Axial: 'axial',\n /**\n * Coronal, also known as frontal.\n */\n Coronal: 'coronal',\n /**\n * Sagittal, also known as anteroposterior.\n */\n Sagittal: 'sagittal'\n};\n\n/**\n * Get an orientation matrix from a name.\n *\n * @param {string} name The orientation name.\n * @returns {Matrix33|undefined} The orientation matrix.\n */\nexport function getMatrixFromName(name) {\n let matrix;\n if (name === Orientation.Axial) {\n matrix = getIdentityMat33();\n } else if (name === Orientation.Coronal) {\n matrix = getCoronalMat33();\n } else if (name === Orientation.Sagittal) {\n matrix = getSagittalMat33();\n }\n return matrix;\n}\n\n/**\n * Get the orientation code of an orientation matrix. Each letter defines\n * the towards direction. Letters are: R (right), L (left),\n * A (anterior), P (posterior), I (inferior) and S (superior).\n *\n * @param {Matrix33} matrix The orientation matrix.\n * @returns {string} The orientation code.\n */\nexport function getOrientationStringLPS(matrix) {\n const v0 = new Vector3D(\n matrix.get(0, 0),\n matrix.get(1, 0),\n matrix.get(2, 0)\n );\n const v1 = new Vector3D(\n matrix.get(0, 1),\n matrix.get(1, 1),\n matrix.get(2, 1)\n );\n const v2 = new Vector3D(\n matrix.get(0, 2),\n matrix.get(1, 2),\n matrix.get(2, 2)\n );\n return getVectorStringLPS(v0) +\n getVectorStringLPS(v1) +\n getVectorStringLPS(v2);\n}\n\n/**\n * Get the orientation code of an orientation vector.\n * Credits: David Clunie, {@link https://www.dclunie.com/medical-image-faq/html/part2.html}.\n *\n * @param {Vector3D} vector The orientation vector.\n * @returns {string} The orientation code.\n */\nfunction getVectorStringLPS(vector) {\n let abs = new Vector3D(\n Math.abs(vector.getX()),\n Math.abs(vector.getY()),\n Math.abs(vector.getZ())\n );\n\n let orientation = '';\n const orientationX = vector.getX() < 0 ? 'R' : 'L';\n const orientationY = vector.getY() < 0 ? 'A' : 'P';\n // as defined in DICOM\n //const orientationZ = vector.getZ() < 0 ? 'F' : 'H';\n const orientationZ = vector.getZ() < 0 ? 'I' : 'S';\n\n const threshold = 0.0001;\n\n for (let i = 0; i < 3; i++) {\n if (abs.getX() > threshold &&\n abs.getX() > abs.getY() &&\n abs.getX() > abs.getZ()) {\n orientation += orientationX;\n abs = new Vector3D(0, abs.getY(), abs.getZ());\n } else if (abs.getY() > threshold &&\n abs.getY() > abs.getX() &&\n abs.getY() > abs.getZ()) {\n orientation += orientationY;\n abs = new Vector3D(abs.getX(), 0, abs.getZ());\n } else if (abs.getZ() > threshold &&\n abs.getZ() > abs.getX() &&\n abs.getZ() > abs.getY()) {\n orientation += orientationZ;\n abs = new Vector3D(abs.getX(), abs.getY(), 0);\n } else {\n break;\n }\n }\n\n return orientation;\n}\n\n/**\n * Get the LPS 'group' (axial, coronal or sagittal) from a LPS code.\n *\n * @param {string} code The LPS code string.\n * @returns {string|undefined} The group.\n */\nexport function getLPSGroup(code) {\n let orientStr;\n const axialCodes = ['LPS', 'LAI', 'RPI', 'RAS'];\n const coronalCodes = ['LSA', 'LIP', 'RSP', 'RIA'];\n const sagittalCodes = ['PSL', 'PIR', 'ASR', 'AIL'];\n if (axialCodes.includes(code)) {\n orientStr = Orientation.Axial;\n } else if (coronalCodes.includes(code)) {\n orientStr = Orientation.Coronal;\n } else if (sagittalCodes.includes(code)) {\n orientStr = Orientation.Sagittal;\n }\n return orientStr;\n}\n\n/**\n * Get the orientation matrix associated to the direction cosines.\n *\n * @param {number[]} cosines The direction cosines.\n * @returns {Matrix33|undefined} The orientation matrix.\n */\nexport function getOrientationFromCosines(cosines) {\n let orientationMatrix;\n if (typeof cosines !== 'undefined' && cosines.length === 6) {\n const rowCosines = new Vector3D(cosines[0], cosines[1], cosines[2]);\n const colCosines = new Vector3D(cosines[3], cosines[4], cosines[5]);\n const normal = rowCosines.crossProduct(colCosines);\n /* eslint-disable @stylistic/js/array-element-newline */\n orientationMatrix = new Matrix33([\n rowCosines.getX(), colCosines.getX(), normal.getX(),\n rowCosines.getY(), colCosines.getY(), normal.getY(),\n rowCosines.getZ(), colCosines.getZ(), normal.getZ()\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n }\n return orientationMatrix;\n}\n","import {\n Tag,\n getTransferSyntaxUIDTag,\n isSequenceDelimitationItemTag,\n isItemDelimitationItemTag,\n isPixelDataTag\n} from './dicomTag';\nimport {\n is32bitVLVR,\n isCharSetStringVR,\n transferSyntaxes,\n transferSyntaxKeywords,\n vrTypes,\n} from './dictionary';\nimport {DataElement} from './dataElement';\nimport {DataReader} from './dataReader';\nimport {logger} from '../utils/logger';\nimport {\n getOrientationFromCosines,\n getOrientationStringLPS,\n getLPSGroup\n} from '../math/orientation';\n\n/**\n * List of DICOM data elements indexed via a 8 character string formed from\n * the group and element numbers.\n *\n * @typedef {Object} DataElements\n */\n\n/**\n * Get the version of the library.\n *\n * @returns {string} The version of the library.\n */\nexport function getDwvVersion() {\n return '0.34.0-beta.4';\n}\n\n/**\n * Check that an input buffer includes the DICOM prefix 'DICM'\n * after the 128 bytes preamble.\n *\n * Ref: [DICOM File Meta]{@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part10/chapter_7.html#sect_7.1}.\n *\n * @param {ArrayBuffer} buffer The buffer to check.\n * @returns {boolean} True if the buffer includes the prefix.\n */\nexport function hasDicomPrefix(buffer) {\n // check size: typed array constructor will throw RangeError if\n // byteOffset + length * TypedArray.BYTES_PER_ELEMENT > buffer.byteLength\n if (buffer.byteLength < 132) {\n return false;\n }\n const prefixArray = new Uint8Array(buffer, 128, 4);\n const stringReducer = function (previous, current) {\n return previous += String.fromCharCode(current);\n };\n return prefixArray.reduce(stringReducer, '') === 'DICM';\n}\n\n// Zero-width space (u200B)\n// @ts-ignore\nconst ZWS = String.fromCharCode('u200B');\n\n/**\n * Clean string: remove zero-width space ending and trim.\n * Warning: no tests are done on the input, will fail if\n * null or undefined or not string.\n * Exported for tests only.\n *\n * @param {string} inputStr The string to clean.\n * @returns {string} The cleaned string.\n */\nexport function cleanString(inputStr) {\n let res = inputStr;\n // get rid of ending zero-width space\n const lastIndex = inputStr.length - 1;\n if (inputStr[lastIndex] === ZWS) {\n res = inputStr.substring(0, lastIndex);\n }\n // trim spaces\n res = res.trim();\n // return\n return res;\n}\n\n/**\n * Get the utfLabel (used by the TextDecoder) from a character set term.\n *\n * References:\n * - DICOM [Value Encoding]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_6.html},\n * - DICOM [Specific Character Set]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.12.html#sect_C.12.1.1.2},\n * - [TextDecoder#Parameters]{@link https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder/TextDecoder#Parameters}.\n *\n * @param {string} charSetTerm The DICOM character set.\n * @returns {string} The corresponding UTF label.\n */\nfunction getUtfLabel(charSetTerm) {\n let label = 'utf-8';\n if (charSetTerm === 'ISO_IR 100') {\n label = 'iso-8859-1';\n } else if (charSetTerm === 'ISO_IR 101') {\n label = 'iso-8859-2';\n } else if (charSetTerm === 'ISO_IR 109') {\n label = 'iso-8859-3';\n } else if (charSetTerm === 'ISO_IR 110') {\n label = 'iso-8859-4';\n } else if (charSetTerm === 'ISO_IR 144') {\n label = 'iso-8859-5';\n } else if (charSetTerm === 'ISO_IR 127') {\n label = 'iso-8859-6';\n } else if (charSetTerm === 'ISO_IR 126') {\n label = 'iso-8859-7';\n } else if (charSetTerm === 'ISO_IR 138') {\n label = 'iso-8859-8';\n } else if (charSetTerm === 'ISO_IR 148') {\n label = 'iso-8859-9';\n } else if (charSetTerm === 'ISO_IR 13') {\n label = 'shift-jis';\n } else if (charSetTerm === 'ISO_IR 166') {\n label = 'iso-8859-11';\n } else if (charSetTerm === 'ISO 2022 IR 87') {\n label = 'iso-2022-jp';\n } else if (charSetTerm === 'ISO 2022 IR 149') {\n // not supported by TextDecoder when it says it should...\n //label = \"iso-2022-kr\";\n } else if (charSetTerm === 'ISO 2022 IR 58') {\n // not supported by TextDecoder...\n //label = \"iso-2022-cn\";\n } else if (charSetTerm === 'ISO_IR 192') {\n label = 'utf-8';\n } else if (charSetTerm === 'GB18030') {\n label = 'gb18030';\n } else if (charSetTerm === 'GB2312') {\n label = 'gb2312';\n } else if (charSetTerm === 'GBK') {\n label = 'chinese';\n }\n return label;\n}\n\n/**\n * Default text decoder.\n */\nclass DefaultTextDecoder {\n /**\n * Decode an input string buffer.\n *\n * @param {Uint8Array} buffer The buffer to decode.\n * @returns {string} The decoded string.\n */\n decode(buffer) {\n let result = '';\n for (let i = 0, leni = buffer.length; i < leni; ++i) {\n result += String.fromCharCode(buffer[i]);\n }\n return result;\n }\n}\n\n/**\n * Get patient orientation label in the reverse direction.\n *\n * @param {string} ori Patient Orientation value.\n * @returns {string} Reverse Orientation Label.\n */\nexport function getReverseOrientation(ori) {\n if (!ori) {\n return null;\n }\n // reverse labels\n const rlabels = {\n L: 'R',\n R: 'L',\n A: 'P',\n P: 'A',\n H: 'F',\n F: 'H'\n };\n\n let rori = '';\n for (let n = 0; n < ori.length; n++) {\n const o = ori.substring(n, n + 1);\n const r = rlabels[o];\n if (r) {\n rori += r;\n }\n }\n // return\n return rori;\n}\n\n/**\n * Get the name of an image orientation patient.\n *\n * @param {number[]} orientation The image orientation patient.\n * @returns {string|undefined} The orientation\n * name: axial, coronal or sagittal.\n */\nexport function getOrientationName(orientation) {\n let name;\n const orientMatrix = getOrientationFromCosines(orientation);\n if (typeof orientMatrix !== 'undefined') {\n const lpsStr = getOrientationStringLPS(orientMatrix.asOneAndZeros());\n name = getLPSGroup(lpsStr);\n }\n return name;\n}\n\n/**\n * Tell if a given syntax is an implicit one (element with no VR).\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if an implicit syntax.\n */\nexport function isImplicitTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.ImplicitVRLittleEndian;\n}\n\n/**\n * Tell if a given syntax is a big endian syntax.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a big endian syntax.\n */\nexport function isBigEndianTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.ExplicitVRBigEndian;\n}\n\n/**\n * Tell if a given syntax is a JPEG baseline one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a jpeg baseline syntax.\n */\nexport function isJpegBaselineTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.JPEGBaseline8Bit ||\n syntax === transferSyntaxKeywords.JPEGExtended12Bit;\n}\n\n/**\n * Tell if a given syntax is a JPEG Lossless one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a jpeg lossless syntax.\n */\nexport function isJpegLosslessTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.JPEGLossless ||\n syntax === transferSyntaxKeywords.JPEGLosslessSV1;\n}\n\n/**\n * Tell if a given syntax is a JPEG 2000 one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a jpeg 2000 syntax.\n */\nexport function isJpeg2000TransferSyntax(syntax) {\n return syntax.match(/1.2.840.10008.1.2.4.9/) !== null;\n}\n\n/**\n * Tell if a given syntax is a RLE (Run-length encoding) one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a RLE syntax.\n */\nfunction isRleTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.RLELossless;\n}\n\n/**\n * Tell if a given syntax needs decompression.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {string|undefined} The name of the decompression algorithm.\n */\nexport function getSyntaxDecompressionName(syntax) {\n let algo;\n if (isJpeg2000TransferSyntax(syntax)) {\n algo = 'jpeg2000';\n } else if (isJpegBaselineTransferSyntax(syntax)) {\n algo = 'jpeg-baseline';\n } else if (isJpegLosslessTransferSyntax(syntax)) {\n algo = 'jpeg-lossless';\n } else if (isRleTransferSyntax(syntax)) {\n algo = 'rle';\n }\n return algo;\n}\n\n/**\n * Tell if a given syntax is supported for reading.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a supported syntax.\n */\nfunction isReadSupportedTransferSyntax(syntax) {\n return (syntax === transferSyntaxKeywords.ImplicitVRLittleEndian ||\n syntax === transferSyntaxKeywords.ExplicitVRLittleEndian ||\n syntax === transferSyntaxKeywords.ExplicitVRBigEndian ||\n isJpegBaselineTransferSyntax(syntax) ||\n isJpegLosslessTransferSyntax(syntax) ||\n isJpeg2000TransferSyntax(syntax) ||\n isRleTransferSyntax(syntax));\n}\n\n/**\n * Get a transfer syntax name from its UID.\n *\n * @param {string} syntax The transfer syntax UID value.\n * @returns {string} The transfer syntax name.\n */\nexport function getTransferSyntaxName(syntax) {\n let name = 'Unknown';\n if (typeof transferSyntaxes[syntax] !== 'undefined') {\n name = transferSyntaxes[syntax];\n }\n return name;\n}\n\n/**\n * Guess the transfer syntax from the first data element.\n *\n * See {@link https://github.com/ivmartel/dwv/issues/188}\n * (Allow to load DICOM with no DICM preamble) for more details.\n *\n * @param {DataElement} firstDataElement The first data element\n * of the DICOM header.\n * @returns {DataElement} The transfer syntax data element.\n */\nfunction guessTransferSyntax(firstDataElement) {\n const oEightGroupBigEndian = '0800';\n const oEightGroupLittleEndian = '0008';\n // check that group is 0008\n const group = firstDataElement.tag.getGroup();\n if (group !== oEightGroupBigEndian &&\n group !== oEightGroupLittleEndian) {\n throw new Error(\n 'Not a valid DICOM file (no magic DICM word found' +\n ' and first element not in 0008 group)'\n );\n }\n // reasonable assumption: 2 uppercase characters => explicit vr\n const vr = firstDataElement.vr;\n const vr0 = vr.charCodeAt(0);\n const vr1 = vr.charCodeAt(1);\n const implicit = (vr0 >= 65 && vr0 <= 90 && vr1 >= 65 && vr1 <= 90)\n ? false : true;\n // guess transfer syntax\n let syntax = null;\n if (group === oEightGroupLittleEndian) {\n if (implicit) {\n syntax = transferSyntaxKeywords.ImplicitVRLittleEndian;\n } else {\n syntax = transferSyntaxKeywords.ExplicitVRLittleEndian;\n }\n } else {\n if (implicit) {\n // ImplicitVRBigEndian: impossible\n throw new Error(\n 'Not a valid DICOM file (no magic DICM word found' +\n 'and implicit VR big endian detected)'\n );\n } else {\n syntax = transferSyntaxKeywords.ExplicitVRBigEndian;\n }\n }\n // set transfer syntax data element\n const dataElement = new DataElement('UI');\n dataElement.tag = getTransferSyntaxUIDTag();\n dataElement.value = [syntax];\n dataElement.vl = dataElement.value[0].length;\n dataElement.startOffset = firstDataElement.startOffset;\n dataElement.endOffset = dataElement.startOffset + dataElement.vl;\n\n return dataElement;\n}\n\n/**\n * Get the appropriate TypedArray in function of arguments.\n *\n * @param {number} bitsAllocated The number of bites used to store\n * the data: [8, 16, 32].\n * @param {number} pixelRepresentation The pixel representation,\n * 0:unsigned;1:signed.\n * @param {number} size The size of the new array.\n * @returns {Uint8Array|Int8Array|Uint16Array|Int16Array|Uint32Array|Int32Array}\n * The good typed array.\n */\nexport function getTypedArray(bitsAllocated, pixelRepresentation, size) {\n let res = null;\n try {\n if (bitsAllocated === 1 || bitsAllocated === 8) {\n if (pixelRepresentation === 0) {\n res = new Uint8Array(size);\n } else {\n res = new Int8Array(size);\n }\n } else if (bitsAllocated === 16) {\n if (pixelRepresentation === 0) {\n res = new Uint16Array(size);\n } else {\n res = new Int16Array(size);\n }\n } else if (bitsAllocated === 32) {\n if (pixelRepresentation === 0) {\n res = new Uint32Array(size);\n } else {\n res = new Int32Array(size);\n }\n }\n } catch (error) {\n if (error instanceof RangeError) {\n const powerOf2 = Math.floor(Math.log(size) / Math.log(2));\n logger.error('Cannot allocate array of size: ' +\n size + ' (>2^' + powerOf2 + ').');\n }\n }\n return res;\n}\n\n/**\n * Get the number of bytes occupied by a data element prefix,\n * (without its value).\n *\n * WARNING: this is valid for tags with a VR, if not sure use\n * the 'isTagWithVR' function first.\n *\n * Reference:\n * - [Data Element explicit]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_7.html#table_7.1-1},\n * - [Data Element implicit]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_7.5.2.html#table_7.5-1}.\n *\n * ```\n * | Tag | VR | VL | Value |\n * | 4 | 2 | 2 | X | -> regular explicit: 8 + X\n * | 4 | 2+2 | 4 | X | -> 32bit VL: 12 + X\n *\n * | Tag | VL | Value |\n * | 4 | 4 | X | -> implicit (32bit VL): 8 + X\n *\n * | Tag | Len | Value |\n * | 4 | 4 | X | -> item: 8 + X\n * ```\n *\n * @param {string} vr The Value Representation of the element.\n * @param {boolean} isImplicit Does the data use implicit VR?\n * @returns {number} The size of the element prefix.\n */\nexport function getDataElementPrefixByteSize(vr, isImplicit) {\n return isImplicit ? 8 : is32bitVLVR(vr) ? 12 : 8;\n}\n\n/**\n * Is the input VR a known VR.\n *\n * @param {string} vr The vr to test.\n * @returns {boolean} True if known.\n */\nfunction isKnownVR(vr) {\n const extraVrTypes = ['NONE', 'ox', 'xx', 'xs'];\n const knownTypes = Object.keys(vrTypes).concat(extraVrTypes);\n return knownTypes.includes(vr);\n}\n\n/**\n * Small list of used tag keys.\n */\nconst TagKeys = {\n TransferSyntax: '00020010',\n SpecificCharacterSet: '00080005',\n NumberOfFrames: '00280008',\n BitsAllocated: '00280100',\n PixelRepresentation: '00280103',\n PixelData: '7FE00010'\n};\n\n/**\n * DicomParser class.\n *\n * @example\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * // setup the dicom parser\n * const dicomParser = new dwv.DicomParser();\n * // parse the buffer\n * dicomParser.parse(event.target.response);\n * // get the dicom tags\n * const tags = dicomParser.getDicomElements();\n * // display the modality\n * const div = document.getElementById('dwv');\n * div.appendChild(document.createTextNode(\n * 'Modality: ' + tags['00080060'].value[0]\n * ));\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class DicomParser {\n\n /**\n * The list of DICOM elements.\n *\n * @type {DataElements}\n */\n #dataElements = {};\n\n /**\n * Default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Default text decoder.\n *\n * @type {DefaultTextDecoder}\n */\n #defaultTextDecoder = new DefaultTextDecoder();\n\n /**\n * Special text decoder.\n *\n * @type {DefaultTextDecoder|TextDecoder}\n */\n #textDecoder = this.#defaultTextDecoder;\n\n /**\n * Decode an input string buffer using the default text decoder.\n *\n * @param {Uint8Array} buffer The buffer to decode.\n * @returns {string} The decoded string.\n */\n #decodeString(buffer) {\n return this.#defaultTextDecoder.decode(buffer);\n }\n\n /**\n * Decode an input string buffer using the 'special' text decoder.\n *\n * @param {Uint8Array} buffer The buffer to decode.\n * @returns {string} The decoded string.\n */\n #decodeSpecialString(buffer) {\n return this.#textDecoder.decode(buffer);\n }\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The input character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Set the text decoder character set.\n *\n * @param {string} characterSet The input character set.\n */\n setDecoderCharacterSet(characterSet) {\n /**\n * The text decoder.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder}.\n *\n * @external TextDecoder\n */\n this.#textDecoder = new TextDecoder(characterSet);\n }\n\n // not using type DataElements since the typedef is not exported with the API\n\n /**\n * Get the DICOM data elements.\n *\n * @returns {Object} The data elements.\n */\n getDicomElements() {\n return this.#dataElements;\n }\n\n /**\n * Read a DICOM tag.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @returns {object} An object containing the tag and the end offset.\n */\n #readTag(reader, offset) {\n // group\n const group = reader.readHex(offset);\n offset += Uint16Array.BYTES_PER_ELEMENT;\n // element\n const element = reader.readHex(offset);\n offset += Uint16Array.BYTES_PER_ELEMENT;\n // return\n return {\n tag: new Tag(group, element),\n endOffset: offset\n };\n }\n\n /**\n * Read an item data element.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @param {boolean} implicit Is the DICOM VR implicit?\n * @returns {object} The item data as a list of data elements.\n */\n #readItemDataElement(reader, offset, implicit) {\n const itemData = {};\n\n // read the first item\n let item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n\n // exit if it is a sequence delimitation item\n if (isSequenceDelimitationItemTag(item.tag)) {\n return {\n data: itemData,\n endOffset: item.endOffset,\n isSeqDelim: true\n };\n }\n\n // store item (mainly to keep vl)\n itemData[item.tag.getKey()] = {\n tag: item.tag,\n vr: 'NONE',\n vl: item.vl,\n undefinedLength: item.undefinedLength\n };\n\n if (!item.undefinedLength) {\n // explicit VR item: read until the end offset\n const endOffset = offset;\n offset -= item.vl;\n while (offset < endOffset) {\n item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n itemData[item.tag.getKey()] = item;\n }\n } else {\n // implicit VR item: read until the item delimitation item\n let isItemDelim = false;\n while (!isItemDelim) {\n item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n isItemDelim = isItemDelimitationItemTag(item.tag);\n if (!isItemDelim) {\n itemData[item.tag.getKey()] = item;\n }\n }\n }\n\n return {\n data: itemData,\n endOffset: offset,\n isSeqDelim: false\n };\n }\n\n /**\n * Read the pixel item data element.\n * Ref: [Single frame fragments]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_A.4.html#table_A.4-1}.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @param {boolean} implicit Is the DICOM VR implicit?\n * @returns {object} The item data as an array of data elements.\n */\n #readPixelItemDataElement(\n reader, offset, implicit) {\n const itemData = [];\n\n // first item: basic offset table\n let item = this.#readDataElement(reader, offset, implicit);\n const offsetTableVl = item.vl;\n offset = item.endOffset;\n\n // read until the sequence delimitation item\n let isSeqDelim = false;\n while (!isSeqDelim) {\n item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n isSeqDelim = isSequenceDelimitationItemTag(item.tag);\n if (!isSeqDelim) {\n // force pixel item vr to OB\n item.vr = 'OB';\n itemData.push(item);\n }\n }\n\n return {\n data: itemData,\n endOffset: offset,\n offsetTableVl: offsetTableVl\n };\n }\n\n /**\n * Read a DICOM data element.\n *\n * Reference: [DICOM VRs]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_6.2.html#table_6.2-1}.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @param {boolean} implicit Is the DICOM VR implicit?\n * @returns {DataElement} The data element.\n */\n #readDataElement(reader, offset, implicit) {\n // Tag: group, element\n const readTagRes = this.#readTag(reader, offset);\n const tag = readTagRes.tag;\n offset = readTagRes.endOffset;\n\n // Value Representation (VR)\n let vr = null;\n let is32bitVL = false;\n if (tag.isWithVR()) {\n // implicit VR\n if (implicit) {\n vr = tag.getVrFromDictionary();\n if (typeof vr === 'undefined') {\n vr = 'UN';\n }\n is32bitVL = true;\n } else {\n vr = this.#decodeString(reader.readUint8Array(offset, 2));\n offset += 2 * Uint8Array.BYTES_PER_ELEMENT;\n is32bitVL = is32bitVLVR(vr);\n // reserved 2 bytes\n if (is32bitVL) {\n offset += 2 * Uint8Array.BYTES_PER_ELEMENT;\n }\n }\n } else {\n vr = 'NONE';\n is32bitVL = true;\n }\n\n // check vr\n if (!isKnownVR(vr)) {\n logger.warn('Unknown VR: ' + vr +\n ' (for tag ' + tag.getKey() + '), treating as \\'UN\\'');\n vr = 'UN';\n }\n\n // Value Length (VL)\n let vl = 0;\n if (is32bitVL) {\n vl = reader.readUint32(offset);\n offset += Uint32Array.BYTES_PER_ELEMENT;\n } else {\n vl = reader.readUint16(offset);\n offset += Uint16Array.BYTES_PER_ELEMENT;\n }\n\n // check the value of VL\n let undefinedLength = false;\n if (vl === 0xffffffff) {\n undefinedLength = true;\n vl = 0;\n }\n\n // treat private tag with unknown VR and zero VL as a sequence (see #799)\n if (tag.isPrivate() && vr === 'UN' && vl === 0) {\n vr = 'SQ';\n }\n\n let startOffset = offset;\n let endOffset = startOffset + vl;\n\n // read sequence elements\n let data;\n if (isPixelDataTag(tag) && undefinedLength) {\n // pixel data sequence (implicit)\n const pixItemData =\n this.#readPixelItemDataElement(reader, offset, implicit);\n offset = pixItemData.endOffset;\n startOffset += pixItemData.offsetTableVl;\n data = pixItemData.data;\n endOffset = offset;\n vl = offset - startOffset;\n } else if (vr === 'SQ') {\n // sequence\n data = [];\n let itemData;\n if (!undefinedLength) {\n if (vl !== 0) {\n // explicit VR sequence: read until the end offset\n const sqEndOffset = offset + vl;\n while (offset < sqEndOffset) {\n itemData = this.#readItemDataElement(reader, offset, implicit);\n data.push(itemData.data);\n offset = itemData.endOffset;\n }\n endOffset = offset;\n vl = offset - startOffset;\n }\n } else {\n // implicit VR sequence: read until the sequence delimitation item\n let isSeqDelim = false;\n while (!isSeqDelim) {\n itemData = this.#readItemDataElement(reader, offset, implicit);\n isSeqDelim = itemData.isSeqDelim;\n offset = itemData.endOffset;\n // do not store the delimitation item\n if (!isSeqDelim) {\n data.push(itemData.data);\n }\n }\n endOffset = offset;\n vl = offset - startOffset;\n }\n }\n\n // return\n const element = new DataElement(vr);\n element.tag = tag;\n element.vl = vl;\n element.startOffset = startOffset;\n element.endOffset = endOffset;\n // only set if true (only for sequences and items)\n if (undefinedLength) {\n element.undefinedLength = undefinedLength;\n }\n if (data) {\n element.items = data;\n }\n return element;\n }\n\n /**\n * Interpret the data of an element.\n *\n * @param {DataElement} element The data element.\n * @param {DataReader} reader The raw data reader.\n * @param {number} [pixelRepresentation] PixelRepresentation 0->unsigned,\n * 1->signed (needed for pixel data or VR=xs).\n * @param {number} [bitsAllocated] Bits allocated (needed for pixel data).\n * @returns {object} The interpreted data.\n */\n #interpretElement(\n element, reader, pixelRepresentation, bitsAllocated) {\n\n const tag = element.tag;\n const vl = element.vl;\n const vr = element.vr;\n const offset = element.startOffset;\n\n // data\n let data = null;\n const vrType = vrTypes[vr];\n if (isPixelDataTag(tag)) {\n if (element.undefinedLength) {\n // implicit pixel data sequence\n data = [];\n for (let j = 0; j < element.items.length; ++j) {\n data.push(this.#interpretElement(\n element.items[j], reader,\n pixelRepresentation, bitsAllocated));\n }\n // remove non parsed items\n delete element.items;\n } else {\n // check bits allocated and VR\n // https://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_A.2.html\n if (bitsAllocated > 8 && vr === 'OB') {\n logger.warn(\n 'Reading DICOM pixel data with bitsAllocated>8 and OB VR' +\n ', treating as OW'\n );\n element.vr = 'OW';\n }\n // read\n data = [];\n if (bitsAllocated === 1) {\n data.push(reader.readBinaryArray(offset, vl));\n } else if (bitsAllocated === 8) {\n if (pixelRepresentation === 0) {\n data.push(reader.readUint8Array(offset, vl));\n } else {\n data.push(reader.readInt8Array(offset, vl));\n }\n } else if (bitsAllocated === 16) {\n if (pixelRepresentation === 0) {\n data.push(reader.readUint16Array(offset, vl));\n } else {\n data.push(reader.readInt16Array(offset, vl));\n }\n } else {\n throw new Error('Unsupported bits allocated: ' + bitsAllocated);\n }\n }\n } else if (typeof vrType !== 'undefined') {\n if (vrType === 'Uint8') {\n data = reader.readUint8Array(offset, vl);\n } else if (vrType === 'Uint16') {\n data = reader.readUint16Array(offset, vl);\n // keep as binary for 'O*' VR\n if (vr[0] !== 'O') {\n data = Array.from(data);\n }\n } else if (vrType === 'Uint32') {\n data = reader.readUint32Array(offset, vl);\n // keep as binary for 'O*' VR\n if (vr[0] !== 'O') {\n data = Array.from(data);\n }\n } else if (vrType === 'Uint64') {\n data = reader.readUint64Array(offset, vl);\n } else if (vrType === 'Int16') {\n data = Array.from(reader.readInt16Array(offset, vl));\n } else if (vrType === 'Int32') {\n data = Array.from(reader.readInt32Array(offset, vl));\n } else if (vrType === 'Int64') {\n data = reader.readInt64Array(offset, vl);\n } else if (vrType === 'Float32') {\n data = Array.from(reader.readFloat32Array(offset, vl));\n } else if (vrType === 'Float64') {\n data = Array.from(reader.readFloat64Array(offset, vl));\n } else if (vrType === 'string') {\n const stream = reader.readUint8Array(offset, vl);\n if (isCharSetStringVR(vr)) {\n data = this.#decodeSpecialString(stream);\n } else {\n data = this.#decodeString(stream);\n }\n data = cleanString(data).split('\\\\');\n } else {\n throw new Error('Unknown VR type: ' + vrType);\n }\n } else if (vr === 'xx') {\n // US or OW\n data = Array.from(reader.readUint16Array(offset, vl));\n } else if (vr === 'ox') {\n // OB or OW\n if (bitsAllocated === 8) {\n if (pixelRepresentation === 0) {\n data = Array.from(reader.readUint8Array(offset, vl));\n } else {\n data = Array.from(reader.readInt8Array(offset, vl));\n }\n } else {\n if (pixelRepresentation === 0) {\n data = Array.from(reader.readUint16Array(offset, vl));\n } else {\n data = Array.from(reader.readInt16Array(offset, vl));\n }\n }\n } else if (vr === 'xs') {\n // (US or SS) or (US or SS or OW)\n if (pixelRepresentation === 0) {\n data = Array.from(reader.readUint16Array(offset, vl));\n } else {\n data = Array.from(reader.readInt16Array(offset, vl));\n }\n } else if (vr === 'AT') {\n // attribute\n const raw = reader.readUint16Array(offset, vl);\n data = [];\n for (let i = 0, leni = raw.length; i < leni; i += 2) {\n const stri = raw[i].toString(16);\n const stri1 = raw[i + 1].toString(16);\n let str = '(';\n str += '0000'.substring(0, 4 - stri.length) + stri.toUpperCase();\n str += ',';\n str += '0000'.substring(0, 4 - stri1.length) + stri1.toUpperCase();\n str += ')';\n data.push(str);\n }\n } else if (vr === 'SQ') {\n // sequence\n data = [];\n for (let k = 0; k < element.items.length; ++k) {\n const item = element.items[k];\n const itemData = {};\n const keys = Object.keys(item);\n let sqBitsAllocated = bitsAllocated;\n let sqPixelRepresentation = pixelRepresentation;\n for (let l = 0; l < keys.length; ++l) {\n // check if local bitsAllocated\n // (inside item loop to get interpreted value)\n let dataElement = item[TagKeys.BitsAllocated];\n if (typeof dataElement !== 'undefined' &&\n typeof dataElement.value !== 'undefined') {\n sqBitsAllocated = dataElement.value[0];\n }\n // check if local pixelRepresentation\n // (inside item loop to get interpreted value)\n dataElement = item[TagKeys.PixelRepresentation];\n if (typeof dataElement !== 'undefined' &&\n typeof dataElement.value !== 'undefined') {\n sqPixelRepresentation = dataElement.value[0];\n }\n const subElement = item[keys[l]];\n subElement.value = this.#interpretElement(\n subElement, reader,\n sqPixelRepresentation, sqBitsAllocated);\n delete subElement.tag;\n delete subElement.vl;\n delete subElement.startOffset;\n delete subElement.endOffset;\n itemData[keys[l]] = subElement;\n }\n data.push(itemData);\n }\n // remove non parsed elements\n delete element.items;\n } else if (vr === 'NONE') {\n // no VR -> no data\n data = [];\n } else {\n logger.warn('Unknown VR: ' + vr +\n ' (for tag ' + element.tag.getKey() + ')');\n // empty data...\n data = [];\n }\n\n return data;\n }\n\n /**\n * Interpret the data of a list of elements.\n *\n * @param {DataElements} elements A list of data elements.\n * @param {DataReader} reader The raw data reader.\n * @param {number} pixelRepresentation PixelRepresentation 0->unsigned,\n * 1->signed.\n * @param {number} bitsAllocated Bits allocated.\n */\n #interpret(\n elements, reader,\n pixelRepresentation, bitsAllocated) {\n\n const keys = Object.keys(elements);\n for (let i = 0; i < keys.length; ++i) {\n const element = elements[keys[i]];\n if (typeof element.value === 'undefined') {\n element.value = this.#interpretElement(\n element, reader, pixelRepresentation, bitsAllocated);\n }\n // delete interpretation specific properties\n delete element.tag;\n delete element.vl;\n delete element.startOffset;\n delete element.endOffset;\n }\n }\n\n /**\n * Parse the complete DICOM file (given as input to the class).\n * Fills in the member object 'dataElements'.\n *\n * @param {ArrayBuffer} buffer The input array buffer.\n */\n parse(buffer) {\n let offset = 0;\n let syntax = '';\n let dataElement = null;\n // default readers\n const metaReader = new DataReader(buffer);\n let dataReader = new DataReader(buffer);\n\n // 128 -> 132: magic word\n offset = 128;\n const magicword = this.#decodeString(metaReader.readUint8Array(offset, 4));\n offset += 4 * Uint8Array.BYTES_PER_ELEMENT;\n if (magicword === 'DICM') {\n // 0002, 0000: FileMetaInformationGroupLength (vr='UL')\n dataElement = this.#readDataElement(metaReader, offset, false);\n dataElement.value = this.#interpretElement(dataElement, metaReader);\n // increment offset\n offset = dataElement.endOffset;\n // store the data element\n this.#dataElements[dataElement.tag.getKey()] = dataElement;\n // get meta length\n const metaLength = dataElement.value[0];\n\n // meta elements\n const metaEnd = offset + metaLength;\n while (offset < metaEnd) {\n // get the data element\n dataElement = this.#readDataElement(metaReader, offset, false);\n offset = dataElement.endOffset;\n // store the data element\n this.#dataElements[dataElement.tag.getKey()] = dataElement;\n }\n\n // check the TransferSyntaxUID (has to be there!)\n dataElement = this.#dataElements[TagKeys.TransferSyntax];\n if (typeof dataElement === 'undefined') {\n throw new Error('Not a valid DICOM file (no TransferSyntaxUID found)');\n }\n dataElement.value = this.#interpretElement(dataElement, metaReader);\n syntax = dataElement.value[0];\n\n } else {\n logger.warn('No DICM prefix, trying to guess tansfer syntax.');\n // read first element\n dataElement = this.#readDataElement(dataReader, 0, false);\n // guess transfer syntax\n const tsElement = guessTransferSyntax(dataElement);\n // store\n this.#dataElements[tsElement.tag.getKey()] = tsElement;\n syntax = tsElement.value[0];\n // reset offset\n offset = 0;\n }\n\n // check transfer syntax support\n if (!isReadSupportedTransferSyntax(syntax)) {\n throw new Error('Unsupported DICOM transfer syntax: \\'' + syntax +\n '\\' (' + getTransferSyntaxName(syntax) + ')');\n }\n\n // set implicit flag\n let implicit = false;\n if (isImplicitTransferSyntax(syntax)) {\n implicit = true;\n }\n\n // Big Endian\n if (isBigEndianTransferSyntax(syntax)) {\n dataReader = new DataReader(buffer, false);\n }\n\n // DICOM data elements\n while (offset < buffer.byteLength) {\n // get the data element\n dataElement = this.#readDataElement(dataReader, offset, implicit);\n // increment offset\n offset = dataElement.endOffset;\n // store the data element\n const key = dataElement.tag.getKey();\n if (typeof this.#dataElements[key] === 'undefined') {\n this.#dataElements[key] = dataElement;\n } else {\n logger.warn('Not saving duplicate tag: ' + key);\n }\n }\n\n // safety checks...\n if (isNaN(offset)) {\n throw new Error('Problem while parsing, bad offset');\n }\n if (buffer.byteLength !== offset) {\n logger.warn('Did not reach the end of the buffer: ' +\n offset + ' != ' + buffer.byteLength);\n }\n\n //-------------------------------------------------\n // values needed for data interpretation\n\n // pixel specific\n let pixelRepresentation = 0;\n let bitsAllocated = 16;\n if (typeof this.#dataElements[TagKeys.PixelData] !== 'undefined') {\n // PixelRepresentation 0->unsigned, 1->signed\n dataElement = this.#dataElements[TagKeys.PixelRepresentation];\n if (typeof dataElement !== 'undefined') {\n dataElement.value = this.#interpretElement(dataElement, dataReader);\n pixelRepresentation = dataElement.value[0];\n } else {\n logger.warn(\n 'Reading DICOM pixel data with default pixelRepresentation.');\n }\n\n // BitsAllocated\n dataElement = this.#dataElements[TagKeys.BitsAllocated];\n if (typeof dataElement !== 'undefined') {\n dataElement.value = this.#interpretElement(dataElement, dataReader);\n bitsAllocated = dataElement.value[0];\n } else {\n logger.warn('Reading DICOM pixel data with default bitsAllocated.');\n }\n }\n\n // default character set\n if (typeof this.#defaultCharacterSet !== 'undefined') {\n this.setDecoderCharacterSet(this.#defaultCharacterSet);\n }\n\n // SpecificCharacterSet\n dataElement = this.#dataElements[TagKeys.SpecificCharacterSet];\n if (typeof dataElement !== 'undefined') {\n dataElement.value = this.#interpretElement(dataElement, dataReader);\n let charSetTerm;\n if (dataElement.value.length === 1) {\n charSetTerm = dataElement.value[0];\n } else {\n charSetTerm = dataElement.value[1];\n logger.warn('Unsupported character set with code extensions: \\'' +\n charSetTerm + '\\'.');\n }\n this.setDecoderCharacterSet(getUtfLabel(charSetTerm));\n }\n\n // interpret the dicom elements\n this.#interpret(\n this.#dataElements, dataReader,\n pixelRepresentation, bitsAllocated\n );\n\n // handle fragmented pixel buffer\n // Reference: http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_8.2.html\n // (third note, \"Depending on the transfer syntax...\")\n dataElement = this.#dataElements[TagKeys.PixelData];\n if (typeof dataElement !== 'undefined') {\n if (dataElement.undefinedLength) {\n let numberOfFrames = 1;\n if (typeof this.#dataElements[TagKeys.NumberOfFrames] !== 'undefined') {\n numberOfFrames = Number(\n this.#dataElements[TagKeys.NumberOfFrames].value[0]\n );\n }\n const pixItems = dataElement.value;\n if (pixItems.length > 1 && pixItems.length > numberOfFrames) {\n // concatenate pixel data items\n // concat does not work on typed arrays\n //this.pixelBuffer = this.pixelBuffer.concat( dataElement.data );\n // manual concat...\n const nItemPerFrame = pixItems.length / numberOfFrames;\n const newPixItems = [];\n let index = 0;\n for (let f = 0; f < numberOfFrames; ++f) {\n index = f * nItemPerFrame;\n // calculate the size of a frame\n let size = 0;\n for (let i = 0; i < nItemPerFrame; ++i) {\n size += pixItems[index + i].length;\n }\n // create new buffer\n const newBuffer = new pixItems[0].constructor(size);\n // fill new buffer\n let fragOffset = 0;\n for (let j = 0; j < nItemPerFrame; ++j) {\n newBuffer.set(pixItems[index + j], fragOffset);\n fragOffset += pixItems[index + j].length;\n }\n newPixItems[f] = newBuffer;\n }\n // store as pixel data\n dataElement.value = newPixItems;\n }\n }\n }\n }\n\n} // class DicomParser\n","import {logger} from './logger';\n\n/**\n * ListenerHandler class: handles add/removing and firing listeners.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/EventTarget#example}.\n */\nexport class ListenerHandler {\n /**\n * Listeners.\n *\n * @type {object}\n */\n #listeners = {};\n\n /**\n * Add an event listener.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type, will be called with the fired event.\n */\n add(type, callback) {\n // create array if not present\n if (typeof this.#listeners[type] === 'undefined') {\n this.#listeners[type] = [];\n }\n // add callback to listeners array\n this.#listeners[type].push(callback);\n }\n\n /**\n * Remove an event listener.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type.\n */\n remove(type, callback) {\n // check if the type is present\n if (typeof this.#listeners[type] === 'undefined') {\n return;\n }\n // remove from listeners array\n let nFound = 0;\n for (let i = 0; i < this.#listeners[type].length; ++i) {\n if (this.#listeners[type][i] === callback) {\n ++nFound;\n this.#listeners[type].splice(i, 1);\n }\n }\n if (nFound === 0) {\n logger.debug('No callback found on remove listener for type ' + type);\n }\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n fireEvent = (event) => {\n // check if they are listeners for the event type\n if (typeof this.#listeners[event.type] === 'undefined') {\n return;\n }\n // fire events from a copy of the listeners array\n // to avoid interference from possible add/remove\n const stack = this.#listeners[event.type].slice();\n for (let i = 0; i < stack.length; ++i) {\n stack[i](event);\n }\n };\n}\n","import {Index} from '../math/index';\nimport {Point2D} from '../math/point';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {Point} from '../math/point';\nimport {Matrix33} from '../math/matrix';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get an simple iterator for a given range for a one component data.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * @param {number} [increment] The increment between indicies (default=1).\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function simpleRange(dataAccessor, start, end, increment) {\n if (typeof increment === 'undefined') {\n increment = 1;\n }\n let nextIndex = start;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n nextIndex += increment;\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range for a one component data.\n *\n * Using 'maxIter' and not an 'end' index since it fails in some edge cases\n * (for ex coronal2, ie zxy).\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start Zero-based index at which to start the iteration.\n * @param {number} maxIter The maximum number of iterations.\n * @param {number} increment Increment between indicies.\n * @param {number} blockMaxIter Number of applied increment after which\n * blockIncrement is applied.\n * @param {number} blockIncrement Increment after blockMaxIter is reached,\n * the value is from block start to the next block start.\n * @param {boolean} reverse1 If true, loop from end to start.\n * WARN: don't forget to set the value of start as the last index!\n * @param {boolean} reverse2 If true, loop from block end to block start.\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function range(dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2) {\n if (typeof reverse1 === 'undefined') {\n reverse1 = false;\n }\n if (typeof reverse2 === 'undefined') {\n reverse2 = false;\n }\n\n // first index of the iteration\n let nextIndex = start;\n // adapt first index and increments to reverse values\n if (reverse1) {\n blockIncrement *= -1;\n if (reverse2) {\n // start at end of line\n nextIndex -= (blockMaxIter - 1) * increment;\n } else {\n increment *= -1;\n }\n } else {\n if (reverse2) {\n // start at end of line\n nextIndex += (blockMaxIter - 1) * increment;\n increment *= -1;\n }\n }\n const finalBlockIncrement = blockIncrement - blockMaxIter * increment;\n\n // counters\n let mainCount = 0;\n let blockCount = 0;\n // result\n return {\n next: function () {\n if (mainCount < maxIter) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n nextIndex += increment;\n ++mainCount;\n ++blockCount;\n if (blockCount === blockMaxIter) {\n blockCount = 0;\n nextIndex += finalBlockIncrement;\n }\n return result;\n }\n return {\n done: true,\n index: nextIndex\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range with bounds (for a one component data).\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * @param {number} increment The increment between indicies.\n * @param {number} regionSize The size of the region to iterate through.\n * @param {number} regionOffset The offset between regions.\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function rangeRegion(\n dataAccessor, start, end, increment, regionSize, regionOffset) {\n let nextIndex = start;\n let regionElementCount = 0;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n regionElementCount += 1;\n nextIndex += increment;\n if (regionElementCount === regionSize) {\n regionElementCount = 0;\n nextIndex += regionOffset;\n }\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range with bounds (for a one component data).\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * @param {number} increment The increment between indicies.\n * @param {number[][]} regions An array of regions: [off0, size, off1].\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function rangeRegions(\n dataAccessor, start, end, increment, regions) {\n let nextIndex = start;\n let regionCount = 0;\n let regionElementCount = 0;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n regionElementCount += 1;\n nextIndex += increment;\n if (regionElementCount === regions[regionCount][1]) {\n regionElementCount = 0;\n // off1 of current group\n nextIndex += regions[regionCount][2];\n regionCount += 1;\n // off0 of next group\n if (regionCount < regions.length) {\n nextIndex += regions[regionCount][0];\n }\n }\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range for a 3 components data.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * (end - start) needs to be a multiple of 3...\n * @param {number} increment The increment between indicies (default=1).\n * @param {boolean} isPlanar A flag to know if the data is planar\n * (RRRR...GGGG...BBBB...) or not (RGBRGBRGBRGB...), defaults to false.\n * @returns {object} A 3 components iterator folowing the iterator and iterable\n * protocol, the value is an array of size 3 with each component.\n */\nexport function simpleRange3d(\n dataAccessor, start, end, increment, isPlanar) {\n if (typeof increment === 'undefined') {\n increment = 1;\n }\n if (typeof isPlanar === 'undefined') {\n isPlanar = false;\n }\n let nextIndex = start;\n let componentIncrement = 1;\n if (isPlanar) {\n componentIncrement = (end - start) / 3;\n } else {\n increment *= 3;\n }\n let nextIndex1 = nextIndex + componentIncrement;\n let nextIndex2 = nextIndex + 2 * componentIncrement;\n\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: [\n dataAccessor(nextIndex),\n dataAccessor(nextIndex1),\n dataAccessor(nextIndex2)\n ],\n done: false,\n index: [nextIndex, nextIndex1, nextIndex2]\n };\n nextIndex += increment;\n nextIndex1 += increment;\n nextIndex2 += increment;\n return result;\n }\n return {\n done: true,\n index: [end]\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range for a 3 components data.\n *\n * Using 'maxIter' and not an 'end' index since it fails in some edge cases\n * (for ex coronal2, ie zxy).\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start Zero-based index at which to start the iteration.\n * @param {number} maxIter The maximum number of iterations.\n * @param {number} increment Increment between indicies.\n * @param {number} blockMaxIter Number of applied increment after which\n * blockIncrement is applied.\n * @param {number} blockIncrement Increment after blockMaxIter is reached,\n * the value is from block start to the next block start.\n * @param {boolean} reverse1 If true, loop from end to start.\n * WARN: don't forget to set the value of start as the last index!\n * @param {boolean} reverse2 If true, loop from block end to block start.\n * @param {boolean} isPlanar A flag to know if the data is planar\n * (RRRR...GGGG...BBBB...) or not (RGBRGBRGBRGB...), defaults to false.\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function range3d(dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2, isPlanar) {\n const iters = [];\n if (isPlanar) {\n iters.push(range(\n dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + maxIter * increment, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + 2 * maxIter * increment, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n } else {\n increment *= 3;\n blockIncrement *= 3;\n iters.push(range(\n dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + 1, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + 2, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n }\n\n // result\n return {\n next: function () {\n const r0 = iters[0].next();\n const r1 = iters[1].next();\n const r2 = iters[2].next();\n if (!r0.done) {\n return {\n value: [\n r0.value,\n r1.value,\n r2.value\n ],\n done: false,\n index: [\n r0.index,\n r1.index,\n r2.index\n ]\n };\n }\n return {\n done: true,\n index: r2.index\n };\n }\n };\n}\n\n/**\n * Get a list of values for a given iterator.\n *\n * @param {object} iterator The iterator to use to loop through data.\n * @returns {Array} The list of values.\n */\nexport function getIteratorValues(iterator) {\n const values = [];\n let ival = iterator.next();\n while (!ival.done) {\n values.push(ival.value);\n ival = iterator.next();\n }\n return values;\n}\n\n/**\n * Get a slice index iterator.\n *\n * @param {Image} image The image to parse.\n * @param {Index} position The current position.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {Matrix33} viewOrientation The view orientation.\n * @returns {object} The slice iterator.\n */\nexport function getSliceIterator(\n image, position, isRescaled, viewOrientation) {\n const size = image.getGeometry().getSize();\n // zero-ify non direction index\n let dirMax2Index = 2;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n dirMax2Index = viewOrientation.getColAbsMax(2).index;\n }\n const posValues = position.getValues();\n // keep the main direction and any other than 3D\n const indexFilter = function (element, index) {\n return (index === dirMax2Index || index > 2) ? element : 0;\n };\n const posStart = new Index(posValues.map(indexFilter));\n let start = size.indexToOffset(posStart);\n\n // default to non rescaled data\n if (typeof isRescaled === 'undefined') {\n isRescaled = false;\n }\n let dataAccessor = null;\n if (isRescaled) {\n dataAccessor = function (offset) {\n return image.getRescaledValueAtOffset(offset);\n };\n } else {\n dataAccessor = function (offset) {\n return image.getValueAtOffset(offset);\n };\n }\n\n const ncols = size.get(0);\n const nrows = size.get(1);\n const nslices = size.get(2);\n let sliceSize = size.getDimSize(2);\n\n const ncomp = image.getNumberOfComponents();\n const isPlanar = image.getPlanarConfiguration() === 1;\n const getRange = function (\n dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2) {\n if (ncomp === 1) {\n return range(dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2);\n } else if (ncomp === 3) {\n return range3d(dataAccessor, 3 * start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2, isPlanar);\n }\n };\n\n let rangeObj = null;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n const dirMax0 = viewOrientation.getColAbsMax(0);\n const dirMax2 = viewOrientation.getColAbsMax(2);\n\n // default reverse\n const reverse1 = false;\n const reverse2 = false;\n\n let maxIter = null;\n if (dirMax2.index === 2) {\n // axial\n maxIter = ncols * nrows;\n if (dirMax0.index === 0) {\n // xyz\n rangeObj = getRange(dataAccessor,\n start, maxIter, 1, ncols, ncols, reverse1, reverse2);\n } else {\n // yxz\n rangeObj = getRange(dataAccessor,\n start, maxIter, ncols, nrows, 1, reverse1, reverse2);\n }\n } else if (dirMax2.index === 0) {\n // sagittal\n maxIter = nslices * nrows;\n if (dirMax0.index === 1) {\n // yzx\n rangeObj = getRange(dataAccessor,\n start, maxIter, ncols, nrows, sliceSize, reverse1, reverse2);\n } else {\n // zyx\n rangeObj = getRange(dataAccessor,\n start, maxIter, sliceSize, nslices, ncols, reverse1, reverse2);\n }\n } else if (dirMax2.index === 1) {\n // coronal\n maxIter = nslices * ncols;\n if (dirMax0.index === 0) {\n // xzy\n rangeObj = getRange(dataAccessor,\n start, maxIter, 1, ncols, sliceSize, reverse1, reverse2);\n } else {\n // zxy\n rangeObj = getRange(dataAccessor,\n start, maxIter, sliceSize, nslices, 1, reverse1, reverse2);\n }\n } else {\n throw new Error('Unknown direction: ' + dirMax2.index);\n }\n } else {\n if (image.getNumberOfComponents() === 1) {\n rangeObj = simpleRange(dataAccessor, start, start + sliceSize);\n } else if (image.getNumberOfComponents() === 3) {\n // 3 times bigger...\n start *= 3;\n sliceSize *= 3;\n rangeObj = simpleRange3d(\n dataAccessor, start, start + sliceSize, 1, isPlanar);\n } else {\n throw new Error('Unsupported number of components: ' +\n image.getNumberOfComponents());\n }\n }\n\n return rangeObj;\n}\n\n/**\n * Get a slice index iterator for a rectangular region.\n *\n * @param {Image} image The image to parse.\n * @param {Index} index The current position.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {Point2D} min The minimum position (optional).\n * @param {Point2D} max The maximum position (optional).\n * @returns {object} The slice iterator.\n */\nexport function getRegionSliceIterator(\n image, index, isRescaled, min, max) {\n if (image.getNumberOfComponents() !== 1) {\n throw new Error('Unsupported number of components for region iterator: ' +\n image.getNumberOfComponents());\n }\n\n // default to non rescaled data\n if (typeof isRescaled === 'undefined') {\n isRescaled = false;\n }\n let dataAccessor = null;\n if (isRescaled) {\n dataAccessor = function (offset) {\n return image.getRescaledValueAtOffset(offset);\n };\n } else {\n dataAccessor = function (offset) {\n return image.getValueAtOffset(offset);\n };\n }\n\n const size = image.getGeometry().getSize();\n if (typeof min === 'undefined') {\n min = new Point2D(0, 0);\n }\n if (typeof max === 'undefined') {\n max = new Point2D(\n size.get(0) - 1,\n size.get(1)\n );\n }\n // position to pixel for max: extra X is ok, remove extra Y\n const startOffset = size.indexToOffset(index.getWithNew2D(\n min.getX(), min.getY()\n ));\n const endOffset = size.indexToOffset(index.getWithNew2D(\n max.getX(), max.getY() - 1\n ));\n\n // minimum 1 column\n const rangeNumberOfColumns = Math.max(1, max.getX() - min.getX());\n const rowIncrement = size.get(0) - rangeNumberOfColumns;\n\n return rangeRegion(\n dataAccessor, startOffset, endOffset + 1,\n 1, rangeNumberOfColumns, rowIncrement);\n}\n\n/**\n * Get a slice index iterator for a rectangular region.\n *\n * @param {Image} image The image to parse.\n * @param {Index} index The current position.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {number[][][]} regions An array of [x, y] pairs (min, max).\n * @returns {object|undefined} The slice iterator.\n */\nexport function getVariableRegionSliceIterator(\n image, index, isRescaled, regions) {\n if (image.getNumberOfComponents() !== 1) {\n throw new Error('Unsupported number of components for region iterator: ' +\n image.getNumberOfComponents());\n }\n\n // default to non rescaled data\n if (typeof isRescaled === 'undefined') {\n isRescaled = false;\n }\n let dataAccessor = null;\n if (isRescaled) {\n dataAccessor = function (offset) {\n return image.getRescaledValueAtOffset(offset);\n };\n } else {\n dataAccessor = function (offset) {\n return image.getValueAtOffset(offset);\n };\n }\n\n const size = image.getGeometry().getSize();\n\n const offsetRegions = [];\n let region;\n let min = null;\n let max = null;\n let regionIndex = null;\n for (let i = 0; i < regions.length; ++i) {\n region = regions[i];\n const width = region[1][0] - region[0][0];\n if (width !== 0) {\n regionIndex = i;\n if (!min) {\n min = region[0];\n }\n offsetRegions.push([\n region[0][0],\n width,\n size.get(0) - region[1][0]\n ]);\n }\n }\n if (regionIndex !== null) {\n max = regions[regionIndex][1];\n }\n\n // exit if no offsets\n if (offsetRegions.length === 0) {\n return undefined;\n }\n\n const startOffset = size.indexToOffset(index.getWithNew2D(\n min[0], min[1]\n ));\n const endOffset = size.indexToOffset(index.getWithNew2D(\n max[0], max[1]\n ));\n\n return rangeRegions(\n dataAccessor, startOffset, endOffset + 1,\n 1, offsetRegions);\n}\n\n/**\n * Get a colour iterator. The input array defines the colours and\n * their start index.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Array} colours An array of {index, colour} pairs.\n * @param {number} end The end of the range (excluded).\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function colourRange(colours, end) {\n let nextIndex = 0;\n let nextColourIndex = 0;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n if (nextColourIndex + 1 < colours.length &&\n nextIndex >= colours[nextColourIndex + 1].index) {\n ++nextColourIndex;\n }\n const result = {\n value: colours[nextColourIndex].colour,\n done: false,\n index: nextIndex\n };\n ++nextIndex;\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n","/**\n * Rescale Slope and Intercept.\n */\nexport class RescaleSlopeAndIntercept {\n\n /**\n * The slope.\n *\n * @type {number}\n */\n #slope;\n\n /**\n * The intercept.\n *\n * @type {number}\n */\n #intercept;\n\n /**\n * @param {number} slope The slope of the RSI.\n * @param {number} intercept The intercept of the RSI.\n */\n constructor(slope, intercept) {\n /*// Check the rescale slope.\n if(typeof(slope) === 'undefined') {\n slope = 1;\n }\n // Check the rescale intercept.\n if(typeof(intercept) === 'undefined') {\n intercept = 0;\n }*/\n this.#slope = slope;\n this.#intercept = intercept;\n }\n\n /**\n * Get the slope of the RSI.\n *\n * @returns {number} The slope of the RSI.\n */\n getSlope() {\n return this.#slope;\n }\n\n /**\n * Get the intercept of the RSI.\n *\n * @returns {number} The intercept of the RSI.\n */\n getIntercept() {\n return this.#intercept;\n }\n\n /**\n * Apply the RSI on an input value.\n *\n * @param {number} value The input value.\n * @returns {number} The value to rescale.\n */\n apply(value) {\n return value * this.#slope + this.#intercept;\n }\n\n /**\n * Check for RSI equality.\n *\n * @param {RescaleSlopeAndIntercept} rhs The other RSI to compare to.\n * @returns {boolean} True if both RSI are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.getSlope() === rhs.getSlope() &&\n this.getIntercept() === rhs.getIntercept();\n }\n\n /**\n * Is this RSI an ID RSI.\n *\n * @returns {boolean} True if the RSI has a slope of 1 and no intercept.\n */\n isID() {\n return (this.getSlope() === 1 && this.getIntercept() === 0);\n }\n\n} // class RescaleSlopeAndIntercept\n","import {Index} from '../math/index';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Immutable Size class.\n * Warning: the input array is NOT cloned, modifying it will\n * modify the index values.\n */\nexport class Size {\n\n /**\n * The size values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * @param {number[]} values The size values.\n */\n constructor(values) {\n if (!values || typeof values === 'undefined') {\n throw new Error('Cannot create size with no values.');\n }\n if (values.length === 0) {\n throw new Error('Cannot create size with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val) && val !== 0;\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create size with non number or zero values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the size value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number} The value.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the index.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the size.\n *\n * @returns {string} The Size as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this index.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check if a dimension exists and has more than one element.\n *\n * @param {number} dimension The dimension to check.\n * @returns {boolean} True if the size is more than one.\n */\n moreThanOne(dimension) {\n return this.length() >= dimension + 1 && this.get(dimension) !== 1;\n }\n\n /**\n * Check if the associated data is scrollable in 3D.\n *\n * @param {Matrix33} [viewOrientation] The orientation matrix.\n * @returns {boolean} True if scrollable.\n */\n canScroll3D(viewOrientation) {\n let dimension = 2;\n if (typeof viewOrientation !== 'undefined') {\n dimension = viewOrientation.getThirdColMajorDirection();\n }\n return this.moreThanOne(dimension);\n }\n\n /**\n * Check if the associated data is scrollable: either in 3D or\n * in other directions.\n *\n * @param {Matrix33} viewOrientation The orientation matrix.\n * @returns {boolean} True if scrollable.\n */\n canScroll(viewOrientation) {\n let canScroll = this.canScroll3D(viewOrientation);\n // check possible other dimensions\n for (let i = 3; i < this.length(); ++i) {\n canScroll = canScroll || this.moreThanOne(i);\n }\n return canScroll;\n }\n\n /**\n * Get the size of a given dimension.\n *\n * @param {number} dimension The dimension.\n * @param {number} [start] Optional start dimension to start counting from.\n * @returns {number} The size.\n */\n getDimSize(dimension, start) {\n if (dimension > this.length()) {\n return null;\n }\n if (typeof start === 'undefined') {\n start = 0;\n } else {\n if (start < 0 || start > dimension) {\n throw new Error('Invalid start value for getDimSize');\n }\n }\n let size = 1;\n for (let i = start; i < dimension; ++i) {\n size *= this.get(i);\n }\n return size;\n }\n\n /**\n * Get the total size.\n *\n * @param {number} [start] Optional start dimension to base the offset on.\n * @returns {number} The total size.\n */\n getTotalSize(start) {\n return this.getDimSize(this.length(), start);\n }\n\n /**\n * Check for equality.\n *\n * @param {Size} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n const length = this.length();\n if (length !== rhs.length()) {\n return false;\n }\n // check values\n for (let i = 0; i < length; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Check that an index is within bounds.\n *\n * @param {Index} index The index to check.\n * @param {number[]} dirs Optional list of directions to check.\n * @returns {boolean} True if the given coordinates are within bounds.\n */\n isInBounds(index, dirs) {\n // check input\n if (!index) {\n return false;\n }\n // check length\n const length = this.length();\n if (length !== index.length()) {\n return false;\n }\n // create dirs if not there\n if (typeof dirs === 'undefined') {\n dirs = [];\n for (let j = 0; j < length; ++j) {\n dirs.push(j);\n }\n } else {\n for (let k = 0; k < length; ++k) {\n if (dirs[k] > length - 1) {\n throw new Error('Wrong input dir value: ' + dirs[k]);\n }\n }\n }\n // check values is 0 <= v < size\n const inBound = function (value, size) {\n return value >= 0 && value < size;\n };\n // check\n for (let i = 0; i < dirs.length; ++i) {\n if (!inBound(index.get(dirs[i]), this.get(dirs[i]))) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Convert an index to an offset in memory.\n *\n * @param {Index} index The index to convert.\n * @param {number} [start] Optional start dimension to base the offset on.\n * @returns {number} The offset.\n */\n indexToOffset(index, start) {\n // TODO check for equality\n if (index.length() < this.length()) {\n throw new Error('Incompatible index and size length');\n }\n if (typeof start === 'undefined') {\n start = 0;\n } else {\n if (start < 0 || start > this.length() - 1) {\n throw new Error('Invalid start value for indexToOffset');\n }\n }\n let offset = 0;\n for (let i = start; i < this.length(); ++i) {\n offset += index.get(i) * this.getDimSize(i, start);\n }\n return offset;\n }\n\n /**\n * Convert an offset in memory to an index.\n *\n * @param {number} offset The offset to convert.\n * @returns {Index} The index.\n */\n offsetToIndex(offset) {\n const values = new Array(this.length());\n let off = offset;\n let dimSize = 0;\n for (let i = this.length() - 1; i > 0; --i) {\n dimSize = this.getDimSize(i);\n values[i] = Math.floor(off / dimSize);\n off = off - values[i] * dimSize;\n }\n values[0] = off;\n return new Index(values);\n }\n\n /**\n * Get the 2D base of this size.\n *\n * @returns {Scalar2D} The 2D base [0,1] as {x,y}.\n */\n get2D() {\n return {\n x: this.get(0),\n y: this.get(1)\n };\n }\n\n} // Size class\n","/**\n * Statistics storage class.\n * 'simple' statistics do not include median, p25 nor p75.\n */\nexport class Statistics {\n /**\n * Minimum.\n *\n * @type {number}\n */\n min;\n /**\n * Maximum.\n *\n * @type {number}\n */\n max;\n /**\n * Mean.\n *\n * @type {number}\n */\n mean;\n /**\n * Standard deviation.\n *\n * @type {number}\n */\n stdDev;\n /**\n * Median.\n *\n * @type {number|undefined}\n */\n median;\n /**\n * 25th percentile.\n *\n * @type {number|undefined}\n */\n p25;\n /**\n * 75th percentile.\n *\n * @type {number|undefined}\n */\n p75;\n\n /**\n * @param {number} min The minimum.\n * @param {number} max The maxnimum.\n * @param {number} mean The mean.\n * @param {number} stdDev The standard deviation.\n */\n constructor(min, max, mean, stdDev) {\n this.min = min;\n this.max = max;\n this.mean = mean;\n this.stdDev = stdDev;\n }\n}\n\n/**\n * Get statistics on an input array of number.\n * Note: could use {@link https://github.com/tmcw/simple-statistics}.\n *\n * @param {number[]} values The array of values to extract stats from.\n * @param {string[]} flags A list of stat value names to calculate.\n * @returns {Statistics} A statistics object.\n */\nexport function getStats(values, flags) {\n if (includesFullStatsFlags(flags)) {\n return getFullStats(values);\n } else {\n return getBasicStats(values);\n }\n}\n\n/**\n * Does the input flag list contain a full stat element?\n *\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {boolean} True if one of the flags is a full stat flag.\n */\nfunction includesFullStatsFlags(flags) {\n return typeof flags !== 'undefined' &&\n flags !== null &&\n (flags.includes('median') ||\n flags.includes('p25') ||\n flags.includes('p75'));\n}\n\n/**\n * Get simple stats: minimum, maximum, mean and standard deviation\n * of an array of values.\n *\n * @param {number[]} values The array of values to extract stats from.\n * @returns {Statistics} Simple statistics (no median, p25 nor p75).\n */\nexport function getBasicStats(values) {\n let min = values[0];\n let max = min;\n let sum = 0;\n let sumSqr = 0;\n let val = 0;\n const length = values.length;\n for (let i = 0; i < length; ++i) {\n val = values[i];\n if (val < min) {\n min = val;\n } else if (val > max) {\n max = val;\n }\n sum += val;\n sumSqr += val * val;\n }\n\n const mean = sum / length;\n // see http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance\n let variance = sumSqr / length - mean * mean;\n if (variance < 0) {\n variance = 0;\n }\n const stdDev = Math.sqrt(variance);\n\n return new Statistics(min, max, mean, stdDev);\n}\n\n/**\n * Get full stats: minimum, maximum, mean, standard deviation, median, 25%\n * and 75% percentile of an array of values.\n *\n * @param {number[]} values The array of values to extract stats from.\n * @returns {Statistics} Complete statistics (includes median, p25 and p75).\n */\nfunction getFullStats(values) {\n // get basic stats\n const stats = getBasicStats(values);\n\n // sort array... can get slow...\n values.sort(function (a, b) {\n return a - b;\n });\n\n stats.median = getPercentile(values, 0.5);\n stats.p25 = getPercentile(values, 0.25);\n stats.p75 = getPercentile(values, 0.75);\n\n return stats;\n}\n\n/**\n * Get an arrays' percentile. Uses linear interpolation for percentiles\n * that lie between data points.\n * See: {@link https://en.wikipedia.org/wiki/Percentile} (second variant interpolation).\n *\n * @param {number[]} values The sorted array of values.\n * @param {number} ratio The percentile ratio [0-1].\n * @returns {number} The percentile.\n */\nfunction getPercentile(values, ratio) {\n // check input\n if (values.length === 0) {\n throw new Error('Empty array provided for percentile calculation.');\n }\n if (ratio < 0 || ratio > 1) {\n throw new Error(\n 'Invalid ratio provided for percentile calculation: ' + ratio);\n }\n // return min for ratio=0 amd max for ratio=1\n if (ratio === 0) {\n return values[0];\n } else if (ratio === 1) {\n return values[values.length - 1];\n }\n // general case: interpolate between indices if needed\n const i = (values.length - 1) * ratio;\n const i0 = Math.floor(i);\n const v0 = values[i0];\n const v1 = values[i0 + 1];\n return v0 + (v1 - v0) * (i - i0);\n}\n\n/**\n * Unique ID generator.\n *\n * See {@link http://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript}\n * and this {@link http://stackoverflow.com/a/13403498 answer}.\n *\n * @returns {string} A unique ID.\n */\nexport function guid() {\n return Math.random().toString(36).substring(2, 15);\n}\n\n/**\n * Number range.\n */\nexport class NumberRange {\n /**\n * @type {number}\n */\n min;\n /**\n * @type {number}\n */\n max;\n /**\n * @param {number} min The minimum.\n * @param {number} max The maximum.\n */\n constructor(min, max) {\n this.min = min;\n this.max = max;\n }\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Immutable Spacing class.\n * Warning: the input array is NOT cloned, modifying it will\n * modify the index values.\n */\nexport class Spacing {\n\n /**\n * The spacing values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * @param {number[]} values The spacing values.\n */\n constructor(values) {\n if (!values || typeof values === 'undefined') {\n throw new Error('Cannot create spacing with no values.');\n }\n if (values.length === 0) {\n throw new Error('Cannot create spacing with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val) && val !== 0;\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create spacing with non number or zero values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the spacing value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number} The value.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the spacing.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the spacing.\n *\n * @returns {string} The spacing as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this spacing.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check for equality.\n *\n * @param {Spacing} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n const length = this.length();\n if (length !== rhs.length()) {\n return false;\n }\n // check values\n for (let i = 0; i < length; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Get the 2D base of this size.\n *\n * @returns {Scalar2D} The 2D base [col,row] as {x,y}.\n */\n get2D() {\n return {\n x: this.get(0),\n y: this.get(1)\n };\n }\n\n} // Spacing class\n","import {\n getIdentityMat33,\n REAL_WORLD_EPSILON\n} from '../math/matrix';\nimport {Point3D, Point} from '../math/point';\nimport {Vector3D} from '../math/vector';\nimport {Index} from '../math/index';\nimport {getBasicStats} from '../math/stats';\nimport {precisionRound} from '../utils/string';\nimport {logger} from '../utils/logger';\nimport {Size} from './size';\nimport {Spacing} from './spacing';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\n/* eslint-enable no-unused-vars */\n\n/**\n * 2D/3D Geometry class.\n */\nexport class Geometry {\n\n /**\n * Array of origins.\n *\n * @type {Point3D[]}\n */\n #origins;\n\n /**\n * Data size.\n *\n * @type {Size}\n */\n #size;\n\n /**\n * Data spacing.\n *\n * @type {Spacing}\n */\n #spacing;\n\n /**\n * Local helper object for time points.\n *\n * @type {Object}\n */\n #timeOrigins = {};\n\n /**\n * Initial time index.\n *\n * @type {number}\n */\n #initialTime;\n\n /**\n * Data orientation.\n *\n * @type {Matrix33}\n */\n #orientation = getIdentityMat33();\n\n /**\n * Flag to know if new origins were added.\n *\n * @type {boolean}\n */\n #newOrigins = false;\n\n /**\n * @param {Point3D} origin The object origin (a 3D point).\n * @param {Size} size The object size.\n * @param {Spacing} spacing The object spacing.\n * @param {Matrix33} [orientation] The object orientation (3*3 matrix,\n * default to 3*3 identity).\n * @param {number} [time] Optional time index.\n */\n constructor(origin, size, spacing, orientation, time) {\n this.#origins = [origin];\n this.#size = size;\n this.#spacing = spacing;\n if (typeof time !== 'undefined') {\n this.#initialTime = time;\n this.#timeOrigins[time] = [origin];\n }\n // check input orientation\n if (typeof orientation !== 'undefined') {\n this.#orientation = orientation;\n }\n }\n\n /**\n * Get the time value that was passed at construction.\n *\n * @returns {number} The time value.\n */\n getInitialTime() {\n return this.#initialTime;\n }\n\n /**\n * Get the total number of slices.\n * Can be different from what is stored in the size object\n * during a volume with time points creation process.\n *\n * @returns {number} The total count.\n */\n getCurrentTotalNumberOfSlices() {\n const keys = Object.keys(this.#timeOrigins);\n if (keys.length === 0) {\n return this.#origins.length;\n }\n let count = 0;\n for (let i = 0; i < keys.length; ++i) {\n count += this.#timeOrigins[keys[i]].length;\n }\n return count;\n }\n\n /**\n * Check if a time point has associated slices.\n *\n * @param {number} time The time point to check.\n * @returns {boolean} True if slices are present.\n */\n hasSlicesAtTime(time) {\n return typeof this.#timeOrigins[time] !== 'undefined';\n }\n\n /**\n * Get the number of slices stored for time points preceding\n * the input one.\n *\n * @param {number} time The time point to check.\n * @returns {number|undefined} The count.\n */\n getCurrentNumberOfSlicesBeforeTime(time) {\n const keys = Object.keys(this.#timeOrigins);\n if (keys.length === 0) {\n return undefined;\n }\n let count = 0;\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n if (parseInt(key, 10) === time) {\n break;\n }\n count += this.#timeOrigins[key].length;\n }\n return count;\n }\n\n /**\n * Get the object origin.\n * This should be the lowest origin to ease calculations (?).\n *\n * @returns {Point3D} The object origin.\n */\n getOrigin() {\n return this.#origins[0];\n }\n\n /**\n * Get the object origins.\n *\n * @returns {Point3D[]} The object origins.\n */\n getOrigins() {\n return this.#origins;\n }\n\n /**\n * Check if a point is in the origin list.\n *\n * @param {Point3D} point3D The point to check.\n * @param {number} tol The comparison tolerance\n * default to Number.EPSILON.\n * @returns {boolean} True if in list.\n */\n includesOrigin(point3D, tol) {\n for (let i = 0; i < this.#origins.length; ++i) {\n if (this.#origins[i].isSimilar(point3D, tol)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Get the object size.\n * Warning: the size comes as stored in DICOM, meaning that it could\n * be oriented.\n *\n * @param {Matrix33} [viewOrientation] The view orientation (optional).\n * @returns {Size} The object size.\n */\n getSize(viewOrientation) {\n let res = this.#size;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n let values = getOrientedArray3D(\n [\n this.#size.get(0),\n this.#size.get(1),\n this.#size.get(2)\n ],\n viewOrientation);\n values = values.map(Math.abs);\n res = new Size(values.concat(this.#size.getValues().slice(3)));\n }\n return res;\n }\n\n /**\n * Calculate slice spacing from origins and replace current\n * if needed.\n */\n #updateSliceSpacing() {\n const geoSliceSpacing = getSliceGeometrySpacing(this.#origins);\n // update local if needed\n if (typeof geoSliceSpacing !== 'undefined' &&\n this.#spacing.get(2) !== geoSliceSpacing) {\n logger.trace('Using geometric spacing ' + geoSliceSpacing +\n ' instead of tag spacing ' + this.#spacing.get(2));\n const values = this.#spacing.getValues();\n values[2] = geoSliceSpacing;\n this.#spacing = new Spacing(values);\n }\n }\n\n /**\n * Get the object spacing.\n * Warning: the spacing comes as stored in DICOM, meaning that it could\n * be oriented.\n *\n * @param {Matrix33} [viewOrientation] The view orientation (optional).\n * @returns {Spacing} The object spacing.\n */\n getSpacing(viewOrientation) {\n // update slice spacing after appendSlice\n if (this.#newOrigins) {\n this.#updateSliceSpacing();\n this.#newOrigins = false;\n }\n let res = this.#spacing;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n let orientedValues = getOrientedArray3D(\n [\n this.#spacing.get(0),\n this.#spacing.get(1),\n this.#spacing.get(2)\n ],\n viewOrientation);\n orientedValues = orientedValues.map(Math.abs);\n res = new Spacing(orientedValues);\n }\n return res;\n }\n\n /**\n * Get the image spacing in real world.\n *\n * @returns {Spacing} The object spacing.\n */\n getRealSpacing() {\n // asOneAndZeros to not change spacing values...\n return this.getSpacing(\n this.#orientation.getInverse().asOneAndZeros()\n );\n }\n\n /**\n * Get the object orientation.\n *\n * @returns {Matrix33} The object orientation.\n */\n getOrientation() {\n return this.#orientation;\n }\n\n /**\n * Get the slice position of a point in the current slice layout.\n * Slice indices increase with decreasing origins (high index -> low origin),\n * this simplified the handling of reconstruction since it means\n * the displayed data is in the same 'direction' as the extracted data.\n * As seen in the getOrigin method, the main origin is the lowest one.\n * This implies that the index to world and reverse method do some flipping\n * magic...\n *\n * @param {Point3D} point The point to evaluate.\n * @param {number} time Optional time index.\n * @returns {number} The slice index.\n */\n getSliceIndex(point, time) {\n // cannot use this.worldToIndex(point).getK() since\n // we cannot guaranty consecutive slices...\n\n let localOrigins = this.#origins;\n if (typeof time !== 'undefined') {\n localOrigins = this.#timeOrigins[time];\n }\n\n // find the closest origin\n const closestOriginIndex = point.getClosest(localOrigins);\n const closestOrigin = localOrigins[closestOriginIndex];\n\n // direction between the input point and the closest origin\n const pointDir = point.minus(closestOrigin);\n\n // use third orientation matrix column as plane normal vector\n const normal = new Vector3D(\n this.#orientation.get(0, 2),\n this.#orientation.get(1, 2),\n this.#orientation.get(2, 2)\n );\n\n // codirectional vectors: above slice index\n // oposite vectors: below slice index\n const isCodirectional = normal.isCodirectional(pointDir);\n const sliceIndex = isCodirectional\n ? closestOriginIndex + 1 : closestOriginIndex;\n\n return sliceIndex;\n }\n\n /**\n * Append an origin to the geometry.\n *\n * @param {Point3D} origin The origin to append.\n * @param {number} index The index at which to append.\n * @param {number} [time] Optional time index.\n */\n appendOrigin(origin, index, time) {\n // equal callback\n const equalToOrigin = function (element) {\n return element.equals(origin);\n };\n if (typeof time !== 'undefined') {\n // check if not already in list\n const found = this.#timeOrigins[time].find(equalToOrigin);\n if (typeof found !== 'undefined') {\n throw new Error('Cannot append same time origin twice');\n }\n // add in origin array\n this.#timeOrigins[time].splice(index, 0, origin);\n }\n if (typeof time === 'undefined' || time === this.#initialTime) {\n // check if not already in list\n const found = this.#origins.find(equalToOrigin);\n if (typeof found !== 'undefined') {\n throw new Error('Cannot append same origin twice');\n }\n // update flag\n this.#newOrigins = true;\n // add in origin array\n this.#origins.splice(index, 0, origin);\n // increment second dimension\n const values = this.#size.getValues();\n values[2] += 1;\n this.#size = new Size(values);\n }\n }\n\n /**\n * Append a frame to the geometry.\n *\n * @param {Point3D} origin The origin to append.\n * @param {number} time Optional time index.\n */\n appendFrame(origin, time) {\n // add origin to list\n this.#timeOrigins[time] = [origin];\n // increment third dimension\n const sizeValues = this.#size.getValues();\n const spacingValues = this.#spacing.getValues();\n if (sizeValues.length === 4) {\n sizeValues[3] += 1;\n } else {\n sizeValues.push(2);\n spacingValues.push(1);\n }\n this.#size = new Size(sizeValues);\n this.#spacing = new Spacing(spacingValues);\n }\n\n /**\n * Get a string representation of the geometry.\n *\n * @returns {string} The geometry as a string.\n */\n toString() {\n return 'Origin: ' + this.getOrigin() +\n ', Size: ' + this.getSize() +\n ', Spacing: ' + this.getSpacing() +\n ', Orientation: ' + this.getOrientation();\n }\n\n /**\n * Check for equality.\n *\n * @param {Geometry} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getOrigin().equals(rhs.getOrigin()) &&\n this.getSize().equals(rhs.getSize()) &&\n this.getSpacing().equals(rhs.getSpacing());\n }\n\n /**\n * Check that a point is within bounds.\n *\n * @param {Point} point The point to check.\n * @returns {boolean} True if the given coordinates are within bounds.\n */\n isInBounds(point) {\n return this.isIndexInBounds(this.worldToIndex(point));\n }\n\n /**\n * Check that a index is within bounds.\n *\n * @param {Index} index The index to check.\n * @param {number[]} [dirs] Optional list of directions to check.\n * @returns {boolean} True if the given coordinates are within bounds.\n */\n isIndexInBounds(index, dirs) {\n return this.getSize().isInBounds(index, dirs);\n }\n\n /**\n * Convert an index into world coordinates.\n *\n * @param {Index} index The index to convert.\n * @returns {Point} The corresponding point.\n */\n indexToWorld(index) {\n // apply spacing\n // (spacing is oriented, apply before orientation)\n const spacing = this.getSpacing();\n const orientedPoint3D = new Point3D(\n index.get(0) * spacing.get(0),\n index.get(1) * spacing.get(1),\n index.get(2) * spacing.get(2)\n );\n // de-orient\n const point3D = this.getOrientation().multiplyPoint3D(orientedPoint3D);\n // keep >3d values\n const values = index.getValues();\n const origin = this.getOrigin();\n values[0] = origin.getX() + point3D.getX();\n values[1] = origin.getY() + point3D.getY();\n values[2] = origin.getZ() + point3D.getZ();\n // return point\n return new Point(values);\n }\n\n /**\n * Convert a 3D point into world coordinates.\n *\n * @param {Point3D} point The 3D point to convert.\n * @returns {Point3D} The corresponding world 3D point.\n */\n pointToWorld(point) {\n // apply spacing\n // (spacing is oriented, apply before orientation)\n const spacing = this.getSpacing();\n const orientedPoint3D = new Point3D(\n point.getX() * spacing.get(0),\n point.getY() * spacing.get(1),\n point.getZ() * spacing.get(2)\n );\n // de-orient\n const point3D = this.getOrientation().multiplyPoint3D(orientedPoint3D);\n // return point3D\n const origin = this.getOrigin();\n return new Point3D(\n origin.getX() + point3D.getX(),\n origin.getY() + point3D.getY(),\n origin.getZ() + point3D.getZ()\n );\n }\n\n /**\n * Convert world coordinates into an index.\n *\n * @param {Point} point The point to convert.\n * @returns {Index} The corresponding index.\n */\n worldToIndex(point) {\n // compensate for origin\n // (origin is not oriented, compensate before orientation)\n // TODO: use slice origin...\n const origin = this.getOrigin();\n const point3D = new Point3D(\n point.get(0) - origin.getX(),\n point.get(1) - origin.getY(),\n point.get(2) - origin.getZ()\n );\n // orient\n const orientedPoint3D =\n this.getOrientation().getInverse().multiplyPoint3D(point3D);\n // keep >3d values\n const values = point.getValues();\n // apply spacing and round\n const spacing = this.getSpacing();\n values[0] = Math.round(orientedPoint3D.getX() / spacing.get(0));\n values[1] = Math.round(orientedPoint3D.getY() / spacing.get(1));\n values[2] = Math.round(orientedPoint3D.getZ() / spacing.get(2));\n\n // return index\n return new Index(values);\n }\n\n /**\n * Convert world coordinates into an point.\n *\n * @param {Point} point The world point to convert.\n * @returns {Point3D} The corresponding point.\n */\n worldToPoint(point) {\n // compensate for origin\n // (origin is not oriented, compensate before orientation)\n const origin = this.getOrigin();\n const point3D = new Point3D(\n point.get(0) - origin.getX(),\n point.get(1) - origin.getY(),\n point.get(2) - origin.getZ()\n );\n // orient\n const orientedPoint3D =\n this.getOrientation().getInverse().multiplyPoint3D(point3D);\n // keep >3d values\n const values = point.getValues();\n // apply spacing and round\n const spacing = this.getSpacing();\n values[0] = orientedPoint3D.getX() / spacing.get(0);\n values[1] = orientedPoint3D.getY() / spacing.get(1);\n values[2] = orientedPoint3D.getZ() / spacing.get(2);\n\n // return index\n return new Point3D(values[0], values[1], values[2]);\n }\n\n} // class Geometry\n\n/**\n * Get the oriented values of an input 3D array.\n *\n * @param {number[]} array3D The 3D array.\n * @param {Matrix33} orientation The orientation 3D matrix.\n * @returns {number[]} The values reordered according to the orientation.\n */\nexport function getOrientedArray3D(array3D, orientation) {\n // values = orientation * orientedValues\n // -> inv(orientation) * values = orientedValues\n return orientation.getInverse().multiplyArray3D(array3D);\n}\n\n/**\n * Get the raw values of an oriented input 3D array.\n *\n * @param {number[]} array3D The 3D array.\n * @param {Matrix33} orientation The orientation 3D matrix.\n * @returns {number[]} The values reordered to compensate the orientation.\n */\nexport function getDeOrientedArray3D(array3D, orientation) {\n // values = orientation * orientedValues\n return orientation.multiplyArray3D(array3D);\n}\n\n/**\n * Get the slice spacing from the difference in the Z directions\n * of input origins.\n *\n * @param {Point3D[]} origins An array of Point3D.\n * @returns {number|undefined} The spacing.\n */\nexport function getSliceGeometrySpacing(origins) {\n // check origins\n if (origins.length <= 1) {\n return;\n }\n\n const spacings = [];\n for (let i = 0; i < origins.length - 1; ++i) {\n const origin1 = origins[i];\n const origin2 = origins[i + 1];\n const sliceSpacing = origin1.getDistance(origin2);\n if (sliceSpacing === 0) {\n throw new Error('Zero slice spacing ' +\n origin1.toString() + ' ' + origin2.toString());\n }\n spacings.push(sliceSpacing);\n }\n\n // use rounded mean value as spacing\n const stats = getBasicStats(spacings);\n const spacing = precisionRound(stats.mean, 4);\n\n // warn if non constant\n if (stats.stdDev > REAL_WORLD_EPSILON) {\n logger.warn('Varying slice spacing, value: ' + spacing +\n ' (mean: ' + stats.mean +\n ', min: ' + stats.min +\n ', max: ' + stats.max +\n ', stdDev: ' + stats.stdDev + ')');\n }\n\n return spacing;\n}\n","import {DataElement} from './dataElement';\n\n/**\n * Pad an input string with a '0' to form a 2 digit one.\n *\n * @param {string} str The string to pad.\n * @returns {string} The padded string.\n */\nfunction padZeroTwoDigit(str) {\n return ('0' + str).slice(-2);\n}\n\n/**\n * Get a 'date' object with {year, monthIndex, day} ready for the\n * Date constructor from a DICOM element with vr=DA.\n *\n * @param {DataElement} element The DICOM element with date information.\n * @returns {{year, monthIndex, day}|undefined} The 'date' object.\n */\nexport function getDate(element) {\n if (typeof element === 'undefined') {\n return undefined;\n }\n if (element.value.length !== 1) {\n return undefined;\n }\n const daValue = element.value[0];\n // Two possible formats:\n // - standard 'YYYYMMDD'\n // - non-standard 'YYYY.MM.DD' (previous ACR-NEMA)\n let monthBeginIndex = 4;\n let dayBeginIndex = 6;\n if (daValue.length === 10) {\n monthBeginIndex = 5;\n dayBeginIndex = 8;\n }\n const daYears = parseInt(daValue.substring(0, 4), 10);\n // 0-11 range\n const daMonthIndex = daValue.length >= monthBeginIndex + 2\n ? parseInt(daValue.substring(\n monthBeginIndex, monthBeginIndex + 2), 10) - 1 : 0;\n const daDay = daValue.length === dayBeginIndex + 2\n ? parseInt(daValue.substring(\n dayBeginIndex, dayBeginIndex + 2), 10) : 0;\n return {\n year: daYears,\n monthIndex: daMonthIndex,\n day: daDay\n };\n}\n\n/**\n * Get a time object with {hours, minutes, seconds} ready for the\n * Date constructor from a DICOM element with vr=TM.\n *\n * @param {DataElement} element The DICOM element with date information.\n * @returns {{hours, minutes, seconds, milliseconds}|undefined} The time object.\n */\nexport function getTime(element) {\n if (typeof element === 'undefined') {\n return undefined;\n }\n if (element.value.length !== 1) {\n return undefined;\n }\n // format: HH[MMSS.FFFFFF]\n const tmValue = element.value[0];\n const tmHours = parseInt(tmValue.substring(0, 2), 10);\n const tmMinutes = tmValue.length >= 4\n ? parseInt(tmValue.substring(2, 4), 10) : 0;\n const tmSeconds = tmValue.length >= 6\n ? parseInt(tmValue.substring(4, 6), 10) : 0;\n const tmFracSecondsStr = tmValue.length >= 8\n ? tmValue.substring(7, 10) : 0;\n const tmMilliSeconds = tmFracSecondsStr === 0 ? 0\n : parseInt(tmFracSecondsStr, 10) *\n Math.pow(10, 3 - tmFracSecondsStr.length);\n return {\n hours: tmHours,\n minutes: tmMinutes,\n seconds: tmSeconds,\n milliseconds: tmMilliSeconds\n };\n}\n\n/**\n * Get a 'dateTime' object with {date, time} ready for the\n * Date constructor from a DICOM element with vr=DT.\n *\n * @param {DataElement} element The DICOM element with date-time information.\n * @returns {{date, time}|undefined} The time object.\n */\nexport function getDateTime(element) {\n if (typeof element === 'undefined') {\n return undefined;\n }\n if (element.value.length !== 1) {\n return undefined;\n }\n // format: YYYYMMDDHHMMSS.FFFFFF&ZZXX\n const dtFullValue = element.value[0];\n // remove offset (&ZZXX)\n const dtValue = dtFullValue.split('&')[0];\n const dateDataElement = new DataElement('DA');\n dateDataElement.value = [dtValue.substring(0, 8)];\n const dtDate = getDate(dateDataElement);\n const timeDataElement = new DataElement('TM');\n timeDataElement.value = [dtValue.substring(8)];\n const dtTime = dtValue.length >= 9\n ? getTime(timeDataElement) : undefined;\n return {\n date: dtDate,\n time: dtTime\n };\n}\n\n/**\n * Extract date values from a Date object.\n *\n * @param {Date} date The input date.\n * @returns {{year, monthIndex, day}} A 'date' object.\n */\nexport function dateToDateObj(date) {\n return {\n year: date.getFullYear().toString(),\n monthIndex: padZeroTwoDigit((date.getMonth() + 1).toString()),\n day: padZeroTwoDigit(date.getDate().toString())\n };\n}\n\n/**\n * Extract time values from a Date object.\n *\n * @param {Date} date The input date.\n * @returns {{hours, minutes, seconds}} A 'time' object.\n */\nexport function dateToTimeObj(date) {\n return {\n hours: padZeroTwoDigit(date.getHours().toString()),\n minutes: padZeroTwoDigit(date.getMinutes().toString()),\n seconds: padZeroTwoDigit(date.getSeconds().toString())\n };\n}\n\n/**\n * Get a DICOM formated date string.\n *\n * @param {{year, monthIndex, day}} dateObj The date to format.\n * @returns {string} The formated date.\n */\nexport function getDicomDate(dateObj) {\n // YYYYMMDD\n return (\n dateObj.year +\n dateObj.monthIndex +\n dateObj.day\n );\n}\n\n/**\n * Get a DICOM formated time string.\n *\n * @param {{hours, minutes, seconds}} dateObj The date to format.\n * @returns {string} The formated time.\n */\nexport function getDicomTime(dateObj) {\n // HHMMSS\n return (\n dateObj.hours +\n dateObj.minutes +\n dateObj.seconds\n );\n}\n\n/**\n * Get a DICOM formated datetime string.\n *\n * @param {{date, time}} datetime The datetime to format.\n * @returns {string} The formated datetime.\n */\nexport function getDicomDateTime(datetime) {\n // HHMMSS\n let res = getDicomDate(datetime.date);\n if (typeof datetime.time !== 'undefined') {\n res += getDicomTime(datetime.time);\n }\n return res;\n}\n","import {\n DicomParser,\n getTransferSyntaxName\n} from './dicomParser';\nimport {\n getDate,\n getTime,\n getDateTime\n} from './dicomDate';\nimport {\n isPixelDataTag,\n isItemDelimitationItemTag,\n isSequenceDelimitationItemTag,\n getItemTag,\n getItemDelimitationItemTag,\n getSequenceDelimitationItemTag,\n getPixelDataTag,\n getTagFromKey\n} from './dicomTag';\nimport {isNativeLittleEndian} from './dataReader';\nimport {getOrientationFromCosines} from '../math/orientation';\nimport {Spacing} from '../image/spacing';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Tag} from './dicomTag';\nimport {DataElement} from './dataElement';\nimport {Matrix33} from '../math/matrix';\n/* eslint-enable no-unused-vars */\n\n/**\n * @typedef {Object} DataElements\n */\n\n/**\n * Dump the DICOM tags to a string in the same way as the\n * DCMTK `dcmdump` command (https://support.dcmtk.org/docs-dcmrt/dcmdump.html).\n *\n * @param {Object} dicomElements The dicom elements.\n * @returns {string} The dumped file.\n */\nexport function dcmdump(dicomElements) {\n const keys = Object.keys(dicomElements);\n let result = '\\n';\n result += '# Dicom-File-Format\\n';\n result += '\\n';\n result += '# Dicom-Meta-Information-Header\\n';\n result += '# Used TransferSyntax: ';\n if (isNativeLittleEndian()) {\n result += 'Little Endian Explicit\\n';\n } else {\n result += 'NOT Little Endian Explicit\\n';\n }\n let dicomElement = null;\n let tag = null;\n let checkHeader = true;\n for (let i = 0, leni = keys.length; i < leni; ++i) {\n dicomElement = dicomElements[keys[i]];\n tag = getTagFromKey(keys[i]);\n if (checkHeader && tag.getGroup() !== '0002') {\n result += '\\n';\n result += '# Dicom-Data-Set\\n';\n result += '# Used TransferSyntax: ';\n const syntax = dicomElements['00020010'].value[0];\n result += getTransferSyntaxName(syntax);\n result += '\\n';\n checkHeader = false;\n }\n result += getElementAsString(tag, dicomElement) + '\\n';\n }\n return result;\n}\n\n/**\n * Get a data element value as a string.\n *\n * @param {Tag} tag The DICOM tag.\n * @param {object} dicomElement The DICOM element.\n * @param {boolean} [pretty] When set to true, returns a 'pretified' content.\n * @returns {string} A string representation of the DICOM element.\n */\nfunction getElementValueAsString(tag, dicomElement, pretty) {\n let str = '';\n const strLenLimit = 65;\n\n // dafault to pretty output\n if (typeof pretty === 'undefined') {\n pretty = true;\n }\n // check dicom element input\n if (typeof dicomElement === 'undefined' || dicomElement === null) {\n return str;\n }\n\n // Polyfill for Number.isInteger.\n const isInteger = Number.isInteger || function (value) {\n return typeof value === 'number' &&\n isFinite(value) &&\n Math.floor(value) === value;\n };\n\n // TODO Support sequences.\n\n if (dicomElement.vr !== 'SQ' &&\n dicomElement.value.length === 1 && dicomElement.value[0] === '') {\n str += '(no value available)';\n } else if (isPixelDataTag(tag) &&\n dicomElement.undefinedLength) {\n str = '(PixelSequence)';\n } else if (dicomElement.vr === 'DA' && pretty) {\n const daObj = getDate(dicomElement);\n const da = new Date(daObj.year, daObj.monthIndex, daObj.day);\n str = da.toLocaleDateString();\n } else if (dicomElement.vr === 'TM' && pretty) {\n const tmObj = getTime(dicomElement);\n str = tmObj.hours + ':' + tmObj.minutes + ':' + tmObj.seconds;\n } else {\n let isOtherVR = false;\n if (dicomElement.vr.length !== 0) {\n isOtherVR = (dicomElement.vr[0].toUpperCase() === 'O');\n }\n const isFloatNumberVR = (dicomElement.vr === 'FL' ||\n dicomElement.vr === 'FD' ||\n dicomElement.vr === 'DS');\n let valueStr = '';\n for (let k = 0, lenk = dicomElement.value.length; k < lenk; ++k) {\n valueStr = '';\n if (k !== 0) {\n valueStr += '\\\\';\n }\n if (isFloatNumberVR) {\n const num = Number(dicomElement.value[k]);\n if (!isInteger(num) && pretty) {\n valueStr += num.toPrecision(4);\n } else {\n valueStr += num.toString();\n }\n } else if (isOtherVR) {\n let tmp = dicomElement.value[k].toString(16);\n if (dicomElement.vr === 'OB') {\n tmp = '00'.substring(0, 2 - tmp.length) + tmp;\n } else {\n tmp = '0000'.substring(0, 4 - tmp.length) + tmp;\n }\n valueStr += tmp;\n } else {\n valueStr += dicomElement.value[k];\n }\n // check length\n if (str.length + valueStr.length <= strLenLimit) {\n str += valueStr;\n } else {\n str += '...';\n break;\n }\n }\n }\n return str;\n}\n\n/**\n * Get a data element as a string.\n *\n * @param {Tag} tag The DICOM tag.\n * @param {object} dicomElement The DICOM element.\n * @param {string} [prefix] A string to prepend this one.\n * @returns {string} The element as a string.\n */\nfunction getElementAsString(tag, dicomElement, prefix) {\n // default prefix\n prefix = prefix || '';\n\n // get tag anme from dictionary\n const tagName = tag.getNameFromDictionary();\n\n let deSize = dicomElement.value.length;\n let isOtherVR = false;\n if (dicomElement.vr.length !== 0) {\n isOtherVR = (dicomElement.vr[0].toUpperCase() === 'O');\n }\n\n // no size for delimitations\n if (isItemDelimitationItemTag(tag) ||\n isSequenceDelimitationItemTag(tag)) {\n deSize = 0;\n } else if (isOtherVR) {\n deSize = 1;\n }\n\n const isPixSequence = (isPixelDataTag(tag) &&\n dicomElement.undefinedLength);\n\n let line = null;\n\n // (group,element)\n line = '(';\n line += tag.getGroup().toLowerCase();\n line += ',';\n line += tag.getElement().toLowerCase();\n line += ') ';\n // value representation\n line += dicomElement.vr;\n // value\n if (dicomElement.vr !== 'SQ' &&\n dicomElement.value.length === 1 &&\n dicomElement.value[0] === '') {\n line += ' (no value available)';\n deSize = 0;\n } else {\n // simple number display\n if (dicomElement.vr === 'na') {\n line += ' ';\n line += dicomElement.value[0];\n } else if (isPixSequence) {\n // pixel sequence\n line += ' (PixelSequence #=' + deSize + ')';\n } else if (dicomElement.vr === 'SQ') {\n line += ' (Sequence with';\n if (dicomElement.undefinedLength) {\n line += ' undefined';\n } else {\n line += ' explicit';\n }\n line += ' length #=';\n line += dicomElement.value.length;\n line += ')';\n } else if (isOtherVR ||\n dicomElement.vr === 'pi' ||\n dicomElement.vr === 'UL' ||\n dicomElement.vr === 'US' ||\n dicomElement.vr === 'SL' ||\n dicomElement.vr === 'SS' ||\n dicomElement.vr === 'FL' ||\n dicomElement.vr === 'FD' ||\n dicomElement.vr === 'AT') {\n // 'O'ther array, limited display length\n line += ' ';\n line += getElementValueAsString(tag, dicomElement, false);\n } else {\n // default\n line += ' [';\n line += getElementValueAsString(tag, dicomElement, false);\n line += ']';\n }\n }\n\n // align #\n const nSpaces = 55 - line.length;\n if (nSpaces > 0) {\n for (let s = 0; s < nSpaces; ++s) {\n line += ' ';\n }\n }\n line += ' # ';\n if (dicomElement.vl < 100) {\n line += ' ';\n }\n if (dicomElement.vl < 10) {\n line += ' ';\n }\n line += dicomElement.vl;\n line += ', ';\n line += deSize; //dictElement[1];\n line += ' ';\n if (tagName !== null) {\n line += tagName;\n } else {\n line += 'Unknown Tag & Data';\n }\n\n let message = null;\n\n // continue for sequence\n if (dicomElement.vr === 'SQ') {\n let item = null;\n for (let l = 0, lenl = dicomElement.value.length; l < lenl; ++l) {\n item = dicomElement.value[l];\n const itemKeys = Object.keys(item);\n if (itemKeys.length === 0) {\n continue;\n }\n\n // get the item element\n const itemTag = getItemTag();\n const itemElement = item['FFFEE000'];\n message = '(Item with';\n if (itemElement.undefinedLength) {\n message += ' undefined';\n } else {\n message += ' explicit';\n }\n message += ' length #=' + (itemKeys.length - 1) + ')';\n itemElement.value = [message];\n itemElement.vr = 'na';\n\n line += '\\n';\n line += getElementAsString(itemTag, itemElement, prefix + ' ');\n\n for (let m = 0, lenm = itemKeys.length; m < lenm; ++m) {\n const itemTag = getTagFromKey(itemKeys[m]);\n if (itemKeys[m] !== 'xFFFEE000') {\n line += '\\n';\n line += getElementAsString(itemTag, item[itemKeys[m]],\n prefix + ' ');\n }\n }\n\n message = '(ItemDelimitationItem';\n if (!itemElement.undefinedLength) {\n message += ' for re-encoding';\n }\n message += ')';\n const itemDelimTag = getItemDelimitationItemTag();\n const itemDelimElement = {\n vr: 'na',\n vl: '0',\n value: [message]\n };\n line += '\\n';\n line += getElementAsString(\n itemDelimTag, itemDelimElement, prefix + ' ');\n\n }\n\n message = '(SequenceDelimitationItem';\n if (!dicomElement.undefinedLength) {\n message += ' for re-encod.';\n }\n message += ')';\n const sqDelimTag = getSequenceDelimitationItemTag();\n const sqDelimElement = {\n vr: 'na',\n vl: '0',\n value: [message]\n };\n line += '\\n';\n line += getElementAsString(sqDelimTag, sqDelimElement, prefix);\n } else if (isPixSequence) {\n // pixel sequence\n let pixItem = null;\n for (let n = 0, lenn = dicomElement.value.length; n < lenn; ++n) {\n pixItem = dicomElement.value[n];\n line += '\\n';\n pixItem.vr = 'pi';\n line += getElementAsString(\n getPixelDataTag(), pixItem, prefix + ' ');\n }\n\n const pixDelimTag = getSequenceDelimitationItemTag();\n const pixDelimElement = {\n vr: 'na',\n vl: '0',\n value: ['(SequenceDelimitationItem)']\n };\n line += '\\n';\n line += getElementAsString(pixDelimTag, pixDelimElement, prefix);\n }\n\n return prefix + line;\n}\n\n/**\n * Extract the 2D size from dicom elements.\n *\n * @param {DataElements} elements The DICOM elements.\n * @returns {number[]} The size.\n */\nexport function getImage2DSize(elements) {\n // rows\n const rows = elements['00280010'];\n if (typeof rows === 'undefined') {\n throw new Error('Missing DICOM image number of rows');\n }\n if (rows.value.length === 0) {\n throw new Error('Empty DICOM image number of rows');\n }\n // columns\n const columns = elements['00280011'];\n if (typeof columns === 'undefined') {\n throw new Error('Missing DICOM image number of columns');\n }\n if (columns.value.length === 0) {\n throw new Error('Empty DICOM image number of columns');\n }\n return [columns.value[0], rows.value[0]];\n}\n\n/**\n * Get the pixel spacing from the different spacing tags.\n *\n * @param {DataElements} elements The DICOM elements.\n * @returns {Spacing} The read spacing or the default [1,1].\n */\nexport function getPixelSpacing(elements) {\n // default\n let rowSpacing = 1;\n let columnSpacing = 1;\n\n // 1. PixelSpacing\n // 2. ImagerPixelSpacing\n // 3. NominalScannedPixelSpacing\n // 4. PixelAspectRatio\n const keys = ['00280030', '00181164', '00182010', '00280034'];\n for (let k = 0; k < keys.length; ++k) {\n const spacing = elements[keys[k]];\n if (spacing && spacing.value.length === 2) {\n // spacing order: [row, column]\n rowSpacing = parseFloat(spacing.value[0]);\n columnSpacing = parseFloat(spacing.value[1]);\n break;\n }\n }\n\n // check\n if (columnSpacing === 0) {\n logger.warn('Zero column spacing.');\n columnSpacing = 1;\n }\n if (rowSpacing === 0) {\n logger.warn('Zero row spacing.');\n rowSpacing = 1;\n }\n\n // return\n // (slice spacing will be calculated using the image position patient)\n return new Spacing([columnSpacing, rowSpacing, 1]);\n}\n\n/**\n * Get the pixel data unit.\n *\n * @param {DataElements} elements The DICOM elements.\n * @returns {string|null} The unit value if available.\n */\nexport function getPixelUnit(elements) {\n let unit;\n // 1. RescaleType\n // 2. Units (for PET)\n const keys = ['00281054', '00541001'];\n for (let i = 0; i < keys.length; ++i) {\n const element = elements[keys[i]];\n if (typeof element !== 'undefined') {\n unit = element.value[0];\n break;\n }\n }\n // default rescale type for CT\n if (typeof unit === 'undefined') {\n const element = elements['00080060'];\n if (typeof element !== 'undefined') {\n const modality = element.value[0];\n if (modality === 'CT') {\n unit = 'HU';\n }\n }\n }\n return unit;\n}\n\n/**\n * Check the dimension organization from a dicom element.\n *\n * @param {DataElements} dataElements The root dicom element.\n * @returns {object} The dimension organizations and indices.\n */\nexport function getDimensionOrganization(dataElements) {\n // Dimension Organization Sequence (required)\n const orgSq = dataElements['00209221'];\n if (typeof orgSq === 'undefined' || orgSq.value.length !== 1) {\n throw new Error('Unsupported dimension organization sequence length');\n }\n // Dimension Organization UID\n const orgUID = orgSq.value[0]['00209164'].value[0];\n\n // Dimension Index Sequence (conditionally required)\n const indices = [];\n const indexSqElem = dataElements['00209222'];\n if (typeof indexSqElem !== 'undefined') {\n const indexSq = indexSqElem.value;\n // expecting 2D index\n if (indexSq.length !== 2) {\n throw new Error('Unsupported dimension index sequence length');\n }\n let indexPointer;\n for (let i = 0; i < indexSq.length; ++i) {\n // Dimension Organization UID (required)\n const indexOrg = indexSq[i]['00209164'].value[0];\n if (indexOrg !== orgUID) {\n throw new Error(\n 'Dimension Index Sequence contains a unknown Dimension Organization');\n }\n // Dimension Index Pointer (required)\n indexPointer = indexSq[i]['00209165'].value[0];\n\n const index = {\n DimensionOrganizationUID: indexOrg,\n DimensionIndexPointer: indexPointer\n };\n // Dimension Description Label (optional)\n if (typeof indexSq[i]['00209421'] !== 'undefined') {\n index.DimensionDescriptionLabel = indexSq[i]['00209421'].value[0];\n }\n // store\n indices.push(index);\n }\n // expecting Image Position at last position\n if (indexPointer !== '(0020,0032)') {\n throw new Error('Unsupported non image position as last index');\n }\n }\n\n return {\n organizations: {\n value: [\n {\n DimensionOrganizationUID: orgUID\n }\n ]\n },\n indices: {\n value: indices\n }\n };\n}\n\n/**\n * Get a spacing object from a dicom measure element.\n *\n * @param {DataElements} dataElements The dicom element.\n * @returns {Spacing} A spacing object.\n */\nexport function getSpacingFromMeasure(dataElements) {\n // Pixel Spacing\n if (typeof dataElements['00280030'] === 'undefined') {\n return null;\n }\n const pixelSpacing = dataElements['00280030'];\n // spacing order: [row, column]\n const spacingValues = [\n parseFloat(pixelSpacing.value[1]),\n parseFloat(pixelSpacing.value[0]),\n ];\n // Spacing Between Slices\n if (typeof dataElements['00180088'] !== 'undefined') {\n spacingValues.push(parseFloat(dataElements['00180088'].value[0]));\n }\n return new Spacing(spacingValues);\n}\n\n/**\n * Get an orientation matrix from a dicom orientation element.\n *\n * @param {DataElements} dataElements The dicom element.\n * @returns {Matrix33|undefined} The orientation matrix.\n */\nexport function getOrientationMatrix(dataElements) {\n const imageOrientationPatient = dataElements['00200037'];\n let orientationMatrix;\n // slice orientation (cosines are matrices' columns)\n // http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.7.6.2.html#sect_C.7.6.2.1.1\n if (typeof imageOrientationPatient !== 'undefined') {\n orientationMatrix =\n getOrientationFromCosines(\n imageOrientationPatient.value.map((item) => parseFloat(item))\n );\n }\n return orientationMatrix;\n}\n\n/**\n * Get a dicom item from a measure sequence.\n *\n * @param {Spacing} spacing The spacing object.\n * @returns {object} The dicom item.\n */\nexport function getDicomMeasureItem(spacing) {\n return {\n SpacingBetweenSlices: spacing.get(2),\n PixelSpacing: [spacing.get(1), spacing.get(0)]\n };\n}\n\n/**\n * Get a dicom element from a plane orientation sequence.\n *\n * @param {Matrix33} orientation The image orientation.\n * @returns {object} The dicom element.\n */\nexport function getDicomPlaneOrientationItem(orientation) {\n return {\n ImageOrientationPatient: [\n orientation.get(0, 0),\n orientation.get(1, 0),\n orientation.get(2, 0),\n orientation.get(0, 1),\n orientation.get(1, 1),\n orientation.get(2, 1)\n ]\n };\n}\n\n/**\n * Check an input tag.\n *\n * @param {object} element The element to check.\n * @param {string} name The element name.\n * @param {Array} [values] The expected values.\n * @returns {string} A warning if the element is not as expected.\n */\nfunction checkTag(element, name, values) {\n let warning = '';\n if (typeof element === 'undefined') {\n warning += ' ' + name + ' is undefined,';\n } else if (element.value.length === 0) {\n warning += ' ' + name + ' is empty,';\n } else {\n if (typeof values !== 'undefined') {\n for (let i = 0; i < values.length; ++i) {\n if (!element.value.includes(values[i])) {\n warning += ' ' + name + ' does not contain ' + values[i] +\n ' (value: ' + element.value + '),';\n }\n }\n }\n }\n return warning;\n}\n\n/**\n * Get the decayed dose (Bq).\n *\n * @param {object} elements The DICOM elements to check.\n * @returns {object} The value and a warning if\n * the elements are not as expected.\n */\nfunction getDecayedDose(elements) {\n let warning = '';\n let warn;\n\n // SeriesDate (type1)\n const seriesDateEl = elements['00080021'];\n const seriesDateObj = getDate(seriesDateEl);\n\n let totalDose;\n let halfLife;\n let radioStart;\n\n const radioInfoSqStr = 'RadiopharmaceuticalInformationSequence (00540016)';\n const radioInfoSq = elements['00540016'];\n warning += checkTag(radioInfoSq, radioInfoSqStr);\n if (typeof radioInfoSq !== 'undefined') {\n if (radioInfoSq.value.length !== 1) {\n logger.warn(\n 'Found more than 1 istopes in RadiopharmaceuticalInformation Sequence.'\n );\n }\n\n // RadionuclideTotalDose (type3, Bq)\n const totalDoseStr = 'RadionuclideTotalDose (00181074)';\n const totalDoseEl = radioInfoSq.value[0]['00181074'];\n warn = checkTag(totalDoseEl, totalDoseStr);\n if (warn.length === 0) {\n totalDose = totalDoseEl.value[0];\n } else {\n warning += warn;\n }\n\n // RadionuclideHalfLife (type3, seconds)\n const halfLifeStr = 'RadionuclideHalfLife (00181075)';\n const halfLifeEl = radioInfoSq.value[0]['00181075'];\n warn = checkTag(halfLifeEl, halfLifeStr);\n if (warn.length === 0) {\n halfLife = parseFloat(halfLifeEl.value[0]);\n } else {\n warning += warn;\n }\n\n // RadiopharmaceuticalStartDateTime (type3)\n const radioStartDateTimeEl = radioInfoSq.value[0]['00181078'];\n let radioStartDateObj;\n let radioStartTimeObj;\n if (typeof radioStartDateTimeEl === 'undefined') {\n // use seriesDate as radioStartDate\n radioStartDateObj = seriesDateObj;\n // try RadiopharmaceuticalStartTime (type3)\n const radioStartTimeEl = radioInfoSq.value[0]['00181072'];\n radioStartTimeObj = getTime(radioStartTimeEl);\n } else {\n const radioStartDateTime = getDateTime(radioStartDateTimeEl);\n radioStartDateObj = radioStartDateTime.date;\n radioStartTimeObj = radioStartDateTime.time;\n }\n if (typeof radioStartTimeObj === 'undefined') {\n radioStartTimeObj = {\n hours: 0, minutes: 0, seconds: 0, milliseconds: 0\n };\n }\n radioStart = new Date(\n radioStartDateObj.year,\n radioStartDateObj.monthIndex,\n radioStartDateObj.day,\n radioStartTimeObj.hours,\n radioStartTimeObj.minutes,\n radioStartTimeObj.seconds,\n radioStartTimeObj.milliseconds\n );\n }\n\n // SeriesTime (type1)\n const seriesTimeEl = elements['00080031'];\n const seriesTimeObj = getTime(seriesTimeEl);\n // Series date/time\n let scanStart = new Date(\n seriesDateObj.year,\n seriesDateObj.monthIndex,\n seriesDateObj.day,\n seriesTimeObj.hours,\n seriesTimeObj.minutes,\n seriesTimeObj.seconds,\n seriesTimeObj.milliseconds\n );\n\n // scanStart Date check\n // AcquisitionDate (type3)\n const acqDateEl = elements['00080022'];\n // AcquisitionTime (type3)\n const acqTimeEl = elements['00080032'];\n if (typeof acqDateEl !== 'undefined' &&\n typeof acqTimeEl !== 'undefined') {\n const acqDateObj = getDate(acqDateEl);\n const acqTimeObj = getTime(acqTimeEl);\n const acqDate = new Date(\n acqDateObj.year,\n acqDateObj.monthIndex,\n acqDateObj.day,\n acqTimeObj.hours,\n acqTimeObj.minutes,\n acqTimeObj.seconds,\n acqTimeObj.milliseconds\n );\n\n if (scanStart > acqDate) {\n const diff = scanStart.getTime() - acqDate.getTime();\n const warn = 'Series date/time is after Aquisition date/time (diff=' +\n diff.toString() + 'ms) ';\n logger.debug(warn);\n\n // back compute from center (average count rate) of time window\n // for bed position (frame) in series (reliable in all cases)\n\n let frameRefTime = 0;\n const frameRefTimeElStr = 'FrameReferenceTime (00541300)';\n const frameRefTimeEl = elements['00541300'];\n warning += checkTag(frameRefTimeEl, frameRefTimeElStr);\n if (typeof frameRefTimeEl !== 'undefined') {\n frameRefTime = frameRefTimeEl.value[0];\n }\n let actualFrameDuration = 0;\n const actualFrameDurationElStr = 'ActualFrameDuration (0018,1242)';\n const actualFrameDurationEl = elements['00181242'];\n warning += checkTag(actualFrameDurationEl, actualFrameDurationElStr);\n if (typeof actualFrameDurationEl !== 'undefined') {\n actualFrameDuration = actualFrameDurationEl.value[0];\n }\n if (frameRefTime > 0 && actualFrameDuration > 0) {\n // convert to seconds\n actualFrameDuration = actualFrameDuration / 1000;\n frameRefTime = frameRefTime / 1000;\n const decayConstant = Math.log(2) / halfLife;\n const decayDuringFrame = decayConstant * actualFrameDuration;\n const averageCountRateTimeWithinFrame =\n 1 /\n decayConstant *\n Math.log(decayDuringFrame / (1 - Math.exp(-decayDuringFrame)));\n const offsetSeconds = averageCountRateTimeWithinFrame - frameRefTime;\n scanStart = new Date(\n acqDateObj.year,\n acqDateObj.monthIndex,\n acqDateObj.day,\n acqTimeObj.hours,\n acqTimeObj.minutes,\n acqTimeObj.seconds + offsetSeconds,\n acqTimeObj.milliseconds\n );\n }\n }\n }\n\n // decayed dose (Bq)\n let decayedDose;\n if (typeof scanStart !== 'undefined' &&\n typeof radioStart !== 'undefined' &&\n typeof totalDose !== 'undefined' &&\n typeof halfLife !== 'undefined') {\n // decay time (s) (Date diff is in milliseconds)\n const decayTime = (scanStart.getTime() - radioStart.getTime()) / 1000;\n const decay = Math.pow(2, (-decayTime / halfLife));\n decayedDose = totalDose * decay;\n }\n\n return {\n value: decayedDose,\n warning: warning\n };\n}\n\n/**\n * Get the PET SUV factor.\n *\n * Ref:\n * - {@link https://qibawiki.rsna.org/index.php/Standardized_Uptake_Value_(SUV)#SUV_Calculation},\n * - {@link https://qibawiki.rsna.org/images/6/62/SUV_vendorneutral_pseudocode_happypathonly_20180626_DAC.pdf},\n * - {@link https://qibawiki.rsna.org/images/8/86/SUV_vendorneutral_pseudocode_20180626_DAC.pdf}.\n *\n * @param {object} elements The DICOM elements.\n * @returns {object} The value and a warning if\n * the elements are not as expected.\n */\nexport function getSuvFactor(elements) {\n let warning = '';\n\n // CorrectedImage (type2): must contain ATTN and DECY\n const corrImageTagStr = 'Corrected Image (00280051)';\n const corrImageEl = elements['00280051'];\n warning += checkTag(corrImageEl, corrImageTagStr, ['ATTN', 'DECY']);\n // DecayCorrection (type1): must be START\n const decayCorrTagStr = 'Decay Correction (00541102)';\n const decayCorrEl = elements['00541102'];\n warning += checkTag(decayCorrEl, decayCorrTagStr, ['START']);\n // Units (type1): must be BQML\n const unitTagStr = 'Units (00541001)';\n const unitEl = elements['00541001'];\n warning += checkTag(unitEl, unitTagStr, ['BQML']);\n\n // PatientWeight (type3, kg)\n let patWeight;\n const patientWeightStr = ' PatientWeight (00101030)';\n const patWeightEl = elements['00101030'];\n const warn = checkTag(patWeightEl, patientWeightStr);\n if (warn.length === 0) {\n patWeight = patWeightEl.value[0];\n } else {\n warning += warn;\n }\n\n // Decayed dose (Bq)\n const decayedDose = getDecayedDose(elements);\n warning += decayedDose.warning;\n\n const result = {};\n if (warning.length !== 0) {\n result.warning = 'Cannot calculate PET SUV:' + warning;\n } else {\n // SUV factor (grams/Bq)\n result.value = (patWeight * 1000) / decayedDose.value;\n }\n\n return result;\n}\n\n/**\n * Get the file list from a DICOMDIR.\n *\n * @param {object} data The buffer data of the DICOMDIR.\n * @returns {Array|undefined} The file list as an array ordered by\n * STUDY > SERIES > IMAGES.\n */\nexport function getFileListFromDicomDir(data) {\n // parse file\n const parser = new DicomParser();\n parser.parse(data);\n const elements = parser.getDicomElements();\n\n // Directory Record Sequence\n if (typeof elements['00041220'] === 'undefined' ||\n typeof elements['00041220'].value === 'undefined') {\n logger.warn('No Directory Record Sequence found in DICOMDIR.');\n return undefined;\n }\n const dirSeq = elements['00041220'].value;\n\n if (dirSeq.length === 0) {\n logger.warn('The Directory Record Sequence of the DICOMDIR is empty.');\n return undefined;\n }\n\n const records = [];\n let series = null;\n let study = null;\n for (let i = 0; i < dirSeq.length; ++i) {\n // Directory Record Type\n if (typeof dirSeq[i]['00041430'] === 'undefined' ||\n typeof dirSeq[i]['00041430'].value === 'undefined') {\n continue;\n }\n const recType = dirSeq[i]['00041430'].value[0];\n\n // supposed to come in order...\n if (recType === 'STUDY') {\n study = [];\n records.push(study);\n } else if (recType === 'SERIES') {\n series = [];\n study.push(series);\n } else if (recType === 'IMAGE') {\n // Referenced File ID\n if (typeof dirSeq[i]['00041500'] === 'undefined' ||\n typeof dirSeq[i]['00041500'].value === 'undefined') {\n continue;\n }\n const refFileIds = dirSeq[i]['00041500'].value;\n // join ids\n series.push(refFileIds.join('/'));\n }\n }\n return records;\n}\n\n/**\n * Methods used to extract values from DICOM elements.\n *\n * Implemented as class and method to allow for override via its prototype.\n */\nexport class TagValueExtractor {\n /**\n * Get the time.\n *\n * @param {Object} _elements The DICOM elements.\n * @returns {number|undefined} The time value if available.\n */\n getTime(_elements) {\n // default returns undefined\n return undefined;\n }\n}\n","import {Size} from './size';\nimport {Geometry} from './geometry';\nimport {RescaleSlopeAndIntercept} from './rsi';\nimport {WindowLevel} from './windowLevel';\nimport {Image} from './image';\nimport {luts} from './luts';\nimport {\n isJpeg2000TransferSyntax,\n isJpegBaselineTransferSyntax,\n isJpegLosslessTransferSyntax\n} from '../dicom/dicomParser';\nimport {\n getImage2DSize,\n getPixelSpacing,\n getPixelUnit,\n TagValueExtractor,\n getSuvFactor,\n getOrientationMatrix\n} from '../dicom/dicomElementsWrapper';\nimport {Point3D} from '../math/point';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * @typedef {Object} DataElements\n */\n\n/**\n * {@link Image} factory.\n */\nexport class ImageFactory {\n\n /**\n * Possible warning created by checkElements.\n *\n * @type {string|undefined}\n */\n #warning;\n\n /**\n * The PET SUV factor.\n *\n * @type {number|undefined}\n */\n #suvFactor;\n\n /**\n * Get a warning string if elements are not as expected.\n * Created by checkElements.\n *\n * @returns {string|undefined} The warning.\n */\n getWarning() {\n return this.#warning;\n }\n\n /**\n * Check dicom elements. Throws an error if not suitable.\n *\n * @param {DataElements} dataElements The DICOM data elements.\n * @returns {string|undefined} A possible warning.\n */\n checkElements(dataElements) {\n // reset\n this.#warning = undefined;\n // will throw if columns or rows is not defined\n getImage2DSize(dataElements);\n // check PET SUV\n let modality;\n const element = dataElements['00080060'];\n if (typeof element !== 'undefined') {\n modality = element.value[0];\n if (modality === 'PT') {\n const suvFactor = getSuvFactor(dataElements);\n this.#suvFactor = suvFactor.value;\n this.#warning = suvFactor.warning;\n }\n }\n\n return this.#warning;\n }\n\n /**\n * Get an {@link Image} object from the read DICOM file.\n *\n * @param {DataElements} dataElements The DICOM tags.\n * @param {Uint8Array | Int8Array |\n * Uint16Array | Int16Array |\n * Uint32Array | Int32Array} pixelBuffer The pixel buffer.\n * @param {number} numberOfFiles The input number of files.\n * @returns {Image} A new Image.\n */\n create(dataElements, pixelBuffer, numberOfFiles) {\n const size2D = getImage2DSize(dataElements);\n const sizeValues = [size2D[0], size2D[1], 1];\n\n // NumberOfFrames\n const numberOfFramesEl = dataElements['00280008'];\n if (typeof numberOfFramesEl !== 'undefined') {\n const number = parseInt(numberOfFramesEl.value[0], 10);\n if (number > 1) {\n sizeValues.push(number);\n }\n }\n\n // image size\n const size = new Size(sizeValues);\n\n // image spacing\n const spacing = getPixelSpacing(dataElements);\n\n // TransferSyntaxUID\n const syntax = dataElements['00020010'].value[0];\n const jpeg2000 = isJpeg2000TransferSyntax(syntax);\n const jpegBase = isJpegBaselineTransferSyntax(syntax);\n const jpegLoss = isJpegLosslessTransferSyntax(syntax);\n\n // ImagePositionPatient\n const imagePositionPatient = dataElements['00200032'];\n // slice position\n let slicePosition = new Array(0, 0, 0);\n if (typeof imagePositionPatient !== 'undefined') {\n slicePosition = [\n parseFloat(imagePositionPatient.value[0]),\n parseFloat(imagePositionPatient.value[1]),\n parseFloat(imagePositionPatient.value[2])\n ];\n }\n\n // Image orientation patient\n const orientationMatrix = getOrientationMatrix(dataElements);\n\n // geometry\n const origin = new Point3D(\n slicePosition[0], slicePosition[1], slicePosition[2]);\n const extractor = new TagValueExtractor();\n const time = extractor.getTime(dataElements);\n const geometry = new Geometry(\n origin, size, spacing, orientationMatrix, time);\n\n // SOP Instance UID\n let sopInstanceUid;\n const siu = dataElements['00080018'];\n if (typeof siu !== 'undefined') {\n sopInstanceUid = siu.value[0];\n }\n\n // Sample per pixels\n let samplesPerPixel = 1;\n const spp = dataElements['00280002'];\n if (typeof spp !== 'undefined') {\n samplesPerPixel = spp.value[0];\n }\n\n // check buffer size\n const bufferSize = size.getTotalSize() * samplesPerPixel;\n if (bufferSize !== pixelBuffer.length) {\n logger.warn('Badly sized pixel buffer: ' +\n pixelBuffer.length + ' != ' + bufferSize);\n if (bufferSize < pixelBuffer.length) {\n pixelBuffer = pixelBuffer.slice(0, size.getTotalSize());\n } else {\n throw new Error('Underestimated buffer size, can\\'t fix it...');\n }\n }\n\n // image\n const image = new Image(geometry, pixelBuffer, [sopInstanceUid]);\n // PhotometricInterpretation\n const photometricInterpretation = dataElements['00280004'];\n if (typeof photometricInterpretation !== 'undefined') {\n let photo = photometricInterpretation.value[0].toUpperCase();\n // jpeg decoders output RGB data\n if ((jpeg2000 || jpegBase || jpegLoss) &&\n (photo !== 'MONOCHROME1' && photo !== 'MONOCHROME2')) {\n photo = 'RGB';\n }\n // check samples per pixels\n if (photo === 'RGB' && samplesPerPixel === 1) {\n photo = 'PALETTE COLOR';\n }\n image.setPhotometricInterpretation(photo);\n }\n // PlanarConfiguration\n const planarConfiguration = dataElements['00280006'];\n if (typeof planarConfiguration !== 'undefined') {\n image.setPlanarConfiguration(planarConfiguration.value[0]);\n }\n\n // rescale slope and intercept\n let slope = 1;\n // RescaleSlope\n const rescaleSlope = dataElements['00281053'];\n if (typeof rescaleSlope !== 'undefined') {\n const value = parseFloat(rescaleSlope.value[0]);\n if (!isNaN(value)) {\n slope = value;\n }\n }\n let intercept = 0;\n // RescaleIntercept\n const rescaleIntercept = dataElements['00281052'];\n if (typeof rescaleIntercept !== 'undefined') {\n const value = parseFloat(rescaleIntercept.value[0]);\n if (!isNaN(value)) {\n intercept = value;\n }\n }\n\n // meta information\n const meta = {\n numberOfFiles: numberOfFiles\n };\n\n // Modality\n const modality = dataElements['00080060'];\n if (typeof modality !== 'undefined') {\n meta.Modality = modality.value[0];\n }\n\n // PET SUV\n let isPetWithSuv = false;\n let intensityFactor = 1;\n if (typeof this.#suvFactor !== 'undefined') {\n isPetWithSuv = true;\n intensityFactor = this.#suvFactor;\n logger.info('Applying PET SUV calibration: ' + intensityFactor);\n slope *= intensityFactor;\n intercept *= intensityFactor;\n }\n const rsi = new RescaleSlopeAndIntercept(slope, intercept);\n image.setRescaleSlopeAndIntercept(rsi);\n\n const safeGet = function (key) {\n let res;\n const element = dataElements[key];\n if (typeof element !== 'undefined') {\n res = element.value[0];\n }\n return res;\n };\n\n // defaults\n meta.TransferSyntaxUID = safeGet('00020010');\n meta.MediaStorageSOPClassUID = safeGet('00020002');\n meta.SOPClassUID = safeGet('00080016');\n meta.Modality = safeGet('00080060');\n meta.ImageType = safeGet('00080008');\n meta.SamplesPerPixel = safeGet('00280002');\n meta.PhotometricInterpretation = safeGet('00280004');\n meta.PixelRepresentation = safeGet('00280103');\n meta.BitsAllocated = safeGet('00280100');\n meta.BitsStored = safeGet('00280101');\n meta.HighBit = safeGet('00280102');\n\n // Study\n meta.StudyDate = safeGet('00080020');\n meta.StudyTime = safeGet('00080030');\n meta.StudyInstanceUID = safeGet('0020000D');\n meta.StudyID = safeGet('00200010');\n // Series\n meta.SeriesInstanceUID = safeGet('0020000E');\n meta.SeriesNumber = safeGet('00200011');\n // ReferringPhysicianName\n meta.ReferringPhysicianName = safeGet('00080090');\n // patient info\n meta.PatientName = safeGet('00100010');\n meta.PatientID = safeGet('00100020');\n meta.PatientBirthDate = safeGet('00100030');\n meta.PatientSex = safeGet('00100040');\n // General Equipment Module\n meta.Manufacturer = safeGet('00080070');\n meta.ManufacturerModelName = safeGet('00081090');\n meta.DeviceSerialNumber = safeGet('00181000');\n meta.SoftwareVersions = safeGet('00181020');\n\n meta.ImageOrientationPatient = safeGet('00200037');\n meta.FrameOfReferenceUID = safeGet('00200052');\n\n // PixelRepresentation -> is signed\n meta.IsSigned = meta.PixelRepresentation === 1;\n // local pixel unit\n if (isPetWithSuv) {\n meta.pixelUnit = 'SUV';\n } else {\n const pixelUnit = getPixelUnit(dataElements);\n if (typeof pixelUnit !== 'undefined') {\n meta.pixelUnit = pixelUnit;\n }\n }\n // window level presets\n const windowPresets = {};\n const windowCenter = dataElements['00281050'];\n const windowWidth = dataElements['00281051'];\n const windowCWExplanation = dataElements['00281055'];\n if (typeof windowCenter !== 'undefined' &&\n typeof windowWidth !== 'undefined') {\n let name;\n for (let j = 0; j < windowCenter.value.length; ++j) {\n const center = parseFloat(windowCenter.value[j]);\n let width = parseFloat(windowWidth.value[j]);\n if (center && width && width !== 0) {\n name = '';\n if (typeof windowCWExplanation !== 'undefined') {\n name = windowCWExplanation.value[j];\n }\n if (name === '') {\n name = 'Default' + j;\n }\n width *= intensityFactor;\n if (width < 1) {\n width = 1;\n }\n windowPresets[name] = {\n wl: [new WindowLevel(\n center * intensityFactor,\n width\n )],\n name: name\n };\n }\n if (width === 0) {\n logger.warn('Zero window width found in DICOM.');\n }\n }\n }\n meta.windowPresets = windowPresets;\n\n // PALETTE COLOR luts\n if (image.getPhotometricInterpretation() === 'PALETTE COLOR') {\n // Red Palette Color Lookup Table Data\n const redLutElement = dataElements['00281201'];\n // Green Palette Color Lookup Table Data\n const greenLutElement = dataElements['00281202'];\n // Blue Palette Color Lookup Table Data\n const blueLutElement = dataElements['00281203'];\n let redLut;\n let greenLut;\n let blueLut;\n // check red palette descriptor (should all be equal)\n // Red Palette Color Lookup Table Descriptor\n // 0: number of entries in the lookup table\n // 1: first input value mapped\n // 2: number of bits for each entry in the Lookup Table Data (8 or 16)\n const descriptor = dataElements['00281101'];\n if (typeof descriptor !== 'undefined' &&\n descriptor.value.length === 3) {\n if (descriptor.value[2] === 16) {\n let doScale = false;\n // (C.7.6.3.1.5 Palette Color Lookup Table Descriptor)\n // Some implementations have encoded 8 bit entries with 16 bits\n // allocated, padding the high bits;\n let descSize = descriptor.value[0];\n // (C.7.6.3.1.5 Palette Color Lookup Table Descriptor)\n // The first Palette Color Lookup Table Descriptor value is the\n // number of entries in the lookup table. When the number of table\n // entries is equal to 216 then this value shall be 0.\n if (descSize === 0) {\n descSize = 65536;\n }\n // red palette VL\n // TODO vl is undefined, find info elsewhere...\n const vlSize = redLutElement.vl;\n // check double size\n if (vlSize !== 2 * descSize) {\n doScale = true;\n logger.info('16bits lut but size is not double. desc: ' +\n descSize + ' vl: ' + vlSize);\n }\n // (C.7.6.3.1.6 Palette Color Lookup Table Data)\n // Palette color values must always be scaled across the full\n // range of available intensities\n const bitsAllocated = parseInt(\n dataElements['00280100'].value[0], 10);\n if (bitsAllocated === 8) {\n doScale = true;\n logger.info(\n 'Scaling 16bits color lut since bits allocated is 8.');\n }\n\n if (doScale) {\n const scaleTo8 = function (value) {\n return value >> 8;\n };\n\n redLut = redLutElement.value.map(scaleTo8);\n greenLut = greenLutElement.value.map(scaleTo8);\n blueLut = blueLutElement.value.map(scaleTo8);\n }\n } else if (descriptor.value[2] === 8) {\n // lut with vr=OW was read as Uint16, convert it to Uint8\n logger.info(\n 'Scaling 16bits color lut since the lut descriptor is 8.');\n let clone = redLutElement.value.slice(0);\n // @ts-expect-error\n redLut = Array.from(new Uint8Array(clone.buffer));\n clone = greenLutElement.value.slice(0);\n // @ts-expect-error\n greenLut = Array.from(new Uint8Array(clone.buffer));\n clone = blueLutElement.value.slice(0);\n // @ts-expect-error\n blueLut = Array.from(new Uint8Array(clone.buffer));\n }\n }\n // set the palette\n luts['palette'] = {\n red: redLut,\n green: greenLut,\n blue: blueLut\n };\n }\n\n // RecommendedDisplayFrameRate\n const recommendedDisplayFrameRate = dataElements['00082144'];\n if (typeof recommendedDisplayFrameRate !== 'undefined') {\n meta.RecommendedDisplayFrameRate = parseInt(\n recommendedDisplayFrameRate.value[0], 10);\n }\n\n // store the meta data\n image.setMeta(meta);\n\n return image;\n }\n\n}","/**\n * Data writer.\n */\nexport class DataWriter {\n\n /**\n * Is the endianness Little Endian.\n *\n * @type {boolean}\n */\n #isLittleEndian = true;\n\n /**\n * The main data view.\n *\n * @type {DataView}\n */\n #view;\n\n /**\n * @param {ArrayBuffer} buffer The input array buffer.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is\n * little or big endian.\n */\n constructor(buffer, isLittleEndian) {\n // Set endian flag if not defined.\n if (typeof isLittleEndian !== 'undefined') {\n this.#isLittleEndian = isLittleEndian;\n }\n this.#view = new DataView(buffer);\n }\n\n /**\n * Write Uint8 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint8(byteOffset, value) {\n this.#view.setUint8(byteOffset, value);\n return byteOffset + Uint8Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int8 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt8(byteOffset, value) {\n this.#view.setInt8(byteOffset, value);\n return byteOffset + Int8Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Uint16 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint16(byteOffset, value) {\n this.#view.setUint16(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Uint16Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int16 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt16(byteOffset, value) {\n this.#view.setInt16(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Int16Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Uint32 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint32(byteOffset, value) {\n this.#view.setUint32(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Uint32Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Uint64 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {bigint} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint64(byteOffset, value) {\n this.#view.setBigUint64(byteOffset, value, this.#isLittleEndian);\n return byteOffset + BigUint64Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int32 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt32(byteOffset, value) {\n this.#view.setInt32(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Int32Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int64 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {bigint} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt64(byteOffset, value) {\n this.#view.setBigInt64(byteOffset, value, this.#isLittleEndian);\n return byteOffset + BigInt64Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Float32 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeFloat32(byteOffset, value) {\n this.#view.setFloat32(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Float32Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Float64 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeFloat64(byteOffset, value) {\n this.#view.setFloat64(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Float64Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write string data of length 4 as hexadecimal (no '0x' prefix).\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {string} str The hexadecimal string to write ('####').\n * @returns {number} The new offset position.\n */\n writeHex(byteOffset, str) {\n // remove first two chars and parse\n const value = parseInt(str, 16);\n this.#view.setUint16(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Uint16Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write a boolean array as binary.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeBinaryArray(byteOffset, array) {\n if (array.length % 8 !== 0) {\n throw new Error('Cannot write boolean array as binary.');\n }\n let byte = null;\n let val = null;\n for (let i = 0, len = array.length; i < len; i += 8) {\n byte = 0;\n for (let j = 0; j < 8; ++j) {\n val = array[i + j] === 0 ? 0 : 1;\n byte += val << j;\n }\n byteOffset = this.writeUint8(byteOffset, byte);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint8 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array|Uint8Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint8Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint8(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int8 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt8Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt8(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint16 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint16Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint16(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int16 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt16Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt16(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint32 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint32Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint32(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint64 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint64Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint64(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int32 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt32Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt32(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int64 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt64Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt64(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Float32 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeFloat32Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeFloat32(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Float64 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeFloat64Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeFloat64(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n} // class DataWriter\n","import {\n is32bitVLVR,\n isCharSetStringVR,\n vrTypes\n} from './dictionary';\nimport {\n Tag,\n getTagFromDictionary,\n getTagFromKey,\n getItemTag,\n getItemDelimitationItemTag,\n getSequenceDelimitationItemTag,\n getFileMetaInformationGroupLengthTag,\n isPixelDataTag,\n isItemTag,\n isItemDelimitationItemTag,\n tagCompareFunction\n} from './dicomTag';\nimport {\n getDwvVersion,\n isImplicitTransferSyntax,\n isBigEndianTransferSyntax,\n getDataElementPrefixByteSize\n} from './dicomParser';\nimport {DataElement} from './dataElement';\nimport {DataWriter} from './dataWriter';\nimport {DataReader} from './dataReader';\nimport {logger} from '../utils/logger';\n\n/**\n * Get the dwv UID prefix.\n * Issued by Medical Connections Ltd (www.medicalconnections.co.uk)\n * on 25/10/2017.\n *\n * @returns {string} The dwv UID prefix.\n */\nfunction getDwvUIDPrefix() {\n return '1.2.826.0.1.3680043.9.7278.1';\n}\n\n// local generated uid counter\nlet _uidCount = 0;\n\n/**\n * Writer rule.\n */\nexport class WriterRule {\n /**\n * Rule action: `copy`, `remove`, `clear` or `replace`.\n *\n * @type {string}\n */\n action;\n /**\n * Optional value to use for replace action.\n *\n * @type {any|undefined}\n */\n value;\n\n /**\n * @param {string} action The rule action.\n */\n constructor(action) {\n this.action = action;\n }\n}\n\n/**\n * Possible writer actions.\n *\n * @type {Object}\n */\nconst writerActions = {\n copy: function (item) {\n return item;\n },\n remove: function () {\n return null;\n },\n clear: function (item) {\n item.value = [];\n return item;\n },\n replace: function (item, value) {\n item.value = [value];\n return item;\n }\n};\n\n/**\n * Get simple (non official) DICOM anonymisation rules.\n *\n * @returns {Object} The rules.\n */\nexport function getDefaultAnonymisationRules() {\n return {\n default: {action: 'copy', value: null},\n PatientName: {action: 'replace', value: 'Anonymized'}, // tag\n 'Meta Element': {action: 'copy', value: null}, // group '0002'\n Acquisition: {action: 'copy', value: null}, // group '0018'\n 'Image Presentation': {action: 'copy', value: null}, // group '0028'\n Procedure: {action: 'copy', value: null}, // group '0040'\n 'Pixel Data': {action: 'copy', value: null} // group '7fe0'\n };\n}\n\n/**\n * Get a UID for a DICOM tag.\n *\n * Note: Use {@link https://github.com/uuidjs/uuid}?\n *\n * Ref:\n * - {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_9.html},\n * - {@link http://dicomiseasy.blogspot.com/2011/12/chapter-4-dicom-objects-in-chapter-3.html},\n * - {@link https://stackoverflow.com/questions/46304306/how-to-generate-unique-dicom-uid}.\n *\n * @param {string} tagName The input tag.\n * @returns {string} The corresponding UID.\n */\nexport function getUID(tagName) {\n const prefix = getDwvUIDPrefix() + '.';\n let uid = '';\n if (tagName === 'ImplementationClassUID') {\n uid = prefix + getDwvVersion();\n } else {\n // date (only numbers), do not keep milliseconds\n const date = (new Date()).toISOString().replace(/\\D/g, '');\n const datePart = '.' + date.substring(0, 14);\n // count\n _uidCount += 1;\n const countPart = '.' + _uidCount;\n\n // uid = prefix . tag . date . count\n uid = prefix;\n\n // limit tag part to not exceed 64 length\n const nonTagLength = prefix.length + countPart.length + datePart.length;\n const leni = Math.min(tagName.length, 64 - nonTagLength);\n if (leni > 1) {\n let tagNumber = '';\n for (let i = 0; i < leni; ++i) {\n tagNumber += tagName.charCodeAt(i);\n }\n uid += tagNumber.substring(0, leni);\n }\n\n // finish\n uid += datePart + countPart;\n }\n return uid;\n}\n\n/**\n * Return true if the input number is even.\n *\n * @param {number} number The number to check.\n * @returns {boolean} True is the number is even.\n */\nfunction isEven(number) {\n return number % 2 === 0;\n}\n\n/**\n * Is the input VR a VR that stores data in a typed array.\n * TODO: include ox and xs?\n *\n * @param {string} vr The element VR.\n * @returns {boolean} True if the VR is a typed array one.\n */\nfunction isTypedArrayVr(vr) {\n const vrType = vrTypes[vr];\n return typeof vrType !== 'undefined' &&\n vrType !== 'string';\n}\n\n/**\n * Is the input VR a string VR.\n *\n * @param {string} vr The element VR.\n * @returns {boolean} True if the VR is a string one.\n */\nfunction isStringVr(vr) {\n const vrType = vrTypes[vr];\n return typeof vrType !== 'undefined' &&\n vrType === 'string';\n}\n\n/**\n * Is the input VR a VR that could need padding.\n *\n * See {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_6.2.html}.\n *\n * @param {string} vr The element VR.\n * @returns {boolean} True if the VR needs padding.\n */\nfunction isVrToPad(vr) {\n return isStringVr(vr) || vr === 'OB';\n}\n\n/**\n * Get the VR specific padding value.\n *\n * @param {string} vr The element VR.\n * @returns {string} The value used to pad.\n */\nfunction getVrPad(vr) {\n let pad = '';\n if (isStringVr(vr)) {\n if (vr === 'UI') {\n pad = '\\0';\n } else {\n pad = ' ';\n }\n }\n return pad;\n}\n\n/**\n * Push a value at the end of an input Uint8Array.\n *\n * @param {Array|Uint8Array} arr The input array.\n * @param {Array|Uint8Array} value The value to push.\n * @returns {Uint8Array} The new array.\n */\nfunction uint8ArrayPush(arr, value) {\n const newArr = new Uint8Array(arr.length + 1);\n newArr.set(arr);\n newArr.set(value, arr.length);\n return newArr;\n}\n\n/**\n * Pad an input OB value.\n *\n * @param {Array|Uint8Array} value The input value.\n * @returns {Array|Uint8Array} The padded input.\n */\nfunction padOBValue(value) {\n if (value !== null &&\n typeof value !== 'undefined' &&\n typeof value.length !== 'undefined') {\n // calculate size and pad if needed\n if (value.length !== 0 &&\n typeof value[0].length !== 'undefined') {\n // handle array of array\n let size = 0;\n for (let i = 0; i < value.length; ++i) {\n size += value[i].length;\n }\n if (!isEven(size)) {\n value[value.length - 1] = uint8ArrayPush(\n value[value.length - 1], [0]);\n }\n } else {\n if (!isEven(value.length)) {\n value = uint8ArrayPush(value, [0]);\n }\n }\n } else {\n throw new Error('Cannot pad undefined or null OB value.');\n }\n // uint8ArrayPush may create a new array so we\n // need to return it\n return value;\n}\n\n/**\n * Helper method to flatten an array of typed arrays to 2D typed array.\n *\n * @param {Array} initialArray Array of typed arrays.\n * @returns {object} A typed array containing all values.\n */\nfunction flattenArrayOfTypedArrays(initialArray) {\n const initialArrayLength = initialArray.length;\n const arrayLength = initialArray[0].length;\n // If this is not a array of arrays, just return the initial one:\n if (typeof arrayLength === 'undefined') {\n return initialArray;\n }\n\n const flattenendArrayLength = initialArrayLength * arrayLength;\n\n const flattenedArray = new initialArray[0].constructor(flattenendArrayLength);\n\n for (let i = 0; i < initialArrayLength; i++) {\n const indexFlattenedArray = i * arrayLength;\n flattenedArray.set(initialArray[i], indexFlattenedArray);\n }\n return flattenedArray;\n}\n\n/**\n * Default text encoder.\n */\nclass DefaultTextEncoder {\n /**\n * Encode an input string.\n *\n * @param {string} str The string to encode.\n * @returns {Uint8Array} The encoded string.\n */\n encode(str) {\n const result = new Uint8Array(str.length);\n for (let i = 0, leni = str.length; i < leni; ++i) {\n result[i] = str.charCodeAt(i);\n }\n return result;\n }\n}\n\n/**\n * Small list of used tag keys.\n */\nconst TagKeys = {\n TransferSyntax: '00020010',\n SpecificCharacterSet: '00080005',\n BitsAllocated: '00280100',\n};\n\n/**\n * DICOM writer.\n *\n * @example\n * // add link to html\n * const link = document.createElement(\"a\");\n * link.appendChild(document.createTextNode(\"download\"));\n * const div = document.getElementById(\"dwv\");\n * div.appendChild(link);\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * const parser = new dwv.DicomParser();\n * parser.parse(event.target.response);\n * // create writer\n * const writer = new dwv.DicomWriter();\n * // get buffer using default rules\n * const dicomBuffer = writer.getBuffer(parser.getDicomElements());\n * // create blob\n * const blob = new Blob([dicomBuffer], {type: 'application/dicom'});\n * // add blob to download link\n * link.href = URL.createObjectURL(blob);\n * link.download = \"anonym.dcm\";\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class DicomWriter {\n\n /**\n * Flag to use VR=UN for private sequences, default to false\n * (mainly used in tests).\n *\n * @type {boolean}\n */\n #useUnVrForPrivateSq = false;\n\n /**\n * Flag to activate or not the vr=UN tag check and fix\n * if present in the dictionary. Default to true.\n *\n * @type {boolean}\n */\n #fixUnknownVR = true;\n\n /**\n * Default rules: just copy.\n *\n * @type {Object}\n */\n #defaultRules = {\n default: {action: 'copy', value: null}\n };\n\n /**\n * Writing rules.\n *\n * @type {Object}\n */\n #rules = this.#defaultRules;\n\n /**\n * List of compulsory tags keys.\n *\n * @type {string[]}\n */\n #compulsoryTags = [];\n\n /**\n * Default text encoder.\n *\n * @type {DefaultTextEncoder}\n */\n #defaultTextEncoder = new DefaultTextEncoder();\n\n /**\n * Special text encoder.\n *\n * @type {DefaultTextEncoder|TextEncoder}\n */\n #textEncoder = this.#defaultTextEncoder;\n\n /**\n * Set the use UN VR for private sequence flag.\n *\n * @param {boolean} flag True to use UN VR.\n */\n setUseUnVrForPrivateSq(flag) {\n this.#useUnVrForPrivateSq = flag;\n }\n\n /**\n * Set the vr=UN check and fix flag.\n *\n * @param {boolean} flag True to activate the check and fix.\n */\n setFixUnknownVR(flag) {\n this.#fixUnknownVR = flag;\n }\n\n /**\n * Set the writing rules.\n * List of writer rules indexed by either `default`,\n * tagKey, tagName or groupName.\n * Each DICOM element will be checked to see if a rule is applicable.\n * First checked by tagKey, tagName and then by groupName,\n * if nothing is found the default rule is applied.\n *\n * @param {Object} rules The input rules.\n * @param {boolean} [addMissingTags] If true, explicit tags that\n * have replace rule and a value will be\n * added if missing. Defaults to false.\n */\n setRules(rules, addMissingTags) {\n this.#rules = rules;\n\n // default compulsory list is empty\n this.#compulsoryTags = [];\n\n // use replace rule tags as compulsory tags\n if (addMissingTags) {\n const keys = Object.keys(rules);\n for (const key of keys) {\n const rule = rules[key];\n if (rule.action === 'replace' &&\n typeof rule.value !== 'undefined' &&\n rule.value !== null) {\n // check if key really exists\n let isKey = false;\n if (key.length === 8) {\n const tag = getTagFromKey(key);\n isKey = typeof tag.getNameFromDictionary() !== 'undefined';\n }\n // get tag key, rules can use key or tag name\n let tagKey;\n if (isKey) {\n tagKey = key;\n } else {\n // try tag name\n const tag = getTagFromDictionary(key);\n if (typeof tag !== 'undefined') {\n tagKey = tag.getKey();\n }\n }\n // add to list\n if (typeof tagKey !== 'undefined') {\n this.#compulsoryTags.push(tagKey);\n }\n }\n }\n }\n }\n\n /**\n * Encode string data.\n *\n * @param {string} str The string to encode.\n * @returns {Uint8Array} The encoded string.\n */\n #encodeString(str) {\n return this.#defaultTextEncoder.encode(str);\n }\n\n /**\n * Encode data as a UTF-8.\n *\n * @param {string} str The string to write.\n * @returns {Uint8Array} The encoded string.\n */\n #encodeSpecialString(str) {\n return this.#textEncoder.encode(str);\n }\n\n /**\n * Use a TextEncoder instead of the default text decoder.\n */\n useSpecialTextEncoder() {\n /**\n * The text encoder.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder}.\n *\n * @external TextEncoder\n */\n this.#textEncoder = new TextEncoder();\n }\n\n /**\n * Get the element to write according to the class rules.\n * Priority order: tagName, groupName, default.\n *\n * @param {DataElement} element The element to check.\n * @returns {DataElement|null} The element to write, can be null.\n */\n getElementToWrite(element) {\n // get group and tag string name\n const groupName = element.tag.getGroupName();\n const tagName = element.tag.getNameFromDictionary();\n\n // apply rules:\n let rule;\n if (typeof this.#rules[element.tag.getKey()] !== 'undefined') {\n // 1. tag itself\n rule = this.#rules[element.tag.getKey()];\n } else if (typeof tagName !== 'undefined' &&\n typeof this.#rules[tagName] !== 'undefined') {\n // 2. tag name\n rule = this.#rules[tagName];\n } else if (typeof this.#rules[groupName] !== 'undefined') {\n // 3. group name\n rule = this.#rules[groupName];\n } else {\n // 4. default\n rule = this.#rules['default'];\n }\n // apply action on element and return\n return writerActions[rule.action](element, rule.value);\n }\n\n /**\n * Write a list of items.\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} items The list of items to write.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writeDataElementItems(\n writer, byteOffset, items, isImplicit) {\n let item;\n for (let i = 0; i < items.length; ++i) {\n item = items[i];\n if (item.length === 0) {\n continue;\n }\n // item element (create new to not modify original)\n let undefinedLength = false;\n const itemTag = item.find((subItem) => isItemTag(subItem.tag));\n if (typeof itemTag !== 'undefined' &&\n typeof itemTag.undefinedLength !== 'undefined') {\n undefinedLength = itemTag.undefinedLength;\n }\n const itemElement = new DataElement('NONE');\n itemElement.vl = undefinedLength ? 0xffffffff : itemTag.vl,\n itemElement.tag = getItemTag();\n itemElement.value = [];\n byteOffset = this.#writeDataElement(\n writer, itemElement, byteOffset, isImplicit);\n // write rest\n for (const subItem of item) {\n if (!isItemTag(subItem.tag) &&\n !isItemDelimitationItemTag(subItem.tag)) {\n byteOffset = this.#writeDataElement(\n writer, subItem, byteOffset, isImplicit);\n }\n }\n // item delimitation\n if (undefinedLength) {\n const itemDelimElement = new DataElement('NONE');\n itemDelimElement.vl = 0;\n itemDelimElement.tag = getItemDelimitationItemTag();\n itemDelimElement.value = [];\n byteOffset = this.#writeDataElement(\n writer, itemDelimElement, byteOffset, isImplicit);\n }\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Write data with a specific Value Representation (VR).\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {DataElement} element The element to write.\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} value The array to write.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writeDataElementValue(\n writer, element, byteOffset, value, isImplicit) {\n\n const startOffset = byteOffset;\n\n if (element.vr === 'NONE') {\n // nothing to do!\n } else if (value instanceof Uint8Array) {\n // binary data has been expanded 8 times at read\n if (value.length === 8 * element.vl) {\n byteOffset = writer.writeBinaryArray(byteOffset, value);\n } else {\n byteOffset = writer.writeUint8Array(byteOffset, value);\n }\n } else if (value instanceof Int8Array) {\n byteOffset = writer.writeInt8Array(byteOffset, value);\n } else if (value instanceof Uint16Array) {\n byteOffset = writer.writeUint16Array(byteOffset, value);\n } else if (value instanceof Int16Array) {\n byteOffset = writer.writeInt16Array(byteOffset, value);\n } else if (value instanceof Uint32Array) {\n byteOffset = writer.writeUint32Array(byteOffset, value);\n } else if (value instanceof Int32Array) {\n byteOffset = writer.writeInt32Array(byteOffset, value);\n } else if (value instanceof BigUint64Array) {\n byteOffset = writer.writeUint64Array(byteOffset, value);\n } else if (value instanceof BigInt64Array) {\n byteOffset = writer.writeInt64Array(byteOffset, value);\n } else {\n // switch according to VR if input type is undefined\n const vrType = vrTypes[element.vr];\n if (typeof vrType !== 'undefined') {\n if (vrType === 'Uint8') {\n byteOffset = writer.writeUint8Array(byteOffset, value);\n } else if (vrType === 'Uint16') {\n byteOffset = writer.writeUint16Array(byteOffset, value);\n } else if (vrType === 'Int16') {\n byteOffset = writer.writeInt16Array(byteOffset, value);\n } else if (vrType === 'Uint32') {\n byteOffset = writer.writeUint32Array(byteOffset, value);\n } else if (vrType === 'Int32') {\n byteOffset = writer.writeInt32Array(byteOffset, value);\n } else if (vrType === 'Uint64') {\n byteOffset = writer.writeUint64Array(byteOffset, value);\n } else if (vrType === 'Int64') {\n byteOffset = writer.writeInt64Array(byteOffset, value);\n } else if (vrType === 'Float32') {\n byteOffset = writer.writeFloat32Array(byteOffset, value);\n } else if (vrType === 'Float64') {\n byteOffset = writer.writeFloat64Array(byteOffset, value);\n } else if (vrType === 'string') {\n byteOffset = writer.writeUint8Array(byteOffset, value);\n } else {\n throw new Error('Unknown VR type: ' + vrType);\n }\n } else if (element.vr === 'SQ') {\n byteOffset = this.#writeDataElementItems(\n writer, byteOffset, value, isImplicit);\n } else if (element.vr === 'AT') {\n for (let i = 0; i < value.length; ++i) {\n const hexString = value[i] + '';\n const hexString1 = hexString.substring(1, 5);\n const hexString2 = hexString.substring(6, 10);\n const dec1 = parseInt(hexString1, 16);\n const dec2 = parseInt(hexString2, 16);\n const atValue = [dec1, dec2];\n byteOffset = writer.writeUint16Array(byteOffset, atValue);\n }\n } else if (element.vr === 'xs') {\n // TODO would be better to use pixelRepresentation in if\n if (value instanceof Int16Array) {\n byteOffset = writer.writeInt16Array(byteOffset, value);\n } else {\n byteOffset = writer.writeUint16Array(byteOffset, value);\n }\n } else {\n logger.warn('Unknown VR: ' + element.vr);\n }\n }\n\n if (element.vr !== 'SQ' && element.vr !== 'NONE') {\n const diff = byteOffset - startOffset;\n if (diff !== element.vl) {\n let message = 'Offset difference and VL are not equal: ' +\n diff + ' != ' + element.vl;\n message += ' (';\n if (typeof element.tag !== 'undefined') {\n message += element.tag + ', ';\n }\n message += 'vr:' + element.vr + ')';\n logger.warn(message);\n }\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Write a pixel data element.\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {DataElement} element The element to write.\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} value The array to write.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writePixelDataElementValue(\n writer, element, byteOffset, value, isImplicit) {\n // undefined length flag\n let undefinedLength = false;\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLength = element.undefinedLength;\n }\n // explicit length\n if (!undefinedLength) {\n let finalValue = value[0];\n // flatten multi frame\n if (value.length > 1) {\n finalValue = flattenArrayOfTypedArrays(value);\n }\n // write\n byteOffset = this.#writeDataElementValue(\n writer, element, byteOffset, finalValue, isImplicit);\n } else {\n // pixel data as sequence\n const item = {};\n // first item: basic offset table\n item['FFFEE000'] = {\n tag: getItemTag(),\n vr: 'NONE',\n vl: 0,\n value: []\n };\n // data\n for (let i = 0; i < value.length; ++i) {\n item[i] = {\n tag: getItemTag(),\n vr: element.vr,\n vl: value[i].length,\n value: value[i]\n };\n }\n // write\n byteOffset = this.#writeDataElementItems(\n writer, byteOffset, [item], isImplicit);\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Write a data element.\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {DataElement} element The DICOM data element to write.\n * @param {number} byteOffset The offset to start writing from.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writeDataElement(\n writer, element, byteOffset, isImplicit) {\n const isTagWithVR = element.tag.isWithVR();\n const is32bitVL = (isImplicit || !isTagWithVR)\n ? true : is32bitVLVR(element.vr);\n // group\n byteOffset = writer.writeHex(byteOffset, element.tag.getGroup());\n // element\n byteOffset = writer.writeHex(byteOffset, element.tag.getElement());\n // VR\n let vr = element.vr;\n // use VR=UN for private sequence\n if (this.#useUnVrForPrivateSq &&\n element.tag.isPrivate() &&\n vr === 'SQ') {\n logger.warn('Write element using VR=UN for private sequence.');\n vr = 'UN';\n }\n if (isTagWithVR && !isImplicit) {\n byteOffset = writer.writeUint8Array(byteOffset, this.#encodeString(vr));\n // reserved 2 bytes for 32bit VL\n if (is32bitVL) {\n byteOffset += 2;\n }\n }\n\n let undefinedLengthSequence = false;\n if (element.vr === 'SQ' ||\n isPixelDataTag(element.tag)) {\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLengthSequence = element.undefinedLength;\n }\n }\n let undefinedLengthItem = false;\n if (isItemTag(element.tag)) {\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLengthItem = element.undefinedLength;\n }\n }\n\n // update vl for sequence or item with undefined length\n let vl = element.vl;\n if (undefinedLengthSequence || undefinedLengthItem) {\n vl = 0xffffffff;\n }\n // VL\n if (is32bitVL) {\n byteOffset = writer.writeUint32(byteOffset, vl);\n } else {\n byteOffset = writer.writeUint16(byteOffset, vl);\n }\n\n // value\n let value = element.value;\n // check value\n if (typeof value === 'undefined') {\n value = [];\n }\n // write\n if (isPixelDataTag(element.tag)) {\n byteOffset = this.#writePixelDataElementValue(\n writer, element, byteOffset, value, isImplicit);\n } else {\n byteOffset = this.#writeDataElementValue(\n writer, element, byteOffset, value, isImplicit);\n }\n\n // sequence delimitation item for sequence with undefined length\n if (undefinedLengthSequence) {\n const seqDelimElement = new DataElement('NONE');\n seqDelimElement.vl = 0;\n seqDelimElement.tag = getSequenceDelimitationItemTag();\n seqDelimElement.value = [];\n byteOffset = this.#writeDataElement(\n writer, seqDelimElement, byteOffset, isImplicit);\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Get the ArrayBuffer corresponding to input DICOM elements.\n *\n * @param {Object} dataElements The elements to write.\n * @returns {ArrayBuffer} The elements as a buffer.\n */\n getBuffer(dataElements) {\n // Transfer Syntax\n const syntax = dataElements[TagKeys.TransferSyntax].value[0];\n const isImplicit = isImplicitTransferSyntax(syntax);\n const isBigEndian = isBigEndianTransferSyntax(syntax);\n // Specific CharacterSet\n if (typeof dataElements[TagKeys.SpecificCharacterSet] !== 'undefined') {\n const oldscs = dataElements[TagKeys.SpecificCharacterSet].value[0];\n // force UTF-8 if not default character set\n if (typeof oldscs !== 'undefined' && oldscs !== 'ISO-IR 6') {\n logger.debug('Change charset to UTF, was: ' + oldscs);\n this.useSpecialTextEncoder();\n dataElements[TagKeys.SpecificCharacterSet].value = ['ISO_IR 192'];\n }\n }\n // Bits Allocated (for image data)\n let bitsAllocated;\n if (typeof dataElements[TagKeys.BitsAllocated] !== 'undefined') {\n bitsAllocated = dataElements[TagKeys.BitsAllocated].value[0];\n }\n\n // calculate buffer size and split elements (meta and non meta)\n let totalSize = 128 + 4; // DICM\n let localSize = 0;\n const metaElements = [];\n const rawElements = [];\n let element;\n let groupName;\n let metaLength = 0;\n // FileMetaInformationGroupLength\n const fmiglTag = getFileMetaInformationGroupLengthTag();\n // FileMetaInformationVersion\n const fmivTag = new Tag('0002', '0001');\n // ImplementationClassUID\n const icUIDTag = new Tag('0002', '0012');\n // ImplementationVersionName\n const ivnTag = new Tag('0002', '0013');\n\n // missing tag list: start as a copy of compulsory\n const missingTags = this.#compulsoryTags.slice();\n\n // loop through elements to get the buffer size\n const keys = Object.keys(dataElements);\n for (let i = 0, leni = keys.length; i < leni; ++i) {\n const originalElement = dataElements[keys[i]];\n originalElement.tag = getTagFromKey(keys[i]);\n element = this.getElementToWrite(originalElement);\n if (element !== null &&\n !fmiglTag.equals(element.tag) &&\n !fmivTag.equals(element.tag) &&\n !icUIDTag.equals(element.tag) &&\n !ivnTag.equals(element.tag)) {\n localSize = 0;\n\n // check if compulsory tag, if present remove from missing list\n const index = missingTags.indexOf(element.tag.getKey());\n if (index !== -1) {\n missingTags.splice(index, 1);\n }\n\n // XB7 2020-04-17\n // Check if UN can be converted to correct VR.\n // This check must be done BEFORE calculating totalSize,\n // otherwise there may be extra null bytes at the end of the file\n // (dcmdump may crash because of these bytes)\n if (this.#fixUnknownVR) {\n checkAndFixUnknownVR(element, !isBigEndian);\n }\n\n // update value and vl\n this.#setElementValue(\n element, element.value, isImplicit, bitsAllocated);\n\n // tag group name\n groupName = element.tag.getGroupName();\n\n // prefix\n if (groupName === 'Meta Element') {\n localSize += getDataElementPrefixByteSize(element.vr, false);\n } else {\n localSize += getDataElementPrefixByteSize(\n element.vr, isImplicit);\n }\n\n // value\n localSize += element.vl;\n\n // sort elements\n if (groupName === 'Meta Element') {\n metaElements.push(element);\n metaLength += localSize;\n } else {\n rawElements.push(element);\n }\n\n // add to total size\n totalSize += localSize;\n }\n }\n\n // add compulsory tags to output data if not present\n for (const key of missingTags) {\n const tag = getTagFromKey(key);\n const dataElement = new DataElement(tag.getVrFromDictionary());\n dataElement.tag = tag;\n // rules are indexed by key or tag name\n let value;\n if (typeof this.#rules[key] !== 'undefined') {\n value = this.#rules[key].value;\n } else {\n const name = tag.getNameFromDictionary();\n value = this.#rules[name].value;\n }\n // add element\n let size = getDataElementPrefixByteSize(dataElement.vr, isImplicit);\n size += this.#setElementValue(dataElement, [value], isImplicit);\n rawElements.push(dataElement);\n totalSize += size;\n }\n\n // FileMetaInformationVersion\n const fmiv = getDataElement('FileMetaInformationVersion');\n let fmivSize = getDataElementPrefixByteSize(fmiv.vr, false);\n fmivSize += this.#setElementValue(fmiv, [0, 1], false);\n metaElements.push(fmiv);\n metaLength += fmivSize;\n totalSize += fmivSize;\n // ImplementationClassUID\n const icUID = getDataElement('ImplementationClassUID');\n let icUIDSize = getDataElementPrefixByteSize(icUID.vr, false);\n const icUIDValue =\n getUID('ImplementationClassUID').replace('-beta', '.99');\n icUIDSize += this.#setElementValue(icUID, [icUIDValue], false);\n metaElements.push(icUID);\n metaLength += icUIDSize;\n totalSize += icUIDSize;\n // ImplementationVersionName\n const ivn = getDataElement('ImplementationVersionName');\n let ivnSize = getDataElementPrefixByteSize(ivn.vr, false);\n const dwvVersion = getDwvVersion().replace('-beta', '.99');\n const ivnValue = 'DWV_' + dwvVersion;\n ivnSize += this.#setElementValue(ivn, [ivnValue], false);\n metaElements.push(ivn);\n metaLength += ivnSize;\n totalSize += ivnSize;\n\n // sort elements\n const elemSortFunc = function (a, b) {\n return tagCompareFunction(a.tag, b.tag);\n };\n metaElements.sort(elemSortFunc);\n rawElements.sort(elemSortFunc);\n\n // create the FileMetaInformationGroupLength element\n const fmigl = getDataElement('FileMetaInformationGroupLength');\n let fmiglSize = getDataElementPrefixByteSize(fmigl.vr, false);\n fmiglSize += this.#setElementValue(\n fmigl, new Uint32Array([metaLength]), false);\n totalSize += fmiglSize;\n\n // create buffer\n const buffer = new ArrayBuffer(totalSize);\n const metaWriter = new DataWriter(buffer);\n const dataWriter = new DataWriter(buffer, !isBigEndian);\n\n let offset = 128;\n // DICM\n offset = metaWriter.writeUint8Array(offset, this.#encodeString('DICM'));\n // FileMetaInformationGroupLength\n offset = this.#writeDataElement(metaWriter, fmigl, offset, false);\n // write meta\n for (let j = 0, lenj = metaElements.length; j < lenj; ++j) {\n offset = this.#writeDataElement(\n metaWriter, metaElements[j], offset, false);\n }\n\n // check meta position\n const preambleSize = 128 + 4;\n const metaOffset = preambleSize + fmiglSize + metaLength;\n if (offset !== metaOffset) {\n logger.warn('Bad size calculation... meta offset: ' + offset +\n ', calculated size:' + metaOffset +\n ' (diff:' + (offset - metaOffset) + ')');\n }\n\n // write non meta\n for (let k = 0, lenk = rawElements.length; k < lenk; ++k) {\n offset = this.#writeDataElement(\n dataWriter, rawElements[k], offset, isImplicit);\n }\n\n // check final position\n if (offset !== totalSize) {\n logger.warn('Bad size calculation... final offset: ' + offset +\n ', calculated size:' + totalSize +\n ' (diff:' + (offset - totalSize) + ')');\n }\n // return\n return buffer;\n }\n\n /**\n * Set a DICOM element value according to its VR (Value Representation).\n *\n * @param {DataElement} element The DICOM element to set the value.\n * @param {object} value The value to set.\n * @param {boolean} isImplicit Does the data use implicit VR?\n * @param {number} [bitsAllocated] Bits allocated used for pixel data.\n * @returns {number} The total element size.\n */\n #setElementValue(\n element, value, isImplicit, bitsAllocated) {\n // byte size of the element\n let size = 0;\n // special sequence case\n if (element.vr === 'SQ') {\n\n if (value !== null && value !== 0) {\n const newItems = [];\n\n // explicit or undefined length sequence\n let undefinedLength = false;\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLength = element.undefinedLength;\n delete element.undefinedLength;\n }\n\n // items\n for (let i = 0; i < value.length; ++i) {\n const oldItemElements = value[i];\n const newItemElements = [];\n let subSize = 0;\n\n // check data\n if (oldItemElements === null || oldItemElements === 0) {\n continue;\n }\n\n // possible local bitsAllocated\n let sqBitsAllocated = bitsAllocated;\n const dataElement = oldItemElements[TagKeys.BitsAllocated];\n if (typeof dataElement !== 'undefined' &&\n typeof dataElement.value !== 'undefined') {\n sqBitsAllocated = dataElement.value[0];\n }\n\n // elements\n const itemKeys = Object.keys(oldItemElements);\n for (let j = 0, lenj = itemKeys.length; j < lenj; ++j) {\n const itemKey = itemKeys[j];\n const subElement = oldItemElements[itemKey];\n subElement.tag = getTagFromKey(itemKey);\n\n if (isItemTag(subElement.tag)) {\n continue;\n }\n // set item value\n subSize += this.#setElementValue(\n subElement, subElement.value, isImplicit, sqBitsAllocated);\n newItemElements.push(subElement);\n // add prefix size\n subSize += getDataElementPrefixByteSize(\n subElement.vr, isImplicit);\n }\n\n // add item element (used to store its size)\n const itemElement = {\n tag: getItemTag(),\n vr: 'NONE',\n vl: subSize,\n value: []\n };\n if (undefinedLength) {\n itemElement.undefinedLength = undefinedLength;\n }\n newItemElements.push(itemElement);\n subSize += getDataElementPrefixByteSize(\n itemElement.vr, isImplicit);\n\n // add item delimitation size\n if (undefinedLength) {\n subSize += getDataElementPrefixByteSize(\n 'NONE', isImplicit);\n }\n\n // sort\n const elemSortFunc = function (a, b) {\n return tagCompareFunction(a.tag, b.tag);\n };\n newItemElements.sort(elemSortFunc);\n\n size += subSize;\n newItems.push(newItemElements);\n }\n\n // add sequence delimitation size\n if (undefinedLength) {\n size += getDataElementPrefixByteSize('NONE', isImplicit);\n }\n\n // update sequence element\n element.value = newItems;\n element.vl = size;\n if (undefinedLength) {\n element.undefinedLength = undefinedLength;\n }\n }\n } else {\n // pad if necessary\n if (isVrToPad(element.vr)) {\n const padStr = getVrPad(element.vr);\n // encode string\n // TODO: not sure for UN...\n if (isStringVr(element.vr)) {\n let pad;\n if (isCharSetStringVR(element.vr)) {\n value = this.#encodeSpecialString(value.join('\\\\'));\n pad = this.#encodeSpecialString(padStr);\n } else {\n value = this.#encodeString(value.join('\\\\'));\n pad = this.#encodeString(padStr);\n }\n if (!isEven(value.length)) {\n value = uint8ArrayPush(value, pad);\n }\n } else if (element.vr === 'OB') {\n value = padOBValue(value);\n }\n }\n\n // calculate byte size\n size = 0;\n if (element.vr === 'AT') {\n size = 4 * value.length;\n } else if (element.vr === 'xs') {\n size = value.length * Uint16Array.BYTES_PER_ELEMENT;\n } else if (isTypedArrayVr(element.vr) || element.vr === 'ox') {\n if (isPixelDataTag(element.tag) &&\n Array.isArray(value)) {\n size = 0;\n for (let b = 0; b < value.length; ++b) {\n size += value[b].length;\n }\n } else {\n size = value.length;\n }\n\n // convert size to bytes\n const vrType = vrTypes[element.vr];\n if (isPixelDataTag(element.tag) || element.vr === 'ox') {\n if (element.undefinedLength) {\n const itemPrefixSize =\n getDataElementPrefixByteSize('NONE', isImplicit);\n // offset table\n size += itemPrefixSize;\n // pixel items\n size += itemPrefixSize * value.length;\n // add sequence delimitation size\n size += itemPrefixSize;\n } else {\n // use bitsAllocated for pixel data\n // no need to multiply for 8 bits\n if (typeof bitsAllocated !== 'undefined') {\n if (bitsAllocated === 1) {\n // binary data\n size /= 8;\n } else if (bitsAllocated === 16) {\n size *= Uint16Array.BYTES_PER_ELEMENT;\n }\n }\n }\n } else if (typeof vrType !== 'undefined') {\n const bpe = getBpeForVrType(vrType);\n if (typeof bpe !== 'undefined') {\n size *= bpe;\n } else {\n throw new Error('Unknown bytes per element for VR type: ' + vrType);\n }\n } else {\n throw new Error('Unsupported element: ' + element.vr);\n }\n } else {\n size = value.length;\n }\n\n element.value = value;\n element.vl = size;\n }\n\n // return the size of that data\n return size;\n }\n\n} // class DicomWriter\n\n/**\n * Fix for broken DICOM elements: replace \"UN\" with correct VR if the\n * element exists in dictionary.\n *\n * @param {DataElement} element The DICOM element.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is little\n * or big endian (default: true).\n */\nfunction checkAndFixUnknownVR(element, isLittleEndian) {\n if (element.vr === 'UN') {\n const dictVr = element.tag.getVrFromDictionary();\n if (typeof dictVr !== 'undefined' && element.vr !== dictVr) {\n element.vr = dictVr;\n // cast typed array value from Uint8 to vr type\n const vrType = vrTypes[element.vr];\n if (typeof vrType !== 'undefined' &&\n vrType !== 'Uint8' &&\n vrType !== 'string') {\n const data = getUint8ToVrValue(\n element.value, element.vr, isLittleEndian);\n if (typeof data !== 'undefined') {\n element.value = data;\n }\n }\n logger.info('Element ' + element.tag.getGroup() +\n ' ' + element.tag.getElement() +\n ' VR changed from UN to ' + element.vr);\n }\n }\n}\n\n/**\n * Get the casted typed array value from Uint8 to vr type.\n *\n * @param {object} value The value to cast.\n * @param {string} vr The DICOM element VR.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is little\n * or big endian (default: true).\n * @returns {object} The element value casted to the vr type.\n */\nfunction getUint8ToVrValue(value, vr, isLittleEndian) {\n let data;\n if (typeof value.buffer === 'undefined') {\n return data;\n }\n const reader = new DataReader(value.buffer, isLittleEndian);\n const offset = value.byteOffset;\n const vl = value.length; // size before cast\n const vrType = vrTypes[vr];\n if (vrType === 'Uint16') {\n data = reader.readUint16Array(offset, vl);\n } else if (vrType === 'Uint32') {\n data = reader.readUint32Array(offset, vl);\n } else if (vrType === 'Uint64') {\n data = reader.readUint64Array(offset, vl);\n } else if (vrType === 'Int16') {\n data = Array.from(reader.readInt16Array(offset, vl));\n } else if (vrType === 'Int32') {\n data = Array.from(reader.readInt32Array(offset, vl));\n } else if (vrType === 'Int64') {\n data = reader.readInt64Array(offset, vl);\n } else if (vrType === 'Float32') {\n data = Array.from(reader.readFloat32Array(offset, vl));\n } else if (vrType === 'Float64') {\n data = Array.from(reader.readFloat64Array(offset, vl));\n }\n return data;\n}\n\n/**\n * Get a DICOM element from its tag name (value set separatly).\n *\n * @param {string} tagName The string tag name.\n * @returns {DataElement} The DICOM element.\n */\nfunction getDataElement(tagName) {\n const tag = getTagFromDictionary(tagName);\n const element = new DataElement(tag.getVrFromDictionary());\n element.tag = tag;\n return element;\n}\n\n/**\n * Get the number of bytes per element for a given VR type.\n *\n * @param {string} vrType The VR type as defined in the dictionary.\n * @returns {number} The bytes per element.\n */\nfunction getBpeForVrType(vrType) {\n let bpe;\n if (vrType === 'Uint8') {\n bpe = Uint8Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Uint16') {\n bpe = Uint16Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Int16') {\n bpe = Int16Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Uint32') {\n bpe = Uint32Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Int32') {\n bpe = Int32Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Float32') {\n bpe = Float32Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Float64') {\n bpe = Float64Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Uint64') {\n bpe = BigUint64Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Int64') {\n bpe = BigInt64Array.BYTES_PER_ELEMENT;\n }\n return bpe;\n}\n\n/**\n * Get the DICOM elements from a 'simple' DICOM tags object.\n * The input object is a simplified version of the oficial DICOM json with\n * tag names instead of keys and direct values (no value property) for\n * simple tags. See synthetic test data (in tests/dicom) for examples.\n *\n * @param {Object} simpleTags The 'simple' DICOM\n * tags object.\n * @returns {Object} The DICOM elements.\n */\nexport function getElementsFromJSONTags(simpleTags) {\n const keys = Object.keys(simpleTags);\n const dataElements = {};\n for (let k = 0, len = keys.length; k < len; ++k) {\n // get the DICOM element definition from its name\n const tag = getTagFromDictionary(keys[k]);\n if (typeof tag === 'undefined') {\n continue;\n }\n const vr = tag.getVrFromDictionary();\n // tag value\n let value;\n let undefinedLength = false;\n const simpleTag = simpleTags[keys[k]];\n if (vr === 'SQ') {\n const items = [];\n if (typeof simpleTag.undefinedLength !== 'undefined') {\n undefinedLength = simpleTag.undefinedLength;\n }\n if (typeof simpleTag.value !== 'undefined' &&\n simpleTag.value !== null) {\n for (let i = 0; i < simpleTag.value.length; ++i) {\n items.push(getElementsFromJSONTags(simpleTag.value[i]));\n }\n } else {\n logger.trace('Undefined or null simpleTag SQ value.');\n }\n value = items;\n } else {\n if (Array.isArray(simpleTag)) {\n value = simpleTag;\n } else {\n value = [simpleTag];\n }\n }\n // create element\n const dataElement = new DataElement(vr);\n dataElement.tag = tag;\n dataElement.value = value;\n if (undefinedLength) {\n dataElement.undefinedLength = undefinedLength;\n }\n // store\n dataElements[tag.getKey()] = dataElement;\n }\n // return\n // @ts-expect-error\n return dataElements;\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * DICOM code tag keys.\n */\nconst TagKeys = {\n CodeValue: '00080100',\n CodingSchemeDesignator: '00080102',\n CodeMeaning: '00080104',\n LongCodeValue: '00080119',\n URNCodeValue: '00080120'\n};\n\n/**\n * DICOM code: item of a basic code sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_8.8.html}.\n * List: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part16/chapter_d.html}.\n */\nexport class DicomCode {\n /**\n * Code meaning.\n *\n * @type {string}\n */\n meaning;\n /**\n * Code value.\n *\n * @type {string|undefined}\n */\n value;\n /**\n * Long code value.\n *\n * @type {string|undefined}\n */\n longValue;\n /**\n * URN code value.\n *\n * @type {string|undefined}\n */\n urnValue;\n /**\n * Coding scheme designator.\n *\n * @type {string|undefined}\n */\n schemeDesignator;\n\n /**\n * @param {string} meaning The code meaning.\n */\n constructor(meaning) {\n this.meaning = meaning;\n }\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The code as string.\n */\n toString() {\n return '(' + this.value + ', ' +\n this.schemeDesignator + ', \\'' +\n this.meaning + '\\')';\n }\n}\n\n/**\n * Check if two code objects are equal.\n *\n * @param {DicomCode} code1 The first code.\n * @param {DicomCode} code2 The second code.\n * @returns {boolean} True if both codes are equal.\n */\nexport function isEqualCode(code1, code2) {\n return Object.keys(code1).length === Object.keys(code2).length &&\n Object.keys(code1).every(key =>\n Object.prototype.hasOwnProperty.call(code2, key) &&\n code1[key] === code2[key]\n );\n}\n\n/**\n * Get a code object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {DicomCode} A code object.\n */\nexport function getCode(dataElements) {\n // meaning -> CodeMeaning (type1)\n const code = new DicomCode(dataElements[TagKeys.CodeMeaning].value[0]);\n // value -> CodeValue (type1C)\n // longValue -> LongCodeValue (type1C)\n // urnValue -> URNCodeValue (type1C)\n if (typeof dataElements[TagKeys.CodeValue] !== 'undefined') {\n code.value = dataElements[TagKeys.CodeValue].value[0];\n } else if (typeof dataElements[TagKeys.LongCodeValue] !== 'undefined') {\n code.longValue = dataElements[TagKeys.LongCodeValue].value[0];\n } else if (typeof dataElements[TagKeys.URNCodeValue] !== 'undefined') {\n code.urnValue = dataElements[TagKeys.URNCodeValue].value[0];\n } else {\n throw new Error(\n 'Invalid code with no value, no long value and no urn value.');\n }\n // schemeDesignator -> CodingSchemeDesignator (type1C)\n if (typeof code.value !== 'undefined' ||\n typeof code.longValue !== 'undefined') {\n if (typeof dataElements[TagKeys.CodingSchemeDesignator] !== 'undefined') {\n code.schemeDesignator =\n dataElements[TagKeys.CodingSchemeDesignator].value[0];\n } else {\n throw new Error(\n 'No coding sheme designator when code value or long value is present');\n }\n }\n return code;\n}\n\n/**\n * Get a simple dicom element item from a code object.\n *\n * @param {DicomCode} code The code object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomCodeItem(code) {\n // dicom item (tags are in group/element order)\n const item = {};\n // value\n if (typeof code.value !== 'undefined') {\n item.CodeValue = code.value;\n } else if (typeof code.longValue !== 'undefined') {\n item.LongCodeValue = code.longValue;\n } else if (typeof code.urnValue !== 'undefined') {\n item.URNCodeValue = code.urnValue;\n }\n // CodingSchemeDesignator\n if (typeof code.schemeDesignator !== 'undefined') {\n item.CodingSchemeDesignator = code.schemeDesignator;\n }\n // CodeMeaning\n item.CodeMeaning = code.meaning;\n // return\n return item;\n}\n\n/**\n * DICOM codes.\n */\nconst DcmCodes = {\n 111030: 'Image Region',\n 112039: 'Tracking Identifier',\n 112040: 'Tracking Unique Identifier',\n 113076: 'Segmentation',\n 121322: 'Source image for image processing operation',\n 121324: 'Source Image',\n 125007: 'Measurement Group',\n 125309: 'Short label'\n};\n\n/**\n * Get a DICOM code from a value (~id).\n *\n * @param {string} value The code value.\n * @returns {DicomCode} The DICOM code.\n */\nfunction getDicomCode(value) {\n const code = new DicomCode(DcmCodes[value]);\n code.schemeDesignator = 'DCM';\n code.value = value;\n return code;\n}\n\n/**\n * Get a measurement group DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getMeasurementGroupCode() {\n return getDicomCode('125007');\n}\n\n/**\n * Get an image region DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getImageRegionCode() {\n return getDicomCode('111030');\n}\n\n/**\n * Get a source image DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getSourceImageCode() {\n return getDicomCode('121324');\n}\n\n/**\n * Get a tracking identifier DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getTrackingIdentifierCode() {\n return getDicomCode('112039');\n}\n\n/**\n * Get a segmentation DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getSegmentationCode() {\n return getDicomCode('113076');\n}\n\n/**\n * Get a source image for processing DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getSourceImageForProcessingCode() {\n return getDicomCode('121322');\n}\n\n/**\n * Get a short label DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getShortLabelCode() {\n return getDicomCode('125309');\n}\n","import {\n isEqualRgb,\n cielabToSrgb,\n uintLabToLab,\n labToUintLab,\n srgbToCielab\n} from '../utils/colour';\nimport {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {RGB} from '../utils/colour';\nimport {DataElement} from './dataElement';\nimport {DicomCode} from './dicomCode';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n SegmentNumber: '00620004',\n SegmentLabel: '00620005',\n SegmentAlgorithmType: '00620008',\n SegmentAlgorithmName: '00620009',\n RecommendedDisplayGrayscaleValue: '0062000C',\n RecommendedDisplayCIELabValue: '0062000D',\n SegmentedPropertyCategoryCodeSequence: '00620003',\n SegmentedPropertyTypeCodeSequence: '0062000F',\n TrackingID: '00620020',\n TrackingUID: '00620021'\n};\n\n/**\n * DICOM (mask) segment: item of a SegmentSequence (0062,0002).\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.8.20.4.html}.\n */\nexport class MaskSegment {\n /**\n * Segment number (0062,0004).\n *\n * @type {number}\n */\n number;\n /**\n * Segment label (0062,0005).\n *\n * @type {string}\n */\n label;\n /**\n * Segment algorithm type (0062,0008).\n *\n * @type {string}\n */\n algorithmType;\n /**\n * Segment algorithm name (0062,0009).\n *\n * @type {string|undefined}\n */\n algorithmName;\n /**\n * Segment display value as simple value.\n *\n * @type {number|undefined}\n */\n displayValue;\n /**\n * Segment display value as RGB colour ({r,g,b}).\n *\n * @type {RGB|undefined}\n */\n displayRGBValue;\n /**\n * Segment property code: specific property\n * the segment represents (0062,000F).\n *\n * @type {DicomCode|undefined}\n */\n propertyTypeCode;\n /**\n * Segment property category code: general category\n * of the property the segment represents (0062,0003).\n *\n * @type {DicomCode|undefined}\n */\n propertyCategoryCode;\n /**\n * Segment tracking UID (0062,0021).\n *\n * @type {string|undefined}\n */\n trackingUid;\n /**\n * Segment tracking id: text label for the UID (0062,0020).\n *\n * @type {string|undefined}\n */\n trackingId;\n\n /**\n * @param {number} number The segment number.\n * @param {string} label The segment label.\n * @param {string} algorithmType The segment number.\n */\n constructor(number, label, algorithmType) {\n this.number = number;\n this.label = label;\n this.algorithmType = algorithmType;\n }\n}\n\n/**\n * Get a segment object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {MaskSegment} A segment object.\n */\nexport function getSegment(dataElements) {\n // number -> SegmentNumber (type1)\n // label -> SegmentLabel (type1)\n // algorithmType -> SegmentAlgorithmType (type1)\n const segment = new MaskSegment(\n dataElements[TagKeys.SegmentNumber].value[0],\n dataElements[TagKeys.SegmentLabel]\n ? dataElements[TagKeys.SegmentLabel].value[0] : 'n/a',\n dataElements[TagKeys.SegmentAlgorithmType].value[0]\n );\n // algorithmName -> SegmentAlgorithmName (type1C)\n if (typeof dataElements[TagKeys.SegmentAlgorithmName] !== 'undefined') {\n segment.algorithmName = dataElements[TagKeys.SegmentAlgorithmName].value[0];\n }\n // // required if type is not MANUAL\n // if (segment.algorithmType !== 'MANUAL' &&\n // (typeof segment.algorithmName === 'undefined' ||\n // segment.algorithmName.length === 0)) {\n // throw new Error('Empty algorithm name for non MANUAL algorithm type.');\n // }\n // displayValue ->\n // - RecommendedDisplayGrayscaleValue\n // - RecommendedDisplayCIELabValue converted to RGB\n if (typeof dataElements[TagKeys.RecommendedDisplayGrayscaleValue] !==\n 'undefined') {\n segment.displayValue =\n dataElements[TagKeys.RecommendedDisplayGrayscaleValue].value[0];\n } else if (typeof dataElements[TagKeys.RecommendedDisplayCIELabValue] !==\n 'undefined') {\n const cielabElement =\n dataElements[TagKeys.RecommendedDisplayCIELabValue].value;\n const rgb = cielabToSrgb(uintLabToLab({\n l: cielabElement[0],\n a: cielabElement[1],\n b: cielabElement[2]\n }));\n segment.displayRGBValue = rgb;\n }\n // Segmented Property Category Code Sequence (type1, only one)\n if (typeof dataElements[TagKeys.SegmentedPropertyCategoryCodeSequence] !==\n 'undefined') {\n segment.propertyCategoryCode =\n getCode(\n dataElements[TagKeys.SegmentedPropertyCategoryCodeSequence].value[0]\n );\n } else {\n throw new Error('Missing Segmented Property Category Code Sequence.');\n }\n // Segmented Property Type Code Sequence (type1)\n if (typeof dataElements[TagKeys.SegmentedPropertyTypeCodeSequence] !==\n 'undefined') {\n segment.propertyTypeCode =\n getCode(dataElements[TagKeys.SegmentedPropertyTypeCodeSequence].value[0]);\n } else {\n throw new Error('Missing Segmented Property Type Code Sequence.');\n }\n // tracking Id and UID (type1C)\n if (typeof dataElements[TagKeys.TrackingID] !== 'undefined') {\n segment.trackingId = dataElements[TagKeys.TrackingID].value[0];\n segment.trackingUid = dataElements[TagKeys.TrackingUID].value[0];\n }\n\n return segment;\n}\n\n/**\n * Check if two segment objects are equal.\n *\n * @param {MaskSegment} seg1 The first segment.\n * @param {MaskSegment} seg2 The second segment.\n * @returns {boolean} True if both segment are equal.\n */\nexport function isEqualSegment(seg1, seg2) {\n // basics\n if (typeof seg1 === 'undefined' ||\n typeof seg2 === 'undefined' ||\n seg1 === null ||\n seg2 === null) {\n return false;\n }\n let isEqual = seg1.number === seg2.number &&\n seg1.label === seg2.label &&\n seg1.algorithmType === seg2.algorithmType;\n // display value\n if (typeof seg1.displayRGBValue !== 'undefined' &&\n typeof seg2.displayRGBValue !== 'undefined') {\n isEqual = isEqual &&\n isEqualRgb(seg1.displayRGBValue, seg2.displayRGBValue);\n } else if (typeof seg1.displayValue !== 'undefined' &&\n typeof seg2.displayValue !== 'undefined') {\n isEqual = isEqual &&\n seg1.displayValue === seg2.displayValue;\n } else {\n isEqual = false;\n }\n // algorithmName\n if (typeof seg1.algorithmName !== 'undefined') {\n if (typeof seg2.algorithmName === 'undefined') {\n isEqual = false;\n } else {\n isEqual = isEqual &&\n seg1.algorithmName === seg2.algorithmName;\n }\n }\n\n return isEqual;\n}\n\n/**\n * Check if two segment objects are similar: either the\n * number or the displayValue are equal.\n *\n * @param {MaskSegment} seg1 The first segment.\n * @param {MaskSegment} seg2 The second segment.\n * @returns {boolean} True if both segment are similar.\n */\nexport function isSimilarSegment(seg1, seg2) {\n // basics\n if (typeof seg1 === 'undefined' ||\n typeof seg2 === 'undefined' ||\n seg1 === null ||\n seg2 === null) {\n return false;\n }\n let isSimilar = seg1.number === seg2.number;\n // display value\n if (typeof seg1.displayRGBValue !== 'undefined' &&\n typeof seg2.displayRGBValue !== 'undefined') {\n isSimilar = isSimilar ||\n isEqualRgb(seg1.displayRGBValue, seg2.displayRGBValue);\n } else if (typeof seg1.displayValue !== 'undefined' &&\n typeof seg2.displayValue !== 'undefined') {\n isSimilar = isSimilar ||\n seg1.displayValue === seg2.displayValue;\n } else {\n isSimilar = false;\n }\n\n return isSimilar;\n}\n\n/**\n * Get a dicom simple tag from a segment object.\n *\n * @param {MaskSegment} segment The segment object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSegmentItem(segment) {\n let algoType = segment.algorithmType;\n if (algoType === undefined) {\n algoType = 'MANUAL';\n }\n // dicom item (tags are in group/element order)\n const segmentItem = {\n SegmentNumber: segment.number,\n SegmentLabel: segment.label,\n SegmentAlgorithmType: algoType\n };\n // SegmentAlgorithmName\n if (algoType !== 'MANUAL' && segment.algorithmName !== undefined) {\n segmentItem.SegmentAlgorithmName = segment.algorithmName;\n }\n // RecommendedDisplay value\n if (segment.displayRGBValue) {\n const cieLab = labToUintLab(srgbToCielab(segment.displayRGBValue));\n segmentItem.RecommendedDisplayCIELabValue = [\n Math.round(cieLab.l),\n Math.round(cieLab.a),\n Math.round(cieLab.b)\n ];\n } else {\n segmentItem.RecommendedDisplayGrayscaleValue = segment.displayValue;\n }\n // SegmentedPropertyCategoryCodeSequence\n if (segment.propertyCategoryCode) {\n segmentItem.SegmentedPropertyCategoryCodeSequence = {\n value: [getDicomCodeItem(segment.propertyCategoryCode)]\n };\n }\n // SegmentedPropertyTypeCodeSequence\n if (segment.propertyTypeCode) {\n segmentItem.SegmentedPropertyTypeCodeSequence = {\n value: [getDicomCodeItem(segment.propertyTypeCode)]\n };\n }\n // tracking\n if (segment.trackingId) {\n segmentItem.TrackingID = segment.trackingId;\n segmentItem.TrackingUID = segment.trackingUid;\n }\n // return\n return segmentItem;\n}\n","import {getSpacingFromMeasure} from './dicomElementsWrapper';\nimport {logger} from '../utils/logger';\nimport {arrayEquals} from '../utils/array';\nimport {\n getDicomCodeItem,\n getSegmentationCode,\n getSourceImageForProcessingCode\n} from './dicomCode';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\nimport {Spacing} from '../image/spacing';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n DerivationImageSequence: '00089124',\n SourceImageSequence: '00082112',\n ReferencedSOPClassUID: '00081150',\n ReferencedSOPInstanceUID: '00081155',\n FrameContentSequence: '00209111',\n DimensionIndexValue: '00209157',\n SegmentIdentificationSequence: '0062000A',\n ReferencedSegmentNumber: '0062000B',\n PlanePositionSequence: '00209113',\n ImagePosition: '00200032',\n PlaneOrientationSequence: '00209116',\n ImageOrientation: '00200037',\n PixelMeasuresSequence: '00289110'\n};\n\n/**\n * DICOM segment frame info: item of a\n * PerframeFunctionalGroupsSequence (5200,9230).\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.7.6.16.html}.\n */\nexport class DicomSegmentFrameInfo {\n /**\n * The dimension index.\n *\n * @type {number[]}\n */\n dimIndex;\n /**\n * The frame image position patient.\n *\n * @type {number[]}\n */\n imagePosPat;\n /**\n * List of derivation images.\n *\n * @type {Array}\n */\n derivationImages;\n /**\n * The reference segment number.\n *\n * @type {number}\n */\n refSegmentNumber;\n\n /**\n * The frame image orientation.\n *\n * @type {number[]|undefined}\n */\n imageOrientationPatient;\n /**\n * The frame spacing.\n *\n * @type {Spacing|undefined}\n */\n spacing;\n\n /**\n * @param {number[]} dimIndex The dimension index.\n * @param {number[]} imagePosPat The frame image position patient.\n * @param {Array} derivationImages List of derivation images.\n * @param {number} refSegmentNumber The reference segment number.\n */\n constructor(dimIndex, imagePosPat, derivationImages, refSegmentNumber) {\n this.dimIndex = dimIndex;\n this.imagePosPat = imagePosPat;\n this.derivationImages = derivationImages;\n this.refSegmentNumber = refSegmentNumber;\n }\n}\n\n/**\n * Get a frame information object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {DicomSegmentFrameInfo} A frame information object.\n */\nexport function getSegmentFrameInfo(dataElements) {\n // Derivation Image Sequence\n const derivationImages = [];\n if (typeof dataElements[TagKeys.DerivationImageSequence] !== 'undefined') {\n const derivationImageSq =\n dataElements[TagKeys.DerivationImageSequence].value;\n // Source Image Sequence\n for (let i = 0; i < derivationImageSq.length; ++i) {\n const sourceImages = [];\n if (typeof derivationImageSq[i][TagKeys.SourceImageSequence] !==\n 'undefined') {\n const sourceImageSq =\n derivationImageSq[i][TagKeys.SourceImageSequence].value;\n for (let j = 0; j < sourceImageSq.length; ++j) {\n const sourceImage = {};\n // Referenced SOP Class UID\n if (typeof sourceImageSq[j][TagKeys.ReferencedSOPClassUID] !==\n 'undefined') {\n sourceImage.referencedSOPClassUID =\n sourceImageSq[j][TagKeys.ReferencedSOPClassUID].value[0];\n }\n // Referenced SOP Instance UID\n if (typeof sourceImageSq[j][TagKeys.ReferencedSOPInstanceUID] !==\n 'undefined') {\n sourceImage.referencedSOPInstanceUID =\n sourceImageSq[j][TagKeys.ReferencedSOPInstanceUID].value[0];\n }\n sourceImages.push(sourceImage);\n }\n }\n derivationImages.push({\n sourceImages: sourceImages\n });\n }\n }\n // Frame Content Sequence (required, only one)\n const frameContentSq = dataElements[TagKeys.FrameContentSequence].value;\n // Dimension Index Value\n const dimIndex = frameContentSq[0][TagKeys.DimensionIndexValue].value;\n // Segment Identification Sequence (required, only one)\n const segmentIdSq = dataElements[TagKeys.SegmentIdentificationSequence].value;\n // Referenced Segment Number\n const refSegmentNumber =\n parseInt(segmentIdSq[0][TagKeys.ReferencedSegmentNumber].value[0], 0);\n // Plane Position Sequence (required, only one)\n const planePosSq = dataElements[TagKeys.PlanePositionSequence].value;\n // Image Position (Patient) (conditionally required)\n const imagePosPat = planePosSq[0][TagKeys.ImagePosition].value;\n for (let p = 0; p < imagePosPat.length; ++p) {\n imagePosPat[p] = parseFloat(imagePosPat[p]);\n }\n const frameInfo = new DicomSegmentFrameInfo(\n dimIndex,\n imagePosPat,\n derivationImages,\n refSegmentNumber\n );\n // Plane Orientation Sequence\n if (typeof dataElements[TagKeys.PlaneOrientationSequence] !== 'undefined') {\n const framePlaneOrientationSeq =\n dataElements[TagKeys.PlaneOrientationSequence];\n if (framePlaneOrientationSeq.value.length !== 0) {\n // should only be one Image Orientation (Patient)\n const frameImageOrientation =\n framePlaneOrientationSeq.value[0][TagKeys.ImageOrientation].value;\n if (typeof frameImageOrientation !== 'undefined') {\n frameInfo.imageOrientationPatient = frameImageOrientation;\n }\n }\n }\n // Pixel Measures Sequence\n if (typeof dataElements[TagKeys.PixelMeasuresSequence] !== 'undefined') {\n const framePixelMeasuresSeq = dataElements[TagKeys.PixelMeasuresSequence];\n if (framePixelMeasuresSeq.value.length !== 0) {\n // should only be one\n const frameSpacing =\n getSpacingFromMeasure(framePixelMeasuresSeq.value[0]);\n if (typeof frameSpacing !== 'undefined') {\n frameInfo.spacing = frameSpacing;\n }\n } else {\n logger.warn(\n 'No shared functional group pixel measure sequence items.');\n }\n }\n\n return frameInfo;\n}\n\n/**\n * Check if two frame info objects are equal.\n *\n * @param {DicomSegmentFrameInfo} dsfi1 The first frame info.\n * @param {DicomSegmentFrameInfo} dsfi2 The second frame info.\n * @returns {boolean} True if both frame info are equal.\n */\nexport function isEqualSegmentFrameInfo(dsfi1, dsfi2) {\n // basics\n if (typeof dsfi1 === 'undefined' ||\n typeof dsfi2 === 'undefined' ||\n dsfi1 === null ||\n dsfi2 === null) {\n return false;\n }\n let isEqual =\n arrayEquals(dsfi1.dimIndex, dsfi2.dimIndex) &&\n arrayEquals(dsfi1.imagePosPat, dsfi2.imagePosPat) &&\n dsfi1.refSegmentNumber === dsfi2.refSegmentNumber;\n\n isEqual = isEqual &&\n dsfi1.derivationImages.length === dsfi2.derivationImages.length;\n for (let i = 0; i < dsfi1.derivationImages.length; ++i) {\n const derivationImage1 = dsfi1.derivationImages[i];\n const derivationImage2 = dsfi2.derivationImages[i];\n isEqual = isEqual &&\n derivationImage1.sourceImages.length ===\n derivationImage2.sourceImages.length;\n for (let j = 0; j < derivationImage1.length; ++j) {\n const sourceImage1 = derivationImage1.sourceImages[j];\n const sourceImage2 = derivationImage2.sourceImages[j];\n isEqual = isEqual &&\n sourceImage1.referencedSOPClassUID ===\n sourceImage2.referencedSOPClassUID &&\n sourceImage1.referencedSOPInstanceUID ===\n sourceImage2.referencedSOPInstanceUID;\n }\n }\n\n return isEqual;\n}\n\n/**\n * Get a dicom item from a frame information object.\n *\n * @param {object} frameInfo The frame information object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSegmentFrameInfoItem(frameInfo) {\n const item = {\n FrameContentSequence: {\n value: [\n {\n DimensionIndexValues: frameInfo.dimIndex\n }\n ]\n },\n PlanePositionSequence: {\n value: [\n {\n ImagePositionPatient: frameInfo.imagePosPat\n }\n ]\n },\n SegmentIdentificationSequence: {\n value: [\n {\n ReferencedSegmentNumber: frameInfo.refSegmentNumber\n }\n ]\n }\n };\n // optional DerivationImageSequence\n if (frameInfo.derivationImages !== undefined) {\n const sourceImgPurposeOfReferenceCode =\n getDicomCodeItem(getSourceImageForProcessingCode());\n const segDerivationCode =\n getDicomCodeItem(getSegmentationCode());\n\n const derivationImageItems = [];\n for (const derivationImage of frameInfo.derivationImages) {\n const sourceImages = [];\n for (const sourceImage of derivationImage.sourceImages) {\n sourceImages.push({\n PurposeOfReferenceCodeSequence: {\n value: [sourceImgPurposeOfReferenceCode]\n },\n ReferencedSOPClassUID: sourceImage.referencedSOPClassUID,\n ReferencedSOPInstanceUID: sourceImage.referencedSOPInstanceUID\n });\n }\n\n derivationImageItems.push({\n DerivationCodeSequence: {\n value: [segDerivationCode]\n },\n SourceImageSequence: {\n value: sourceImages\n }\n });\n }\n\n item.DerivationImageSequence = {\n value: derivationImageItems\n };\n }\n\n return item;\n}\n","import {\n dateToDateObj,\n getDicomDate,\n dateToTimeObj,\n getDicomTime,\n} from '../dicom/dicomDate';\nimport {\n getImage2DSize,\n getSpacingFromMeasure,\n getDimensionOrganization,\n getDicomMeasureItem,\n getDicomPlaneOrientationItem\n} from '../dicom/dicomElementsWrapper';\nimport {Tag} from '../dicom/dicomTag';\nimport {getElementsFromJSONTags} from '../dicom/dicomWriter';\nimport {\n getSegment,\n getDicomSegmentItem,\n} from '../dicom/dicomSegment';\nimport {\n getSegmentFrameInfo,\n getDicomSegmentFrameInfoItem\n} from '../dicom/dicomSegmentFrameInfo';\nimport {transferSyntaxKeywords} from '../dicom/dictionary';\nimport {Image} from '../image/image';\nimport {Geometry} from '../image/geometry';\nimport {Point, Point3D} from '../math/point';\nimport {Vector3D} from '../math/vector';\nimport {Index} from '../math/index';\nimport {Matrix33, REAL_WORLD_EPSILON} from '../math/matrix';\nimport {logger} from '../utils/logger';\nimport {arraySortEquals} from '../utils/array';\nimport {Size} from './size';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * @typedef {Object} DataElements\n */\n\n/**\n * Check two position patients for equality.\n *\n * @param {*} pos1 The first position patient.\n * @param {*} pos2 The second position patient.\n * @returns {boolean} True is equal.\n */\nfunction equalPosPat(pos1, pos2) {\n return JSON.stringify(pos1) === JSON.stringify(pos2);\n}\n\n/**\n * @callback compareFn\n * @param {object} a The first object.\n * @param {object} b The first object.\n * @returns {number} >0 to sort a after b, <0 to sort a before b,\n * 0 to not change order.\n */\n\n/**\n * Get a position patient compare function accroding to an\n * input orientation.\n *\n * @param {Matrix33} orientation The orientation matrix.\n * @returns {compareFn} The position compare function.\n */\nfunction getComparePosPat(orientation) {\n const invOrientation = orientation.getInverse();\n return function (pos1, pos2) {\n const p1 = invOrientation.multiplyArray3D(pos1);\n const p2 = invOrientation.multiplyArray3D(pos2);\n return p1[2] - p2[2];\n };\n}\n\n/**\n * Merge two tag lists.\n *\n * @param {object} tags1 Base list, will be modified.\n * @param {object} tags2 List to merge.\n */\nfunction mergeTags(tags1, tags2) {\n const keys2 = Object.keys(tags2);\n for (const tagName2 of keys2) {\n if (tags1[tagName2] !== undefined) {\n logger.trace('Overwritting tag: ' + tagName2);\n }\n tags1[tagName2] = tags2[tagName2];\n }\n}\n\n/**\n * Check that a DICOM tag definition is present in a parsed element.\n *\n * @param {DataElements} dataElements The root dicom element.\n * @param {object} tagDefinition The tag definition as {name, tag, type, enum}.\n */\nfunction checkTag(dataElements, tagDefinition) {\n const element = dataElements[tagDefinition.tag];\n // check null and undefined\n if (tagDefinition.type === 1 || tagDefinition.type === 2) {\n if (typeof element === 'undefined') {\n throw new Error('Missing or empty ' + tagDefinition.name);\n }\n } else {\n if (typeof element === 'undefined') {\n // non mandatory value, exit\n return;\n }\n }\n let includes = false;\n let tagValue;\n if (element.value.length === 1) {\n tagValue = element.value[0];\n } else {\n tagValue = element.value;\n }\n if (Array.isArray(tagValue)) {\n for (let i = 0; i < tagDefinition.enum.length; ++i) {\n if (!Array.isArray(tagDefinition.enum[i])) {\n throw new Error('Cannot compare array and non array tag value.');\n }\n if (arraySortEquals(tagDefinition.enum[i], tagValue)) {\n includes = true;\n break;\n }\n }\n } else {\n includes = tagDefinition.enum.includes(tagValue);\n }\n if (!includes) {\n throw new Error(\n 'Unsupported ' + tagDefinition.name + ' value: ' + tagValue);\n }\n}\n\n/**\n * Create ROI slice buffers.\n *\n * @param {Image} image The mask image.\n * @param {MaskSegment[]} segments The mask segments.\n * @param {number} sliceOffset The slice offset.\n * @returns {object} The ROI slice image buffers.\n */\nfunction createRoiSliceBuffers(\n image,\n segments,\n sliceOffset\n) {\n // access functions\n const numberOfComponents = image.getNumberOfComponents();\n const isRGB = numberOfComponents === 3;\n let getPixelValue;\n let equalValues;\n if (isRGB) {\n getPixelValue = function (inputOffset) {\n return {\n r: image.getValueAtOffset(inputOffset),\n g: image.getValueAtOffset(inputOffset + 1),\n b: image.getValueAtOffset(inputOffset + 2)\n };\n };\n equalValues = function (value, segment) {\n return (\n segment.displayRGBValue !== undefined &&\n value.r === segment.displayRGBValue.r &&\n value.g === segment.displayRGBValue.g &&\n value.b === segment.displayRGBValue.b\n );\n };\n } else {\n getPixelValue = function (inputOffset) {\n return image.getValueAtOffset(inputOffset);\n };\n equalValues = function (value, segment) {\n return value === segment.displayValue;\n };\n }\n\n // create binary mask buffers\n const geometry = image.getGeometry();\n const size = geometry.getSize();\n const sliceSize = size.getDimSize(2);\n const buffers = {};\n for (let o = 0; o < sliceSize; ++o) {\n const inputOffset = (sliceOffset + o) * numberOfComponents;\n const pixelValue = getPixelValue(inputOffset);\n for (const segment of segments) {\n const number2 = segment.number - 1;\n if (equalValues(pixelValue, segment)) {\n if (buffers[number2] === undefined) {\n buffers[number2] = new Uint8Array(sliceSize);\n }\n buffers[number2][o] = 1;\n }\n }\n }\n return buffers;\n}\n\n/**\n * Create ROI buffers.\n *\n * @param {Image} image The mask image.\n * @param {MaskSegment[]} segments The mask segments.\n * @returns {object} The ROI buffers.\n */\nfunction createRoiBuffers(image, segments) {\n const geometry = image.getGeometry();\n const size = geometry.getSize();\n\n // image buffer to multi frame\n const sliceSize = size.getDimSize(2);\n const roiBuffers = {};\n for (let k = 0; k < size.get(2); ++k) {\n const sliceOffset = k * sliceSize;\n // create slice buffers\n const buffers = createRoiSliceBuffers(image, segments, sliceOffset);\n // store slice buffers\n const keys0 = Object.keys(buffers);\n for (const key0 of keys0) {\n if (roiBuffers[key0] === undefined) {\n roiBuffers[key0] = {};\n }\n // ordering by slice index (follows posPat)\n roiBuffers[key0][k] = buffers[key0];\n }\n }\n return roiBuffers;\n}\n\n/**\n * List of DICOM Seg required tags.\n */\nconst RequiredDicomSegTags = [\n {\n name: 'TransferSyntaxUID',\n tag: '00020010',\n type: '1',\n enum: [\n transferSyntaxKeywords.ImplicitVRLittleEndian,\n transferSyntaxKeywords.ExplicitVRLittleEndian,\n transferSyntaxKeywords.ExplicitVRBigEndian\n ]\n },\n {\n name: 'MediaStorageSOPClassUID',\n tag: '00020002',\n type: '1',\n enum: ['1.2.840.10008.5.1.4.1.1.66.4']\n },\n {\n name: 'SOPClassUID',\n tag: '00020002',\n type: '1',\n enum: ['1.2.840.10008.5.1.4.1.1.66.4']\n },\n {\n name: 'Modality',\n tag: '00080060',\n type: '1',\n enum: ['SEG']\n },\n {\n name: 'SegmentationType',\n tag: '00620001',\n type: '1',\n enum: ['BINARY']\n },\n {\n name: 'DimensionOrganizationType',\n tag: '00209311',\n type: '3',\n enum: ['3D']\n },\n {\n name: 'ImageType',\n tag: '00080008',\n type: '1',\n enum: [['DERIVED', 'PRIMARY']]\n },\n {\n name: 'SamplesPerPixel',\n tag: '00280002',\n type: '1',\n enum: [1]\n },\n {\n name: 'PhotometricInterpretation',\n tag: '00280004',\n type: '1',\n enum: ['MONOCHROME2']\n },\n {\n name: 'PixelRepresentation',\n tag: '00280103',\n type: '1',\n enum: [0]\n },\n {\n name: 'BitsAllocated',\n tag: '00280100',\n type: '1',\n enum: [1]\n },\n {\n name: 'BitsStored',\n tag: '00280101',\n type: '1',\n enum: [1]\n },\n {\n name: 'HighBit',\n tag: '00280102',\n type: '1',\n enum: [0]\n },\n];\n\n/**\n * Get the default DICOM seg tags as an object.\n *\n * @returns {object} The default tags.\n */\nexport function getDefaultDicomSegJson() {\n const tags = {};\n for (let i = 0; i < RequiredDicomSegTags.length; ++i) {\n const reqTag = RequiredDicomSegTags[i];\n tags[reqTag.name] = reqTag.enum[0];\n }\n return tags;\n}\n\n/**\n * Mask {@link Image} factory.\n */\nexport class MaskFactory {\n\n /**\n * Possible warning created by checkElements.\n *\n * @type {string|undefined}\n */\n #warning;\n\n /**\n * Get a warning string if elements are not as expected.\n * Created by checkElements.\n *\n * @returns {string|undefined} The warning.\n */\n getWarning() {\n return this.#warning;\n }\n\n /**\n * Check dicom elements. Throws an error if not suitable.\n *\n * @param {Object} _dicomElements The DICOM tags.\n * @returns {string|undefined} A possible warning.\n */\n checkElements(_dicomElements) {\n // does nothing\n return;\n }\n\n /**\n * Get an {@link Image} object from the read DICOM file.\n *\n * @param {Object} dataElements The DICOM tags.\n * @param {Uint8Array | Int8Array |\n * Uint16Array | Int16Array |\n * Uint32Array | Int32Array} pixelBuffer The pixel buffer.\n * @returns {Image} A new Image.\n */\n create(dataElements, pixelBuffer) {\n // check required and supported tags\n for (let d = 0; d < RequiredDicomSegTags.length; ++d) {\n checkTag(dataElements, RequiredDicomSegTags[d]);\n }\n\n // image size\n const size2D = getImage2DSize(dataElements);\n const size = new Size([size2D[0], size2D[1], 1]);\n\n const sliceSize = size.getTotalSize();\n\n // frames\n let frames = 1;\n const framesElem = dataElements['00280008'];\n if (typeof framesElem !== 'undefined') {\n frames = parseInt(framesElem.value[0], 10);\n }\n\n if (frames !== pixelBuffer.length / sliceSize) {\n throw new Error(\n 'Buffer and numberOfFrames meta are not equal.' +\n frames + ' ' + pixelBuffer.length / sliceSize);\n }\n\n // Dimension Organization and Index\n const dimension = getDimensionOrganization(dataElements);\n\n // Segment Sequence\n const segSequence = dataElements['00620002'];\n if (typeof segSequence === 'undefined') {\n throw new Error('Missing or empty segmentation sequence');\n }\n const segments = [];\n let storeAsRGB = false;\n for (let i = 0; i < segSequence.value.length; ++i) {\n const segment = getSegment(segSequence.value[i]);\n if (typeof segment.displayRGBValue !== 'undefined') {\n // create rgb image\n storeAsRGB = true;\n }\n // store\n segments.push(segment);\n }\n\n\n // Shared Functional Groups Sequence\n let spacing;\n let imageOrientationPatient;\n const sharedFunctionalGroupsSeq = dataElements['52009229'];\n if (typeof sharedFunctionalGroupsSeq !== 'undefined') {\n // should be only one\n const funcGroup0 = sharedFunctionalGroupsSeq.value[0];\n // Plane Orientation Sequence\n if (typeof funcGroup0['00209116'] !== 'undefined') {\n const planeOrientationSeq = funcGroup0['00209116'];\n if (planeOrientationSeq.value.length !== 0) {\n // should be only one\n imageOrientationPatient =\n planeOrientationSeq.value[0]['00200037'].value;\n } else {\n logger.warn(\n 'No shared functional group plane orientation sequence items.');\n }\n }\n // Pixel Measures Sequence\n if (typeof funcGroup0['00289110'] !== 'undefined') {\n const pixelMeasuresSeq = funcGroup0['00289110'];\n if (pixelMeasuresSeq.value.length !== 0) {\n // should be only one\n spacing = getSpacingFromMeasure(pixelMeasuresSeq.value[0]);\n } else {\n logger.warn(\n 'No shared functional group pixel measure sequence items.');\n }\n }\n }\n\n const includesPosPat = function (arr, val) {\n return arr.some(function (arrVal) {\n return equalPosPat(val, arrVal);\n });\n };\n\n const findIndexPosPat = function (arr, val) {\n return arr.findIndex(function (arrVal) {\n return equalPosPat(val, arrVal);\n });\n };\n\n // Per-frame Functional Groups Sequence\n const perFrameFuncGroupSequence = dataElements['52009230'];\n if (typeof perFrameFuncGroupSequence === 'undefined') {\n throw new Error('Missing or empty per frame functional sequence');\n }\n if (frames !== perFrameFuncGroupSequence.value.length) {\n throw new Error(\n 'perFrameFuncGroupSequence meta and numberOfFrames are not equal.');\n }\n // create frame info object from per frame func\n const frameInfos = [];\n for (let j = 0; j < perFrameFuncGroupSequence.value.length; ++j) {\n frameInfos.push(\n getSegmentFrameInfo(perFrameFuncGroupSequence.value[j]));\n }\n\n // check frame infos\n const framePosPats = [];\n for (let ii = 0; ii < frameInfos.length; ++ii) {\n if (!includesPosPat(framePosPats, frameInfos[ii].imagePosPat)) {\n framePosPats.push(frameInfos[ii].imagePosPat);\n }\n // store orientation if needed, avoid multi\n if (typeof frameInfos[ii].imageOrientationPatient !== 'undefined') {\n if (typeof imageOrientationPatient === 'undefined') {\n imageOrientationPatient = frameInfos[ii].imageOrientationPatient;\n } else {\n if (!arraySortEquals(\n imageOrientationPatient, frameInfos[ii].imageOrientationPatient)) {\n throw new Error('Unsupported multi orientation dicom seg.');\n }\n }\n }\n // store spacing if needed, avoid multi\n if (typeof frameInfos[ii].spacing !== 'undefined') {\n if (typeof spacing === 'undefined') {\n spacing = frameInfos[ii].spacing;\n } else {\n if (!spacing.equals(frameInfos[ii].spacing)) {\n throw new Error('Unsupported multi resolution dicom seg.');\n }\n }\n }\n }\n\n // check spacing and orientation\n if (typeof spacing === 'undefined') {\n throw new Error('No spacing found for DICOM SEG');\n }\n if (spacing.length() !== 3) {\n throw new Error('Incomplete spacing found for DICOM SEG');\n }\n if (typeof imageOrientationPatient === 'undefined') {\n throw new Error('No imageOrientationPatient found for DICOM SEG');\n }\n if (imageOrientationPatient.length !== 6) {\n throw new Error('Incomplete imageOrientationPatient found for DICOM SEG');\n }\n\n // orientation\n const rowCosines = new Vector3D(\n parseFloat(imageOrientationPatient[0]),\n parseFloat(imageOrientationPatient[1]),\n parseFloat(imageOrientationPatient[2]));\n const colCosines = new Vector3D(\n parseFloat(imageOrientationPatient[3]),\n parseFloat(imageOrientationPatient[4]),\n parseFloat(imageOrientationPatient[5]));\n const normal = rowCosines.crossProduct(colCosines);\n /* eslint-disable @stylistic/js/array-element-newline */\n const orientationMatrix = new Matrix33([\n rowCosines.getX(), colCosines.getX(), normal.getX(),\n rowCosines.getY(), colCosines.getY(), normal.getY(),\n rowCosines.getZ(), colCosines.getZ(), normal.getZ()\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n\n // sort positions patient\n framePosPats.sort(getComparePosPat(orientationMatrix));\n\n const point3DFromArray = function (arr) {\n return new Point3D(arr[0], arr[1], arr[2]);\n };\n\n // frame origins\n const frameOrigins = [];\n for (let n = 0; n < framePosPats.length; ++n) {\n frameOrigins.push(point3DFromArray(framePosPats[n]));\n }\n\n // tmp geometry with correct spacing but only one slice\n const tmpGeometry = new Geometry(\n frameOrigins[0], size, spacing, orientationMatrix);\n\n // origin distance test\n // TODO: maybe use sliceSpacing / 10\n const isAboveEpsilon = function (value) {\n let res = value > REAL_WORLD_EPSILON;\n if (res) {\n // try larger epsilon\n res = value > REAL_WORLD_EPSILON * 10;\n if (!res) {\n // warn if epsilon < value < epsilon * 10\n logger.warn(\n 'Using larger real world epsilon in SEG pos pat adding'\n );\n } else {\n res = value > REAL_WORLD_EPSILON * 100;\n if (!res) {\n // warn if epsilon < value < epsilon * 100\n logger.warn(\n 'Using larger+ real world epsilon in SEG pos pat adding'\n );\n }\n }\n }\n return res;\n };\n\n // add possibly missing posPats\n const posPats = [];\n posPats.push(framePosPats[0]);\n let sliceIndex = 0;\n for (let g = 1; g < framePosPats.length; ++g) {\n ++sliceIndex;\n let index = new Index([0, 0, sliceIndex]);\n let point = tmpGeometry.indexToWorld(index).get3D();\n const frameOrigin = frameOrigins[g];\n // check if more pos pats are needed\n let dist = frameOrigin.getDistance(point);\n const distPrevious = dist;\n // TODO: good threshold?\n while (isAboveEpsilon(dist)) {\n logger.debug('Adding intermediate pos pats for DICOM seg at ' +\n point.toString());\n posPats.push([point.getX(), point.getY(), point.getZ()]);\n ++sliceIndex;\n index = new Index([0, 0, sliceIndex]);\n point = tmpGeometry.indexToWorld(index).get3D();\n dist = frameOrigin.getDistance(point);\n if (dist > distPrevious) {\n throw new Error(\n 'Test distance is increasing when adding intermediate pos pats');\n }\n }\n // add frame pos pat\n posPats.push(framePosPats[g]);\n }\n\n // as many slices as posPats\n const numberOfSlices = posPats.length;\n\n // final geometry\n const geometry = new Geometry(\n frameOrigins[0], size, spacing, orientationMatrix);\n const uids = ['0'];\n for (let m = 1; m < numberOfSlices; ++m) {\n geometry.appendOrigin(point3DFromArray(posPats[m]), m);\n uids.push(m.toString());\n }\n\n const getFindSegmentFunc = function (number) {\n return function (item) {\n return item.number === number;\n };\n };\n\n // create output buffer\n const mul = storeAsRGB ? 3 : 1;\n const buffer =\n // @ts-ignore\n new pixelBuffer.constructor(mul * sliceSize * numberOfSlices);\n buffer.fill(0);\n // merge frame buffers\n let sliceOffset = null;\n let frameOffset = null;\n for (let f = 0; f < frameInfos.length; ++f) {\n // get the slice index from the position in the posPat array\n sliceIndex = findIndexPosPat(posPats, frameInfos[f].imagePosPat);\n frameOffset = sliceSize * f;\n sliceOffset = sliceSize * sliceIndex;\n // get the frame display value\n const frameSegment = segments.find(\n getFindSegmentFunc(frameInfos[f].refSegmentNumber)\n );\n for (let l = 0; l < sliceSize; ++l) {\n if (pixelBuffer[frameOffset + l] !== 0) {\n const offset = mul * (sliceOffset + l);\n if (storeAsRGB) {\n buffer[offset] = frameSegment.displayRGBValue.r;\n buffer[offset + 1] = frameSegment.displayRGBValue.g;\n buffer[offset + 2] = frameSegment.displayRGBValue.b;\n } else {\n buffer[offset] = frameSegment.displayValue;\n }\n }\n }\n }\n\n // create image\n const image = new Image(geometry, buffer, uids);\n if (storeAsRGB) {\n image.setPhotometricInterpretation('RGB');\n }\n // meta information\n const meta = getDefaultDicomSegJson();\n const safeGet = function (key) {\n let res;\n const element = dataElements[key];\n if (typeof element !== 'undefined') {\n res = element.value[0];\n }\n return res;\n };\n // Study\n meta.StudyDate = safeGet('00080020');\n meta.StudyTime = safeGet('00080030');\n meta.StudyInstanceUID = safeGet('0020000D');\n meta.StudyID = safeGet('00200010');\n // Series\n meta.SeriesDate = safeGet('00080021');\n meta.SeriesTime = safeGet('00080031');\n meta.SeriesInstanceUID = safeGet('0020000E');\n meta.SeriesNumber = safeGet('00200011');\n // ReferringPhysicianName\n meta.ReferringPhysicianName = safeGet('00080090');\n // patient info\n meta.PatientName = safeGet('00100010');\n meta.PatientID = safeGet('00100020');\n meta.PatientBirthDate = safeGet('00100030');\n meta.PatientSex = safeGet('00100040');\n // Enhanced General Equipment Module\n meta.Manufacturer = safeGet('00080070');\n meta.ManufacturerModelName = safeGet('00081090');\n meta.DeviceSerialNumber = safeGet('00181000');\n meta.SoftwareVersions = safeGet('00181020');\n // dicom seg dimension\n meta.DimensionOrganizationSequence = dimension.organizations;\n meta.DimensionIndexSequence = dimension.indices;\n // custom\n meta.custom = {\n segments: segments,\n frameInfos: frameInfos,\n SOPInstanceUID: dataElements['00080018'].value[0]\n };\n\n // number of files: in this case equal to number slices,\n // used to calculate buffer size\n meta.numberOfFiles = numberOfSlices;\n // FrameOfReferenceUID (optional)\n const frameOfReferenceUID = dataElements['00200052'];\n if (frameOfReferenceUID) {\n meta.FrameOfReferenceUID = frameOfReferenceUID.value[0];\n }\n // LossyImageCompression (optional)\n const lossyImageCompression = dataElements['00282110'];\n if (lossyImageCompression) {\n meta.LossyImageCompression = lossyImageCompression.value[0];\n }\n\n image.setMeta(meta);\n\n return image;\n }\n\n /**\n * Convert a mask image into a DICOM segmentation object.\n *\n * @param {Image} image The mask image.\n * @param {MaskSegment[]} segments The mask segments.\n * @param {Image} sourceImage The source image.\n * @param {Object} [extraTags] Optional list of extra tags.\n * @returns {Object} A list of dicom elements.\n */\n toDicom(\n image,\n segments,\n sourceImage,\n extraTags\n ) {\n // original image tags\n const tags = image.getMeta();\n\n // use image segments if not provided as input\n if (segments === undefined) {\n segments = tags.segments;\n }\n\n const geometry = image.getGeometry();\n const size = geometry.getSize();\n\n // (not in meta)\n tags.Rows = size.get(1);\n tags.Columns = size.get(0);\n // update content tags\n const now = new Date();\n tags.ContentDate = getDicomDate(dateToDateObj(now));\n tags.ContentTime = getDicomTime(dateToTimeObj(now));\n\n // keep source image StudyInstanceUID\n if (sourceImage !== undefined) {\n tags.StudyInstanceUID = (sourceImage.getMeta()).StudyInstanceUID;\n }\n\n // segments\n const segmentItems = [];\n for (const segment of segments) {\n segmentItems.push(getDicomSegmentItem(segment));\n }\n tags.SegmentSequence = {\n value: segmentItems\n };\n\n // Shared Functional Groups Sequence\n tags.SharedFunctionalGroupsSequence = {\n value: [\n {\n PlaneOrientationSequence: {\n value: [getDicomPlaneOrientationItem(geometry.getOrientation())]\n },\n PixelMeasuresSequence: {\n value: [getDicomMeasureItem(geometry.getSpacing())]\n }\n }\n ]\n };\n\n // image buffer to multi frame\n const roiBuffers = createRoiBuffers(image, segments);\n\n const frameInfos = [];\n\n // flatten buffer array\n const finalBuffers = [];\n const referencedSOPs = [];\n for (const segment of segments) {\n const number40 = segment.number;\n const number4 = number40 - 1;\n // check if buffer has values\n if (roiBuffers[number4] === undefined) {\n continue;\n }\n const keys1 = Object.keys(roiBuffers[number4]);\n // revert slice order\n for (let k1 = keys1.length - 1; k1 >= 0; --k1) {\n const key1 = Number.parseInt(keys1[k1], 10);\n finalBuffers.push(roiBuffers[number4][key1]);\n // frame info\n const posPat = image.getGeometry().getOrigins()[key1];\n const posPatArray = [posPat.getX(), posPat.getY(), posPat.getZ()];\n const frameInfo = {\n dimIndex: [number40, keys1.length - k1],\n imagePosPat: posPatArray,\n refSegmentNumber: number40\n };\n // derivation image info\n if (sourceImage !== undefined) {\n const sourceGeometry = sourceImage.getGeometry();\n const sourceIndex = sourceGeometry.worldToIndex(\n new Point([posPat.getX(), posPat.getY(), posPat.getZ()])\n );\n frameInfo.derivationImages = [\n {\n sourceImages: [\n {\n referencedSOPInstanceUID:\n sourceImage.getImageUid(sourceIndex),\n referencedSOPClassUID:\n (sourceImage.getMeta()).SOPClassUID\n }\n ]\n }\n ];\n // store as tag\n referencedSOPs.push({\n ReferencedSOPInstanceUID:\n sourceImage.getImageUid(sourceIndex),\n ReferencedSOPClassUID:\n (sourceImage.getMeta()).SOPClassUID\n });\n }\n frameInfos.push(frameInfo);\n }\n }\n\n tags.NumberOfFrames = finalBuffers.length.toString();\n\n // frame infos\n const frameInfosTag = [];\n for (const frameInfo of frameInfos) {\n frameInfosTag.push(getDicomSegmentFrameInfoItem(frameInfo));\n }\n tags.PerFrameFunctionalGroupsSequence = {\n value: frameInfosTag\n };\n\n // also store referenced SOPs in ReferencedSeriesSequence\n if (sourceImage !== undefined) {\n const refSeriesTag = [];\n refSeriesTag.push({\n ReferencedInstanceSequence: {\n value: referencedSOPs\n },\n SeriesInstanceUID: (sourceImage.getMeta()).SeriesInstanceUID\n });\n tags.ReferencedSeriesSequence = {\n value: refSeriesTag\n };\n }\n\n // merge extra tags if provided\n if (extraTags !== undefined) {\n mergeTags(tags, extraTags);\n }\n\n // convert JSON to DICOM element object\n const dicomElements = getElementsFromJSONTags(tags);\n\n // pixel value length: divide by 8 to trigger binary write\n const sliceSize = size.getDimSize(2);\n const pixVl = (finalBuffers.length * sliceSize) / 8;\n const de = new DataElement('OB');\n de.tag = new Tag('7FE0', '0010');\n de.vl = pixVl;\n de.value = finalBuffers;\n dicomElements['7FE00010'] = de;\n\n return dicomElements;\n }\n\n} // class MaskFactory\n","import {Index} from '../math/index';\nimport {Point3D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {arrayContains} from '../utils/array';\nimport {getTypedArray} from '../dicom/dicomParser';\nimport {ListenerHandler} from '../utils/listen';\nimport {colourRange} from './iterator';\nimport {RescaleSlopeAndIntercept} from './rsi';\nimport {ImageFactory} from './imageFactory';\nimport {MaskFactory} from './maskFactory';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Geometry} from './geometry';\nimport {Matrix33} from '../math/matrix';\nimport {NumberRange} from '../math/stats';\nimport {DataElement} from '../dicom/dataElement';\nimport {RGB} from '../utils/colour';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get the slice index of an input slice into a volume geometry.\n *\n * @param {Geometry} volumeGeometry The volume geometry.\n * @param {Geometry} sliceGeometry The slice geometry.\n * @returns {Index} The index of the slice in the volume geomtry.\n */\nfunction getSliceIndex(volumeGeometry, sliceGeometry) {\n // possible time\n const timeId = sliceGeometry.getInitialTime();\n // index values\n const values = [];\n // x, y\n values.push(0);\n values.push(0);\n // z\n values.push(volumeGeometry.getSliceIndex(sliceGeometry.getOrigin(), timeId));\n // time\n if (typeof timeId !== 'undefined') {\n values.push(timeId);\n }\n // return index\n return new Index(values);\n}\n\n/**\n * Create an Image from DICOM elements.\n *\n * @param {Object} elements The DICOM elements.\n * @returns {Image} The Image object.\n */\nexport function createImage(elements) {\n const factory = new ImageFactory();\n return factory.create(\n elements,\n elements['7FE00010'].value[0],\n 1\n );\n}\n\n/**\n * Create a mask Image from DICOM elements.\n *\n * @param {Object} elements The DICOM elements.\n * @returns {Image} The mask Image object.\n */\nexport function createMaskImage(elements) {\n const factory = new MaskFactory();\n return factory.create(\n elements,\n elements['7FE00010'].value[0]\n );\n}\n\n/**\n * Image class.\n * Usable once created, optional are:\n * - rescale slope and intercept (default 1:0),\n * - photometric interpretation (default MONOCHROME2),\n * - planar configuration (default RGBRGB...).\n *\n * @example\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * // parse the dicom buffer\n * const dicomParser = new dwv.DicomParser();\n * dicomParser.parse(event.target.response);\n * // create the image object\n * const image = dwv.createImage(dicomParser.getDicomElements());\n * // result div\n * const div = document.getElementById('dwv');\n * // display the image size\n * const size = image.getGeometry().getSize();\n * div.appendChild(document.createTextNode(\n * 'Size: ' + size.toString() +\n * ' (should be 256,256,1)'));\n * // break line\n * div.appendChild(document.createElement('br'));\n * // display a pixel value\n * div.appendChild(document.createTextNode(\n * 'Pixel @ [128,40,0]: ' +\n * image.getRescaledValue(128,40,0) +\n * ' (should be 101)'));\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class Image {\n\n /**\n * Data geometry.\n *\n * @type {Geometry}\n */\n #geometry;\n\n /**\n * List of compatible typed arrays.\n *\n * @typedef {(\n * Uint8Array | Int8Array |\n * Uint16Array | Int16Array |\n * Uint32Array | Int32Array\n * )} TypedArray\n */\n\n /**\n * Data buffer.\n *\n * @type {TypedArray}\n */\n #buffer;\n\n /**\n * Image UIDs.\n *\n * @type {string[]}\n */\n #imageUids;\n\n /**\n * Constant rescale slope and intercept (default).\n *\n * @type {RescaleSlopeAndIntercept}\n */\n #rsi = new RescaleSlopeAndIntercept(1, 0);\n\n /**\n * Varying rescale slope and intercept.\n *\n * @type {RescaleSlopeAndIntercept[]}\n */\n #rsis = null;\n\n /**\n * Flag to know if the RSIs are all identity (1,0).\n *\n * @type {boolean}\n */\n #isIdentityRSI = true;\n\n /**\n * Flag to know if the RSIs are all equals.\n *\n * @type {boolean}\n */\n #isConstantRSI = true;\n\n /**\n * Photometric interpretation (MONOCHROME, RGB...).\n *\n * @type {string}\n */\n #photometricInterpretation = 'MONOCHROME2';\n\n /**\n * Planar configuration for RGB data (`0:RGBRGBRGBRGB...` or\n * `1:RRR...GGG...BBB...`).\n *\n * @type {number}\n */\n #planarConfiguration = 0;\n\n /**\n * Number of components.\n *\n * @type {number}\n */\n #numberOfComponents;\n\n /**\n * Meta information.\n *\n * @type {Object}\n */\n #meta = {};\n\n /**\n * Data range.\n *\n * @type {NumberRange}\n */\n #dataRange = null;\n\n /**\n * Rescaled data range.\n *\n * @type {NumberRange}\n */\n #rescaledDataRange = null;\n\n /**\n * Histogram.\n *\n * @type {Array}\n */\n #histogram = null;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {Geometry} geometry The geometry of the image.\n * @param {TypedArray} buffer The image data as a one dimensional buffer.\n * @param {string[]} [imageUids] An array of Uids indexed to slice number.\n */\n constructor(geometry, buffer, imageUids) {\n this.#geometry = geometry;\n this.#buffer = buffer;\n this.#imageUids = imageUids;\n\n this.#numberOfComponents = this.#buffer.length / (\n this.#geometry.getSize().getTotalSize());\n }\n\n /**\n * Get the image UID at a given index.\n *\n * @param {Index} [index] The index at which to get the id.\n * @returns {string} The UID.\n */\n getImageUid(index) {\n let uid = this.#imageUids[0];\n if (this.#imageUids.length !== 1 && typeof index !== 'undefined') {\n uid = this.#imageUids[this.getSecondaryOffset(index)];\n }\n return uid;\n }\n\n /**\n * Get the image origin for a image UID.\n *\n * @param {string} uid The UID.\n * @returns {Point3D|undefined} The origin.\n */\n getOriginForImageUid(uid) {\n let origin;\n const uidIndex = this.#imageUids.indexOf(uid);\n if (uidIndex !== -1) {\n const origins = this.getGeometry().getOrigins();\n origin = origins[uidIndex];\n }\n return origin;\n }\n\n /**\n * Check if this image includes the input uids.\n *\n * @param {string[]} uids UIDs to test for presence.\n * @returns {boolean} True if all uids are in this image uids.\n */\n containsImageUids(uids) {\n return arrayContains(this.#imageUids, uids);\n }\n\n /**\n * Get the geometry of the image.\n *\n * @returns {Geometry} The geometry.\n */\n getGeometry() {\n return this.#geometry;\n }\n\n /**\n * Get the data buffer of the image.\n *\n * @todo Dangerous...\n * @returns {TypedArray} The data buffer of the image.\n */\n getBuffer() {\n return this.#buffer;\n }\n\n /**\n * Can the image values be quantified?\n *\n * @returns {boolean} True if only one component.\n */\n canQuantify() {\n return this.getNumberOfComponents() === 1;\n }\n\n /**\n * Can window and level be applied to the data?\n *\n * @returns {boolean} True if the data is monochrome.\n * @deprecated Please use isMonochrome instead.\n */\n canWindowLevel() {\n return this.isMonochrome();\n }\n\n /**\n * Is the data monochrome.\n *\n * @returns {boolean} True if the data is monochrome.\n */\n isMonochrome() {\n return this.getPhotometricInterpretation()\n .match(/MONOCHROME/) !== null;\n }\n\n /**\n * Can the data be scrolled?\n *\n * @param {Matrix33} viewOrientation The view orientation.\n * @returns {boolean} True if the data has a third dimension greater than one\n * after applying the view orientation.\n */\n canScroll(viewOrientation) {\n const size = this.getGeometry().getSize();\n // also check the numberOfFiles in case we are in the middle of a load\n let nFiles = 1;\n if (typeof this.#meta.numberOfFiles !== 'undefined') {\n nFiles = this.#meta.numberOfFiles;\n }\n return size.canScroll(viewOrientation) || nFiles !== 1;\n }\n\n /**\n * Get the secondary offset max.\n *\n * @returns {number} The maximum offset.\n */\n #getSecondaryOffsetMax() {\n return this.#geometry.getSize().getTotalSize(2);\n }\n\n /**\n * Get the secondary offset: an offset that takes into account\n * the slice and above dimension numbers.\n *\n * @param {Index} index The index.\n * @returns {number} The offset.\n */\n getSecondaryOffset(index) {\n return this.#geometry.getSize().indexToOffset(index, 2);\n }\n\n /**\n * Get the rescale slope and intercept.\n *\n * @param {Index} [index] The index (only needed for non constant rsi).\n * @returns {RescaleSlopeAndIntercept} The rescale slope and intercept.\n */\n getRescaleSlopeAndIntercept(index) {\n let res = this.#rsi;\n if (!this.isConstantRSI()) {\n if (typeof index === 'undefined') {\n throw new Error('Cannot get non constant RSI with empty slice index.');\n }\n const offset = this.getSecondaryOffset(index);\n if (typeof this.#rsis[offset] !== 'undefined') {\n res = this.#rsis[offset];\n } else {\n logger.warn('undefined non constant rsi at ' + offset);\n }\n }\n return res;\n }\n\n /**\n * Get the rsi at a specified (secondary) offset.\n *\n * @param {number} offset The desired (secondary) offset.\n * @returns {RescaleSlopeAndIntercept} The coresponding rsi.\n */\n #getRescaleSlopeAndInterceptAtOffset(offset) {\n return this.#rsis[offset];\n }\n\n /**\n * Set the rescale slope and intercept.\n *\n * @param {RescaleSlopeAndIntercept} inRsi The input rescale\n * slope and intercept.\n * @param {number} [offset] The rsi offset (only needed for non constant rsi).\n */\n setRescaleSlopeAndIntercept(inRsi, offset) {\n // update identity flag\n this.#isIdentityRSI = this.#isIdentityRSI && inRsi.isID();\n // update constant flag\n if (!this.#isConstantRSI) {\n if (typeof offset === 'undefined') {\n throw new Error(\n 'Cannot store non constant RSI with empty slice index.');\n }\n this.#rsis.splice(offset, 0, inRsi);\n } else {\n if (!this.#rsi.equals(inRsi)) {\n if (typeof offset === 'undefined') {\n // no slice index, replace existing\n this.#rsi = inRsi;\n } else {\n // first non constant rsi\n this.#isConstantRSI = false;\n // switch to non constant mode\n this.#rsis = [];\n // initialise RSIs\n for (let i = 0, leni = this.#getSecondaryOffsetMax(); i < leni; ++i) {\n this.#rsis.push(this.#rsi);\n }\n // store\n this.#rsi = null;\n this.#rsis.splice(offset, 0, inRsi);\n }\n }\n }\n }\n\n /**\n * Are all the RSIs identity (1,0).\n *\n * @returns {boolean} True if they are.\n */\n isIdentityRSI() {\n return this.#isIdentityRSI;\n }\n\n /**\n * Are all the RSIs equal.\n *\n * @returns {boolean} True if they are.\n */\n isConstantRSI() {\n return this.#isConstantRSI;\n }\n\n /**\n * Get the photometricInterpretation of the image.\n *\n * @returns {string} The photometricInterpretation of the image.\n */\n getPhotometricInterpretation() {\n return this.#photometricInterpretation;\n }\n\n /**\n * Set the photometricInterpretation of the image.\n *\n * @param {string} interp The photometricInterpretation of the image.\n */\n setPhotometricInterpretation(interp) {\n this.#photometricInterpretation = interp;\n }\n\n /**\n * Get the planarConfiguration of the image.\n *\n * @returns {number} The planarConfiguration of the image.\n */\n getPlanarConfiguration() {\n return this.#planarConfiguration;\n }\n\n /**\n * Set the planarConfiguration of the image.\n *\n * @param {number} config The planarConfiguration of the image.\n */\n setPlanarConfiguration(config) {\n this.#planarConfiguration = config;\n }\n\n /**\n * Get the numberOfComponents of the image.\n *\n * @returns {number} The numberOfComponents of the image.\n */\n getNumberOfComponents() {\n return this.#numberOfComponents;\n }\n\n /**\n * Get the meta information of the image.\n *\n * @returns {Object} The meta information of the image.\n */\n getMeta() {\n return this.#meta;\n }\n\n /**\n * Set the meta information of the image.\n *\n * @param {Object} rhs The meta information of the image.\n */\n setMeta(rhs) {\n this.#meta = rhs;\n }\n\n /**\n * Get value at offset. Warning: No size check...\n *\n * @param {number} offset The desired offset.\n * @returns {number} The value at offset.\n */\n getValueAtOffset(offset) {\n return this.#buffer[offset];\n }\n\n /**\n * Get the offsets where the buffer equals the input value.\n * Loops through the whole volume, can get long for big data...\n *\n * @param {number|RGB} value The value to check.\n * @returns {number[]} The list of offsets.\n */\n getOffsets(value) {\n // value to array\n let bufferValue;\n if (typeof value === 'number') {\n if (this.#numberOfComponents !== 1) {\n throw new Error(\n 'Number of components is not 1 for getting single value.');\n }\n bufferValue = [value];\n } else if (typeof value.r !== 'undefined' &&\n typeof value.g !== 'undefined' &&\n typeof value.b !== 'undefined') {\n if (this.#numberOfComponents !== 3) {\n throw new Error(\n 'Number of components is not 3 for getting RGB value.');\n }\n bufferValue = [value.r, value.g, value.b];\n }\n\n // main loop\n const offsets = [];\n let equal;\n for (let i = 0; i < this.#buffer.length; i = i + this.#numberOfComponents) {\n equal = true;\n for (let j = 0; j < this.#numberOfComponents; ++j) {\n if (this.#buffer[i + j] !== bufferValue[j]) {\n equal = false;\n break;\n }\n }\n if (equal) {\n offsets.push(i);\n }\n }\n return offsets;\n }\n\n /**\n * Check if the input values are in the buffer.\n * Could loop through the whole volume, can get long for big data...\n *\n * @param {Array} values The values to check.\n * @returns {boolean[]} A list of booleans for each input value,\n * set to true if the value is present in the buffer.\n */\n hasValues(values) {\n // check input\n if (typeof values === 'undefined' ||\n values.length === 0) {\n return [];\n }\n // final array value\n const finalValues = [];\n for (let v1 = 0; v1 < values.length; ++v1) {\n if (this.#numberOfComponents === 1) {\n finalValues.push([values[v1]]);\n } else if (this.#numberOfComponents === 3) {\n finalValues.push([\n values[v1].r,\n values[v1].g,\n values[v1].b\n ]);\n }\n }\n // find callback\n let equalFunc;\n if (this.#numberOfComponents === 1) {\n equalFunc = function (a, b) {\n return a[0] === b[0];\n };\n } else if (this.#numberOfComponents === 3) {\n equalFunc = function (a, b) {\n return a[0] === b[0] &&\n a[1] === b[1] &&\n a[2] === b[2];\n };\n }\n const getEqualCallback = function (value) {\n return function (item) {\n return equalFunc(item, value);\n };\n };\n // main loop\n const res = new Array(values.length);\n res.fill(false);\n const valuesToFind = finalValues.slice();\n let equal;\n let indicesToRemove;\n for (let i = 0, leni = this.#buffer.length;\n i < leni; i = i + this.#numberOfComponents) {\n indicesToRemove = [];\n for (let v = 0; v < valuesToFind.length; ++v) {\n equal = true;\n // check value(s)\n for (let j = 0; j < this.#numberOfComponents; ++j) {\n if (this.#buffer[i + j] !== valuesToFind[v][j]) {\n equal = false;\n break;\n }\n }\n // if found, store answer and add to indices to remove\n if (equal) {\n const valIndex = finalValues.findIndex(\n getEqualCallback(valuesToFind[v]));\n res[valIndex] = true;\n indicesToRemove.push(v);\n }\n }\n // remove found values\n for (let r = 0; r < indicesToRemove.length; ++r) {\n valuesToFind.splice(indicesToRemove[r], 1);\n }\n // exit if no values to find\n if (valuesToFind.length === 0) {\n break;\n }\n }\n // return\n return res;\n }\n\n /**\n * Clone the image.\n *\n * @returns {Image} A clone of this image.\n */\n clone() {\n // clone the image buffer\n const clonedBuffer = this.#buffer.slice(0);\n // create the image copy\n const copy = new Image(this.getGeometry(), clonedBuffer, this.#imageUids);\n // copy the RSI(s)\n if (this.isConstantRSI()) {\n copy.setRescaleSlopeAndIntercept(this.getRescaleSlopeAndIntercept());\n } else {\n for (let i = 0; i < this.#getSecondaryOffsetMax(); ++i) {\n copy.setRescaleSlopeAndIntercept(\n this.#getRescaleSlopeAndInterceptAtOffset(i), i);\n }\n }\n // copy extras\n copy.setPhotometricInterpretation(this.getPhotometricInterpretation());\n copy.setPlanarConfiguration(this.getPlanarConfiguration());\n copy.setMeta(this.getMeta());\n // return\n return copy;\n }\n\n /**\n * Re-allocate buffer memory to an input size.\n *\n * @param {number} size The new size.\n */\n #realloc(size) {\n // save buffer\n let tmpBuffer = this.#buffer;\n // create new\n this.#buffer = getTypedArray(\n this.#buffer.BYTES_PER_ELEMENT * 8,\n this.#meta.IsSigned ? 1 : 0,\n size);\n if (this.#buffer === null) {\n throw new Error('Cannot reallocate data for image.');\n }\n // put old in new\n this.#buffer.set(tmpBuffer);\n // clean\n tmpBuffer = null;\n }\n\n /**\n * Append a slice to the image.\n *\n * @param {Image} rhs The slice to append.\n * @fires Image#imagegeometrychange\n */\n appendSlice(rhs) {\n // check input\n if (rhs === null) {\n throw new Error('Cannot append null slice');\n }\n const rhsSize = rhs.getGeometry().getSize();\n let size = this.#geometry.getSize();\n if (rhsSize.get(2) !== 1) {\n throw new Error('Cannot append more than one slice');\n }\n if (size.get(0) !== rhsSize.get(0)) {\n throw new Error('Cannot append a slice with different number of columns');\n }\n if (size.get(1) !== rhsSize.get(1)) {\n throw new Error('Cannot append a slice with different number of rows');\n }\n if (!this.#geometry.getOrientation().equals(\n rhs.getGeometry().getOrientation(), 0.0001)) {\n throw new Error('Cannot append a slice with different orientation');\n }\n if (this.#photometricInterpretation !==\n rhs.getPhotometricInterpretation()) {\n throw new Error(\n 'Cannot append a slice with different photometric interpretation');\n }\n // all meta should be equal\n for (const key in this.#meta) {\n if (key === 'windowPresets' || key === 'numberOfFiles' ||\n key === 'custom') {\n continue;\n }\n if (this.#meta[key] !== rhs.getMeta()[key]) {\n throw new Error('Cannot append a slice with different ' + key +\n ': ' + this.#meta[key] + ' != ' + rhs.getMeta()[key]);\n }\n }\n\n // update ranges\n const rhsRange = rhs.getDataRange();\n const range = this.getDataRange();\n this.#dataRange = {\n min: Math.min(rhsRange.min, range.min),\n max: Math.max(rhsRange.max, range.max),\n };\n const rhsResRange = rhs.getRescaledDataRange();\n const resRange = this.getRescaledDataRange();\n this.#rescaledDataRange = {\n min: Math.min(rhsResRange.min, resRange.min),\n max: Math.max(rhsResRange.max, resRange.max),\n };\n\n // possible time\n const timeId = rhs.getGeometry().getInitialTime();\n\n // append frame if needed\n let isNewFrame = false;\n if (typeof timeId !== 'undefined' &&\n !this.#geometry.hasSlicesAtTime(timeId)) {\n // update grometry\n this.appendFrame(timeId, rhs.getGeometry().getOrigin());\n // update size\n size = this.#geometry.getSize();\n // update flag\n isNewFrame = true;\n }\n\n // get slice index\n const index = getSliceIndex(this.#geometry, rhs.getGeometry());\n\n // calculate slice size\n const sliceSize = this.#numberOfComponents * size.getDimSize(2);\n\n // create full buffer if not done yet\n if (typeof this.#meta.numberOfFiles === 'undefined') {\n throw new Error('Missing number of files for buffer manipulation.');\n }\n const fullBufferSize = sliceSize * this.#meta.numberOfFiles;\n if (this.#buffer.length !== fullBufferSize) {\n this.#realloc(fullBufferSize);\n }\n\n // slice index\n const sliceIndex = index.get(2);\n\n // slice index including possible 4D\n let fullSliceIndex = sliceIndex;\n if (typeof timeId !== 'undefined') {\n fullSliceIndex +=\n this.#geometry.getCurrentNumberOfSlicesBeforeTime(timeId);\n }\n // offset of the input slice\n const indexOffset = fullSliceIndex * sliceSize;\n const maxOffset =\n this.#geometry.getCurrentTotalNumberOfSlices() * sliceSize;\n // move content if needed\n if (indexOffset < maxOffset) {\n this.#buffer.set(\n this.#buffer.subarray(indexOffset, maxOffset),\n indexOffset + sliceSize\n );\n }\n // add new slice content\n this.#buffer.set(rhs.getBuffer(), indexOffset);\n\n // update geometry\n if (!isNewFrame) {\n this.#geometry.appendOrigin(\n rhs.getGeometry().getOrigin(), sliceIndex, timeId);\n }\n // update rsi\n // (rhs should just have one rsi)\n this.setRescaleSlopeAndIntercept(\n rhs.getRescaleSlopeAndIntercept(), fullSliceIndex);\n\n // current number of images\n const numberOfImages = this.#imageUids.length;\n\n // insert sop instance UIDs\n this.#imageUids.splice(fullSliceIndex, 0, rhs.getImageUid());\n\n // update window presets\n if (typeof this.#meta.windowPresets !== 'undefined') {\n const windowPresets = this.#meta.windowPresets;\n const rhsPresets = rhs.getMeta().windowPresets;\n const keys = Object.keys(rhsPresets);\n let pkey = null;\n for (let i = 0; i < keys.length; ++i) {\n pkey = keys[i];\n const rhsPreset = rhsPresets[pkey];\n const windowPreset = windowPresets[pkey];\n if (typeof windowPreset !== 'undefined') {\n // if not set or false, check perslice\n if (typeof windowPreset.perslice === 'undefined' ||\n windowPreset.perslice === false) {\n // if different preset.wl, mark it as perslice\n if (!windowPreset.wl[0].equals(rhsPreset.wl[0])) {\n windowPreset.perslice = true;\n // fill wl array with copy of wl[0]\n // (loop on number of images minus the existing one)\n for (let j = 0; j < numberOfImages - 1; ++j) {\n windowPreset.wl.push(windowPreset.wl[0]);\n }\n }\n }\n // store (first) rhs preset.wl if needed\n if (typeof windowPreset.perslice !== 'undefined' &&\n windowPreset.perslice === true) {\n windowPresets[pkey].wl.splice(\n fullSliceIndex, 0, rhsPreset.wl[0]);\n }\n } else {\n // if not defined (it should be), store all\n windowPresets[pkey] = rhsPresets[pkey];\n }\n }\n }\n /**\n * Image geometry change event.\n *\n * @event Image#imagegeometrychange\n * @type {object}\n */\n this.#fireEvent({type: 'imagegeometrychange'});\n }\n\n /**\n * Append a frame buffer to the image.\n *\n * @param {object} frameBuffer The frame buffer to append.\n * @param {number} frameIndex The frame index.\n */\n appendFrameBuffer(frameBuffer, frameIndex) {\n // create full buffer if not done yet\n const size = this.#geometry.getSize();\n const frameSize = this.#numberOfComponents * size.getDimSize(2);\n if (typeof this.#meta.numberOfFiles === 'undefined') {\n throw new Error('Missing number of files for frame buffer manipulation.');\n }\n const fullBufferSize = frameSize * this.#meta.numberOfFiles;\n if (this.#buffer.length !== fullBufferSize) {\n this.#realloc(fullBufferSize);\n }\n // check index\n if (frameIndex >= this.#meta.numberOfFiles) {\n logger.warn('Ignoring frame at index ' + frameIndex +\n ' (size: ' + this.#meta.numberOfFiles + ')');\n return;\n }\n // append\n this.#buffer.set(frameBuffer, frameSize * frameIndex);\n // update geometry\n this.appendFrame(frameIndex, new Point3D(0, 0, 0));\n }\n\n /**\n * Append a frame to the image.\n *\n * @param {number} time The frame time value.\n * @param {Point3D} origin The origin of the frame.\n */\n appendFrame(time, origin) {\n this.#geometry.appendFrame(origin, time);\n this.#fireEvent({type: 'appendframe'});\n // memory will be updated at the first appendSlice or appendFrameBuffer\n }\n\n /**\n * Get the data range.\n *\n * @returns {NumberRange} The data range.\n */\n getDataRange() {\n if (!this.#dataRange) {\n this.#dataRange = this.calculateDataRange();\n }\n return this.#dataRange;\n }\n\n /**\n * Get the rescaled data range.\n *\n * @returns {NumberRange} The rescaled data range.\n */\n getRescaledDataRange() {\n if (!this.#rescaledDataRange) {\n this.#rescaledDataRange = this.calculateRescaledDataRange();\n }\n return this.#rescaledDataRange;\n }\n\n /**\n * Get the histogram.\n *\n * @returns {Array} The histogram.\n */\n getHistogram() {\n if (!this.#histogram) {\n const res = this.calculateHistogram();\n this.#dataRange = res.dataRange;\n this.#rescaledDataRange = res.rescaledDataRange;\n this.#histogram = res.histogram;\n }\n return this.#histogram;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n // ****************************************\n // image data modifiers... carefull...\n // ****************************************\n\n /**\n * Set the inner buffer values at given offsets.\n *\n * @param {number[]} offsets List of offsets where to set the data.\n * @param {number|RGB} value The value to set at the given offsets.\n * @fires Image#imagecontentchange\n */\n setAtOffsets(offsets, value) {\n // value to array\n let bufferValue;\n if (typeof value === 'number') {\n if (this.#numberOfComponents !== 1) {\n throw new Error(\n 'Number of components is not 1 for setting single value.');\n }\n bufferValue = [value];\n } else if (typeof value.r !== 'undefined' &&\n typeof value.g !== 'undefined' &&\n typeof value.b !== 'undefined') {\n if (this.#numberOfComponents !== 3) {\n throw new Error(\n 'Number of components is not 3 for setting RGB value.');\n }\n bufferValue = [value.r, value.g, value.b];\n }\n\n let offset;\n for (let i = 0, leni = offsets.length; i < leni; ++i) {\n offset = offsets[i];\n for (let j = 0; j < this.#numberOfComponents; ++j) {\n this.#buffer[offset + j] = bufferValue[j];\n }\n }\n // fire imagecontentchange\n this.#fireEvent({type: 'imagecontentchange'});\n }\n\n /**\n * Set the inner buffer values at given offsets.\n *\n * @param {number[][]} offsetsLists List of offset lists where\n * to set the data.\n * @param {RGB} value The value to set at the given offsets.\n * @returns {Array} A list of objects representing the original values before\n * replacing them.\n * @fires Image#imagecontentchange\n */\n setAtOffsetsAndGetOriginals(offsetsLists, value) {\n const originalColoursLists = [];\n\n // update and store\n for (let j = 0; j < offsetsLists.length; ++j) {\n const offsets = offsetsLists[j];\n // first colour\n let offset = offsets[0] * 3;\n let previousColour = {\n r: this.#buffer[offset],\n g: this.#buffer[offset + 1],\n b: this.#buffer[offset + 2]\n };\n // original value storage\n const originalColours = [];\n originalColours.push({\n index: 0,\n colour: previousColour\n });\n for (let i = 0; i < offsets.length; ++i) {\n offset = offsets[i] * 3;\n const currentColour = {\n r: this.#buffer[offset],\n g: this.#buffer[offset + 1],\n b: this.#buffer[offset + 2]\n };\n // check if new colour\n if (previousColour.r !== currentColour.r ||\n previousColour.g !== currentColour.g ||\n previousColour.b !== currentColour.b) {\n // store new colour\n originalColours.push({\n index: i,\n colour: currentColour\n });\n previousColour = currentColour;\n }\n // write update colour\n this.#buffer[offset] = value.r;\n this.#buffer[offset + 1] = value.g;\n this.#buffer[offset + 2] = value.b;\n }\n originalColoursLists.push(originalColours);\n }\n // fire imagecontentchange\n this.#fireEvent({type: 'imagecontentchange'});\n return originalColoursLists;\n }\n\n /**\n * Set the inner buffer values at given offsets.\n *\n * @param {number[][]} offsetsLists List of offset lists\n * where to set the data.\n * @param {RGB|Array} value The value to set at the given offsets.\n * @fires Image#imagecontentchange\n */\n setAtOffsetsWithIterator(offsetsLists, value) {\n for (let j = 0; j < offsetsLists.length; ++j) {\n const offsets = offsetsLists[j];\n let iterator;\n if (Array.isArray(value)) {\n // input value is a list of iterators\n // created by setAtOffsetsAndGetOriginals\n iterator = colourRange(\n value[j], offsets.length);\n } else if (typeof value.r !== 'undefined' &&\n typeof value.g !== 'undefined' &&\n typeof value.b !== 'undefined') {\n // input value is a simple color\n iterator = colourRange(\n [{index: 0, colour: value}], offsets.length);\n }\n\n // set values\n let ival = iterator.next();\n while (!ival.done) {\n const offset = offsets[ival.index] * 3;\n this.#buffer[offset] = ival.value.r;\n this.#buffer[offset + 1] = ival.value.g;\n this.#buffer[offset + 2] = ival.value.b;\n ival = iterator.next();\n }\n }\n /**\n * Image change event.\n *\n * @event Image#imagecontentchange\n * @type {object}\n */\n this.#fireEvent({type: 'imagecontentchange'});\n }\n\n /**\n * Get the value of the image at a specific coordinate.\n *\n * @param {number} i The X index.\n * @param {number} j The Y index.\n * @param {number} k The Z index.\n * @param {number} f The frame number.\n * @returns {number} The value at the desired position.\n * Warning: No size check...\n */\n getValue(i, j, k, f) {\n const frame = (f || 0);\n const index = new Index([i, j, k, frame]);\n return this.getValueAtOffset(\n this.getGeometry().getSize().indexToOffset(index));\n }\n\n /**\n * Get the value of the image at a specific index.\n *\n * @param {Index} index The index.\n * @returns {number} The value at the desired position.\n * Warning: No size check...\n */\n getValueAtIndex(index) {\n return this.getValueAtOffset(\n this.getGeometry().getSize().indexToOffset(index));\n }\n\n /**\n * Get the rescaled value of the image at a specific position.\n *\n * @param {number} i The X index.\n * @param {number} j The Y index.\n * @param {number} k The Z index.\n * @param {number} f The frame number.\n * @returns {number} The rescaled value at the desired position.\n * Warning: No size check...\n */\n getRescaledValue(i, j, k, f) {\n if (typeof f === 'undefined') {\n f = 0;\n }\n let val = this.getValue(i, j, k, f);\n if (!this.isIdentityRSI()) {\n if (this.isConstantRSI()) {\n val = this.getRescaleSlopeAndIntercept().apply(val);\n } else {\n const values = [i, j, k, f];\n const index = new Index(values);\n val = this.getRescaleSlopeAndIntercept(index).apply(val);\n }\n }\n return val;\n }\n\n /**\n * Get the rescaled value of the image at a specific index.\n *\n * @param {Index} index The index.\n * @returns {number} The rescaled value at the desired position.\n * Warning: No size check...\n */\n getRescaledValueAtIndex(index) {\n return this.getRescaledValueAtOffset(\n this.getGeometry().getSize().indexToOffset(index)\n );\n }\n\n /**\n * Get the rescaled value of the image at a specific offset.\n *\n * @param {number} offset The desired offset.\n * @returns {number} The rescaled value at the desired offset.\n * Warning: No size check...\n */\n getRescaledValueAtOffset(offset) {\n let val = this.getValueAtOffset(offset);\n if (!this.isIdentityRSI()) {\n if (this.isConstantRSI()) {\n val = this.getRescaleSlopeAndIntercept().apply(val);\n } else {\n const index = this.getGeometry().getSize().offsetToIndex(offset);\n val = this.getRescaleSlopeAndIntercept(index).apply(val);\n }\n }\n return val;\n }\n\n /**\n * Calculate the data range of the image.\n * WARNING: for speed reasons, only calculated on the first frame...\n *\n * @returns {object} The range {min, max}.\n */\n calculateDataRange() {\n let min = this.getValueAtOffset(0);\n let max = min;\n let value = 0;\n const size = this.getGeometry().getSize();\n let leni = size.getTotalSize();\n // max to 3D\n if (size.length() >= 3) {\n leni = size.getDimSize(3);\n }\n for (let i = 0; i < leni; ++i) {\n value = this.getValueAtOffset(i);\n if (value > max) {\n max = value;\n }\n if (value < min) {\n min = value;\n }\n }\n // return\n return {min: min, max: max};\n }\n\n /**\n * Calculate the rescaled data range of the image.\n * WARNING: for speed reasons, only calculated on the first frame...\n *\n * @returns {object} The range {min, max}.\n */\n calculateRescaledDataRange() {\n if (this.isIdentityRSI()) {\n return this.getDataRange();\n } else if (this.isConstantRSI()) {\n const range = this.getDataRange();\n const resmin = this.getRescaleSlopeAndIntercept().apply(range.min);\n const resmax = this.getRescaleSlopeAndIntercept().apply(range.max);\n return {\n min: ((resmin < resmax) ? resmin : resmax),\n max: ((resmin > resmax) ? resmin : resmax)\n };\n } else {\n let rmin = this.getRescaledValueAtOffset(0);\n let rmax = rmin;\n let rvalue = 0;\n const size = this.getGeometry().getSize();\n let leni = size.getTotalSize();\n // max to 3D\n if (size.length() === 3) {\n leni = size.getDimSize(3);\n }\n for (let i = 0; i < leni; ++i) {\n rvalue = this.getRescaledValueAtOffset(i);\n if (rvalue > rmax) {\n rmax = rvalue;\n }\n if (rvalue < rmin) {\n rmin = rvalue;\n }\n }\n // return\n return {min: rmin, max: rmax};\n }\n }\n\n /**\n * Calculate the histogram of the image.\n *\n * @returns {object} The histogram, data range and rescaled data range.\n */\n calculateHistogram() {\n const size = this.getGeometry().getSize();\n const histo = [];\n let min = this.getValueAtOffset(0);\n let max = min;\n let value = 0;\n let rmin = this.getRescaledValueAtOffset(0);\n let rmax = rmin;\n let rvalue = 0;\n for (let i = 0, leni = size.getTotalSize(); i < leni; ++i) {\n value = this.getValueAtOffset(i);\n if (value > max) {\n max = value;\n }\n if (value < min) {\n min = value;\n }\n rvalue = this.getRescaledValueAtOffset(i);\n if (rvalue > rmax) {\n rmax = rvalue;\n }\n if (rvalue < rmin) {\n rmin = rvalue;\n }\n histo[rvalue] = (histo[rvalue] || 0) + 1;\n }\n // set data range\n const dataRange = {min: min, max: max};\n const rescaledDataRange = {min: rmin, max: rmax};\n // generate data for plotting\n const histogram = [];\n for (let b = rmin; b <= rmax; ++b) {\n histogram.push([b, (histo[b] || 0)]);\n }\n // return\n return {\n dataRange: dataRange,\n rescaledDataRange: rescaledDataRange,\n histogram: histogram\n };\n }\n\n /**\n * Convolute the image with a given 2D kernel.\n *\n * Note: Uses raw buffer values.\n *\n * @param {number[]} weights The weights of the 2D kernel as a 3x3 matrix.\n * @returns {Image} The convoluted image.\n */\n convolute2D(weights) {\n if (weights.length !== 9) {\n throw new Error(\n 'The convolution matrix does not have a length of 9; it has ' +\n weights.length);\n }\n\n const newImage = this.clone();\n const newBuffer = newImage.getBuffer();\n\n const imgSize = this.getGeometry().getSize();\n const dimOffset = imgSize.getDimSize(2) * this.getNumberOfComponents();\n for (let k = 0; k < imgSize.get(2); ++k) {\n this.convoluteBuffer(weights, newBuffer, k * dimOffset);\n }\n\n return newImage;\n }\n\n /**\n * Convolute an image buffer with a given 2D kernel.\n *\n * Note: Uses raw buffer values.\n *\n * @param {number[]} weights The weights of the 2D kernel as a 3x3 matrix.\n * @param {TypedArray} buffer The buffer to convolute.\n * @param {number} startOffset The index to start at.\n */\n convoluteBuffer(\n weights, buffer, startOffset) {\n const imgSize = this.getGeometry().getSize();\n const ncols = imgSize.get(0);\n const nrows = imgSize.get(1);\n const ncomp = this.getNumberOfComponents();\n\n // number of component and planar configuration vars\n let factor = 1;\n let componentOffset = 1;\n if (ncomp === 3) {\n if (this.getPlanarConfiguration() === 0) {\n factor = 3;\n } else {\n componentOffset = imgSize.getDimSize(2);\n }\n }\n\n // allow special indent for matrices\n /*jshint indent:false */\n\n // default weight offset matrix\n const wOff = [];\n wOff[0] = (-ncols - 1) * factor;\n wOff[1] = (-ncols) * factor;\n wOff[2] = (-ncols + 1) * factor;\n wOff[3] = -factor;\n wOff[4] = 0;\n wOff[5] = 1 * factor;\n wOff[6] = (ncols - 1) * factor;\n wOff[7] = (ncols) * factor;\n wOff[8] = (ncols + 1) * factor;\n\n // border weight offset matrices\n // borders are extended (see http://en.wikipedia.org/wiki/Kernel_%28image_processing%29)\n\n // i=0, j=0\n const wOff00 = [];\n wOff00[0] = wOff[4]; wOff00[1] = wOff[4]; wOff00[2] = wOff[5];\n wOff00[3] = wOff[4]; wOff00[4] = wOff[4]; wOff00[5] = wOff[5];\n wOff00[6] = wOff[7]; wOff00[7] = wOff[7]; wOff00[8] = wOff[8];\n // i=0, j=*\n const wOff0x = [];\n wOff0x[0] = wOff[1]; wOff0x[1] = wOff[1]; wOff0x[2] = wOff[2];\n wOff0x[3] = wOff[4]; wOff0x[4] = wOff[4]; wOff0x[5] = wOff[5];\n wOff0x[6] = wOff[7]; wOff0x[7] = wOff[7]; wOff0x[8] = wOff[8];\n // i=0, j=nrows\n const wOff0n = [];\n wOff0n[0] = wOff[1]; wOff0n[1] = wOff[1]; wOff0n[2] = wOff[2];\n wOff0n[3] = wOff[4]; wOff0n[4] = wOff[4]; wOff0n[5] = wOff[5];\n wOff0n[6] = wOff[4]; wOff0n[7] = wOff[4]; wOff0n[8] = wOff[5];\n\n // i=*, j=0\n const wOffx0 = [];\n wOffx0[0] = wOff[3]; wOffx0[1] = wOff[4]; wOffx0[2] = wOff[5];\n wOffx0[3] = wOff[3]; wOffx0[4] = wOff[4]; wOffx0[5] = wOff[5];\n wOffx0[6] = wOff[6]; wOffx0[7] = wOff[7]; wOffx0[8] = wOff[8];\n // i=*, j=* -> wOff\n // i=*, j=nrows\n const wOffxn = [];\n wOffxn[0] = wOff[0]; wOffxn[1] = wOff[1]; wOffxn[2] = wOff[2];\n wOffxn[3] = wOff[3]; wOffxn[4] = wOff[4]; wOffxn[5] = wOff[5];\n wOffxn[6] = wOff[3]; wOffxn[7] = wOff[4]; wOffxn[8] = wOff[5];\n\n // i=ncols, j=0\n const wOffn0 = [];\n wOffn0[0] = wOff[3]; wOffn0[1] = wOff[4]; wOffn0[2] = wOff[4];\n wOffn0[3] = wOff[3]; wOffn0[4] = wOff[4]; wOffn0[5] = wOff[4];\n wOffn0[6] = wOff[6]; wOffn0[7] = wOff[7]; wOffn0[8] = wOff[7];\n // i=ncols, j=*\n const wOffnx = [];\n wOffnx[0] = wOff[0]; wOffnx[1] = wOff[1]; wOffnx[2] = wOff[1];\n wOffnx[3] = wOff[3]; wOffnx[4] = wOff[4]; wOffnx[5] = wOff[4];\n wOffnx[6] = wOff[6]; wOffnx[7] = wOff[7]; wOffnx[8] = wOff[7];\n // i=ncols, j=nrows\n const wOffnn = [];\n wOffnn[0] = wOff[0]; wOffnn[1] = wOff[1]; wOffnn[2] = wOff[1];\n wOffnn[3] = wOff[3]; wOffnn[4] = wOff[4]; wOffnn[5] = wOff[4];\n wOffnn[6] = wOff[3]; wOffnn[7] = wOff[4]; wOffnn[8] = wOff[4];\n\n // restore indent for rest of method\n /*jshint indent:4 */\n\n // loop vars\n let pixelOffset = startOffset;\n let newValue = 0;\n let wOffFinal = [];\n for (let c = 0; c < ncomp; ++c) {\n // component offset\n pixelOffset += c * componentOffset;\n for (let j = 0; j < nrows; ++j) {\n for (let i = 0; i < ncols; ++i) {\n wOffFinal = wOff;\n // special border cases\n if (i === 0 && j === 0) {\n wOffFinal = wOff00;\n } else if (i === 0 && j === (nrows - 1)) {\n wOffFinal = wOff0n;\n } else if (i === (ncols - 1) && j === 0) {\n wOffFinal = wOffn0;\n } else if (i === (ncols - 1) && j === (nrows - 1)) {\n wOffFinal = wOffnn;\n } else if (i === 0 && j !== (nrows - 1) && j !== 0) {\n wOffFinal = wOff0x;\n } else if (i === (ncols - 1) && j !== (nrows - 1) && j !== 0) {\n wOffFinal = wOffnx;\n } else if (i !== 0 && i !== (ncols - 1) && j === 0) {\n wOffFinal = wOffx0;\n } else if (i !== 0 && i !== (ncols - 1) && j === (nrows - 1)) {\n wOffFinal = wOffxn;\n }\n // calculate the weighed sum of the source image pixels that\n // fall under the convolution matrix\n newValue = 0;\n for (let wi = 0; wi < 9; ++wi) {\n newValue += this.getValueAtOffset(\n pixelOffset + wOffFinal[wi]) * weights[wi];\n }\n buffer[pixelOffset] = newValue;\n // increment pixel offset\n pixelOffset += factor;\n }\n }\n }\n }\n\n /**\n * Transform an image using a specific operator.\n * WARNING: no size check!\n *\n * @param {Function} operator The operator to use when transforming.\n * @returns {Image} The transformed image.\n * Note: Uses the raw buffer values.\n */\n transform(operator) {\n const newImage = this.clone();\n const newBuffer = newImage.getBuffer();\n for (let i = 0, leni = newBuffer.length; i < leni; ++i) {\n newBuffer[i] = operator(newImage.getValueAtOffset(i));\n }\n return newImage;\n }\n\n /**\n * Compose this image with another one and using a specific operator.\n * WARNING: no size check!\n *\n * @param {Image} rhs The image to compose with.\n * @param {Function} operator The operator to use when composing.\n * @returns {Image} The composed image.\n * Note: Uses the raw buffer values.\n */\n compose(rhs, operator) {\n const newImage = this.clone();\n const newBuffer = newImage.getBuffer();\n for (let i = 0, leni = newBuffer.length; i < leni; ++i) {\n // using the operator on the local buffer, i.e. the\n // latest (not original) data\n newBuffer[i] = Math.floor(\n operator(this.getValueAtOffset(i), rhs.getValueAtOffset(i))\n );\n }\n return newImage;\n }\n\n} // class Image\n","import {View} from './view';\nimport {luts} from './luts';\nimport {\n WindowLevel,\n defaultPresets\n} from './windowLevel';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {DataElement} from '../dicom/dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * {@link View} factory.\n */\nexport class ViewFactory {\n\n /**\n * Get an View object from the read DICOM file.\n *\n * @param {Object} dataElements The DICOM tags.\n * @param {Image} image The associated image.\n * @returns {View} The new View.\n */\n create(dataElements, image) {\n // view\n const view = new View(image);\n\n // default color map\n if (image.getPhotometricInterpretation() === 'MONOCHROME1') {\n view.setColourMap('invPlain');\n } else if (image.getPhotometricInterpretation() === 'PALETTE COLOR') {\n if (typeof luts['palette'] !== 'undefined') {\n view.setColourMap('palette');\n } else {\n logger.warn('Cannot find Palette lut');\n }\n }\n\n // window level presets\n let windowPresets = {};\n // image presets\n if (typeof image.getMeta().windowPresets !== 'undefined') {\n windowPresets = image.getMeta().windowPresets;\n }\n // min/max\n // Not filled yet since it is stil too costly to calculate min/max\n // for each slice... It will be filled at first use\n // (see view.setWindowLevelPreset).\n // Order is important, if no wl from DICOM, this will be the default.\n windowPresets.minmax = {name: 'minmax'};\n // optional modality presets\n if (typeof defaultPresets !== 'undefined') {\n const modality = image.getMeta().Modality;\n for (const key in defaultPresets[modality]) {\n const preset = defaultPresets[modality][key];\n windowPresets[key] = {\n wl: [new WindowLevel(preset.center, preset.width)],\n name: key\n };\n }\n }\n\n // store\n view.setWindowPresets(windowPresets);\n\n // initialise the view\n view.init();\n\n return view;\n }\n\n} // class ViewFactory\n","import {Index} from '../math/index';\nimport {ModalityLut} from './modalityLut';\nimport {WindowLut} from './windowLut';\nimport {luts} from './luts';\nimport {VoiLut} from './voiLut';\nimport {WindowLevel} from './windowLevel';\nimport {generateImageDataMonochrome} from './viewMonochrome';\nimport {generateImageDataPaletteColor} from './viewPaletteColor';\nimport {generateImageDataRgb} from './viewRgb';\nimport {generateImageDataYbrFull} from './viewYbrFull';\nimport {ViewFactory} from './viewFactory';\nimport {getSliceIterator} from '../image/iterator';\nimport {ListenerHandler} from '../utils/listen';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {RescaleSlopeAndIntercept} from './rsi';\nimport {ColourMap} from './luts';\nimport {Matrix33} from '../math/matrix';\nimport {\n Point,\n Point3D\n} from '../math/point';\nimport {DataElement} from '../dicom/dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * List of view event names.\n *\n * @type {string[]}\n */\nexport const viewEventNames = [\n 'wlchange',\n 'wlpresetadd',\n 'colourmapchange',\n 'positionchange',\n 'opacitychange',\n 'alphafuncchange'\n];\n\n/**\n * Create a View from DICOM elements and image.\n *\n * @param {Object} elements The DICOM elements.\n * @param {Image} image The associated image.\n * @returns {View} The View object.\n */\nexport function createView(elements, image) {\n const factory = new ViewFactory();\n return factory.create(elements, image);\n}\n\n/**\n * View class.\n *\n * Need to set the window lookup table once created\n * (either directly or with helper methods).\n *\n * @example\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * // parse the dicom buffer\n * const dicomParser = new dwv.DicomParser();\n * dicomParser.parse(event.target.response);\n * // create the image object\n * const image = dwv.createImage(dicomParser.getDicomElements());\n * // create the view\n * const view = dwv.createView(dicomParser.getDicomElements(), image);\n * // setup canvas\n * const canvas = document.createElement('canvas');\n * canvas.width = 256;\n * canvas.height = 256;\n * const ctx = canvas.getContext(\"2d\");\n * // update the image data\n * const imageData = ctx.createImageData(256, 256);\n * view.generateImageData(imageData);\n * ctx.putImageData(imageData, 0, 0);\n * // update html\n * const div = document.getElementById('dwv');\n * div.appendChild(canvas);;\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class View {\n\n /**\n * The associated image.\n *\n * @type {Image}\n */\n #image;\n\n /**\n * Window lookup tables, indexed per Rescale Slope and Intercept (RSI).\n *\n * @type {WindowLut}\n */\n #windowLut;\n\n /**\n * Flag for image constant RSI.\n *\n * @type {boolean}\n */\n #isConstantRSI;\n\n /**\n * Window presets.\n * Minmax will be filled at first use (see view.setWindowLevelPreset).\n *\n * @type {object}\n */\n #windowPresets = {minmax: {name: 'minmax'}};\n\n /**\n * Current window preset name.\n *\n * @type {string}\n */\n #currentPresetName = null;\n\n /**\n * Current window level.\n *\n * @type {WindowLevel}\n */\n #currentWl;\n\n /**\n * Colour map name.\n *\n * @type {string}\n */\n #colourMapName = 'plain';\n\n /**\n * Current position as a Point.\n * Store position and not index to stay geometry independent.\n *\n * @type {Point}\n */\n #currentPosition = null;\n\n /**\n * View orientation. Undefined will use the original slice ordering.\n *\n * @type {Matrix33}\n */\n #orientation;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {Image} image The associated image.\n */\n constructor(image) {\n this.#image = image;\n\n // listen to appendframe event to update the current position\n // to add the extra dimension\n this.#image.addEventListener('appendframe', () => {\n // update current position if first appendFrame\n const index = this.getCurrentIndex();\n if (index.length() === 3) {\n // add dimension\n const values = index.getValues();\n values.push(0);\n this.setCurrentIndex(new Index(values));\n }\n });\n }\n\n /**\n * Get the associated image.\n *\n * @returns {Image} The associated image.\n */\n getImage() {\n return this.#image;\n }\n\n /**\n * Set the associated image.\n *\n * @param {Image} inImage The associated image.\n */\n setImage(inImage) {\n this.#image = inImage;\n }\n\n /**\n * Get the view orientation.\n *\n * @returns {Matrix33} The orientation matrix.\n */\n getOrientation() {\n return this.#orientation;\n }\n\n /**\n * Set the view orientation.\n *\n * @param {Matrix33} mat33 The orientation matrix.\n */\n setOrientation(mat33) {\n this.#orientation = mat33;\n }\n\n /**\n * Initialise the view: set initial index.\n */\n init() {\n this.setInitialIndex();\n }\n\n /**\n * Set the initial index to the middle position.\n */\n setInitialIndex() {\n const geometry = this.#image.getGeometry();\n const size = geometry.getSize();\n const values = new Array(size.length());\n values.fill(0);\n // middle\n values[0] = Math.floor(size.get(0) / 2);\n values[1] = Math.floor(size.get(1) / 2);\n values[2] = Math.floor(size.get(2) / 2);\n this.setCurrentIndex(new Index(values), true);\n }\n\n /**\n * Get the milliseconds per frame from frame rate.\n *\n * @param {number} recommendedDisplayFrameRate Recommended Display Frame Rate.\n * @returns {number} The milliseconds per frame.\n */\n getPlaybackMilliseconds(recommendedDisplayFrameRate) {\n if (!recommendedDisplayFrameRate) {\n // Default to 10 FPS if none is found in the meta\n recommendedDisplayFrameRate = 10;\n }\n // round milliseconds per frame to nearest whole number\n return Math.round(1000 / recommendedDisplayFrameRate);\n }\n\n /**\n * Per value alpha function.\n *\n * @param {number[]|number} _value The pixel value.\n * Can be a number for monochrome data or an array for RGB data.\n * @param {number} _index The index of the value.\n * @returns {number} The coresponding alpha [0,255].\n */\n #alphaFunction = function (_value, _index) {\n // default always returns fully visible\n return 0xff;\n };\n\n /**\n * @callback alphaFn\n * @param {number[]|number} value The pixel value.\n * @param {number} index The values' index.\n * @returns {number} The opacity of the input value.\n */\n\n /**\n * Get the alpha function.\n *\n * @returns {alphaFn} The function.\n */\n getAlphaFunction() {\n return this.#alphaFunction;\n }\n\n /**\n * Set alpha function.\n *\n * @param {alphaFn} func The function.\n * @fires View#alphafuncchange\n */\n setAlphaFunction(func) {\n this.#alphaFunction = func;\n /**\n * Alpha func change event.\n *\n * @event View#alphafuncchange\n * @type {object}\n */\n this.#fireEvent({\n type: 'alphafuncchange'\n });\n }\n\n /**\n * Get the window LUT of the image.\n * Warning: can be undefined in no window/level was set.\n *\n * @returns {WindowLut} The window LUT of the image.\n * @fires View#wlchange\n */\n #getCurrentWindowLut() {\n // special case for 'perslice' presets\n if (this.#currentPresetName &&\n typeof this.#windowPresets[this.#currentPresetName] !== 'undefined' &&\n typeof this.#windowPresets[this.#currentPresetName].perslice !==\n 'undefined' &&\n this.#windowPresets[this.#currentPresetName].perslice === true) {\n // check position\n if (!this.getCurrentIndex()) {\n this.setInitialIndex();\n }\n // get the slice window level\n const currentIndex = this.getCurrentIndex();\n const offset = this.#image.getSecondaryOffset(currentIndex);\n const currentPreset = this.#windowPresets[this.#currentPresetName];\n const sliceWl = currentPreset.wl[offset];\n // set window level: will send a change event, mark it as silent as\n // this change is always triggered by a position change\n this.setWindowLevel(sliceWl, this.#currentPresetName, true);\n }\n\n // if no current, use first id\n if (typeof this.#currentWl === 'undefined') {\n this.setWindowLevelPresetById(0, true);\n }\n\n // get the window lut\n if (typeof this.#isConstantRSI === 'undefined' ||\n this.#image.isConstantRSI() !== this.#isConstantRSI) {\n this.#isConstantRSI = this.#image.isConstantRSI();\n // set or update windowLut if isConstantRSI has changed\n // (can be different at first slice and after having loaded\n // the full volume...)\n let rsi;\n let isDiscrete;\n if (this.#isConstantRSI) {\n rsi = this.#image.getRescaleSlopeAndIntercept();\n isDiscrete = true;\n } else {\n rsi = new RescaleSlopeAndIntercept(1, 0);\n isDiscrete = false;\n }\n // create the rescale lookup table\n const modalityLut = new ModalityLut(\n rsi,\n this.#image.getMeta().BitsStored);\n // create the window lookup table\n this.#windowLut = new WindowLut(\n modalityLut,\n this.#image.getMeta().IsSigned,\n isDiscrete);\n }\n\n // update VOI lut if not present or its window level\n // is different from the current one\n const voiLut = this.#windowLut.getVoiLut();\n let voiLutWl;\n if (typeof voiLut !== 'undefined') {\n voiLutWl = voiLut.getWindowLevel();\n }\n if (typeof voiLut === 'undefined' ||\n !this.#currentWl.equals(voiLutWl)) {\n // set lut window level\n const voiLut = new VoiLut(this.#currentWl);\n this.#windowLut.setVoiLut(voiLut);\n }\n\n // return\n return this.#windowLut;\n }\n\n /**\n * Get the window presets.\n *\n * @returns {object} The window presets.\n */\n getWindowPresets() {\n return this.#windowPresets;\n }\n\n /**\n * Get the window presets names.\n *\n * @returns {string[]} The list of window presets names.\n */\n getWindowPresetsNames() {\n return Object.keys(this.#windowPresets);\n }\n\n /**\n * Set the window presets.\n *\n * @param {object} presets The window presets.\n */\n setWindowPresets(presets) {\n this.#windowPresets = presets;\n }\n\n /**\n * Add window presets to the existing ones.\n *\n * @param {object} presets The window presets.\n */\n addWindowPresets(presets) {\n const keys = Object.keys(presets);\n let key = null;\n for (let i = 0; i < keys.length; ++i) {\n key = keys[i];\n if (typeof this.#windowPresets[key] !== 'undefined') {\n if (typeof this.#windowPresets[key].perslice !== 'undefined' &&\n this.#windowPresets[key].perslice === true) {\n throw new Error('Cannot add perslice preset');\n } else {\n // update existing\n this.#windowPresets[key] = presets[key];\n }\n } else {\n // add new\n this.#windowPresets[key] = presets[key];\n // fire event\n /**\n * Window/level add preset event.\n *\n * @event View#wlpresetadd\n * @type {object}\n * @property {string} name The name of the preset.\n */\n this.#fireEvent({\n type: 'wlpresetadd',\n name: key\n });\n }\n }\n }\n\n /**\n * Get the current window level preset name.\n *\n * @returns {string} The preset name.\n */\n getCurrentWindowPresetName() {\n return this.#currentPresetName;\n }\n\n /**\n * Get the colour map of the image.\n *\n * @returns {string} The colour map name.\n */\n getColourMap() {\n return this.#colourMapName;\n }\n\n /**\n * Get the colour map object.\n *\n * @returns {ColourMap} The colour map.\n */\n #getColourMapLut() {\n return luts[this.#colourMapName];\n }\n\n /**\n * Set the colour map of the image.\n *\n * @param {string} name The colour map name.\n * @fires View#colourmapchange\n */\n setColourMap(name) {\n // check if we have it\n if (!luts[name]) {\n throw new Error('Unknown colour map: \\'' + name + '\\'');\n }\n\n this.#colourMapName = name;\n\n /**\n * Color change event.\n *\n * @event View#colourmapchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'colourmapchange',\n value: [name]\n });\n }\n\n /**\n * Get the current position.\n *\n * @returns {Point} The current position.\n */\n getCurrentPosition() {\n return this.#currentPosition;\n }\n\n /**\n * Get the current index.\n *\n * @returns {Index} The current index.\n */\n getCurrentIndex() {\n const position = this.getCurrentPosition();\n if (!position) {\n return null;\n }\n const geometry = this.getImage().getGeometry();\n return geometry.worldToIndex(position);\n }\n\n /**\n * Get the SOP image UID of the current image.\n *\n * @returns {string} The UID.\n */\n getCurrentImageUid() {\n return this.#image.getImageUid(this.getCurrentIndex());\n }\n\n /**\n * Get the image origin for a image UID.\n *\n * @param {string} uid The UID.\n * @returns {Index|undefined} The origin index.\n */\n getOriginIndexForImageUid(uid) {\n let index;\n const geometry = this.getImage().getGeometry();\n const origin = this.#image.getOriginForImageUid(uid);\n if (typeof origin !== 'undefined') {\n const point = new Point([origin.getX(), origin.getY(), origin.getZ()]);\n index = geometry.worldToIndex(point);\n }\n return index;\n }\n\n /**\n * Check if the current position (default) or\n * the provided position is in bounds.\n *\n * @param {Point} [position] Optional position.\n * @returns {boolean} True is the position is in bounds.\n */\n isPositionInBounds(position) {\n if (typeof position === 'undefined') {\n position = this.#currentPosition;\n }\n const geometry = this.#image.getGeometry();\n const index = geometry.worldToIndex(position);\n const dirs = [this.getScrollIndex()];\n if (index.length() === 4) {\n dirs.push(3);\n }\n return geometry.isIndexInBounds(index, dirs);\n }\n\n /**\n * Get the first origin or at a given position.\n *\n * @param {Point} [position] Optional position.\n * @returns {Point3D} The origin.\n */\n getOrigin(position) {\n const geometry = this.#image.getGeometry();\n let originIndex = 0;\n if (typeof position !== 'undefined') {\n const index = geometry.worldToIndex(position);\n // index is reoriented, 2 is scroll index\n originIndex = index.get(2);\n }\n return geometry.getOrigins()[originIndex];\n }\n\n /**\n * Set the current position.\n *\n * @param {Point} position The new position.\n * @param {boolean} silent Flag to fire event or not.\n * @returns {boolean} False if not in bounds.\n * @fires View#positionchange\n */\n setCurrentPosition(position, silent) {\n // send invalid event if not in bounds\n const geometry = this.#image.getGeometry();\n const index = geometry.worldToIndex(position);\n const dirs = [this.getScrollIndex()];\n if (index.length() === 4) {\n dirs.push(3);\n }\n if (!geometry.isIndexInBounds(index, dirs)) {\n if (!silent) {\n this.#currentPosition = position;\n // fire event with valid: false\n this.#fireEvent({\n type: 'positionchange',\n value: [\n index.getValues(),\n position.getValues(),\n ],\n valid: false\n });\n }\n return false;\n }\n return this.setCurrentIndex(index, silent);\n }\n\n /**\n * Set the current index.\n *\n * @param {Index} index The new index.\n * @param {boolean} [silent] Flag to fire event or not.\n * @returns {boolean} False if not in bounds.\n * @fires View#positionchange\n */\n setCurrentIndex(index, silent) {\n // check input\n if (typeof silent === 'undefined') {\n silent = false;\n }\n\n const geometry = this.#image.getGeometry();\n const position = geometry.indexToWorld(index);\n\n // check if possible\n const dirs = [this.getScrollIndex()];\n if (index.length() === 4) {\n dirs.push(3);\n }\n if (!geometry.isIndexInBounds(index, dirs)) {\n if (!silent) {\n this.#currentPosition = position;\n // fire event with valid: false\n this.#fireEvent({\n type: 'positionchange',\n value: [\n index.getValues(),\n position.getValues(),\n ],\n valid: false\n });\n }\n\n // do no send invalid positionchange event: avoid empty repaint\n return false;\n }\n\n // calculate diff dims before updating internal\n let diffDims = null;\n let currentIndex = null;\n if (this.getCurrentPosition()) {\n currentIndex = this.getCurrentIndex();\n }\n if (currentIndex) {\n if (currentIndex.canCompare(index)) {\n diffDims = currentIndex.compare(index);\n } else {\n diffDims = [];\n const minLen = Math.min(currentIndex.length(), index.length());\n for (let i = 0; i < minLen; ++i) {\n if (currentIndex.get(i) !== index.get(i)) {\n diffDims.push(i);\n }\n }\n const maxLen = Math.max(currentIndex.length(), index.length());\n for (let j = minLen; j < maxLen; ++j) {\n diffDims.push(j);\n }\n }\n } else {\n diffDims = [];\n for (let k = 0; k < index.length(); ++k) {\n diffDims.push(k);\n }\n }\n\n // assign\n this.#currentPosition = position;\n\n if (!silent) {\n /**\n * Position change event.\n *\n * @event View#positionchange\n * @type {object}\n * @property {Array} value The changed value as [index, pixelValue].\n * @property {number[]} diffDims An array of modified indices.\n */\n const posEvent = {\n type: 'positionchange',\n value: [\n index.getValues(),\n position.getValues(),\n ],\n diffDims: diffDims,\n data: {\n imageUid: this.#image.getImageUid(index)\n }\n };\n\n // add value if possible\n if (this.#image.canQuantify()) {\n const pixValue = this.#image.getRescaledValueAtIndex(index);\n posEvent.value.push(pixValue);\n }\n\n // fire\n this.#fireEvent(posEvent);\n }\n\n // all good\n return true;\n }\n\n /**\n * Set the view window/level.\n *\n * @param {WindowLevel} wl The window and level.\n * @param {string} [name] Associated preset name, defaults to 'manual'.\n * Warning: uses the latest set rescale LUT or the default linear one.\n * @param {boolean} [silent] Flag to launch events with skipGenerate.\n * @fires View#wlchange\n */\n setWindowLevel(wl, name, silent) {\n // check input\n if (typeof name === 'undefined') {\n name = 'manual';\n }\n if (name !== 'manual' &&\n typeof this.#windowPresets[name] === 'undefined') {\n throw new Error('Unknown window level preset: \\'' + name + '\\'');\n }\n if (typeof silent === 'undefined') {\n silent = false;\n }\n\n // check if new wl\n const isNewWl = !wl.equals(this.#currentWl);\n // check if new name\n const isNewName = this.#currentPresetName !== name;\n\n // compare to previous if present\n if (isNewWl || isNewName) {\n // assign\n this.#currentWl = wl;\n this.#currentPresetName = name;\n\n // update manual\n if (name === 'manual') {\n if (typeof this.#windowPresets[name] !== 'undefined') {\n this.#windowPresets[name].wl[0] = wl;\n } else {\n // add if not present\n this.addWindowPresets({\n manual: {\n wl: [wl],\n name: 'manual'\n }\n });\n }\n }\n\n /**\n * Window/level change event.\n *\n * @event View#wlchange\n * @type {object}\n * @property {Array} value The changed value.\n * @property {number} wc The new window center value.\n * @property {number} ww The new window wdth value.\n * @property {boolean} skipGenerate Flag to skip view generation.\n */\n this.#fireEvent({\n type: 'wlchange',\n value: [wl.center, wl.width, name],\n wc: wl.center,\n ww: wl.width,\n skipGenerate: silent\n });\n }\n }\n\n /**\n * Get the window/level.\n *\n * @returns {WindowLevel} The window and level.\n */\n getWindowLevel() {\n // same as #currentWl...\n const windowLut = this.#getCurrentWindowLut();\n return windowLut.getVoiLut().getWindowLevel();\n }\n\n /**\n * Set the window level to the preset with the input name.\n *\n * @param {string} name The name of the preset to activate.\n * @param {boolean} [silent] Flag to launch events with skipGenerate.\n */\n setWindowLevelPreset(name, silent) {\n const preset = this.getWindowPresets()[name];\n if (typeof preset === 'undefined') {\n throw new Error('Unknown window level preset: \\'' + name + '\\'');\n }\n // special min/max\n if (name === 'minmax' && typeof preset.wl === 'undefined') {\n preset.wl = [this.getWindowLevelMinMax()];\n }\n // default to first\n let wl = preset.wl[0];\n // check if 'perslice' case\n if (typeof preset.perslice !== 'undefined' &&\n preset.perslice === true) {\n const offset = this.#image.getSecondaryOffset(this.getCurrentIndex());\n wl = preset.wl[offset];\n }\n // set w/l\n this.setWindowLevel(wl, name, silent);\n }\n\n /**\n * Set the window level to the preset with the input id.\n *\n * @param {number} id The id of the preset to activate.\n * @param {boolean} [silent] Flag to launch events with skipGenerate.\n */\n setWindowLevelPresetById(id, silent) {\n const keys = Object.keys(this.getWindowPresets());\n this.setWindowLevelPreset(keys[id], silent);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Get the image window/level that covers the full data range.\n * Warning: uses the latest set rescale LUT or the default linear one.\n *\n * @returns {WindowLevel} A min/max window level.\n */\n getWindowLevelMinMax() {\n const range = this.getImage().getRescaledDataRange();\n const min = range.min;\n const max = range.max;\n let width = max - min;\n // full black / white images, defaults to 1.\n if (width < 1) {\n logger.warn('Zero or negative window width, defaulting to one.');\n width = 1;\n }\n const center = min + width / 2;\n return new WindowLevel(center, width);\n }\n\n /**\n * Set the image window/level to cover the full data range.\n * Warning: uses the latest set rescale LUT or the default linear one.\n */\n setWindowLevelMinMax() {\n // calculate center and width\n const wl = this.getWindowLevelMinMax();\n // set window level\n this.setWindowLevel(wl, 'minmax');\n }\n\n /**\n * Generate display image data to be given to a canvas.\n *\n * @param {ImageData} data The iamge data to fill in.\n * @param {Index} index Optional index at which to generate,\n * otherwise generates at current index.\n */\n generateImageData(data, index) {\n // check index\n if (typeof index === 'undefined') {\n if (!this.getCurrentIndex()) {\n this.setInitialIndex();\n }\n index = this.getCurrentIndex();\n }\n\n const image = this.getImage();\n const isRescaled = !image.isConstantRSI();\n const iterator = getSliceIterator(\n image, index, isRescaled, this.getOrientation());\n\n const photoInterpretation = image.getPhotometricInterpretation();\n switch (photoInterpretation) {\n case 'MONOCHROME1':\n case 'MONOCHROME2':\n generateImageDataMonochrome(\n data,\n iterator,\n this.getAlphaFunction(),\n this.#getCurrentWindowLut(),\n this.#getColourMapLut()\n );\n break;\n\n case 'PALETTE COLOR':\n generateImageDataPaletteColor(\n data,\n iterator,\n this.getAlphaFunction(),\n this.#getColourMapLut(),\n image.getMeta().BitsStored === 16\n );\n break;\n\n case 'RGB':\n generateImageDataRgb(\n data,\n iterator,\n this.getAlphaFunction()\n );\n break;\n\n case 'YBR_FULL':\n generateImageDataYbrFull(\n data,\n iterator,\n this.getAlphaFunction()\n );\n break;\n\n default:\n throw new Error(\n 'Unsupported photometric interpretation: ' + photoInterpretation);\n }\n }\n\n /**\n * Get the scroll dimension index.\n *\n * @returns {number} The index.\n */\n getScrollIndex() {\n let index = null;\n const orientation = this.getOrientation();\n if (typeof orientation !== 'undefined') {\n index = orientation.getThirdColMajorDirection();\n } else {\n index = 2;\n }\n return index;\n }\n\n} // class View\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {WindowLut} from './windowLut';\nimport {ColourMap} from './luts';\n/* eslint-enable no-unused-vars */\n\n/**\n * Generate image data for 'MONOCHROME*' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n * @param {WindowLut} windowLut The window/level LUT.\n * @param {ColourMap} colourMap The colour map.\n */\nexport function generateImageDataMonochrome(\n array,\n iterator,\n alphaFunc,\n windowLut,\n colourMap) {\n let index = 0;\n let pxValue = 0;\n let ival = iterator.next();\n while (!ival.done) {\n // pixel value\n pxValue = windowLut.getValue(ival.value);\n // store data\n array.data[index] = colourMap.red[pxValue];\n array.data[index + 1] = colourMap.green[pxValue];\n array.data[index + 2] = colourMap.blue[pxValue];\n array.data[index + 3] = alphaFunc(ival.value, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","import {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ColourMap} from './luts';\n/* eslint-enable no-unused-vars */\n\n/**\n * Generate image data for 'PALETTE COLOR' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n * @param {ColourMap} colourMap The colour map.\n * @param {boolean} is16BitsStored Flag to know if the data is 16bits.\n */\nexport function generateImageDataPaletteColor(\n array,\n iterator,\n alphaFunc,\n colourMap,\n is16BitsStored) {\n // right shift 8\n const to8 = function (value) {\n return value >> 8;\n };\n\n if (is16BitsStored) {\n logger.info('Scaling 16bits data to 8bits.');\n }\n\n let index = 0;\n let pxValue = 0;\n let ival = iterator.next();\n while (!ival.done) {\n // pixel value\n pxValue = ival.value;\n // store data\n // TODO check pxValue fits in lut\n if (is16BitsStored) {\n array.data[index] = to8(colourMap.red[pxValue]);\n array.data[index + 1] = to8(colourMap.green[pxValue]);\n array.data[index + 2] = to8(colourMap.blue[pxValue]);\n } else {\n array.data[index] = colourMap.red[pxValue];\n array.data[index + 1] = colourMap.green[pxValue];\n array.data[index + 2] = colourMap.blue[pxValue];\n }\n array.data[index + 3] = alphaFunc(pxValue, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","/**\n * Generate image data for 'RGB' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n */\nexport function generateImageDataRgb(\n array,\n iterator,\n alphaFunc) {\n let index = 0;\n let ival = iterator.next();\n while (!ival.done) {\n // store data\n array.data[index] = ival.value[0];\n array.data[index + 1] = ival.value[1];\n array.data[index + 2] = ival.value[2];\n array.data[index + 3] = alphaFunc(ival.value, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","import {ybrToRgb} from '../utils/colour';\n\n/**\n * Generate image data for 'YBR_FULL' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n */\nexport function generateImageDataYbrFull(\n array,\n iterator,\n alphaFunc) {\n let index = 0;\n let rgb = null;\n let ival = iterator.next();\n while (!ival.done) {\n // convert ybr to rgb\n rgb = ybrToRgb(ival.value[0], ival.value[1], ival.value[2]);\n // store data\n array.data[index] = rgb.r;\n array.data[index + 1] = rgb.g;\n array.data[index + 2] = rgb.b;\n array.data[index + 3] = alphaFunc(ival.value, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","import {Vector3D} from '../math/vector';\nimport {Point3D} from '../math/point';\nimport {getTargetOrientation} from '../gui/layerGroup';\nimport {getOrientedArray3D, getDeOrientedArray3D} from './geometry';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\nimport {Spacing} from './spacing';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Plane geometry helper.\n */\nexport class PlaneHelper {\n\n /**\n * The associated spacing.\n *\n * @type {Spacing}\n */\n #spacing;\n\n /**\n * The image orientation.\n *\n * @type {Matrix33}\n */\n #imageOrientation;\n\n /**\n * The viewe orientation.\n *\n * @type {Matrix33}\n */\n #viewOrientation;\n\n /**\n * The target orientation.\n *\n * @type {Matrix33}\n */\n #targetOrientation;\n\n /**\n * @param {Spacing} spacing The spacing.\n * @param {Matrix33} imageOrientation The image oientation.\n * @param {Matrix33} viewOrientation The view orientation.\n */\n constructor(spacing, imageOrientation, viewOrientation) {\n this.#spacing = spacing;\n this.#imageOrientation = imageOrientation;\n this.#viewOrientation = viewOrientation;\n\n this.#targetOrientation = getTargetOrientation(\n imageOrientation, viewOrientation);\n }\n\n /**\n * Get a 3D offset from a plane one.\n *\n * @param {Scalar2D} offset2D The plane offset as {x,y}.\n * @returns {Vector3D} The 3D world offset.\n */\n getOffset3DFromPlaneOffset(offset2D) {\n // make 3D\n const planeOffset = new Vector3D(\n offset2D.x, offset2D.y, 0);\n // de-orient\n const pixelOffset = this.getTargetDeOrientedVector3D(planeOffset);\n // ~indexToWorld\n return new Vector3D(\n pixelOffset.getX() * this.#spacing.get(0),\n pixelOffset.getY() * this.#spacing.get(1),\n pixelOffset.getZ() * this.#spacing.get(2));\n }\n\n /**\n * Get a plane offset from a 3D one.\n *\n * @param {Scalar3D} offset3D The 3D offset as {x,y,z}.\n * @returns {Scalar2D} The plane offset as {x,y}.\n */\n getPlaneOffsetFromOffset3D(offset3D) {\n // ~worldToIndex\n const pixelOffset = new Vector3D(\n offset3D.x / this.#spacing.get(0),\n offset3D.y / this.#spacing.get(1),\n offset3D.z / this.#spacing.get(2));\n // orient\n const planeOffset = this.getTargetOrientedVector3D(pixelOffset);\n // make 2D\n return {\n x: planeOffset.getX(),\n y: planeOffset.getY()\n };\n }\n\n /**\n * Orient an input vector from real to target space.\n *\n * @param {Vector3D} vector The input vector.\n * @returns {Vector3D} The oriented vector.\n */\n getTargetOrientedVector3D(vector) {\n let planeVector = vector;\n if (typeof this.#targetOrientation !== 'undefined') {\n planeVector =\n this.#targetOrientation.getInverse().multiplyVector3D(vector);\n }\n return planeVector;\n }\n\n /**\n * De-orient an input vector from target to real space.\n *\n * @param {Vector3D} planeVector The input vector.\n * @returns {Vector3D} The de-orienteded vector.\n */\n getTargetDeOrientedVector3D(planeVector) {\n let vector = planeVector;\n if (typeof this.#targetOrientation !== 'undefined') {\n vector = this.#targetOrientation.multiplyVector3D(planeVector);\n }\n return vector;\n }\n\n /**\n * De-orient an input point from target to real space.\n *\n * @param {Point3D} planePoint The input point.\n * @returns {Point3D} The de-orienteded point.\n */\n getTargetDeOrientedPoint3D(planePoint) {\n let point = planePoint;\n if (typeof this.#targetOrientation !== 'undefined') {\n point = this.#targetOrientation.multiplyPoint3D(planePoint);\n }\n return point;\n }\n\n /**\n * Orient an input vector from target to image space.\n *\n * @param {Vector3D} planeVector The input vector.\n * @returns {Vector3D} The orienteded vector.\n */\n getImageOrientedVector3D(planeVector) {\n let vector = planeVector;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image oriented => view de-oriented\n const values = getDeOrientedArray3D(\n [\n planeVector.getX(),\n planeVector.getY(),\n planeVector.getZ()\n ],\n this.#viewOrientation);\n vector = new Vector3D(\n values[0],\n values[1],\n values[2]\n );\n }\n return vector;\n }\n\n /**\n * Orient an input point from target to image space.\n *\n * @param {Point3D} planePoint The input vector.\n * @returns {Point3D} The orienteded vector.\n */\n getImageOrientedPoint3D(planePoint) {\n let point = planePoint;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image oriented => view de-oriented\n const values = getDeOrientedArray3D(\n [\n planePoint.getX(),\n planePoint.getY(),\n planePoint.getZ()\n ],\n this.#viewOrientation);\n point = new Point3D(\n values[0],\n values[1],\n values[2]\n );\n }\n return point;\n }\n\n /**\n * De-orient an input vector from image to target space.\n *\n * @param {Vector3D} vector The input vector.\n * @returns {Vector3D} The de-orienteded vector.\n */\n getImageDeOrientedVector3D(vector) {\n let planeVector = vector;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image de-oriented => view oriented\n const orientedValues = getOrientedArray3D(\n [\n vector.getX(),\n vector.getY(),\n vector.getZ()\n ],\n this.#viewOrientation);\n planeVector = new Vector3D(\n orientedValues[0],\n orientedValues[1],\n orientedValues[2]\n );\n }\n return planeVector;\n }\n\n /**\n * De-orient an input point from image to target space.\n *\n * @param {Point3D} point The input point.\n * @returns {Point3D} The de-orienteded point.\n */\n getImageDeOrientedPoint3D(point) {\n let planePoint = point;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image de-oriented => view oriented\n const orientedValues = getOrientedArray3D(\n [\n point.getX(),\n point.getY(),\n point.getZ()\n ],\n this.#viewOrientation);\n planePoint = new Point3D(\n orientedValues[0],\n orientedValues[1],\n orientedValues[2]\n );\n }\n return planePoint;\n }\n\n /**\n * Reorder values to follow target orientation.\n *\n * @param {Scalar3D} values Values as {x,y,z}.\n * @returns {Scalar3D} Reoriented values as {x,y,z}.\n */\n getTargetOrientedPositiveXYZ(values) {\n const orientedValues = getOrientedArray3D(\n [\n values.x,\n values.y,\n values.z\n ],\n this.#targetOrientation);\n return {\n x: orientedValues[0],\n y: orientedValues[1],\n z: orientedValues[2]\n };\n }\n\n /**\n * Get the (view) scroll dimension index.\n *\n * @returns {number} The index.\n */\n getScrollIndex() {\n let index = null;\n if (typeof this.#viewOrientation !== 'undefined') {\n index = this.#viewOrientation.getThirdColMajorDirection();\n } else {\n index = 2;\n }\n return index;\n }\n\n /**\n * Get the native (image) scroll dimension index.\n *\n * @returns {number} The index.\n */\n getNativeScrollIndex() {\n let index = null;\n if (typeof this.#imageOrientation !== 'undefined') {\n index = this.#imageOrientation.getThirdColMajorDirection();\n } else {\n index = 2;\n }\n return index;\n }\n\n} // class PlaneHelper\n","import {getIdentityMat33} from '../math/matrix';\nimport {getCoronalMat33} from '../math/orientation';\nimport {Index} from '../math/index';\nimport {Point} from '../math/point';\nimport {Vector3D} from '../math/vector';\nimport {viewEventNames} from '../image/view';\nimport {ListenerHandler} from '../utils/listen';\nimport {logger} from '../utils/logger';\nimport {precisionRound} from '../utils/string';\nimport {ViewLayer} from './viewLayer';\nimport {DrawLayer} from './drawLayer';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\nimport {Point2D, Point3D} from '../math/point';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get the layer div id.\n *\n * @param {string} groupDivId The layer group div id.\n * @param {number} layerId The lyaer id.\n * @returns {string} A string id.\n */\nexport function getLayerDivId(groupDivId, layerId) {\n return groupDivId + '-layer-' + layerId;\n}\n\n/**\n * Get the layer details from a div id.\n *\n * @param {string} idString The layer div id.\n * @returns {object} The layer details as {groupDivId, layerId}.\n */\nexport function getLayerDetailsFromLayerDivId(idString) {\n const split = idString.split('-layer-');\n if (split.length !== 2) {\n logger.warn('Not the expected layer div id format...');\n }\n return {\n groupDivId: split[0],\n layerId: split[1]\n };\n}\n\n/**\n * Get the layer details from a mouse event.\n *\n * @param {object} event The event to get the layer div id from. Expecting\n * an event origininating from a canvas inside a layer HTML div\n * with the 'layer' class and id generated with `getLayerDivId`.\n * @returns {object} The layer details as {groupDivId, layerId}.\n */\nexport function getLayerDetailsFromEvent(event) {\n let res = null;\n // get the closest element from the event target and with the 'layer' class\n const layerDiv = event.target.closest('.layer');\n if (layerDiv && typeof layerDiv.id !== 'undefined') {\n res = getLayerDetailsFromLayerDivId(layerDiv.id);\n }\n return res;\n}\n\n/**\n * Get the view orientation according to an image and target orientation.\n * The view orientation is used to go from target to image space.\n *\n * @param {Matrix33} imageOrientation The image geometry.\n * @param {Matrix33} targetOrientation The target orientation.\n * @returns {Matrix33} The view orientation.\n */\nexport function getViewOrientation(imageOrientation, targetOrientation) {\n let viewOrientation = getIdentityMat33();\n if (typeof targetOrientation !== 'undefined') {\n // i: image, v: view, t: target, O: orientation, P: point\n // [Img] -- Oi --> [Real] <-- Ot -- [Target]\n // Pi = (Oi)-1 * Ot * Pt = Ov * Pt\n // -> Ov = (Oi)-1 * Ot\n // TODO: asOneAndZeros simplifies but not nice...\n viewOrientation =\n imageOrientation.asOneAndZeros().getInverse().multiply(targetOrientation);\n }\n // TODO: why abs???\n return viewOrientation.getAbs();\n}\n\n/**\n * Get the target orientation according to an image and view orientation.\n * The target orientation is used to go from target to real space.\n *\n * @param {Matrix33} imageOrientation The image geometry.\n * @param {Matrix33} viewOrientation The view orientation.\n * @returns {Matrix33} The target orientation.\n */\nexport function getTargetOrientation(imageOrientation, viewOrientation) {\n // i: image, v: view, t: target, O: orientation, P: point\n // [Img] -- Oi --> [Real] <-- Ot -- [Target]\n // Pi = (Oi)-1 * Ot * Pt = Ov * Pt\n // -> Ot = Oi * Ov\n // note: asOneAndZeros as in getViewOrientation...\n let targetOrientation =\n imageOrientation.asOneAndZeros().multiply(viewOrientation);\n\n // TODO: why abs???\n const simpleImageOrientation = imageOrientation.asOneAndZeros().getAbs();\n if (simpleImageOrientation.equals(getCoronalMat33().getAbs())) {\n targetOrientation = targetOrientation.getAbs();\n }\n\n return targetOrientation;\n}\n\n/**\n * Get a scaled offset to adapt to new scale and such as the input center\n * stays at the same position.\n *\n * @param {Scalar2D} offset The previous offset as {x,y}.\n * @param {Scalar2D} scale The previous scale as {x,y}.\n * @param {Scalar2D} newScale The new scale as {x,y}.\n * @param {Scalar2D} center The scale center as {x,y}.\n * @returns {Scalar2D} The scaled offset as {x,y}.\n */\nexport function getScaledOffset(offset, scale, newScale, center) {\n // worldPoint = indexPoint / scale + offset\n //=> indexPoint = (worldPoint - offset ) * scale\n\n // plane center should stay the same:\n // indexCenter / newScale + newOffset =\n // indexCenter / oldScale + oldOffset\n //=> newOffset = indexCenter / oldScale + oldOffset -\n // indexCenter / newScale\n //=> newOffset = worldCenter - indexCenter / newScale\n const indexCenter = {\n x: (center.x - offset.x) * scale.x,\n y: (center.y - offset.y) * scale.y\n };\n return {\n x: center.x - (indexCenter.x / newScale.x),\n y: center.y - (indexCenter.y / newScale.y)\n };\n}\n\n/**\n * Layer group.\n *\n * - Display position: {x,y},\n * - Plane position: Index (access: get(i)),\n * - (world) Position: Point3D (access: getX, getY, getZ).\n *\n * Display -> World:\n * - planePos = viewLayer.displayToPlanePos(displayPos)\n * -> compensate for layer scale and offset,\n * - pos = viewController.getPositionFromPlanePoint(planePos).\n *\n * World -> Display:\n * - planePos = viewController.getOffset3DFromPlaneOffset(pos)\n * no need yet for a planePos to displayPos...\n */\nexport class LayerGroup {\n\n /**\n * The container div.\n *\n * @type {HTMLElement}\n */\n #containerDiv;\n\n // jsdoc does not like\n // @type {(ViewLayer|DrawLayer)[]}\n\n /**\n * List of layers.\n *\n * @type {Array}\n */\n #layers = [];\n\n /**\n * The layer scale as {x,y,z}.\n *\n * @type {Scalar3D}\n */\n #scale = {x: 1, y: 1, z: 1};\n\n /**\n * The base scale as {x,y,z}: all posterior scale will be on top of this one.\n *\n * @type {Scalar3D}\n */\n #baseScale = {x: 1, y: 1, z: 1};\n\n /**\n * The layer offset as {x,y,z}.\n *\n * @type {Scalar3D}\n */\n #offset = {x: 0, y: 0, z: 0};\n\n /**\n * Active view layer index.\n *\n * @type {number}\n */\n #activeViewLayerIndex = undefined;\n\n /**\n * Active draw layer index.\n *\n * @type {number}\n */\n #activeDrawLayerIndex = undefined;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Flag to activate crosshair or not.\n *\n * @type {boolean}\n */\n #showCrosshair = false;\n\n /**\n * Crosshair HTML elements.\n *\n * @type {HTMLElement[]}\n */\n #crosshairHtmlElements = [];\n\n /**\n * Tooltip HTML element.\n *\n * @type {HTMLElement}\n */\n #tooltipHtmlElement;\n\n /**\n * The current position used for the crosshair.\n *\n * @type {Point}\n */\n #currentPosition;\n\n /**\n * Image smoothing flag.\n *\n * @type {boolean}\n */\n #imageSmoothing = false;\n\n /**\n * @param {HTMLElement} containerDiv The associated HTML div.\n */\n constructor(containerDiv) {\n this.#containerDiv = containerDiv;\n }\n\n /**\n * Get the showCrosshair flag.\n *\n * @returns {boolean} True to display the crosshair.\n */\n getShowCrosshair() {\n return this.#showCrosshair;\n }\n\n /**\n * Set the showCrosshair flag.\n *\n * @param {boolean} flag True to display the crosshair.\n */\n setShowCrosshair(flag) {\n this.#showCrosshair = flag;\n if (flag) {\n // listen to offset and zoom change\n this.addEventListener('offsetchange', this.#updateCrosshairOnChange);\n this.addEventListener('zoomchange', this.#updateCrosshairOnChange);\n // show crosshair div\n this.#showCrosshairDiv();\n } else {\n // listen to offset and zoom change\n this.removeEventListener('offsetchange', this.#updateCrosshairOnChange);\n this.removeEventListener('zoomchange', this.#updateCrosshairOnChange);\n // remove crosshair div\n this.#removeCrosshairDiv();\n }\n }\n\n /**\n * Set the imageSmoothing flag value.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#imageSmoothing = flag;\n // set for existing layers\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n layer.setImageSmoothing(flag);\n }\n }\n }\n\n /**\n * Update crosshair on offset or zoom change.\n *\n * @param {object} _event The change event.\n */\n #updateCrosshairOnChange = (_event) => {\n this.#showCrosshairDiv();\n };\n\n /**\n * Get the Id of the container div.\n *\n * @returns {string} The id of the div.\n */\n getDivId() {\n return this.#containerDiv.id;\n }\n\n /**\n * Get the layer scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getScale() {\n return this.#scale;\n }\n\n /**\n * Get the base scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getBaseScale() {\n return this.#baseScale;\n }\n\n /**\n * Get the added scale: the scale added to the base scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getAddedScale() {\n return {\n x: this.#scale.x / this.#baseScale.x,\n y: this.#scale.y / this.#baseScale.y,\n z: this.#scale.z / this.#baseScale.z\n };\n }\n\n /**\n * Get the layer offset.\n *\n * @returns {Scalar3D} The offset as {x,y,z}.\n */\n getOffset() {\n return this.#offset;\n }\n\n /**\n * Get the number of layers handled by this class.\n *\n * @returns {number} The number of layers.\n */\n getNumberOfLayers() {\n let count = 0;\n this.#layers.forEach(item => {\n if (typeof item !== 'undefined') {\n count++;\n }\n });\n return count;\n }\n\n /**\n * Check if this layerGroup contains a layer with the input id.\n *\n * @param {string} id The layer id to look for.\n * @returns {boolean} True if this group contains\n * a layer with the input id.\n */\n includes(id) {\n if (typeof id === 'undefined') {\n return false;\n }\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined' &&\n layer.getId() === id) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Get the number of view layers handled by this class.\n *\n * @returns {number} The number of layers.\n */\n getNumberOfViewLayers() {\n let count = 0;\n this.#layers.forEach(item => {\n if (typeof item !== 'undefined' &&\n item instanceof ViewLayer) {\n count++;\n }\n });\n return count;\n }\n\n /**\n * Get the active image layer.\n *\n * @returns {ViewLayer|undefined} The layer.\n */\n getActiveViewLayer() {\n let layer;\n if (typeof this.#activeViewLayerIndex !== 'undefined') {\n const tmpLayer = this.#layers[this.#activeViewLayerIndex];\n if (tmpLayer instanceof ViewLayer) {\n layer = tmpLayer;\n }\n }\n return layer;\n }\n\n /**\n * Get the base view layer.\n *\n * @returns {ViewLayer|undefined} The layer.\n */\n getBaseViewLayer() {\n let layer;\n if (this.#layers[0] instanceof ViewLayer) {\n layer = this.#layers[0];\n }\n return layer;\n }\n\n /**\n * Get the view layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {ViewLayer[]} The layers.\n */\n getViewLayersByDataId(dataId) {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer &&\n layer.getDataId() === dataId) {\n res.push(layer);\n }\n }\n return res;\n }\n\n /**\n * Search view layers for equal imae meta data.\n *\n * @param {object} meta The meta data to find.\n * @returns {ViewLayer[]} The list of view layers that contain matched data.\n */\n searchViewLayers(meta) {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n if (layer.getViewController().equalImageMeta(meta)) {\n res.push(layer);\n }\n }\n }\n return res;\n }\n\n /**\n * Get the view layers data indices.\n *\n * @returns {string[]} The list of indices.\n */\n getViewDataIndices() {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n res.push(layer.getDataId());\n }\n }\n return res;\n }\n\n /**\n * Get the active draw layer.\n *\n * @returns {DrawLayer|undefined} The layer.\n */\n getActiveDrawLayer() {\n let layer;\n if (typeof this.#activeDrawLayerIndex !== 'undefined') {\n const tmpLayer = this.#layers[this.#activeDrawLayerIndex];\n if (tmpLayer instanceof DrawLayer) {\n layer = tmpLayer;\n }\n }\n return layer;\n }\n\n /**\n * Get the draw layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {DrawLayer[]} The layers.\n */\n getDrawLayersByDataId(dataId) {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof DrawLayer &&\n layer.getDataId() === dataId) {\n res.push(layer);\n }\n }\n return res;\n }\n\n /**\n * Set the active view layer.\n *\n * @param {number} index The index of the layer to set as active.\n */\n setActiveViewLayer(index) {\n if (this.#layers[index] instanceof ViewLayer) {\n this.#activeViewLayerIndex = index;\n /**\n * Active view layer change event.\n *\n * @event LayerGroup#activeviewlayerchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'activelayerchange',\n value: [this.#layers[index]]\n });\n } else {\n logger.warn('No view layer to set as active with index: ' +\n index);\n }\n }\n\n /**\n * Set the active view layer with a data id.\n *\n * @param {string} dataId The data id.\n */\n setActiveViewLayerByDataId(dataId) {\n let index;\n for (let i = 0; i < this.#layers.length; ++i) {\n if (this.#layers[i] instanceof ViewLayer &&\n this.#layers[i].getDataId() === dataId) {\n // stop at first one\n index = i;\n break;\n }\n }\n if (typeof index !== 'undefined') {\n this.setActiveViewLayer(index);\n } else {\n logger.warn('No view layer to set as active with dataId: ' +\n dataId);\n }\n }\n\n /**\n * Set the active draw layer.\n *\n * @param {number} index The index of the layer to set as active.\n */\n setActiveDrawLayer(index) {\n if (this.#layers[index] instanceof DrawLayer) {\n this.#activeDrawLayerIndex = index;\n this.#fireEvent({\n type: 'activelayerchange',\n value: [this.#layers[index]]\n });\n } else {\n logger.warn('No draw layer to set as active with index: ' +\n index);\n }\n }\n\n /**\n * Set the active draw layer with a data id.\n *\n * @param {string} dataId The data id.\n */\n setActiveDrawLayerByDataId(dataId) {\n let index;\n for (let i = 0; i < this.#layers.length; ++i) {\n if (this.#layers[i] instanceof DrawLayer &&\n this.#layers[i].getDataId() === dataId) {\n // stop at first one\n index = i;\n break;\n }\n }\n if (typeof index !== 'undefined') {\n this.setActiveDrawLayer(index);\n } else {\n logger.warn('No draw layer to set as active with dataId: ' +\n dataId);\n }\n }\n\n /**\n * Add a view layer.\n *\n * The new layer will be marked as the active view layer.\n *\n * @returns {ViewLayer} The created layer.\n */\n addViewLayer() {\n // layer index\n const viewLayerIndex = this.#layers.length;\n // create div\n const div = this.#getNextLayerDiv();\n // prepend to container\n this.#containerDiv.append(div);\n // view layer\n const layer = new ViewLayer(div);\n layer.setImageSmoothing(this.#imageSmoothing);\n // add layer\n this.#layers.push(layer);\n // mark it as active\n this.setActiveViewLayer(viewLayerIndex);\n // bind view layer events\n this.#bindViewLayer(layer);\n // return\n return layer;\n }\n\n /**\n * Add a draw layer.\n *\n * The new layer will be marked as the active draw layer.\n *\n * @returns {DrawLayer} The created layer.\n */\n addDrawLayer() {\n // store active index\n this.#activeDrawLayerIndex = this.#layers.length;\n // create div\n const div = this.#getNextLayerDiv();\n // prepend to container\n this.#containerDiv.append(div);\n // draw layer\n const layer = new DrawLayer(div);\n // add layer\n this.#layers.push(layer);\n // bind draw layer events\n this.#bindDrawLayer(layer);\n // return\n return layer;\n }\n\n /**\n * Bind view layer events to this.\n *\n * @param {ViewLayer} viewLayer The view layer to bind.\n */\n #bindViewLayer(viewLayer) {\n // listen to position change to update other group layers\n viewLayer.addEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n // propagate view viewLayer-layer events\n for (const eventName of viewEventNames) {\n viewLayer.addEventListener(eventName, this.#fireEvent);\n }\n // propagate viewLayer events\n viewLayer.addEventListener('renderstart', this.#fireEvent);\n viewLayer.addEventListener('renderend', this.#fireEvent);\n }\n\n /**\n * Un-bind a view layer events to this.\n *\n * @param {ViewLayer} viewLayer The view layer to unbind.\n */\n #unbindViewLayer(viewLayer) {\n // stop listening to position change to update other group layers\n viewLayer.removeEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n // stop propagating view viewLayer-layer events\n for (const eventName of viewEventNames) {\n viewLayer.removeEventListener(eventName, this.#fireEvent);\n }\n // stop propagating viewLayer events\n viewLayer.removeEventListener('renderstart', this.#fireEvent);\n viewLayer.removeEventListener('renderend', this.#fireEvent);\n\n // stop view layer - image binding\n // (binding is done in layer.setView)\n viewLayer.unbindImage();\n }\n\n /**\n * Bind draw layer events to this.\n *\n * @param {DrawLayer} drawLayer The draw layer to bind.\n */\n #bindDrawLayer(drawLayer) {\n // propagate drawLayer events\n drawLayer.addEventListener('drawcreate', this.#fireEvent);\n drawLayer.addEventListener('drawdelete', this.#fireEvent);\n }\n\n /**\n * Un-bind a draw layer events to this.\n *\n * @param {DrawLayer} drawLayer The draw layer to unbind.\n */\n #unbindDrawLayer(drawLayer) {\n // propagate drawLayer events\n drawLayer.removeEventListener('drawcreate', this.#fireEvent);\n drawLayer.removeEventListener('drawdelete', this.#fireEvent);\n }\n\n /**\n * Get the next layer DOM div.\n *\n * @returns {HTMLDivElement} A DOM div.\n */\n #getNextLayerDiv() {\n const div = document.createElement('div');\n div.id = getLayerDivId(this.getDivId(), this.#layers.length);\n div.className = 'layer';\n div.style.pointerEvents = 'none';\n return div;\n }\n\n /**\n * Empty the layer list.\n */\n empty() {\n this.#layers = [];\n // reset active indices\n this.#activeViewLayerIndex = undefined;\n this.#activeDrawLayerIndex = undefined;\n // remove possible crosshair\n this.#removeCrosshairDiv();\n // clean container div\n const previous = this.#containerDiv.getElementsByClassName('layer');\n if (previous) {\n while (previous.length > 0) {\n previous[0].remove();\n }\n }\n }\n\n /**\n * Remove all layers for a specific data.\n *\n * @param {string} dataId The data to remove its layers.\n */\n removeLayersByDataId(dataId) {\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined' &&\n layer.getDataId() === dataId) {\n this.removeLayer(layer);\n }\n }\n }\n\n /**\n * Remove a layer from this layer group.\n * Warning: if current active layer, the index will\n * be set to `undefined`. Call one of the setActive\n * methods to define the active index.\n *\n * @param {ViewLayer | DrawLayer} layer The layer to remove.\n */\n removeLayer(layer) {\n // find layer\n const index = this.#layers.findIndex((item) => item === layer);\n if (index === -1) {\n throw new Error('Cannot find layer to remove');\n }\n // unbind and update active index\n if (layer instanceof ViewLayer) {\n this.#unbindViewLayer(layer);\n if (this.#activeViewLayerIndex === index) {\n this.#activeViewLayerIndex = undefined;\n }\n } else {\n this.#unbindDrawLayer(layer);\n if (this.#activeDrawLayerIndex === index) {\n this.#activeDrawLayerIndex = undefined;\n }\n }\n // reset in storage\n this.#layers[index] = undefined;\n // update html\n layer.removeFromDOM();\n }\n\n /**\n * Show a crosshair at a given position.\n *\n * @param {Point} [position] The position where to show the crosshair,\n * defaults to current position.\n */\n #showCrosshairDiv(position) {\n if (typeof position === 'undefined') {\n position = this.#currentPosition;\n }\n\n // remove previous\n this.#removeCrosshairDiv();\n\n // use first layer as base for calculating position and\n // line sizes\n let baseLayer;\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n baseLayer = layer;\n break;\n }\n }\n if (typeof baseLayer === 'undefined') {\n logger.warn('No layer to show crosshair');\n return;\n }\n\n const vc = baseLayer.getViewController();\n const planePos = vc.getPlanePositionFromPosition(position);\n const displayPos = baseLayer.planePosToDisplay(planePos);\n\n // horizontal line\n if (typeof displayPos.getY() !== 'undefined') {\n const lineH = document.createElement('hr');\n lineH.id = this.getDivId() + '-scroll-crosshair-horizontal';\n lineH.className = 'horizontal';\n lineH.style.width = this.#containerDiv.offsetWidth + 'px';\n lineH.style.left = '0px';\n lineH.style.top = displayPos.getY() + 'px';\n // add to local array\n this.#crosshairHtmlElements.push(lineH);\n // add to html\n this.#containerDiv.appendChild(lineH);\n }\n\n // vertical line\n if (typeof displayPos.getX() !== 'undefined') {\n const lineV = document.createElement('hr');\n lineV.id = this.getDivId() + '-scroll-crosshair-vertical';\n lineV.className = 'vertical';\n lineV.style.width = this.#containerDiv.offsetHeight + 'px';\n lineV.style.left = (displayPos.getX()) + 'px';\n lineV.style.top = '0px';\n // add to local array\n this.#crosshairHtmlElements.push(lineV);\n // add to html\n this.#containerDiv.appendChild(lineV);\n }\n }\n\n /**\n * Remove crosshair divs.\n */\n #removeCrosshairDiv() {\n for (const element of this.#crosshairHtmlElements) {\n element.remove();\n }\n this.#crosshairHtmlElements = [];\n }\n\n /**\n * Displays a tooltip in a temporary `span`.\n * Works with css to hide/show the span only on mouse hover.\n *\n * @param {Point2D} point The update point.\n */\n showTooltip(point) {\n // remove previous div\n this.removeTooltipDiv();\n\n const viewLayer = this.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planePos = viewLayer.displayToPlanePos(point);\n const position = viewController.getPositionFromPlanePoint(planePos);\n const value = viewController.getRescaledImageValue(position);\n\n // create\n if (typeof value !== 'undefined') {\n const span = document.createElement('span');\n span.id = 'scroll-tooltip';\n // tooltip position\n span.style.left = (point.getX() + 10) + 'px';\n span.style.top = (point.getY() + 10) + 'px';\n let text = precisionRound(value, 3).toString();\n if (typeof viewController.getPixelUnit() !== 'undefined') {\n text += ' ' + viewController.getPixelUnit();\n }\n span.appendChild(document.createTextNode(text));\n // add to local var\n this.#tooltipHtmlElement = span;\n // add to html\n this.#containerDiv.appendChild(span);\n }\n }\n\n /**\n * Remove the tooltip html div.\n */\n removeTooltipDiv() {\n if (typeof this.#tooltipHtmlElement !== 'undefined') {\n this.#tooltipHtmlElement.remove();\n this.#tooltipHtmlElement = undefined;\n }\n }\n\n\n /**\n * Test if one of the view layers satisfies an input callbackFn.\n *\n * @param {Function} callbackFn A function that takes a ViewLayer as input\n * and returns a boolean.\n * @returns {boolean} True if one of the ViewLayers satisfies the callbackFn.\n */\n someViewLayer(callbackFn) {\n let hasOne = false;\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer &&\n callbackFn(layer)) {\n hasOne = true;\n break;\n }\n }\n return hasOne;\n }\n\n /**\n * Can the input position be set on one of the view layers.\n *\n * @param {Point} position The input position.\n * @returns {boolean} True if one view layer accepts the input position.\n */\n isPositionInBounds(position) {\n return this.someViewLayer(function (layer) {\n return layer.getViewController().isPositionInBounds(position);\n });\n }\n\n /**\n * Can one of the view layers be scrolled.\n *\n * @returns {boolean} True if one view layer can be scrolled.\n */\n canScroll() {\n return this.someViewLayer(function (layer) {\n return layer.getViewController().canScroll();\n });\n }\n\n /**\n * Does one of the view layer have more than one slice in the\n * given dimension.\n *\n * @param {number} dim The input dimension.\n * @returns {boolean} True if one view layer has more than one slice.\n */\n moreThanOne(dim) {\n return this.someViewLayer(function (layer) {\n return layer.getViewController().moreThanOne(dim);\n });\n }\n\n /**\n * Update layers (but not the active view layer) to a position change.\n *\n * @param {object} event The position change event.\n * @function\n */\n updateLayersToPositionChange = (event) => {\n // pause positionchange listeners\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n layer.removeEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n layer.removeEventListener('positionchange', this.#fireEvent);\n }\n }\n\n const index = new Index(event.value[0]);\n const position = new Point(event.value[1]);\n\n // store current position\n this.#currentPosition = position;\n\n if (this.#showCrosshair) {\n this.#showCrosshairDiv(position);\n }\n\n // origin of the first view layer\n let baseViewLayerOrigin0;\n let baseViewLayerOrigin;\n let scrollOffset;\n let planeOffset;\n // update position for all layers except the source one\n for (const layer of this.#layers) {\n if (typeof layer === 'undefined') {\n continue;\n }\n\n // update base offset (does not trigger redraw)\n let hasSetOffset = false;\n if (layer instanceof ViewLayer) {\n const vc = layer.getViewController();\n // origin0 should always be there\n const origin0 = vc.getOrigin();\n // depending on position, origin could be undefined\n const origin = vc.getOrigin(position);\n\n if (typeof baseViewLayerOrigin === 'undefined') {\n // first view layer, store origins\n baseViewLayerOrigin0 = origin0;\n baseViewLayerOrigin = origin;\n // no offset\n scrollOffset = new Vector3D(0, 0, 0);\n planeOffset = new Vector3D(0, 0, 0);\n } else {\n if (vc.isPositionInBounds(position) &&\n typeof origin !== 'undefined') {\n // TODO: compensate for possible different orientation between views\n const scrollDiff = baseViewLayerOrigin0.minus(origin0);\n scrollOffset = new Vector3D(\n scrollDiff.getX(), scrollDiff.getY(), scrollDiff.getZ());\n const planeDiff = baseViewLayerOrigin.minus(origin);\n planeOffset = new Vector3D(\n planeDiff.getX(), planeDiff.getY(), planeDiff.getZ());\n }\n }\n }\n\n // also set for draw layers\n // (should be next after a view layer)\n if (typeof scrollOffset !== 'undefined' &&\n typeof planeOffset !== 'undefined') {\n hasSetOffset =\n layer.setBaseOffset(\n scrollOffset, planeOffset,\n baseViewLayerOrigin, baseViewLayerOrigin0\n );\n }\n\n // reset to not propagate after draw layer\n // TODO: revise, could be unstable...\n if (layer instanceof DrawLayer) {\n scrollOffset = undefined;\n planeOffset = undefined;\n }\n\n // update position (triggers redraw)\n let hasSetPos = false;\n if (layer.getId() !== event.srclayerid) {\n hasSetPos = layer.setCurrentPosition(position, index);\n }\n\n // force redraw if needed\n if (!hasSetPos && hasSetOffset) {\n layer.draw();\n }\n }\n\n // re-start positionchange listeners\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n layer.addEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n layer.addEventListener('positionchange', this.#fireEvent);\n }\n }\n };\n\n /**\n * Calculate the div to world size ratio needed to fit\n * the largest data.\n *\n * @returns {number|undefined} The ratio.\n */\n getDivToWorldSizeRatio() {\n // check container\n if (this.#containerDiv.offsetWidth === 0 &&\n this.#containerDiv.offsetHeight === 0) {\n throw new Error('Cannot fit to zero sized container.');\n }\n // get max world size\n const maxWorldSize = this.getMaxWorldSize();\n if (typeof maxWorldSize === 'undefined') {\n return undefined;\n }\n // if the container has a width but no height,\n // resize it to follow the same ratio to completely\n // fill the div with the image\n if (this.#containerDiv.offsetHeight === 0) {\n const ratioX = this.#containerDiv.offsetWidth / maxWorldSize.x;\n const height = maxWorldSize.y * ratioX;\n this.#containerDiv.style.height = height + 'px';\n }\n // return best fit\n return Math.min(\n this.#containerDiv.offsetWidth / maxWorldSize.x,\n this.#containerDiv.offsetHeight / maxWorldSize.y\n );\n }\n\n /**\n * Fit to container: set the layers div to world size ratio.\n *\n * @param {number} divToWorldSizeRatio The ratio.\n */\n fitToContainer(divToWorldSizeRatio) {\n // get maximum world size\n const maxWorldSize = this.getMaxWorldSize();\n // exit if none\n if (typeof maxWorldSize === 'undefined') {\n return;\n }\n\n const containerSize = {\n x: this.#containerDiv.offsetWidth,\n y: this.#containerDiv.offsetHeight\n };\n // offset to keep data centered\n const fitOffset = {\n x: -0.5 *\n (containerSize.x - Math.floor(maxWorldSize.x * divToWorldSizeRatio)),\n y: -0.5 *\n (containerSize.y - Math.floor(maxWorldSize.y * divToWorldSizeRatio))\n };\n\n // apply to layers\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.fitToContainer(containerSize, divToWorldSizeRatio, fitOffset);\n }\n }\n\n // update crosshair\n if (this.#showCrosshair) {\n this.#showCrosshairDiv();\n }\n }\n\n /**\n * Get the largest data world (mm) size.\n *\n * @returns {Scalar2D|undefined} The largest size as {x,y}.\n */\n getMaxWorldSize() {\n let maxSize = {x: 0, y: 0};\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n const size = layer.getImageWorldSize();\n if (size.x > maxSize.x) {\n maxSize.x = size.x;\n }\n if (size.y > maxSize.y) {\n maxSize.y = size.y;\n }\n }\n }\n if (maxSize.x === 0 && maxSize.y === 0) {\n maxSize = undefined;\n }\n return maxSize;\n }\n\n /**\n * Flip all layers along the Z axis without offset compensation.\n */\n flipScaleZ() {\n this.#baseScale.z *= -1;\n this.setScale(this.#baseScale);\n }\n\n /**\n * Add scale to the layers. Scale cannot go lower than 0.1.\n *\n * @param {number} scaleStep The scale to add.\n * @param {Point3D} center The scale center Point3D.\n */\n addScale(scaleStep, center) {\n const newScale = {\n x: this.#scale.x * (1 + scaleStep),\n y: this.#scale.y * (1 + scaleStep),\n z: this.#scale.z * (1 + scaleStep)\n };\n this.setScale(newScale, center);\n }\n\n /**\n * Set the layers' scale.\n *\n * @param {Scalar3D} newScale The scale to apply as {x,y,z}.\n * @param {Point3D} [center] The scale center Point3D.\n * @fires LayerGroup#zoomchange\n */\n setScale(newScale, center) {\n this.#scale = newScale;\n // apply to layers\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.setScale(this.#scale, center);\n }\n }\n\n // event value\n const value = [\n newScale.x,\n newScale.y,\n newScale.z\n ];\n if (typeof center !== 'undefined') {\n value.push(center.getX());\n value.push(center.getY());\n value.push(center.getZ());\n }\n\n /**\n * Zoom change event.\n *\n * @event LayerGroup#zoomchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'zoomchange',\n value: value\n });\n }\n\n /**\n * Add translation to the layers.\n *\n * @param {Scalar3D} translation The translation as {x,y,z}.\n */\n addTranslation(translation) {\n this.setOffset({\n x: this.#offset.x - translation.x,\n y: this.#offset.y - translation.y,\n z: this.#offset.z - translation.z\n });\n }\n\n /**\n * Set the layers' offset.\n *\n * @param {Scalar3D} newOffset The offset as {x,y,z}.\n * @fires LayerGroup#offsetchange\n */\n setOffset(newOffset) {\n // store\n this.#offset = newOffset;\n // apply to layers\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.setOffset(this.#offset);\n }\n }\n\n /**\n * Offset change event.\n *\n * @event LayerGroup#offsetchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'offsetchange',\n value: [\n this.#offset.x,\n this.#offset.y,\n this.#offset.z\n ]\n });\n }\n\n /**\n * Reset the stage to its initial scale and no offset.\n */\n reset() {\n this.setScale(this.#baseScale);\n this.setOffset({x: 0, y: 0, z: 0});\n }\n\n /**\n * Draw the layer.\n */\n draw() {\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.draw();\n }\n }\n }\n\n /**\n * Display the layer.\n *\n * @param {boolean} flag Whether to display the layer or not.\n */\n display(flag) {\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.display(flag);\n }\n }\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // LayerGroup class\n","import {Index} from '../math/index';\nimport {Vector3D} from '../math/vector';\nimport {Point3D} from '../math/point';\nimport {isIdentityMat33} from '../math/matrix';\nimport {Size} from '../image/size';\nimport {Spacing} from '../image/spacing';\nimport {Image} from '../image/image';\nimport {Geometry} from '../image/geometry';\nimport {PlaneHelper} from '../image/planeHelper';\nimport {\n getSliceIterator,\n getIteratorValues,\n getRegionSliceIterator,\n getVariableRegionSliceIterator\n} from '../image/iterator';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {View} from '../image/view';\nimport {WindowLevel} from '../image/windowLevel';\nimport {Point, Point2D} from '../math/point';\nimport {Scalar2D} from '../math/scalar';\nimport {Matrix33} from '../math/matrix';\nimport {ViewLayer} from '../gui/viewLayer';\n/* eslint-enable no-unused-vars */\n\n/**\n * View controller.\n */\nexport class ViewController {\n\n /**\n * Associated View.\n *\n * @type {View}\n */\n #view;\n\n /**\n * Plane helper.\n *\n * @type {PlaneHelper}\n */\n #planeHelper;\n\n /**\n * Third dimension player ID (created by setInterval).\n *\n * @type {number|undefined}\n */\n #playerID;\n\n /**\n * Is DICOM seg mask flag.\n *\n * @type {boolean}\n */\n #isMask = false;\n\n /**\n * @param {View} view The associated view.\n */\n constructor(view) {\n // check view\n if (typeof view.getImage() === 'undefined') {\n throw new Error('View does not have an image, cannot setup controller');\n }\n\n this.#view = view;\n\n // setup the plane helper\n this.#planeHelper = new PlaneHelper(\n view.getImage().getGeometry().getRealSpacing(),\n view.getImage().getGeometry().getOrientation(),\n view.getOrientation()\n );\n\n // mask segment helper\n if (view.getImage().getMeta().Modality === 'SEG') {\n this.#isMask = true;\n }\n }\n\n /**\n * Get the plane helper.\n *\n * @returns {PlaneHelper} The helper.\n */\n getPlaneHelper() {\n return this.#planeHelper;\n }\n\n /**\n * Check is the associated image is a mask.\n *\n * @returns {boolean} True if the associated image is a mask.\n */\n isMask() {\n return this.#isMask;\n }\n\n /**\n * Initialise the controller.\n */\n initialise() {\n // set window/level to first preset\n this.setWindowLevelPresetById(0);\n // default position\n this.setCurrentPosition(this.getPositionFromPlanePoint(\n new Point2D(0, 0)\n ));\n }\n\n /**\n * Get the image modality.\n *\n * @returns {string} The modality.\n */\n getModality() {\n return this.#view.getImage().getMeta().Modality;\n }\n\n /**\n * Get the window/level presets names.\n *\n * @returns {string[]} The presets names.\n */\n getWindowLevelPresetsNames() {\n return this.#view.getWindowPresetsNames();\n }\n\n /**\n * Add window/level presets to the view.\n *\n * @param {object} presets A preset object.\n * @returns {object} The list of presets.\n */\n addWindowLevelPresets(presets) {\n return this.#view.addWindowPresets(presets);\n }\n\n /**\n * Set the window level to the preset with the input name.\n *\n * @param {string} name The name of the preset to activate.\n */\n setWindowLevelPreset(name) {\n this.#view.setWindowLevelPreset(name);\n }\n\n /**\n * Set the window level to the preset with the input id.\n *\n * @param {number} id The id of the preset to activate.\n */\n setWindowLevelPresetById(id) {\n this.#view.setWindowLevelPresetById(id);\n }\n\n /**\n * Check if the controller is playing.\n *\n * @returns {boolean} True if the controler is playing.\n */\n isPlaying() {\n return (typeof this.#playerID !== 'undefined');\n }\n\n /**\n * Get the current position.\n *\n * @returns {Point} The position.\n */\n getCurrentPosition() {\n return this.#view.getCurrentPosition();\n }\n\n /**\n * Get the current index.\n *\n * @returns {Index} The current index.\n */\n getCurrentIndex() {\n return this.#view.getCurrentIndex();\n }\n\n /**\n * Get the SOP image UID of the current image.\n *\n * @returns {string} The UID.\n */\n getCurrentImageUid() {\n return this.#view.getCurrentImageUid();\n }\n\n /**\n * Get the image origin index for a image UID.\n *\n * @param {string} uid The UID.\n * @returns {Index|undefined} The origin index.\n */\n getOriginIndexForImageUid(uid) {\n return this.#view.getOriginIndexForImageUid(uid);\n }\n\n /**\n * Get the current oriented index.\n *\n * @returns {Index} The index.\n */\n getCurrentOrientedIndex() {\n let res = this.#view.getCurrentIndex();\n if (typeof this.#view.getOrientation() !== 'undefined') {\n // view oriented => image de-oriented\n const vector = this.#planeHelper.getImageDeOrientedVector3D(\n new Vector3D(res.get(0), res.get(1), res.get(2))\n );\n res = new Index([\n vector.getX(), vector.getY(), vector.getZ()\n ]);\n }\n return res;\n }\n\n /**\n * Get the scroll index.\n *\n * @returns {number} The index.\n */\n getScrollIndex() {\n return this.#view.getScrollIndex();\n }\n\n /**\n * Get the current scroll index value.\n *\n * @returns {object} The value.\n */\n getCurrentScrollIndexValue() {\n return this.#view.getCurrentIndex().get(this.#view.getScrollIndex());\n }\n\n /**\n * Get the first origin or at a given position.\n *\n * @param {Point} [position] Opitonal position.\n * @returns {Point3D} The origin.\n */\n getOrigin(position) {\n return this.#view.getOrigin(position);\n }\n\n /**\n * Get the current scroll position value.\n *\n * @returns {object} The value.\n */\n getCurrentScrollPosition() {\n const scrollIndex = this.#view.getScrollIndex();\n return this.#view.getCurrentPosition().get(scrollIndex);\n }\n\n /**\n * Generate display image data to be given to a canvas.\n *\n * @param {ImageData} array The array to fill in.\n * @param {Index} [index] Optional index at which to generate,\n * otherwise generates at current index.\n */\n generateImageData(array, index) {\n this.#view.generateImageData(array, index);\n }\n\n /**\n * Set the associated image.\n *\n * @param {Image} img The associated image.\n */\n setImage(img) {\n this.#view.setImage(img);\n }\n\n /**\n * Get the current view (2D) spacing.\n *\n * @returns {Scalar2D} The spacing as a 2D array.\n */\n get2DSpacing() {\n const spacing = this.#view.getImage().getGeometry().getSpacing(\n this.#view.getOrientation());\n return spacing.get2D();\n }\n\n /**\n * Get the image rescaled value at the input position.\n *\n * @param {Point} position The input position.\n * @returns {number|undefined} The image value or undefined if out of bounds\n * or no quantifiable (for ex RGB).\n */\n getRescaledImageValue(position) {\n const image = this.#view.getImage();\n if (!image.canQuantify()) {\n return;\n }\n const geometry = image.getGeometry();\n const index = geometry.worldToIndex(position);\n let value;\n if (geometry.isIndexInBounds(index)) {\n value = image.getRescaledValueAtIndex(index);\n }\n return value;\n }\n\n /**\n * Get the image pixel unit.\n *\n * @returns {string} The unit.\n */\n getPixelUnit() {\n return this.#view.getImage().getMeta().pixelUnit;\n }\n\n /**\n * Get the image study instance UID.\n *\n * @returns {string} The UID.\n */\n getStudyInstanceUID() {\n return this.#view.getImage().getMeta().StudyInstanceUID;\n }\n\n /**\n * Get the image series instance UID.\n *\n * @returns {string} The UID.\n */\n getSeriesInstanceUID() {\n return this.#view.getImage().getMeta().SeriesInstanceUID;\n }\n\n\n /**\n * Extract a slice from an image at the given index and orientation.\n *\n * @param {Image} image The image to parse.\n * @param {Index} index The current index.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {Matrix33} orientation The desired orientation.\n * @returns {Image} The extracted slice.\n */\n #getSlice(image, index, isRescaled, orientation) {\n // generate slice values\n const sliceIter = getSliceIterator(\n image,\n index,\n isRescaled,\n orientation\n );\n const sliceValues = getIteratorValues(sliceIter);\n // oriented geometry\n const orientedSize = image.getGeometry().getSize(orientation);\n const sizeValues = orientedSize.getValues();\n sizeValues[2] = 1;\n const sliceSize = new Size(sizeValues);\n const orientedSpacing = image.getGeometry().getSpacing(orientation);\n const spacingValues = orientedSpacing.getValues();\n spacingValues[2] = 1;\n const sliceSpacing = new Spacing(spacingValues);\n const sliceOrigin = new Point3D(0, 0, 0);\n const sliceGeometry =\n new Geometry(sliceOrigin, sliceSize, sliceSpacing);\n // slice image\n // @ts-ignore\n return new Image(sliceGeometry, sliceValues);\n }\n\n /**\n * Get some values from the associated image in a region.\n *\n * @param {Point2D} min Minimum point.\n * @param {Point2D} max Maximum point.\n * @returns {Array} A list of values.\n */\n getImageRegionValues(min, max) {\n let image = this.#view.getImage();\n const orientation = this.#view.getOrientation();\n let currentIndex = this.getCurrentIndex();\n let rescaled = true;\n\n // create oriented slice if needed\n if (!isIdentityMat33(orientation)) {\n image = this.#getSlice(image, currentIndex, rescaled, orientation);\n // update position\n currentIndex = new Index([0, 0, 0]);\n rescaled = false;\n }\n\n // get region values\n const iter = getRegionSliceIterator(\n image, currentIndex, rescaled, min, max);\n let values = [];\n if (iter) {\n values = getIteratorValues(iter);\n }\n return values;\n }\n\n /**\n * Get some values from the associated image in variable regions.\n *\n * @param {number[][][]} regions A list of [x, y] pairs (min, max).\n * @returns {Array} A list of values.\n */\n getImageVariableRegionValues(regions) {\n let image = this.#view.getImage();\n const orientation = this.#view.getOrientation();\n let currentIndex = this.getCurrentIndex();\n let rescaled = true;\n\n // create oriented slice if needed\n if (!isIdentityMat33(orientation)) {\n image = this.#getSlice(image, currentIndex, rescaled, orientation);\n // update position\n currentIndex = new Index([0, 0, 0]);\n rescaled = false;\n }\n\n // get region values\n const iter = getVariableRegionSliceIterator(\n image, currentIndex, rescaled, regions);\n let values = [];\n if (iter) {\n values = getIteratorValues(iter);\n }\n return values;\n }\n\n /**\n * Can the image values be quantified?\n *\n * @returns {boolean} True if possible.\n */\n canQuantifyImage() {\n return this.#view.getImage().canQuantify();\n }\n\n /**\n * Can window and level be applied to the data?\n *\n * @returns {boolean} True if possible.\n * @deprecated Please use isMonochrome instead.\n */\n canWindowLevel() {\n return this.isMonochrome();\n }\n\n /**\n * Is the data monochrome.\n *\n * @returns {boolean} True if the data is monochrome.\n */\n isMonochrome() {\n return this.#view.getImage().isMonochrome();\n }\n\n /**\n * Can the data be scrolled?\n *\n * @returns {boolean} True if the data has either the third dimension\n * or above greater than one.\n */\n canScroll() {\n return this.#view.getImage().canScroll(this.#view.getOrientation());\n }\n\n /**\n * Get the oriented image size.\n *\n * @returns {Size} The size.\n */\n getImageSize() {\n return this.#view.getImage().getGeometry().getSize(\n this.#view.getOrientation());\n }\n\n\n /**\n * Is the data size larger than one in the given dimension?\n *\n * @param {number} dim The dimension.\n * @returns {boolean} True if the image size is larger than one\n * in the given dimension.\n */\n moreThanOne(dim) {\n return this.getImageSize().moreThanOne(dim);\n }\n\n /**\n * Get the image world (mm) 2D size.\n *\n * @returns {Scalar2D} The 2D size as {x,y}.\n */\n getImageWorldSize() {\n const geometry = this.#view.getImage().getGeometry();\n const size = geometry.getSize(this.#view.getOrientation()).get2D();\n const spacing = geometry.getSpacing(this.#view.getOrientation()).get2D();\n return {\n x: size.x * spacing.x,\n y: size.y * spacing.y\n };\n }\n\n /**\n * Get the image rescaled data range.\n *\n * @returns {object} The range as {min, max}.\n */\n getImageRescaledDataRange() {\n return this.#view.getImage().getRescaledDataRange();\n }\n\n /**\n * Compare the input meta data to the associated image one.\n *\n * @param {object} meta The meta data.\n * @returns {boolean} True if the associated image has equal meta data.\n */\n equalImageMeta(meta) {\n const imageMeta = this.#view.getImage().getMeta();\n // loop through input meta keys\n const metaKeys = Object.keys(meta);\n for (let i = 0; i < metaKeys.length; ++i) {\n const metaKey = metaKeys[i];\n if (typeof imageMeta[metaKey] === 'undefined') {\n return false;\n }\n if (imageMeta[metaKey] !== meta[metaKey]) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Check if the current position (default) or\n * the provided position is in bounds.\n *\n * @param {Point} [position] Optional position.\n * @returns {boolean} True is the position is in bounds.\n */\n isPositionInBounds(position) {\n return this.#view.isPositionInBounds(position);\n }\n\n /**\n * Set the current position.\n *\n * @param {Point} pos The position.\n * @param {boolean} [silent] If true, does not fire a\n * positionchange event.\n * @returns {boolean} False if not in bounds.\n */\n setCurrentPosition(pos, silent) {\n return this.#view.setCurrentPosition(pos, silent);\n }\n\n /**\n * Get a world position from a 2D plane position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point} The associated position.\n */\n getPositionFromPlanePoint(point2D) {\n // keep third direction\n const k = this.getCurrentScrollIndexValue();\n const planePoint = new Point3D(point2D.getX(), point2D.getY(), k);\n // de-orient\n const point = this.#planeHelper.getImageOrientedPoint3D(planePoint);\n // ~indexToWorld to not loose precision\n const geometry = this.#view.getImage().getGeometry();\n const point3D = geometry.pointToWorld(point);\n // merge with current position to keep extra dimensions\n return this.getCurrentPosition().mergeWith3D(point3D);\n }\n\n /**\n * Get a 2D plane position from a world position.\n *\n * @param {Point} point The 3D position.\n * @returns {Point2D} The 2D position.\n */\n getPlanePositionFromPosition(point) {\n // orient\n const geometry = this.#view.getImage().getGeometry();\n // ~worldToIndex to not loose precision\n const point3D = geometry.worldToPoint(point);\n const planePoint = this.#planeHelper.getImageDeOrientedPoint3D(point3D);\n // return\n return new Point2D(\n planePoint.getX(),\n planePoint.getY(),\n );\n }\n\n /**\n * Set the current index.\n *\n * @param {Index} index The index.\n * @param {boolean} [silent] If true, does not fire a positionchange event.\n * @returns {boolean} False if not in bounds.\n */\n setCurrentIndex(index, silent) {\n return this.#view.setCurrentIndex(index, silent);\n }\n\n /**\n * Get a plane 3D position from a plane 2D position: does not compensate\n * for the image origin. Needed for setting the scale center...\n *\n * @param {Point2D} point2D The 2D position.\n * @returns {Point3D} The 3D point.\n */\n getPlanePositionFromPlanePoint(point2D) {\n // keep third direction\n const k = this.getCurrentScrollIndexValue();\n const planePoint = new Point3D(point2D.getX(), point2D.getY(), k);\n // de-orient\n const point = this.#planeHelper.getTargetDeOrientedPoint3D(planePoint);\n // ~indexToWorld to not loose precision\n const geometry = this.#view.getImage().getGeometry();\n const spacing = geometry.getRealSpacing();\n return new Point3D(\n point.getX() * spacing.get(0),\n point.getY() * spacing.get(1),\n point.getZ() * spacing.get(2));\n }\n\n /**\n * Get a 3D offset from a plane one.\n *\n * @param {Scalar2D} offset2D The plane offset as {x,y}.\n * @returns {Vector3D} The 3D world offset.\n */\n getOffset3DFromPlaneOffset(offset2D) {\n return this.#planeHelper.getOffset3DFromPlaneOffset(offset2D);\n }\n\n /**\n * Get the current index incremented in the input direction.\n *\n * @param {number} dim The direction in which to increment.\n * @returns {Index} The resulting index.\n */\n #getIncrementIndex(dim) {\n const index = this.getCurrentIndex();\n const values = new Array(index.length());\n values.fill(0);\n if (dim < values.length) {\n values[dim] = 1;\n } else {\n console.warn('Cannot increment given index: ', dim, values.length);\n }\n const incr = new Index(values);\n return index.add(incr);\n }\n\n /**\n * Get the current index decremented in the input direction.\n *\n * @param {number} dim The direction in which to decrement.\n * @returns {Index} The resulting index.\n */\n #getDecrementIndex(dim) {\n const index = this.getCurrentIndex();\n const values = new Array(index.length());\n values.fill(0);\n if (dim < values.length) {\n values[dim] = -1;\n } else {\n console.warn('Cannot decrement given index: ', dim, values.length);\n }\n const incr = new Index(values);\n return index.add(incr);\n }\n\n /**\n * Get the current index incremented in the scroll direction.\n *\n * @returns {Index} The resulting index.\n */\n #getIncrementScrollIndex() {\n return this.#getIncrementIndex(this.getScrollIndex());\n }\n\n /**\n * Get the current index decremented in the scroll direction.\n *\n * @returns {Index} The resulting index.\n */\n #getDecrementScrollIndex() {\n return this.#getDecrementIndex(this.getScrollIndex());\n }\n\n /**\n * Get the current position incremented in the input direction.\n *\n * @param {number} dim The direction in which to increment.\n * @returns {Point} The resulting point.\n */\n getIncrementPosition(dim) {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getIncrementIndex(dim));\n }\n\n /**\n * Get the current position decremented in the input direction.\n *\n * @param {number} dim The direction in which to decrement.\n * @returns {Point} The resulting point.\n */\n getDecrementPosition(dim) {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getDecrementIndex(dim));\n }\n\n /**\n * Get the current position decremented in the scroll direction.\n *\n * @returns {Point} The resulting point.\n */\n getIncrementScrollPosition() {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getIncrementScrollIndex());\n }\n\n /**\n * Get the current position decremented in the scroll direction.\n *\n * @returns {Point} The resulting point.\n */\n getDecrementScrollPosition() {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getDecrementScrollIndex());\n }\n\n /**\n * Increment the provided dimension.\n *\n * @param {number} dim The dimension to increment.\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n incrementIndex(dim, silent) {\n return this.setCurrentIndex(this.#getIncrementIndex(dim), silent);\n }\n\n /**\n * Decrement the provided dimension.\n *\n * @param {number} dim The dimension to increment.\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n decrementIndex(dim, silent) {\n return this.setCurrentIndex(this.#getDecrementIndex(dim), silent);\n }\n\n /**\n * Decrement the scroll dimension index.\n *\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n decrementScrollIndex(silent) {\n return this.setCurrentIndex(this.#getDecrementScrollIndex(), silent);\n }\n\n /**\n * Increment the scroll dimension index.\n *\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n incrementScrollIndex(silent) {\n return this.setCurrentIndex(this.#getIncrementScrollIndex(), silent);\n }\n\n /**\n * Scroll play: loop through all slices.\n */\n play() {\n // ensure data is scrollable: dim >= 3\n if (!this.canScroll()) {\n return;\n }\n if (typeof this.#playerID === 'undefined') {\n const image = this.#view.getImage();\n const recommendedDisplayFrameRate =\n image.getMeta().RecommendedDisplayFrameRate;\n const milliseconds = this.#view.getPlaybackMilliseconds(\n recommendedDisplayFrameRate);\n const size = image.getGeometry().getSize();\n const canScroll3D = size.canScroll3D();\n\n this.#playerID = window.setInterval(() => {\n let canDoMore = false;\n if (canScroll3D) {\n canDoMore = this.incrementScrollIndex();\n } else {\n canDoMore = this.incrementIndex(3);\n }\n // end of scroll, loop back\n if (!canDoMore) {\n const pos1 = this.getCurrentIndex();\n const values = pos1.getValues();\n const orientation = this.#view.getOrientation();\n if (canScroll3D) {\n values[orientation.getThirdColMajorDirection()] = 0;\n } else {\n values[3] = 0;\n }\n const index = new Index(values);\n const geometry = this.#view.getImage().getGeometry();\n this.setCurrentPosition(geometry.indexToWorld(index));\n }\n }, milliseconds);\n } else {\n this.stop();\n }\n }\n\n /**\n * Stop scroll playing.\n */\n stop() {\n if (typeof this.#playerID !== 'undefined') {\n clearInterval(this.#playerID);\n this.#playerID = undefined;\n }\n }\n\n /**\n * Get the window/level.\n *\n * @returns {WindowLevel} The window and level.\n */\n getWindowLevel() {\n return this.#view.getWindowLevel();\n }\n\n /**\n * Get the current window level preset name.\n *\n * @returns {string} The preset name.\n */\n getCurrentWindowPresetName() {\n return this.#view.getCurrentWindowPresetName();\n }\n\n /**\n * Set the window and level.\n *\n * @param {WindowLevel} wl The window and level.\n */\n setWindowLevel(wl) {\n this.#view.setWindowLevel(wl);\n }\n\n /**\n * Get the colour map.\n *\n * @returns {string} The colour map name.\n */\n getColourMap() {\n return this.#view.getColourMap();\n }\n\n /**\n * Set the colour map.\n *\n * @param {string} name The colour map name.\n */\n setColourMap(name) {\n this.#view.setColourMap(name);\n }\n\n /**\n * @callback alphaFn\n * @param {number[]|number} value The pixel value.\n * @param {number} index The values' index.\n * @returns {number} The opacity of the input value.\n */\n\n /**\n * Set the view per value alpha function.\n *\n * @param {alphaFn} func The function.\n */\n setViewAlphaFunction(func) {\n this.#view.setAlphaFunction(func);\n }\n\n /**\n * Bind the view image to the provided layer.\n *\n * @param {ViewLayer} viewLayer The layer to bind.\n */\n bindImageAndLayer(viewLayer) {\n const image = this.#view.getImage();\n image.addEventListener('imagecontentchange',\n viewLayer.onimagecontentchange\n );\n image.addEventListener('imagegeometrychange',\n viewLayer.onimagegeometrychange\n );\n }\n\n /**\n * Unbind the view image to the provided layer.\n *\n * @param {ViewLayer} viewLayer The layer to bind.\n */\n unbindImageAndLayer(viewLayer) {\n const image = this.#view.getImage();\n image.removeEventListener('imagecontentchange',\n viewLayer.onimagecontentchange\n );\n image.removeEventListener('imagegeometrychange',\n viewLayer.onimagegeometrychange\n );\n }\n\n} // class ViewController\n","/**\n * Namespace for translation function\n * (in a namespace to allow for override from client).\n */\nexport const i18n = {\n\n /**\n * Get the translated text.\n *\n * @param {string} key The key to the text entry.\n * @returns {string|undefined} The translated text.\n */\n t(key) {\n // defaut expects something like 'unit.cm2'\n const unit = {\n mm: 'mm',\n cm2: 'cm²',\n degree: '°'\n };\n const props = key.split('.');\n if (props.length !== 2) {\n throw new Error('Unexpected translation key length.');\n }\n if (props[0] !== 'unit') {\n throw new Error('Unexpected translation key prefix.');\n }\n return unit[props[1]];\n }\n\n};\n","import {i18n} from '../utils/i18n';\nimport {getStats} from './stats';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mulitply the three inputs if the last two are not null.\n *\n * @param {number} a The first input.\n * @param {number} b The second input.\n * @param {number} c The third input.\n * @returns {number} The multiplication of the three inputs or\n * null if one of the last two is null.\n */\nfunction mulABC(a, b, c) {\n let res = null;\n if (b !== null && c !== null) {\n res = a * b * c;\n }\n return res;\n}\n\n/**\n * Circle shape.\n */\nexport class Circle {\n\n /**\n * Circle centre.\n *\n * @type {Point2D}\n */\n #centre;\n\n /**\n * Circle radius.\n *\n * @type {number}\n */\n #radius;\n\n /**\n * @param {Point2D} centre A Point2D representing the centre\n * of the circle.\n * @param {number} radius The radius of the circle.\n */\n constructor(centre, radius) {\n this.#centre = centre;\n this.#radius = radius;\n }\n\n /**\n * Get the centre (point) of the circle.\n *\n * @returns {Point2D} The center (point) of the circle.\n */\n getCenter() {\n return this.#centre;\n }\n\n /**\n * Get the radius of the circle.\n *\n * @returns {number} The radius of the circle.\n */\n getRadius() {\n return this.#radius;\n }\n\n\n /**\n * Check for equality.\n *\n * @param {Circle} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getCenter().equals(rhs.getCenter()) &&\n this.getRadius() === rhs.getRadius();\n }\n\n /**\n * Get the surface of the circle.\n *\n * @returns {number} The surface of the circle.\n */\n getSurface() {\n return Math.PI * this.getRadius() * this.getRadius();\n }\n\n /**\n * Get the surface of the circle according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The surface of the circle multiplied by the given\n * spacing or null for null spacings.\n */\n getWorldSurface(spacing2D) {\n return mulABC(this.getSurface(), spacing2D.x, spacing2D.y);\n }\n\n /**\n * Get the rounded limits of the circle.\n *\n * See: {@link https://en.wikipedia.org/wiki/Circle#Equations}.\n *\n * Circle formula: `x*x + y*y = r*r`.\n *\n * Implies: `y = (+-) sqrt(r*r - x*x)`.\n *\n * @returns {number[][][]} The rounded limits:\n * list of [x, y] pairs (min, max).\n */\n getRound() {\n const centerX = this.getCenter().getX();\n const centerY = this.getCenter().getY();\n const radius = this.getRadius();\n const rSquare = Math.pow(radius, 2);\n // Y bounds\n const minY = centerY - radius;\n const maxY = centerY + radius;\n const regions = [];\n // loop through lines and store limits\n for (let y = minY; y < maxY; ++y) {\n const diff = rSquare - Math.pow(y - centerY, 2);\n // remove small values (possibly negative)\n if (Math.abs(diff) < 1e-7) {\n continue;\n }\n const transX = Math.sqrt(diff);\n // remove small values\n if (transX < 0.5) {\n continue;\n }\n regions.push([\n [Math.round(centerX - transX), Math.round(y)],\n [Math.round(centerX + transX), Math.round(y)]\n ]);\n }\n return regions;\n }\n\n /**\n * Quantify an circle according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {object} A quantification object.\n */\n quantify(viewController, flags) {\n const quant = {};\n // shape quantification\n const spacing2D = viewController.get2DSpacing();\n quant.radius = {\n value: this.getRadius() * spacing2D.x,\n unit: i18n.t('unit.mm')\n };\n const surface = this.getWorldSurface(spacing2D);\n if (surface !== null) {\n quant.surface = {value: surface / 100, unit: i18n.t('unit.cm2')};\n }\n\n // pixel values quantification\n if (viewController.canQuantifyImage()) {\n const regions = this.getRound();\n if (regions.length !== 0) {\n const values = viewController.getImageVariableRegionValues(regions);\n const unit = viewController.getPixelUnit();\n const quantif = getStats(values, flags);\n quant.min = {value: quantif.min, unit: unit};\n quant.max = {value: quantif.max, unit: unit};\n quant.mean = {value: quantif.mean, unit: unit};\n quant.stdDev = {value: quantif.stdDev, unit: unit};\n if (typeof quantif.median !== 'undefined') {\n quant.median = {value: quantif.median, unit: unit};\n }\n if (typeof quantif.p25 !== 'undefined') {\n quant.p25 = {value: quantif.p25, unit: unit};\n }\n if (typeof quantif.p75 !== 'undefined') {\n quant.p75 = {value: quantif.p75, unit: unit};\n }\n }\n }\n\n // return\n return quant;\n }\n\n} // Circle class\n","// linting 'type {Object.}' will give:\n// warning Use object shorthand or index signatures instead of `Object`,\n// e.g., `{[key: string]: string}` jsdoc/check-types\n// pb: jsdoc does not support the object shorthand\n// and ignoring will give vscode warning since the doc linting is not\n// activated by default.\n\n// Overridable default object.\nexport const defaults = {\n /**\n * List of default window level presets.\n *\n * @type {Object.>}\n */\n labelText: {\n arrow: {\n '*': ''\n },\n circle: {\n '*': '{surface}'\n },\n ellipse: {\n '*': '{surface}'\n },\n freeHand: {\n '*': ''\n },\n protractor: {\n '*': '{angle}'\n },\n rectangle: {\n '*': '{surface}'\n },\n roi: {\n '*': ''\n },\n ruler: {\n '*': '{length}'\n }\n }\n};\n","import {getShadowColour} from '../utils/colour';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Style class.\n */\nexport class Style {\n /**\n * Font size.\n *\n * @type {number}\n */\n #fontSize = 10;\n\n /**\n * Font family.\n *\n * @type {string}\n */\n #fontFamily = 'Verdana';\n\n /**\n * Text colour.\n *\n * @type {string}\n */\n #textColour = '#fff';\n\n /**\n * Line colour.\n *\n * @type {string}\n */\n #lineColour = '#ffff80';\n\n /**\n * Base scale.\n *\n * @type {Scalar2D}\n */\n #baseScale = {x: 1, y: 1};\n\n /**\n * Zoom scale.\n *\n * @type {Scalar2D}\n */\n #zoomScale = {x: 1, y: 1};\n\n /**\n * Stroke width.\n *\n * @type {number}\n */\n #strokeWidth = 2;\n\n /**\n * Shadow offset.\n *\n * @type {Scalar2D}\n */\n #shadowOffset = {x: 0.25, y: 0.25};\n\n /**\n * Tag opacity.\n *\n * @type {number}\n */\n #tagOpacity = 0.2;\n\n /**\n * Text padding.\n *\n * @type {number}\n */\n #textPadding = 3;\n\n /**\n * Get the font family.\n *\n * @returns {string} The font family.\n */\n getFontFamily() {\n return this.#fontFamily;\n }\n\n /**\n * Get the font size.\n *\n * @returns {number} The font size.\n */\n getFontSize() {\n return this.#fontSize;\n }\n\n /**\n * Get the stroke width.\n *\n * @returns {number} The stroke width.\n */\n getStrokeWidth() {\n return this.#strokeWidth;\n }\n\n /**\n * Get the text colour.\n *\n * @returns {string} The text colour.\n */\n getTextColour() {\n return this.#textColour;\n }\n\n /**\n * Get the line colour.\n *\n * @returns {string} The line colour.\n */\n getLineColour() {\n return this.#lineColour;\n }\n\n /**\n * Set the line colour.\n *\n * @param {string} colour The line colour.\n */\n setLineColour(colour) {\n this.#lineColour = colour;\n }\n\n /**\n * Set the base scale.\n *\n * @param {Scalar2D} scale The scale as {x,y}.\n */\n setBaseScale(scale) {\n this.#baseScale = scale;\n }\n\n /**\n * Set the zoom scale.\n *\n * @param {Scalar2D} scale The scale as {x,y}.\n */\n setZoomScale(scale) {\n this.#zoomScale = scale;\n }\n\n /**\n * Get the base scale.\n *\n * @returns {Scalar2D} The scale as {x,y}.\n */\n getBaseScale() {\n return this.#baseScale;\n }\n\n /**\n * Get the zoom scale.\n *\n * @returns {Scalar2D} The scale as {x,y}.\n */\n getZoomScale() {\n return this.#zoomScale;\n }\n\n /**\n * Scale an input value using the base scale.\n *\n * @param {number} value The value to scale.\n * @returns {number} The scaled value.\n */\n scale(value) {\n // TODO: 2D?\n return value / this.#baseScale.x;\n }\n\n /**\n * Apply zoom scale on an input value.\n *\n * @param {number} value The value to scale.\n * @returns {Scalar2D} The scaled value as {x,y}.\n */\n applyZoomScale(value) {\n // times 2 so that the font size 10 looks like a 10...\n // (same logic as in the DrawController::updateLabelScale)\n return {\n x: 2 * value / this.#zoomScale.x,\n y: 2 * value / this.#zoomScale.y\n };\n }\n\n /**\n * Get the shadow offset.\n *\n * @returns {Scalar2D} The offset as {x,y}.\n */\n getShadowOffset() {\n return this.#shadowOffset;\n }\n\n /**\n * Get the tag opacity.\n *\n * @returns {number} The opacity.\n */\n getTagOpacity() {\n return this.#tagOpacity;\n }\n\n /**\n * Get the text padding.\n *\n * @returns {number} The padding.\n */\n getTextPadding() {\n return this.#textPadding;\n }\n\n /**\n * Get the font definition string.\n *\n * @returns {string} The font definition string.\n */\n getFontStr() {\n return ('normal ' + this.getFontSize() + 'px sans-serif');\n }\n\n /**\n * Get the line height.\n *\n * @returns {number} The line height.\n */\n getLineHeight() {\n return (this.getFontSize() + this.getFontSize() / 5);\n }\n\n /**\n * Get the font size scaled to the display.\n *\n * @returns {number} The scaled font size.\n */\n getScaledFontSize() {\n return this.scale(this.getFontSize());\n }\n\n /**\n * Get the stroke width scaled to the display.\n *\n * @returns {number} The scaled stroke width.\n */\n getScaledStrokeWidth() {\n return this.scale(this.getStrokeWidth());\n }\n\n /**\n * Get the shadow line colour.\n *\n * @returns {string} The shadow line colour.\n */\n getShadowLineColour() {\n return getShadowColour(this.getLineColour());\n }\n\n} // class Style\n","import {Point2D} from '../math/point';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\nimport {Style} from '../gui/style';\n// external\nimport Konva from 'konva';\n/* eslint-enable no-unused-vars */\n\n/**\n * Is an input node's name 'label'.\n *\n * @param {Konva.Node} node A Konva node.\n * @returns {boolean} True if the node's name is 'label'.\n */\nexport function isNodeNameLabel(node) {\n return node.name() === 'label';\n}\n\n/**\n * Is an input node's name 'shape'.\n *\n * @param {Konva.Node} node A Konva node.\n * @returns {boolean} True if the node's name is 'shape'.\n */\nexport function isNodeNameShape(node) {\n return node.name() === 'shape';\n}\n\n/**\n * Is an input node a position node.\n *\n * @param {Konva.Node} node A Konva node.\n * @returns {boolean} True if the node's name is 'position-group'.\n */\nexport function isPositionNode(node) {\n return node.name() === 'position-group';\n}\n\n/**\n * @callback testFn\n * @param {Konva.Node} node The node.\n * @returns {boolean} True if the node passes the test.\n */\n\n/**\n * Get a lambda to check a node's id.\n *\n * @param {string} id The id to check.\n * @returns {testFn} A function to check a node's id.\n */\nexport function isNodeWithId(id) {\n return function (node) {\n return node.id() === id;\n };\n}\n\n/**\n * Draw Debug flag.\n */\nexport const DRAW_DEBUG = false;\n\n/**\n * Get the default anchor shape.\n *\n * @param {number} x The X position.\n * @param {number} y The Y position.\n * @param {string} id The shape id.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse} The default anchor shape.\n */\nexport function getDefaultAnchor(x, y, id, style) {\n const radius = style.applyZoomScale(3);\n const absRadius = {\n x: Math.abs(radius.x),\n y: Math.abs(radius.y)\n };\n return new Konva.Ellipse({\n x: x,\n y: y,\n stroke: '#999',\n fill: 'rgba(100,100,100,0.7',\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n radius: absRadius,\n radiusX: absRadius.x,\n radiusY: absRadius.y,\n name: 'anchor',\n id: id.toString(),\n dragOnTop: false,\n draggable: true,\n visible: false\n });\n}\n\n/**\n * Get the minimum position in a groups' anchors.\n *\n * @param {Konva.Group} group The group that contains anchors.\n * @returns {Point2D|undefined} The minimum position.\n */\nfunction getAnchorMin(group) {\n const anchors = group.find('.anchor');\n if (anchors.length === 0) {\n return undefined;\n }\n let minX = anchors[0].x();\n let minY = anchors[0].y();\n for (let i = 0; i < anchors.length; ++i) {\n minX = Math.min(minX, anchors[i].x());\n minY = Math.min(minY, anchors[i].y());\n }\n\n return new Point2D(minX, minY);\n}\n\n/**\n * Bound a node position.\n *\n * @param {Konva.Node} node The node to bound the position.\n * @param {Point2D} min The minimum position.\n * @param {Point2D} max The maximum position.\n * @returns {boolean} True if the position was corrected.\n */\nfunction boundNodePosition(node, min, max) {\n let changed = false;\n if (node.x() < min.getX()) {\n node.x(min.getX());\n changed = true;\n } else if (node.x() > max.getX()) {\n node.x(max.getX());\n changed = true;\n }\n if (node.y() < min.getY()) {\n node.y(min.getY());\n changed = true;\n } else if (node.y() > max.getY()) {\n node.y(max.getY());\n changed = true;\n }\n return changed;\n}\n\n/**\n * Validate a group position.\n *\n * @param {Scalar2D} stageSize The stage size {x,y}.\n * @param {Konva.Group} group The group to evaluate.\n * @returns {boolean} True if the position was corrected.\n */\nexport function validateGroupPosition(stageSize, group) {\n // if anchors get mixed, width/height can be negative\n const shape = group.getChildren(isNodeNameShape)[0];\n const anchorMin = getAnchorMin(group);\n // handle no anchor: when dragging the label, the editor does\n // not activate\n if (typeof anchorMin === 'undefined') {\n return null;\n }\n\n const min = new Point2D(\n -anchorMin.getX(),\n -anchorMin.getY()\n );\n const max = new Point2D(\n stageSize.x - (anchorMin.getX() + Math.abs(shape.width())),\n stageSize.y - (anchorMin.getY() + Math.abs(shape.height()))\n );\n\n return boundNodePosition(group, min, max);\n}\n\n/**\n * Validate an anchor position.\n *\n * @param {Scalar2D} stageSize The stage size {x,y}.\n * @param {Konva.Shape} anchor The anchor to evaluate.\n * @returns {boolean} True if the position was corrected.\n */\nexport function validateAnchorPosition(stageSize, anchor) {\n const group = anchor.getParent();\n\n const min = new Point2D(\n -group.x(),\n -group.y()\n );\n const max = new Point2D(\n stageSize.x - group.x(),\n stageSize.y - group.y()\n );\n\n return boundNodePosition(anchor, min, max);\n}\n","import {Circle} from '../math/circle';\nimport {Point2D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Style} from '../gui/style';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Circle factory.\n */\nexport class CircleFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'circle-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Calculates the mathematical circle.\n *\n * @param {Point2D[]} points The points that define the circle.\n * @returns {Circle} The mathematical circle.\n */\n #calculateMathShape(points) {\n // calculate radius\n const a = Math.abs(points[0].getX() - points[1].getX());\n const b = Math.abs(points[0].getY() - points[1].getY());\n const radius = Math.round(Math.sqrt(a * a + b * b));\n // physical shape\n return new Circle(points[0], radius);\n }\n\n /**\n * Set an annotation math shape from input points.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Point2D[]} points The points.\n */\n setAnnotationMathShape(annotation, points) {\n annotation.mathShape = this.#calculateMathShape(points);\n annotation.setTextExpr(this.#getDefaultLabel());\n annotation.updateQuantification();\n }\n\n /**\n * Update an annotation on translation (shape move).\n *\n * @param {Annotation} annotation The annotation.\n * @param {object} translation The translation.\n */\n updateAnnotationOnTranslation(annotation, translation) {\n // math shape\n const circle = annotation.mathShape;\n const center = circle.getCenter();\n const newCenter = new Point2D(\n center.getX() + translation.x,\n center.getY() + translation.y\n );\n annotation.mathShape = new Circle(newCenter, circle.getRadius());\n // label position\n const labelPos = annotation.labelPosition;\n if (typeof labelPos !== 'undefined') {\n const newPos = new Point2D(\n labelPos.getX() + translation.x,\n labelPos.getY() + translation.y\n );\n annotation.labelPosition = newPos;\n }\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update an annotation on anchor move.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Konva.Shape} anchor The anchor.\n */\n updateAnnotationOnAnchorMove(annotation, anchor) {\n // math shape\n const circle = annotation.mathShape;\n const center = new Point2D(\n circle.getCenter().getX(),\n circle.getCenter().getY()\n );\n const anchorPoint = new Point2D(anchor.x(), anchor.y());\n const newRadius = center.getDistance(anchorPoint);\n annotation.mathShape = new Circle(center, newRadius);\n // label position\n // TODO...\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Get the default labels.\n *\n * @returns {object} The label list.\n */\n #getDefaultLabel() {\n return defaults.labelText.circle;\n }\n\n /**\n * Creates the konva circle shape.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Circle} The konva circle shape.\n */\n #createShape(annotation, style) {\n const circle = annotation.mathShape;\n // konva circle\n return new Konva.Circle({\n x: circle.getCenter().getX(),\n y: circle.getCenter().getY(),\n radius: circle.getRadius(),\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n }\n\n /**\n * Get the default annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getDefaultLabelPosition(annotation) {\n const circle = annotation.mathShape;\n const center = circle.getCenter();\n const radius = circle.getRadius();\n return new Point2D(\n center.getX() - radius,\n center.getY() + radius,\n );\n }\n\n /**\n * Get the annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getLabelPosition(annotation) {\n let res = annotation.labelPosition;\n if (typeof res === 'undefined') {\n res = this.#getDefaultLabelPosition(annotation);\n }\n return res;\n }\n\n /**\n * Creates the konva label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Label} The Konva label.\n */\n #createLabel(annotation, style) {\n // konva text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n const labelText = annotation.getText();\n ktext.setText(labelText);\n\n // konva label\n const labelPosition = this.#getLabelPosition(annotation);\n const klabel = new Konva.Label({\n x: labelPosition.getX(),\n y: labelPosition.getY(),\n scale: style.applyZoomScale(1),\n visible: labelText.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n return klabel;\n }\n\n /**\n * Create a circle shape to be displayed.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Group} The Konva group.\n */\n createShapeGroup(annotation, style) {\n // konva group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.visible(true);\n group.id(annotation.id);\n // konva shape\n group.add(this.#createShape(annotation, style));\n // konva label\n group.add(this.#createLabel(annotation, style));\n // konva shadow (if debug)\n if (DRAW_DEBUG) {\n group.add(this.#getDebugShadow(annotation));\n }\n return group;\n }\n\n /**\n * Get anchors to update a circle shape.\n *\n * @param {Konva.Circle} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const centerX = shape.x();\n const centerY = shape.y();\n const radius = shape.radius();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n centerX - radius, centerY, 'left', style\n ));\n anchors.push(getDefaultAnchor(\n centerX + radius, centerY, 'right', style\n ));\n anchors.push(getDefaultAnchor(\n centerX, centerY + radius, 'bottom', style\n ));\n anchors.push(getDefaultAnchor(\n centerX, centerY - radius, 'top', style\n ));\n return anchors;\n }\n\n /**\n * Constrain anchor movement.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n */\n constrainAnchorMove(anchor) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // find special points\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n\n // update 'self' (undo case) and special points\n switch (anchor.id()) {\n case 'left':\n // block y\n left.y(right.y());\n break;\n case 'right':\n // block y\n right.y(left.y());\n break;\n case 'bottom':\n // block x\n bottom.x(top.x());\n break;\n case 'top':\n // block x\n top.x(bottom.x());\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Update shape and label on anchor move.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The application style.\n */\n updateShapeGroupOnAnchorMove(annotation, anchor, style) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // update shape and anchors\n this.#updateShape(annotation, anchor, style);\n // update label\n this.updateLabelContent(annotation, group, style);\n // TODO check if linked label...\n this.updateLabelPosition(annotation, group, style);\n // update shadow\n if (DRAW_DEBUG) {\n this.#updateDebugShadow(annotation, group);\n }\n }\n\n /**\n * Update shape on anchor move.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} _style The application style.\n */\n #updateShape(annotation, anchor, _style) {\n const circle = annotation.mathShape;\n const center = circle.getCenter();\n const radius = circle.getRadius();\n\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const kcircle = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kcircle instanceof Konva.Circle)) {\n return;\n }\n // update shape: just update the radius\n kcircle.radius(radius);\n\n // find anchors\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n\n const swapX = right.x() < left.x() ? -1 : 1;\n const swapY = top.y() < bottom.y() ? 1 : -1;\n\n // update 'self' (undo case) and other anchors\n switch (anchor.id()) {\n case 'left':\n // update self\n left.x(anchor.x());\n // update others\n right.x(center.getX() + swapX * radius);\n bottom.y(center.getY() + radius);\n top.y(center.getY() - radius);\n break;\n case 'right':\n // update self\n right.x(anchor.x());\n // update others\n left.x(center.getX() - swapX * radius);\n bottom.y(center.getY() + radius);\n top.y(center.getY() - radius);\n break;\n case 'bottom':\n // update self\n bottom.y(anchor.y());\n // update others\n left.x(center.getX() - radius);\n right.x(center.getX() + radius);\n top.y(center.getY() - swapY * radius);\n break;\n case 'top':\n // update self\n top.y(anchor.y());\n // update others\n left.x(center.getX() - radius);\n right.x(center.getX() + radius);\n bottom.y(center.getY() + swapY * radius);\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Update the shape label position.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelPosition(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update position\n const labelPosition = this.#getLabelPosition(annotation);\n klabel.position({\n x: labelPosition.getX(),\n y: labelPosition.getY()\n });\n }\n\n /**\n * Update the shape label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelContent(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update text\n const text = annotation.getText();\n const ktext = klabel.getText();\n ktext.setText(text);\n // hide if empty\n klabel.visible(text.length !== 0);\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Annotation} annotation The circle to shadow.\n * @param {Konva.Group} [group] The associated group.\n * @returns {Konva.Group} The shadow konva group.\n */\n #getDebugShadow(annotation, group) {\n const circle = annotation.mathShape;\n\n // possible group offset\n let offsetX = 0;\n let offsetY = 0;\n if (typeof group !== 'undefined') {\n offsetX = group.x();\n offsetY = group.y();\n }\n const kshadow = new Konva.Group();\n kshadow.name('shadow');\n const regions = circle.getRound();\n for (let i = 0; i < regions.length; ++i) {\n const region = regions[i];\n const minX = region[0][0];\n const minY = region[0][1];\n const maxX = region[1][0];\n const pixelLine = new Konva.Rect({\n x: minX - offsetX,\n y: minY - offsetY,\n width: maxX - minX,\n height: 1,\n fill: 'grey',\n strokeWidth: 0,\n strokeScaleEnabled: false,\n opacity: 0.3,\n name: 'shadow-element'\n });\n kshadow.add(pixelLine);\n }\n return kshadow;\n }\n\n #updateDebugShadow(group, annotation) {\n const kshadow = group.getChildren(function (node) {\n return node.name() === 'shadow';\n })[0];\n if (typeof kshadow !== 'undefined') {\n // remove previous\n kshadow.destroy();\n // add new\n group.add(this.#getDebugShadow(\n annotation.mathShape, group));\n }\n }\n\n} // class CircleFactory\n","import {ListenerHandler} from '../utils/listen';\nimport {getFlags, replaceFlags} from '../utils/string';\nimport {CircleFactory} from '../tools/circle';\nimport {Circle} from '../math/circle';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Index} from '../math/index';\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Image annotation.\n */\nexport class Annotation {\n /**\n * The ID.\n *\n * 'Tracking Unique Identifier', 112040, DCM.\n *\n * @type {string}\n */\n id;\n\n /**\n * The reference image SOP UID.\n *\n * @type {string}\n */\n referenceSopUID;\n\n /**\n * The position: an Index converted to string.\n *\n * @type {string}\n */\n position;\n\n /**\n * The mathematical shape.\n *\n * @type {object}\n */\n mathShape;\n\n /**\n * The color: for example 'green', '#00ff00' or 'rgb(0,255,0)'.\n *\n * 'RGB R Component', 110834, DCM...\n *\n * @type {string}\n */\n colour;\n\n /**\n * Annotation quantification.\n *\n * @type {object}\n */\n quantification;\n\n /**\n * Text expression. Can contain variables surrounded with '{}' that will\n * be extracted from the quantification object.\n *\n * 'Short label', 125309, DCM.\n *\n * @type {string}\n */\n textExpr;\n\n /**\n * Label position.\n *\n * @type {Point2D}\n */\n labelPosition;\n\n /**\n * Associated view controller.\n *\n * @type {ViewController}\n */\n #viewController;\n\n /**\n * Set the associated view controller.\n *\n * @param {ViewController} viewController The associated view controller.\n */\n setViewController(viewController) {\n if (typeof this.#viewController === 'undefined') {\n this.#viewController = viewController;\n // set UID if empty\n if (typeof this.referenceSopUID === 'undefined') {\n this.referenceSopUID = viewController.getCurrentImageUid();\n }\n } else {\n console.log('Cannot override previous view controller');\n }\n }\n\n /**\n * Get the image origin for a image UID.\n *\n * @returns {Index|undefined} The origin index.\n */\n getOriginIndex() {\n let res;\n if (typeof this.#viewController !== 'undefined') {\n res =\n this.#viewController.getOriginIndexForImageUid(this.referenceSopUID);\n }\n return res;\n }\n\n /**\n * Set the annotation text expression.\n *\n * @param {Object.} labelText The list of label\n * texts indexed by modality.\n */\n setTextExpr(labelText) {\n if (typeof this.#viewController !== 'undefined') {\n const modality = this.#viewController.getModality();\n\n if (typeof labelText[modality] !== 'undefined') {\n this.textExpr = labelText[modality];\n } else {\n this.textExpr = labelText['*'];\n }\n } else {\n console.log('Cannot set text expr without a view controller');\n }\n }\n\n /**\n * Get the annotation label text by applying the\n * text expression on the current quantification.\n *\n * @returns {string} The resulting text.\n */\n getText() {\n return replaceFlags(this.textExpr, this.quantification);\n }\n\n /**\n * Update the annotation quantification.\n */\n updateQuantification() {\n if (typeof this.#viewController !== 'undefined') {\n this.quantification = this.mathShape.quantify(\n this.#viewController,\n getFlags(this.textExpr));\n } else {\n console.log('Cannot update quantification without a view controller');\n }\n }\n\n /**\n * Get the math shape associated draw factory.\n *\n * @returns {object} The factory.\n */\n getFactory() {\n let fac;\n if (this.mathShape instanceof Circle) {\n fac = new CircleFactory();\n }\n return fac;\n }\n}\n\n/**\n * Annotation group.\n */\nexport class AnnotationGroup {\n /**\n * @type {Annotation[]}\n */\n #list;\n\n /**\n * Annotation meta data.\n *\n * @type {Object}\n */\n #meta = {};\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {Annotation[]} [list] Optional list, will\n * create new if not provided.\n */\n constructor(list) {\n if (typeof list !== 'undefined') {\n this.#list = list;\n } else {\n this.#list = [];\n }\n }\n\n /**\n * Get the annotation group as an array.\n *\n * @returns {Annotation[]} The array.\n */\n getList() {\n return this.#list;\n }\n\n /**\n * Get the number of annotations of this list.\n *\n * @returns {number} The number of annotations.\n */\n getLength() {\n return this.#list.length;\n }\n\n /**\n * Add a new annotation.\n *\n * @param {Annotation} annotation The annotation to add.\n */\n add(annotation) {\n this.#list.push(annotation);\n this.#fireEvent({\n type: 'addannotation',\n data: annotation\n });\n }\n\n /**\n * Update an existing annotation.\n *\n * @param {Annotation} annotation The annotation to update.\n */\n update(annotation) {\n const index = this.#list.findIndex((item) => item.id === annotation.id);\n if (index !== -1) {\n this.#list[index] = annotation;\n this.#fireEvent({\n type: 'updateannotation',\n data: annotation\n });\n } else {\n console.log('Cannot find annotation to update');\n }\n }\n\n /**\n * Remove an annotation.\n *\n * @param {string} id The id of the annotation to remove.\n */\n remove(id) {\n const index = this.#list.findIndex((item) => item.id === id);\n if (index !== -1) {\n const annotation = this.#list.splice(index, 1)[0];\n this.#fireEvent({\n type: 'removeannotation',\n data: annotation\n });\n } else {\n console.log('Cannot find annotation to remove');\n }\n }\n\n /**\n * Set the associated view controller.\n *\n * @param {ViewController} viewController The associated view controller.\n */\n setViewController(viewController) {\n for (const item of this.#list) {\n item.setViewController(viewController);\n item.updateQuantification();\n }\n }\n\n /**\n * Find an annotation.\n *\n * @param {string} id The id of the annotation to find.\n * @returns {Annotation|undefined} The found annotation.\n */\n find(id) {\n return this.#list.find((item) => item.id === id);\n }\n\n /**\n * Check if this list contains a meta data value.\n *\n * @param {string} key The key to check.\n * @returns {boolean} True if the meta data is present.\n */\n hasMeta(key) {\n return typeof this.#meta[key] !== 'undefined';\n }\n\n /**\n * Get a meta data value.\n *\n * @param {string} key The meta data key.\n * @returns {object} The meta data value.\n */\n getMeta(key) {\n return this.#meta[key];\n }\n\n /**\n * Set a meta data.\n *\n * @param {string} key The meta data key.\n * @param {object} value The value of the meta data.\n */\n setMeta(key, value) {\n this.#meta[key] = value;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n}","import {logger} from '../utils/logger';\nimport {Point2D} from '../math/point';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * List of interaction event names.\n */\nexport const InteractionEventNames = [\n 'mousedown',\n 'mousemove',\n 'mouseup',\n 'mouseout',\n 'wheel',\n 'dblclick',\n 'touchstart',\n 'touchmove',\n 'touchend'\n];\n\n/**\n * Overridalbe custom UI object for client defined UI.\n */\nexport const customUI = {\n /**\n * Open a dialogue to edit roi data. Defaults to window.prompt.\n *\n * @param {Annotation} annotation The roi data.\n * @param {Function} callback The callback to launch on dialogue exit.\n */\n openRoiDialog(annotation, callback) {\n const textExpr = prompt('Label', annotation.textExpr);\n if (textExpr !== null) {\n annotation.textExpr = textExpr;\n callback(annotation);\n }\n }\n};\n\n/**\n * Get the positions (without the parent offset) of a list of touch events.\n *\n * @param {Array} touches The list of touch events.\n * @returns {Point2D[]} The list of positions of the touch events.\n */\nfunction getTouchesPositions(touches) {\n // get the touch offset from all its parents\n let offsetLeft = 0;\n let offsetTop = 0;\n if (touches.length !== 0 &&\n typeof touches[0].target !== 'undefined') {\n let offsetParent = touches[0].target.offsetParent;\n while (offsetParent) {\n if (!isNaN(offsetParent.offsetLeft)) {\n offsetLeft += offsetParent.offsetLeft;\n }\n if (!isNaN(offsetParent.offsetTop)) {\n offsetTop += offsetParent.offsetTop;\n }\n offsetParent = offsetParent.offsetParent;\n }\n } else {\n logger.debug('No touch target offset parent.');\n }\n // set its position\n const positions = [];\n for (let i = 0; i < touches.length; ++i) {\n positions.push(new Point2D(\n touches[i].pageX - offsetLeft,\n touches[i].pageY - offsetTop\n ));\n }\n return positions;\n}\n\n/**\n * Get the offsets of an input touch event.\n *\n * @param {object} event The event to get the offset from.\n * @returns {Point2D[]} The array of points.\n */\nexport function getTouchPoints(event) {\n let positions = [];\n if (typeof event.targetTouches !== 'undefined' &&\n event.targetTouches.length !== 0) {\n // see https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/targetTouches\n positions = getTouchesPositions(event.targetTouches);\n } else if (typeof event.changedTouches !== 'undefined' &&\n event.changedTouches.length !== 0) {\n // see https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/changedTouches\n positions = getTouchesPositions(event.changedTouches);\n }\n return positions;\n}\n\n/**\n * Get the offset of an input mouse event.\n *\n * @param {object} event The event to get the offset from.\n * @returns {Point2D} The 2D point.\n */\nexport function getMousePoint(event) {\n // offsetX/Y: the offset in the X coordinate of the mouse pointer\n // between that event and the padding edge of the target node\n // https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/offsetX\n // https://caniuse.com/mdn-api_mouseevent_offsetx\n return new Point2D(\n event.offsetX,\n event.offsetY\n );\n}\n\n/**\n * Test if a canvas with the input size can be created.\n *\n * Ref:\n * - {@link https://github.com/ivmartel/dwv/issues/902},\n * - {@link https://github.com/jhildenbiddle/canvas-size/blob/v1.2.4/src/canvas-test.js}.\n *\n * @param {number} width The canvas width.\n * @param {number} height The canvas height.\n * @returns {boolean} True is the canvas can be created.\n */\nexport function canCreateCanvas(width, height) {\n // test canvas with input size\n const testCvs = document.createElement('canvas');\n testCvs.width = width;\n testCvs.height = height;\n // crop canvas to speed up test\n const cropCvs = document.createElement('canvas');\n cropCvs.width = 1;\n cropCvs.height = 1;\n // contexts\n const testCtx = testCvs.getContext('2d');\n const cropCtx = cropCvs.getContext('2d');\n // set data\n if (testCtx) {\n testCtx.fillRect(width - 1, height - 1, 1, 1);\n // Render the test pixel in the bottom-right corner of the\n // test canvas in the top-left of the 1x1 crop canvas. This\n // dramatically reducing the time for getImageData to complete.\n cropCtx.drawImage(testCvs, width - 1, height - 1, 1, 1, 0, 0, 1, 1);\n }\n // Verify image data (alpha component, Pass = 255, Fail = 0)\n return cropCtx && cropCtx.getImageData(0, 0, 1, 1).data[3] !== 0;\n}\n","import {Index} from '../math/index';\nimport {ListenerHandler} from '../utils/listen';\nimport {viewEventNames} from '../image/view';\nimport {ViewController} from '../app/viewController';\nimport {Point2D} from '../math/point';\nimport {\n canCreateCanvas,\n InteractionEventNames\n} from './generic';\nimport {getScaledOffset} from './layerGroup';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Vector3D} from '../math/vector';\nimport {Point, Point3D} from '../math/point';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * View layer.\n */\nexport class ViewLayer {\n\n /**\n * Container div.\n *\n * @type {HTMLElement}\n */\n #containerDiv;\n\n /**\n * The view controller.\n *\n * @type {ViewController}\n */\n #viewController = null;\n\n /**\n * The main display canvas.\n *\n * @type {object}\n */\n #canvas = null;\n\n /**\n * The offscreen canvas: used to store the raw, unscaled pixel data.\n *\n * @type {object}\n */\n #offscreenCanvas = null;\n\n /**\n * The associated CanvasRenderingContext2D.\n *\n * @type {object}\n */\n #context = null;\n\n /**\n * Flag to know if the current position is valid.\n *\n * @type {boolean}\n */\n #isValidPosition = true;\n\n /**\n * The image data array.\n *\n * @type {ImageData}\n */\n #imageData = null;\n\n /**\n * The layer base size as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSize;\n\n /**\n * The layer base spacing as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSpacing;\n\n /**\n * The layer opacity.\n *\n * @type {number}\n */\n #opacity = 1;\n\n /**\n * The layer scale.\n *\n * @type {Scalar2D}\n */\n #scale = {x: 1, y: 1};\n\n /**\n * The layer fit scale.\n *\n * @type {Scalar2D}\n */\n #fitScale = {x: 1, y: 1};\n\n /**\n * The layer flip scale.\n *\n * @type {Scalar3D}\n */\n #flipScale = {x: 1, y: 1, z: 1};\n\n /**\n * The layer offset.\n *\n * @type {Scalar2D}\n */\n #offset = {x: 0, y: 0};\n\n /**\n * The base layer offset.\n *\n * @type {Scalar2D}\n */\n #baseOffset = {x: 0, y: 0};\n\n /**\n * The view offset.\n *\n * @type {Scalar2D}\n */\n #viewOffset = {x: 0, y: 0};\n\n /**\n * The zoom offset.\n *\n * @type {Scalar2D}\n */\n #zoomOffset = {x: 0, y: 0};\n\n /**\n * The flip offset.\n *\n * @type {Scalar2D}\n */\n #flipOffset = {x: 0, y: 0};\n\n /**\n * Data update flag.\n *\n * @type {boolean}\n */\n #needsDataUpdate = null;\n\n /**\n * The associated data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Image smoothing flag.\n *\n * See: {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled}.\n *\n * @type {boolean}\n */\n #imageSmoothing = false;\n\n /**\n * Layer group origin.\n *\n * @type {Point3D}\n */\n #layerGroupOrigin;\n\n /**\n * Layer group first origin.\n *\n * @type {Point3D}\n */\n #layerGroupOrigin0;\n\n /**\n * @param {HTMLElement} containerDiv The layer div, its id will be used\n * as this layer id.\n */\n constructor(containerDiv) {\n this.#containerDiv = containerDiv;\n // specific css class name\n this.#containerDiv.className += ' viewLayer';\n }\n\n /**\n * Get the associated data id.\n *\n * @returns {string} The data id.\n */\n getDataId() {\n return this.#dataId;\n }\n\n /**\n * Get the layer scale.\n *\n * @returns {Scalar2D} The scale as {x,y}.\n */\n getScale() {\n return this.#scale;\n }\n\n /**\n * Get the layer zoom offset without the fit scale.\n *\n * @returns {Scalar2D} The offset as {x,y}.\n */\n getAbsoluteZoomOffset() {\n return {\n x: this.#zoomOffset.x * this.#fitScale.x,\n y: this.#zoomOffset.y * this.#fitScale.y\n };\n }\n\n /**\n * Set the imageSmoothing flag value.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#imageSmoothing = flag;\n }\n\n /**\n * Set the associated view.\n *\n * @param {object} view The view.\n * @param {string} dataId The associated data id.\n */\n setView(view, dataId) {\n this.#dataId = dataId;\n // local listeners\n view.addEventListener('wlchange', this.#onWLChange);\n view.addEventListener('colourmapchange', this.#onColourMapChange);\n view.addEventListener('positionchange', this.#onPositionChange);\n view.addEventListener('alphafuncchange', this.#onAlphaFuncChange);\n // view events\n for (let j = 0; j < viewEventNames.length; ++j) {\n view.addEventListener(viewEventNames[j], this.#fireEvent);\n }\n // create view controller\n this.#viewController = new ViewController(view);\n // bind layer and image\n this.bindImage();\n }\n\n /**\n * Get the view controller.\n *\n * @returns {ViewController} The controller.\n */\n getViewController() {\n return this.#viewController;\n }\n\n /**\n * Get the canvas image data.\n *\n * @returns {object} The image data.\n */\n getImageData() {\n return this.#imageData;\n }\n\n /**\n * Handle an image set event.\n *\n * @param {object} event The event.\n * @function\n */\n onimageset = (event) => {\n // event.value = [index, image]\n if (this.#dataId === event.dataid) {\n this.#viewController.setImage(event.value[0]);\n this.#setBaseSize(this.#viewController.getImageSize().get2D());\n this.#needsDataUpdate = true;\n }\n };\n\n /**\n * Bind this layer to the view image.\n */\n bindImage() {\n if (this.#viewController) {\n this.#viewController.bindImageAndLayer(this);\n }\n }\n\n /**\n * Unbind this layer to the view image.\n */\n unbindImage() {\n if (this.#viewController) {\n this.#viewController.unbindImageAndLayer(this);\n }\n }\n\n /**\n * Handle an image content change event.\n *\n * @param {object} event The event.\n * @function\n */\n onimagecontentchange = (event) => {\n // event.value = [index]\n if (this.#dataId === event.dataid) {\n this.#isValidPosition = this.#viewController.isPositionInBounds();\n // flag update and draw\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Handle an image change event.\n *\n * @param {object} event The event.\n * @function\n */\n onimagegeometrychange = (event) => {\n // event.value = [index]\n if (this.#dataId === event.dataid) {\n const vcSize = this.#viewController.getImageSize().get2D();\n if (this.#baseSize.x !== vcSize.x ||\n this.#baseSize.y !== vcSize.y) {\n // size changed, recalculate base offset\n // in case origin changed\n if (typeof this.#layerGroupOrigin !== 'undefined' &&\n typeof this.#layerGroupOrigin0 !== 'undefined') {\n const origin0 = this.#viewController.getOrigin();\n const scrollOffset = this.#layerGroupOrigin0.minus(origin0);\n const origin = this.#viewController.getOrigin(\n this.#viewController.getCurrentPosition()\n );\n const planeOffset = this.#layerGroupOrigin.minus(origin);\n this.setBaseOffset(scrollOffset, planeOffset);\n }\n // update base size\n this.#setBaseSize(vcSize);\n // flag update and draw\n this.#needsDataUpdate = true;\n this.draw();\n }\n }\n };\n\n // common layer methods [start] ---------------\n\n /**\n * Get the id of the layer.\n *\n * @returns {string} The string id.\n */\n getId() {\n return this.#containerDiv.id;\n }\n\n /**\n * Remove the HTML element from the DOM.\n */\n removeFromDOM() {\n this.#containerDiv.remove();\n }\n\n /**\n * Get the layer base size (without scale).\n *\n * @returns {Scalar2D} The size as {x,y}.\n */\n getBaseSize() {\n return this.#baseSize;\n }\n\n /**\n * Get the image world (mm) 2D size.\n *\n * @returns {Scalar2D} The 2D size as {x,y}.\n */\n getImageWorldSize() {\n return this.#viewController.getImageWorldSize();\n }\n\n /**\n * Get the layer opacity.\n *\n * @returns {number} The opacity ([0:1] range).\n */\n getOpacity() {\n return this.#opacity;\n }\n\n /**\n * Set the layer opacity.\n *\n * @param {number} alpha The opacity ([0:1] range).\n */\n setOpacity(alpha) {\n if (alpha === this.#opacity) {\n return;\n }\n\n this.#opacity = Math.min(Math.max(alpha, 0), 1);\n\n /**\n * Opacity change event.\n *\n * @event App#opacitychange\n * @type {object}\n * @property {string} type The event type.\n */\n const event = {\n type: 'opacitychange',\n value: [this.#opacity]\n };\n this.#fireEvent(event);\n }\n\n /**\n * Add a flip offset along the layer X axis.\n */\n addFlipOffsetX() {\n this.#flipOffset.x += this.#canvas.width / this.#scale.x;\n this.#offset.x += this.#flipOffset.x;\n }\n\n /**\n * Add a flip offset along the layer Y axis.\n */\n addFlipOffsetY() {\n this.#flipOffset.y += this.#canvas.height / this.#scale.y;\n this.#offset.y += this.#flipOffset.y;\n }\n\n /**\n * Flip the scale along the layer X axis.\n */\n flipScaleX() {\n this.#flipScale.x *= -1;\n }\n\n /**\n * Flip the scale along the layer Y axis.\n */\n flipScaleY() {\n this.#flipScale.y *= -1;\n }\n\n /**\n * Flip the scale along the layer Z axis.\n */\n flipScaleZ() {\n this.#flipScale.z *= -1;\n }\n\n /**\n * Set the layer scale.\n *\n * @param {Scalar3D} newScale The scale as {x,y,z}.\n * @param {Point3D} [center] The scale center.\n */\n setScale(newScale, center) {\n const helper = this.#viewController.getPlaneHelper();\n const orientedNewScale = helper.getTargetOrientedPositiveXYZ({\n x: newScale.x * this.#flipScale.x,\n y: newScale.y * this.#flipScale.y,\n z: newScale.z * this.#flipScale.z,\n });\n const finalNewScale = {\n x: this.#fitScale.x * orientedNewScale.x,\n y: this.#fitScale.y * orientedNewScale.y\n };\n\n if (Math.abs(newScale.x) === 1 &&\n Math.abs(newScale.y) === 1 &&\n Math.abs(newScale.z) === 1) {\n // reset zoom offset for scale=1\n const resetOffset = {\n x: this.#offset.x - this.#zoomOffset.x,\n y: this.#offset.y - this.#zoomOffset.y\n };\n // store new offset\n this.#zoomOffset = {x: 0, y: 0};\n this.#offset = resetOffset;\n } else {\n if (typeof center !== 'undefined') {\n let worldCenter = helper.getPlaneOffsetFromOffset3D({\n x: center.getX(),\n y: center.getY(),\n z: center.getZ()\n });\n // center was obtained with viewLayer.displayToMainPlanePos\n // compensated for baseOffset\n // TODO: justify...\n worldCenter = {\n x: worldCenter.x + this.#baseOffset.x,\n y: worldCenter.y + this.#baseOffset.y\n };\n\n const newOffset = getScaledOffset(\n this.#offset, this.#scale, finalNewScale, worldCenter);\n\n const newZoomOffset = {\n x: this.#zoomOffset.x + newOffset.x - this.#offset.x,\n y: this.#zoomOffset.y + newOffset.y - this.#offset.y\n };\n // store new offset\n this.#zoomOffset = newZoomOffset;\n this.#offset = newOffset;\n }\n }\n\n // store new scale\n this.#scale = finalNewScale;\n }\n\n /**\n * Initialise the layer scale.\n *\n * @param {Scalar3D} newScale The scale as {x,y,z}.\n * @param {Scalar2D} absoluteZoomOffset The zoom offset as {x,y}\n * without the fit scale (as provided by getAbsoluteZoomOffset).\n */\n initScale(newScale, absoluteZoomOffset) {\n const helper = this.#viewController.getPlaneHelper();\n const orientedNewScale = helper.getTargetOrientedPositiveXYZ({\n x: newScale.x * this.#flipScale.x,\n y: newScale.y * this.#flipScale.y,\n z: newScale.z * this.#flipScale.z,\n });\n const finalNewScale = {\n x: this.#fitScale.x * orientedNewScale.x,\n y: this.#fitScale.y * orientedNewScale.y\n };\n this.#scale = finalNewScale;\n\n this.#zoomOffset = {\n x: absoluteZoomOffset.x / this.#fitScale.x,\n y: absoluteZoomOffset.y / this.#fitScale.y\n };\n this.#offset = {\n x: this.#offset.x + this.#zoomOffset.x,\n y: this.#offset.y + this.#zoomOffset.y\n };\n }\n\n /**\n * Set the base layer offset. Updates the layer offset.\n *\n * @param {Vector3D} scrollOffset The scroll offset vector.\n * @param {Vector3D} planeOffset The plane offset vector.\n * @param {Point3D} [layerGroupOrigin] The layer group origin.\n * @param {Point3D} [layerGroupOrigin0] The layer group first origin.\n * @returns {boolean} True if the offset was updated.\n */\n setBaseOffset(\n scrollOffset, planeOffset,\n layerGroupOrigin, layerGroupOrigin0) {\n const helper = this.#viewController.getPlaneHelper();\n const scrollIndex = helper.getNativeScrollIndex();\n const newOffset = helper.getPlaneOffsetFromOffset3D({\n x: scrollIndex === 0 ? scrollOffset.getX() : planeOffset.getX(),\n y: scrollIndex === 1 ? scrollOffset.getY() : planeOffset.getY(),\n z: scrollIndex === 2 ? scrollOffset.getZ() : planeOffset.getZ(),\n });\n const needsUpdate = this.#baseOffset.x !== newOffset.x ||\n this.#baseOffset.y !== newOffset.y;\n // store layer group origins\n if (typeof layerGroupOrigin !== 'undefined' &&\n typeof layerGroupOrigin0 !== 'undefined') {\n this.#layerGroupOrigin = layerGroupOrigin;\n this.#layerGroupOrigin0 = layerGroupOrigin0;\n }\n // reset offset if needed\n if (needsUpdate) {\n this.#offset = {\n x: this.#offset.x - this.#baseOffset.x + newOffset.x,\n y: this.#offset.y - this.#baseOffset.y + newOffset.y\n };\n this.#baseOffset = newOffset;\n }\n return needsUpdate;\n }\n\n /**\n * Set the layer offset.\n *\n * @param {Scalar3D} newOffset The offset as {x,y,z}.\n */\n setOffset(newOffset) {\n const helper = this.#viewController.getPlaneHelper();\n const planeNewOffset = helper.getPlaneOffsetFromOffset3D(newOffset);\n this.#offset = {\n x: planeNewOffset.x +\n this.#viewOffset.x +\n this.#baseOffset.x +\n this.#zoomOffset.x +\n this.#flipOffset.x,\n y: planeNewOffset.y +\n this.#viewOffset.y +\n this.#baseOffset.y +\n this.#zoomOffset.y +\n this.#flipOffset.y\n };\n }\n\n /**\n * Transform a display position to a 2D index.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Index} The equivalent 2D index.\n */\n displayToPlaneIndex(point2D) {\n const planePos = this.displayToPlanePos(point2D);\n return new Index([\n Math.floor(planePos.getX()),\n Math.floor(planePos.getY())\n ]);\n }\n\n /**\n * Remove scale from a display position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The de-scaled point.\n */\n displayToPlaneScale(point2D) {\n return new Point2D(\n point2D.getX() / this.#scale.x,\n point2D.getY() / this.#scale.y\n );\n }\n\n /**\n * Get a plane position from a display position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The plane position.\n */\n displayToPlanePos(point2D) {\n const deScaled = this.displayToPlaneScale(point2D);\n return new Point2D(\n deScaled.getX() + this.#offset.x,\n deScaled.getY() + this.#offset.y\n );\n }\n\n /**\n * Get a display position from a plane position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The display position, can be individually\n * undefined if out of bounds.\n */\n planePosToDisplay(point2D) {\n let posX =\n (point2D.getX() - this.#offset.x + this.#baseOffset.x) * this.#scale.x;\n let posY =\n (point2D.getY() - this.#offset.y + this.#baseOffset.y) * this.#scale.y;\n // check if in bounds\n if (posX < 0 || posX >= this.#canvas.width) {\n posX = undefined;\n }\n if (posY < 0 || posY >= this.#canvas.height) {\n posY = undefined;\n }\n return new Point2D(posX, posY);\n }\n\n /**\n * Get a main plane position from a display position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The main plane position.\n */\n displayToMainPlanePos(point2D) {\n const planePos = this.displayToPlanePos(point2D);\n return new Point2D(\n planePos.getX() - this.#baseOffset.x,\n planePos.getY() - this.#baseOffset.y\n );\n }\n\n /**\n * Display the layer.\n *\n * @param {boolean} flag Whether to display the layer or not.\n */\n display(flag) {\n this.#containerDiv.style.display = flag ? '' : 'none';\n }\n\n /**\n * Check if the layer is visible.\n *\n * @returns {boolean} True if the layer is visible.\n */\n isVisible() {\n return this.#containerDiv.style.display === '';\n }\n\n /**\n * Draw the content (imageData) of the layer.\n * The imageData variable needs to be set.\n *\n * @fires App#renderstart\n * @fires App#renderend\n */\n draw() {\n // skip for non valid position\n if (!this.#isValidPosition) {\n return;\n }\n\n /**\n * Render start event.\n *\n * @event App#renderstart\n * @type {object}\n * @property {string} type The event type.\n */\n let event = {\n type: 'renderstart',\n layerid: this.getId(),\n dataid: this.getDataId()\n };\n this.#fireEvent(event);\n\n // update data if needed\n if (this.#needsDataUpdate) {\n this.#updateImageData();\n }\n\n // context opacity\n this.#context.globalAlpha = this.#opacity;\n\n // clear context\n this.clear();\n\n // draw the cached canvas on the context\n // transform takes as input a, b, c, d, e, f to create\n // the transform matrix (column-major order):\n // [ a c e ]\n // [ b d f ]\n // [ 0 0 1 ]\n this.#context.setTransform(\n this.#scale.x,\n 0,\n 0,\n this.#scale.y,\n -1 * this.#offset.x * this.#scale.x,\n -1 * this.#offset.y * this.#scale.y\n );\n\n // disable smoothing (set just before draw, could be reset by resize)\n this.#context.imageSmoothingEnabled = this.#imageSmoothing;\n // draw image\n this.#context.drawImage(this.#offscreenCanvas, 0, 0);\n\n /**\n * Render end event.\n *\n * @event App#renderend\n * @type {object}\n * @property {string} type The event type.\n */\n event = {\n type: 'renderend',\n layerid: this.getId(),\n dataid: this.getDataId()\n };\n this.#fireEvent(event);\n }\n\n /**\n * Initialise the layer: set the canvas and context.\n *\n * @param {Scalar2D} size The image size as {x,y}.\n * @param {Scalar2D} spacing The image spacing as {x,y}.\n * @param {number} alpha The initial data opacity.\n */\n initialise(size, spacing, alpha) {\n // set locals\n this.#baseSpacing = spacing;\n this.#opacity = Math.min(Math.max(alpha, 0), 1);\n\n // create canvas\n // (canvas size is set in fitToContainer)\n this.#canvas = document.createElement('canvas');\n this.#containerDiv.appendChild(this.#canvas);\n\n // check that the getContext method exists\n if (!this.#canvas.getContext) {\n alert('Error: no canvas.getContext method.');\n return;\n }\n // get the 2D context\n this.#context = this.#canvas.getContext('2d');\n if (!this.#context) {\n alert('Error: failed to get the 2D context.');\n return;\n }\n\n // off screen canvas\n this.#offscreenCanvas = document.createElement('canvas');\n\n // set base size: needs an existing context and off screen canvas\n this.#setBaseSize(size);\n\n // update data on first draw\n this.#needsDataUpdate = true;\n }\n\n /**\n * Set the base size of the layer.\n *\n * @param {Scalar2D} size The size as {x,y}.\n */\n #setBaseSize(size) {\n // check canvas creation\n if (!canCreateCanvas(size.x, size.y)) {\n throw new Error('Cannot create canvas with size ' +\n size.x + ', ' + size.y);\n }\n\n // set local\n this.#baseSize = size;\n\n // off screen canvas\n this.#offscreenCanvas.width = this.#baseSize.x;\n this.#offscreenCanvas.height = this.#baseSize.y;\n // original empty image data array\n this.#context.clearRect(0, 0, this.#baseSize.x, this.#baseSize.y);\n this.#imageData = this.#context.createImageData(\n this.#baseSize.x, this.#baseSize.y);\n }\n\n /**\n * Fit the layer to its parent container.\n *\n * @param {Scalar2D} containerSize The fit size as {x,y}.\n * @param {number} divToWorldSizeRatio The div to world size ratio.\n * @param {Scalar2D} fitOffset The fit offset as {x,y}.\n */\n fitToContainer(containerSize, divToWorldSizeRatio, fitOffset) {\n let needsDraw = false;\n\n // set canvas size if different from previous\n if (this.#canvas.width !== containerSize.x ||\n this.#canvas.height !== containerSize.y) {\n if (!canCreateCanvas(containerSize.x, containerSize.y)) {\n throw new Error('Cannot resize canvas ' +\n containerSize.x + ', ' + containerSize.y);\n }\n // canvas size change triggers canvas reset\n this.#canvas.width = containerSize.x;\n this.#canvas.height = containerSize.y;\n // update draw flag\n needsDraw = true;\n }\n\n // fit scale\n const divToImageSizeRatio = {\n x: divToWorldSizeRatio * this.#baseSpacing.x,\n y: divToWorldSizeRatio * this.#baseSpacing.y\n };\n // #scale = inputScale * fitScale * flipScale\n // flipScale does not change here, we can omit it\n // newScale = (#scale / fitScale) * newFitScale\n const newScale = {\n x: this.#scale.x * divToImageSizeRatio.x / this.#fitScale.x,\n y: this.#scale.y * divToImageSizeRatio.y / this.#fitScale.y\n };\n\n // set scales if different from previous\n if (this.#scale.x !== newScale.x ||\n this.#scale.y !== newScale.y) {\n this.#fitScale = divToImageSizeRatio;\n this.#scale = newScale;\n // update draw flag\n needsDraw = true;\n }\n\n // view offset\n const newViewOffset = {\n x: fitOffset.x / divToImageSizeRatio.x,\n y: fitOffset.y / divToImageSizeRatio.y\n };\n // flip offset\n const scaledImageSize = {\n x: containerSize.x / divToImageSizeRatio.x,\n y: containerSize.y / divToImageSizeRatio.y\n };\n const newFlipOffset = {\n x: this.#flipOffset.x !== 0 ? scaledImageSize.x : 0,\n y: this.#flipOffset.y !== 0 ? scaledImageSize.y : 0,\n };\n\n // set offsets if different from previous\n if (this.#viewOffset.x !== newViewOffset.x ||\n this.#viewOffset.y !== newViewOffset.y ||\n this.#flipOffset.x !== newFlipOffset.x ||\n this.#flipOffset.y !== newFlipOffset.y) {\n // update global offset\n this.#offset = {\n x: this.#offset.x +\n newViewOffset.x - this.#viewOffset.x +\n newFlipOffset.x - this.#flipOffset.x,\n y: this.#offset.y +\n newViewOffset.y - this.#viewOffset.y +\n newFlipOffset.y - this.#flipOffset.y,\n };\n // update private local offsets\n this.#flipOffset = newFlipOffset;\n this.#viewOffset = newViewOffset;\n // update draw flag\n needsDraw = true;\n }\n\n // draw if needed\n if (needsDraw) {\n this.draw();\n }\n }\n\n /**\n * Enable and listen to container interaction events.\n */\n bindInteraction() {\n // allow pointer events\n this.#containerDiv.style.pointerEvents = 'auto';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n const eventName = names[i];\n const passive = eventName !== 'wheel';\n this.#containerDiv.addEventListener(\n eventName, this.#fireEvent, {passive: passive});\n }\n }\n\n /**\n * Disable and stop listening to container interaction events.\n */\n unbindInteraction() {\n // disable pointer events\n this.#containerDiv.style.pointerEvents = 'none';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n this.#containerDiv.removeEventListener(names[i], this.#fireEvent);\n }\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n event.srclayerid = this.getId();\n event.dataid = this.#dataId;\n this.#listenerHandler.fireEvent(event);\n };\n\n // common layer methods [end] ---------------\n\n /**\n * Update the canvas image data.\n */\n #updateImageData() {\n // generate image data\n this.#viewController.generateImageData(this.#imageData);\n // pass the data to the off screen canvas\n this.#offscreenCanvas.getContext('2d').putImageData(this.#imageData, 0, 0);\n // update data flag\n this.#needsDataUpdate = false;\n }\n\n /**\n * Handle window/level change.\n *\n * @param {object} event The event fired when changing the window/level.\n */\n #onWLChange = (event) => {\n // generate and draw if no skip flag\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Handle colour map change.\n *\n * @param {object} event The event fired when changing the colour map.\n */\n #onColourMapChange = (event) => {\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Handle position change.\n *\n * @param {object} event The event fired when changing the position.\n */\n #onPositionChange = (event) => {\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n let valid = true;\n if (typeof event.valid !== 'undefined') {\n valid = event.valid;\n }\n // clear for non valid events\n if (!valid) {\n // clear only once\n if (this.#isValidPosition) {\n this.#isValidPosition = false;\n this.clear();\n }\n } else {\n // 3D dimensions\n const dims3D = [0, 1, 2];\n // remove scroll index\n const indexScrollIndex =\n dims3D.indexOf(this.#viewController.getScrollIndex());\n dims3D.splice(indexScrollIndex, 1);\n // remove non scroll index from diff dims\n const diffDims = event.diffDims.filter(function (item) {\n return dims3D.indexOf(item) === -1;\n });\n // update if we have something left\n if (diffDims.length !== 0 || !this.#isValidPosition) {\n // reset valid flag\n this.#isValidPosition = true;\n // reset update flag\n this.#needsDataUpdate = true;\n this.draw();\n }\n }\n }\n };\n\n /**\n * Handle alpha function change.\n *\n * @param {object} event The event fired when changing the function.\n */\n #onAlphaFuncChange = (event) => {\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Set the current position.\n *\n * @param {Point} position The new position.\n * @param {Index} _index The new index.\n * @returns {boolean} True if the position was updated.\n */\n setCurrentPosition(position, _index) {\n return this.#viewController.setCurrentPosition(position);\n }\n\n /**\n * Clear the context.\n */\n clear() {\n // clear the context: reset the transform first\n // store the current transformation matrix\n this.#context.save();\n // use the identity matrix while clearing the canvas\n this.#context.setTransform(1, 0, 0, 1, 0, 0);\n this.#context.clearRect(0, 0, this.#canvas.width, this.#canvas.height);\n // restore the transform\n this.#context.restore();\n }\n\n} // ViewLayer class\n","// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Annotation} from '../image/annotation';\nimport {DrawController} from '../app/drawController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get the display name of the input shape.\n *\n * @param {Konva.Shape} shape The Konva shape.\n * @returns {string} The display name.\n */\nexport function getShapeDisplayName(shape) {\n let displayName = 'shape';\n if (shape instanceof Konva.Line) {\n if (shape.points().length === 4) {\n displayName = 'line';\n } else if (shape.points().length === 6) {\n displayName = 'protractor';\n } else {\n displayName = 'roi';\n }\n } else if (shape instanceof Konva.Rect) {\n displayName = 'rectangle';\n } else if (shape instanceof Konva.Ellipse) {\n displayName = 'ellipse';\n }\n // return\n return displayName;\n}\n\n/**\n * Add annotation command.\n */\nexport class AddAnnotationCommand {\n /**\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * @param {Annotation} annotation The annotation to add.\n * @param {DrawController} drawController The associated draw controller.\n */\n constructor(annotation, drawController) {\n this.#annotation = annotation;\n this.#drawController = drawController;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'AddAnnotation-' + this.#annotation.id;\n }\n\n /**\n * Execute the command.\n */\n execute() {\n this.#drawController.addAnnotation(this.#annotation);\n }\n\n /**\n * Undo the command.\n */\n undo() {\n this.#drawController.removeAnnotation(this.#annotation.id);\n }\n}\n\n/**\n * Remove annotation command.\n */\nexport class RemoveAnnotationCommand {\n /**\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * @param {Annotation} annotation The annotation to remove.\n * @param {DrawController} drawController The associated draw controller.\n */\n constructor(annotation, drawController) {\n this.#annotation = annotation;\n this.#drawController = drawController;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'RemoveAnnotation-' + this.#annotation.id;\n }\n\n /**\n * Execute the command.\n */\n execute() {\n this.#drawController.removeAnnotation(this.#annotation.id);\n }\n\n /**\n * Undo the command.\n */\n undo() {\n this.#drawController.addAnnotation(this.#annotation);\n }\n}\n\n/**\n * Update annotation command.\n */\nexport class UpdateAnnotationCommand {\n /**\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * Original annnotation properties.\n *\n * @type {object}\n */\n #originalProps;\n\n /**\n * New annotation properties.\n *\n * @type {object}\n */\n #newProps;\n\n /**\n * @param {Annotation} annotation The annotation to update.\n * @param {object} originaProps The original annotation properties.\n * @param {object} newProps The new annotation properties.\n * @param {DrawController} drawController The associated draw controller.\n */\n constructor(annotation, originaProps, newProps, drawController) {\n this.#annotation = annotation;\n this.#drawController = drawController;\n this.#originalProps = originaProps;\n this.#newProps = newProps;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'UpdateAnnotation-' + this.#annotation.id;\n }\n\n /**\n * Execute the command.\n */\n execute() {\n for (const prop in this.#newProps) {\n this.#annotation[prop] = this.#newProps[prop];\n }\n this.#drawController.updateAnnotation(this.#annotation);\n }\n\n /**\n * Undo the command.\n */\n undo() {\n for (const prop in this.#originalProps) {\n this.#annotation[prop] = this.#originalProps[prop];\n }\n this.#drawController.updateAnnotation(this.#annotation);\n }\n}\n/**\n * Draw group command.\n *\n * TODO: remove.\n */\nexport class DrawGroupCommand {\n\n /**\n * The group to draw.\n *\n * @type {Konva.Group}\n */\n #group;\n\n /**\n * The shape display name.\n *\n * @type {string}\n */\n #name;\n\n /**\n * The draw layer.\n *\n * @type {DrawLayer}\n */\n #layer;\n\n /**\n * Flag to send events.\n *\n * @type {boolean}\n */\n #isSilent;\n\n /**\n * The group parent.\n *\n * @type {object}\n */\n #parent;\n\n /**\n * @param {Konva.Group} group The group draw.\n * @param {string} name The shape display name.\n * @param {DrawLayer} layer The layer where to draw the group.\n * @param {boolean} [silent] Whether to send a creation event or not.\n */\n constructor(group, name, layer, silent) {\n this.#group = group;\n this.#name = name;\n this.#layer = layer;\n this.#isSilent = (typeof silent === 'undefined') ? false : silent;\n this.#parent = group.getParent();\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Draw-' + this.#name;\n }\n\n /**\n * Execute the command.\n *\n * @fires DrawGroupCommand#drawcreate\n */\n execute() {\n // add the group to the parent (in case of undo/redo)\n this.#parent.add(this.#group);\n // draw\n this.#layer.getKonvaLayer().draw();\n // callback\n if (!this.#isSilent) {\n /**\n * Draw create event.\n *\n * @event DrawGroupCommand#drawcreate\n * @type {object}\n * @property {string} id The id of the created draw.\n * @property {string} srclayerid The id of the layer of the draw.\n * @property {string} dataid The associated data id.\n */\n this.onExecute({\n type: 'drawcreate',\n id: this.#group.id(),\n srclayerid: this.#layer.getId(),\n dataid: this.#layer.getDataId()\n });\n }\n }\n\n /**\n * Undo the command.\n *\n * @fires DeleteGroupCommand#drawdelete\n */\n undo() {\n // remove the group from the parent layer\n this.#group.remove();\n // draw\n this.#layer.getKonvaLayer().draw();\n // callback\n this.onUndo({\n type: 'drawdelete',\n id: this.#group.id(),\n srclayerid: this.#layer.getId(),\n dataid: this.#layer.getDataId()\n });\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // DrawGroupCommand class\n","import {AnnotationGroup} from '../image/annotation';\nimport {RemoveAnnotationCommand} from '../tools/drawCommands';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Draw controller.\n */\nexport class DrawController {\n\n /**\n * The annotation group.\n *\n * @type {AnnotationGroup}\n */\n #annotationGroup;\n\n /**\n * Get an annotation.\n *\n * @param {string} id The annotation id.\n * @returns {Annotation|undefined} The annotation.\n */\n getAnnotation(id) {\n return this.#annotationGroup.find(id);\n }\n\n /**\n * Get the annotation group.\n *\n * @returns {AnnotationGroup} The list.\n */\n getAnnotationGroup() {\n return this.#annotationGroup;\n }\n\n /**\n * Add an annotation.\n *\n * @param {Annotation} annotation The annotation to add.\n */\n addAnnotation(annotation) {\n this.#annotationGroup.add(annotation);\n }\n\n /**\n * Update an anotation from the list.\n *\n * @param {Annotation} annotation The annotation to update.\n */\n updateAnnotation(annotation) {\n this.#annotationGroup.update(annotation);\n }\n\n /**\n * Remove an anotation for the list.\n *\n * @param {string} id The id of the annotation to remove.\n */\n removeAnnotation(id) {\n this.#annotationGroup.remove(id);\n }\n\n /**\n * Remove an annotation via a remove command (triggers draw actions).\n *\n * @param {string} id The annotation id.\n * @param {Function} exeCallback The undo stack callback.\n */\n removeAnnotationWithCommand(id, exeCallback) {\n const annotation = this.getAnnotation(id);\n // create remove annotation command\n const command = new RemoveAnnotationCommand(annotation, this);\n // add command to undo stack\n exeCallback(command);\n // execute command: triggers draw remove\n command.execute();\n }\n\n /**\n * Remove all annotations via remove commands (triggers draw actions).\n *\n * @param {Function} exeCallback The undo stack callback.\n */\n removeAllAnnotationsWithCommand(exeCallback) {\n for (const annotation of this.#annotationGroup.getList()) {\n this.removeAnnotationWithCommand(annotation.id, exeCallback);\n }\n }\n\n /**\n * @param {AnnotationGroup} [group] Optional annotation group.\n */\n constructor(group) {\n if (typeof group !== 'undefined') {\n this.#annotationGroup = group;\n } else {\n this.#annotationGroup = new AnnotationGroup();\n }\n }\n\n /**\n * Check if the annotation group contains a meta data value.\n *\n * @param {string} key The key to check.\n * @returns {boolean} True if the meta data is present.\n */\n hasAnnotationMeta(key) {\n return this.#annotationGroup.hasMeta(key);\n }\n\n /**\n * Set an annotation meta data.\n *\n * @param {string} key The meta data to set.\n * @param {string} value The value of the meta data.\n */\n setAnnotationMeta(key, value) {\n this.#annotationGroup.setMeta(key, value);\n }\n\n /**\n * Get draw store details.\n *\n * @deprecated\n */\n getDrawStoreDetails() {\n // does nothing\n }\n\n} // class DrawController\n","import {logger} from '../utils/logger';\nimport {UpdateAnnotationCommand} from './drawCommands';\nimport {validateAnchorPosition} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Draw shape editor.\n */\nexport class DrawShapeEditor {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Current shape factory.\n *\n * @type {object}\n */\n #currentFactory = null;\n\n /**\n * Edited shape.\n *\n * @type {Konva.Shape}\n */\n #shape = null;\n\n /**\n * Associated draw layer. Used to bound anchor move.\n *\n * @type {DrawLayer}\n */\n #drawLayer;\n\n /**\n * The associated annotation.\n *\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * Active flag.\n *\n * @type {boolean}\n */\n #isActive = false;\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Set the shape to edit.\n *\n * @param {Konva.Shape} inshape The shape to edit.\n * @param {DrawLayer} drawLayer The associated draw layer.\n * @param {Annotation} annotation The associated annotation.\n */\n setShape(inshape, drawLayer, annotation) {\n this.#shape = inshape;\n this.#drawLayer = drawLayer;\n this.#annotation = annotation;\n\n if (this.#shape) {\n // remove old anchors\n this.#removeAnchors();\n\n this.#currentFactory = annotation.getFactory();\n if (this.#currentFactory === null) {\n throw new Error('Could not find a factory to update shape.');\n }\n\n // add new anchors\n this.#addAnchors();\n }\n }\n\n /**\n * Get the edited shape.\n *\n * @returns {Konva.Shape} The edited shape.\n */\n getShape() {\n return this.#shape;\n }\n\n /**\n * Get the edited annotation.\n *\n * @returns {Annotation} The annotation.\n */\n getAnnotation() {\n return this.#annotation;\n }\n\n /**\n * Get the active flag.\n *\n * @returns {boolean} The active flag.\n */\n isActive() {\n return this.#isActive;\n }\n\n /**\n * Enable the editor. Redraws the layer.\n */\n enable() {\n this.#isActive = true;\n if (this.#shape) {\n this.#setAnchorsVisible(true);\n if (this.#shape.getLayer()) {\n this.#shape.getLayer().draw();\n }\n }\n }\n\n /**\n * Disable the editor. Redraws the layer.\n */\n disable() {\n this.#isActive = false;\n if (this.#shape) {\n this.#setAnchorsVisible(false);\n if (this.#shape.getLayer()) {\n this.#shape.getLayer().draw();\n }\n }\n }\n\n /**\n * Reset the editor.\n */\n reset() {\n this.#shape = undefined;\n this.#drawLayer = undefined;\n this.#annotation = undefined;\n }\n\n /**\n * Reset the anchors.\n */\n resetAnchors() {\n // remove previous controls\n this.#removeAnchors();\n // add anchors\n this.#addAnchors();\n // set them visible\n this.#setAnchorsVisible(true);\n }\n\n /**\n * Apply a function on all anchors.\n *\n * @param {object} func A f(shape) function.\n */\n #applyFuncToAnchors(func) {\n if (this.#shape && this.#shape.getParent()) {\n const anchors = this.#shape.getParent().find('.anchor');\n anchors.forEach(func);\n }\n }\n\n /**\n * Set anchors visibility.\n *\n * @param {boolean} flag The visible flag.\n */\n #setAnchorsVisible(flag) {\n this.#applyFuncToAnchors(function (anchor) {\n anchor.visible(flag);\n });\n }\n\n /**\n * Set anchors active.\n *\n * @param {boolean} flag The active (on/off) flag.\n */\n setAnchorsActive(flag) {\n let func = null;\n if (flag) {\n func = (anchor) => {\n this.#setAnchorOn(anchor);\n };\n } else {\n func = (anchor) => {\n this.#setAnchorOff(anchor);\n };\n }\n this.#applyFuncToAnchors(func);\n }\n\n /**\n * Remove anchors.\n */\n #removeAnchors() {\n this.#applyFuncToAnchors(function (anchor) {\n anchor.remove();\n });\n }\n\n /**\n * Add the shape anchors.\n */\n #addAnchors() {\n // exit if no shape or no layer\n if (!this.#shape || !this.#shape.getLayer()) {\n return;\n }\n // get shape group\n const group = this.#shape.getParent();\n\n // activate and add anchors to group\n const anchors =\n this.#currentFactory.getAnchors(this.#shape, this.#app.getStyle());\n for (let i = 0; i < anchors.length; ++i) {\n // set anchor on\n this.#setAnchorOn(anchors[i]);\n // add the anchor to the group\n group.add(anchors[i]);\n }\n }\n\n /**\n * Get a simple clone of the input anchor.\n *\n * @param {Konva.Shape} anchor The anchor to clone.\n * @returns {object} A clone of the input anchor.\n */\n // #getClone(anchor) {\n // // create closure to properties\n // const parent = anchor.getParent();\n // const id = anchor.id();\n // const x = anchor.x();\n // const y = anchor.y();\n // // create clone object\n // const clone = {};\n // clone.getParent = function () {\n // return parent;\n // };\n // clone.id = function () {\n // return id;\n // };\n // clone.x = function () {\n // return x;\n // };\n // clone.y = function () {\n // return y;\n // };\n // return clone;\n // }\n\n /**\n * Set the anchor on listeners.\n *\n * @param {Konva.Ellipse} anchor The anchor to set on.\n */\n #setAnchorOn(anchor) {\n let originaMathShape;\n\n // drag start listener\n anchor.on('dragstart.edit', (event) => {\n // prevent bubbling upwards\n event.cancelBubble = true;\n // store original math shape\n originaMathShape = this.#annotation.mathShape;\n });\n // drag move listener\n anchor.on('dragmove.edit', (event) => {\n const anchor = event.target;\n if (!(anchor instanceof Konva.Shape)) {\n return;\n }\n // validate the anchor position\n validateAnchorPosition(this.#drawLayer.getBaseSize(), anchor);\n if (typeof this.#currentFactory.constrainAnchorMove !== 'undefined') {\n this.#currentFactory.constrainAnchorMove(anchor);\n }\n\n // udpate annotation\n this.#currentFactory.updateAnnotationOnAnchorMove(\n this.#annotation, anchor);\n // udpate shape\n this.#currentFactory.updateShapeGroupOnAnchorMove(\n this.#annotation, anchor, this.#app.getStyle());\n\n // redraw\n if (anchor.getLayer()) {\n anchor.getLayer().draw();\n } else {\n logger.warn('No layer to draw the anchor!');\n }\n // prevent bubbling upwards\n event.cancelBubble = true;\n });\n // drag end listener\n anchor.on('dragend.edit', (event) => {\n // update annotation command\n const newMathShape = this.#annotation.mathShape;\n const command = new UpdateAnnotationCommand(\n this.#annotation,\n {mathShape: originaMathShape},\n {mathShape: newMathShape},\n this.#drawLayer.getDrawController()\n );\n this.#app.addToUndoStack(command);\n // update original shape\n originaMathShape = newMathShape;\n\n // prevent bubbling upwards\n event.cancelBubble = true;\n });\n // mouse down listener\n anchor.on('mousedown touchstart', (event) => {\n const anchor = event.target;\n anchor.moveToTop();\n });\n // mouse over styling\n anchor.on('mouseover.edit', (event) => {\n const anchor = event.target;\n if (!(anchor instanceof Konva.Shape)) {\n return;\n }\n // style is handled by the group\n anchor.stroke('#ddd');\n if (anchor.getLayer()) {\n anchor.getLayer().draw();\n } else {\n logger.warn('No layer to draw the anchor!');\n }\n });\n // mouse out styling\n anchor.on('mouseout.edit', (event) => {\n const anchor = event.target;\n if (!(anchor instanceof Konva.Shape)) {\n return;\n }\n // style is handled by the group\n anchor.stroke('#999');\n if (anchor.getLayer()) {\n anchor.getLayer().draw();\n } else {\n logger.warn('No layer to draw the anchor!');\n }\n });\n }\n\n /**\n * Set the anchor off listeners.\n *\n * @param {Konva.Ellipse} anchor The anchor to set off.\n */\n #setAnchorOff(anchor) {\n anchor.off('dragstart.edit');\n anchor.off('dragmove.edit');\n anchor.off('dragend.edit');\n anchor.off('mousedown touchstart');\n anchor.off('mouseover.edit');\n anchor.off('mouseout.edit');\n }\n\n} // class Editor\n","import Konva from 'konva';\n\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\nimport {DrawLayer} from '../gui/drawLayer';\n/* eslint-enable no-unused-vars */\n\nexport class DrawTrash {\n /**\n * Trash draw: a cross.\n *\n * @type {Konva.Group}\n */\n #trash;\n\n constructor() {\n this.createTrashIcon();\n\n }\n\n /**\n * Creates the trash icon o positionates it.\n */\n createTrashIcon() {\n this.#trash = new Konva.Group();\n // first line of the cross\n const trashLine1 = new Konva.Line({\n points: [-10, -10, 10, 10],\n stroke: 'red'\n });\n // second line of the cross\n const trashLine2 = new Konva.Line({\n points: [10, -10, -10, 10],\n stroke: 'red'\n });\n this.#trash.width(20);\n this.#trash.height(20);\n this.#trash.add(trashLine1);\n this.#trash.add(trashLine2);\n }\n\n /**\n *\n * Activates the trash, by showing the icon into the layer draw layer.\n *\n * @param {DrawLayer} drawLayer The draw layer where to draw.\n */\n activate(drawLayer) {\n const stage = drawLayer.getKonvaStage();\n const scale = stage.scale();\n const konvaLayer = drawLayer.getKonvaLayer();\n const invscale = {x: 1 / scale.x, y: 1 / scale.y};\n this.#trash.x(stage.offset().x + (stage.width() / (2 * scale.x)));\n this.#trash.y(stage.offset().y + (stage.height() / (15 * scale.y)));\n this.#trash.scale(invscale);\n konvaLayer.add(this.#trash);\n // draw\n konvaLayer.draw();\n }\n\n /**\n *\n * Change colour on trash over.\n *\n * @param {Scalar2D} eventPosition The event drag move position.\n * @param {Konva.Group} shapeGroup The shape group whose colour\n * must be change.\n * @param {string} originalShapeColour The original shape colour.\n */\n changeChildrenColourOnTrashHover(eventPosition,\n shapeGroup, originalShapeColour) {\n if (this.isOverTrash(eventPosition)) {\n this.changeGroupChildrenColour(this.#trash, 'orange');\n this.changeGroupChildrenColour(shapeGroup, 'red');\n return;\n\n }\n this.changeGroupChildrenColour(this.#trash, 'red');\n this.changeGroupChildrenColour(shapeGroup, originalShapeColour);\n }\n\n /**\n * Change colour on trash out.\n *\n * @param {Konva.Group} group The group whose colour must be change.\n * @param {string} colour The new colour to be set.\n */\n changeGroupChildrenColour(group, colour) {\n group.getChildren().forEach(function (tshape) {\n if (tshape instanceof Konva.Shape &&\n typeof tshape.stroke !== 'undefined') {\n tshape.stroke(colour);\n }\n });\n }\n\n /**\n * Removes the trash from the draw layer.\n */\n remove() {\n this.#trash.remove();\n }\n\n /**\n * Determines if the event is over trash.\n *\n * @param {Scalar2D} eventPosition The event position.\n * @returns {boolean} True if the event is over trash.\n */\n isOverTrash(eventPosition) {\n const trashHalfWidth =\n this.#trash.width() * Math.abs(this.#trash.scaleX()) / 2;\n const trashHalfHeight =\n this.#trash.height() * Math.abs(this.#trash.scaleY()) / 2;\n return Math.abs(eventPosition.x - this.#trash.x()) < trashHalfWidth &&\n Math.abs(eventPosition.y - this.#trash.y()) < trashHalfHeight;\n }\n\n}","import {\n getMousePoint,\n customUI\n} from '../gui/generic';\nimport {\n RemoveAnnotationCommand,\n UpdateAnnotationCommand\n} from './drawCommands';\nimport {\n isNodeNameShape,\n isNodeNameLabel,\n validateGroupPosition\n} from './drawBounds';\nimport {DrawShapeEditor} from './drawShapeEditor';\nimport {DrawTrash} from './drawTrash';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {LayerGroup} from '../gui/layerGroup';\nimport {Scalar2D} from '../math/scalar';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Annotation} from '../image/annotation';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Draw shape handler: handle action on existing shapes.\n */\nexport class DrawShapeHandler {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Shape editor.\n *\n * @type {DrawShapeEditor}\n */\n #shapeEditor;\n\n /**\n * Trash draw: a cross.\n *\n * @type {DrawTrash}\n */\n #trash;\n\n /**\n * Mouse cursor.\n *\n * @type {string}\n */\n #mouseOverCursor = 'pointer';\n\n /**\n * Original mouse cursor.\n *\n * @type {string}\n */\n #originalCursor;\n\n /**\n * Shape with mouse over.\n *\n * @type {Konva.Group}\n */\n #mouseOverShapeGroup;\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#shapeEditor = new DrawShapeEditor(app);\n this.#trash = new DrawTrash();\n }\n\n /**\n * Set the draw editor shape.\n *\n * @param {Konva.Shape} shape The shape to edit.\n * @param {DrawLayer} drawLayer The layer the shape belongs to.\n */\n setEditorShape(shape, drawLayer) {\n if (shape &&\n shape instanceof Konva.Shape &&\n shape !== this.#shapeEditor.getShape()) {\n // disable\n this.#shapeEditor.disable();\n // set shape\n this.#shapeEditor.setShape(\n shape,\n drawLayer,\n drawLayer.getDrawController().getAnnotation(shape.getParent().id()));\n // enable\n this.#shapeEditor.enable();\n }\n }\n\n /**\n * Get the currently edited shape group.\n *\n * @returns {Konva.Group|undefined} The edited group.\n */\n getEditorShapeGroup() {\n let res;\n if (this.#shapeEditor.isActive()) {\n res = this.#shapeEditor.getShape().getParent();\n if (!(res instanceof Konva.Group)) {\n return;\n }\n }\n return res;\n }\n\n /**\n * Get the currently edited annotation.\n *\n * @returns {Annotation|undefined} The edited annotation.\n */\n getEditorAnnotation() {\n let res;\n if (this.#shapeEditor.isActive()) {\n res = this.#shapeEditor.getAnnotation();\n }\n return res;\n }\n\n /**\n * Disable and reset the shape editor.\n */\n disableAndResetEditor() {\n this.#shapeEditor.disable();\n this.#shapeEditor.reset();\n }\n\n /**\n * Get the real position from an event.\n * TODO: use layer method?\n *\n * @param {Scalar2D} index The input index as {x,y}.\n * @param {DrawLayer} drawLayer The origin draw layer.\n * @returns {Scalar2D} The real position in the image as {x,y}.\n */\n #getRealPosition(index, drawLayer) {\n const stage = drawLayer.getKonvaStage();\n return {\n x: stage.offset().x + index.x / stage.scale().x,\n y: stage.offset().y + index.y / stage.scale().y\n };\n }\n\n /**\n * Store specific mouse over cursor.\n *\n * @param {string} cursor The cursor name.\n */\n storeMouseOverCursor(cursor) {\n this.#mouseOverCursor = cursor;\n }\n\n /**\n * Handle shape group mouseover.\n */\n #onMouseOverShapeGroup() {\n // mouse cursor\n this.#originalCursor = document.body.style.cursor;\n document.body.style.cursor = this.#mouseOverCursor;\n // shape opacity\n this.#mouseOverShapeGroup.opacity(0.75);\n }\n\n /**\n * Handle shape group mouseout.\n */\n onMouseOutShapeGroup() {\n // mouse cursor\n if (typeof this.#originalCursor !== 'undefined') {\n document.body.style.cursor = this.#originalCursor;\n this.#originalCursor = undefined;\n }\n // shape opacity\n if (typeof this.#mouseOverShapeGroup !== 'undefined') {\n this.#mouseOverShapeGroup.opacity(1);\n }\n }\n\n /**\n * Add shape group mouse over and out listeners: updates\n * shape group opacity and cursor.\n *\n * @param {Konva.Group} shapeGroup The shape group.\n */\n #addShapeOverListeners(shapeGroup) {\n // handle mouse over\n shapeGroup.on('mouseover', () => {\n this.#mouseOverShapeGroup = shapeGroup;\n this.#onMouseOverShapeGroup();\n });\n\n // handle mouse out\n shapeGroup.on('mouseout', () => {\n this.onMouseOutShapeGroup();\n this.#mouseOverShapeGroup = undefined;\n });\n }\n\n /**\n * Remove shape group mouse over and out listeners.\n *\n * @param {Konva.Group} shapeGroup The shape group.\n */\n #removeShapeOverListeners(shapeGroup) {\n shapeGroup.off('mouseover');\n shapeGroup.off('mouseout');\n }\n\n /**\n * Add shape group listeners.\n *\n * @param {DrawLayer} drawLayer The origin draw layer.\n * @param {Konva.Group} shapeGroup The shape group to set on.\n * @param {Annotation} annotation The associated annnotation.\n */\n addShapeListeners(drawLayer, shapeGroup, annotation) {\n // shape mouse over\n this.#addShapeOverListeners(shapeGroup);\n\n const konvaLayer = drawLayer.getKonvaLayer();\n\n // make shape draggable\n const shape = shapeGroup.getChildren(isNodeNameShape)[0];\n if (!(shape instanceof Konva.Shape)) {\n return;\n }\n shape.draggable(true);\n\n // make label draggable\n const label = shapeGroup.getChildren(isNodeNameLabel)[0];\n if (!(label instanceof Konva.Label)) {\n return;\n }\n label.draggable(true);\n\n let isShapeLabelLinked = true;\n\n // cache vars\n let dragStartPos;\n let previousPos;\n let originaMathShape;\n let colour;\n\n // shape listeners ------------------------------------------\n\n // drag start event handling\n shape.on('dragstart.draw', (event) => {\n // store colour\n colour = shape.stroke();\n // store pos\n dragStartPos = {\n x: shape.x(),\n y: shape.y()\n };\n previousPos = {\n x: event.target.x(),\n y: event.target.y()\n };\n // store the original math shape\n originaMathShape = annotation.mathShape;\n\n // display trash\n this.#trash.activate(drawLayer);\n // deactivate anchors to avoid events on null shape\n this.#shapeEditor.setAnchorsActive(false);\n // draw\n konvaLayer.draw();\n });\n // drag move event handling\n shape.on('dragmove.draw', (event) => {\n // move associated shapes (but not label)\n const diff = {\n x: event.target.x() - previousPos.x,\n y: event.target.y() - previousPos.y\n };\n const children = shapeGroup.getChildren();\n for (const child of children) {\n // skip shape and label\n if (child === event.target ||\n (child.name() === 'label' && !isShapeLabelLinked)\n ) {\n continue;\n }\n // move other nodes\n child.move(diff);\n }\n\n // store pos\n previousPos = {\n x: event.target.x(),\n y: event.target.y()\n };\n\n // validate the group position\n validateGroupPosition(drawLayer.getBaseSize(), shapeGroup);\n\n // get appropriate factory\n const factory = annotation.getFactory();\n // update annotation\n factory.updateAnnotationOnTranslation(annotation, diff);\n // update label\n factory.updateLabelContent(annotation, shapeGroup, this.#app.getStyle());\n\n // highlight trash when on it\n const mousePoint = getMousePoint(event.evt);\n const offset = {\n x: mousePoint.getX(),\n y: mousePoint.getY()\n };\n const eventPos = this.#getRealPosition(offset, drawLayer);\n this.#trash.changeChildrenColourOnTrashHover(eventPos,\n shapeGroup, colour);\n // draw\n konvaLayer.draw();\n });\n // drag end event handling\n shape.on('dragend.draw', (event) => {\n // remove trash\n this.#trash.remove();\n // activate(false) will also trigger a dragend.draw\n if (typeof event === 'undefined' ||\n typeof event.evt === 'undefined') {\n return;\n }\n const pos = {x: shape.x(), y: shape.y()};\n // delete case\n const mousePoint = getMousePoint(event.evt);\n const offset = {\n x: mousePoint.getX(),\n y: mousePoint.getY()\n };\n const eventPos = this.#getRealPosition(offset, drawLayer);\n if (this.#trash.isOverTrash(eventPos)) {\n // compensate for the drag translation\n shapeGroup.x(dragStartPos.x);\n shapeGroup.y(dragStartPos.y);\n // disable editor\n this.#shapeEditor.disable();\n this.#shapeEditor.reset();\n this.#trash.changeGroupChildrenColour(shapeGroup, colour);\n // reset math shape (for undo)\n annotation.mathShape = originaMathShape;\n\n // create remove annotation command\n const command = new RemoveAnnotationCommand(\n annotation,\n drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command: triggers draw remove\n command.execute();\n\n // reset cursor\n this.onMouseOutShapeGroup();\n } else {\n const translation = {\n x: pos.x - dragStartPos.x,\n y: pos.y - dragStartPos.y\n };\n if (translation.x !== 0 || translation.y !== 0) {\n // update annotation command\n const newMathShape = annotation.mathShape;\n const command = new UpdateAnnotationCommand(\n annotation,\n {mathShape: originaMathShape},\n {mathShape: newMathShape},\n drawLayer.getDrawController()\n );\n this.#app.addToUndoStack(command);\n // update original shape\n originaMathShape = newMathShape;\n }\n // reset anchors\n this.#shapeEditor.setAnchorsActive(true);\n this.#shapeEditor.resetAnchors();\n }\n // draw\n konvaLayer.draw();\n // reset start position\n dragStartPos = {\n x: shape.x(),\n y: shape.y()\n };\n });\n\n // label listeners ------------------------------------------\n let originalLabelPosition;\n\n // drag start event handling\n label.on('dragstart.draw', (/*event*/) => {\n // unlink shape and label at first label move\n isShapeLabelLinked = false;\n // store pos\n dragStartPos = {\n x: label.x(),\n y: label.y()\n };\n // store original position\n originalLabelPosition = annotation.labelPosition;\n });\n // drag end event handling\n label.on('dragend.draw', (/*event*/) => {\n const translation = {\n x: label.x() - dragStartPos.x,\n y: label.y() - dragStartPos.y\n };\n if (translation.x !== 0 || translation.y !== 0) {\n // update annotation command\n const newLabelPosition = new Point2D(label.x(), label.y());\n const command = new UpdateAnnotationCommand(\n annotation,\n {labelPosition: originalLabelPosition},\n {labelPosition: newLabelPosition},\n drawLayer.getDrawController()\n );\n this.#app.addToUndoStack(command);\n // update original position\n originalLabelPosition = newLabelPosition;\n }\n dragStartPos = {x: shape.x(), y: shape.y()};\n });\n\n // double click handling: update label\n shapeGroup.on('dblclick', () => {\n // original text expr\n const originalTextExpr = annotation.textExpr;\n\n const onSaveCallback = (annotation) => {\n // new text expr\n const newTextExpr = annotation.textExpr;\n // create annotation update command\n const command = new UpdateAnnotationCommand(\n annotation,\n {textExpr: originalTextExpr},\n {textExpr: newTextExpr},\n drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command\n command.execute();\n };\n\n // call roi dialog\n customUI.openRoiDialog(annotation, onSaveCallback);\n });\n }\n\n /**\n * Remove shape group listeners.\n *\n * @param {Konva.Group} shapeGroup The shape group to set off.\n */\n removeShapeListeners(shapeGroup) {\n // mouse over\n this.#removeShapeOverListeners(shapeGroup);\n // remove listeners from shape\n const shape = shapeGroup.getChildren(isNodeNameShape)[0];\n if (shape instanceof Konva.Shape) {\n shape.draggable(false);\n shape.off('dragstart.draw');\n shape.off('dragmove.draw');\n shape.off('dragend.draw');\n shape.off('dblclick');\n }\n // remove listeners from label\n const label = shapeGroup.getChildren(isNodeNameLabel)[0];\n if (label instanceof Konva.Label) {\n label.draggable(false);\n label.off('dragstart.draw');\n label.off('dragend.draw');\n }\n }\n} // DrawShapeHandler class","import {ListenerHandler} from '../utils/listen';\nimport {DrawController} from '../app/drawController';\nimport {getScaledOffset} from './layerGroup';\nimport {InteractionEventNames} from './generic';\nimport {logger} from '../utils/logger';\nimport {AddAnnotationCommand} from '../tools/drawCommands';\nimport {\n isNodeWithId,\n isPositionNode\n} from '../tools/drawBounds';\nimport {Style} from '../gui/style';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point, Point3D} from '../math/point';\nimport {Index} from '../math/index';\nimport {Vector3D} from '../math/vector';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\nimport {PlaneHelper} from '../image/planeHelper';\nimport {Annotation, AnnotationGroup} from '../image/annotation';\nimport {DrawShapeHandler} from '../tools/drawShapeHandler';\n/* eslint-enable no-unused-vars */\n\n/**\n * Debug function to output the layer hierarchy as text.\n *\n * @param {object} layer The Konva layer.\n * @param {string} prefix A display prefix (used in recursion).\n * @returns {string} A text representation of the hierarchy.\n */\n// function getHierarchyLog(layer, prefix) {\n// if (typeof prefix === 'undefined') {\n// prefix = '';\n// }\n// const kids = layer.getChildren();\n// let log = prefix + '|__ ' + layer.name() + ': ' + layer.id() + '\\n';\n// for (let i = 0; i < kids.length; ++i) {\n// log += getHierarchyLog(kids[i], prefix + ' ');\n// }\n// return log;\n// }\n\n/**\n * Draw layer.\n */\nexport class DrawLayer {\n\n /**\n * The container div.\n *\n * @type {HTMLDivElement}\n */\n #containerDiv;\n\n /**\n * Konva stage.\n *\n * @type {Konva.Stage}\n */\n #konvaStage = null;\n\n /**\n * The layer base size as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSize;\n\n /**\n * The layer base spacing as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSpacing;\n\n /**\n * The layer fit scale.\n *\n * @type {Scalar2D}\n */\n #fitScale = {x: 1, y: 1};\n\n /**\n * The layer flip scale.\n *\n * @type {Scalar3D}\n */\n #flipScale = {x: 1, y: 1, z: 1};\n\n /**\n * The base layer offset.\n *\n * @type {Scalar2D}\n */\n #baseOffset = {x: 0, y: 0};\n\n /**\n * The view offset.\n *\n * @type {Scalar2D}\n */\n #viewOffset = {x: 0, y: 0};\n\n /**\n * The zoom offset.\n *\n * @type {Scalar2D}\n */\n #zoomOffset = {x: 0, y: 0};\n\n /**\n * The flip offset.\n *\n * @type {Scalar2D}\n */\n #flipOffset = {x: 0, y: 0};\n\n /**\n * The draw controller.\n *\n * @type {object}\n */\n #drawController;\n\n /**\n * The plane helper.\n *\n * @type {PlaneHelper}\n */\n #planeHelper;\n\n /**\n * The associated data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Current position group id.\n *\n * @type {string}\n */\n #currentPosGroupId = null;\n\n /**\n * Draw shape handler.\n *\n * @type {DrawShapeHandler|undefined}\n */\n #shapeHandler;\n\n /**\n * @param {HTMLDivElement} containerDiv The layer div, its id will be used\n * as this layer id.\n */\n constructor(containerDiv) {\n this.#containerDiv = containerDiv;\n // specific css class name\n this.#containerDiv.className += ' drawLayer';\n }\n\n /**\n * Set the draw shape handler.\n *\n * @param {DrawShapeHandler|undefined} handler The shape handler.\n */\n setShapeHandler(handler) {\n this.#shapeHandler = handler;\n }\n\n /**\n * Get the associated data id.\n *\n * @returns {string} The id.\n */\n getDataId() {\n return this.#dataId;\n }\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get the Konva stage.\n *\n * @returns {Konva.Stage} The stage.\n */\n getKonvaStage() {\n return this.#konvaStage;\n }\n\n /**\n * Get the Konva layer.\n *\n * @returns {Konva.Layer} The layer.\n */\n getKonvaLayer() {\n // there should only be one layer\n return this.#konvaStage.getLayers()[0];\n }\n\n /**\n * Get the draw controller.\n *\n * @returns {DrawController} The controller.\n */\n getDrawController() {\n return this.#drawController;\n }\n\n /**\n * Set the plane helper.\n *\n * @param {PlaneHelper} helper The helper.\n */\n setPlaneHelper(helper) {\n this.#planeHelper = helper;\n }\n\n // common layer methods [start] ---------------\n\n /**\n * Get the id of the layer.\n *\n * @returns {string} The string id.\n */\n getId() {\n return this.#containerDiv.id;\n }\n\n /**\n * Remove the HTML element from the DOM.\n */\n removeFromDOM() {\n this.#containerDiv.remove();\n }\n\n /**\n * Get the layer base size (without scale).\n *\n * @returns {Scalar2D} The size as {x,y}.\n */\n getBaseSize() {\n return this.#baseSize;\n }\n\n /**\n * Get the layer opacity.\n *\n * @returns {number} The opacity ([0:1] range).\n */\n getOpacity() {\n return this.#konvaStage.opacity();\n }\n\n /**\n * Set the layer opacity.\n *\n * @param {number} alpha The opacity ([0:1] range).\n */\n setOpacity(alpha) {\n this.#konvaStage.opacity(Math.min(Math.max(alpha, 0), 1));\n }\n\n /**\n * Add a flip offset along the layer X axis.\n */\n addFlipOffsetX() {\n // flip offset\n const scale = this.#konvaStage.scale();\n const size = this.#konvaStage.size();\n this.#flipOffset.x += size.width / scale.x;\n // apply\n const offset = this.#konvaStage.offset();\n offset.x += this.#flipOffset.x;\n this.#konvaStage.offset(offset);\n }\n\n /**\n * Add a flip offset along the layer Y axis.\n */\n addFlipOffsetY() {\n // flip offset\n const scale = this.#konvaStage.scale();\n const size = this.#konvaStage.size();\n this.#flipOffset.y += size.height / scale.y;\n // apply\n const offset = this.#konvaStage.offset();\n offset.y += this.#flipOffset.y;\n this.#konvaStage.offset(offset);\n }\n\n /**\n * Flip the scale along the layer X axis.\n */\n flipScaleX() {\n this.#flipScale.x *= -1;\n }\n\n /**\n * Flip the scale along the layer Y axis.\n */\n flipScaleY() {\n this.#flipScale.y *= -1;\n }\n\n /**\n * Flip the scale along the layer Z axis.\n */\n flipScaleZ() {\n this.#flipScale.z *= -1;\n }\n\n /**\n * Set the layer scale.\n *\n * @param {Scalar3D} newScale The scale as {x,y,z}.\n * @param {Point3D} [center] The scale center.\n */\n setScale(newScale, center) {\n const orientedNewScale =\n this.#planeHelper.getTargetOrientedPositiveXYZ({\n x: newScale.x * this.#flipScale.x,\n y: newScale.y * this.#flipScale.y,\n z: newScale.z * this.#flipScale.z,\n });\n const finalNewScale = {\n x: this.#fitScale.x * orientedNewScale.x,\n y: this.#fitScale.y * orientedNewScale.y\n };\n\n const offset = this.#konvaStage.offset();\n\n if (Math.abs(newScale.x) === 1 &&\n Math.abs(newScale.y) === 1 &&\n Math.abs(newScale.z) === 1) {\n // reset zoom offset for scale=1\n const resetOffset = {\n x: offset.x - this.#zoomOffset.x,\n y: offset.y - this.#zoomOffset.y\n };\n // store new offset\n this.#zoomOffset = {x: 0, y: 0};\n this.#konvaStage.offset(resetOffset);\n } else {\n if (typeof center !== 'undefined') {\n let worldCenter = this.#planeHelper.getPlaneOffsetFromOffset3D({\n x: center.getX(),\n y: center.getY(),\n z: center.getZ()\n });\n // center was obtained with viewLayer.displayToMainPlanePos\n // compensated for baseOffset\n // TODO: justify...\n worldCenter = {\n x: worldCenter.x + this.#baseOffset.x,\n y: worldCenter.y + this.#baseOffset.y\n };\n\n const newOffset = getScaledOffset(\n offset, this.#konvaStage.scale(), finalNewScale, worldCenter);\n\n const newZoomOffset = {\n x: this.#zoomOffset.x + newOffset.x - offset.x,\n y: this.#zoomOffset.y + newOffset.y - offset.y\n };\n // store new offset\n this.#zoomOffset = newZoomOffset;\n this.#konvaStage.offset(newOffset);\n }\n }\n\n this.#konvaStage.scale(finalNewScale);\n // update labels\n this.#updateLabelScale(finalNewScale);\n }\n\n /**\n * Set the layer offset.\n *\n * @param {Scalar3D} newOffset The offset as {x,y,z}.\n */\n setOffset(newOffset) {\n const planeNewOffset =\n this.#planeHelper.getPlaneOffsetFromOffset3D(newOffset);\n this.#konvaStage.offset({\n x: planeNewOffset.x +\n this.#viewOffset.x +\n this.#baseOffset.x +\n this.#zoomOffset.x +\n this.#flipOffset.x,\n y: planeNewOffset.y +\n this.#viewOffset.y +\n this.#baseOffset.y +\n this.#zoomOffset.y +\n this.#flipOffset.y\n });\n }\n\n /**\n * Set the base layer offset. Updates the layer offset.\n *\n * @param {Vector3D} scrollOffset The scroll offset vector.\n * @param {Vector3D} planeOffset The plane offset vector.\n * @returns {boolean} True if the offset was updated.\n */\n setBaseOffset(scrollOffset, planeOffset) {\n const scrollIndex = this.#planeHelper.getNativeScrollIndex();\n const newOffset = this.#planeHelper.getPlaneOffsetFromOffset3D({\n x: scrollIndex === 0 ? scrollOffset.getX() : planeOffset.getX(),\n y: scrollIndex === 1 ? scrollOffset.getY() : planeOffset.getY(),\n z: scrollIndex === 2 ? scrollOffset.getZ() : planeOffset.getZ(),\n });\n const needsUpdate = this.#baseOffset.x !== newOffset.x ||\n this.#baseOffset.y !== newOffset.y;\n // reset offset if needed\n if (needsUpdate) {\n const offset = this.#konvaStage.offset();\n this.#konvaStage.offset({\n x: offset.x - this.#baseOffset.x + newOffset.x,\n y: offset.y - this.#baseOffset.y + newOffset.y\n });\n this.#baseOffset = newOffset;\n }\n return needsUpdate;\n }\n\n /**\n * Display the layer.\n *\n * @param {boolean} flag Whether to display the layer or not.\n */\n display(flag) {\n this.#containerDiv.style.display = flag ? '' : 'none';\n }\n\n /**\n * Check if the layer is visible.\n *\n * @returns {boolean} True if the layer is visible.\n */\n isVisible() {\n return this.#containerDiv.style.display === '';\n }\n\n /**\n * Draw the content (imageData) of the layer.\n * The imageData variable needs to be set.\n */\n draw() {\n this.#konvaStage.draw();\n }\n\n /**\n * Initialise the layer: set the canvas and context.\n *\n * @param {Scalar2D} size The image size as {x,y}.\n * @param {Scalar2D} spacing The image spacing as {x,y}.\n */\n initialise(size, spacing) {\n // set locals\n this.#baseSize = size;\n this.#baseSpacing = spacing;\n\n // create stage\n this.#konvaStage = new Konva.Stage({\n container: this.#containerDiv,\n width: this.#baseSize.x,\n height: this.#baseSize.y,\n listening: false\n });\n // reset style\n // (avoids a not needed vertical scrollbar)\n this.#konvaStage.getContent().setAttribute('style', '');\n\n // create layer\n const konvaLayer = new Konva.Layer({\n listening: false,\n visible: true\n });\n this.#konvaStage.add(konvaLayer);\n }\n\n /**\n * Set the annotation group.\n *\n * @param {AnnotationGroup} annotationGroup The annotation group.\n * @param {string} dataId The associated data id.\n * @param {object} exeCallback The undo stack callback.\n */\n setAnnotationGroup(annotationGroup, dataId, exeCallback) {\n this.#dataId = dataId;\n // local listeners\n annotationGroup.addEventListener('addannotation', (event) => {\n // draw annotation\n this.#addAnnnotationDraw(event.data, true);\n this.getKonvaLayer().draw();\n });\n annotationGroup.addEventListener('updateannotation', (event) => {\n // update annotation draw\n this.#updateAnnotationDraw(event.data);\n this.getKonvaLayer().draw();\n });\n annotationGroup.addEventListener('removeannotation', (event) => {\n // remove annotation draw\n this.#removeAnnotationDraw(event.data);\n this.getKonvaLayer().draw();\n });\n\n // create draw controller\n this.#drawController = new DrawController(annotationGroup);\n\n // annotations are allready in the annotation list,\n // -> no need to add them, just draw and save command\n if (annotationGroup.getLength() !== 0) {\n for (const annotation of annotationGroup.getList()) {\n // draw annnotation\n this.#addAnnnotationDraw(annotation, false);\n // create the draw command\n const command = new AddAnnotationCommand(\n annotation, this.getDrawController());\n // add command to undo stack\n exeCallback(command);\n }\n }\n }\n\n /**\n * Get the position group id for an annotation.\n *\n * @param {Annotation} annotation The target annotation.\n * @returns {string|undefined} The group id.\n */\n #getPosGroupId(annotation) {\n const originIndex = annotation.getOriginIndex();\n if (typeof originIndex === 'undefined') {\n console.log('Unknown reference origin for annotation: ' +\n annotation.referenceSopUID);\n return;\n }\n return originIndex.toStringId([2]);\n }\n\n /**\n * Find the shape group associated to an annotation.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Konva.Group|undefined} The shape group.\n */\n #findShapeGroup(annotation) {\n let res;\n\n const posGroupId = this.#getPosGroupId(annotation);\n const layerChildren = this.getKonvaLayer().getChildren(\n isNodeWithId(posGroupId));\n if (layerChildren.length !== 0) {\n const posGroup = layerChildren[0];\n if (!(posGroup instanceof Konva.Group)) {\n return;\n }\n const posChildren = posGroup.getChildren(\n isNodeWithId(annotation.id));\n if (posChildren.length !== 0 &&\n posChildren[0] instanceof Konva.Group) {\n res = posChildren[0];\n }\n }\n return res;\n }\n\n /**\n * Draw an annotation: create the shape group and add it to\n * the Konva layer.\n *\n * @param {Annotation} annotation The annotation to draw.\n * @param {boolean} visible The position group visibility.\n */\n #addAnnnotationDraw(annotation, visible) {\n const posGroupId = this.#getPosGroupId(annotation);\n // Get or create position-group if it does not exist and\n // append it to konvaLayer\n let posGroup = this.getKonvaLayer().getChildren(\n isNodeWithId(posGroupId))[0];\n if (typeof posGroup === 'undefined') {\n posGroup = new Konva.Group({\n id: posGroupId,\n name: 'position-group',\n visible: visible\n });\n this.getKonvaLayer().add(posGroup);\n }\n if (!(posGroup instanceof Konva.Group)) {\n return;\n };\n\n const style = new Style();\n const stage = this.getKonvaStage();\n style.setZoomScale(stage.scale());\n\n // shape group (use first one since it will be removed from\n // the group when we change it)\n const factory = annotation.getFactory();\n const shapeGroup = factory.createShapeGroup(annotation, style);\n // add group to posGroup (switches its parent)\n posGroup.add(shapeGroup);\n\n // activate shape if possible\n if (visible &&\n typeof this.#shapeHandler !== 'undefined'\n ) {\n this.#shapeHandler.addShapeListeners(this, shapeGroup, annotation);\n }\n }\n\n /**\n * Remove an annotation draw.\n *\n * @param {Annotation} annotation The annotation to remove.\n */\n #removeAnnotationDraw(annotation) {\n const shapeGroup = this.#findShapeGroup(annotation);\n if (!(shapeGroup instanceof Konva.Group)) {\n return;\n };\n shapeGroup.remove();\n }\n\n /**\n * Update an annotation draw.\n *\n * @param {Annotation} annotation The annotation to update.\n */\n #updateAnnotationDraw(annotation) {\n // update quantification after math shape update\n annotation.updateQuantification();\n // update draw\n this.#removeAnnotationDraw(annotation);\n this.#addAnnnotationDraw(annotation, true);\n }\n\n /**\n * Fit the layer to its parent container.\n *\n * @param {Scalar2D} containerSize The container size as {x,y}.\n * @param {number} divToWorldSizeRatio The div to world size ratio.\n * @param {Scalar2D} fitOffset The fit offset as {x,y}.\n */\n fitToContainer(containerSize, divToWorldSizeRatio, fitOffset) {\n // update konva\n this.#konvaStage.width(containerSize.x);\n this.#konvaStage.height(containerSize.y);\n\n // fit scale\n const divToImageSizeRatio = {\n x: divToWorldSizeRatio * this.#baseSpacing.x,\n y: divToWorldSizeRatio * this.#baseSpacing.y\n };\n // #scale = inputScale * fitScale * flipScale\n // flipScale does not change here, we can omit it\n // newScale = (#scale / fitScale) * newFitScale\n const newScale = {\n x: this.#konvaStage.scale().x * divToImageSizeRatio.x / this.#fitScale.x,\n y: this.#konvaStage.scale().y * divToImageSizeRatio.y / this.#fitScale.y\n };\n\n // set scales if different from previous\n if (this.#konvaStage.scale().x !== newScale.x ||\n this.#konvaStage.scale().y !== newScale.y) {\n this.#fitScale = divToImageSizeRatio;\n this.#konvaStage.scale(newScale);\n }\n\n // view offset\n const newViewOffset = {\n x: fitOffset.x / divToImageSizeRatio.x,\n y: fitOffset.y / divToImageSizeRatio.y\n };\n // flip offset\n const scaledImageSize = {\n x: containerSize.x / divToImageSizeRatio.x,\n y: containerSize.y / divToImageSizeRatio.y\n };\n const newFlipOffset = {\n x: this.#flipOffset.x !== 0 ? scaledImageSize.x : 0,\n y: this.#flipOffset.y !== 0 ? scaledImageSize.y : 0,\n };\n\n // set offsets if different from previous\n if (this.#viewOffset.x !== newViewOffset.x ||\n this.#viewOffset.y !== newViewOffset.y ||\n this.#flipOffset.x !== newFlipOffset.x ||\n this.#flipOffset.y !== newFlipOffset.y) {\n // update global offset\n this.#konvaStage.offset({\n x: this.#konvaStage.offset().x +\n newViewOffset.x - this.#viewOffset.x +\n newFlipOffset.x - this.#flipOffset.x,\n y: this.#konvaStage.offset().y +\n newViewOffset.y - this.#viewOffset.y +\n newFlipOffset.y - this.#flipOffset.y,\n });\n // update private local offsets\n this.#flipOffset = newFlipOffset;\n this.#viewOffset = newViewOffset;\n }\n }\n\n /**\n * Check the visibility of a given group.\n *\n * @param {string} id The id of the group.\n * @returns {boolean} True if the group is visible.\n */\n isGroupVisible(id) {\n // get the group\n const group = this.getGroup(id);\n if (typeof group === 'undefined') {\n return false;\n }\n // get visibility\n return group.isVisible();\n }\n\n /**\n * Toggle the visibility of a given group.\n *\n * @param {string} id The id of the group.\n * @returns {boolean} False if the group cannot be found.\n */\n toggleGroupVisibility(id) {\n // get the group\n const group = this.getGroup(id);\n if (typeof group === 'undefined') {\n return false;\n }\n // toggle visible\n group.visible(!group.isVisible());\n\n // udpate\n this.draw();\n\n return true;\n }\n\n /**\n * Delete a Draw from the stage.\n *\n * @deprecated\n * @param {string} _id The id of the group to delete.\n * @param {Function} _exeCallback The callback to call once the\n * DeleteCommand has been executed.\n */\n deleteDraw(_id, _exeCallback) {\n // does nothing\n }\n\n /**\n * Delete all Draws from the stage.\n *\n * @deprecated\n * @param {Function} _exeCallback The callback to call once the\n * DeleteCommand has been executed.\n */\n deleteDraws(_exeCallback) {\n // does nothing\n }\n\n /**\n * Get the total number of draws of this layer\n * (at all positions).\n *\n * @returns {number|undefined} The total number of draws.\n */\n getNumberOfDraws() {\n const posGroups = this.getKonvaLayer().getChildren();\n let count = 0;\n for (const posGroup of posGroups) {\n if (posGroup instanceof Konva.Group) {\n count += posGroup.getChildren().length;\n }\n }\n return count;\n }\n\n /**\n * Enable and listen to container interaction events.\n */\n bindInteraction() {\n this.#konvaStage.listening(true);\n // allow pointer events\n this.#containerDiv.style.pointerEvents = 'auto';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n this.#containerDiv.addEventListener(names[i], this.#fireEvent);\n }\n }\n\n /**\n * Disable and stop listening to container interaction events.\n */\n unbindInteraction() {\n this.#konvaStage.listening(false);\n // disable pointer events\n this.#containerDiv.style.pointerEvents = 'none';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n this.#containerDiv.removeEventListener(names[i], this.#fireEvent);\n }\n }\n\n /**\n * Set the current position.\n *\n * @param {Point} position The new position.\n * @param {Index} index The new index.\n * @returns {boolean} True if the position was updated.\n */\n setCurrentPosition(position, index) {\n this.activateDrawLayer(\n index, this.#planeHelper.getScrollIndex());\n // TODO: add check\n return true;\n }\n\n /**\n * Activate the current draw layer.\n *\n * @param {Index} index The current position.\n * @param {number} scrollIndex The scroll index.\n */\n activateDrawLayer(index, scrollIndex) {\n // TODO: add layer info\n // get and store the position group id\n const dims = [scrollIndex];\n for (let j = 3; j < index.length(); ++j) {\n dims.push(j);\n }\n this.#currentPosGroupId = index.toStringId(dims);\n\n // get all position groups\n const posGroups = this.getKonvaLayer().getChildren(isPositionNode);\n // reset or set the visible property\n let visible;\n for (let i = 0, leni = posGroups.length; i < leni; ++i) {\n visible = false;\n if (posGroups[i].id() === this.#currentPosGroupId) {\n visible = true;\n }\n // group members inherit the visible property\n posGroups[i].visible(visible);\n }\n\n // show current draw layer\n this.getKonvaLayer().draw();\n }\n\n /**\n * Get the current position group.\n *\n * @returns {Konva.Group|undefined} The Konva.Group.\n */\n getCurrentPosGroup() {\n // get position groups\n const posGroups = this.getKonvaLayer().getChildren((node) => {\n return node.id() === this.#currentPosGroupId;\n });\n // if one group, use it\n // if no group, create one\n let posGroup;\n if (posGroups.length === 1) {\n if (posGroups[0] instanceof Konva.Group) {\n posGroup = posGroups[0];\n }\n } else if (posGroups.length === 0) {\n posGroup = new Konva.Group();\n posGroup.name('position-group');\n posGroup.id(this.#currentPosGroupId);\n posGroup.visible(true); // dont inherit\n // add new group to layer\n this.getKonvaLayer().add(posGroup);\n } else {\n logger.warn('Unexpected number of draw position groups.');\n }\n // return\n return posGroup;\n }\n\n /**\n * Get the non current position groups. Used to stop listeners.\n *\n * @returns {object[]} The groups that do not have the current position id.\n */\n getNonCurrentPosGroup() {\n // get position groups\n return this.getKonvaLayer().getChildren((node) => {\n return node.id() !== this.#currentPosGroupId;\n });\n }\n\n /**\n * Get a Konva group using its id.\n *\n * @param {string} id The group id.\n * @returns {object|undefined} The Konva group.\n */\n getGroup(id) {\n const group = this.getKonvaLayer().findOne('#' + id);\n if (typeof group === 'undefined') {\n logger.warn('Cannot find node with id: ' + id\n );\n }\n return group;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n event.srclayerid = this.getId();\n event.dataid = this.#dataId;\n this.#listenerHandler.fireEvent(event);\n };\n\n // common layer methods [end] ---------------\n\n /**\n * Update label scale: compensate for it so\n * that label size stays visually the same.\n *\n * @param {Scalar2D} scale The scale to compensate for as {x,y}.\n */\n #updateLabelScale(scale) {\n // same formula as in style::applyZoomScale:\n // compensate for scale and times 2 so that font 10 looks like a 10\n const ratioX = 2 / scale.x;\n const ratioY = 2 / scale.y;\n // compensate scale for labels\n const labels = this.#konvaStage.find('Label');\n for (let i = 0; i < labels.length; ++i) {\n labels[i].scale({x: ratioX, y: ratioY});\n }\n }\n\n} // DrawLayer class\n","import {Point, Point3D} from '../math/point';\nimport {WindowLevel} from '../image/windowLevel';\nimport {LayerGroup} from './layerGroup';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewLayer} from '../gui/viewLayer';\nimport {DrawLayer} from '../gui/drawLayer';\n/* eslint-enable no-unused-vars */\n\n/**\n * Window/level binder.\n */\nexport class WindowLevelBinder {\n getEventType = function () {\n return 'wlchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const viewLayers = layerGroup.getViewLayersByDataId(event.dataid);\n if (viewLayers.length !== 0) {\n const vc = viewLayers[0].getViewController();\n if (event.value.length === 2) {\n const wl = new WindowLevel(event.value[0], event.value[1]);\n vc.setWindowLevel(wl);\n }\n if (event.value.length === 3) {\n vc.setWindowLevelPreset(event.value[2]);\n }\n }\n };\n };\n}\n\n/**\n * Colour map binder.\n */\nexport class ColourMapBinder {\n getEventType = function () {\n return 'colourmapchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const viewLayers = layerGroup.getViewLayersByDataId(event.dataid);\n if (viewLayers.length !== 0) {\n const vc = viewLayers[0].getViewController();\n vc.setColourMap(event.value[0]);\n }\n };\n };\n}\n\n/**\n * Position binder.\n */\nexport class PositionBinder {\n getEventType = function () {\n return 'positionchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const pointValues = event.value[1];\n const vc = layerGroup.getActiveViewLayer().getViewController();\n // handle different number of dimensions\n const currentPos = vc.getCurrentPosition();\n const currentDims = currentPos.length();\n const inputDims = pointValues.length;\n if (inputDims !== currentDims) {\n if (inputDims === currentDims - 1) {\n // add missing dim, for ex: input 3D -> current 4D\n pointValues.push(currentPos.get(currentDims - 1));\n } else if (inputDims === currentDims + 1) {\n // remove extra dim, for ex: input 4D -> current 3D\n pointValues.pop();\n }\n }\n vc.setCurrentPosition(new Point(pointValues));\n };\n };\n}\n\n/**\n * Zoom binder.\n */\nexport class ZoomBinder {\n getEventType = function () {\n return 'zoomchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const scale = {\n x: event.value[0],\n y: event.value[1],\n z: event.value[2]\n };\n let center;\n if (event.value.length === 6) {\n center = new Point3D(\n event.value[3],\n event.value[4],\n event.value[5]\n );\n }\n layerGroup.setScale(scale, center);\n layerGroup.draw();\n };\n };\n}\n\n/**\n * Offset binder.\n */\nexport class OffsetBinder {\n getEventType = function () {\n return 'offsetchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n layerGroup.setOffset({\n x: event.value[0],\n y: event.value[1],\n z: event.value[2]\n });\n layerGroup.draw();\n };\n };\n}\n\n/**\n * Opacity binder. Only propagates to view layers of the same data.\n */\nexport class OpacityBinder {\n getEventType = function () {\n return 'opacitychange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n // exit if no data id\n if (typeof event.dataid === 'undefined') {\n return;\n }\n // propagate to first view layer\n const viewLayers = layerGroup.getViewLayersByDataId(event.dataid);\n if (viewLayers.length !== 0) {\n viewLayers[0].setOpacity(event.value);\n viewLayers[0].draw();\n }\n };\n };\n}\n\n/**\n * List of binders.\n */\nexport const binderList = {\n WindowLevelBinder,\n PositionBinder,\n ZoomBinder,\n OffsetBinder,\n OpacityBinder,\n ColourMapBinder\n};\n\n/**\n * Stage: controls a list of layer groups and their\n * synchronisation.\n */\nexport class Stage {\n\n /**\n * Associated layer groups.\n *\n * @type {LayerGroup[]}\n */\n #layerGroups = [];\n\n /**\n * Active layer group index.\n *\n * @type {number|undefined}\n */\n #activeLayerGroupIndex;\n\n /**\n * Image smoothing flag.\n *\n * @type {boolean}\n */\n #imageSmoothing = false;\n\n // layer group binders\n #binders = [];\n // binder callbacks\n #callbackStore = null;\n\n /**\n * Get the layer group at the given index.\n *\n * @param {number} index The index.\n * @returns {LayerGroup|undefined} The layer group.\n */\n getLayerGroup(index) {\n return this.#layerGroups[index];\n }\n\n /**\n * Get the number of layer groups that form the stage.\n *\n * @returns {number} The number of layer groups.\n */\n getNumberOfLayerGroups() {\n return this.#layerGroups.length;\n }\n\n /**\n * Get the active layer group.\n *\n * @returns {LayerGroup|undefined} The layer group.\n */\n getActiveLayerGroup() {\n return this.getLayerGroup(this.#activeLayerGroupIndex);\n }\n\n /**\n * Set the active layer group.\n *\n * @param {number} index The layer group index.\n */\n setActiveLayerGroup(index) {\n if (typeof this.getLayerGroup(index) !== 'undefined') {\n this.#activeLayerGroupIndex = index;\n } else {\n logger.warn('No layer group to set as active with index: ' +\n index);\n }\n }\n\n /**\n * Get the view layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {ViewLayer[]} The layers.\n */\n getViewLayersByDataId(dataId) {\n let res = [];\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n res = res.concat(this.#layerGroups[i].getViewLayersByDataId(dataId));\n }\n return res;\n }\n\n /**\n * Get the draw layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {DrawLayer[]} The layers.\n */\n getDrawLayersByDataId(dataId) {\n let res = [];\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n res = res.concat(this.#layerGroups[i].getDrawLayersByDataId(dataId));\n }\n return res;\n }\n\n /**\n * Add a layer group to the list.\n *\n * The new layer group will be marked as the active layer group.\n *\n * @param {object} htmlElement The HTML element of the layer group.\n * @returns {LayerGroup} The newly created layer group.\n */\n addLayerGroup(htmlElement) {\n this.#activeLayerGroupIndex = this.#layerGroups.length;\n const layerGroup = new LayerGroup(htmlElement);\n layerGroup.setImageSmoothing(this.#imageSmoothing);\n // add to storage\n const isBound = this.#callbackStore && this.#callbackStore.length !== 0;\n if (isBound) {\n this.unbindLayerGroups();\n }\n this.#layerGroups.push(layerGroup);\n if (isBound) {\n this.bindLayerGroups();\n }\n // return created group\n return layerGroup;\n }\n\n /**\n * Get a layer group from an HTML element id.\n *\n * @param {string} id The element id to find.\n * @returns {LayerGroup} The layer group.\n */\n getLayerGroupByDivId(id) {\n return this.#layerGroups.find(function (item) {\n return item.getDivId() === id;\n });\n }\n\n /**\n * Set the layer groups binders.\n *\n * @param {Array} list The list of binder objects.\n */\n setBinders(list) {\n if (typeof list === 'undefined' || list === null) {\n throw new Error('Cannot set null or undefined binders');\n }\n if (this.#binders.length !== 0) {\n this.unbindLayerGroups();\n }\n this.#binders = list.slice();\n this.bindLayerGroups();\n }\n\n /**\n * Empty the layer group list.\n */\n empty() {\n this.unbindLayerGroups();\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].empty();\n }\n this.#layerGroups = [];\n this.#activeLayerGroupIndex = undefined;\n }\n\n /**\n * Remove all layers for a specific data.\n *\n * @param {string} dataId The data to remove its layers.\n */\n removeLayersByDataId(dataId) {\n for (const layerGroup of this.#layerGroups) {\n layerGroup.removeLayersByDataId(dataId);\n }\n }\n\n /**\n * Remove a layer group from this stage.\n *\n * @param {LayerGroup} layerGroup The layer group to remove.\n */\n removeLayerGroup(layerGroup) {\n // find layer\n const index = this.#layerGroups.findIndex((item) => item === layerGroup);\n if (index === -1) {\n throw new Error('Cannot find layerGroup to remove');\n }\n // unbind\n this.unbindLayerGroups();\n // empty layer group\n layerGroup.empty();\n // remove from storage\n this.#layerGroups.splice(index, 1);\n // update active index\n if (this.#activeLayerGroupIndex === index) {\n this.#activeLayerGroupIndex = undefined;\n }\n // bind\n this.bindLayerGroups();\n }\n\n /**\n * Reset the stage: calls reset on all layer groups.\n */\n reset() {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].reset();\n }\n }\n\n /**\n * Draw the stage: calls draw on all layer groups.\n */\n draw() {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].draw();\n }\n }\n\n /**\n * Fit to container: synchronise the div to world size ratio\n * of the group layers.\n */\n fitToContainer() {\n // find the minimum ratio\n let minRatio;\n const hasRatio = [];\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n const ratio = this.#layerGroups[i].getDivToWorldSizeRatio();\n if (typeof ratio !== 'undefined') {\n hasRatio.push(i);\n if (typeof minRatio === 'undefined' || ratio < minRatio) {\n minRatio = ratio;\n }\n }\n }\n // exit if no ratio\n if (typeof minRatio === 'undefined') {\n return;\n }\n // apply min ratio to layers\n for (let j = 0; j < this.#layerGroups.length; ++j) {\n if (hasRatio.includes(j)) {\n this.#layerGroups[j].fitToContainer(minRatio);\n }\n }\n }\n\n /**\n * Bind the layer groups of the stage.\n */\n bindLayerGroups() {\n if (this.#layerGroups.length === 0 ||\n this.#layerGroups.length === 1 ||\n this.#binders.length === 0) {\n return;\n }\n // create callback store\n this.#callbackStore = new Array(this.#layerGroups.length);\n // add listeners\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n for (let j = 0; j < this.#binders.length; ++j) {\n this.#addEventListeners(i, this.#binders[j]);\n }\n }\n }\n\n /**\n * Unbind the layer groups of the stage.\n */\n unbindLayerGroups() {\n if (this.#layerGroups.length === 0 ||\n this.#layerGroups.length === 1 ||\n this.#binders.length === 0 ||\n !this.#callbackStore) {\n return;\n }\n // remove listeners\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n for (let j = 0; j < this.#binders.length; ++j) {\n this.#removeEventListeners(i, this.#binders[j]);\n }\n }\n // clear callback store\n this.#callbackStore = null;\n }\n\n /**\n * Set the imageSmoothing flag value.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#imageSmoothing = flag;\n // set for existing layer groups\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].setImageSmoothing(flag);\n }\n }\n\n /**\n * Get the binder callback function for a given layer group index.\n * The function is created if not yet stored.\n *\n * @param {object} binder The layer binder.\n * @param {number} index The index of the associated layer group.\n * @returns {Function} The binder function.\n */\n #getBinderCallback(binder, index) {\n if (typeof this.#callbackStore[index] === 'undefined') {\n this.#callbackStore[index] = [];\n }\n const store = this.#callbackStore[index];\n let binderObj = store.find(function (elem) {\n return elem.binder === binder;\n });\n if (typeof binderObj === 'undefined') {\n // create new callback object\n binderObj = {\n binder: binder,\n callback: (event) => {\n // stop listeners\n this.#removeEventListeners(index, binder);\n // apply binder\n binder.getCallback(this.#layerGroups[index])(event);\n // re-start listeners\n this.#addEventListeners(index, binder);\n }\n };\n this.#callbackStore[index].push(binderObj);\n }\n return binderObj.callback;\n }\n\n /**\n * Add event listeners for a given layer group index and binder.\n *\n * @param {number} index The index of the associated layer group.\n * @param {object} binder The layer binder.\n */\n #addEventListeners(index, binder) {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n if (i !== index) {\n this.#layerGroups[index].addEventListener(\n binder.getEventType(),\n this.#getBinderCallback(binder, i)\n );\n }\n }\n }\n\n /**\n * Remove event listeners for a given layer group index and binder.\n *\n * @param {number} index The index of the associated layer group.\n * @param {object} binder The layer binder.\n */\n #removeEventListeners(index, binder) {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n if (i !== index) {\n this.#layerGroups[index].removeEventListener(\n binder.getEventType(),\n this.#getBinderCallback(binder, i)\n );\n }\n }\n }\n\n} // class Stage\n","import {Index} from '../math/index';\nimport {colourNameToHex} from '../utils/colour';\nimport {WindowLevel} from '../image/windowLevel';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * State class.\n * Saves: data url/path, display info.\n *\n * History:\n * - v0.5 (dwv 0.30.0, 12/2021):\n * - store position as array,\n * - new draw position group key.\n * - v0.4 (dwv 0.29.0, 06/2021):\n * - move drawing details into meta property,\n * - remove scale center and translation, add offset.\n * - v0.3 (dwv v0.23.0, 03/2018):\n * - new drawing structure, drawings are now the full layer object and\n * using toObject to avoid saving a string representation,\n * - new details structure: simple array of objects referenced by draw ids.\n * - v0.2 (dwv v0.17.0, 12/2016):\n * - adds draw details: array [nslices][nframes] of detail objects.\n * - v0.1 (dwv v0.15.0, 07/2016):\n * - adds version,\n * - drawings: array [nslices][nframes] with all groups.\n * - initial release (dwv v0.10.0, 05/2015), no version number:\n * - content: window-center, window-width, position, scale,\n * scaleCenter, translation, drawings,\n * - drawings: array [nslices] with all groups.\n */\nexport class State {\n /**\n * Save the application state as JSON.\n *\n * @param {App} app The associated application.\n * @returns {string} The state as a JSON string.\n */\n toJSON(app) {\n const layerGroup = app.getActiveLayerGroup();\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n const position = viewController.getCurrentIndex();\n const drawLayer = layerGroup.getActiveDrawLayer();\n const drawController = drawLayer.getDrawController();\n const wl = viewController.getWindowLevel();\n // return a JSON string\n return JSON.stringify({\n version: '0.5',\n 'window-center': wl.center,\n 'window-width': wl.width,\n position: position.getValues(),\n scale: app.getAddedScale(),\n offset: app.getOffset(),\n drawings: drawLayer.getKonvaLayer().toObject(),\n drawingsDetails: drawController.getDrawStoreDetails()\n });\n }\n\n /**\n * Load an application state from JSON.\n *\n * @param {string} json The state as a JSON string.\n * @returns {object} The state object.\n */\n fromJSON(json) {\n const data = JSON.parse(json);\n let res = null;\n if (data.version === '0.1') {\n res = this.#readV01(data);\n } else if (data.version === '0.2') {\n res = this.#readV02(data);\n } else if (data.version === '0.3') {\n res = this.#readV03(data);\n } else if (data.version === '0.4') {\n res = this.#readV04(data);\n } else if (data.version === '0.5') {\n res = this.#readV05(data);\n } else {\n throw new Error('Unknown state file format version: \\'' +\n data.version + '\\'.');\n }\n return res;\n }\n\n /**\n * Load an application state from JSON.\n *\n * @param {App} app The app to apply the state to.\n * @param {object} data The state data.\n */\n apply(app, data) {\n const layerGroup = app.getActiveLayerGroup();\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n // display\n const wl = new WindowLevel(data['window-center'], data['window-width']);\n viewController.setWindowLevel(wl);\n // position is index...\n viewController.setCurrentIndex(new Index(data.position));\n // apply saved scale on top of current base one\n const baseScale = app.getActiveLayerGroup().getBaseScale();\n let scale = null;\n let offset = null;\n if (typeof data.scaleCenter !== 'undefined') {\n scale = {\n x: data.scale * baseScale.x,\n y: data.scale * baseScale.y,\n z: 1\n };\n // ---- transform translation (now) ----\n // Tx = -offset.x * scale.x\n // => offset.x = -Tx / scale.x\n // ---- transform translation (before) ----\n // origin.x = centerX - (centerX - origin.x) * (newZoomX / zoom.x);\n // (zoom.x -> initial zoom = base scale, origin.x = 0)\n // Tx = origin.x + (trans.x * zoom.x)\n const originX = data.scaleCenter.x - data.scaleCenter.x * data.scale;\n const originY = data.scaleCenter.y - data.scaleCenter.y * data.scale;\n const oldTx = originX + data.translation.x * scale.x;\n const oldTy = originY + data.translation.y * scale.y;\n offset = {\n x: -oldTx / scale.x,\n y: -oldTy / scale.y,\n z: 0\n };\n } else {\n scale = {\n x: data.scale.x * baseScale.x,\n y: data.scale.y * baseScale.y,\n z: baseScale.z\n };\n offset = {\n x: data.offset.x,\n y: data.offset.y,\n z: 0\n };\n }\n app.getActiveLayerGroup().setScale(scale);\n app.getActiveLayerGroup().setOffset(offset);\n // render to draw the view layer\n app.render(app.getDataIds()[0]); //todo: fix\n // drawings (will draw the draw layer)\n app.setDrawings(data.drawings, data.drawingsDetails);\n }\n\n /**\n * Read an application state from an Object in v0.1 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV01(data) {\n // v0.1 -> v0.2\n const v02DAndD = v01Tov02DrawingsAndDetails(data.drawings);\n // v0.2 -> v0.3, v0.4\n data.drawings = v02Tov03Drawings(v02DAndD.drawings).toObject();\n data.drawingsDetails = v03Tov04DrawingsDetails(\n v02DAndD.drawingsDetails);\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n\n /**\n * Read an application state from an Object in v0.2 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV02(data) {\n // v0.2 -> v0.3, v0.4\n data.drawings = v02Tov03Drawings(data.drawings).toObject();\n data.drawingsDetails = v03Tov04DrawingsDetails(\n v02Tov03DrawingsDetails(data.drawingsDetails));\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n\n /**\n * Read an application state from an Object in v0.3 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV03(data) {\n // v0.3 -> v0.4\n data.drawingsDetails = v03Tov04DrawingsDetails(data.drawingsDetails);\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n\n /**\n * Read an application state from an Object in v0.4 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV04(data) {\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n /**\n * Read an application state from an Object in v0.5 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV05(data) {\n return data;\n }\n\n} // State class\n\n/**\n * Convert drawings from v0.2 to v0.3:\n * - v0.2: one layer per slice/frame,\n * - v0.3: one layer, one group per slice. `setDrawing` expects the full stage.\n *\n * @param {Array} drawings An array of drawings.\n * @returns {object} The layer with the converted drawings.\n */\nfunction v02Tov03Drawings(drawings) {\n // Auxiliar variables\n let group, groupShapes, parentGroup;\n // Avoid errors when dropping multiple states\n //drawLayer.getChildren().each(function(node){\n // node.visible(false);\n //});\n\n /**\n * Get the draw group id for a given position.\n *\n * @param {Index} currentPosition The current position.\n * @returns {string} The group id.\n */\n function getDrawPositionGroupId(currentPosition) {\n const sliceNumber = currentPosition.get(2);\n const frameNumber = currentPosition.length() === 4\n ? currentPosition.get(3) : 0;\n return 'slice-' + sliceNumber + '_frame-' + frameNumber;\n }\n\n const drawLayer = new Konva.Layer({\n listening: false,\n visible: true\n });\n\n // Get the positions-groups data\n const groupDrawings = typeof drawings === 'string'\n ? JSON.parse(drawings) : drawings;\n // Iterate over each position-groups\n for (let k = 0, lenk = groupDrawings.length; k < lenk; ++k) {\n // Iterate over each frame\n for (let f = 0, lenf = groupDrawings[k].length; f < lenf; ++f) {\n groupShapes = groupDrawings[k][f];\n if (groupShapes.length !== 0) {\n // Create position-group set as visible and append it to drawLayer\n parentGroup = new Konva.Group({\n id: getDrawPositionGroupId(new Index([1, 1, k, f])),\n name: 'position-group',\n visible: false\n });\n\n // Iterate over shapes-group\n for (let g = 0, leng = groupShapes.length; g < leng; ++g) {\n // create the konva group\n group = Konva.Node.create(groupShapes[g]);\n // enforce draggable: only the shape was draggable in v0.2,\n // now the whole group is.\n group.draggable(true);\n group.getChildren().forEach(function (gnode) {\n gnode.draggable(false);\n });\n // add to position group\n parentGroup.add(group);\n }\n // add to layer\n drawLayer.add(parentGroup);\n }\n }\n }\n\n return drawLayer;\n}\n\n/**\n * Convert drawings from v0.1 to v0.2:\n * - v0.1: text on its own,\n * - v0.2: text as part of label.\n *\n * @param {Array} inputDrawings An array of drawings.\n * @returns {object} The converted drawings.\n */\nfunction v01Tov02DrawingsAndDetails(inputDrawings) {\n const newDrawings = [];\n const drawingsDetails = {};\n\n let drawGroups;\n let drawGroup;\n // loop over each slice\n for (let k = 0, lenk = inputDrawings.length; k < lenk; ++k) {\n // loop over each frame\n newDrawings[k] = [];\n for (let f = 0, lenf = inputDrawings[k].length; f < lenf; ++f) {\n // draw group\n drawGroups = inputDrawings[k][f];\n const newFrameDrawings = [];\n // Iterate over shapes-group\n for (let g = 0, leng = drawGroups.length; g < leng; ++g) {\n // create konva group from input\n drawGroup = Konva.Node.create(drawGroups[g]);\n // force visible (not set in state)\n drawGroup.visible(true);\n // label position\n let pos = {x: 0, y: 0};\n // update shape colour\n const kshape = drawGroup.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n kshape.stroke(colourNameToHex(kshape.stroke()));\n // special line case\n if (drawGroup.name() === 'line-group') {\n // update name\n drawGroup.name('ruler-group');\n // add ticks\n const ktick0 = new Konva.Line({\n points: [kshape.points()[0],\n kshape.points()[1],\n kshape.points()[0],\n kshape.points()[1]],\n name: 'shape-tick0'\n });\n drawGroup.add(ktick0);\n const ktick1 = new Konva.Line({\n points: [kshape.points()[2],\n kshape.points()[3],\n kshape.points()[2],\n kshape.points()[3]],\n name: 'shape-tick1'\n });\n drawGroup.add(ktick1);\n }\n // special protractor case: update arc name\n const karcs = drawGroup.getChildren(function (node) {\n return node.name() === 'arc';\n });\n if (karcs.length === 1) {\n karcs[0].name('shape-arc');\n }\n // get its text\n const ktexts = drawGroup.getChildren(function (node) {\n return node.name() === 'text';\n });\n // update text: move it into a label\n let ktext = new Konva.Text({\n name: 'text',\n text: ''\n });\n if (ktexts.length === 1) {\n pos.x = ktexts[0].x();\n pos.y = ktexts[0].y();\n // remove it from the group\n ktexts[0].remove();\n // use it\n ktext = ktexts[0];\n } else {\n // use shape position if no text\n if (kshape.points().length !== 0) {\n pos = {x: kshape.points()[0],\n y: kshape.points()[1]};\n }\n }\n // create new label with text and tag\n const klabel = new Konva.Label({\n x: pos.x,\n y: pos.y,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag());\n // add label to group\n drawGroup.add(klabel);\n // add group to list\n newFrameDrawings.push(JSON.stringify(drawGroup.toObject()));\n\n // create details (v0.3 format)\n let textExpr = ktext.text();\n const txtLen = textExpr.length;\n let quant = null;\n // adapt to text with flag\n if (drawGroup.name() === 'ruler-group') {\n quant = {\n length: {\n value: parseFloat(textExpr.substring(0, txtLen - 2)),\n unit: textExpr.substring(-2)\n }\n };\n textExpr = '{length}';\n } else if (drawGroup.name() === 'ellipse-group' ||\n drawGroup.name() === 'rectangle-group') {\n quant = {\n surface: {\n value: parseFloat(textExpr.substring(0, txtLen - 3)),\n unit: textExpr.substring(-3)\n }\n };\n textExpr = '{surface}';\n } else if (drawGroup.name() === 'protractor-group' ||\n drawGroup.name() === 'rectangle-group') {\n quant = {\n angle: {\n value: parseFloat(textExpr.substring(0, txtLen - 1)),\n unit: textExpr.substring(-1)\n }\n };\n textExpr = '{angle}';\n }\n // set details\n drawingsDetails[drawGroup.id()] = {\n textExpr: textExpr,\n longText: '',\n quant: quant\n };\n\n }\n newDrawings[k].push(newFrameDrawings);\n }\n }\n\n return {drawings: newDrawings, drawingsDetails: drawingsDetails};\n}\n\n/**\n * Convert drawing details from v0.2 to v0.3:\n * - v0.2: array [nslices][nframes] with all,\n * - v0.3: simple array of objects referenced by draw ids.\n *\n * @param {Array} details An array of drawing details.\n * @returns {object} The converted drawings.\n */\nfunction v02Tov03DrawingsDetails(details) {\n const res = {};\n // Get the positions-groups data\n const groupDetails = typeof details === 'string'\n ? JSON.parse(details) : details;\n // Iterate over each position-groups\n for (let k = 0, lenk = groupDetails.length; k < lenk; ++k) {\n // Iterate over each frame\n for (let f = 0, lenf = groupDetails[k].length; f < lenf; ++f) {\n // Iterate over shapes-group\n for (let g = 0, leng = groupDetails[k][f].length; g < leng; ++g) {\n const group = groupDetails[k][f][g];\n res[group.id] = {\n textExpr: group.textExpr,\n longText: group.longText,\n quant: group.quant\n };\n }\n }\n }\n return res;\n}\n\n/**\n * Convert drawing details from v0.3 to v0.4:\n * - v0.3: properties at group root,\n * - v0.4: properties in group meta object.\n *\n * @param {Array} details An array of drawing details.\n * @returns {object} The converted drawings.\n */\nfunction v03Tov04DrawingsDetails(details) {\n const res = {};\n const keys = Object.keys(details);\n // Iterate over each position-groups\n for (let k = 0, lenk = keys.length; k < lenk; ++k) {\n const detail = details[keys[k]];\n res[keys[k]] = {\n meta: {\n textExpr: detail.textExpr,\n longText: detail.longText,\n quantification: detail.quant\n }\n };\n }\n return res;\n}\n\n/**\n * Convert drawing from v0.4 to v0.5:\n * - v0.4: position as object,\n * - v0.5: position as array.\n *\n * @param {object} data An array of drawing.\n * @returns {object} The converted drawings.\n */\nfunction v04Tov05Data(data) {\n const pos = data.position;\n data.position = [pos.i, pos.j, pos.k];\n return data;\n}\n\n/**\n * Convert drawing from v0.4 to v0.5:\n * - v0.4: draw id as 'slice-0_frame-1',\n * - v0.5: draw id as '#2-0_#3-1'.\n *\n * @param {object} inputDrawings An array of drawing.\n * @returns {object} The converted drawings.\n */\nfunction v04Tov05Drawings(inputDrawings) {\n // Iterate over each position-groups\n const posGroups = inputDrawings.children;\n for (let k = 0, lenk = posGroups.length; k < lenk; ++k) {\n const posGroup = posGroups[k];\n const id = posGroup.attrs.id;\n const ids = id.split('_');\n const sliceNumber = parseInt(ids[0].substring(6), 10); // 'slice-0'\n const frameNumber = parseInt(ids[1].substring(6), 10); // 'frame-0'\n let newId = '#2-';\n if (sliceNumber === 0 && frameNumber !== 0) {\n newId += frameNumber;\n } else {\n newId += sliceNumber;\n }\n posGroup.attrs.id = newId;\n }\n return inputDrawings;\n}\n","import {logger} from './logger';\nimport {splitKeyValueString} from './string';\n\n/**\n * Get an full object URL from a string uri.\n *\n * @param {string} uri A string representing the url.\n * @returns {URL} A URL object.\n */\nexport function getUrlFromUri(uri) {\n // add base to allow for relative urls\n // (base is not used for absolute urls)\n return new URL(uri, window.location.origin);\n}\n\n/**\n * Split an input URI:\n * 'root?key0=val00&key0=val01&key1=val10' returns\n * { base : root, query : [ key0 : [val00, val01], key1 : val1 ] }\n * Returns an empty object if the input string is not correct (null, empty...)\n * or if it is not a query string (no question mark).\n *\n * @param {string} uri The string to split.\n * @returns {object} The split string.\n */\nexport function splitUri(uri) {\n // result\n const result = {};\n // check if query string\n let sepIndex = null;\n if (uri && (sepIndex = uri.indexOf('?')) !== -1) {\n // base: before the '?'\n result.base = uri.substring(0, sepIndex);\n // query : after the '?' and until possible '#'\n let hashIndex = uri.indexOf('#');\n if (hashIndex === -1) {\n hashIndex = uri.length;\n }\n const query = uri.substring(sepIndex + 1, hashIndex);\n // split key/value pairs of the query\n result.query = splitKeyValueString(query);\n }\n // return\n return result;\n}\n\n/**\n * Get the query part, split into an array, of an input URI.\n * The URI scheme is: `base?query#fragment`.\n *\n * @param {string} uri The input URI.\n * @returns {object} The query part, split into an array, of the input URI.\n */\nexport function getUriQuery(uri) {\n // split\n const parts = splitUri(uri);\n // check not empty\n if (Object.keys(parts).length === 0) {\n return null;\n }\n // return query\n return parts.query;\n}\n\n/**\n * Generic URI query decoder.\n * Supports manifest:\n * `[dwv root]?input=encodeURIComponent('[manifest file]')&type=manifest`.\n * Or encoded URI with base and key value/pairs:\n * `[dwv root]?input=encodeURIComponent([root]?key0=value0&key1=value1)`.\n *\n * @param {object} query The query part to the input URI.\n * @param {Function} callback The function to call with the decoded file urls.\n * @param {object} options Optional url request options.\n */\nexport function decodeQuery(query, callback, options) {\n // manifest\n if (query.type && query.type === 'manifest') {\n decodeManifestQuery(query, callback);\n } else {\n // default case: encoded URI with base and key/value pairs\n callback(\n decodeKeyValueUri(query.input, query.dwvReplaceMode),\n options);\n }\n}\n\n/**\n * Decode a Key/Value pair URI. If a key is repeated, the result\n * be an array of base + each key.\n *\n * @param {string} uri The URI to decode.\n * @param {string} replaceMode The key replace mode. Can be:\n * - key (default): keep the key\n * - other than key: do not use the key\n * 'file' is a special case where the '?' of the query is not kept.\n * @returns {string[]} The list of input file urls.\n */\nexport function decodeKeyValueUri(uri, replaceMode) {\n const result = [];\n\n // repeat key replace mode (default to keep key)\n let repeatKeyReplaceMode = 'key';\n if (replaceMode) {\n repeatKeyReplaceMode = replaceMode;\n }\n\n // decode input URI\n const queryUri = decodeURIComponent(uri);\n // get key/value pairs from input URI\n const inputQueryPairs = splitUri(queryUri);\n if (Object.keys(inputQueryPairs).length === 0) {\n result.push(queryUri);\n } else {\n const keys = Object.keys(inputQueryPairs.query);\n // find repeat key\n let repeatKey = null;\n for (let i = 0; i < keys.length; ++i) {\n if (inputQueryPairs.query[keys[i]] instanceof Array) {\n repeatKey = keys[i];\n break;\n }\n }\n\n if (!repeatKey) {\n result.push(queryUri);\n } else {\n const repeatList = inputQueryPairs.query[repeatKey];\n // build base uri\n let baseUrl = inputQueryPairs.base;\n // add '?' when:\n // - base is not empty\n // - the repeatKey is not 'file'\n // root/path/to/?file=0.jpg&file=1.jpg\n if (baseUrl !== '' && repeatKey !== 'file') {\n baseUrl += '?';\n }\n let gotOneArg = false;\n for (let j = 0; j < keys.length; ++j) {\n if (keys[j] !== repeatKey) {\n if (gotOneArg) {\n baseUrl += '&';\n }\n baseUrl += keys[j] + '=' + inputQueryPairs.query[keys[j]];\n gotOneArg = true;\n }\n }\n // append built urls to result\n let url;\n for (let k = 0; k < repeatList.length; ++k) {\n url = baseUrl;\n if (gotOneArg) {\n url += '&';\n }\n if (repeatKeyReplaceMode === 'key') {\n url += repeatKey + '=';\n }\n // other than 'key' mode: do nothing\n url += repeatList[k];\n result.push(url);\n }\n }\n }\n // return\n return result;\n}\n\n/**\n * Decode a manifest query.\n *\n * @external XMLHttpRequest\n * @param {object} query The manifest query: {input, nslices},\n * with input the input URI and nslices the number of slices.\n * @param {Function} callback The function to call with the decoded urls.\n */\nfunction decodeManifestQuery(query, callback) {\n let uri = '';\n if (query.input[0] === '/') {\n uri = window.location.protocol + '//' + window.location.host;\n }\n // TODO: needs to be decoded (decodeURIComponent?\n uri += query.input;\n\n /**\n * Handle error.\n *\n * @param {object} event The error event.\n */\n function onError(event) {\n logger.warn('RequestError while receiving manifest: ' +\n event.target.status);\n }\n\n /**\n * Handle load.\n *\n * @param {object} event The load event.\n */\n function onLoad(event) {\n callback(decodeManifest(event.target.responseXML, query.nslices));\n }\n\n const request = new XMLHttpRequest();\n request.open('GET', decodeURIComponent(uri), true);\n request.responseType = 'document';\n request.onload = onLoad;\n request.onerror = onError;\n request.send(null);\n}\n\n/**\n * Decode an XML manifest.\n *\n * @param {object} manifest The manifest to decode.\n * @param {number} nslices The number of slices to load.\n * @returns {string[]} The decoded manifest.\n */\nexport function decodeManifest(manifest, nslices) {\n const result = [];\n // wado url\n const wadoElement = manifest.getElementsByTagName('wado_query');\n const wadoURL = wadoElement[0].getAttribute('wadoURL');\n const rootURL = wadoURL + '?requestType=WADO&contentType=application/dicom&';\n // patient list\n const patientList = manifest.getElementsByTagName('Patient');\n if (patientList.length > 1) {\n logger.warn('More than one patient, loading first one.');\n }\n // study list\n const studyList = patientList[0].getElementsByTagName('Study');\n if (studyList.length > 1) {\n logger.warn('More than one study, loading first one.');\n }\n const studyUID = studyList[0].getAttribute('StudyInstanceUID');\n // series list\n const seriesList = studyList[0].getElementsByTagName('Series');\n if (seriesList.length > 1) {\n logger.warn('More than one series, loading first one.');\n }\n const seriesUID = seriesList[0].getAttribute('SeriesInstanceUID');\n // instance list\n const instanceList = seriesList[0].getElementsByTagName('Instance');\n // loop on instances and push links\n let max = instanceList.length;\n if (nslices < max) {\n max = nslices;\n }\n for (let i = 0; i < max; ++i) {\n const sopInstanceUID = instanceList[i].getAttribute('SOPInstanceUID');\n const link = rootURL +\n '&studyUID=' + studyUID +\n '&seriesUID=' + seriesUID +\n '&objectUID=' + sopInstanceUID;\n result.push(link);\n }\n // return\n return result;\n}\n","import {ListenerHandler} from '../utils/listen';\n\n/**\n * UndoStack class.\n */\nexport class UndoStack {\n /**\n * Array of commands.\n *\n * @type {Array}\n */\n #stack = [];\n\n /**\n * Current command index.\n *\n * @type {number}\n */\n #curCmdIndex = 0;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get the stack size.\n *\n * @returns {number} The size of the stack.\n */\n getStackSize() {\n return this.#stack.length;\n }\n\n /**\n * Get the current stack index.\n *\n * @returns {number} The stack index.\n */\n getCurrentStackIndex() {\n return this.#curCmdIndex;\n }\n\n /**\n * Add a command to the stack.\n *\n * @param {object} cmd The command to add.\n * @fires UndoStack#undoadd\n */\n add(cmd) {\n // clear commands after current index\n this.#stack = this.#stack.slice(0, this.#curCmdIndex);\n // store command\n this.#stack.push(cmd);\n // increment index\n ++this.#curCmdIndex;\n /**\n * Command add to undo stack event.\n *\n * @event UndoStack#undoadd\n * @type {object}\n * @property {string} command The name of the command added to the\n * undo stack.\n */\n this.#fireEvent({\n type: 'undoadd',\n command: cmd.getName()\n });\n }\n\n /**\n * Undo the last command.\n *\n * @fires UndoStack#undo\n */\n undo() {\n // a bit inefficient...\n if (this.#curCmdIndex > 0) {\n // decrement command index\n --this.#curCmdIndex;\n // undo last command\n this.#stack[this.#curCmdIndex].undo();\n /**\n * Command undo event.\n *\n * @event UndoStack#undo\n * @type {object}\n * @property {string} command The name of the undone command.\n */\n this.#fireEvent({\n type: 'undo',\n command: this.#stack[this.#curCmdIndex].getName()\n });\n }\n }\n\n /**\n * Redo the last command.\n *\n * @fires UndoStack#redo\n */\n redo() {\n if (this.#curCmdIndex < this.#stack.length) {\n // run last command\n this.#stack[this.#curCmdIndex].execute();\n /**\n * Command redo event.\n *\n * @event UndoStack#redo\n * @type {object}\n * @property {string} command The name of the redone command.\n */\n this.#fireEvent({\n type: 'redo',\n command: this.#stack[this.#curCmdIndex].getName()\n });\n // increment command index\n ++this.#curCmdIndex;\n }\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // UndoStack class\n","import {InteractionEventNames} from '../gui/generic';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {LayerGroup} from '../gui/layerGroup';\nimport {ViewLayer} from '../gui/viewLayer';\nimport {DrawLayer} from '../gui/drawLayer';\n/* eslint-enable no-unused-vars */\n\n/**\n * Toolbox controller.\n */\nexport class ToolboxController {\n\n /**\n * List of tools to control.\n *\n * @type {object}\n */\n #toolList;\n\n /**\n * Selected tool.\n *\n * @type {object}\n */\n #selectedTool = null;\n\n /**\n * Callback store to allow attach/detach.\n *\n * @type {Array}\n */\n #callbackStore = [];\n\n /**\n * Current layers bound to tool.\n *\n * @type {object}\n */\n #boundLayers = {};\n\n /**\n * @param {object} toolList The list of tool objects.\n */\n constructor(toolList) {\n this.#toolList = toolList;\n }\n\n /**\n * Initialise.\n */\n init() {\n for (const key in this.#toolList) {\n this.#toolList[key].init();\n }\n // enable shortcuts\n this.enableShortcuts(true);\n }\n\n /**\n * Enable or disable shortcuts. The 'init' methods enables shortcuts\n * by default. Call this method after init to disable shortcuts.\n *\n * @param {boolean} flag True to enable shortcuts.\n */\n enableShortcuts(flag) {\n if (flag) {\n window.addEventListener('keydown',\n this.#getCallback('window', 'keydown'), true);\n } else {\n window.removeEventListener('keydown',\n this.#getCallback('window', 'keydown'), true);\n }\n }\n\n /**\n * Get the tool list.\n *\n * @returns {Array} The list of tool objects.\n */\n getToolList() {\n return this.#toolList;\n }\n\n /**\n * Check if a tool is in the tool list.\n *\n * @param {string} name The name to check.\n * @returns {boolean} The tool list element for the given name.\n */\n hasTool(name) {\n return typeof this.getToolList()[name] !== 'undefined';\n }\n\n /**\n * Get the selected tool.\n *\n * @returns {object} The selected tool.\n */\n getSelectedTool() {\n return this.#selectedTool;\n }\n\n /**\n * Get the selected tool event handler.\n *\n * @param {string} eventType The event type, for example\n * mousedown, touchstart...\n * @returns {Function} The event handler.\n */\n getSelectedToolEventHandler(eventType) {\n return this.getSelectedTool()[eventType];\n }\n\n /**\n * Set the selected tool.\n *\n * @param {string} name The name of the tool.\n */\n setSelectedTool(name) {\n // check if we have it\n if (!this.hasTool(name)) {\n throw new Error('Unknown tool: \\'' + name + '\\'');\n }\n // de-activate previous\n if (this.#selectedTool) {\n this.#selectedTool.activate(false);\n }\n // set internal var\n this.#selectedTool = this.#toolList[name];\n // activate new tool\n this.#selectedTool.activate(true);\n }\n\n /**\n * Set the selected tool live features.\n *\n * @param {object} list The list of features.\n */\n setToolFeatures(list) {\n if (this.getSelectedTool()) {\n this.getSelectedTool().setFeatures(list);\n }\n }\n\n /**\n * Listen to layer interaction events.\n *\n * @param {LayerGroup} layerGroup The associated layer group.\n * @param {ViewLayer|DrawLayer} layer The layer to listen to.\n */\n bindLayerGroup(layerGroup, layer) {\n const divId = layerGroup.getDivId();\n // listen to active layer changes\n layerGroup.addEventListener(\n 'activelayerchange', this.#getActiveLayerChangeHandler(divId));\n // bind the layer\n this.#internalBindLayerGroup(divId, layer);\n }\n\n /**\n * Bind a layer group to this controller.\n *\n * @param {string} layerGroupDivId The layer group div id.\n * @param {ViewLayer|DrawLayer} layer The layer.\n */\n #internalBindLayerGroup(layerGroupDivId, layer) {\n // remove from local list if preset\n if (typeof this.#boundLayers[layerGroupDivId] !== 'undefined') {\n this.#unbindLayer(this.#boundLayers[layerGroupDivId]);\n }\n // replace layer in local list\n this.#boundLayers[layerGroupDivId] = layer;\n // bind layer\n this.#bindLayer(layer);\n }\n\n /**\n * Get an active layer change handler.\n *\n * @param {string} divId The associated layer group div id.\n * @returns {Function} The event handler.\n */\n #getActiveLayerChangeHandler(divId) {\n return (event) => {\n const layer = event.value[0];\n this.#internalBindLayerGroup(divId, layer);\n };\n }\n\n /**\n * Add canvas mouse and touch listeners to a layer.\n *\n * @param {ViewLayer|DrawLayer} layer The layer to start listening to.\n */\n #bindLayer(layer) {\n layer.bindInteraction();\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n layer.addEventListener(names[i],\n this.#getCallback(layer.getId(), names[i]));\n }\n }\n\n /**\n * Remove canvas mouse and touch listeners to a layer.\n *\n * @param {ViewLayer|DrawLayer} layer The layer to stop listening to.\n */\n #unbindLayer(layer) {\n layer.unbindInteraction();\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n layer.removeEventListener(names[i],\n this.#getCallback(layer.getId(), names[i]));\n }\n }\n\n /**\n * Mou(se) and (T)ouch event handler. This function just determines\n * the mouse/touch position relative to the canvas element.\n * It then passes it to the current tool.\n *\n * @param {string} layerId The layer id.\n * @param {string} eventType The event type.\n * @returns {object} A callback for the provided layer and event.\n */\n #getCallback(layerId, eventType) {\n if (typeof this.#callbackStore[layerId] === 'undefined') {\n this.#callbackStore[layerId] = [];\n }\n\n if (typeof this.#callbackStore[layerId][eventType] === 'undefined') {\n const applySelectedTool = (event) => {\n // make sure we have a tool\n if (this.#selectedTool) {\n const func = this.#selectedTool[event.type];\n if (func) {\n func(event);\n }\n }\n };\n // store callback\n this.#callbackStore[layerId][eventType] = applySelectedTool;\n }\n\n return this.#callbackStore[layerId][eventType];\n }\n\n} // class ToolboxController\n","/**\n * Multiple progresses handler.\n * Stores a multi dimensional list of progresses to allow to\n * calculate a global progress.\n *\n */\nexport class MultiProgressHandler {\n\n /**\n * List of progresses.\n * First dimension is a list of item for which the progress is recorded,\n * for example file names.\n * Second dimension is a list of possible progresses, for example\n * the progress of the download and the progress of the decoding.\n *\n * @type {Array}\n */\n #progresses = [];\n\n /**\n * Number of dimensions.\n *\n * @type {number}\n */\n #numberOfDimensions = 2;\n\n /**\n * Progress callback.\n *\n * @type {Function}\n */\n #callback;\n\n /**\n * @param {Function} callback The function to pass the global progress to.\n */\n constructor(callback) {\n this.#callback = callback;\n }\n\n /**\n * Set the number of dimensions.\n *\n * @param {number} num The number.\n */\n setNumberOfDimensions(num) {\n this.#numberOfDimensions = num;\n }\n\n /**\n * Set the number of data to load.\n *\n * @param {number} n The number of data to load.\n */\n setNToLoad(n) {\n for (let i = 0; i < n; ++i) {\n this.#progresses[i] = [];\n for (let j = 0; j < this.#numberOfDimensions; ++j) {\n this.#progresses[i][j] = 0;\n }\n }\n }\n\n /**\n * Handle a load progress.\n * Call the member callback with a global event.\n *\n * @param {object} event The progress event.\n */\n onprogress = (event) => {\n // check event\n if (!event.lengthComputable) {\n return;\n }\n if (typeof event.subindex === 'undefined') {\n return;\n }\n if (typeof event.index === 'undefined') {\n return;\n }\n // calculate percent\n const percent = (event.loaded * 100) / event.total;\n // set percent for index\n this.#progresses[event.index][event.subindex] = percent;\n\n // item progress\n let item = null;\n if (typeof event.item !== 'undefined') {\n item = event.item;\n } else {\n item = {\n loaded: this.#getItemProgress(event.index),\n total: 100,\n source: event.source\n };\n }\n\n // call callback with a global event\n this.#callback({\n lengthComputable: true,\n loaded: this.#getGlobalPercent(),\n total: 100,\n item: item\n });\n };\n\n /**\n * Get the item load percent.\n *\n * @param {number} index The index of the item.\n * @returns {number} The load percentage.\n */\n #getItemProgress(index) {\n let sum = 0;\n for (let j = 0; j < this.#numberOfDimensions; ++j) {\n sum += this.#progresses[index][j];\n }\n return sum / this.#numberOfDimensions;\n }\n\n /**\n * Get the global load percent including the provided one.\n *\n * @returns {number} The accumulated percentage.\n */\n #getGlobalPercent() {\n let sum = 0;\n const lenprog = this.#progresses.length;\n for (let i = 0; i < lenprog; ++i) {\n sum += this.#getItemProgress(i);\n }\n return Math.round(sum / lenprog);\n }\n\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Create a mono progress event handler.\n *\n * @param {number} index The index of the data.\n * @param {number} subindex The sub-index of the data.\n * @returns {eventFn} A progress handler function.\n */\n getMonoProgressHandler(index, subindex) {\n return (event) => {\n event.index = index;\n event.subindex = subindex;\n this.onprogress(event);\n };\n }\n\n /**\n * Create a mono progress event handler with an undefined index.\n * Warning: The caller handles the progress index.\n *\n * @param {number} subindex The sub-index of the data.\n * @returns {eventFn} A progress handler function.\n */\n getUndefinedMonoProgressHandler(subindex) {\n return (event) => {\n event.subindex = subindex;\n this.onprogress(event);\n };\n }\n}\n","import {endsWith, getRootPath} from '../utils/string';\nimport {MultiProgressHandler} from '../utils/progress';\nimport {getFileListFromDicomDir} from '../dicom/dicomElementsWrapper';\nimport {loaderList} from './loaderList';\n\n// url content types\nexport const urlContentTypes = {\n Text: 0,\n ArrayBuffer: 1\n};\n\n/**\n * Urls loader.\n */\nexport class UrlsLoader {\n\n /**\n * Input data.\n *\n * @type {string[]}\n */\n #inputData = null;\n\n /**\n * Array of launched requests.\n *\n * @type {XMLHttpRequest[]}\n */\n #requests = [];\n\n /**\n * Data loader.\n *\n * @type {object}\n */\n #runningLoader = null;\n\n /**\n * Number of loaded data.\n *\n * @type {number}\n */\n #nLoad = 0;\n\n /**\n * Number of load end events.\n *\n * @type {number}\n */\n #nLoadend = 0;\n\n /**\n * Flag to know if the load is aborting.\n *\n * @type {boolean}\n */\n #aborting;\n\n /**\n * The default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Store the current input.\n *\n * @param {string[]} data The input data.\n */\n #storeInputData(data) {\n this.#inputData = data;\n // reset counters\n this.#nLoad = 0;\n this.#nLoadend = 0;\n // reset flag\n this.#aborting = false;\n // clear storage\n this.#clearStoredRequests();\n this.#clearStoredLoader();\n }\n\n /**\n * Store a launched request.\n *\n * @param {XMLHttpRequest} request The launched request.\n */\n #storeRequest(request) {\n this.#requests.push(request);\n }\n\n /**\n * Clear the stored requests.\n *\n */\n #clearStoredRequests() {\n this.#requests = [];\n }\n\n /**\n * Store the launched loader.\n *\n * @param {object} loader The launched loader.\n */\n #storeLoader(loader) {\n this.#runningLoader = loader;\n }\n\n /**\n * Clear the stored loader.\n *\n */\n #clearStoredLoader() {\n this.#runningLoader = null;\n }\n\n /**\n * Increment the number of loaded data\n * and call onload if loaded all data.\n *\n * @param {object} _event The load data event.\n */\n #addLoad = (_event) => {\n this.#nLoad++;\n // call onload when all is loaded\n // (not using the input event since it is\n // an individual load)\n if (this.#nLoad === this.#inputData.length) {\n this.onload({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Increment the counter of load end events\n * and run callbacks when all done, erroneus or not.\n *\n * @param {object} _event The load end event.\n */\n #addLoadend = (_event) => {\n this.#nLoadend++;\n // call onloadend when all is run\n // (not using the input event since it is\n // an individual load end)\n if (this.#nLoadend === this.#inputData.length) {\n this.onloadend({\n source: this.#inputData\n });\n }\n };\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Augment a callback event with a srouce.\n *\n * @param {object} callback The callback to augment its event.\n * @param {object} source The source to add to the event.\n * @returns {eventFn} The augmented callback.\n */\n #augmentCallbackEvent(callback, source) {\n return (event) => {\n event.source = source;\n callback(event);\n };\n }\n\n /**\n * Load a list of URLs or a DICOMDIR.\n *\n * @param {string[]} data The list of urls to load.\n * @param {object} [options] Load options.\n */\n load(data, options) {\n // send start event\n this.onloadstart({\n source: data\n });\n\n // check if DICOMDIR case\n if (data.length === 1 &&\n (endsWith(data[0], 'DICOMDIR') ||\n endsWith(data[0], '.dcmdir'))) {\n this.#loadDicomDir(data[0], options);\n } else {\n this.#loadUrls(data, options);\n }\n }\n\n /**\n * Get a load handler for a data element.\n *\n * @param {object} loader The associated loader.\n * @param {string} dataElement The data element.\n * @param {number} i The index of the element.\n * @returns {eventFn} A load handler.\n */\n #getLoadHandler(loader, dataElement, i) {\n return (event) => {\n // check response status\n // https://developer.mozilla.org/en-US/docs/Web/HTTP/Response_codes\n // status 200: \"OK\"; status 0: \"debug\"\n const status = event.target.status;\n if (status !== 200 && status !== 0) {\n this.onerror({\n source: dataElement,\n error: 'GET ' + event.target.responseURL +\n ' ' + event.target.status +\n ' (' + event.target.statusText + ')',\n target: event.target\n });\n this.#addLoadend();\n } else {\n loader.load(event.target.response, dataElement, i);\n }\n };\n }\n\n /**\n * Load a list of urls.\n *\n * @param {string[]} data The list of urls to load.\n * @param {object} [options] The options object, can contain:\n * - requestHeaders: an array of {name, value} to use as request headers,\n * - withCredentials: boolean xhr.withCredentials flag to pass\n * to the request,\n * - batchSize: the size of the request url batch.\n */\n #loadUrls(data, options) {\n // check input\n if (typeof data === 'undefined' || data.length === 0) {\n return;\n }\n this.#storeInputData(data);\n\n // create prgress handler\n const mproghandler = new MultiProgressHandler(this.onprogress);\n mproghandler.setNToLoad(data.length);\n\n // create loaders\n const loaders = [];\n for (let m = 0; m < loaderList.length; ++m) {\n loaders.push(new loaderList[m]());\n }\n\n // find an appropriate loader\n let dataElement = data[0];\n let loader = null;\n let foundLoader = false;\n for (let l = 0; l < loaders.length; ++l) {\n loader = loaders[l];\n if (loader.canLoadUrl(dataElement, options)) {\n foundLoader = true;\n // load options\n loader.setOptions({\n numberOfFiles: data.length,\n defaultCharacterSet: this.getDefaultCharacterSet()\n });\n // set loader callbacks\n // loader.onloadstart: nothing to do\n loader.onprogress = mproghandler.getUndefinedMonoProgressHandler(1);\n loader.onloaditem = this.onloaditem;\n loader.onload = this.#addLoad;\n loader.onloadend = this.#addLoadend;\n loader.onerror = this.onerror;\n loader.onabort = this.onabort;\n\n // store loader\n this.#storeLoader(loader);\n // exit\n break;\n }\n }\n if (!foundLoader) {\n throw new Error('No loader found for url: ' + dataElement);\n }\n\n // store last run request index\n let lastRunRequestIndex = 0;\n const requestOnLoadEnd = () => {\n // launch next in queue\n if (lastRunRequestIndex < this.#requests.length - 1 && !this.#aborting) {\n ++lastRunRequestIndex;\n this.#requests[lastRunRequestIndex].send(null);\n }\n };\n\n // loop on I/O elements\n for (let i = 0; i < data.length; ++i) {\n dataElement = data[i];\n\n // check loader\n if (!loader.canLoadUrl(dataElement, options)) {\n throw new Error('Input url of different type: ' + dataElement);\n }\n /**\n * The http request.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest}.\n *\n * @external XMLHttpRequest\n */\n const request = new XMLHttpRequest();\n request.open('GET', dataElement, true);\n\n // request options\n if (typeof options !== 'undefined') {\n // optional request headers\n if (typeof options.requestHeaders !== 'undefined') {\n const requestHeaders = options.requestHeaders;\n for (let j = 0; j < requestHeaders.length; ++j) {\n if (typeof requestHeaders[j].name !== 'undefined' &&\n typeof requestHeaders[j].value !== 'undefined') {\n request.setRequestHeader(\n requestHeaders[j].name, requestHeaders[j].value);\n }\n }\n }\n // optional withCredentials\n // https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/withCredentials\n if (typeof options.withCredentials !== 'undefined') {\n request.withCredentials = options.withCredentials;\n }\n }\n\n // set request callbacks\n // request.onloadstart: nothing to do\n request.onprogress = this.#augmentCallbackEvent(\n mproghandler.getMonoProgressHandler(i, 0), dataElement);\n request.onload = this.#getLoadHandler(loader, dataElement, i);\n request.onloadend = requestOnLoadEnd;\n const errorCallback =\n this.#augmentCallbackEvent(this.onerror, dataElement);\n request.onerror = (event) => {\n this.#addLoadend();\n errorCallback(event);\n };\n const abortCallback =\n this.#augmentCallbackEvent(this.onabort, dataElement);\n request.onabort = (event) => {\n this.#addLoadend();\n abortCallback(event);\n };\n // response type (default is 'text')\n if (loader.loadUrlAs() === urlContentTypes.ArrayBuffer) {\n request.responseType = 'arraybuffer';\n }\n\n // store request\n this.#storeRequest(request);\n }\n\n // launch requests in batch\n let batchSize = this.#requests.length;\n if (typeof options !== 'undefined') {\n // optional request batch size\n if (typeof options.batchSize !== 'undefined' && batchSize !== 0) {\n batchSize = Math.min(options.batchSize, this.#requests.length);\n }\n }\n for (let r = 0; r < batchSize; ++r) {\n if (!this.#aborting) {\n lastRunRequestIndex = r;\n this.#requests[lastRunRequestIndex].send(null);\n }\n }\n }\n\n /**\n * Load a DICOMDIR.\n *\n * @param {string} dicomDirUrl The DICOMDIR url.\n * @param {object} [options] Load options.\n */\n #loadDicomDir(dicomDirUrl, options) {\n // read DICOMDIR\n const request = new XMLHttpRequest();\n request.open('GET', dicomDirUrl, true);\n request.responseType = 'arraybuffer';\n // request.onloadstart: nothing to do\n /**\n * @param {object} event The load event.\n */\n request.onload = (event) => {\n // check status\n const status = event.target.status;\n if (status !== 200 && status !== 0) {\n this.onerror({\n source: dicomDirUrl,\n error: 'GET ' + event.target.responseURL +\n ' ' + event.target.status +\n ' (' + event.target.statusText + ')',\n target: event.target\n });\n this.onloadend({});\n } else {\n // get the file list\n const list = getFileListFromDicomDir(event.target.response);\n // use the first list\n const urls = list[0][0];\n // append root url\n const rootUrl = getRootPath(dicomDirUrl);\n const fullUrls = [];\n for (let i = 0; i < urls.length; ++i) {\n fullUrls.push(rootUrl + '/' + urls[i]);\n }\n // load urls\n this.#loadUrls(fullUrls, options);\n }\n };\n request.onerror = (event) => {\n this.#augmentCallbackEvent(this.onerror, dicomDirUrl)(event);\n this.onloadend({});\n };\n request.onabort = (event) => {\n this.#augmentCallbackEvent(this.onabort, dicomDirUrl)(event);\n this.onloadend({});\n };\n // request.onloadend: nothing to do\n // send request\n request.send(null);\n }\n\n /**\n * Abort a load.\n */\n abort() {\n this.#aborting = true;\n // abort non finished requests\n for (let i = 0; i < this.#requests.length; ++i) {\n // 0: UNSENT, 1: OPENED, 2: HEADERS_RECEIVED (send()), 3: LOADING, 4: DONE\n if (this.#requests[i].readyState !== 4) {\n this.#requests[i].abort();\n }\n }\n // abort loader\n if (this.#runningLoader && this.#runningLoader.isLoading()) {\n this.#runningLoader.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class UrlsLoader\n","/**\n * Thread Pool.\n *\n * Highly inspired from {@link http://www.smartjava.org/content/html5-easily-parallelize-jobs-using-web-workers-and-threadpool}.\n */\nexport class ThreadPool {\n\n /**\n * @param {number} poolSize The size of the pool.\n */\n constructor(poolSize) {\n this.poolSize = poolSize;\n // task queue\n this.taskQueue = [];\n // lsit of available threads\n this.freeThreads = [];\n // create 'poolSize' number of worker threads\n for (let i = 0; i < poolSize; ++i) {\n this.freeThreads.push(new WorkerThread(this));\n }\n // list of running threads (unsed in abort)\n this.runningThreads = [];\n }\n\n /**\n * Add a worker task to the queue.\n * Will be run when a thread is made available.\n *\n * @param {object} workerTask The task to add to the queue.\n */\n addWorkerTask(workerTask) {\n // send work start if first task\n if (this.freeThreads.length === this.poolSize) {\n this.onworkstart({type: 'work-start'});\n }\n // launch task or queue\n if (this.freeThreads.length > 0) {\n // get the first free worker thread\n const workerThread = this.freeThreads.shift();\n // add the thread to the runnning list\n this.runningThreads.push(workerThread);\n // run the input task\n workerThread.run(workerTask);\n } else {\n // no free thread, add task to queue\n this.taskQueue.push(workerTask);\n }\n }\n\n /**\n * Abort all threads.\n */\n abort() {\n // stop all threads\n this.#stop();\n // callback\n this.onabort({type: 'work-abort'});\n this.onworkend({type: 'work-end'});\n }\n\n /**\n * Handle a task end.\n *\n * @param {object} workerThread The thread to free.\n */\n onTaskEnd(workerThread) {\n // launch next task in queue or finish\n if (this.taskQueue.length > 0) {\n // get waiting task\n const workerTask = this.taskQueue.shift();\n // use input thread to run the waiting task\n workerThread.run(workerTask);\n } else {\n // stop the worker\n workerThread.stop();\n // no task to run, add to free list\n this.freeThreads.push(workerThread);\n // remove from running list\n for (let i = 0; i < this.runningThreads.length; ++i) {\n if (this.runningThreads[i].getId() === workerThread.getId()) {\n this.runningThreads.splice(i, 1);\n }\n }\n // the work is done when the queue is back to its initial size\n if (this.freeThreads.length === this.poolSize) {\n this.onwork({type: 'work'});\n this.onworkend({type: 'work-end'});\n }\n }\n }\n\n /**\n * Handle an error message from a worker.\n *\n * @param {object} event The error event.\n */\n handleWorkerError = (event) => {\n // stop all threads\n this.#stop();\n // callback\n this.onerror({error: event});\n this.onworkend({type: 'work-end'});\n };\n\n // private ----------------------------------------------------------------\n\n /**\n * Stop the pool: stop all running threads.\n *\n */\n #stop() {\n // clear tasks\n this.taskQueue = [];\n // cancel running workers\n for (let i = 0; i < this.runningThreads.length; ++i) {\n this.runningThreads[i].stop();\n }\n this.runningThreads = [];\n }\n\n\n /**\n * Handle a work start event.\n * Default does nothing.\n *\n * @param {object} _event The work start event.\n */\n onworkstart(_event) {}\n\n /**\n * Handle a work item event.\n * Default does nothing.\n *\n * @param {object} _event The work item event fired\n * when a work item ended successfully.\n */\n onworkitem(_event) {}\n\n /**\n * Handle a work event.\n * Default does nothing.\n *\n * @param {object} _event The work event fired\n * when a work ended successfully.\n */\n onwork(_event) {}\n\n /**\n * Handle a work end event.\n * Default does nothing.\n *\n * @param {object} _event The work end event fired\n * when a work has completed, successfully or not.\n */\n onworkend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // ThreadPool\n\n/**\n * Worker background task.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/Worker}.\n *\n * @external Worker\n */\n\n/**\n * Worker thread.\n */\nclass WorkerThread {\n\n /**\n * @param {object} parentPool The parent pool.\n */\n constructor(parentPool) {\n this.parentPool = parentPool;\n // thread ID\n this.id = Math.random().toString(36).substring(2, 15);\n // running task\n this.runningTask = null;\n // worker used to run task\n this.worker;\n }\n\n /**\n * Get the thread ID.\n *\n * @returns {string} The thread ID (alphanumeric).\n */\n getId() {\n return this.id;\n }\n\n /**\n * Run a worker task.\n *\n * @param {object} workerTask The task to run.\n */\n run(workerTask) {\n // store task\n this.runningTask = workerTask;\n // create a new web worker if not done yet\n if (typeof this.worker === 'undefined') {\n this.worker = new Worker(this.runningTask.script);\n // set callbacks\n this.worker.onmessage = this.onmessage;\n this.worker.onerror = this.onerror;\n }\n // launch the worker\n this.worker.postMessage(this.runningTask.startMessage);\n }\n\n /**\n * Finish a task and tell the parent.\n */\n stop() {\n // stop the worker\n if (typeof this.worker !== 'undefined') {\n this.worker.terminate();\n // force create at next run\n this.worker = undefined;\n }\n }\n\n /**\n * Message event handler.\n * For now assume we only get a single callback from a worker\n * which also indicates the end of this worker.\n *\n * @param {object} event The message event.\n */\n onmessage = (event) => {\n // augment event\n event.itemNumber = this.runningTask.info.itemNumber;\n event.numberOfItems = this.runningTask.info.numberOfItems;\n event.index = this.runningTask.info.index;\n // send event\n this.parentPool.onworkitem(event);\n // tell the parent pool the task is done\n this.parentPool.onTaskEnd(this);\n };\n\n /**\n * Error event handler.\n *\n * @param {object} event The error event.\n */\n onerror = (event) => {\n // augment event\n event.itemNumber = this.runningTask.info.itemNumber;\n event.numberOfItems = this.runningTask.info.numberOfItems;\n event.index = this.runningTask.info.index;\n // pass to parent\n this.parentPool.handleWorkerError(event);\n // stop the worker and free the thread\n this.stop();\n };\n} // class WorkerThread\n\n/**\n * Worker task.\n */\nexport class WorkerTask {\n /**\n * @param {string} script The worker script.\n * @param {object} message The data to pass to the worker.\n * @param {object} info Information object about the input data.\n */\n constructor(script, message, info) {\n // worker script\n this.script = script;\n // worker start message\n this.startMessage = message;\n // information about the work data\n this.info = info;\n }\n}\n","import {ThreadPool, WorkerTask} from '../utils/thread';\n\n/**\n * The JPEG baseline decoder.\n *\n * Ref: {@link https://github.com/mozilla/pdf.js/blob/master/src/core/jpg.js}.\n *\n * @external JpegImage\n */\n/* global JpegImage */\n// @ts-ignore\nconst hasJpegBaselineDecoder = (typeof JpegImage !== 'undefined');\n\n/**\n * The JPEG decoder namespace.\n *\n * Ref: {@link https://github.com/rii-mango/JPEGLosslessDecoderJS}.\n *\n * @external jpeg\n */\n/* global jpeg */\nconst hasJpegLosslessDecoder =\n // @ts-ignore\n (typeof jpeg !== 'undefined') && (typeof jpeg.lossless !== 'undefined');\n\n/**\n * The JPEG 2000 decoder.\n *\n * Ref: {@link https://github.com/jpambrun/jpx-medical/blob/master/jpx.js}.\n *\n * @external JpxImage\n */\n/* global JpxImage */\n// @ts-ignore\nconst hasJpeg2000Decoder = (typeof JpxImage !== 'undefined');\n\n/* global dwvdecoder */\n\n/**\n * Decoder scripts to be passed to web workers for image decoding.\n */\nexport const decoderScripts = {\n jpeg2000: '',\n 'jpeg-lossless': '',\n 'jpeg-baseline': '',\n rle: ''\n};\n\n/**\n * Asynchronous pixel buffer decoder.\n */\nclass AsynchPixelBufferDecoder {\n\n /**\n * The associated worker script.\n *\n * @type {string}\n */\n #script;\n\n /**\n * Associated thread pool.\n *\n * @type {ThreadPool}\n */\n #pool = new ThreadPool(10);\n\n /**\n * Flag to know if callbacks are set.\n *\n * @type {boolean}\n */\n #areCallbacksSet = false;\n\n /**\n * @param {string} script The path to the decoder script to be used\n * by the web worker.\n * @param {number} _numberOfData The anticipated number of data to decode.\n */\n constructor(script, _numberOfData) {\n this.#script = script;\n }\n\n /**\n * Decode a pixel buffer.\n *\n * @param {Array} pixelBuffer The pixel buffer.\n * @param {object} pixelMeta The input meta data.\n * @param {object} info Information object about the input data.\n */\n decode(pixelBuffer, pixelMeta, info) {\n if (!this.#areCallbacksSet) {\n this.#areCallbacksSet = true;\n // set event handlers\n this.#pool.onworkstart = this.ondecodestart;\n this.#pool.onworkitem = this.ondecodeditem;\n this.#pool.onwork = this.ondecoded;\n this.#pool.onworkend = this.ondecodeend;\n this.#pool.onerror = this.onerror;\n this.#pool.onabort = this.onabort;\n }\n // create worker task\n const workerTask = new WorkerTask(\n this.#script,\n {\n buffer: pixelBuffer,\n meta: pixelMeta\n },\n info\n );\n // add it the queue and run it\n this.#pool.addWorkerTask(workerTask);\n }\n\n /**\n * Abort decoding.\n */\n abort() {\n // abort the thread pool, will trigger pool.onabort\n this.#pool.abort();\n }\n\n /**\n * Handle a decode start event.\n * Default does nothing.\n *\n * @param {object} _event The decode start event.\n */\n ondecodestart(_event) {}\n\n /**\n * Handle a decode item event.\n * Default does nothing.\n *\n * @param {object} _event The decode item event fired\n * when a decode item ended successfully.\n */\n ondecodeditem(_event) {}\n\n /**\n * Handle a decode event.\n * Default does nothing.\n *\n * @param {object} _event The decode event fired\n * when a file has been decoded successfully.\n */\n ondecoded(_event) {}\n\n /**\n * Handle a decode end event.\n * Default does nothing.\n *\n * @param {object} _event The decode end event fired\n * when a file decoding has completed, successfully or not.\n */\n ondecodeend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class AsynchPixelBufferDecoder\n\n/**\n * Synchronous pixel buffer decoder.\n */\nclass SynchPixelBufferDecoder {\n\n /**\n * Name of the compression algorithm.\n *\n * @type {string}\n */\n #algoName;\n\n /**\n * Number of data.\n *\n * @type {number}\n */\n #numberOfData;\n\n /**\n * @param {string} algoName The decompression algorithm name.\n * @param {number} numberOfData The anticipated number of data to decode.\n */\n constructor(algoName, numberOfData) {\n this.#algoName = algoName;\n this.#numberOfData = numberOfData;\n }\n\n // decode count\n #decodeCount = 0;\n\n /**\n * Decode a pixel buffer.\n *\n * @param {Array} pixelBuffer The pixel buffer.\n * @param {object} pixelMeta The input meta data.\n * @param {object} info Information object about the input data.\n * @external jpeg\n * @external JpegImage\n * @external JpxImage\n */\n decode(pixelBuffer, pixelMeta, info) {\n ++this.#decodeCount;\n\n let decoder = null;\n let decodedBuffer = null;\n if (this.#algoName === 'jpeg-lossless') {\n if (!hasJpegLosslessDecoder) {\n throw new Error('No JPEG Lossless decoder provided');\n }\n // bytes per element\n const bpe = pixelMeta.bitsAllocated / 8;\n const buf = new Uint8Array(pixelBuffer);\n // @ts-ignore\n decoder = new jpeg.lossless.Decoder();\n const decoded = decoder.decode(buf.buffer, 0, buf.buffer.byteLength, bpe);\n if (pixelMeta.bitsAllocated === 8) {\n if (pixelMeta.isSigned) {\n decodedBuffer = new Int8Array(decoded.buffer);\n } else {\n decodedBuffer = new Uint8Array(decoded.buffer);\n }\n } else if (pixelMeta.bitsAllocated === 16) {\n if (pixelMeta.isSigned) {\n decodedBuffer = new Int16Array(decoded.buffer);\n } else {\n decodedBuffer = new Uint16Array(decoded.buffer);\n }\n }\n } else if (this.#algoName === 'jpeg-baseline') {\n if (!hasJpegBaselineDecoder) {\n throw new Error('No JPEG Baseline decoder provided');\n }\n // @ts-ignore\n decoder = new JpegImage();\n decoder.parse(pixelBuffer);\n decodedBuffer = decoder.getData(decoder.width, decoder.height);\n } else if (this.#algoName === 'jpeg2000') {\n if (!hasJpeg2000Decoder) {\n throw new Error('No JPEG 2000 decoder provided');\n }\n // decompress pixel buffer into Int16 image\n // @ts-ignore\n decoder = new JpxImage();\n decoder.parse(pixelBuffer);\n // set the pixel buffer\n decodedBuffer = decoder.tiles[0].items;\n } else if (this.#algoName === 'rle') {\n // decode DICOM buffer\n // @ts-ignore\n decoder = new dwvdecoder.RleDecoder();\n // set the pixel buffer\n decodedBuffer = decoder.decode(\n pixelBuffer,\n pixelMeta.bitsAllocated,\n pixelMeta.isSigned,\n pixelMeta.sliceSize,\n pixelMeta.samplesPerPixel,\n pixelMeta.planarConfiguration);\n }\n // send decode events\n this.ondecodeditem({\n data: [decodedBuffer],\n index: info.index,\n numberOfItems: info.numberOfItems,\n itemNumber: info.itemNumber\n });\n // decode end?\n if (this.#decodeCount === this.#numberOfData) {\n this.ondecoded({});\n this.ondecodeend({});\n }\n }\n\n /**\n * Abort decoding.\n */\n abort() {\n // nothing to do in the synchronous case.\n // callback\n this.onabort({});\n this.ondecodeend({});\n }\n\n /**\n * Handle a decode start event.\n * Default does nothing.\n *\n * @param {object} _event The decode start event.\n */\n ondecodestart(_event) {}\n\n /**\n * Handle a decode item event.\n * Default does nothing.\n *\n * @param {object} _event The decode item event fired\n * when a decode item ended successfully.\n */\n ondecodeditem(_event) {}\n\n /**\n * Handle a decode event.\n * Default does nothing.\n *\n * @param {object} _event The decode event fired\n * when a file has been decoded successfully.\n */\n ondecoded(_event) {}\n\n /**\n * Handle a decode end event.\n * Default does nothing.\n *\n * @param {object} _event The decode end event fired\n * when a file decoding has completed, successfully or not.\n */\n ondecodeend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class SynchPixelBufferDecoder\n\n/**\n * Decode a pixel buffer.\n *\n * If the 'decoderScripts' variable does not contain the desired,\n * algorythm the decoder will switch to the synchronous mode.\n */\nexport class PixelBufferDecoder {\n\n /**\n * Flag to know if callbacks are set.\n *\n * @type {boolean}\n */\n #areCallbacksSet = false;\n\n /**\n * Pixel decoder.\n * Defined only once.\n *\n * @type {object}\n */\n #pixelDecoder = null;\n\n /**\n * @param {string} algoName The decompression algorithm name.\n * @param {number} numberOfData The anticipated number of data to decode.\n */\n constructor(algoName, numberOfData) {\n // initialise the asynch decoder (if possible)\n if (typeof decoderScripts !== 'undefined' &&\n typeof decoderScripts[algoName] !== 'undefined') {\n this.#pixelDecoder = new AsynchPixelBufferDecoder(\n decoderScripts[algoName], numberOfData);\n } else {\n this.#pixelDecoder = new SynchPixelBufferDecoder(\n algoName, numberOfData);\n }\n }\n\n /**\n * Get data from an input buffer using a DICOM parser.\n *\n * @param {Array} pixelBuffer The input data buffer.\n * @param {object} pixelMeta The input meta data.\n * @param {object} info Information object about the input data.\n */\n decode(pixelBuffer, pixelMeta, info) {\n if (!this.#areCallbacksSet) {\n this.#areCallbacksSet = true;\n // set callbacks\n this.#pixelDecoder.ondecodestart = this.ondecodestart;\n this.#pixelDecoder.ondecodeditem = this.ondecodeditem;\n this.#pixelDecoder.ondecoded = this.ondecoded;\n this.#pixelDecoder.ondecodeend = this.ondecodeend;\n this.#pixelDecoder.onerror = this.onerror;\n this.#pixelDecoder.onabort = this.onabort;\n }\n // decode and call the callback\n this.#pixelDecoder.decode(pixelBuffer, pixelMeta, info);\n }\n\n /**\n * Abort decoding.\n */\n abort() {\n // decoder classes should define an abort\n this.#pixelDecoder.abort();\n }\n\n /**\n * Handle a decode start event.\n * Default does nothing.\n *\n * @param {object} _event The decode start event.\n */\n ondecodestart(_event) {}\n\n /**\n * Handle a decode item event.\n * Default does nothing.\n *\n * @param {object} _event The decode item event fired\n * when a decode item ended successfully.\n */\n ondecodeditem(_event) {}\n\n /**\n * Handle a decode event.\n * Default does nothing.\n *\n * @param {object} _event The decode event fired\n * when a file has been decoded successfully.\n */\n ondecoded(_event) {}\n\n /**\n * Handle a decode end event.\n * Default does nothing.\n *\n * @param {object} _event The decode end event fired\n * when a file decoding has completed, successfully or not.\n */\n ondecodeend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class PixelBufferDecoder\n","import {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n NumericValue: '0040A30A',\n FloatingPointValue: '0040A161',\n RationalNumeratorValue: '0040A162',\n RationalDenominatorValue: '0040A163',\n MeasurementUnitsCodeSequence: '004008EA'\n};\n\n/**\n * DICOM measured value: property of a numeric measurement.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.html#table_C.18.1-1}.\n */\nexport class MeasuredValue {\n /**\n * @type {number}\n */\n numericValue;\n\n /**\n * @type {number}\n */\n floatingPointValue;\n\n /**\n * @type {number}\n */\n rationalNumeratorValue;\n\n /**\n * @type {number}\n */\n rationalDenominatorValue;\n\n /**\n * @type {object}\n */\n measurementUnitsCode;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.numericValue + ' ' +\n this.measurementUnitsCode.toString();\n };\n\n};\n\n/**\n * Get a measured value object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {MeasuredValue} A measured value object.\n */\nexport function getMeasuredValue(dataElements) {\n const value = new MeasuredValue();\n\n if (typeof dataElements[TagKeys.NumericValue] !== 'undefined') {\n value.numericValue = dataElements[TagKeys.NumericValue].value[0];\n }\n if (typeof dataElements[TagKeys.FloatingPointValue] !== 'undefined') {\n value.floatingPointValue =\n dataElements[TagKeys.FloatingPointValue].value[0];\n }\n if (typeof dataElements[TagKeys.RationalNumeratorValue] !== 'undefined') {\n value.rationalNumeratorValue =\n dataElements[TagKeys.RationalNumeratorValue].value[0];\n }\n if (typeof dataElements[TagKeys.RationalDenominatorValue] !== 'undefined') {\n value.rationalDenominatorValue =\n dataElements[TagKeys.RationalDenominatorValue].value[0];\n }\n if (typeof dataElements[TagKeys.MeasurementUnitsCodeSequence] !==\n 'undefined') {\n value.measurementUnitsCode = getCode(\n dataElements[TagKeys.MeasurementUnitsCodeSequence].value[0]);\n }\n\n return value;\n};\n\n/**\n * Get a simple dicom element item from a measured value object.\n *\n * @param {MeasuredValue} value The measured value object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomMeasuredValueItem(value) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof value.measurementUnitsCode !== 'undefined') {\n item.MeasurementUnitsCodeSequence = {\n value: [getDicomCodeItem(value.measurementUnitsCode)]\n };\n }\n if (typeof value.floatingPointValue !== 'undefined') {\n item.FloatingPointValue = value.floatingPointValue;\n }\n if (typeof value.rationalNumeratorValue !== 'undefined') {\n item.RationalNumeratorValue = value.rationalNumeratorValue;\n }\n if (typeof value.rationalDenominatorValue !== 'undefined') {\n item.RationalDenominatorValue = value.rationalDenominatorValue;\n }\n if (typeof value.numericValue !== 'undefined') {\n item.NumericValue = value.numericValue;\n }\n\n // return\n return item;\n}\n","import {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\nimport {\n getMeasuredValue,\n getDicomMeasuredValueItem\n} from './dicomMeasuredValue';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n MeasuredValueSequence: '0040A300',\n NumericValueQualifierCodeSequence: '0040A301'\n};\n\n/**\n * DICOM numeric measurement: item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.html#table_C.18.1-1}.\n */\nexport class NumericMeasurement {\n /**\n * @type {object}\n */\n measuredValue;\n\n /**\n * @type {object}\n */\n numericValueQualifierCode;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n let res = this.measuredValue.toString();\n if (typeof this.numericValueQualifierCode !== 'undefined') {\n res += ' ' + this.numericValueQualifierCode.toString();\n }\n return res;\n }\n};\n\n/**\n * Get a measurement object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {NumericMeasurement} A measurement object.\n */\nexport function getNumericMeasurement(dataElements) {\n const measurement = new NumericMeasurement();\n\n if (typeof dataElements[TagKeys.MeasuredValueSequence] !== 'undefined') {\n measurement.measuredValue = getMeasuredValue(\n dataElements[TagKeys.MeasuredValueSequence].value[0]);\n }\n if (typeof dataElements[TagKeys.NumericValueQualifierCodeSequence] !==\n 'undefined') {\n measurement.numericValueQualifierCode = getCode(\n dataElements[TagKeys.NumericValueQualifierCodeSequence].value[0]);\n }\n\n return measurement;\n};\n\n/**\n * Get a simple dicom element item from a measurement object.\n *\n * @param {NumericMeasurement} measurement The measurement object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomNumericMeasurementItem(measurement) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof measurement.measuredValue !== 'undefined') {\n item.MeasuredValueSequence = {\n value: [getDicomMeasuredValueItem(measurement.measuredValue)]\n };\n }\n if (typeof measurement.numericValueQualifierCode !== 'undefined') {\n item.NumericValueQualifierCodeSequence = {\n value: [getDicomCodeItem(measurement.numericValueQualifierCode)]\n };\n }\n\n // return\n return item;\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n ReferencedSOPClassUID: '00081150',\n ReferencedSOPInstanceUID: '00081155'\n};\n\n/**\n * DICOM sop instance reference.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_10.8.html#table_10-11}.\n */\nexport class SopInstanceReference {\n /**\n * @type {string}\n */\n referencedSOPClassUID;\n\n /**\n * @type {string}\n */\n referencedSOPInstanceUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.referencedSOPInstanceUID + ' (class: ' +\n this.referencedSOPClassUID + ')';\n };\n};\n\n/**\n * Get a SOP reference object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {SopInstanceReference} A SOP reference object.\n */\nexport function getSopInstanceReference(dataElements) {\n const ref = new SopInstanceReference();\n\n if (typeof dataElements[TagKeys.ReferencedSOPClassUID] !== 'undefined') {\n ref.referencedSOPClassUID =\n dataElements[TagKeys.ReferencedSOPClassUID].value[0];\n }\n if (typeof dataElements[TagKeys.ReferencedSOPInstanceUID] !== 'undefined') {\n ref.referencedSOPInstanceUID =\n dataElements[TagKeys.ReferencedSOPInstanceUID].value[0];\n }\n\n return ref;\n};\n\n/**\n * Get a simple dicom element item from a SOP reference object.\n *\n * @param {SopInstanceReference} ref The SOP reference object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSopInstanceReferenceItem(ref) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof ref.referencedSOPClassUID !== 'undefined') {\n item.ReferencedSOPClassUID = ref.referencedSOPClassUID;\n }\n if (typeof ref.referencedSOPInstanceUID !== 'undefined') {\n item.ReferencedSOPInstanceUID = ref.referencedSOPInstanceUID;\n }\n\n // return\n return item;\n}\n","import {\n getSopInstanceReference,\n getDicomSopInstanceReferenceItem\n} from './dicomSopInstanceReference';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n ReferencedFrameNumber: '00081160',\n ReferencedSOPSequence: '00081199',\n ReferencedSegmentNumber: '0062000B'\n};\n\n/**\n * DICOM image reference: item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.4.html#table_C.18.4-1}.\n */\nexport class ImageReference {\n /**\n * @type {object}\n */\n referencedSOPSequence;\n\n /**\n * @type {object}\n */\n referencedFrameNumber;\n\n /**\n * @type {string}\n */\n referencedSegmentNumber;\n\n /**\n * @type {string}\n */\n fiducialUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.referencedSOPSequence.toString();\n };\n};\n\n/**\n * Get a reference object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {ImageReference} A reference object.\n */\nexport function getImageReference(dataElements) {\n const ref = new ImageReference();\n\n if (typeof dataElements[TagKeys.ReferencedFrameNumber] !== 'undefined') {\n ref.referencedFrameNumber =\n dataElements[TagKeys.ReferencedFrameNumber].value[0];\n }\n if (typeof dataElements[TagKeys.ReferencedSOPSequence] !== 'undefined') {\n ref.referencedSOPSequence = getSopInstanceReference(\n dataElements[TagKeys.ReferencedSOPSequence].value[0]);\n }\n if (typeof dataElements[TagKeys.ReferencedSegmentNumber] !== 'undefined') {\n ref.referencedSegmentNumber =\n dataElements[TagKeys.ReferencedSegmentNumber].value[0];\n }\n\n return ref;\n};\n\n/**\n * Get a simple dicom element item from a reference object.\n *\n * @param {ImageReference} ref The reference object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomImageReferenceItem(ref) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof ref.referencedFrameNumber !== 'undefined') {\n item.ReferencedFrameNumber = ref.referencedFrameNumber;\n }\n if (typeof ref.referencedSOPSequence !== 'undefined') {\n item.ReferencedSOPSequence = {\n value: [getDicomSopInstanceReferenceItem(ref.referencedSOPSequence)]\n };\n }\n if (typeof ref.referencedSegmentNumber !== 'undefined') {\n item.ReferencedSegmentNumber =\n ref.referencedSegmentNumber;\n }\n\n // return\n return item;\n}\n","import {Point2D} from '../math/point';\nimport {Circle} from '../math/circle';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n PixelOriginInterpretation: '00480301',\n GraphicData: '00700022',\n GraphicType: '00700023',\n FiducialUID: '0070031A'\n};\n\n/**\n * DICOM graphic types.\n */\nconst GraphicTypes = {\n point: 'POINT',\n multipoint: 'MULTIPOINT',\n polyline: 'POLYLINE',\n circle: 'CIRCLE',\n ellipse: 'ELLIPSE'\n};\n\n/**\n * DICOM spatial coordinate (SCOORD): item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.6.html#table_C.18.6-1}.\n */\nexport class SpatialCoordinate {\n /**\n * @type {string[]}\n */\n graphicData;\n\n /**\n * @type {string}\n */\n graphicType;\n\n /**\n * @type {string}\n */\n pixelOriginInterpretation;\n\n /**\n * @type {string}\n */\n fiducialUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.graphicType +\n ' {' + this.graphicData + '}';\n };\n};\n\n/**\n * Get a scoord object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {SpatialCoordinate} A scoord object.\n */\nexport function getSpatialCoordinate(dataElements) {\n const scoord = new SpatialCoordinate();\n\n if (typeof dataElements[TagKeys.GraphicData] !== 'undefined') {\n scoord.graphicData = dataElements[TagKeys.GraphicData].value;\n }\n if (typeof dataElements[TagKeys.GraphicType] !== 'undefined') {\n scoord.graphicType = dataElements[TagKeys.GraphicType].value[0];\n }\n if (typeof dataElements[TagKeys.PixelOriginInterpretation] !== 'undefined') {\n scoord.pixelOriginInterpretation =\n dataElements[TagKeys.PixelOriginInterpretation].value[0];\n }\n if (typeof dataElements[TagKeys.FiducialUID] !== 'undefined') {\n scoord.fiducialUID = dataElements[TagKeys.FiducialUID].value[0];\n }\n return scoord;\n};\n\n/**\n * Get a simple dicom element item from a scoord object.\n *\n * @param {SpatialCoordinate} scoord The scoord object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSpatialCoordinateItem(scoord) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof scoord.pixelOriginInterpretation !== 'undefined') {\n item.PixelOriginInterpretation = scoord.pixelOriginInterpretation;\n }\n if (typeof scoord.graphicData !== 'undefined') {\n item.GraphicData = scoord.graphicData;\n }\n if (typeof scoord.graphicType !== 'undefined') {\n item.GraphicType = scoord.graphicType;\n }\n if (typeof scoord.fiducialUID !== 'undefined') {\n item.FiducialUID = scoord.fiducialUID;\n }\n\n // return\n return item;\n}\n\n/**\n * Get a DICOM spatial coordinate (SCOORD) from a mathematical shape.\n *\n * @param {object} shape The math shape.\n * @returns {SpatialCoordinate} The DICOM scoord.\n */\nexport function getScoordFromShape(shape) {\n const scoord = new SpatialCoordinate();\n\n if (shape instanceof Circle) {\n const center = shape.getCenter();\n const pointPerimeter = new Point2D(\n center.getX() + shape.getRadius(), center.getY()\n );\n scoord.graphicData = [\n center.getX().toString(),\n center.getY().toString(),\n pointPerimeter.getX().toString(),\n pointPerimeter.getY().toString(),\n ];\n scoord.graphicType = GraphicTypes.circle;\n }\n\n return scoord;\n};\n\n/**\n * Get a mathematical shape from a DICOM spatial coordinate (SCOORD).\n *\n * @param {SpatialCoordinate} scoord The DICOM scoord.\n * @returns {object} The math shape.\n */\nexport function getShapeFromScoord(scoord) {\n let shape;\n if (scoord.graphicType === GraphicTypes.circle) {\n const center = new Point2D(\n parseFloat(scoord.graphicData[0]),\n parseFloat(scoord.graphicData[1])\n );\n const pointPerimeter = new Point2D(\n parseFloat(scoord.graphicData[2]),\n parseFloat(scoord.graphicData[3])\n );\n const radius = pointPerimeter.getDistance(center);\n\n shape = new Circle(center, radius);\n }\n\n return shape;\n};","// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n GraphicData: '00700022',\n GraphicType: '00700023',\n ReferencedFrameofReferenceUID: '30060024',\n FiducialUID: '0070031A'\n};\n\n/**\n * DICOM spatial coordinate 3D (SCOORD3D): item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.9.html#table_C.18.9-1}.\n */\nexport class SpatialCoordinate3D {\n /**\n * @type {string[]}\n */\n graphicData;\n\n /**\n * @type {string}\n */\n graphicType;\n\n /**\n * @type {string}\n */\n referencedFrameofReferenceUID;\n\n /**\n * @type {string}\n */\n fiducialUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.graphicType +\n '{' + this.graphicData + '}';\n };\n};\n\n/**\n * Get a scoord3d object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {SpatialCoordinate3D} A scoord3d object.\n */\nexport function getSpatialCoordinate3D(dataElements) {\n const scoord = new SpatialCoordinate3D();\n\n if (typeof dataElements[TagKeys.GraphicData] !== 'undefined') {\n scoord.graphicData = dataElements[TagKeys.GraphicData].value;\n }\n if (typeof dataElements[TagKeys.GraphicType] !== 'undefined') {\n scoord.graphicType = dataElements[TagKeys.GraphicType].value[0];\n }\n if (typeof dataElements[TagKeys.ReferencedFrameofReferenceUID] !==\n 'undefined') {\n scoord.referencedFrameofReferenceUID =\n dataElements[TagKeys.ReferencedFrameofReferenceUID].value[0];\n }\n if (typeof dataElements[TagKeys.FiducialUID] !== 'undefined') {\n scoord.fiducialUID = dataElements[TagKeys.FiducialUID].value[0];\n }\n return scoord;\n};\n\n/**\n * Get a simple dicom element item from a scoord3d object.\n *\n * @param {SpatialCoordinate3D} scoord The scoord3d object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSpatialCoordinate3DItem(scoord) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof scoord.graphicData !== 'undefined') {\n item.GraphicData = scoord.graphicData;\n }\n if (typeof scoord.graphicType !== 'undefined') {\n item.GraphicType = scoord.graphicType;\n }\n if (typeof scoord.referencedFrameofReferenceUID !== 'undefined') {\n item.ReferencedFrameofReferenceUID =\n scoord.referencedFrameofReferenceUID;\n }\n if (typeof scoord.fiducialUID !== 'undefined') {\n item.FiducialUID = scoord.fiducialUID;\n }\n\n // return\n return item;\n}","import {\n getNumericMeasurement,\n getDicomNumericMeasurementItem\n} from './dicomNumericMeasurement';\nimport {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\nimport {\n getImageReference,\n getDicomImageReferenceItem\n} from './dicomImageReference';\nimport {\n getSopInstanceReference,\n getDicomSopInstanceReferenceItem\n} from './dicomSopInstanceReference';\nimport {\n getSpatialCoordinate,\n getDicomSpatialCoordinateItem\n} from './dicomSpatialCoordinate';\nimport {\n getSpatialCoordinate3D,\n getDicomSpatialCoordinate3DItem\n} from './dicomSpatialCoordinate3D';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\nimport {DicomCode} from './dicomCode';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n ReferencedSOPSequence: '00081199',\n RelationshipType: '0040A010',\n ValueType: '0040A040',\n ConceptNameCodeSequence: '0040A043',\n ConceptCodeSequence: '0040A168',\n ContentSequence: '0040A730',\n DateTime: '0040A120',\n Date: '0040A121',\n Time: '0040A122',\n UID: '0040A124',\n PersonName: '0040A123',\n TextValue: '0040A160',\n ContinuityOfContent: '0040A050'\n};\n\n/**\n * DICOM relationship types.\n */\nexport const RelationshipTypes = {\n contains: 'CONTAINS',\n hasProperties: 'HAS PROPERTIES',\n hasObsContext: 'HAS OBS CONTEXT',\n hasAcqContext: 'HAS ACQ CONTEXT',\n inferredFrom: 'INFERRED FROM',\n selectedFrom: 'SELECTED FROM',\n hasConceptMod: 'HAS CONCEPT MOD'\n};\n\n/**\n * DICOM value types.\n */\nexport const ValueTypes = {\n text: 'TEXT',\n num: 'NUM',\n code: 'CODE',\n date: 'DATE',\n time: 'TIME',\n datetime: 'DATETIME',\n uidref: 'UIDREF',\n pname: 'PNAME',\n composite: 'COMPOSITE',\n image: 'IMAGE',\n waveform: 'WAVEFORM',\n scoord: 'SCOORD',\n scoord3d: 'SCOORD3D',\n tcoord: 'TCOORD',\n container: 'CONTAINER',\n table: 'TABLE',\n};\n\n/**\n * DICOM value type to associated tag name.\n */\nexport const ValueTypeValueTagName = {\n TEXT: 'TextValue',\n DATE: 'Date',\n TIME: 'Time',\n DATETIME: 'DateTime',\n UIDREF: 'UID',\n PNAME: 'PersonName',\n CONTAINER: 'ContinuityOfContent',\n};\n\n/**\n * DICOM SR content: item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.17.3.html}.\n */\nexport class DicomSRContent {\n /**\n * Value type.\n *\n * @type {string}\n */\n valueType;\n /**\n * Concept name code.\n *\n * @type {DicomCode|undefined}\n */\n conceptNameCode;\n /**\n * Relationship Type.\n *\n * @type {string}\n */\n relationshipType;\n\n /**\n * Content sequence (0040,A730).\n *\n * @type {DicomSRContent[]|undefined}\n */\n contentSequence;\n\n /**\n * Value.\n *\n * @type {object}\n */\n value;\n\n /**\n * @param {string} valueType The content item value type.\n */\n constructor(valueType) {\n this.valueType = valueType;\n }\n\n /**\n * Get a string representation of this object.\n *\n * @param {string} [prefix] An optional prefix for recursive content.\n * @returns {string} The object as string.\n */\n toString(prefix) {\n if (typeof prefix === 'undefined') {\n prefix = '';\n }\n\n let res = '';\n\n if (typeof this.relationshipType !== 'undefined') {\n res += '(' + this.relationshipType + ') ';\n }\n\n res += this.valueType + ': ';\n\n if (typeof this.conceptNameCode !== 'undefined') {\n res += this.conceptNameCode.toString();\n }\n\n res += ' = ' + this.value.toString();\n\n if (typeof this.contentSequence !== 'undefined') {\n for (const item of this.contentSequence) {\n res += '\\n' + prefix + '- ' + item.toString(prefix + ' ');\n }\n }\n\n return res;\n }\n}\n\n/**\n * Check if two content item objects are equal.\n *\n * @param {DicomCode} item1 The first content item.\n * @param {DicomCode} item2 The second content item.\n * @returns {boolean} True if both content items are equal.\n */\nexport function isEqualContentItem(item1, item2) {\n return Object.keys(item1).length === Object.keys(item2).length &&\n Object.keys(item1).every(key =>\n Object.prototype.hasOwnProperty.call(item2, key) &&\n item1[key] === item2[key]\n );\n}\n\n/**\n * Get a content item object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {DicomSRContent} A content item object.\n */\nexport function getSRContent(dataElements) {\n // valueType -> ValueType (type1)\n let valueType = '';\n if (typeof dataElements[TagKeys.ValueType] !== 'undefined') {\n valueType = dataElements[TagKeys.ValueType].value[0];\n }\n\n const content = new DicomSRContent(valueType);\n\n // relationshipType -> RelationType (type1)\n if (typeof dataElements[TagKeys.RelationshipType] !== 'undefined') {\n content.relationshipType =\n dataElements[TagKeys.RelationshipType].value[0];\n }\n\n if (typeof dataElements[TagKeys.ConceptNameCodeSequence] !== 'undefined') {\n content.conceptNameCode =\n getCode(dataElements[TagKeys.ConceptNameCodeSequence].value[0]);\n }\n\n // set value acording to valueType\n // (date and time are stored as string)\n if (valueType === ValueTypes.code) {\n content.value = getCode(\n dataElements[TagKeys.ConceptCodeSequence].value[0]);\n } else if (valueType === ValueTypes.num) {\n content.value = getNumericMeasurement(dataElements);\n } else if (valueType === ValueTypes.image) {\n content.value = getImageReference(dataElements);\n } else if (valueType === ValueTypes.composite) {\n content.value = getSopInstanceReference(\n dataElements[TagKeys.ReferencedSOPSequence].value[0]\n );\n } else if (valueType === ValueTypes.scoord) {\n content.value = getSpatialCoordinate(dataElements);\n } else if (valueType === ValueTypes.scoord3d) {\n content.value = getSpatialCoordinate3D(dataElements);\n } else {\n const valueTagName = ValueTypeValueTagName[valueType];\n if (typeof valueTagName !== 'undefined') {\n content.value = dataElements[TagKeys[valueTagName]].value[0];\n } else {\n console.warn('Unsupported input ValueType: ' + valueType);\n }\n }\n\n const contentSqEl = dataElements[TagKeys.ContentSequence];\n if (typeof contentSqEl !== 'undefined') {\n content.contentSequence = [];\n for (const item of dataElements[TagKeys.ContentSequence].value) {\n content.contentSequence.push(getSRContent(item));\n }\n }\n\n if (typeof content.value === 'undefined') {\n console.log('valueType', valueType);\n }\n\n return content;\n}\n\n/**\n * Get a simple dicom element item from a content item object.\n *\n * @param {DicomSRContent} content The content item object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSRContentItem(content) {\n // dicom item (tags are in ~group/element order)\n let contentItem = {};\n\n if (typeof content.relationshipType !== 'undefined') {\n contentItem.RelationshipType = content.relationshipType;\n }\n if (typeof content.valueType !== 'undefined') {\n contentItem.ValueType = content.valueType;\n }\n if (typeof content.conceptNameCode !== 'undefined') {\n contentItem.ConceptNameCodeSequence = {\n value: [getDicomCodeItem(content.conceptNameCode)]\n };\n }\n\n // set appropriate value tag (data and time are stored as string)\n if (content.valueType === 'CODE') {\n contentItem.ConceptCodeSequence = {\n value: [getDicomCodeItem(content.value)]\n };\n } else if (content.valueType === ValueTypes.num) {\n contentItem = {\n ...contentItem,\n ...getDicomNumericMeasurementItem(content.value)\n };\n } else if (content.valueType === ValueTypes.image) {\n contentItem = {\n ...contentItem,\n ...getDicomImageReferenceItem(content.value)\n };\n } else if (content.valueType === ValueTypes.composite) {\n contentItem = {\n ...contentItem,\n ...getDicomSopInstanceReferenceItem(content.value)\n };\n } else if (content.valueType === ValueTypes.scoord) {\n contentItem = {\n ...contentItem,\n ...getDicomSpatialCoordinateItem(content.value)\n };\n } else if (content.valueType === ValueTypes.scoord3d) {\n contentItem = {\n ...contentItem,\n ...getDicomSpatialCoordinate3DItem(content.value)\n };\n } else {\n const valueTagName = ValueTypeValueTagName[content.valueType];\n if (typeof valueTagName !== 'undefined') {\n contentItem[valueTagName] = content.value;\n } else {\n console.warn('Unsupported output ValueType: ' + content.valueType);\n }\n }\n\n if (typeof content.contentSequence !== 'undefined') {\n contentItem.ContentSequence = {\n value: []\n };\n for (const item of content.contentSequence) {\n contentItem.ContentSequence.value.push(getDicomSRContentItem(item));\n }\n }\n\n return contentItem;\n}\n","import {\n dateToDateObj,\n getDicomDate,\n dateToTimeObj,\n getDicomTime,\n} from '../dicom/dicomDate';\nimport {\n ValueTypes,\n RelationshipTypes,\n getSRContent,\n getDicomSRContentItem,\n DicomSRContent\n} from '../dicom/dicomSRContent';\nimport {\n getMeasurementGroupCode,\n getImageRegionCode,\n getSourceImageCode,\n getTrackingIdentifierCode,\n getShortLabelCode\n} from '../dicom/dicomCode';\nimport {getElementsFromJSONTags} from '../dicom/dicomWriter';\nimport {ImageReference} from '../dicom/dicomImageReference';\nimport {SopInstanceReference} from '../dicom/dicomSopInstanceReference';\nimport {\n getScoordFromShape,\n getShapeFromScoord\n} from '../dicom/dicomSpatialCoordinate';\nimport {guid} from '../math/stats';\nimport {logger} from '../utils/logger';\nimport {Annotation, AnnotationGroup} from './annotation';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\nimport {ViewController} from '../app/viewController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Merge two tag lists.\n *\n * @param {object} tags1 Base list, will be modified.\n * @param {object} tags2 List to merge.\n */\nfunction mergeTags(tags1, tags2) {\n const keys2 = Object.keys(tags2);\n for (const tagName2 of keys2) {\n if (tags1[tagName2] !== undefined) {\n logger.trace('Overwritting tag: ' + tagName2);\n }\n tags1[tagName2] = tags2[tagName2];\n }\n}\n\n/**\n * {@link Annotation} factory.\n */\nexport class AnnotationFactory {\n\n /**\n * Possible warning created by checkElements.\n *\n * @type {string|undefined}\n */\n #warning;\n\n /**\n * Get a warning string if elements are not as expected.\n * Created by checkElements.\n *\n * @returns {string|undefined} The warning.\n */\n getWarning() {\n return this.#warning;\n }\n\n /**\n * Check dicom elements. Throws an error if not suitable.\n *\n * @param {Object} dataElements The DICOM data elements.\n * @returns {string|undefined} A possible warning.\n */\n checkElements(dataElements) {\n // reset\n this.#warning = undefined;\n\n const srContent = getSRContent(dataElements);\n if (typeof srContent.conceptNameCode !== 'undefined') {\n if (srContent.conceptNameCode.value !== getMeasurementGroupCode().value) {\n this.#warning = 'Not a measurement group';\n }\n } else {\n this.#warning = 'No root concept name code';\n }\n\n return this.#warning;\n }\n\n /**\n * Get an {@link Annotation} object from the read DICOM file.\n *\n * @param {Object} dataElements The DICOM tags.\n * @returns {AnnotationGroup} A new annotation group.\n */\n create(dataElements) {\n const srContent = getSRContent(dataElements);\n\n const annotations = [];\n\n for (const item of srContent.contentSequence) {\n if (item.valueType === ValueTypes.scoord) {\n const annotation = new Annotation();\n annotation.mathShape = getShapeFromScoord(item.value);\n // default\n annotation.id = guid();\n annotation.textExpr = '';\n\n for (const subItem of item.contentSequence) {\n if (subItem.valueType === ValueTypes.image &&\n subItem.relationshipType === RelationshipTypes.selectedFrom) {\n annotation.referenceSopUID =\n subItem.value.referencedSOPSequence.referencedSOPInstanceUID;\n }\n if (subItem.valueType === ValueTypes.uidref &&\n subItem.relationshipType === RelationshipTypes.hasProperties) {\n annotation.id = subItem.value;\n }\n if (subItem.valueType === ValueTypes.text &&\n subItem.relationshipType === RelationshipTypes.hasProperties) {\n annotation.textExpr = subItem.value;\n }\n }\n\n annotations.push(annotation);\n }\n }\n\n const annotationGroup = new AnnotationGroup(annotations);\n\n // Modality\n annotationGroup.setMeta(\n 'Modality', dataElements['00080060'].value[0]\n );\n // ReferencedSeriesSequence\n const element = dataElements['00081115'];\n if (typeof element !== 'undefined') {\n const seriesElement = element.value[0]['0020000E'];\n if (typeof seriesElement !== 'undefined') {\n annotationGroup.setMeta(\n 'ReferencedSeriesSequence', {\n value: [{\n SeriesInstanceUID: seriesElement.value[0]\n }]\n }\n );\n }\n }\n // StudyInstanceUID\n annotationGroup.setMeta(\n 'StudyInstanceUID', dataElements['0020000D'].value[0]\n );\n\n return annotationGroup;\n }\n\n /**\n * Convert an annotation group into a DICOM SR object.\n *\n * @param {AnnotationGroup} annotationGroup The annotation group.\n * @param {Object} [extraTags] Optional list of extra tags.\n * @returns {Object} A list of dicom elements.\n */\n toDicom(annotationGroup, extraTags) {\n let tags = {};\n // transfer syntax: ExplicitVRLittleEndian\n tags.TransferSyntaxUID = '1.2.840.10008.1.2.1';\n // class: Basic Text SR Storage\n tags.SOPClassUID = '1.2.840.10008.5.1.4.1.1.88.11';\n tags.SOPInstanceUID = '1.2.840.10008.5.1.4.1.1.88.11.0';\n tags.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.88.11';\n tags.MediaStorageSOPInstanceUID = '1.2.840.10008.5.1.4.1.1.88.11.0';\n\n tags.Modality = annotationGroup.getMeta('Modality');\n tags.StudyInstanceUID = annotationGroup.getMeta('StudyInstanceUID');\n tags.ReferencedSeriesSequence =\n annotationGroup.getMeta('ReferencedSeriesSequence');\n\n tags.SeriesInstanceUID = '1.2.3.4.5.6';\n\n tags.CompletionFlag = 'PARTIAL';\n tags.VerificationFlag = 'UNVERIFIED';\n\n const now = new Date();\n tags.ContentDate = getDicomDate(dateToDateObj(now));\n tags.ContentTime = getDicomTime(dateToTimeObj(now));\n\n const contentSequence = [];\n\n for (const annotation of annotationGroup.getList()) {\n const srImage = new DicomSRContent(ValueTypes.image);\n srImage.relationshipType = RelationshipTypes.selectedFrom;\n srImage.conceptNameCode = getSourceImageCode();\n const sopRef = new SopInstanceReference();\n sopRef.referencedSOPClassUID = '';\n sopRef.referencedSOPInstanceUID = annotation.referenceSopUID;\n const imageRef = new ImageReference();\n imageRef.referencedSOPSequence = sopRef;\n srImage.value = imageRef;\n\n const srUid = new DicomSRContent(ValueTypes.uidref);\n srUid.relationshipType = RelationshipTypes.hasProperties;\n srUid.conceptNameCode = getTrackingIdentifierCode();\n srUid.value = annotation.id;\n\n const shortLabel = new DicomSRContent(ValueTypes.text);\n shortLabel.relationshipType = RelationshipTypes.hasProperties;\n shortLabel.conceptNameCode = getShortLabelCode();\n shortLabel.value = annotation.textExpr;\n\n const srScoord = new DicomSRContent(ValueTypes.scoord);\n srScoord.relationshipType = RelationshipTypes.contains;\n srScoord.conceptNameCode = getImageRegionCode();\n srScoord.value = getScoordFromShape(annotation.mathShape);\n srScoord.contentSequence = [srImage, srUid, shortLabel];\n\n contentSequence.push(srScoord);\n }\n\n if (contentSequence.length !== 0) {\n const srContent = new DicomSRContent(ValueTypes.container);\n srContent.conceptNameCode = getMeasurementGroupCode();\n srContent.contentSequence = contentSequence;\n\n tags = {\n ...tags,\n ...getDicomSRContentItem(srContent)\n };\n }\n\n // merge extra tags if provided\n if (extraTags !== undefined) {\n mergeTags(tags, extraTags);\n }\n\n return getElementsFromJSONTags(tags);\n }\n\n}","import {ListenerHandler} from '../utils/listen';\nimport {mergeObjects} from '../utils/operator';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from '../image/image';\nimport {AnnotationGroup} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * DICOM data: meta and possible image.\n */\nexport class DicomData {\n /**\n * DICOM meta data.\n *\n * @type {object}\n */\n meta;\n\n /**\n * Image extracted from meta data.\n *\n * @type {Image|undefined}\n */\n image;\n /**\n * Annotattion group extracted from meta data.\n *\n * @type {AnnotationGroup|undefined}\n */\n annotationGroup;\n\n /**\n * @param {object} meta The DICOM meta data.\n */\n constructor(meta) {\n this.meta = meta;\n }\n}\n\n/*\n * DicomData controller.\n */\nexport class DataController {\n\n /**\n * List of DICOM data.\n *\n * @type {Object}\n */\n #dataList = {};\n\n /**\n * Distinct data loaded counter.\n *\n * @type {number}\n */\n #dataIdCounter = -1;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get the next data id.\n *\n * @returns {string} The data id.\n */\n getNextDataId() {\n ++this.#dataIdCounter;\n return this.#dataIdCounter.toString();\n }\n\n /**\n * Get the list of ids in the data storage.\n *\n * @returns {string[]} The list of data ids.\n */\n getDataIds() {\n return Object.keys(this.#dataList);\n }\n\n /**\n * Reset the class: empty the data storage.\n */\n reset() {\n this.#dataList = {};\n }\n\n /**\n * Get a data at a given index.\n *\n * @param {string} dataId The data id.\n * @returns {DicomData|undefined} The DICOM data.\n */\n get(dataId) {\n return this.#dataList[dataId];\n }\n\n /**\n * Get the list of dataIds that contain the input UIDs.\n *\n * @param {string[]} uids A list of UIDs.\n * @returns {string[]} The list of dataIds that contain the UIDs.\n */\n getDataIdsFromSopUids(uids) {\n const res = [];\n // check input\n if (typeof uids === 'undefined' ||\n uids.length === 0) {\n return res;\n }\n const keys = Object.keys(this.#dataList);\n for (const key of keys) {\n if (this.#dataList[key].image.containsImageUids(uids)) {\n res.push(key);\n }\n }\n return res;\n }\n\n /**\n * Set the image at a given index.\n *\n * @param {string} dataId The data id.\n * @param {Image} image The image to set.\n */\n setImage(dataId, image) {\n this.#dataList[dataId].image = image;\n // fire image set\n this.#fireEvent({\n type: 'dataimageset',\n value: [image],\n dataid: dataId\n });\n // listen to image change\n image.addEventListener('imagecontentchange', this.#getFireEvent(dataId));\n image.addEventListener('imagegeometrychange', this.#getFireEvent(dataId));\n }\n\n /**\n * Add a new data.\n *\n * @param {string} dataId The data id.\n * @param {DicomData} data The data.\n */\n add(dataId, data) {\n if (typeof this.#dataList[dataId] !== 'undefined') {\n throw new Error('Data id already used in storage: ' + dataId);\n }\n // store the new image\n this.#dataList[dataId] = data;\n // fire a data add event\n this.#fireEvent({\n type: 'dataadd',\n dataid: dataId\n });\n // listen to image change\n if (typeof data.image !== 'undefined') {\n data.image.addEventListener(\n 'imagecontentchange', this.#getFireEvent(dataId));\n data.image.addEventListener(\n 'imagegeometrychange', this.#getFireEvent(dataId));\n }\n }\n\n /**\n * Remove a data from the list.\n *\n * @param {string} dataId The data id.\n */\n remove(dataId) {\n if (typeof this.#dataList[dataId] !== 'undefined') {\n // stop listeners\n const image = this.#dataList[dataId].image;\n if (typeof image !== 'undefined') {\n image.removeEventListener(\n 'imagecontentchange', this.#getFireEvent(dataId));\n image.removeEventListener(\n 'imagegeometrychange', this.#getFireEvent(dataId));\n }\n // remove data from list\n delete this.#dataList[dataId];\n // fire a data remove event\n this.#fireEvent({\n type: 'dataremove',\n dataid: dataId\n });\n }\n }\n\n /**\n * Update the current data.\n *\n * @param {string} dataId The data id.\n * @param {DicomData} data The data.\n */\n update(dataId, data) {\n if (typeof this.#dataList[dataId] === 'undefined') {\n throw new Error('Cannot find data to update: ' + dataId);\n }\n const dataToUpdate = this.#dataList[dataId];\n\n // add slice to current image\n if (typeof dataToUpdate.image !== 'undefined' &&\n typeof data.image !== 'undefined'\n ) {\n dataToUpdate.image.appendSlice(data.image);\n }\n\n // update meta data\n // TODO add time support\n let idKey = '';\n if (typeof data.meta['00020010'] !== 'undefined') {\n // dicom case, use 'InstanceNumber'\n idKey = '00200013';\n } else {\n idKey = 'imageUid';\n }\n dataToUpdate.meta = mergeObjects(\n dataToUpdate.meta,\n data.meta,\n idKey,\n 'value');\n\n // fire a data add event\n this.#fireEvent({\n type: 'dataupdate',\n dataid: dataId\n });\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Get a fireEvent function that adds the input data id\n * to the event value.\n *\n * @param {string} dataId The data id.\n * @returns {Function} A fireEvent function.\n */\n #getFireEvent(dataId) {\n return (event) => {\n event.dataid = dataId;\n this.#fireEvent(event);\n };\n }\n\n} // DataController class\n","import {arrayEquals} from './array';\n\n/**\n * Merge two similar objects.\n *\n * Objects need to be in the form of:\n * \n * {\n * idKey: {valueKey: [0]},\n * key0: {valueKey: [\"abc\"]},\n * key1: {valueKey: [33]}\n * }\n * .\n *\n * Merged objects will be in the form of:\n * \n * {\n * idKey: {valueKey: [0,1,2], merged: true},\n * key0: {valueKey: {\n * 0: [\"abc\"],\n * 1: [\"def\"],\n * 2: [\"ghi\"]\n * }},\n * key1: {valueKey: {\n * 0: [33],\n * 1: [44],\n * 2: [55]\n * }}\n * }\n * .\n *\n * @param {object} obj1 The first object, can be the result of a previous merge.\n * @param {object} obj2 The second object.\n * @param {string} idKey The key to use as index for duplicate values.\n * @param {string} valueKey The key to use to access object values.\n * @returns {object} The merged object.\n */\nexport function mergeObjects(obj1, obj2, idKey, valueKey) {\n const res = {};\n // check id key\n if (!idKey) {\n throw new Error('Cannot merge object with an undefined id key: ' + idKey);\n } else {\n if (!Object.prototype.hasOwnProperty.call(obj1, idKey)) {\n throw new Error('Id key not found in first object while merging: ' +\n idKey + ', obj: ' + obj1);\n }\n if (!Object.prototype.hasOwnProperty.call(obj2, idKey)) {\n throw new Error('Id key not found in second object while merging: ' +\n idKey + ', obj: ' + obj2);\n }\n }\n // check value key\n if (!valueKey) {\n throw new Error('Cannot merge object with an undefined value key: ' +\n valueKey);\n }\n\n // check if merged object\n let mergedObj1 = false;\n if (Object.prototype.hasOwnProperty.call(obj1[idKey], 'merged') &&\n obj1[idKey].merged) {\n mergedObj1 = true;\n }\n // handle the id part\n if (!Object.prototype.hasOwnProperty.call(obj1[idKey], valueKey)) {\n throw new Error('Id value not found in first object while merging: ' +\n idKey + ', valueKey: ' + valueKey + ', ojb: ' + obj1);\n }\n if (!Object.prototype.hasOwnProperty.call(obj2[idKey], valueKey)) {\n throw new Error('Id value not found in second object while merging: ' +\n idKey + ', valueKey: ' + valueKey + ', ojb: ' + obj2);\n }\n let id1 = obj1[idKey][valueKey];\n const id2 = obj2[idKey][valueKey][0];\n // update id key\n res[idKey] = obj1[idKey];\n if (mergedObj1) {\n // check if array does not include id2\n for (let k = 0; k < id1.length; ++k) {\n if (id1[k] === id2) {\n throw new Error('The first object already contains id2: ' +\n id2 + ', id1: ' + id1);\n }\n }\n res[idKey][valueKey].push(id2);\n } else {\n id1 = id1[0];\n if (id1 === id2) {\n throw new Error('Cannot merge object with same ids: ' +\n id1 + ', id2: ' + id2);\n }\n // update merge object\n res[idKey][valueKey].push(id2);\n res[idKey].merged = true;\n }\n\n // get keys\n const keys1 = Object.keys(obj1);\n // keys2 without duplicates of keys1\n const keys2 = Object.keys(obj2).filter(function (item) {\n return keys1.indexOf(item) < 0;\n });\n const keys = keys1.concat(keys2);\n\n // loop through keys\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n if (key !== idKey) {\n // first\n let value1;\n let subValue1;\n if (Object.prototype.hasOwnProperty.call(obj1, key)) {\n value1 = obj1[key];\n if (Object.prototype.hasOwnProperty.call(value1, valueKey)) {\n subValue1 = value1[valueKey];\n }\n }\n // second\n let value2;\n let subValue2;\n if (Object.prototype.hasOwnProperty.call(obj2, key)) {\n value2 = obj2[key];\n if (Object.prototype.hasOwnProperty.call(value2, valueKey)) {\n subValue2 = value2[valueKey];\n }\n }\n // result value\n let value;\n // use existing to copy properties\n if (typeof value1 !== 'undefined') {\n value = value1;\n } else if (typeof value2 !== 'undefined') {\n value = value2;\n }\n // create merge object if different values\n if (!arrayEquals(subValue1, subValue2)) {\n // add to merged object or create new\n if (mergedObj1) {\n if (Array.isArray(subValue1)) {\n // merged object with repeated value\n // copy it with the index list\n value[valueKey] = {};\n for (let j = 0; j < id1.length; ++j) {\n value[valueKey][id1[j]] = subValue1;\n }\n } else {\n value[valueKey] = subValue1;\n }\n // add obj2 value\n value[valueKey][id2] = subValue2;\n } else {\n // create merge object\n const newValue = {};\n newValue[id1] = subValue1;\n newValue[id2] = subValue2;\n value[valueKey] = newValue;\n }\n }\n // store value in result object\n res[key] = value;\n }\n }\n return res;\n}\n","import {logger} from '../utils/logger';\nimport {\n DicomParser,\n getSyntaxDecompressionName\n} from '../dicom/dicomParser';\nimport {ImageFactory} from './imageFactory';\nimport {MaskFactory} from './maskFactory';\nimport {PixelBufferDecoder} from './decoder';\nimport {AnnotationFactory} from './annotationFactory';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\nimport {DicomData} from '../app/dataController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Create a View from a DICOM buffer.\n */\nexport class DicomBufferToView {\n\n /**\n * Converter options.\n *\n * @type {object}\n */\n #options;\n\n /**\n * Set the converter options.\n *\n * @param {object} opt The input options.\n */\n setOptions(opt) {\n this.#options = opt;\n }\n\n /**\n * Pixel buffer decoder.\n * Define only once to allow optional asynchronous mode.\n *\n * @type {object}\n */\n #pixelDecoder = null;\n\n // local tmp storage\n #dicomParserStore = [];\n #finalBufferStore = [];\n #decompressedSizes = [];\n #factories = [];\n\n /**\n * Get the factory associated to input DICOM elements.\n *\n * @param {Object} elements The DICOM elements.\n * @returns {ImageFactory|MaskFactory|AnnotationFactory|undefined}\n * The associated factory.\n */\n #getFactory(elements) {\n let factory;\n const modalityElement = elements['00080060'];\n if (typeof modalityElement !== 'undefined') {\n const modality = modalityElement.value[0];\n if (modality === 'SEG') {\n // mask factory for DICOM SEG\n factory = new MaskFactory();\n } else if (modality === 'SR') {\n // annotation factory for DICOM SR\n factory = new AnnotationFactory();\n }\n }\n // image factory for pixel data\n if (typeof factory === 'undefined') {\n const pixelElement = elements['7FE00010'];\n if (typeof pixelElement !== 'undefined') {\n factory = new ImageFactory();\n }\n }\n return factory;\n }\n\n /**\n * Generate the data object.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #generateData(index, origin) {\n const dataElements = this.#dicomParserStore[index].getDicomElements();\n const factory = this.#factories[index];\n // exit if no factory\n if (typeof factory === 'undefined') {\n return;\n }\n // create data\n try {\n const data = new DicomData(dataElements);\n if (factory instanceof AnnotationFactory) {\n data.annotationGroup = factory.create(dataElements);\n } else {\n data.image = factory.create(\n dataElements,\n this.#finalBufferStore[index],\n this.#options.numberOfFiles);\n }\n // call onloaditem\n this.onloaditem({\n data: data,\n source: origin,\n warn: factory.getWarning()\n });\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n }\n\n /**\n * Generate the image object from an uncompressed buffer.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #generateImageUncompressed(index, origin) {\n // send progress\n this.onprogress({\n lengthComputable: true,\n loaded: 100,\n total: 100,\n index: index,\n source: origin\n });\n // generate image\n this.#generateData(index, origin);\n // send load events\n this.onload({\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n\n /**\n * Generate the image object from an compressed buffer.\n *\n * @param {number} index The data index.\n * @param {Array} pixelBuffer The dicom parser.\n * @param {string} algoName The compression algorithm name.\n */\n #generateImageCompressed(index, pixelBuffer, algoName) {\n const dicomParser = this.#dicomParserStore[index];\n\n // gather pixel buffer meta data\n const bitsAllocated =\n dicomParser.getDicomElements()['00280100'].value[0];\n const pixelRepresentation =\n dicomParser.getDicomElements()['00280103'].value[0];\n const pixelMeta = {\n bitsAllocated: bitsAllocated,\n isSigned: (pixelRepresentation === 1)\n };\n const columnsElement = dicomParser.getDicomElements()['00280011'];\n const rowsElement = dicomParser.getDicomElements()['00280010'];\n if (typeof columnsElement !== 'undefined' &&\n typeof rowsElement !== 'undefined') {\n pixelMeta.sliceSize = columnsElement.value[0] * rowsElement.value[0];\n }\n const samplesPerPixelElement =\n dicomParser.getDicomElements()['00280002'];\n if (typeof samplesPerPixelElement !== 'undefined') {\n pixelMeta.samplesPerPixel = samplesPerPixelElement.value[0];\n }\n const planarConfigurationElement =\n dicomParser.getDicomElements()['00280006'];\n if (typeof planarConfigurationElement !== 'undefined') {\n pixelMeta.planarConfiguration = planarConfigurationElement.value[0];\n }\n\n const numberOfItems = pixelBuffer.length;\n\n // setup the decoder (one decoder per all converts)\n if (this.#pixelDecoder === null) {\n this.#pixelDecoder = new PixelBufferDecoder(\n algoName, numberOfItems);\n // callbacks\n // pixelDecoder.ondecodestart: nothing to do\n this.#pixelDecoder.ondecodeditem = (event) => {\n this.#onDecodedItem(event);\n // send onload and onloadend when all items have been decoded\n if (event.itemNumber + 1 === event.numberOfItems) {\n this.onload(event);\n this.onloadend(event);\n }\n };\n // pixelDecoder.ondecoded: nothing to do\n // pixelDecoder.ondecodeend: nothing to do\n this.#pixelDecoder.onerror = this.onerror;\n this.#pixelDecoder.onabort = this.onabort;\n }\n\n // launch decode\n for (let i = 0; i < numberOfItems; ++i) {\n this.#pixelDecoder.decode(pixelBuffer[i], pixelMeta,\n {\n itemNumber: i,\n numberOfItems: numberOfItems,\n index: index\n }\n );\n }\n }\n\n /**\n * Handle a decoded item event.\n *\n * @param {object} event The decoded item event.\n */\n #onDecodedItem(event) {\n // send progress\n this.onprogress({\n lengthComputable: true,\n loaded: event.itemNumber + 1,\n total: event.numberOfItems,\n index: event.index,\n source: origin\n });\n\n const dataIndex = event.index;\n\n // store decoded data\n const decodedData = event.data[0];\n if (event.numberOfItems !== 1) {\n // allocate buffer if not done yet\n if (typeof this.#decompressedSizes[dataIndex] === 'undefined') {\n this.#decompressedSizes[dataIndex] = decodedData.length;\n const fullSize = event.numberOfItems *\n this.#decompressedSizes[dataIndex];\n try {\n this.#finalBufferStore[dataIndex] =\n new decodedData.constructor(fullSize);\n } catch (error) {\n if (error instanceof RangeError) {\n const powerOf2 = Math.floor(Math.log(fullSize) / Math.log(2));\n logger.error('Cannot allocate ' +\n decodedData.constructor.name +\n ' of size: ' +\n fullSize + ' (>2^' + powerOf2 + ') for decompressed data.');\n }\n // abort\n this.#pixelDecoder.abort();\n // send events\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n // exit\n return;\n }\n }\n // hoping for all items to have the same size...\n if (decodedData.length !== this.#decompressedSizes[dataIndex]) {\n logger.warn('Unsupported varying decompressed data size: ' +\n decodedData.length + ' != ' + this.#decompressedSizes[dataIndex]);\n }\n // set buffer item data\n this.#finalBufferStore[dataIndex].set(\n decodedData, this.#decompressedSizes[dataIndex] * event.itemNumber);\n } else {\n this.#finalBufferStore[dataIndex] = decodedData;\n }\n\n // create image for the first item\n if (event.itemNumber === 0) {\n this.#generateData(dataIndex, origin);\n }\n }\n\n /**\n * Handle non image data.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #handleNonImageData(index, origin) {\n this.#generateData(index, origin);\n // send load events\n this.onload({\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n\n /**\n * Handle image data.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #handleImageData(index, origin) {\n const dicomParser = this.#dicomParserStore[index];\n\n const pixelBuffer = dicomParser.getDicomElements()['7FE00010'].value;\n // help GC: discard pixel buffer from elements\n dicomParser.getDicomElements()['7FE00010'].value = [];\n this.#finalBufferStore[index] = pixelBuffer[0];\n\n // transfer syntax (always there)\n const syntax = dicomParser.getDicomElements()['00020010'].value[0];\n const algoName = getSyntaxDecompressionName(syntax);\n const needDecompression = typeof algoName !== 'undefined';\n\n if (needDecompression) {\n // generate image\n this.#generateImageCompressed(\n index,\n pixelBuffer,\n algoName);\n } else {\n this.#generateImageUncompressed(index, origin);\n }\n }\n\n /**\n * Get data from an input buffer using a DICOM parser.\n *\n * @param {ArrayBuffer} buffer The input data buffer.\n * @param {string} origin The data origin.\n * @param {number} dataIndex The data index.\n */\n convert(buffer, origin, dataIndex) {\n // start event\n this.onloadstart({\n source: origin,\n index: dataIndex\n });\n\n // DICOM parser\n const dicomParser = new DicomParser();\n\n if (typeof this.#options.defaultCharacterSet !== 'undefined') {\n dicomParser.setDefaultCharacterSet(this.#options.defaultCharacterSet);\n }\n // parse the buffer\n let factory;\n try {\n dicomParser.parse(buffer);\n // check elements\n factory = this.#getFactory(dicomParser.getDicomElements());\n if (typeof factory !== 'undefined') {\n factory.checkElements(dicomParser.getDicomElements());\n }\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n return;\n }\n\n // store\n this.#dicomParserStore[dataIndex] = dicomParser;\n this.#factories[dataIndex] = factory;\n\n // handle parsed data\n if (factory instanceof AnnotationFactory) {\n this.#handleNonImageData(dataIndex, origin);\n } else {\n this.#handleImageData(dataIndex, origin);\n }\n }\n\n /**\n * Abort a conversion.\n */\n abort() {\n // abort decoding, will trigger pixelDecoder.onabort\n if (this.#pixelDecoder) {\n this.#pixelDecoder.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class DicomBufferToView\n","import {MultiProgressHandler} from '../utils/progress';\nimport {loaderList} from './loaderList';\n\n/**\n * Memory loader.\n */\nexport class MemoryLoader {\n\n /**\n * Input data.\n *\n * @type {Array}\n */\n #inputData = null;\n\n /**\n * Data loader.\n *\n * @type {object}\n */\n #runningLoader = null;\n\n /**\n * Number of loaded data.\n *\n * @type {number}\n */\n #nLoad = 0;\n\n /**\n * Number of load end events.\n *\n * @type {number}\n */\n #nLoadend = 0;\n\n /**\n * The default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Store the current input.\n *\n * @param {object} data The input data.\n */\n #storeInputData(data) {\n this.#inputData = data;\n // reset counters\n this.#nLoad = 0;\n this.#nLoadend = 0;\n // clear storage\n this.#clearStoredLoader();\n }\n\n /**\n * Store the launched loader.\n *\n * @param {object} loader The launched loader.\n */\n #storeLoader(loader) {\n this.#runningLoader = loader;\n }\n\n /**\n * Clear the stored loader.\n *\n */\n #clearStoredLoader() {\n this.#runningLoader = null;\n }\n\n /**\n * Increment the number of loaded data\n * and call onload if loaded all data.\n *\n * @param {object} _event The load data event.\n */\n #addLoad = (_event) => {\n this.#nLoad++;\n // call onload when all is loaded\n // (not using the input event since it is not the\n // general load)\n if (this.#nLoad === this.#inputData.length) {\n this.onload({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Increment the counter of load end events\n * and run callbacks when all done, erroneus or not.\n *\n * @param {object} _event The load end event.\n */\n #addLoadend = (_event) => {\n this.#nLoadend++;\n // call onloadend when all is run\n // (not using the input event since it is not the\n // general load end)\n if (this.#nLoadend === this.#inputData.length) {\n this.onloadend({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Load a list of buffers.\n *\n * @param {Array} data The list of buffers to load.\n */\n load(data) {\n // check input\n if (typeof data === 'undefined' || data.length === 0) {\n return;\n }\n this.#storeInputData(data);\n\n // send start event\n this.onloadstart({\n source: data\n });\n\n // create prgress handler\n const mproghandler = new MultiProgressHandler(this.onprogress);\n mproghandler.setNToLoad(data.length);\n mproghandler.setNumberOfDimensions(1);\n\n // create loaders\n const loaders = [];\n for (let m = 0; m < loaderList.length; ++m) {\n loaders.push(new loaderList[m]());\n }\n\n // find an appropriate loader\n let dataElement = data[0];\n let loader = null;\n let foundLoader = false;\n for (let l = 0; l < loaders.length; ++l) {\n loader = loaders[l];\n if (loader.canLoadMemory(dataElement)) {\n foundLoader = true;\n // load options\n loader.setOptions({\n numberOfFiles: data.length,\n defaultCharacterSet: this.getDefaultCharacterSet()\n });\n // set loader callbacks\n // loader.onloadstart: nothing to do\n loader.onprogress = mproghandler.getUndefinedMonoProgressHandler(0);\n loader.onloaditem = this.onloaditem;\n loader.onload = this.#addLoad;\n loader.onloadend = this.#addLoadend;\n loader.onerror = this.onerror;\n loader.onabort = this.onabort;\n\n // store loader\n this.#storeLoader(loader);\n // exit\n break;\n }\n }\n if (!foundLoader) {\n throw new Error('No loader found for data: ' + dataElement.filename);\n }\n\n // loop on I/O elements\n for (let i = 0; i < data.length; ++i) {\n dataElement = data[i];\n // check loader\n if (!loader.canLoadMemory(dataElement)) {\n throw new Error('Input data of different type: ' +\n dataElement.filename);\n }\n // read\n loader.load(dataElement.data, dataElement.filename, i);\n }\n }\n\n /**\n * Abort a load.\n */\n abort() {\n // abort loader\n if (this.#runningLoader && this.#runningLoader.isLoading()) {\n this.#runningLoader.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class MemoryLoader\n","import {Size} from '../image/size';\nimport {Spacing} from '../image/spacing';\nimport {Geometry} from '../image/geometry';\nimport {Image} from '../image/image';\nimport {Point3D} from '../math/point';\n\n/**\n * Create a simple array buffer from an ImageData buffer.\n *\n * @param {object} imageData The ImageData taken from a context.\n * @returns {Uint8Array} The image buffer.\n */\nfunction imageDataToBuffer(imageData) {\n // remove alpha\n // TODO support passing the full image data\n const dataLen = imageData.data.length;\n const buffer = new Uint8Array((dataLen / 4) * 3);\n let j = 0;\n for (let i = 0; i < dataLen; i += 4) {\n buffer[j] = imageData.data[i];\n buffer[j + 1] = imageData.data[i + 1];\n buffer[j + 2] = imageData.data[i + 2];\n j += 3;\n }\n return buffer;\n}\n\n/**\n * Get an image from an input context imageData.\n *\n * @param {number} width The width of the coresponding image.\n * @param {number} height The height of the coresponding image.\n * @param {number} sliceIndex The slice index of the imageData.\n * @param {object} imageBuffer The image buffer.\n * @param {number} numberOfFrames The final number of frames.\n * @param {string} imageUid The image UID.\n * @returns {object} The corresponding view.\n */\nfunction getDefaultImage(\n width, height, sliceIndex,\n imageBuffer, numberOfFrames,\n imageUid) {\n // image size\n const imageSize = new Size([width, height, 1]);\n // default spacing\n // TODO: misleading...\n const imageSpacing = new Spacing([1, 1, 1]);\n // default origin\n const origin = new Point3D(0, 0, sliceIndex);\n // create image\n const geometry = new Geometry(origin, imageSize, imageSpacing);\n const image = new Image(geometry, imageBuffer, [imageUid]);\n image.setPhotometricInterpretation('RGB');\n // meta information\n const meta = {};\n meta.BitsStored = 8;\n if (typeof numberOfFrames !== 'undefined') {\n meta.numberOfFiles = numberOfFrames;\n }\n image.setMeta(meta);\n // return\n return image;\n}\n\n/**\n * Get data from an input image using a canvas.\n *\n * @param {HTMLImageElement} domImage The DOM Image,\n * an HTMLImageElement with extra info.\n * @param {string|File} origin The data origin.\n * @param {number} index The data index.\n * @returns {object} A load data event.\n */\nexport function getViewFromDOMImage(domImage, origin, index) {\n // image size\n const width = domImage.width;\n const height = domImage.height;\n\n // draw the image in the canvas in order to get its data\n const canvas = document.createElement('canvas');\n canvas.width = width;\n canvas.height = height;\n const ctx = canvas.getContext('2d');\n ctx.drawImage(domImage, 0, 0);\n // get the image data\n const imageData = ctx.getImageData(0, 0, width, height);\n\n // image properties\n const info = {};\n if (typeof origin === 'string') {\n info['origin'] = {value: origin};\n } else {\n info['fileName'] = {value: origin.name};\n info['fileType'] = {value: origin.type};\n info['fileLastModifiedDate'] = {value: origin.lastModified};\n }\n info['imageWidth'] = {value: width};\n info['imageHeight'] = {value: height};\n\n const sliceIndex = index ? index : 0;\n info['imageUid'] = {value: sliceIndex};\n\n // create view\n const imageBuffer = imageDataToBuffer(imageData);\n const image = getDefaultImage(\n width, height, sliceIndex, imageBuffer, 1, sliceIndex.toString());\n\n // return\n return {\n data: {\n image: image,\n info: info\n },\n source: origin\n };\n}\n\n/**\n * Get data from an input image using a canvas.\n *\n * @param {object} video The DOM Video, an HTMLVideoElement with extra info.\n * @param {Function} onloaditem On load callback.\n * @param {object} onload The function to call once the data is loaded.\n * @param {object} onprogress The function to call to report progress.\n * @param {object} onloadend The function to call to report load end.\n * @param {string|File} origin The data origin.\n * @param {number} dataIndex The data index.\n */\nexport function getViewFromDOMVideo(\n video, onloaditem, onload, onprogress, onloadend,\n origin, dataIndex) {\n // video size\n const width = video.videoWidth;\n const height = video.videoHeight;\n\n // default frame rate...\n const frameRate = 30;\n // number of frames\n const numberOfFrames = Math.ceil(video.duration * frameRate);\n\n // video properties\n const info = {};\n if (typeof origin === 'string') {\n info['origin'] = {value: origin};\n } else {\n info['fileName'] = {value: origin.name};\n info['fileType'] = {value: origin.type};\n info['fileLastModifiedDate'] = {value: origin.lastModified};\n }\n info['imageWidth'] = {value: width};\n info['imageHeight'] = {value: height};\n info['numberOfFrames'] = {value: numberOfFrames};\n info['imageUid'] = {value: 0};\n\n // draw the image in the canvas in order to get its data\n const canvas = document.createElement('canvas');\n canvas.width = width;\n canvas.height = height;\n const ctx = canvas.getContext('2d');\n\n // using seeked to loop through all video frames\n video.addEventListener('seeked', onseeked, false);\n\n // current frame index\n let frameIndex = 0;\n // video image\n let image = null;\n\n /**\n * Draw the context and store it as a frame.\n */\n function storeFrame() {\n // send progress\n onprogress({\n lengthComputable: true,\n loaded: frameIndex,\n total: numberOfFrames,\n index: dataIndex,\n source: origin\n });\n // draw image\n ctx.drawImage(video, 0, 0);\n // context to image buffer\n const imgBuffer = imageDataToBuffer(\n ctx.getImageData(0, 0, width, height));\n if (frameIndex === 0) {\n // create view\n image = getDefaultImage(\n width, height, 1, imgBuffer, numberOfFrames, dataIndex.toString());\n // call callback\n onloaditem({\n data: {\n image: image,\n info: info\n },\n source: origin\n });\n } else {\n image.appendFrameBuffer(imgBuffer, frameIndex);\n }\n // increment index\n ++frameIndex;\n }\n\n let nextTime = 0;\n\n /**\n * Handle seeked event.\n *\n * @param {object} event The seeked event.\n */\n function onseeked(event) {\n // store\n storeFrame();\n // set the next time\n // (not using currentTime, it seems to get offseted)\n nextTime += 1 / frameRate;\n if (nextTime <= event.target.duration) {\n this.currentTime = nextTime;\n } else {\n onload({\n source: origin\n });\n onloadend({\n source: origin\n });\n // stop listening\n video.removeEventListener('seeked', onseeked);\n }\n }\n\n // trigger the first seek\n video.currentTime = nextTime;\n}\n","import {DicomDataLoader} from './dicomDataLoader';\nimport {JSONTextLoader} from './jsonTextLoader';\nimport {MultipartLoader} from './multipartLoader';\nimport {RawImageLoader} from './rawImageLoader';\nimport {RawVideoLoader} from './rawVideoLoader';\nimport {ZipLoader} from './zipLoader';\n\nexport const loaderList = [\n DicomDataLoader,\n JSONTextLoader,\n MultipartLoader,\n RawImageLoader,\n RawVideoLoader,\n ZipLoader\n];\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\nimport {DicomBufferToView} from '../image/dicomBufferToView';\n\n/**\n * DICOM data loader.\n */\nexport class DicomDataLoader {\n\n /**\n * Loader options.\n *\n * @type {object}\n */\n #options = {};\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} opt The input options.\n */\n setOptions(opt) {\n this.#options = opt;\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n /**\n * DICOM buffer to View (asynchronous).\n *\n */\n #db2v = new DicomBufferToView();\n\n /**\n * Load data.\n *\n * @param {object} buffer The DICOM buffer.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // setup db2v ony once\n if (!this.#isLoading) {\n // pass options\n this.#db2v.setOptions(this.#options);\n // connect handlers\n this.#db2v.onloadstart = this.onloadstart;\n this.#db2v.onprogress = this.onprogress;\n this.#db2v.onloaditem = this.onloaditem;\n this.#db2v.onload = this.onload;\n this.#db2v.onloadend = (event) => {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onloadend(event);\n };\n this.#db2v.onerror = (event) => {\n event.source = origin;\n this.onerror(event);\n };\n this.#db2v.onabort = this.onabort;\n }\n\n // set loading flag\n this.#isLoading = true;\n // convert\n this.#db2v.convert(buffer, origin, index);\n }\n\n /**\n * Abort load.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // abort conversion, will trigger db2v.onabort\n this.#db2v.abort();\n }\n\n /**\n * Check if the loader can load the provided file.\n * True if one of the folowing conditions is true:\n * - the file has a 'dcm' extension,\n * - the file has no extension.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n const ext = getFileExtension(file.name);\n const hasNoExt = (ext === null);\n const hasDcmExt = (ext === 'dcm');\n return hasNoExt || hasDcmExt;\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'dicom',\n * - the `options.requestHeaders` contains a 'Accept: application/dicom',\n * - the url has a 'contentType' and it is 'application/dicom'\n * (as in wado urls),\n * - the url has no 'contentType' and no extension or the extension is 'dcm'.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'dicom') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'application/dicom' and no '+'\n const acceptValue = 'application/dicom';\n return startsWith(acceptHeader.value, acceptValue) &&\n acceptHeader.value[acceptValue.length] !== '+';\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n // extension\n const ext = getFileExtension(urlObjext.pathname);\n const hasNoExt = (ext === null);\n const hasDcmExt = (ext === 'dcm');\n // content type (for wado url)\n const contentType = urlObjext.searchParams.get('contentType');\n const hasContentType = contentType !== null &&\n typeof contentType !== 'undefined';\n const hasDicomContentType = (contentType === 'application/dicom');\n\n return hasContentType ? hasDicomContentType : (hasNoExt || hasDcmExt);\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n const contentType = mem['Content-Type'];\n if (typeof contentType !== 'undefined' &&\n contentType.startsWith('application/dicom')) {\n return true;\n }\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.ArrayBuffer;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The load progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class DicomDataLoader\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * JSON text loader.\n */\nexport class JSONTextLoader {\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n /**\n * Load data.\n *\n * @param {object} text The input text.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(text, origin, index) {\n // set loading flag\n this.#isLoading = true;\n this.onloadstart({\n source: origin\n });\n\n try {\n this.onprogress({\n lengthComputable: true,\n loaded: 100,\n total: 100,\n index: index,\n source: origin\n });\n const data = {\n data: text,\n source: origin\n };\n // only expecting one item\n this.onloaditem(data);\n this.onload(data);\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n } finally {\n // reset loading flag\n this.#isLoading = false;\n this.onloadend({\n source: origin\n });\n }\n }\n\n /**\n * Abort load: pass to listeners.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True if the file has a 'json' extension.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n const ext = getFileExtension(file.name);\n return (ext === 'json');\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'json',\n * - the `options.requestHeaders` contains a 'Accept: application/json' or\n * 'Accept: application/dicom+json',\n * - the url has a 'json' extension.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'json') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'application/json' or 'application/dicom+json\n return startsWith(acceptHeader.value, 'application/json') ||\n startsWith(acceptHeader.value, 'application/dicom+json');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n const ext = getFileExtension(urlObjext.pathname);\n return (ext === 'json');\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n const contentType = mem['Content-Type'];\n if (typeof contentType !== 'undefined' &&\n contentType.startsWith('application/json')) {\n return true;\n }\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.Text;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.Text;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The load progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class JSONTextLoader\n","import {startsWith} from '../utils/string';\nimport {parseMultipart} from '../utils/array';\nimport {MemoryLoader} from './memoryLoader';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * Multipart data loader.\n */\nexport class MultipartLoader {\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n /**\n * Load data.\n *\n * @param {object} buffer The DICOM buffer.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // send start event\n this.onloadstart({\n source: origin\n });\n // set loading flag\n this.#isLoading = true;\n\n const memoryIO = new MemoryLoader();\n // memoryIO.onloadstart: nothing to do\n memoryIO.onprogress = (progress) => {\n // add 50% to take into account the un-Multipartping\n progress.loaded = 50 + progress.loaded / 2;\n // set data index\n progress.index = index;\n this.onprogress(progress);\n };\n memoryIO.onloaditem = this.onloaditem;\n memoryIO.onload = this.onload;\n memoryIO.onloadend = (event) => {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onloadend(event);\n };\n memoryIO.onerror = this.onerror;\n memoryIO.onabort = this.onabort;\n // launch\n memoryIO.load(parseMultipart(buffer));\n }\n\n /**\n * Abort load: pass to listeners.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * Always returns false.\n *\n * @param {File} _file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(_file) {\n return false;\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'multipart',\n * - the `options.requestHeaders` contains a 'Accept: multipart/related'.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'multipart') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'multipart/related'\n return startsWith(acceptHeader.value, 'multipart/related');\n }\n }\n }\n\n return false;\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} _mem The memory object.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadMemory(_mem) {\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.ArrayBuffer;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class MultipartLoader\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {getViewFromDOMImage} from '../image/domReader';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * Raw image loader.\n */\nexport class RawImageLoader {\n\n /**\n * If abort is triggered, all image.onload callbacks have to be cancelled.\n *\n * @type {boolean}\n */\n #aborted = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing? TODO...\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return true;\n }\n\n /**\n * Create a Data URI from an HTTP request response.\n *\n * @param {ArrayBuffer} response The HTTP request response.\n * @param {string} dataType The data type.\n * @returns {string} The data URI.\n */\n #createDataUri(response, dataType) {\n // image type\n let imageType = dataType;\n if (!imageType || imageType === 'jpg') {\n imageType = 'jpeg';\n }\n // create uri\n const file = new Blob([response], {type: 'image/' + imageType});\n return window.URL.createObjectURL(file);\n }\n\n /**\n * Load data.\n *\n * @param {ArrayBuffer|string} buffer The read data.\n * @param {string|File} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n this.#aborted = false;\n // create a DOM image\n const image = new Image();\n // triggered by ctx.drawImage\n image.onload = (/*event*/) => {\n try {\n if (!this.#aborted) {\n this.onprogress({\n lengthComputable: true,\n loaded: 100,\n total: 100,\n index: index,\n source: origin\n });\n const data = getViewFromDOMImage(image, origin, index);\n // only expecting one item\n this.onloaditem(data);\n this.onload(data);\n }\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n } finally {\n this.onloadend({\n source: origin\n });\n }\n };\n // storing values to pass them on\n if (typeof buffer === 'string') {\n // file case\n image.src = buffer;\n } else if (typeof origin === 'string') {\n // url case\n const ext = origin.split('.').pop().toLowerCase();\n image.src = this.#createDataUri(buffer, ext);\n }\n }\n\n /**\n * Abort load.\n */\n abort() {\n this.#aborted = true;\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True for files with type 'image.*'.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n return (typeof file.type !== 'undefined' &&\n file.type.match('image.*') !== null);\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'rawimage',\n * - the `options.requestHeaders` contains an item\n * starting with 'Accept: image/'.\n * - the url has a 'contentType' and it is 'image/jpeg', 'image/png'\n * or 'image/gif' (as in wado urls),\n * - the url has no 'contentType' and the extension is 'jpeg', 'jpg',\n * 'png' or 'gif'.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'rawimage') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'image/'\n return startsWith(acceptHeader.value, 'image/');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n // extension\n const ext = getFileExtension(urlObjext.pathname);\n const hasImageExt = (ext === 'jpeg') || (ext === 'jpg') ||\n (ext === 'png') || (ext === 'gif');\n // content type (for wado url)\n const contentType = urlObjext.searchParams.get('contentType');\n const hasContentType = contentType !== null &&\n typeof contentType !== 'undefined';\n const hasImageContentType = (contentType === 'image/jpeg') ||\n (contentType === 'image/png') ||\n (contentType === 'image/gif');\n\n return hasContentType ? hasImageContentType : hasImageExt;\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.DataURL;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class RawImageLoader","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {getViewFromDOMVideo} from '../image/domReader';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * Raw video loader.\n *\n * Url example (cors enabled):\n * {@link https://raw.githubusercontent.com/clappr/clappr/master/test/fixtures/SampleVideo_360x240_1mb.mp4}.\n */\nexport class RawVideoLoader {\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing? TODO...\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return true;\n }\n\n /**\n * Create a Data URI from an HTTP request response.\n *\n * @param {object} response The HTTP request response.\n * @param {string} dataType The data type.\n * @returns {string} The data URI.\n */\n #createDataUri(response, dataType) {\n // image data as string\n const bytes = new Uint8Array(response);\n let videoDataStr = '';\n for (let i = 0; i < bytes.byteLength; ++i) {\n videoDataStr += String.fromCharCode(bytes[i]);\n }\n // create uri\n const uri = 'data:video/' + dataType +\n ';base64,' + window.btoa(videoDataStr);\n return uri;\n }\n\n /**\n * Internal Data URI load.\n *\n * @param {object} buffer The read data.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // create a DOM video\n const video = document.createElement('video');\n if (typeof origin === 'string') {\n // url case\n const ext = origin.split('.').pop().toLowerCase();\n video.src = this.#createDataUri(buffer, ext);\n } else {\n video.src = buffer;\n }\n // onload handler\n video.onloadedmetadata = (event) => {\n try {\n getViewFromDOMVideo(event.target,\n this.onloaditem, this.onload,\n this.onprogress, this.onloadend,\n origin, index);\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n };\n }\n\n /**\n * Abort load.\n */\n abort() {\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True for files with type 'video.*'.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n return (typeof file.type !== 'undefined' &&\n file.type.match('video.*') !== null);\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'rawvideo',\n * - the `options.requestHeaders` contains an item\n * starting with 'Accept: video/'.\n * - the url has a 'mp4', 'ogg' or 'webm' extension.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'rawvideo') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'video/'\n return startsWith(acceptHeader.value, 'video/');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n const ext = getFileExtension(urlObjext.pathname);\n return (ext === 'mp4') ||\n (ext === 'ogg') ||\n (ext === 'webm');\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.DataURL;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class RawVideoLoader\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\nimport {MemoryLoader} from './memoryLoader';\n\n/**\n * The zip library.\n *\n * Ref: {@link https://github.com/Stuk/jszip}.\n *\n * @external JSZip\n */\nimport JSZip from 'jszip';\n\n/**\n * ZIP data loader.\n */\nexport class ZipLoader {\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n #filename = '';\n #files = [];\n #zobjs = null;\n\n /**\n * JSZip.async callback.\n *\n * @param {ArrayBuffer} content Unzipped file image.\n * @param {object} origin The origin of the file.\n * @param {number} index The data index.\n */\n #zipAsyncCallback(content, origin, index) {\n this.#files.push({filename: this.#filename, data: content});\n\n // sent un-ziped progress with the data index\n // (max 50% to take into account the memory loading)\n const unzipPercent = this.#files.length * 100 / this.#zobjs.length;\n this.onprogress({\n lengthComputable: true,\n loaded: (unzipPercent / 2),\n total: 100,\n index: index,\n item: {\n loaded: unzipPercent,\n total: 100,\n source: origin\n }\n });\n\n // recursively call until we have all the files\n if (this.#files.length < this.#zobjs.length) {\n const num = this.#files.length;\n this.#filename = this.#zobjs[num].name;\n this.#zobjs[num].async('arrayBuffer').then((content) => {\n this.#zipAsyncCallback(content, origin, index);\n });\n } else {\n const memoryIO = new MemoryLoader();\n // memoryIO.onloadstart: nothing to do\n memoryIO.onprogress = (progress) => {\n // add 50% to take into account the un-zipping\n progress.loaded = 50 + progress.loaded / 2;\n // set data index\n progress.index = index;\n this.onprogress(progress);\n };\n memoryIO.onloaditem = this.onloaditem;\n memoryIO.onload = this.onload;\n memoryIO.onloadend = (event) => {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onloadend(event);\n };\n memoryIO.onerror = this.onerror;\n memoryIO.onabort = this.onabort;\n // launch\n memoryIO.load(this.#files);\n }\n }\n\n /**\n * Load data.\n *\n * @param {object} buffer The DICOM buffer.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // send start event\n this.onloadstart({\n source: origin\n });\n // set loading flag\n this.#isLoading = true;\n\n JSZip.loadAsync(buffer).then((zip) => {\n this.#files = [];\n this.#zobjs = zip.file(/.*\\.dcm/);\n // recursively load zip files into the files array\n const num = this.#files.length;\n this.#filename = this.#zobjs[num].name;\n this.#zobjs[num].async('arrayBuffer').then((content) => {\n this.#zipAsyncCallback(content, origin, index);\n });\n });\n }\n\n /**\n * Abort load: pass to listeners.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True if the file has a 'zip' extension.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n const ext = getFileExtension(file.name);\n return (ext === 'zip');\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'zip',\n * - the `options.requestHeaders` contains an item\n * starting with 'Accept: application/zip'.\n * - the url has a 'zip' extension.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'zip') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'application/zip'\n return startsWith(acceptHeader.value, 'application/zip');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n const ext = getFileExtension(urlObjext.pathname);\n return (ext === 'zip');\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n const contentType = mem['Content-Type'];\n if (typeof contentType !== 'undefined' &&\n contentType.startsWith('application/zip')) {\n return true;\n }\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.ArrayBuffer;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class ZipLoader\n","import {MultiProgressHandler} from '../utils/progress';\nimport {loaderList} from './loaderList';\n\n// file content types\nexport const fileContentTypes = {\n Text: 0,\n ArrayBuffer: 1,\n DataURL: 2\n};\n\n/**\n * Files loader.\n */\nexport class FilesLoader {\n\n /**\n * Input data.\n *\n * @type {File[]}\n */\n #inputData = null;\n\n /**\n * Array of launched file readers.\n *\n * @type {FileReader[]}\n */\n #readers = [];\n\n /**\n * Data loader.\n *\n * @type {object}\n */\n #runningLoader = null;\n\n /**\n * Number of loaded data.\n *\n * @type {number}\n */\n #nLoad = 0;\n\n /**\n * Number of load end events.\n *\n * @type {number}\n */\n #nLoadend = 0;\n\n /**\n * The default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Store the current input.\n *\n * @param {File[]} data The input data.\n */\n #storeInputData(data) {\n this.#inputData = data;\n // reset counters\n this.#nLoad = 0;\n this.#nLoadend = 0;\n // clear storage\n this.#clearStoredReaders();\n this.#clearStoredLoader();\n }\n\n /**\n * Store a launched reader.\n *\n * @param {FileReader} reader The launched reader.\n */\n #storeReader(reader) {\n this.#readers.push(reader);\n }\n\n /**\n * Clear the stored readers.\n *\n */\n #clearStoredReaders() {\n this.#readers = [];\n }\n\n /**\n * Store the launched loader.\n *\n * @param {object} loader The launched loader.\n */\n #storeLoader(loader) {\n this.#runningLoader = loader;\n }\n\n /**\n * Clear the stored loader.\n *\n */\n #clearStoredLoader() {\n this.#runningLoader = null;\n }\n\n /**\n * Increment the number of loaded data\n * and call onload if loaded all data.\n *\n * @param {object} _event The load data event.\n */\n #addLoad = (_event) => {\n this.#nLoad++;\n // call onload when all is loaded\n // (not using the input event since it is\n // an individual load)\n if (this.#nLoad === this.#inputData.length) {\n this.onload({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Increment the counter of load end events\n * and run callbacks when all done, erroneus or not.\n *\n * @param {object} _event The load end event.\n */\n #addLoadend = (_event) => {\n this.#nLoadend++;\n // call onloadend when all is run\n // (not using the input event since it is\n // an individual load end)\n if (this.#nLoadend === this.#inputData.length) {\n this.onloadend({\n source: this.#inputData\n });\n }\n };\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Augment a callback event with a srouce.\n *\n * @param {object} callback The callback to augment its event.\n * @param {object} source The source to add to the event.\n * @returns {eventFn} The augmented callback.\n */\n #augmentCallbackEvent(callback, source) {\n return (event) => {\n event.source = source;\n callback(event);\n };\n }\n\n /**\n * Get a load handler for a data element.\n *\n * @param {object} loader The associated loader.\n * @param {File} dataElement The data element.\n * @param {number} i The index of the element.\n * @returns {eventFn} A load handler.\n */\n #getLoadHandler(loader, dataElement, i) {\n return (event) => {\n loader.load(event.target.result, dataElement, i);\n };\n }\n\n\n /**\n * Load a list of files.\n *\n * @param {File[]} data The list of files to load.\n */\n load(data) {\n // check input\n if (typeof data === 'undefined' || data.length === 0) {\n return;\n }\n this.#storeInputData(data);\n\n // send start event\n this.onloadstart({\n source: data\n });\n\n // create prgress handler\n const mproghandler = new MultiProgressHandler(this.onprogress);\n mproghandler.setNToLoad(data.length);\n\n // create loaders\n const loaders = [];\n for (let m = 0; m < loaderList.length; ++m) {\n loaders.push(new loaderList[m]());\n }\n\n // find an appropriate loader\n let dataElement = data[0];\n let loader = null;\n let foundLoader = false;\n for (let l = 0; l < loaders.length; ++l) {\n loader = loaders[l];\n if (loader.canLoadFile(dataElement)) {\n foundLoader = true;\n // load options\n loader.setOptions({\n numberOfFiles: data.length,\n defaultCharacterSet: this.getDefaultCharacterSet()\n });\n // set loader callbacks\n // loader.onloadstart: nothing to do\n loader.onprogress = mproghandler.getUndefinedMonoProgressHandler(1);\n loader.onloaditem = this.onloaditem;\n loader.onload = this.#addLoad;\n loader.onloadend = this.#addLoadend;\n loader.onerror = this.onerror;\n loader.onabort = this.onabort;\n\n // store loader\n this.#storeLoader(loader);\n // exit\n break;\n }\n }\n if (!foundLoader) {\n throw new Error('No loader found for file: ' + dataElement.name);\n }\n\n // loop on I/O elements\n for (let i = 0; i < data.length; ++i) {\n dataElement = data[i];\n\n // check loader\n if (!loader.canLoadFile(dataElement)) {\n throw new Error('Input file of different type: ' + dataElement);\n }\n\n /**\n * The file reader.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/FileReader}.\n *\n * @external FileReader\n */\n const reader = new FileReader();\n // store reader\n this.#storeReader(reader);\n\n // set reader callbacks\n // reader.onloadstart: nothing to do\n reader.onprogress = this.#augmentCallbackEvent(\n mproghandler.getMonoProgressHandler(i, 0), dataElement);\n reader.onload = this.#getLoadHandler(loader, dataElement, i);\n // reader.onloadend: nothing to do\n const errorCallback =\n this.#augmentCallbackEvent(this.onerror, dataElement);\n reader.onerror = (event) => {\n this.#addLoadend();\n errorCallback(event);\n };\n const abortCallback =\n this.#augmentCallbackEvent(this.onabort, dataElement);\n reader.onabort = (event) => {\n this.#addLoadend();\n abortCallback(event);\n };\n // read\n if (loader.loadFileAs() === fileContentTypes.Text) {\n reader.readAsText(dataElement);\n } else if (loader.loadFileAs() === fileContentTypes.DataURL) {\n reader.readAsDataURL(dataElement);\n } else if (loader.loadFileAs() === fileContentTypes.ArrayBuffer) {\n reader.readAsArrayBuffer(dataElement);\n }\n }\n }\n\n /**\n * Abort a load.\n */\n abort() {\n // abort readers\n for (let i = 0; i < this.#readers.length; ++i) {\n // 0: EMPTY, 1: LOADING, 2: DONE\n if (this.#readers[i].readyState === 1) {\n this.#readers[i].abort();\n }\n }\n // abort loader\n if (this.#runningLoader && this.#runningLoader.isLoading()) {\n this.#runningLoader.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class FilesLoader\n","import {FilesLoader} from '../io/filesLoader';\nimport {MemoryLoader} from '../io/memoryLoader';\nimport {UrlsLoader} from '../io/urlsLoader';\n\n/**\n * Load controller.\n */\nexport class LoadController {\n\n /**\n * The default character set.\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * List of current loaders.\n *\n * @type {object}\n */\n #currentLoaders = {};\n\n /**\n * @param {string} defaultCharacterSet The default character set.\n */\n constructor(defaultCharacterSet) {\n this.#defaultCharacterSet = defaultCharacterSet;\n }\n\n /**\n * Load a list of files. Can be image files or a state file.\n *\n * @param {File[]} files The list of files to load.\n * @param {string} dataId The data Id.\n */\n loadFiles(files, dataId) {\n // has been checked for emptiness.\n const ext = files[0].name.split('.').pop().toLowerCase();\n if (ext === 'json') {\n this.#loadStateFile(files[0], dataId);\n } else {\n this.#loadImageFiles(files, dataId);\n }\n }\n\n /**\n * Load a list of URLs. Can be image files or a state file.\n *\n * @param {string[]} urls The list of urls to load.\n * @param {string} dataId The data Id.\n * @param {object} [options] The load options:\n * - requestHeaders: an array of {name, value} to use as request headers.\n * - withCredentials: credentials flag to pass to the request.\n */\n\n loadURLs(urls, dataId, options) {\n // has been checked for emptiness.\n const ext = urls[0].split('.').pop().toLowerCase();\n if (ext === 'json') {\n this.#loadStateUrl(urls[0], dataId, options);\n } else {\n this.#loadImageUrls(urls, dataId, options);\n }\n }\n\n /**\n * Load a list of ArrayBuffers.\n *\n * @param {Array} data The list of ArrayBuffers to load\n * in the form of [{name: '', filename: '', data: data}].\n * @param {string} dataId The data Id.\n */\n loadImageObject(data, dataId) {\n // create IO\n const memoryIO = new MemoryLoader();\n // load data\n this.#loadData(data, memoryIO, 'image', dataId);\n }\n\n /**\n * Get the currently loaded data ids.\n *\n * @returns {string[]} The data ids.\n */\n getLoadingDataIds() {\n return Object.keys(this.#currentLoaders);\n }\n\n /**\n * Abort an individual current loader.\n *\n * @param {string} dataId The data to stop loading.\n */\n abort(dataId) {\n if (typeof this.#currentLoaders[dataId] !== 'undefined') {\n this.#currentLoaders[dataId].loader.abort();\n delete this.#currentLoaders[dataId];\n }\n }\n\n // private ----------------------------------------------------------------\n\n /**\n * Load a list of image files.\n *\n * @param {File[]} files The list of image files to load.\n * @param {string} dataId The data Id.\n */\n #loadImageFiles(files, dataId) {\n // create IO\n const fileIO = new FilesLoader();\n fileIO.setDefaultCharacterSet(this.#defaultCharacterSet);\n // load data\n this.#loadData(files, fileIO, 'image', dataId);\n }\n\n /**\n * Load a list of image URLs.\n *\n * @param {string[]} urls The list of urls to load.\n * @param {string} [dataId] The data Id.\n * @param {object} [options] The load options:\n * - requestHeaders: an array of {name, value} to use as request headers.\n * - withCredentials: credentials flag to pass to the request.\n */\n #loadImageUrls(urls, dataId, options) {\n // create IO\n const urlIO = new UrlsLoader();\n urlIO.setDefaultCharacterSet(this.#defaultCharacterSet);\n // load data\n this.#loadData(urls, urlIO, 'image', dataId, options);\n }\n\n /**\n * Load a State file.\n *\n * @param {File} file The state file to load.\n * @param {string} dataId The data Id.\n */\n #loadStateFile(file, dataId) {\n // create IO\n const fileIO = new FilesLoader();\n // load data\n this.#loadData([file], fileIO, 'state', dataId);\n }\n\n\n /**\n * Load a State url.\n *\n * @param {string} url The state url to load.\n * @param {string} [dataId] The data Id.\n * @param {object} [options] The load options:\n * - requestHeaders: an array of {name, value} to use as request headers.\n * - withCredentials: credentials flag to pass to the request.\n */\n #loadStateUrl(url, dataId, options) {\n // create IO\n const urlIO = new UrlsLoader();\n // load data\n this.#loadData([url], urlIO, 'state', dataId, options);\n }\n\n /**\n * Load a list of data.\n *\n * @param {string[]|File[]|Array} data Array of data to load.\n * @param {object} loader The data loader.\n * @param {string} loadType The data load type: 'image' or 'state'.\n * @param {string} dataId The data id.\n * @param {object} [options] Options passed to the final loader.\n */\n #loadData(data, loader, loadType, dataId, options) {\n const eventInfo = {\n loadtype: loadType,\n dataid: dataId\n };\n\n // set callbacks\n loader.onloadstart = (event) => {\n // store loader to allow abort\n this.#currentLoaders[dataId] = {\n loader: loader,\n isFirstItem: true\n };\n // callback\n this.#augmentCallbackEvent(this.onloadstart, eventInfo)(event);\n };\n loader.onprogress = this.#augmentCallbackEvent(this.onprogress, eventInfo);\n loader.onloaditem = (event) => {\n const eventInfoItem = {\n loadtype: loadType,\n dataid: dataId\n };\n if (typeof this.#currentLoaders[dataId] !== 'undefined') {\n eventInfoItem.isfirstitem = this.#currentLoaders[dataId].isFirstItem;\n }\n // callback\n this.#augmentCallbackEvent(this.onloaditem, eventInfoItem)(event);\n // update loader\n if (typeof this.#currentLoaders[dataId] !== 'undefined' &&\n this.#currentLoaders[dataId].isFirstItem) {\n this.#currentLoaders[dataId].isFirstItem = false;\n }\n };\n loader.onload = this.#augmentCallbackEvent(this.onload, eventInfo);\n loader.onloadend = (event) => {\n // reset current loader\n delete this.#currentLoaders[dataId];\n // callback\n this.#augmentCallbackEvent(this.onloadend, eventInfo)(event);\n };\n loader.onerror = this.#augmentCallbackEvent(this.onerror, eventInfo);\n loader.onabort = this.#augmentCallbackEvent(this.onabort, eventInfo);\n // launch load\n try {\n loader.load(data, options);\n } catch (error) {\n this.onerror({\n error: error,\n dataid: dataId\n });\n this.onloadend({\n dataid: dataId\n });\n return;\n }\n }\n\n /**\n * Augment a callback event: adds loadtype to the event\n * passed to a callback.\n *\n * @param {object} callback The callback to update.\n * @param {object} info Info object to append to the event.\n * @returns {object} A function representing the modified callback.\n */\n #augmentCallbackEvent(callback, info) {\n return function (event) {\n const keys = Object.keys(info);\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n event[key] = info[key];\n }\n callback(event);\n };\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when an item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class LoadController\n","import {ListenerHandler} from '../utils/listen';\nimport {getReverseOrientation} from '../dicom/dicomParser';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get a number toprecision function with the provided precision.\n *\n * @param {number} precision The precision to achieve.\n * @returns {Function} The to precision function.\n */\nfunction getNumberToPrecision(precision) {\n return function (num) {\n return Number(num).toPrecision(precision);\n };\n}\n\n/**\n * Create a default replace format from a given length.\n * For example: '{v0}, {v1}'.\n *\n * @param {number} length The length of the format.\n * @returns {string} A replace format.\n */\nfunction createDefaultReplaceFormat(length) {\n let res = '';\n for (let i = 0; i < length; ++i) {\n if (i !== 0) {\n res += ', ';\n }\n res += '{v' + i + '}';\n }\n return res;\n}\n\n/**\n * Replace flags in a input string. Flags are keywords surrounded with curly\n * braces in the form: '{v0}, {v1}'.\n *\n * @param {string} inputStr The input string.\n * @param {string[]} values An array of strings.\n * @example\n * var values = [\"a\", \"b\"];\n * var str = \"The length is: {v0}. The size is: {v1}\";\n * var res = replaceFlags(str, values);\n * // \"The length is: a. The size is: b\"\n * @returns {string} The result string.\n */\nfunction replaceFlags(inputStr, values) {\n let res = inputStr;\n for (let i = 0; i < values.length; ++i) {\n res = res.replace('{v' + i + '}', values[i]);\n }\n return res;\n}\n\n/**\n * DICOM Header overlay info.\n */\nexport class OverlayData {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Associated data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Overlay config.\n *\n * @type {object}\n */\n #configs;\n\n /**\n * List of event used by the config.\n *\n * @type {string[]}\n */\n #eventNames = [];\n\n /**\n * Flag to know if listening to app.\n *\n * @type {boolean}\n */\n #isListening;\n\n /**\n * Overlay data.\n *\n * @type {Array}\n */\n #data = [];\n\n /**\n * Current data uid: set on pos change.\n *\n * @type {number}\n */\n #currentDataUid;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {App} app The associated application.\n * @param {string} dataId The associated data id.\n * @param {object} configs The overlay config.\n */\n constructor(app, dataId, configs) {\n this.#app = app;\n this.#dataId = dataId;\n this.#configs = configs;\n\n // parse overlays to get the list of events to listen to\n const keys = Object.keys(this.#configs);\n for (let i = 0; i < keys.length; ++i) {\n const config = this.#configs[keys[i]];\n for (let j = 0; j < config.length; ++j) {\n const eventType = config[j].event;\n if (typeof eventType !== 'undefined') {\n if (!this.#eventNames.includes(eventType)) {\n this.#eventNames.push(eventType);\n }\n }\n }\n }\n // add app listeners\n this.addAppListeners();\n }\n\n /**\n * Reset the data.\n */\n reset() {\n this.#data = [];\n this.#currentDataUid = undefined;\n }\n\n /**\n * Handle a new loaded item event.\n *\n * @param {object} data The item meta data.\n */\n addItemMeta(data) {\n // create and store overlay data\n let dataUid;\n // check if dicom data (00020010: transfer syntax)\n if (typeof data['00020010'] !== 'undefined') {\n if (typeof data['00080018'] !== 'undefined') {\n // SOP instance UID\n dataUid = data['00080018'].value[0];\n } else {\n dataUid = data.length;\n }\n this.#data[dataUid] = createOverlayData(data, this.#configs);\n } else {\n // image file case\n const keys = Object.keys(data);\n for (let d = 0; d < keys.length; ++d) {\n const obj = data[keys[d]];\n if (keys[d] === 'imageUid') {\n dataUid = obj.value;\n break;\n }\n }\n this.#data[dataUid] = createOverlayDataForDom(data, this.#configs);\n }\n // store uid\n this.#currentDataUid = dataUid;\n }\n\n /**\n * Handle a changed slice event.\n *\n * @param {object} event The slicechange event.\n */\n #onSliceChange = (event) => {\n if (event.dataid !== this.#dataId) {\n return;\n }\n if (typeof event.data !== 'undefined' &&\n typeof event.data.imageUid !== 'undefined' &&\n this.#currentDataUid !== event.data.imageUid) {\n this.#currentDataUid = event.data.imageUid;\n this.#updateData(event);\n }\n };\n\n /**\n * Update the overlay data.\n *\n * @param {object} event An event defined by the overlay map and\n * registered in toggleListeners.\n */\n #updateData = (event) => {\n if (event.dataid !== this.#dataId) {\n return;\n }\n\n const sliceOverlayData = this.#data[this.#currentDataUid];\n if (typeof sliceOverlayData === 'undefined') {\n console.warn('No slice overlay data for: ' + this.#currentDataUid);\n return;\n }\n\n for (let n = 0; n < sliceOverlayData.length; ++n) {\n let text = undefined;\n if (typeof sliceOverlayData[n].tags !== 'undefined') {\n // update tags only on slice change\n if (event.type === 'positionchange') {\n text = sliceOverlayData[n].value;\n }\n } else {\n // update text if the value is an event type\n if (typeof sliceOverlayData[n].event !== 'undefined' &&\n sliceOverlayData[n].event === event.type) {\n const format = sliceOverlayData[n].format;\n let values = event.value;\n // optional number precision\n if (typeof sliceOverlayData[n].precision !== 'undefined') {\n let mapFunc = null;\n if (sliceOverlayData[n].precision === 'round') {\n mapFunc = Math.round;\n } else {\n mapFunc = getNumberToPrecision(sliceOverlayData[n].precision);\n }\n values = values.map(mapFunc);\n }\n text = replaceFlags(format, values);\n }\n }\n if (typeof text !== 'undefined') {\n sliceOverlayData[n].value = text;\n }\n }\n\n // fire valuechange for listeners\n this.#fireEvent({type: 'valuechange', data: sliceOverlayData});\n };\n\n /**\n * Is this class listening to app events.\n *\n * @returns {boolean} True is listening to app events.\n */\n isListening() {\n return this.#isListening;\n }\n\n /**\n * Toggle info listeners.\n */\n addAppListeners() {\n // listen to update tags data\n this.#app.addEventListener('positionchange', this.#onSliceChange);\n // add event listeners\n for (let i = 0; i < this.#eventNames.length; ++i) {\n this.#app.addEventListener(this.#eventNames[i], this.#updateData);\n }\n // update flag\n this.#isListening = true;\n }\n\n /**\n * Toggle info listeners.\n */\n removeAppListeners() {\n // stop listening to update tags data\n this.#app.removeEventListener('positionchange', this.#onSliceChange);\n // remove event listeners\n for (let i = 0; i < this.#eventNames.length; ++i) {\n this.#app.removeEventListener(this.#eventNames[i], this.#updateData);\n }\n // update flag\n this.#isListening = false;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent(event) {\n this.#listenerHandler.fireEvent(event);\n }\n\n} // class OverlayData\n\n/**\n * Create overlay data array for a DICOM image.\n *\n * @param {object} dicomElements DICOM elements of the image.\n * @param {object} configs The overlay data configs.\n * @returns {Array} Overlay data array.\n */\nfunction createOverlayData(dicomElements, configs) {\n const overlays = [];\n let modality;\n const modElement = dicomElements['00080060'];\n if (typeof modElement !== 'undefined') {\n modality = modElement.value[0];\n } else {\n return overlays;\n }\n const config = configs[modality] || configs['*'];\n if (!config) {\n return overlays;\n }\n\n for (let n = 0; n < config.length; ++n) {\n // deep copy\n const overlay = JSON.parse(JSON.stringify(config[n]));\n\n // add tag values\n const tags = overlay.tags;\n if (typeof tags !== 'undefined' && tags.length !== 0) {\n // get values\n const values = [];\n for (let i = 0; i < tags.length; ++i) {\n const elem = dicomElements[tags[i]];\n if (typeof elem !== 'undefined') {\n values.push(dicomElements[tags[i]].value);\n } else {\n values.push('');\n }\n }\n // format\n if (typeof overlay.format === 'undefined' || overlay.format === null) {\n overlay.format = createDefaultReplaceFormat(values.length);\n }\n overlay.value = replaceFlags(overlay.format, values).trim();\n }\n\n // store\n overlays.push(overlay);\n }\n\n // (0020,0020) Patient Orientation\n const poElement = dicomElements['00200020'];\n if (typeof poElement !== 'undefined' &&\n poElement.value.length === 2\n ) {\n const po0 = poElement.value[0];\n const po1 = poElement.value[1];\n overlays.push({\n pos: 'cr', value: po0, format: '{v0}'\n });\n overlays.push({\n pos: 'cl', value: getReverseOrientation(po0), format: '{v0}'\n });\n overlays.push({\n pos: 'bc', value: po1, format: '{v0}'\n });\n overlays.push({\n pos: 'tc', value: getReverseOrientation(po1), format: '{v0}'\n });\n }\n\n return overlays;\n}\n\n/**\n * Create overlay data array for a DOM image.\n *\n * @param {object} info Meta data.\n * @param {object} configs The overlay data configs.\n * @returns {Array} Overlay data array.\n */\nfunction createOverlayDataForDom(info, configs) {\n const overlays = [];\n const config = configs.DOM;\n if (!config) {\n return overlays;\n }\n\n const infoKeys = Object.keys(info);\n\n for (let n = 0; n < config.length; ++n) {\n // deep copy\n const overlay = JSON.parse(JSON.stringify(config[n]));\n\n // add tag values\n const tags = overlay.tags;\n if (typeof tags !== 'undefined' && tags.length !== 0) {\n // get values\n const values = [];\n for (let i = 0; i < tags.length; ++i) {\n for (let j = 0; j < infoKeys.length; ++j) {\n if (tags[i] === infoKeys[j]) {\n values.push(info[infoKeys[j]].value);\n }\n }\n }\n // format\n if (typeof overlay.format === 'undefined' || overlay.format === null) {\n overlay.format = createDefaultReplaceFormat(values.length);\n }\n overlay.value = replaceFlags(overlay.format, values).trim();\n }\n\n // store\n overlays.push(overlay);\n }\n\n return overlays;\n}\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get a normalised spin speed in the Y direction to try to support\n * trackpads (small and large deltaY) and mouse wheel (large deltaY).\n * Should return 1 or -1 for a single mouse wheel tick.\n *\n * @param {object} event The wheel event.\n * @returns {number} The normalised spin Y.\n */\nfunction getSpinY(event) {\n // (notes of 03/2024)\n\n // firefox seems to change the value of deltaY\n // if you ask for deltaMode before (?????)\n\n // deltaY (for a single mouse wheel tick):\n // - chrome: [linux] 120, [mac]: 4\n // - firefox: [linux] 132, [mac]: 16\n\n // wheelDelta (for a single mouse wheel tick):\n // - chrome: [linux] 120, [mac]: 240\n // - firefox: [linux] 120, [mac]: 48\n\n // -> using wheelDelta for mouse wheel detection as\n // it is consistently larger than trackpad scroll\n\n // wheelDeltaY and deltaY do not go in the same direction,\n // using -deltaY so that they do...\n\n if (typeof event.wheelDeltaY === 'undefined') {\n //logger.warn('No wheel delta, scroll could be tricky...);\n return -event.deltaY;\n } else {\n const threshold = 45;\n if (event.wheelDeltaY > threshold) {\n return 1;\n } else if (event.wheelDeltaY < -threshold) {\n return -1;\n } else {\n return -event.deltaY / 60;\n }\n }\n}\n\n/**\n * Class to sum wheel events and know if that sum\n * corresponds to a 'tick'.\n */\nclass ScrollSum {\n /**\n * The scroll sum.\n *\n * @type {number}\n */\n #sum = 0;\n\n /**\n * Get the scroll sum.\n *\n * @returns {number} The scroll sum.\n */\n getSum() {\n return this.#sum;\n }\n\n /**\n * Add scroll.\n *\n * @param {object} event The wheel event.\n */\n add(event) {\n this.#sum += getSpinY(event);\n }\n\n /**\n * Clear the scroll sum.\n */\n clear() {\n this.#sum = 0;\n }\n\n /**\n * Does the accumulated scroll correspond to a 'tick'.\n *\n * @returns {boolean} True if the sum corresponds to a 'tick'.\n */\n isTick() {\n return Math.abs(this.#sum) >= 1;\n }\n}\n\n/**\n * Scroll wheel class: provides a wheel event handler\n * that scroll the corresponding data.\n */\nexport class ScrollWheel {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Accumulated scroll.\n *\n * @type {ScrollSum}\n */\n #scrollSum = new ScrollSum();\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel(event) {\n this.#scrollSum.add(event);\n const up = this.#scrollSum.getSum() >= 0;\n\n // exit if no tick\n if (!this.#scrollSum.isTick()) {\n return;\n } else {\n this.#scrollSum.clear();\n }\n\n // prevent default page scroll\n event.preventDefault();\n\n const layerDetails = getLayerDetailsFromEvent(event);\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n let newPosition;\n if (layerGroup.canScroll()) {\n if (up) {\n newPosition = viewController.getIncrementScrollPosition();\n } else {\n newPosition = viewController.getDecrementScrollPosition();\n }\n } else if (layerGroup.moreThanOne(3)) {\n if (up) {\n newPosition = viewController.getIncrementPosition(3);\n } else {\n newPosition = viewController.getDecrementPosition(3);\n }\n }\n\n // set all layers if at least one can be set\n if (typeof newPosition !== 'undefined' &&\n layerGroup.isPositionInBounds(newPosition)) {\n viewController.setCurrentPosition(newPosition);\n }\n }\n\n} // ScrollWheel class\n","import {Point2D} from './point';\nimport {i18n} from '../utils/i18n';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Line shape.\n */\nexport class Line {\n\n /**\n * Line begin point.\n *\n * @type {Point2D}\n */\n #begin;\n\n /**\n * Line end point.\n *\n * @type {Point2D}\n */\n #end;\n\n /**\n * @param {Point2D} begin A Point2D representing the beginning\n * of the line.\n * @param {Point2D} end A Point2D representing the end of the line.\n */\n constructor(begin, end) {\n this.#begin = begin;\n this.#end = end;\n }\n\n /**\n * Get the begin point of the line.\n *\n * @returns {Point2D} The beginning point of the line.\n */\n getBegin() {\n return this.#begin;\n }\n\n /**\n * Get the end point of the line.\n *\n * @returns {Point2D} The ending point of the line.\n */\n getEnd() {\n return this.#end;\n }\n\n /**\n * Check for equality.\n *\n * @param {Line} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getBegin().equals(rhs.getBegin()) &&\n this.getEnd().equals(rhs.getEnd());\n }\n\n /**\n * Get the line delta in the X direction.\n *\n * @returns {number} The delta in the X direction.\n */\n getDeltaX() {\n return this.getEnd().getX() - this.getBegin().getX();\n }\n\n /**\n * Get the line delta in the Y direction.\n *\n * @returns {number} The delta in the Y direction.\n */\n getDeltaY() {\n return this.getEnd().getY() - this.getBegin().getY();\n }\n\n /**\n * Get the length of the line.\n *\n * @returns {number} The length of the line.\n */\n getLength() {\n return Math.sqrt(\n this.getDeltaX() * this.getDeltaX() +\n this.getDeltaY() * this.getDeltaY()\n );\n }\n\n /**\n * Get the length of the line according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The length of the line with spacing\n * or null for null spacings.\n */\n getWorldLength(spacing2D) {\n let wlen = null;\n if (spacing2D !== null) {\n const dxs = this.getDeltaX() * spacing2D.x;\n const dys = this.getDeltaY() * spacing2D.y;\n wlen = Math.sqrt(dxs * dxs + dys * dys);\n }\n return wlen;\n }\n\n /**\n * Get the mid point of the line.\n *\n * @returns {Point2D} The mid point of the line.\n */\n getMidpoint() {\n return new Point2D(\n (this.getBegin().getX() + this.getEnd().getX()) / 2,\n (this.getBegin().getY() + this.getEnd().getY()) / 2\n );\n }\n\n /**\n * Get the slope of the line.\n *\n * @returns {number} The slope of the line.\n */\n getSlope() {\n return this.getDeltaY() / this.getDeltaX();\n }\n\n /**\n * Get the intercept of the line.\n *\n * @returns {number} The slope of the line.\n */\n getIntercept() {\n return (\n this.getEnd().getX() * this.getBegin().getY() -\n this.getBegin().getX() * this.getEnd().getY()\n ) / this.getDeltaX();\n }\n\n /**\n * Get the inclination of the line.\n *\n * @returns {number} The inclination of the line.\n */\n getInclination() {\n // tan(theta) = slope\n const angle =\n Math.atan2(this.getDeltaY(), this.getDeltaX()) * 180 / Math.PI;\n // shift?\n return 180 - angle;\n }\n\n /**\n * Quantify a line according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @returns {object} A quantification object.\n */\n quantify(viewController) {\n const quant = {};\n // length\n const spacing2D = viewController.get2DSpacing();\n const length = this.getWorldLength(spacing2D);\n if (length !== null) {\n quant.length = {value: length, unit: i18n.t('unit.mm')};\n }\n // return\n return quant;\n }\n\n} // Line class\n\n/**\n * Get the angle between two lines in degree.\n *\n * @param {Line} line0 The first line.\n * @param {Line} line1 The second line.\n * @returns {number} The angle.\n */\nexport function getAngle(line0, line1) {\n const dx0 = line0.getDeltaX();\n const dy0 = line0.getDeltaY();\n const dx1 = line1.getDeltaX();\n const dy1 = line1.getDeltaY();\n // dot = ||a||*||b||*cos(theta)\n const dot = dx0 * dx1 + dy0 * dy1;\n // cross = ||a||*||b||*sin(theta)\n const det = dx0 * dy1 - dy0 * dx1;\n // tan = sin / cos\n const angle = Math.atan2(det, dot) * 180 / Math.PI;\n // complementary angle\n // shift?\n return 360 - (180 - angle);\n}\n\n/**\n * Get a perpendicular line to an input one.\n *\n * @param {Line} line The line to be perpendicular to.\n * @param {Point2D} point The middle point of the perpendicular line.\n * @param {number} length The length of the perpendicular line.\n * @returns {object} A perpendicular line.\n */\nexport function getPerpendicularLine(line, point, length) {\n // begin point\n let beginX = 0;\n let beginY = 0;\n // end point\n let endX = 0;\n let endY = 0;\n\n // check slope:\n // 0 -> horizontal\n // Infinite -> vertical (a/Infinite = 0)\n if (line.getSlope() !== 0) {\n // a0 * a1 = -1\n const slope = -1 / line.getSlope();\n // y0 = a1*x0 + b1 -> b1 = y0 - a1*x0\n const intercept = point.getY() - slope * point.getX();\n\n // 1. (x - x0)^2 + (y - y0)^2 = d^2\n // 2. a = (y - y0) / (x - x0) -> y = a*(x - x0) + y0\n // -> (x - x0)^2 + m^2 * (x - x0)^2 = d^2\n // -> x = x0 +- d / sqrt(1+m^2)\n\n // length is the distance between begin and end,\n // point is half way between both -> d = length / 2\n const dx = length / (2 * Math.sqrt(1 + slope * slope));\n\n // begin point\n beginX = point.getX() - dx;\n beginY = slope * beginX + intercept;\n // end point\n endX = point.getX() + dx;\n endY = slope * endX + intercept;\n } else {\n // horizontal input line -> perpendicular is vertical!\n // begin point\n beginX = point.getX();\n beginY = point.getY() - length / 2;\n // end point\n endX = point.getX();\n endY = point.getY() + length / 2;\n }\n // perpendicalar line\n return new Line(\n new Point2D(beginX, beginY),\n new Point2D(endX, endY));\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Region Of Interest shape.\n * Note: should be a closed path.\n */\nexport class ROI {\n\n /**\n * List of points.\n *\n * @type {Point2D[]}\n */\n #points = [];\n\n /**\n * Get a point of the list at a given index.\n *\n * @param {number} index The index of the point to get\n * (beware, no size check).\n * @returns {Point2D} The Point2D at the given index.\n */\n getPoint(index) {\n return this.#points[index];\n }\n\n /**\n * Get the length of the point list.\n *\n * @returns {number} The length of the point list.\n */\n getLength() {\n return this.#points.length;\n }\n\n /**\n * Add a point to the ROI.\n *\n * @param {Point2D} point The Point2D to add.\n */\n addPoint(point) {\n this.#points.push(point);\n }\n\n /**\n * Add points to the ROI.\n *\n * @param {Point2D[]} rhs The array of POints2D to add.\n */\n addPoints(rhs) {\n this.#points = this.#points.concat(rhs);\n }\n\n} // ROI class\n","import {ROI} from '../math/roi';\nimport {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * ROI factory.\n */\nexport class RoiFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'roi-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number|undefined} The number of points.\n */\n getNPoints() {\n // undefined to end with double click\n return undefined;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 100;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a roi shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} [viewController] The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const roi = new ROI();\n // add input points to the ROI\n roi.addPoints(points);\n // points stored the Konvajs way\n const arr = [];\n for (let i = 0; i < roi.getLength(); ++i) {\n arr.push(roi.getPoint(i).getX());\n arr.push(roi.getPoint(i).getY());\n }\n // draw shape\n const kshape = new Konva.Line({\n points: arr,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape',\n closed: true\n });\n\n // text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n name: 'text'\n });\n let textExpr = '';\n if (typeof viewController !== 'undefined') {\n const modality = viewController.getModality();\n if (typeof defaults.labelText.roi[modality] !== 'undefined') {\n textExpr = defaults.labelText.roi[modality];\n } else {\n textExpr = defaults.labelText.roi['*'];\n }\n }\n ktext.setText(textExpr);\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: {}\n };\n\n // label\n const klabel = new Konva.Label({\n x: roi.getPoint(0).getX(),\n y: roi.getPoint(0).getY() + style.scale(10),\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update a roi shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n for (let i = 0; i < points.length; i = i + 2) {\n const px = points[i] + shape.x();\n const py = points[i + 1] + shape.y();\n const name = i.toString();\n anchors.push(getDefaultAnchor(\n px, py, name, style\n ));\n }\n return anchors;\n }\n\n /**\n * Update a roi shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kroi = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kroi instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n\n // update self\n const point = group.getChildren(function (node) {\n return node.id() === anchor.id();\n })[0];\n point.x(anchor.x());\n point.y(anchor.y());\n // update the roi point and compensate for possible drag\n // (the anchor id is the index of the point in the list)\n const points = kroi.points();\n const index = parseInt(anchor.id(), 10);\n points[index] = anchor.x() - kroi.x();\n points[index + 1] = anchor.y() - kroi.y();\n kroi.points(points);\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n ktext.setText(meta.textExpr);\n // update position\n const textPos = {\n x: points[0] + kroi.x(),\n y: points[1] + kroi.y() + style.scale(10)\n };\n klabel.position(textPos);\n }\n\n} // class RoiFactory\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Path shape.\n */\nexport class Path {\n\n /**\n * @param {Point2D[]} [inputPointArray] The list of Point2D that make\n * the path (optional).\n * @param {number[]} [inputControlPointIndexArray] The list of control\n * point of path, as indexes (optional).\n * Note: first and last point do not need to be equal.\n */\n constructor(inputPointArray, inputControlPointIndexArray) {\n /**\n * List of points.\n *\n * @type {Point2D[]}\n */\n this.pointArray = inputPointArray ? inputPointArray.slice() : [];\n /**\n * List of control points.\n *\n * @type {number[]}\n */\n this.controlPointIndexArray = inputControlPointIndexArray\n ? inputControlPointIndexArray.slice() : [];\n }\n\n /**\n * Get a point of the list.\n *\n * @param {number} index The index of the point\n * to get (beware, no size check).\n * @returns {Point2D} The Point2D at the given index.\n */\n getPoint(index) {\n return this.pointArray[index];\n }\n\n /**\n * Is the given point a control point.\n *\n * @param {Point2D} point The Point2D to check.\n * @returns {boolean} True if a control point.\n */\n isControlPoint(point) {\n const index = this.pointArray.indexOf(point);\n if (index !== -1) {\n return this.controlPointIndexArray.indexOf(index) !== -1;\n } else {\n throw new Error('Error: isControlPoint called with not in list point.');\n }\n }\n\n /**\n * Get the length of the path.\n *\n * @returns {number} The length of the path.\n */\n getLength() {\n return this.pointArray.length;\n }\n\n /**\n * Add a point to the path.\n *\n * @param {Point2D} point The Point2D to add.\n */\n addPoint(point) {\n this.pointArray.push(point);\n }\n\n /**\n * Add a control point to the path.\n *\n * @param {Point2D} point The Point2D to make a control point.\n */\n addControlPoint(point) {\n const index = this.pointArray.indexOf(point);\n if (index !== -1) {\n this.controlPointIndexArray.push(index);\n } else {\n throw new Error(\n 'Cannot mark a non registered point as control point.');\n }\n }\n\n /**\n * Add points to the path.\n *\n * @param {Point2D[]} newPointArray The list of Point2D to add.\n */\n addPoints(newPointArray) {\n this.pointArray = this.pointArray.concat(newPointArray);\n }\n\n /**\n * Append a Path to this one.\n *\n * @param {Path} other The Path to append.\n */\n appenPath(other) {\n const oldSize = this.pointArray.length;\n this.pointArray = this.pointArray.concat(other.pointArray);\n const indexArray = [];\n for (let i = 0; i < other.controlPointIndexArray.length; ++i) {\n indexArray[i] = other.controlPointIndexArray[i] + oldSize;\n }\n this.controlPointIndexArray =\n this.controlPointIndexArray.concat(indexArray);\n }\n\n} // Path class\n","/**\n * Circular Bucket Queue.\n *\n * Returns input'd points in sorted order. All operations run in roughly O(1)\n * time (for input with small cost values), but it has a strict requirement:\n *\n * If the most recent point had a cost of c, any points added should have a cost\n * c' in the range c <= c' <= c + (capacity - 1).\n */\nexport class BucketQueue {\n\n /**\n * @param {number} bits Number of bits.\n * @param {Function} cost_functor The cost functor.\n */\n constructor(bits, cost_functor) {\n this.bucketCount = 1 << bits; // # of buckets = 2^bits\n this.mask = this.bucketCount - 1; // 2^bits - 1 = index mask\n this.size = 0;\n\n this.loc = 0; // Current index in bucket list\n // Cost defaults to item value\n this.cost = (typeof (cost_functor) !== 'undefined')\n ? cost_functor : function (item) {\n return item;\n };\n this.buckets = this.buildArray(this.bucketCount);\n }\n\n push(item) {\n // Prepend item to the list in the appropriate bucket\n const bucket = this.getBucket(item);\n item.next = this.buckets[bucket];\n this.buckets[bucket] = item;\n\n this.size++;\n }\n\n pop() {\n if (this.size === 0) {\n throw new Error('Cannot pop, bucketQueue is empty.');\n }\n\n // Find first empty bucket\n while (this.buckets[this.loc] === null) {\n this.loc = (this.loc + 1) % this.bucketCount;\n }\n\n // All items in bucket have same cost, return the first one\n const ret = this.buckets[this.loc];\n this.buckets[this.loc] = ret.next;\n ret.next = null;\n\n this.size--;\n return ret;\n }\n\n // TODO: needs at least two items...\n remove(item) {\n // Tries to remove item from queue. Returns true on success, false otherwise\n if (!item) {\n return false;\n }\n\n // To find node, go to bucket and search through unsorted list.\n const bucket = this.getBucket(item);\n let node = this.buckets[bucket];\n\n while (node !== null &&\n !(node.next !== null &&\n item.x === node.next.x &&\n item.y === node.next.y)) {\n node = node.next;\n }\n\n if (node === null) {\n // Item not in list, ergo item not in queue\n return false;\n } else {\n // Found item, do standard list node deletion\n node.next = node.next.next;\n\n this.size--;\n return true;\n }\n }\n\n isEmpty() {\n return this.size === 0;\n }\n\n getBucket(item) {\n // Bucket index is the masked cost\n return this.cost(item) & this.mask;\n }\n\n buildArray(newSize) {\n // Create array and initialze pointers to null\n const buckets = new Array(newSize);\n\n for (let i = 0; i < buckets.length; i++) {\n buckets[i] = null;\n }\n\n return buckets;\n }\n\n} // class BucketQueue\n","import {BucketQueue} from './bucketQueue';\n\n// Pre-created to reduce allocation in inner loops\nconst __twothirdpi = (2 / (3 * Math.PI));\n\n/**\n * Compute grey scale.\n *\n * @param {Array} data The input data.\n * @param {number} width The width of the output.\n * @param {number} height The height of the output.\n * @returns {object} A greyscale object.\n */\nfunction computeGreyscale(data, width, height) {\n // Returns 2D augmented array containing greyscale data\n // Greyscale values found by averaging colour channels\n // Input should be in a flat RGBA array, with values between 0 and 255\n const greyscale = {\n data: []\n };\n\n // Compute actual values\n for (let y = 0; y < height; y++) {\n greyscale.data[y] = [];\n\n for (let x = 0; x < width; x++) {\n const p = (y * width + x) * 4;\n greyscale.data[y][x] = (data[p] + data[p + 1] + data[p + 2]) / (3 * 255);\n }\n }\n\n // Augment with convenience functions\n greyscale.dx = function (x, y) {\n if (x + 1 === this.data[y].length) {\n // If we're at the end, back up one\n x--;\n }\n return this.data[y][x + 1] - this.data[y][x];\n };\n\n greyscale.dy = function (x, y) {\n if (y + 1 === this.data.length) {\n // If we're at the end, back up one\n y--;\n }\n return this.data[y][x] - this.data[y + 1][x];\n };\n\n greyscale.gradMagnitude = function (x, y) {\n const dx = this.dx(x, y);\n const dy = this.dy(x, y);\n return Math.sqrt(dx * dx + dy * dy);\n };\n\n greyscale.laplace = function (x, y) {\n // Laplacian of Gaussian\n let lap = -16 * this.data[y][x];\n lap += this.data[y - 2][x];\n lap += this.data[y - 1][x - 1] +\n 2 * this.data[y - 1][x] +\n this.data[y - 1][x + 1];\n lap += this.data[y][x - 2] +\n 2 * this.data[y][x - 1] +\n 2 * this.data[y][x + 1] +\n this.data[y][x + 2];\n lap += this.data[y + 1][x - 1] +\n 2 * this.data[y + 1][x] +\n this.data[y + 1][x + 1];\n lap += this.data[y + 2][x];\n\n return lap;\n };\n\n return greyscale;\n}\n\n/**\n * Compute gradient.\n *\n * @param {object} greyscale The input greyscale.\n * @returns {object} A gradient object.\n */\nfunction computeGradient(greyscale) {\n // Returns a 2D array of gradient magnitude values for greyscale. The values\n // are scaled between 0 and 1, and then flipped, so that it works as a cost\n // function.\n const gradient = [];\n\n let max = 0; // Maximum gradient found, for scaling purposes\n\n let x = 0;\n let y = 0;\n\n for (y = 0; y < greyscale.data.length - 1; y++) {\n gradient[y] = [];\n\n for (x = 0; x < greyscale.data[y].length - 1; x++) {\n gradient[y][x] = greyscale.gradMagnitude(x, y);\n max = Math.max(gradient[y][x], max);\n }\n\n gradient[y][greyscale.data[y].length - 1] =\n gradient[y][greyscale.data.length - 2];\n }\n\n gradient[greyscale.data.length - 1] = [];\n for (let i = 0; i < gradient[0].length; i++) {\n gradient[greyscale.data.length - 1][i] =\n gradient[greyscale.data.length - 2][i];\n }\n\n // Flip and scale.\n for (y = 0; y < gradient.length; y++) {\n for (x = 0; x < gradient[y].length; x++) {\n // @ts-ignore\n gradient[y][x] = 1 - (gradient[y][x] / max);\n }\n }\n\n return gradient;\n}\n\n/**\n * @param {object} greyscale The input greyscale.\n * @returns {object} A laplace object.\n */\nfunction computeLaplace(greyscale) {\n // Returns a 2D array of Laplacian of Gaussian values\n const laplace = [];\n\n // Make the edges low cost here.\n\n laplace[0] = [];\n laplace[1] = [];\n for (let i = 1; i < greyscale.data.length; i++) {\n // Pad top, since we can't compute Laplacian\n laplace[0][i] = 1;\n laplace[1][i] = 1;\n }\n\n for (let y = 2; y < greyscale.data.length - 2; y++) {\n laplace[y] = [];\n // Pad left, ditto\n laplace[y][0] = 1;\n laplace[y][1] = 1;\n\n for (let x = 2; x < greyscale.data[y].length - 2; x++) {\n // Threshold needed to get rid of clutter.\n laplace[y][x] = (greyscale.laplace(x, y) > 0.33) ? 0 : 1;\n }\n\n // Pad right, ditto\n laplace[y][greyscale.data[y].length - 2] = 1;\n laplace[y][greyscale.data[y].length - 1] = 1;\n }\n\n laplace[greyscale.data.length - 2] = [];\n laplace[greyscale.data.length - 1] = [];\n for (let j = 1; j < greyscale.data.length; j++) {\n // Pad bottom, ditto\n laplace[greyscale.data.length - 2][j] = 1;\n laplace[greyscale.data.length - 1][j] = 1;\n }\n\n return laplace;\n}\n\n/**\n * Compute the X gradient.\n *\n * @param {object} greyscale The values.\n * @returns {Array} The gradient.\n */\nfunction computeGradX(greyscale) {\n // Returns 2D array of x-gradient values for greyscale\n const gradX = [];\n\n for (let y = 0; y < greyscale.data.length; y++) {\n gradX[y] = [];\n\n for (let x = 0; x < greyscale.data[y].length - 1; x++) {\n gradX[y][x] = greyscale.dx(x, y);\n }\n\n gradX[y][greyscale.data[y].length - 1] =\n gradX[y][greyscale.data[y].length - 2];\n }\n\n return gradX;\n}\n\n/**\n * Compute the Y gradient.\n *\n * @param {object} greyscale The values.\n * @returns {Array} The gradient.\n */\nfunction computeGradY(greyscale) {\n // Returns 2D array of y-gradient values for greyscale\n const gradY = [];\n\n for (let y = 0; y < greyscale.data.length - 1; y++) {\n gradY[y] = [];\n\n for (let x = 0; x < greyscale.data[y].length; x++) {\n gradY[y][x] = greyscale.dy(x, y);\n }\n }\n\n gradY[greyscale.data.length - 1] = [];\n for (let i = 0; i < greyscale.data[0].length; i++) {\n gradY[greyscale.data.length - 1][i] = gradY[greyscale.data.length - 2][i];\n }\n\n return gradY;\n}\n\n/**\n * Compute the gradient unit vector.\n *\n * @param {Array} gradX The X gradient.\n * @param {Array} gradY The Y gradient.\n * @param {number} px The point X.\n * @param {number} py The point Y.\n * @param {object} out The result.\n */\nfunction gradUnitVector(gradX, gradY, px, py, out) {\n // Returns the gradient vector at (px,py), scaled to a magnitude of 1\n const ox = gradX[py][px];\n const oy = gradY[py][px];\n\n let gvm = Math.sqrt(ox * ox + oy * oy);\n gvm = Math.max(gvm, 1e-100); // To avoid possible divide-by-0 errors\n\n out.x = ox / gvm;\n out.y = oy / gvm;\n}\n\n/**\n * Compute the gradient direction.\n *\n * @param {Array} gradX The X gradient.\n * @param {Array} gradY The Y gradient.\n * @param {number} px The point X.\n * @param {number} py The point Y.\n * @param {number} qx The q X.\n * @param {number} qy The q Y.\n * @returns {number} The direction.\n */\nfunction gradDirection(gradX, gradY, px, py, qx, qy) {\n const __dgpuv = {x: -1, y: -1};\n const __gdquv = {x: -1, y: -1};\n // Compute the gradiant direction, in radians, between to points\n gradUnitVector(gradX, gradY, px, py, __dgpuv);\n gradUnitVector(gradX, gradY, qx, qy, __gdquv);\n\n let dp = __dgpuv.y * (qx - px) - __dgpuv.x * (qy - py);\n let dq = __gdquv.y * (qx - px) - __gdquv.x * (qy - py);\n\n // Make sure dp is positive, to keep things consistant\n if (dp < 0) {\n dp = -dp;\n dq = -dq;\n }\n\n if (px !== qx && py !== qy) {\n // We're going diagonally between pixels\n dp *= Math.SQRT1_2;\n dq *= Math.SQRT1_2;\n }\n\n return __twothirdpi * (Math.acos(dp) + Math.acos(dq));\n}\n\n/**\n * Compute the sides.\n *\n * @param {number} dist The distance.\n * @param {Array} gradX The X gradient.\n * @param {Array} gradY The Y gradient.\n * @param {object} greyscale The value.\n * @returns {object} The sides.\n */\nfunction computeSides(dist, gradX, gradY, greyscale) {\n // Returns 2 2D arrays, containing inside and outside greyscale values.\n // These greyscale values are the intensity just a little bit along the\n // gradient vector, in either direction, from the supplied point. These\n // values are used when using active-learning Intelligent Scissors\n\n const sides = {};\n sides.inside = [];\n sides.outside = [];\n\n const guv = {x: -1, y: -1}; // Current gradient unit vector\n\n for (let y = 0; y < gradX.length; y++) {\n sides.inside[y] = [];\n sides.outside[y] = [];\n\n for (let x = 0; x < gradX[y].length; x++) {\n gradUnitVector(gradX, gradY, x, y, guv);\n\n //(x, y) rotated 90 = (y, -x)\n\n let ix = Math.round(x + dist * guv.y);\n let iy = Math.round(y - dist * guv.x);\n let ox = Math.round(x - dist * guv.y);\n let oy = Math.round(y + dist * guv.x);\n\n ix = Math.max(Math.min(ix, gradX[y].length - 1), 0);\n ox = Math.max(Math.min(ox, gradX[y].length - 1), 0);\n iy = Math.max(Math.min(iy, gradX.length - 1), 0);\n oy = Math.max(Math.min(oy, gradX.length - 1), 0);\n\n sides.inside[y][x] = greyscale.data[iy][ix];\n sides.outside[y][x] = greyscale.data[oy][ox];\n }\n }\n\n return sides;\n}\n\n/**\n * Gaussian blur an input buffer.\n *\n * @param {Array} buffer The input buffer.\n * @param {Array} out The result.\n */\nfunction gaussianBlur(buffer, out) {\n // Smooth values over to fill in gaps in the mapping\n out[0] = 0.4 * buffer[0] + 0.5 * buffer[1] + 0.1 * buffer[1];\n out[1] = 0.25 * buffer[0] + 0.4 * buffer[1] + 0.25 * buffer[2] +\n 0.1 * buffer[3];\n\n for (let i = 2; i < buffer.length - 2; i++) {\n out[i] = 0.05 * buffer[i - 2] + 0.25 * buffer[i - 1] +\n 0.4 * buffer[i] + 0.25 * buffer[i + 1] + 0.05 * buffer[i + 2];\n }\n\n const len = buffer.length;\n out[len - 2] = 0.25 * buffer[len - 1] + 0.4 * buffer[len - 2] +\n 0.25 * buffer[len - 3] + 0.1 * buffer[len - 4];\n out[len - 1] = 0.4 * buffer[len - 1] + 0.5 * buffer[len - 2] +\n 0.1 * buffer[len - 3];\n}\n\n/**\n * Scissors.\n *\n * Ref: Eric N. Mortensen, William A. Barrett, Interactive Segmentation with\n * Intelligent Scissors, Graphical Models and Image Processing, Volume 60,\n * Issue 5, September 1998, Pages 349-384, ISSN 1077-3169,\n * DOI: 10.1006/gmip.1998.0480.\n *\n * See: {@link http://www.sciencedirect.com/science/article/B6WG4-45JB8WN-9/2/6fe59d8089fd1892c2bfb82283065579}.\n *\n * Highly inspired from: {@link http://code.google.com/p/livewire-javascript/}.\n */\nexport class Scissors {\n\n constructor() {\n this.width = -1;\n this.height = -1;\n\n this.curPoint = null; // Corrent point we're searching on.\n this.searchGranBits = 8; // Bits of resolution for BucketQueue.\n this.searchGran = 1 << this.searchGranBits; //bits.\n this.pointsPerPost = 500;\n\n // Precomputed image data. All in ranges 0 >= x >= 1 and\n // all inverted (1 - x).\n this.greyscale = null; // Greyscale of image\n this.laplace = null; // Laplace zero-crossings (either 0 or 1).\n this.gradient = null; // Gradient magnitudes.\n this.gradX = null; // X-differences.\n this.gradY = null; // Y-differences.\n\n // Matrix mapping point => parent along shortest-path to root.\n this.parents = null;\n\n this.working = false; // Currently computing shortest paths?\n\n // Begin Training:\n this.trained = false;\n this.trainingPoints = null;\n\n this.edgeWidth = 2;\n this.trainingLength = 32;\n\n this.edgeGran = 256;\n this.edgeTraining = null;\n\n this.gradPointsNeeded = 32;\n this.gradGran = 1024;\n this.gradTraining = null;\n\n this.insideGran = 256;\n this.insideTraining = null;\n\n this.outsideGran = 256;\n this.outsideTraining = null;\n }\n // End Training\n\n\n // Begin training methods //\n getTrainingIdx(granularity, value) {\n return Math.round((granularity - 1) * value);\n }\n\n getTrainedEdge(edge) {\n return this.edgeTraining[this.getTrainingIdx(this.edgeGran, edge)];\n }\n\n getTrainedGrad(grad) {\n return this.gradTraining[this.getTrainingIdx(this.gradGran, grad)];\n }\n\n getTrainedInside(inside) {\n return this.insideTraining[this.getTrainingIdx(this.insideGran, inside)];\n }\n\n getTrainedOutside(outside) {\n return this.outsideTraining[this.getTrainingIdx(this.outsideGran, outside)];\n }\n // End training methods //\n\n setWorking(working) {\n // Sets working flag\n this.working = working;\n }\n\n setDimensions(width, height) {\n this.width = width;\n this.height = height;\n }\n\n setData(data) {\n if (this.width === -1 || this.height === -1) {\n // The width and height should have already been set\n throw new Error('Dimensions have not been set.');\n }\n\n this.greyscale = computeGreyscale(data, this.width, this.height);\n this.laplace = computeLaplace(this.greyscale);\n this.gradient = computeGradient(this.greyscale);\n this.gradX = computeGradX(this.greyscale);\n this.gradY = computeGradY(this.greyscale);\n\n const sides = computeSides(\n this.edgeWidth, this.gradX, this.gradY, this.greyscale);\n this.inside = sides.inside;\n this.outside = sides.outside;\n this.edgeTraining = [];\n this.gradTraining = [];\n this.insideTraining = [];\n this.outsideTraining = [];\n }\n\n findTrainingPoints(p) {\n // Grab the last handful of points for training\n const points = [];\n\n if (this.parents !== null) {\n for (let i = 0; i < this.trainingLength && p; i++) {\n points.push(p);\n p = this.parents[p.y][p.x];\n }\n }\n\n return points;\n }\n\n resetTraining() {\n this.trained = false; // Training is ignored with this flag set\n }\n\n doTraining(p) {\n // Compute training weights and measures\n this.trainingPoints = this.findTrainingPoints(p);\n\n if (this.trainingPoints.length < 8) {\n return; // Not enough points, I think. It might crash if length = 0.\n }\n\n const buffer = [];\n this.calculateTraining(\n buffer, this.edgeGran, this.greyscale, this.edgeTraining);\n this.calculateTraining(\n buffer, this.gradGran, this.gradient, this.gradTraining);\n this.calculateTraining(\n buffer, this.insideGran, this.inside, this.insideTraining);\n this.calculateTraining(\n buffer, this.outsideGran, this.outside, this.outsideTraining);\n\n if (this.trainingPoints.length < this.gradPointsNeeded) {\n // If we have two few training points, the gradient weight map might not\n // be smooth enough, so average with normal weights.\n this.addInStaticGrad(this.trainingPoints.length, this.gradPointsNeeded);\n }\n\n this.trained = true;\n }\n\n calculateTraining(\n buffer, granularity, input, output) {\n let i = 0;\n // Build a map of raw-weights to trained-weights by favoring input values\n buffer.length = granularity;\n for (i = 0; i < granularity; i++) {\n buffer[i] = 0;\n }\n\n let maxVal = 1;\n for (i = 0; i < this.trainingPoints.length; i++) {\n const p = this.trainingPoints[i];\n const idx = this.getTrainingIdx(granularity, input[p.y][p.x]);\n buffer[idx] += 1;\n\n maxVal = Math.max(maxVal, buffer[idx]);\n }\n\n // Invert and scale.\n for (i = 0; i < granularity; i++) {\n buffer[i] = 1 - buffer[i] / maxVal;\n }\n\n // Blur it, as suggested. Gets rid of static.\n gaussianBlur(buffer, output);\n }\n\n addInStaticGrad(have, need) {\n // Average gradient raw-weights to trained-weights map with standard weight\n // map so that we don't end up with something to spiky\n for (let i = 0; i < this.gradGran; i++) {\n this.gradTraining[i] = Math.min(\n this.gradTraining[i],\n 1 - i * (need - have) / (need * this.gradGran)\n );\n }\n }\n\n gradDirection(px, py, qx, qy) {\n return gradDirection(this.gradX, this.gradY, px, py, qx, qy);\n }\n\n dist(px, py, qx, qy) {\n // The grand culmunation of most of the code: the weighted distance function\n let grad = this.gradient[qy][qx];\n\n if (px === qx || py === qy) {\n // The distance is Euclidean-ish; non-diagonal edges should be shorter\n grad *= Math.SQRT1_2;\n }\n\n const lap = this.laplace[qy][qx];\n const dir = this.gradDirection(px, py, qx, qy);\n\n if (this.trained) {\n // Apply training magic\n const gradT = this.getTrainedGrad(grad);\n const edgeT = this.getTrainedEdge(this.greyscale.data[py][px]);\n const insideT = this.getTrainedInside(this.inside[py][px]);\n const outsideT = this.getTrainedOutside(this.outside[py][px]);\n\n return 0.3 * gradT + 0.3 * lap + 0.1 * (dir + edgeT + insideT + outsideT);\n } else {\n // Normal weights\n return 0.43 * grad + 0.43 * lap + 0.11 * dir;\n }\n }\n\n adj(p) {\n const list = [];\n\n const sx = Math.max(p.x - 1, 0);\n const sy = Math.max(p.y - 1, 0);\n const ex = Math.min(p.x + 1, this.greyscale.data[0].length - 1);\n const ey = Math.min(p.y + 1, this.greyscale.data.length - 1);\n\n let idx = 0;\n for (let y = sy; y <= ey; y++) {\n for (let x = sx; x <= ex; x++) {\n if (x !== p.x || y !== p.y) {\n list[idx++] = {x: x, y: y};\n }\n }\n }\n\n return list;\n }\n\n #costFunction = (p) => {\n return Math.round(this.searchGran * this.cost[p.y][p.x]);\n };\n\n setPoint(sp) {\n this.setWorking(true);\n\n this.curPoint = sp;\n\n let x = 0;\n let y = 0;\n\n this.visited = [];\n for (y = 0; y < this.height; y++) {\n this.visited[y] = [];\n for (x = 0; x < this.width; x++) {\n this.visited[y][x] = false;\n }\n }\n\n this.parents = [];\n for (y = 0; y < this.height; y++) {\n this.parents[y] = [];\n }\n\n this.cost = [];\n for (y = 0; y < this.height; y++) {\n this.cost[y] = [];\n for (x = 0; x < this.width; x++) {\n this.cost[y][x] = Number.MAX_VALUE;\n }\n }\n this.cost[sp.y][sp.x] = 0;\n\n this.pq = new BucketQueue(this.searchGranBits, this.#costFunction);\n this.pq.push(sp);\n }\n\n doWork() {\n if (!this.working) {\n return;\n }\n\n this.timeout = null;\n\n let pointCount = 0;\n const newPoints = [];\n while (!this.pq.isEmpty() && pointCount < this.pointsPerPost) {\n const p = this.pq.pop();\n newPoints.push(p);\n newPoints.push(this.parents[p.y][p.x]);\n\n this.visited[p.y][p.x] = true;\n\n const adjList = this.adj(p);\n for (let i = 0; i < adjList.length; i++) {\n const q = adjList[i];\n\n const pqCost = this.cost[p.y][p.x] + this.dist(p.x, p.y, q.x, q.y);\n\n if (pqCost < this.cost[q.y][q.x]) {\n if (this.cost[q.y][q.x] !== Number.MAX_VALUE) {\n // Already in PQ, must remove it so we can re-add it.\n this.pq.remove(q);\n }\n\n this.cost[q.y][q.x] = pqCost;\n this.parents[q.y][q.x] = p;\n this.pq.push(q);\n }\n }\n\n pointCount++;\n }\n\n return newPoints;\n }\n\n} // Scissors class\n","import {i18n} from '../utils/i18n';\nimport {getStats} from './stats';\nimport {Index} from './index';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mulitply the three inputs if the last two are not null.\n *\n * @param {number} a The first input.\n * @param {number} b The second input.\n * @param {number} c The third input.\n * @returns {number} The multiplication of the three inputs or\n * null if one of the last two is null.\n */\nfunction mulABC(a, b, c) {\n let res = null;\n if (b !== null && c !== null) {\n res = a * b * c;\n }\n return res;\n}\n\n/**\n * Ellipse shape.\n */\nexport class Ellipse {\n\n /**\n * Ellipse centre.\n *\n * @type {Point2D}\n */\n #centre;\n\n /**\n * Ellipse horizontal radius.\n *\n * @type {number}\n */\n #a;\n\n /**\n * Ellipse vertical radius.\n *\n * @type {number}\n */\n #b;\n\n /**\n * @param {Point2D} centre A Point2D representing the centre\n * of the ellipse.\n * @param {number} a The radius of the ellipse on the horizontal axe.\n * @param {number} b The radius of the ellipse on the vertical axe.\n */\n constructor(centre, a, b) {\n this.#centre = centre;\n this.#a = a;\n this.#b = b;\n }\n\n /**\n * Get the centre (point) of the ellipse.\n *\n * @returns {Point2D} The center (point) of the ellipse.\n */\n getCenter() {\n return this.#centre;\n }\n\n /**\n * Get the radius of the ellipse on the horizontal axe.\n *\n * @returns {number} The radius of the ellipse on the horizontal axe.\n */\n getA() {\n return this.#a;\n }\n\n /**\n * Get the radius of the ellipse on the vertical axe.\n *\n * @returns {number} The radius of the ellipse on the vertical axe.\n */\n getB() {\n return this.#b;\n }\n\n /**\n * Check for equality.\n *\n * @param {Ellipse} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getCenter().equals(rhs.getCenter()) &&\n this.getA() === rhs.getA() &&\n this.getB() === rhs.getB();\n }\n\n /**\n * Get the surface of the ellipse.\n *\n * @returns {number} The surface of the ellipse.\n */\n getSurface() {\n return Math.PI * this.getA() * this.getB();\n }\n\n /**\n * Get the surface of the ellipse according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The surface of the ellipse multiplied by the given\n * spacing or null for null spacings.\n */\n getWorldSurface(spacing2D) {\n return mulABC(this.getSurface(), spacing2D.x, spacing2D.y);\n }\n\n /**\n * Get the rounded limits of the ellipse.\n *\n * See: {@link https://en.wikipedia.org/wiki/Ellipse#Standard_equation}.\n *\n * Ellipse formula: `x*x / a*a + y*y / b*b = 1`.\n *\n * Implies: `y = (+-)(b/a) * sqrt(a*a - x*x)`.\n *\n * @returns {number[][][]} The rounded limits:\n * list of [x, y] pairs (min, max).\n */\n getRound() {\n const centerX = this.getCenter().getX();\n const centerY = this.getCenter().getY();\n const radiusX = this.getA();\n const radiusY = this.getB();\n const radiusRatio = radiusX / radiusY;\n const rySquare = Math.pow(radiusY, 2);\n // Y bounds\n const minY = centerY - radiusY;\n const maxY = centerY + radiusY;\n const regions = [];\n // loop through lines and store limits\n for (let y = minY; y < maxY; ++y) {\n const diff = rySquare - Math.pow(y - centerY, 2);\n // remove small values (possibly negative)\n if (Math.abs(diff) < 1e-7) {\n continue;\n }\n const transX = radiusRatio * Math.sqrt(diff);\n // remove small values\n if (transX < 0.5) {\n continue;\n }\n regions.push([\n [Math.round(centerX - transX), Math.round(y)],\n [Math.round(centerX + transX), Math.round(y)]\n ]);\n }\n return regions;\n }\n\n /**\n * Quantify an ellipse according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {object} A quantification object.\n */\n quantify(viewController, flags) {\n const quant = {};\n // shape quantification\n const spacing2D = viewController.get2DSpacing();\n quant.a = {\n value: this.getA() * spacing2D.x,\n unit: i18n.t('unit.mm')\n };\n quant.b = {\n value: this.getB() * spacing2D.y,\n unit: i18n.t('unit.mm')\n };\n const surface = this.getWorldSurface(spacing2D);\n if (surface !== null) {\n quant.surface = {value: surface / 100, unit: i18n.t('unit.cm2')};\n }\n\n // pixel values quantification\n if (viewController.canQuantifyImage()) {\n const regions = this.getRound();\n if (regions.length !== 0) {\n const values = viewController.getImageVariableRegionValues(regions);\n const unit = viewController.getPixelUnit();\n const quantif = getStats(values, flags);\n quant.min = {value: quantif.min, unit: unit};\n quant.max = {value: quantif.max, unit: unit};\n quant.mean = {value: quantif.mean, unit: unit};\n quant.stdDev = {value: quantif.stdDev, unit: unit};\n if (typeof quantif.median !== 'undefined') {\n quant.median = {value: quantif.median, unit: unit};\n }\n if (typeof quantif.p25 !== 'undefined') {\n quant.p25 = {value: quantif.p25, unit: unit};\n }\n if (typeof quantif.p75 !== 'undefined') {\n quant.p75 = {value: quantif.p75, unit: unit};\n }\n }\n }\n\n // return\n return quant;\n }\n\n} // Ellipse class\n\n/**\n * Get the indices that form a ellpise.\n *\n * @param {Index} center The ellipse center.\n * @param {number[]} radius The 2 ellipse radiuses.\n * @param {number[]} dir The 2 ellipse directions.\n * @returns {Index[]} The indices of the ellipse.\n */\nexport function getEllipseIndices(center, radius, dir) {\n const centerValues = center.getValues();\n // keep all values for possible extra dimensions\n const values = centerValues.slice();\n const indices = [];\n const radiusI = radius[0];\n const radiusJ = radius[1];\n const radiusRatio = radiusI / radiusJ;\n const radiusJ2 = Math.pow(radiusJ, 2);\n const di = dir[0];\n const dj = dir[1];\n // deduce 4 positions from top right\n for (let j = 0; j < radiusJ; ++j) {\n // right triangle formed by radiuses, j and len\n // ellipse: i*i / a*a + j*j / b*b = 1\n // -> i = a/b * sqrt(b*b - j*j)\n const len = Math.round(\n radiusRatio * Math.sqrt(radiusJ2 - Math.pow(j, 2)));\n const jmax = centerValues[dj] + j;\n const jmin = centerValues[dj] - j;\n for (let i = 0; i < len; ++i) {\n const imax = centerValues[di] + i;\n const imin = centerValues[di] - i;\n\n // right\n values[di] = imax;\n // right - top\n values[dj] = jmax;\n indices.push(new Index(values.slice()));\n // right - bottom\n if (jmin !== jmax) {\n values[dj] = jmin;\n indices.push(new Index(values.slice()));\n }\n\n // left\n if (imin !== imax) {\n values[di] = imin;\n // left - top\n values[dj] = jmax;\n indices.push(new Index(values.slice()));\n // left - bottom\n if (jmin !== jmax) {\n values[dj] = jmin;\n indices.push(new Index(values.slice()));\n }\n }\n }\n }\n return indices;\n}\n","import {Point2D} from './point';\nimport {getStats} from './stats';\nimport {i18n} from '../utils/i18n';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mulitply the three inputs if the last two are not null.\n *\n * @param {number} a The first input.\n * @param {number} b The second input.\n * @param {number} c The third input.\n * @returns {number} The multiplication of the three inputs or\n * null if one of the last two is null.\n */\nfunction mulABC(a, b, c) {\n let res = null;\n if (b !== null && c !== null) {\n res = a * b * c;\n }\n return res;\n}\n\n/**\n * Rectangle shape.\n */\nexport class Rectangle {\n\n /**\n * Rectangle begin point.\n *\n * @type {Point2D}\n */\n #begin;\n\n /**\n * Rectangle end point.\n *\n * @type {Point2D}\n */\n #end;\n\n /**\n * @param {Point2D} begin A Point2D representing the beginning\n * of the rectangle.\n * @param {Point2D} end A Point2D representing the end\n * of the rectangle.\n */\n constructor(begin, end) {\n this.#begin = new Point2D(\n Math.min(begin.getX(), end.getX()),\n Math.min(begin.getY(), end.getY())\n );\n this.#end = new Point2D(\n Math.max(begin.getX(), end.getX()),\n Math.max(begin.getY(), end.getY())\n );\n }\n\n /**\n * Get the begin point of the rectangle.\n *\n * @returns {Point2D} The begin point of the rectangle.\n */\n getBegin() {\n return this.#begin;\n }\n\n /**\n * Get the end point of the rectangle.\n *\n * @returns {Point2D} The end point of the rectangle.\n */\n getEnd() {\n return this.#end;\n }\n\n /**\n * Check for equality.\n *\n * @param {Rectangle} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getBegin().equals(rhs.getBegin()) &&\n this.getEnd().equals(rhs.getEnd());\n }\n\n /**\n * Get the surface of the rectangle.\n *\n * @returns {number} The surface of the rectangle.\n */\n getSurface() {\n const begin = this.getBegin();\n const end = this.getEnd();\n return Math.abs(end.getX() - begin.getX()) *\n Math.abs(end.getY() - begin.getY());\n }\n\n /**\n * Get the surface of the rectangle according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The surface of the rectangle multiplied by the given\n * spacing or null for null spacings.\n */\n getWorldSurface(spacing2D) {\n return mulABC(this.getSurface(), spacing2D.x, spacing2D.y);\n }\n\n /**\n * Get the real width of the rectangle.\n *\n * @returns {number} The real width of the rectangle.\n */\n getRealWidth() {\n return this.getEnd().getX() - this.getBegin().getX();\n }\n\n /**\n * Get the real height of the rectangle.\n *\n * @returns {number} The real height of the rectangle.\n */\n getRealHeight() {\n return this.getEnd().getY() - this.getBegin().getY();\n }\n\n /**\n * Get the width of the rectangle.\n *\n * @returns {number} The width of the rectangle.\n */\n getWidth() {\n return Math.abs(this.getRealWidth());\n }\n\n /**\n * Get the height of the rectangle.\n *\n * @returns {number} The height of the rectangle.\n */\n getHeight() {\n return Math.abs(this.getRealHeight());\n }\n\n /**\n * Get the rounded limits of the rectangle.\n *\n * @returns {object} The rounded limits as {min, max} (Point2D).\n */\n getRound() {\n const roundBegin = new Point2D(\n Math.round(this.getBegin().getX()),\n Math.round(this.getBegin().getY())\n );\n const roundEnd = new Point2D(\n Math.round(this.getEnd().getX()),\n Math.round(this.getEnd().getY())\n );\n return {\n min: roundBegin,\n max: roundEnd\n };\n }\n\n /**\n * Quantify a rectangle according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {object} A quantification object.\n */\n quantify(viewController, flags) {\n const quant = {};\n // shape quantification\n const spacing2D = viewController.get2DSpacing();\n quant.width = {\n value: this.getWidth() * spacing2D.x,\n unit: i18n.t('unit.mm')\n };\n quant.height = {\n value: this.getHeight() * spacing2D.y,\n unit: i18n.t('unit.mm')\n };\n const surface = this.getWorldSurface(spacing2D);\n if (surface !== null) {\n quant.surface = {value: surface / 100, unit: i18n.t('unit.cm2')};\n }\n\n // pixel values quantification\n if (viewController.canQuantifyImage()) {\n const round = this.getRound();\n const values = viewController.getImageRegionValues(round.min, round.max);\n const unit = viewController.getPixelUnit();\n const quantif = getStats(values, flags);\n quant.min = {value: quantif.min, unit: unit};\n quant.max = {value: quantif.max, unit: unit};\n quant.mean = {value: quantif.mean, unit: unit};\n quant.stdDev = {value: quantif.stdDev, unit: unit};\n if (typeof quantif.median !== 'undefined') {\n quant.median = {value: quantif.median, unit: unit};\n }\n if (typeof quantif.p25 !== 'undefined') {\n quant.p25 = {value: quantif.p25, unit: unit};\n }\n if (typeof quantif.p75 !== 'undefined') {\n quant.p75 = {value: quantif.p75, unit: unit};\n }\n }\n\n // return\n return quant;\n }\n\n} // Rectangle class\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\n/* eslint-enable no-unused-vars */\n\n/**\n * Threshold an image between an input minimum and maximum.\n */\nexport class Threshold {\n /**\n * Threshold minimum.\n *\n * @type {number}\n */\n #min = 0;\n\n /**\n * Threshold maximum.\n *\n * @type {number}\n */\n #max = 0;\n\n /**\n * Get the threshold minimum.\n *\n * @returns {number} The threshold minimum.\n */\n getMin() {\n return this.#min;\n }\n\n /**\n * Set the threshold minimum.\n *\n * @param {number} val The threshold minimum.\n */\n setMin(val) {\n this.#min = val;\n }\n\n /**\n * Get the threshold maximum.\n *\n * @returns {number} The threshold maximum.\n */\n getMax() {\n return this.#max;\n }\n\n /**\n * Set the threshold maximum.\n *\n * @param {number} val The threshold maximum.\n */\n setMax(val) {\n this.#max = val;\n }\n\n /**\n * Get the name of the filter.\n *\n * @returns {string} The name of the filter.\n */\n getName() {\n return 'Threshold';\n }\n\n /**\n * Original image.\n *\n * @type {Image}\n */\n #originalImage = null;\n\n /**\n * Set the original image.\n *\n * @param {Image} image The original image.\n */\n setOriginalImage(image) {\n this.#originalImage = image;\n }\n\n /**\n * Get the original image.\n *\n * @returns {Image} The original image.\n */\n getOriginalImage() {\n return this.#originalImage;\n }\n\n /**\n * Transform the main image using this filter.\n *\n * @returns {Image} The transformed image.\n */\n update() {\n const image = this.getOriginalImage();\n const imageMin = image.getDataRange().min;\n const threshFunction = (value) => {\n if (value < this.getMin() || value > this.getMax()) {\n return imageMin;\n } else {\n return value;\n }\n };\n return image.transform(threshFunction);\n }\n\n} // class Threshold\n\n/**\n * Sharpen an image using a sharpen convolution matrix.\n */\nexport class Sharpen {\n /**\n * Get the name of the filter.\n *\n * @returns {string} The name of the filter.\n */\n getName() {\n return 'Sharpen';\n }\n\n /**\n * Original image.\n *\n * @type {Image}\n */\n #originalImage = null;\n\n /**\n * Set the original image.\n *\n * @param {Image} image The original image.\n */\n setOriginalImage(image) {\n this.#originalImage = image;\n }\n\n /**\n * Get the original image.\n *\n * @returns {Image} The original image.\n */\n getOriginalImage() {\n return this.#originalImage;\n }\n\n /**\n * Transform the main image using this filter.\n *\n * @returns {Image} The transformed image.\n */\n update() {\n const image = this.getOriginalImage();\n /* eslint-disable @stylistic/js/array-element-newline */\n return image.convolute2D([\n 0, -1, 0,\n -1, 5, -1,\n 0, -1, 0\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n }\n\n} // class Sharpen\n\n/**\n * Apply a Sobel filter to an image.\n */\nexport class Sobel {\n /**\n * Get the name of the filter.\n *\n * @returns {string} The name of the filter.\n */\n getName() {\n return 'Sobel';\n }\n\n /**\n * Original image.\n *\n * @type {Image}\n */\n #originalImage = null;\n\n /**\n * Set the original image.\n *\n * @param {Image} image The original image.\n */\n setOriginalImage(image) {\n this.#originalImage = image;\n }\n\n /**\n * Get the original image.\n *\n * @returns {Image} The original image.\n */\n getOriginalImage() {\n return this.#originalImage;\n }\n\n /**\n * Transform the main image using this filter.\n *\n * @returns {Image} The transformed image.\n */\n update() {\n const image = this.getOriginalImage();\n /* eslint-disable @stylistic/js/array-element-newline */\n const gradX = image.convolute2D([\n 1, 0, -1,\n 2, 0, -2,\n 1, 0, -1\n ]);\n const gradY = image.convolute2D([\n 1, 2, 1,\n 0, 0, 0,\n -1, -2, -1\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n return gradX.compose(gradY, function (x, y) {\n return Math.sqrt(x * x + y * y);\n });\n }\n\n} // class Sobel\n","import {ListenerHandler} from '../utils/listen';\nimport {\n Threshold as ThresholdFilter,\n Sobel as SobelFilter,\n Sharpen as SharpenFilter\n} from '../image/filter';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Filter tool.\n */\nexport class Filter {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Filter list.\n *\n * @type {object}\n */\n #filterList = null;\n\n /**\n * Selected filter.\n *\n * @type {object}\n */\n #selectedFilter = 0;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the tool.\n *\n * @param {boolean} bool Flag to activate or not.\n */\n activate(bool) {\n // setup event listening\n for (const key in this.#filterList) {\n if (bool) {\n this.#filterList[key].addEventListener('filterrun', this.#fireEvent);\n this.#filterList[key].addEventListener('filter-undo', this.#fireEvent);\n } else {\n this.#filterList[key].removeEventListener(\n 'filterrun', this.#fireEvent);\n this.#filterList[key].removeEventListener(\n 'filter-undo', this.#fireEvent);\n }\n }\n }\n\n /**\n * Set the tool options.\n *\n * @param {object} options The list of filter names amd classes.\n */\n setOptions(options) {\n this.#filterList = {};\n // try to instanciate filters from the options\n for (const key in options) {\n this.#filterList[key] = new options[key](this.#app);\n }\n }\n\n /**\n * Get the type of tool options: here 'instance' since the filter\n * list contains instances of each possible filter.\n *\n * @returns {string} The type.\n */\n getOptionsType() {\n return 'instance';\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // setup event listening\n for (const key in this.#filterList) {\n this.#filterList[key].init();\n }\n }\n\n /**\n * Handle keydown event.\n *\n * @param {object} event The keydown event.\n */\n keydown = (event) => {\n event.context = 'Filter';\n this.#app.onKeydown(event);\n };\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {string[]} The list of event names.\n */\n getEventNames() {\n return ['filterrun', 'filterundo'];\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Get the selected filter.\n *\n * @returns {object} The selected filter.\n */\n getSelectedFilter() {\n return this.#selectedFilter;\n }\n\n /**\n * Set the tool live features: filter name.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.filterName !== 'undefined') {\n // check if we have it\n if (!this.hasFilter(features.filterName)) {\n throw new Error('Unknown filter: \\'' + features.filterName + '\\'');\n }\n // de-activate last selected\n if (this.#selectedFilter) {\n this.#selectedFilter.activate(false);\n }\n // enable new one\n this.#selectedFilter = this.#filterList[features.filterName];\n // activate the selected filter\n this.#selectedFilter.activate(true);\n }\n if (typeof features.run !== 'undefined' && features.run) {\n let args = {};\n if (typeof features.runArgs !== 'undefined') {\n args = features.runArgs;\n }\n this.getSelectedFilter().run(args);\n }\n }\n\n /**\n * Get the list of filters.\n *\n * @returns {Array} The list of filter objects.\n */\n getFilterList() {\n return this.#filterList;\n }\n\n /**\n * Check if a filter is in the filter list.\n *\n * @param {string} name The name to check.\n * @returns {string} The filter list element for the given name.\n */\n hasFilter(name) {\n return this.#filterList[name];\n }\n\n} // class Filter\n\n/**\n * Threshold filter tool.\n */\nexport class Threshold {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Associated filter.\n *\n * @type {object}\n */\n #filter = new ThresholdFilter();\n\n /**\n * Flag to know wether to reset the image or not.\n *\n * @type {boolean}\n */\n #resetImage = true;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the filter.\n *\n * @param {boolean} bool Flag to activate or not.\n */\n activate(bool) {\n // reset the image when the tool is activated\n if (bool) {\n this.#resetImage = true;\n }\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // does nothing\n }\n\n /**\n * Run the filter.\n *\n * @param {*} args The filter arguments.\n */\n run(args) {\n if (typeof args.dataId === 'undefined') {\n throw new Error('No dataId to run threshod filter on.');\n }\n this.#filter.setMin(args.min);\n this.#filter.setMax(args.max);\n // reset the image if asked\n if (this.#resetImage) {\n const image = this.#app.getData(args.dataId).image;\n this.#filter.setOriginalImage(image);\n this.#resetImage = false;\n }\n const command = new RunFilterCommand(this.#filter, args.dataId, this.#app);\n command.onExecute = this.#fireEvent;\n command.onUndo = this.#fireEvent;\n command.execute();\n // save command in undo stack\n this.#app.addToUndoStack(command);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // class Threshold\n\n/**\n * Sharpen filter tool.\n */\nexport class Sharpen {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the filter.\n *\n * @param {boolean} _bool Flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // does nothing\n }\n\n /**\n * Run the filter.\n *\n * @param {*} args The filter arguments.\n */\n run(args) {\n if (typeof args.dataId === 'undefined') {\n throw new Error('No dataId to run sharpen filter on.');\n }\n const filter = new SharpenFilter();\n const image = this.#app.getData(args.dataId).image;\n filter.setOriginalImage(image);\n const command = new RunFilterCommand(filter, args.dataId, this.#app);\n command.onExecute = this.#fireEvent;\n command.onUndo = this.#fireEvent;\n command.execute();\n // save command in undo stack\n this.#app.addToUndoStack(command);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // filter.Sharpen\n\n/**\n * Sobel filter tool.\n */\nexport class Sobel {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the filter.\n *\n * @param {boolean} _bool Flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // does nothing\n }\n\n /**\n * Run the filter.\n *\n * @param {*} args The filter arguments.\n */\n run(args) {\n if (typeof args.dataId === 'undefined') {\n throw new Error('No dataId to run sobel filter on.');\n }\n const filter = new SobelFilter();\n const image = this.#app.getData(args.dataId).image;\n filter.setOriginalImage(image);\n const command = new RunFilterCommand(filter, args.dataId, this.#app);\n command.onExecute = this.#fireEvent;\n command.onUndo = this.#fireEvent;\n command.execute();\n // save command in undo stack\n this.#app.addToUndoStack(command);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // class filter.Sobel\n\n/**\n * Run filter command.\n */\nexport class RunFilterCommand {\n\n /**\n * The filter to run.\n *\n * @type {object}\n */\n #filter;\n\n /**\n * Data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {object} filter The filter to run.\n * @param {string} dataId The data to filter.\n * @param {App} app The associated application.\n */\n constructor(filter, dataId, app) {\n this.#filter = filter;\n this.#dataId = dataId;\n this.#app = app;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Filter-' + this.#filter.getName();\n }\n\n /**\n * Execute the command.\n *\n * @fires RunFilterCommand#filterrun\n */\n execute() {\n // run filter and set app image\n this.#app.setImage(this.#dataId, this.#filter.update());\n // update display\n this.#app.render(this.#dataId);\n /**\n * Filter run event.\n *\n * @event RunFilterCommand#filterrun\n * @type {object}\n * @property {string} type The event type: filterrun.\n * @property {number} id The id of the run command.\n */\n const event = {\n type: 'filterrun',\n id: this.getName(),\n dataId: this.#dataId\n };\n // callback\n this.onExecute(event);\n }\n\n /**\n * Undo the command.\n *\n * @fires RunFilterCommand#filterundo\n */\n undo() {\n // reset the image\n this.#app.setImage(this.#dataId, this.#filter.getOriginalImage());\n // update display\n this.#app.render(this.#dataId);\n /**\n * Filter undo event.\n *\n * @event RunFilterCommand#filterundo\n * @type {object}\n * @property {string} type The event type: filterundo.\n * @property {number} id The id of the undone run command.\n */\n const event = {\n type: 'filterundo',\n id: this.getName(),\n dataid: this.#dataId\n }; // callback\n this.onUndo(event);\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // RunFilterCommand class\n","import {WindowLevel} from './windowLevel';\nimport {Scroll} from './scroll';\nimport {ZoomAndPan} from './zoomPan';\nimport {Opacity} from './opacity';\nimport {Draw} from './draw';\nimport {Floodfill} from './floodfill';\nimport {Livewire} from './livewire';\n\nimport {ArrowFactory} from './arrow';\nimport {CircleFactory} from './circle';\nimport {EllipseFactory} from './ellipse';\nimport {FreeHandFactory} from './freeHand';\nimport {ProtractorFactory} from './protractor';\nimport {RectangleFactory} from './rectangle';\nimport {RoiFactory} from './roi';\nimport {RulerFactory} from './ruler';\n\nimport {Filter, Threshold, Sobel, Sharpen} from './filter';\n\n/**\n * List of client provided tools to be added to\n * the default ones.\n *\n * @type {Object}\n */\nexport const toolList = {};\n\nexport const defaultToolList = {\n WindowLevel,\n Scroll,\n ZoomAndPan,\n Opacity,\n Draw,\n Filter,\n Floodfill,\n Livewire\n};\n\nexport const toolOptions = {\n draw: {\n ArrowFactory,\n CircleFactory,\n EllipseFactory,\n FreeHandFactory,\n ProtractorFactory,\n RectangleFactory,\n RoiFactory,\n RulerFactory\n },\n filter: {\n Threshold,\n Sobel,\n Sharpen\n }\n};","import {ScrollWheel} from './scrollWheel';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {\n validateWindowWidth,\n WindowLevel as WindowLevelValues\n} from '../image/windowLevel';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * WindowLevel tool: handle window/level related events.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {WindowLevel: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('WindowLevel');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class WindowLevel {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n */\n #start(point) {\n this.#started = true;\n this.#startPoint = point;\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n // check start flag\n if (!this.#started) {\n return;\n }\n\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n\n // difference to last position\n const diffX = point.getX() - this.#startPoint.getX();\n const diffY = this.#startPoint.getY() - point.getY();\n // data range\n const range = viewController.getImageRescaledDataRange();\n // 1/1000 seems to give reasonable results...\n const pixelToIntensity = (range.max - range.min) * 0.01;\n\n // calculate new window level\n const center = viewController.getWindowLevel().center;\n const width = viewController.getWindowLevel().width;\n const windowCenter = center + Math.round(diffY * pixelToIntensity);\n let windowWidth = width + Math.round(diffX * pixelToIntensity);\n // bound window width\n windowWidth = validateWindowWidth(windowWidth);\n // set\n const wl = new WindowLevelValues(windowCenter, windowWidth);\n viewController.setWindowLevel(wl);\n\n // store position\n this.#startPoint = point;\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n this.#start(mousePoint);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n this.#start(touchPoints[0]);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle double click event.\n *\n * @param {object} event The double click event.\n */\n dblclick = (event) => {\n const layerDetails = getLayerDetailsFromEvent(event);\n const mousePoint = getMousePoint(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const index = viewLayer.displayToPlaneIndex(mousePoint);\n const viewController = viewLayer.getViewController();\n const image = this.#app.getData(viewLayer.getDataId()).image;\n\n // update view controller\n const wl = new WindowLevelValues(\n image.getRescaledValueAtIndex(\n viewController.getCurrentIndex().getWithNew2D(\n index.get(0),\n index.get(1)\n )\n ),\n viewController.getWindowLevel().width\n );\n viewController.setWindowLevel(wl);\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel = (event) => {\n this.#scrollWhell.wheel(event);\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'WindowLevel';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Set the tool live features: does nothing.\n *\n * @param {object} _features The list of features.\n */\n setFeatures(_features) {\n // does nothing\n }\n\n} // WindowLevel class\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {ScrollWheel} from './scrollWheel';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Scroll class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {Scroll: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('Scroll');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323707.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323563.dcm'\n * ]);\n * @example Example with slider\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {Scroll: new dwv.ToolConfig()};\n * app.init(options);\n * // create range\n * const range = document.createElement('input');\n * range.type = 'range';\n * range.min = 0;\n * range.id = 'sliceRange';\n * document.body.appendChild(range);\n * // update app on slider change\n * range.oninput = function () {\n * const lg = app.getLayerGroupByDivId('layerGroup0');\n * const vc = lg.getActiveViewLayer().getViewController();\n * const index = vc.getCurrentIndex();\n * const values = index.getValues();\n * values[2] = this.value;\n * vc.setCurrentIndex(new dwv.Index(values));\n * }\n * // activate tool and update range max on load\n * app.addEventListener('load', function () {\n * app.setTool('Scroll');\n * const size = app.getData(0).image.getGeometry().getSize();\n * range.max = size.get(2) - 1;\n * });\n * // update slider on slice change (for ex via mouse wheel)\n * app.addEventListener('positionchange', function () {\n * const lg = app.getLayerGroupByDivId('layerGroup0');\n * const vc = lg.getActiveViewLayer().getViewController();\n * range.value = vc.getCurrentIndex().get(2);\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323707.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323563.dcm'\n * ]);\n */\nexport class Scroll {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * Touch timer ID (created by setTimeout).\n *\n * @type {number}\n */\n #touchTimerID;\n\n /**\n * Option to show or not a value tooltip on mousemove.\n *\n * @type {boolean}\n */\n #displayTooltip = false;\n\n /**\n * Current layer group div id.\n *\n * @type {string}\n */\n #currentDivId;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #start(point, divId) {\n // optional tooltip\n this.#removeTooltipDiv();\n\n // stop viewer if playing\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n if (viewController.isPlaying()) {\n viewController.stop();\n }\n\n // start flag\n this.#started = true;\n this.#startPoint = point;\n\n // update controller position\n const planePos = viewLayer.displayToPlanePos(point);\n const position = viewController.getPositionFromPlanePoint(planePos);\n viewController.setCurrentPosition(position);\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n // optional tooltip\n if (this.#displayTooltip) {\n this.#showTooltip(point, divId);\n }\n return;\n }\n\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n let newPosition;\n\n // difference to last Y position\n const diffY = point.getY() - this.#startPoint.getY();\n const yMove = (Math.abs(diffY) > 15);\n // do not trigger for small moves\n if (yMove && layerGroup.canScroll()) {\n // update view controller\n if (diffY > 0) {\n newPosition = viewController.getDecrementScrollPosition();\n } else {\n newPosition = viewController.getIncrementScrollPosition();\n }\n }\n\n // difference to last X position\n const diffX = point.getX() - this.#startPoint.getX();\n const xMove = (Math.abs(diffX) > 15);\n // do not trigger for small moves\n if (xMove && layerGroup.moreThanOne(3)) {\n // update view controller\n if (diffX > 0) {\n newPosition = viewController.getIncrementPosition(3);\n } else {\n newPosition = viewController.getDecrementPosition(3);\n }\n }\n\n // set all layers if at least one can be set\n if (typeof newPosition !== 'undefined' &&\n layerGroup.isPositionInBounds(newPosition)) {\n viewController.setCurrentPosition(newPosition);\n }\n\n // reset origin point\n if (xMove || yMove) {\n this.#startPoint = point;\n }\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n // remove possible tooltip div\n this.#removeTooltipDiv();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n // long touch triggers the dblclick\n // @ts-ignore\n this.#touchTimerID = setTimeout(() => {\n this.dblclick(event);\n }, 500);\n // call start\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n // abort timer if move\n if (this.#touchTimerID !== null) {\n clearTimeout(this.#touchTimerID);\n this.#touchTimerID = null;\n }\n // call update\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n // abort timer\n if (this.#touchTimerID !== null) {\n clearTimeout(this.#touchTimerID);\n this.#touchTimerID = null;\n }\n // call mouse equivalent\n this.#finish();\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel = (event) => {\n this.#scrollWhell.wheel(event);\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Scroll';\n this.#app.onKeydown(event);\n };\n\n /**\n * Handle double click.\n *\n * @param {object} event The key down event.\n */\n dblclick = (event) => {\n const layerDetails = getLayerDetailsFromEvent(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n viewController.play();\n };\n\n /**\n * Display a tooltip at the given point.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #showTooltip(point, divId) {\n // get layer group\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n this.#currentDivId = divId;\n // show new tooltip\n layerGroup.showTooltip(point);\n }\n\n /**\n * Remove the last tooltip html div.\n */\n #removeTooltipDiv() {\n if (typeof this.#currentDivId !== 'undefined') {\n const layerGroup = this.#app.getLayerGroupByDivId(this.#currentDivId);\n layerGroup.removeTooltipDiv();\n this.#currentDivId = undefined;\n }\n }\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // remove tooltip html when deactivating\n if (!_bool) {\n this.#removeTooltipDiv();\n }\n }\n\n /**\n * Set the tool live features: disaply tooltip.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.displayTooltip !== 'undefined') {\n this.#displayTooltip = features.displayTooltip;\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n} // Scroll class\n","import {Point2D} from '../math/point';\nimport {Line} from '../math/line';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * ZoomAndPan class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {ZoomAndPan: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('ZoomAndPan');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class ZoomAndPan {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Move flag: true if mouse or touch move.\n *\n * @type {boolean}\n */\n #hasMoved;\n\n /**\n * Line between input points.\n *\n * @type {Line}\n */\n #pointsLine;\n\n /**\n * PointsLine midpoint.\n *\n * @type {Point2D}\n */\n #midPoint;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n */\n #start(point) {\n this.#started = true;\n this.#startPoint = point;\n this.#hasMoved = false;\n }\n\n /**\n * Two touch start.\n *\n * @param {Point2D[]} points The start points.\n */\n #twoTouchStart = (points) => {\n this.#started = true;\n this.#startPoint = points[0];\n this.#hasMoved = false;\n // points line\n this.#pointsLine = new Line(points[0], points[1]);\n this.#midPoint = this.#pointsLine.getMidpoint();\n };\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n this.#hasMoved = true;\n\n // calculate translation\n const tx = point.getX() - this.#startPoint.getX();\n const ty = point.getY() - this.#startPoint.getY();\n // apply translation\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planeOffset = viewLayer.displayToPlaneScale(\n new Point2D(tx, ty)\n );\n const offset3D = viewController.getOffset3DFromPlaneOffset({\n x: planeOffset.getX(),\n y: planeOffset.getY()\n });\n layerGroup.addTranslation({\n x: offset3D.getX(),\n y: offset3D.getY(),\n z: offset3D.getZ()\n });\n layerGroup.draw();\n // reset origin point\n this.#startPoint = point;\n }\n\n /**\n * Two touch update.\n *\n * @param {Point2D[]} points The update points.\n * @param {string} divId The layer group divId.\n */\n #twoTouchUpdate = (points, divId) => {\n if (!this.#started) {\n return;\n }\n this.#hasMoved = true;\n\n const newLine = new Line(points[0], points[1]);\n const lineRatio = newLine.getLength() / this.#pointsLine.getLength();\n\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n if (lineRatio === 1) {\n // scroll mode\n // difference to last position\n const diffY = points[0].getY() - this.#startPoint.getY();\n // do not trigger for small moves\n if (Math.abs(diffY) < 15) {\n return;\n }\n // update view controller\n if (layerGroup.canScroll()) {\n let newPosition;\n if (diffY > 0) {\n newPosition = viewController.getIncrementScrollPosition();\n } else {\n newPosition = viewController.getDecrementScrollPosition();\n }\n // set all layers if at least one can be set\n if (typeof newPosition !== 'undefined' &&\n layerGroup.isPositionInBounds(newPosition)) {\n viewController.setCurrentPosition(newPosition);\n }\n }\n } else {\n // zoom mode\n const zoom = (lineRatio - 1) / 10;\n if (Math.abs(zoom) % 0.1 <= 0.05 &&\n typeof this.#midPoint !== 'undefined') {\n const planePos = viewLayer.displayToMainPlanePos(this.#midPoint);\n const center = viewController.getPlanePositionFromPlanePoint(planePos);\n layerGroup.addScale(zoom, center);\n layerGroup.draw();\n }\n }\n };\n\n /**\n * Set the current position.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #setCurrentPosition(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planePos = viewLayer.displayToPlanePos(point);\n const position = viewController.getPositionFromPlanePoint(planePos);\n viewController.setCurrentPosition(position);\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n this.#start(mousePoint);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} event The mouse up event.\n */\n mouseup = (event) => {\n // update position if no move\n if (!this.#hasMoved) {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#setCurrentPosition(mousePoint, layerDetails.groupDivId);\n }\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n if (touchPoints.length === 1) {\n this.#start(touchPoints[0]);\n } else if (touchPoints.length === 2) {\n this.#twoTouchStart(touchPoints);\n }\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n if (touchPoints.length === 1) {\n this.#update(touchPoints[0], layerDetails.groupDivId);\n } else if (touchPoints.length === 2) {\n this.#twoTouchUpdate(touchPoints, layerDetails.groupDivId);\n }\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} event The touch end event.\n */\n touchend = (event) => {\n // update position if no move\n if (!this.#hasMoved) {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#setCurrentPosition(mousePoint, layerDetails.groupDivId);\n }\n this.#finish();\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {object} event The mouse wheel event.\n */\n wheel = (event) => {\n // prevent default page scroll\n event.preventDefault();\n\n const step = -event.deltaY / 500;\n\n const layerDetails = getLayerDetailsFromEvent(event);\n const mousePoint = getMousePoint(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planePos = viewLayer.displayToMainPlanePos(mousePoint);\n const center = viewController.getPlanePositionFromPlanePoint(planePos);\n layerGroup.addScale(step, center);\n layerGroup.draw();\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'ZoomAndPan';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Set the tool live features: does nothing.\n *\n * @param {object} _features The list of features.\n */\n setFeatures(_features) {\n // does nothing\n }\n\n} // ZoomAndPan class\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {ScrollWheel} from './scrollWheel';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Opacity class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {Opacity: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('Opacity');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class Opacity {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n */\n #start(point) {\n this.#started = true;\n this.#startPoint = point;\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n\n // difference to last X position\n const diffX = point.getX() - this.#startPoint.getX();\n const xMove = (Math.abs(diffX) > 15);\n // do not trigger for small moves\n if (xMove) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const op = viewLayer.getOpacity();\n viewLayer.setOpacity(op + (diffX / 200));\n viewLayer.draw();\n\n // reset origin point\n this.#startPoint = point;\n }\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n this.#start(mousePoint);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n this.#start(touchPoints[0]);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {object} event The mouse wheel event.\n */\n wheel = (event) => {\n this.#scrollWhell.wheel(event);\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Opacity';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Set the tool live features: does nothing.\n *\n * @param {object} _features The list of features.\n */\n setFeatures(_features) {\n // does nothing\n }\n\n} // Opacity class\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {DicomData} from '../app/dataController';\nimport {ViewConfig} from '../app/application';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {guid} from '../math/stats';\nimport {logger} from '../utils/logger';\nimport {\n AddAnnotationCommand,\n RemoveAnnotationCommand\n} from './drawCommands';\nimport {\n isNodeNameShape,\n} from './drawBounds';\nimport {Annotation, AnnotationGroup} from '../image/annotation';\nimport {ScrollWheel} from './scrollWheel';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Style} from '../gui/style';\nimport {LayerGroup} from '../gui/layerGroup';\nimport {Point2D} from '../math/point';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {DrawShapeHandler} from './drawShapeHandler';\n/* eslint-enable no-unused-vars */\n\n/**\n * Drawing tool.\n *\n * This tool is responsible for the draw of layer group structure.\n *\n * ```\n * drawLayer\n * |_ positionGroup: {name=\"position-group\", id=\"#2-0#_#3-1\"}\n * |_ shapeGroup: {name=\"{shape name}-group\", id=\"#\"}\n * |_ shape: {name=\"shape\"},\n * |_ label: {name=\"label\"},\n * |_ extra: line tick, protractor arc...\n * ```\n *\n * Discussion:\n * - posGroup > shapeGroup:\n * (pro) slice/frame display: 1 loop -\n * (cons) multi-slice shape splitted in positionGroups.\n * - shapeGroup > posGroup:\n * (pros) more logical -\n * (cons) slice/frame display: 2 loops.\n */\nexport class Draw {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * Drawing style.\n *\n * @type {Style}\n */\n #style;\n\n /**\n * Callback store to allow attach/detach.\n *\n * @type {Array}\n */\n #callbackStore = [];\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #isDrawing = false;\n\n /**\n * Shape factory list.\n *\n * @type {object}\n */\n #shapeFactoryList = null;\n\n /**\n * Current shape factory.\n *\n * @type {object}\n */\n #currentFactory = null;\n\n /**\n * Current shape group.\n *\n * @type {object}\n */\n #tmpShapeGroup = null;\n\n /**\n * Shape name.\n *\n * @type {string}\n */\n #shapeName;\n\n /**\n * List of points.\n *\n * @type {Point2D[]}\n */\n #points = [];\n\n /**\n * Last selected point.\n *\n * @type {Point2D}\n */\n #lastPoint = null;\n\n /**\n * With scroll flag.\n *\n * @type {boolean}\n */\n #withScroll = true;\n\n\n /**\n * Shape handler: activate listeners on existing shape.\n *\n * @type {DrawShapeHandler}\n */\n #shapeHandler;\n\n /**\n * Auto shape colour: will use defaults colours and\n * vary them according to the layer.\n *\n * @type {boolean}\n */\n #autoShapeColour = true;\n\n /**\n * Event listeners.\n */\n #listeners = {};\n\n /**\n * Flag to know if the last added point was made by mouse move.\n *\n * @type {boolean}\n */\n #lastIsMouseMovePoint = false;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n this.#shapeHandler = new DrawShapeHandler(app);\n\n this.#style = app.getStyle();\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #switchEditOrCreateShapeGroup(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n let drawLayer = layerGroup.getActiveDrawLayer();\n\n if (typeof drawLayer === 'undefined') {\n // create new data\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const data = new DicomData({});\n data.annotationGroup = new AnnotationGroup();\n data.annotationGroup.setMeta('Modality', 'SR');\n data.annotationGroup.setMeta(\n 'StudyInstanceUID', viewController.getStudyInstanceUID());\n data.annotationGroup.setMeta(\n 'ReferencedSeriesSequence', {\n value: [{\n SeriesInstanceUID: viewController.getSeriesInstanceUID()\n }]\n });\n const dataId = this.#app.addData(data);\n // render (will create draw layer)\n this.#app.addDataViewConfig(dataId, new ViewConfig(divId));\n this.#app.render(dataId);\n\n drawLayer = layerGroup.getActiveDrawLayer();\n // set active to bind to toolboxController\n layerGroup.setActiveDrawLayerByDataId(dataId);\n }\n\n // set the layer shape handler\n drawLayer.setShapeHandler(this.#shapeHandler);\n\n const stage = drawLayer.getKonvaStage();\n\n // determine if the click happened in an existing shape\n const kshape = stage.getIntersection({\n x: point.getX(),\n y: point.getY()\n });\n\n // update scale\n this.#style.setZoomScale(stage.scale());\n\n // If shape exists, let user to edit\n if (kshape) {\n this.#selectShapeGroup(drawLayer, kshape);\n return;\n }\n // Else, is a new shape creation\n this.#startShapeGroupCreation(layerGroup, point);\n }\n\n /**\n * Initializes the new shape creation:\n * - Updates the started variable,\n * - Gets the factory,\n * - Initializes the points array.\n *\n * @param {LayerGroup} layerGroup The layer group where the user clicks.\n * @param {Point2D} point The start point where the user clicks.\n */\n #startShapeGroupCreation(layerGroup, point) {\n // disable edition\n this.#shapeHandler.disableAndResetEditor();\n this.#setToDrawingState();\n // store point\n const viewLayer = layerGroup.getActiveViewLayer();\n this.#lastPoint = viewLayer.displayToPlanePos(point);\n this.#points.push(this.#lastPoint);\n }\n\n /**\n * Sets the variables to drawing state:\n * - Updates is drawing variable,\n * - Initializes the current factory,\n * - Resets points.\n */\n #setToDrawingState() {\n // start storing points\n this.#isDrawing = true;\n // set factory\n this.#currentFactory = new this.#shapeFactoryList[this.#shapeName]();\n // clear array\n this.#points = [];\n }\n\n /**\n * Resets the variables to not drawing state:\n * - Destroys tmp shape group,\n * - Updates is drawing variable,\n * - Resets points.\n */\n #setToNotDrawingState() {\n this.#isDrawing = false;\n this.#points = [];\n }\n\n /**\n * Selects a shape group.\n *\n * @param {DrawLayer} drawLayer The draw layer where to draw.\n * @param {Konva.Shape} kshape The shape that has been selected.\n */\n #selectShapeGroup(drawLayer, kshape) {\n const group = kshape.getParent();\n const selectedShape = group.find('.shape')[0];\n if (!(selectedShape instanceof Konva.Shape)) {\n return;\n }\n this.#shapeHandler.setEditorShape(selectedShape, drawLayer);\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #updateShapeGroupCreation(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const pos = viewLayer.displayToPlanePos(point);\n\n // draw line to current pos\n if (Math.abs(pos.getX() - this.#lastPoint.getX()) > 0 ||\n Math.abs(pos.getY() - this.#lastPoint.getY()) > 0) {\n // clear last mouse move point\n if (this.#lastIsMouseMovePoint) {\n this.#points.pop();\n }\n // current point\n this.#lastPoint = pos;\n // mark it as temporary\n this.#lastIsMouseMovePoint = true;\n // add it to the list\n this.#points.push(this.#lastPoint);\n // update points\n this.#onNewPoints(this.#points, layerGroup);\n }\n }\n\n /**\n * Finish tool interaction.\n *\n * @param {string} divId The layer group divId.\n */\n #finishShapeGroupCreation(divId) {\n // exit if no points\n if (this.#points.length === 0) {\n logger.warn('Draw mouseup but no points...');\n return;\n }\n\n // do we have all the needed points\n if (this.#points.length === this.#currentFactory.getNPoints()) {\n // store points\n const layerGroup =\n this.#app.getLayerGroupByDivId(divId);\n this.#onFinalPoints(this.#points, layerGroup);\n this.#setToNotDrawingState();\n }\n\n // reset mouse move point flag\n this.#lastIsMouseMovePoint = false;\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n // exit if not started draw\n if (this.#isDrawing) {\n return;\n }\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#switchEditOrCreateShapeGroup(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#updateShapeGroupCreation(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} event The mouse up event.\n */\n mouseup = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#finishShapeGroupCreation(layerDetails.groupDivId);\n };\n\n /**\n * Handle double click event: some tools use it to finish interaction.\n *\n * @param {object} event The double click event.\n */\n dblclick = (event) => {\n // only end by double click undefined NPoints\n if (typeof this.#currentFactory.getNPoints() !== 'undefined') {\n return;\n }\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n // exit if no points\n if (this.#points.length === 0) {\n logger.warn('Draw dblclick but no points...');\n return;\n }\n\n // store points\n const layerDetails = getLayerDetailsFromEvent(event);\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n this.#onFinalPoints(this.#points, layerGroup);\n this.#setToNotDrawingState();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} event The mouse out event.\n */\n mouseout = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#finishShapeGroupCreation(layerDetails.groupDivId);\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n // exit if not started draw\n if (this.#isDrawing) {\n return;\n }\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#switchEditOrCreateShapeGroup(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n\n const layerDetails = getLayerDetailsFromEvent(event);\n const touchPoints = getTouchPoints(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const pos = viewLayer.displayToPlanePos(touchPoints[0]);\n\n if (Math.abs(pos.getX() - this.#lastPoint.getX()) > 0 ||\n Math.abs(pos.getY() - this.#lastPoint.getY()) > 0) {\n // clear last added point from the list (but not the first one)\n if (this.#points.length !== 1) {\n this.#points.pop();\n }\n // current point\n this.#lastPoint = pos;\n // add current one to the list\n this.#points.push(this.#lastPoint);\n // allow for anchor points\n if (this.#points.length < this.#currentFactory.getNPoints()) {\n clearTimeout(this.timer);\n this.timer = setTimeout(() => {\n this.#points.push(this.#lastPoint);\n }, this.#currentFactory.getTimeout());\n }\n // update points\n this.#onNewPoints(this.#points, layerGroup);\n }\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} event The touch end event.\n */\n touchend = (event) => {\n this.dblclick(event);\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel = (event) => {\n if (this.#withScroll) {\n this.#scrollWhell.wheel(event);\n }\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n // call app handler if we are not in the middle of a draw\n if (!this.#isDrawing) {\n event.context = 'Draw';\n this.#app.onKeydown(event);\n }\n\n // press delete or backspace key\n const annotation = this.#shapeHandler.getEditorAnnotation();\n if ((event.key === 'Delete' ||\n event.key === 'Backspace') &&\n typeof annotation !== 'undefined') {\n const layerGroup = this.#app.getActiveLayerGroup();\n const drawLayer = layerGroup.getActiveDrawLayer();\n const drawController = drawLayer.getDrawController();\n\n // create remove annotation command\n const command = new RemoveAnnotationCommand(annotation, drawController);\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command: triggers draw remove\n command.execute();\n\n // reset cursor\n this.#shapeHandler.onMouseOutShapeGroup();\n }\n\n // escape key: exit shape creation\n if (event.key === 'Escape' && this.#tmpShapeGroup !== null) {\n const konvaLayer = this.#tmpShapeGroup.getLayer();\n // reset temporary shape group\n this.#tmpShapeGroup.destroy();\n this.#tmpShapeGroup = null;\n // set state\n this.#setToNotDrawingState();\n // redraw\n konvaLayer.draw();\n }\n };\n\n /**\n * Update the current draw with new points.\n *\n * @param {Point2D[]} tmpPoints The array of new points.\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #onNewPoints(tmpPoints, layerGroup) {\n // remove temporary shape draw\n if (this.#tmpShapeGroup) {\n this.#tmpShapeGroup.destroy();\n this.#tmpShapeGroup = null;\n }\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n const konvaLayer = drawLayer.getKonvaLayer();\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n // auto mode: vary shape colour with layer id\n if (this.#autoShapeColour) {\n const colours = [\n '#ffff80', '#ff80ff', '#80ffff', '#80ff80', '8080ff', 'ff8080'\n ];\n // warning: depends on layer id nomenclature\n const viewLayerId = viewLayer.getId();\n const layerId = viewLayerId.substring(viewLayerId.length - 1);\n // expecting one draw layer per view layer\n const layerIndex = parseInt(layerId, 10) / 2;\n const colour = colours[layerIndex];\n if (typeof colour !== 'undefined') {\n this.#style.setLineColour(colour);\n }\n }\n\n // create tmp annotation\n const annotation = new Annotation();\n annotation.colour = this.#style.getLineColour();\n annotation.setViewController(viewController);\n // set annotation shape\n this.#currentFactory.setAnnotationMathShape(annotation, tmpPoints);\n // create shape group\n this.#tmpShapeGroup =\n this.#currentFactory.createShapeGroup(annotation, this.#style);\n\n // do not listen during creation\n const shape = this.#tmpShapeGroup.getChildren(isNodeNameShape)[0];\n shape.listening(false);\n konvaLayer.listening(false);\n // draw shape\n konvaLayer.add(this.#tmpShapeGroup);\n konvaLayer.draw();\n }\n\n /**\n * Create the final shape from a point list.\n *\n * @param {Point2D[]} finalPoints The array of points.\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #onFinalPoints(finalPoints, layerGroup) {\n // remove temporary shape draw\n // (has to be done before sending drawcreate event)\n if (this.#tmpShapeGroup) {\n this.#tmpShapeGroup.destroy();\n this.#tmpShapeGroup = null;\n }\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n const konvaLayer = drawLayer.getKonvaLayer();\n const drawController = drawLayer.getDrawController();\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n // create final annotation\n const annotation = new Annotation();\n annotation.colour = this.#style.getLineColour();\n annotation.id = guid();\n annotation.setViewController(viewController);\n // set annotation shape\n this.#currentFactory.setAnnotationMathShape(annotation, finalPoints);\n\n if (!drawController.hasAnnotationMeta('StudyInstanceUID')) {\n drawController.setAnnotationMeta(\n 'StudyInstanceUID', viewController.getStudyInstanceUID());\n }\n\n // create add annotation command\n const command = new AddAnnotationCommand(annotation, drawController);\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command: triggers draw creation\n command.execute();\n\n // re-activate layer\n konvaLayer.listening(true);\n }\n\n\n /**\n * Get a layerGroup position callback.\n *\n * TODO: check needo for store item removal.\n *\n * @param {LayerGroup} layerGroup The origin layer group.\n * @returns {Function} The layerGroup position callback.\n */\n #getPositionCallback(layerGroup) {\n const divId = layerGroup.getDivId();\n if (typeof this.#callbackStore[divId] === 'undefined') {\n this.#callbackStore[divId] = () => {\n this.#updateDrawLayer(layerGroup);\n };\n }\n return this.#callbackStore[divId];\n }\n\n /**\n * Activate the tool.\n *\n * @param {boolean} flag The flag to activate or not.\n */\n activate(flag) {\n // reset shape editor\n this.#shapeHandler.disableAndResetEditor();\n\n // get the current draw layer\n const layerGroup = this.#app.getActiveLayerGroup();\n if (typeof layerGroup === 'undefined') {\n throw new Error('No active layerGroup to activate draw on');\n }\n this.#activateCurrentPositionShapes(flag, layerGroup);\n // listen to app change to update the draw layer\n if (flag) {\n // TODO: merge with drawLayer.activateDrawLayer?\n this.#app.addEventListener('positionchange',\n this.#getPositionCallback(layerGroup)\n );\n } else {\n // reset layer shape handler\n const drawLayer = layerGroup.getActiveDrawLayer();\n if (typeof drawLayer !== 'undefined') {\n drawLayer.setShapeHandler(undefined);\n }\n\n // reset shape and cursor\n this.#shapeHandler.onMouseOutShapeGroup();\n // remove listeners\n this.#app.removeEventListener('positionchange',\n this.#getPositionCallback(layerGroup)\n );\n }\n }\n\n /**\n * Update the draw layer.\n *\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #updateDrawLayer(layerGroup) {\n // activate the shape at current position\n this.#activateCurrentPositionShapes(true, layerGroup);\n }\n\n /**\n * Activate shapes at current position.\n *\n * @param {boolean} visible Set the draw layer visible or not.\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #activateCurrentPositionShapes(visible, layerGroup) {\n const drawLayer = layerGroup.getActiveDrawLayer();\n if (typeof drawLayer === 'undefined') {\n return;\n }\n const drawController = drawLayer.getDrawController();\n\n // get shape groups at the current position\n const shapeGroups =\n drawLayer.getCurrentPosGroup().getChildren();\n\n // set shape display properties\n if (visible) {\n // activate shape listeners\n shapeGroups.forEach((group) => {\n if (group instanceof Konva.Group) {\n const annotation = drawController.getAnnotation(group.id());\n this.#shapeHandler.addShapeListeners(drawLayer, group, annotation);\n }\n });\n } else {\n // de-activate shape listeners\n shapeGroups.forEach((group) => {\n if (group instanceof Konva.Group) {\n this.#shapeHandler.removeShapeListeners(group);\n }\n });\n }\n\n const notCurrentPosGroup =\n drawLayer.getNonCurrentPosGroup();\n for (const posGroup of notCurrentPosGroup) {\n posGroup.getChildren().forEach((group) => {\n this.#shapeHandler.removeShapeListeners(group);\n });\n }\n\n // draw\n const konvaLayer = drawLayer.getKonvaLayer();\n if (shapeGroups.length !== 0) {\n konvaLayer.listening(true);\n }\n konvaLayer.draw();\n }\n\n /**\n * Set the tool configuration options.\n *\n * @param {object} options The list of shape names amd classes.\n */\n setOptions(options) {\n // save the options as the shape factory list\n this.#shapeFactoryList = options;\n }\n\n /**\n * Get the type of tool options: here 'factory' since the shape\n * list contains factories to create each possible shape.\n *\n * @returns {string} The type.\n */\n getOptionsType() {\n return 'factory';\n }\n\n /**\n * Set the tool live features: shape colour and shape name.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.autoShapeColour !== 'undefined') {\n this.#autoShapeColour = features.autoShapeColour;\n }\n if (typeof features.shapeColour !== 'undefined') {\n this.#style.setLineColour(features.shapeColour);\n this.#autoShapeColour = false;\n }\n if (typeof features.shapeName !== 'undefined') {\n // check if we have it\n if (!this.hasShape(features.shapeName)) {\n throw new Error('Unknown shape: \\'' + features.shapeName + '\\'');\n }\n this.#shapeName = features.shapeName;\n }\n if (typeof features.mouseOverCursor !== 'undefined') {\n this.#shapeHandler.storeMouseOverCursor(features.mouseOverCursor);\n }\n if (typeof features.withScroll !== 'undefined') {\n this.#withScroll = features.withScroll;\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {string[]} The list of event names.\n */\n getEventNames() {\n return [\n 'drawcreate', 'drawchange', 'drawmove', 'drawdelete'\n ];\n }\n\n /**\n * Add an event listener on the app.\n *\n * @param {string} type The event type.\n * @param {Function} listener The function associated with the provided\n * event type.\n */\n addEventListener(type, listener) {\n if (typeof this.#listeners[type] === 'undefined') {\n this.#listeners[type] = [];\n }\n this.#listeners[type].push(listener);\n }\n\n /**\n * Remove an event listener from the app.\n *\n * @param {string} type The event type.\n * @param {Function} listener The function associated with the provided\n * event type.\n */\n removeEventListener(type, listener) {\n if (typeof this.#listeners[type] === 'undefined') {\n return;\n }\n for (let i = 0; i < this.#listeners[type].length; ++i) {\n if (this.#listeners[type][i] === listener) {\n this.#listeners[type].splice(i, 1);\n }\n }\n }\n\n // Private Methods -----------------------------------------------------------\n\n /**\n * Fire an event: call all associated listeners.\n *\n * @param {object} event The event to fire.\n */\n // #fireEvent = (event) => {\n // if (typeof this.#listeners[event.type] === 'undefined') {\n // return;\n // }\n // for (let i = 0; i < this.#listeners[event.type].length; ++i) {\n // this.#listeners[event.type][i](event);\n // }\n // };\n\n /**\n * Check if the shape is in the shape list.\n *\n * @param {string} name The name of the shape.\n * @returns {boolean} True if there is a factory for the shape.\n */\n hasShape(name) {\n return typeof this.#shapeFactoryList[name] !== 'undefined';\n }\n\n} // Draw class\n","import {DrawGroupCommand} from '../tools/drawCommands';\nimport {RoiFactory} from '../tools/roi';\nimport {guid} from '../math/stats';\nimport {Point2D} from '../math/point';\nimport {Style} from '../gui/style';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {ListenerHandler} from '../utils/listen';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {LayerGroup} from '../gui/layerGroup';\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * The magic wand namespace.\n *\n * Ref: {@link https://github.com/Tamersoul/magic-wand-js}.\n *\n * @external MagicWand\n */\nimport MagicWand from 'magic-wand-tool';\n\n/**\n * Floodfill painting tool.\n */\nexport class Floodfill {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Original variables from external library. Used as in the lib example.\n *\n * @type {number}\n */\n #blurRadius = 5;\n /**\n * Original variables from external library. Used as in the lib example.\n *\n * @type {number}\n */\n #simplifyTolerant = 0;\n\n /**\n * Original variables from external library. Used as in the lib example.\n *\n * @type {number}\n */\n #simplifyCount = 2000;\n\n /**\n * Canvas info.\n *\n * @type {object}\n */\n #imageInfo = null;\n\n /**\n * Object created by MagicWand lib containing border points.\n *\n * @type {object}\n */\n #mask = null;\n\n /**\n * Threshold default tolerance of the tool border.\n *\n * @type {number}\n */\n #initialthreshold = 10;\n\n /**\n * Threshold tolerance of the tool border.\n *\n * @type {number}\n */\n #currentthreshold = null;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n /**\n * Draw command.\n *\n * @type {object}\n */\n #command = null;\n\n /**\n * Current shape group.\n *\n * @type {object}\n */\n #shapeGroup = null;\n\n /**\n * Coordinates of the fist mousedown event.\n *\n * @type {object}\n */\n #initialpoint;\n\n /**\n * Floodfill border.\n *\n * @type {object}\n */\n #border = null;\n\n /**\n * List of parent points.\n *\n * @type {Array}\n */\n #parentPoints = [];\n\n /**\n * Assistant variable to paint border on all slices.\n *\n * @type {boolean}\n */\n #extender = false;\n\n /**\n * Timeout for painting on mousemove.\n *\n */\n #painterTimeout;\n\n /**\n * Drawing style.\n *\n * @type {Style}\n */\n #style = new Style();\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Set extend option for painting border on all slices.\n *\n * @param {boolean} bool The option to set.\n */\n setExtend(bool) {\n this.#extender = bool;\n }\n\n /**\n * Get extend option for painting border on all slices.\n *\n * @returns {boolean} The actual value of of the variable to use Floodfill\n * on museup.\n */\n getExtend() {\n return this.#extender;\n }\n\n /**\n * Get (x, y) coordinates referenced to the canvas.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n * @returns {Scalar2D} The coordinates as a {x,y}.\n */\n #getIndex = (point, divId) => {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const index = viewLayer.displayToPlaneIndex(point);\n return {\n x: index.get(0),\n y: index.get(1)\n };\n };\n\n /**\n * Calculate border.\n *\n * @param {object} points The input points.\n * @param {number} threshold The threshold of the floodfill.\n * @param {boolean} simple Return first points or a list.\n * @returns {Array} The parent points.\n */\n #calcBorder(points, threshold, simple) {\n\n this.#parentPoints = [];\n const image = {\n data: this.#imageInfo.data,\n width: this.#imageInfo.width,\n height: this.#imageInfo.height,\n bytes: 4\n };\n\n this.#mask = MagicWand.floodFill(image, points.x, points.y, threshold);\n this.#mask = MagicWand.gaussBlurOnlyBorder(this.#mask, this.#blurRadius);\n\n let cs = MagicWand.traceContours(this.#mask);\n cs = MagicWand.simplifyContours(\n cs, this.#simplifyTolerant, this.#simplifyCount);\n\n if (cs.length > 0 && cs[0].points[0].x) {\n if (simple) {\n return cs[0].points;\n }\n for (let j = 0, icsl = cs[0].points.length; j < icsl; j++) {\n this.#parentPoints.push(new Point2D(\n cs[0].points[j].x,\n cs[0].points[j].y\n ));\n }\n return this.#parentPoints;\n } else {\n return [];\n }\n }\n\n /**\n * Paint Floodfill.\n *\n * @param {object} point The start point.\n * @param {number} threshold The border threshold.\n * @param {LayerGroup} layerGroup The origin layer group.\n * @returns {boolean} False if no border.\n */\n #paintBorder(point, threshold, layerGroup) {\n // Calculate the border\n this.#border = this.#calcBorder(point, threshold, false);\n // Paint the border\n if (this.#border) {\n const factory = new RoiFactory();\n this.#shapeGroup = factory.create(this.#border, this.#style);\n this.#shapeGroup.id(guid());\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n\n // get the position group\n const posGroup = drawLayer.getCurrentPosGroup();\n // add shape group to position group\n posGroup.add(this.#shapeGroup);\n\n // draw shape command\n this.#command = new DrawGroupCommand(\n this.#shapeGroup,\n 'floodfill',\n drawLayer\n );\n this.#command.onExecute = this.#fireEvent;\n this.#command.onUndo = this.#fireEvent;\n // // draw\n this.#command.execute();\n // save it in undo stack\n this.#app.addToUndoStack(this.#command);\n\n return true;\n } else {\n return false;\n }\n }\n\n /**\n * Create Floodfill in all the prev and next slices while border is found.\n *\n * @param {number} ini The first slice to extend to.\n * @param {number} end The last slice to extend to.\n * @param {object} layerGroup The origin layer group.\n */\n extend(ini, end, layerGroup) {\n //avoid errors\n if (!this.#initialpoint) {\n throw '\\'initialpoint\\' not found. User must click before use extend!';\n }\n // remove previous draw\n if (this.#shapeGroup) {\n this.#shapeGroup.destroy();\n }\n\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n\n const pos = viewController.getCurrentIndex();\n const imageSize = viewController.getImageSize();\n const threshold = this.#currentthreshold || this.#initialthreshold;\n\n // Iterate over the next images and paint border on each slice.\n for (let i = pos.get(2),\n len = end\n ? end : imageSize.get(2);\n i < len; i++) {\n if (!this.#paintBorder(this.#initialpoint, threshold, layerGroup)) {\n break;\n }\n viewController.incrementIndex(2);\n }\n viewController.setCurrentPosition(pos);\n\n // Iterate over the prev images and paint border on each slice.\n for (let j = pos.get(2), jl = ini ? ini : 0; j > jl; j--) {\n if (!this.#paintBorder(this.#initialpoint, threshold, layerGroup)) {\n break;\n }\n viewController.decrementIndex(2);\n }\n viewController.setCurrentPosition(pos);\n }\n\n /**\n * Modify tolerance threshold and redraw ROI.\n *\n * @param {number} modifyThreshold The new threshold.\n * @param {object} shape The shape to update.\n */\n modifyThreshold(modifyThreshold, shape) {\n\n if (!shape && this.#shapeGroup) {\n shape = this.#shapeGroup.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n } else {\n throw 'No shape found';\n }\n\n clearTimeout(this.#painterTimeout);\n this.#painterTimeout = setTimeout(() => {\n this.#border = this.#calcBorder(\n this.#initialpoint, modifyThreshold, true);\n if (!this.#border) {\n return false;\n }\n const arr = [];\n for (let i = 0, bl = this.#border.length; i < bl; ++i) {\n arr.push(this.#border[i].x);\n arr.push(this.#border[i].y);\n }\n shape.setPoints(arr);\n const shapeLayer = shape.getLayer();\n shapeLayer.draw();\n this.onThresholdChange(modifyThreshold);\n }, 100);\n }\n\n /**\n * Event fired when threshold change.\n *\n * @param {number} _value Current threshold.\n */\n onThresholdChange(_value) {\n // Defaults do nothing\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #start(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const drawLayer = layerGroup.getActiveDrawLayer();\n\n this.#imageInfo = viewLayer.getImageData();\n if (!this.#imageInfo) {\n logger.error('No image found');\n return;\n }\n\n // update zoom scale\n this.#style.setZoomScale(\n drawLayer.getKonvaLayer().getAbsoluteScale());\n\n this.#started = true;\n this.#initialpoint = this.#getIndex(point, divId);\n this.#paintBorder(this.#initialpoint, this.#initialthreshold, layerGroup);\n this.onThresholdChange(this.#initialthreshold);\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n\n const movedpoint = this.#getIndex(point, divId);\n this.#currentthreshold = Math.round(Math.sqrt(\n Math.pow((this.#initialpoint.x - movedpoint.x), 2) +\n Math.pow((this.#initialpoint.y - movedpoint.y), 2)) / 2);\n this.#currentthreshold = this.#currentthreshold < this.#initialthreshold\n ? this.#initialthreshold\n : this.#currentthreshold - this.#initialthreshold;\n this.modifyThreshold(this.#currentthreshold);\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n // TODO: re-activate\n // if (this.#extender) {\n // const layerDetails = getLayerDetailsFromEvent(event);\n // const layerGroup =\n // this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n // this.extend(layerGroup);\n // }\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Floodfill';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} bool The flag to activate or not.\n */\n activate(bool) {\n if (bool) {\n // init with the app window scale\n this.#style.setBaseScale(this.#app.getBaseScale());\n // set the default to the first in the list\n this.setFeatures({shapeColour: this.#style.getLineColour()});\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {Array} The list of event names.\n */\n getEventNames() {\n return ['drawcreate', 'drawchange', 'drawmove', 'drawdelete'];\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Set the tool live features: shape colour.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.shapeColour !== 'undefined') {\n this.#style.setLineColour(features.shapeColour);\n }\n }\n\n} // Floodfill class\n","import {Style} from '../gui/style';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {Point2D} from '../math/point';\nimport {Path} from '../math/path';\nimport {Scissors} from '../math/scissors';\nimport {guid} from '../math/stats';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {ListenerHandler} from '../utils/listen';\nimport {RoiFactory} from '../tools/roi';\nimport {DrawGroupCommand} from '../tools/drawCommands';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Livewire painting tool.\n */\nexport class Livewire {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Draw command.\n *\n * @type {object}\n */\n #command = null;\n\n /**\n * Current shape group.\n *\n * @type {object}\n */\n #shapeGroup = null;\n\n /**\n * Drawing style.\n *\n * @type {Style}\n */\n #style = new Style();\n\n /**\n * Path storage. Paths are stored in reverse order.\n *\n * @type {Path}\n */\n #path = new Path();\n\n /**\n * Current path storage. Paths are stored in reverse order.\n *\n * @type {Path}\n */\n #currentPath = new Path();\n\n /**\n * List of parent points.\n *\n * @type {Array}\n */\n #parentPoints = [];\n\n /**\n * Tolerance.\n *\n * @type {number}\n */\n #tolerance = 5;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Clear the parent points list.\n *\n * @param {object} imageSize The image size.\n */\n #clearParentPoints(imageSize) {\n const nrows = imageSize.get(1);\n for (let i = 0; i < nrows; ++i) {\n this.#parentPoints[i] = [];\n }\n }\n\n /**\n * Clear the stored paths.\n */\n #clearPaths() {\n this.#path = new Path();\n this.#currentPath = new Path();\n }\n\n /**\n * Scissor representation.\n *\n * @type {Scissors}\n */\n #scissors = new Scissors();\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #start(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const imageSize = viewLayer.getViewController().getImageSize();\n const index = viewLayer.displayToPlaneIndex(point);\n\n // first time\n if (!this.#started) {\n this.#started = true;\n this.#startPoint = new Point2D(index.get(0), index.get(1));\n // clear vars\n this.#clearPaths();\n this.#clearParentPoints(imageSize);\n this.#shapeGroup = null;\n // update zoom scale\n const drawLayer = layerGroup.getActiveDrawLayer();\n this.#style.setZoomScale(\n drawLayer.getKonvaLayer().getAbsoluteScale());\n // do the training from the first point\n const p = {x: index.get(0), y: index.get(1)};\n this.#scissors.doTraining(p);\n // add the initial point to the path\n const p0 = new Point2D(index.get(0), index.get(1));\n this.#path.addPoint(p0);\n this.#path.addControlPoint(p0);\n } else {\n const diffX = Math.abs(index.get(0) - this.#startPoint.getX());\n const diffY = Math.abs(index.get(1) - this.#startPoint.getY());\n // final point: at 'tolerance' of the initial point\n if (diffX < this.#tolerance &&\n diffY < this.#tolerance) {\n // finish\n this.#finishShape();\n } else {\n // anchor point\n this.#path = this.#currentPath;\n this.#clearParentPoints(imageSize);\n const pn = {x: index.get(0), y: index.get(1)};\n this.#scissors.doTraining(pn);\n this.#path.addControlPoint(this.#currentPath.getPoint(0));\n }\n }\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const index = viewLayer.displayToPlaneIndex(point);\n\n // set the point to find the path to\n let p = {x: index.get(0), y: index.get(1)};\n this.#scissors.setPoint(p);\n // do the work\n let results = [];\n let stop = false;\n while (!this.#parentPoints[p.y][p.x] && !stop) {\n results = this.#scissors.doWork();\n\n if (results.length === 0) {\n stop = true;\n } else {\n // fill parents\n for (let i = 0; i < results.length - 1; i += 2) {\n const _p = results[i];\n const _q = results[i + 1];\n this.#parentPoints[_p.y][_p.x] = _q;\n }\n }\n }\n\n // get the path\n this.#currentPath = new Path();\n stop = false;\n while (p && !stop) {\n this.#currentPath.addPoint(new Point2D(p.x, p.y));\n if (!this.#parentPoints[p.y]) {\n stop = true;\n } else {\n if (!this.#parentPoints[p.y][p.x]) {\n stop = true;\n } else {\n p = this.#parentPoints[p.y][p.x];\n }\n }\n }\n this.#currentPath.appenPath(this.#path);\n\n // remove previous draw\n if (this.#shapeGroup) {\n this.#shapeGroup.destroy();\n }\n // create shape\n const factory = new RoiFactory();\n this.#shapeGroup = factory.create(\n this.#currentPath.pointArray, this.#style);\n this.#shapeGroup.id(guid());\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n\n // get the position group\n const posGroup = drawLayer.getCurrentPosGroup();\n // add shape group to position group\n posGroup.add(this.#shapeGroup);\n\n // draw shape command\n this.#command = new DrawGroupCommand(\n this.#shapeGroup,\n 'livewire',\n drawLayer\n );\n // draw\n this.#command.execute();\n }\n\n /**\n * Finish a livewire (roi) shape.\n */\n #finishShape() {\n // fire creation event (was not propagated during draw)\n this.#fireEvent({\n type: 'drawcreate',\n id: this.#shapeGroup.id()\n });\n // listen\n this.#command.onExecute = this.#fireEvent;\n this.#command.onUndo = this.#fireEvent;\n // save command in undo stack\n this.#app.addToUndoStack(this.#command);\n // set flag\n this.#started = false;\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup(_event) {\n // nothing to do\n }\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n // nothing to do\n };\n\n /**\n * Handle double click event.\n *\n * @param {object} _event The double click event.\n */\n dblclick = (_event) => {\n this.#finishShape();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n // nothing to do\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Livewire';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} bool The flag to activate or not.\n */\n activate(bool) {\n // start scissors if displayed\n if (bool) {\n const layerGroup = this.#app.getActiveLayerGroup();\n const viewLayer = layerGroup.getActiveViewLayer();\n\n //scissors = new Scissors();\n const imageSize = viewLayer.getViewController().getImageSize();\n this.#scissors.setDimensions(\n imageSize.get(0),\n imageSize.get(1));\n this.#scissors.setData(viewLayer.getImageData().data);\n\n // init with the app window scale\n this.#style.setBaseScale(this.#app.getBaseScale());\n // set the default to the first in the list\n this.setFeatures({shapeColour: this.#style.getLineColour()});\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {Array} The list of event names.\n */\n getEventNames() {\n return ['drawcreate', 'drawchange', 'drawmove', 'drawdelete'];\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Set the tool live features: shape colour.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.shapeColour !== 'undefined') {\n this.#style.setLineColour(features.shapeColour);\n }\n }\n\n} // Livewire class\n","import {Point2D} from '../math/point';\nimport {Line, getPerpendicularLine, getAngle} from '../math/line';\nimport {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Arrow factory.\n */\nexport class ArrowFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'line-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create an arrow shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const line = new Line(points[0], points[1]);\n // draw shape\n const kshape = new Konva.Line({\n points: [line.getBegin().getX(),\n line.getBegin().getY(),\n line.getEnd().getX(),\n line.getEnd().getY()],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n // larger hitfunc\n const tickLen = style.applyZoomScale(10).x;\n const linePerp0 = getPerpendicularLine(line, points[0], tickLen);\n const linePerp1 = getPerpendicularLine(line, points[1], tickLen);\n kshape.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kshape);\n });\n // triangle\n const beginTy = new Point2D(\n line.getBegin().getX(),\n line.getBegin().getY() - 10);\n const verticalLine = new Line(line.getBegin(), beginTy);\n const angle = getAngle(line, verticalLine);\n const angleRad = angle * Math.PI / 180;\n const radius = Math.abs(style.applyZoomScale(8).x);\n const kpoly = new Konva.RegularPolygon({\n x: line.getBegin().getX() + radius * Math.sin(angleRad),\n y: line.getBegin().getY() + radius * Math.cos(angleRad),\n sides: 3,\n radius: radius,\n rotation: -angle,\n fill: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape-triangle'\n });\n // quantification\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.arrow[modality] !== 'undefined') {\n textExpr = defaults.labelText.arrow[modality];\n } else {\n textExpr = defaults.labelText.arrow['*'];\n }\n ktext.setText(textExpr);\n // augment text with meta data\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: {}\n };\n // label\n const dX = line.getBegin().getX() > line.getEnd().getX() ? 0 : -1;\n const dY = line.getBegin().getY() > line.getEnd().getY() ? -1 : 0;\n const klabel = new Konva.Label({\n x: line.getEnd().getX() + dX * ktext.width(),\n y: line.getEnd().getY() + dY * style.applyZoomScale(15).y,\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(kpoly);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update an arrow shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n points[0] + shape.x(), points[1] + shape.y(), 'begin', style\n ));\n anchors.push(getDefaultAnchor(\n points[2] + shape.x(), points[3] + shape.y(), 'end', style\n ));\n return anchors;\n }\n\n /**\n * Update an arrow shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated triangle shape\n const ktriangle = group.getChildren(function (node) {\n return node.name() === 'shape-triangle';\n })[0];\n if (!(ktriangle instanceof Konva.RegularPolygon)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // find special points\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n // update special points\n switch (anchor.id()) {\n case 'begin':\n begin.x(anchor.x());\n begin.y(anchor.y());\n break;\n case 'end':\n end.x(anchor.x());\n end.y(anchor.y());\n break;\n }\n // update shape and compensate for possible drag\n // note: shape.position() and shape.size() won't work...\n const bx = begin.x() - kline.x();\n const by = begin.y() - kline.y();\n const ex = end.x() - kline.x();\n const ey = end.y() - kline.y();\n kline.points([bx, by, ex, ey]);\n // new line\n const p2d0 = new Point2D(begin.x(), begin.y());\n const p2d1 = new Point2D(end.x(), end.y());\n const line = new Line(p2d0, p2d1);\n // larger hitfunc\n const p2b = new Point2D(bx, by);\n const p2e = new Point2D(ex, ey);\n const tickLen = style.applyZoomScale(10).x;\n const linePerp0 = getPerpendicularLine(line, p2b, tickLen);\n const linePerp1 = getPerpendicularLine(line, p2e, tickLen);\n kline.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kline);\n });\n // udate triangle\n const beginTy = new Point2D(\n line.getBegin().getX(),\n line.getBegin().getY() - 10);\n const verticalLine = new Line(line.getBegin(), beginTy);\n const angle = getAngle(line, verticalLine);\n const angleRad = angle * Math.PI / 180;\n ktriangle.x(\n line.getBegin().getX() + ktriangle.radius() * Math.sin(angleRad));\n ktriangle.y(\n line.getBegin().getY() + ktriangle.radius() * Math.cos(angleRad));\n ktriangle.rotation(-angle);\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n ktext.setText(ktext.meta.textExpr);\n // update position\n const dX = line.getBegin().getX() > line.getEnd().getX() ? 0 : -1;\n const dY = line.getBegin().getY() > line.getEnd().getY() ? -1 : 0;\n const textPos = {\n x: line.getEnd().getX() + dX * ktext.width(),\n y: line.getEnd().getY() + dY * style.applyZoomScale(15).y\n };\n klabel.position(textPos);\n }\n\n} // class ArrowFactory\n","import {Ellipse} from '../math/ellipse';\nimport {Point2D} from '../math/point';\nimport {getFlags, replaceFlags} from '../utils/string';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Ellipse factory.\n */\nexport class EllipseFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'ellipse-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create an ellipse shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the ellipse.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(\n points, style, viewController) {\n // calculate radius\n const a = Math.abs(points[0].getX() - points[1].getX());\n const b = Math.abs(points[0].getY() - points[1].getY());\n // physical shape\n const ellipse = new Ellipse(points[0], a, b);\n // draw shape\n const radius = {x: ellipse.getA(), y: ellipse.getB()};\n const kshape = new Konva.Ellipse({\n x: ellipse.getCenter().getX(),\n y: ellipse.getCenter().getY(),\n radius: radius,\n radiusX: radius.x,\n radiusY: radius.y,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n // quantification\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.ellipse[modality] !== 'undefined') {\n textExpr = defaults.labelText.ellipse[modality];\n } else {\n textExpr = defaults.labelText.ellipse['*'];\n }\n const quant = ellipse.quantify(\n viewController,\n getFlags(textExpr));\n ktext.setText(replaceFlags(textExpr, quant));\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: quant\n };\n // label\n const klabel = new Konva.Label({\n x: ellipse.getCenter().getX() - ellipse.getA(),\n y: ellipse.getCenter().getY() + ellipse.getB(),\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // debug shadow\n let kshadow;\n if (DRAW_DEBUG) {\n kshadow = this.#getShadowEllipse(ellipse);\n }\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n if (kshadow) {\n group.add(kshadow);\n }\n group.add(klabel);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update an ellipse shape.\n *\n * @param {Konva.Ellipse} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const ellipseX = shape.x();\n const ellipseY = shape.y();\n const radius = shape.radius();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n ellipseX - radius.x, ellipseY, 'left', style\n ));\n anchors.push(getDefaultAnchor(\n ellipseX + radius.x, ellipseY, 'right', style\n ));\n anchors.push(getDefaultAnchor(\n ellipseX, ellipseY + radius.y, 'bottom', style\n ));\n anchors.push(getDefaultAnchor(\n ellipseX, ellipseY - radius.y, 'top', style\n ));\n return anchors;\n }\n\n /**\n * Update an ellipse shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} _style The app style.\n * @param {ViewController} viewController The associated view controller.\n */\n update(anchor, _style, viewController) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const kellipse = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kellipse instanceof Konva.Ellipse)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n // find special points\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n // debug shadow\n let kshadow;\n if (DRAW_DEBUG) {\n kshadow = group.getChildren(function (node) {\n return node.name() === 'shadow';\n })[0];\n }\n\n // ellipse center\n const center = {\n x: kellipse.x(),\n y: kellipse.y()\n };\n\n let radiusX;\n let radiusY;\n\n // update 'self' (undo case) and special points\n switch (anchor.id()) {\n case 'left':\n radiusX = center.x - anchor.x();\n radiusY = top.y() - center.y;\n // update self (while blocking y)\n left.x(anchor.x());\n left.y(right.y());\n // update others\n right.x(center.x + radiusX);\n break;\n case 'right':\n radiusX = anchor.x() - center.x;\n radiusY = top.y() - center.y;\n // update self (while blocking y)\n right.x(anchor.x());\n right.y(left.y());\n // update others\n left.x(center.x - radiusX);\n break;\n case 'bottom':\n radiusX = center.x - left.x();\n radiusY = anchor.y() - center.y;\n // update self (while blocking x)\n bottom.x(top.x());\n bottom.y(anchor.y());\n // update others\n top.y(center.y - radiusY);\n break;\n case 'top':\n radiusX = center.x - left.x();\n radiusY = center.y - anchor.y();\n // update self (while blocking x)\n top.x(bottom.x());\n top.y(anchor.y());\n // update others\n bottom.y(center.y + radiusY);\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n // update shape\n kellipse.position(center);\n const radiusAbs = {\n x: Math.abs(radiusX),\n y: Math.abs(radiusY)\n };\n if (radiusAbs) {\n kellipse.radius(radiusAbs);\n }\n // new ellipse\n const centerPoint = new Point2D(\n group.x() + center.x,\n group.y() + center.y\n );\n const ellipse = new Ellipse(centerPoint, radiusAbs.x, radiusAbs.y);\n\n // debug shadow\n if (kshadow) {\n // remove previous\n kshadow.destroy();\n // add new\n group.add(this.#getShadowEllipse(ellipse, group));\n }\n\n // update label position\n const textPos = {\n x: center.x - radiusAbs.x,\n y: center.y + radiusAbs.y\n };\n klabel.position(textPos);\n\n // update quantification\n this.#updateEllipseQuantification(group, viewController);\n }\n\n /**\n * Update the quantification of an Ellipse.\n *\n * @param {Konva.Group} group The group with the shape.\n * @param {ViewController} viewController The associated view controller.\n */\n updateQuantification(group, viewController) {\n this.#updateEllipseQuantification(group, viewController);\n }\n\n /**\n * Update the quantification of an Ellipse (as a static\n * function to be used in update).\n *\n * @param {Konva.Group} group The group with the shape.\n * @param {ViewController} viewController The associated view controller.\n */\n #updateEllipseQuantification(group, viewController) {\n // associated shape\n const kellipse = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kellipse instanceof Konva.Ellipse)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n\n // positions: add possible group offset\n const centerPoint = new Point2D(\n group.x() + kellipse.x(),\n group.y() + kellipse.y()\n );\n // circle\n const ellipse = new Ellipse(\n centerPoint, kellipse.radius().x, kellipse.radius().y);\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n const quantification = ellipse.quantify(\n viewController,\n getFlags(meta.textExpr));\n ktext.setText(replaceFlags(meta.textExpr, quantification));\n // update meta\n meta.quantification = quantification;\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Ellipse} ellipse The ellipse to shadow.\n * @param {Konva.Group} [group] The associated group.\n * @returns {Konva.Group} The shadow konva group.\n */\n #getShadowEllipse(ellipse, group) {\n // possible group offset\n let offsetX = 0;\n let offsetY = 0;\n if (typeof group !== 'undefined') {\n offsetX = group.x();\n offsetY = group.y();\n }\n const kshadow = new Konva.Group();\n kshadow.name('shadow');\n const regions = ellipse.getRound();\n for (let i = 0; i < regions.length; ++i) {\n const region = regions[i];\n const minX = region[0][0];\n const minY = region[0][1];\n const maxX = region[1][0];\n const pixelLine = new Konva.Rect({\n x: minX - offsetX,\n y: minY - offsetY,\n width: maxX - minX,\n height: 1,\n fill: 'grey',\n strokeWidth: 0,\n strokeScaleEnabled: false,\n opacity: 0.3,\n name: 'shadow-element'\n });\n kshadow.add(pixelLine);\n }\n return kshadow;\n }\n\n} // class EllipseFactory\n","import {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * FreeHand factory.\n */\nexport class FreeHandFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'freeHand-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number|undefined} The number of points.\n */\n getNPoints() {\n // undefined to end with double click\n return undefined;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 25;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a roi shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // points stored the Konvajs way\n const arr = [];\n for (let i = 0; i < points.length; ++i) {\n arr.push(points[i].getX());\n arr.push(points[i].getY());\n }\n // draw shape\n const kshape = new Konva.Line({\n points: arr,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape',\n tension: 0.5\n });\n\n // text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.freeHand[modality] !== 'undefined') {\n textExpr = defaults.labelText.freeHand[modality];\n } else {\n textExpr = defaults.labelText.freeHand['*'];\n }\n ktext.setText(textExpr);\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: {}\n };\n\n // label\n const klabel = new Konva.Label({\n x: points[0].getX(),\n y: points[0].getY() + style.scale(10),\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update a free hand shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n for (let i = 0; i < points.length; i = i + 2) {\n const px = points[i] + shape.x();\n const py = points[i + 1] + shape.y();\n const name = i.toString();\n anchors.push(getDefaultAnchor(\n px, py, name, style\n ));\n }\n return anchors;\n }\n\n /**\n * Update a FreeHand shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n\n // update self\n const point = group.getChildren(function (node) {\n return node.id() === anchor.id();\n })[0];\n point.x(anchor.x());\n point.y(anchor.y());\n // update the roi point and compensate for possible drag\n // (the anchor id is the index of the point in the list)\n const points = kline.points();\n const index = parseInt(anchor.id(), 10);\n points[index] = anchor.x() - kline.x();\n points[index + 1] = anchor.y() - kline.y();\n // concat to make Konva think it is a new array\n kline.points(points.concat());\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n ktext.setText(meta.textExpr);\n // update position\n const textPos = {\n x: points[0] + kline.x(),\n y: points[1] + kline.y() + style.scale(10)\n };\n klabel.position(textPos);\n }\n\n} // class FreeHandFactory\n","import {Line, getAngle} from '../math/line';\nimport {Point2D} from '../math/point';\nimport {replaceFlags} from '../utils/string';\nimport {defaults} from '../app/defaults';\nimport {i18n} from '../utils/i18n';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Protractor factory.\n */\nexport class ProtractorFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'protractor-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 3;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 500;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a protractor shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the protractor.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const line0 = new Line(points[0], points[1]);\n // points stored the Konvajs way\n const pointsArray = [];\n for (let i = 0; i < points.length; ++i) {\n pointsArray.push(points[i].getX());\n pointsArray.push(points[i].getY());\n }\n // draw shape\n const kshape = new Konva.Line({\n points: pointsArray,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n const group = new Konva.Group();\n group.name(this.getGroupName());\n // text and decoration\n if (points.length === 3) {\n const line1 = new Line(points[1], points[2]);\n // larger hitfunc\n kshape.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(points[0].getX(), points[0].getY());\n context.lineTo(points[1].getX(), points[1].getY());\n context.lineTo(points[2].getX(), points[2].getY());\n context.closePath();\n context.fillStrokeShape(kshape);\n });\n // quantification\n let angle = getAngle(line0, line1);\n let inclination = line0.getInclination();\n if (angle > 180) {\n angle = 360 - angle;\n inclination += angle;\n }\n\n // quantification\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.protractor[modality] !== 'undefined') {\n textExpr = defaults.labelText.protractor[modality];\n } else {\n textExpr = defaults.labelText.protractor['*'];\n }\n const quant = {\n angle: {\n value: angle,\n unit: i18n.t('unit.degree')\n }\n };\n ktext.setText(replaceFlags(textExpr, quant));\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: quant\n };\n\n // label\n const midX =\n (line0.getMidpoint().getX() + line1.getMidpoint().getX()) / 2;\n const midY =\n (line0.getMidpoint().getY() + line1.getMidpoint().getY()) / 2;\n const klabel = new Konva.Label({\n x: midX,\n y: midY - style.applyZoomScale(15).y,\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // arc\n const radius = Math.min(line0.getLength(), line1.getLength()) * 33 / 100;\n const karc = new Konva.Arc({\n innerRadius: radius,\n outerRadius: radius,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n angle: angle,\n rotation: -inclination,\n x: points[1].getX(),\n y: points[1].getY(),\n name: 'shape-arc'\n });\n // add to group\n group.add(klabel);\n group.add(karc);\n }\n // add shape to group\n group.add(kshape);\n group.visible(true); // dont inherit\n // return group\n return group;\n }\n\n /**\n * Get anchors to update a protractor shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Array} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n points[0] + shape.x(), points[1] + shape.y(), 'begin', style\n ));\n anchors.push(getDefaultAnchor(\n points[2] + shape.x(), points[3] + shape.y(), 'mid', style\n ));\n anchors.push(getDefaultAnchor(\n points[4] + shape.x(), points[5] + shape.y(), 'end', style\n ));\n return anchors;\n }\n\n /**\n * Update a protractor shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // associated arc\n const karc = group.getChildren(function (node) {\n return node.name() === 'shape-arc';\n })[0];\n if (!(karc instanceof Konva.Arc)) {\n return;\n }\n // find special points\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const mid = group.getChildren(function (node) {\n return node.id() === 'mid';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n // update special points\n switch (anchor.id()) {\n case 'begin':\n begin.x(anchor.x());\n begin.y(anchor.y());\n break;\n case 'mid':\n mid.x(anchor.x());\n mid.y(anchor.y());\n break;\n case 'end':\n end.x(anchor.x());\n end.y(anchor.y());\n break;\n }\n // update shape and compensate for possible drag\n // note: shape.position() and shape.size() won't work...\n const bx = begin.x() - kline.x();\n const by = begin.y() - kline.y();\n const mx = mid.x() - kline.x();\n const my = mid.y() - kline.y();\n const ex = end.x() - kline.x();\n const ey = end.y() - kline.y();\n kline.points([bx, by, mx, my, ex, ey]);\n // larger hitfunc\n kline.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(bx, by);\n context.lineTo(mx, my);\n context.lineTo(ex, ey);\n context.closePath();\n context.fillStrokeShape(kline);\n });\n // update text\n const p2d0 = new Point2D(begin.x(), begin.y());\n const p2d1 = new Point2D(mid.x(), mid.y());\n const p2d2 = new Point2D(end.x(), end.y());\n const line0 = new Line(p2d0, p2d1);\n const line1 = new Line(p2d1, p2d2);\n let angle = getAngle(line0, line1);\n let inclination = line0.getInclination();\n if (angle > 180) {\n angle = 360 - angle;\n inclination += angle;\n }\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n const quantification = {\n angle: {value: angle, unit: i18n.t('unit.degree')}\n };\n ktext.setText(replaceFlags(meta.textExpr, quantification));\n // update meta\n meta.quantification = quantification;\n // update position\n const midX = (line0.getMidpoint().getX() + line1.getMidpoint().getX()) / 2;\n const midY = (line0.getMidpoint().getY() + line1.getMidpoint().getY()) / 2;\n const textPos = {\n x: midX,\n y: midY - style.applyZoomScale(15).y\n };\n klabel.position(textPos);\n\n // arc\n const radius = Math.min(line0.getLength(), line1.getLength()) * 33 / 100;\n karc.innerRadius(radius);\n karc.outerRadius(radius);\n karc.angle(angle);\n karc.rotation(-inclination);\n const arcPos = {x: mid.x(), y: mid.y()};\n karc.position(arcPos);\n }\n\n} // class ProtractorFactory\n","import {Rectangle} from '../math/rectangle';\nimport {Point2D} from '../math/point';\nimport {getFlags, replaceFlags} from '../utils/string';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Rectangle factory.\n */\nexport class RectangleFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'rectangle-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a rectangle shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the rectangle.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const rectangle = new Rectangle(points[0], points[1]);\n // draw shape\n const kshape = new Konva.Rect({\n x: rectangle.getBegin().getX(),\n y: rectangle.getBegin().getY(),\n width: rectangle.getWidth(),\n height: rectangle.getHeight(),\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n // label text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.rectangle[modality] !== 'undefined') {\n textExpr = defaults.labelText.rectangle[modality];\n } else {\n textExpr = defaults.labelText.rectangle['*'];\n }\n const quant = rectangle.quantify(\n viewController,\n getFlags(textExpr));\n ktext.setText(replaceFlags(textExpr, quant));\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: quant\n };\n // label\n const klabel = new Konva.Label({\n x: rectangle.getBegin().getX(),\n y: rectangle.getEnd().getY(),\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // debug shadow\n let kshadow;\n if (DRAW_DEBUG) {\n kshadow = this.#getShadowRectangle(rectangle);\n }\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n if (kshadow) {\n group.add(kshadow);\n }\n group.add(klabel);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update a rectangle shape.\n *\n * @param {Konva.Shape} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const rectX = shape.x();\n const rectY = shape.y();\n const rectWidth = shape.width();\n const rectHeight = shape.height();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n rectX, rectY, 'topLeft', style\n ));\n anchors.push(getDefaultAnchor(\n rectX + rectWidth, rectY, 'topRight', style\n ));\n anchors.push(getDefaultAnchor(\n rectX + rectWidth, rectY + rectHeight, 'bottomRight', style\n ));\n anchors.push(getDefaultAnchor(\n rectX, rectY + rectHeight, 'bottomLeft', style\n ));\n return anchors;\n }\n\n /**\n * Update a rectangle shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} viewController The associated view controller.\n */\n update(anchor, style, viewController) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const krect = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n // find special points\n const topLeft = group.getChildren(function (node) {\n return node.id() === 'topLeft';\n })[0];\n const topRight = group.getChildren(function (node) {\n return node.id() === 'topRight';\n })[0];\n const bottomRight = group.getChildren(function (node) {\n return node.id() === 'bottomRight';\n })[0];\n const bottomLeft = group.getChildren(function (node) {\n return node.id() === 'bottomLeft';\n })[0];\n // debug shadow\n let kshadow;\n if (DRAW_DEBUG) {\n kshadow = group.getChildren(function (node) {\n return node.name() === 'shadow';\n })[0];\n }\n\n // update 'self' (undo case) and special points\n switch (anchor.id()) {\n case 'topLeft':\n topLeft.x(anchor.x());\n topLeft.y(anchor.y());\n topRight.y(anchor.y());\n bottomLeft.x(anchor.x());\n break;\n case 'topRight':\n topRight.x(anchor.x());\n topRight.y(anchor.y());\n topLeft.y(anchor.y());\n bottomRight.x(anchor.x());\n break;\n case 'bottomRight':\n bottomRight.x(anchor.x());\n bottomRight.y(anchor.y());\n bottomLeft.y(anchor.y());\n topRight.x(anchor.x());\n break;\n case 'bottomLeft':\n bottomLeft.x(anchor.x());\n bottomLeft.y(anchor.y());\n bottomRight.y(anchor.y());\n topLeft.x(anchor.x());\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n // update shape\n krect.position(topLeft.position());\n const width = topRight.x() - topLeft.x();\n const height = bottomLeft.y() - topLeft.y();\n if (width && height) {\n krect.size({width: width, height: height});\n }\n // positions: add possible group offset\n const p2d0 = new Point2D(\n group.x() + topLeft.x(),\n group.y() + topLeft.y()\n );\n const p2d1 = new Point2D(\n group.x() + bottomRight.x(),\n group.y() + bottomRight.y()\n );\n // new rect\n const rect = new Rectangle(p2d0, p2d1);\n\n // debug shadow based on round (used in quantification)\n if (kshadow) {\n const round = rect.getRound();\n const rWidth = round.max.getX() - round.min.getX();\n const rHeight = round.max.getY() - round.min.getY();\n kshadow.position({\n x: round.min.getX() - group.x(),\n y: round.min.getY() - group.y()\n });\n kshadow.size({width: rWidth, height: rHeight});\n }\n\n // update label position\n const textPos = {\n x: rect.getBegin().getX() - group.x(),\n y: rect.getEnd().getY() - group.y()\n };\n klabel.position(textPos);\n\n // update quantification\n this.#updateRectangleQuantification(group, viewController);\n }\n\n /**\n * Update the quantification of a Rectangle.\n *\n * @param {Konva.Group} group The group with the shape.\n * @param {ViewController} viewController The associated view controller.\n */\n updateQuantification(group, viewController) {\n this.#updateRectangleQuantification(group, viewController);\n }\n\n /**\n * Update the quantification of a Rectangle (as a static\n * function to be used in update).\n *\n * @param {Konva.Group} group The group with the shape.\n * @param {ViewController} viewController The associated view controller.\n */\n #updateRectangleQuantification(group, viewController) {\n // associated shape\n const krect = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n\n // positions: add possible group offset\n const p2d0 = new Point2D(\n group.x() + krect.x(),\n group.y() + krect.y()\n );\n const p2d1 = new Point2D(\n p2d0.getX() + krect.width(),\n p2d0.getY() + krect.height()\n );\n // rectangle\n const rect = new Rectangle(p2d0, p2d1);\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n const quantification = rect.quantify(\n viewController,\n getFlags(meta.textExpr));\n ktext.setText(replaceFlags(meta.textExpr, quantification));\n // update meta\n meta.quantification = quantification;\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Rectangle} rectangle The rectangle to shadow.\n * @returns {Konva.Rect} The shadow konva shape.\n */\n #getShadowRectangle(rectangle) {\n const round = rectangle.getRound();\n const rWidth = round.max.getX() - round.min.getX();\n const rHeight = round.max.getY() - round.min.getY();\n return new Konva.Rect({\n x: round.min.getX(),\n y: round.min.getY(),\n width: rWidth,\n height: rHeight,\n fill: 'grey',\n strokeWidth: 0,\n strokeScaleEnabled: false,\n opacity: 0.3,\n name: 'shadow'\n });\n }\n\n} // class RectangleFactory\n","import {Line, getPerpendicularLine} from '../math/line';\nimport {Point2D} from '../math/point';\nimport {replaceFlags} from '../utils/string';\nimport {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Ruler factory.\n */\nexport class RulerFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'ruler-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a ruler shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const line = new Line(points[0], points[1]);\n // draw shape\n const kshape = new Konva.Line({\n points: [line.getBegin().getX(),\n line.getBegin().getY(),\n line.getEnd().getX(),\n line.getEnd().getY()],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n\n const tickLen = style.applyZoomScale(10).x;\n\n // tick begin\n const linePerp0 = getPerpendicularLine(line, points[0], tickLen);\n const ktick0 = new Konva.Line({\n points: [linePerp0.getBegin().getX(),\n linePerp0.getBegin().getY(),\n linePerp0.getEnd().getX(),\n linePerp0.getEnd().getY()],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape-tick0'\n });\n\n // tick end\n const linePerp1 = getPerpendicularLine(line, points[1], tickLen);\n const ktick1 = new Konva.Line({\n points: [linePerp1.getBegin().getX(),\n linePerp1.getBegin().getY(),\n linePerp1.getEnd().getX(),\n linePerp1.getEnd().getY()],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape-tick1'\n });\n\n // larger hitfunc\n kshape.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kshape);\n });\n\n // quantification\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.ruler[modality] !== 'undefined') {\n textExpr = defaults.labelText.ruler[modality];\n } else {\n textExpr = defaults.labelText.ruler['*'];\n }\n const quant = line.quantify(viewController);\n ktext.setText(replaceFlags(textExpr, quant));\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: quant\n };\n\n // label\n const dX = line.getBegin().getX() > line.getEnd().getX() ? 0 : -1;\n const dY = line.getBegin().getY() > line.getEnd().getY() ? -1 : 0;\n const klabel = new Konva.Label({\n x: line.getEnd().getX() + dX * style.applyZoomScale(ktext.width()).x,\n y: line.getEnd().getY() + dY * style.applyZoomScale(15).y,\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(ktick0);\n group.add(ktick1);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update a ruler shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n points[0] + shape.x(), points[1] + shape.y(), 'begin', style\n ));\n anchors.push(getDefaultAnchor(\n points[2] + shape.x(), points[3] + shape.y(), 'end', style\n ));\n return anchors;\n }\n\n /**\n * Update a ruler shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} viewController The associated view controller.\n */\n update(anchor, style, viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated tick0\n const ktick0 = group.getChildren(function (node) {\n return node.name() === 'shape-tick0';\n })[0];\n if (!(ktick0 instanceof Konva.Line)) {\n return;\n }\n // associated tick1\n const ktick1 = group.getChildren(function (node) {\n return node.name() === 'shape-tick1';\n })[0];\n if (!(ktick1 instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // find special points\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n\n // update special points\n switch (anchor.id()) {\n case 'begin':\n begin.x(anchor.x());\n begin.y(anchor.y());\n break;\n case 'end':\n end.x(anchor.x());\n end.y(anchor.y());\n break;\n }\n // update shape and compensate for possible drag\n // note: shape.position() and shape.size() won't work...\n const bx = begin.x() - kline.x();\n const by = begin.y() - kline.y();\n const ex = end.x() - kline.x();\n const ey = end.y() - kline.y();\n kline.points([bx, by, ex, ey]);\n // new line\n const p2d0 = new Point2D(begin.x(), begin.y());\n const p2d1 = new Point2D(end.x(), end.y());\n const line = new Line(p2d0, p2d1);\n // tick\n const tickLen = style.applyZoomScale(10).x;\n const p2b = new Point2D(bx, by);\n const p2e = new Point2D(ex, ey);\n const linePerp0 = getPerpendicularLine(line, p2b, tickLen);\n ktick0.points([linePerp0.getBegin().getX(),\n linePerp0.getBegin().getY(),\n linePerp0.getEnd().getX(),\n linePerp0.getEnd().getY()]);\n const linePerp1 = getPerpendicularLine(line, p2e, tickLen);\n ktick1.points([linePerp1.getBegin().getX(),\n linePerp1.getBegin().getY(),\n linePerp1.getEnd().getX(),\n linePerp1.getEnd().getY()]);\n // larger hitfunc\n kline.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kline);\n });\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n const quantification = line.quantify(viewController);\n ktext.setText(replaceFlags(meta.textExpr, quantification));\n // update meta\n meta.quantification = quantification;\n // update position\n const dX = line.getBegin().getX() > line.getEnd().getX() ? 0 : -1;\n const dY = line.getBegin().getY() > line.getEnd().getY() ? -1 : 0;\n const textPos = {\n x: line.getEnd().getX() + dX * style.applyZoomScale(ktext.width()).x,\n y: line.getEnd().getY() + dY * style.applyZoomScale(15).y\n };\n klabel.position(textPos);\n }\n\n} // class RulerFactory\n","import {viewEventNames} from '../image/view';\nimport {ViewFactory} from '../image/viewFactory';\nimport {\n getMatrixFromName,\n getOrientationStringLPS,\n Orientation\n} from '../math/orientation';\nimport {Point3D} from '../math/point';\nimport {Stage} from '../gui/stage';\nimport {Style} from '../gui/style';\nimport {\n getViewOrientation,\n getLayerDetailsFromLayerDivId\n} from '../gui/layerGroup';\nimport {ListenerHandler} from '../utils/listen';\nimport {State} from '../io/state';\nimport {logger} from '../utils/logger';\nimport {getUriQuery, decodeQuery} from '../utils/uri';\nimport {UndoStack} from '../tools/undo';\nimport {ToolboxController} from './toolboxController';\nimport {LoadController} from './loadController';\nimport {DataController} from './dataController';\nimport {OverlayData} from '../gui/overlayData';\nimport {toolList, defaultToolList, toolOptions} from '../tools';\nimport {binderList} from '../gui/stage';\nimport {WindowLevel} from '../image/windowLevel';\nimport {PlaneHelper} from '../image/planeHelper';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {LayerGroup} from '../gui/layerGroup';\nimport {ViewLayer} from '../gui/viewLayer';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Image} from '../image/image';\nimport {Matrix33} from '../math/matrix';\nimport {DataElement} from '../dicom/dataElement';\nimport {Scalar3D} from '../math/scalar';\nimport {DicomData} from './dataController';\n/* eslint-enable no-unused-vars */\n\n/**\n * View configuration: mainly defines the ´divId´\n * of the associated HTML div.\n */\nexport class ViewConfig {\n /**\n * Associated HTML div id.\n *\n * @type {string}\n */\n divId;\n /**\n * Optional orientation of the data; 'axial', 'coronal' or 'sagittal'.\n * If undefined, will use the data aquisition plane.\n *\n * @type {string|undefined}\n */\n orientation;\n /**\n * Optional view colour map name.\n *\n * @type {string|undefined}\n */\n colourMap;\n /**\n * Optional layer opacity; in [0, 1] range.\n *\n * @type {number|undefined}\n */\n opacity;\n /**\n * Optional layer window level preset name.\n * If present, the preset name will be used and\n * the window centre and width ignored.\n *\n * @type {string|undefined}\n */\n wlPresetName;\n /**\n * Optional layer window center.\n *\n * @type {number|undefined}\n */\n windowCenter;\n /**\n * Optional layer window width.\n *\n * @type {number|undefined}\n */\n windowWidth;\n\n /**\n * @param {string} divId The associated HTML div id.\n */\n constructor(divId) {\n this.divId = divId;\n }\n}\n\n/**\n * Tool configuration.\n */\nexport class ToolConfig {\n /**\n * Optional tool options.\n * For Draw: list of shape names.\n * For Filter: list of filter names.\n *\n * @type {string[]|undefined}\n */\n options;\n\n /**\n * @param {string[]} [options] Optional tool options.\n */\n constructor(options) {\n this.options = options;\n }\n}\n\n/**\n * Application options.\n */\nexport class AppOptions {\n /**\n * DataId indexed object containing the data view configurations.\n *\n * @type {Object|undefined}\n */\n dataViewConfigs;\n /**\n * Tool name indexed object containing individual tool configurations.\n *\n * @type {Object|undefined}\n */\n tools;\n /**\n * Optional array of layerGroup binder names.\n *\n * @type {string[]|undefined}\n */\n binders;\n /**\n * Optional boolean flag to trigger the first data render\n * after the first loaded data or not. Defaults to true.\n *\n * @type {boolean|undefined}\n */\n viewOnFirstLoadItem;\n /**\n * Optional default chraracterset string used for DICOM parsing if\n * not passed in DICOM file.\n *\n * Valid values: {@link https://developer.mozilla.org/en-US/docs/Web/API/Encoding_API/Encodings}.\n *\n * @type {string|undefined}\n */\n defaultCharacterSet;\n /**\n * Optional overlay config.\n *\n * @type {object|undefined}\n */\n overlayConfig;\n /**\n * DOM root document.\n *\n * @type {DocumentFragment}\n */\n rootDocument;\n\n /**\n * @param {Object} [dataViewConfigs] Optional dataId\n * indexed object containing the data view configurations.\n */\n constructor(dataViewConfigs) {\n this.dataViewConfigs = dataViewConfigs;\n }\n}\n\n/**\n * List of ViewConfigs indexed by dataIds.\n *\n * @typedef {Object} DataViewConfigs\n */\n\n/**\n * Main application class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * app.init(options);\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class App {\n\n /**\n * App options.\n *\n * @type {AppOptions}\n */\n #options = null;\n\n /**\n * Data controller.\n *\n * @type {DataController}\n */\n #dataController = null;\n\n /**\n * Toolbox controller.\n *\n * @type {ToolboxController}\n */\n #toolboxController = null;\n\n /**\n * Load controller.\n *\n * @type {LoadController}\n */\n #loadController = null;\n\n /**\n * Stage.\n *\n * @type {Stage}\n */\n #stage = null;\n\n /**\n * Undo stack.\n *\n * @type {UndoStack}\n */\n #undoStack = null;\n\n /**\n * Style.\n *\n * @type {Style}\n */\n #style = new Style();\n\n // overlay datas\n #overlayDatas = {};\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get a DicomData.\n *\n * @param {string} dataId The data id.\n * @returns {DicomData|undefined} The data.\n */\n getData(dataId) {\n return this.#dataController.get(dataId);\n }\n\n /**\n * Set the image at the given id.\n *\n * @param {string} dataId The data id.\n * @param {Image} img The associated image.\n */\n setImage(dataId, img) {\n this.#dataController.setImage(dataId, img);\n }\n\n /**\n * Add a new DicomData.\n *\n * @param {DicomData} data The new data.\n * @returns {string} The data id.\n */\n addData(data) {\n // get a new dataId\n const dataId = this.#dataController.getNextDataId();\n // add image to data controller\n this.#dataController.add(\n dataId,\n data\n );\n // optional render\n // if (this.#options.viewOnFirstLoadItem) {\n // this.render(dataId);\n // }\n // return\n return dataId;\n }\n\n /**\n * Get the meta data.\n *\n * @param {string} dataId The data id.\n * @returns {Object|undefined} The list of meta data.\n */\n getMetaData(dataId) {\n let res;\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n res = this.#dataController.get(dataId).meta;\n }\n return res;\n }\n\n /**\n * Get the list of ids in the data storage.\n *\n * @returns {string[]} The list of data ids.\n */\n getDataIds() {\n return this.#dataController.getDataIds();\n }\n\n /**\n * Get the list of dataIds that contain the input UIDs.\n *\n * @param {string[]} uids A list of UIDs.\n * @returns {string[]} The list of dataIds that contain the UIDs.\n */\n getDataIdsFromSopUids(uids) {\n return this.#dataController.getDataIdsFromSopUids(uids);\n }\n\n /**\n * Can the data (of the active view of the active layer) be scrolled?\n *\n * @returns {boolean} True if the data has a third dimension greater than one.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n canScroll() {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n const controller = viewLayer.getViewController();\n return controller.canScroll();\n }\n\n /**\n * Can window and level be applied to the data\n * (of the active view of the active layer)?\n *\n * @returns {boolean} True if the data is monochrome.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n canWindowLevel() {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n const controller = viewLayer.getViewController();\n return controller.canWindowLevel();\n }\n\n /**\n * Get the active layer group scale on top of the base scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getAddedScale() {\n return this.#stage.getActiveLayerGroup().getAddedScale();\n }\n\n /**\n * Get the base scale of the active layer group.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getBaseScale() {\n return this.#stage.getActiveLayerGroup().getBaseScale();\n }\n\n /**\n * Get the layer offset of the active layer group.\n *\n * @returns {Scalar3D} The offset as {x,y,z}.\n */\n getOffset() {\n return this.#stage.getActiveLayerGroup().getOffset();\n }\n\n /**\n * Get the toolbox controller.\n *\n * @returns {ToolboxController} The controller.\n */\n getToolboxController() {\n return this.#toolboxController;\n }\n\n /**\n * Get the active layer group.\n * The layer is available after the first loaded item.\n *\n * @returns {LayerGroup|undefined} The layer group.\n */\n getActiveLayerGroup() {\n return this.#stage.getActiveLayerGroup();\n }\n\n /**\n * Set the active layer group.\n *\n * @param {number} index The layer group index.\n */\n setActiveLayerGroup(index) {\n this.#stage.setActiveLayerGroup(index);\n }\n\n /**\n * Get the view layers associated to a data id.\n * The layer are available after the first loaded item.\n *\n * @param {string} dataId The data id.\n * @returns {ViewLayer[]} The layers.\n */\n getViewLayersByDataId(dataId) {\n return this.#stage.getViewLayersByDataId(dataId);\n }\n\n /**\n * Get the draw layers associated to a data id.\n * The layer are available after the first loaded item.\n *\n * @param {string} dataId The data id.\n * @returns {DrawLayer[]} The layers.\n */\n getDrawLayersByDataId(dataId) {\n return this.#stage.getDrawLayersByDataId(dataId);\n }\n\n /**\n * Get a layer group by div id.\n * The layer is available after the first loaded item.\n *\n * @param {string} divId The div id.\n * @returns {LayerGroup} The layer group.\n */\n getLayerGroupByDivId(divId) {\n return this.#stage.getLayerGroupByDivId(divId);\n }\n\n /**\n * Get the number of layer groups.\n *\n * @returns {number} The number of groups.\n */\n getNumberOfLayerGroups() {\n return this.#stage.getNumberOfLayerGroups();\n }\n\n /**\n * Get the app style.\n *\n * @returns {object} The app style.\n */\n getStyle() {\n return this.#style;\n }\n\n /**\n * Add a command to the undo stack.\n *\n * @param {object} cmd The command to add.\n * @fires UndoStack#undoadd\n * @function\n */\n addToUndoStack = (cmd) => {\n if (this.#undoStack !== null) {\n this.#undoStack.add(cmd);\n }\n };\n\n /**\n * Initialise the application.\n *\n * @param {AppOptions} opt The application options.\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.viewOnFirstLoadItem = false;\n * app.init(options);\n * // render button\n * const button = document.createElement('button');\n * button.id = 'render';\n * button.disabled = true;\n * button.appendChild(document.createTextNode('render'));\n * document.body.appendChild(button);\n * app.addEventListener('load', function () {\n * const button = document.getElementById('render');\n * button.disabled = false;\n * button.onclick = function () {\n * // render data #0\n * app.render(0);\n * };\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\n init(opt) {\n // store\n this.#options = opt;\n // defaults\n if (typeof this.#options.viewOnFirstLoadItem === 'undefined') {\n this.#options.viewOnFirstLoadItem = true;\n }\n if (typeof this.#options.dataViewConfigs === 'undefined') {\n this.#options.dataViewConfigs = {};\n }\n if (typeof this.#options.rootDocument === 'undefined') {\n this.#options.rootDocument = document;\n }\n\n // undo stack\n this.#undoStack = new UndoStack();\n this.#undoStack.addEventListener('undoadd', this.#fireEvent);\n this.#undoStack.addEventListener('undo', this.#fireEvent);\n this.#undoStack.addEventListener('redo', this.#fireEvent);\n\n // tools\n if (typeof this.#options.tools !== 'undefined') {\n // setup the tool list\n const appToolList = {};\n const keys = Object.keys(this.#options.tools);\n for (let t = 0; t < keys.length; ++t) {\n const toolName = keys[t];\n // find the tool in the default tool list\n let toolConstructor = defaultToolList[toolName];\n // or use external one\n if (typeof toolConstructor === 'undefined') {\n toolConstructor = toolList[toolName];\n }\n if (typeof toolConstructor !== 'undefined') {\n // create tool instance\n appToolList[toolName] = new toolConstructor(this);\n // register listeners\n if (typeof appToolList[toolName].addEventListener !== 'undefined') {\n const names = appToolList[toolName].getEventNames();\n for (let j = 0; j < names.length; ++j) {\n appToolList[toolName].addEventListener(names[j], this.#fireEvent);\n }\n }\n // tool options\n const toolParams = this.#options.tools[toolName];\n if (typeof toolParams.options !== 'undefined' &&\n toolParams.options.length !== 0) {\n let type = 'raw';\n if (typeof appToolList[toolName].getOptionsType !== 'undefined') {\n type = appToolList[toolName].getOptionsType();\n }\n let appToolOptions;\n if (type === 'instance' || type === 'factory') {\n appToolOptions = {};\n for (let i = 0; i < toolParams.options.length; ++i) {\n const optionName = toolParams.options[i];\n let optionClassName = optionName;\n if (type === 'factory') {\n optionClassName += 'Factory';\n }\n const toolNamespace = toolName.charAt(0).toLowerCase() +\n toolName.slice(1);\n if (typeof toolOptions[toolNamespace][optionClassName] !==\n 'undefined') {\n appToolOptions[optionName] =\n toolOptions[toolNamespace][optionClassName];\n } else {\n logger.warn('Could not find option class for: ' +\n optionName);\n }\n }\n } else {\n appToolOptions = toolParams.options;\n }\n appToolList[toolName].setOptions(appToolOptions);\n }\n } else {\n logger.warn('Could not initialise unknown tool: ' + toolName);\n }\n }\n // add tools to the controller\n this.#toolboxController = new ToolboxController(appToolList);\n }\n\n // create load controller\n this.#loadController =\n new LoadController(this.#options.defaultCharacterSet);\n this.#loadController.onloadstart = this.#onloadstart;\n this.#loadController.onprogress = this.#onloadprogress;\n this.#loadController.onloaditem = this.#onloaditem;\n this.#loadController.onload = this.#onload;\n this.#loadController.onloadend = this.#onloadend;\n this.#loadController.onerror = this.#onloaderror;\n this.#loadController.onabort = this.#onloadabort;\n\n // create data controller\n this.#dataController = new DataController();\n // propagate data events\n this.#dataController.addEventListener('dataadd', this.#fireEvent);\n this.#dataController.addEventListener('dataremove', this.#fireEvent);\n this.#dataController.addEventListener('dataimageset', this.#fireEvent);\n this.#dataController.addEventListener('dataupdate', this.#fireEvent);\n // create stage\n this.#stage = new Stage();\n if (typeof this.#options.binders !== 'undefined') {\n this.#stage.setBinders(this.#options.binders);\n }\n }\n\n /**\n * Reset the application.\n */\n reset() {\n // clear objects\n this.#stage.empty();\n this.#overlayDatas = {};\n // reset undo/redo\n if (this.#undoStack) {\n this.#undoStack = new UndoStack();\n this.#undoStack.addEventListener('undoadd', this.#fireEvent);\n this.#undoStack.addEventListener('undo', this.#fireEvent);\n this.#undoStack.addEventListener('redo', this.#fireEvent);\n }\n }\n\n /**\n * Reset the layout of the application.\n */\n resetLayout() {\n this.#stage.reset();\n this.#stage.draw();\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n // load API [begin] -------------------------------------------------------\n\n /**\n * Load a list of files. Can be image files or a state file.\n *\n * @param {File[]} files The list of files to load.\n * @fires App#loadstart\n * @fires App#loadprogress\n * @fires App#loaditem\n * @fires App#loadend\n * @fires App#error\n * @fires App#abort\n * @function\n */\n loadFiles = (files) => {\n // Get new data id\n const dataId = this.#dataController.getNextDataId();\n if (files.length === 0) {\n logger.warn('Ignoring empty input file list.');\n return;\n }\n this.#loadController.loadFiles(files, dataId);\n };\n\n /**\n * Load a list of URLs. Can be image files or a state file.\n *\n * @param {string[]} urls The list of urls to load.\n * @param {object} [options] The options object, can contain:\n * - requestHeaders: an array of {name, value} to use as request headers,\n * - withCredentials: boolean xhr.withCredentials flag to pass to the request,\n * - batchSize: the size of the request url batch.\n * @fires App#loadstart\n * @fires App#loadprogress\n * @fires App#loaditem\n * @fires App#loadend\n * @fires App#error\n * @fires App#abort\n * @function\n */\n loadURLs = (urls, options) => {\n // Get new data id\n const dataId = this.#dataController.getNextDataId();\n if (urls.length === 0) {\n logger.warn('Ignoring empty input url list.');\n return;\n }\n this.#loadController.loadURLs(urls, dataId, options);\n };\n\n /**\n * Load from an input uri.\n *\n * @param {string} uri The input uri, for example: 'window.location.href'.\n * @param {object} [options] Optional url request options.\n * @function\n */\n loadFromUri = (uri, options) => {\n const query = getUriQuery(uri);\n\n // load end callback: loads the state.\n const onLoadEnd = (/*event*/) => {\n this.removeEventListener('loadend', onLoadEnd);\n this.loadURLs([query.state]);\n };\n\n // check query\n if (query && typeof query.input !== 'undefined') {\n // optional display state\n if (typeof query.state !== 'undefined') {\n // queue after main data load\n this.addEventListener('loadend', onLoadEnd);\n }\n // load base image\n decodeQuery(query, this.loadURLs, options);\n }\n // no else to allow for empty uris\n };\n\n /**\n * Load a list of ArrayBuffers.\n *\n * @param {Array} data The list of ArrayBuffers to load\n * in the form of [{name: \"\", filename: \"\", data: data}].\n * @fires App#loadstart\n * @fires App#loadprogress\n * @fires App#loaditem\n * @fires App#loadend\n * @fires App#error\n * @fires App#abort\n * @function\n */\n loadImageObject = (data) => {\n // Get new data id\n const dataId = this.#dataController.getNextDataId();\n this.#loadController.loadImageObject(data, dataId);\n };\n\n /**\n * Abort all the current loads.\n */\n abortAllLoads() {\n const ids = this.#loadController.getLoadingDataIds();\n for (const id of ids) {\n this.abortLoad(id);\n }\n }\n\n /**\n * Abort an individual data load.\n *\n * @param {string} dataId The data to stop loading.\n */\n abortLoad(dataId) {\n // abort load\n this.#loadController.abort(dataId);\n // remove data\n this.#dataController.remove(dataId);\n // clean up stage\n this.#stage.removeLayersByDataId(dataId);\n }\n\n // load API [end] ---------------------------------------------------------\n\n /**\n * Fit the display to the data of each layer group.\n * To be called once the image is loaded.\n */\n fitToContainer() {\n this.#stage.fitToContainer();\n }\n\n /**\n * Init the Window/Level display\n * (of the active layer of the active layer group).\n *\n * @deprecated Please set the opacity of the desired view layer directly.\n */\n initWLDisplay() {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n const controller = viewLayer.getViewController();\n controller.initialise();\n }\n\n /**\n * Set the imageSmoothing flag value. Default is false.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#stage.setImageSmoothing(flag);\n this.#stage.draw();\n }\n\n /**\n * Get the layer group configuration from a data id.\n *\n * @param {string} dataId The data id.\n * @param {boolean} [excludeStarConfig] Exclude the star config\n * (default to false).\n * @returns {ViewConfig[]} The list of associated configs.\n */\n getViewConfigs(dataId, excludeStarConfig) {\n // check options\n if (this.#options.dataViewConfigs === null ||\n typeof this.#options.dataViewConfigs === 'undefined') {\n throw new Error('No available data view configuration');\n }\n let configs = [];\n if (typeof this.#options.dataViewConfigs[dataId] !== 'undefined') {\n configs = this.#options.dataViewConfigs[dataId];\n } else if (!excludeStarConfig &&\n typeof this.#options.dataViewConfigs['*'] !== 'undefined') {\n configs = this.#options.dataViewConfigs['*'];\n }\n return configs;\n }\n\n /**\n * Get the layer group configuration for a data id and group\n * div id.\n *\n * @param {string} dataId The data id.\n * @param {string} groupDivId The layer group div id.\n * @param {boolean} [excludeStarConfig] Exclude the star config\n * (default to false).\n * @returns {ViewConfig|undefined} The associated config.\n */\n getViewConfig(dataId, groupDivId, excludeStarConfig) {\n const configs = this.getViewConfigs(dataId, excludeStarConfig);\n return configs.find(function (item) {\n return item.divId === groupDivId;\n });\n }\n\n /**\n * Get the data view config.\n * Carefull, returns a reference, do not modify without resetting.\n *\n * @returns {Object} The configuration list.\n */\n getDataViewConfigs() {\n return this.#options.dataViewConfigs;\n }\n\n /**\n * Set the data view configuration.\n * Resets the stage and recreates all the views.\n *\n * @param {Object} configs The configuration list.\n */\n setDataViewConfigs(configs) {\n // clean up\n this.#stage.empty();\n // set new\n this.#options.dataViewConfigs = configs;\n // create layer groups\n this.#createLayerGroups(configs);\n }\n\n /**\n * Add a data view config.\n *\n * @param {string} dataId The data id.\n * @param {ViewConfig} config The view configuration.\n */\n addDataViewConfig(dataId, config) {\n // add to list\n const configs = this.#options.dataViewConfigs;\n if (typeof configs[dataId] === 'undefined') {\n configs[dataId] = [];\n }\n const equalDivId = function (item) {\n return item.divId === config.divId;\n };\n const itemIndex = configs[dataId].findIndex(equalDivId);\n if (itemIndex === -1) {\n this.#options.dataViewConfigs[dataId].push(config);\n } else {\n throw new Error('Duplicate view config for data ' + dataId +\n ' and div ' + config.divId);\n }\n\n // add layer group if not done\n if (typeof this.#stage.getLayerGroupByDivId(config.divId) === 'undefined') {\n this.#createLayerGroup(config);\n }\n\n // render (will create layers)\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n this.render(dataId, [config]);\n }\n }\n\n /**\n * Remove a data view config.\n *\n * @param {string} dataId The data id.\n * @param {string} divId The div id.\n */\n removeDataViewConfig(dataId, divId) {\n // remove from list\n const configs = this.#options.dataViewConfigs;\n if (typeof configs[dataId] === 'undefined') {\n // no config for dataId\n return;\n }\n const equalDivId = function (item) {\n return item.divId === divId;\n };\n const itemIndex = configs[dataId].findIndex(equalDivId);\n if (itemIndex === -1) {\n // no config for divId\n return;\n }\n configs[dataId].splice(itemIndex, 1);\n if (configs[dataId].length === 0) {\n delete configs[dataId];\n }\n\n // data is loaded, remove view\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n const lg = this.#stage.getLayerGroupByDivId(divId);\n if (typeof lg !== 'undefined') {\n const vls = lg.getViewLayersByDataId(dataId);\n if (vls.length === 1) {\n lg.removeLayer(vls[0]);\n }\n const dls = lg.getDrawLayersByDataId(dataId);\n if (dls.length === 1) {\n lg.removeLayer(dls[0]);\n }\n if (vls.length === 0 && dls.length === 0) {\n throw new Error('Expected one layer, got none');\n }\n if (lg.getNumberOfLayers() === 0) {\n this.#stage.removeLayerGroup(lg);\n }\n }\n }\n }\n\n /**\n * Update an existing data view config.\n * Removes and re-creates the layer if found.\n *\n * @param {string} dataId The data id.\n * @param {string} divId The div id.\n * @param {ViewConfig} config The view configuration.\n */\n updateDataViewConfig(dataId, divId, config) {\n const configs = this.#options.dataViewConfigs;\n // check data id\n if (typeof configs[dataId] === 'undefined') {\n throw new Error('No config for dataId: ' + dataId);\n }\n // check div id\n const equalDivId = function (item) {\n return item.divId === divId;\n };\n const itemIndex = configs[dataId].findIndex(equalDivId);\n if (itemIndex === -1) {\n throw new Error('No config for dataId: ' +\n dataId + ' and divId: ' + divId);\n }\n // update config\n const configToUpdate = configs[dataId][itemIndex];\n for (const prop in config) {\n configToUpdate[prop] = config[prop];\n }\n\n // remove previous layers\n const lg = this.#stage.getLayerGroupByDivId(configToUpdate.divId);\n if (typeof lg !== 'undefined') {\n const vls = lg.getViewLayersByDataId(dataId);\n if (vls.length === 1) {\n lg.removeLayer(vls[0]);\n }\n const dls = lg.getDrawLayersByDataId(dataId);\n if (dls.length === 1) {\n lg.removeLayer(dls[0]);\n }\n if (vls.length === 0 && dls.length === 0) {\n throw new Error('Expected one layer, got none');\n }\n }\n\n // render (will create layer)\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n this.render(dataId, [configToUpdate]);\n }\n }\n\n /**\n * Create layer groups according to a data view config:\n * adds them to stage and binds them.\n *\n * @param {DataViewConfigs} dataViewConfigs The data view config.\n */\n #createLayerGroups(dataViewConfigs) {\n const dataKeys = Object.keys(dataViewConfigs);\n const divIds = [];\n for (let i = 0; i < dataKeys.length; ++i) {\n const viewConfigs = dataViewConfigs[dataKeys[i]];\n for (let j = 0; j < viewConfigs.length; ++j) {\n const viewConfig = viewConfigs[j];\n // view configs can contain the same divIds, avoid duplicating\n if (!divIds.includes(viewConfig.divId)) {\n this.#createLayerGroup(viewConfig);\n divIds.push(viewConfig.divId);\n }\n }\n }\n }\n\n /**\n * Create a layer group according to a view config:\n * adds it to stage and binds it.\n *\n * @param {ViewConfig} viewConfig The view config.\n */\n #createLayerGroup(viewConfig) {\n // create new layer group\n const element = this.#options.rootDocument.getElementById(viewConfig.divId);\n const layerGroup = this.#stage.addLayerGroup(element);\n // bind events\n this.#bindLayerGroupToApp(layerGroup);\n }\n\n /**\n * Set the layer groups binders.\n *\n * @param {string[]} list The list of binder names.\n */\n setLayerGroupsBinders(list) {\n // create instances\n const instances = [];\n for (let i = 0; i < list.length; ++i) {\n if (typeof binderList[list[i]] !== 'undefined') {\n instances.push(new binderList[list[i]]);\n }\n }\n // pass to stage\n this.#stage.setBinders(instances);\n }\n\n /**\n * Render the current data.\n *\n * @param {string} dataId The data id to render.\n * @param {ViewConfig[]} [viewConfigs] The list of configs to render.\n */\n render(dataId, viewConfigs) {\n if (typeof dataId === 'undefined' || dataId === null) {\n throw new Error('Cannot render without data id');\n }\n // guess data type\n const isImage =\n typeof this.getData(dataId).image !== 'undefined';\n const isMeasurement =\n typeof this.getData(dataId).annotationGroup !== 'undefined';\n\n // create layer groups if not done yet\n // (create all to allow for ratio sync)\n if (this.#stage.getNumberOfLayerGroups() === 0) {\n this.#createLayerGroups(this.#options.dataViewConfigs);\n }\n\n // use options list if non provided\n if (typeof viewConfigs === 'undefined') {\n viewConfigs = this.getViewConfigs(dataId);\n }\n\n // nothing to do if no view config\n if (viewConfigs.length === 0) {\n logger.info('Not rendering data: ' + dataId +\n ' (no data view config)');\n return;\n }\n\n // loop on configs\n for (let i = 0; i < viewConfigs.length; ++i) {\n const config = viewConfigs[i];\n const layerGroup =\n this.#stage.getLayerGroupByDivId(config.divId);\n // layer group must exist\n if (!layerGroup) {\n throw new Error('No layer group for ' + config.divId);\n }\n // create layer if needed\n // warn: needs a loaded DOM\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n if (isImage &&\n layerGroup.getViewLayersByDataId(dataId).length === 0\n ) {\n this.#addViewLayer(dataId, config);\n } else if (isMeasurement &&\n layerGroup.getDrawLayersByDataId(dataId).length === 0\n ) {\n this.addDrawLayer(dataId, config);\n }\n }\n // draw\n layerGroup.draw();\n }\n }\n\n /**\n * Zoom the layers of the active layer group.\n *\n * @param {number} step The step to add to the current zoom.\n * @param {number} cx The zoom center X coordinate.\n * @param {number} cy The zoom center Y coordinate.\n */\n zoom(step, cx, cy) {\n const layerGroup = this.#stage.getActiveLayerGroup();\n const viewController = layerGroup.getActiveViewLayer().getViewController();\n const k = viewController.getCurrentScrollPosition();\n const center = new Point3D(cx, cy, k);\n layerGroup.addScale(step, center);\n layerGroup.draw();\n }\n\n /**\n * Apply a translation to the layers of the active layer group.\n *\n * @param {number} tx The translation along X.\n * @param {number} ty The translation along Y.\n */\n translate(tx, ty) {\n const layerGroup = this.#stage.getActiveLayerGroup();\n layerGroup.addTranslation({x: tx, y: ty, z: 0});\n layerGroup.draw();\n }\n\n /**\n * Set the active view layer (of the active layer group) opacity.\n *\n * @param {number} alpha The opacity ([0:1] range).\n * @deprecated Please set the opacity of the desired view layer directly.\n */\n setOpacity(alpha) {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n viewLayer.setOpacity(alpha);\n viewLayer.draw();\n }\n\n /**\n * Set the drawings of the active layer group.\n *\n * @deprecated\n * @param {Array} _drawings An array of drawings.\n * @param {Array} _drawingsDetails An array of drawings details.\n */\n setDrawings(_drawings, _drawingsDetails) {\n // does nothing\n }\n\n /**\n * Get the JSON state of the app.\n *\n * @deprecated\n * @returns {string} The state of the app as a JSON string.\n */\n getJsonState() {\n const state = new State();\n return state.toJSON(this);\n }\n\n /**\n * Apply a JSON state to this app.\n *\n * @deprecated\n * @param {string} jsonState The state of the app as a JSON string.\n */\n applyJsonState(jsonState) {\n const state = new State();\n state.apply(this, state.fromJSON(jsonState));\n }\n\n // Handler Methods -----------------------------------------------------------\n\n /**\n * Handle resize: fit the display to the window.\n * To be called once the image is loaded.\n * Can be connected to a window 'resize' event.\n *\n * @function\n */\n onResize = () => {\n this.fitToContainer();\n };\n\n /**\n * Key down callback. Meant to be used in tools.\n *\n * @param {KeyboardEvent} event The key down event.\n * @fires App#keydown\n * @function\n */\n onKeydown = (event) => {\n /**\n * Key down event.\n *\n * @event App#keydown\n * @type {KeyboardEvent}\n * @property {string} type The event type: keydown.\n * @property {string} context The tool where the event originated.\n */\n this.#fireEvent(event);\n };\n\n /**\n * Key down event handler example.\n * - CRTL-Z: undo,\n * - CRTL-Y: redo,\n * - CRTL-ARROW_LEFT: next element on fourth dim,\n * - CRTL-ARROW_UP: next element on third dim,\n * - CRTL-ARROW_RIGHT: previous element on fourth dim,\n * - CRTL-ARROW_DOWN: previous element on third dim.\n *\n * Applies to the active view of the active layer group.\n *\n * @param {KeyboardEvent} event The key down event.\n * @fires UndoStack#undo\n * @fires UndoStack#redo\n * @function\n */\n defaultOnKeydown = (event) => {\n if (event.ctrlKey) {\n if (event.shiftKey) {\n const layerGroup = this.#stage.getActiveLayerGroup();\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n if (event.key === 'ArrowLeft') { // crtl-shift-arrow-left\n if (viewController.moreThanOne(3)) {\n viewController.decrementIndex(3);\n }\n } else if (event.key === 'ArrowUp') { // crtl-shift-arrow-up\n if (layerGroup.canScroll()) {\n viewController.incrementScrollIndex();\n }\n } else if (event.key === 'ArrowRight') { // crtl-shift-arrow-right\n if (layerGroup.moreThanOne(3)) {\n viewController.incrementIndex(3);\n }\n } else if (event.key === 'ArrowDown') { // crtl-shift-arrow-down\n if (layerGroup.canScroll()) {\n viewController.decrementScrollIndex();\n }\n }\n } else if (event.key === 'y') { // crtl-y\n this.#undoStack.redo();\n } else if (event.key === 'z') { // crtl-z\n this.#undoStack.undo();\n } else if (event.key === ' ') { // crtl-space\n for (let i = 0; i < this.#stage.getNumberOfLayerGroups(); ++i) {\n this.#stage.getLayerGroup(i).setShowCrosshair(\n !this.#stage.getLayerGroup(i).getShowCrosshair()\n );\n }\n }\n }\n };\n\n // Internal members shortcuts-----------------------------------------------\n\n /**\n * Reset the display.\n */\n resetDisplay() {\n this.resetLayout();\n this.initWLDisplay();\n }\n\n /**\n * Reset the app zoom.\n */\n resetZoom() {\n this.resetLayout();\n }\n\n /**\n * Set the colour map of the active view of the active layer group.\n *\n * @param {string} name The colour map name.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n setColourMap(name) {\n const viewController =\n this.#stage.getActiveLayerGroup()\n .getActiveViewLayer().getViewController();\n viewController.setColourMap(name);\n }\n\n /**\n * Set the window/level preset of the active view of the active layer group.\n *\n * @param {string} preset The window/level preset.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n setWindowLevelPreset(preset) {\n const viewController =\n this.#stage.getActiveLayerGroup()\n .getActiveViewLayer().getViewController();\n viewController.setWindowLevelPreset(preset);\n }\n\n /**\n * Set the tool.\n *\n * @param {string} tool The tool.\n */\n setTool(tool) {\n // bind tool to active layer\n for (let i = 0; i < this.#stage.getNumberOfLayerGroups(); ++i) {\n const layerGroup = this.#stage.getLayerGroup(i);\n // draw or view layer\n const isDrawTool = tool === 'Draw' ||\n tool === 'Livewire' ||\n tool === 'Floodfill';\n let layer;\n if (isDrawTool &&\n typeof layerGroup.getActiveDrawLayer() !== 'undefined') {\n layer = layerGroup.getActiveDrawLayer();\n } else {\n layer = layerGroup.getActiveViewLayer();\n }\n if (typeof layer !== 'undefined') {\n this.#toolboxController.bindLayerGroup(layerGroup, layer);\n }\n }\n\n // set toolbox tool\n this.#toolboxController.setSelectedTool(tool);\n }\n\n /**\n * Set the tool live features.\n *\n * @param {object} list The list of features.\n */\n setToolFeatures(list) {\n this.#toolboxController.setToolFeatures(list);\n }\n\n /**\n * Undo the last action.\n *\n * @fires UndoStack#undo\n */\n undo() {\n this.#undoStack.undo();\n }\n\n /**\n * Redo the last action.\n *\n * @fires UndoStack#redo\n */\n redo() {\n this.#undoStack.redo();\n }\n\n /**\n * Get the undo stack size.\n *\n * @returns {number} The size of the stack.\n */\n getStackSize() {\n return this.#undoStack.getStackSize();\n }\n\n /**\n * Get the current undo stack index.\n *\n * @returns {number} The stack index.\n */\n getCurrentStackIndex() {\n return this.#undoStack.getCurrentStackIndex();\n }\n\n /**\n * Get the overlay data for a data id.\n *\n * @param {string} dataId The data id.\n * @returns {OverlayData|undefined} The overlay data.\n */\n getOverlayData(dataId) {\n let data;\n if (typeof this.#overlayDatas !== 'undefined') {\n data = this.#overlayDatas[dataId];\n }\n return data;\n }\n\n /**\n * Toggle overlay listeners.\n *\n * @param {string} dataId The data id.\n */\n toggleOverlayListeners(dataId) {\n const data = this.getOverlayData(dataId);\n if (typeof data !== 'undefined') {\n if (data.isListening()) {\n data.removeAppListeners();\n } else {\n data.addAppListeners();\n }\n }\n }\n\n // Private Methods -----------------------------------------------------------\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Data load start callback.\n *\n * @param {object} event The load start event.\n */\n #onloadstart = (event) => {\n // create overlay data\n if (typeof this.#options.overlayConfig !== 'undefined') {\n this.#overlayDatas[event.dataid] = new OverlayData(\n this, event.dataid, this.#options.overlayConfig);\n }\n /**\n * Load start event.\n *\n * @event App#loadstart\n * @type {object}\n * @property {string} type The event type: loadstart.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n */\n event.type = 'loadstart';\n this.#fireEvent(event);\n };\n\n /**\n * Data load progress callback.\n *\n * @param {object} event The progress event.\n */\n #onloadprogress = (event) => {\n /**\n * Load progress event.\n *\n * @event App#loadprogress\n * @type {object}\n * @property {string} type The event type: loadprogress.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n * @property {number} loaded The loaded percentage.\n * @property {number} total The total percentage.\n */\n event.type = 'loadprogress';\n this.#fireEvent(event);\n };\n\n /**\n * Data load callback.\n *\n * @param {object} event The load event.\n */\n #onloaditem = (event) => {\n // check event\n if (typeof event.data === 'undefined') {\n logger.error('Missing loaditem event data.');\n }\n if (typeof event.loadtype === 'undefined') {\n logger.error('Missing loaditem event load type.');\n }\n\n const isFirstLoadItem = event.isfirstitem;\n\n let eventMetaData = null;\n if (event.loadtype === 'image') {\n if (isFirstLoadItem) {\n this.#dataController.add(event.dataid, event.data);\n } else {\n this.#dataController.update(event.dataid, event.data);\n }\n eventMetaData = event.data.meta;\n } else if (event.loadtype === 'state') {\n this.applyJsonState(event.data);\n eventMetaData = 'state';\n }\n\n /**\n * Load item event: fired when a load item is successfull.\n *\n * @event App#loaditem\n * @type {object}\n * @property {string} type The event type: loaditem.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n * @property {object} data The loaded meta data.\n */\n this.#fireEvent({\n type: 'loaditem',\n data: eventMetaData,\n source: event.source,\n loadtype: event.loadtype,\n dataid: event.dataid,\n isfirstitem: event.isfirstitem,\n warn: event.warn\n });\n\n // update overlay data if present\n if (typeof this.#overlayDatas !== 'undefined' &&\n typeof this.#overlayDatas[event.dataid] !== 'undefined') {\n this.#overlayDatas[event.dataid].addItemMeta(eventMetaData);\n }\n\n // render if first and flag allows\n if (event.loadtype === 'image' &&\n this.getViewConfigs(event.dataid).length !== 0 &&\n isFirstLoadItem && this.#options.viewOnFirstLoadItem) {\n this.render(event.dataid);\n }\n };\n\n /**\n * Data load callback.\n *\n * @param {object} event The load event.\n */\n #onload = (event) => {\n /**\n * Load event: fired when a load finishes successfully.\n *\n * @event App#load\n * @type {object}\n * @property {string} type The event type: load.\n * @property {string} loadType The load type: image or state.\n */\n event.type = 'load';\n this.#fireEvent(event);\n };\n\n /**\n * Data load end callback.\n *\n * @param {object} event The load end event.\n */\n #onloadend = (event) => {\n /**\n * Main load end event: fired when the load finishes,\n * successfully or not.\n *\n * @event App#loadend\n * @type {object}\n * @property {string} type The event type: loadend.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n */\n event.type = 'loadend';\n this.#fireEvent(event);\n };\n\n /**\n * Data load error callback.\n *\n * @param {object} event The error event.\n */\n #onloaderror = (event) => {\n /**\n * Load error event.\n *\n * @event App#error\n * @type {object}\n * @property {string} type The event type: error.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n * @property {object} error The error.\n * @property {object} target The event target.\n */\n if (typeof event.type === 'undefined') {\n event.type = 'error';\n }\n this.#fireEvent(event);\n };\n\n /**\n * Data load abort callback.\n *\n * @param {object} event The abort event.\n */\n #onloadabort = (event) => {\n /**\n * Load abort event.\n *\n * @event App#abort\n * @type {object}\n * @property {string} type The event type: abort.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n */\n if (typeof event.type === 'undefined') {\n event.type = 'abort';\n }\n this.#fireEvent(event);\n };\n\n /**\n * Bind layer group events to app.\n *\n * @param {object} group The layer group.\n */\n #bindLayerGroupToApp(group) {\n // propagate layer group events\n group.addEventListener('zoomchange', this.#fireEvent);\n group.addEventListener('offsetchange', this.#fireEvent);\n // propagate viewLayer events\n group.addEventListener('renderstart', this.#fireEvent);\n group.addEventListener('renderend', this.#fireEvent);\n // propagate view events\n for (let j = 0; j < viewEventNames.length; ++j) {\n group.addEventListener(viewEventNames[j], this.#fireEvent);\n }\n // propagate drawLayer events\n if (this.#toolboxController && this.#toolboxController.hasTool('Draw')) {\n group.addEventListener('drawcreate', this.#fireEvent);\n group.addEventListener('drawdelete', this.#fireEvent);\n }\n // updata data view config\n group.addEventListener('wlchange', (event) => {\n const layerDetails = getLayerDetailsFromLayerDivId(event.srclayerid);\n const groupId = layerDetails.groupDivId;\n const config = this.getViewConfig(event.dataid, groupId, true);\n if (typeof config !== 'undefined') {\n // reset previous values\n config.windowCenter = undefined;\n config.windowWidth = undefined;\n config.wlPresetName = undefined;\n // window width and center\n if (event.value.length === 2) {\n config.windowCenter = event.value[0];\n config.windowWidth = event.value[1];\n }\n // window level preset name\n if (event.value.length === 3) {\n config.wlPresetName = event.value[2];\n }\n }\n });\n group.addEventListener('opacitychange', (event) => {\n const layerDetails = getLayerDetailsFromLayerDivId(event.srclayerid);\n const groupId = layerDetails.groupDivId;\n const config = this.getViewConfig(event.dataid, groupId, true);\n if (typeof config !== 'undefined') {\n config.opacity = event.value[0];\n }\n });\n group.addEventListener('colourmapchange', (event) => {\n const layerDetails = getLayerDetailsFromLayerDivId(event.srclayerid);\n const groupId = layerDetails.groupDivId;\n const config = this.getViewConfig(event.dataid, groupId, true);\n if (typeof config !== 'undefined') {\n config.colourMap = event.value[0];\n }\n });\n }\n\n /**\n * Add a view layer.\n *\n * @param {string} dataId The data id.\n * @param {ViewConfig} viewConfig The data view config.\n */\n #addViewLayer(dataId, viewConfig) {\n const data = this.#dataController.get(dataId);\n if (!data) {\n throw new Error('Cannot initialise layer with missing data, id: ' +\n dataId);\n }\n const layerGroup = this.#stage.getLayerGroupByDivId(viewConfig.divId);\n if (!layerGroup) {\n throw new Error('Cannot initialise layer with missing group, id: ' +\n viewConfig.divId);\n }\n const imageGeometry = data.image.getGeometry();\n\n // un-bind\n this.#stage.unbindLayerGroups();\n\n // create and setup view\n const viewFactory = new ViewFactory();\n const view = viewFactory.create(data.meta, data.image);\n const viewOrientation = getViewOrientation(\n imageGeometry.getOrientation(),\n getMatrixFromName(viewConfig.orientation)\n );\n view.setOrientation(viewOrientation);\n\n // make pixel of value 0 transparent for segmentation\n // (assuming RGB data)\n if (data.image.getMeta().Modality === 'SEG') {\n view.setAlphaFunction(function (value /*, index*/) {\n if (value[0] === 0 &&\n value[1] === 0 &&\n value[2] === 0) {\n return 0;\n } else {\n return 0xff;\n }\n });\n }\n\n // do we have more than one layer\n // (the layer has not been added to the layer group yet)\n const isBaseLayer = layerGroup.getNumberOfViewLayers() === 0;\n\n // opacity\n let opacity = 1;\n if (typeof viewConfig.opacity !== 'undefined') {\n opacity = viewConfig.opacity;\n } else {\n if (!isBaseLayer) {\n opacity = 0.5;\n }\n }\n\n // view layer\n const viewLayer = layerGroup.addViewLayer();\n viewLayer.setView(view, dataId);\n const size2D = imageGeometry.getSize(viewOrientation).get2D();\n const spacing2D = imageGeometry.getSpacing(viewOrientation).get2D();\n viewLayer.initialise(size2D, spacing2D, opacity);\n\n // view controller\n const viewController = viewLayer.getViewController();\n // window/level\n if (typeof viewConfig.wlPresetName !== 'undefined') {\n viewController.setWindowLevelPreset(viewConfig.wlPresetName);\n } else if (typeof viewConfig.windowCenter !== 'undefined' &&\n typeof viewConfig.windowWidth !== 'undefined') {\n const wl = new WindowLevel(\n viewConfig.windowCenter, viewConfig.windowWidth);\n viewController.setWindowLevel(wl);\n }\n // colour map\n if (typeof viewConfig.colourMap !== 'undefined') {\n viewController.setColourMap(viewConfig.colourMap);\n } else {\n if (!isBaseLayer) {\n if (data.image.getMeta().Modality === 'PT') {\n viewController.setColourMap('hot');\n } else {\n viewController.setColourMap('rainbow');\n }\n }\n }\n\n // listen to image set\n this.#dataController.addEventListener(\n 'dataimageset', viewLayer.onimageset);\n\n // sync layers position\n const value = [\n viewController.getCurrentIndex().getValues(),\n viewController.getCurrentPosition().getValues()\n ];\n layerGroup.updateLayersToPositionChange({\n value: value,\n srclayerid: viewLayer.getId()\n });\n\n // sync layer groups\n this.#stage.fitToContainer();\n\n // view layer offset (done before scale)\n viewLayer.setOffset(layerGroup.getOffset());\n\n // get and apply flip flags\n const flipFlags = this.#getViewFlipFlags(\n imageGeometry.getOrientation(),\n viewConfig.orientation);\n this.#applyFlipFlags(flipFlags, viewLayer);\n\n // layer scale (done after possible flip)\n if (!isBaseLayer) {\n // use zoom offset of base layer\n const baseViewLayer = layerGroup.getBaseViewLayer();\n viewLayer.initScale(\n layerGroup.getScale(),\n baseViewLayer.getAbsoluteZoomOffset()\n );\n } else {\n viewLayer.setScale(layerGroup.getScale());\n }\n\n // bind\n this.#stage.bindLayerGroups();\n if (this.#toolboxController) {\n this.#toolboxController.bindLayerGroup(layerGroup, viewLayer);\n }\n\n /**\n * Add view layer event.\n *\n * @event Application#viewlayeradd\n * @type {object}\n * @property {string} type The event type.\n */\n this.#fireEvent({\n type: 'viewlayeradd',\n layerid: viewLayer.getId(),\n layergroupid: layerGroup.getDivId(),\n dataid: dataId\n });\n\n // initialise the toolbox for base\n if (isBaseLayer) {\n if (this.#toolboxController) {\n this.#toolboxController.init();\n }\n }\n }\n\n /**\n * Add a draw layer.\n *\n * @param {string} dataId The data id.\n * @param {ViewConfig} viewConfig The data view config.\n */\n addDrawLayer(dataId, viewConfig) {\n const layerGroup = this.#stage.getLayerGroupByDivId(viewConfig.divId);\n if (!layerGroup) {\n throw new Error('Cannot initialise layer with missing group, id: ' +\n viewConfig.divId);\n }\n\n // reference is the data of the view layer with the\n // same StudyInstanceUID\n const data = this.#dataController.get(dataId);\n if (!data) {\n throw new Error('Cannot initialise layer with missing data, id: ' +\n dataId);\n }\n const studyInstanceUID = data.annotationGroup.getMeta('StudyInstanceUID');\n const viewLayers = layerGroup.searchViewLayers({\n StudyInstanceUID: studyInstanceUID\n });\n if (viewLayers.length === 0) {\n console.warn(\n 'No loaded data that matches the measurement study UID');\n return;\n }\n const refViewLayer = viewLayers[0];\n const refDataId = refViewLayer.getDataId();\n\n // set annotation view controller (allows quantification)\n const refViewController = refViewLayer.getViewController();\n data.annotationGroup.setViewController(refViewController);\n\n // reference data to use as base for layer properties\n const refData = this.#dataController.get(refDataId);\n if (!refData) {\n throw new Error(\n 'Cannot initialise layer with missing reference data, id: ' +\n refDataId);\n }\n const imageGeometry = refData.image.getGeometry();\n\n const viewOrientation = getViewOrientation(\n imageGeometry.getOrientation(),\n getMatrixFromName(viewConfig.orientation)\n );\n const size2D = imageGeometry.getSize(viewOrientation).get2D();\n const spacing2D = imageGeometry.getSpacing(viewOrientation).get2D();\n\n const drawLayer = layerGroup.addDrawLayer();\n drawLayer.initialise(size2D, spacing2D);\n\n const planeHelper = new PlaneHelper(\n imageGeometry.getRealSpacing(),\n imageGeometry.getOrientation(),\n viewOrientation\n );\n drawLayer.setPlaneHelper(planeHelper);\n\n // sync layer groups\n this.#stage.fitToContainer();\n\n // get and apply flip flags\n const flipFlags = this.#getViewFlipFlags(\n imageGeometry.getOrientation(),\n viewConfig.orientation);\n this.#applyFlipFlags(flipFlags, drawLayer);\n\n drawLayer.setScale(layerGroup.getScale());\n\n // add possible existing data\n drawLayer.setAnnotationGroup(\n data.annotationGroup,\n dataId,\n this.addToUndoStack);\n\n drawLayer.setCurrentPosition(\n refViewController.getCurrentPosition(),\n refViewController.getCurrentIndex()\n );\n\n /**\n * Add draw layer event.\n *\n * @event Application#drawlayeradd\n * @type {object}\n * @property {string} type The event type.\n */\n this.#fireEvent({\n type: 'drawlayeradd',\n layerid: drawLayer.getId(),\n layergroupid: layerGroup.getDivId(),\n dataid: dataId\n });\n }\n\n /**\n * Get the view flip flags: offset (x, y) and scale (x, y, z) flags.\n *\n * @param {Matrix33} imageOrientation The image orientation.\n * @param {string} viewConfigOrientation The view config orientation.\n * @returns {object} Offset and scale flip flags.\n */\n #getViewFlipFlags(imageOrientation, viewConfigOrientation) {\n // 'simple' orientation code (does not take into account angles)\n const orientationCode =\n getOrientationStringLPS(imageOrientation.asOneAndZeros());\n if (typeof orientationCode === 'undefined') {\n throw new Error('Unsupported undefined orientation code');\n }\n\n // view orientation flags\n const isViewUndefined = typeof viewConfigOrientation === 'undefined';\n const isViewAxial = !isViewUndefined &&\n viewConfigOrientation === Orientation.Axial;\n const isViewCoronal = !isViewUndefined &&\n viewConfigOrientation === Orientation.Coronal;\n const isViewSagittal = !isViewUndefined &&\n viewConfigOrientation === Orientation.Sagittal;\n\n // default flags\n const flipOffset = {\n x: false,\n y: false\n };\n const flipScale = {\n x: false,\n y: false,\n z: false\n };\n\n if (orientationCode === 'LPS') {\n // axial\n if (isViewCoronal || isViewSagittal) {\n flipScale.z = true;\n flipOffset.y = true;\n }\n } else if (orientationCode === 'LAI') {\n // axial\n if (isViewUndefined || isViewAxial) {\n flipOffset.y = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n } else if (isViewSagittal) {\n flipScale.z = true;\n flipOffset.x = true;\n }\n } else if (orientationCode === 'RPI') {\n // axial\n if (isViewUndefined || isViewAxial) {\n flipOffset.x = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n flipOffset.x = true;\n } else if (isViewSagittal) {\n flipScale.z = true;\n }\n } else if (orientationCode === 'RAS') {\n // axial\n flipOffset.x = true;\n flipOffset.y = true;\n if (isViewCoronal || isViewSagittal) {\n flipScale.z = true;\n }\n } else if (orientationCode === 'LSA') {\n // coronal\n flipOffset.y = true;\n if (isViewUndefined || isViewCoronal) {\n flipScale.z = true;\n } else if (isViewAxial) {\n flipScale.y = true;\n } else if (isViewSagittal) {\n flipOffset.x = true;\n flipScale.y = true;\n flipScale.z = true;\n }\n // } else if (orientationCode === 'LIP') { // nothing to do\n } else if (orientationCode === 'RSP') {\n // coronal\n if (isViewUndefined || isViewCoronal) {\n flipOffset.x = true;\n flipOffset.y = true;\n flipScale.x = true;\n flipScale.z = true;\n } else if (isViewAxial) {\n flipOffset.x = true;\n flipScale.x = true;\n } else if (isViewSagittal) {\n flipOffset.y = true;\n flipScale.z = true;\n }\n } else if (orientationCode === 'RIA') {\n // coronal\n flipOffset.x = true;\n if (isViewUndefined || isViewCoronal) {\n flipScale.x = true;\n } else if (isViewAxial) {\n flipOffset.y = true;\n flipScale.x = true;\n flipScale.y = true;\n } else if (isViewSagittal) {\n flipScale.y = true;\n }\n } else if (orientationCode === 'PSL') {\n // sagittal\n flipScale.z = true;\n if (isViewUndefined || isViewSagittal) {\n flipOffset.y = true;\n } else if (isViewCoronal) {\n flipOffset.y = true;\n }\n } else if (orientationCode === 'PIR') {\n // sagittal\n flipScale.z = true;\n if (isViewAxial || isViewCoronal) {\n flipOffset.x = true;\n }\n } else if (orientationCode === 'ASR') {\n // sagittal\n flipOffset.x = true;\n flipOffset.y = true;\n if (isViewUndefined || isViewSagittal) {\n flipScale.z = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n }\n } else if (orientationCode === 'AIL') {\n // sagittal\n if (isViewUndefined || isViewSagittal) {\n flipOffset.x = true;\n flipScale.z = true;\n } else if (isViewAxial) {\n flipOffset.y = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n }\n } else {\n logger.warn('Unsupported orientation code: ' +\n orientationCode + ', display could be incorrect');\n }\n\n return {\n scale: flipScale,\n offset: flipOffset\n };\n }\n\n #applyFlipFlags(flipFlags, layer) {\n if (flipFlags.offset.x) {\n layer.addFlipOffsetX();\n }\n if (flipFlags.offset.y) {\n layer.addFlipOffsetY();\n }\n if (flipFlags.scale.x) {\n layer.flipScaleX();\n }\n if (flipFlags.scale.y) {\n layer.flipScaleY();\n }\n if (flipFlags.scale.z) {\n layer.flipScaleZ();\n }\n }\n\n} // class App\n","import {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mask segment helper: helps handling the segments list,\n * but does *NOT* update the associated mask (use special commands\n * for that such as DeleteSegmentCommand, ChangeSegmentColourCommand...).\n */\nexport class MaskSegmentHelper {\n\n /**\n * The associated mask.\n *\n * @type {Image}\n */\n #mask;\n\n /**\n * The segments: array of segment description.\n *\n * @type {MaskSegment[]}\n */\n #segments;\n\n /**\n * @param {Image} mask The associated mask image.\n */\n constructor(mask) {\n this.#mask = mask;\n // check segments in meta\n const meta = mask.getMeta();\n if (typeof meta.custom === 'undefined') {\n meta.custom = {};\n }\n if (typeof meta.custom.segments === 'undefined') {\n meta.custom.segments = [];\n }\n this.#segments = meta.custom.segments;\n }\n\n /**\n * Find the index of a segment in the segments list.\n *\n * @param {number} segmentNumber The number to find.\n * @returns {number} The index in the segments list, -1 if not found.\n */\n #findSegmentIndex(segmentNumber) {\n return this.#segments.findIndex(function (item) {\n return item.number === segmentNumber;\n });\n }\n\n /**\n * Check if a segment is part of the segments list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {boolean} True if the segment is included.\n */\n hasSegment(segmentNumber) {\n return this.#findSegmentIndex(segmentNumber) !== -1;\n }\n\n /**\n * Check if a segment is present in a mask image.\n *\n * @param {number[]} numbers Array of segment numbers.\n * @returns {boolean[]} Array of boolean set to true\n * if the segment is present in the mask.\n */\n maskHasSegments(numbers) {\n // create values using displayValue\n const values = [];\n const unknowns = [];\n for (let i = 0; i < numbers.length; ++i) {\n const segment = this.getSegment(numbers[i]);\n if (typeof segment !== 'undefined') {\n if (typeof segment.displayValue !== 'undefined') {\n values.push(segment.displayValue);\n } else {\n values.push(segment.displayRGBValue);\n }\n } else {\n logger.warn('Unknown segment in maskHasSegments: ' + numbers[i]);\n unknowns.push(i);\n }\n }\n const res = this.#mask.hasValues(values);\n // insert unknowns as false in result\n for (let j = 0; j < unknowns.length; ++j) {\n res.splice(unknowns[j], 0, false);\n }\n return res;\n }\n\n /**\n * Get a segment from the inner segment list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {MaskSegment|undefined} The segment or undefined if not found.\n */\n getSegment(segmentNumber) {\n let segment;\n const index = this.#findSegmentIndex(segmentNumber);\n if (index !== -1) {\n segment = this.#segments[index];\n }\n return segment;\n }\n\n /**\n * Add a segment to the segments list.\n *\n * @param {MaskSegment} segment The segment to add.\n */\n addSegment(segment) {\n const index = this.#findSegmentIndex(segment.number);\n if (index === -1) {\n this.#segments.push(segment);\n } else {\n logger.warn(\n 'Not adding segment, it is allready in the segments list: ' +\n segment.number);\n }\n }\n\n /**\n * Remove a segment from the segments list.\n *\n * @param {number} segmentNumber The segment number.\n */\n removeSegment(segmentNumber) {\n const index = this.#findSegmentIndex(segmentNumber);\n if (index !== -1) {\n this.#segments.splice(index, 1);\n } else {\n logger.warn(\n 'Cannot remove segment, it is not in the segments list: ' +\n segmentNumber);\n }\n }\n\n /**\n * Update a segment of the segments list.\n *\n * @param {MaskSegment} segment The segment to update.\n */\n updateSegment(segment) {\n const index = this.#findSegmentIndex(segment.number);\n if (index !== -1) {\n this.#segments[index] = segment;\n } else {\n logger.warn(\n 'Cannot update segment, it is not in the segments list: ' +\n segment.number);\n }\n }\n\n} // class MaskSegmentHelper\n","import {MaskSegmentHelper} from './maskSegmentHelper';\nimport {BLACK} from '../utils/colour';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * Delete segment command.\n */\nexport class DeleteSegmentCommand {\n\n /**\n * The associated mask.\n *\n * @type {Image}\n */\n #mask;\n\n /**\n * The segment to remove.\n *\n * @type {MaskSegment}\n */\n #segment;\n\n /**\n * Flag to send creation events.\n *\n * @type {boolean}\n */\n #isSilent;\n\n /**\n * List of offsets.\n *\n * @type {number[]}\n */\n #offsets;\n\n /**\n * @param {Image} mask The mask image.\n * @param {MaskSegment} segment The segment to remove.\n * @param {boolean} [silent] Whether to send a creation event or not.\n */\n constructor(mask, segment, silent) {\n this.#mask = mask;\n this.#segment = segment;\n this.#isSilent = (typeof silent === 'undefined') ? false : silent;\n // list of offsets with the colour to delete\n if (typeof segment.displayRGBValue !== 'undefined') {\n this.#offsets = mask.getOffsets(segment.displayRGBValue);\n } else {\n this.#offsets = mask.getOffsets(segment.displayValue);\n }\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Delete-segment';\n }\n\n /**\n * Check if a command is valid and can be executed.\n *\n * @returns {boolean} True if the command is valid.\n */\n isValid() {\n const segments = this.#mask.getMeta().custom.segments;\n return segments.some(segmentItem =>\n segmentItem.number === this.#segment.number\n );\n }\n\n /**\n * Execute the command.\n *\n * @fires DeleteSegmentCommand#masksegmentdelete\n */\n execute() {\n if (this.#offsets.length !== 0) {\n // remove from image\n if (typeof this.#segment.displayRGBValue !== 'undefined') {\n this.#mask.setAtOffsets(this.#offsets, BLACK);\n } else {\n this.#mask.setAtOffsets(this.#offsets, 0);\n }\n }\n\n // remove from segments\n const segHelper = new MaskSegmentHelper(this.#mask);\n segHelper.removeSegment(this.#segment.number);\n\n // callback\n if (!this.#isSilent) {\n /**\n * Segment delete event.\n *\n * @event DeleteSegmentCommand#masksegmentdelete\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onExecute({\n type: 'masksegmentdelete',\n segmentnumber: this.#segment.number\n });\n }\n }\n\n /**\n * Undo the command.\n *\n * @fires DeleteSegmentCommand#masksegmentredraw\n */\n undo() {\n if (this.#offsets.length !== 0) {\n // re-draw in image\n if (typeof this.#segment.displayRGBValue !== 'undefined') {\n this.#mask.setAtOffsets(this.#offsets, this.#segment.displayRGBValue);\n } else {\n this.#mask.setAtOffsets(this.#offsets, this.#segment.displayValue);\n }\n }\n // add back to segments\n const segHelper = new MaskSegmentHelper(this.#mask);\n segHelper.addSegment(this.#segment);\n\n // callback\n /**\n * Segment redraw event.\n *\n * @event DeleteSegmentCommand#masksegmentredraw\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onUndo({\n type: 'masksegmentredraw',\n segmentnumber: this.#segment.number\n });\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // DeleteSegmentCommand class\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {MaskSegment} from '../dicom/dicomSegment';\nimport {RGB} from '../utils/colour';\n/* eslint-enable no-unused-vars */\n\n/**\n * Change segment colour command.\n */\nexport class ChangeSegmentColourCommand {\n\n /**\n * The associated mask.\n *\n * @type {Image}\n */\n #mask;\n\n /**\n * The segment to modify.\n *\n * @type {MaskSegment}\n */\n #segment;\n\n /**\n * The new segment colour.\n *\n * @type {RGB|number}\n */\n #newColour;\n\n /**\n * The previous segment colour.\n *\n * @type {RGB|number}\n */\n #previousColour;\n\n /**\n * Flag to send creation events.\n *\n * @type {boolean}\n */\n #isSilent;\n\n /**\n * List of offsets.\n *\n * @type {number[]}\n */\n #offsets;\n\n /**\n * @param {Image} mask The mask image.\n * @param {MaskSegment} segment The segment to modify.\n * @param {RGB|number} newColour The new segment colour.\n * @param {boolean} [silent] Whether to send a creation event or not.\n */\n constructor(mask, segment, newColour, silent) {\n this.#mask = mask;\n this.#segment = segment;\n this.#newColour = newColour;\n\n this.#isSilent = (typeof silent === 'undefined') ? false : silent;\n // list of offsets with the colour to delete\n if (typeof segment.displayRGBValue !== 'undefined') {\n this.#previousColour = segment.displayRGBValue;\n } else {\n this.#previousColour = segment.displayValue;\n }\n this.#offsets = mask.getOffsets(this.#previousColour);\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Change-segment-colour';\n }\n\n /**\n * Check if a command is valid and can be executed.\n *\n * @returns {boolean} True if the command is valid.\n */\n isValid() {\n return this.#offsets.length !== 0;\n }\n\n /**\n * Execute the command.\n *\n * @fires ChangeSegmentColourCommand#changemasksegmentcolour\n */\n execute() {\n // remove\n this.#mask.setAtOffsets(this.#offsets, this.#newColour);\n // update segment property\n if (typeof this.#newColour === 'number') {\n this.#segment.displayValue = this.#newColour;\n } else {\n this.#segment.displayRGBValue = this.#newColour;\n }\n\n // callback\n if (!this.#isSilent) {\n /**\n * Segment delete event.\n *\n * @event ChangeSegmentColourCommand#changemasksegmentcolour\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onExecute({\n type: 'changemasksegmentcolour',\n segmentnumber: this.#segment.number,\n value: [this.#newColour]\n });\n }\n }\n\n /**\n * Undo the command.\n *\n * @fires ChangeSegmentColourCommand#changemasksegmentcolour\n */\n undo() {\n // re-draw\n this.#mask.setAtOffsets(this.#offsets, this.#previousColour);\n // update segment property\n if (typeof this.#previousColour === 'number') {\n this.#segment.displayValue = this.#previousColour;\n } else {\n this.#segment.displayRGBValue = this.#previousColour;\n }\n\n // callback\n /**\n * Segment redraw event.\n *\n * @event ChangeSegmentColourCommand#changemasksegmentcolour\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onUndo({\n type: 'changemasksegmentcolour',\n segmentnumber: this.#segment.number,\n value: [this.#previousColour]\n });\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // ChangeSegmentColourCommand class\n","import {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mask segment view helper: handles hidden segments.\n */\nexport class MaskSegmentViewHelper {\n\n /**\n * List of hidden segments.\n *\n * @type {MaskSegment[]}\n */\n #hiddenSegments = [];\n\n #isMonochrome;\n\n /**\n * Get the index of a segment in the hidden list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {number} The index in the array, -1 if not found.\n */\n #findHiddenIndex(segmentNumber) {\n return this.#hiddenSegments.findIndex(function (item) {\n return item.number === segmentNumber;\n });\n }\n\n /**\n * Check if a segment is in the hidden list.\n 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}\n if (values.length === 0) {\n throw new Error('Cannot create index with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val);\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create index with non number values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the index value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number|undefined} The value or undefined if not in range.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the index.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the Index.\n *\n * @returns {string} The Index as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this index.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check if the input index can be compared to this one.\n *\n * @param {Index} rhs The index to compare to.\n * @returns {boolean} True if both indices are comparable.\n */\n canCompare(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n if (this.length() !== rhs.length()) {\n return false;\n }\n // seems ok!\n return true;\n }\n\n /**\n * Check for Index equality.\n *\n * @param {Index} rhs The index to compare to.\n * @returns {boolean} True if both indices are equal.\n */\n equals(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return false;\n }\n // check values\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Compare indices and return different dimensions.\n *\n * @param {Index} rhs The index to compare to.\n * @returns {number[]} The list of different dimensions.\n */\n compare(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return null;\n }\n // check values\n const diffDims = [];\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n diffDims.push(i);\n }\n }\n return diffDims;\n }\n\n /**\n * Add another index to this one.\n *\n * @param {Index} rhs The index to add.\n * @returns {Index} The index representing the sum of both indices.\n */\n add(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return null;\n }\n // add values\n const values = [];\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n values.push(this.get(i) + rhs.get(i));\n }\n // seems ok!\n return new Index(values);\n }\n\n /**\n * Get the current index with a new 2D base.\n *\n * @param {number} i The new 0 index.\n * @param {number} j The new 1 index.\n * @returns {Index} The new index.\n */\n getWithNew2D(i, j) {\n const values = [i, j];\n for (let l = 2, lenl = this.length(); l < lenl; ++l) {\n values.push(this.get(l));\n }\n return new Index(values);\n }\n\n /**\n * Get a string id from the index values in the form of: '#0-1_#1-2'.\n *\n * @param {number[]} [dims] Optional list of dimensions to use.\n * @returns {string} The string id.\n */\n toStringId(dims) {\n if (typeof dims === 'undefined') {\n dims = [];\n for (let j = 0; j < this.length(); ++j) {\n dims.push(j);\n }\n }\n for (let ii = 0; ii < dims.length; ++ii) {\n if (dims[ii] >= this.length()) {\n throw new Error('Non valid dimension for toStringId.');\n }\n }\n let res = '';\n for (let i = 0; i < dims.length; ++i) {\n if (i !== 0) {\n res += '_';\n }\n res += '#' + dims[i] + '-' + this.get(dims[i]);\n }\n return res;\n }\n\n} // Index class\n\n/**\n * Get an index with values set to 0 and the input size.\n *\n * @param {number} size The size of the index.\n * @returns {Index} The zero index.\n */\nexport function getZeroIndex(size) {\n const values = new Array(size);\n values.fill(0);\n return new Index(values);\n}\n\n/**\n * Get an index from an id string in the form of: '#0-1_#1-2'\n * (result of index.toStringId).\n *\n * @param {string} inputStr The input string.\n * @returns {Index} The corresponding index (minimum size is 3D).\n */\nexport function getIndexFromStringId(inputStr) {\n // split ids\n const strIds = inputStr.split('_');\n // get the size of the index (minimum 3)\n let numberOfDims = 3;\n let dim;\n for (let i = 0; i < strIds.length; ++i) {\n // expecting dim < 10\n dim = parseInt(strIds[i].substring(1, 2), 10);\n // dim is zero based\n if (dim + 1 > numberOfDims) {\n numberOfDims = dim + 1;\n }\n }\n // default values\n const values = new Array(numberOfDims);\n values.fill(0);\n // get other values from the input string\n for (let j = 0; j < strIds.length; ++j) {\n // expecting dim < 10\n dim = parseInt(strIds[j].substring(1, 2), 10);\n const value = parseInt(strIds[j].substring(3), 10);\n values[dim] = value;\n }\n\n return new Index(values);\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {RescaleSlopeAndIntercept} from './rsi';\n/* eslint-enable no-unused-vars */\n\n/**\n * Modality LUT class: compensates for any modality-specific presentation.\n * Typically consists of a rescale slope and intercept to\n * rescale the data range.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.11.html}.\n */\nexport class ModalityLut {\n\n /**\n * The rescale slope.\n *\n * @type {RescaleSlopeAndIntercept}\n */\n #rsi;\n\n /**\n * Is the RSI an identity one.\n *\n * @type {boolean}\n */\n #isIdRsi;\n\n /**\n * The size of the LUT array.\n *\n * @type {number}\n */\n #length;\n\n /**\n * The internal LUT array.\n *\n * @type {Float32Array}\n */\n #lut;\n\n /**\n * @param {RescaleSlopeAndIntercept} rsi The rescale slope and intercept.\n * @param {number} bitsStored The number of bits used to store the data.\n */\n constructor(rsi, bitsStored) {\n this.#rsi = rsi;\n this.#isIdRsi = rsi.isID();\n\n this.#length = Math.pow(2, bitsStored);\n\n // create lut if not identity RSI\n if (!this.#isIdRsi) {\n this.#lut = new Float32Array(this.#length);\n for (let i = 0; i < this.#length; ++i) {\n this.#lut[i] = this.#rsi.apply(i);\n }\n }\n }\n\n /**\n * Get the Rescale Slope and Intercept (RSI).\n *\n * @returns {RescaleSlopeAndIntercept} The rescale slope and intercept object.\n */\n getRSI() {\n return this.#rsi;\n }\n\n /**\n * Get the length of the LUT array.\n *\n * @returns {number} The length of the LUT array.\n */\n getLength() {\n return this.#length;\n }\n\n /**\n * Get the value of the LUT at the given offset.\n *\n * @param {number} offset The input offset in [0,2^bitsStored] range\n * or full range for ID rescale.\n * @returns {number} The float32 value of the LUT at the given offset.\n */\n getValue(offset) {\n return this.#isIdRsi ? offset : this.#lut[offset];\n }\n\n} // class ModalityLut\n","export const logger = {\n /**\n * Available log levels.\n * Note: need to activate verbose level in\n * Chrome console to see DEBUG messages.\n */\n levels: {\n TRACE: 0,\n DEBUG: 1,\n INFO: 2,\n WARN: 3,\n ERROR: 4\n },\n\n /**\n * Logger level: default to WARN.\n */\n level: 3,\n\n /**\n * Log a trace message.\n *\n * @param {string} msg The message to log.\n */\n trace: function (msg) {\n if (this.level <= this.levels.TRACE) {\n console.trace(msg);\n }\n },\n\n /**\n * Log a debug message.\n * Careful: depends on console settings.\n *\n * @param {string} msg The message to log.\n */\n debug: function (msg) {\n if (this.level <= this.levels.DEBUG) {\n console.debug(msg);\n }\n },\n\n /**\n * Log an info message.\n *\n * @param {string} msg The message to log.\n */\n info: function (msg) {\n if (this.level <= this.levels.INFO) {\n console.info(msg);\n }\n },\n\n /**\n * Log a warn message.\n *\n * @param {string} msg The message to log.\n */\n warn: function (msg) {\n if (this.level <= this.levels.WARN) {\n console.warn(msg);\n }\n },\n\n /**\n * Log an error message.\n *\n * @param {string} msg The message to log.\n */\n error: function (msg) {\n if (this.level <= this.levels.ERROR) {\n console.error(msg);\n }\n }\n\n}; // logger\n","import {logger} from '../utils/logger';\n\n/**\n * Minimum window width value.\n *\n * Ref: {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.11.2.html#sect_C.11.2.1.2}.\n */\nconst minWindowWidth = 1;\n\n/**\n * Validate an input window width.\n *\n * @param {number} value The value to test.\n * @returns {number} A valid window width.\n */\nexport function validateWindowWidth(value) {\n return value < minWindowWidth ? minWindowWidth : value;\n}\n\n/**\n * Window and Level also known as window width and center.\n */\nexport class WindowLevel {\n /**\n * The window center.\n *\n * @type {number}\n */\n center;\n\n /**\n * The window width.\n *\n * @type {number}\n */\n width;\n\n /**\n * @param {number} center The window center.\n * @param {number} width The window width.\n */\n constructor(center, width) {\n // check width\n if (width < minWindowWidth) {\n logger.warn('Using minimum window width since input is not valid: ' +\n width);\n width = minWindowWidth;\n }\n this.center = center;\n this.width = width;\n }\n\n /**\n * Check for equality.\n *\n * @param {WindowLevel} rhs The other object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.center === rhs.center &&\n this.width === rhs.width;\n }\n\n} // WindowLevel class\n\n/**\n * List of default window level presets.\n *\n * @type {Object.>}\n */\nexport const defaultPresets = {\n CT: {\n mediastinum: new WindowLevel(40, 400),\n lung: new WindowLevel(-500, 1500),\n bone: new WindowLevel(500, 2000),\n brain: new WindowLevel(40, 80),\n head: new WindowLevel(90, 350)\n }\n};\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {WindowLevel} from './windowLevel';\n/* eslint-enable no-unused-vars */\n\n/**\n * VOI (Values of Interest) LUT class: apply window centre and width.\n *\n * ```\n * if (x <= c - 0.5 - (w-1)/2) then y = ymin\n * else if (x > c - 0.5 + (w-1)/2) then y = ymax\n * else y = ((x - (c - 0.5)) / (w-1) + 0.5) * (ymax - ymin) + ymin\n * ```\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.11.2.html}.\n */\nexport class VoiLut {\n\n /**\n * The window and level.\n *\n * @type {WindowLevel}\n */\n #windowLevel;\n\n /**\n * Signed data offset. Defaults to 0.\n *\n * @type {number}\n */\n #signedOffset = 0;\n\n /**\n * Output value minimum. Defaults to 0.\n *\n * @type {number}\n */\n #ymin = 0;\n\n /**\n * Output value maximum. Defaults to 255.\n *\n * @type {number}\n */\n #ymax = 255;\n\n /**\n * Input value minimum (calculated).\n *\n * @type {number}\n */\n #xmin = null;\n\n /**\n * Input value maximum (calculated).\n *\n * @type {number}\n */\n #xmax = null;\n\n /**\n * Window level equation slope (calculated).\n *\n * @type {number}\n */\n #slope = null;\n\n /**\n * Window level equation intercept (calculated).\n *\n * @type {number}\n */\n #inter = null;\n\n /**\n * @param {WindowLevel} wl The window center and width.\n */\n constructor(wl) {\n this.#windowLevel = wl;\n this.#init();\n }\n\n /**\n * Get the window and level.\n *\n * @returns {WindowLevel} The window center and width.\n */\n getWindowLevel() {\n return this.#windowLevel;\n }\n\n /**\n * Initialise members. Called at construction.\n *\n */\n #init() {\n const center = this.#windowLevel.center;\n const width = this.#windowLevel.width;\n const c = center + this.#signedOffset;\n // from the standard\n this.#xmin = c - 0.5 - ((width - 1) / 2);\n this.#xmax = c - 0.5 + ((width - 1) / 2);\n // develop the equation:\n // y = ( ( x - (c - 0.5) ) / (w-1) + 0.5 ) * (ymax - ymin) + ymin\n // y = ( x / (w-1) ) * (ymax - ymin) +\n // ( -(c - 0.5) / (w-1) + 0.5 ) * (ymax - ymin) + ymin\n this.#slope = (this.#ymax - this.#ymin) / (width - 1);\n this.#inter = (-(c - 0.5) / (width - 1) + 0.5) *\n (this.#ymax - this.#ymin) + this.#ymin;\n }\n\n /**\n * Set the signed offset.\n *\n * @param {number} offset The signed data offset,\n * typically: slope * ( size / 2).\n */\n setSignedOffset(offset) {\n this.#signedOffset = offset;\n // re-initialise\n this.#init();\n }\n\n /**\n * Apply the window level on an input value.\n *\n * @param {number} value The value to rescale as an integer.\n * @returns {number} The leveled value, in the\n * [ymin, ymax] range (default [0,255]).\n */\n apply(value) {\n if (value <= this.#xmin) {\n return this.#ymin;\n } else if (value > this.#xmax) {\n return this.#ymax;\n } else {\n return (value * this.#slope) + this.#inter;\n }\n }\n\n} // class VoiLut\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {ModalityLut} from './modalityLut';\nimport {VoiLut} from './voiLut';\n/* eslint-enable no-unused-vars */\n\n/**\n * Window LUT class: combines a modality LUT and a VOI LUT.\n */\nexport class WindowLut {\n\n /**\n * The modality LUT.\n *\n * @type {ModalityLut}\n */\n #modalityLut;\n\n /**\n * The VOI LUT.\n *\n * @type {VoiLut}\n */\n #voiLut;\n\n /**\n * The internal LUT array: Uint8ClampedArray clamps between 0 and 255.\n *\n * @type {Uint8ClampedArray}\n */\n #lut;\n\n /**\n * Shift for signed data.\n *\n * @type {number}\n */\n #signedShift = 0;\n\n /**\n * Is the RSI discrete.\n *\n * @type {boolean}\n */\n #isDiscrete = true;\n\n /**\n * Construct a window LUT object, VOI LUT is set with\n * the 'setVoiLut' method.\n *\n * @param {ModalityLut} modalityLut The associated rescale LUT.\n * @param {boolean} isSigned Flag to know if the data is signed or not.\n * @param {boolean} isDiscrete Flag to know if the input data is discrete.\n */\n constructor(modalityLut, isSigned, isDiscrete) {\n this.#modalityLut = modalityLut;\n\n if (isSigned) {\n const size = this.#modalityLut.getLength();\n this.#signedShift = size / 2;\n } else {\n this.#signedShift = 0;\n }\n\n this.#isDiscrete = isDiscrete;\n }\n\n /**\n * Get the VOI LUT.\n *\n * @returns {VoiLut} The VOI LUT.\n */\n getVoiLut() {\n return this.#voiLut;\n }\n\n /**\n * Get the modality LUT.\n *\n * @returns {ModalityLut} The modality LUT.\n */\n getModalityLut() {\n return this.#modalityLut;\n }\n\n /**\n * Set the VOI LUT.\n *\n * @param {VoiLut} lut The VOI LUT.\n */\n setVoiLut(lut) {\n // store the window values\n this.#voiLut = lut;\n\n // possible signed shift (LUT indices are positive)\n this.#voiLut.setSignedOffset(\n this.#modalityLut.getRSI().getSlope() * this.#signedShift);\n\n // create lut if not continous\n if (this.#isDiscrete) {\n const size = this.#modalityLut.getLength();\n // use clamped array (polyfilled in env.js)\n this.#lut = new Uint8ClampedArray(size);\n // by default WindowLevel returns a value in the [0,255] range\n // this is ok with regular Arrays and ClampedArray.\n for (let i = 0; i < size; ++i) {\n this.#lut[i] = this.#voiLut.apply(this.#modalityLut.getValue(i));\n }\n }\n }\n\n /**\n * Get the value of the LUT at the given offset.\n *\n * @param {number} offset The input offset in [0,2^bitsStored] range\n * for discrete data or full range for non discrete.\n * @returns {number} The integer value (default [0,255]) of the LUT\n * at the given offset.\n */\n getValue(offset) {\n if (this.#isDiscrete) {\n return this.#lut[offset + this.#signedShift];\n } else {\n return Math.floor(this.#voiLut.apply(offset + this.#signedShift));\n }\n }\n\n} // class WindowLut\n","/**\n * Lookup tables for image colour display.\n */\n\nconst lut_range_max = 256;\n\n/**\n * Build a LUT of size lut_range_max.\n *\n * @param {Function} func The i to lut function.\n * @returns {number[]} The LUT.\n */\nfunction buildLut(func) {\n const lut = [];\n for (let i = 0; i < lut_range_max; ++i) {\n lut.push(func(i));\n }\n return lut;\n}\n\n/**\n * Ramp to lut_range_max minus one on the first third values.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction toMaxFirstThird(i) {\n const val = i * 3;\n if (val > lut_range_max - 1) {\n return lut_range_max - 1;\n }\n return val;\n}\n\n/**\n * Ramp to lut_range_max minus one on the second third values,\n * otherwise return 0 for the first third and\n * lut_range_max minus one for the last third.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction toMaxSecondThird(i) {\n const third = lut_range_max / 3;\n let val = 0;\n if (i >= third) {\n val = (i - third) * 3;\n if (val > lut_range_max - 1) {\n return lut_range_max - 1;\n }\n }\n return val;\n}\n\n/**\n * Ramp to lut_range_max minus one on the last third values,\n * otherwise return 0.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction toMaxThirdThird(i) {\n const third = lut_range_max / 3;\n let val = 0;\n if (i >= 2 * third) {\n val = (i - 2 * third) * 3;\n if (val > lut_range_max - 1) {\n return lut_range_max - 1;\n }\n }\n return val;\n}\n\n/**\n * Identity, returns i.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction id(i) {\n return i;\n}\n\n/**\n * Returns lut_range_max minus one minus i.\n *\n * @param {number} i The input index.\n * @returns {number} The lut value.\n */\nfunction invId(i) {\n return (lut_range_max - 1) - i;\n}\n\n/**\n * Colour map: red, green and blue components\n * to associate with intensity values.\n */\nexport class ColourMap {\n /**\n * Red component: 256 values in the [0, 255] range.\n *\n * @type {number[]}\n */\n red;\n /**\n * Green component: 256 values in the [0, 255] range.\n *\n * @type {number[]}\n */\n green;\n /**\n * Blue component: 256 values in the [0, 255] range.\n *\n * @type {number[]}\n */\n blue;\n\n /**\n * @param {number[]} red Red component.\n * @param {number[]} green Green component.\n * @param {number[]} blue Blue component.\n */\n constructor(red, green, blue) {\n this.red = red;\n this.green = green;\n this.blue = blue;\n }\n}\n\n/**\n * List of available lookup tables (lut).\n *\n * @type {Object}\n */\nexport const luts = {\n // plain\n plain: {\n red: buildLut(id),\n green: buildLut(id),\n blue: buildLut(id)\n },\n\n // inverse plain\n invPlain: {\n red: buildLut(invId),\n green: buildLut(invId),\n blue: buildLut(invId)\n },\n\n // rainbow\n /* eslint-disable @stylistic/js/max-len */\n rainbow: {\n blue: [0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 255, 247, 239, 231, 223, 215, 207, 199, 191, 183, 175, 167, 159, 151, 143, 135, 127, 119, 111, 103, 95, 87, 79, 71, 63, 55, 47, 39, 31, 23, 15, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 253, 251, 249, 247, 245, 243, 241, 239, 237, 235, 233, 231, 229, 227, 225, 223, 221, 219, 217, 215, 213, 211, 209, 207, 205, 203, 201, 199, 197, 195, 193, 192, 189, 186, 183, 180, 177, 174, 171, 168, 165, 162, 159, 156, 153, 150, 147, 144, 141, 138, 135, 132, 129, 126, 123, 120, 117, 114, 111, 108, 105, 102, 99, 96, 93, 90, 87, 84, 81, 78, 75, 72, 69, 66, 63, 60, 57, 54, 51, 48, 45, 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9, 6, 3],\n red: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 62, 60, 58, 56, 54, 52, 50, 48, 46, 44, 42, 40, 38, 36, 34, 32, 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // hot\n hot: {\n red: buildLut(toMaxFirstThird),\n green: buildLut(toMaxSecondThird),\n blue: buildLut(toMaxThirdThird)\n },\n\n // hot iron\n /* eslint-disable @stylistic/js/max-len */\n hot_iron: {\n red: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 255],\n blue: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 204, 208, 212, 216, 220, 224, 228, 232, 236, 240, 244, 248, 252, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // pet\n /* eslint-disable @stylistic/js/max-len */\n pet: {\n red: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 128, 126, 124, 122, 120, 118, 116, 114, 112, 110, 108, 106, 104, 102, 100, 98, 96, 94, 92, 90, 88, 86, 84, 82, 80, 78, 76, 74, 72, 70, 68, 66, 64, 63, 61, 59, 57, 55, 53, 51, 49, 47, 45, 43, 41, 39, 37, 35, 33, 31, 29, 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240, 242, 244, 246, 248, 250, 252, 255],\n blue: [0, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 252, 248, 244, 240, 236, 232, 228, 224, 220, 216, 212, 208, 204, 200, 196, 192, 188, 184, 180, 176, 172, 168, 164, 160, 156, 152, 148, 144, 140, 136, 132, 128, 124, 120, 116, 112, 108, 104, 100, 96, 92, 88, 84, 80, 76, 72, 68, 64, 60, 56, 52, 48, 44, 40, 36, 32, 28, 24, 20, 16, 12, 8, 4, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 129, 133, 137, 141, 145, 149, 153, 157, 161, 165, 170, 174, 178, 182, 186, 190, 194, 198, 202, 206, 210, 214, 218, 222, 226, 230, 234, 238, 242, 246, 250, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // hot metal blue\n /* eslint-disable @stylistic/js/max-len */\n hot_metal_blue: {\n red: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 6, 9, 12, 15, 18, 21, 24, 26, 29, 32, 35, 38, 41, 44, 47, 50, 52, 55, 57, 59, 62, 64, 66, 69, 71, 74, 76, 78, 81, 83, 85, 88, 90, 93, 96, 99, 102, 105, 108, 111, 114, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 161, 164, 166, 169, 172, 175, 178, 181, 184, 187, 190, 194, 198, 201, 205, 209, 213, 217, 221, 224, 228, 232, 236, 240, 244, 247, 251, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 6, 8, 9, 11, 13, 15, 17, 19, 21, 23, 24, 26, 28, 30, 32, 34, 36, 38, 40, 41, 43, 45, 47, 49, 51, 53, 55, 56, 58, 60, 62, 64, 66, 68, 70, 72, 73, 75, 77, 79, 81, 83, 85, 87, 88, 90, 92, 94, 96, 98, 100, 102, 104, 105, 107, 109, 111, 113, 115, 117, 119, 120, 122, 124, 126, 128, 130, 132, 134, 136, 137, 139, 141, 143, 145, 147, 149, 151, 152, 154, 156, 158, 160, 162, 164, 166, 168, 169, 171, 173, 175, 177, 179, 181, 183, 184, 186, 188, 190, 192, 194, 196, 198, 200, 201, 203, 205, 207, 209, 211, 213, 215, 216, 218, 220, 222, 224, 226, 228, 229, 231, 233, 235, 237, 239, 240, 242, 244, 246, 248, 250, 251, 253, 255],\n blue: [0, 2, 4, 6, 8, 10, 12, 14, 16, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 184, 186, 188, 190, 192, 194, 196, 198, 200, 197, 194, 191, 188, 185, 182, 179, 176, 174, 171, 168, 165, 162, 159, 156, 153, 150, 144, 138, 132, 126, 121, 115, 109, 103, 97, 91, 85, 79, 74, 68, 62, 56, 50, 47, 44, 41, 38, 35, 32, 29, 26, 24, 21, 18, 15, 12, 9, 6, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 6, 9, 12, 15, 18, 21, 24, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 174, 176, 179, 182, 185, 188, 191, 194, 197, 200, 203, 206, 210, 213, 216, 219, 223, 226, 229, 232, 236, 239, 242, 245, 249, 252, 255]\n },\n /* eslint-enable @stylistic/js/max-len */\n\n // pet 20 step\n /* eslint-disable @stylistic/js/max-len */\n pet_20step: {\n red: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n green: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 208, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255],\n blue: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 112, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 176, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 192, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255]\n }\n /* eslint-enable @stylistic/js/max-len */\n};\n","// example implementation: dcmtk/dcmiod/libsrc/cielabutil.cc\n// https://github.com/DCMTK/dcmtk/blob/DCMTK-3.6.6/dcmiod/libsrc/cielabutil.cc\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * RGB colour class.\n */\nexport class RGB {\n /**\n * Red component.\n *\n * @type {number}\n */\n r;\n /**\n * Green component.\n *\n * @type {number}\n */\n g;\n /**\n * Blue component.\n *\n * @type {number}\n */\n b;\n /**\n * @param {number} r Red component.\n * @param {number} g Green component.\n * @param {number} b Blue component.\n */\n constructor(r, g, b) {\n this.r = r;\n this.g = g;\n this.b = b;\n }\n}\n\n// black rgb\nexport const BLACK = {r: 0, g: 0, b: 0};\n\n/**\n * Check if two rgb objects are equal.\n *\n * @param {RGB} c1 The first colour.\n * @param {RGB} c2 The second colour.\n * @returns {boolean} True if both colour are equal.\n */\nexport function isEqualRgb(c1, c2) {\n return c1 !== null &&\n c2 !== null &&\n typeof c1 !== 'undefined' &&\n typeof c2 !== 'undefined' &&\n c1.r === c2.r &&\n c1.g === c2.g &&\n c1.b === c2.b;\n}\n\n/**\n * Convert YBR to RGB.\n *\n * Ref:\n * - {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.7.6.3.html#sect_C.7.6.3.1.2},\n * - {@link https://en.wikipedia.org/wiki/YCbCr#JPEG_conversion}.\n *\n * @param {number} y The Y component.\n * @param {number} cb The Cb component.\n * @param {number} cr The Cr component.\n * @returns {RGB} RGB equivalent as {r,g,b}.\n */\nexport function ybrToRgb(y, cb, cr) {\n return {\n r: y + 1.402 * (cr - 128),\n g: y - 0.34414 * (cb - 128) - 0.71414 * (cr - 128),\n b: y + 1.772 * (cb - 128)\n };\n}\n\n/**\n * Convert a hex color into RGB.\n *\n * @param {string} hexStr The hex color as '#ab01ef'.\n * @returns {RGB} The RGB values as {r,g,b}.\n */\nexport function hexToRgb(hexStr) {\n return {\n r: parseInt(hexStr.substring(1, 3), 16),\n g: parseInt(hexStr.substring(3, 5), 16),\n b: parseInt(hexStr.substring(5, 7), 16)\n };\n}\n\n/**\n * Convert RGB to its hex equivalent.\n *\n * @param {RGB} rgb The RGB object as {r,g,b}.\n * @returns {string} A string representing the hex color as '#ab01ef'.\n */\nexport function rgbToHex(rgb) {\n return '#' +\n ((1 << 24) + (rgb.r << 16) + (rgb.g << 8) + rgb.b).toString(16).slice(1);\n}\n\n/**\n * Get the brightness of a RGB colour: calculates\n * the luma (Y) of the YIQ colour space.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/YIQ#From_RGB_to_YIQ}.\n *\n * @param {RGB} rgb RGB triplet.\n * @returns {number} The brightness ([0,1]).\n */\nexport function getBrightness(rgb) {\n // 0.001172549 = 0.299 / 255\n // 0.002301961 = 0.587 / 255\n // 0.000447059 = 0.114 / 255\n return rgb.r * 0.001172549 +\n rgb.g * 0.002301961 +\n rgb.b * 0.000447059;\n}\n\n/**\n * Check if a colour given in hexadecimal format is dark.\n *\n * @param {string} hexColour The colour (as '#ab01ef').\n * @returns {boolean} True if the colour is dark (brightness < 0.5).\n */\nexport function isDarkColour(hexColour) {\n return getBrightness(hexToRgb(hexColour)) < 0.5;\n}\n\n/**\n * Get the shadow colour of an input colour.\n *\n * @param {string} hexColour The colour (as '#ab01ef').\n * @returns {string} The shadow colour (white or black).\n */\nexport function getShadowColour(hexColour) {\n return isDarkColour(hexColour) ? '#fff' : '#000';\n}\n\n/**\n * Unsigned int CIE LAB value ([0, 65535]) to CIE LAB value\n * (L: [0, 100], a: [-128, 127], b: [-128, 127]).\n *\n * @param {object} triplet CIE LAB triplet as {l,a,b} with unsigned range.\n * @returns {object} CIE LAB triplet as {l,a,b} with CIE LAB range.\n */\nexport function uintLabToLab(triplet) {\n // 0.001525902 = 100 / 65535\n // 0.003891051 = 255 / 65535\n return {\n l: 0.001525902 * triplet.l,\n a: 0.003891051 * triplet.a - 128,\n b: 0.003891051 * triplet.b - 128,\n };\n}\n\n/**\n * CIE LAB value (L: [0, 100], a: [-128, 127], b: [-128, 127]) to\n * unsigned int CIE LAB ([0, 65535]).\n *\n * @param {object} triplet CIE XYZ triplet as {l,a,b} with CIE LAB range.\n * @returns {object} CIE LAB triplet as {l,a,b} with unsigned range.\n */\nexport function labToUintLab(triplet) {\n // 655.35 = 65535 / 100\n // aUint = (a + 128) * 65535 / 255\n // 257 = 65535 / 255\n // 32896 = 257 * 128\n return {\n l: 655.35 * triplet.l,\n a: 257 * triplet.a + 32896,\n b: 257 * triplet.b + 32896,\n };\n}\n\n/**\n * CIE Standard Illuminant D65, standard 2° observer.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/Illuminant_D65}.\n */\nconst d65 = {\n x: 95.0489,\n y: 100,\n z: 108.884\n};\n\n/**\n * Convert CIE LAB to CIE XYZ (standard illuminant D65, 2degree 1931).\n *\n * Ref: {@link https://en.wikipedia.org/wiki/CIELAB_color_space#From_CIELAB_to_CIEXYZ}.\n *\n * @param {object} triplet CIE LAB triplet as {l,a,b}.\n * @returns {Scalar3D} CIE XYZ triplet as {x,y,z}.\n */\nexport function cielabToCiexyz(triplet) {\n /**\n * Apply the inverse lab function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function invLabFunc(x) {\n let res = null;\n // delta = 6 / 29 = 0.206896552\n if (x > 0.206896552) {\n res = Math.pow(x, 3);\n } else {\n // 0.128418549 = 3 * delta^2\n // 0.017712903 = 3 * delta^2 * (4 / 29)\n res = 0.128418549 * x - 0.017712903;\n }\n return res;\n }\n\n const illuminant = d65;\n const l0 = (triplet.l + 16) / 116;\n\n return {\n x: illuminant.x * invLabFunc(l0 + triplet.a / 500),\n y: illuminant.y * invLabFunc(l0),\n z: illuminant.z * invLabFunc(l0 - triplet.b / 200)\n };\n}\n\n/**\n * Convert CIE XYZ to CIE LAB (standard illuminant D65, 2degree 1931).\n *\n * Ref: {@link https://en.wikipedia.org/wiki/CIELAB_color_space#From_CIEXYZ_to_CIELAB}.\n *\n * @param {Scalar3D} triplet CIE XYZ triplet as {x,y,z}.\n * @returns {object} CIE LAB triplet as {l,a,b}.\n */\nexport function ciexyzToCielab(triplet) {\n /**\n * Apply the lab function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function labFunc(x) {\n let res = null;\n // delta = 6 / 29 = 0.206896552\n // delta^3 = 0.008856452\n if (x > 0.008856452) {\n res = Math.pow(x, 0.333333333);\n } else {\n // 7.787037037 = 1 / 3 * delta^2\n // 0.137931034 = 4 / 29\n res = 7.787037037 * x + 0.137931034;\n }\n return res;\n }\n\n const illuminant = d65;\n const fy = labFunc(triplet.y / illuminant.y);\n\n return {\n l: 116 * fy - 16,\n a: 500 * (labFunc(triplet.x / illuminant.x) - fy),\n b: 200 * (fy - labFunc(triplet.z / illuminant.z))\n };\n}\n\n/**\n * Convert CIE XYZ to sRGB.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/SRGB#From_CIE_XYZ_to_sRGB}.\n *\n * @param {Scalar3D} triplet CIE XYZ triplet as {x,y,z}.\n * @returns {RGB} 'sRGB' triplet as {r,g,b}.\n */\nexport function ciexyzToSrgb(triplet) {\n /**\n * Apply the gamma function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function gammaFunc(x) {\n let res = null;\n if (x <= 0.0031308) {\n res = 12.92 * x;\n } else {\n // 0.416666667 = 1 / 2.4\n res = 1.055 * Math.pow(x, 0.416666667) - 0.055;\n }\n // clip [0,1]\n return Math.min(1, Math.max(0, res));\n }\n\n const x = triplet.x / 100;\n const y = triplet.y / 100;\n const z = triplet.z / 100;\n\n return {\n r: Math.round(255 * gammaFunc(3.2406 * x - 1.5372 * y - 0.4986 * z)),\n g: Math.round(255 * gammaFunc(-0.9689 * x + 1.8758 * y + 0.0415 * z)),\n b: Math.round(255 * gammaFunc(0.0557 * x - 0.2040 * y + 1.0570 * z))\n };\n}\n\n/**\n * Convert sRGB to CIE XYZ.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/SRGB#From_sRGB_to_CIE_XYZ}.\n *\n * @param {RGB} triplet 'sRGB' triplet as {r,g,b}.\n * @returns {Scalar3D} CIE XYZ triplet as {x,y,z}.\n */\nexport function srgbToCiexyz(triplet) {\n /**\n * Apply the inverse gamma function.\n *\n * @param {number} x The input value.\n * @returns {number} The result.\n */\n function invGammaFunc(x) {\n let res = null;\n if (x <= 0.04045) {\n res = x / 12.92;\n } else {\n res = Math.pow((x + 0.055) / 1.055, 2.4);\n }\n return res;\n }\n\n const rl = invGammaFunc(triplet.r / 255);\n const gl = invGammaFunc(triplet.g / 255);\n const bl = invGammaFunc(triplet.b / 255);\n\n return {\n x: 100 * (0.4124 * rl + 0.3576 * gl + 0.1805 * bl),\n y: 100 * (0.2126 * rl + 0.7152 * gl + 0.0722 * bl),\n z: 100 * (0.0193 * rl + 0.1192 * gl + 0.9505 * bl)\n };\n}\n\n/**\n * Convert CIE LAB to sRGB (standard illuminant D65).\n *\n * @param {object} triplet CIE LAB triplet as {l,a,b}.\n * @returns {RGB} 'sRGB' triplet as {r,g,b}.\n */\nexport function cielabToSrgb(triplet) {\n return ciexyzToSrgb(cielabToCiexyz(triplet));\n}\n\n/**\n * Convert sRGB to CIE LAB (standard illuminant D65).\n *\n * @param {RGB} triplet 'sRGB' triplet as {r,g,b}.\n * @returns {object} CIE LAB triplet as {l,a,b}.\n */\nexport function srgbToCielab(triplet) {\n return ciexyzToCielab(srgbToCiexyz(triplet));\n}\n\n/**\n * Get the hex code of a string colour for a colour used in pre dwv v0.17.\n *\n * @param {string} name The name of a colour.\n * @returns {string} The hex representing the colour.\n */\nexport function colourNameToHex(name) {\n // default colours used in dwv version < 0.17\n const dict = {\n Yellow: '#ffff00',\n Red: '#ff0000',\n White: '#ffffff',\n Green: '#008000',\n Blue: '#0000ff',\n Lime: '#00ff00',\n Fuchsia: '#ff00ff',\n Black: '#000000'\n };\n let res = '#ffff00';\n if (typeof dict[name] !== 'undefined') {\n res = dict[name];\n }\n return res;\n}\n","/**\n * Immutable 3D vector.\n */\nexport class Vector3D {\n\n /**\n * X coordinate.\n *\n * @type {number}\n */\n #x;\n\n /**\n * Y coordinate.\n *\n * @type {number}\n */\n #y;\n\n /**\n * Z coordinate.\n *\n * @type {number}\n */\n #z;\n\n /**\n * @param {number} x The X component of the vector.\n * @param {number} y The Y component of the vector.\n * @param {number} z The Z component of the vector.\n */\n constructor(x, y, z) {\n this.#x = x;\n this.#y = y;\n this.#z = z;\n }\n\n /**\n * Get the X component of the vector.\n *\n * @returns {number} The X component of the vector.\n */\n getX() {\n return this.#x;\n }\n\n /**\n * Get the Y component of the vector.\n *\n * @returns {number} The Y component of the vector.\n */\n getY() {\n return this.#y;\n }\n\n /**\n * Get the Z component of the vector.\n *\n * @returns {number} The Z component of the vector.\n */\n getZ() {\n return this.#z;\n }\n\n /**\n * Check for Vector3D equality.\n *\n * @param {Vector3D} rhs The other vector to compare to.\n * @returns {boolean} True if both vectors are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.#x === rhs.getX() &&\n this.#y === rhs.getY() &&\n this.#z === rhs.getZ();\n }\n\n /**\n * Get a string representation of the Vector3D.\n *\n * @returns {string} The vector as a string.\n */\n toString() {\n return '(' + this.#x +\n ', ' + this.#y +\n ', ' + this.#z + ')';\n }\n\n /**\n * Get the norm of the vector.\n *\n * @returns {number} The norm.\n */\n norm() {\n return Math.sqrt(\n (this.#x * this.#x) +\n (this.#y * this.#y) +\n (this.#z * this.#z)\n );\n }\n\n /**\n * Get the cross product with another Vector3D, ie the\n * vector that is perpendicular to both a and b.\n * If both vectors are parallel, the cross product is a zero vector.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/Cross_product}.\n *\n * @param {Vector3D} vector3D The input vector.\n * @returns {Vector3D} The result vector.\n */\n crossProduct(vector3D) {\n return new Vector3D(\n (this.#y * vector3D.getZ()) - (vector3D.getY() * this.#z),\n (this.#z * vector3D.getX()) - (vector3D.getZ() * this.#x),\n (this.#x * vector3D.getY()) - (vector3D.getX() * this.#y));\n }\n\n /**\n * Get the dot product with another Vector3D.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/Dot_product}.\n *\n * @param {Vector3D} vector3D The input vector.\n * @returns {number} The dot product.\n */\n dotProduct(vector3D) {\n return (this.#x * vector3D.getX()) +\n (this.#y * vector3D.getY()) +\n (this.#z * vector3D.getZ());\n }\n\n /**\n * Is this vector codirectional to an input one.\n *\n * @param {Vector3D} vector3D The vector to test.\n * @returns {boolean} True if codirectional, false is opposite.\n */\n isCodirectional(vector3D) {\n // a.dot(b) = ||a|| * ||b|| * cos(theta)\n // (https://en.wikipedia.org/wiki/Dot_product#Geometric_definition)\n // -> the sign of the dot product depends on the cosinus of\n // the angle between the vectors\n // -> >0 => vectors are codirectional\n // -> <0 => vectors are opposite\n return this.dotProduct(vector3D) > 0;\n }\n\n} // Vector3D class","import {Vector3D} from './vector';\nimport {Point3D} from './point';\nimport {Index} from './index';\nimport {logger} from '../utils/logger';\n\n// Number.EPSILON is difference between 1 and the smallest\n// floating point number greater than 1\n// -> ~2e-16\n// BIG_EPSILON -> ~2e-12\nexport const BIG_EPSILON = Number.EPSILON * 1e4;\n// 'real world', for example when comparing positions\nexport const REAL_WORLD_EPSILON = 1e-4;\n\n/**\n * Check if two numbers are similar.\n *\n * @param {number} a The first number.\n * @param {number} b The second number.\n * @param {number} tol The comparison tolerance,\n * default to Number.EPSILON.\n * @returns {boolean} True if similar.\n */\nexport function isSimilar(a, b, tol) {\n if (typeof tol === 'undefined') {\n tol = Number.EPSILON;\n }\n return Math.abs(a - b) < tol;\n}\n\n/**\n * Immutable 3x3 Matrix.\n */\nexport class Matrix33 {\n\n /**\n * Matrix values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * Matrix inverse, calculated at first ask.\n *\n * @type {Matrix33}\n */\n #inverse;\n\n /**\n * @param {number[]} values Row-major ordered 9 values.\n */\n constructor(values) {\n this.#values = values;\n }\n\n /**\n * Get a value of the matrix.\n *\n * @param {number} row The row at wich to get the value.\n * @param {number} col The column at wich to get the value.\n * @returns {number|undefined} The value at the position.\n */\n get(row, col) {\n return this.#values[row * 3 + col];\n }\n\n /**\n * Get the inverse of this matrix.\n *\n * @returns {Matrix33|undefined} The inverse matrix or undefined\n * if the determinant is zero.\n */\n getInverse() {\n if (typeof this.#inverse === 'undefined') {\n this.#inverse = getMatrixInverse(this);\n }\n return this.#inverse;\n }\n\n /**\n * Check for Matrix33 equality.\n *\n * @param {Matrix33} rhs The other matrix to compare to.\n * @param {number} [p] A numeric expression for the precision to use in check\n * (ex: 0.001). Defaults to Number.EPSILON if not provided.\n * @returns {boolean} True if both matrices are equal.\n */\n equals(rhs, p) {\n // TODO: add type check\n // check values\n for (let i = 0; i < 3; ++i) {\n for (let j = 0; j < 3; ++j) {\n if (!isSimilar(this.get(i, j), rhs.get(i, j), p)) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * Get a string representation of the Matrix33.\n *\n * @returns {string} The matrix as a string.\n */\n toString() {\n let str = '[';\n for (let i = 0; i < 3; ++i) {\n if (i !== 0) {\n str += ', \\n ';\n }\n for (let j = 0; j < 3; ++j) {\n if (j !== 0) {\n str += ', ';\n }\n str += this.get(i, j);\n }\n }\n str += ']';\n return str;\n }\n\n /**\n * Multiply this matrix by another.\n *\n * @param {Matrix33} rhs The matrix to multiply by.\n * @returns {Matrix33} The product matrix.\n */\n multiply(rhs) {\n const values = [];\n for (let i = 0; i < 3; ++i) {\n for (let j = 0; j < 3; ++j) {\n let tmp = 0;\n for (let k = 0; k < 3; ++k) {\n tmp += this.get(i, k) * rhs.get(k, j);\n }\n values.push(tmp);\n }\n }\n return new Matrix33(values);\n }\n\n /**\n * Get the absolute value of this matrix.\n *\n * @returns {Matrix33} The result matrix.\n */\n getAbs() {\n const values = [];\n for (let i = 0; i < 3; ++i) {\n for (let j = 0; j < 3; ++j) {\n values.push(Math.abs(this.get(i, j)));\n }\n }\n return new Matrix33(values);\n }\n\n /**\n * Multiply this matrix by a 3D array.\n *\n * @param {number[]} array3D The input 3D array.\n * @returns {number[]} The result 3D array.\n */\n multiplyArray3D(array3D) {\n if (array3D.length !== 3) {\n throw new Error('Cannot multiply 3x3 matrix with non 3D array: ' +\n array3D.length);\n }\n const values = [];\n for (let i = 0; i < 3; ++i) {\n let tmp = 0;\n for (let j = 0; j < 3; ++j) {\n tmp += this.get(i, j) * array3D[j];\n }\n values.push(tmp);\n }\n return values;\n }\n\n /**\n * Multiply this matrix by a 3D vector.\n *\n * @param {Vector3D} vector3D The input 3D vector.\n * @returns {Vector3D} The result 3D vector.\n */\n multiplyVector3D(vector3D) {\n const array3D = this.multiplyArray3D(\n [vector3D.getX(), vector3D.getY(), vector3D.getZ()]\n );\n return new Vector3D(array3D[0], array3D[1], array3D[2]);\n }\n\n /**\n * Multiply this matrix by a 3D point.\n *\n * @param {Point3D} point3D The input 3D point.\n * @returns {Point3D} The result 3D point.\n */\n multiplyPoint3D(point3D) {\n const array3D = this.multiplyArray3D(\n [point3D.getX(), point3D.getY(), point3D.getZ()]\n );\n return new Point3D(array3D[0], array3D[1], array3D[2]);\n }\n\n /**\n * Multiply this matrix by a 3D index.\n *\n * @param {Index} index3D The input 3D index.\n * @returns {Index} The result 3D index.\n */\n multiplyIndex3D(index3D) {\n const array3D = this.multiplyArray3D(index3D.getValues());\n return new Index(array3D);\n }\n\n /**\n * Get the index of the maximum in absolute value of a row.\n *\n * @param {number} row The row to get the maximum from.\n * @returns {object} The {value,index} of the maximum.\n */\n getRowAbsMax(row) {\n const values = [\n Math.abs(this.get(row, 0)),\n Math.abs(this.get(row, 1)),\n Math.abs(this.get(row, 2))\n ];\n const absMax = Math.max.apply(null, values);\n const index = values.indexOf(absMax);\n return {\n value: this.get(row, index),\n index: index\n };\n }\n\n /**\n * Get the index of the maximum in absolute value of a column.\n *\n * @param {number} col The column to get the maximum from.\n * @returns {object} The {value,index} of the maximum.\n */\n getColAbsMax(col) {\n const values = [\n Math.abs(this.get(0, col)),\n Math.abs(this.get(1, col)),\n Math.abs(this.get(2, col))\n ];\n const absMax = Math.max.apply(null, values);\n const index = values.indexOf(absMax);\n return {\n value: this.get(index, col),\n index: index\n };\n }\n\n /**\n * Get this matrix with only zero and +/- ones instead of the maximum.\n *\n * @returns {Matrix33} The simplified matrix.\n */\n asOneAndZeros() {\n const res = [];\n for (let j = 0; j < 3; ++j) {\n const max = this.getRowAbsMax(j);\n const sign = max.value > 0 ? 1 : -1;\n for (let i = 0; i < 3; ++i) {\n if (i === max.index) {\n //res.push(1);\n res.push(1 * sign);\n } else {\n res.push(0);\n }\n }\n }\n return new Matrix33(res);\n }\n\n /**\n * Get the third column direction index of an orientation matrix.\n *\n * @returns {number} The index of the absolute maximum of the last column.\n */\n getThirdColMajorDirection() {\n return this.getColAbsMax(2).index;\n }\n\n} // Matrix33\n\n/**\n * Get the inverse of an input 3*3 matrix.\n *\n * Ref:\n * - {@link https://en.wikipedia.org/wiki/Invertible_matrix#Inversion_of_3_%C3%97_3_matrices},\n * - {@link https://github.com/willnode/N-Matrix-Programmer}.\n *\n * @param {Matrix33} m The input matrix.\n * @returns {Matrix33|undefined} The inverse matrix or undefined\n * if the determinant is zero.\n */\nfunction getMatrixInverse(m) {\n const m00 = m.get(0, 0);\n const m01 = m.get(0, 1);\n const m02 = m.get(0, 2);\n const m10 = m.get(1, 0);\n const m11 = m.get(1, 1);\n const m12 = m.get(1, 2);\n const m20 = m.get(2, 0);\n const m21 = m.get(2, 1);\n const m22 = m.get(2, 2);\n\n const a1212 = m11 * m22 - m12 * m21;\n const a2012 = m12 * m20 - m10 * m22;\n const a0112 = m10 * m21 - m11 * m20;\n\n let det = m00 * a1212 + m01 * a2012 + m02 * a0112;\n if (det === 0) {\n logger.warn('Cannot invert 3*3 matrix with zero determinant.');\n return undefined;\n }\n det = 1 / det;\n\n const values = [\n det * a1212,\n det * (m02 * m21 - m01 * m22),\n det * (m01 * m12 - m02 * m11),\n det * a2012,\n det * (m00 * m22 - m02 * m20),\n det * (m02 * m10 - m00 * m12),\n det * a0112,\n det * (m01 * m20 - m00 * m21),\n det * (m00 * m11 - m01 * m10)\n ];\n\n return new Matrix33(values);\n}\n\n/**\n * Create a 3x3 identity matrix.\n *\n * @returns {Matrix33} The identity matrix.\n */\nexport function getIdentityMat33() {\n /* eslint-disable @stylistic/js/array-element-newline */\n return new Matrix33([\n 1, 0, 0,\n 0, 1, 0,\n 0, 0, 1\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n}\n\n/**\n * Check if a matrix is a 3x3 identity matrix.\n *\n * @param {Matrix33} mat33 The matrix to test.\n * @returns {boolean} True if identity.\n */\nexport function isIdentityMat33(mat33) {\n return mat33.equals(getIdentityMat33());\n}\n","import {isSimilar} from './matrix';\nimport {Vector3D} from './vector';\n\n/**\n * Immutable 2D point.\n */\nexport class Point2D {\n\n /**\n * X position.\n *\n * @type {number}\n */\n #x;\n\n /**\n * Y position.\n *\n * @type {number}\n */\n #y;\n\n /**\n * @param {number} x The X coordinate for the point.\n * @param {number} y The Y coordinate for the point.\n */\n constructor(x, y) {\n this.#x = x;\n this.#y = y;\n }\n\n /**\n * Get the X position of the point.\n *\n * @returns {number} The X position of the point.\n */\n getX() {\n return this.#x;\n }\n\n /**\n * Get the Y position of the point.\n *\n * @returns {number} The Y position of the point.\n */\n getY() {\n return this.#y;\n }\n\n /**\n * Check for Point2D equality.\n *\n * @param {Point2D} rhs The other point to compare to.\n * @returns {boolean} True if both points are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.#x === rhs.getX() &&\n this.#y === rhs.getY();\n }\n\n /**\n * Get a string representation of the Point2D.\n *\n * @returns {string} The point as a string.\n */\n toString() {\n return '(' + this.#x + ', ' + this.#y + ')';\n }\n\n /**\n * Get the distance to another Point2D.\n *\n * @param {Point2D} point2D The input point.\n * @returns {number} Ths distance to the input point.\n */\n getDistance(point2D) {\n const dx = this.#x - point2D.getX();\n const dy = this.#y - point2D.getY();\n return Math.sqrt(dx * dx + dy * dy);\n }\n\n} // Point2D class\n\n/**\n * Immutable 3D point.\n */\nexport class Point3D {\n\n /**\n * X position.\n *\n * @type {number}\n */\n #x;\n\n /**\n * Y position.\n *\n * @type {number}\n */\n #y;\n\n /**\n * Z position.\n *\n * @type {number}\n */\n #z;\n\n /**\n * @param {number} x The X coordinate for the point.\n * @param {number} y The Y coordinate for the point.\n * @param {number} z The Z coordinate for the point.\n */\n constructor(x, y, z) {\n this.#x = x;\n this.#y = y;\n this.#z = z;\n }\n\n /**\n * Get the X position of the point.\n *\n * @returns {number} The X position of the point.\n */\n getX() {\n return this.#x;\n }\n\n /**\n * Get the Y position of the point.\n *\n * @returns {number} The Y position of the point.\n */\n getY() {\n return this.#y;\n }\n\n /**\n * Get the Z position of the point.\n *\n * @returns {number} The Z position of the point.\n */\n getZ() {\n return this.#z;\n }\n\n\n /**\n * Check for Point3D equality.\n *\n * @param {Point3D} rhs The other point to compare to.\n * @returns {boolean} True if both points are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.#x === rhs.getX() &&\n this.#y === rhs.getY() &&\n this.#z === rhs.getZ();\n }\n\n /**\n * Check for Point3D similarity.\n *\n * @param {Point3D} rhs The other point to compare to.\n * @param {number} tol Optional comparison tolerance,\n * default to Number.EPSILON.\n * @returns {boolean} True if both points are equal.\n */\n isSimilar(rhs, tol) {\n return rhs !== null &&\n isSimilar(this.#x, rhs.getX(), tol) &&\n isSimilar(this.#y, rhs.getY(), tol) &&\n isSimilar(this.#z, rhs.getZ(), tol);\n }\n\n /**\n * Get a string representation of the Point3D.\n *\n * @returns {string} The point as a string.\n */\n toString() {\n return '(' + this.#x +\n ', ' + this.#y +\n ', ' + this.#z + ')';\n }\n\n /**\n * Get the distance to another Point3D.\n *\n * @param {Point3D} point3D The input point.\n * @returns {number} Ths distance to the input point.\n */\n getDistance(point3D) {\n return Math.sqrt(this.#getSquaredDistance(point3D));\n }\n\n /**\n * Get the square of the distance between this and\n * an input point. Used for sorting.\n *\n * @param {Point3D} point3D The input point.\n * @returns {number} The square of the distance.\n */\n #getSquaredDistance(point3D) {\n const dx = this.#x - point3D.getX();\n const dy = this.#y - point3D.getY();\n const dz = this.#z - point3D.getZ();\n return dx * dx + dy * dy + dz * dz;\n }\n\n /**\n * Get the closest point to this in a Point3D list.\n *\n * @param {Point3D[]} pointList The list to check.\n * @returns {number} The index of the closest point in the input list.\n */\n getClosest(pointList) {\n let minIndex = 0;\n // the order between squared distances and distances is the same\n let minDist = this.#getSquaredDistance(pointList[minIndex]);\n for (let i = 0; i < pointList.length; ++i) {\n const dist = this.#getSquaredDistance(pointList[i]);\n if (dist < minDist) {\n minIndex = i;\n minDist = dist;\n }\n }\n return minIndex;\n }\n\n /**\n * Get the difference to another Point3D.\n *\n * @param {Point3D} point3D The input point.\n * @returns {Vector3D} The 3D vector from the input point to this one.\n */\n minus(point3D) {\n return new Vector3D(\n (this.#x - point3D.getX()),\n (this.#y - point3D.getY()),\n (this.#z - point3D.getZ()));\n }\n\n} // Point3D class\n\n/**\n * Get an array find callback for an equal input point.\n *\n * @param {Point3D} point The point to compare to.\n * @returns {Function} A function that compares, using `equals`,\n * its input point to the one given as input to this function.\n */\nexport function getEqualPoint3DFunction(point) {\n return function (element) {\n return element.equals(point);\n };\n}\n\n/**\n * Immutable point.\n * Warning: the input array is NOT cloned, modifying it will\n * modify the index values.\n */\nexport class Point {\n\n /**\n * Point values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * @param {number[]} values The point values.\n */\n constructor(values) {\n if (!values || typeof values === 'undefined') {\n throw new Error('Cannot create point with no values.');\n }\n if (values.length === 0) {\n throw new Error('Cannot create point with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val);\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create point with non number values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the index value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number} The value.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the index.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the Index.\n *\n * @returns {string} The Index as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this index.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check if the input point can be compared to this one.\n *\n * @param {Point} rhs The point to compare to.\n * @returns {boolean} True if both points are comparable.\n */\n canCompare(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n if (this.length() !== rhs.length()) {\n return false;\n }\n // seems ok!\n return true;\n }\n\n /**\n * Check for Point equality.\n *\n * @param {Point} rhs The point to compare to.\n * @returns {boolean} True if both points are equal.\n */\n equals(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return false;\n }\n // check values\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Compare points and return different dimensions.\n *\n * @param {Point} rhs The point to compare to.\n * @returns {number[]} The list of different dimensions.\n */\n compare(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return null;\n }\n // check values\n const diffDims = [];\n for (let i = 0, leni = this.length(); i < leni; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n diffDims.push(i);\n }\n }\n return diffDims;\n }\n\n /**\n * Get the 3D part of this point.\n *\n * @returns {Point3D} The Point3D.\n */\n get3D() {\n return new Point3D(this.get(0), this.get(1), this.get(2));\n }\n\n /**\n * Add another point to this one.\n *\n * @param {Point} rhs The point to add.\n * @returns {Point} The point representing the sum of both points.\n */\n add(rhs) {\n // check if can compare\n if (!this.canCompare(rhs)) {\n return null;\n }\n const values = [];\n const values0 = this.getValues();\n const values1 = rhs.getValues();\n for (let i = 0; i < values0.length; ++i) {\n values.push(values0[i] + values1[i]);\n }\n return new Point(values);\n }\n\n /**\n * Merge this point with a Point3D to create a new point.\n *\n * @param {Point3D} rhs The Point3D to merge with.\n * @returns {Point} The merge result.\n */\n mergeWith3D(rhs) {\n const values = this.getValues();\n values[0] = rhs.getX();\n values[1] = rhs.getY();\n values[2] = rhs.getZ();\n return new Point(values);\n }\n\n} // Point class\n","/**\n * Capitalise the first letter of a string.\n *\n * @param {string} string The string to capitalise the first letter.\n * @returns {string} The new string.\n */\nexport function capitaliseFirstLetter(string) {\n let res = string;\n if (string) {\n res = string.charAt(0).toUpperCase() + string.slice(1);\n }\n return res;\n}\n\n/**\n * Check if a string starts with the input element.\n *\n * @param {string} str The input string.\n * @param {string} search The searched start.\n * @param {number} [rawPos] The position in this string at which to begin\n * searching for searchString. Defaults to 0.\n * @returns {boolean} True if the input string starts with the searched string.\n */\nexport function startsWith(str, search, rawPos) {\n if (typeof str === 'undefined' || str === null ||\n typeof search === 'undefined' || search === null) {\n return false;\n }\n const pos = rawPos > 0 ? rawPos | 0 : 0;\n return str.substring(pos, pos + search.length) === search;\n}\n\n/**\n * Check if a string ends with the input element.\n *\n * @param {string} str The input string.\n * @param {string} search The searched ending.\n * @returns {boolean} True if the input string ends with the searched string.\n */\nexport function endsWith(str, search) {\n if (typeof str === 'undefined' || str === null ||\n typeof search === 'undefined' || search === null) {\n return false;\n }\n return str.substring(str.length - search.length) === search;\n}\n\n/**\n * Split key/value string: `key0=val00&key0=val01&key1=val10\n * will return `{key0 : [val00, val01], key1 : val1}`.\n *\n * @param {string} inputStr The string to split.\n * @returns {object} The split string.\n */\nexport function splitKeyValueString(inputStr) {\n // result\n const result = {};\n // check input string\n if (inputStr) {\n // split key/value pairs\n const pairs = inputStr.split('&');\n for (let i = 0; i < pairs.length; ++i) {\n const pair = pairs[i].split('=');\n // if the key does not exist, create it\n if (!result[pair[0]]) {\n result[pair[0]] = pair[1];\n } else {\n // make it an array\n if (!(result[pair[0]] instanceof Array)) {\n result[pair[0]] = [result[pair[0]]];\n }\n result[pair[0]].push(pair[1]);\n }\n }\n }\n return result;\n}\n\n/**\n * Get flags from an input string. Flags are words surrounded with curly\n * braces.\n *\n * @param {string} inputStr The input string.\n * @returns {string[]} An array of found flags.\n */\nexport function getFlags(inputStr) {\n const flags = [];\n // check input string\n if (inputStr === null || typeof inputStr === 'undefined') {\n return flags;\n }\n\n // word surrounded by curly braces\n const regex = /{(\\w+)}/g;\n\n let match = regex.exec(inputStr);\n while (match) {\n flags.push(match[1]); // first matching group\n match = regex.exec(inputStr);\n }\n return flags;\n}\n\n/**\n * Replace flags in a input string. Flags are keywords surrounded with curly\n * braces.\n *\n * @param {string} inputStr The input string.\n * @param {object} values A object of {value, unit}.\n * @returns {string} The result string.\n */\nexport function replaceFlags(inputStr, values) {\n let res = '';\n // check input string\n if (inputStr === null || typeof inputStr === 'undefined') {\n return res;\n }\n res = inputStr;\n // check values\n if (values === null || typeof values === 'undefined') {\n return res;\n }\n\n // loop through flags\n const keys = getFlags(inputStr);\n for (let i = 0; i < keys.length; ++i) {\n const valueObj = values[keys[i]];\n if (valueObj !== null && typeof valueObj !== 'undefined' &&\n valueObj.value !== null && typeof valueObj.value !== 'undefined') {\n // value string\n let valueStr = valueObj.value.toPrecision(4);\n // add unit if available\n // space or no space? Yes apart from degree...\n // check: https://en.wikipedia.org/wiki/Space_(punctuation)#Spaces_and_unit_symbols\n if (valueObj.unit !== null &&\n typeof valueObj.unit !== 'undefined' &&\n valueObj.unit.length !== 0) {\n if (valueObj.unit !== 'degree') {\n valueStr += ' ';\n }\n valueStr += valueObj.unit;\n }\n // flag to replace\n const flag = '{' + keys[i] + '}';\n // replace\n res = res.replace(flag, valueStr);\n }\n }\n // return\n return res;\n}\n\n/**\n * Get the root of an input path.\n * Splits using `/` as separator.\n *\n * @param {string} path The input path.\n * @returns {string} The input path without its last part.\n */\nexport function getRootPath(path) {\n return path.split('/').slice(0, -1).join('/');\n}\n\n/**\n * Get a file extension: anything after the last dot.\n * File name starting with a dot are discarded.\n * Extensions are expected to contain at least one letter.\n *\n * @param {string} filePath The file path containing the file name.\n * @returns {string} The lower case file extension or null for none.\n */\nexport function getFileExtension(filePath) {\n let ext = null;\n if (typeof filePath !== 'undefined' &&\n filePath !== null &&\n filePath[0] !== '.') {\n const pathSplit = filePath.toLowerCase().split('.');\n if (pathSplit.length !== 1) {\n ext = pathSplit.pop();\n // extension should contain at least one letter and no slash\n const regExp = /[a-z]/;\n if (!regExp.test(ext) || ext.includes('/')) {\n ext = null;\n }\n }\n }\n return ext;\n}\n\n/**\n * Convert a string to a Uint8Array.\n *\n * @param {string} str The string to convert.\n * @returns {Uint8Array} The Uint8Array.\n */\nexport function stringToUint8Array(str) {\n const arr = new Uint8Array(str.length);\n for (let i = 0, leni = str.length; i < leni; i++) {\n arr[i] = str.charCodeAt(i);\n }\n return arr;\n}\n\n/**\n * Round a float number to a given precision.\n *\n * Inspired from {@link https://stackoverflow.com/a/49729715/3639892}.\n *\n * Can be a solution to not have trailing zero as when\n * using toFixed or toPrecision.\n * '+number.toFixed(precision)' does not pass all the tests...\n *\n * @param {number} number The number to round.\n * @param {number} precision The rounding precision.\n * @returns {number} The rounded number.\n */\nexport function precisionRound(number, precision) {\n const factor = Math.pow(10, precision);\n const delta = 0.01 / factor; // fixes precisionRound(1.005, 2)\n return Math.round(number * factor + delta) / factor;\n}\n","import {stringToUint8Array} from './string';\n\n/**\n * Check if the first input array contains all the\n * elements of the second input array.\n *\n * @param {string[]} arr0 The test array.\n * @param {string[]} arr1 The elements to check in the first array.\n * @returns {boolean} True if all the elements of arr1 are included in arr0.\n */\nexport function arrayContains(arr0, arr1) {\n // check input\n if (arr0 === null ||\n arr1 === null ||\n typeof arr0 === 'undefined' ||\n typeof arr1 === 'undefined') {\n return false;\n }\n if (arr0.length === 0 ||\n arr1.length === 0 ||\n arr1.length > arr0.length) {\n return false;\n }\n // check values\n for (const itemArr1 of arr1) {\n if (!arr0.includes(itemArr1)) {\n return false;\n }\n }\n return true;\n}\n\n/**\n * Check for array equality after sorting.\n *\n * @param {Array} arr0 First array.\n * @param {Array} arr1 Second array.\n * @returns {boolean} True if both array are defined and contain same values.\n */\nexport function arraySortEquals(arr0, arr1) {\n if (arr0 === null ||\n arr1 === null ||\n typeof arr0 === 'undefined' ||\n typeof arr1 === 'undefined') {\n return false;\n }\n const arr0sorted = arr0.slice().sort();\n const arr1sorted = arr1.slice().sort();\n return arrayEquals(arr0sorted, arr1sorted);\n}\n\n/**\n * Check for array equality.\n *\n * @param {Array} arr0 First array.\n * @param {Array} arr1 Second array.\n * @returns {boolean} True if both array are defined and contain same values.\n */\nexport function arrayEquals(arr0, arr1) {\n if (arr0 === null ||\n arr1 === null ||\n typeof arr0 === 'undefined' ||\n typeof arr1 === 'undefined') {\n return false;\n }\n if (arr0.length !== arr1.length) {\n return false;\n }\n return arr0.every(function (element, index) {\n return element === arr1[index];\n });\n}\n\n/**\n * Convert a Uint8Array to a string.\n *\n * @param {Uint8Array} arr The array to convert.\n * @returns {string} The array as string.\n */\nexport function uint8ArrayToString(arr) {\n return String.fromCharCode.apply(String, arr);\n}\n\n/**\n * Array find in a subset of the input array.\n * Equivalent to: `arr.slice(start, end).find(callbackFn)`.\n *\n * @param {Uint8Array} arr The input array to search.\n * @param {Function} callbackFn The find function.\n * @param {number|undefined} start The array start index.\n * @param {number|undefined} [end] The array end index.\n * @returns {number|undefined} The index where the element was found.\n */\nexport function findInArraySubset(arr, callbackFn, start, end) {\n // check inputs\n if (typeof start === 'undefined' ||\n start < 0 ||\n start >= arr.length\n ) {\n start = 0;\n }\n if (typeof end === 'undefined' ||\n end <= start ||\n end > arr.length) {\n end = arr.length;\n }\n // run\n for (let i = start; i < end; ++i) {\n if (callbackFn(arr[i], i, arr)) {\n return i;\n }\n }\n return undefined;\n}\n\n/**\n * Get a find in array callback.\n *\n * @param {Uint8Array} arr1 The array to find.\n * @returns {Function} The find callback function.\n */\nexport function getFindArrayInArrayCallback(arr1) {\n return function (element, index, arr0) {\n for (let i = 0; i < arr1.length; ++i) {\n if (arr0[index + i] !== arr1[i]) {\n return false;\n }\n }\n return true;\n };\n}\n\n/**\n * Extract each element of a multipart ArrayBuffer.\n *\n * Ref: {@link https://en.wikipedia.org/wiki/MIME#Multipart_messages}.\n *\n * @param {ArrayBuffer} arr The multipart array.\n * @returns {Array} The multipart parts as an array of object as\n * {'Content-Type', ..., data} (depending on header tags).\n */\nexport function parseMultipart(arr) {\n const u8Array = new Uint8Array(arr);\n\n const parts = [];\n // check input\n if (u8Array.length === 0) {\n return parts;\n }\n\n // \\r\\n\\r\\n\n const doubleReturnNew = new Uint8Array([0x0d, 0x0a, 0x0d, 0x0a]);\n const partHeaderEndCb = getFindArrayInArrayCallback(doubleReturnNew);\n\n // look for boundary in first part header\n let partHeaderEndIndex = findInArraySubset(\n u8Array, partHeaderEndCb, 0\n );\n if (typeof partHeaderEndIndex === 'undefined') {\n throw new Error('Can\\'t find the end of the first multipart header');\n }\n const firstPartHeader = u8Array.slice(0, partHeaderEndIndex);\n // switch to string to use split\n const lines = uint8ArrayToString(firstPartHeader).split('\\r\\n');\n // boundary should start with '--'\n let boundaryStr;\n for (let i = 0; i < lines.length; ++i) {\n if (lines[i][0] === '-' && lines[i][1] === '-') {\n boundaryStr = lines[i];\n break;\n }\n }\n if (typeof boundaryStr === 'undefined') {\n throw new Error('Can\\'t find the boundary between multi-parts');\n }\n const boundary = stringToUint8Array(boundaryStr);\n const boundaryCb = getFindArrayInArrayCallback(boundary);\n const boundaryLen = boundaryStr.length;\n\n // skip mime header\n let nextBoundaryIndex = findInArraySubset(\n u8Array, boundaryCb, 0\n );\n\n // loop through content\n while (typeof partHeaderEndIndex !== 'undefined') {\n const part = {};\n\n // header\n const partHeader = u8Array.slice(\n nextBoundaryIndex + boundaryLen, partHeaderEndIndex);\n // split into object\n const partHeaderLines =\n uint8ArrayToString(partHeader).split('\\r\\n');\n for (let l = 0; l < partHeaderLines.length; ++l) {\n const line = partHeaderLines[l];\n const semiColonIndex = line.indexOf(':');\n if (semiColonIndex !== -1) {\n const key = line.substring(0, semiColonIndex).trim();\n const val = line.substring(semiColonIndex + 1).trim();\n part[key] = val;\n }\n }\n\n // find next boundary\n nextBoundaryIndex = findInArraySubset(\n u8Array, boundaryCb, partHeaderEndIndex\n );\n // exit if none\n if (typeof nextBoundaryIndex === 'undefined') {\n break;\n }\n\n // get part\n // partHeaderEndIndex plus the size of the '\\r\\n\\r\\n' separator\n const dataBeginIndex = partHeaderEndIndex + 4;\n // nextBoundaryIndex minus the previous '\\r\\n'\n const dataEndIndex = nextBoundaryIndex - 2;\n if (dataBeginIndex < dataEndIndex) {\n part.data = u8Array.slice(dataBeginIndex, dataEndIndex).buffer;\n } else {\n part.data = new Uint8Array();\n }\n\n // store part\n parts.push(part);\n\n // find next part header end\n partHeaderEndIndex = findInArraySubset(\n u8Array, partHeaderEndCb,\n nextBoundaryIndex + boundaryLen\n );\n }\n\n return parts;\n}\n\n/**\n * Build a multipart message.\n *\n * Ref:\n * - {@link https://en.wikipedia.org/wiki/MIME#Multipart_messages},\n * - {@link https://hg.orthanc-server.com/orthanc-dicomweb/file/tip/Resources/Samples/JavaScript/stow-rs.js}.\n *\n * @param {Array} parts The message parts as an array of object containing\n * content headers and messages as the data property (as returned by parse).\n * @param {string} boundary The message boundary.\n * @returns {Uint8Array} The full multipart message.\n */\nexport function buildMultipart(parts, boundary) {\n const lineBreak = '\\r\\n';\n // build headers and calculate size\n let partsSize = 0;\n const headers = [];\n for (let i = 0; i < parts.length; ++i) {\n let headerStr = '';\n if (i !== 0) {\n headerStr += lineBreak;\n }\n headerStr += '--' + boundary + lineBreak;\n const partKeys = Object.keys(parts[i]);\n for (let k = 0; k < partKeys.length; ++k) {\n const key = partKeys[k];\n if (key !== 'data') {\n headerStr += key + ': ' + parts[i][key] + lineBreak;\n }\n }\n headerStr += lineBreak;\n const header = stringToUint8Array(headerStr);\n headers.push(header);\n partsSize += header.byteLength + parts[i].data.byteLength;\n }\n // build trailer\n const trailerStr = lineBreak + '--' + boundary + '--' + lineBreak;\n const trailer = stringToUint8Array(trailerStr);\n\n // final buffer\n const buffer = new Uint8Array(partsSize + trailer.byteLength);\n let offset = 0;\n // concatenate parts\n for (let j = 0; j < parts.length; ++j) {\n buffer.set(headers[j], offset);\n offset += headers[j].byteLength;\n buffer.set(new Uint8Array(parts[j].data), offset);\n offset += parts[j].data.byteLength;\n }\n // end buffer with trailer\n buffer.set(trailer, offset);\n\n // return\n return buffer;\n}\n","/* eslint-disable @stylistic/js/quote-props */\n/* eslint @stylistic/js/max-len:0 */\n\n/**\n * DICOM tag dictionary 2022a.\n * Generated using xml standard conversion from {@link https://github.com/ivmartel/dcmStdToJs} v0.1.0.\n *\n * Conversion changes:\n * - (vr) 'See Note' -> 'NONE',\n * - (vr) 'OB or OW' -> 'ox',\n * - (vr) 'US or SS' -> 'xs',\n * - (vr) 'US or OW' -> 'xx',\n * - (vr) 'US or SS or OW' -> 'xs',\n * - added 'GenericGroupLength' element to each group.\n *\n * Local changes:\n * - tag numbers with 'xx' were replaced with '00', 'xxx' with '001' and\n * 'xxxx' with '0004'.\n *\n * @type {Object>}\n */\nexport const dictionary = {\n '0000': {\n '0000': ['UL', '1', 'CommandGroupLength'],\n '0001': ['UL', '1', 'CommandLengthToEnd'],\n '0002': ['UI', '1', 'AffectedSOPClassUID'],\n '0003': ['UI', '1', 'RequestedSOPClassUID'],\n '0010': ['SH', '1', 'CommandRecognitionCode'],\n '0100': ['US', '1', 'CommandField'],\n '0110': ['US', '1', 'MessageID'],\n '0120': ['US', '1', 'MessageIDBeingRespondedTo'],\n '0200': ['AE', '1', 'Initiator'],\n '0300': ['AE', '1', 'Receiver'],\n '0400': ['AE', '1', 'FindLocation'],\n '0600': ['AE', '1', 'MoveDestination'],\n '0700': ['US', '1', 'Priority'],\n '0800': ['US', '1', 'CommandDataSetType'],\n '0850': ['US', '1', 'NumberOfMatches'],\n '0860': ['US', '1', 'ResponseSequenceNumber'],\n '0900': ['US', '1', 'Status'],\n '0901': ['AT', '1-n', 'OffendingElement'],\n '0902': ['LO', '1', 'ErrorComment'],\n '0903': ['US', '1', 'ErrorID'],\n '1000': ['UI', '1', 'AffectedSOPInstanceUID'],\n '1001': ['UI', '1', 'RequestedSOPInstanceUID'],\n '1002': ['US', '1', 'EventTypeID'],\n '1005': ['AT', '1-n', 'AttributeIdentifierList'],\n '1008': ['US', '1', 'ActionTypeID'],\n '1020': ['US', '1', 'NumberOfRemainingSuboperations'],\n '1021': ['US', '1', 'NumberOfCompletedSuboperations'],\n '1022': ['US', '1', 'NumberOfFailedSuboperations'],\n '1023': ['US', '1', 'NumberOfWarningSuboperations'],\n '1030': ['AE', '1', 'MoveOriginatorApplicationEntityTitle'],\n '1031': ['US', '1', 'MoveOriginatorMessageID'],\n '4000': ['LT', '1', 'DialogReceiver'],\n '4010': ['LT', '1', 'TerminalType'],\n '5010': ['SH', '1', 'MessageSetID'],\n '5020': ['SH', '1', 'EndMessageID'],\n '5110': ['LT', '1', 'DisplayFormat'],\n '5120': ['LT', '1', 'PagePositionID'],\n '5130': ['CS', '1', 'TextFormatID'],\n '5140': ['CS', '1', 'NormalReverse'],\n '5150': ['CS', '1', 'AddGrayScale'],\n '5160': ['CS', '1', 'Borders'],\n '5170': ['IS', '1', 'Copies'],\n '5180': ['CS', '1', 'CommandMagnificationType'],\n '5190': ['CS', '1', 'Erase'],\n '51A0': ['CS', '1', 'Print'],\n '51B0': ['US', '1-n', 'Overlays']\n },\n '0002': {\n '0000': ['UL', '1', 'FileMetaInformationGroupLength'],\n '0001': ['OB', '1', 'FileMetaInformationVersion'],\n '0002': ['UI', '1', 'MediaStorageSOPClassUID'],\n '0003': ['UI', '1', 'MediaStorageSOPInstanceUID'],\n '0010': ['UI', '1', 'TransferSyntaxUID'],\n '0012': ['UI', '1', 'ImplementationClassUID'],\n '0013': ['SH', '1', 'ImplementationVersionName'],\n '0016': ['AE', '1', 'SourceApplicationEntityTitle'],\n '0017': ['AE', '1', 'SendingApplicationEntityTitle'],\n '0018': ['AE', '1', 'ReceivingApplicationEntityTitle'],\n '0026': ['UR', '1', 'SourcePresentationAddress'],\n '0027': ['UR', '1', 'SendingPresentationAddress'],\n '0028': ['UR', '1', 'ReceivingPresentationAddress'],\n '0031': ['OB', '1', 'RTVMetaInformationVersion'],\n '0032': ['UI', '1', 'RTVCommunicationSOPClassUID'],\n '0033': ['UI', '1', 'RTVCommunicationSOPInstanceUID'],\n '0035': ['OB', '1', 'RTVSourceIdentifier'],\n '0036': ['OB', '1', 'RTVFlowIdentifier'],\n '0037': ['UL', '1', 'RTVFlowRTPSamplingRate'],\n '0038': ['FD', '1', 'RTVFlowActualFrameDuration'],\n '0100': ['UI', '1', 'PrivateInformationCreatorUID'],\n '0102': ['OB', '1', 'PrivateInformation']\n },\n '0004': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '1130': ['CS', '1', 'FileSetID'],\n '1141': ['CS', '1-8', 'FileSetDescriptorFileID'],\n '1142': ['CS', '1', 'SpecificCharacterSetOfFileSetDescriptorFile'],\n '1200': ['UL', '1', 'OffsetOfTheFirstDirectoryRecordOfTheRootDirectoryEntity'],\n '1202': ['UL', '1', 'OffsetOfTheLastDirectoryRecordOfTheRootDirectoryEntity'],\n '1212': ['US', '1', 'FileSetConsistencyFlag'],\n '1220': ['SQ', '1', 'DirectoryRecordSequence'],\n '1400': ['UL', '1', 'OffsetOfTheNextDirectoryRecord'],\n '1410': ['US', '1', 'RecordInUseFlag'],\n '1420': ['UL', '1', 'OffsetOfReferencedLowerLevelDirectoryEntity'],\n '1430': ['CS', '1', 'DirectoryRecordType'],\n '1432': ['UI', '1', 'PrivateRecordUID'],\n '1500': ['CS', '1-8', 'ReferencedFileID'],\n '1504': ['UL', '1', 'MRDRDirectoryRecordOffset'],\n '1510': ['UI', '1', 'ReferencedSOPClassUIDInFile'],\n '1511': ['UI', '1', 'ReferencedSOPInstanceUIDInFile'],\n '1512': ['UI', '1', 'ReferencedTransferSyntaxUIDInFile'],\n '151A': ['UI', '1-n', 'ReferencedRelatedGeneralSOPClassUIDInFile'],\n '1600': ['UL', '1', 'NumberOfReferences']\n },\n '0008': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['UL', '1', 'LengthToEnd'],\n '0005': ['CS', '1-n', 'SpecificCharacterSet'],\n '0006': ['SQ', '1', 'LanguageCodeSequence'],\n '0008': ['CS', '2-n', 'ImageType'],\n '0010': ['SH', '1', 'RecognitionCode'],\n '0012': ['DA', '1', 'InstanceCreationDate'],\n '0013': ['TM', '1', 'InstanceCreationTime'],\n '0014': ['UI', '1', 'InstanceCreatorUID'],\n '0015': ['DT', '1', 'InstanceCoercionDateTime'],\n '0016': ['UI', '1', 'SOPClassUID'],\n '0018': ['UI', '1', 'SOPInstanceUID'],\n '001A': ['UI', '1-n', 'RelatedGeneralSOPClassUID'],\n '001B': ['UI', '1', 'OriginalSpecializedSOPClassUID'],\n '0020': ['DA', '1', 'StudyDate'],\n '0021': ['DA', '1', 'SeriesDate'],\n '0022': ['DA', '1', 'AcquisitionDate'],\n '0023': ['DA', '1', 'ContentDate'],\n '0024': ['DA', '1', 'OverlayDate'],\n '0025': ['DA', '1', 'CurveDate'],\n '002A': ['DT', '1', 'AcquisitionDateTime'],\n '0030': ['TM', '1', 'StudyTime'],\n '0031': ['TM', '1', 'SeriesTime'],\n '0032': ['TM', '1', 'AcquisitionTime'],\n '0033': ['TM', '1', 'ContentTime'],\n '0034': ['TM', '1', 'OverlayTime'],\n '0035': ['TM', '1', 'CurveTime'],\n '0040': ['US', '1', 'DataSetType'],\n '0041': ['LO', '1', 'DataSetSubtype'],\n '0042': ['CS', '1', 'NuclearMedicineSeriesType'],\n '0050': ['SH', '1', 'AccessionNumber'],\n '0051': ['SQ', '1', 'IssuerOfAccessionNumberSequence'],\n '0052': ['CS', '1', 'QueryRetrieveLevel'],\n '0053': ['CS', '1', 'QueryRetrieveView'],\n '0054': ['AE', '1-n', 'RetrieveAETitle'],\n '0055': ['AE', '1', 'StationAETitle'],\n '0056': ['CS', '1', 'InstanceAvailability'],\n '0058': ['UI', '1-n', 'FailedSOPInstanceUIDList'],\n '0060': ['CS', '1', 'Modality'],\n '0061': ['CS', '1-n', 'ModalitiesInStudy'],\n '0062': ['UI', '1-n', 'SOPClassesInStudy'],\n '0063': ['SQ', '1', 'AnatomicRegionsInStudyCodeSequence'],\n '0064': ['CS', '1', 'ConversionType'],\n '0068': ['CS', '1', 'PresentationIntentType'],\n '0070': ['LO', '1', 'Manufacturer'],\n '0080': ['LO', '1', 'InstitutionName'],\n '0081': ['ST', '1', 'InstitutionAddress'],\n '0082': ['SQ', '1', 'InstitutionCodeSequence'],\n '0090': ['PN', '1', 'ReferringPhysicianName'],\n '0092': ['ST', '1', 'ReferringPhysicianAddress'],\n '0094': ['SH', '1-n', 'ReferringPhysicianTelephoneNumbers'],\n '0096': ['SQ', '1', 'ReferringPhysicianIdentificationSequence'],\n '009C': ['PN', '1-n', 'ConsultingPhysicianName'],\n '009D': ['SQ', '1', 'ConsultingPhysicianIdentificationSequence'],\n '0100': ['SH', '1', 'CodeValue'],\n '0101': ['LO', '1', 'ExtendedCodeValue'],\n '0102': ['SH', '1', 'CodingSchemeDesignator'],\n '0103': ['SH', '1', 'CodingSchemeVersion'],\n '0104': ['LO', '1', 'CodeMeaning'],\n '0105': ['CS', '1', 'MappingResource'],\n '0106': ['DT', '1', 'ContextGroupVersion'],\n '0107': ['DT', '1', 'ContextGroupLocalVersion'],\n '0108': ['LT', '1', 'ExtendedCodeMeaning'],\n '0109': ['SQ', '1', 'CodingSchemeResourcesSequence'],\n '010A': ['CS', '1', 'CodingSchemeURLType'],\n '010B': ['CS', '1', 'ContextGroupExtensionFlag'],\n '010C': ['UI', '1', 'CodingSchemeUID'],\n '010D': ['UI', '1', 'ContextGroupExtensionCreatorUID'],\n '010E': ['UR', '1', 'CodingSchemeURL'],\n '010F': ['CS', '1', 'ContextIdentifier'],\n '0110': ['SQ', '1', 'CodingSchemeIdentificationSequence'],\n '0112': ['LO', '1', 'CodingSchemeRegistry'],\n '0114': ['ST', '1', 'CodingSchemeExternalID'],\n '0115': ['ST', '1', 'CodingSchemeName'],\n '0116': ['ST', '1', 'CodingSchemeResponsibleOrganization'],\n '0117': ['UI', '1', 'ContextUID'],\n '0118': ['UI', '1', 'MappingResourceUID'],\n '0119': ['UC', '1', 'LongCodeValue'],\n '0120': ['UR', '1', 'URNCodeValue'],\n '0121': ['SQ', '1', 'EquivalentCodeSequence'],\n '0122': ['LO', '1', 'MappingResourceName'],\n '0123': ['SQ', '1', 'ContextGroupIdentificationSequence'],\n '0124': ['SQ', '1', 'MappingResourceIdentificationSequence'],\n '0201': ['SH', '1', 'TimezoneOffsetFromUTC'],\n '0202': ['', '', ''],\n '0220': ['SQ', '1', 'ResponsibleGroupCodeSequence'],\n '0221': ['CS', '1', 'EquipmentModality'],\n '0222': ['LO', '1', 'ManufacturerRelatedModelGroup'],\n '0300': ['SQ', '1', 'PrivateDataElementCharacteristicsSequence'],\n '0301': ['US', '1', 'PrivateGroupReference'],\n '0302': ['LO', '1', 'PrivateCreatorReference'],\n '0303': ['CS', '1', 'BlockIdentifyingInformationStatus'],\n '0304': ['US', '1-n', 'NonidentifyingPrivateElements'],\n '0305': ['SQ', '1', 'DeidentificationActionSequence'],\n '0306': ['US', '1-n', 'IdentifyingPrivateElements'],\n '0307': ['CS', '1', 'DeidentificationAction'],\n '0308': ['US', '1', 'PrivateDataElement'],\n '0309': ['UL', '1-3', 'PrivateDataElementValueMultiplicity'],\n '030A': ['CS', '1', 'PrivateDataElementValueRepresentation'],\n '030B': ['UL', '1-2', 'PrivateDataElementNumberOfItems'],\n '030C': ['UC', '1', 'PrivateDataElementName'],\n '030D': ['UC', '1', 'PrivateDataElementKeyword'],\n '030E': ['UT', '1', 'PrivateDataElementDescription'],\n '030F': ['UT', '1', 'PrivateDataElementEncoding'],\n '0310': ['SQ', '1', 'PrivateDataElementDefinitionSequence'],\n '1000': ['AE', '1', 'NetworkID'],\n '1010': ['SH', '1', 'StationName'],\n '1030': ['LO', '1', 'StudyDescription'],\n '1032': ['SQ', '1', 'ProcedureCodeSequence'],\n '103E': ['LO', '1', 'SeriesDescription'],\n '103F': ['SQ', '1', 'SeriesDescriptionCodeSequence'],\n '1040': ['LO', '1', 'InstitutionalDepartmentName'],\n '1041': ['SQ', '1', 'InstitutionalDepartmentTypeCodeSequence'],\n '1048': ['PN', '1-n', 'PhysiciansOfRecord'],\n '1049': ['SQ', '1', 'PhysiciansOfRecordIdentificationSequence'],\n '1050': ['PN', '1-n', 'PerformingPhysicianName'],\n '1052': ['SQ', '1', 'PerformingPhysicianIdentificationSequence'],\n '1060': ['PN', '1-n', 'NameOfPhysiciansReadingStudy'],\n '1062': ['SQ', '1', 'PhysiciansReadingStudyIdentificationSequence'],\n '1070': ['PN', '1-n', 'OperatorsName'],\n '1072': ['SQ', '1', 'OperatorIdentificationSequence'],\n '1080': ['LO', '1-n', 'AdmittingDiagnosesDescription'],\n '1084': ['SQ', '1', 'AdmittingDiagnosesCodeSequence'],\n '1090': ['LO', '1', 'ManufacturerModelName'],\n '1100': ['SQ', '1', 'ReferencedResultsSequence'],\n '1110': ['SQ', '1', 'ReferencedStudySequence'],\n '1111': ['SQ', '1', 'ReferencedPerformedProcedureStepSequence'],\n '1115': ['SQ', '1', 'ReferencedSeriesSequence'],\n '1120': ['SQ', '1', 'ReferencedPatientSequence'],\n '1125': ['SQ', '1', 'ReferencedVisitSequence'],\n '1130': ['SQ', '1', 'ReferencedOverlaySequence'],\n '1134': ['SQ', '1', 'ReferencedStereometricInstanceSequence'],\n '113A': ['SQ', '1', 'ReferencedWaveformSequence'],\n '1140': ['SQ', '1', 'ReferencedImageSequence'],\n '1145': ['SQ', '1', 'ReferencedCurveSequence'],\n '114A': ['SQ', '1', 'ReferencedInstanceSequence'],\n '114B': ['SQ', '1', 'ReferencedRealWorldValueMappingInstanceSequence'],\n '1150': ['UI', '1', 'ReferencedSOPClassUID'],\n '1155': ['UI', '1', 'ReferencedSOPInstanceUID'],\n '1156': ['SQ', '1', 'DefinitionSourceSequence'],\n '115A': ['UI', '1-n', 'SOPClassesSupported'],\n '1160': ['IS', '1-n', 'ReferencedFrameNumber'],\n '1161': ['UL', '1-n', 'SimpleFrameList'],\n '1162': ['UL', '3-3n', 'CalculatedFrameList'],\n '1163': ['FD', '2', 'TimeRange'],\n '1164': ['SQ', '1', 'FrameExtractionSequence'],\n '1167': ['UI', '1', 'MultiFrameSourceSOPInstanceUID'],\n '1190': ['UR', '1', 'RetrieveURL'],\n '1195': ['UI', '1', 'TransactionUID'],\n '1196': ['US', '1', 'WarningReason'],\n '1197': ['US', '1', 'FailureReason'],\n '1198': ['SQ', '1', 'FailedSOPSequence'],\n '1199': ['SQ', '1', 'ReferencedSOPSequence'],\n '119A': ['SQ', '1', 'OtherFailuresSequence'],\n '1200': ['SQ', '1', 'StudiesContainingOtherReferencedInstancesSequence'],\n '1250': ['SQ', '1', 'RelatedSeriesSequence'],\n '2110': ['CS', '1', 'LossyImageCompressionRetired'],\n '2111': ['ST', '1', 'DerivationDescription'],\n '2112': ['SQ', '1', 'SourceImageSequence'],\n '2120': ['SH', '1', 'StageName'],\n '2122': ['IS', '1', 'StageNumber'],\n '2124': ['IS', '1', 'NumberOfStages'],\n '2127': ['SH', '1', 'ViewName'],\n '2128': ['IS', '1', 'ViewNumber'],\n '2129': ['IS', '1', 'NumberOfEventTimers'],\n '212A': ['IS', '1', 'NumberOfViewsInStage'],\n '2130': ['DS', '1-n', 'EventElapsedTimes'],\n '2132': ['LO', '1-n', 'EventTimerNames'],\n '2133': ['SQ', '1', 'EventTimerSequence'],\n '2134': ['FD', '1', 'EventTimeOffset'],\n '2135': ['SQ', '1', 'EventCodeSequence'],\n '2142': ['IS', '1', 'StartTrim'],\n '2143': ['IS', '1', 'StopTrim'],\n '2144': ['IS', '1', 'RecommendedDisplayFrameRate'],\n '2200': ['CS', '1', 'TransducerPosition'],\n '2204': ['CS', '1', 'TransducerOrientation'],\n '2208': ['CS', '1', 'AnatomicStructure'],\n '2218': ['SQ', '1', 'AnatomicRegionSequence'],\n '2220': ['SQ', '1', 'AnatomicRegionModifierSequence'],\n '2228': ['SQ', '1', 'PrimaryAnatomicStructureSequence'],\n '2229': ['SQ', '1', 'AnatomicStructureSpaceOrRegionSequence'],\n '2230': ['SQ', '1', 'PrimaryAnatomicStructureModifierSequence'],\n '2240': ['SQ', '1', 'TransducerPositionSequence'],\n '2242': ['SQ', '1', 'TransducerPositionModifierSequence'],\n '2244': ['SQ', '1', 'TransducerOrientationSequence'],\n '2246': ['SQ', '1', 'TransducerOrientationModifierSequence'],\n '2251': ['SQ', '1', 'AnatomicStructureSpaceOrRegionCodeSequenceTrial'],\n '2253': ['SQ', '1', 'AnatomicPortalOfEntranceCodeSequenceTrial'],\n '2255': ['SQ', '1', 'AnatomicApproachDirectionCodeSequenceTrial'],\n '2256': ['ST', '1', 'AnatomicPerspectiveDescriptionTrial'],\n '2257': ['SQ', '1', 'AnatomicPerspectiveCodeSequenceTrial'],\n '2258': ['ST', '1', 'AnatomicLocationOfExaminingInstrumentDescriptionTrial'],\n '2259': ['SQ', '1', 'AnatomicLocationOfExaminingInstrumentCodeSequenceTrial'],\n '225A': ['SQ', '1', 'AnatomicStructureSpaceOrRegionModifierCodeSequenceTrial'],\n '225C': ['SQ', '1', 'OnAxisBackgroundAnatomicStructureCodeSequenceTrial'],\n '3001': ['SQ', '1', 'AlternateRepresentationSequence'],\n '3002': ['UI', '1-n', 'AvailableTransferSyntaxUID'],\n '3010': ['UI', '1-n', 'IrradiationEventUID'],\n '3011': ['SQ', '1', 'SourceIrradiationEventSequence'],\n '3012': ['UI', '1', 'RadiopharmaceuticalAdministrationEventUID'],\n '4000': ['LT', '1', 'IdentifyingComments'],\n '9007': ['CS', '4', 'FrameType'],\n '9092': ['SQ', '1', 'ReferencedImageEvidenceSequence'],\n '9121': ['SQ', '1', 'ReferencedRawDataSequence'],\n '9123': ['UI', '1', 'CreatorVersionUID'],\n '9124': ['SQ', '1', 'DerivationImageSequence'],\n '9154': ['SQ', '1', 'SourceImageEvidenceSequence'],\n '9205': ['CS', '1', 'PixelPresentation'],\n '9206': ['CS', '1', 'VolumetricProperties'],\n '9207': ['CS', '1', 'VolumeBasedCalculationTechnique'],\n '9208': ['CS', '1', 'ComplexImageComponent'],\n '9209': ['CS', '1', 'AcquisitionContrast'],\n '9215': ['SQ', '1', 'DerivationCodeSequence'],\n '9237': ['SQ', '1', 'ReferencedPresentationStateSequence'],\n '9410': ['SQ', '1', 'ReferencedOtherPlaneSequence'],\n '9458': ['SQ', '1', 'FrameDisplaySequence'],\n '9459': ['FL', '1', 'RecommendedDisplayFrameRateInFloat'],\n '9460': ['CS', '1', 'SkipFrameRangeFlag']\n },\n '0010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['PN', '1', 'PatientName'],\n '0020': ['LO', '1', 'PatientID'],\n '0021': ['LO', '1', 'IssuerOfPatientID'],\n '0022': ['CS', '1', 'TypeOfPatientID'],\n '0024': ['SQ', '1', 'IssuerOfPatientIDQualifiersSequence'],\n '0026': ['SQ', '1', 'SourcePatientGroupIdentificationSequence'],\n '0027': ['SQ', '1', 'GroupOfPatientsIdentificationSequence'],\n '0028': ['US', '3', 'SubjectRelativePositionInImage'],\n '0030': ['DA', '1', 'PatientBirthDate'],\n '0032': ['TM', '1', 'PatientBirthTime'],\n '0033': ['LO', '1', 'PatientBirthDateInAlternativeCalendar'],\n '0034': ['LO', '1', 'PatientDeathDateInAlternativeCalendar'],\n '0035': ['CS', '1', 'PatientAlternativeCalendar'],\n '0040': ['CS', '1', 'PatientSex'],\n '0050': ['SQ', '1', 'PatientInsurancePlanCodeSequence'],\n '0101': ['SQ', '1', 'PatientPrimaryLanguageCodeSequence'],\n '0102': ['SQ', '1', 'PatientPrimaryLanguageModifierCodeSequence'],\n '0200': ['CS', '1', 'QualityControlSubject'],\n '0201': ['SQ', '1', 'QualityControlSubjectTypeCodeSequence'],\n '0212': ['UC', '1', 'StrainDescription'],\n '0213': ['LO', '1', 'StrainNomenclature'],\n '0214': ['LO', '1', 'StrainStockNumber'],\n '0215': ['SQ', '1', 'StrainSourceRegistryCodeSequence'],\n '0216': ['SQ', '1', 'StrainStockSequence'],\n '0217': ['LO', '1', 'StrainSource'],\n '0218': ['UT', '1', 'StrainAdditionalInformation'],\n '0219': ['SQ', '1', 'StrainCodeSequence'],\n '0221': ['SQ', '1', 'GeneticModificationsSequence'],\n '0222': ['UC', '1', 'GeneticModificationsDescription'],\n '0223': ['LO', '1', 'GeneticModificationsNomenclature'],\n '0229': ['SQ', '1', 'GeneticModificationsCodeSequence'],\n '1000': ['LO', '1-n', 'OtherPatientIDs'],\n '1001': ['PN', '1-n', 'OtherPatientNames'],\n '1002': ['SQ', '1', 'OtherPatientIDsSequence'],\n '1005': ['PN', '1', 'PatientBirthName'],\n '1010': ['AS', '1', 'PatientAge'],\n '1020': ['DS', '1', 'PatientSize'],\n '1021': ['SQ', '1', 'PatientSizeCodeSequence'],\n '1022': ['DS', '1', 'PatientBodyMassIndex'],\n '1023': ['DS', '1', 'MeasuredAPDimension'],\n '1024': ['DS', '1', 'MeasuredLateralDimension'],\n '1030': ['DS', '1', 'PatientWeight'],\n '1040': ['LO', '1', 'PatientAddress'],\n '1050': ['LO', '1-n', 'InsurancePlanIdentification'],\n '1060': ['PN', '1', 'PatientMotherBirthName'],\n '1080': ['LO', '1', 'MilitaryRank'],\n '1081': ['LO', '1', 'BranchOfService'],\n '1090': ['LO', '1', 'MedicalRecordLocator'],\n '1100': ['SQ', '1', 'ReferencedPatientPhotoSequence'],\n '2000': ['LO', '1-n', 'MedicalAlerts'],\n '2110': ['LO', '1-n', 'Allergies'],\n '2150': ['LO', '1', 'CountryOfResidence'],\n '2152': ['LO', '1', 'RegionOfResidence'],\n '2154': ['SH', '1-n', 'PatientTelephoneNumbers'],\n '2155': ['LT', '1', 'PatientTelecomInformation'],\n '2160': ['SH', '1', 'EthnicGroup'],\n '2180': ['SH', '1', 'Occupation'],\n '21A0': ['CS', '1', 'SmokingStatus'],\n '21B0': ['LT', '1', 'AdditionalPatientHistory'],\n '21C0': ['US', '1', 'PregnancyStatus'],\n '21D0': ['DA', '1', 'LastMenstrualDate'],\n '21F0': ['LO', '1', 'PatientReligiousPreference'],\n '2201': ['LO', '1', 'PatientSpeciesDescription'],\n '2202': ['SQ', '1', 'PatientSpeciesCodeSequence'],\n '2203': ['CS', '1', 'PatientSexNeutered'],\n '2210': ['CS', '1', 'AnatomicalOrientationType'],\n '2292': ['LO', '1', 'PatientBreedDescription'],\n '2293': ['SQ', '1', 'PatientBreedCodeSequence'],\n '2294': ['SQ', '1', 'BreedRegistrationSequence'],\n '2295': ['LO', '1', 'BreedRegistrationNumber'],\n '2296': ['SQ', '1', 'BreedRegistryCodeSequence'],\n '2297': ['PN', '1', 'ResponsiblePerson'],\n '2298': ['CS', '1', 'ResponsiblePersonRole'],\n '2299': ['LO', '1', 'ResponsibleOrganization'],\n '4000': ['LT', '1', 'PatientComments'],\n '9431': ['FL', '1', 'ExaminedBodyThickness']\n },\n '0012': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['LO', '1', 'ClinicalTrialSponsorName'],\n '0020': ['LO', '1', 'ClinicalTrialProtocolID'],\n '0021': ['LO', '1', 'ClinicalTrialProtocolName'],\n '0030': ['LO', '1', 'ClinicalTrialSiteID'],\n '0031': ['LO', '1', 'ClinicalTrialSiteName'],\n '0040': ['LO', '1', 'ClinicalTrialSubjectID'],\n '0042': ['LO', '1', 'ClinicalTrialSubjectReadingID'],\n '0050': ['LO', '1', 'ClinicalTrialTimePointID'],\n '0051': ['ST', '1', 'ClinicalTrialTimePointDescription'],\n '0052': ['FD', '1', 'LongitudinalTemporalOffsetFromEvent'],\n '0053': ['CS', '1', 'LongitudinalTemporalEventType'],\n '0060': ['LO', '1', 'ClinicalTrialCoordinatingCenterName'],\n '0062': ['CS', '1', 'PatientIdentityRemoved'],\n '0063': ['LO', '1-n', 'DeidentificationMethod'],\n '0064': ['SQ', '1', 'DeidentificationMethodCodeSequence'],\n '0071': ['LO', '1', 'ClinicalTrialSeriesID'],\n '0072': ['LO', '1', 'ClinicalTrialSeriesDescription'],\n '0081': ['LO', '1', 'ClinicalTrialProtocolEthicsCommitteeName'],\n '0082': ['LO', '1', 'ClinicalTrialProtocolEthicsCommitteeApprovalNumber'],\n '0083': ['SQ', '1', 'ConsentForClinicalTrialUseSequence'],\n '0084': ['CS', '1', 'DistributionType'],\n '0085': ['CS', '1', 'ConsentForDistributionFlag'],\n '0086': ['DA', '1', 'EthicsCommitteeApprovalEffectivenessStartDate'],\n '0087': ['DA', '1', 'EthicsCommitteeApprovalEffectivenessEndDate']\n },\n '0014': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0023': ['ST', '1', 'CADFileFormat'],\n '0024': ['ST', '1', 'ComponentReferenceSystem'],\n '0025': ['ST', '1', 'ComponentManufacturingProcedure'],\n '0028': ['ST', '1', 'ComponentManufacturer'],\n '0030': ['DS', '1-n', 'MaterialThickness'],\n '0032': ['DS', '1-n', 'MaterialPipeDiameter'],\n '0034': ['DS', '1-n', 'MaterialIsolationDiameter'],\n '0042': ['ST', '1', 'MaterialGrade'],\n '0044': ['ST', '1', 'MaterialPropertiesDescription'],\n '0045': ['ST', '1', 'MaterialPropertiesFileFormatRetired'],\n '0046': ['LT', '1', 'MaterialNotes'],\n '0050': ['CS', '1', 'ComponentShape'],\n '0052': ['CS', '1', 'CurvatureType'],\n '0054': ['DS', '1', 'OuterDiameter'],\n '0056': ['DS', '1', 'InnerDiameter'],\n '0100': ['LO', '1-n', 'ComponentWelderIDs'],\n '0101': ['CS', '1', 'SecondaryApprovalStatus'],\n '0102': ['DA', '1', 'SecondaryReviewDate'],\n '0103': ['TM', '1', 'SecondaryReviewTime'],\n '0104': ['PN', '1', 'SecondaryReviewerName'],\n '0105': ['ST', '1', 'RepairID'],\n '0106': ['SQ', '1', 'MultipleComponentApprovalSequence'],\n '0107': ['CS', '1-n', 'OtherApprovalStatus'],\n '0108': ['CS', '1-n', 'OtherSecondaryApprovalStatus'],\n '1010': ['ST', '1', 'ActualEnvironmentalConditions'],\n '1020': ['DA', '1', 'ExpiryDate'],\n '1040': ['ST', '1', 'EnvironmentalConditions'],\n '2002': ['SQ', '1', 'EvaluatorSequence'],\n '2004': ['IS', '1', 'EvaluatorNumber'],\n '2006': ['PN', '1', 'EvaluatorName'],\n '2008': ['IS', '1', 'EvaluationAttempt'],\n '2012': ['SQ', '1', 'IndicationSequence'],\n '2014': ['IS', '1', 'IndicationNumber'],\n '2016': ['SH', '1', 'IndicationLabel'],\n '2018': ['ST', '1', 'IndicationDescription'],\n '201A': ['CS', '1-n', 'IndicationType'],\n '201C': ['CS', '1', 'IndicationDisposition'],\n '201E': ['SQ', '1', 'IndicationROISequence'],\n '2030': ['SQ', '1', 'IndicationPhysicalPropertySequence'],\n '2032': ['SH', '1', 'PropertyLabel'],\n '2202': ['IS', '1', 'CoordinateSystemNumberOfAxes'],\n '2204': ['SQ', '1', 'CoordinateSystemAxesSequence'],\n '2206': ['ST', '1', 'CoordinateSystemAxisDescription'],\n '2208': ['CS', '1', 'CoordinateSystemDataSetMapping'],\n '220A': ['IS', '1', 'CoordinateSystemAxisNumber'],\n '220C': ['CS', '1', 'CoordinateSystemAxisType'],\n '220E': ['CS', '1', 'CoordinateSystemAxisUnits'],\n '2210': ['OB', '1', 'CoordinateSystemAxisValues'],\n '2220': ['SQ', '1', 'CoordinateSystemTransformSequence'],\n '2222': ['ST', '1', 'TransformDescription'],\n '2224': ['IS', '1', 'TransformNumberOfAxes'],\n '2226': ['IS', '1-n', 'TransformOrderOfAxes'],\n '2228': ['CS', '1', 'TransformedAxisUnits'],\n '222A': ['DS', '1-n', 'CoordinateSystemTransformRotationAndScaleMatrix'],\n '222C': ['DS', '1-n', 'CoordinateSystemTransformTranslationMatrix'],\n '3011': ['DS', '1', 'InternalDetectorFrameTime'],\n '3012': ['DS', '1', 'NumberOfFramesIntegrated'],\n '3020': ['SQ', '1', 'DetectorTemperatureSequence'],\n '3022': ['ST', '1', 'SensorName'],\n '3024': ['DS', '1', 'HorizontalOffsetOfSensor'],\n '3026': ['DS', '1', 'VerticalOffsetOfSensor'],\n '3028': ['DS', '1', 'SensorTemperature'],\n '3040': ['SQ', '1', 'DarkCurrentSequence'],\n '3050': ['ox', '1', 'DarkCurrentCounts'],\n '3060': ['SQ', '1', 'GainCorrectionReferenceSequence'],\n '3070': ['ox', '1', 'AirCounts'],\n '3071': ['DS', '1', 'KVUsedInGainCalibration'],\n '3072': ['DS', '1', 'MAUsedInGainCalibration'],\n '3073': ['DS', '1', 'NumberOfFramesUsedForIntegration'],\n '3074': ['LO', '1', 'FilterMaterialUsedInGainCalibration'],\n '3075': ['DS', '1', 'FilterThicknessUsedInGainCalibration'],\n '3076': ['DA', '1', 'DateOfGainCalibration'],\n '3077': ['TM', '1', 'TimeOfGainCalibration'],\n '3080': ['OB', '1', 'BadPixelImage'],\n '3099': ['LT', '1', 'CalibrationNotes'],\n '3100': ['LT', '1', 'LinearityCorrectionTechnique'],\n '3101': ['LT', '1', 'BeamHardeningCorrectionTechnique'],\n '4002': ['SQ', '1', 'PulserEquipmentSequence'],\n '4004': ['CS', '1', 'PulserType'],\n '4006': ['LT', '1', 'PulserNotes'],\n '4008': ['SQ', '1', 'ReceiverEquipmentSequence'],\n '400A': ['CS', '1', 'AmplifierType'],\n '400C': ['LT', '1', 'ReceiverNotes'],\n '400E': ['SQ', '1', 'PreAmplifierEquipmentSequence'],\n '400F': ['LT', '1', 'PreAmplifierNotes'],\n '4010': ['SQ', '1', 'TransmitTransducerSequence'],\n '4011': ['SQ', '1', 'ReceiveTransducerSequence'],\n '4012': ['US', '1', 'NumberOfElements'],\n '4013': ['CS', '1', 'ElementShape'],\n '4014': ['DS', '1', 'ElementDimensionA'],\n '4015': ['DS', '1', 'ElementDimensionB'],\n '4016': ['DS', '1', 'ElementPitchA'],\n '4017': ['DS', '1', 'MeasuredBeamDimensionA'],\n '4018': ['DS', '1', 'MeasuredBeamDimensionB'],\n '4019': ['DS', '1', 'LocationOfMeasuredBeamDiameter'],\n '401A': ['DS', '1', 'NominalFrequency'],\n '401B': ['DS', '1', 'MeasuredCenterFrequency'],\n '401C': ['DS', '1', 'MeasuredBandwidth'],\n '401D': ['DS', '1', 'ElementPitchB'],\n '4020': ['SQ', '1', 'PulserSettingsSequence'],\n '4022': ['DS', '1', 'PulseWidth'],\n '4024': ['DS', '1', 'ExcitationFrequency'],\n '4026': ['CS', '1', 'ModulationType'],\n '4028': ['DS', '1', 'Damping'],\n '4030': ['SQ', '1', 'ReceiverSettingsSequence'],\n '4031': ['DS', '1', 'AcquiredSoundpathLength'],\n '4032': ['CS', '1', 'AcquisitionCompressionType'],\n '4033': ['IS', '1', 'AcquisitionSampleSize'],\n '4034': ['DS', '1', 'RectifierSmoothing'],\n '4035': ['SQ', '1', 'DACSequence'],\n '4036': ['CS', '1', 'DACType'],\n '4038': ['DS', '1-n', 'DACGainPoints'],\n '403A': ['DS', '1-n', 'DACTimePoints'],\n '403C': ['DS', '1-n', 'DACAmplitude'],\n '4040': ['SQ', '1', 'PreAmplifierSettingsSequence'],\n '4050': ['SQ', '1', 'TransmitTransducerSettingsSequence'],\n '4051': ['SQ', '1', 'ReceiveTransducerSettingsSequence'],\n '4052': ['DS', '1', 'IncidentAngle'],\n '4054': ['ST', '1', 'CouplingTechnique'],\n '4056': ['ST', '1', 'CouplingMedium'],\n '4057': ['DS', '1', 'CouplingVelocity'],\n '4058': ['DS', '1', 'ProbeCenterLocationX'],\n '4059': ['DS', '1', 'ProbeCenterLocationZ'],\n '405A': ['DS', '1', 'SoundPathLength'],\n '405C': ['ST', '1', 'DelayLawIdentifier'],\n '4060': ['SQ', '1', 'GateSettingsSequence'],\n '4062': ['DS', '1', 'GateThreshold'],\n '4064': ['DS', '1', 'VelocityOfSound'],\n '4070': ['SQ', '1', 'CalibrationSettingsSequence'],\n '4072': ['ST', '1', 'CalibrationProcedure'],\n '4074': ['SH', '1', 'ProcedureVersion'],\n '4076': ['DA', '1', 'ProcedureCreationDate'],\n '4078': ['DA', '1', 'ProcedureExpirationDate'],\n '407A': ['DA', '1', 'ProcedureLastModifiedDate'],\n '407C': ['TM', '1-n', 'CalibrationTime'],\n '407E': ['DA', '1-n', 'CalibrationDate'],\n '4080': ['SQ', '1', 'ProbeDriveEquipmentSequence'],\n '4081': ['CS', '1', 'DriveType'],\n '4082': ['LT', '1', 'ProbeDriveNotes'],\n '4083': ['SQ', '1', 'DriveProbeSequence'],\n '4084': ['DS', '1', 'ProbeInductance'],\n '4085': ['DS', '1', 'ProbeResistance'],\n '4086': ['SQ', '1', 'ReceiveProbeSequence'],\n '4087': ['SQ', '1', 'ProbeDriveSettingsSequence'],\n '4088': ['DS', '1', 'BridgeResistors'],\n '4089': ['DS', '1', 'ProbeOrientationAngle'],\n '408B': ['DS', '1', 'UserSelectedGainY'],\n '408C': ['DS', '1', 'UserSelectedPhase'],\n '408D': ['DS', '1', 'UserSelectedOffsetX'],\n '408E': ['DS', '1', 'UserSelectedOffsetY'],\n '4091': ['SQ', '1', 'ChannelSettingsSequence'],\n '4092': ['DS', '1', 'ChannelThreshold'],\n '409A': ['SQ', '1', 'ScannerSettingsSequence'],\n '409B': ['ST', '1', 'ScanProcedure'],\n '409C': ['DS', '1', 'TranslationRateX'],\n '409D': ['DS', '1', 'TranslationRateY'],\n '409F': ['DS', '1', 'ChannelOverlap'],\n '40A0': ['LO', '1-n', 'ImageQualityIndicatorType'],\n '40A1': ['LO', '1-n', 'ImageQualityIndicatorMaterial'],\n '40A2': ['LO', '1-n', 'ImageQualityIndicatorSize'],\n '5002': ['IS', '1', 'LINACEnergy'],\n '5004': ['IS', '1', 'LINACOutput'],\n '5100': ['US', '1', 'ActiveAperture'],\n '5101': ['DS', '1', 'TotalAperture'],\n '5102': ['DS', '1', 'ApertureElevation'],\n '5103': ['DS', '1', 'MainLobeAngle'],\n '5104': ['DS', '1', 'MainRoofAngle'],\n '5105': ['CS', '1', 'ConnectorType'],\n '5106': ['SH', '1', 'WedgeModelNumber'],\n '5107': ['DS', '1', 'WedgeAngleFloat'],\n '5108': ['DS', '1', 'WedgeRoofAngle'],\n '5109': ['CS', '1', 'WedgeElement1Position'],\n '510A': ['DS', '1', 'WedgeMaterialVelocity'],\n '510B': ['SH', '1', 'WedgeMaterial'],\n '510C': ['DS', '1', 'WedgeOffsetZ'],\n '510D': ['DS', '1', 'WedgeOriginOffsetX'],\n '510E': ['DS', '1', 'WedgeTimeDelay'],\n '510F': ['SH', '1', 'WedgeName'],\n '5110': ['SH', '1', 'WedgeManufacturerName'],\n '5111': ['LO', '1', 'WedgeDescription'],\n '5112': ['DS', '1', 'NominalBeamAngle'],\n '5113': ['DS', '1', 'WedgeOffsetX'],\n '5114': ['DS', '1', 'WedgeOffsetY'],\n '5115': ['DS', '1', 'WedgeTotalLength'],\n '5116': ['DS', '1', 'WedgeInContactLength'],\n '5117': ['DS', '1', 'WedgeFrontGap'],\n '5118': ['DS', '1', 'WedgeTotalHeight'],\n '5119': ['DS', '1', 'WedgeFrontHeight'],\n '511A': ['DS', '1', 'WedgeRearHeight'],\n '511B': ['DS', '1', 'WedgeTotalWidth'],\n '511C': ['DS', '1', 'WedgeInContactWidth'],\n '511D': ['DS', '1', 'WedgeChamferHeight'],\n '511E': ['CS', '1', 'WedgeCurve'],\n '511F': ['DS', '1', 'RadiusAlongWedge']\n },\n '0016': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['DS', '1', 'WhitePoint'],\n '0002': ['DS', '3', 'PrimaryChromaticities'],\n '0003': ['UT', '1', 'BatteryLevel'],\n '0004': ['DS', '1', 'ExposureTimeInSeconds'],\n '0005': ['DS', '1', 'FNumber'],\n '0006': ['IS', '1', 'OECFRows'],\n '0007': ['IS', '1', 'OECFColumns'],\n '0008': ['UC', '1-n', 'OECFColumnNames'],\n '0009': ['DS', '1-n', 'OECFValues'],\n '000A': ['IS', '1', 'SpatialFrequencyResponseRows'],\n '000B': ['IS', '1', 'SpatialFrequencyResponseColumns'],\n '000C': ['UC', '1-n', 'SpatialFrequencyResponseColumnNames'],\n '000D': ['DS', '1-n', 'SpatialFrequencyResponseValues'],\n '000E': ['IS', '1', 'ColorFilterArrayPatternRows'],\n '000F': ['IS', '1', 'ColorFilterArrayPatternColumns'],\n '0010': ['DS', '1-n', 'ColorFilterArrayPatternValues'],\n '0011': ['US', '1', 'FlashFiringStatus'],\n '0012': ['US', '1', 'FlashReturnStatus'],\n '0013': ['US', '1', 'FlashMode'],\n '0014': ['US', '1', 'FlashFunctionPresent'],\n '0015': ['US', '1', 'FlashRedEyeMode'],\n '0016': ['US', '1', 'ExposureProgram'],\n '0017': ['UT', '1', 'SpectralSensitivity'],\n '0018': ['IS', '1', 'PhotographicSensitivity'],\n '0019': ['IS', '1', 'SelfTimerMode'],\n '001A': ['US', '1', 'SensitivityType'],\n '001B': ['IS', '1', 'StandardOutputSensitivity'],\n '001C': ['IS', '1', 'RecommendedExposureIndex'],\n '001D': ['IS', '1', 'ISOSpeed'],\n '001E': ['IS', '1', 'ISOSpeedLatitudeyyy'],\n '001F': ['IS', '1', 'ISOSpeedLatitudezzz'],\n '0020': ['UT', '1', 'EXIFVersion'],\n '0021': ['DS', '1', 'ShutterSpeedValue'],\n '0022': ['DS', '1', 'ApertureValue'],\n '0023': ['DS', '1', 'BrightnessValue'],\n '0024': ['DS', '1', 'ExposureBiasValue'],\n '0025': ['DS', '1', 'MaxApertureValue'],\n '0026': ['DS', '1', 'SubjectDistance'],\n '0027': ['US', '1', 'MeteringMode'],\n '0028': ['US', '1', 'LightSource'],\n '0029': ['DS', '1', 'FocalLength'],\n '002A': ['IS', '2-4', 'SubjectArea'],\n '002B': ['OB', '1', 'MakerNote'],\n '0030': ['DS', '1', 'Temperature'],\n '0031': ['DS', '1', 'Humidity'],\n '0032': ['DS', '1', 'Pressure'],\n '0033': ['DS', '1', 'WaterDepth'],\n '0034': ['DS', '1', 'Acceleration'],\n '0035': ['DS', '1', 'CameraElevationAngle'],\n '0036': ['DS', '1-2', 'FlashEnergy'],\n '0037': ['IS', '2', 'SubjectLocation'],\n '0038': ['DS', '1', 'PhotographicExposureIndex'],\n '0039': ['US', '1', 'SensingMethod'],\n '003A': ['US', '1', 'FileSource'],\n '003B': ['US', '1', 'SceneType'],\n '0041': ['US', '1', 'CustomRendered'],\n '0042': ['US', '1', 'ExposureMode'],\n '0043': ['US', '1', 'WhiteBalance'],\n '0044': ['DS', '1', 'DigitalZoomRatio'],\n '0045': ['IS', '1', 'FocalLengthIn35mmFilm'],\n '0046': ['US', '1', 'SceneCaptureType'],\n '0047': ['US', '1', 'GainControl'],\n '0048': ['US', '1', 'Contrast'],\n '0049': ['US', '1', 'Saturation'],\n '004A': ['US', '1', 'Sharpness'],\n '004B': ['OB', '1', 'DeviceSettingDescription'],\n '004C': ['US', '1', 'SubjectDistanceRange'],\n '004D': ['UT', '1', 'CameraOwnerName'],\n '004E': ['DS', '4', 'LensSpecification'],\n '004F': ['UT', '1', 'LensMake'],\n '0050': ['UT', '1', 'LensModel'],\n '0051': ['UT', '1', 'LensSerialNumber'],\n '0061': ['CS', '1', 'InteroperabilityIndex'],\n '0062': ['OB', '1', 'InteroperabilityVersion'],\n '0070': ['OB', '1', 'GPSVersionID'],\n '0071': ['CS', '1', 'GPSLatitudeRef'],\n '0072': ['DS', '3', 'GPSLatitude'],\n '0073': ['CS', '1', 'GPSLongitudeRef'],\n '0074': ['DS', '3', 'GPSLongitude'],\n '0075': ['US', '1', 'GPSAltitudeRef'],\n '0076': ['DS', '1', 'GPSAltitude'],\n '0077': ['DT', '1', 'GPSTimeStamp'],\n '0078': ['UT', '1', 'GPSSatellites'],\n '0079': ['CS', '1', 'GPSStatus'],\n '007A': ['CS', '1', 'GPSMeasureMode'],\n '007B': ['DS', '1', 'GPSDOP'],\n '007C': ['CS', '1', 'GPSSpeedRef'],\n '007D': ['DS', '1', 'GPSSpeed'],\n '007E': ['CS', '1', 'GPSTrackRef'],\n '007F': ['DS', '1', 'GPSTrack'],\n '0080': ['CS', '1', 'GPSImgDirectionRef'],\n '0081': ['DS', '1', 'GPSImgDirection'],\n '0082': ['UT', '1', 'GPSMapDatum'],\n '0083': ['CS', '1', 'GPSDestLatitudeRef'],\n '0084': ['DS', '3', 'GPSDestLatitude'],\n '0085': ['CS', '1', 'GPSDestLongitudeRef'],\n '0086': ['DS', '3', 'GPSDestLongitude'],\n '0087': ['CS', '1', 'GPSDestBearingRef'],\n '0088': ['DS', '1', 'GPSDestBearing'],\n '0089': ['CS', '1', 'GPSDestDistanceRef'],\n '008A': ['DS', '1', 'GPSDestDistance'],\n '008B': ['OB', '1', 'GPSProcessingMethod'],\n '008C': ['OB', '1', 'GPSAreaInformation'],\n '008D': ['DT', '1', 'GPSDateStamp'],\n '008E': ['IS', '1', 'GPSDifferential'],\n '1001': ['CS', '1', 'LightSourcePolarization'],\n '1002': ['DS', '1', 'EmitterColorTemperature'],\n '1003': ['CS', '1', 'ContactMethod'],\n '1004': ['CS', '1-n', 'ImmersionMedia'],\n '1005': ['DS', '1', 'OpticalMagnificationFactor']\n },\n '0018': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['LO', '1', 'ContrastBolusAgent'],\n '0012': ['SQ', '1', 'ContrastBolusAgentSequence'],\n '0013': ['FL', '1', 'ContrastBolusT1Relaxivity'],\n '0014': ['SQ', '1', 'ContrastBolusAdministrationRouteSequence'],\n '0015': ['CS', '1', 'BodyPartExamined'],\n '0020': ['CS', '1-n', 'ScanningSequence'],\n '0021': ['CS', '1-n', 'SequenceVariant'],\n '0022': ['CS', '1-n', 'ScanOptions'],\n '0023': ['CS', '1', 'MRAcquisitionType'],\n '0024': ['SH', '1', 'SequenceName'],\n '0025': ['CS', '1', 'AngioFlag'],\n '0026': ['SQ', '1', 'InterventionDrugInformationSequence'],\n '0027': ['TM', '1', 'InterventionDrugStopTime'],\n '0028': ['DS', '1', 'InterventionDrugDose'],\n '0029': ['SQ', '1', 'InterventionDrugCodeSequence'],\n '002A': ['SQ', '1', 'AdditionalDrugSequence'],\n '0030': ['LO', '1-n', 'Radionuclide'],\n '0031': ['LO', '1', 'Radiopharmaceutical'],\n '0032': ['DS', '1', 'EnergyWindowCenterline'],\n '0033': ['DS', '1-n', 'EnergyWindowTotalWidth'],\n '0034': ['LO', '1', 'InterventionDrugName'],\n '0035': ['TM', '1', 'InterventionDrugStartTime'],\n '0036': ['SQ', '1', 'InterventionSequence'],\n '0037': ['CS', '1', 'TherapyType'],\n '0038': ['CS', '1', 'InterventionStatus'],\n '0039': ['CS', '1', 'TherapyDescription'],\n '003A': ['ST', '1', 'InterventionDescription'],\n '0040': ['IS', '1', 'CineRate'],\n '0042': ['CS', '1', 'InitialCineRunState'],\n '0050': ['DS', '1', 'SliceThickness'],\n '0060': ['DS', '1', 'KVP'],\n '0061': ['DS', '1', ''],\n '0070': ['IS', '1', 'CountsAccumulated'],\n '0071': ['CS', '1', 'AcquisitionTerminationCondition'],\n '0072': ['DS', '1', 'EffectiveDuration'],\n '0073': ['CS', '1', 'AcquisitionStartCondition'],\n '0074': ['IS', '1', 'AcquisitionStartConditionData'],\n '0075': ['IS', '1', 'AcquisitionTerminationConditionData'],\n '0080': ['DS', '1', 'RepetitionTime'],\n '0081': ['DS', '1', 'EchoTime'],\n '0082': ['DS', '1', 'InversionTime'],\n '0083': ['DS', '1', 'NumberOfAverages'],\n '0084': ['DS', '1', 'ImagingFrequency'],\n '0085': ['SH', '1', 'ImagedNucleus'],\n '0086': ['IS', '1-n', 'EchoNumbers'],\n '0087': ['DS', '1', 'MagneticFieldStrength'],\n '0088': ['DS', '1', 'SpacingBetweenSlices'],\n '0089': ['IS', '1', 'NumberOfPhaseEncodingSteps'],\n '0090': ['DS', '1', 'DataCollectionDiameter'],\n '0091': ['IS', '1', 'EchoTrainLength'],\n '0093': ['DS', '1', 'PercentSampling'],\n '0094': ['DS', '1', 'PercentPhaseFieldOfView'],\n '0095': ['DS', '1', 'PixelBandwidth'],\n '1000': ['LO', '1', 'DeviceSerialNumber'],\n '1002': ['UI', '1', 'DeviceUID'],\n '1003': ['LO', '1', 'DeviceID'],\n '1004': ['LO', '1', 'PlateID'],\n '1005': ['LO', '1', 'GeneratorID'],\n '1006': ['LO', '1', 'GridID'],\n '1007': ['LO', '1', 'CassetteID'],\n '1008': ['LO', '1', 'GantryID'],\n '1009': ['UT', '1', 'UniqueDeviceIdentifier'],\n '100A': ['SQ', '1', 'UDISequence'],\n '100B': ['UI', '1-n', 'ManufacturerDeviceClassUID'],\n '1010': ['LO', '1', 'SecondaryCaptureDeviceID'],\n '1011': ['LO', '1', 'HardcopyCreationDeviceID'],\n '1012': ['DA', '1', 'DateOfSecondaryCapture'],\n '1014': ['TM', '1', 'TimeOfSecondaryCapture'],\n '1016': ['LO', '1', 'SecondaryCaptureDeviceManufacturer'],\n '1017': ['LO', '1', 'HardcopyDeviceManufacturer'],\n '1018': ['LO', '1', 'SecondaryCaptureDeviceManufacturerModelName'],\n '1019': ['LO', '1-n', 'SecondaryCaptureDeviceSoftwareVersions'],\n '101A': ['LO', '1-n', 'HardcopyDeviceSoftwareVersion'],\n '101B': ['LO', '1', 'HardcopyDeviceManufacturerModelName'],\n '1020': ['LO', '1-n', 'SoftwareVersions'],\n '1022': ['SH', '1', 'VideoImageFormatAcquired'],\n '1023': ['LO', '1', 'DigitalImageFormatAcquired'],\n '1030': ['LO', '1', 'ProtocolName'],\n '1040': ['LO', '1', 'ContrastBolusRoute'],\n '1041': ['DS', '1', 'ContrastBolusVolume'],\n '1042': ['TM', '1', 'ContrastBolusStartTime'],\n '1043': ['TM', '1', 'ContrastBolusStopTime'],\n '1044': ['DS', '1', 'ContrastBolusTotalDose'],\n '1045': ['IS', '1', 'SyringeCounts'],\n '1046': ['DS', '1-n', 'ContrastFlowRate'],\n '1047': ['DS', '1-n', 'ContrastFlowDuration'],\n '1048': ['CS', '1', 'ContrastBolusIngredient'],\n '1049': ['DS', '1', 'ContrastBolusIngredientConcentration'],\n '1050': ['DS', '1', 'SpatialResolution'],\n '1060': ['DS', '1', 'TriggerTime'],\n '1061': ['LO', '1', 'TriggerSourceOrType'],\n '1062': ['IS', '1', 'NominalInterval'],\n '1063': ['DS', '1', 'FrameTime'],\n '1064': ['LO', '1', 'CardiacFramingType'],\n '1065': ['DS', '1-n', 'FrameTimeVector'],\n '1066': ['DS', '1', 'FrameDelay'],\n '1067': ['DS', '1', 'ImageTriggerDelay'],\n '1068': ['DS', '1', 'MultiplexGroupTimeOffset'],\n '1069': ['DS', '1', 'TriggerTimeOffset'],\n '106A': ['CS', '1', 'SynchronizationTrigger'],\n '106C': ['US', '2', 'SynchronizationChannel'],\n '106E': ['UL', '1', 'TriggerSamplePosition'],\n '1070': ['LO', '1', 'RadiopharmaceuticalRoute'],\n '1071': ['DS', '1', 'RadiopharmaceuticalVolume'],\n '1072': ['TM', '1', 'RadiopharmaceuticalStartTime'],\n '1073': ['TM', '1', 'RadiopharmaceuticalStopTime'],\n '1074': ['DS', '1', 'RadionuclideTotalDose'],\n '1075': ['DS', '1', 'RadionuclideHalfLife'],\n '1076': ['DS', '1', 'RadionuclidePositronFraction'],\n '1077': ['DS', '1', 'RadiopharmaceuticalSpecificActivity'],\n '1078': ['DT', '1', 'RadiopharmaceuticalStartDateTime'],\n '1079': ['DT', '1', 'RadiopharmaceuticalStopDateTime'],\n '1080': ['CS', '1', 'BeatRejectionFlag'],\n '1081': ['IS', '1', 'LowRRValue'],\n '1082': ['IS', '1', 'HighRRValue'],\n '1083': ['IS', '1', 'IntervalsAcquired'],\n '1084': ['IS', '1', 'IntervalsRejected'],\n '1085': ['LO', '1', 'PVCRejection'],\n '1086': ['IS', '1', 'SkipBeats'],\n '1088': ['IS', '1', 'HeartRate'],\n '1090': ['IS', '1', 'CardiacNumberOfImages'],\n '1094': ['IS', '1', 'TriggerWindow'],\n '1100': ['DS', '1', 'ReconstructionDiameter'],\n '1110': ['DS', '1', 'DistanceSourceToDetector'],\n '1111': ['DS', '1', 'DistanceSourceToPatient'],\n '1114': ['DS', '1', 'EstimatedRadiographicMagnificationFactor'],\n '1120': ['DS', '1', 'GantryDetectorTilt'],\n '1121': ['DS', '1', 'GantryDetectorSlew'],\n '1130': ['DS', '1', 'TableHeight'],\n '1131': ['DS', '1', 'TableTraverse'],\n '1134': ['CS', '1', 'TableMotion'],\n '1135': ['DS', '1-n', 'TableVerticalIncrement'],\n '1136': ['DS', '1-n', 'TableLateralIncrement'],\n '1137': ['DS', '1-n', 'TableLongitudinalIncrement'],\n '1138': ['DS', '1', 'TableAngle'],\n '113A': ['CS', '1', 'TableType'],\n '1140': ['CS', '1', 'RotationDirection'],\n '1141': ['DS', '1', 'AngularPosition'],\n '1142': ['DS', '1-n', 'RadialPosition'],\n '1143': ['DS', '1', 'ScanArc'],\n '1144': ['DS', '1', 'AngularStep'],\n '1145': ['DS', '1', 'CenterOfRotationOffset'],\n '1146': ['DS', '1-n', 'RotationOffset'],\n '1147': ['CS', '1', 'FieldOfViewShape'],\n '1149': ['IS', '1-2', 'FieldOfViewDimensions'],\n '1150': ['IS', '1', 'ExposureTime'],\n '1151': ['IS', '1', 'XRayTubeCurrent'],\n '1152': ['IS', '1', 'Exposure'],\n '1153': ['IS', '1', 'ExposureInuAs'],\n '1154': ['DS', '1', 'AveragePulseWidth'],\n '1155': ['CS', '1', 'RadiationSetting'],\n '1156': ['CS', '1', 'RectificationType'],\n '115A': ['CS', '1', 'RadiationMode'],\n '115E': ['DS', '1', 'ImageAndFluoroscopyAreaDoseProduct'],\n '1160': ['SH', '1', 'FilterType'],\n '1161': ['LO', '1-n', 'TypeOfFilters'],\n '1162': ['DS', '1', 'IntensifierSize'],\n '1164': ['DS', '2', 'ImagerPixelSpacing'],\n '1166': ['CS', '1-n', 'Grid'],\n '1170': ['IS', '1', 'GeneratorPower'],\n '1180': ['SH', '1', 'CollimatorGridName'],\n '1181': ['CS', '1', 'CollimatorType'],\n '1182': ['IS', '1-2', 'FocalDistance'],\n '1183': ['DS', '1-2', 'XFocusCenter'],\n '1184': ['DS', '1-2', 'YFocusCenter'],\n '1190': ['DS', '1-n', 'FocalSpots'],\n '1191': ['CS', '1', 'AnodeTargetMaterial'],\n '11A0': ['DS', '1', 'BodyPartThickness'],\n '11A2': ['DS', '1', 'CompressionForce'],\n '11A3': ['DS', '1', 'CompressionPressure'],\n '11A4': ['LO', '1', 'PaddleDescription'],\n '11A5': ['DS', '1', 'CompressionContactArea'],\n '11B0': ['LO', '1', 'AcquisitionMode'],\n '11B1': ['LO', '1', 'DoseModeName'],\n '11B2': ['CS', '1', 'AcquiredSubtractionMaskFlag'],\n '11B3': ['CS', '1', 'FluoroscopyPersistenceFlag'],\n '11B4': ['CS', '1', 'FluoroscopyLastImageHoldPersistenceFlag'],\n '11B5': ['IS', '1', 'UpperLimitNumberOfPersistentFluoroscopyFrames'],\n '11B6': ['CS', '1', 'ContrastBolusAutoInjectionTriggerFlag'],\n '11B7': ['FD', '1', 'ContrastBolusInjectionDelay'],\n '11B8': ['SQ', '1', 'XAAcquisitionPhaseDetailsSequence'],\n '11B9': ['FD', '1', 'XAAcquisitionFrameRate'],\n '11BA': ['SQ', '1', 'XAPlaneDetailsSequence'],\n '11BB': ['LO', '1', 'AcquisitionFieldOfViewLabel'],\n '11BC': ['SQ', '1', 'XRayFilterDetailsSequence'],\n '11BD': ['FD', '1', 'XAAcquisitionDuration'],\n '11BE': ['CS', '1', 'ReconstructionPipelineType'],\n '11BF': ['SQ', '1', 'ImageFilterDetailsSequence'],\n '11C0': ['CS', '1', 'AppliedMaskSubtractionFlag'],\n '11C1': ['SQ', '1', 'RequestedSeriesDescriptionCodeSequence'],\n '1200': ['DA', '1-n', 'DateOfLastCalibration'],\n '1201': ['TM', '1-n', 'TimeOfLastCalibration'],\n '1202': ['DT', '1', 'DateTimeOfLastCalibration'],\n '1203': ['DT', '1', 'CalibrationDateTime'],\n '1210': ['SH', '1-n', 'ConvolutionKernel'],\n '1240': ['IS', '1-n', 'UpperLowerPixelValues'],\n '1242': ['IS', '1', 'ActualFrameDuration'],\n '1243': ['IS', '1', 'CountRate'],\n '1244': ['US', '1', 'PreferredPlaybackSequencing'],\n '1250': ['SH', '1', 'ReceiveCoilName'],\n '1251': ['SH', '1', 'TransmitCoilName'],\n '1260': ['SH', '1', 'PlateType'],\n '1261': ['LO', '1', 'PhosphorType'],\n '1271': ['FD', '1', 'WaterEquivalentDiameter'],\n '1272': ['SQ', '1', 'WaterEquivalentDiameterCalculationMethodCodeSequence'],\n '1300': ['DS', '1', 'ScanVelocity'],\n '1301': ['CS', '1-n', 'WholeBodyTechnique'],\n '1302': ['IS', '1', 'ScanLength'],\n '1310': ['US', '4', 'AcquisitionMatrix'],\n '1312': ['CS', '1', 'InPlanePhaseEncodingDirection'],\n '1314': ['DS', '1', 'FlipAngle'],\n '1315': ['CS', '1', 'VariableFlipAngleFlag'],\n '1316': ['DS', '1', 'SAR'],\n '1318': ['DS', '1', 'dBdt'],\n '1320': ['FL', '1', 'B1rms'],\n '1400': ['LO', '1', 'AcquisitionDeviceProcessingDescription'],\n '1401': ['LO', '1', 'AcquisitionDeviceProcessingCode'],\n '1402': ['CS', '1', 'CassetteOrientation'],\n '1403': ['CS', '1', 'CassetteSize'],\n '1404': ['US', '1', 'ExposuresOnPlate'],\n '1405': ['IS', '1', 'RelativeXRayExposure'],\n '1411': ['DS', '1', 'ExposureIndex'],\n '1412': ['DS', '1', 'TargetExposureIndex'],\n '1413': ['DS', '1', 'DeviationIndex'],\n '1450': ['DS', '1', 'ColumnAngulation'],\n '1460': ['DS', '1', 'TomoLayerHeight'],\n '1470': ['DS', '1', 'TomoAngle'],\n '1480': ['DS', '1', 'TomoTime'],\n '1490': ['CS', '1', 'TomoType'],\n '1491': ['CS', '1', 'TomoClass'],\n '1495': ['IS', '1', 'NumberOfTomosynthesisSourceImages'],\n '1500': ['CS', '1', 'PositionerMotion'],\n '1508': ['CS', '1', 'PositionerType'],\n '1510': ['DS', '1', 'PositionerPrimaryAngle'],\n '1511': ['DS', '1', 'PositionerSecondaryAngle'],\n '1520': ['DS', '1-n', 'PositionerPrimaryAngleIncrement'],\n '1521': ['DS', '1-n', 'PositionerSecondaryAngleIncrement'],\n '1530': ['DS', '1', 'DetectorPrimaryAngle'],\n '1531': ['DS', '1', 'DetectorSecondaryAngle'],\n '1600': ['CS', '1-3', 'ShutterShape'],\n '1602': ['IS', '1', 'ShutterLeftVerticalEdge'],\n '1604': ['IS', '1', 'ShutterRightVerticalEdge'],\n '1606': ['IS', '1', 'ShutterUpperHorizontalEdge'],\n '1608': ['IS', '1', 'ShutterLowerHorizontalEdge'],\n '1610': ['IS', '2', 'CenterOfCircularShutter'],\n '1612': ['IS', '1', 'RadiusOfCircularShutter'],\n '1620': ['IS', '2-2n', 'VerticesOfThePolygonalShutter'],\n '1622': ['US', '1', 'ShutterPresentationValue'],\n '1623': ['US', '1', 'ShutterOverlayGroup'],\n '1624': ['US', '3', 'ShutterPresentationColorCIELabValue'],\n '1630': ['CS', '1', 'OutlineShapeType'],\n '1631': ['FD', '1', 'OutlineLeftVerticalEdge'],\n '1632': ['FD', '1', 'OutlineRightVerticalEdge'],\n '1633': ['FD', '1', 'OutlineUpperHorizontalEdge'],\n '1634': ['FD', '1', 'OutlineLowerHorizontalEdge'],\n '1635': ['FD', '2', 'CenterOfCircularOutline'],\n '1636': ['FD', '1', 'DiameterOfCircularOutline'],\n '1637': ['UL', '1', 'NumberOfPolygonalVertices'],\n '1638': ['OF', '1', 'VerticesOfThePolygonalOutline'],\n '1700': ['CS', '1-3', 'CollimatorShape'],\n '1702': ['IS', '1', 'CollimatorLeftVerticalEdge'],\n '1704': ['IS', '1', 'CollimatorRightVerticalEdge'],\n '1706': ['IS', '1', 'CollimatorUpperHorizontalEdge'],\n '1708': ['IS', '1', 'CollimatorLowerHorizontalEdge'],\n '1710': ['IS', '2', 'CenterOfCircularCollimator'],\n '1712': ['IS', '1', 'RadiusOfCircularCollimator'],\n '1720': ['IS', '2-2n', 'VerticesOfThePolygonalCollimator'],\n '1800': ['CS', '1', 'AcquisitionTimeSynchronized'],\n '1801': ['SH', '1', 'TimeSource'],\n '1802': ['CS', '1', 'TimeDistributionProtocol'],\n '1803': ['LO', '1', 'NTPSourceAddress'],\n '2001': ['IS', '1-n', 'PageNumberVector'],\n '2002': ['SH', '1-n', 'FrameLabelVector'],\n '2003': ['DS', '1-n', 'FramePrimaryAngleVector'],\n '2004': ['DS', '1-n', 'FrameSecondaryAngleVector'],\n '2005': ['DS', '1-n', 'SliceLocationVector'],\n '2006': ['SH', '1-n', 'DisplayWindowLabelVector'],\n '2010': ['DS', '2', 'NominalScannedPixelSpacing'],\n '2020': ['CS', '1', 'DigitizingDeviceTransportDirection'],\n '2030': ['DS', '1', 'RotationOfScannedFilm'],\n '2041': ['SQ', '1', 'BiopsyTargetSequence'],\n '2042': ['UI', '1', 'TargetUID'],\n '2043': ['FL', '2', 'LocalizingCursorPosition'],\n '2044': ['FL', '3', 'CalculatedTargetPosition'],\n '2045': ['SH', '1', 'TargetLabel'],\n '2046': ['FL', '1', 'DisplayedZValue'],\n '3100': ['CS', '1', 'IVUSAcquisition'],\n '3101': ['DS', '1', 'IVUSPullbackRate'],\n '3102': ['DS', '1', 'IVUSGatedRate'],\n '3103': ['IS', '1', 'IVUSPullbackStartFrameNumber'],\n '3104': ['IS', '1', 'IVUSPullbackStopFrameNumber'],\n '3105': ['IS', '1-n', 'LesionNumber'],\n '4000': ['LT', '1', 'AcquisitionComments'],\n '5000': ['SH', '1-n', 'OutputPower'],\n '5010': ['LO', '1-n', 'TransducerData'],\n '5011': ['SQ', '1', 'TransducerIdentificationSequence'],\n '5012': ['DS', '1', 'FocusDepth'],\n '5020': ['LO', '1', 'ProcessingFunction'],\n '5021': ['LO', '1', 'PostprocessingFunction'],\n '5022': ['DS', '1', 'MechanicalIndex'],\n '5024': ['DS', '1', 'BoneThermalIndex'],\n '5026': ['DS', '1', 'CranialThermalIndex'],\n '5027': ['DS', '1', 'SoftTissueThermalIndex'],\n '5028': ['DS', '1', 'SoftTissueFocusThermalIndex'],\n '5029': ['DS', '1', 'SoftTissueSurfaceThermalIndex'],\n '5030': ['DS', '1', 'DynamicRange'],\n '5040': ['DS', '1', 'TotalGain'],\n '5050': ['IS', '1', 'DepthOfScanField'],\n '5100': ['CS', '1', 'PatientPosition'],\n '5101': ['CS', '1', 'ViewPosition'],\n '5104': ['SQ', '1', 'ProjectionEponymousNameCodeSequence'],\n '5210': ['DS', '6', 'ImageTransformationMatrix'],\n '5212': ['DS', '3', 'ImageTranslationVector'],\n '6000': ['DS', '1', 'Sensitivity'],\n '6011': ['SQ', '1', 'SequenceOfUltrasoundRegions'],\n '6012': ['US', '1', 'RegionSpatialFormat'],\n '6014': ['US', '1', 'RegionDataType'],\n '6016': ['UL', '1', 'RegionFlags'],\n '6018': ['UL', '1', 'RegionLocationMinX0'],\n '601A': ['UL', '1', 'RegionLocationMinY0'],\n '601C': ['UL', '1', 'RegionLocationMaxX1'],\n '601E': ['UL', '1', 'RegionLocationMaxY1'],\n '6020': ['SL', '1', 'ReferencePixelX0'],\n '6022': ['SL', '1', 'ReferencePixelY0'],\n '6024': ['US', '1', 'PhysicalUnitsXDirection'],\n '6026': ['US', '1', 'PhysicalUnitsYDirection'],\n '6028': ['FD', '1', 'ReferencePixelPhysicalValueX'],\n '602A': ['FD', '1', 'ReferencePixelPhysicalValueY'],\n '602C': ['FD', '1', 'PhysicalDeltaX'],\n '602E': ['FD', '1', 'PhysicalDeltaY'],\n '6030': ['UL', '1', 'TransducerFrequency'],\n '6031': ['CS', '1', 'TransducerType'],\n '6032': ['UL', '1', 'PulseRepetitionFrequency'],\n '6034': ['FD', '1', 'DopplerCorrectionAngle'],\n '6036': ['FD', '1', 'SteeringAngle'],\n '6038': ['UL', '1', 'DopplerSampleVolumeXPositionRetired'],\n '6039': ['SL', '1', 'DopplerSampleVolumeXPosition'],\n '603A': ['UL', '1', 'DopplerSampleVolumeYPositionRetired'],\n '603B': ['SL', '1', 'DopplerSampleVolumeYPosition'],\n '603C': ['UL', '1', 'TMLinePositionX0Retired'],\n '603D': ['SL', '1', 'TMLinePositionX0'],\n '603E': ['UL', '1', 'TMLinePositionY0Retired'],\n '603F': ['SL', '1', 'TMLinePositionY0'],\n '6040': ['UL', '1', 'TMLinePositionX1Retired'],\n '6041': ['SL', '1', 'TMLinePositionX1'],\n '6042': ['UL', '1', 'TMLinePositionY1Retired'],\n '6043': ['SL', '1', 'TMLinePositionY1'],\n '6044': ['US', '1', 'PixelComponentOrganization'],\n '6046': ['UL', '1', 'PixelComponentMask'],\n '6048': ['UL', '1', 'PixelComponentRangeStart'],\n '604A': ['UL', '1', 'PixelComponentRangeStop'],\n '604C': ['US', '1', 'PixelComponentPhysicalUnits'],\n '604E': ['US', '1', 'PixelComponentDataType'],\n '6050': ['UL', '1', 'NumberOfTableBreakPoints'],\n '6052': ['UL', '1-n', 'TableOfXBreakPoints'],\n '6054': ['FD', '1-n', 'TableOfYBreakPoints'],\n '6056': ['UL', '1', 'NumberOfTableEntries'],\n '6058': ['UL', '1-n', 'TableOfPixelValues'],\n '605A': ['FL', '1-n', 'TableOfParameterValues'],\n '6060': ['FL', '1-n', 'RWaveTimeVector'],\n '6070': ['US', '1', 'ActiveImageAreaOverlayGroup'],\n '7000': ['CS', '1', 'DetectorConditionsNominalFlag'],\n '7001': ['DS', '1', 'DetectorTemperature'],\n '7004': ['CS', '1', 'DetectorType'],\n '7005': ['CS', '1', 'DetectorConfiguration'],\n '7006': ['LT', '1', 'DetectorDescription'],\n '7008': ['LT', '1', 'DetectorMode'],\n '700A': ['SH', '1', 'DetectorID'],\n '700C': ['DA', '1', 'DateOfLastDetectorCalibration'],\n '700E': ['TM', '1', 'TimeOfLastDetectorCalibration'],\n '7010': ['IS', '1', 'ExposuresOnDetectorSinceLastCalibration'],\n '7011': ['IS', '1', 'ExposuresOnDetectorSinceManufactured'],\n '7012': ['DS', '1', 'DetectorTimeSinceLastExposure'],\n '7014': ['DS', '1', 'DetectorActiveTime'],\n '7016': ['DS', '1', 'DetectorActivationOffsetFromExposure'],\n '701A': ['DS', '2', 'DetectorBinning'],\n '7020': ['DS', '2', 'DetectorElementPhysicalSize'],\n '7022': ['DS', '2', 'DetectorElementSpacing'],\n '7024': ['CS', '1', 'DetectorActiveShape'],\n '7026': ['DS', '1-2', 'DetectorActiveDimensions'],\n '7028': ['DS', '2', 'DetectorActiveOrigin'],\n '702A': ['LO', '1', 'DetectorManufacturerName'],\n '702B': ['LO', '1', 'DetectorManufacturerModelName'],\n '7030': ['DS', '2', 'FieldOfViewOrigin'],\n '7032': ['DS', '1', 'FieldOfViewRotation'],\n '7034': ['CS', '1', 'FieldOfViewHorizontalFlip'],\n '7036': ['FL', '2', 'PixelDataAreaOriginRelativeToFOV'],\n '7038': ['FL', '1', 'PixelDataAreaRotationAngleRelativeToFOV'],\n '7040': ['LT', '1', 'GridAbsorbingMaterial'],\n '7041': ['LT', '1', 'GridSpacingMaterial'],\n '7042': ['DS', '1', 'GridThickness'],\n '7044': ['DS', '1', 'GridPitch'],\n '7046': ['IS', '2', 'GridAspectRatio'],\n '7048': ['DS', '1', 'GridPeriod'],\n '704C': ['DS', '1', 'GridFocalDistance'],\n '7050': ['CS', '1-n', 'FilterMaterial'],\n '7052': ['DS', '1-n', 'FilterThicknessMinimum'],\n '7054': ['DS', '1-n', 'FilterThicknessMaximum'],\n '7056': ['FL', '1-n', 'FilterBeamPathLengthMinimum'],\n '7058': ['FL', '1-n', 'FilterBeamPathLengthMaximum'],\n '7060': ['CS', '1', 'ExposureControlMode'],\n '7062': ['LT', '1', 'ExposureControlModeDescription'],\n '7064': ['CS', '1', 'ExposureStatus'],\n '7065': ['DS', '1', 'PhototimerSetting'],\n '8150': ['DS', '1', 'ExposureTimeInuS'],\n '8151': ['DS', '1', 'XRayTubeCurrentInuA'],\n '9004': ['CS', '1', 'ContentQualification'],\n '9005': ['SH', '1', 'PulseSequenceName'],\n '9006': ['SQ', '1', 'MRImagingModifierSequence'],\n '9008': ['CS', '1', 'EchoPulseSequence'],\n '9009': ['CS', '1', 'InversionRecovery'],\n '9010': ['CS', '1', 'FlowCompensation'],\n '9011': ['CS', '1', 'MultipleSpinEcho'],\n '9012': ['CS', '1', 'MultiPlanarExcitation'],\n '9014': ['CS', '1', 'PhaseContrast'],\n '9015': ['CS', '1', 'TimeOfFlightContrast'],\n '9016': ['CS', '1', 'Spoiling'],\n '9017': ['CS', '1', 'SteadyStatePulseSequence'],\n '9018': ['CS', '1', 'EchoPlanarPulseSequence'],\n '9019': ['FD', '1', 'TagAngleFirstAxis'],\n '9020': ['CS', '1', 'MagnetizationTransfer'],\n '9021': ['CS', '1', 'T2Preparation'],\n '9022': ['CS', '1', 'BloodSignalNulling'],\n '9024': ['CS', '1', 'SaturationRecovery'],\n '9025': ['CS', '1', 'SpectrallySelectedSuppression'],\n '9026': ['CS', '1', 'SpectrallySelectedExcitation'],\n '9027': ['CS', '1', 'SpatialPresaturation'],\n '9028': ['CS', '1', 'Tagging'],\n '9029': ['CS', '1', 'OversamplingPhase'],\n '9030': ['FD', '1', 'TagSpacingFirstDimension'],\n '9032': ['CS', '1', 'GeometryOfKSpaceTraversal'],\n '9033': ['CS', '1', 'SegmentedKSpaceTraversal'],\n '9034': ['CS', '1', 'RectilinearPhaseEncodeReordering'],\n '9035': ['FD', '1', 'TagThickness'],\n '9036': ['CS', '1', 'PartialFourierDirection'],\n '9037': ['CS', '1', 'CardiacSynchronizationTechnique'],\n '9041': ['LO', '1', 'ReceiveCoilManufacturerName'],\n '9042': ['SQ', '1', 'MRReceiveCoilSequence'],\n '9043': ['CS', '1', 'ReceiveCoilType'],\n '9044': ['CS', '1', 'QuadratureReceiveCoil'],\n '9045': ['SQ', '1', 'MultiCoilDefinitionSequence'],\n '9046': ['LO', '1', 'MultiCoilConfiguration'],\n '9047': ['SH', '1', 'MultiCoilElementName'],\n '9048': ['CS', '1', 'MultiCoilElementUsed'],\n '9049': ['SQ', '1', 'MRTransmitCoilSequence'],\n '9050': ['LO', '1', 'TransmitCoilManufacturerName'],\n '9051': ['CS', '1', 'TransmitCoilType'],\n '9052': ['FD', '1-2', 'SpectralWidth'],\n '9053': ['FD', '1-2', 'ChemicalShiftReference'],\n '9054': ['CS', '1', 'VolumeLocalizationTechnique'],\n '9058': ['US', '1', 'MRAcquisitionFrequencyEncodingSteps'],\n '9059': ['CS', '1', 'Decoupling'],\n '9060': ['CS', '1-2', 'DecoupledNucleus'],\n '9061': ['FD', '1-2', 'DecouplingFrequency'],\n '9062': ['CS', '1', 'DecouplingMethod'],\n '9063': ['FD', '1-2', 'DecouplingChemicalShiftReference'],\n '9064': ['CS', '1', 'KSpaceFiltering'],\n '9065': ['CS', '1-2', 'TimeDomainFiltering'],\n '9066': ['US', '1-2', 'NumberOfZeroFills'],\n '9067': ['CS', '1', 'BaselineCorrection'],\n '9069': ['FD', '1', 'ParallelReductionFactorInPlane'],\n '9070': ['FD', '1', 'CardiacRRIntervalSpecified'],\n '9073': ['FD', '1', 'AcquisitionDuration'],\n '9074': ['DT', '1', 'FrameAcquisitionDateTime'],\n '9075': ['CS', '1', 'DiffusionDirectionality'],\n '9076': ['SQ', '1', 'DiffusionGradientDirectionSequence'],\n '9077': ['CS', '1', 'ParallelAcquisition'],\n '9078': ['CS', '1', 'ParallelAcquisitionTechnique'],\n '9079': ['FD', '1-n', 'InversionTimes'],\n '9080': ['ST', '1', 'MetaboliteMapDescription'],\n '9081': ['CS', '1', 'PartialFourier'],\n '9082': ['FD', '1', 'EffectiveEchoTime'],\n '9083': ['SQ', '1', 'MetaboliteMapCodeSequence'],\n '9084': ['SQ', '1', 'ChemicalShiftSequence'],\n '9085': ['CS', '1', 'CardiacSignalSource'],\n '9087': ['FD', '1', 'DiffusionBValue'],\n '9089': ['FD', '3', 'DiffusionGradientOrientation'],\n '9090': ['FD', '3', 'VelocityEncodingDirection'],\n '9091': ['FD', '1', 'VelocityEncodingMinimumValue'],\n '9092': ['SQ', '1', 'VelocityEncodingAcquisitionSequence'],\n '9093': ['US', '1', 'NumberOfKSpaceTrajectories'],\n '9094': ['CS', '1', 'CoverageOfKSpace'],\n '9095': ['UL', '1', 'SpectroscopyAcquisitionPhaseRows'],\n '9096': ['FD', '1', 'ParallelReductionFactorInPlaneRetired'],\n '9098': ['FD', '1-2', 'TransmitterFrequency'],\n '9100': ['CS', '1-2', 'ResonantNucleus'],\n '9101': ['CS', '1', 'FrequencyCorrection'],\n '9103': ['SQ', '1', 'MRSpectroscopyFOVGeometrySequence'],\n '9104': ['FD', '1', 'SlabThickness'],\n '9105': ['FD', '3', 'SlabOrientation'],\n '9106': ['FD', '3', 'MidSlabPosition'],\n '9107': ['SQ', '1', 'MRSpatialSaturationSequence'],\n '9112': ['SQ', '1', 'MRTimingAndRelatedParametersSequence'],\n '9114': ['SQ', '1', 'MREchoSequence'],\n '9115': ['SQ', '1', 'MRModifierSequence'],\n '9117': ['SQ', '1', 'MRDiffusionSequence'],\n '9118': ['SQ', '1', 'CardiacSynchronizationSequence'],\n '9119': ['SQ', '1', 'MRAveragesSequence'],\n '9125': ['SQ', '1', 'MRFOVGeometrySequence'],\n '9126': ['SQ', '1', 'VolumeLocalizationSequence'],\n '9127': ['UL', '1', 'SpectroscopyAcquisitionDataColumns'],\n '9147': ['CS', '1', 'DiffusionAnisotropyType'],\n '9151': ['DT', '1', 'FrameReferenceDateTime'],\n '9152': ['SQ', '1', 'MRMetaboliteMapSequence'],\n '9155': ['FD', '1', 'ParallelReductionFactorOutOfPlane'],\n '9159': ['UL', '1', 'SpectroscopyAcquisitionOutOfPlanePhaseSteps'],\n '9166': ['CS', '1', 'BulkMotionStatus'],\n '9168': ['FD', '1', 'ParallelReductionFactorSecondInPlane'],\n '9169': ['CS', '1', 'CardiacBeatRejectionTechnique'],\n '9170': ['CS', '1', 'RespiratoryMotionCompensationTechnique'],\n '9171': ['CS', '1', 'RespiratorySignalSource'],\n '9172': ['CS', '1', 'BulkMotionCompensationTechnique'],\n '9173': ['CS', '1', 'BulkMotionSignalSource'],\n '9174': ['CS', '1', 'ApplicableSafetyStandardAgency'],\n '9175': ['LO', '1', 'ApplicableSafetyStandardDescription'],\n '9176': ['SQ', '1', 'OperatingModeSequence'],\n '9177': ['CS', '1', 'OperatingModeType'],\n '9178': ['CS', '1', 'OperatingMode'],\n '9179': ['CS', '1', 'SpecificAbsorptionRateDefinition'],\n '9180': ['CS', '1', 'GradientOutputType'],\n '9181': ['FD', '1', 'SpecificAbsorptionRateValue'],\n '9182': ['FD', '1', 'GradientOutput'],\n '9183': ['CS', '1', 'FlowCompensationDirection'],\n '9184': ['FD', '1', 'TaggingDelay'],\n '9185': ['ST', '1', 'RespiratoryMotionCompensationTechniqueDescription'],\n '9186': ['SH', '1', 'RespiratorySignalSourceID'],\n '9195': ['FD', '1', 'ChemicalShiftMinimumIntegrationLimitInHz'],\n '9196': ['FD', '1', 'ChemicalShiftMaximumIntegrationLimitInHz'],\n '9197': ['SQ', '1', 'MRVelocityEncodingSequence'],\n '9198': ['CS', '1', 'FirstOrderPhaseCorrection'],\n '9199': ['CS', '1', 'WaterReferencedPhaseCorrection'],\n '9200': ['CS', '1', 'MRSpectroscopyAcquisitionType'],\n '9214': ['CS', '1', 'RespiratoryCyclePosition'],\n '9217': ['FD', '1', 'VelocityEncodingMaximumValue'],\n '9218': ['FD', '1', 'TagSpacingSecondDimension'],\n '9219': ['SS', '1', 'TagAngleSecondAxis'],\n '9220': ['FD', '1', 'FrameAcquisitionDuration'],\n '9226': ['SQ', '1', 'MRImageFrameTypeSequence'],\n '9227': ['SQ', '1', 'MRSpectroscopyFrameTypeSequence'],\n '9231': ['US', '1', 'MRAcquisitionPhaseEncodingStepsInPlane'],\n '9232': ['US', '1', 'MRAcquisitionPhaseEncodingStepsOutOfPlane'],\n '9234': ['UL', '1', 'SpectroscopyAcquisitionPhaseColumns'],\n '9236': ['CS', '1', 'CardiacCyclePosition'],\n '9239': ['SQ', '1', 'SpecificAbsorptionRateSequence'],\n '9240': ['US', '1', 'RFEchoTrainLength'],\n '9241': ['US', '1', 'GradientEchoTrainLength'],\n '9250': ['CS', '1', 'ArterialSpinLabelingContrast'],\n '9251': ['SQ', '1', 'MRArterialSpinLabelingSequence'],\n '9252': ['LO', '1', 'ASLTechniqueDescription'],\n '9253': ['US', '1', 'ASLSlabNumber'],\n '9254': ['FD', '1', 'ASLSlabThickness'],\n '9255': ['FD', '3', 'ASLSlabOrientation'],\n '9256': ['FD', '3', 'ASLMidSlabPosition'],\n '9257': ['CS', '1', 'ASLContext'],\n '9258': ['UL', '1', 'ASLPulseTrainDuration'],\n '9259': ['CS', '1', 'ASLCrusherFlag'],\n '925A': ['FD', '1', 'ASLCrusherFlowLimit'],\n '925B': ['LO', '1', 'ASLCrusherDescription'],\n '925C': ['CS', '1', 'ASLBolusCutoffFlag'],\n '925D': ['SQ', '1', 'ASLBolusCutoffTimingSequence'],\n '925E': ['LO', '1', 'ASLBolusCutoffTechnique'],\n '925F': ['UL', '1', 'ASLBolusCutoffDelayTime'],\n '9260': ['SQ', '1', 'ASLSlabSequence'],\n '9295': ['FD', '1', 'ChemicalShiftMinimumIntegrationLimitInppm'],\n '9296': ['FD', '1', 'ChemicalShiftMaximumIntegrationLimitInppm'],\n '9297': ['CS', '1', 'WaterReferenceAcquisition'],\n '9298': ['IS', '1', 'EchoPeakPosition'],\n '9301': ['SQ', '1', 'CTAcquisitionTypeSequence'],\n '9302': ['CS', '1', 'AcquisitionType'],\n '9303': ['FD', '1', 'TubeAngle'],\n '9304': ['SQ', '1', 'CTAcquisitionDetailsSequence'],\n '9305': ['FD', '1', 'RevolutionTime'],\n '9306': ['FD', '1', 'SingleCollimationWidth'],\n '9307': ['FD', '1', 'TotalCollimationWidth'],\n '9308': ['SQ', '1', 'CTTableDynamicsSequence'],\n '9309': ['FD', '1', 'TableSpeed'],\n '9310': ['FD', '1', 'TableFeedPerRotation'],\n '9311': ['FD', '1', 'SpiralPitchFactor'],\n '9312': ['SQ', '1', 'CTGeometrySequence'],\n '9313': ['FD', '3', 'DataCollectionCenterPatient'],\n '9314': ['SQ', '1', 'CTReconstructionSequence'],\n '9315': ['CS', '1', 'ReconstructionAlgorithm'],\n '9316': ['CS', '1', 'ConvolutionKernelGroup'],\n '9317': ['FD', '2', 'ReconstructionFieldOfView'],\n '9318': ['FD', '3', 'ReconstructionTargetCenterPatient'],\n '9319': ['FD', '1', 'ReconstructionAngle'],\n '9320': ['SH', '1', 'ImageFilter'],\n '9321': ['SQ', '1', 'CTExposureSequence'],\n '9322': ['FD', '2', 'ReconstructionPixelSpacing'],\n '9323': ['CS', '1-n', 'ExposureModulationType'],\n '9324': ['FD', '1', 'EstimatedDoseSaving'],\n '9325': ['SQ', '1', 'CTXRayDetailsSequence'],\n '9326': ['SQ', '1', 'CTPositionSequence'],\n '9327': ['FD', '1', 'TablePosition'],\n '9328': ['FD', '1', 'ExposureTimeInms'],\n '9329': ['SQ', '1', 'CTImageFrameTypeSequence'],\n '9330': ['FD', '1', 'XRayTubeCurrentInmA'],\n '9332': ['FD', '1', 'ExposureInmAs'],\n '9333': ['CS', '1', 'ConstantVolumeFlag'],\n '9334': ['CS', '1', 'FluoroscopyFlag'],\n '9335': ['FD', '1', 'DistanceSourceToDataCollectionCenter'],\n '9337': ['US', '1', 'ContrastBolusAgentNumber'],\n '9338': ['SQ', '1', 'ContrastBolusIngredientCodeSequence'],\n '9340': ['SQ', '1', 'ContrastAdministrationProfileSequence'],\n '9341': ['SQ', '1', 'ContrastBolusUsageSequence'],\n '9342': ['CS', '1', 'ContrastBolusAgentAdministered'],\n '9343': ['CS', '1', 'ContrastBolusAgentDetected'],\n '9344': ['CS', '1', 'ContrastBolusAgentPhase'],\n '9345': ['FD', '1', 'CTDIvol'],\n '9346': ['SQ', '1', 'CTDIPhantomTypeCodeSequence'],\n '9351': ['FL', '1', 'CalciumScoringMassFactorPatient'],\n '9352': ['FL', '3', 'CalciumScoringMassFactorDevice'],\n '9353': ['FL', '1', 'EnergyWeightingFactor'],\n '9360': ['SQ', '1', 'CTAdditionalXRaySourceSequence'],\n '9361': ['CS', '1', 'MultienergyCTAcquisition'],\n '9362': ['SQ', '1', 'MultienergyCTAcquisitionSequence'],\n '9363': ['SQ', '1', 'MultienergyCTProcessingSequence'],\n '9364': ['SQ', '1', 'MultienergyCTCharacteristicsSequence'],\n '9365': ['SQ', '1', 'MultienergyCTXRaySourceSequence'],\n '9366': ['US', '1', 'XRaySourceIndex'],\n '9367': ['UC', '1', 'XRaySourceID'],\n '9368': ['CS', '1', 'MultienergySourceTechnique'],\n '9369': ['DT', '1', 'SourceStartDateTime'],\n '936A': ['DT', '1', 'SourceEndDateTime'],\n '936B': ['US', '1', 'SwitchingPhaseNumber'],\n '936C': ['DS', '1', 'SwitchingPhaseNominalDuration'],\n '936D': ['DS', '1', 'SwitchingPhaseTransitionDuration'],\n '936E': ['DS', '1', 'EffectiveBinEnergy'],\n '936F': ['SQ', '1', 'MultienergyCTXRayDetectorSequence'],\n '9370': ['US', '1', 'XRayDetectorIndex'],\n '9371': ['UC', '1', 'XRayDetectorID'],\n '9372': ['CS', '1', 'MultienergyDetectorType'],\n '9373': ['ST', '1', 'XRayDetectorLabel'],\n '9374': ['DS', '1', 'NominalMaxEnergy'],\n '9375': ['DS', '1', 'NominalMinEnergy'],\n '9376': ['US', '1-n', 'ReferencedXRayDetectorIndex'],\n '9377': ['US', '1-n', 'ReferencedXRaySourceIndex'],\n '9378': ['US', '1-n', 'ReferencedPathIndex'],\n '9379': ['SQ', '1', 'MultienergyCTPathSequence'],\n '937A': ['US', '1', 'MultienergyCTPathIndex'],\n '937B': ['UT', '1', 'MultienergyAcquisitionDescription'],\n '937C': ['FD', '1', 'MonoenergeticEnergyEquivalent'],\n '937D': ['SQ', '1', 'MaterialCodeSequence'],\n '937E': ['CS', '1', 'DecompositionMethod'],\n '937F': ['UT', '1', 'DecompositionDescription'],\n '9380': ['SQ', '1', 'DecompositionAlgorithmIdentificationSequence'],\n '9381': ['SQ', '1', 'DecompositionMaterialSequence'],\n '9382': ['SQ', '1', 'MaterialAttenuationSequence'],\n '9383': ['DS', '1', 'PhotonEnergy'],\n '9384': ['DS', '1', 'XRayMassAttenuationCoefficient'],\n '9401': ['SQ', '1', 'ProjectionPixelCalibrationSequence'],\n '9402': ['FL', '1', 'DistanceSourceToIsocenter'],\n '9403': ['FL', '1', 'DistanceObjectToTableTop'],\n '9404': ['FL', '2', 'ObjectPixelSpacingInCenterOfBeam'],\n '9405': ['SQ', '1', 'PositionerPositionSequence'],\n '9406': ['SQ', '1', 'TablePositionSequence'],\n '9407': ['SQ', '1', 'CollimatorShapeSequence'],\n '9410': ['CS', '1', 'PlanesInAcquisition'],\n '9412': ['SQ', '1', 'XAXRFFrameCharacteristicsSequence'],\n '9417': ['SQ', '1', 'FrameAcquisitionSequence'],\n '9420': ['CS', '1', 'XRayReceptorType'],\n '9423': ['LO', '1', 'AcquisitionProtocolName'],\n '9424': ['LT', '1', 'AcquisitionProtocolDescription'],\n '9425': ['CS', '1', 'ContrastBolusIngredientOpaque'],\n '9426': ['FL', '1', 'DistanceReceptorPlaneToDetectorHousing'],\n '9427': ['CS', '1', 'IntensifierActiveShape'],\n '9428': ['FL', '1-2', 'IntensifierActiveDimensions'],\n '9429': ['FL', '2', 'PhysicalDetectorSize'],\n '9430': ['FL', '2', 'PositionOfIsocenterProjection'],\n '9432': ['SQ', '1', 'FieldOfViewSequence'],\n '9433': ['LO', '1', 'FieldOfViewDescription'],\n '9434': ['SQ', '1', 'ExposureControlSensingRegionsSequence'],\n '9435': ['CS', '1', 'ExposureControlSensingRegionShape'],\n '9436': ['SS', '1', 'ExposureControlSensingRegionLeftVerticalEdge'],\n '9437': ['SS', '1', 'ExposureControlSensingRegionRightVerticalEdge'],\n '9438': ['SS', '1', 'ExposureControlSensingRegionUpperHorizontalEdge'],\n '9439': ['SS', '1', 'ExposureControlSensingRegionLowerHorizontalEdge'],\n '9440': ['SS', '2', 'CenterOfCircularExposureControlSensingRegion'],\n '9441': ['US', '1', 'RadiusOfCircularExposureControlSensingRegion'],\n '9442': ['SS', '2-n', 'VerticesOfThePolygonalExposureControlSensingRegion'],\n '9445': ['', '', ''],\n '9447': ['FL', '1', 'ColumnAngulationPatient'],\n '9449': ['FL', '1', 'BeamAngle'],\n '9451': ['SQ', '1', 'FrameDetectorParametersSequence'],\n '9452': ['FL', '1', 'CalculatedAnatomyThickness'],\n '9455': ['SQ', '1', 'CalibrationSequence'],\n '9456': ['SQ', '1', 'ObjectThicknessSequence'],\n '9457': ['CS', '1', 'PlaneIdentification'],\n '9461': ['FL', '1-2', 'FieldOfViewDimensionsInFloat'],\n '9462': ['SQ', '1', 'IsocenterReferenceSystemSequence'],\n '9463': ['FL', '1', 'PositionerIsocenterPrimaryAngle'],\n '9464': ['FL', '1', 'PositionerIsocenterSecondaryAngle'],\n '9465': ['FL', '1', 'PositionerIsocenterDetectorRotationAngle'],\n '9466': ['FL', '1', 'TableXPositionToIsocenter'],\n '9467': ['FL', '1', 'TableYPositionToIsocenter'],\n '9468': ['FL', '1', 'TableZPositionToIsocenter'],\n '9469': ['FL', '1', 'TableHorizontalRotationAngle'],\n '9470': ['FL', '1', 'TableHeadTiltAngle'],\n '9471': ['FL', '1', 'TableCradleTiltAngle'],\n '9472': ['SQ', '1', 'FrameDisplayShutterSequence'],\n '9473': ['FL', '1', 'AcquiredImageAreaDoseProduct'],\n '9474': ['CS', '1', 'CArmPositionerTabletopRelationship'],\n '9476': ['SQ', '1', 'XRayGeometrySequence'],\n '9477': ['SQ', '1', 'IrradiationEventIdentificationSequence'],\n '9504': ['SQ', '1', 'XRay3DFrameTypeSequence'],\n '9506': ['SQ', '1', 'ContributingSourcesSequence'],\n '9507': ['SQ', '1', 'XRay3DAcquisitionSequence'],\n '9508': ['FL', '1', 'PrimaryPositionerScanArc'],\n '9509': ['FL', '1', 'SecondaryPositionerScanArc'],\n '9510': ['FL', '1', 'PrimaryPositionerScanStartAngle'],\n '9511': ['FL', '1', 'SecondaryPositionerScanStartAngle'],\n '9514': ['FL', '1', 'PrimaryPositionerIncrement'],\n '9515': ['FL', '1', 'SecondaryPositionerIncrement'],\n '9516': ['DT', '1', 'StartAcquisitionDateTime'],\n '9517': ['DT', '1', 'EndAcquisitionDateTime'],\n '9518': ['SS', '1', 'PrimaryPositionerIncrementSign'],\n '9519': ['SS', '1', 'SecondaryPositionerIncrementSign'],\n '9524': ['LO', '1', 'ApplicationName'],\n '9525': ['LO', '1', 'ApplicationVersion'],\n '9526': ['LO', '1', 'ApplicationManufacturer'],\n '9527': ['CS', '1', 'AlgorithmType'],\n '9528': ['LO', '1', 'AlgorithmDescription'],\n '9530': ['SQ', '1', 'XRay3DReconstructionSequence'],\n '9531': ['LO', '1', 'ReconstructionDescription'],\n '9538': ['SQ', '1', 'PerProjectionAcquisitionSequence'],\n '9541': ['SQ', '1', 'DetectorPositionSequence'],\n '9542': ['SQ', '1', 'XRayAcquisitionDoseSequence'],\n '9543': ['FD', '1', 'XRaySourceIsocenterPrimaryAngle'],\n '9544': ['FD', '1', 'XRaySourceIsocenterSecondaryAngle'],\n '9545': ['FD', '1', 'BreastSupportIsocenterPrimaryAngle'],\n '9546': ['FD', '1', 'BreastSupportIsocenterSecondaryAngle'],\n '9547': ['FD', '1', 'BreastSupportXPositionToIsocenter'],\n '9548': ['FD', '1', 'BreastSupportYPositionToIsocenter'],\n '9549': ['FD', '1', 'BreastSupportZPositionToIsocenter'],\n '9550': ['FD', '1', 'DetectorIsocenterPrimaryAngle'],\n '9551': ['FD', '1', 'DetectorIsocenterSecondaryAngle'],\n '9552': ['FD', '1', 'DetectorXPositionToIsocenter'],\n '9553': ['FD', '1', 'DetectorYPositionToIsocenter'],\n '9554': ['FD', '1', 'DetectorZPositionToIsocenter'],\n '9555': ['SQ', '1', 'XRayGridSequence'],\n '9556': ['SQ', '1', 'XRayFilterSequence'],\n '9557': ['FD', '3', 'DetectorActiveAreaTLHCPosition'],\n '9558': ['FD', '6', 'DetectorActiveAreaOrientation'],\n '9559': ['CS', '1', 'PositionerPrimaryAngleDirection'],\n '9601': ['SQ', '1', 'DiffusionBMatrixSequence'],\n '9602': ['FD', '1', 'DiffusionBValueXX'],\n '9603': ['FD', '1', 'DiffusionBValueXY'],\n '9604': ['FD', '1', 'DiffusionBValueXZ'],\n '9605': ['FD', '1', 'DiffusionBValueYY'],\n '9606': ['FD', '1', 'DiffusionBValueYZ'],\n '9607': ['FD', '1', 'DiffusionBValueZZ'],\n '9621': ['SQ', '1', 'FunctionalMRSequence'],\n '9622': ['CS', '1', 'FunctionalSettlingPhaseFramesPresent'],\n '9623': ['DT', '1', 'FunctionalSyncPulse'],\n '9624': ['CS', '1', 'SettlingPhaseFrame'],\n '9701': ['DT', '1', 'DecayCorrectionDateTime'],\n '9715': ['FD', '1', 'StartDensityThreshold'],\n '9716': ['FD', '1', 'StartRelativeDensityDifferenceThreshold'],\n '9717': ['FD', '1', 'StartCardiacTriggerCountThreshold'],\n '9718': ['FD', '1', 'StartRespiratoryTriggerCountThreshold'],\n '9719': ['FD', '1', 'TerminationCountsThreshold'],\n '9720': ['FD', '1', 'TerminationDensityThreshold'],\n '9721': ['FD', '1', 'TerminationRelativeDensityThreshold'],\n '9722': ['FD', '1', 'TerminationTimeThreshold'],\n '9723': ['FD', '1', 'TerminationCardiacTriggerCountThreshold'],\n '9724': ['FD', '1', 'TerminationRespiratoryTriggerCountThreshold'],\n '9725': ['CS', '1', 'DetectorGeometry'],\n '9726': ['FD', '1', 'TransverseDetectorSeparation'],\n '9727': ['FD', '1', 'AxialDetectorDimension'],\n '9729': ['US', '1', 'RadiopharmaceuticalAgentNumber'],\n '9732': ['SQ', '1', 'PETFrameAcquisitionSequence'],\n '9733': ['SQ', '1', 'PETDetectorMotionDetailsSequence'],\n '9734': ['SQ', '1', 'PETTableDynamicsSequence'],\n '9735': ['SQ', '1', 'PETPositionSequence'],\n '9736': ['SQ', '1', 'PETFrameCorrectionFactorsSequence'],\n '9737': ['SQ', '1', 'RadiopharmaceuticalUsageSequence'],\n '9738': ['CS', '1', 'AttenuationCorrectionSource'],\n '9739': ['US', '1', 'NumberOfIterations'],\n '9740': ['US', '1', 'NumberOfSubsets'],\n '9749': ['SQ', '1', 'PETReconstructionSequence'],\n '9751': ['SQ', '1', 'PETFrameTypeSequence'],\n '9755': ['CS', '1', 'TimeOfFlightInformationUsed'],\n '9756': ['CS', '1', 'ReconstructionType'],\n '9758': ['CS', '1', 'DecayCorrected'],\n '9759': ['CS', '1', 'AttenuationCorrected'],\n '9760': ['CS', '1', 'ScatterCorrected'],\n '9761': ['CS', '1', 'DeadTimeCorrected'],\n '9762': ['CS', '1', 'GantryMotionCorrected'],\n '9763': ['CS', '1', 'PatientMotionCorrected'],\n '9764': ['CS', '1', 'CountLossNormalizationCorrected'],\n '9765': ['CS', '1', 'RandomsCorrected'],\n '9766': ['CS', '1', 'NonUniformRadialSamplingCorrected'],\n '9767': ['CS', '1', 'SensitivityCalibrated'],\n '9768': ['CS', '1', 'DetectorNormalizationCorrection'],\n '9769': ['CS', '1', 'IterativeReconstructionMethod'],\n '9770': ['CS', '1', 'AttenuationCorrectionTemporalRelationship'],\n '9771': ['SQ', '1', 'PatientPhysiologicalStateSequence'],\n '9772': ['SQ', '1', 'PatientPhysiologicalStateCodeSequence'],\n '9801': ['FD', '1-n', 'DepthsOfFocus'],\n '9803': ['SQ', '1', 'ExcludedIntervalsSequence'],\n '9804': ['DT', '1', 'ExclusionStartDateTime'],\n '9805': ['FD', '1', 'ExclusionDuration'],\n '9806': ['SQ', '1', 'USImageDescriptionSequence'],\n '9807': ['SQ', '1', 'ImageDataTypeSequence'],\n '9808': ['CS', '1', 'DataType'],\n '9809': ['SQ', '1', 'TransducerScanPatternCodeSequence'],\n '980B': ['CS', '1', 'AliasedDataType'],\n '980C': ['CS', '1', 'PositionMeasuringDeviceUsed'],\n '980D': ['SQ', '1', 'TransducerGeometryCodeSequence'],\n '980E': ['SQ', '1', 'TransducerBeamSteeringCodeSequence'],\n '980F': ['SQ', '1', 'TransducerApplicationCodeSequence'],\n '9810': ['xs', '1', 'ZeroVelocityPixelValue'],\n '9900': ['LO', '1', 'ReferenceLocationLabel'],\n '9901': ['UT', '1', 'ReferenceLocationDescription'],\n '9902': ['SQ', '1', 'ReferenceBasisCodeSequence'],\n '9903': ['SQ', '1', 'ReferenceGeometryCodeSequence'],\n '9904': ['DS', '1', 'OffsetDistance'],\n '9905': ['CS', '1', 'OffsetDirection'],\n '9906': ['SQ', '1', 'PotentialScheduledProtocolCodeSequence'],\n '9907': ['SQ', '1', 'PotentialRequestedProcedureCodeSequence'],\n '9908': ['UC', '1-n', 'PotentialReasonsForProcedure'],\n '9909': ['SQ', '1', 'PotentialReasonsForProcedureCodeSequence'],\n '990A': ['UC', '1-n', 'PotentialDiagnosticTasks'],\n '990B': ['SQ', '1', 'ContraindicationsCodeSequence'],\n '990C': ['SQ', '1', 'ReferencedDefinedProtocolSequence'],\n '990D': ['SQ', '1', 'ReferencedPerformedProtocolSequence'],\n '990E': ['SQ', '1', 'PredecessorProtocolSequence'],\n '990F': ['UT', '1', 'ProtocolPlanningInformation'],\n '9910': ['UT', '1', 'ProtocolDesignRationale'],\n '9911': ['SQ', '1', 'PatientSpecificationSequence'],\n '9912': ['SQ', '1', 'ModelSpecificationSequence'],\n '9913': ['SQ', '1', 'ParametersSpecificationSequence'],\n '9914': ['SQ', '1', 'InstructionSequence'],\n '9915': ['US', '1', 'InstructionIndex'],\n '9916': ['LO', '1', 'InstructionText'],\n '9917': ['UT', '1', 'InstructionDescription'],\n '9918': ['CS', '1', 'InstructionPerformedFlag'],\n '9919': ['DT', '1', 'InstructionPerformedDateTime'],\n '991A': ['UT', '1', 'InstructionPerformanceComment'],\n '991B': ['SQ', '1', 'PatientPositioningInstructionSequence'],\n '991C': ['SQ', '1', 'PositioningMethodCodeSequence'],\n '991D': ['SQ', '1', 'PositioningLandmarkSequence'],\n '991E': ['UI', '1', 'TargetFrameOfReferenceUID'],\n '991F': ['SQ', '1', 'AcquisitionProtocolElementSpecificationSequence'],\n '9920': ['SQ', '1', 'AcquisitionProtocolElementSequence'],\n '9921': ['US', '1', 'ProtocolElementNumber'],\n '9922': ['LO', '1', 'ProtocolElementName'],\n '9923': ['UT', '1', 'ProtocolElementCharacteristicsSummary'],\n '9924': ['UT', '1', 'ProtocolElementPurpose'],\n '9930': ['CS', '1', 'AcquisitionMotion'],\n '9931': ['SQ', '1', 'AcquisitionStartLocationSequence'],\n '9932': ['SQ', '1', 'AcquisitionEndLocationSequence'],\n '9933': ['SQ', '1', 'ReconstructionProtocolElementSpecificationSequence'],\n '9934': ['SQ', '1', 'ReconstructionProtocolElementSequence'],\n '9935': ['SQ', '1', 'StorageProtocolElementSpecificationSequence'],\n '9936': ['SQ', '1', 'StorageProtocolElementSequence'],\n '9937': ['LO', '1', 'RequestedSeriesDescription'],\n '9938': ['US', '1-n', 'SourceAcquisitionProtocolElementNumber'],\n '9939': ['US', '1-n', 'SourceAcquisitionBeamNumber'],\n '993A': ['US', '1-n', 'SourceReconstructionProtocolElementNumber'],\n '993B': ['SQ', '1', 'ReconstructionStartLocationSequence'],\n '993C': ['SQ', '1', 'ReconstructionEndLocationSequence'],\n '993D': ['SQ', '1', 'ReconstructionAlgorithmSequence'],\n '993E': ['SQ', '1', 'ReconstructionTargetCenterLocationSequence'],\n '9941': ['UT', '1', 'ImageFilterDescription'],\n '9942': ['FD', '1', 'CTDIvolNotificationTrigger'],\n '9943': ['FD', '1', 'DLPNotificationTrigger'],\n '9944': ['CS', '1', 'AutoKVPSelectionType'],\n '9945': ['FD', '1', 'AutoKVPUpperBound'],\n '9946': ['FD', '1', 'AutoKVPLowerBound'],\n '9947': ['CS', '1', 'ProtocolDefinedPatientPosition'],\n 'A001': ['SQ', '1', 'ContributingEquipmentSequence'],\n 'A002': ['DT', '1', 'ContributionDateTime'],\n 'A003': ['ST', '1', 'ContributionDescription']\n },\n '0020': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '000D': ['UI', '1', 'StudyInstanceUID'],\n '000E': ['UI', '1', 'SeriesInstanceUID'],\n '0010': ['SH', '1', 'StudyID'],\n '0011': ['IS', '1', 'SeriesNumber'],\n '0012': ['IS', '1', 'AcquisitionNumber'],\n '0013': ['IS', '1', 'InstanceNumber'],\n '0014': ['IS', '1', 'IsotopeNumber'],\n '0015': ['IS', '1', 'PhaseNumber'],\n '0016': ['IS', '1', 'IntervalNumber'],\n '0017': ['IS', '1', 'TimeSlotNumber'],\n '0018': ['IS', '1', 'AngleNumber'],\n '0019': ['IS', '1', 'ItemNumber'],\n '0020': ['CS', '2', 'PatientOrientation'],\n '0022': ['IS', '1', 'OverlayNumber'],\n '0024': ['IS', '1', 'CurveNumber'],\n '0026': ['IS', '1', 'LUTNumber'],\n '0030': ['DS', '3', 'ImagePosition'],\n '0032': ['DS', '3', 'ImagePositionPatient'],\n '0035': ['DS', '6', 'ImageOrientation'],\n '0037': ['DS', '6', 'ImageOrientationPatient'],\n '0050': ['DS', '1', 'Location'],\n '0052': ['UI', '1', 'FrameOfReferenceUID'],\n '0060': ['CS', '1', 'Laterality'],\n '0062': ['CS', '1', 'ImageLaterality'],\n '0070': ['LO', '1', 'ImageGeometryType'],\n '0080': ['CS', '1-n', 'MaskingImage'],\n '00AA': ['IS', '1', 'ReportNumber'],\n '0100': ['IS', '1', 'TemporalPositionIdentifier'],\n '0105': ['IS', '1', 'NumberOfTemporalPositions'],\n '0110': ['DS', '1', 'TemporalResolution'],\n '0200': ['UI', '1', 'SynchronizationFrameOfReferenceUID'],\n '0242': ['UI', '1', 'SOPInstanceUIDOfConcatenationSource'],\n '1000': ['IS', '1', 'SeriesInStudy'],\n '1001': ['IS', '1', 'AcquisitionsInSeries'],\n '1002': ['IS', '1', 'ImagesInAcquisition'],\n '1003': ['IS', '1', 'ImagesInSeries'],\n '1004': ['IS', '1', 'AcquisitionsInStudy'],\n '1005': ['IS', '1', 'ImagesInStudy'],\n '1020': ['LO', '1-n', 'Reference'],\n '103F': ['LO', '1', 'TargetPositionReferenceIndicator'],\n '1040': ['LO', '1', 'PositionReferenceIndicator'],\n '1041': ['DS', '1', 'SliceLocation'],\n '1070': ['IS', '1-n', 'OtherStudyNumbers'],\n '1200': ['IS', '1', 'NumberOfPatientRelatedStudies'],\n '1202': ['IS', '1', 'NumberOfPatientRelatedSeries'],\n '1204': ['IS', '1', 'NumberOfPatientRelatedInstances'],\n '1206': ['IS', '1', 'NumberOfStudyRelatedSeries'],\n '1208': ['IS', '1', 'NumberOfStudyRelatedInstances'],\n '1209': ['IS', '1', 'NumberOfSeriesRelatedInstances'],\n '3100': ['CS', '1-n', 'SourceImageIDs'],\n '3401': ['CS', '1', 'ModifyingDeviceID'],\n '3402': ['CS', '1', 'ModifiedImageID'],\n '3403': ['DA', '1', 'ModifiedImageDate'],\n '3404': ['LO', '1', 'ModifyingDeviceManufacturer'],\n '3405': ['TM', '1', 'ModifiedImageTime'],\n '3406': ['LO', '1', 'ModifiedImageDescription'],\n '4000': ['LT', '1', 'ImageComments'],\n '5000': ['AT', '1-n', 'OriginalImageIdentification'],\n '5002': ['LO', '1-n', 'OriginalImageIdentificationNomenclature'],\n '9056': ['SH', '1', 'StackID'],\n '9057': ['UL', '1', 'InStackPositionNumber'],\n '9071': ['SQ', '1', 'FrameAnatomySequence'],\n '9072': ['CS', '1', 'FrameLaterality'],\n '9111': ['SQ', '1', 'FrameContentSequence'],\n '9113': ['SQ', '1', 'PlanePositionSequence'],\n '9116': ['SQ', '1', 'PlaneOrientationSequence'],\n '9128': ['UL', '1', 'TemporalPositionIndex'],\n '9153': ['FD', '1', 'NominalCardiacTriggerDelayTime'],\n '9154': ['FL', '1', 'NominalCardiacTriggerTimePriorToRPeak'],\n '9155': ['FL', '1', 'ActualCardiacTriggerTimePriorToRPeak'],\n '9156': ['US', '1', 'FrameAcquisitionNumber'],\n '9157': ['UL', '1-n', 'DimensionIndexValues'],\n '9158': ['LT', '1', 'FrameComments'],\n '9161': ['UI', '1', 'ConcatenationUID'],\n '9162': ['US', '1', 'InConcatenationNumber'],\n '9163': ['US', '1', 'InConcatenationTotalNumber'],\n '9164': ['UI', '1', 'DimensionOrganizationUID'],\n '9165': ['AT', '1', 'DimensionIndexPointer'],\n '9167': ['AT', '1', 'FunctionalGroupPointer'],\n '9170': ['SQ', '1', 'UnassignedSharedConvertedAttributesSequence'],\n '9171': ['SQ', '1', 'UnassignedPerFrameConvertedAttributesSequence'],\n '9172': ['SQ', '1', 'ConversionSourceAttributesSequence'],\n '9213': ['LO', '1', 'DimensionIndexPrivateCreator'],\n '9221': ['SQ', '1', 'DimensionOrganizationSequence'],\n '9222': ['SQ', '1', 'DimensionIndexSequence'],\n '9228': ['UL', '1', 'ConcatenationFrameOffsetNumber'],\n '9238': ['LO', '1', 'FunctionalGroupPrivateCreator'],\n '9241': ['FL', '1', 'NominalPercentageOfCardiacPhase'],\n '9245': ['FL', '1', 'NominalPercentageOfRespiratoryPhase'],\n '9246': ['FL', '1', 'StartingRespiratoryAmplitude'],\n '9247': ['CS', '1', 'StartingRespiratoryPhase'],\n '9248': ['FL', '1', 'EndingRespiratoryAmplitude'],\n '9249': ['CS', '1', 'EndingRespiratoryPhase'],\n '9250': ['CS', '1', 'RespiratoryTriggerType'],\n '9251': ['FD', '1', 'RRIntervalTimeNominal'],\n '9252': ['FD', '1', 'ActualCardiacTriggerDelayTime'],\n '9253': ['SQ', '1', 'RespiratorySynchronizationSequence'],\n '9254': ['FD', '1', 'RespiratoryIntervalTime'],\n '9255': ['FD', '1', 'NominalRespiratoryTriggerDelayTime'],\n '9256': ['FD', '1', 'RespiratoryTriggerDelayThreshold'],\n '9257': ['FD', '1', 'ActualRespiratoryTriggerDelayTime'],\n '9301': ['FD', '3', 'ImagePositionVolume'],\n '9302': ['FD', '6', 'ImageOrientationVolume'],\n '9307': ['CS', '1', 'UltrasoundAcquisitionGeometry'],\n '9308': ['FD', '3', 'ApexPosition'],\n '9309': ['FD', '16', 'VolumeToTransducerMappingMatrix'],\n '930A': ['FD', '16', 'VolumeToTableMappingMatrix'],\n '930B': ['CS', '1', 'VolumeToTransducerRelationship'],\n '930C': ['CS', '1', 'PatientFrameOfReferenceSource'],\n '930D': ['FD', '1', 'TemporalPositionTimeOffset'],\n '930E': ['SQ', '1', 'PlanePositionVolumeSequence'],\n '930F': ['SQ', '1', 'PlaneOrientationVolumeSequence'],\n '9310': ['SQ', '1', 'TemporalPositionSequence'],\n '9311': ['CS', '1', 'DimensionOrganizationType'],\n '9312': ['UI', '1', 'VolumeFrameOfReferenceUID'],\n '9313': ['UI', '1', 'TableFrameOfReferenceUID'],\n '9421': ['LO', '1', 'DimensionDescriptionLabel'],\n '9450': ['SQ', '1', 'PatientOrientationInFrameSequence'],\n '9453': ['LO', '1', 'FrameLabel'],\n '9518': ['US', '1-n', 'AcquisitionIndex'],\n '9529': ['SQ', '1', 'ContributingSOPInstancesReferenceSequence'],\n '9536': ['US', '1', 'ReconstructionIndex']\n },\n '0022': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['US', '1', 'LightPathFilterPassThroughWavelength'],\n '0002': ['US', '2', 'LightPathFilterPassBand'],\n '0003': ['US', '1', 'ImagePathFilterPassThroughWavelength'],\n '0004': ['US', '2', 'ImagePathFilterPassBand'],\n '0005': ['CS', '1', 'PatientEyeMovementCommanded'],\n '0006': ['SQ', '1', 'PatientEyeMovementCommandCodeSequence'],\n '0007': ['FL', '1', 'SphericalLensPower'],\n '0008': ['FL', '1', 'CylinderLensPower'],\n '0009': ['FL', '1', 'CylinderAxis'],\n '000A': ['FL', '1', 'EmmetropicMagnification'],\n '000B': ['FL', '1', 'IntraOcularPressure'],\n '000C': ['FL', '1', 'HorizontalFieldOfView'],\n '000D': ['CS', '1', 'PupilDilated'],\n '000E': ['FL', '1', 'DegreeOfDilation'],\n '0010': ['FL', '1', 'StereoBaselineAngle'],\n '0011': ['FL', '1', 'StereoBaselineDisplacement'],\n '0012': ['FL', '1', 'StereoHorizontalPixelOffset'],\n '0013': ['FL', '1', 'StereoVerticalPixelOffset'],\n '0014': ['FL', '1', 'StereoRotation'],\n '0015': ['SQ', '1', 'AcquisitionDeviceTypeCodeSequence'],\n '0016': ['SQ', '1', 'IlluminationTypeCodeSequence'],\n '0017': ['SQ', '1', 'LightPathFilterTypeStackCodeSequence'],\n '0018': ['SQ', '1', 'ImagePathFilterTypeStackCodeSequence'],\n '0019': ['SQ', '1', 'LensesCodeSequence'],\n '001A': ['SQ', '1', 'ChannelDescriptionCodeSequence'],\n '001B': ['SQ', '1', 'RefractiveStateSequence'],\n '001C': ['SQ', '1', 'MydriaticAgentCodeSequence'],\n '001D': ['SQ', '1', 'RelativeImagePositionCodeSequence'],\n '001E': ['FL', '1', 'CameraAngleOfView'],\n '0020': ['SQ', '1', 'StereoPairsSequence'],\n '0021': ['SQ', '1', 'LeftImageSequence'],\n '0022': ['SQ', '1', 'RightImageSequence'],\n '0028': ['CS', '1', 'StereoPairsPresent'],\n '0030': ['FL', '1', 'AxialLengthOfTheEye'],\n '0031': ['SQ', '1', 'OphthalmicFrameLocationSequence'],\n '0032': ['FL', '2-2n', 'ReferenceCoordinates'],\n '0035': ['FL', '1', 'DepthSpatialResolution'],\n '0036': ['FL', '1', 'MaximumDepthDistortion'],\n '0037': ['FL', '1', 'AlongScanSpatialResolution'],\n '0038': ['FL', '1', 'MaximumAlongScanDistortion'],\n '0039': ['CS', '1', 'OphthalmicImageOrientation'],\n '0041': ['FL', '1', 'DepthOfTransverseImage'],\n '0042': ['SQ', '1', 'MydriaticAgentConcentrationUnitsSequence'],\n '0048': ['FL', '1', 'AcrossScanSpatialResolution'],\n '0049': ['FL', '1', 'MaximumAcrossScanDistortion'],\n '004E': ['DS', '1', 'MydriaticAgentConcentration'],\n '0055': ['FL', '1', 'IlluminationWaveLength'],\n '0056': ['FL', '1', 'IlluminationPower'],\n '0057': ['FL', '1', 'IlluminationBandwidth'],\n '0058': ['SQ', '1', 'MydriaticAgentSequence'],\n '1007': ['SQ', '1', 'OphthalmicAxialMeasurementsRightEyeSequence'],\n '1008': ['SQ', '1', 'OphthalmicAxialMeasurementsLeftEyeSequence'],\n '1009': ['CS', '1', 'OphthalmicAxialMeasurementsDeviceType'],\n '1010': ['CS', '1', 'OphthalmicAxialLengthMeasurementsType'],\n '1012': ['SQ', '1', 'OphthalmicAxialLengthSequence'],\n '1019': ['FL', '1', 'OphthalmicAxialLength'],\n '1024': ['SQ', '1', 'LensStatusCodeSequence'],\n '1025': ['SQ', '1', 'VitreousStatusCodeSequence'],\n '1028': ['SQ', '1', 'IOLFormulaCodeSequence'],\n '1029': ['LO', '1', 'IOLFormulaDetail'],\n '1033': ['FL', '1', 'KeratometerIndex'],\n '1035': ['SQ', '1', 'SourceOfOphthalmicAxialLengthCodeSequence'],\n '1036': ['SQ', '1', 'SourceOfCornealSizeDataCodeSequence'],\n '1037': ['FL', '1', 'TargetRefraction'],\n '1039': ['CS', '1', 'RefractiveProcedureOccurred'],\n '1040': ['SQ', '1', 'RefractiveSurgeryTypeCodeSequence'],\n '1044': ['SQ', '1', 'OphthalmicUltrasoundMethodCodeSequence'],\n '1045': ['SQ', '1', 'SurgicallyInducedAstigmatismSequence'],\n '1046': ['CS', '1', 'TypeOfOpticalCorrection'],\n '1047': ['SQ', '1', 'ToricIOLPowerSequence'],\n '1048': ['SQ', '1', 'PredictedToricErrorSequence'],\n '1049': ['CS', '1', 'PreSelectedForImplantation'],\n '104A': ['SQ', '1', 'ToricIOLPowerForExactEmmetropiaSequence'],\n '104B': ['SQ', '1', 'ToricIOLPowerForExactTargetRefractionSequence'],\n '1050': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsSequence'],\n '1053': ['FL', '1', 'IOLPower'],\n '1054': ['FL', '1', 'PredictedRefractiveError'],\n '1059': ['FL', '1', 'OphthalmicAxialLengthVelocity'],\n '1065': ['LO', '1', 'LensStatusDescription'],\n '1066': ['LO', '1', 'VitreousStatusDescription'],\n '1090': ['SQ', '1', 'IOLPowerSequence'],\n '1092': ['SQ', '1', 'LensConstantSequence'],\n '1093': ['LO', '1', 'IOLManufacturer'],\n '1094': ['LO', '1', 'LensConstantDescription'],\n '1095': ['LO', '1', 'ImplantName'],\n '1096': ['SQ', '1', 'KeratometryMeasurementTypeCodeSequence'],\n '1097': ['LO', '1', 'ImplantPartNumber'],\n '1100': ['SQ', '1', 'ReferencedOphthalmicAxialMeasurementsSequence'],\n '1101': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsSegmentNameCodeSequence'],\n '1103': ['SQ', '1', 'RefractiveErrorBeforeRefractiveSurgeryCodeSequence'],\n '1121': ['FL', '1', 'IOLPowerForExactEmmetropia'],\n '1122': ['FL', '1', 'IOLPowerForExactTargetRefraction'],\n '1125': ['SQ', '1', 'AnteriorChamberDepthDefinitionCodeSequence'],\n '1127': ['SQ', '1', 'LensThicknessSequence'],\n '1128': ['SQ', '1', 'AnteriorChamberDepthSequence'],\n '112A': ['SQ', '1', 'CalculationCommentSequence'],\n '112B': ['CS', '1', 'CalculationCommentType'],\n '112C': ['LT', '1', 'CalculationComment'],\n '1130': ['FL', '1', 'LensThickness'],\n '1131': ['FL', '1', 'AnteriorChamberDepth'],\n '1132': ['SQ', '1', 'SourceOfLensThicknessDataCodeSequence'],\n '1133': ['SQ', '1', 'SourceOfAnteriorChamberDepthDataCodeSequence'],\n '1134': ['SQ', '1', 'SourceOfRefractiveMeasurementsSequence'],\n '1135': ['SQ', '1', 'SourceOfRefractiveMeasurementsCodeSequence'],\n '1140': ['CS', '1', 'OphthalmicAxialLengthMeasurementModified'],\n '1150': ['SQ', '1', 'OphthalmicAxialLengthDataSourceCodeSequence'],\n '1153': ['SQ', '1', 'OphthalmicAxialLengthAcquisitionMethodCodeSequence'],\n '1155': ['FL', '1', 'SignalToNoiseRatio'],\n '1159': ['LO', '1', 'OphthalmicAxialLengthDataSourceDescription'],\n '1210': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsTotalLengthSequence'],\n '1211': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsSegmentalLengthSequence'],\n '1212': ['SQ', '1', 'OphthalmicAxialLengthMeasurementsLengthSummationSequence'],\n '1220': ['SQ', '1', 'UltrasoundOphthalmicAxialLengthMeasurementsSequence'],\n '1225': ['SQ', '1', 'OpticalOphthalmicAxialLengthMeasurementsSequence'],\n '1230': ['SQ', '1', 'UltrasoundSelectedOphthalmicAxialLengthSequence'],\n '1250': ['SQ', '1', 'OphthalmicAxialLengthSelectionMethodCodeSequence'],\n '1255': ['SQ', '1', 'OpticalSelectedOphthalmicAxialLengthSequence'],\n '1257': ['SQ', '1', 'SelectedSegmentalOphthalmicAxialLengthSequence'],\n '1260': ['SQ', '1', 'SelectedTotalOphthalmicAxialLengthSequence'],\n '1262': ['SQ', '1', 'OphthalmicAxialLengthQualityMetricSequence'],\n '1265': ['SQ', '1', 'OphthalmicAxialLengthQualityMetricTypeCodeSequence'],\n '1273': ['LO', '1', 'OphthalmicAxialLengthQualityMetricTypeDescription'],\n '1300': ['SQ', '1', 'IntraocularLensCalculationsRightEyeSequence'],\n '1310': ['SQ', '1', 'IntraocularLensCalculationsLeftEyeSequence'],\n '1330': ['SQ', '1', 'ReferencedOphthalmicAxialLengthMeasurementQCImageSequence'],\n '1415': ['CS', '1', 'OphthalmicMappingDeviceType'],\n '1420': ['SQ', '1', 'AcquisitionMethodCodeSequence'],\n '1423': ['SQ', '1', 'AcquisitionMethodAlgorithmSequence'],\n '1436': ['SQ', '1', 'OphthalmicThicknessMapTypeCodeSequence'],\n '1443': ['SQ', '1', 'OphthalmicThicknessMappingNormalsSequence'],\n '1445': ['SQ', '1', 'RetinalThicknessDefinitionCodeSequence'],\n '1450': ['SQ', '1', 'PixelValueMappingToCodedConceptSequence'],\n '1452': ['xs', '1', 'MappedPixelValue'],\n '1454': ['LO', '1', 'PixelValueMappingExplanation'],\n '1458': ['SQ', '1', 'OphthalmicThicknessMapQualityThresholdSequence'],\n '1460': ['FL', '1', 'OphthalmicThicknessMapThresholdQualityRating'],\n '1463': ['FL', '2', 'AnatomicStructureReferencePoint'],\n '1465': ['SQ', '1', 'RegistrationToLocalizerSequence'],\n '1466': ['CS', '1', 'RegisteredLocalizerUnits'],\n '1467': ['FL', '2', 'RegisteredLocalizerTopLeftHandCorner'],\n '1468': ['FL', '2', 'RegisteredLocalizerBottomRightHandCorner'],\n '1470': ['SQ', '1', 'OphthalmicThicknessMapQualityRatingSequence'],\n '1472': ['SQ', '1', 'RelevantOPTAttributesSequence'],\n '1512': ['SQ', '1', 'TransformationMethodCodeSequence'],\n '1513': ['SQ', '1', 'TransformationAlgorithmSequence'],\n '1515': ['CS', '1', 'OphthalmicAxialLengthMethod'],\n '1517': ['FL', '1', 'OphthalmicFOV'],\n '1518': ['SQ', '1', 'TwoDimensionalToThreeDimensionalMapSequence'],\n '1525': ['SQ', '1', 'WideFieldOphthalmicPhotographyQualityRatingSequence'],\n '1526': ['SQ', '1', 'WideFieldOphthalmicPhotographyQualityThresholdSequence'],\n '1527': ['FL', '1', 'WideFieldOphthalmicPhotographyThresholdQualityRating'],\n '1528': ['FL', '1', 'XCoordinatesCenterPixelViewAngle'],\n '1529': ['FL', '1', 'YCoordinatesCenterPixelViewAngle'],\n '1530': ['UL', '1', 'NumberOfMapPoints'],\n '1531': ['OF', '1', 'TwoDimensionalToThreeDimensionalMapData'],\n '1612': ['SQ', '1', 'DerivationAlgorithmSequence'],\n '1615': ['SQ', '1', 'OphthalmicImageTypeCodeSequence'],\n '1616': ['LO', '1', 'OphthalmicImageTypeDescription'],\n '1618': ['SQ', '1', 'ScanPatternTypeCodeSequence'],\n '1620': ['SQ', '1', 'ReferencedSurfaceMeshIdentificationSequence'],\n '1622': ['CS', '1', 'OphthalmicVolumetricPropertiesFlag'],\n '1624': ['FL', '1', 'OphthalmicAnatomicReferencePointXCoordinate'],\n '1626': ['FL', '1', 'OphthalmicAnatomicReferencePointYCoordinate'],\n '1628': ['SQ', '1', 'OphthalmicEnFaceImageQualityRatingSequence'],\n '1630': ['DS', '1', 'QualityThreshold'],\n '1640': ['SQ', '1', 'OCTBscanAnalysisAcquisitionParametersSequence'],\n '1642': ['UL', '1', 'NumberOfBscansPerFrame'],\n '1643': ['FL', '1', 'BscanSlabThickness'],\n '1644': ['FL', '1', 'DistanceBetweenBscanSlabs'],\n '1645': ['FL', '1', 'BscanCycleTime'],\n '1646': ['FL', '1-n', 'BscanCycleTimeVector'],\n '1649': ['FL', '1', 'AscanRate'],\n '1650': ['FL', '1', 'BscanRate'],\n '1658': ['UL', '1', 'SurfaceMeshZPixelOffset']\n },\n '0024': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['FL', '1', 'VisualFieldHorizontalExtent'],\n '0011': ['FL', '1', 'VisualFieldVerticalExtent'],\n '0012': ['CS', '1', 'VisualFieldShape'],\n '0016': ['SQ', '1', 'ScreeningTestModeCodeSequence'],\n '0018': ['FL', '1', 'MaximumStimulusLuminance'],\n '0020': ['FL', '1', 'BackgroundLuminance'],\n '0021': ['SQ', '1', 'StimulusColorCodeSequence'],\n '0024': ['SQ', '1', 'BackgroundIlluminationColorCodeSequence'],\n '0025': ['FL', '1', 'StimulusArea'],\n '0028': ['FL', '1', 'StimulusPresentationTime'],\n '0032': ['SQ', '1', 'FixationSequence'],\n '0033': ['SQ', '1', 'FixationMonitoringCodeSequence'],\n '0034': ['SQ', '1', 'VisualFieldCatchTrialSequence'],\n '0035': ['US', '1', 'FixationCheckedQuantity'],\n '0036': ['US', '1', 'PatientNotProperlyFixatedQuantity'],\n '0037': ['CS', '1', 'PresentedVisualStimuliDataFlag'],\n '0038': ['US', '1', 'NumberOfVisualStimuli'],\n '0039': ['CS', '1', 'ExcessiveFixationLossesDataFlag'],\n '0040': ['CS', '1', 'ExcessiveFixationLosses'],\n '0042': ['US', '1', 'StimuliRetestingQuantity'],\n '0044': ['LT', '1', 'CommentsOnPatientPerformanceOfVisualField'],\n '0045': ['CS', '1', 'FalseNegativesEstimateFlag'],\n '0046': ['FL', '1', 'FalseNegativesEstimate'],\n '0048': ['US', '1', 'NegativeCatchTrialsQuantity'],\n '0050': ['US', '1', 'FalseNegativesQuantity'],\n '0051': ['CS', '1', 'ExcessiveFalseNegativesDataFlag'],\n '0052': ['CS', '1', 'ExcessiveFalseNegatives'],\n '0053': ['CS', '1', 'FalsePositivesEstimateFlag'],\n '0054': ['FL', '1', 'FalsePositivesEstimate'],\n '0055': ['CS', '1', 'CatchTrialsDataFlag'],\n '0056': ['US', '1', 'PositiveCatchTrialsQuantity'],\n '0057': ['CS', '1', 'TestPointNormalsDataFlag'],\n '0058': ['SQ', '1', 'TestPointNormalsSequence'],\n '0059': ['CS', '1', 'GlobalDeviationProbabilityNormalsFlag'],\n '0060': ['US', '1', 'FalsePositivesQuantity'],\n '0061': ['CS', '1', 'ExcessiveFalsePositivesDataFlag'],\n '0062': ['CS', '1', 'ExcessiveFalsePositives'],\n '0063': ['CS', '1', 'VisualFieldTestNormalsFlag'],\n '0064': ['SQ', '1', 'ResultsNormalsSequence'],\n '0065': ['SQ', '1', 'AgeCorrectedSensitivityDeviationAlgorithmSequence'],\n '0066': ['FL', '1', 'GlobalDeviationFromNormal'],\n '0067': ['SQ', '1', 'GeneralizedDefectSensitivityDeviationAlgorithmSequence'],\n '0068': ['FL', '1', 'LocalizedDeviationFromNormal'],\n '0069': ['LO', '1', 'PatientReliabilityIndicator'],\n '0070': ['FL', '1', 'VisualFieldMeanSensitivity'],\n '0071': ['FL', '1', 'GlobalDeviationProbability'],\n '0072': ['CS', '1', 'LocalDeviationProbabilityNormalsFlag'],\n '0073': ['FL', '1', 'LocalizedDeviationProbability'],\n '0074': ['CS', '1', 'ShortTermFluctuationCalculated'],\n '0075': ['FL', '1', 'ShortTermFluctuation'],\n '0076': ['CS', '1', 'ShortTermFluctuationProbabilityCalculated'],\n '0077': ['FL', '1', 'ShortTermFluctuationProbability'],\n '0078': ['CS', '1', 'CorrectedLocalizedDeviationFromNormalCalculated'],\n '0079': ['FL', '1', 'CorrectedLocalizedDeviationFromNormal'],\n '0080': ['CS', '1', 'CorrectedLocalizedDeviationFromNormalProbabilityCalculated'],\n '0081': ['FL', '1', 'CorrectedLocalizedDeviationFromNormalProbability'],\n '0083': ['SQ', '1', 'GlobalDeviationProbabilitySequence'],\n '0085': ['SQ', '1', 'LocalizedDeviationProbabilitySequence'],\n '0086': ['CS', '1', 'FovealSensitivityMeasured'],\n '0087': ['FL', '1', 'FovealSensitivity'],\n '0088': ['FL', '1', 'VisualFieldTestDuration'],\n '0089': ['SQ', '1', 'VisualFieldTestPointSequence'],\n '0090': ['FL', '1', 'VisualFieldTestPointXCoordinate'],\n '0091': ['FL', '1', 'VisualFieldTestPointYCoordinate'],\n '0092': ['FL', '1', 'AgeCorrectedSensitivityDeviationValue'],\n '0093': ['CS', '1', 'StimulusResults'],\n '0094': ['FL', '1', 'SensitivityValue'],\n '0095': ['CS', '1', 'RetestStimulusSeen'],\n '0096': ['FL', '1', 'RetestSensitivityValue'],\n '0097': ['SQ', '1', 'VisualFieldTestPointNormalsSequence'],\n '0098': ['FL', '1', 'QuantifiedDefect'],\n '0100': ['FL', '1', 'AgeCorrectedSensitivityDeviationProbabilityValue'],\n '0102': ['CS', '1', 'GeneralizedDefectCorrectedSensitivityDeviationFlag'],\n '0103': ['FL', '1', 'GeneralizedDefectCorrectedSensitivityDeviationValue'],\n '0104': ['FL', '1', 'GeneralizedDefectCorrectedSensitivityDeviationProbabilityValue'],\n '0105': ['FL', '1', 'MinimumSensitivityValue'],\n '0106': ['CS', '1', 'BlindSpotLocalized'],\n '0107': ['FL', '1', 'BlindSpotXCoordinate'],\n '0108': ['FL', '1', 'BlindSpotYCoordinate'],\n '0110': ['SQ', '1', 'VisualAcuityMeasurementSequence'],\n '0112': ['SQ', '1', 'RefractiveParametersUsedOnPatientSequence'],\n '0113': ['CS', '1', 'MeasurementLaterality'],\n '0114': ['SQ', '1', 'OphthalmicPatientClinicalInformationLeftEyeSequence'],\n '0115': ['SQ', '1', 'OphthalmicPatientClinicalInformationRightEyeSequence'],\n '0117': ['CS', '1', 'FovealPointNormativeDataFlag'],\n '0118': ['FL', '1', 'FovealPointProbabilityValue'],\n '0120': ['CS', '1', 'ScreeningBaselineMeasured'],\n '0122': ['SQ', '1', 'ScreeningBaselineMeasuredSequence'],\n '0124': ['CS', '1', 'ScreeningBaselineType'],\n '0126': ['FL', '1', 'ScreeningBaselineValue'],\n '0202': ['LO', '1', 'AlgorithmSource'],\n '0306': ['LO', '1', 'DataSetName'],\n '0307': ['LO', '1', 'DataSetVersion'],\n '0308': ['LO', '1', 'DataSetSource'],\n '0309': ['LO', '1', 'DataSetDescription'],\n '0317': ['SQ', '1', 'VisualFieldTestReliabilityGlobalIndexSequence'],\n '0320': ['SQ', '1', 'VisualFieldGlobalResultsIndexSequence'],\n '0325': ['SQ', '1', 'DataObservationSequence'],\n '0338': ['CS', '1', 'IndexNormalsFlag'],\n '0341': ['FL', '1', 'IndexProbability'],\n '0344': ['SQ', '1', 'IndexProbabilitySequence']\n },\n '0028': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['US', '1', 'SamplesPerPixel'],\n '0003': ['US', '1', 'SamplesPerPixelUsed'],\n '0004': ['CS', '1', 'PhotometricInterpretation'],\n '0005': ['US', '1', 'ImageDimensions'],\n '0006': ['US', '1', 'PlanarConfiguration'],\n '0008': ['IS', '1', 'NumberOfFrames'],\n '0009': ['AT', '1-n', 'FrameIncrementPointer'],\n '000A': ['AT', '1-n', 'FrameDimensionPointer'],\n '0010': ['US', '1', 'Rows'],\n '0011': ['US', '1', 'Columns'],\n '0012': ['US', '1', 'Planes'],\n '0014': ['US', '1', 'UltrasoundColorDataPresent'],\n '0020': ['', '', ''],\n '0030': ['DS', '2', 'PixelSpacing'],\n '0031': ['DS', '2', 'ZoomFactor'],\n '0032': ['DS', '2', 'ZoomCenter'],\n '0034': ['IS', '2', 'PixelAspectRatio'],\n '0040': ['CS', '1', 'ImageFormat'],\n '0050': ['LO', '1-n', 'ManipulatedImage'],\n '0051': ['CS', '1-n', 'CorrectedImage'],\n '005F': ['LO', '1', 'CompressionRecognitionCode'],\n '0060': ['CS', '1', 'CompressionCode'],\n '0061': ['SH', '1', 'CompressionOriginator'],\n '0062': ['LO', '1', 'CompressionLabel'],\n '0063': ['SH', '1', 'CompressionDescription'],\n '0065': ['CS', '1-n', 'CompressionSequence'],\n '0066': ['AT', '1-n', 'CompressionStepPointers'],\n '0068': ['US', '1', 'RepeatInterval'],\n '0069': ['US', '1', 'BitsGrouped'],\n '0070': ['US', '1-n', 'PerimeterTable'],\n '0071': ['xs', '1', 'PerimeterValue'],\n '0080': ['US', '1', 'PredictorRows'],\n '0081': ['US', '1', 'PredictorColumns'],\n '0082': ['US', '1-n', 'PredictorConstants'],\n '0090': ['CS', '1', 'BlockedPixels'],\n '0091': ['US', '1', 'BlockRows'],\n '0092': ['US', '1', 'BlockColumns'],\n '0093': ['US', '1', 'RowOverlap'],\n '0094': ['US', '1', 'ColumnOverlap'],\n '0100': ['US', '1', 'BitsAllocated'],\n '0101': ['US', '1', 'BitsStored'],\n '0102': ['US', '1', 'HighBit'],\n '0103': ['US', '1', 'PixelRepresentation'],\n '0104': ['xs', '1', 'SmallestValidPixelValue'],\n '0105': ['xs', '1', 'LargestValidPixelValue'],\n '0106': ['xs', '1', 'SmallestImagePixelValue'],\n '0107': ['xs', '1', 'LargestImagePixelValue'],\n '0108': ['xs', '1', 'SmallestPixelValueInSeries'],\n '0109': ['xs', '1', 'LargestPixelValueInSeries'],\n '0110': ['xs', '1', 'SmallestImagePixelValueInPlane'],\n '0111': ['xs', '1', 'LargestImagePixelValueInPlane'],\n '0120': ['xs', '1', 'PixelPaddingValue'],\n '0121': ['xs', '1', 'PixelPaddingRangeLimit'],\n '0122': ['FL', '1', 'FloatPixelPaddingValue'],\n '0123': ['FD', '1', 'DoubleFloatPixelPaddingValue'],\n '0124': ['FL', '1', 'FloatPixelPaddingRangeLimit'],\n '0125': ['FD', '1', 'DoubleFloatPixelPaddingRangeLimit'],\n '0200': ['US', '1', 'ImageLocation'],\n '0300': ['CS', '1', 'QualityControlImage'],\n '0301': ['CS', '1', 'BurnedInAnnotation'],\n '0302': ['CS', '1', 'RecognizableVisualFeatures'],\n '0303': ['CS', '1', 'LongitudinalTemporalInformationModified'],\n '0304': ['UI', '1', 'ReferencedColorPaletteInstanceUID'],\n '0400': ['LO', '1', 'TransformLabel'],\n '0401': ['LO', '1', 'TransformVersionNumber'],\n '0402': ['US', '1', 'NumberOfTransformSteps'],\n '0403': ['LO', '1-n', 'SequenceOfCompressedData'],\n '0404': ['AT', '1-n', 'DetailsOfCoefficients'],\n '04x0': ['US', '1', 'RowsForNthOrderCoefficients'],\n '04x1': ['US', '1', 'ColumnsForNthOrderCoefficients'],\n '04x2': ['LO', '1-n', 'CoefficientCoding'],\n '04x3': ['AT', '1-n', 'CoefficientCodingPointers'],\n '0700': ['LO', '1', 'DCTLabel'],\n '0701': ['CS', '1-n', 'DataBlockDescription'],\n '0702': ['AT', '1-n', 'DataBlock'],\n '0710': ['US', '1', 'NormalizationFactorFormat'],\n '0720': ['US', '1', 'ZonalMapNumberFormat'],\n '0721': ['AT', '1-n', 'ZonalMapLocation'],\n '0722': ['US', '1', 'ZonalMapFormat'],\n '0730': ['US', '1', 'AdaptiveMapFormat'],\n '0740': ['US', '1', 'CodeNumberFormat'],\n '08x0': ['CS', '1-n', 'CodeLabel'],\n '08x2': ['US', '1', 'NumberOfTables'],\n '08x3': ['AT', '1-n', 'CodeTableLocation'],\n '08x4': ['US', '1', 'BitsForCodeWord'],\n '08x8': ['AT', '1-n', 'ImageDataLocation'],\n '0A02': ['CS', '1', 'PixelSpacingCalibrationType'],\n '0A04': ['LO', '1', 'PixelSpacingCalibrationDescription'],\n '1040': ['CS', '1', 'PixelIntensityRelationship'],\n '1041': ['SS', '1', 'PixelIntensityRelationshipSign'],\n '1050': ['DS', '1-n', 'WindowCenter'],\n '1051': ['DS', '1-n', 'WindowWidth'],\n '1052': ['DS', '1', 'RescaleIntercept'],\n '1053': ['DS', '1', 'RescaleSlope'],\n '1054': ['LO', '1', 'RescaleType'],\n '1055': ['LO', '1-n', 'WindowCenterWidthExplanation'],\n '1056': ['CS', '1', 'VOILUTFunction'],\n '1080': ['CS', '1', 'GrayScale'],\n '1090': ['CS', '1', 'RecommendedViewingMode'],\n '1100': ['xs', '3', 'GrayLookupTableDescriptor'],\n '1101': ['xs', '3', 'RedPaletteColorLookupTableDescriptor'],\n '1102': ['xs', '3', 'GreenPaletteColorLookupTableDescriptor'],\n '1103': ['xs', '3', 'BluePaletteColorLookupTableDescriptor'],\n '1104': ['US', '3', 'AlphaPaletteColorLookupTableDescriptor'],\n '1111': ['xs', '4', 'LargeRedPaletteColorLookupTableDescriptor'],\n '1112': ['xs', '4', 'LargeGreenPaletteColorLookupTableDescriptor'],\n '1113': ['xs', '4', 'LargeBluePaletteColorLookupTableDescriptor'],\n '1199': ['UI', '1', 'PaletteColorLookupTableUID'],\n '1200': ['xs', '1-n or 1', 'GrayLookupTableData'],\n '1201': ['OW', '1', 'RedPaletteColorLookupTableData'],\n '1202': ['OW', '1', 'GreenPaletteColorLookupTableData'],\n '1203': ['OW', '1', 'BluePaletteColorLookupTableData'],\n '1204': ['OW', '1', 'AlphaPaletteColorLookupTableData'],\n '1211': ['OW', '1', 'LargeRedPaletteColorLookupTableData'],\n '1212': ['OW', '1', 'LargeGreenPaletteColorLookupTableData'],\n '1213': ['OW', '1', 'LargeBluePaletteColorLookupTableData'],\n '1214': ['UI', '1', 'LargePaletteColorLookupTableUID'],\n '1221': ['OW', '1', 'SegmentedRedPaletteColorLookupTableData'],\n '1222': ['OW', '1', 'SegmentedGreenPaletteColorLookupTableData'],\n '1223': ['OW', '1', 'SegmentedBluePaletteColorLookupTableData'],\n '1224': ['OW', '1', 'SegmentedAlphaPaletteColorLookupTableData'],\n '1230': ['SQ', '1', 'StoredValueColorRangeSequence'],\n '1231': ['FD', '1', 'MinimumStoredValueMapped'],\n '1232': ['FD', '1', 'MaximumStoredValueMapped'],\n '1300': ['CS', '1', 'BreastImplantPresent'],\n '1350': ['CS', '1', 'PartialView'],\n '1351': ['ST', '1', 'PartialViewDescription'],\n '1352': ['SQ', '1', 'PartialViewCodeSequence'],\n '135A': ['CS', '1', 'SpatialLocationsPreserved'],\n '1401': ['SQ', '1', 'DataFrameAssignmentSequence'],\n '1402': ['CS', '1', 'DataPathAssignment'],\n '1403': ['US', '1', 'BitsMappedToColorLookupTable'],\n '1404': ['SQ', '1', 'BlendingLUT1Sequence'],\n '1405': ['CS', '1', 'BlendingLUT1TransferFunction'],\n '1406': ['FD', '1', 'BlendingWeightConstant'],\n '1407': ['US', '3', 'BlendingLookupTableDescriptor'],\n '1408': ['OW', '1', 'BlendingLookupTableData'],\n '140B': ['SQ', '1', 'EnhancedPaletteColorLookupTableSequence'],\n '140C': ['SQ', '1', 'BlendingLUT2Sequence'],\n '140D': ['CS', '1', 'BlendingLUT2TransferFunction'],\n '140E': ['CS', '1', 'DataPathID'],\n '140F': ['CS', '1', 'RGBLUTTransferFunction'],\n '1410': ['CS', '1', 'AlphaLUTTransferFunction'],\n '2000': ['OB', '1', 'ICCProfile'],\n '2002': ['CS', '1', 'ColorSpace'],\n '2110': ['CS', '1', 'LossyImageCompression'],\n '2112': ['DS', '1-n', 'LossyImageCompressionRatio'],\n '2114': ['CS', '1-n', 'LossyImageCompressionMethod'],\n '3000': ['SQ', '1', 'ModalityLUTSequence'],\n '3002': ['xs', '3', 'LUTDescriptor'],\n '3003': ['LO', '1', 'LUTExplanation'],\n '3004': ['LO', '1', 'ModalityLUTType'],\n '3006': ['xx', '1-n or 1', 'LUTData'],\n '3010': ['SQ', '1', 'VOILUTSequence'],\n '3110': ['SQ', '1', 'SoftcopyVOILUTSequence'],\n '4000': ['LT', '1', 'ImagePresentationComments'],\n '5000': ['SQ', '1', 'BiPlaneAcquisitionSequence'],\n '6010': ['US', '1', 'RepresentativeFrameNumber'],\n '6020': ['US', '1-n', 'FrameNumbersOfInterest'],\n '6022': ['LO', '1-n', 'FrameOfInterestDescription'],\n '6023': ['CS', '1-n', 'FrameOfInterestType'],\n '6030': ['US', '1-n', 'MaskPointers'],\n '6040': ['US', '1-n', 'RWavePointer'],\n '6100': ['SQ', '1', 'MaskSubtractionSequence'],\n '6101': ['CS', '1', 'MaskOperation'],\n '6102': ['US', '2-2n', 'ApplicableFrameRange'],\n '6110': ['US', '1-n', 'MaskFrameNumbers'],\n '6112': ['US', '1', 'ContrastFrameAveraging'],\n '6114': ['FL', '2', 'MaskSubPixelShift'],\n '6120': ['SS', '1', 'TIDOffset'],\n '6190': ['ST', '1', 'MaskOperationExplanation'],\n '7000': ['SQ', '1', 'EquipmentAdministratorSequence'],\n '7001': ['US', '1', 'NumberOfDisplaySubsystems'],\n '7002': ['US', '1', 'CurrentConfigurationID'],\n '7003': ['US', '1', 'DisplaySubsystemID'],\n '7004': ['SH', '1', 'DisplaySubsystemName'],\n '7005': ['LO', '1', 'DisplaySubsystemDescription'],\n '7006': ['CS', '1', 'SystemStatus'],\n '7007': ['LO', '1', 'SystemStatusComment'],\n '7008': ['SQ', '1', 'TargetLuminanceCharacteristicsSequence'],\n '7009': ['US', '1', 'LuminanceCharacteristicsID'],\n '700A': ['SQ', '1', 'DisplaySubsystemConfigurationSequence'],\n '700B': ['US', '1', 'ConfigurationID'],\n '700C': ['SH', '1', 'ConfigurationName'],\n '700D': ['LO', '1', 'ConfigurationDescription'],\n '700E': ['US', '1', 'ReferencedTargetLuminanceCharacteristicsID'],\n '700F': ['SQ', '1', 'QAResultsSequence'],\n '7010': ['SQ', '1', 'DisplaySubsystemQAResultsSequence'],\n '7011': ['SQ', '1', 'ConfigurationQAResultsSequence'],\n '7012': ['SQ', '1', 'MeasurementEquipmentSequence'],\n '7013': ['CS', '1-n', 'MeasurementFunctions'],\n '7014': ['CS', '1', 'MeasurementEquipmentType'],\n '7015': ['SQ', '1', 'VisualEvaluationResultSequence'],\n '7016': ['SQ', '1', 'DisplayCalibrationResultSequence'],\n '7017': ['US', '1', 'DDLValue'],\n '7018': ['FL', '2', 'CIExyWhitePoint'],\n '7019': ['CS', '1', 'DisplayFunctionType'],\n '701A': ['FL', '1', 'GammaValue'],\n '701B': ['US', '1', 'NumberOfLuminancePoints'],\n '701C': ['SQ', '1', 'LuminanceResponseSequence'],\n '701D': ['FL', '1', 'TargetMinimumLuminance'],\n '701E': ['FL', '1', 'TargetMaximumLuminance'],\n '701F': ['FL', '1', 'LuminanceValue'],\n '7020': ['LO', '1', 'LuminanceResponseDescription'],\n '7021': ['CS', '1', 'WhitePointFlag'],\n '7022': ['SQ', '1', 'DisplayDeviceTypeCodeSequence'],\n '7023': ['SQ', '1', 'DisplaySubsystemSequence'],\n '7024': ['SQ', '1', 'LuminanceResultSequence'],\n '7025': ['CS', '1', 'AmbientLightValueSource'],\n '7026': ['CS', '1-n', 'MeasuredCharacteristics'],\n '7027': ['SQ', '1', 'LuminanceUniformityResultSequence'],\n '7028': ['SQ', '1', 'VisualEvaluationTestSequence'],\n '7029': ['CS', '1', 'TestResult'],\n '702A': ['LO', '1', 'TestResultComment'],\n '702B': ['CS', '1', 'TestImageValidation'],\n '702C': ['SQ', '1', 'TestPatternCodeSequence'],\n '702D': ['SQ', '1', 'MeasurementPatternCodeSequence'],\n '702E': ['SQ', '1', 'VisualEvaluationMethodCodeSequence'],\n '7FE0': ['UR', '1', 'PixelDataProviderURL'],\n '9001': ['UL', '1', 'DataPointRows'],\n '9002': ['UL', '1', 'DataPointColumns'],\n '9003': ['CS', '1', 'SignalDomainColumns'],\n '9099': ['US', '1', 'LargestMonochromePixelValue'],\n '9108': ['CS', '1', 'DataRepresentation'],\n '9110': ['SQ', '1', 'PixelMeasuresSequence'],\n '9132': ['SQ', '1', 'FrameVOILUTSequence'],\n '9145': ['SQ', '1', 'PixelValueTransformationSequence'],\n '9235': ['CS', '1', 'SignalDomainRows'],\n '9411': ['FL', '1', 'DisplayFilterPercentage'],\n '9415': ['SQ', '1', 'FramePixelShiftSequence'],\n '9416': ['US', '1', 'SubtractionItemID'],\n '9422': ['SQ', '1', 'PixelIntensityRelationshipLUTSequence'],\n '9443': ['SQ', '1', 'FramePixelDataPropertiesSequence'],\n '9444': ['CS', '1', 'GeometricalProperties'],\n '9445': ['FL', '1', 'GeometricMaximumDistortion'],\n '9446': ['CS', '1-n', 'ImageProcessingApplied'],\n '9454': ['CS', '1', 'MaskSelectionMode'],\n '9474': ['CS', '1', 'LUTFunction'],\n '9478': ['FL', '1', 'MaskVisibilityPercentage'],\n '9501': ['SQ', '1', 'PixelShiftSequence'],\n '9502': ['SQ', '1', 'RegionPixelShiftSequence'],\n '9503': ['SS', '2-2n', 'VerticesOfTheRegion'],\n '9505': ['SQ', '1', 'MultiFramePresentationSequence'],\n '9506': ['US', '2-2n', 'PixelShiftFrameRange'],\n '9507': ['US', '2-2n', 'LUTFrameRange'],\n '9520': ['DS', '16', 'ImageToEquipmentMappingMatrix'],\n '9537': ['CS', '1', 'EquipmentCoordinateSystemIdentification']\n },\n '0032': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '000A': ['CS', '1', 'StudyStatusID'],\n '000C': ['CS', '1', 'StudyPriorityID'],\n '0012': ['LO', '1', 'StudyIDIssuer'],\n '0032': ['DA', '1', 'StudyVerifiedDate'],\n '0033': ['TM', '1', 'StudyVerifiedTime'],\n '0034': ['DA', '1', 'StudyReadDate'],\n '0035': ['TM', '1', 'StudyReadTime'],\n '1000': ['DA', '1', 'ScheduledStudyStartDate'],\n '1001': ['TM', '1', 'ScheduledStudyStartTime'],\n '1010': ['DA', '1', 'ScheduledStudyStopDate'],\n '1011': ['TM', '1', 'ScheduledStudyStopTime'],\n '1020': ['LO', '1', 'ScheduledStudyLocation'],\n '1021': ['AE', '1-n', 'ScheduledStudyLocationAETitle'],\n '1030': ['LO', '1', 'ReasonForStudy'],\n '1031': ['SQ', '1', 'RequestingPhysicianIdentificationSequence'],\n '1032': ['PN', '1', 'RequestingPhysician'],\n '1033': ['LO', '1', 'RequestingService'],\n '1034': ['SQ', '1', 'RequestingServiceCodeSequence'],\n '1040': ['DA', '1', 'StudyArrivalDate'],\n '1041': ['TM', '1', 'StudyArrivalTime'],\n '1050': ['DA', '1', 'StudyCompletionDate'],\n '1051': ['TM', '1', 'StudyCompletionTime'],\n '1055': ['CS', '1', 'StudyComponentStatusID'],\n '1060': ['LO', '1', 'RequestedProcedureDescription'],\n '1064': ['SQ', '1', 'RequestedProcedureCodeSequence'],\n '1065': ['SQ', '1', 'RequestedLateralityCodeSequence'],\n '1066': ['UT', '1', 'ReasonForVisit'],\n '1067': ['SQ', '1', 'ReasonForVisitCodeSequence'],\n '1070': ['LO', '1', 'RequestedContrastAgent'],\n '4000': ['LT', '1', 'StudyComments']\n },\n '0034': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'FlowIdentifierSequence'],\n '0002': ['OB', '1', 'FlowIdentifier'],\n '0003': ['UI', '1', 'FlowTransferSyntaxUID'],\n '0004': ['UL', '1', 'FlowRTPSamplingRate'],\n '0005': ['OB', '1', 'SourceIdentifier'],\n '0007': ['OB', '1', 'FrameOriginTimestamp'],\n '0008': ['CS', '1', 'IncludesImagingSubject'],\n '0009': ['SQ', '1', 'FrameUsefulnessGroupSequence'],\n '000A': ['SQ', '1', 'RealTimeBulkDataFlowSequence'],\n '000B': ['SQ', '1', 'CameraPositionGroupSequence'],\n '000C': ['CS', '1', 'IncludesInformation'],\n '000D': ['SQ', '1', 'TimeOfFrameGroupSequence']\n },\n '0038': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['SQ', '1', 'ReferencedPatientAliasSequence'],\n '0008': ['CS', '1', 'VisitStatusID'],\n '0010': ['LO', '1', 'AdmissionID'],\n '0011': ['LO', '1', 'IssuerOfAdmissionID'],\n '0014': ['SQ', '1', 'IssuerOfAdmissionIDSequence'],\n '0016': ['LO', '1', 'RouteOfAdmissions'],\n '001A': ['DA', '1', 'ScheduledAdmissionDate'],\n '001B': ['TM', '1', 'ScheduledAdmissionTime'],\n '001C': ['DA', '1', 'ScheduledDischargeDate'],\n '001D': ['TM', '1', 'ScheduledDischargeTime'],\n '001E': ['LO', '1', 'ScheduledPatientInstitutionResidence'],\n '0020': ['DA', '1', 'AdmittingDate'],\n '0021': ['TM', '1', 'AdmittingTime'],\n '0030': ['DA', '1', 'DischargeDate'],\n '0032': ['TM', '1', 'DischargeTime'],\n '0040': ['LO', '1', 'DischargeDiagnosisDescription'],\n '0044': ['SQ', '1', 'DischargeDiagnosisCodeSequence'],\n '0050': ['LO', '1', 'SpecialNeeds'],\n '0060': ['LO', '1', 'ServiceEpisodeID'],\n '0061': ['LO', '1', 'IssuerOfServiceEpisodeID'],\n '0062': ['LO', '1', 'ServiceEpisodeDescription'],\n '0064': ['SQ', '1', 'IssuerOfServiceEpisodeIDSequence'],\n '0100': ['SQ', '1', 'PertinentDocumentsSequence'],\n '0101': ['SQ', '1', 'PertinentResourcesSequence'],\n '0102': ['LO', '1', 'ResourceDescription'],\n '0300': ['LO', '1', 'CurrentPatientLocation'],\n '0400': ['LO', '1', 'PatientInstitutionResidence'],\n '0500': ['LO', '1', 'PatientState'],\n '0502': ['SQ', '1', 'PatientClinicalTrialParticipationSequence'],\n '4000': ['LT', '1', 'VisitComments']\n },\n '003A': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['CS', '1', 'WaveformOriginality'],\n '0005': ['US', '1', 'NumberOfWaveformChannels'],\n '0010': ['UL', '1', 'NumberOfWaveformSamples'],\n '001A': ['DS', '1', 'SamplingFrequency'],\n '0020': ['SH', '1', 'MultiplexGroupLabel'],\n '0200': ['SQ', '1', 'ChannelDefinitionSequence'],\n '0202': ['IS', '1', 'WaveformChannelNumber'],\n '0203': ['SH', '1', 'ChannelLabel'],\n '0205': ['CS', '1-n', 'ChannelStatus'],\n '0208': ['SQ', '1', 'ChannelSourceSequence'],\n '0209': ['SQ', '1', 'ChannelSourceModifiersSequence'],\n '020A': ['SQ', '1', 'SourceWaveformSequence'],\n '020C': ['LO', '1', 'ChannelDerivationDescription'],\n '0210': ['DS', '1', 'ChannelSensitivity'],\n '0211': ['SQ', '1', 'ChannelSensitivityUnitsSequence'],\n '0212': ['DS', '1', 'ChannelSensitivityCorrectionFactor'],\n '0213': ['DS', '1', 'ChannelBaseline'],\n '0214': ['DS', '1', 'ChannelTimeSkew'],\n '0215': ['DS', '1', 'ChannelSampleSkew'],\n '0218': ['DS', '1', 'ChannelOffset'],\n '021A': ['US', '1', 'WaveformBitsStored'],\n '0220': ['DS', '1', 'FilterLowFrequency'],\n '0221': ['DS', '1', 'FilterHighFrequency'],\n '0222': ['DS', '1', 'NotchFilterFrequency'],\n '0223': ['DS', '1', 'NotchFilterBandwidth'],\n '0230': ['FL', '1', 'WaveformDataDisplayScale'],\n '0231': ['US', '3', 'WaveformDisplayBackgroundCIELabValue'],\n '0240': ['SQ', '1', 'WaveformPresentationGroupSequence'],\n '0241': ['US', '1', 'PresentationGroupNumber'],\n '0242': ['SQ', '1', 'ChannelDisplaySequence'],\n '0244': ['US', '3', 'ChannelRecommendedDisplayCIELabValue'],\n '0245': ['FL', '1', 'ChannelPosition'],\n '0246': ['CS', '1', 'DisplayShadingFlag'],\n '0247': ['FL', '1', 'FractionalChannelDisplayScale'],\n '0248': ['FL', '1', 'AbsoluteChannelDisplayScale'],\n '0300': ['SQ', '1', 'MultiplexedAudioChannelsDescriptionCodeSequence'],\n '0301': ['IS', '1', 'ChannelIdentificationCode'],\n '0302': ['CS', '1', 'ChannelMode'],\n '0310': ['UI', '1', 'MultiplexGroupUID'],\n '0311': ['DS', '1', 'PowerlineFrequency'],\n '0312': ['SQ', '1', 'ChannelImpedanceSequence'],\n '0313': ['DS', '1', 'ImpedanceValue'],\n '0314': ['DT', '1', 'ImpedanceMeasurementDateTime'],\n '0315': ['DS', '1', 'ImpedanceMeasurementFrequency'],\n '0316': ['CS', '1', 'ImpedanceMeasurementCurrentType']\n },\n '0040': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['AE', '1-n', 'ScheduledStationAETitle'],\n '0002': ['DA', '1', 'ScheduledProcedureStepStartDate'],\n '0003': ['TM', '1', 'ScheduledProcedureStepStartTime'],\n '0004': ['DA', '1', 'ScheduledProcedureStepEndDate'],\n '0005': ['TM', '1', 'ScheduledProcedureStepEndTime'],\n '0006': ['PN', '1', 'ScheduledPerformingPhysicianName'],\n '0007': ['LO', '1', 'ScheduledProcedureStepDescription'],\n '0008': ['SQ', '1', 'ScheduledProtocolCodeSequence'],\n '0009': ['SH', '1', 'ScheduledProcedureStepID'],\n '000A': ['SQ', '1', 'StageCodeSequence'],\n '000B': ['SQ', '1', 'ScheduledPerformingPhysicianIdentificationSequence'],\n '0010': ['SH', '1-n', 'ScheduledStationName'],\n '0011': ['SH', '1', 'ScheduledProcedureStepLocation'],\n '0012': ['LO', '1', 'PreMedication'],\n '0020': ['CS', '1', 'ScheduledProcedureStepStatus'],\n '0026': ['SQ', '1', 'OrderPlacerIdentifierSequence'],\n '0027': ['SQ', '1', 'OrderFillerIdentifierSequence'],\n '0031': ['UT', '1', 'LocalNamespaceEntityID'],\n '0032': ['UT', '1', 'UniversalEntityID'],\n '0033': ['CS', '1', 'UniversalEntityIDType'],\n '0035': ['CS', '1', 'IdentifierTypeCode'],\n '0036': ['SQ', '1', 'AssigningFacilitySequence'],\n '0039': ['SQ', '1', 'AssigningJurisdictionCodeSequence'],\n '003A': ['SQ', '1', 'AssigningAgencyOrDepartmentCodeSequence'],\n '0100': ['SQ', '1', 'ScheduledProcedureStepSequence'],\n '0220': ['SQ', '1', 'ReferencedNonImageCompositeSOPInstanceSequence'],\n '0241': ['AE', '1', 'PerformedStationAETitle'],\n '0242': ['SH', '1', 'PerformedStationName'],\n '0243': ['SH', '1', 'PerformedLocation'],\n '0244': ['DA', '1', 'PerformedProcedureStepStartDate'],\n '0245': ['TM', '1', 'PerformedProcedureStepStartTime'],\n '0250': ['DA', '1', 'PerformedProcedureStepEndDate'],\n '0251': ['TM', '1', 'PerformedProcedureStepEndTime'],\n '0252': ['CS', '1', 'PerformedProcedureStepStatus'],\n '0253': ['SH', '1', 'PerformedProcedureStepID'],\n '0254': ['LO', '1', 'PerformedProcedureStepDescription'],\n '0255': ['LO', '1', 'PerformedProcedureTypeDescription'],\n '0260': ['SQ', '1', 'PerformedProtocolCodeSequence'],\n '0261': ['CS', '1', 'PerformedProtocolType'],\n '0270': ['SQ', '1', 'ScheduledStepAttributesSequence'],\n '0275': ['SQ', '1', 'RequestAttributesSequence'],\n '0280': ['ST', '1', 'CommentsOnThePerformedProcedureStep'],\n '0281': ['SQ', '1', 'PerformedProcedureStepDiscontinuationReasonCodeSequence'],\n '0293': ['SQ', '1', 'QuantitySequence'],\n '0294': ['DS', '1', 'Quantity'],\n '0295': ['SQ', '1', 'MeasuringUnitsSequence'],\n '0296': ['SQ', '1', 'BillingItemSequence'],\n '0300': ['US', '1', 'TotalTimeOfFluoroscopy'],\n '0301': ['US', '1', 'TotalNumberOfExposures'],\n '0302': ['US', '1', 'EntranceDose'],\n '0303': ['US', '1-2', 'ExposedArea'],\n '0306': ['DS', '1', 'DistanceSourceToEntrance'],\n '0307': ['DS', '1', 'DistanceSourceToSupport'],\n '030E': ['SQ', '1', 'ExposureDoseSequence'],\n '0310': ['ST', '1', 'CommentsOnRadiationDose'],\n '0312': ['DS', '1', 'XRayOutput'],\n '0314': ['DS', '1', 'HalfValueLayer'],\n '0316': ['DS', '1', 'OrganDose'],\n '0318': ['CS', '1', 'OrganExposed'],\n '0320': ['SQ', '1', 'BillingProcedureStepSequence'],\n '0321': ['SQ', '1', 'FilmConsumptionSequence'],\n '0324': ['SQ', '1', 'BillingSuppliesAndDevicesSequence'],\n '0330': ['SQ', '1', 'ReferencedProcedureStepSequence'],\n '0340': ['SQ', '1', 'PerformedSeriesSequence'],\n '0400': ['LT', '1', 'CommentsOnTheScheduledProcedureStep'],\n '0440': ['SQ', '1', 'ProtocolContextSequence'],\n '0441': ['SQ', '1', 'ContentItemModifierSequence'],\n '0500': ['SQ', '1', 'ScheduledSpecimenSequence'],\n '050A': ['LO', '1', 'SpecimenAccessionNumber'],\n '0512': ['LO', '1', 'ContainerIdentifier'],\n '0513': ['SQ', '1', 'IssuerOfTheContainerIdentifierSequence'],\n '0515': ['SQ', '1', 'AlternateContainerIdentifierSequence'],\n '0518': ['SQ', '1', 'ContainerTypeCodeSequence'],\n '051A': ['LO', '1', 'ContainerDescription'],\n '0520': ['SQ', '1', 'ContainerComponentSequence'],\n '0550': ['SQ', '1', 'SpecimenSequence'],\n '0551': ['LO', '1', 'SpecimenIdentifier'],\n '0552': ['SQ', '1', 'SpecimenDescriptionSequenceTrial'],\n '0553': ['ST', '1', 'SpecimenDescriptionTrial'],\n '0554': ['UI', '1', 'SpecimenUID'],\n '0555': ['SQ', '1', 'AcquisitionContextSequence'],\n '0556': ['ST', '1', 'AcquisitionContextDescription'],\n '0560': ['SQ', '1', 'SpecimenDescriptionSequence'],\n '0562': ['SQ', '1', 'IssuerOfTheSpecimenIdentifierSequence'],\n '059A': ['SQ', '1', 'SpecimenTypeCodeSequence'],\n '0600': ['LO', '1', 'SpecimenShortDescription'],\n '0602': ['UT', '1', 'SpecimenDetailedDescription'],\n '0610': ['SQ', '1', 'SpecimenPreparationSequence'],\n '0612': ['SQ', '1', 'SpecimenPreparationStepContentItemSequence'],\n '0620': ['SQ', '1', 'SpecimenLocalizationContentItemSequence'],\n '06FA': ['LO', '1', 'SlideIdentifier'],\n '0710': ['SQ', '1', 'WholeSlideMicroscopyImageFrameTypeSequence'],\n '071A': ['SQ', '1', 'ImageCenterPointCoordinatesSequence'],\n '072A': ['DS', '1', 'XOffsetInSlideCoordinateSystem'],\n '073A': ['DS', '1', 'YOffsetInSlideCoordinateSystem'],\n '074A': ['DS', '1', 'ZOffsetInSlideCoordinateSystem'],\n '08D8': ['SQ', '1', 'PixelSpacingSequence'],\n '08DA': ['SQ', '1', 'CoordinateSystemAxisCodeSequence'],\n '08EA': ['SQ', '1', 'MeasurementUnitsCodeSequence'],\n '09F8': ['SQ', '1', 'VitalStainCodeSequenceTrial'],\n '1001': ['SH', '1', 'RequestedProcedureID'],\n '1002': ['LO', '1', 'ReasonForTheRequestedProcedure'],\n '1003': ['SH', '1', 'RequestedProcedurePriority'],\n '1004': ['LO', '1', 'PatientTransportArrangements'],\n '1005': ['LO', '1', 'RequestedProcedureLocation'],\n '1006': ['SH', '1', 'PlacerOrderNumberProcedure'],\n '1007': ['SH', '1', 'FillerOrderNumberProcedure'],\n '1008': ['LO', '1', 'ConfidentialityCode'],\n '1009': ['SH', '1', 'ReportingPriority'],\n '100A': ['SQ', '1', 'ReasonForRequestedProcedureCodeSequence'],\n '1010': ['PN', '1-n', 'NamesOfIntendedRecipientsOfResults'],\n '1011': ['SQ', '1', 'IntendedRecipientsOfResultsIdentificationSequence'],\n '1012': ['SQ', '1', 'ReasonForPerformedProcedureCodeSequence'],\n '1060': ['LO', '1', 'RequestedProcedureDescriptionTrial'],\n '1101': ['SQ', '1', 'PersonIdentificationCodeSequence'],\n '1102': ['ST', '1', 'PersonAddress'],\n '1103': ['LO', '1-n', 'PersonTelephoneNumbers'],\n '1104': ['LT', '1', 'PersonTelecomInformation'],\n '1400': ['LT', '1', 'RequestedProcedureComments'],\n '2001': ['LO', '1', 'ReasonForTheImagingServiceRequest'],\n '2004': ['DA', '1', 'IssueDateOfImagingServiceRequest'],\n '2005': ['TM', '1', 'IssueTimeOfImagingServiceRequest'],\n '2006': ['SH', '1', 'PlacerOrderNumberImagingServiceRequestRetired'],\n '2007': ['SH', '1', 'FillerOrderNumberImagingServiceRequestRetired'],\n '2008': ['PN', '1', 'OrderEnteredBy'],\n '2009': ['SH', '1', 'OrderEntererLocation'],\n '2010': ['SH', '1', 'OrderCallbackPhoneNumber'],\n '2011': ['LT', '1', 'OrderCallbackTelecomInformation'],\n '2016': ['LO', '1', 'PlacerOrderNumberImagingServiceRequest'],\n '2017': ['LO', '1', 'FillerOrderNumberImagingServiceRequest'],\n '2400': ['LT', '1', 'ImagingServiceRequestComments'],\n '3001': ['LO', '1', 'ConfidentialityConstraintOnPatientDataDescription'],\n '4001': ['CS', '1', 'GeneralPurposeScheduledProcedureStepStatus'],\n '4002': ['CS', '1', 'GeneralPurposePerformedProcedureStepStatus'],\n '4003': ['CS', '1', 'GeneralPurposeScheduledProcedureStepPriority'],\n '4004': ['SQ', '1', 'ScheduledProcessingApplicationsCodeSequence'],\n '4005': ['DT', '1', 'ScheduledProcedureStepStartDateTime'],\n '4006': ['CS', '1', 'MultipleCopiesFlag'],\n '4007': ['SQ', '1', 'PerformedProcessingApplicationsCodeSequence'],\n '4008': ['DT', '1', 'ScheduledProcedureStepExpirationDateTime'],\n '4009': ['SQ', '1', 'HumanPerformerCodeSequence'],\n '4010': ['DT', '1', 'ScheduledProcedureStepModificationDateTime'],\n '4011': ['DT', '1', 'ExpectedCompletionDateTime'],\n '4015': ['SQ', '1', 'ResultingGeneralPurposePerformedProcedureStepsSequence'],\n '4016': ['SQ', '1', 'ReferencedGeneralPurposeScheduledProcedureStepSequence'],\n '4018': ['SQ', '1', 'ScheduledWorkitemCodeSequence'],\n '4019': ['SQ', '1', 'PerformedWorkitemCodeSequence'],\n '4020': ['CS', '1', 'InputAvailabilityFlag'],\n '4021': ['SQ', '1', 'InputInformationSequence'],\n '4022': ['SQ', '1', 'RelevantInformationSequence'],\n '4023': ['UI', '1', 'ReferencedGeneralPurposeScheduledProcedureStepTransactionUID'],\n '4025': ['SQ', '1', 'ScheduledStationNameCodeSequence'],\n '4026': ['SQ', '1', 'ScheduledStationClassCodeSequence'],\n '4027': ['SQ', '1', 'ScheduledStationGeographicLocationCodeSequence'],\n '4028': ['SQ', '1', 'PerformedStationNameCodeSequence'],\n '4029': ['SQ', '1', 'PerformedStationClassCodeSequence'],\n '4030': ['SQ', '1', 'PerformedStationGeographicLocationCodeSequence'],\n '4031': ['SQ', '1', 'RequestedSubsequentWorkitemCodeSequence'],\n '4032': ['SQ', '1', 'NonDICOMOutputCodeSequence'],\n '4033': ['SQ', '1', 'OutputInformationSequence'],\n '4034': ['SQ', '1', 'ScheduledHumanPerformersSequence'],\n '4035': ['SQ', '1', 'ActualHumanPerformersSequence'],\n '4036': ['LO', '1', 'HumanPerformerOrganization'],\n '4037': ['PN', '1', 'HumanPerformerName'],\n '4040': ['CS', '1', 'RawDataHandling'],\n '4041': ['CS', '1', 'InputReadinessState'],\n '4050': ['DT', '1', 'PerformedProcedureStepStartDateTime'],\n '4051': ['DT', '1', 'PerformedProcedureStepEndDateTime'],\n '4052': ['DT', '1', 'ProcedureStepCancellationDateTime'],\n '4070': ['SQ', '1', 'OutputDestinationSequence'],\n '4071': ['SQ', '1', 'DICOMStorageSequence'],\n '4072': ['SQ', '1', 'STOWRSStorageSequence'],\n '4073': ['UR', '1', 'StorageURL'],\n '4074': ['SQ', '1', 'XDSStorageSequence'],\n '8302': ['DS', '1', 'EntranceDoseInmGy'],\n '8303': ['CS', '1', 'EntranceDoseDerivation'],\n '9092': ['SQ', '1', 'ParametricMapFrameTypeSequence'],\n '9094': ['SQ', '1', 'ReferencedImageRealWorldValueMappingSequence'],\n '9096': ['SQ', '1', 'RealWorldValueMappingSequence'],\n '9098': ['SQ', '1', 'PixelValueMappingCodeSequence'],\n '9210': ['SH', '1', 'LUTLabel'],\n '9211': ['xs', '1', 'RealWorldValueLastValueMapped'],\n '9212': ['FD', '1-n', 'RealWorldValueLUTData'],\n '9213': ['FD', '1', 'DoubleFloatRealWorldValueLastValueMapped'],\n '9214': ['FD', '1', 'DoubleFloatRealWorldValueFirstValueMapped'],\n '9216': ['xs', '1', 'RealWorldValueFirstValueMapped'],\n '9220': ['SQ', '1', 'QuantityDefinitionSequence'],\n '9224': ['FD', '1', 'RealWorldValueIntercept'],\n '9225': ['FD', '1', 'RealWorldValueSlope'],\n 'A007': ['CS', '1', 'FindingsFlagTrial'],\n 'A010': ['CS', '1', 'RelationshipType'],\n 'A020': ['SQ', '1', 'FindingsSequenceTrial'],\n 'A021': ['UI', '1', 'FindingsGroupUIDTrial'],\n 'A022': ['UI', '1', 'ReferencedFindingsGroupUIDTrial'],\n 'A023': ['DA', '1', 'FindingsGroupRecordingDateTrial'],\n 'A024': ['TM', '1', 'FindingsGroupRecordingTimeTrial'],\n 'A026': ['SQ', '1', 'FindingsSourceCategoryCodeSequenceTrial'],\n 'A027': ['LO', '1', 'VerifyingOrganization'],\n 'A028': ['SQ', '1', 'DocumentingOrganizationIdentifierCodeSequenceTrial'],\n 'A030': ['DT', '1', 'VerificationDateTime'],\n 'A032': ['DT', '1', 'ObservationDateTime'],\n 'A033': ['DT', '1', 'ObservationStartDateTime'],\n 'A040': ['CS', '1', 'ValueType'],\n 'A043': ['SQ', '1', 'ConceptNameCodeSequence'],\n 'A047': ['LO', '1', 'MeasurementPrecisionDescriptionTrial'],\n 'A050': ['CS', '1', 'ContinuityOfContent'],\n 'A057': ['CS', '1-n', 'UrgencyOrPriorityAlertsTrial'],\n 'A060': ['LO', '1', 'SequencingIndicatorTrial'],\n 'A066': ['SQ', '1', 'DocumentIdentifierCodeSequenceTrial'],\n 'A067': ['PN', '1', 'DocumentAuthorTrial'],\n 'A068': ['SQ', '1', 'DocumentAuthorIdentifierCodeSequenceTrial'],\n 'A070': ['SQ', '1', 'IdentifierCodeSequenceTrial'],\n 'A073': ['SQ', '1', 'VerifyingObserverSequence'],\n 'A074': ['OB', '1', 'ObjectBinaryIdentifierTrial'],\n 'A075': ['PN', '1', 'VerifyingObserverName'],\n 'A076': ['SQ', '1', 'DocumentingObserverIdentifierCodeSequenceTrial'],\n 'A078': ['SQ', '1', 'AuthorObserverSequence'],\n 'A07A': ['SQ', '1', 'ParticipantSequence'],\n 'A07C': ['SQ', '1', 'CustodialOrganizationSequence'],\n 'A080': ['CS', '1', 'ParticipationType'],\n 'A082': ['DT', '1', 'ParticipationDateTime'],\n 'A084': ['CS', '1', 'ObserverType'],\n 'A085': ['SQ', '1', 'ProcedureIdentifierCodeSequenceTrial'],\n 'A088': ['SQ', '1', 'VerifyingObserverIdentificationCodeSequence'],\n 'A089': ['OB', '1', 'ObjectDirectoryBinaryIdentifierTrial'],\n 'A090': ['SQ', '1', 'EquivalentCDADocumentSequence'],\n 'A0B0': ['US', '2-2n', 'ReferencedWaveformChannels'],\n 'A110': ['DA', '1', 'DateOfDocumentOrVerbalTransactionTrial'],\n 'A112': ['TM', '1', 'TimeOfDocumentCreationOrVerbalTransactionTrial'],\n 'A120': ['DT', '1', 'DateTime'],\n 'A121': ['DA', '1', 'Date'],\n 'A122': ['TM', '1', 'Time'],\n 'A123': ['PN', '1', 'PersonName'],\n 'A124': ['UI', '1', 'UID'],\n 'A125': ['CS', '2', 'ReportStatusIDTrial'],\n 'A130': ['CS', '1', 'TemporalRangeType'],\n 'A132': ['UL', '1-n', 'ReferencedSamplePositions'],\n 'A136': ['US', '1-n', 'ReferencedFrameNumbers'],\n 'A138': ['DS', '1-n', 'ReferencedTimeOffsets'],\n 'A13A': ['DT', '1-n', 'ReferencedDateTime'],\n 'A160': ['UT', '1', 'TextValue'],\n 'A161': ['FD', '1-n', 'FloatingPointValue'],\n 'A162': ['SL', '1-n', 'RationalNumeratorValue'],\n 'A163': ['UL', '1-n', 'RationalDenominatorValue'],\n 'A167': ['SQ', '1', 'ObservationCategoryCodeSequenceTrial'],\n 'A168': ['SQ', '1', 'ConceptCodeSequence'],\n 'A16A': ['ST', '1', 'BibliographicCitationTrial'],\n 'A170': ['SQ', '1', 'PurposeOfReferenceCodeSequence'],\n 'A171': ['UI', '1', 'ObservationUID'],\n 'A172': ['UI', '1', 'ReferencedObservationUIDTrial'],\n 'A173': ['CS', '1', 'ReferencedObservationClassTrial'],\n 'A174': ['CS', '1', 'ReferencedObjectObservationClassTrial'],\n 'A180': ['US', '1', 'AnnotationGroupNumber'],\n 'A192': ['DA', '1', 'ObservationDateTrial'],\n 'A193': ['TM', '1', 'ObservationTimeTrial'],\n 'A194': ['CS', '1', 'MeasurementAutomationTrial'],\n 'A195': ['SQ', '1', 'ModifierCodeSequence'],\n 'A224': ['ST', '1', 'IdentificationDescriptionTrial'],\n 'A290': ['CS', '1', 'CoordinatesSetGeometricTypeTrial'],\n 'A296': ['SQ', '1', 'AlgorithmCodeSequenceTrial'],\n 'A297': ['ST', '1', 'AlgorithmDescriptionTrial'],\n 'A29A': ['SL', '2-2n', 'PixelCoordinatesSetTrial'],\n 'A300': ['SQ', '1', 'MeasuredValueSequence'],\n 'A301': ['SQ', '1', 'NumericValueQualifierCodeSequence'],\n 'A307': ['PN', '1', 'CurrentObserverTrial'],\n 'A30A': ['DS', '1-n', 'NumericValue'],\n 'A313': ['SQ', '1', 'ReferencedAccessionSequenceTrial'],\n 'A33A': ['ST', '1', 'ReportStatusCommentTrial'],\n 'A340': ['SQ', '1', 'ProcedureContextSequenceTrial'],\n 'A352': ['PN', '1', 'VerbalSourceTrial'],\n 'A353': ['ST', '1', 'AddressTrial'],\n 'A354': ['LO', '1', 'TelephoneNumberTrial'],\n 'A358': ['SQ', '1', 'VerbalSourceIdentifierCodeSequenceTrial'],\n 'A360': ['SQ', '1', 'PredecessorDocumentsSequence'],\n 'A370': ['SQ', '1', 'ReferencedRequestSequence'],\n 'A372': ['SQ', '1', 'PerformedProcedureCodeSequence'],\n 'A375': ['SQ', '1', 'CurrentRequestedProcedureEvidenceSequence'],\n 'A380': ['SQ', '1', 'ReportDetailSequenceTrial'],\n 'A385': ['SQ', '1', 'PertinentOtherEvidenceSequence'],\n 'A390': ['SQ', '1', 'HL7StructuredDocumentReferenceSequence'],\n 'A402': ['UI', '1', 'ObservationSubjectUIDTrial'],\n 'A403': ['CS', '1', 'ObservationSubjectClassTrial'],\n 'A404': ['SQ', '1', 'ObservationSubjectTypeCodeSequenceTrial'],\n 'A491': ['CS', '1', 'CompletionFlag'],\n 'A492': ['LO', '1', 'CompletionFlagDescription'],\n 'A493': ['CS', '1', 'VerificationFlag'],\n 'A494': ['CS', '1', 'ArchiveRequested'],\n 'A496': ['CS', '1', 'PreliminaryFlag'],\n 'A504': ['SQ', '1', 'ContentTemplateSequence'],\n 'A525': ['SQ', '1', 'IdenticalDocumentsSequence'],\n 'A600': ['CS', '1', 'ObservationSubjectContextFlagTrial'],\n 'A601': ['CS', '1', 'ObserverContextFlagTrial'],\n 'A603': ['CS', '1', 'ProcedureContextFlagTrial'],\n 'A730': ['SQ', '1', 'ContentSequence'],\n 'A731': ['SQ', '1', 'RelationshipSequenceTrial'],\n 'A732': ['SQ', '1', 'RelationshipTypeCodeSequenceTrial'],\n 'A744': ['SQ', '1', 'LanguageCodeSequenceTrial'],\n 'A801': ['SQ', '1', 'TabulatedValuesSequence'],\n 'A802': ['UL', '1', 'NumberOfTableRows'],\n 'A803': ['UL', '1', 'NumberOfTableColumns'],\n 'A804': ['UL', '1', 'TableRowNumber'],\n 'A805': ['UL', '1', 'TableColumnNumber'],\n 'A806': ['SQ', '1', 'TableRowDefinitionSequence'],\n 'A807': ['SQ', '1', 'TableColumnDefinitionSequence'],\n 'A808': ['SQ', '1', 'CellValuesSequence'],\n 'A992': ['ST', '1', 'UniformResourceLocatorTrial'],\n 'B020': ['SQ', '1', 'WaveformAnnotationSequence'],\n 'DB00': ['CS', '1', 'TemplateIdentifier'],\n 'DB06': ['DT', '1', 'TemplateVersion'],\n 'DB07': ['DT', '1', 'TemplateLocalVersion'],\n 'DB0B': ['CS', '1', 'TemplateExtensionFlag'],\n 'DB0C': ['UI', '1', 'TemplateExtensionOrganizationUID'],\n 'DB0D': ['UI', '1', 'TemplateExtensionCreatorUID'],\n 'DB73': ['UL', '1-n', 'ReferencedContentItemIdentifier'],\n 'E001': ['ST', '1', 'HL7InstanceIdentifier'],\n 'E004': ['DT', '1', 'HL7DocumentEffectiveTime'],\n 'E006': ['SQ', '1', 'HL7DocumentTypeCodeSequence'],\n 'E008': ['SQ', '1', 'DocumentClassCodeSequence'],\n 'E010': ['UR', '1', 'RetrieveURI'],\n 'E011': ['UI', '1', 'RetrieveLocationUID'],\n 'E020': ['CS', '1', 'TypeOfInstances'],\n 'E021': ['SQ', '1', 'DICOMRetrievalSequence'],\n 'E022': ['SQ', '1', 'DICOMMediaRetrievalSequence'],\n 'E023': ['SQ', '1', 'WADORetrievalSequence'],\n 'E024': ['SQ', '1', 'XDSRetrievalSequence'],\n 'E025': ['SQ', '1', 'WADORSRetrievalSequence'],\n 'E030': ['UI', '1', 'RepositoryUniqueID'],\n 'E031': ['UI', '1', 'HomeCommunityID']\n },\n '0042': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['ST', '1', 'DocumentTitle'],\n '0011': ['OB', '1', 'EncapsulatedDocument'],\n '0012': ['LO', '1', 'MIMETypeOfEncapsulatedDocument'],\n '0013': ['SQ', '1', 'SourceInstanceSequence'],\n '0014': ['LO', '1-n', 'ListOfMIMETypes'],\n '0015': ['UL', '1', 'EncapsulatedDocumentLength']\n },\n '0044': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['ST', '1', 'ProductPackageIdentifier'],\n '0002': ['CS', '1', 'SubstanceAdministrationApproval'],\n '0003': ['LT', '1', 'ApprovalStatusFurtherDescription'],\n '0004': ['DT', '1', 'ApprovalStatusDateTime'],\n '0007': ['SQ', '1', 'ProductTypeCodeSequence'],\n '0008': ['LO', '1-n', 'ProductName'],\n '0009': ['LT', '1', 'ProductDescription'],\n '000A': ['LO', '1', 'ProductLotIdentifier'],\n '000B': ['DT', '1', 'ProductExpirationDateTime'],\n '0010': ['DT', '1', 'SubstanceAdministrationDateTime'],\n '0011': ['LO', '1', 'SubstanceAdministrationNotes'],\n '0012': ['LO', '1', 'SubstanceAdministrationDeviceID'],\n '0013': ['SQ', '1', 'ProductParameterSequence'],\n '0019': ['SQ', '1', 'SubstanceAdministrationParameterSequence'],\n '0100': ['SQ', '1', 'ApprovalSequence'],\n '0101': ['SQ', '1', 'AssertionCodeSequence'],\n '0102': ['UI', '1', 'AssertionUID'],\n '0103': ['SQ', '1', 'AsserterIdentificationSequence'],\n '0104': ['DT', '1', 'AssertionDateTime'],\n '0105': ['DT', '1', 'AssertionExpirationDateTime'],\n '0106': ['UT', '1', 'AssertionComments'],\n '0107': ['SQ', '1', 'RelatedAssertionSequence'],\n '0108': ['UI', '1', 'ReferencedAssertionUID'],\n '0109': ['SQ', '1', 'ApprovalSubjectSequence'],\n '010A': ['SQ', '1', 'OrganizationalRoleCodeSequence']\n },\n '0046': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0012': ['LO', '1', 'LensDescription'],\n '0014': ['SQ', '1', 'RightLensSequence'],\n '0015': ['SQ', '1', 'LeftLensSequence'],\n '0016': ['SQ', '1', 'UnspecifiedLateralityLensSequence'],\n '0018': ['SQ', '1', 'CylinderSequence'],\n '0028': ['SQ', '1', 'PrismSequence'],\n '0030': ['FD', '1', 'HorizontalPrismPower'],\n '0032': ['CS', '1', 'HorizontalPrismBase'],\n '0034': ['FD', '1', 'VerticalPrismPower'],\n '0036': ['CS', '1', 'VerticalPrismBase'],\n '0038': ['CS', '1', 'LensSegmentType'],\n '0040': ['FD', '1', 'OpticalTransmittance'],\n '0042': ['FD', '1', 'ChannelWidth'],\n '0044': ['FD', '1', 'PupilSize'],\n '0046': ['FD', '1', 'CornealSize'],\n '0047': ['SQ', '1', 'CornealSizeSequence'],\n '0050': ['SQ', '1', 'AutorefractionRightEyeSequence'],\n '0052': ['SQ', '1', 'AutorefractionLeftEyeSequence'],\n '0060': ['FD', '1', 'DistancePupillaryDistance'],\n '0062': ['FD', '1', 'NearPupillaryDistance'],\n '0063': ['FD', '1', 'IntermediatePupillaryDistance'],\n '0064': ['FD', '1', 'OtherPupillaryDistance'],\n '0070': ['SQ', '1', 'KeratometryRightEyeSequence'],\n '0071': ['SQ', '1', 'KeratometryLeftEyeSequence'],\n '0074': ['SQ', '1', 'SteepKeratometricAxisSequence'],\n '0075': ['FD', '1', 'RadiusOfCurvature'],\n '0076': ['FD', '1', 'KeratometricPower'],\n '0077': ['FD', '1', 'KeratometricAxis'],\n '0080': ['SQ', '1', 'FlatKeratometricAxisSequence'],\n '0092': ['CS', '1', 'BackgroundColor'],\n '0094': ['CS', '1', 'Optotype'],\n '0095': ['CS', '1', 'OptotypePresentation'],\n '0097': ['SQ', '1', 'SubjectiveRefractionRightEyeSequence'],\n '0098': ['SQ', '1', 'SubjectiveRefractionLeftEyeSequence'],\n '0100': ['SQ', '1', 'AddNearSequence'],\n '0101': ['SQ', '1', 'AddIntermediateSequence'],\n '0102': ['SQ', '1', 'AddOtherSequence'],\n '0104': ['FD', '1', 'AddPower'],\n '0106': ['FD', '1', 'ViewingDistance'],\n '0110': ['SQ', '1', 'CorneaMeasurementsSequence'],\n '0111': ['SQ', '1', 'SourceOfCorneaMeasurementDataCodeSequence'],\n '0112': ['SQ', '1', 'SteepCornealAxisSequence'],\n '0113': ['SQ', '1', 'FlatCornealAxisSequence'],\n '0114': ['FD', '1', 'CornealPower'],\n '0115': ['FD', '1', 'CornealAxis'],\n '0116': ['SQ', '1', 'CorneaMeasurementMethodCodeSequence'],\n '0117': ['FL', '1', 'RefractiveIndexOfCornea'],\n '0118': ['FL', '1', 'RefractiveIndexOfAqueousHumor'],\n '0121': ['SQ', '1', 'VisualAcuityTypeCodeSequence'],\n '0122': ['SQ', '1', 'VisualAcuityRightEyeSequence'],\n '0123': ['SQ', '1', 'VisualAcuityLeftEyeSequence'],\n '0124': ['SQ', '1', 'VisualAcuityBothEyesOpenSequence'],\n '0125': ['CS', '1', 'ViewingDistanceType'],\n '0135': ['SS', '2', 'VisualAcuityModifiers'],\n '0137': ['FD', '1', 'DecimalVisualAcuity'],\n '0139': ['LO', '1', 'OptotypeDetailedDefinition'],\n '0145': ['SQ', '1', 'ReferencedRefractiveMeasurementsSequence'],\n '0146': ['FD', '1', 'SpherePower'],\n '0147': ['FD', '1', 'CylinderPower'],\n '0201': ['CS', '1', 'CornealTopographySurface'],\n '0202': ['FL', '2', 'CornealVertexLocation'],\n '0203': ['FL', '1', 'PupilCentroidXCoordinate'],\n '0204': ['FL', '1', 'PupilCentroidYCoordinate'],\n '0205': ['FL', '1', 'EquivalentPupilRadius'],\n '0207': ['SQ', '1', 'CornealTopographyMapTypeCodeSequence'],\n '0208': ['IS', '2-2n', 'VerticesOfTheOutlineOfPupil'],\n '0210': ['SQ', '1', 'CornealTopographyMappingNormalsSequence'],\n '0211': ['SQ', '1', 'MaximumCornealCurvatureSequence'],\n '0212': ['FL', '1', 'MaximumCornealCurvature'],\n '0213': ['FL', '2', 'MaximumCornealCurvatureLocation'],\n '0215': ['SQ', '1', 'MinimumKeratometricSequence'],\n '0218': ['SQ', '1', 'SimulatedKeratometricCylinderSequence'],\n '0220': ['FL', '1', 'AverageCornealPower'],\n '0224': ['FL', '1', 'CornealISValue'],\n '0227': ['FL', '1', 'AnalyzedArea'],\n '0230': ['FL', '1', 'SurfaceRegularityIndex'],\n '0232': ['FL', '1', 'SurfaceAsymmetryIndex'],\n '0234': ['FL', '1', 'CornealEccentricityIndex'],\n '0236': ['FL', '1', 'KeratoconusPredictionIndex'],\n '0238': ['FL', '1', 'DecimalPotentialVisualAcuity'],\n '0242': ['CS', '1', 'CornealTopographyMapQualityEvaluation'],\n '0244': ['SQ', '1', 'SourceImageCornealProcessedDataSequence'],\n '0247': ['FL', '3', 'CornealPointLocation'],\n '0248': ['CS', '1', 'CornealPointEstimated'],\n '0249': ['FL', '1', 'AxialPower'],\n '0250': ['FL', '1', 'TangentialPower'],\n '0251': ['FL', '1', 'RefractivePower'],\n '0252': ['FL', '1', 'RelativeElevation'],\n '0253': ['FL', '1', 'CornealWavefront']\n },\n '0048': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['FL', '1', 'ImagedVolumeWidth'],\n '0002': ['FL', '1', 'ImagedVolumeHeight'],\n '0003': ['FL', '1', 'ImagedVolumeDepth'],\n '0006': ['UL', '1', 'TotalPixelMatrixColumns'],\n '0007': ['UL', '1', 'TotalPixelMatrixRows'],\n '0008': ['SQ', '1', 'TotalPixelMatrixOriginSequence'],\n '0010': ['CS', '1', 'SpecimenLabelInImage'],\n '0011': ['CS', '1', 'FocusMethod'],\n '0012': ['CS', '1', 'ExtendedDepthOfField'],\n '0013': ['US', '1', 'NumberOfFocalPlanes'],\n '0014': ['FL', '1', 'DistanceBetweenFocalPlanes'],\n '0015': ['US', '3', 'RecommendedAbsentPixelCIELabValue'],\n '0100': ['SQ', '1', 'IlluminatorTypeCodeSequence'],\n '0102': ['DS', '6', 'ImageOrientationSlide'],\n '0105': ['SQ', '1', 'OpticalPathSequence'],\n '0106': ['SH', '1', 'OpticalPathIdentifier'],\n '0107': ['ST', '1', 'OpticalPathDescription'],\n '0108': ['SQ', '1', 'IlluminationColorCodeSequence'],\n '0110': ['SQ', '1', 'SpecimenReferenceSequence'],\n '0111': ['DS', '1', 'CondenserLensPower'],\n '0112': ['DS', '1', 'ObjectiveLensPower'],\n '0113': ['DS', '1', 'ObjectiveLensNumericalAperture'],\n '0120': ['SQ', '1', 'PaletteColorLookupTableSequence'],\n '0200': ['SQ', '1', 'ReferencedImageNavigationSequence'],\n '0201': ['US', '2', 'TopLeftHandCornerOfLocalizerArea'],\n '0202': ['US', '2', 'BottomRightHandCornerOfLocalizerArea'],\n '0207': ['SQ', '1', 'OpticalPathIdentificationSequence'],\n '021A': ['SQ', '1', 'PlanePositionSlideSequence'],\n '021E': ['SL', '1', 'ColumnPositionInTotalImagePixelMatrix'],\n '021F': ['SL', '1', 'RowPositionInTotalImagePixelMatrix'],\n '0301': ['CS', '1', 'PixelOriginInterpretation'],\n '0302': ['UL', '1', 'NumberOfOpticalPaths'],\n '0303': ['UL', '1', 'TotalPixelMatrixFocalPlanes']\n },\n '0050': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['CS', '1', 'CalibrationImage'],\n '0010': ['SQ', '1', 'DeviceSequence'],\n '0012': ['SQ', '1', 'ContainerComponentTypeCodeSequence'],\n '0013': ['FD', '1', 'ContainerComponentThickness'],\n '0014': ['DS', '1', 'DeviceLength'],\n '0015': ['FD', '1', 'ContainerComponentWidth'],\n '0016': ['DS', '1', 'DeviceDiameter'],\n '0017': ['CS', '1', 'DeviceDiameterUnits'],\n '0018': ['DS', '1', 'DeviceVolume'],\n '0019': ['DS', '1', 'InterMarkerDistance'],\n '001A': ['CS', '1', 'ContainerComponentMaterial'],\n '001B': ['LO', '1', 'ContainerComponentID'],\n '001C': ['FD', '1', 'ContainerComponentLength'],\n '001D': ['FD', '1', 'ContainerComponentDiameter'],\n '001E': ['LO', '1', 'ContainerComponentDescription'],\n '0020': ['LO', '1', 'DeviceDescription'],\n '0021': ['ST', '1', 'LongDeviceDescription']\n },\n '0052': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['FL', '1', 'ContrastBolusIngredientPercentByVolume'],\n '0002': ['FD', '1', 'OCTFocalDistance'],\n '0003': ['FD', '1', 'BeamSpotSize'],\n '0004': ['FD', '1', 'EffectiveRefractiveIndex'],\n '0006': ['CS', '1', 'OCTAcquisitionDomain'],\n '0007': ['FD', '1', 'OCTOpticalCenterWavelength'],\n '0008': ['FD', '1', 'AxialResolution'],\n '0009': ['FD', '1', 'RangingDepth'],\n '0011': ['FD', '1', 'ALineRate'],\n '0012': ['US', '1', 'ALinesPerFrame'],\n '0013': ['FD', '1', 'CatheterRotationalRate'],\n '0014': ['FD', '1', 'ALinePixelSpacing'],\n '0016': ['SQ', '1', 'ModeOfPercutaneousAccessSequence'],\n '0025': ['SQ', '1', 'IntravascularOCTFrameTypeSequence'],\n '0026': ['CS', '1', 'OCTZOffsetApplied'],\n '0027': ['SQ', '1', 'IntravascularFrameContentSequence'],\n '0028': ['FD', '1', 'IntravascularLongitudinalDistance'],\n '0029': ['SQ', '1', 'IntravascularOCTFrameContentSequence'],\n '0030': ['SS', '1', 'OCTZOffsetCorrection'],\n '0031': ['CS', '1', 'CatheterDirectionOfRotation'],\n '0033': ['FD', '1', 'SeamLineLocation'],\n '0034': ['FD', '1', 'FirstALineLocation'],\n '0036': ['US', '1', 'SeamLineIndex'],\n '0038': ['US', '1', 'NumberOfPaddedALines'],\n '0039': ['CS', '1', 'InterpolationType'],\n '003A': ['CS', '1', 'RefractiveIndexApplied']\n },\n '0054': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1-n', 'EnergyWindowVector'],\n '0011': ['US', '1', 'NumberOfEnergyWindows'],\n '0012': ['SQ', '1', 'EnergyWindowInformationSequence'],\n '0013': ['SQ', '1', 'EnergyWindowRangeSequence'],\n '0014': ['DS', '1', 'EnergyWindowLowerLimit'],\n '0015': ['DS', '1', 'EnergyWindowUpperLimit'],\n '0016': ['SQ', '1', 'RadiopharmaceuticalInformationSequence'],\n '0017': ['IS', '1', 'ResidualSyringeCounts'],\n '0018': ['SH', '1', 'EnergyWindowName'],\n '0020': ['US', '1-n', 'DetectorVector'],\n '0021': ['US', '1', 'NumberOfDetectors'],\n '0022': ['SQ', '1', 'DetectorInformationSequence'],\n '0030': ['US', '1-n', 'PhaseVector'],\n '0031': ['US', '1', 'NumberOfPhases'],\n '0032': ['SQ', '1', 'PhaseInformationSequence'],\n '0033': ['US', '1', 'NumberOfFramesInPhase'],\n '0036': ['IS', '1', 'PhaseDelay'],\n '0038': ['IS', '1', 'PauseBetweenFrames'],\n '0039': ['CS', '1', 'PhaseDescription'],\n '0050': ['US', '1-n', 'RotationVector'],\n '0051': ['US', '1', 'NumberOfRotations'],\n '0052': ['SQ', '1', 'RotationInformationSequence'],\n '0053': ['US', '1', 'NumberOfFramesInRotation'],\n '0060': ['US', '1-n', 'RRIntervalVector'],\n '0061': ['US', '1', 'NumberOfRRIntervals'],\n '0062': ['SQ', '1', 'GatedInformationSequence'],\n '0063': ['SQ', '1', 'DataInformationSequence'],\n '0070': ['US', '1-n', 'TimeSlotVector'],\n '0071': ['US', '1', 'NumberOfTimeSlots'],\n '0072': ['SQ', '1', 'TimeSlotInformationSequence'],\n '0073': ['DS', '1', 'TimeSlotTime'],\n '0080': ['US', '1-n', 'SliceVector'],\n '0081': ['US', '1', 'NumberOfSlices'],\n '0090': ['US', '1-n', 'AngularViewVector'],\n '0100': ['US', '1-n', 'TimeSliceVector'],\n '0101': ['US', '1', 'NumberOfTimeSlices'],\n '0200': ['DS', '1', 'StartAngle'],\n '0202': ['CS', '1', 'TypeOfDetectorMotion'],\n '0210': ['IS', '1-n', 'TriggerVector'],\n '0211': ['US', '1', 'NumberOfTriggersInPhase'],\n '0220': ['SQ', '1', 'ViewCodeSequence'],\n '0222': ['SQ', '1', 'ViewModifierCodeSequence'],\n '0300': ['SQ', '1', 'RadionuclideCodeSequence'],\n '0302': ['SQ', '1', 'AdministrationRouteCodeSequence'],\n '0304': ['SQ', '1', 'RadiopharmaceuticalCodeSequence'],\n '0306': ['SQ', '1', 'CalibrationDataSequence'],\n '0308': ['US', '1', 'EnergyWindowNumber'],\n '0400': ['SH', '1', 'ImageID'],\n '0410': ['SQ', '1', 'PatientOrientationCodeSequence'],\n '0412': ['SQ', '1', 'PatientOrientationModifierCodeSequence'],\n '0414': ['SQ', '1', 'PatientGantryRelationshipCodeSequence'],\n '0500': ['CS', '1', 'SliceProgressionDirection'],\n '0501': ['CS', '1', 'ScanProgressionDirection'],\n '1000': ['CS', '2', 'SeriesType'],\n '1001': ['CS', '1', 'Units'],\n '1002': ['CS', '1', 'CountsSource'],\n '1004': ['CS', '1', 'ReprojectionMethod'],\n '1006': ['CS', '1', 'SUVType'],\n '1100': ['CS', '1', 'RandomsCorrectionMethod'],\n '1101': ['LO', '1', 'AttenuationCorrectionMethod'],\n '1102': ['CS', '1', 'DecayCorrection'],\n '1103': ['LO', '1', 'ReconstructionMethod'],\n '1104': ['LO', '1', 'DetectorLinesOfResponseUsed'],\n '1105': ['LO', '1', 'ScatterCorrectionMethod'],\n '1200': ['DS', '1', 'AxialAcceptance'],\n '1201': ['IS', '2', 'AxialMash'],\n '1202': ['IS', '1', 'TransverseMash'],\n '1203': ['DS', '2', 'DetectorElementSize'],\n '1210': ['DS', '1', 'CoincidenceWindowWidth'],\n '1220': ['CS', '1-n', 'SecondaryCountsType'],\n '1300': ['DS', '1', 'FrameReferenceTime'],\n '1310': ['IS', '1', 'PrimaryPromptsCountsAccumulated'],\n '1311': ['IS', '1-n', 'SecondaryCountsAccumulated'],\n '1320': ['DS', '1', 'SliceSensitivityFactor'],\n '1321': ['DS', '1', 'DecayFactor'],\n '1322': ['DS', '1', 'DoseCalibrationFactor'],\n '1323': ['DS', '1', 'ScatterFractionFactor'],\n '1324': ['DS', '1', 'DeadTimeFactor'],\n '1330': ['US', '1', 'ImageIndex'],\n '1400': ['CS', '1-n', 'CountsIncluded'],\n '1401': ['CS', '1', 'DeadTimeCorrectionFlag']\n },\n '0060': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '3000': ['SQ', '1', 'HistogramSequence'],\n '3002': ['US', '1', 'HistogramNumberOfBins'],\n '3004': ['xs', '1', 'HistogramFirstBinValue'],\n '3006': ['xs', '1', 'HistogramLastBinValue'],\n '3008': ['US', '1', 'HistogramBinWidth'],\n '3010': ['LO', '1', 'HistogramExplanation'],\n '3020': ['UL', '1-n', 'HistogramData']\n },\n '0062': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'SegmentationType'],\n '0002': ['SQ', '1', 'SegmentSequence'],\n '0003': ['SQ', '1', 'SegmentedPropertyCategoryCodeSequence'],\n '0004': ['US', '1', 'SegmentNumber'],\n '0005': ['LO', '1', 'SegmentLabel'],\n '0006': ['ST', '1', 'SegmentDescription'],\n '0007': ['SQ', '1', 'SegmentationAlgorithmIdentificationSequence'],\n '0008': ['CS', '1', 'SegmentAlgorithmType'],\n '0009': ['LO', '1-n', 'SegmentAlgorithmName'],\n '000A': ['SQ', '1', 'SegmentIdentificationSequence'],\n '000B': ['US', '1-n', 'ReferencedSegmentNumber'],\n '000C': ['US', '1', 'RecommendedDisplayGrayscaleValue'],\n '000D': ['US', '3', 'RecommendedDisplayCIELabValue'],\n '000E': ['US', '1', 'MaximumFractionalValue'],\n '000F': ['SQ', '1', 'SegmentedPropertyTypeCodeSequence'],\n '0010': ['CS', '1', 'SegmentationFractionalType'],\n '0011': ['SQ', '1', 'SegmentedPropertyTypeModifierCodeSequence'],\n '0012': ['SQ', '1', 'UsedSegmentsSequence'],\n '0013': ['CS', '1', 'SegmentsOverlap'],\n '0020': ['UT', '1', 'TrackingID'],\n '0021': ['UI', '1', 'TrackingUID']\n },\n '0064': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SQ', '1', 'DeformableRegistrationSequence'],\n '0003': ['UI', '1', 'SourceFrameOfReferenceUID'],\n '0005': ['SQ', '1', 'DeformableRegistrationGridSequence'],\n '0007': ['UL', '3', 'GridDimensions'],\n '0008': ['FD', '3', 'GridResolution'],\n '0009': ['OF', '1', 'VectorGridData'],\n '000F': ['SQ', '1', 'PreDeformationMatrixRegistrationSequence'],\n '0010': ['SQ', '1', 'PostDeformationMatrixRegistrationSequence']\n },\n '0066': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['UL', '1', 'NumberOfSurfaces'],\n '0002': ['SQ', '1', 'SurfaceSequence'],\n '0003': ['UL', '1', 'SurfaceNumber'],\n '0004': ['LT', '1', 'SurfaceComments'],\n '0009': ['CS', '1', 'SurfaceProcessing'],\n '000A': ['FL', '1', 'SurfaceProcessingRatio'],\n '000B': ['LO', '1', 'SurfaceProcessingDescription'],\n '000C': ['FL', '1', 'RecommendedPresentationOpacity'],\n '000D': ['CS', '1', 'RecommendedPresentationType'],\n '000E': ['CS', '1', 'FiniteVolume'],\n '0010': ['CS', '1', 'Manifold'],\n '0011': ['SQ', '1', 'SurfacePointsSequence'],\n '0012': ['SQ', '1', 'SurfacePointsNormalsSequence'],\n '0013': ['SQ', '1', 'SurfaceMeshPrimitivesSequence'],\n '0015': ['UL', '1', 'NumberOfSurfacePoints'],\n '0016': ['OF', '1', 'PointCoordinatesData'],\n '0017': ['FL', '3', 'PointPositionAccuracy'],\n '0018': ['FL', '1', 'MeanPointDistance'],\n '0019': ['FL', '1', 'MaximumPointDistance'],\n '001A': ['FL', '6', 'PointsBoundingBoxCoordinates'],\n '001B': ['FL', '3', 'AxisOfRotation'],\n '001C': ['FL', '3', 'CenterOfRotation'],\n '001E': ['UL', '1', 'NumberOfVectors'],\n '001F': ['US', '1', 'VectorDimensionality'],\n '0020': ['FL', '1-n', 'VectorAccuracy'],\n '0021': ['OF', '1', 'VectorCoordinateData'],\n '0022': ['OD', '1', 'DoublePointCoordinatesData'],\n '0023': ['OW', '1', 'TrianglePointIndexList'],\n '0024': ['OW', '1', 'EdgePointIndexList'],\n '0025': ['OW', '1', 'VertexPointIndexList'],\n '0026': ['SQ', '1', 'TriangleStripSequence'],\n '0027': ['SQ', '1', 'TriangleFanSequence'],\n '0028': ['SQ', '1', 'LineSequence'],\n '0029': ['OW', '1', 'PrimitivePointIndexList'],\n '002A': ['UL', '1', 'SurfaceCount'],\n '002B': ['SQ', '1', 'ReferencedSurfaceSequence'],\n '002C': ['UL', '1', 'ReferencedSurfaceNumber'],\n '002D': ['SQ', '1', 'SegmentSurfaceGenerationAlgorithmIdentificationSequence'],\n '002E': ['SQ', '1', 'SegmentSurfaceSourceInstanceSequence'],\n '002F': ['SQ', '1', 'AlgorithmFamilyCodeSequence'],\n '0030': ['SQ', '1', 'AlgorithmNameCodeSequence'],\n '0031': ['LO', '1', 'AlgorithmVersion'],\n '0032': ['LT', '1', 'AlgorithmParameters'],\n '0034': ['SQ', '1', 'FacetSequence'],\n '0035': ['SQ', '1', 'SurfaceProcessingAlgorithmIdentificationSequence'],\n '0036': ['LO', '1', 'AlgorithmName'],\n '0037': ['FL', '1', 'RecommendedPointRadius'],\n '0038': ['FL', '1', 'RecommendedLineThickness'],\n '0040': ['OL', '1', 'LongPrimitivePointIndexList'],\n '0041': ['OL', '1', 'LongTrianglePointIndexList'],\n '0042': ['OL', '1', 'LongEdgePointIndexList'],\n '0043': ['OL', '1', 'LongVertexPointIndexList'],\n '0101': ['SQ', '1', 'TrackSetSequence'],\n '0102': ['SQ', '1', 'TrackSequence'],\n '0103': ['OW', '1', 'RecommendedDisplayCIELabValueList'],\n '0104': ['SQ', '1', 'TrackingAlgorithmIdentificationSequence'],\n '0105': ['UL', '1', 'TrackSetNumber'],\n '0106': ['LO', '1', 'TrackSetLabel'],\n '0107': ['UT', '1', 'TrackSetDescription'],\n '0108': ['SQ', '1', 'TrackSetAnatomicalTypeCodeSequence'],\n '0121': ['SQ', '1', 'MeasurementsSequence'],\n '0124': ['SQ', '1', 'TrackSetStatisticsSequence'],\n '0125': ['OF', '1', 'FloatingPointValues'],\n '0129': ['OL', '1', 'TrackPointIndexList'],\n '0130': ['SQ', '1', 'TrackStatisticsSequence'],\n '0132': ['SQ', '1', 'MeasurementValuesSequence'],\n '0133': ['SQ', '1', 'DiffusionAcquisitionCodeSequence'],\n '0134': ['SQ', '1', 'DiffusionModelCodeSequence']\n },\n '0068': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '6210': ['LO', '1', 'ImplantSize'],\n '6221': ['LO', '1', 'ImplantTemplateVersion'],\n '6222': ['SQ', '1', 'ReplacedImplantTemplateSequence'],\n '6223': ['CS', '1', 'ImplantType'],\n '6224': ['SQ', '1', 'DerivationImplantTemplateSequence'],\n '6225': ['SQ', '1', 'OriginalImplantTemplateSequence'],\n '6226': ['DT', '1', 'EffectiveDateTime'],\n '6230': ['SQ', '1', 'ImplantTargetAnatomySequence'],\n '6260': ['SQ', '1', 'InformationFromManufacturerSequence'],\n '6265': ['SQ', '1', 'NotificationFromManufacturerSequence'],\n '6270': ['DT', '1', 'InformationIssueDateTime'],\n '6280': ['ST', '1', 'InformationSummary'],\n '62A0': ['SQ', '1', 'ImplantRegulatoryDisapprovalCodeSequence'],\n '62A5': ['FD', '1', 'OverallTemplateSpatialTolerance'],\n '62C0': ['SQ', '1', 'HPGLDocumentSequence'],\n '62D0': ['US', '1', 'HPGLDocumentID'],\n '62D5': ['LO', '1', 'HPGLDocumentLabel'],\n '62E0': ['SQ', '1', 'ViewOrientationCodeSequence'],\n '62F0': ['SQ', '1', 'ViewOrientationModifierCodeSequence'],\n '62F2': ['FD', '1', 'HPGLDocumentScaling'],\n '6300': ['OB', '1', 'HPGLDocument'],\n '6310': ['US', '1', 'HPGLContourPenNumber'],\n '6320': ['SQ', '1', 'HPGLPenSequence'],\n '6330': ['US', '1', 'HPGLPenNumber'],\n '6340': ['LO', '1', 'HPGLPenLabel'],\n '6345': ['ST', '1', 'HPGLPenDescription'],\n '6346': ['FD', '2', 'RecommendedRotationPoint'],\n '6347': ['FD', '4', 'BoundingRectangle'],\n '6350': ['US', '1-n', 'ImplantTemplate3DModelSurfaceNumber'],\n '6360': ['SQ', '1', 'SurfaceModelDescriptionSequence'],\n '6380': ['LO', '1', 'SurfaceModelLabel'],\n '6390': ['FD', '1', 'SurfaceModelScalingFactor'],\n '63A0': ['SQ', '1', 'MaterialsCodeSequence'],\n '63A4': ['SQ', '1', 'CoatingMaterialsCodeSequence'],\n '63A8': ['SQ', '1', 'ImplantTypeCodeSequence'],\n '63AC': ['SQ', '1', 'FixationMethodCodeSequence'],\n '63B0': ['SQ', '1', 'MatingFeatureSetsSequence'],\n '63C0': ['US', '1', 'MatingFeatureSetID'],\n '63D0': ['LO', '1', 'MatingFeatureSetLabel'],\n '63E0': ['SQ', '1', 'MatingFeatureSequence'],\n '63F0': ['US', '1', 'MatingFeatureID'],\n '6400': ['SQ', '1', 'MatingFeatureDegreeOfFreedomSequence'],\n '6410': ['US', '1', 'DegreeOfFreedomID'],\n '6420': ['CS', '1', 'DegreeOfFreedomType'],\n '6430': ['SQ', '1', 'TwoDMatingFeatureCoordinatesSequence'],\n '6440': ['US', '1', 'ReferencedHPGLDocumentID'],\n '6450': ['FD', '2', 'TwoDMatingPoint'],\n '6460': ['FD', '4', 'TwoDMatingAxes'],\n '6470': ['SQ', '1', 'TwoDDegreeOfFreedomSequence'],\n '6490': ['FD', '3', 'ThreeDDegreeOfFreedomAxis'],\n '64A0': ['FD', '2', 'RangeOfFreedom'],\n '64C0': ['FD', '3', 'ThreeDMatingPoint'],\n '64D0': ['FD', '9', 'ThreeDMatingAxes'],\n '64F0': ['FD', '3', 'TwoDDegreeOfFreedomAxis'],\n '6500': ['SQ', '1', 'PlanningLandmarkPointSequence'],\n '6510': ['SQ', '1', 'PlanningLandmarkLineSequence'],\n '6520': ['SQ', '1', 'PlanningLandmarkPlaneSequence'],\n '6530': ['US', '1', 'PlanningLandmarkID'],\n '6540': ['LO', '1', 'PlanningLandmarkDescription'],\n '6545': ['SQ', '1', 'PlanningLandmarkIdentificationCodeSequence'],\n '6550': ['SQ', '1', 'TwoDPointCoordinatesSequence'],\n '6560': ['FD', '2', 'TwoDPointCoordinates'],\n '6590': ['FD', '3', 'ThreeDPointCoordinates'],\n '65A0': ['SQ', '1', 'TwoDLineCoordinatesSequence'],\n '65B0': ['FD', '4', 'TwoDLineCoordinates'],\n '65D0': ['FD', '6', 'ThreeDLineCoordinates'],\n '65E0': ['SQ', '1', 'TwoDPlaneCoordinatesSequence'],\n '65F0': ['FD', '4', 'TwoDPlaneIntersection'],\n '6610': ['FD', '3', 'ThreeDPlaneOrigin'],\n '6620': ['FD', '3', 'ThreeDPlaneNormal'],\n '7001': ['CS', '1', 'ModelModification'],\n '7002': ['CS', '1', 'ModelMirroring'],\n '7003': ['SQ', '1', 'ModelUsageCodeSequence'],\n '7004': ['UI', '1', 'ModelGroupUID'],\n '7005': ['UR', '1', 'RelativeURIReferenceWithinEncapsulatedDocument']\n },\n '006A': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'AnnotationCoordinateType'],\n '0002': ['SQ', '1', 'AnnotationGroupSequence'],\n '0003': ['UI', '1', 'AnnotationGroupUID'],\n '0005': ['LO', '1', 'AnnotationGroupLabel'],\n '0006': ['UT', '1', 'AnnotationGroupDescription'],\n '0007': ['CS', '1', 'AnnotationGroupGenerationType'],\n '0008': ['SQ', '1', 'AnnotationGroupAlgorithmIdentificationSequence'],\n '0009': ['SQ', '1', 'AnnotationPropertyCategoryCodeSequence'],\n '000A': ['SQ', '1', 'AnnotationPropertyTypeCodeSequence'],\n '000B': ['SQ', '1', 'AnnotationPropertyTypeModifierCodeSequence'],\n '000C': ['UL', '1', 'NumberOfAnnotations'],\n '000D': ['CS', '1', 'AnnotationAppliesToAllOpticalPaths'],\n '000E': ['SH', '1-n', 'ReferencedOpticalPathIdentifier'],\n '000F': ['CS', '1', 'AnnotationAppliesToAllZPlanes'],\n '0010': ['FD', '1-n', 'CommonZCoordinateValue'],\n '0011': ['OL', '1', 'AnnotationIndexList']\n },\n '0070': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'GraphicAnnotationSequence'],\n '0002': ['CS', '1', 'GraphicLayer'],\n '0003': ['CS', '1', 'BoundingBoxAnnotationUnits'],\n '0004': ['CS', '1', 'AnchorPointAnnotationUnits'],\n '0005': ['CS', '1', 'GraphicAnnotationUnits'],\n '0006': ['ST', '1', 'UnformattedTextValue'],\n '0008': ['SQ', '1', 'TextObjectSequence'],\n '0009': ['SQ', '1', 'GraphicObjectSequence'],\n '0010': ['FL', '2', 'BoundingBoxTopLeftHandCorner'],\n '0011': ['FL', '2', 'BoundingBoxBottomRightHandCorner'],\n '0012': ['CS', '1', 'BoundingBoxTextHorizontalJustification'],\n '0014': ['FL', '2', 'AnchorPoint'],\n '0015': ['CS', '1', 'AnchorPointVisibility'],\n '0020': ['US', '1', 'GraphicDimensions'],\n '0021': ['US', '1', 'NumberOfGraphicPoints'],\n '0022': ['FL', '2-n', 'GraphicData'],\n '0023': ['CS', '1', 'GraphicType'],\n '0024': ['CS', '1', 'GraphicFilled'],\n '0040': ['IS', '1', 'ImageRotationRetired'],\n '0041': ['CS', '1', 'ImageHorizontalFlip'],\n '0042': ['US', '1', 'ImageRotation'],\n '0050': ['US', '2', 'DisplayedAreaTopLeftHandCornerTrial'],\n '0051': ['US', '2', 'DisplayedAreaBottomRightHandCornerTrial'],\n '0052': ['SL', '2', 'DisplayedAreaTopLeftHandCorner'],\n '0053': ['SL', '2', 'DisplayedAreaBottomRightHandCorner'],\n '005A': ['SQ', '1', 'DisplayedAreaSelectionSequence'],\n '0060': ['SQ', '1', 'GraphicLayerSequence'],\n '0062': ['IS', '1', 'GraphicLayerOrder'],\n '0066': ['US', '1', 'GraphicLayerRecommendedDisplayGrayscaleValue'],\n '0067': ['US', '3', 'GraphicLayerRecommendedDisplayRGBValue'],\n '0068': ['LO', '1', 'GraphicLayerDescription'],\n '0080': ['CS', '1', 'ContentLabel'],\n '0081': ['LO', '1', 'ContentDescription'],\n '0082': ['DA', '1', 'PresentationCreationDate'],\n '0083': ['TM', '1', 'PresentationCreationTime'],\n '0084': ['PN', '1', 'ContentCreatorName'],\n '0086': ['SQ', '1', 'ContentCreatorIdentificationCodeSequence'],\n '0087': ['SQ', '1', 'AlternateContentDescriptionSequence'],\n '0100': ['CS', '1', 'PresentationSizeMode'],\n '0101': ['DS', '2', 'PresentationPixelSpacing'],\n '0102': ['IS', '2', 'PresentationPixelAspectRatio'],\n '0103': ['FL', '1', 'PresentationPixelMagnificationRatio'],\n '0207': ['LO', '1', 'GraphicGroupLabel'],\n '0208': ['ST', '1', 'GraphicGroupDescription'],\n '0209': ['SQ', '1', 'CompoundGraphicSequence'],\n '0226': ['UL', '1', 'CompoundGraphicInstanceID'],\n '0227': ['LO', '1', 'FontName'],\n '0228': ['CS', '1', 'FontNameType'],\n '0229': ['LO', '1', 'CSSFontName'],\n '0230': ['FD', '1', 'RotationAngle'],\n '0231': ['SQ', '1', 'TextStyleSequence'],\n '0232': ['SQ', '1', 'LineStyleSequence'],\n '0233': ['SQ', '1', 'FillStyleSequence'],\n '0234': ['SQ', '1', 'GraphicGroupSequence'],\n '0241': ['US', '3', 'TextColorCIELabValue'],\n '0242': ['CS', '1', 'HorizontalAlignment'],\n '0243': ['CS', '1', 'VerticalAlignment'],\n '0244': ['CS', '1', 'ShadowStyle'],\n '0245': ['FL', '1', 'ShadowOffsetX'],\n '0246': ['FL', '1', 'ShadowOffsetY'],\n '0247': ['US', '3', 'ShadowColorCIELabValue'],\n '0248': ['CS', '1', 'Underlined'],\n '0249': ['CS', '1', 'Bold'],\n '0250': ['CS', '1', 'Italic'],\n '0251': ['US', '3', 'PatternOnColorCIELabValue'],\n '0252': ['US', '3', 'PatternOffColorCIELabValue'],\n '0253': ['FL', '1', 'LineThickness'],\n '0254': ['CS', '1', 'LineDashingStyle'],\n '0255': ['UL', '1', 'LinePattern'],\n '0256': ['OB', '1', 'FillPattern'],\n '0257': ['CS', '1', 'FillMode'],\n '0258': ['FL', '1', 'ShadowOpacity'],\n '0261': ['FL', '1', 'GapLength'],\n '0262': ['FL', '1', 'DiameterOfVisibility'],\n '0273': ['FL', '2', 'RotationPoint'],\n '0274': ['CS', '1', 'TickAlignment'],\n '0278': ['CS', '1', 'ShowTickLabel'],\n '0279': ['CS', '1', 'TickLabelAlignment'],\n '0282': ['CS', '1', 'CompoundGraphicUnits'],\n '0284': ['FL', '1', 'PatternOnOpacity'],\n '0285': ['FL', '1', 'PatternOffOpacity'],\n '0287': ['SQ', '1', 'MajorTicksSequence'],\n '0288': ['FL', '1', 'TickPosition'],\n '0289': ['SH', '1', 'TickLabel'],\n '0294': ['CS', '1', 'CompoundGraphicType'],\n '0295': ['UL', '1', 'GraphicGroupID'],\n '0306': ['CS', '1', 'ShapeType'],\n '0308': ['SQ', '1', 'RegistrationSequence'],\n '0309': ['SQ', '1', 'MatrixRegistrationSequence'],\n '030A': ['SQ', '1', 'MatrixSequence'],\n '030B': ['FD', '16', 'FrameOfReferenceToDisplayedCoordinateSystemTransformationMatrix'],\n '030C': ['CS', '1', 'FrameOfReferenceTransformationMatrixType'],\n '030D': ['SQ', '1', 'RegistrationTypeCodeSequence'],\n '030F': ['ST', '1', 'FiducialDescription'],\n '0310': ['SH', '1', 'FiducialIdentifier'],\n '0311': ['SQ', '1', 'FiducialIdentifierCodeSequence'],\n '0312': ['FD', '1', 'ContourUncertaintyRadius'],\n '0314': ['SQ', '1', 'UsedFiducialsSequence'],\n '0318': ['SQ', '1', 'GraphicCoordinatesDataSequence'],\n '031A': ['UI', '1', 'FiducialUID'],\n '031B': ['UI', '1', 'ReferencedFiducialUID'],\n '031C': ['SQ', '1', 'FiducialSetSequence'],\n '031E': ['SQ', '1', 'FiducialSequence'],\n '031F': ['SQ', '1', 'FiducialsPropertyCategoryCodeSequence'],\n '0401': ['US', '3', 'GraphicLayerRecommendedDisplayCIELabValue'],\n '0402': ['SQ', '1', 'BlendingSequence'],\n '0403': ['FL', '1', 'RelativeOpacity'],\n '0404': ['SQ', '1', 'ReferencedSpatialRegistrationSequence'],\n '0405': ['CS', '1', 'BlendingPosition'],\n '1101': ['UI', '1', 'PresentationDisplayCollectionUID'],\n '1102': ['UI', '1', 'PresentationSequenceCollectionUID'],\n '1103': ['US', '1', 'PresentationSequencePositionIndex'],\n '1104': ['SQ', '1', 'RenderedImageReferenceSequence'],\n '1201': ['SQ', '1', 'VolumetricPresentationStateInputSequence'],\n '1202': ['CS', '1', 'PresentationInputType'],\n '1203': ['US', '1', 'InputSequencePositionIndex'],\n '1204': ['CS', '1', 'Crop'],\n '1205': ['US', '1-n', 'CroppingSpecificationIndex'],\n '1206': ['CS', '1', 'CompositingMethod'],\n '1207': ['US', '1', 'VolumetricPresentationInputNumber'],\n '1208': ['CS', '1', 'ImageVolumeGeometry'],\n '1209': ['UI', '1', 'VolumetricPresentationInputSetUID'],\n '120A': ['SQ', '1', 'VolumetricPresentationInputSetSequence'],\n '120B': ['CS', '1', 'GlobalCrop'],\n '120C': ['US', '1-n', 'GlobalCroppingSpecificationIndex'],\n '120D': ['CS', '1', 'RenderingMethod'],\n '1301': ['SQ', '1', 'VolumeCroppingSequence'],\n '1302': ['CS', '1', 'VolumeCroppingMethod'],\n '1303': ['FD', '6', 'BoundingBoxCrop'],\n '1304': ['SQ', '1', 'ObliqueCroppingPlaneSequence'],\n '1305': ['FD', '4', 'Plane'],\n '1306': ['FD', '3', 'PlaneNormal'],\n '1309': ['US', '1', 'CroppingSpecificationNumber'],\n '1501': ['CS', '1', 'MultiPlanarReconstructionStyle'],\n '1502': ['CS', '1', 'MPRThicknessType'],\n '1503': ['FD', '1', 'MPRSlabThickness'],\n '1505': ['FD', '3', 'MPRTopLeftHandCorner'],\n '1507': ['FD', '3', 'MPRViewWidthDirection'],\n '1508': ['FD', '1', 'MPRViewWidth'],\n '150C': ['UL', '1', 'NumberOfVolumetricCurvePoints'],\n '150D': ['OD', '1', 'VolumetricCurvePoints'],\n '1511': ['FD', '3', 'MPRViewHeightDirection'],\n '1512': ['FD', '1', 'MPRViewHeight'],\n '1602': ['CS', '1', 'RenderProjection'],\n '1603': ['FD', '3', 'ViewpointPosition'],\n '1604': ['FD', '3', 'ViewpointLookAtPoint'],\n '1605': ['FD', '3', 'ViewpointUpDirection'],\n '1606': ['FD', '6', 'RenderFieldOfView'],\n '1607': ['FD', '1', 'SamplingStepSize'],\n '1701': ['CS', '1', 'ShadingStyle'],\n '1702': ['FD', '1', 'AmbientReflectionIntensity'],\n '1703': ['FD', '3', 'LightDirection'],\n '1704': ['FD', '1', 'DiffuseReflectionIntensity'],\n '1705': ['FD', '1', 'SpecularReflectionIntensity'],\n '1706': ['FD', '1', 'Shininess'],\n '1801': ['SQ', '1', 'PresentationStateClassificationComponentSequence'],\n '1802': ['CS', '1', 'ComponentType'],\n '1803': ['SQ', '1', 'ComponentInputSequence'],\n '1804': ['US', '1', 'VolumetricPresentationInputIndex'],\n '1805': ['SQ', '1', 'PresentationStateCompositorComponentSequence'],\n '1806': ['SQ', '1', 'WeightingTransferFunctionSequence'],\n '1807': ['US', '3', 'WeightingLookupTableDescriptor'],\n '1808': ['OB', '1', 'WeightingLookupTableData'],\n '1901': ['SQ', '1', 'VolumetricAnnotationSequence'],\n '1903': ['SQ', '1', 'ReferencedStructuredContextSequence'],\n '1904': ['UI', '1', 'ReferencedContentItem'],\n '1905': ['SQ', '1', 'VolumetricPresentationInputAnnotationSequence'],\n '1907': ['CS', '1', 'AnnotationClipping'],\n '1A01': ['CS', '1', 'PresentationAnimationStyle'],\n '1A03': ['FD', '1', 'RecommendedAnimationRate'],\n '1A04': ['SQ', '1', 'AnimationCurveSequence'],\n '1A05': ['FD', '1', 'AnimationStepSize'],\n '1A06': ['FD', '1', 'SwivelRange'],\n '1A07': ['OD', '1', 'VolumetricCurveUpDirections'],\n '1A08': ['SQ', '1', 'VolumeStreamSequence'],\n '1A09': ['LO', '1', 'RGBATransferFunctionDescription'],\n '1B01': ['SQ', '1', 'AdvancedBlendingSequence'],\n '1B02': ['US', '1', 'BlendingInputNumber'],\n '1B03': ['SQ', '1', 'BlendingDisplayInputSequence'],\n '1B04': ['SQ', '1', 'BlendingDisplaySequence'],\n '1B06': ['CS', '1', 'BlendingMode'],\n '1B07': ['CS', '1', 'TimeSeriesBlending'],\n '1B08': ['CS', '1', 'GeometryForDisplay'],\n '1B11': ['SQ', '1', 'ThresholdSequence'],\n '1B12': ['SQ', '1', 'ThresholdValueSequence'],\n '1B13': ['CS', '1', 'ThresholdType'],\n '1B14': ['FD', '1', 'ThresholdValue']\n },\n '0072': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'HangingProtocolName'],\n '0004': ['LO', '1', 'HangingProtocolDescription'],\n '0006': ['CS', '1', 'HangingProtocolLevel'],\n '0008': ['LO', '1', 'HangingProtocolCreator'],\n '000A': ['DT', '1', 'HangingProtocolCreationDateTime'],\n '000C': ['SQ', '1', 'HangingProtocolDefinitionSequence'],\n '000E': ['SQ', '1', 'HangingProtocolUserIdentificationCodeSequence'],\n '0010': ['LO', '1', 'HangingProtocolUserGroupName'],\n '0012': ['SQ', '1', 'SourceHangingProtocolSequence'],\n '0014': ['US', '1', 'NumberOfPriorsReferenced'],\n '0020': ['SQ', '1', 'ImageSetsSequence'],\n '0022': ['SQ', '1', 'ImageSetSelectorSequence'],\n '0024': ['CS', '1', 'ImageSetSelectorUsageFlag'],\n '0026': ['AT', '1', 'SelectorAttribute'],\n '0028': ['US', '1', 'SelectorValueNumber'],\n '0030': ['SQ', '1', 'TimeBasedImageSetsSequence'],\n '0032': ['US', '1', 'ImageSetNumber'],\n '0034': ['CS', '1', 'ImageSetSelectorCategory'],\n '0038': ['US', '2', 'RelativeTime'],\n '003A': ['CS', '1', 'RelativeTimeUnits'],\n '003C': ['SS', '2', 'AbstractPriorValue'],\n '003E': ['SQ', '1', 'AbstractPriorCodeSequence'],\n '0040': ['LO', '1', 'ImageSetLabel'],\n '0050': ['CS', '1', 'SelectorAttributeVR'],\n '0052': ['AT', '1-n', 'SelectorSequencePointer'],\n '0054': ['LO', '1-n', 'SelectorSequencePointerPrivateCreator'],\n '0056': ['LO', '1', 'SelectorAttributePrivateCreator'],\n '005E': ['AE', '1-n', 'SelectorAEValue'],\n '005F': ['AS', '1-n', 'SelectorASValue'],\n '0060': ['AT', '1-n', 'SelectorATValue'],\n '0061': ['DA', '1-n', 'SelectorDAValue'],\n '0062': ['CS', '1-n', 'SelectorCSValue'],\n '0063': ['DT', '1-n', 'SelectorDTValue'],\n '0064': ['IS', '1-n', 'SelectorISValue'],\n '0065': ['OB', '1', 'SelectorOBValue'],\n '0066': ['LO', '1-n', 'SelectorLOValue'],\n '0067': ['OF', '1', 'SelectorOFValue'],\n '0068': ['LT', '1', 'SelectorLTValue'],\n '0069': ['OW', '1', 'SelectorOWValue'],\n '006A': ['PN', '1-n', 'SelectorPNValue'],\n '006B': ['TM', '1-n', 'SelectorTMValue'],\n '006C': ['SH', '1-n', 'SelectorSHValue'],\n '006D': ['UN', '1', 'SelectorUNValue'],\n '006E': ['ST', '1', 'SelectorSTValue'],\n '006F': ['UC', '1-n', 'SelectorUCValue'],\n '0070': ['UT', '1', 'SelectorUTValue'],\n '0071': ['UR', '1', 'SelectorURValue'],\n '0072': ['DS', '1-n', 'SelectorDSValue'],\n '0073': ['OD', '1', 'SelectorODValue'],\n '0074': ['FD', '1-n', 'SelectorFDValue'],\n '0075': ['OL', '1', 'SelectorOLValue'],\n '0076': ['FL', '1-n', 'SelectorFLValue'],\n '0078': ['UL', '1-n', 'SelectorULValue'],\n '007A': ['US', '1-n', 'SelectorUSValue'],\n '007C': ['SL', '1-n', 'SelectorSLValue'],\n '007E': ['SS', '1-n', 'SelectorSSValue'],\n '007F': ['UI', '1-n', 'SelectorUIValue'],\n '0080': ['SQ', '1', 'SelectorCodeSequenceValue'],\n '0081': ['OV', '1', 'SelectorOVValue'],\n '0082': ['SV', '1-n', 'SelectorSVValue'],\n '0083': ['UV', '1-n', 'SelectorUVValue'],\n '0100': ['US', '1', 'NumberOfScreens'],\n '0102': ['SQ', '1', 'NominalScreenDefinitionSequence'],\n '0104': ['US', '1', 'NumberOfVerticalPixels'],\n '0106': ['US', '1', 'NumberOfHorizontalPixels'],\n '0108': ['FD', '4', 'DisplayEnvironmentSpatialPosition'],\n '010A': ['US', '1', 'ScreenMinimumGrayscaleBitDepth'],\n '010C': ['US', '1', 'ScreenMinimumColorBitDepth'],\n '010E': ['US', '1', 'ApplicationMaximumRepaintTime'],\n '0200': ['SQ', '1', 'DisplaySetsSequence'],\n '0202': ['US', '1', 'DisplaySetNumber'],\n '0203': ['LO', '1', 'DisplaySetLabel'],\n '0204': ['US', '1', 'DisplaySetPresentationGroup'],\n '0206': ['LO', '1', 'DisplaySetPresentationGroupDescription'],\n '0208': ['CS', '1', 'PartialDataDisplayHandling'],\n '0210': ['SQ', '1', 'SynchronizedScrollingSequence'],\n '0212': ['US', '2-n', 'DisplaySetScrollingGroup'],\n '0214': ['SQ', '1', 'NavigationIndicatorSequence'],\n '0216': ['US', '1', 'NavigationDisplaySet'],\n '0218': ['US', '1-n', 'ReferenceDisplaySets'],\n '0300': ['SQ', '1', 'ImageBoxesSequence'],\n '0302': ['US', '1', 'ImageBoxNumber'],\n '0304': ['CS', '1', 'ImageBoxLayoutType'],\n '0306': ['US', '1', 'ImageBoxTileHorizontalDimension'],\n '0308': ['US', '1', 'ImageBoxTileVerticalDimension'],\n '0310': ['CS', '1', 'ImageBoxScrollDirection'],\n '0312': ['CS', '1', 'ImageBoxSmallScrollType'],\n '0314': ['US', '1', 'ImageBoxSmallScrollAmount'],\n '0316': ['CS', '1', 'ImageBoxLargeScrollType'],\n '0318': ['US', '1', 'ImageBoxLargeScrollAmount'],\n '0320': ['US', '1', 'ImageBoxOverlapPriority'],\n '0330': ['FD', '1', 'CineRelativeToRealTime'],\n '0400': ['SQ', '1', 'FilterOperationsSequence'],\n '0402': ['CS', '1', 'FilterByCategory'],\n '0404': ['CS', '1', 'FilterByAttributePresence'],\n '0406': ['CS', '1', 'FilterByOperator'],\n '0420': ['US', '3', 'StructuredDisplayBackgroundCIELabValue'],\n '0421': ['US', '3', 'EmptyImageBoxCIELabValue'],\n '0422': ['SQ', '1', 'StructuredDisplayImageBoxSequence'],\n '0424': ['SQ', '1', 'StructuredDisplayTextBoxSequence'],\n '0427': ['SQ', '1', 'ReferencedFirstFrameSequence'],\n '0430': ['SQ', '1', 'ImageBoxSynchronizationSequence'],\n '0432': ['US', '2-n', 'SynchronizedImageBoxList'],\n '0434': ['CS', '1', 'TypeOfSynchronization'],\n '0500': ['CS', '1', 'BlendingOperationType'],\n '0510': ['CS', '1', 'ReformattingOperationType'],\n '0512': ['FD', '1', 'ReformattingThickness'],\n '0514': ['FD', '1', 'ReformattingInterval'],\n '0516': ['CS', '1', 'ReformattingOperationInitialViewDirection'],\n '0520': ['CS', '1-n', 'ThreeDRenderingType'],\n '0600': ['SQ', '1', 'SortingOperationsSequence'],\n '0602': ['CS', '1', 'SortByCategory'],\n '0604': ['CS', '1', 'SortingDirection'],\n '0700': ['CS', '2', 'DisplaySetPatientOrientation'],\n '0702': ['CS', '1', 'VOIType'],\n '0704': ['CS', '1', 'PseudoColorType'],\n '0705': ['SQ', '1', 'PseudoColorPaletteInstanceReferenceSequence'],\n '0706': ['CS', '1', 'ShowGrayscaleInverted'],\n '0710': ['CS', '1', 'ShowImageTrueSizeFlag'],\n '0712': ['CS', '1', 'ShowGraphicAnnotationFlag'],\n '0714': ['CS', '1', 'ShowPatientDemographicsFlag'],\n '0716': ['CS', '1', 'ShowAcquisitionTechniquesFlag'],\n '0717': ['CS', '1', 'DisplaySetHorizontalJustification'],\n '0718': ['CS', '1', 'DisplaySetVerticalJustification']\n },\n '0074': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0120': ['FD', '1', 'ContinuationStartMeterset'],\n '0121': ['FD', '1', 'ContinuationEndMeterset'],\n '1000': ['CS', '1', 'ProcedureStepState'],\n '1002': ['SQ', '1', 'ProcedureStepProgressInformationSequence'],\n '1004': ['DS', '1', 'ProcedureStepProgress'],\n '1006': ['ST', '1', 'ProcedureStepProgressDescription'],\n '1007': ['SQ', '1', 'ProcedureStepProgressParametersSequence'],\n '1008': ['SQ', '1', 'ProcedureStepCommunicationsURISequence'],\n '100A': ['UR', '1', 'ContactURI'],\n '100C': ['LO', '1', 'ContactDisplayName'],\n '100E': ['SQ', '1', 'ProcedureStepDiscontinuationReasonCodeSequence'],\n '1020': ['SQ', '1', 'BeamTaskSequence'],\n '1022': ['CS', '1', 'BeamTaskType'],\n '1024': ['IS', '1', 'BeamOrderIndexTrial'],\n '1025': ['CS', '1', 'AutosequenceFlag'],\n '1026': ['FD', '1', 'TableTopVerticalAdjustedPosition'],\n '1027': ['FD', '1', 'TableTopLongitudinalAdjustedPosition'],\n '1028': ['FD', '1', 'TableTopLateralAdjustedPosition'],\n '102A': ['FD', '1', 'PatientSupportAdjustedAngle'],\n '102B': ['FD', '1', 'TableTopEccentricAdjustedAngle'],\n '102C': ['FD', '1', 'TableTopPitchAdjustedAngle'],\n '102D': ['FD', '1', 'TableTopRollAdjustedAngle'],\n '1030': ['SQ', '1', 'DeliveryVerificationImageSequence'],\n '1032': ['CS', '1', 'VerificationImageTiming'],\n '1034': ['CS', '1', 'DoubleExposureFlag'],\n '1036': ['CS', '1', 'DoubleExposureOrdering'],\n '1038': ['DS', '1', 'DoubleExposureMetersetTrial'],\n '103A': ['DS', '4', 'DoubleExposureFieldDeltaTrial'],\n '1040': ['SQ', '1', 'RelatedReferenceRTImageSequence'],\n '1042': ['SQ', '1', 'GeneralMachineVerificationSequence'],\n '1044': ['SQ', '1', 'ConventionalMachineVerificationSequence'],\n '1046': ['SQ', '1', 'IonMachineVerificationSequence'],\n '1048': ['SQ', '1', 'FailedAttributesSequence'],\n '104A': ['SQ', '1', 'OverriddenAttributesSequence'],\n '104C': ['SQ', '1', 'ConventionalControlPointVerificationSequence'],\n '104E': ['SQ', '1', 'IonControlPointVerificationSequence'],\n '1050': ['SQ', '1', 'AttributeOccurrenceSequence'],\n '1052': ['AT', '1', 'AttributeOccurrencePointer'],\n '1054': ['UL', '1', 'AttributeItemSelector'],\n '1056': ['LO', '1', 'AttributeOccurrencePrivateCreator'],\n '1057': ['IS', '1-n', 'SelectorSequencePointerItems'],\n '1200': ['CS', '1', 'ScheduledProcedureStepPriority'],\n '1202': ['LO', '1', 'WorklistLabel'],\n '1204': ['LO', '1', 'ProcedureStepLabel'],\n '1210': ['SQ', '1', 'ScheduledProcessingParametersSequence'],\n '1212': ['SQ', '1', 'PerformedProcessingParametersSequence'],\n '1216': ['SQ', '1', 'UnifiedProcedureStepPerformedProcedureSequence'],\n '1220': ['SQ', '1', 'RelatedProcedureStepSequence'],\n '1222': ['LO', '1', 'ProcedureStepRelationshipType'],\n '1224': ['SQ', '1', 'ReplacedProcedureStepSequence'],\n '1230': ['LO', '1', 'DeletionLock'],\n '1234': ['AE', '1', 'ReceivingAE'],\n '1236': ['AE', '1', 'RequestingAE'],\n '1238': ['LT', '1', 'ReasonForCancellation'],\n '1242': ['CS', '1', 'SCPStatus'],\n '1244': ['CS', '1', 'SubscriptionListStatus'],\n '1246': ['CS', '1', 'UnifiedProcedureStepListStatus'],\n '1324': ['UL', '1', 'BeamOrderIndex'],\n '1338': ['FD', '1', 'DoubleExposureMeterset'],\n '133A': ['FD', '4', 'DoubleExposureFieldDelta'],\n '1401': ['SQ', '1', 'BrachyTaskSequence'],\n '1402': ['DS', '1', 'ContinuationStartTotalReferenceAirKerma'],\n '1403': ['DS', '1', 'ContinuationEndTotalReferenceAirKerma'],\n '1404': ['IS', '1', 'ContinuationPulseNumber'],\n '1405': ['SQ', '1', 'ChannelDeliveryOrderSequence'],\n '1406': ['IS', '1', 'ReferencedChannelNumber'],\n '1407': ['DS', '1', 'StartCumulativeTimeWeight'],\n '1408': ['DS', '1', 'EndCumulativeTimeWeight'],\n '1409': ['SQ', '1', 'OmittedChannelSequence'],\n '140A': ['CS', '1', 'ReasonForChannelOmission'],\n '140B': ['LO', '1', 'ReasonForChannelOmissionDescription'],\n '140C': ['IS', '1', 'ChannelDeliveryOrderIndex'],\n '140D': ['SQ', '1', 'ChannelDeliveryContinuationSequence'],\n '140E': ['SQ', '1', 'OmittedApplicationSetupSequence']\n },\n '0076': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['LO', '1', 'ImplantAssemblyTemplateName'],\n '0003': ['LO', '1', 'ImplantAssemblyTemplateIssuer'],\n '0006': ['LO', '1', 'ImplantAssemblyTemplateVersion'],\n '0008': ['SQ', '1', 'ReplacedImplantAssemblyTemplateSequence'],\n '000A': ['CS', '1', 'ImplantAssemblyTemplateType'],\n '000C': ['SQ', '1', 'OriginalImplantAssemblyTemplateSequence'],\n '000E': ['SQ', '1', 'DerivationImplantAssemblyTemplateSequence'],\n '0010': ['SQ', '1', 'ImplantAssemblyTemplateTargetAnatomySequence'],\n '0020': ['SQ', '1', 'ProcedureTypeCodeSequence'],\n '0030': ['LO', '1', 'SurgicalTechnique'],\n '0032': ['SQ', '1', 'ComponentTypesSequence'],\n '0034': ['SQ', '1', 'ComponentTypeCodeSequence'],\n '0036': ['CS', '1', 'ExclusiveComponentType'],\n '0038': ['CS', '1', 'MandatoryComponentType'],\n '0040': ['SQ', '1', 'ComponentSequence'],\n '0055': ['US', '1', 'ComponentID'],\n '0060': ['SQ', '1', 'ComponentAssemblySequence'],\n '0070': ['US', '1', 'Component1ReferencedID'],\n '0080': ['US', '1', 'Component1ReferencedMatingFeatureSetID'],\n '0090': ['US', '1', 'Component1ReferencedMatingFeatureID'],\n '00A0': ['US', '1', 'Component2ReferencedID'],\n '00B0': ['US', '1', 'Component2ReferencedMatingFeatureSetID'],\n '00C0': ['US', '1', 'Component2ReferencedMatingFeatureID']\n },\n '0078': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['LO', '1', 'ImplantTemplateGroupName'],\n '0010': ['ST', '1', 'ImplantTemplateGroupDescription'],\n '0020': ['LO', '1', 'ImplantTemplateGroupIssuer'],\n '0024': ['LO', '1', 'ImplantTemplateGroupVersion'],\n '0026': ['SQ', '1', 'ReplacedImplantTemplateGroupSequence'],\n '0028': ['SQ', '1', 'ImplantTemplateGroupTargetAnatomySequence'],\n '002A': ['SQ', '1', 'ImplantTemplateGroupMembersSequence'],\n '002E': ['US', '1', 'ImplantTemplateGroupMemberID'],\n '0050': ['FD', '3', 'ThreeDImplantTemplateGroupMemberMatchingPoint'],\n '0060': ['FD', '9', 'ThreeDImplantTemplateGroupMemberMatchingAxes'],\n '0070': ['SQ', '1', 'ImplantTemplateGroupMemberMatching2DCoordinatesSequence'],\n '0090': ['FD', '2', 'TwoDImplantTemplateGroupMemberMatchingPoint'],\n '00A0': ['FD', '4', 'TwoDImplantTemplateGroupMemberMatchingAxes'],\n '00B0': ['SQ', '1', 'ImplantTemplateGroupVariationDimensionSequence'],\n '00B2': ['LO', '1', 'ImplantTemplateGroupVariationDimensionName'],\n '00B4': ['SQ', '1', 'ImplantTemplateGroupVariationDimensionRankSequence'],\n '00B6': ['US', '1', 'ReferencedImplantTemplateGroupMemberID'],\n '00B8': ['US', '1', 'ImplantTemplateGroupVariationDimensionRank']\n },\n '0080': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'SurfaceScanAcquisitionTypeCodeSequence'],\n '0002': ['SQ', '1', 'SurfaceScanModeCodeSequence'],\n '0003': ['SQ', '1', 'RegistrationMethodCodeSequence'],\n '0004': ['FD', '1', 'ShotDurationTime'],\n '0005': ['FD', '1', 'ShotOffsetTime'],\n '0006': ['US', '1-n', 'SurfacePointPresentationValueData'],\n '0007': ['US', '3-3n', 'SurfacePointColorCIELabValueData'],\n '0008': ['SQ', '1', 'UVMappingSequence'],\n '0009': ['SH', '1', 'TextureLabel'],\n '0010': ['OF', '1', 'UValueData'],\n '0011': ['OF', '1', 'VValueData'],\n '0012': ['SQ', '1', 'ReferencedTextureSequence'],\n '0013': ['SQ', '1', 'ReferencedSurfaceDataSequence']\n },\n '0082': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'AssessmentSummary'],\n '0003': ['UT', '1', 'AssessmentSummaryDescription'],\n '0004': ['SQ', '1', 'AssessedSOPInstanceSequence'],\n '0005': ['SQ', '1', 'ReferencedComparisonSOPInstanceSequence'],\n '0006': ['UL', '1', 'NumberOfAssessmentObservations'],\n '0007': ['SQ', '1', 'AssessmentObservationsSequence'],\n '0008': ['CS', '1', 'ObservationSignificance'],\n '000A': ['UT', '1', 'ObservationDescription'],\n '000C': ['SQ', '1', 'StructuredConstraintObservationSequence'],\n '0010': ['SQ', '1', 'AssessedAttributeValueSequence'],\n '0016': ['LO', '1', 'AssessmentSetID'],\n '0017': ['SQ', '1', 'AssessmentRequesterSequence'],\n '0018': ['LO', '1', 'SelectorAttributeName'],\n '0019': ['LO', '1', 'SelectorAttributeKeyword'],\n '0021': ['SQ', '1', 'AssessmentTypeCodeSequence'],\n '0022': ['SQ', '1', 'ObservationBasisCodeSequence'],\n '0023': ['LO', '1', 'AssessmentLabel'],\n '0032': ['CS', '1', 'ConstraintType'],\n '0033': ['UT', '1', 'SpecificationSelectionGuidance'],\n '0034': ['SQ', '1', 'ConstraintValueSequence'],\n '0035': ['SQ', '1', 'RecommendedDefaultValueSequence'],\n '0036': ['CS', '1', 'ConstraintViolationSignificance'],\n '0037': ['UT', '1', 'ConstraintViolationCondition'],\n '0038': ['CS', '1', 'ModifiableConstraintFlag']\n },\n '0088': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0130': ['SH', '1', 'StorageMediaFileSetID'],\n '0140': ['UI', '1', 'StorageMediaFileSetUID'],\n '0200': ['SQ', '1', 'IconImageSequence'],\n '0904': ['LO', '1', 'TopicTitle'],\n '0906': ['ST', '1', 'TopicSubject'],\n '0910': ['LO', '1', 'TopicAuthor'],\n '0912': ['LO', '1-32', 'TopicKeywords']\n },\n '0100': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0410': ['CS', '1', 'SOPInstanceStatus'],\n '0420': ['DT', '1', 'SOPAuthorizationDateTime'],\n '0424': ['LT', '1', 'SOPAuthorizationComment'],\n '0426': ['LO', '1', 'AuthorizationEquipmentCertificationNumber']\n },\n '0400': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0005': ['US', '1', 'MACIDNumber'],\n '0010': ['UI', '1', 'MACCalculationTransferSyntaxUID'],\n '0015': ['CS', '1', 'MACAlgorithm'],\n '0020': ['AT', '1-n', 'DataElementsSigned'],\n '0100': ['UI', '1', 'DigitalSignatureUID'],\n '0105': ['DT', '1', 'DigitalSignatureDateTime'],\n '0110': ['CS', '1', 'CertificateType'],\n '0115': ['OB', '1', 'CertificateOfSigner'],\n '0120': ['OB', '1', 'Signature'],\n '0305': ['CS', '1', 'CertifiedTimestampType'],\n '0310': ['OB', '1', 'CertifiedTimestamp'],\n '0315': ['FL', '1', ''],\n '0401': ['SQ', '1', 'DigitalSignaturePurposeCodeSequence'],\n '0402': ['SQ', '1', 'ReferencedDigitalSignatureSequence'],\n '0403': ['SQ', '1', 'ReferencedSOPInstanceMACSequence'],\n '0404': ['OB', '1', 'MAC'],\n '0500': ['SQ', '1', 'EncryptedAttributesSequence'],\n '0510': ['UI', '1', 'EncryptedContentTransferSyntaxUID'],\n '0520': ['OB', '1', 'EncryptedContent'],\n '0550': ['SQ', '1', 'ModifiedAttributesSequence'],\n '0551': ['SQ', '1', 'NonconformingModifiedAttributesSequence'],\n '0552': ['OB', '1', 'NonconformingDataElementValue'],\n '0561': ['SQ', '1', 'OriginalAttributesSequence'],\n '0562': ['DT', '1', 'AttributeModificationDateTime'],\n '0563': ['LO', '1', 'ModifyingSystem'],\n '0564': ['LO', '1', 'SourceOfPreviousValues'],\n '0565': ['CS', '1', 'ReasonForTheAttributeModification'],\n '0600': ['CS', '1', 'InstanceOriginStatus']\n },\n '1000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '3', 'EscapeTriplet'],\n '0011': ['US', '3', 'RunLengthTriplet'],\n '0012': ['US', '1', 'HuffmanTableSize'],\n '0013': ['US', '3', 'HuffmanTableTriplet'],\n '0014': ['US', '1', 'ShiftTableSize'],\n '0015': ['US', '3', 'ShiftTableTriplet']\n },\n '1010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0004': ['US', '1-n', 'ZonalMap']\n },\n '2000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['IS', '1', 'NumberOfCopies'],\n '001E': ['SQ', '1', 'PrinterConfigurationSequence'],\n '0020': ['CS', '1', 'PrintPriority'],\n '0030': ['CS', '1', 'MediumType'],\n '0040': ['CS', '1', 'FilmDestination'],\n '0050': ['LO', '1', 'FilmSessionLabel'],\n '0060': ['IS', '1', 'MemoryAllocation'],\n '0061': ['IS', '1', 'MaximumMemoryAllocation'],\n '0062': ['CS', '1', 'ColorImagePrintingFlag'],\n '0063': ['CS', '1', 'CollationFlag'],\n '0065': ['CS', '1', 'AnnotationFlag'],\n '0067': ['CS', '1', 'ImageOverlayFlag'],\n '0069': ['CS', '1', 'PresentationLUTFlag'],\n '006A': ['CS', '1', 'ImageBoxPresentationLUTFlag'],\n '00A0': ['US', '1', 'MemoryBitDepth'],\n '00A1': ['US', '1', 'PrintingBitDepth'],\n '00A2': ['SQ', '1', 'MediaInstalledSequence'],\n '00A4': ['SQ', '1', 'OtherMediaAvailableSequence'],\n '00A8': ['SQ', '1', 'SupportedImageDisplayFormatsSequence'],\n '0500': ['SQ', '1', 'ReferencedFilmBoxSequence'],\n '0510': ['SQ', '1', 'ReferencedStoredPrintSequence']\n },\n '2010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['ST', '1', 'ImageDisplayFormat'],\n '0030': ['CS', '1', 'AnnotationDisplayFormatID'],\n '0040': ['CS', '1', 'FilmOrientation'],\n '0050': ['CS', '1', 'FilmSizeID'],\n '0052': ['CS', '1', 'PrinterResolutionID'],\n '0054': ['CS', '1', 'DefaultPrinterResolutionID'],\n '0060': ['CS', '1', 'MagnificationType'],\n '0080': ['CS', '1', 'SmoothingType'],\n '00A6': ['CS', '1', 'DefaultMagnificationType'],\n '00A7': ['CS', '1-n', 'OtherMagnificationTypesAvailable'],\n '00A8': ['CS', '1', 'DefaultSmoothingType'],\n '00A9': ['CS', '1-n', 'OtherSmoothingTypesAvailable'],\n '0100': ['CS', '1', 'BorderDensity'],\n '0110': ['CS', '1', 'EmptyImageDensity'],\n '0120': ['US', '1', 'MinDensity'],\n '0130': ['US', '1', 'MaxDensity'],\n '0140': ['CS', '1', 'Trim'],\n '0150': ['ST', '1', 'ConfigurationInformation'],\n '0152': ['LT', '1', 'ConfigurationInformationDescription'],\n '0154': ['IS', '1', 'MaximumCollatedFilms'],\n '015E': ['US', '1', 'Illumination'],\n '0160': ['US', '1', 'ReflectedAmbientLight'],\n '0376': ['DS', '2', 'PrinterPixelSpacing'],\n '0500': ['SQ', '1', 'ReferencedFilmSessionSequence'],\n '0510': ['SQ', '1', 'ReferencedImageBoxSequence'],\n '0520': ['SQ', '1', 'ReferencedBasicAnnotationBoxSequence']\n },\n '2020': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1', 'ImageBoxPosition'],\n '0020': ['CS', '1', 'Polarity'],\n '0030': ['DS', '1', 'RequestedImageSize'],\n '0040': ['CS', '1', 'RequestedDecimateCropBehavior'],\n '0050': ['CS', '1', 'RequestedResolutionID'],\n '00A0': ['CS', '1', 'RequestedImageSizeFlag'],\n '00A2': ['CS', '1', 'DecimateCropResult'],\n '0110': ['SQ', '1', 'BasicGrayscaleImageSequence'],\n '0111': ['SQ', '1', 'BasicColorImageSequence'],\n '0130': ['SQ', '1', 'ReferencedImageOverlayBoxSequence'],\n '0140': ['SQ', '1', 'ReferencedVOILUTBoxSequence']\n },\n '2030': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1', 'AnnotationPosition'],\n '0020': ['LO', '1', 'TextString']\n },\n '2040': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'ReferencedOverlayPlaneSequence'],\n '0011': ['US', '1-99', 'ReferencedOverlayPlaneGroups'],\n '0020': ['SQ', '1', 'OverlayPixelDataSequence'],\n '0060': ['CS', '1', 'OverlayMagnificationType'],\n '0070': ['CS', '1', 'OverlaySmoothingType'],\n '0072': ['CS', '1', 'OverlayOrImageMagnification'],\n '0074': ['US', '1', 'MagnifyToNumberOfColumns'],\n '0080': ['CS', '1', 'OverlayForegroundDensity'],\n '0082': ['CS', '1', 'OverlayBackgroundDensity'],\n '0090': ['CS', '1', 'OverlayMode'],\n '0100': ['CS', '1', 'ThresholdDensity'],\n '0500': ['SQ', '1', 'ReferencedImageBoxSequenceRetired']\n },\n '2050': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'PresentationLUTSequence'],\n '0020': ['CS', '1', 'PresentationLUTShape'],\n '0500': ['SQ', '1', 'ReferencedPresentationLUTSequence']\n },\n '2100': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SH', '1', 'PrintJobID'],\n '0020': ['CS', '1', 'ExecutionStatus'],\n '0030': ['CS', '1', 'ExecutionStatusInfo'],\n '0040': ['DA', '1', 'CreationDate'],\n '0050': ['TM', '1', 'CreationTime'],\n '0070': ['AE', '1', 'Originator'],\n '0140': ['AE', '1', 'DestinationAE'],\n '0160': ['SH', '1', 'OwnerID'],\n '0170': ['IS', '1', 'NumberOfFilms'],\n '0500': ['SQ', '1', 'ReferencedPrintJobSequencePullStoredPrint']\n },\n '2110': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['CS', '1', 'PrinterStatus'],\n '0020': ['CS', '1', 'PrinterStatusInfo'],\n '0030': ['LO', '1', 'PrinterName'],\n '0099': ['SH', '1', 'PrintQueueID']\n },\n '2120': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['CS', '1', 'QueueStatus'],\n '0050': ['SQ', '1', 'PrintJobDescriptionSequence'],\n '0070': ['SQ', '1', 'ReferencedPrintJobSequence']\n },\n '2130': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'PrintManagementCapabilitiesSequence'],\n '0015': ['SQ', '1', 'PrinterCharacteristicsSequence'],\n '0030': ['SQ', '1', 'FilmBoxContentSequence'],\n '0040': ['SQ', '1', 'ImageBoxContentSequence'],\n '0050': ['SQ', '1', 'AnnotationContentSequence'],\n '0060': ['SQ', '1', 'ImageOverlayBoxContentSequence'],\n '0080': ['SQ', '1', 'PresentationLUTContentSequence'],\n '00A0': ['SQ', '1', 'ProposedStudySequence'],\n '00C0': ['SQ', '1', 'OriginalImageSequence']\n },\n '2200': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'LabelUsingInformationExtractedFromInstances'],\n '0002': ['UT', '1', 'LabelText'],\n '0003': ['CS', '1', 'LabelStyleSelection'],\n '0004': ['LT', '1', 'MediaDisposition'],\n '0005': ['LT', '1', 'BarcodeValue'],\n '0006': ['CS', '1', 'BarcodeSymbology'],\n '0007': ['CS', '1', 'AllowMediaSplitting'],\n '0008': ['CS', '1', 'IncludeNonDICOMObjects'],\n '0009': ['CS', '1', 'IncludeDisplayApplication'],\n '000A': ['CS', '1', 'PreserveCompositeInstancesAfterMediaCreation'],\n '000B': ['US', '1', 'TotalNumberOfPiecesOfMediaCreated'],\n '000C': ['LO', '1', 'RequestedMediaApplicationProfile'],\n '000D': ['SQ', '1', 'ReferencedStorageMediaSequence'],\n '000E': ['AT', '1-n', 'FailureAttributes'],\n '000F': ['CS', '1', 'AllowLossyCompression'],\n '0020': ['CS', '1', 'RequestPriority']\n },\n '3002': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'RTImageLabel'],\n '0003': ['LO', '1', 'RTImageName'],\n '0004': ['ST', '1', 'RTImageDescription'],\n '000A': ['CS', '1', 'ReportedValuesOrigin'],\n '000C': ['CS', '1', 'RTImagePlane'],\n '000D': ['DS', '3', 'XRayImageReceptorTranslation'],\n '000E': ['DS', '1', 'XRayImageReceptorAngle'],\n '0010': ['DS', '6', 'RTImageOrientation'],\n '0011': ['DS', '2', 'ImagePlanePixelSpacing'],\n '0012': ['DS', '2', 'RTImagePosition'],\n '0020': ['SH', '1', 'RadiationMachineName'],\n '0022': ['DS', '1', 'RadiationMachineSAD'],\n '0024': ['DS', '1', 'RadiationMachineSSD'],\n '0026': ['DS', '1', 'RTImageSID'],\n '0028': ['DS', '1', 'SourceToReferenceObjectDistance'],\n '0029': ['IS', '1', 'FractionNumber'],\n '0030': ['SQ', '1', 'ExposureSequence'],\n '0032': ['DS', '1', 'MetersetExposure'],\n '0034': ['DS', '4', 'DiaphragmPosition'],\n '0040': ['SQ', '1', 'FluenceMapSequence'],\n '0041': ['CS', '1', 'FluenceDataSource'],\n '0042': ['DS', '1', 'FluenceDataScale'],\n '0050': ['SQ', '1', 'PrimaryFluenceModeSequence'],\n '0051': ['CS', '1', 'FluenceMode'],\n '0052': ['SH', '1', 'FluenceModeID']\n },\n '3004': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'DVHType'],\n '0002': ['CS', '1', 'DoseUnits'],\n '0004': ['CS', '1', 'DoseType'],\n '0005': ['CS', '1', 'SpatialTransformOfDose'],\n '0006': ['LO', '1', 'DoseComment'],\n '0008': ['DS', '3', 'NormalizationPoint'],\n '000A': ['CS', '1', 'DoseSummationType'],\n '000C': ['DS', '2-n', 'GridFrameOffsetVector'],\n '000E': ['DS', '1', 'DoseGridScaling'],\n '0010': ['SQ', '1', 'RTDoseROISequence'],\n '0012': ['DS', '1', 'DoseValue'],\n '0014': ['CS', '1-3', 'TissueHeterogeneityCorrection'],\n '0040': ['DS', '3', 'DVHNormalizationPoint'],\n '0042': ['DS', '1', 'DVHNormalizationDoseValue'],\n '0050': ['SQ', '1', 'DVHSequence'],\n '0052': ['DS', '1', 'DVHDoseScaling'],\n '0054': ['CS', '1', 'DVHVolumeUnits'],\n '0056': ['IS', '1', 'DVHNumberOfBins'],\n '0058': ['DS', '2-2n', 'DVHData'],\n '0060': ['SQ', '1', 'DVHReferencedROISequence'],\n '0062': ['CS', '1', 'DVHROIContributionType'],\n '0070': ['DS', '1', 'DVHMinimumDose'],\n '0072': ['DS', '1', 'DVHMaximumDose'],\n '0074': ['DS', '1', 'DVHMeanDose']\n },\n '3006': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'StructureSetLabel'],\n '0004': ['LO', '1', 'StructureSetName'],\n '0006': ['ST', '1', 'StructureSetDescription'],\n '0008': ['DA', '1', 'StructureSetDate'],\n '0009': ['TM', '1', 'StructureSetTime'],\n '0010': ['SQ', '1', 'ReferencedFrameOfReferenceSequence'],\n '0012': ['SQ', '1', 'RTReferencedStudySequence'],\n '0014': ['SQ', '1', 'RTReferencedSeriesSequence'],\n '0016': ['SQ', '1', 'ContourImageSequence'],\n '0018': ['SQ', '1', 'PredecessorStructureSetSequence'],\n '0020': ['SQ', '1', 'StructureSetROISequence'],\n '0022': ['IS', '1', 'ROINumber'],\n '0024': ['UI', '1', 'ReferencedFrameOfReferenceUID'],\n '0026': ['LO', '1', 'ROIName'],\n '0028': ['ST', '1', 'ROIDescription'],\n '002A': ['IS', '3', 'ROIDisplayColor'],\n '002C': ['DS', '1', 'ROIVolume'],\n '0030': ['SQ', '1', 'RTRelatedROISequence'],\n '0033': ['CS', '1', 'RTROIRelationship'],\n '0036': ['CS', '1', 'ROIGenerationAlgorithm'],\n '0037': ['SQ', '1', 'ROIDerivationAlgorithmIdentificationSequence'],\n '0038': ['LO', '1', 'ROIGenerationDescription'],\n '0039': ['SQ', '1', 'ROIContourSequence'],\n '0040': ['SQ', '1', 'ContourSequence'],\n '0042': ['CS', '1', 'ContourGeometricType'],\n '0044': ['DS', '1', 'ContourSlabThickness'],\n '0045': ['DS', '3', 'ContourOffsetVector'],\n '0046': ['IS', '1', 'NumberOfContourPoints'],\n '0048': ['IS', '1', 'ContourNumber'],\n '0049': ['IS', '1-n', 'AttachedContours'],\n '004A': ['SQ', '1', 'SourcePixelPlanesCharacteristicsSequence'],\n '0050': ['DS', '3-3n', 'ContourData'],\n '0080': ['SQ', '1', 'RTROIObservationsSequence'],\n '0082': ['IS', '1', 'ObservationNumber'],\n '0084': ['IS', '1', 'ReferencedROINumber'],\n '0085': ['SH', '1', 'ROIObservationLabel'],\n '0086': ['SQ', '1', 'RTROIIdentificationCodeSequence'],\n '0088': ['ST', '1', 'ROIObservationDescription'],\n '00A0': ['SQ', '1', 'RelatedRTROIObservationsSequence'],\n '00A4': ['CS', '1', 'RTROIInterpretedType'],\n '00A6': ['PN', '1', 'ROIInterpreter'],\n '00B0': ['SQ', '1', 'ROIPhysicalPropertiesSequence'],\n '00B2': ['CS', '1', 'ROIPhysicalProperty'],\n '00B4': ['DS', '1', 'ROIPhysicalPropertyValue'],\n '00B6': ['SQ', '1', 'ROIElementalCompositionSequence'],\n '00B7': ['US', '1', 'ROIElementalCompositionAtomicNumber'],\n '00B8': ['FL', '1', 'ROIElementalCompositionAtomicMassFraction'],\n '00B9': ['SQ', '1', 'AdditionalRTROIIdentificationCodeSequence'],\n '00C0': ['SQ', '1', 'FrameOfReferenceRelationshipSequence'],\n '00C2': ['UI', '1', 'RelatedFrameOfReferenceUID'],\n '00C4': ['CS', '1', 'FrameOfReferenceTransformationType'],\n '00C6': ['DS', '16', 'FrameOfReferenceTransformationMatrix'],\n '00C8': ['LO', '1', 'FrameOfReferenceTransformationComment'],\n '00C9': ['SQ', '1', 'PatientLocationCoordinatesSequence'],\n '00CA': ['SQ', '1', 'PatientLocationCoordinatesCodeSequence'],\n '00CB': ['SQ', '1', 'PatientSupportPositionSequence']\n },\n '3008': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['SQ', '1', 'MeasuredDoseReferenceSequence'],\n '0012': ['ST', '1', 'MeasuredDoseDescription'],\n '0014': ['CS', '1', 'MeasuredDoseType'],\n '0016': ['DS', '1', 'MeasuredDoseValue'],\n '0020': ['SQ', '1', 'TreatmentSessionBeamSequence'],\n '0021': ['SQ', '1', 'TreatmentSessionIonBeamSequence'],\n '0022': ['IS', '1', 'CurrentFractionNumber'],\n '0024': ['DA', '1', 'TreatmentControlPointDate'],\n '0025': ['TM', '1', 'TreatmentControlPointTime'],\n '002A': ['CS', '1', 'TreatmentTerminationStatus'],\n '002B': ['SH', '1', 'TreatmentTerminationCode'],\n '002C': ['CS', '1', 'TreatmentVerificationStatus'],\n '0030': ['SQ', '1', 'ReferencedTreatmentRecordSequence'],\n '0032': ['DS', '1', 'SpecifiedPrimaryMeterset'],\n '0033': ['DS', '1', 'SpecifiedSecondaryMeterset'],\n '0036': ['DS', '1', 'DeliveredPrimaryMeterset'],\n '0037': ['DS', '1', 'DeliveredSecondaryMeterset'],\n '003A': ['DS', '1', 'SpecifiedTreatmentTime'],\n '003B': ['DS', '1', 'DeliveredTreatmentTime'],\n '0040': ['SQ', '1', 'ControlPointDeliverySequence'],\n '0041': ['SQ', '1', 'IonControlPointDeliverySequence'],\n '0042': ['DS', '1', 'SpecifiedMeterset'],\n '0044': ['DS', '1', 'DeliveredMeterset'],\n '0045': ['FL', '1', 'MetersetRateSet'],\n '0046': ['FL', '1', 'MetersetRateDelivered'],\n '0047': ['FL', '1-n', 'ScanSpotMetersetsDelivered'],\n '0048': ['DS', '1', 'DoseRateDelivered'],\n '0050': ['SQ', '1', 'TreatmentSummaryCalculatedDoseReferenceSequence'],\n '0052': ['DS', '1', 'CumulativeDoseToDoseReference'],\n '0054': ['DA', '1', 'FirstTreatmentDate'],\n '0056': ['DA', '1', 'MostRecentTreatmentDate'],\n '005A': ['IS', '1', 'NumberOfFractionsDelivered'],\n '0060': ['SQ', '1', 'OverrideSequence'],\n '0061': ['AT', '1', 'ParameterSequencePointer'],\n '0062': ['AT', '1', 'OverrideParameterPointer'],\n '0063': ['IS', '1', 'ParameterItemIndex'],\n '0064': ['IS', '1', 'MeasuredDoseReferenceNumber'],\n '0065': ['AT', '1', 'ParameterPointer'],\n '0066': ['ST', '1', 'OverrideReason'],\n '0067': ['US', '1', 'ParameterValueNumber'],\n '0068': ['SQ', '1', 'CorrectedParameterSequence'],\n '006A': ['FL', '1', 'CorrectionValue'],\n '0070': ['SQ', '1', 'CalculatedDoseReferenceSequence'],\n '0072': ['IS', '1', 'CalculatedDoseReferenceNumber'],\n '0074': ['ST', '1', 'CalculatedDoseReferenceDescription'],\n '0076': ['DS', '1', 'CalculatedDoseReferenceDoseValue'],\n '0078': ['DS', '1', 'StartMeterset'],\n '007A': ['DS', '1', 'EndMeterset'],\n '0080': ['SQ', '1', 'ReferencedMeasuredDoseReferenceSequence'],\n '0082': ['IS', '1', 'ReferencedMeasuredDoseReferenceNumber'],\n '0090': ['SQ', '1', 'ReferencedCalculatedDoseReferenceSequence'],\n '0092': ['IS', '1', 'ReferencedCalculatedDoseReferenceNumber'],\n '00A0': ['SQ', '1', 'BeamLimitingDeviceLeafPairsSequence'],\n '00B0': ['SQ', '1', 'RecordedWedgeSequence'],\n '00C0': ['SQ', '1', 'RecordedCompensatorSequence'],\n '00D0': ['SQ', '1', 'RecordedBlockSequence'],\n '00D1': ['SQ', '1', 'RecordedBlockSlabSequence'],\n '00E0': ['SQ', '1', 'TreatmentSummaryMeasuredDoseReferenceSequence'],\n '00F0': ['SQ', '1', 'RecordedSnoutSequence'],\n '00F2': ['SQ', '1', 'RecordedRangeShifterSequence'],\n '00F4': ['SQ', '1', 'RecordedLateralSpreadingDeviceSequence'],\n '00F6': ['SQ', '1', 'RecordedRangeModulatorSequence'],\n '0100': ['SQ', '1', 'RecordedSourceSequence'],\n '0105': ['LO', '1', 'SourceSerialNumber'],\n '0110': ['SQ', '1', 'TreatmentSessionApplicationSetupSequence'],\n '0116': ['CS', '1', 'ApplicationSetupCheck'],\n '0120': ['SQ', '1', 'RecordedBrachyAccessoryDeviceSequence'],\n '0122': ['IS', '1', 'ReferencedBrachyAccessoryDeviceNumber'],\n '0130': ['SQ', '1', 'RecordedChannelSequence'],\n '0132': ['DS', '1', 'SpecifiedChannelTotalTime'],\n '0134': ['DS', '1', 'DeliveredChannelTotalTime'],\n '0136': ['IS', '1', 'SpecifiedNumberOfPulses'],\n '0138': ['IS', '1', 'DeliveredNumberOfPulses'],\n '013A': ['DS', '1', 'SpecifiedPulseRepetitionInterval'],\n '013C': ['DS', '1', 'DeliveredPulseRepetitionInterval'],\n '0140': ['SQ', '1', 'RecordedSourceApplicatorSequence'],\n '0142': ['IS', '1', 'ReferencedSourceApplicatorNumber'],\n '0150': ['SQ', '1', 'RecordedChannelShieldSequence'],\n '0152': ['IS', '1', 'ReferencedChannelShieldNumber'],\n '0160': ['SQ', '1', 'BrachyControlPointDeliveredSequence'],\n '0162': ['DA', '1', 'SafePositionExitDate'],\n '0164': ['TM', '1', 'SafePositionExitTime'],\n '0166': ['DA', '1', 'SafePositionReturnDate'],\n '0168': ['TM', '1', 'SafePositionReturnTime'],\n '0171': ['SQ', '1', 'PulseSpecificBrachyControlPointDeliveredSequence'],\n '0172': ['US', '1', 'PulseNumber'],\n '0173': ['SQ', '1', 'BrachyPulseControlPointDeliveredSequence'],\n '0200': ['CS', '1', 'CurrentTreatmentStatus'],\n '0202': ['ST', '1', 'TreatmentStatusComment'],\n '0220': ['SQ', '1', 'FractionGroupSummarySequence'],\n '0223': ['IS', '1', 'ReferencedFractionNumber'],\n '0224': ['CS', '1', 'FractionGroupType'],\n '0230': ['CS', '1', 'BeamStopperPosition'],\n '0240': ['SQ', '1', 'FractionStatusSummarySequence'],\n '0250': ['DA', '1', 'TreatmentDate'],\n '0251': ['TM', '1', 'TreatmentTime']\n },\n '300A': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SH', '1', 'RTPlanLabel'],\n '0003': ['LO', '1', 'RTPlanName'],\n '0004': ['ST', '1', 'RTPlanDescription'],\n '0006': ['DA', '1', 'RTPlanDate'],\n '0007': ['TM', '1', 'RTPlanTime'],\n '0009': ['LO', '1-n', 'TreatmentProtocols'],\n '000A': ['CS', '1', 'PlanIntent'],\n '000B': ['LO', '1-n', 'TreatmentSites'],\n '000C': ['CS', '1', 'RTPlanGeometry'],\n '000E': ['ST', '1', 'PrescriptionDescription'],\n '0010': ['SQ', '1', 'DoseReferenceSequence'],\n '0012': ['IS', '1', 'DoseReferenceNumber'],\n '0013': ['UI', '1', 'DoseReferenceUID'],\n '0014': ['CS', '1', 'DoseReferenceStructureType'],\n '0015': ['CS', '1', 'NominalBeamEnergyUnit'],\n '0016': ['LO', '1', 'DoseReferenceDescription'],\n '0018': ['DS', '3', 'DoseReferencePointCoordinates'],\n '001A': ['DS', '1', 'NominalPriorDose'],\n '0020': ['CS', '1', 'DoseReferenceType'],\n '0021': ['DS', '1', 'ConstraintWeight'],\n '0022': ['DS', '1', 'DeliveryWarningDose'],\n '0023': ['DS', '1', 'DeliveryMaximumDose'],\n '0025': ['DS', '1', 'TargetMinimumDose'],\n '0026': ['DS', '1', 'TargetPrescriptionDose'],\n '0027': ['DS', '1', 'TargetMaximumDose'],\n '0028': ['DS', '1', 'TargetUnderdoseVolumeFraction'],\n '002A': ['DS', '1', 'OrganAtRiskFullVolumeDose'],\n '002B': ['DS', '1', 'OrganAtRiskLimitDose'],\n '002C': ['DS', '1', 'OrganAtRiskMaximumDose'],\n '002D': ['DS', '1', 'OrganAtRiskOverdoseVolumeFraction'],\n '0040': ['SQ', '1', 'ToleranceTableSequence'],\n '0042': ['IS', '1', 'ToleranceTableNumber'],\n '0043': ['SH', '1', 'ToleranceTableLabel'],\n '0044': ['DS', '1', 'GantryAngleTolerance'],\n '0046': ['DS', '1', 'BeamLimitingDeviceAngleTolerance'],\n '0048': ['SQ', '1', 'BeamLimitingDeviceToleranceSequence'],\n '004A': ['DS', '1', 'BeamLimitingDevicePositionTolerance'],\n '004B': ['FL', '1', 'SnoutPositionTolerance'],\n '004C': ['DS', '1', 'PatientSupportAngleTolerance'],\n '004E': ['DS', '1', 'TableTopEccentricAngleTolerance'],\n '004F': ['FL', '1', 'TableTopPitchAngleTolerance'],\n '0050': ['FL', '1', 'TableTopRollAngleTolerance'],\n '0051': ['DS', '1', 'TableTopVerticalPositionTolerance'],\n '0052': ['DS', '1', 'TableTopLongitudinalPositionTolerance'],\n '0053': ['DS', '1', 'TableTopLateralPositionTolerance'],\n '0055': ['CS', '1', 'RTPlanRelationship'],\n '0070': ['SQ', '1', 'FractionGroupSequence'],\n '0071': ['IS', '1', 'FractionGroupNumber'],\n '0072': ['LO', '1', 'FractionGroupDescription'],\n '0078': ['IS', '1', 'NumberOfFractionsPlanned'],\n '0079': ['IS', '1', 'NumberOfFractionPatternDigitsPerDay'],\n '007A': ['IS', '1', 'RepeatFractionCycleLength'],\n '007B': ['LT', '1', 'FractionPattern'],\n '0080': ['IS', '1', 'NumberOfBeams'],\n '0082': ['DS', '3', 'BeamDoseSpecificationPoint'],\n '0083': ['UI', '1', 'ReferencedDoseReferenceUID'],\n '0084': ['DS', '1', 'BeamDose'],\n '0086': ['DS', '1', 'BeamMeterset'],\n '0088': ['FL', '1', 'BeamDosePointDepth'],\n '0089': ['FL', '1', 'BeamDosePointEquivalentDepth'],\n '008A': ['FL', '1', 'BeamDosePointSSD'],\n '008B': ['CS', '1', 'BeamDoseMeaning'],\n '008C': ['SQ', '1', 'BeamDoseVerificationControlPointSequence'],\n '008D': ['FL', '1', 'AverageBeamDosePointDepth'],\n '008E': ['FL', '1', 'AverageBeamDosePointEquivalentDepth'],\n '008F': ['FL', '1', 'AverageBeamDosePointSSD'],\n '0090': ['CS', '1', 'BeamDoseType'],\n '0091': ['DS', '1', 'AlternateBeamDose'],\n '0092': ['CS', '1', 'AlternateBeamDoseType'],\n '0093': ['CS', '1', 'DepthValueAveragingFlag'],\n '0094': ['DS', '1', 'BeamDosePointSourceToExternalContourDistance'],\n '00A0': ['IS', '1', 'NumberOfBrachyApplicationSetups'],\n '00A2': ['DS', '3', 'BrachyApplicationSetupDoseSpecificationPoint'],\n '00A4': ['DS', '1', 'BrachyApplicationSetupDose'],\n '00B0': ['SQ', '1', 'BeamSequence'],\n '00B2': ['SH', '1', 'TreatmentMachineName'],\n '00B3': ['CS', '1', 'PrimaryDosimeterUnit'],\n '00B4': ['DS', '1', 'SourceAxisDistance'],\n '00B6': ['SQ', '1', 'BeamLimitingDeviceSequence'],\n '00B8': ['CS', '1', 'RTBeamLimitingDeviceType'],\n '00BA': ['DS', '1', 'SourceToBeamLimitingDeviceDistance'],\n '00BB': ['FL', '1', 'IsocenterToBeamLimitingDeviceDistance'],\n '00BC': ['IS', '1', 'NumberOfLeafJawPairs'],\n '00BE': ['DS', '3-n', 'LeafPositionBoundaries'],\n '00C0': ['IS', '1', 'BeamNumber'],\n '00C2': ['LO', '1', 'BeamName'],\n '00C3': ['ST', '1', 'BeamDescription'],\n '00C4': ['CS', '1', 'BeamType'],\n '00C5': ['FD', '1', 'BeamDeliveryDurationLimit'],\n '00C6': ['CS', '1', 'RadiationType'],\n '00C7': ['CS', '1', 'HighDoseTechniqueType'],\n '00C8': ['IS', '1', 'ReferenceImageNumber'],\n '00CA': ['SQ', '1', 'PlannedVerificationImageSequence'],\n '00CC': ['LO', '1-n', 'ImagingDeviceSpecificAcquisitionParameters'],\n '00CE': ['CS', '1', 'TreatmentDeliveryType'],\n '00D0': ['IS', '1', 'NumberOfWedges'],\n '00D1': ['SQ', '1', 'WedgeSequence'],\n '00D2': ['IS', '1', 'WedgeNumber'],\n '00D3': ['CS', '1', 'WedgeType'],\n '00D4': ['SH', '1', 'WedgeID'],\n '00D5': ['IS', '1', 'WedgeAngle'],\n '00D6': ['DS', '1', 'WedgeFactor'],\n '00D7': ['FL', '1', 'TotalWedgeTrayWaterEquivalentThickness'],\n '00D8': ['DS', '1', 'WedgeOrientation'],\n '00D9': ['FL', '1', 'IsocenterToWedgeTrayDistance'],\n '00DA': ['DS', '1', 'SourceToWedgeTrayDistance'],\n '00DB': ['FL', '1', 'WedgeThinEdgePosition'],\n '00DC': ['SH', '1', 'BolusID'],\n '00DD': ['ST', '1', 'BolusDescription'],\n '00DE': ['DS', '1', 'EffectiveWedgeAngle'],\n '00E0': ['IS', '1', 'NumberOfCompensators'],\n '00E1': ['SH', '1', 'MaterialID'],\n '00E2': ['DS', '1', 'TotalCompensatorTrayFactor'],\n '00E3': ['SQ', '1', 'CompensatorSequence'],\n '00E4': ['IS', '1', 'CompensatorNumber'],\n '00E5': ['SH', '1', 'CompensatorID'],\n '00E6': ['DS', '1', 'SourceToCompensatorTrayDistance'],\n '00E7': ['IS', '1', 'CompensatorRows'],\n '00E8': ['IS', '1', 'CompensatorColumns'],\n '00E9': ['DS', '2', 'CompensatorPixelSpacing'],\n '00EA': ['DS', '2', 'CompensatorPosition'],\n '00EB': ['DS', '1-n', 'CompensatorTransmissionData'],\n '00EC': ['DS', '1-n', 'CompensatorThicknessData'],\n '00ED': ['IS', '1', 'NumberOfBoli'],\n '00EE': ['CS', '1', 'CompensatorType'],\n '00EF': ['SH', '1', 'CompensatorTrayID'],\n '00F0': ['IS', '1', 'NumberOfBlocks'],\n '00F2': ['DS', '1', 'TotalBlockTrayFactor'],\n '00F3': ['FL', '1', 'TotalBlockTrayWaterEquivalentThickness'],\n '00F4': ['SQ', '1', 'BlockSequence'],\n '00F5': ['SH', '1', 'BlockTrayID'],\n '00F6': ['DS', '1', 'SourceToBlockTrayDistance'],\n '00F7': ['FL', '1', 'IsocenterToBlockTrayDistance'],\n '00F8': ['CS', '1', 'BlockType'],\n '00F9': ['LO', '1', 'AccessoryCode'],\n '00FA': ['CS', '1', 'BlockDivergence'],\n '00FB': ['CS', '1', 'BlockMountingPosition'],\n '00FC': ['IS', '1', 'BlockNumber'],\n '00FE': ['LO', '1', 'BlockName'],\n '0100': ['DS', '1', 'BlockThickness'],\n '0102': ['DS', '1', 'BlockTransmission'],\n '0104': ['IS', '1', 'BlockNumberOfPoints'],\n '0106': ['DS', '2-2n', 'BlockData'],\n '0107': ['SQ', '1', 'ApplicatorSequence'],\n '0108': ['SH', '1', 'ApplicatorID'],\n '0109': ['CS', '1', 'ApplicatorType'],\n '010A': ['LO', '1', 'ApplicatorDescription'],\n '010C': ['DS', '1', 'CumulativeDoseReferenceCoefficient'],\n '010E': ['DS', '1', 'FinalCumulativeMetersetWeight'],\n '0110': ['IS', '1', 'NumberOfControlPoints'],\n '0111': ['SQ', '1', 'ControlPointSequence'],\n '0112': ['IS', '1', 'ControlPointIndex'],\n '0114': ['DS', '1', 'NominalBeamEnergy'],\n '0115': ['DS', '1', 'DoseRateSet'],\n '0116': ['SQ', '1', 'WedgePositionSequence'],\n '0118': ['CS', '1', 'WedgePosition'],\n '011A': ['SQ', '1', 'BeamLimitingDevicePositionSequence'],\n '011C': ['DS', '2-2n', 'LeafJawPositions'],\n '011E': ['DS', '1', 'GantryAngle'],\n '011F': ['CS', '1', 'GantryRotationDirection'],\n '0120': ['DS', '1', 'BeamLimitingDeviceAngle'],\n '0121': ['CS', '1', 'BeamLimitingDeviceRotationDirection'],\n '0122': ['DS', '1', 'PatientSupportAngle'],\n '0123': ['CS', '1', 'PatientSupportRotationDirection'],\n '0124': ['DS', '1', 'TableTopEccentricAxisDistance'],\n '0125': ['DS', '1', 'TableTopEccentricAngle'],\n '0126': ['CS', '1', 'TableTopEccentricRotationDirection'],\n '0128': ['DS', '1', 'TableTopVerticalPosition'],\n '0129': ['DS', '1', 'TableTopLongitudinalPosition'],\n '012A': ['DS', '1', 'TableTopLateralPosition'],\n '012C': ['DS', '3', 'IsocenterPosition'],\n '012E': ['DS', '3', 'SurfaceEntryPoint'],\n '0130': ['DS', '1', 'SourceToSurfaceDistance'],\n '0131': ['FL', '1', 'AverageBeamDosePointSourceToExternalContourDistance'],\n '0132': ['FL', '1', 'SourceToExternalContourDistance'],\n '0133': ['FL', '3', 'ExternalContourEntryPoint'],\n '0134': ['DS', '1', 'CumulativeMetersetWeight'],\n '0140': ['FL', '1', 'TableTopPitchAngle'],\n '0142': ['CS', '1', 'TableTopPitchRotationDirection'],\n '0144': ['FL', '1', 'TableTopRollAngle'],\n '0146': ['CS', '1', 'TableTopRollRotationDirection'],\n '0148': ['FL', '1', 'HeadFixationAngle'],\n '014A': ['FL', '1', 'GantryPitchAngle'],\n '014C': ['CS', '1', 'GantryPitchRotationDirection'],\n '014E': ['FL', '1', 'GantryPitchAngleTolerance'],\n '0150': ['CS', '1', 'FixationEye'],\n '0151': ['DS', '1', 'ChairHeadFramePosition'],\n '0152': ['DS', '1', 'HeadFixationAngleTolerance'],\n '0153': ['DS', '1', 'ChairHeadFramePositionTolerance'],\n '0154': ['DS', '1', 'FixationLightAzimuthalAngleTolerance'],\n '0155': ['DS', '1', 'FixationLightPolarAngleTolerance'],\n '0180': ['SQ', '1', 'PatientSetupSequence'],\n '0182': ['IS', '1', 'PatientSetupNumber'],\n '0183': ['LO', '1', 'PatientSetupLabel'],\n '0184': ['LO', '1', 'PatientAdditionalPosition'],\n '0190': ['SQ', '1', 'FixationDeviceSequence'],\n '0192': ['CS', '1', 'FixationDeviceType'],\n '0194': ['SH', '1', 'FixationDeviceLabel'],\n '0196': ['ST', '1', 'FixationDeviceDescription'],\n '0198': ['SH', '1', 'FixationDevicePosition'],\n '0199': ['FL', '1', 'FixationDevicePitchAngle'],\n '019A': ['FL', '1', 'FixationDeviceRollAngle'],\n '01A0': ['SQ', '1', 'ShieldingDeviceSequence'],\n '01A2': ['CS', '1', 'ShieldingDeviceType'],\n '01A4': ['SH', '1', 'ShieldingDeviceLabel'],\n '01A6': ['ST', '1', 'ShieldingDeviceDescription'],\n '01A8': ['SH', '1', 'ShieldingDevicePosition'],\n '01B0': ['CS', '1', 'SetupTechnique'],\n '01B2': ['ST', '1', 'SetupTechniqueDescription'],\n '01B4': ['SQ', '1', 'SetupDeviceSequence'],\n '01B6': ['CS', '1', 'SetupDeviceType'],\n '01B8': ['SH', '1', 'SetupDeviceLabel'],\n '01BA': ['ST', '1', 'SetupDeviceDescription'],\n '01BC': ['DS', '1', 'SetupDeviceParameter'],\n '01D0': ['ST', '1', 'SetupReferenceDescription'],\n '01D2': ['DS', '1', 'TableTopVerticalSetupDisplacement'],\n '01D4': ['DS', '1', 'TableTopLongitudinalSetupDisplacement'],\n '01D6': ['DS', '1', 'TableTopLateralSetupDisplacement'],\n '0200': ['CS', '1', 'BrachyTreatmentTechnique'],\n '0202': ['CS', '1', 'BrachyTreatmentType'],\n '0206': ['SQ', '1', 'TreatmentMachineSequence'],\n '0210': ['SQ', '1', 'SourceSequence'],\n '0212': ['IS', '1', 'SourceNumber'],\n '0214': ['CS', '1', 'SourceType'],\n '0216': ['LO', '1', 'SourceManufacturer'],\n '0218': ['DS', '1', 'ActiveSourceDiameter'],\n '021A': ['DS', '1', 'ActiveSourceLength'],\n '021B': ['SH', '1', 'SourceModelID'],\n '021C': ['LO', '1', 'SourceDescription'],\n '0222': ['DS', '1', 'SourceEncapsulationNominalThickness'],\n '0224': ['DS', '1', 'SourceEncapsulationNominalTransmission'],\n '0226': ['LO', '1', 'SourceIsotopeName'],\n '0228': ['DS', '1', 'SourceIsotopeHalfLife'],\n '0229': ['CS', '1', 'SourceStrengthUnits'],\n '022A': ['DS', '1', 'ReferenceAirKermaRate'],\n '022B': ['DS', '1', 'SourceStrength'],\n '022C': ['DA', '1', 'SourceStrengthReferenceDate'],\n '022E': ['TM', '1', 'SourceStrengthReferenceTime'],\n '0230': ['SQ', '1', 'ApplicationSetupSequence'],\n '0232': ['CS', '1', 'ApplicationSetupType'],\n '0234': ['IS', '1', 'ApplicationSetupNumber'],\n '0236': ['LO', '1', 'ApplicationSetupName'],\n '0238': ['LO', '1', 'ApplicationSetupManufacturer'],\n '0240': ['IS', '1', 'TemplateNumber'],\n '0242': ['SH', '1', 'TemplateType'],\n '0244': ['LO', '1', 'TemplateName'],\n '0250': ['DS', '1', 'TotalReferenceAirKerma'],\n '0260': ['SQ', '1', 'BrachyAccessoryDeviceSequence'],\n '0262': ['IS', '1', 'BrachyAccessoryDeviceNumber'],\n '0263': ['SH', '1', 'BrachyAccessoryDeviceID'],\n '0264': ['CS', '1', 'BrachyAccessoryDeviceType'],\n '0266': ['LO', '1', 'BrachyAccessoryDeviceName'],\n '026A': ['DS', '1', 'BrachyAccessoryDeviceNominalThickness'],\n '026C': ['DS', '1', 'BrachyAccessoryDeviceNominalTransmission'],\n '0271': ['DS', '1', 'ChannelEffectiveLength'],\n '0272': ['DS', '1', 'ChannelInnerLength'],\n '0273': ['SH', '1', 'AfterloaderChannelID'],\n '0274': ['DS', '1', 'SourceApplicatorTipLength'],\n '0280': ['SQ', '1', 'ChannelSequence'],\n '0282': ['IS', '1', 'ChannelNumber'],\n '0284': ['DS', '1', 'ChannelLength'],\n '0286': ['DS', '1', 'ChannelTotalTime'],\n '0288': ['CS', '1', 'SourceMovementType'],\n '028A': ['IS', '1', 'NumberOfPulses'],\n '028C': ['DS', '1', 'PulseRepetitionInterval'],\n '0290': ['IS', '1', 'SourceApplicatorNumber'],\n '0291': ['SH', '1', 'SourceApplicatorID'],\n '0292': ['CS', '1', 'SourceApplicatorType'],\n '0294': ['LO', '1', 'SourceApplicatorName'],\n '0296': ['DS', '1', 'SourceApplicatorLength'],\n '0298': ['LO', '1', 'SourceApplicatorManufacturer'],\n '029C': ['DS', '1', 'SourceApplicatorWallNominalThickness'],\n '029E': ['DS', '1', 'SourceApplicatorWallNominalTransmission'],\n '02A0': ['DS', '1', 'SourceApplicatorStepSize'],\n '02A1': ['IS', '1', 'ApplicatorShapeReferencedROINumber'],\n '02A2': ['IS', '1', 'TransferTubeNumber'],\n '02A4': ['DS', '1', 'TransferTubeLength'],\n '02B0': ['SQ', '1', 'ChannelShieldSequence'],\n '02B2': ['IS', '1', 'ChannelShieldNumber'],\n '02B3': ['SH', '1', 'ChannelShieldID'],\n '02B4': ['LO', '1', 'ChannelShieldName'],\n '02B8': ['DS', '1', 'ChannelShieldNominalThickness'],\n '02BA': ['DS', '1', 'ChannelShieldNominalTransmission'],\n '02C8': ['DS', '1', 'FinalCumulativeTimeWeight'],\n '02D0': ['SQ', '1', 'BrachyControlPointSequence'],\n '02D2': ['DS', '1', 'ControlPointRelativePosition'],\n '02D4': ['DS', '3', 'ControlPoint3DPosition'],\n '02D6': ['DS', '1', 'CumulativeTimeWeight'],\n '02E0': ['CS', '1', 'CompensatorDivergence'],\n '02E1': ['CS', '1', 'CompensatorMountingPosition'],\n '02E2': ['DS', '1-n', 'SourceToCompensatorDistance'],\n '02E3': ['FL', '1', 'TotalCompensatorTrayWaterEquivalentThickness'],\n '02E4': ['FL', '1', 'IsocenterToCompensatorTrayDistance'],\n '02E5': ['FL', '1', 'CompensatorColumnOffset'],\n '02E6': ['FL', '1-n', 'IsocenterToCompensatorDistances'],\n '02E7': ['FL', '1', 'CompensatorRelativeStoppingPowerRatio'],\n '02E8': ['FL', '1', 'CompensatorMillingToolDiameter'],\n '02EA': ['SQ', '1', 'IonRangeCompensatorSequence'],\n '02EB': ['LT', '1', 'CompensatorDescription'],\n '0302': ['IS', '1', 'RadiationMassNumber'],\n '0304': ['IS', '1', 'RadiationAtomicNumber'],\n '0306': ['SS', '1', 'RadiationChargeState'],\n '0308': ['CS', '1', 'ScanMode'],\n '0309': ['CS', '1', 'ModulatedScanModeType'],\n '030A': ['FL', '2', 'VirtualSourceAxisDistances'],\n '030C': ['SQ', '1', 'SnoutSequence'],\n '030D': ['FL', '1', 'SnoutPosition'],\n '030F': ['SH', '1', 'SnoutID'],\n '0312': ['IS', '1', 'NumberOfRangeShifters'],\n '0314': ['SQ', '1', 'RangeShifterSequence'],\n '0316': ['IS', '1', 'RangeShifterNumber'],\n '0318': ['SH', '1', 'RangeShifterID'],\n '0320': ['CS', '1', 'RangeShifterType'],\n '0322': ['LO', '1', 'RangeShifterDescription'],\n '0330': ['IS', '1', 'NumberOfLateralSpreadingDevices'],\n '0332': ['SQ', '1', 'LateralSpreadingDeviceSequence'],\n '0334': ['IS', '1', 'LateralSpreadingDeviceNumber'],\n '0336': ['SH', '1', 'LateralSpreadingDeviceID'],\n '0338': ['CS', '1', 'LateralSpreadingDeviceType'],\n '033A': ['LO', '1', 'LateralSpreadingDeviceDescription'],\n '033C': ['FL', '1', 'LateralSpreadingDeviceWaterEquivalentThickness'],\n '0340': ['IS', '1', 'NumberOfRangeModulators'],\n '0342': ['SQ', '1', 'RangeModulatorSequence'],\n '0344': ['IS', '1', 'RangeModulatorNumber'],\n '0346': ['SH', '1', 'RangeModulatorID'],\n '0348': ['CS', '1', 'RangeModulatorType'],\n '034A': ['LO', '1', 'RangeModulatorDescription'],\n '034C': ['SH', '1', 'BeamCurrentModulationID'],\n '0350': ['CS', '1', 'PatientSupportType'],\n '0352': ['SH', '1', 'PatientSupportID'],\n '0354': ['LO', '1', 'PatientSupportAccessoryCode'],\n '0355': ['LO', '1', 'TrayAccessoryCode'],\n '0356': ['FL', '1', 'FixationLightAzimuthalAngle'],\n '0358': ['FL', '1', 'FixationLightPolarAngle'],\n '035A': ['FL', '1', 'MetersetRate'],\n '0360': ['SQ', '1', 'RangeShifterSettingsSequence'],\n '0362': ['LO', '1', 'RangeShifterSetting'],\n '0364': ['FL', '1', 'IsocenterToRangeShifterDistance'],\n '0366': ['FL', '1', 'RangeShifterWaterEquivalentThickness'],\n '0370': ['SQ', '1', 'LateralSpreadingDeviceSettingsSequence'],\n '0372': ['LO', '1', 'LateralSpreadingDeviceSetting'],\n '0374': ['FL', '1', 'IsocenterToLateralSpreadingDeviceDistance'],\n '0380': ['SQ', '1', 'RangeModulatorSettingsSequence'],\n '0382': ['FL', '1', 'RangeModulatorGatingStartValue'],\n '0384': ['FL', '1', 'RangeModulatorGatingStopValue'],\n '0386': ['FL', '1', 'RangeModulatorGatingStartWaterEquivalentThickness'],\n '0388': ['FL', '1', 'RangeModulatorGatingStopWaterEquivalentThickness'],\n '038A': ['FL', '1', 'IsocenterToRangeModulatorDistance'],\n '038F': ['FL', '1-n', 'ScanSpotTimeOffset'],\n '0390': ['SH', '1', 'ScanSpotTuneID'],\n '0391': ['IS', '1-n', 'ScanSpotPrescribedIndices'],\n '0392': ['IS', '1', 'NumberOfScanSpotPositions'],\n '0393': ['CS', '1', 'ScanSpotReordered'],\n '0394': ['FL', '1-n', 'ScanSpotPositionMap'],\n '0395': ['CS', '1', 'ScanSpotReorderingAllowed'],\n '0396': ['FL', '1-n', 'ScanSpotMetersetWeights'],\n '0398': ['FL', '2', 'ScanningSpotSize'],\n '0399': ['FL', '2-2n', 'ScanSpotSizesDelivered'],\n '039A': ['IS', '1', 'NumberOfPaintings'],\n '03A0': ['SQ', '1', 'IonToleranceTableSequence'],\n '03A2': ['SQ', '1', 'IonBeamSequence'],\n '03A4': ['SQ', '1', 'IonBeamLimitingDeviceSequence'],\n '03A6': ['SQ', '1', 'IonBlockSequence'],\n '03A8': ['SQ', '1', 'IonControlPointSequence'],\n '03AA': ['SQ', '1', 'IonWedgeSequence'],\n '03AC': ['SQ', '1', 'IonWedgePositionSequence'],\n '0401': ['SQ', '1', 'ReferencedSetupImageSequence'],\n '0402': ['ST', '1', 'SetupImageComment'],\n '0410': ['SQ', '1', 'MotionSynchronizationSequence'],\n '0412': ['FL', '3', 'ControlPointOrientation'],\n '0420': ['SQ', '1', 'GeneralAccessorySequence'],\n '0421': ['SH', '1', 'GeneralAccessoryID'],\n '0422': ['ST', '1', 'GeneralAccessoryDescription'],\n '0423': ['CS', '1', 'GeneralAccessoryType'],\n '0424': ['IS', '1', 'GeneralAccessoryNumber'],\n '0425': ['FL', '1', 'SourceToGeneralAccessoryDistance'],\n '0426': ['DS', '1', 'IsocenterToGeneralAccessoryDistance'],\n '0431': ['SQ', '1', 'ApplicatorGeometrySequence'],\n '0432': ['CS', '1', 'ApplicatorApertureShape'],\n '0433': ['FL', '1', 'ApplicatorOpening'],\n '0434': ['FL', '1', 'ApplicatorOpeningX'],\n '0435': ['FL', '1', 'ApplicatorOpeningY'],\n '0436': ['FL', '1', 'SourceToApplicatorMountingPositionDistance'],\n '0440': ['IS', '1', 'NumberOfBlockSlabItems'],\n '0441': ['SQ', '1', 'BlockSlabSequence'],\n '0442': ['DS', '1', 'BlockSlabThickness'],\n '0443': ['US', '1', 'BlockSlabNumber'],\n '0450': ['SQ', '1', 'DeviceMotionControlSequence'],\n '0451': ['CS', '1', 'DeviceMotionExecutionMode'],\n '0452': ['CS', '1', 'DeviceMotionObservationMode'],\n '0453': ['SQ', '1', 'DeviceMotionParameterCodeSequence'],\n '0501': ['FL', '1', 'DistalDepthFraction'],\n '0502': ['FL', '1', 'DistalDepth'],\n '0503': ['FL', '2', 'NominalRangeModulationFractions'],\n '0504': ['FL', '2', 'NominalRangeModulatedRegionDepths'],\n '0505': ['SQ', '1', 'DepthDoseParametersSequence'],\n '0506': ['SQ', '1', 'DeliveredDepthDoseParametersSequence'],\n '0507': ['FL', '1', 'DeliveredDistalDepthFraction'],\n '0508': ['FL', '1', 'DeliveredDistalDepth'],\n '0509': ['FL', '2', 'DeliveredNominalRangeModulationFractions'],\n '0510': ['FL', '2', 'DeliveredNominalRangeModulatedRegionDepths'],\n '0511': ['CS', '1', 'DeliveredReferenceDoseDefinition'],\n '0512': ['CS', '1', 'ReferenceDoseDefinition'],\n '0600': ['US', '1', 'RTControlPointIndex'],\n '0601': ['US', '1', 'RadiationGenerationModeIndex'],\n '0602': ['US', '1', 'ReferencedDefinedDeviceIndex'],\n '0603': ['US', '1', 'RadiationDoseIdentificationIndex'],\n '0604': ['US', '1', 'NumberOfRTControlPoints'],\n '0605': ['US', '1', 'ReferencedRadiationGenerationModeIndex'],\n '0606': ['US', '1', 'TreatmentPositionIndex'],\n '0607': ['US', '1', 'ReferencedDeviceIndex'],\n '0608': ['LO', '1', 'TreatmentPositionGroupLabel'],\n '0609': ['UI', '1', 'TreatmentPositionGroupUID'],\n '060A': ['SQ', '1', 'TreatmentPositionGroupSequence'],\n '060B': ['US', '1', 'ReferencedTreatmentPositionIndex'],\n '060C': ['US', '1', 'ReferencedRadiationDoseIdentificationIndex'],\n '060D': ['FD', '1', 'RTAccessoryHolderWaterEquivalentThickness'],\n '060E': ['US', '1', 'ReferencedRTAccessoryHolderDeviceIndex'],\n '060F': ['CS', '1', 'RTAccessoryHolderSlotExistenceFlag'],\n '0610': ['SQ', '1', 'RTAccessoryHolderSlotSequence'],\n '0611': ['LO', '1', 'RTAccessoryHolderSlotID'],\n '0612': ['FD', '1', 'RTAccessoryHolderSlotDistance'],\n '0613': ['FD', '1', 'RTAccessorySlotDistance'],\n '0614': ['SQ', '1', 'RTAccessoryHolderDefinitionSequence'],\n '0615': ['LO', '1', 'RTAccessoryDeviceSlotID'],\n '0616': ['SQ', '1', 'RTRadiationSequence'],\n '0617': ['SQ', '1', 'RadiationDoseSequence'],\n '0618': ['SQ', '1', 'RadiationDoseIdentificationSequence'],\n '0619': ['LO', '1', 'RadiationDoseIdentificationLabel'],\n '061A': ['CS', '1', 'ReferenceDoseType'],\n '061B': ['CS', '1', 'PrimaryDoseValueIndicator'],\n '061C': ['SQ', '1', 'DoseValuesSequence'],\n '061D': ['CS', '1-n', 'DoseValuePurpose'],\n '061E': ['FD', '3', 'ReferenceDosePointCoordinates'],\n '061F': ['SQ', '1', 'RadiationDoseValuesParametersSequence'],\n '0620': ['SQ', '1', 'MetersetToDoseMappingSequence'],\n '0621': ['SQ', '1', 'ExpectedInVivoMeasurementValuesSequence'],\n '0622': ['US', '1', 'ExpectedInVivoMeasurementValueIndex'],\n '0623': ['LO', '1', 'RadiationDoseInVivoMeasurementLabel'],\n '0624': ['FD', '2', 'RadiationDoseCentralAxisDisplacement'],\n '0625': ['FD', '1', 'RadiationDoseValue'],\n '0626': ['FD', '1', 'RadiationDoseSourceToSkinDistance'],\n '0627': ['FD', '3', 'RadiationDoseMeasurementPointCoordinates'],\n '0628': ['FD', '1', 'RadiationDoseSourceToExternalContourDistance'],\n '0629': ['SQ', '1', 'RTToleranceSetSequence'],\n '062A': ['LO', '1', 'RTToleranceSetLabel'],\n '062B': ['SQ', '1', 'AttributeToleranceValuesSequence'],\n '062C': ['FD', '1', 'ToleranceValue'],\n '062D': ['SQ', '1', 'PatientSupportPositionToleranceSequence'],\n '062E': ['FD', '1', 'TreatmentTimeLimit'],\n '062F': ['SQ', '1', 'CArmPhotonElectronControlPointSequence'],\n '0630': ['SQ', '1', 'ReferencedRTRadiationSequence'],\n '0631': ['SQ', '1', 'ReferencedRTInstanceSequence'],\n '0632': ['SQ', '1', 'ReferencedRTPatientSetupSequence'],\n '0634': ['FD', '1', 'SourceToPatientSurfaceDistance'],\n '0635': ['SQ', '1', 'TreatmentMachineSpecialModeCodeSequence'],\n '0636': ['US', '1', 'IntendedNumberOfFractions'],\n '0637': ['CS', '1', 'RTRadiationSetIntent'],\n '0638': ['CS', '1', 'RTRadiationPhysicalAndGeometricContentDetailFlag'],\n '0639': ['CS', '1', 'RTRecordFlag'],\n '063A': ['SQ', '1', 'TreatmentDeviceIdentificationSequence'],\n '063B': ['SQ', '1', 'ReferencedRTPhysicianIntentSequence'],\n '063C': ['FD', '1', 'CumulativeMeterset'],\n '063D': ['FD', '1', 'DeliveryRate'],\n '063E': ['SQ', '1', 'DeliveryRateUnitSequence'],\n '063F': ['SQ', '1', 'TreatmentPositionSequence'],\n '0640': ['FD', '1', 'RadiationSourceAxisDistance'],\n '0641': ['US', '1', 'NumberOfRTBeamLimitingDevices'],\n '0642': ['FD', '1', 'RTBeamLimitingDeviceProximalDistance'],\n '0643': ['FD', '1', 'RTBeamLimitingDeviceDistalDistance'],\n '0644': ['SQ', '1', 'ParallelRTBeamDelimiterDeviceOrientationLabelCodeSequence'],\n '0645': ['FD', '1', 'BeamModifierOrientationAngle'],\n '0646': ['SQ', '1', 'FixedRTBeamDelimiterDeviceSequence'],\n '0647': ['SQ', '1', 'ParallelRTBeamDelimiterDeviceSequence'],\n '0648': ['US', '1', 'NumberOfParallelRTBeamDelimiters'],\n '0649': ['FD', '2-n', 'ParallelRTBeamDelimiterBoundaries'],\n '064A': ['FD', '2-n', 'ParallelRTBeamDelimiterPositions'],\n '064B': ['FD', '2', 'RTBeamLimitingDeviceOffset'],\n '064C': ['SQ', '1', 'RTBeamDelimiterGeometrySequence'],\n '064D': ['SQ', '1', 'RTBeamLimitingDeviceDefinitionSequence'],\n '064E': ['CS', '1', 'ParallelRTBeamDelimiterOpeningMode'],\n '064F': ['CS', '1-n', 'ParallelRTBeamDelimiterLeafMountingSide'],\n '0650': ['UI', '1', 'PatientSetupUID'],\n '0651': ['SQ', '1', 'WedgeDefinitionSequence'],\n '0652': ['FD', '1', 'RadiationBeamWedgeAngle'],\n '0653': ['FD', '1', 'RadiationBeamWedgeThinEdgeDistance'],\n '0654': ['FD', '1', 'RadiationBeamEffectiveWedgeAngle'],\n '0655': ['US', '1', 'NumberOfWedgePositions'],\n '0656': ['SQ', '1', 'RTBeamLimitingDeviceOpeningSequence'],\n '0657': ['US', '1', 'NumberOfRTBeamLimitingDeviceOpenings'],\n '0658': ['SQ', '1', 'RadiationDosimeterUnitSequence'],\n '0659': ['SQ', '1', 'RTDeviceDistanceReferenceLocationCodeSequence'],\n '065A': ['SQ', '1', 'RadiationDeviceConfigurationAndCommissioningKeySequence'],\n '065B': ['SQ', '1', 'PatientSupportPositionParameterSequence'],\n '065C': ['CS', '1', 'PatientSupportPositionSpecificationMethod'],\n '065D': ['SQ', '1', 'PatientSupportPositionDeviceParameterSequence'],\n '065E': ['US', '1', 'DeviceOrderIndex'],\n '065F': ['US', '1', 'PatientSupportPositionParameterOrderIndex'],\n '0660': ['SQ', '1', 'PatientSupportPositionDeviceToleranceSequence'],\n '0661': ['US', '1', 'PatientSupportPositionToleranceOrderIndex'],\n '0662': ['SQ', '1', 'CompensatorDefinitionSequence'],\n '0663': ['CS', '1', 'CompensatorMapOrientation'],\n '0664': ['OF', '1', 'CompensatorProximalThicknessMap'],\n '0665': ['OF', '1', 'CompensatorDistalThicknessMap'],\n '0666': ['FD', '1', 'CompensatorBasePlaneOffset'],\n '0667': ['SQ', '1', 'CompensatorShapeFabricationCodeSequence'],\n '0668': ['SQ', '1', 'CompensatorShapeSequence'],\n '0669': ['FD', '1', 'RadiationBeamCompensatorMillingToolDiameter'],\n '066A': ['SQ', '1', 'BlockDefinitionSequence'],\n '066B': ['OF', '1', 'BlockEdgeData'],\n '066C': ['CS', '1', 'BlockOrientation'],\n '066D': ['FD', '1', 'RadiationBeamBlockThickness'],\n '066E': ['FD', '1', 'RadiationBeamBlockSlabThickness'],\n '066F': ['SQ', '1', 'BlockEdgeDataSequence'],\n '0670': ['US', '1', 'NumberOfRTAccessoryHolders'],\n '0671': ['SQ', '1', 'GeneralAccessoryDefinitionSequence'],\n '0672': ['US', '1', 'NumberOfGeneralAccessories'],\n '0673': ['SQ', '1', 'BolusDefinitionSequence'],\n '0674': ['US', '1', 'NumberOfBoluses'],\n '0675': ['UI', '1', 'EquipmentFrameOfReferenceUID'],\n '0676': ['ST', '1', 'EquipmentFrameOfReferenceDescription'],\n '0677': ['SQ', '1', 'EquipmentReferencePointCoordinatesSequence'],\n '0678': ['SQ', '1', 'EquipmentReferencePointCodeSequence'],\n '0679': ['FD', '1', 'RTBeamLimitingDeviceAngle'],\n '067A': ['FD', '1', 'SourceRollAngle'],\n '067B': ['SQ', '1', 'RadiationGenerationModeSequence'],\n '067C': ['SH', '1', 'RadiationGenerationModeLabel'],\n '067D': ['ST', '1', 'RadiationGenerationModeDescription'],\n '067E': ['SQ', '1', 'RadiationGenerationModeMachineCodeSequence'],\n '067F': ['SQ', '1', 'RadiationTypeCodeSequence'],\n '0680': ['DS', '1', 'NominalEnergy'],\n '0681': ['DS', '1', 'MinimumNominalEnergy'],\n '0682': ['DS', '1', 'MaximumNominalEnergy'],\n '0683': ['SQ', '1', 'RadiationFluenceModifierCodeSequence'],\n '0684': ['SQ', '1', 'EnergyUnitCodeSequence'],\n '0685': ['US', '1', 'NumberOfRadiationGenerationModes'],\n '0686': ['SQ', '1', 'PatientSupportDevicesSequence'],\n '0687': ['US', '1', 'NumberOfPatientSupportDevices'],\n '0688': ['FD', '1', 'RTBeamModifierDefinitionDistance'],\n '0689': ['SQ', '1', 'BeamAreaLimitSequence'],\n '068A': ['SQ', '1', 'ReferencedRTPrescriptionSequence'],\n '0700': ['UI', '1', 'TreatmentSessionUID'],\n '0701': ['CS', '1', 'RTRadiationUsage'],\n '0702': ['SQ', '1', 'ReferencedRTRadiationSetSequence'],\n '0703': ['SQ', '1', 'ReferencedRTRadiationRecordSequence'],\n '0704': ['US', '1', 'RTRadiationSetDeliveryNumber'],\n '0705': ['US', '1', 'ClinicalFractionNumber'],\n '0706': ['CS', '1', 'RTTreatmentFractionCompletionStatus'],\n '0707': ['CS', '1', 'RTRadiationSetUsage'],\n '0708': ['CS', '1', 'TreatmentDeliveryContinuationFlag'],\n '0709': ['CS', '1', 'TreatmentRecordContentOrigin'],\n '0714': ['CS', '1', 'RTTreatmentTerminationStatus'],\n '0715': ['SQ', '1', 'RTTreatmentTerminationReasonCodeSequence'],\n '0716': ['SQ', '1', 'MachineSpecificTreatmentTerminationCodeSequence'],\n '0722': ['SQ', '1', 'RTRadiationSalvageRecordControlPointSequence'],\n '0723': ['CS', '1', 'StartingMetersetValueKnownFlag'],\n '0730': ['ST', '1', 'TreatmentTerminationDescription'],\n '0731': ['SQ', '1', 'TreatmentToleranceViolationSequence'],\n '0732': ['CS', '1', 'TreatmentToleranceViolationCategory'],\n '0733': ['SQ', '1', 'TreatmentToleranceViolationAttributeSequence'],\n '0734': ['ST', '1', 'TreatmentToleranceViolationDescription'],\n '0735': ['ST', '1', 'TreatmentToleranceViolationIdentification'],\n '0736': ['DT', '1', 'TreatmentToleranceViolationDateTime'],\n '073A': ['DT', '1', 'RecordedRTControlPointDateTime'],\n '073B': ['US', '1', 'ReferencedRadiationRTControlPointIndex'],\n '073E': ['SQ', '1', 'AlternateValueSequence'],\n '073F': ['SQ', '1', 'ConfirmationSequence'],\n '0740': ['SQ', '1', 'InterlockSequence'],\n '0741': ['DT', '1', 'InterlockDateTime'],\n '0742': ['ST', '1', 'InterlockDescription'],\n '0743': ['SQ', '1', 'InterlockOriginatingDeviceSequence'],\n '0744': ['SQ', '1', 'InterlockCodeSequence'],\n '0745': ['SQ', '1', 'InterlockResolutionCodeSequence'],\n '0746': ['SQ', '1', 'InterlockResolutionUserSequence'],\n '0760': ['DT', '1', 'OverrideDateTime'],\n '0761': ['SQ', '1', 'TreatmentToleranceViolationTypeCodeSequence'],\n '0762': ['SQ', '1', 'TreatmentToleranceViolationCauseCodeSequence'],\n '0772': ['SQ', '1', 'MeasuredMetersetToDoseMappingSequence'],\n '0773': ['US', '1', 'ReferencedExpectedInVivoMeasurementValueIndex'],\n '0774': ['SQ', '1', 'DoseMeasurementDeviceCodeSequence'],\n '0780': ['SQ', '1', 'AdditionalParameterRecordingInstanceSequence'],\n '0782': ['US', '1', ''],\n '0783': ['ST', '1', 'InterlockOriginDescription'],\n '0784': ['SQ', '1', 'RTPatientPositionScopeSequence'],\n '0785': ['UI', '1', 'ReferencedTreatmentPositionGroupUID'],\n '0786': ['US', '1', 'RadiationOrderIndex'],\n '0787': ['SQ', '1', 'OmittedRadiationSequence'],\n '0788': ['SQ', '1', 'ReasonForOmissionCodeSequence'],\n '0789': ['SQ', '1', 'RTDeliveryStartPatientPositionSequence'],\n '078A': ['SQ', '1', 'RTTreatmentPreparationPatientPositionSequence'],\n '078B': ['SQ', '1', 'ReferencedRTTreatmentPreparationSequence'],\n '078C': ['SQ', '1', 'ReferencedPatientSetupPhotoSequence'],\n '078D': ['SQ', '1', 'PatientTreatmentPreparationMethodCodeSequence'],\n '078E': ['LT', '1', 'PatientTreatmentPreparationProcedureParameterDescription'],\n '078F': ['SQ', '1', 'PatientTreatmentPreparationDeviceSequence'],\n '0790': ['SQ', '1', 'PatientTreatmentPreparationProcedureSequence'],\n '0791': ['SQ', '1', 'PatientTreatmentPreparationProcedureCodeSequence'],\n '0792': ['LT', '1', 'PatientTreatmentPreparationMethodDescription'],\n '0793': ['SQ', '1', 'PatientTreatmentPreparationProcedureParameterSequence'],\n '0794': ['LT', '1', 'PatientSetupPhotoDescription'],\n '0795': ['US', '1', 'PatientTreatmentPreparationProcedureIndex'],\n '0796': ['US', '1', 'ReferencedPatientSetupProcedureIndex'],\n '0797': ['SQ', '1', 'RTRadiationTaskSequence'],\n '0798': ['SQ', '1', 'RTPatientPositionDisplacementSequence'],\n '0799': ['SQ', '1', 'RTPatientPositionSequence'],\n '079A': ['LO', '1', 'DisplacementReferenceLabel'],\n '079B': ['FD', '16', 'DisplacementMatrix'],\n '079C': ['SQ', '1', 'PatientSupportDisplacementSequence'],\n '079D': ['SQ', '1', 'DisplacementReferenceLocationCodeSequence'],\n '079E': ['CS', '1', 'RTRadiationSetDeliveryUsage']\n },\n '300C': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['SQ', '1', 'ReferencedRTPlanSequence'],\n '0004': ['SQ', '1', 'ReferencedBeamSequence'],\n '0006': ['IS', '1', 'ReferencedBeamNumber'],\n '0007': ['IS', '1', 'ReferencedReferenceImageNumber'],\n '0008': ['DS', '1', 'StartCumulativeMetersetWeight'],\n '0009': ['DS', '1', 'EndCumulativeMetersetWeight'],\n '000A': ['SQ', '1', 'ReferencedBrachyApplicationSetupSequence'],\n '000C': ['IS', '1', 'ReferencedBrachyApplicationSetupNumber'],\n '000E': ['IS', '1', 'ReferencedSourceNumber'],\n '0020': ['SQ', '1', 'ReferencedFractionGroupSequence'],\n '0022': ['IS', '1', 'ReferencedFractionGroupNumber'],\n '0040': ['SQ', '1', 'ReferencedVerificationImageSequence'],\n '0042': ['SQ', '1', 'ReferencedReferenceImageSequence'],\n '0050': ['SQ', '1', 'ReferencedDoseReferenceSequence'],\n '0051': ['IS', '1', 'ReferencedDoseReferenceNumber'],\n '0055': ['SQ', '1', 'BrachyReferencedDoseReferenceSequence'],\n '0060': ['SQ', '1', 'ReferencedStructureSetSequence'],\n '006A': ['IS', '1', 'ReferencedPatientSetupNumber'],\n '0080': ['SQ', '1', 'ReferencedDoseSequence'],\n '00A0': ['IS', '1', 'ReferencedToleranceTableNumber'],\n '00B0': ['SQ', '1', 'ReferencedBolusSequence'],\n '00C0': ['IS', '1', 'ReferencedWedgeNumber'],\n '00D0': ['IS', '1', 'ReferencedCompensatorNumber'],\n '00E0': ['IS', '1', 'ReferencedBlockNumber'],\n '00F0': ['IS', '1', 'ReferencedControlPointIndex'],\n '00F2': ['SQ', '1', 'ReferencedControlPointSequence'],\n '00F4': ['IS', '1', 'ReferencedStartControlPointIndex'],\n '00F6': ['IS', '1', 'ReferencedStopControlPointIndex'],\n '0100': ['IS', '1', 'ReferencedRangeShifterNumber'],\n '0102': ['IS', '1', 'ReferencedLateralSpreadingDeviceNumber'],\n '0104': ['IS', '1', 'ReferencedRangeModulatorNumber'],\n '0111': ['SQ', '1', 'OmittedBeamTaskSequence'],\n '0112': ['CS', '1', 'ReasonForOmission'],\n '0113': ['LO', '1', 'ReasonForOmissionDescription'],\n '0114': ['SQ', '1', 'PrescriptionOverviewSequence'],\n '0115': ['FL', '1', 'TotalPrescriptionDose'],\n '0116': ['SQ', '1', 'PlanOverviewSequence'],\n '0117': ['US', '1', 'PlanOverviewIndex'],\n '0118': ['US', '1', 'ReferencedPlanOverviewIndex'],\n '0119': ['US', '1', 'NumberOfFractionsIncluded'],\n '0120': ['SQ', '1', 'DoseCalibrationConditionsSequence'],\n '0121': ['FD', '1', 'AbsorbedDoseToMetersetRatio'],\n '0122': ['FD', '2', 'DelineatedRadiationFieldSize'],\n '0123': ['CS', '1', 'DoseCalibrationConditionsVerifiedFlag'],\n '0124': ['FD', '1', 'CalibrationReferencePointDepth'],\n '0125': ['SQ', '1', 'GatingBeamHoldTransitionSequence'],\n '0126': ['CS', '1', 'BeamHoldTransition'],\n '0127': ['DT', '1', 'BeamHoldTransitionDateTime'],\n '0128': ['SQ', '1', 'BeamHoldOriginatingDeviceSequence']\n },\n '300E': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0002': ['CS', '1', 'ApprovalStatus'],\n '0004': ['DA', '1', 'ReviewDate'],\n '0005': ['TM', '1', 'ReviewTime'],\n '0008': ['PN', '1', 'ReviewerName']\n },\n '3010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'RadiobiologicalDoseEffectSequence'],\n '0002': ['CS', '1', 'RadiobiologicalDoseEffectFlag'],\n '0003': ['SQ', '1', 'EffectiveDoseCalculationMethodCategoryCodeSequence'],\n '0004': ['SQ', '1', 'EffectiveDoseCalculationMethodCodeSequence'],\n '0005': ['LO', '1', 'EffectiveDoseCalculationMethodDescription'],\n '0006': ['UI', '1', 'ConceptualVolumeUID'],\n '0007': ['SQ', '1', 'OriginatingSOPInstanceReferenceSequence'],\n '0008': ['SQ', '1', 'ConceptualVolumeConstituentSequence'],\n '0009': ['SQ', '1', 'EquivalentConceptualVolumeInstanceReferenceSequence'],\n '000A': ['SQ', '1', 'EquivalentConceptualVolumesSequence'],\n '000B': ['UI', '1', 'ReferencedConceptualVolumeUID'],\n '000C': ['UT', '1', 'ConceptualVolumeCombinationExpression'],\n '000D': ['US', '1', 'ConceptualVolumeConstituentIndex'],\n '000E': ['CS', '1', 'ConceptualVolumeCombinationFlag'],\n '000F': ['ST', '1', 'ConceptualVolumeCombinationDescription'],\n '0010': ['CS', '1', 'ConceptualVolumeSegmentationDefinedFlag'],\n '0011': ['SQ', '1', 'ConceptualVolumeSegmentationReferenceSequence'],\n '0012': ['SQ', '1', 'ConceptualVolumeConstituentSegmentationReferenceSequence'],\n '0013': ['UI', '1', 'ConstituentConceptualVolumeUID'],\n '0014': ['SQ', '1', 'DerivationConceptualVolumeSequence'],\n '0015': ['UI', '1', 'SourceConceptualVolumeUID'],\n '0016': ['SQ', '1', 'ConceptualVolumeDerivationAlgorithmSequence'],\n '0017': ['ST', '1', 'ConceptualVolumeDescription'],\n '0018': ['SQ', '1', 'SourceConceptualVolumeSequence'],\n '0019': ['SQ', '1', 'AuthorIdentificationSequence'],\n '001A': ['LO', '1', 'ManufacturerModelVersion'],\n '001B': ['UC', '1', 'DeviceAlternateIdentifier'],\n '001C': ['CS', '1', 'DeviceAlternateIdentifierType'],\n '001D': ['LT', '1', 'DeviceAlternateIdentifierFormat'],\n '001E': ['LO', '1', 'SegmentationCreationTemplateLabel'],\n '001F': ['UI', '1', 'SegmentationTemplateUID'],\n '0020': ['US', '1', 'ReferencedSegmentReferenceIndex'],\n '0021': ['SQ', '1', 'SegmentReferenceSequence'],\n '0022': ['US', '1', 'SegmentReferenceIndex'],\n '0023': ['SQ', '1', 'DirectSegmentReferenceSequence'],\n '0024': ['SQ', '1', 'CombinationSegmentReferenceSequence'],\n '0025': ['SQ', '1', 'ConceptualVolumeSequence'],\n '0026': ['SQ', '1', 'SegmentedRTAccessoryDeviceSequence'],\n '0027': ['SQ', '1', 'SegmentCharacteristicsSequence'],\n '0028': ['SQ', '1', 'RelatedSegmentCharacteristicsSequence'],\n '0029': ['US', '1', 'SegmentCharacteristicsPrecedence'],\n '002A': ['SQ', '1', 'RTSegmentAnnotationSequence'],\n '002B': ['SQ', '1', 'SegmentAnnotationCategoryCodeSequence'],\n '002C': ['SQ', '1', 'SegmentAnnotationTypeCodeSequence'],\n '002D': ['LO', '1', 'DeviceLabel'],\n '002E': ['SQ', '1', 'DeviceTypeCodeSequence'],\n '002F': ['SQ', '1', 'SegmentAnnotationTypeModifierCodeSequence'],\n '0030': ['SQ', '1', 'PatientEquipmentRelationshipCodeSequence'],\n '0031': ['UI', '1', 'ReferencedFiducialsUID'],\n '0032': ['SQ', '1', 'PatientTreatmentOrientationSequence'],\n '0033': ['SH', '1', 'UserContentLabel'],\n '0034': ['LO', '1', 'UserContentLongLabel'],\n '0035': ['SH', '1', 'EntityLabel'],\n '0036': ['LO', '1', 'EntityName'],\n '0037': ['ST', '1', 'EntityDescription'],\n '0038': ['LO', '1', 'EntityLongLabel'],\n '0039': ['US', '1', 'DeviceIndex'],\n '003A': ['US', '1', 'RTTreatmentPhaseIndex'],\n '003B': ['UI', '1', 'RTTreatmentPhaseUID'],\n '003C': ['US', '1', 'RTPrescriptionIndex'],\n '003D': ['US', '1', 'RTSegmentAnnotationIndex'],\n '003E': ['US', '1', 'BasisRTTreatmentPhaseIndex'],\n '003F': ['US', '1', 'RelatedRTTreatmentPhaseIndex'],\n '0040': ['US', '1', 'ReferencedRTTreatmentPhaseIndex'],\n '0041': ['US', '1', 'ReferencedRTPrescriptionIndex'],\n '0042': ['US', '1', 'ReferencedParentRTPrescriptionIndex'],\n '0043': ['ST', '1', 'ManufacturerDeviceIdentifier'],\n '0044': ['SQ', '1', 'InstanceLevelReferencedPerformedProcedureStepSequence'],\n '0045': ['CS', '1', 'RTTreatmentPhaseIntentPresenceFlag'],\n '0046': ['CS', '1', 'RadiotherapyTreatmentType'],\n '0047': ['CS', '1-n', 'TeletherapyRadiationType'],\n '0048': ['CS', '1-n', 'BrachytherapySourceType'],\n '0049': ['SQ', '1', 'ReferencedRTTreatmentPhaseSequence'],\n '004A': ['SQ', '1', 'ReferencedDirectSegmentInstanceSequence'],\n '004B': ['SQ', '1', 'IntendedRTTreatmentPhaseSequence'],\n '004C': ['DA', '1', 'IntendedPhaseStartDate'],\n '004D': ['DA', '1', 'IntendedPhaseEndDate'],\n '004E': ['SQ', '1', 'RTTreatmentPhaseIntervalSequence'],\n '004F': ['CS', '1', 'TemporalRelationshipIntervalAnchor'],\n '0050': ['FD', '1', 'MinimumNumberOfIntervalDays'],\n '0051': ['FD', '1', 'MaximumNumberOfIntervalDays'],\n '0052': ['UI', '1-n', 'PertinentSOPClassesInStudy'],\n '0053': ['UI', '1-n', 'PertinentSOPClassesInSeries'],\n '0054': ['LO', '1', 'RTPrescriptionLabel'],\n '0055': ['SQ', '1', 'RTPhysicianIntentPredecessorSequence'],\n '0056': ['LO', '1', 'RTTreatmentApproachLabel'],\n '0057': ['SQ', '1', 'RTPhysicianIntentSequence'],\n '0058': ['US', '1', 'RTPhysicianIntentIndex'],\n '0059': ['CS', '1', 'RTTreatmentIntentType'],\n '005A': ['UT', '1', 'RTPhysicianIntentNarrative'],\n '005B': ['SQ', '1', 'RTProtocolCodeSequence'],\n '005C': ['ST', '1', 'ReasonForSuperseding'],\n '005D': ['SQ', '1', 'RTDiagnosisCodeSequence'],\n '005E': ['US', '1', 'ReferencedRTPhysicianIntentIndex'],\n '005F': ['SQ', '1', 'RTPhysicianIntentInputInstanceSequence'],\n '0060': ['SQ', '1', 'RTAnatomicPrescriptionSequence'],\n '0061': ['UT', '1', 'PriorTreatmentDoseDescription'],\n '0062': ['SQ', '1', 'PriorTreatmentReferenceSequence'],\n '0063': ['CS', '1', 'DosimetricObjectiveEvaluationScope'],\n '0064': ['SQ', '1', 'TherapeuticRoleCategoryCodeSequence'],\n '0065': ['SQ', '1', 'TherapeuticRoleTypeCodeSequence'],\n '0066': ['US', '1', 'ConceptualVolumeOptimizationPrecedence'],\n '0067': ['SQ', '1', 'ConceptualVolumeCategoryCodeSequence'],\n '0068': ['CS', '1', 'ConceptualVolumeBlockingConstraint'],\n '0069': ['SQ', '1', 'ConceptualVolumeTypeCodeSequence'],\n '006A': ['SQ', '1', 'ConceptualVolumeTypeModifierCodeSequence'],\n '006B': ['SQ', '1', 'RTPrescriptionSequence'],\n '006C': ['SQ', '1', 'DosimetricObjectiveSequence'],\n '006D': ['SQ', '1', 'DosimetricObjectiveTypeCodeSequence'],\n '006E': ['UI', '1', 'DosimetricObjectiveUID'],\n '006F': ['UI', '1', 'ReferencedDosimetricObjectiveUID'],\n '0070': ['SQ', '1', 'DosimetricObjectiveParameterSequence'],\n '0071': ['SQ', '1', 'ReferencedDosimetricObjectivesSequence'],\n '0073': ['CS', '1', 'AbsoluteDosimetricObjectiveFlag'],\n '0074': ['FD', '1', 'DosimetricObjectiveWeight'],\n '0075': ['CS', '1', 'DosimetricObjectivePurpose'],\n '0076': ['SQ', '1', 'PlanningInputInformationSequence'],\n '0077': ['LO', '1', 'TreatmentSite'],\n '0078': ['SQ', '1', 'TreatmentSiteCodeSequence'],\n '0079': ['SQ', '1', 'FractionPatternSequence'],\n '007A': ['UT', '1', 'TreatmentTechniqueNotes'],\n '007B': ['UT', '1', 'PrescriptionNotes'],\n '007C': ['IS', '1', 'NumberOfIntervalFractions'],\n '007D': ['US', '1', 'NumberOfFractions'],\n '007E': ['US', '1', 'IntendedDeliveryDuration'],\n '007F': ['UT', '1', 'FractionationNotes'],\n '0080': ['SQ', '1', 'RTTreatmentTechniqueCodeSequence'],\n '0081': ['SQ', '1', 'PrescriptionNotesSequence'],\n '0082': ['SQ', '1', 'FractionBasedRelationshipSequence'],\n '0083': ['CS', '1', 'FractionBasedRelationshipIntervalAnchor'],\n '0084': ['FD', '1', 'MinimumHoursBetweenFractions'],\n '0085': ['TM', '1-n', 'IntendedFractionStartTime'],\n '0086': ['LT', '1', 'IntendedStartDayOfWeek'],\n '0087': ['SQ', '1', 'WeekdayFractionPatternSequence'],\n '0088': ['SQ', '1', 'DeliveryTimeStructureCodeSequence'],\n '0089': ['SQ', '1', 'TreatmentSiteModifierCodeSequence'],\n '0090': ['CS', '1', 'RoboticBaseLocationIndicator'],\n '0091': ['SQ', '1', 'RoboticPathNodeSetCodeSequence'],\n '0092': ['UL', '1', 'RoboticNodeIdentifier'],\n '0093': ['FD', '3', 'RTTreatmentSourceCoordinates'],\n '0094': ['FD', '1', 'RadiationSourceCoordinateSystemYawAngle'],\n '0095': ['FD', '1', 'RadiationSourceCoordinateSystemRollAngle'],\n '0096': ['FD', '1', 'RadiationSourceCoordinateSystemPitchAngle'],\n '0097': ['SQ', '1', 'RoboticPathControlPointSequence'],\n '0098': ['SQ', '1', 'TomotherapeuticControlPointSequence'],\n '0099': ['FD', '1-n', 'TomotherapeuticLeafOpenDurations'],\n '009A': ['FD', '1-n', 'TomotherapeuticLeafInitialClosedDurations']\n },\n '4000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['LT', '1', 'Arbitrary'],\n '4000': ['LT', '1', 'TextComments']\n },\n '4008': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0040': ['SH', '1', 'ResultsID'],\n '0042': ['LO', '1', 'ResultsIDIssuer'],\n '0050': ['SQ', '1', 'ReferencedInterpretationSequence'],\n '00FF': ['CS', '1', 'ReportProductionStatusTrial'],\n '0100': ['DA', '1', 'InterpretationRecordedDate'],\n '0101': ['TM', '1', 'InterpretationRecordedTime'],\n '0102': ['PN', '1', 'InterpretationRecorder'],\n '0103': ['LO', '1', 'ReferenceToRecordedSound'],\n '0108': ['DA', '1', 'InterpretationTranscriptionDate'],\n '0109': ['TM', '1', 'InterpretationTranscriptionTime'],\n '010A': ['PN', '1', 'InterpretationTranscriber'],\n '010B': ['ST', '1', 'InterpretationText'],\n '010C': ['PN', '1', 'InterpretationAuthor'],\n '0111': ['SQ', '1', 'InterpretationApproverSequence'],\n '0112': ['DA', '1', 'InterpretationApprovalDate'],\n '0113': ['TM', '1', 'InterpretationApprovalTime'],\n '0114': ['PN', '1', 'PhysicianApprovingInterpretation'],\n '0115': ['LT', '1', 'InterpretationDiagnosisDescription'],\n '0117': ['SQ', '1', 'InterpretationDiagnosisCodeSequence'],\n '0118': ['SQ', '1', 'ResultsDistributionListSequence'],\n '0119': ['PN', '1', 'DistributionName'],\n '011A': ['LO', '1', 'DistributionAddress'],\n '0200': ['SH', '1', 'InterpretationID'],\n '0202': ['LO', '1', 'InterpretationIDIssuer'],\n '0210': ['CS', '1', 'InterpretationTypeID'],\n '0212': ['CS', '1', 'InterpretationStatusID'],\n '0300': ['ST', '1', 'Impressions'],\n '4000': ['ST', '1', 'ResultsComments']\n },\n '4010': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['CS', '1', 'LowEnergyDetectors'],\n '0002': ['CS', '1', 'HighEnergyDetectors'],\n '0004': ['SQ', '1', 'DetectorGeometrySequence'],\n '1001': ['SQ', '1', 'ThreatROIVoxelSequence'],\n '1004': ['FL', '3', 'ThreatROIBase'],\n '1005': ['FL', '3', 'ThreatROIExtents'],\n '1006': ['OB', '1', 'ThreatROIBitmap'],\n '1007': ['SH', '1', 'RouteSegmentID'],\n '1008': ['CS', '1', 'GantryType'],\n '1009': ['CS', '1', 'OOIOwnerType'],\n '100A': ['SQ', '1', 'RouteSegmentSequence'],\n '1010': ['US', '1', 'PotentialThreatObjectID'],\n '1011': ['SQ', '1', 'ThreatSequence'],\n '1012': ['CS', '1', 'ThreatCategory'],\n '1013': ['LT', '1', 'ThreatCategoryDescription'],\n '1014': ['CS', '1', 'ATDAbilityAssessment'],\n '1015': ['CS', '1', 'ATDAssessmentFlag'],\n '1016': ['FL', '1', 'ATDAssessmentProbability'],\n '1017': ['FL', '1', 'Mass'],\n '1018': ['FL', '1', 'Density'],\n '1019': ['FL', '1', 'ZEffective'],\n '101A': ['SH', '1', 'BoardingPassID'],\n '101B': ['FL', '3', 'CenterOfMass'],\n '101C': ['FL', '3', 'CenterOfPTO'],\n '101D': ['FL', '6-n', 'BoundingPolygon'],\n '101E': ['SH', '1', 'RouteSegmentStartLocationID'],\n '101F': ['SH', '1', 'RouteSegmentEndLocationID'],\n '1020': ['CS', '1', 'RouteSegmentLocationIDType'],\n '1021': ['CS', '1-n', 'AbortReason'],\n '1023': ['FL', '1', 'VolumeOfPTO'],\n '1024': ['CS', '1', 'AbortFlag'],\n '1025': ['DT', '1', 'RouteSegmentStartTime'],\n '1026': ['DT', '1', 'RouteSegmentEndTime'],\n '1027': ['CS', '1', 'TDRType'],\n '1028': ['CS', '1', 'InternationalRouteSegment'],\n '1029': ['LO', '1-n', 'ThreatDetectionAlgorithmAndVersion'],\n '102A': ['SH', '1', 'AssignedLocation'],\n '102B': ['DT', '1', 'AlarmDecisionTime'],\n '1031': ['CS', '1', 'AlarmDecision'],\n '1033': ['US', '1', 'NumberOfTotalObjects'],\n '1034': ['US', '1', 'NumberOfAlarmObjects'],\n '1037': ['SQ', '1', 'PTORepresentationSequence'],\n '1038': ['SQ', '1', 'ATDAssessmentSequence'],\n '1039': ['CS', '1', 'TIPType'],\n '103A': ['CS', '1', 'DICOSVersion'],\n '1041': ['DT', '1', 'OOIOwnerCreationTime'],\n '1042': ['CS', '1', 'OOIType'],\n '1043': ['FL', '3', 'OOISize'],\n '1044': ['CS', '1', 'AcquisitionStatus'],\n '1045': ['SQ', '1', 'BasisMaterialsCodeSequence'],\n '1046': ['CS', '1', 'PhantomType'],\n '1047': ['SQ', '1', 'OOIOwnerSequence'],\n '1048': ['CS', '1', 'ScanType'],\n '1051': ['LO', '1', 'ItineraryID'],\n '1052': ['SH', '1', 'ItineraryIDType'],\n '1053': ['LO', '1', 'ItineraryIDAssigningAuthority'],\n '1054': ['SH', '1', 'RouteID'],\n '1055': ['SH', '1', 'RouteIDAssigningAuthority'],\n '1056': ['CS', '1', 'InboundArrivalType'],\n '1058': ['SH', '1', 'CarrierID'],\n '1059': ['CS', '1', 'CarrierIDAssigningAuthority'],\n '1060': ['FL', '3', 'SourceOrientation'],\n '1061': ['FL', '3', 'SourcePosition'],\n '1062': ['FL', '1', 'BeltHeight'],\n '1064': ['SQ', '1', 'AlgorithmRoutingCodeSequence'],\n '1067': ['CS', '1', 'TransportClassification'],\n '1068': ['LT', '1', 'OOITypeDescriptor'],\n '1069': ['FL', '1', 'TotalProcessingTime'],\n '106C': ['OB', '1', 'DetectorCalibrationData'],\n '106D': ['CS', '1', 'AdditionalScreeningPerformed'],\n '106E': ['CS', '1', 'AdditionalInspectionSelectionCriteria'],\n '106F': ['SQ', '1', 'AdditionalInspectionMethodSequence'],\n '1070': ['CS', '1', 'AITDeviceType'],\n '1071': ['SQ', '1', 'QRMeasurementsSequence'],\n '1072': ['SQ', '1', 'TargetMaterialSequence'],\n '1073': ['FD', '1', 'SNRThreshold'],\n '1075': ['DS', '1', 'ImageScaleRepresentation'],\n '1076': ['SQ', '1', 'ReferencedPTOSequence'],\n '1077': ['SQ', '1', 'ReferencedTDRInstanceSequence'],\n '1078': ['ST', '1', 'PTOLocationDescription'],\n '1079': ['SQ', '1', 'AnomalyLocatorIndicatorSequence'],\n '107A': ['FL', '3', 'AnomalyLocatorIndicator'],\n '107B': ['SQ', '1', 'PTORegionSequence'],\n '107C': ['CS', '1', 'InspectionSelectionCriteria'],\n '107D': ['SQ', '1', 'SecondaryInspectionMethodSequence'],\n '107E': ['DS', '6', 'PRCSToRCSOrientation']\n },\n '4FFE': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['SQ', '1', 'MACParametersSequence']\n },\n '5000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0005': ['US', '1', 'CurveDimensions'],\n '0010': ['US', '1', 'NumberOfPoints'],\n '0020': ['CS', '1', 'TypeOfData'],\n '0022': ['LO', '1', 'CurveDescription'],\n '0030': ['SH', '1-n', 'AxisUnits'],\n '0040': ['SH', '1-n', 'AxisLabels'],\n '0103': ['US', '1', 'DataValueRepresentation'],\n '0104': ['US', '1-n', 'MinimumCoordinateValue'],\n '0105': ['US', '1-n', 'MaximumCoordinateValue'],\n '0106': ['SH', '1-n', 'CurveRange'],\n '0110': ['US', '1-n', 'CurveDataDescriptor'],\n '0112': ['US', '1-n', 'CoordinateStartValue'],\n '0114': ['US', '1-n', 'CoordinateStepValue'],\n '1001': ['CS', '1', 'CurveActivationLayer'],\n '2000': ['US', '1', 'AudioType'],\n '2002': ['US', '1', 'AudioSampleFormat'],\n '2004': ['US', '1', 'NumberOfChannels'],\n '2006': ['UL', '1', 'NumberOfSamples'],\n '2008': ['UL', '1', 'SampleRate'],\n '200A': ['UL', '1', 'TotalTime'],\n '200C': ['ox', '1', 'AudioSampleData'],\n '200E': ['LT', '1', 'AudioComments'],\n '2500': ['LO', '1', 'CurveLabel'],\n '2600': ['SQ', '1', 'CurveReferencedOverlaySequence'],\n '2610': ['US', '1', 'CurveReferencedOverlayGroup'],\n '3000': ['ox', '1', 'CurveData']\n },\n '5200': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '9229': ['SQ', '1', 'SharedFunctionalGroupsSequence'],\n '9230': ['SQ', '1', 'PerFrameFunctionalGroupsSequence']\n },\n '5400': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0100': ['SQ', '1', 'WaveformSequence'],\n '0110': ['ox', '1', 'ChannelMinimumValue'],\n '0112': ['ox', '1', 'ChannelMaximumValue'],\n '1004': ['US', '1', 'WaveformBitsAllocated'],\n '1006': ['CS', '1', 'WaveformSampleInterpretation'],\n '100A': ['ox', '1', 'WaveformPaddingValue'],\n '1010': ['ox', '1', 'WaveformData']\n },\n '5600': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['OF', '1', 'FirstOrderPhaseCorrectionAngle'],\n '0020': ['OF', '1', 'SpectroscopyData']\n },\n '6000': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['US', '1', 'OverlayRows'],\n '0011': ['US', '1', 'OverlayColumns'],\n '0012': ['US', '1', 'OverlayPlanes'],\n '0015': ['IS', '1', 'NumberOfFramesInOverlay'],\n '0022': ['LO', '1', 'OverlayDescription'],\n '0040': ['CS', '1', 'OverlayType'],\n '0045': ['LO', '1', 'OverlaySubtype'],\n '0050': ['SS', '2', 'OverlayOrigin'],\n '0051': ['US', '1', 'ImageFrameOrigin'],\n '0052': ['US', '1', 'OverlayPlaneOrigin'],\n '0060': ['CS', '1', 'OverlayCompressionCode'],\n '0061': ['SH', '1', 'OverlayCompressionOriginator'],\n '0062': ['SH', '1', 'OverlayCompressionLabel'],\n '0063': ['CS', '1', 'OverlayCompressionDescription'],\n '0066': ['AT', '1-n', 'OverlayCompressionStepPointers'],\n '0068': ['US', '1', 'OverlayRepeatInterval'],\n '0069': ['US', '1', 'OverlayBitsGrouped'],\n '0100': ['US', '1', 'OverlayBitsAllocated'],\n '0102': ['US', '1', 'OverlayBitPosition'],\n '0110': ['CS', '1', 'OverlayFormat'],\n '0200': ['US', '1', 'OverlayLocation'],\n '0800': ['CS', '1-n', 'OverlayCodeLabel'],\n '0802': ['US', '1', 'OverlayNumberOfTables'],\n '0803': ['AT', '1-n', 'OverlayCodeTableLocation'],\n '0804': ['US', '1', 'OverlayBitsForCodeWord'],\n '1001': ['CS', '1', 'OverlayActivationLayer'],\n '1100': ['US', '1', 'OverlayDescriptorGray'],\n '1101': ['US', '1', 'OverlayDescriptorRed'],\n '1102': ['US', '1', 'OverlayDescriptorGreen'],\n '1103': ['US', '1', 'OverlayDescriptorBlue'],\n '1200': ['US', '1-n', 'OverlaysGray'],\n '1201': ['US', '1-n', 'OverlaysRed'],\n '1202': ['US', '1-n', 'OverlaysGreen'],\n '1203': ['US', '1-n', 'OverlaysBlue'],\n '1301': ['IS', '1', 'ROIArea'],\n '1302': ['DS', '1', 'ROIMean'],\n '1303': ['DS', '1', 'ROIStandardDeviation'],\n '1500': ['LO', '1', 'OverlayLabel'],\n '3000': ['ox', '1', 'OverlayData'],\n '4000': ['LT', '1', 'OverlayComments']\n },\n '7F00': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0010': ['ox', '1', 'VariablePixelData'],\n '0011': ['US', '1', 'VariableNextDataGroup'],\n '0020': ['OW', '1', 'VariableCoefficientsSDVN'],\n '0030': ['OW', '1', 'VariableCoefficientsSDHN'],\n '0040': ['OW', '1', 'VariableCoefficientsSDDN']\n },\n '7FE0': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n '0001': ['OV', '1', 'ExtendedOffsetTable'],\n '0002': ['OV', '1', 'ExtendedOffsetTableLengths'],\n '0008': ['OF', '1', 'FloatPixelData'],\n '0009': ['OD', '1', 'DoubleFloatPixelData'],\n '0010': ['ox', '1', 'PixelData'],\n '0020': ['OW', '1', 'CoefficientsSDVN'],\n '0030': ['OW', '1', 'CoefficientsSDHN'],\n '0040': ['OW', '1', 'CoefficientsSDDN']\n },\n 'FFFA': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n 'FFFA': ['SQ', '1', 'DigitalSignaturesSequence']\n },\n 'FFFC': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n 'FFFC': ['OB', '1', 'DataSetTrailingPadding']\n },\n 'FFFE': {\n '0000': ['UL', '1', 'GenericGroupLength'],\n 'E000': ['NONE', '1', 'Item'],\n 'E00D': ['NONE', '1', 'ItemDelimitationItem'],\n 'E0DD': ['NONE', '1', 'SequenceDelimitationItem']\n }\n}; // Dictionary\n\n/**\n * Add tags to the dictionary.\n *\n * @param {string} group The group key.\n * @param {Object} tags The tags to add as an\n * object indexed by element key with values as:\n * [VR, multiplicity, TagName] (all strings).\n */\nexport function addTagsToDictionary(group, tags) {\n // TODO: add checks!\n dictionary[group] = tags;\n}\n\n/**\n * Tag groups: key to name pairs.\n * Copied from gdcm-2.6.1\\Source\\DataDictionary\\GroupName.dic\n * -> removed duplicates (commented).\n *\n * @type {Object}\n */\nexport const tagGroups = {\n '0000': 'Command',\n '0002': 'Meta Element',\n '0004': 'File Set',\n //'0004': 'Directory',\n '0008': 'Identifying',\n '0009': 'SPI Identifying',\n '0010': 'Patient',\n '0012': 'Clinical Trial',\n '0018': 'Acquisition',\n '0019': 'SPI Acquisition',\n '0020': 'Image',\n '0021': 'SPI Image',\n '0022': 'Ophtalmology',\n '0028': 'Image Presentation',\n '0032': 'Study',\n '0038': 'Visit',\n '003A': 'Waveform',\n '0040': 'Procedure',\n //'0040': ''Modality Worklist',\n '0042': 'Encapsulated Document',\n '0050': 'Device Informations',\n //'0050': 'XRay Angio Device',\n '0054': 'Nuclear Medicine',\n '0060': 'Histogram',\n '0070': 'Presentation State',\n '0072': 'Hanging Protocol',\n '0088': 'Storage',\n //'0088': 'Medicine',\n '0100': 'Authorization',\n '0400': 'Digital Signature',\n '1000': 'Code Table',\n '1010': 'Zonal Map',\n '2000': 'Film Session',\n '2010': 'Film Box',\n '2020': 'Image Box',\n '2030': 'Annotation',\n '2040': 'Overlay Box',\n '2050': 'Presentation LUT',\n '2100': 'Print Job',\n '2110': 'Printer',\n '2120': 'Queue',\n '2130': 'Print Content',\n '2200': 'Media Creation',\n '3002': 'RT Image',\n '3004': 'RT Dose',\n '3006': 'RT StructureSet',\n '3008': 'RT Treatment',\n '300A': 'RT Plan',\n '300C': 'RT Relationship',\n '300E': 'RT Approval',\n '4000': 'Text',\n '4008': 'Results',\n '4FFE': 'MAC Parameters',\n '5000': 'Curve',\n '5002': 'Curve',\n '5004': 'Curve',\n '5006': 'Curve',\n '5008': 'Curve',\n '500A': 'Curve',\n '500C': 'Curve',\n '500E': 'Curve',\n '5400': 'Waveform Data',\n '6000': 'Overlays',\n '6002': 'Overlays',\n '6004': 'Overlays',\n '6008': 'Overlays',\n '600A': 'Overlays',\n '600C': 'Overlays',\n '600E': 'Overlays',\n 'FFFC': 'Generic',\n '7FE0': 'Pixel Data',\n 'FFFF': 'Unknown'\n};\n\n/**\n * List of Value Representation (VR) with 32bit Value Length (VL).\n *\n * Added locally used 'ox'.\n * See {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_7.html#table_7.1-1}.\n *\n * @type {Object}\n */\nconst vr32bitVL = {\n OB: true,\n OD: true,\n OF: true,\n OL: true,\n OV: true,\n OW: true,\n SQ: true,\n SV: true,\n UC: true,\n UN: true,\n UR: true,\n UT: true,\n UV: true,\n ox: true\n};\n\n/**\n * Does the input Value Representation (VR) have a 32bit Value Length (VL).\n *\n * @param {string} vr The data Value Representation (VR).\n * @returns {boolean} True if this VR has a 32-bit VL.\n */\nexport function is32bitVLVR(vr) {\n return typeof vr32bitVL[vr] !== 'undefined';\n}\n\n/**\n * List of string VR with extended or replaced default character repertoire defined in\n * Specific Character Set (0008,0005).\n *\n * See {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_6.html#sect_6.1.2.2}.\n *\n * @type {Object}\n */\nconst vrCharSetString = {\n SH: true,\n LO: true,\n UC: true,\n ST: true,\n LT: true,\n UT: true,\n PN: true\n};\n\n/**\n * Does the input Value Representation (VR) have an special character repertoire.\n *\n * @param {string} vr The data VR.\n * @returns {boolean} True if this VR has a special char set.\n */\nexport function isCharSetStringVR(vr) {\n return typeof vrCharSetString[vr] !== 'undefined';\n}\n\n/**\n * VR equivalent javascript types.\n *\n * See {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_6.2.html#table_6.2-1}.\n *\n * @type {Object}\n */\nexport const vrTypes = {\n AE: 'string',\n AS: 'string',\n AT: undefined,\n CS: 'string',\n DA: 'string',\n DS: 'string',\n DT: 'string',\n FL: 'Float32',\n FD: 'Float64',\n IS: 'string',\n LO: 'string',\n LT: 'string',\n OB: 'Uint8',\n OD: 'Uint64',\n OF: 'Uint32',\n OL: 'Uint32',\n OV: 'Uint64',\n OW: 'Uint16',\n PN: 'string',\n SH: 'string',\n SL: 'Int32',\n SQ: undefined,\n SS: 'Int16',\n ST: 'string',\n SV: 'Int64',\n TM: 'string',\n UC: 'string',\n UI: 'string',\n UL: 'Uint32',\n UN: 'Uint8',\n UR: 'string',\n US: 'Uint16',\n UT: 'string',\n UV: 'Uint64'\n};\n\n/**\n * Transfer syntaxes.\n *\n * See {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part06/chapter_A.html#table_A-1}.\n *\n * @type {Object}\n */\nexport const transferSyntaxes = {\n '1.2.840.10008.1.2': 'Implicit VR Little Endian',\n '1.2.840.10008.1.2.1': 'Explicit VR Little Endian',\n '1.2.840.10008.1.2.1.98': 'Encapsulated Uncompressed Explicit VR Little Endian',\n '1.2.840.10008.1.2.1.99': 'Deflated Explicit VR Little Endian',\n '1.2.840.10008.1.2.2': 'Explicit VR Big Endian (Retired)',\n '1.2.840.10008.1.2.4.50': 'JPEG Baseline (Process 1)',\n '1.2.840.10008.1.2.4.51': 'JPEG Extended (Process 2 & 4)',\n '1.2.840.10008.1.2.4.52': 'JPEG Extended (Process 3 & 5) (Retired)',\n '1.2.840.10008.1.2.4.53': 'JPEG Spectral Selection, Non-Hierarchical (Process 6 & 8) (Retired)',\n '1.2.840.10008.1.2.4.54': 'JPEG Spectral Selection, Non-Hierarchical (Process 7 & 9) (Retired)',\n '1.2.840.10008.1.2.4.55': 'JPEG Full Progression, Non-Hierarchical (Process 10 & 12) (Retired)',\n '1.2.840.10008.1.2.4.56': 'JPEG Full Progression, Non-Hierarchical (Process 11 & 13) (Retired)',\n '1.2.840.10008.1.2.4.57': 'JPEG Lossless, Non-Hierarchical (Process 14)',\n '1.2.840.10008.1.2.4.58': 'JPEG Lossless, Non-Hierarchical (Process 15) (Retired)',\n '1.2.840.10008.1.2.4.59': 'JPEG Extended, Hierarchical (Process 16 & 18) (Retired)',\n '1.2.840.10008.1.2.4.60': 'JPEG Extended, Hierarchical (Process 17 & 19) (Retired)',\n '1.2.840.10008.1.2.4.61': 'JPEG Spectral Selection, Hierarchical (Process 20 & 22) (Retired)',\n '1.2.840.10008.1.2.4.62': 'JPEG Spectral Selection, Hierarchical (Process 21 & 23) (Retired)',\n '1.2.840.10008.1.2.4.63': 'JPEG Full Progression, Hierarchical (Process 24 & 26) (Retired)',\n '1.2.840.10008.1.2.4.64': 'JPEG Full Progression, Hierarchical (Process 25 & 27) (Retired)',\n '1.2.840.10008.1.2.4.65': 'JPEG Lossless, Hierarchical (Process 28) (Retired)',\n '1.2.840.10008.1.2.4.66': 'JPEG Lossless, Hierarchical (Process 29) (Retired)',\n '1.2.840.10008.1.2.4.70': 'JPEG Lossless, Non-Hierarchical, First-Order Prediction (Process 14 [Selection Value 1])',\n '1.2.840.10008.1.2.4.80': 'JPEG-LS Lossless Image Compression',\n '1.2.840.10008.1.2.4.81': 'JPEG-LS Lossy (Near-Lossless) Image Compression',\n '1.2.840.10008.1.2.4.90': 'JPEG 2000 Image Compression (Lossless Only)',\n '1.2.840.10008.1.2.4.91': 'JPEG 2000 Image Compression',\n '1.2.840.10008.1.2.4.92': 'JPEG 2000 Part 2 Multi-component Image Compression (Lossless Only)',\n '1.2.840.10008.1.2.4.93': 'JPEG 2000 Part 2 Multi-component Image Compression',\n '1.2.840.10008.1.2.4.94': 'JPIP Referenced',\n '1.2.840.10008.1.2.4.95': 'JPIP Referenced Deflate',\n '1.2.840.10008.1.2.4.100': 'MPEG2 Main Profile / Main Level',\n '1.2.840.10008.1.2.4.101': 'MPEG2 Main Profile / High Level',\n '1.2.840.10008.1.2.4.102': 'MPEG-4 AVC/H.264 High Profile / Level 4.1',\n '1.2.840.10008.1.2.4.103': 'MPEG-4 AVC/H.264 BD-compatible High Profile / Level 4.1',\n '1.2.840.10008.1.2.4.104': 'MPEG-4 AVC/H.264 High Profile / Level 4.2 For 2D Video',\n '1.2.840.10008.1.2.4.105': 'MPEG-4 AVC/H.264 High Profile / Level 4.2 For 3D Video',\n '1.2.840.10008.1.2.4.106': 'MPEG-4 AVC/H.264 Stereo High Profile / Level 4.2',\n '1.2.840.10008.1.2.4.107': 'HEVC/H.265 Main Profile / Level 5.1',\n '1.2.840.10008.1.2.4.108': 'HEVC/H.265 Main 10 Profile / Level 5.1',\n '1.2.840.10008.1.2.5': 'RLE Lossless',\n '1.2.840.10008.1.2.6.1': 'RFC 2557 MIME encapsulation (Retired)',\n '1.2.840.10008.1.2.6.2': 'XML Encoding (Retired)',\n '1.2.840.10008.1.2.7.1': 'SMPTE ST 2110-20 Uncompressed Progressive Active Video',\n '1.2.840.10008.1.2.7.2': 'SMPTE ST 2110-20 Uncompressed Interlaced Active Video',\n '1.2.840.10008.1.2.7.3': 'SMPTE ST 2110-30 PCM Digital Audio',\n '1.2.840.10008.1.20': 'Papyrus 3 Implicit VR Little Endian (Retired)'\n};\n\n/**\n * Transfer syntaxes indexed by keyword.\n *\n * @type {Object}\n */\nexport const transferSyntaxKeywords = {\n ImplicitVRLittleEndian: '1.2.840.10008.1.2',\n ExplicitVRLittleEndian: '1.2.840.10008.1.2.1',\n EncapsulatedUncompressedExplicitVRLittleEndian: '1.2.840.10008.1.2.1.98',\n DeflatedExplicitVRLittleEndian: '1.2.840.10008.1.2.1.99',\n ExplicitVRBigEndian: '1.2.840.10008.1.2.2',\n JPEGBaseline8Bit: '1.2.840.10008.1.2.4.50',\n JPEGExtended12Bit: '1.2.840.10008.1.2.4.51',\n JPEGExtended35: '1.2.840.10008.1.2.4.52',\n JPEGSpectralSelectionNonHierarchical68: '1.2.840.10008.1.2.4.53',\n JPEGSpectralSelectionNonHierarchical79: '1.2.840.10008.1.2.4.54',\n JPEGFullProgressionNonHierarchical1012: '1.2.840.10008.1.2.4.55',\n JPEGFullProgressionNonHierarchical1113: '1.2.840.10008.1.2.4.56',\n JPEGLossless: '1.2.840.10008.1.2.4.57',\n JPEGLosslessNonHierarchical15: '1.2.840.10008.1.2.4.58',\n JPEGExtendedHierarchical1618: '1.2.840.10008.1.2.4.59',\n JPEGExtendedHierarchical1719: '1.2.840.10008.1.2.4.60',\n JPEGSpectralSelectionHierarchical2022: '1.2.840.10008.1.2.4.61',\n JPEGSpectralSelectionHierarchical2123: '1.2.840.10008.1.2.4.62',\n JPEGFullProgressionHierarchical2426: '1.2.840.10008.1.2.4.63',\n JPEGFullProgressionHierarchical2527: '1.2.840.10008.1.2.4.64',\n JPEGLosslessHierarchical28: '1.2.840.10008.1.2.4.65',\n JPEGLosslessHierarchical29: '1.2.840.10008.1.2.4.66',\n JPEGLosslessSV1: '1.2.840.10008.1.2.4.70',\n JPEGLSLossless: '1.2.840.10008.1.2.4.80',\n JPEGLSNearLossless: '1.2.840.10008.1.2.4.81',\n JPEG2000Lossless: '1.2.840.10008.1.2.4.90',\n JPEG2000: '1.2.840.10008.1.2.4.91',\n JPEG2000MCLossless: '1.2.840.10008.1.2.4.92',\n JPEG2000MC: '1.2.840.10008.1.2.4.93',\n JPIPReferenced: '1.2.840.10008.1.2.4.94',\n JPIPReferencedDeflate: '1.2.840.10008.1.2.4.95',\n MPEG2MPML: '1.2.840.10008.1.2.4.100',\n MPEG2MPHL: '1.2.840.10008.1.2.4.101',\n MPEG4HP41: '1.2.840.10008.1.2.4.102',\n MPEG4HP41BD: '1.2.840.10008.1.2.4.103',\n MPEG4HP422D: '1.2.840.10008.1.2.4.104',\n MPEG4HP423D: '1.2.840.10008.1.2.4.105',\n MPEG4HP42STEREO: '1.2.840.10008.1.2.4.106',\n HEVCMP51: '1.2.840.10008.1.2.4.107',\n HEVCM10P51: '1.2.840.10008.1.2.4.108',\n RLELossless: '1.2.840.10008.1.2.5',\n RFC2557MIMEEncapsulation: '1.2.840.10008.1.2.6.1',\n XMLEncoding: '1.2.840.10008.1.2.6.2',\n SMPTEST211020UncompressedProgressiveActiveVideo: '1.2.840.10008.1.2.7.1',\n SMPTEST211020UncompressedInterlacedActiveVideo: '1.2.840.10008.1.2.7.2',\n SMPTEST211030PCMDigitalAudio: '1.2.840.10008.1.2.7.3',\n Papyrus3ImplicitVRLittleEndian: '1.2.840.10008.1.20'\n};\n","import {\n dictionary,\n tagGroups\n} from './dictionary';\n\n/**\n * Immutable tag.\n */\nexport class Tag {\n\n /**\n * The tag group.\n *\n * @type {string}\n */\n #group;\n\n /**\n * The tag element.\n *\n * @type {string}\n */\n #element;\n\n /**\n * @param {string} group The tag group as '####'.\n * @param {string} element The tag element as '####'.\n */\n constructor(group, element) {\n if (!group || typeof group === 'undefined') {\n throw new Error('Cannot create tag with no group.');\n }\n if (group.length !== 4) {\n throw new Error('Cannot create tag with badly sized group: ' + group);\n }\n if (!element || typeof element === 'undefined') {\n throw new Error('Cannot create tag with no element.');\n }\n if (element.length !== 4) {\n throw new Error('Cannot create tag with badly sized element: ' + element);\n }\n this.#group = group;\n this.#element = element;\n }\n\n /**\n * Get the tag group.\n *\n * @returns {string} The tag group.\n */\n getGroup() {\n return this.#group;\n }\n\n /**\n * Get the tag element.\n *\n * @returns {string} The tag element.\n */\n getElement() {\n return this.#element;\n }\n\n /**\n * Get as string representation of the tag: 'key: name'.\n *\n * @returns {string} A string representing the tag.\n */\n toString() {\n return this.getKey() + ': ' + this.getNameFromDictionary();\n }\n\n /**\n * Check for Tag equality.\n *\n * @param {Tag} rhs The other tag to compare to.\n * @returns {boolean} True if both tags are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.#group === rhs.getGroup() &&\n this.#element === rhs.getElement();\n }\n\n /**\n * Get the group-element key used to store DICOM elements.\n *\n * @returns {string} The key as '########'.\n */\n getKey() {\n return this.#group + this.#element;\n }\n\n /**\n * Get the group name as defined in TagGroups.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return tagGroups[this.#group];\n }\n\n /**\n * Does this tag have a VR.\n * Basically not the Item, ItemDelimitationItem nor\n * SequenceDelimitationItem tags.\n *\n * @returns {boolean} True if this tag has a VR.\n */\n isWithVR() {\n return !(this.#group === 'FFFE' &&\n (this.#element === 'E000' ||\n this.#element === 'E00D' ||\n this.#element === 'E0DD')\n );\n }\n\n /**\n * Is the tag group a private tag group ?\n *\n * See: {@link http://dicom.nema.org/medical/dicom/2022a/output/html/part05.html#sect_7.8}.\n *\n * @returns {boolean} True if the tag group is private,\n * ie if its group is an odd number.\n */\n isPrivate() {\n return parseInt(this.#group, 16) % 2 === 1;\n }\n\n /**\n * Get the tag info from the dicom dictionary.\n *\n * @returns {string[]|undefined} The info as [vr, multiplicity, name].\n */\n #getInfoFromDictionary() {\n let info;\n if (typeof dictionary[this.#group] !== 'undefined' &&\n typeof dictionary[this.#group][this.#element] !==\n 'undefined') {\n info = dictionary[this.#group][this.#element];\n }\n return info;\n }\n\n /**\n * Get the tag Value Representation (VR) from the dicom dictionary.\n *\n * @returns {string|undefined} The VR.\n */\n getVrFromDictionary() {\n let vr;\n const info = this.#getInfoFromDictionary();\n if (typeof info !== 'undefined') {\n vr = info[0];\n }\n return vr;\n }\n\n /**\n * Get the tag name from the dicom dictionary.\n *\n * @returns {string|undefined} The VR.\n */\n getNameFromDictionary() {\n let name;\n const info = this.#getInfoFromDictionary();\n if (typeof info !== 'undefined') {\n name = info[2];\n }\n return name;\n }\n\n} // Tag class\n\n/**\n * Tag compare function.\n *\n * @param {Tag} a The first tag.\n * @param {Tag} b The second tag.\n * @returns {number} The result of the tag comparison,\n * positive for b before a, negative for a before b and\n * zero to keep same order.\n */\nexport function tagCompareFunction(a, b) {\n // first by group\n let res = parseInt(a.getGroup(), 16) - parseInt(b.getGroup(), 16);\n if (res === 0) {\n // by element if same group\n res = parseInt(a.getElement(), 16) - parseInt(b.getElement(), 16);\n }\n return res;\n}\n\n/**\n * Split a group-element key used to store DICOM elements.\n *\n * @param {string} key The key in form \"00280102\" as generated by tag::getKey.\n * @returns {Tag} The DICOM tag.\n */\nexport function getTagFromKey(key) {\n if (!key || typeof key === 'undefined') {\n throw new Error('Cannot create tag with no key.');\n }\n if (key.length !== 8) {\n throw new Error('Cannot create tag with badly sized key: ' + key);\n }\n return new Tag(key.substring(0, 4), key.substring(4, 8));\n}\n\n/**\n * Get the TransferSyntaxUID Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getTransferSyntaxUIDTag() {\n return new Tag('0002', '0010');\n}\n\n/**\n * Get the FileMetaInformationGroupLength Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getFileMetaInformationGroupLengthTag() {\n return new Tag('0002', '0000');\n}\n\n/**\n * Is the input tag the FileMetaInformationGroupLength Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isFileMetaInformationGroupLengthTag(tag) {\n return tag.equals(getFileMetaInformationGroupLengthTag());\n}\n\n/**\n * Get the Item Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getItemTag() {\n return new Tag('FFFE', 'E000');\n}\n\n/**\n * Is the input tag the Item Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isItemTag(tag) {\n // faster than tag.equals(getItemTag());\n return tag.getKey() === 'FFFEE000';\n}\n\n/**\n * Get the ItemDelimitationItem Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getItemDelimitationItemTag() {\n return new Tag('FFFE', 'E00D');\n}\n\n/**\n * Is the input tag the ItemDelimitationItem Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isItemDelimitationItemTag(tag) {\n // faster than tag.equals(getItemDelimitationItemTag());\n return tag.getKey() === 'FFFEE00D';\n}\n\n/**\n * Get the SequenceDelimitationItem Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getSequenceDelimitationItemTag() {\n return new Tag('FFFE', 'E0DD');\n}\n\n/**\n * Is the input tag the SequenceDelimitationItem Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isSequenceDelimitationItemTag(tag) {\n // faster than tag.equals(getSequenceDelimitationItemTag());\n return tag.getKey() === 'FFFEE0DD';\n}\n\n/**\n * Get the PixelData Tag.\n *\n * @returns {Tag} The tag.\n */\nexport function getPixelDataTag() {\n return new Tag('7FE0', '0010');\n}\n\n/**\n * Is the input tag the PixelData Tag.\n *\n * @param {Tag} tag The tag to test.\n * @returns {boolean} True if the asked tag.\n */\nexport function isPixelDataTag(tag) {\n // faster than tag.equals(getPixelDataTag());\n return tag.getKey() === '7FE00010';\n}\n\n/**\n * Get a tag from the dictionary using a tag string name.\n *\n * @param {string} tagName The tag string name.\n * @returns {Tag|undefined} The tag object or null if not found.\n */\nexport function getTagFromDictionary(tagName) {\n if (typeof tagName === 'undefined' || tagName === null) {\n return null;\n }\n let group = null;\n let element = null;\n const dict = dictionary;\n const keys0 = Object.keys(dict);\n let keys1 = null;\n let foundTag = false;\n // search through dictionary\n for (let k0 = 0, lenK0 = keys0.length; k0 < lenK0; ++k0) {\n group = keys0[k0];\n keys1 = Object.keys(dict[group]);\n for (let k1 = 0, lenK1 = keys1.length; k1 < lenK1; ++k1) {\n element = keys1[k1];\n if (dict[group][element][2] === tagName) {\n foundTag = true;\n break;\n }\n }\n if (foundTag) {\n break;\n }\n }\n let tag;\n if (foundTag) {\n tag = new Tag(group, element);\n }\n return tag;\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Tag} from './dicomTag';\n/* eslint-enable no-unused-vars */\n\n/**\n * DICOM data element.\n */\nexport class DataElement {\n /**\n * The element Value Representation.\n *\n * @type {string}\n */\n vr;\n /**\n * The element value.\n *\n * @type {Array}\n */\n value;\n\n // [start] internal values\n // only present during parsing or writing otherwise not set\n\n /**\n * The element dicom tag.\n *\n * @type {Tag}\n */\n tag;\n\n /**\n * The element Value Length.\n *\n * @type {number}\n */\n vl;\n\n /**\n * Flag to know if defined or undefined sequence length.\n *\n * @type {boolean}\n */\n undefinedLength;\n\n /**\n * The element start offset.\n *\n * @type {number}\n */\n startOffset;\n\n /**\n * The element end offset.\n *\n * @type {number}\n */\n endOffset;\n\n /**\n * The sequence items.\n *\n * @type {Array}\n */\n items;\n\n // [end] internal values\n\n /**\n * @param {string} vr The element VR (Value Representation).\n */\n constructor(vr) {\n this.vr = vr;\n }\n}","/**\n * Is the Native endianness Little Endian.\n *\n * @returns {boolean} True if little endian.\n */\nexport function isNativeLittleEndian() {\n return new Int8Array(new Int16Array([1]).buffer)[0] > 0;\n}\n\n/**\n * Flip an array's endianness.\n * Inspired from [DataStream.js]{@link https://github.com/kig/DataStream.js}.\n *\n * @param {object} array The array to flip (modified).\n */\nfunction flipArrayEndianness(array) {\n const blen = array.byteLength;\n const u8 = new Uint8Array(array.buffer, array.byteOffset, blen);\n const bpe = array.BYTES_PER_ELEMENT;\n let tmp;\n for (let i = 0; i < blen; i += bpe) {\n for (let j = i + bpe - 1, k = i; j > k; j--, k++) {\n tmp = u8[k];\n u8[k] = u8[j];\n u8[j] = tmp;\n }\n }\n}\n\n/**\n * Data reader.\n */\nexport class DataReader {\n\n /**\n * The input buffer.\n *\n * @type {ArrayBuffer}\n */\n #buffer;\n\n /**\n * Is the endianness Little Endian.\n *\n * @type {boolean}\n */\n #isLittleEndian = true;\n\n /**\n * Is the Native endianness Little Endian.\n *\n * @type {boolean}\n */\n #isNativeLittleEndian = isNativeLittleEndian();\n\n /**\n * Flag to know if the TypedArray data needs flipping.\n *\n * @type {boolean}\n */\n #needFlip;\n\n /**\n * The main data view.\n *\n * @type {DataView}\n */\n #view;\n\n /**\n * @param {ArrayBuffer} buffer The input array buffer.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is little\n * or big endian (default: true).\n */\n constructor(buffer, isLittleEndian) {\n this.#buffer = buffer;\n // Set endian flag if not defined.\n if (typeof isLittleEndian !== 'undefined') {\n this.#isLittleEndian = isLittleEndian;\n }\n this.#needFlip = (this.#isLittleEndian !== this.#isNativeLittleEndian);\n this.#view = new DataView(buffer);\n }\n\n /**\n * Read Uint16 (2 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readUint16(byteOffset) {\n return this.#view.getUint16(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Int16 (2 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readInt16(byteOffset) {\n return this.#view.getInt16(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Uint32 (4 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readUint32(byteOffset) {\n return this.#view.getUint32(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read BigUint64 (8 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {bigint} The read data.\n */\n readBigUint64(byteOffset) {\n return this.#view.getBigUint64(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Int32 (4 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readInt32(byteOffset) {\n return this.#view.getInt32(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read BigInt64 (8 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {bigint} The read data.\n */\n readBigInt64(byteOffset) {\n return this.#view.getBigInt64(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Float32 (4 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readFloat32(byteOffset) {\n return this.#view.getFloat32(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read Float64 (8 bytes) data.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {number} The read data.\n */\n readFloat64(byteOffset) {\n return this.#view.getFloat64(byteOffset, this.#isLittleEndian);\n }\n\n /**\n * Read binary (0/1) array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint8Array} The read data.\n */\n readBinaryArray(byteOffset, size) {\n // input\n const bitArray = new Uint8Array(this.#buffer, byteOffset, size);\n // result\n const byteArrayLength = 8 * bitArray.length;\n const data = new Uint8Array(byteArrayLength);\n let bitNumber = 0;\n let bitIndex = 0;\n for (let i = 0; i < byteArrayLength; ++i) {\n bitNumber = i % 8;\n bitIndex = Math.floor(i / 8);\n // see https://stackoverflow.com/questions/4854207/get-a-specific-bit-from-byte/4854257\n // @ts-ignore\n data[i] = 255 * ((bitArray[bitIndex] & (1 << bitNumber)) !== 0);\n }\n return data;\n }\n\n /**\n * Read Uint8 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint8Array} The read data.\n */\n readUint8Array(byteOffset, size) {\n return new Uint8Array(this.#buffer, byteOffset, size);\n }\n\n /**\n * Read Int8 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Int8Array} The read data.\n */\n readInt8Array(byteOffset, size) {\n return new Int8Array(this.#buffer, byteOffset, size);\n }\n\n /**\n * Read Uint16 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint16Array} The read data.\n */\n readUint16Array(byteOffset, size) {\n const bpe = Uint16Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Uint16Array.BYTES_PER_ELEMENT (=2)\n if (byteOffset % bpe === 0) {\n data = new Uint16Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Uint16Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readUint16(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Int16 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Int16Array} The read data.\n */\n readInt16Array(byteOffset, size) {\n const bpe = Int16Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Int16Array.BYTES_PER_ELEMENT (=2)\n if (byteOffset % bpe === 0) {\n data = new Int16Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Int16Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readInt16(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Uint32 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Uint32Array} The read data.\n */\n readUint32Array(byteOffset, size) {\n const bpe = Uint32Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Uint32Array.BYTES_PER_ELEMENT (=4)\n if (byteOffset % bpe === 0) {\n data = new Uint32Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Uint32Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readUint32(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Uint64 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {BigUint64Array} The read data.\n */\n readUint64Array(byteOffset, size) {\n const bpe = BigUint64Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of BigUint64Array.BYTES_PER_ELEMENT (=8)\n if (byteOffset % bpe === 0) {\n data = new BigUint64Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new BigUint64Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readBigUint64(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Int32 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Int32Array} The read data.\n */\n readInt32Array(byteOffset, size) {\n const bpe = Int32Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Int32Array.BYTES_PER_ELEMENT (=4)\n if (byteOffset % bpe === 0) {\n data = new Int32Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Int32Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readInt32(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Int64 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {BigInt64Array} The read data.\n */\n readInt64Array(byteOffset, size) {\n const bpe = BigInt64Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of BigInt64Array.BYTES_PER_ELEMENT (=8)\n if (byteOffset % bpe === 0) {\n data = new BigInt64Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new BigInt64Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readBigInt64(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Float32 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Float32Array} The read data.\n */\n readFloat32Array(byteOffset, size) {\n const bpe = Float32Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Float32Array.BYTES_PER_ELEMENT (=4)\n if (byteOffset % bpe === 0) {\n data = new Float32Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Float32Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readFloat32(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read Float64 array.\n *\n * @param {number} byteOffset The offset to start reading from.\n * @param {number} size The size of the array.\n * @returns {Float64Array} The read data.\n */\n readFloat64Array(byteOffset, size) {\n const bpe = Float64Array.BYTES_PER_ELEMENT;\n const arraySize = size / bpe;\n let data = null;\n // byteOffset should be a multiple of Float64Array.BYTES_PER_ELEMENT (=8)\n if (byteOffset % bpe === 0) {\n data = new Float64Array(this.#buffer, byteOffset, arraySize);\n if (this.#needFlip) {\n flipArrayEndianness(data);\n }\n } else {\n data = new Float64Array(arraySize);\n let index = byteOffset;\n for (let i = 0; i < arraySize; ++i) {\n data[i] = this.readFloat64(index);\n index += bpe;\n }\n }\n return data;\n }\n\n /**\n * Read data as an hexadecimal string of length 4 (no '0x' prefix).\n *\n * @param {number} byteOffset The offset to start reading from.\n * @returns {string} The read data ('####').\n */\n readHex(byteOffset) {\n // read and convert to hex string\n const str = this.readUint16(byteOffset).toString(16);\n // return padded\n return '0000'.substring(0, 4 - str.length) + str.toUpperCase();\n }\n\n} // class DataReader\n","import {Vector3D} from './vector';\nimport {\n Matrix33,\n getIdentityMat33\n} from './matrix';\n\n/**\n * Create a 3x3 coronal (xzy) matrix.\n *\n * @returns {Matrix33} The coronal matrix.\n */\nexport function getCoronalMat33() {\n /* eslint-disable @stylistic/js/array-element-newline */\n return new Matrix33([\n 1, 0, 0,\n 0, 0, 1,\n 0, -1, 0\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n}\n\n/**\n * Create a 3x3 sagittal (yzx) matrix.\n *\n * @returns {Matrix33} The sagittal matrix.\n */\nexport function getSagittalMat33() {\n /* eslint-disable @stylistic/js/array-element-newline */\n return new Matrix33([\n 0, 0, -1,\n 1, 0, 0,\n 0, -1, 0\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n}\n\n/**\n * Default anatomical plane orientations.\n */\nexport const Orientation = {\n /**\n * Axial, also known as transverse.\n */\n Axial: 'axial',\n /**\n * Coronal, also known as frontal.\n */\n Coronal: 'coronal',\n /**\n * Sagittal, also known as anteroposterior.\n */\n Sagittal: 'sagittal'\n};\n\n/**\n * Get an orientation matrix from a name.\n *\n * @param {string} name The orientation name.\n * @returns {Matrix33|undefined} The orientation matrix.\n */\nexport function getMatrixFromName(name) {\n let matrix;\n if (name === Orientation.Axial) {\n matrix = getIdentityMat33();\n } else if (name === Orientation.Coronal) {\n matrix = getCoronalMat33();\n } else if (name === Orientation.Sagittal) {\n matrix = getSagittalMat33();\n }\n return matrix;\n}\n\n/**\n * Get the orientation code of an orientation matrix. Each letter defines\n * the towards direction. Letters are: R (right), L (left),\n * A (anterior), P (posterior), I (inferior) and S (superior).\n *\n * @param {Matrix33} matrix The orientation matrix.\n * @returns {string} The orientation code.\n */\nexport function getOrientationStringLPS(matrix) {\n const v0 = new Vector3D(\n matrix.get(0, 0),\n matrix.get(1, 0),\n matrix.get(2, 0)\n );\n const v1 = new Vector3D(\n matrix.get(0, 1),\n matrix.get(1, 1),\n matrix.get(2, 1)\n );\n const v2 = new Vector3D(\n matrix.get(0, 2),\n matrix.get(1, 2),\n matrix.get(2, 2)\n );\n return getVectorStringLPS(v0) +\n getVectorStringLPS(v1) +\n getVectorStringLPS(v2);\n}\n\n/**\n * Get the orientation code of an orientation vector.\n * Credits: David Clunie, {@link https://www.dclunie.com/medical-image-faq/html/part2.html}.\n *\n * @param {Vector3D} vector The orientation vector.\n * @returns {string} The orientation code.\n */\nfunction getVectorStringLPS(vector) {\n let abs = new Vector3D(\n Math.abs(vector.getX()),\n Math.abs(vector.getY()),\n Math.abs(vector.getZ())\n );\n\n let orientation = '';\n const orientationX = vector.getX() < 0 ? 'R' : 'L';\n const orientationY = vector.getY() < 0 ? 'A' : 'P';\n // as defined in DICOM\n //const orientationZ = vector.getZ() < 0 ? 'F' : 'H';\n const orientationZ = vector.getZ() < 0 ? 'I' : 'S';\n\n const threshold = 0.0001;\n\n for (let i = 0; i < 3; i++) {\n if (abs.getX() > threshold &&\n abs.getX() > abs.getY() &&\n abs.getX() > abs.getZ()) {\n orientation += orientationX;\n abs = new Vector3D(0, abs.getY(), abs.getZ());\n } else if (abs.getY() > threshold &&\n abs.getY() > abs.getX() &&\n abs.getY() > abs.getZ()) {\n orientation += orientationY;\n abs = new Vector3D(abs.getX(), 0, abs.getZ());\n } else if (abs.getZ() > threshold &&\n abs.getZ() > abs.getX() &&\n abs.getZ() > abs.getY()) {\n orientation += orientationZ;\n abs = new Vector3D(abs.getX(), abs.getY(), 0);\n } else {\n break;\n }\n }\n\n return orientation;\n}\n\n/**\n * Get the LPS 'group' (axial, coronal or sagittal) from a LPS code.\n *\n * @param {string} code The LPS code string.\n * @returns {string|undefined} The group.\n */\nexport function getLPSGroup(code) {\n let orientStr;\n const axialCodes = ['LPS', 'LAI', 'RPI', 'RAS'];\n const coronalCodes = ['LSA', 'LIP', 'RSP', 'RIA'];\n const sagittalCodes = ['PSL', 'PIR', 'ASR', 'AIL'];\n if (axialCodes.includes(code)) {\n orientStr = Orientation.Axial;\n } else if (coronalCodes.includes(code)) {\n orientStr = Orientation.Coronal;\n } else if (sagittalCodes.includes(code)) {\n orientStr = Orientation.Sagittal;\n }\n return orientStr;\n}\n\n/**\n * Get the orientation matrix associated to the direction cosines.\n *\n * @param {number[]} cosines The direction cosines.\n * @returns {Matrix33|undefined} The orientation matrix.\n */\nexport function getOrientationFromCosines(cosines) {\n let orientationMatrix;\n if (typeof cosines !== 'undefined' && cosines.length === 6) {\n const rowCosines = new Vector3D(cosines[0], cosines[1], cosines[2]);\n const colCosines = new Vector3D(cosines[3], cosines[4], cosines[5]);\n const normal = rowCosines.crossProduct(colCosines);\n /* eslint-disable @stylistic/js/array-element-newline */\n orientationMatrix = new Matrix33([\n rowCosines.getX(), colCosines.getX(), normal.getX(),\n rowCosines.getY(), colCosines.getY(), normal.getY(),\n rowCosines.getZ(), colCosines.getZ(), normal.getZ()\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n }\n return orientationMatrix;\n}\n","import {\n Tag,\n getTransferSyntaxUIDTag,\n isSequenceDelimitationItemTag,\n isItemDelimitationItemTag,\n isPixelDataTag\n} from './dicomTag';\nimport {\n is32bitVLVR,\n isCharSetStringVR,\n transferSyntaxes,\n transferSyntaxKeywords,\n vrTypes,\n} from './dictionary';\nimport {DataElement} from './dataElement';\nimport {DataReader} from './dataReader';\nimport {logger} from '../utils/logger';\nimport {\n getOrientationFromCosines,\n getOrientationStringLPS,\n getLPSGroup\n} from '../math/orientation';\n\n/**\n * List of DICOM data elements indexed via a 8 character string formed from\n * the group and element numbers.\n *\n * @typedef {Object} DataElements\n */\n\n/**\n * Get the version of the library.\n *\n * @returns {string} The version of the library.\n */\nexport function getDwvVersion() {\n return '0.34.0-beta.5';\n}\n\n/**\n * Check that an input buffer includes the DICOM prefix 'DICM'\n * after the 128 bytes preamble.\n *\n * Ref: [DICOM File Meta]{@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part10/chapter_7.html#sect_7.1}.\n *\n * @param {ArrayBuffer} buffer The buffer to check.\n * @returns {boolean} True if the buffer includes the prefix.\n */\nexport function hasDicomPrefix(buffer) {\n // check size: typed array constructor will throw RangeError if\n // byteOffset + length * TypedArray.BYTES_PER_ELEMENT > buffer.byteLength\n if (buffer.byteLength < 132) {\n return false;\n }\n const prefixArray = new Uint8Array(buffer, 128, 4);\n const stringReducer = function (previous, current) {\n return previous += String.fromCharCode(current);\n };\n return prefixArray.reduce(stringReducer, '') === 'DICM';\n}\n\n// Zero-width space (u200B)\n// @ts-ignore\nconst ZWS = String.fromCharCode('u200B');\n\n/**\n * Clean string: remove zero-width space ending and trim.\n * Warning: no tests are done on the input, will fail if\n * null or undefined or not string.\n * Exported for tests only.\n *\n * @param {string} inputStr The string to clean.\n * @returns {string} The cleaned string.\n */\nexport function cleanString(inputStr) {\n let res = inputStr;\n // get rid of ending zero-width space\n const lastIndex = inputStr.length - 1;\n if (inputStr[lastIndex] === ZWS) {\n res = inputStr.substring(0, lastIndex);\n }\n // trim spaces\n res = res.trim();\n // return\n return res;\n}\n\n/**\n * Get the utfLabel (used by the TextDecoder) from a character set term.\n *\n * References:\n * - DICOM [Value Encoding]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_6.html},\n * - DICOM [Specific Character Set]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.12.html#sect_C.12.1.1.2},\n * - [TextDecoder#Parameters]{@link https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder/TextDecoder#Parameters}.\n *\n * @param {string} charSetTerm The DICOM character set.\n * @returns {string} The corresponding UTF label.\n */\nfunction getUtfLabel(charSetTerm) {\n let label = 'utf-8';\n if (charSetTerm === 'ISO_IR 100') {\n label = 'iso-8859-1';\n } else if (charSetTerm === 'ISO_IR 101') {\n label = 'iso-8859-2';\n } else if (charSetTerm === 'ISO_IR 109') {\n label = 'iso-8859-3';\n } else if (charSetTerm === 'ISO_IR 110') {\n label = 'iso-8859-4';\n } else if (charSetTerm === 'ISO_IR 144') {\n label = 'iso-8859-5';\n } else if (charSetTerm === 'ISO_IR 127') {\n label = 'iso-8859-6';\n } else if (charSetTerm === 'ISO_IR 126') {\n label = 'iso-8859-7';\n } else if (charSetTerm === 'ISO_IR 138') {\n label = 'iso-8859-8';\n } else if (charSetTerm === 'ISO_IR 148') {\n label = 'iso-8859-9';\n } else if (charSetTerm === 'ISO_IR 13') {\n label = 'shift-jis';\n } else if (charSetTerm === 'ISO_IR 166') {\n label = 'iso-8859-11';\n } else if (charSetTerm === 'ISO 2022 IR 87') {\n label = 'iso-2022-jp';\n } else if (charSetTerm === 'ISO 2022 IR 149') {\n // not supported by TextDecoder when it says it should...\n //label = \"iso-2022-kr\";\n } else if (charSetTerm === 'ISO 2022 IR 58') {\n // not supported by TextDecoder...\n //label = \"iso-2022-cn\";\n } else if (charSetTerm === 'ISO_IR 192') {\n label = 'utf-8';\n } else if (charSetTerm === 'GB18030') {\n label = 'gb18030';\n } else if (charSetTerm === 'GB2312') {\n label = 'gb2312';\n } else if (charSetTerm === 'GBK') {\n label = 'chinese';\n }\n return label;\n}\n\n/**\n * Default text decoder.\n */\nclass DefaultTextDecoder {\n /**\n * Decode an input string buffer.\n *\n * @param {Uint8Array} buffer The buffer to decode.\n * @returns {string} The decoded string.\n */\n decode(buffer) {\n let result = '';\n for (let i = 0, leni = buffer.length; i < leni; ++i) {\n result += String.fromCharCode(buffer[i]);\n }\n return result;\n }\n}\n\n/**\n * Get patient orientation label in the reverse direction.\n *\n * @param {string} ori Patient Orientation value.\n * @returns {string} Reverse Orientation Label.\n */\nexport function getReverseOrientation(ori) {\n if (!ori) {\n return null;\n }\n // reverse labels\n const rlabels = {\n L: 'R',\n R: 'L',\n A: 'P',\n P: 'A',\n H: 'F',\n F: 'H'\n };\n\n let rori = '';\n for (let n = 0; n < ori.length; n++) {\n const o = ori.substring(n, n + 1);\n const r = rlabels[o];\n if (r) {\n rori += r;\n }\n }\n // return\n return rori;\n}\n\n/**\n * Get the name of an image orientation patient.\n *\n * @param {number[]} orientation The image orientation patient.\n * @returns {string|undefined} The orientation\n * name: axial, coronal or sagittal.\n */\nexport function getOrientationName(orientation) {\n let name;\n const orientMatrix = getOrientationFromCosines(orientation);\n if (typeof orientMatrix !== 'undefined') {\n const lpsStr = getOrientationStringLPS(orientMatrix.asOneAndZeros());\n name = getLPSGroup(lpsStr);\n }\n return name;\n}\n\n/**\n * Tell if a given syntax is an implicit one (element with no VR).\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if an implicit syntax.\n */\nexport function isImplicitTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.ImplicitVRLittleEndian;\n}\n\n/**\n * Tell if a given syntax is a big endian syntax.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a big endian syntax.\n */\nexport function isBigEndianTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.ExplicitVRBigEndian;\n}\n\n/**\n * Tell if a given syntax is a JPEG baseline one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a jpeg baseline syntax.\n */\nexport function isJpegBaselineTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.JPEGBaseline8Bit ||\n syntax === transferSyntaxKeywords.JPEGExtended12Bit;\n}\n\n/**\n * Tell if a given syntax is a JPEG Lossless one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a jpeg lossless syntax.\n */\nexport function isJpegLosslessTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.JPEGLossless ||\n syntax === transferSyntaxKeywords.JPEGLosslessSV1;\n}\n\n/**\n * Tell if a given syntax is a JPEG 2000 one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a jpeg 2000 syntax.\n */\nexport function isJpeg2000TransferSyntax(syntax) {\n return syntax.match(/1.2.840.10008.1.2.4.9/) !== null;\n}\n\n/**\n * Tell if a given syntax is a RLE (Run-length encoding) one.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a RLE syntax.\n */\nfunction isRleTransferSyntax(syntax) {\n return syntax === transferSyntaxKeywords.RLELossless;\n}\n\n/**\n * Tell if a given syntax needs decompression.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {string|undefined} The name of the decompression algorithm.\n */\nexport function getSyntaxDecompressionName(syntax) {\n let algo;\n if (isJpeg2000TransferSyntax(syntax)) {\n algo = 'jpeg2000';\n } else if (isJpegBaselineTransferSyntax(syntax)) {\n algo = 'jpeg-baseline';\n } else if (isJpegLosslessTransferSyntax(syntax)) {\n algo = 'jpeg-lossless';\n } else if (isRleTransferSyntax(syntax)) {\n algo = 'rle';\n }\n return algo;\n}\n\n/**\n * Tell if a given syntax is supported for reading.\n *\n * @param {string} syntax The transfer syntax to test.\n * @returns {boolean} True if a supported syntax.\n */\nfunction isReadSupportedTransferSyntax(syntax) {\n return (syntax === transferSyntaxKeywords.ImplicitVRLittleEndian ||\n syntax === transferSyntaxKeywords.ExplicitVRLittleEndian ||\n syntax === transferSyntaxKeywords.ExplicitVRBigEndian ||\n isJpegBaselineTransferSyntax(syntax) ||\n isJpegLosslessTransferSyntax(syntax) ||\n isJpeg2000TransferSyntax(syntax) ||\n isRleTransferSyntax(syntax));\n}\n\n/**\n * Get a transfer syntax name from its UID.\n *\n * @param {string} syntax The transfer syntax UID value.\n * @returns {string} The transfer syntax name.\n */\nexport function getTransferSyntaxName(syntax) {\n let name = 'Unknown';\n if (typeof transferSyntaxes[syntax] !== 'undefined') {\n name = transferSyntaxes[syntax];\n }\n return name;\n}\n\n/**\n * Guess the transfer syntax from the first data element.\n *\n * See {@link https://github.com/ivmartel/dwv/issues/188}\n * (Allow to load DICOM with no DICM preamble) for more details.\n *\n * @param {DataElement} firstDataElement The first data element\n * of the DICOM header.\n * @returns {DataElement} The transfer syntax data element.\n */\nfunction guessTransferSyntax(firstDataElement) {\n const oEightGroupBigEndian = '0800';\n const oEightGroupLittleEndian = '0008';\n // check that group is 0008\n const group = firstDataElement.tag.getGroup();\n if (group !== oEightGroupBigEndian &&\n group !== oEightGroupLittleEndian) {\n throw new Error(\n 'Not a valid DICOM file (no magic DICM word found' +\n ' and first element not in 0008 group)'\n );\n }\n // reasonable assumption: 2 uppercase characters => explicit vr\n const vr = firstDataElement.vr;\n const vr0 = vr.charCodeAt(0);\n const vr1 = vr.charCodeAt(1);\n const implicit = (vr0 >= 65 && vr0 <= 90 && vr1 >= 65 && vr1 <= 90)\n ? false : true;\n // guess transfer syntax\n let syntax = null;\n if (group === oEightGroupLittleEndian) {\n if (implicit) {\n syntax = transferSyntaxKeywords.ImplicitVRLittleEndian;\n } else {\n syntax = transferSyntaxKeywords.ExplicitVRLittleEndian;\n }\n } else {\n if (implicit) {\n // ImplicitVRBigEndian: impossible\n throw new Error(\n 'Not a valid DICOM file (no magic DICM word found' +\n 'and implicit VR big endian detected)'\n );\n } else {\n syntax = transferSyntaxKeywords.ExplicitVRBigEndian;\n }\n }\n // set transfer syntax data element\n const dataElement = new DataElement('UI');\n dataElement.tag = getTransferSyntaxUIDTag();\n dataElement.value = [syntax];\n dataElement.vl = dataElement.value[0].length;\n dataElement.startOffset = firstDataElement.startOffset;\n dataElement.endOffset = dataElement.startOffset + dataElement.vl;\n\n return dataElement;\n}\n\n/**\n * Get the appropriate TypedArray in function of arguments.\n *\n * @param {number} bitsAllocated The number of bites used to store\n * the data: [8, 16, 32].\n * @param {number} pixelRepresentation The pixel representation,\n * 0:unsigned;1:signed.\n * @param {number} size The size of the new array.\n * @returns {Uint8Array|Int8Array|Uint16Array|Int16Array|Uint32Array|Int32Array}\n * The good typed array.\n */\nexport function getTypedArray(bitsAllocated, pixelRepresentation, size) {\n let res = null;\n try {\n if (bitsAllocated === 1 || bitsAllocated === 8) {\n if (pixelRepresentation === 0) {\n res = new Uint8Array(size);\n } else {\n res = new Int8Array(size);\n }\n } else if (bitsAllocated === 16) {\n if (pixelRepresentation === 0) {\n res = new Uint16Array(size);\n } else {\n res = new Int16Array(size);\n }\n } else if (bitsAllocated === 32) {\n if (pixelRepresentation === 0) {\n res = new Uint32Array(size);\n } else {\n res = new Int32Array(size);\n }\n }\n } catch (error) {\n if (error instanceof RangeError) {\n const powerOf2 = Math.floor(Math.log(size) / Math.log(2));\n logger.error('Cannot allocate array of size: ' +\n size + ' (>2^' + powerOf2 + ').');\n }\n }\n return res;\n}\n\n/**\n * Get the number of bytes occupied by a data element prefix,\n * (without its value).\n *\n * WARNING: this is valid for tags with a VR, if not sure use\n * the 'isTagWithVR' function first.\n *\n * Reference:\n * - [Data Element explicit]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_7.html#table_7.1-1},\n * - [Data Element implicit]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_7.5.2.html#table_7.5-1}.\n *\n * ```\n * | Tag | VR | VL | Value |\n * | 4 | 2 | 2 | X | -> regular explicit: 8 + X\n * | 4 | 2+2 | 4 | X | -> 32bit VL: 12 + X\n *\n * | Tag | VL | Value |\n * | 4 | 4 | X | -> implicit (32bit VL): 8 + X\n *\n * | Tag | Len | Value |\n * | 4 | 4 | X | -> item: 8 + X\n * ```\n *\n * @param {string} vr The Value Representation of the element.\n * @param {boolean} isImplicit Does the data use implicit VR?\n * @returns {number} The size of the element prefix.\n */\nexport function getDataElementPrefixByteSize(vr, isImplicit) {\n return isImplicit ? 8 : is32bitVLVR(vr) ? 12 : 8;\n}\n\n/**\n * Is the input VR a known VR.\n *\n * @param {string} vr The vr to test.\n * @returns {boolean} True if known.\n */\nfunction isKnownVR(vr) {\n const extraVrTypes = ['NONE', 'ox', 'xx', 'xs'];\n const knownTypes = Object.keys(vrTypes).concat(extraVrTypes);\n return knownTypes.includes(vr);\n}\n\n/**\n * Small list of used tag keys.\n */\nconst TagKeys = {\n TransferSyntax: '00020010',\n SpecificCharacterSet: '00080005',\n NumberOfFrames: '00280008',\n BitsAllocated: '00280100',\n PixelRepresentation: '00280103',\n PixelData: '7FE00010'\n};\n\n/**\n * DicomParser class.\n *\n * @example\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * // setup the dicom parser\n * const dicomParser = new dwv.DicomParser();\n * // parse the buffer\n * dicomParser.parse(event.target.response);\n * // get the dicom tags\n * const tags = dicomParser.getDicomElements();\n * // display the modality\n * const div = document.getElementById('dwv');\n * div.appendChild(document.createTextNode(\n * 'Modality: ' + tags['00080060'].value[0]\n * ));\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class DicomParser {\n\n /**\n * The list of DICOM elements.\n *\n * @type {DataElements}\n */\n #dataElements = {};\n\n /**\n * Default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Default text decoder.\n *\n * @type {DefaultTextDecoder}\n */\n #defaultTextDecoder = new DefaultTextDecoder();\n\n /**\n * Special text decoder.\n *\n * @type {DefaultTextDecoder|TextDecoder}\n */\n #textDecoder = this.#defaultTextDecoder;\n\n /**\n * Decode an input string buffer using the default text decoder.\n *\n * @param {Uint8Array} buffer The buffer to decode.\n * @returns {string} The decoded string.\n */\n #decodeString(buffer) {\n return this.#defaultTextDecoder.decode(buffer);\n }\n\n /**\n * Decode an input string buffer using the 'special' text decoder.\n *\n * @param {Uint8Array} buffer The buffer to decode.\n * @returns {string} The decoded string.\n */\n #decodeSpecialString(buffer) {\n return this.#textDecoder.decode(buffer);\n }\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The input character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Set the text decoder character set.\n *\n * @param {string} characterSet The input character set.\n */\n setDecoderCharacterSet(characterSet) {\n /**\n * The text decoder.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder}.\n *\n * @external TextDecoder\n */\n this.#textDecoder = new TextDecoder(characterSet);\n }\n\n // not using type DataElements since the typedef is not exported with the API\n\n /**\n * Get the DICOM data elements.\n *\n * @returns {Object} The data elements.\n */\n getDicomElements() {\n return this.#dataElements;\n }\n\n /**\n * Read a DICOM tag.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @returns {object} An object containing the tag and the end offset.\n */\n #readTag(reader, offset) {\n // group\n const group = reader.readHex(offset);\n offset += Uint16Array.BYTES_PER_ELEMENT;\n // element\n const element = reader.readHex(offset);\n offset += Uint16Array.BYTES_PER_ELEMENT;\n // return\n return {\n tag: new Tag(group, element),\n endOffset: offset\n };\n }\n\n /**\n * Read an item data element.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @param {boolean} implicit Is the DICOM VR implicit?\n * @returns {object} The item data as a list of data elements.\n */\n #readItemDataElement(reader, offset, implicit) {\n const itemData = {};\n\n // read the first item\n let item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n\n // exit if it is a sequence delimitation item\n if (isSequenceDelimitationItemTag(item.tag)) {\n return {\n data: itemData,\n endOffset: item.endOffset,\n isSeqDelim: true\n };\n }\n\n // store item (mainly to keep vl)\n itemData[item.tag.getKey()] = {\n tag: item.tag,\n vr: 'NONE',\n vl: item.vl,\n undefinedLength: item.undefinedLength\n };\n\n if (!item.undefinedLength) {\n // explicit VR item: read until the end offset\n const endOffset = offset;\n offset -= item.vl;\n while (offset < endOffset) {\n item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n itemData[item.tag.getKey()] = item;\n }\n } else {\n // implicit VR item: read until the item delimitation item\n let isItemDelim = false;\n while (!isItemDelim) {\n item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n isItemDelim = isItemDelimitationItemTag(item.tag);\n if (!isItemDelim) {\n itemData[item.tag.getKey()] = item;\n }\n }\n }\n\n return {\n data: itemData,\n endOffset: offset,\n isSeqDelim: false\n };\n }\n\n /**\n * Read the pixel item data element.\n * Ref: [Single frame fragments]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_A.4.html#table_A.4-1}.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @param {boolean} implicit Is the DICOM VR implicit?\n * @returns {object} The item data as an array of data elements.\n */\n #readPixelItemDataElement(\n reader, offset, implicit) {\n const itemData = [];\n\n // first item: basic offset table\n let item = this.#readDataElement(reader, offset, implicit);\n const offsetTableVl = item.vl;\n offset = item.endOffset;\n\n // read until the sequence delimitation item\n let isSeqDelim = false;\n while (!isSeqDelim) {\n item = this.#readDataElement(reader, offset, implicit);\n offset = item.endOffset;\n isSeqDelim = isSequenceDelimitationItemTag(item.tag);\n if (!isSeqDelim) {\n // force pixel item vr to OB\n item.vr = 'OB';\n itemData.push(item);\n }\n }\n\n return {\n data: itemData,\n endOffset: offset,\n offsetTableVl: offsetTableVl\n };\n }\n\n /**\n * Read a DICOM data element.\n *\n * Reference: [DICOM VRs]{@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_6.2.html#table_6.2-1}.\n *\n * @param {DataReader} reader The raw data reader.\n * @param {number} offset The offset where to start to read.\n * @param {boolean} implicit Is the DICOM VR implicit?\n * @returns {DataElement} The data element.\n */\n #readDataElement(reader, offset, implicit) {\n // Tag: group, element\n const readTagRes = this.#readTag(reader, offset);\n const tag = readTagRes.tag;\n offset = readTagRes.endOffset;\n\n // Value Representation (VR)\n let vr = null;\n let is32bitVL = false;\n if (tag.isWithVR()) {\n // implicit VR\n if (implicit) {\n vr = tag.getVrFromDictionary();\n if (typeof vr === 'undefined') {\n vr = 'UN';\n }\n is32bitVL = true;\n } else {\n vr = this.#decodeString(reader.readUint8Array(offset, 2));\n offset += 2 * Uint8Array.BYTES_PER_ELEMENT;\n is32bitVL = is32bitVLVR(vr);\n // reserved 2 bytes\n if (is32bitVL) {\n offset += 2 * Uint8Array.BYTES_PER_ELEMENT;\n }\n }\n } else {\n vr = 'NONE';\n is32bitVL = true;\n }\n\n // check vr\n if (!isKnownVR(vr)) {\n logger.warn('Unknown VR: ' + vr +\n ' (for tag ' + tag.getKey() + '), treating as \\'UN\\'');\n vr = 'UN';\n }\n\n // Value Length (VL)\n let vl = 0;\n if (is32bitVL) {\n vl = reader.readUint32(offset);\n offset += Uint32Array.BYTES_PER_ELEMENT;\n } else {\n vl = reader.readUint16(offset);\n offset += Uint16Array.BYTES_PER_ELEMENT;\n }\n\n // check the value of VL\n let undefinedLength = false;\n if (vl === 0xffffffff) {\n undefinedLength = true;\n vl = 0;\n }\n\n // treat private tag with unknown VR and zero VL as a sequence (see #799)\n if (tag.isPrivate() && vr === 'UN' && vl === 0) {\n vr = 'SQ';\n }\n\n let startOffset = offset;\n let endOffset = startOffset + vl;\n\n // read sequence elements\n let data;\n if (isPixelDataTag(tag) && undefinedLength) {\n // pixel data sequence (implicit)\n const pixItemData =\n this.#readPixelItemDataElement(reader, offset, implicit);\n offset = pixItemData.endOffset;\n startOffset += pixItemData.offsetTableVl;\n data = pixItemData.data;\n endOffset = offset;\n vl = offset - startOffset;\n } else if (vr === 'SQ') {\n // sequence\n data = [];\n let itemData;\n if (!undefinedLength) {\n if (vl !== 0) {\n // explicit VR sequence: read until the end offset\n const sqEndOffset = offset + vl;\n while (offset < sqEndOffset) {\n itemData = this.#readItemDataElement(reader, offset, implicit);\n data.push(itemData.data);\n offset = itemData.endOffset;\n }\n endOffset = offset;\n vl = offset - startOffset;\n }\n } else {\n // implicit VR sequence: read until the sequence delimitation item\n let isSeqDelim = false;\n while (!isSeqDelim) {\n itemData = this.#readItemDataElement(reader, offset, implicit);\n isSeqDelim = itemData.isSeqDelim;\n offset = itemData.endOffset;\n // do not store the delimitation item\n if (!isSeqDelim) {\n data.push(itemData.data);\n }\n }\n endOffset = offset;\n vl = offset - startOffset;\n }\n }\n\n // return\n const element = new DataElement(vr);\n element.tag = tag;\n element.vl = vl;\n element.startOffset = startOffset;\n element.endOffset = endOffset;\n // only set if true (only for sequences and items)\n if (undefinedLength) {\n element.undefinedLength = undefinedLength;\n }\n if (data) {\n element.items = data;\n }\n return element;\n }\n\n /**\n * Interpret the data of an element.\n *\n * @param {DataElement} element The data element.\n * @param {DataReader} reader The raw data reader.\n * @param {number} [pixelRepresentation] PixelRepresentation 0->unsigned,\n * 1->signed (needed for pixel data or VR=xs).\n * @param {number} [bitsAllocated] Bits allocated (needed for pixel data).\n * @returns {object} The interpreted data.\n */\n #interpretElement(\n element, reader, pixelRepresentation, bitsAllocated) {\n\n const tag = element.tag;\n const vl = element.vl;\n const vr = element.vr;\n const offset = element.startOffset;\n\n // data\n let data = null;\n const vrType = vrTypes[vr];\n if (isPixelDataTag(tag)) {\n if (element.undefinedLength) {\n // implicit pixel data sequence\n data = [];\n for (let j = 0; j < element.items.length; ++j) {\n data.push(this.#interpretElement(\n element.items[j], reader,\n pixelRepresentation, bitsAllocated));\n }\n // remove non parsed items\n delete element.items;\n } else {\n // check bits allocated and VR\n // https://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_A.2.html\n if (bitsAllocated > 8 && vr === 'OB') {\n logger.warn(\n 'Reading DICOM pixel data with bitsAllocated>8 and OB VR' +\n ', treating as OW'\n );\n element.vr = 'OW';\n }\n // read\n data = [];\n if (bitsAllocated === 1) {\n data.push(reader.readBinaryArray(offset, vl));\n } else if (bitsAllocated === 8) {\n if (pixelRepresentation === 0) {\n data.push(reader.readUint8Array(offset, vl));\n } else {\n data.push(reader.readInt8Array(offset, vl));\n }\n } else if (bitsAllocated === 16) {\n if (pixelRepresentation === 0) {\n data.push(reader.readUint16Array(offset, vl));\n } else {\n data.push(reader.readInt16Array(offset, vl));\n }\n } else {\n throw new Error('Unsupported bits allocated: ' + bitsAllocated);\n }\n }\n } else if (typeof vrType !== 'undefined') {\n if (vrType === 'Uint8') {\n data = reader.readUint8Array(offset, vl);\n } else if (vrType === 'Uint16') {\n data = reader.readUint16Array(offset, vl);\n // keep as binary for 'O*' VR\n if (vr[0] !== 'O') {\n data = Array.from(data);\n }\n } else if (vrType === 'Uint32') {\n data = reader.readUint32Array(offset, vl);\n // keep as binary for 'O*' VR\n if (vr[0] !== 'O') {\n data = Array.from(data);\n }\n } else if (vrType === 'Uint64') {\n data = reader.readUint64Array(offset, vl);\n } else if (vrType === 'Int16') {\n data = Array.from(reader.readInt16Array(offset, vl));\n } else if (vrType === 'Int32') {\n data = Array.from(reader.readInt32Array(offset, vl));\n } else if (vrType === 'Int64') {\n data = reader.readInt64Array(offset, vl);\n } else if (vrType === 'Float32') {\n data = Array.from(reader.readFloat32Array(offset, vl));\n } else if (vrType === 'Float64') {\n data = Array.from(reader.readFloat64Array(offset, vl));\n } else if (vrType === 'string') {\n const stream = reader.readUint8Array(offset, vl);\n if (isCharSetStringVR(vr)) {\n data = this.#decodeSpecialString(stream);\n } else {\n data = this.#decodeString(stream);\n }\n data = cleanString(data).split('\\\\');\n } else {\n throw new Error('Unknown VR type: ' + vrType);\n }\n } else if (vr === 'xx') {\n // US or OW\n data = Array.from(reader.readUint16Array(offset, vl));\n } else if (vr === 'ox') {\n // OB or OW\n if (bitsAllocated === 8) {\n if (pixelRepresentation === 0) {\n data = Array.from(reader.readUint8Array(offset, vl));\n } else {\n data = Array.from(reader.readInt8Array(offset, vl));\n }\n } else {\n if (pixelRepresentation === 0) {\n data = Array.from(reader.readUint16Array(offset, vl));\n } else {\n data = Array.from(reader.readInt16Array(offset, vl));\n }\n }\n } else if (vr === 'xs') {\n // (US or SS) or (US or SS or OW)\n if (pixelRepresentation === 0) {\n data = Array.from(reader.readUint16Array(offset, vl));\n } else {\n data = Array.from(reader.readInt16Array(offset, vl));\n }\n } else if (vr === 'AT') {\n // attribute\n const raw = reader.readUint16Array(offset, vl);\n data = [];\n for (let i = 0, leni = raw.length; i < leni; i += 2) {\n const stri = raw[i].toString(16);\n const stri1 = raw[i + 1].toString(16);\n let str = '(';\n str += '0000'.substring(0, 4 - stri.length) + stri.toUpperCase();\n str += ',';\n str += '0000'.substring(0, 4 - stri1.length) + stri1.toUpperCase();\n str += ')';\n data.push(str);\n }\n } else if (vr === 'SQ') {\n // sequence\n data = [];\n for (let k = 0; k < element.items.length; ++k) {\n const item = element.items[k];\n const itemData = {};\n const keys = Object.keys(item);\n let sqBitsAllocated = bitsAllocated;\n let sqPixelRepresentation = pixelRepresentation;\n for (let l = 0; l < keys.length; ++l) {\n // check if local bitsAllocated\n // (inside item loop to get interpreted value)\n let dataElement = item[TagKeys.BitsAllocated];\n if (typeof dataElement !== 'undefined' &&\n typeof dataElement.value !== 'undefined') {\n sqBitsAllocated = dataElement.value[0];\n }\n // check if local pixelRepresentation\n // (inside item loop to get interpreted value)\n dataElement = item[TagKeys.PixelRepresentation];\n if (typeof dataElement !== 'undefined' &&\n typeof dataElement.value !== 'undefined') {\n sqPixelRepresentation = dataElement.value[0];\n }\n const subElement = item[keys[l]];\n subElement.value = this.#interpretElement(\n subElement, reader,\n sqPixelRepresentation, sqBitsAllocated);\n delete subElement.tag;\n delete subElement.vl;\n delete subElement.startOffset;\n delete subElement.endOffset;\n itemData[keys[l]] = subElement;\n }\n data.push(itemData);\n }\n // remove non parsed elements\n delete element.items;\n } else if (vr === 'NONE') {\n // no VR -> no data\n data = [];\n } else {\n logger.warn('Unknown VR: ' + vr +\n ' (for tag ' + element.tag.getKey() + ')');\n // empty data...\n data = [];\n }\n\n return data;\n }\n\n /**\n * Interpret the data of a list of elements.\n *\n * @param {DataElements} elements A list of data elements.\n * @param {DataReader} reader The raw data reader.\n * @param {number} pixelRepresentation PixelRepresentation 0->unsigned,\n * 1->signed.\n * @param {number} bitsAllocated Bits allocated.\n */\n #interpret(\n elements, reader,\n pixelRepresentation, bitsAllocated) {\n\n const keys = Object.keys(elements);\n for (let i = 0; i < keys.length; ++i) {\n const element = elements[keys[i]];\n if (typeof element.value === 'undefined') {\n element.value = this.#interpretElement(\n element, reader, pixelRepresentation, bitsAllocated);\n }\n // delete interpretation specific properties\n delete element.tag;\n delete element.vl;\n delete element.startOffset;\n delete element.endOffset;\n }\n }\n\n /**\n * Parse the complete DICOM file (given as input to the class).\n * Fills in the member object 'dataElements'.\n *\n * @param {ArrayBuffer} buffer The input array buffer.\n */\n parse(buffer) {\n let offset = 0;\n let syntax = '';\n let dataElement = null;\n // default readers\n const metaReader = new DataReader(buffer);\n let dataReader = new DataReader(buffer);\n\n // 128 -> 132: magic word\n offset = 128;\n const magicword = this.#decodeString(metaReader.readUint8Array(offset, 4));\n offset += 4 * Uint8Array.BYTES_PER_ELEMENT;\n if (magicword === 'DICM') {\n // 0002, 0000: FileMetaInformationGroupLength (vr='UL')\n dataElement = this.#readDataElement(metaReader, offset, false);\n dataElement.value = this.#interpretElement(dataElement, metaReader);\n // increment offset\n offset = dataElement.endOffset;\n // store the data element\n this.#dataElements[dataElement.tag.getKey()] = dataElement;\n // get meta length\n const metaLength = dataElement.value[0];\n\n // meta elements\n const metaEnd = offset + metaLength;\n while (offset < metaEnd) {\n // get the data element\n dataElement = this.#readDataElement(metaReader, offset, false);\n offset = dataElement.endOffset;\n // store the data element\n this.#dataElements[dataElement.tag.getKey()] = dataElement;\n }\n\n // check the TransferSyntaxUID (has to be there!)\n dataElement = this.#dataElements[TagKeys.TransferSyntax];\n if (typeof dataElement === 'undefined') {\n throw new Error('Not a valid DICOM file (no TransferSyntaxUID found)');\n }\n dataElement.value = this.#interpretElement(dataElement, metaReader);\n syntax = dataElement.value[0];\n\n } else {\n logger.warn('No DICM prefix, trying to guess tansfer syntax.');\n // read first element\n dataElement = this.#readDataElement(dataReader, 0, false);\n // guess transfer syntax\n const tsElement = guessTransferSyntax(dataElement);\n // store\n this.#dataElements[tsElement.tag.getKey()] = tsElement;\n syntax = tsElement.value[0];\n // reset offset\n offset = 0;\n }\n\n // check transfer syntax support\n if (!isReadSupportedTransferSyntax(syntax)) {\n throw new Error('Unsupported DICOM transfer syntax: \\'' + syntax +\n '\\' (' + getTransferSyntaxName(syntax) + ')');\n }\n\n // set implicit flag\n let implicit = false;\n if (isImplicitTransferSyntax(syntax)) {\n implicit = true;\n }\n\n // Big Endian\n if (isBigEndianTransferSyntax(syntax)) {\n dataReader = new DataReader(buffer, false);\n }\n\n // DICOM data elements\n while (offset < buffer.byteLength) {\n // get the data element\n dataElement = this.#readDataElement(dataReader, offset, implicit);\n // increment offset\n offset = dataElement.endOffset;\n // store the data element\n const key = dataElement.tag.getKey();\n if (typeof this.#dataElements[key] === 'undefined') {\n this.#dataElements[key] = dataElement;\n } else {\n logger.warn('Not saving duplicate tag: ' + key);\n }\n }\n\n // safety checks...\n if (isNaN(offset)) {\n throw new Error('Problem while parsing, bad offset');\n }\n if (buffer.byteLength !== offset) {\n logger.warn('Did not reach the end of the buffer: ' +\n offset + ' != ' + buffer.byteLength);\n }\n\n //-------------------------------------------------\n // values needed for data interpretation\n\n // pixel specific\n let pixelRepresentation = 0;\n let bitsAllocated = 16;\n if (typeof this.#dataElements[TagKeys.PixelData] !== 'undefined') {\n // PixelRepresentation 0->unsigned, 1->signed\n dataElement = this.#dataElements[TagKeys.PixelRepresentation];\n if (typeof dataElement !== 'undefined') {\n dataElement.value = this.#interpretElement(dataElement, dataReader);\n pixelRepresentation = dataElement.value[0];\n } else {\n logger.warn(\n 'Reading DICOM pixel data with default pixelRepresentation.');\n }\n\n // BitsAllocated\n dataElement = this.#dataElements[TagKeys.BitsAllocated];\n if (typeof dataElement !== 'undefined') {\n dataElement.value = this.#interpretElement(dataElement, dataReader);\n bitsAllocated = dataElement.value[0];\n } else {\n logger.warn('Reading DICOM pixel data with default bitsAllocated.');\n }\n }\n\n // default character set\n if (typeof this.#defaultCharacterSet !== 'undefined') {\n this.setDecoderCharacterSet(this.#defaultCharacterSet);\n }\n\n // SpecificCharacterSet\n dataElement = this.#dataElements[TagKeys.SpecificCharacterSet];\n if (typeof dataElement !== 'undefined') {\n dataElement.value = this.#interpretElement(dataElement, dataReader);\n let charSetTerm;\n if (dataElement.value.length === 1) {\n charSetTerm = dataElement.value[0];\n } else {\n charSetTerm = dataElement.value[1];\n logger.warn('Unsupported character set with code extensions: \\'' +\n charSetTerm + '\\'.');\n }\n this.setDecoderCharacterSet(getUtfLabel(charSetTerm));\n }\n\n // interpret the dicom elements\n this.#interpret(\n this.#dataElements, dataReader,\n pixelRepresentation, bitsAllocated\n );\n\n // handle fragmented pixel buffer\n // Reference: http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_8.2.html\n // (third note, \"Depending on the transfer syntax...\")\n dataElement = this.#dataElements[TagKeys.PixelData];\n if (typeof dataElement !== 'undefined') {\n if (dataElement.undefinedLength) {\n let numberOfFrames = 1;\n if (typeof this.#dataElements[TagKeys.NumberOfFrames] !== 'undefined') {\n numberOfFrames = Number(\n this.#dataElements[TagKeys.NumberOfFrames].value[0]\n );\n }\n const pixItems = dataElement.value;\n if (pixItems.length > 1 && pixItems.length > numberOfFrames) {\n // concatenate pixel data items\n // concat does not work on typed arrays\n //this.pixelBuffer = this.pixelBuffer.concat( dataElement.data );\n // manual concat...\n const nItemPerFrame = pixItems.length / numberOfFrames;\n const newPixItems = [];\n let index = 0;\n for (let f = 0; f < numberOfFrames; ++f) {\n index = f * nItemPerFrame;\n // calculate the size of a frame\n let size = 0;\n for (let i = 0; i < nItemPerFrame; ++i) {\n size += pixItems[index + i].length;\n }\n // create new buffer\n const newBuffer = new pixItems[0].constructor(size);\n // fill new buffer\n let fragOffset = 0;\n for (let j = 0; j < nItemPerFrame; ++j) {\n newBuffer.set(pixItems[index + j], fragOffset);\n fragOffset += pixItems[index + j].length;\n }\n newPixItems[f] = newBuffer;\n }\n // store as pixel data\n dataElement.value = newPixItems;\n }\n }\n }\n }\n\n} // class DicomParser\n","import {logger} from './logger';\n\n/**\n * ListenerHandler class: handles add/removing and firing listeners.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/EventTarget#example}.\n */\nexport class ListenerHandler {\n /**\n * Listeners.\n *\n * @type {object}\n */\n #listeners = {};\n\n /**\n * Add an event listener.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type, will be called with the fired event.\n */\n add(type, callback) {\n // create array if not present\n if (typeof this.#listeners[type] === 'undefined') {\n this.#listeners[type] = [];\n }\n // add callback to listeners array\n this.#listeners[type].push(callback);\n }\n\n /**\n * Remove an event listener.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type.\n */\n remove(type, callback) {\n // check if the type is present\n if (typeof this.#listeners[type] === 'undefined') {\n return;\n }\n // remove from listeners array\n let nFound = 0;\n for (let i = 0; i < this.#listeners[type].length; ++i) {\n if (this.#listeners[type][i] === callback) {\n ++nFound;\n this.#listeners[type].splice(i, 1);\n }\n }\n if (nFound === 0) {\n logger.debug('No callback found on remove listener for type ' + type);\n }\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n fireEvent = (event) => {\n // check if they are listeners for the event type\n if (typeof this.#listeners[event.type] === 'undefined') {\n return;\n }\n // fire events from a copy of the listeners array\n // to avoid interference from possible add/remove\n const stack = this.#listeners[event.type].slice();\n for (let i = 0; i < stack.length; ++i) {\n stack[i](event);\n }\n };\n}\n","import {Index} from '../math/index';\nimport {Point2D} from '../math/point';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {Point} from '../math/point';\nimport {Matrix33} from '../math/matrix';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get an simple iterator for a given range for a one component data.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * @param {number} [increment] The increment between indicies (default=1).\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function simpleRange(dataAccessor, start, end, increment) {\n if (typeof increment === 'undefined') {\n increment = 1;\n }\n let nextIndex = start;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n nextIndex += increment;\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range for a one component data.\n *\n * Using 'maxIter' and not an 'end' index since it fails in some edge cases\n * (for ex coronal2, ie zxy).\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start Zero-based index at which to start the iteration.\n * @param {number} maxIter The maximum number of iterations.\n * @param {number} increment Increment between indicies.\n * @param {number} blockMaxIter Number of applied increment after which\n * blockIncrement is applied.\n * @param {number} blockIncrement Increment after blockMaxIter is reached,\n * the value is from block start to the next block start.\n * @param {boolean} reverse1 If true, loop from end to start.\n * WARN: don't forget to set the value of start as the last index!\n * @param {boolean} reverse2 If true, loop from block end to block start.\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function range(dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2) {\n if (typeof reverse1 === 'undefined') {\n reverse1 = false;\n }\n if (typeof reverse2 === 'undefined') {\n reverse2 = false;\n }\n\n // first index of the iteration\n let nextIndex = start;\n // adapt first index and increments to reverse values\n if (reverse1) {\n blockIncrement *= -1;\n if (reverse2) {\n // start at end of line\n nextIndex -= (blockMaxIter - 1) * increment;\n } else {\n increment *= -1;\n }\n } else {\n if (reverse2) {\n // start at end of line\n nextIndex += (blockMaxIter - 1) * increment;\n increment *= -1;\n }\n }\n const finalBlockIncrement = blockIncrement - blockMaxIter * increment;\n\n // counters\n let mainCount = 0;\n let blockCount = 0;\n // result\n return {\n next: function () {\n if (mainCount < maxIter) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n nextIndex += increment;\n ++mainCount;\n ++blockCount;\n if (blockCount === blockMaxIter) {\n blockCount = 0;\n nextIndex += finalBlockIncrement;\n }\n return result;\n }\n return {\n done: true,\n index: nextIndex\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range with bounds (for a one component data).\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * @param {number} increment The increment between indicies.\n * @param {number} regionSize The size of the region to iterate through.\n * @param {number} regionOffset The offset between regions.\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function rangeRegion(\n dataAccessor, start, end, increment, regionSize, regionOffset) {\n let nextIndex = start;\n let regionElementCount = 0;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n regionElementCount += 1;\n nextIndex += increment;\n if (regionElementCount === regionSize) {\n regionElementCount = 0;\n nextIndex += regionOffset;\n }\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range with bounds (for a one component data).\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * @param {number} increment The increment between indicies.\n * @param {number[][]} regions An array of regions: [off0, size, off1].\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function rangeRegions(\n dataAccessor, start, end, increment, regions) {\n let nextIndex = start;\n let regionCount = 0;\n let regionElementCount = 0;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: dataAccessor(nextIndex),\n done: false,\n index: nextIndex\n };\n regionElementCount += 1;\n nextIndex += increment;\n if (regionElementCount === regions[regionCount][1]) {\n regionElementCount = 0;\n // off1 of current group\n nextIndex += regions[regionCount][2];\n regionCount += 1;\n // off0 of next group\n if (regionCount < regions.length) {\n nextIndex += regions[regionCount][0];\n }\n }\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range for a 3 components data.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start The start of the range (included).\n * @param {number} end The end of the range (excluded).\n * (end - start) needs to be a multiple of 3...\n * @param {number} increment The increment between indicies (default=1).\n * @param {boolean} isPlanar A flag to know if the data is planar\n * (RRRR...GGGG...BBBB...) or not (RGBRGBRGBRGB...), defaults to false.\n * @returns {object} A 3 components iterator folowing the iterator and iterable\n * protocol, the value is an array of size 3 with each component.\n */\nexport function simpleRange3d(\n dataAccessor, start, end, increment, isPlanar) {\n if (typeof increment === 'undefined') {\n increment = 1;\n }\n if (typeof isPlanar === 'undefined') {\n isPlanar = false;\n }\n let nextIndex = start;\n let componentIncrement = 1;\n if (isPlanar) {\n componentIncrement = (end - start) / 3;\n } else {\n increment *= 3;\n }\n let nextIndex1 = nextIndex + componentIncrement;\n let nextIndex2 = nextIndex + 2 * componentIncrement;\n\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n const result = {\n value: [\n dataAccessor(nextIndex),\n dataAccessor(nextIndex1),\n dataAccessor(nextIndex2)\n ],\n done: false,\n index: [nextIndex, nextIndex1, nextIndex2]\n };\n nextIndex += increment;\n nextIndex1 += increment;\n nextIndex2 += increment;\n return result;\n }\n return {\n done: true,\n index: [end]\n };\n }\n };\n}\n\n/**\n * Get an iterator for a given range for a 3 components data.\n *\n * Using 'maxIter' and not an 'end' index since it fails in some edge cases\n * (for ex coronal2, ie zxy).\n *\n * @param {Function} dataAccessor Function to access data.\n * @param {number} start Zero-based index at which to start the iteration.\n * @param {number} maxIter The maximum number of iterations.\n * @param {number} increment Increment between indicies.\n * @param {number} blockMaxIter Number of applied increment after which\n * blockIncrement is applied.\n * @param {number} blockIncrement Increment after blockMaxIter is reached,\n * the value is from block start to the next block start.\n * @param {boolean} reverse1 If true, loop from end to start.\n * WARN: don't forget to set the value of start as the last index!\n * @param {boolean} reverse2 If true, loop from block end to block start.\n * @param {boolean} isPlanar A flag to know if the data is planar\n * (RRRR...GGGG...BBBB...) or not (RGBRGBRGBRGB...), defaults to false.\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function range3d(dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2, isPlanar) {\n const iters = [];\n if (isPlanar) {\n iters.push(range(\n dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + maxIter * increment, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + 2 * maxIter * increment, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n } else {\n increment *= 3;\n blockIncrement *= 3;\n iters.push(range(\n dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + 1, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n iters.push(range(\n dataAccessor, start + 2, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2\n ));\n }\n\n // result\n return {\n next: function () {\n const r0 = iters[0].next();\n const r1 = iters[1].next();\n const r2 = iters[2].next();\n if (!r0.done) {\n return {\n value: [\n r0.value,\n r1.value,\n r2.value\n ],\n done: false,\n index: [\n r0.index,\n r1.index,\n r2.index\n ]\n };\n }\n return {\n done: true,\n index: r2.index\n };\n }\n };\n}\n\n/**\n * Get a list of values for a given iterator.\n *\n * @param {object} iterator The iterator to use to loop through data.\n * @returns {Array} The list of values.\n */\nexport function getIteratorValues(iterator) {\n const values = [];\n let ival = iterator.next();\n while (!ival.done) {\n values.push(ival.value);\n ival = iterator.next();\n }\n return values;\n}\n\n/**\n * Get a slice index iterator.\n *\n * @param {Image} image The image to parse.\n * @param {Index} position The current position.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {Matrix33} viewOrientation The view orientation.\n * @returns {object} The slice iterator.\n */\nexport function getSliceIterator(\n image, position, isRescaled, viewOrientation) {\n const size = image.getGeometry().getSize();\n // zero-ify non direction index\n let dirMax2Index = 2;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n dirMax2Index = viewOrientation.getColAbsMax(2).index;\n }\n const posValues = position.getValues();\n // keep the main direction and any other than 3D\n const indexFilter = function (element, index) {\n return (index === dirMax2Index || index > 2) ? element : 0;\n };\n const posStart = new Index(posValues.map(indexFilter));\n let start = size.indexToOffset(posStart);\n\n // default to non rescaled data\n if (typeof isRescaled === 'undefined') {\n isRescaled = false;\n }\n let dataAccessor = null;\n if (isRescaled) {\n dataAccessor = function (offset) {\n return image.getRescaledValueAtOffset(offset);\n };\n } else {\n dataAccessor = function (offset) {\n return image.getValueAtOffset(offset);\n };\n }\n\n const ncols = size.get(0);\n const nrows = size.get(1);\n const nslices = size.get(2);\n let sliceSize = size.getDimSize(2);\n\n const ncomp = image.getNumberOfComponents();\n const isPlanar = image.getPlanarConfiguration() === 1;\n const getRange = function (\n dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2) {\n if (ncomp === 1) {\n return range(dataAccessor, start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2);\n } else if (ncomp === 3) {\n return range3d(dataAccessor, 3 * start, maxIter, increment,\n blockMaxIter, blockIncrement, reverse1, reverse2, isPlanar);\n }\n };\n\n let rangeObj = null;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n const dirMax0 = viewOrientation.getColAbsMax(0);\n const dirMax2 = viewOrientation.getColAbsMax(2);\n\n // default reverse\n const reverse1 = false;\n const reverse2 = false;\n\n let maxIter = null;\n if (dirMax2.index === 2) {\n // axial\n maxIter = ncols * nrows;\n if (dirMax0.index === 0) {\n // xyz\n rangeObj = getRange(dataAccessor,\n start, maxIter, 1, ncols, ncols, reverse1, reverse2);\n } else {\n // yxz\n rangeObj = getRange(dataAccessor,\n start, maxIter, ncols, nrows, 1, reverse1, reverse2);\n }\n } else if (dirMax2.index === 0) {\n // sagittal\n maxIter = nslices * nrows;\n if (dirMax0.index === 1) {\n // yzx\n rangeObj = getRange(dataAccessor,\n start, maxIter, ncols, nrows, sliceSize, reverse1, reverse2);\n } else {\n // zyx\n rangeObj = getRange(dataAccessor,\n start, maxIter, sliceSize, nslices, ncols, reverse1, reverse2);\n }\n } else if (dirMax2.index === 1) {\n // coronal\n maxIter = nslices * ncols;\n if (dirMax0.index === 0) {\n // xzy\n rangeObj = getRange(dataAccessor,\n start, maxIter, 1, ncols, sliceSize, reverse1, reverse2);\n } else {\n // zxy\n rangeObj = getRange(dataAccessor,\n start, maxIter, sliceSize, nslices, 1, reverse1, reverse2);\n }\n } else {\n throw new Error('Unknown direction: ' + dirMax2.index);\n }\n } else {\n if (image.getNumberOfComponents() === 1) {\n rangeObj = simpleRange(dataAccessor, start, start + sliceSize);\n } else if (image.getNumberOfComponents() === 3) {\n // 3 times bigger...\n start *= 3;\n sliceSize *= 3;\n rangeObj = simpleRange3d(\n dataAccessor, start, start + sliceSize, 1, isPlanar);\n } else {\n throw new Error('Unsupported number of components: ' +\n image.getNumberOfComponents());\n }\n }\n\n return rangeObj;\n}\n\n/**\n * Get a slice index iterator for a rectangular region.\n *\n * @param {Image} image The image to parse.\n * @param {Index} index The current position.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {Point2D} min The minimum position (optional).\n * @param {Point2D} max The maximum position (optional).\n * @returns {object} The slice iterator.\n */\nexport function getRegionSliceIterator(\n image, index, isRescaled, min, max) {\n if (image.getNumberOfComponents() !== 1) {\n throw new Error('Unsupported number of components for region iterator: ' +\n image.getNumberOfComponents());\n }\n\n // default to non rescaled data\n if (typeof isRescaled === 'undefined') {\n isRescaled = false;\n }\n let dataAccessor = null;\n if (isRescaled) {\n dataAccessor = function (offset) {\n return image.getRescaledValueAtOffset(offset);\n };\n } else {\n dataAccessor = function (offset) {\n return image.getValueAtOffset(offset);\n };\n }\n\n const size = image.getGeometry().getSize();\n if (typeof min === 'undefined') {\n min = new Point2D(0, 0);\n }\n if (typeof max === 'undefined') {\n max = new Point2D(\n size.get(0) - 1,\n size.get(1)\n );\n }\n // position to pixel for max: extra X is ok, remove extra Y\n const startOffset = size.indexToOffset(index.getWithNew2D(\n min.getX(), min.getY()\n ));\n const endOffset = size.indexToOffset(index.getWithNew2D(\n max.getX(), max.getY() - 1\n ));\n\n // minimum 1 column\n const rangeNumberOfColumns = Math.max(1, max.getX() - min.getX());\n const rowIncrement = size.get(0) - rangeNumberOfColumns;\n\n return rangeRegion(\n dataAccessor, startOffset, endOffset + 1,\n 1, rangeNumberOfColumns, rowIncrement);\n}\n\n/**\n * Get a slice index iterator for a rectangular region.\n *\n * @param {Image} image The image to parse.\n * @param {Index} index The current position.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {number[][][]} regions An array of [x, y] pairs (min, max).\n * @returns {object|undefined} The slice iterator.\n */\nexport function getVariableRegionSliceIterator(\n image, index, isRescaled, regions) {\n if (image.getNumberOfComponents() !== 1) {\n throw new Error('Unsupported number of components for region iterator: ' +\n image.getNumberOfComponents());\n }\n\n // default to non rescaled data\n if (typeof isRescaled === 'undefined') {\n isRescaled = false;\n }\n let dataAccessor = null;\n if (isRescaled) {\n dataAccessor = function (offset) {\n return image.getRescaledValueAtOffset(offset);\n };\n } else {\n dataAccessor = function (offset) {\n return image.getValueAtOffset(offset);\n };\n }\n\n const size = image.getGeometry().getSize();\n\n const offsetRegions = [];\n let region;\n let min = null;\n let max = null;\n let regionIndex = null;\n for (let i = 0; i < regions.length; ++i) {\n region = regions[i];\n const width = region[1][0] - region[0][0];\n if (width !== 0) {\n regionIndex = i;\n if (!min) {\n min = region[0];\n }\n offsetRegions.push([\n region[0][0],\n width,\n size.get(0) - region[1][0]\n ]);\n }\n }\n if (regionIndex !== null) {\n max = regions[regionIndex][1];\n }\n\n // exit if no offsets\n if (offsetRegions.length === 0) {\n return undefined;\n }\n\n const startOffset = size.indexToOffset(index.getWithNew2D(\n min[0], min[1]\n ));\n const endOffset = size.indexToOffset(index.getWithNew2D(\n max[0], max[1]\n ));\n\n return rangeRegions(\n dataAccessor, startOffset, endOffset + 1,\n 1, offsetRegions);\n}\n\n/**\n * Get a colour iterator. The input array defines the colours and\n * their start index.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols}.\n *\n * @param {Array} colours An array of {index, colour} pairs.\n * @param {number} end The end of the range (excluded).\n * @returns {object} An iterator folowing the iterator and iterable protocol.\n */\nexport function colourRange(colours, end) {\n let nextIndex = 0;\n let nextColourIndex = 0;\n // result\n return {\n next: function () {\n if (nextIndex < end) {\n if (nextColourIndex + 1 < colours.length &&\n nextIndex >= colours[nextColourIndex + 1].index) {\n ++nextColourIndex;\n }\n const result = {\n value: colours[nextColourIndex].colour,\n done: false,\n index: nextIndex\n };\n ++nextIndex;\n return result;\n }\n return {\n done: true,\n index: end\n };\n }\n };\n}\n","/**\n * Rescale Slope and Intercept.\n */\nexport class RescaleSlopeAndIntercept {\n\n /**\n * The slope.\n *\n * @type {number}\n */\n #slope;\n\n /**\n * The intercept.\n *\n * @type {number}\n */\n #intercept;\n\n /**\n * @param {number} slope The slope of the RSI.\n * @param {number} intercept The intercept of the RSI.\n */\n constructor(slope, intercept) {\n /*// Check the rescale slope.\n if(typeof(slope) === 'undefined') {\n slope = 1;\n }\n // Check the rescale intercept.\n if(typeof(intercept) === 'undefined') {\n intercept = 0;\n }*/\n this.#slope = slope;\n this.#intercept = intercept;\n }\n\n /**\n * Get the slope of the RSI.\n *\n * @returns {number} The slope of the RSI.\n */\n getSlope() {\n return this.#slope;\n }\n\n /**\n * Get the intercept of the RSI.\n *\n * @returns {number} The intercept of the RSI.\n */\n getIntercept() {\n return this.#intercept;\n }\n\n /**\n * Apply the RSI on an input value.\n *\n * @param {number} value The input value.\n * @returns {number} The value to rescale.\n */\n apply(value) {\n return value * this.#slope + this.#intercept;\n }\n\n /**\n * Check for RSI equality.\n *\n * @param {RescaleSlopeAndIntercept} rhs The other RSI to compare to.\n * @returns {boolean} True if both RSI are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n typeof rhs !== 'undefined' &&\n this.getSlope() === rhs.getSlope() &&\n this.getIntercept() === rhs.getIntercept();\n }\n\n /**\n * Is this RSI an ID RSI.\n *\n * @returns {boolean} True if the RSI has a slope of 1 and no intercept.\n */\n isID() {\n return (this.getSlope() === 1 && this.getIntercept() === 0);\n }\n\n} // class RescaleSlopeAndIntercept\n","import {Index} from '../math/index';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Immutable Size class.\n * Warning: the input array is NOT cloned, modifying it will\n * modify the index values.\n */\nexport class Size {\n\n /**\n * The size values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * @param {number[]} values The size values.\n */\n constructor(values) {\n if (!values || typeof values === 'undefined') {\n throw new Error('Cannot create size with no values.');\n }\n if (values.length === 0) {\n throw new Error('Cannot create size with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val) && val !== 0;\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create size with non number or zero values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the size value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number} The value.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the index.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the size.\n *\n * @returns {string} The Size as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this index.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check if a dimension exists and has more than one element.\n *\n * @param {number} dimension The dimension to check.\n * @returns {boolean} True if the size is more than one.\n */\n moreThanOne(dimension) {\n return this.length() >= dimension + 1 && this.get(dimension) !== 1;\n }\n\n /**\n * Check if the associated data is scrollable in 3D.\n *\n * @param {Matrix33} [viewOrientation] The orientation matrix.\n * @returns {boolean} True if scrollable.\n */\n canScroll3D(viewOrientation) {\n let dimension = 2;\n if (typeof viewOrientation !== 'undefined') {\n dimension = viewOrientation.getThirdColMajorDirection();\n }\n return this.moreThanOne(dimension);\n }\n\n /**\n * Check if the associated data is scrollable: either in 3D or\n * in other directions.\n *\n * @param {Matrix33} viewOrientation The orientation matrix.\n * @returns {boolean} True if scrollable.\n */\n canScroll(viewOrientation) {\n let canScroll = this.canScroll3D(viewOrientation);\n // check possible other dimensions\n for (let i = 3; i < this.length(); ++i) {\n canScroll = canScroll || this.moreThanOne(i);\n }\n return canScroll;\n }\n\n /**\n * Get the size of a given dimension.\n *\n * @param {number} dimension The dimension.\n * @param {number} [start] Optional start dimension to start counting from.\n * @returns {number} The size.\n */\n getDimSize(dimension, start) {\n if (dimension > this.length()) {\n return null;\n }\n if (typeof start === 'undefined') {\n start = 0;\n } else {\n if (start < 0 || start > dimension) {\n throw new Error('Invalid start value for getDimSize');\n }\n }\n let size = 1;\n for (let i = start; i < dimension; ++i) {\n size *= this.get(i);\n }\n return size;\n }\n\n /**\n * Get the total size.\n *\n * @param {number} [start] Optional start dimension to base the offset on.\n * @returns {number} The total size.\n */\n getTotalSize(start) {\n return this.getDimSize(this.length(), start);\n }\n\n /**\n * Check for equality.\n *\n * @param {Size} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n const length = this.length();\n if (length !== rhs.length()) {\n return false;\n }\n // check values\n for (let i = 0; i < length; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Check that an index is within bounds.\n *\n * @param {Index} index The index to check.\n * @param {number[]} dirs Optional list of directions to check.\n * @returns {boolean} True if the given coordinates are within bounds.\n */\n isInBounds(index, dirs) {\n // check input\n if (!index) {\n return false;\n }\n // check length\n const length = this.length();\n if (length !== index.length()) {\n return false;\n }\n // create dirs if not there\n if (typeof dirs === 'undefined') {\n dirs = [];\n for (let j = 0; j < length; ++j) {\n dirs.push(j);\n }\n } else {\n for (let k = 0; k < length; ++k) {\n if (dirs[k] > length - 1) {\n throw new Error('Wrong input dir value: ' + dirs[k]);\n }\n }\n }\n // check values is 0 <= v < size\n const inBound = function (value, size) {\n return value >= 0 && value < size;\n };\n // check\n for (let i = 0; i < dirs.length; ++i) {\n if (!inBound(index.get(dirs[i]), this.get(dirs[i]))) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Convert an index to an offset in memory.\n *\n * @param {Index} index The index to convert.\n * @param {number} [start] Optional start dimension to base the offset on.\n * @returns {number} The offset.\n */\n indexToOffset(index, start) {\n // TODO check for equality\n if (index.length() < this.length()) {\n throw new Error('Incompatible index and size length');\n }\n if (typeof start === 'undefined') {\n start = 0;\n } else {\n if (start < 0 || start > this.length() - 1) {\n throw new Error('Invalid start value for indexToOffset');\n }\n }\n let offset = 0;\n for (let i = start; i < this.length(); ++i) {\n offset += index.get(i) * this.getDimSize(i, start);\n }\n return offset;\n }\n\n /**\n * Convert an offset in memory to an index.\n *\n * @param {number} offset The offset to convert.\n * @returns {Index} The index.\n */\n offsetToIndex(offset) {\n const values = new Array(this.length());\n let off = offset;\n let dimSize = 0;\n for (let i = this.length() - 1; i > 0; --i) {\n dimSize = this.getDimSize(i);\n values[i] = Math.floor(off / dimSize);\n off = off - values[i] * dimSize;\n }\n values[0] = off;\n return new Index(values);\n }\n\n /**\n * Get the 2D base of this size.\n *\n * @returns {Scalar2D} The 2D base [0,1] as {x,y}.\n */\n get2D() {\n return {\n x: this.get(0),\n y: this.get(1)\n };\n }\n\n} // Size class\n","/**\n * Statistics storage class.\n * 'simple' statistics do not include median, p25 nor p75.\n */\nexport class Statistics {\n /**\n * Minimum.\n *\n * @type {number}\n */\n min;\n /**\n * Maximum.\n *\n * @type {number}\n */\n max;\n /**\n * Mean.\n *\n * @type {number}\n */\n mean;\n /**\n * Standard deviation.\n *\n * @type {number}\n */\n stdDev;\n /**\n * Median.\n *\n * @type {number|undefined}\n */\n median;\n /**\n * 25th percentile.\n *\n * @type {number|undefined}\n */\n p25;\n /**\n * 75th percentile.\n *\n * @type {number|undefined}\n */\n p75;\n\n /**\n * @param {number} min The minimum.\n * @param {number} max The maxnimum.\n * @param {number} mean The mean.\n * @param {number} stdDev The standard deviation.\n */\n constructor(min, max, mean, stdDev) {\n this.min = min;\n this.max = max;\n this.mean = mean;\n this.stdDev = stdDev;\n }\n}\n\n/**\n * Get statistics on an input array of number.\n * Note: could use {@link https://github.com/tmcw/simple-statistics}.\n *\n * @param {number[]} values The array of values to extract stats from.\n * @param {string[]} flags A list of stat value names to calculate.\n * @returns {Statistics} A statistics object.\n */\nexport function getStats(values, flags) {\n if (includesFullStatsFlags(flags)) {\n return getFullStats(values);\n } else {\n return getBasicStats(values);\n }\n}\n\n/**\n * Does the input flag list contain a full stat element?\n *\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {boolean} True if one of the flags is a full stat flag.\n */\nfunction includesFullStatsFlags(flags) {\n return typeof flags !== 'undefined' &&\n flags !== null &&\n (flags.includes('median') ||\n flags.includes('p25') ||\n flags.includes('p75'));\n}\n\n/**\n * Get simple stats: minimum, maximum, mean and standard deviation\n * of an array of values.\n *\n * @param {number[]} values The array of values to extract stats from.\n * @returns {Statistics} Simple statistics (no median, p25 nor p75).\n */\nexport function getBasicStats(values) {\n let min = values[0];\n let max = min;\n let sum = 0;\n let sumSqr = 0;\n let val = 0;\n const length = values.length;\n for (let i = 0; i < length; ++i) {\n val = values[i];\n if (val < min) {\n min = val;\n } else if (val > max) {\n max = val;\n }\n sum += val;\n sumSqr += val * val;\n }\n\n const mean = sum / length;\n // see http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance\n let variance = sumSqr / length - mean * mean;\n if (variance < 0) {\n variance = 0;\n }\n const stdDev = Math.sqrt(variance);\n\n return new Statistics(min, max, mean, stdDev);\n}\n\n/**\n * Get full stats: minimum, maximum, mean, standard deviation, median, 25%\n * and 75% percentile of an array of values.\n *\n * @param {number[]} values The array of values to extract stats from.\n * @returns {Statistics} Complete statistics (includes median, p25 and p75).\n */\nfunction getFullStats(values) {\n // get basic stats\n const stats = getBasicStats(values);\n\n // sort array... can get slow...\n values.sort(function (a, b) {\n return a - b;\n });\n\n stats.median = getPercentile(values, 0.5);\n stats.p25 = getPercentile(values, 0.25);\n stats.p75 = getPercentile(values, 0.75);\n\n return stats;\n}\n\n/**\n * Get an arrays' percentile. Uses linear interpolation for percentiles\n * that lie between data points.\n * See: {@link https://en.wikipedia.org/wiki/Percentile} (second variant interpolation).\n *\n * @param {number[]} values The sorted array of values.\n * @param {number} ratio The percentile ratio [0-1].\n * @returns {number} The percentile.\n */\nfunction getPercentile(values, ratio) {\n // check input\n if (values.length === 0) {\n throw new Error('Empty array provided for percentile calculation.');\n }\n if (ratio < 0 || ratio > 1) {\n throw new Error(\n 'Invalid ratio provided for percentile calculation: ' + ratio);\n }\n // return min for ratio=0 amd max for ratio=1\n if (ratio === 0) {\n return values[0];\n } else if (ratio === 1) {\n return values[values.length - 1];\n }\n // general case: interpolate between indices if needed\n const i = (values.length - 1) * ratio;\n const i0 = Math.floor(i);\n const v0 = values[i0];\n const v1 = values[i0 + 1];\n return v0 + (v1 - v0) * (i - i0);\n}\n\n/**\n * Unique ID generator.\n *\n * See {@link http://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript}\n * and this {@link http://stackoverflow.com/a/13403498 answer}.\n *\n * @returns {string} A unique ID.\n */\nexport function guid() {\n return Math.random().toString(36).substring(2, 15);\n}\n\n/**\n * Number range.\n */\nexport class NumberRange {\n /**\n * @type {number}\n */\n min;\n /**\n * @type {number}\n */\n max;\n /**\n * @param {number} min The minimum.\n * @param {number} max The maximum.\n */\n constructor(min, max) {\n this.min = min;\n this.max = max;\n }\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Immutable Spacing class.\n * Warning: the input array is NOT cloned, modifying it will\n * modify the index values.\n */\nexport class Spacing {\n\n /**\n * The spacing values.\n *\n * @type {number[]}\n */\n #values;\n\n /**\n * @param {number[]} values The spacing values.\n */\n constructor(values) {\n if (!values || typeof values === 'undefined') {\n throw new Error('Cannot create spacing with no values.');\n }\n if (values.length === 0) {\n throw new Error('Cannot create spacing with empty values.');\n }\n const valueCheck = function (val) {\n return !isNaN(val) && val !== 0;\n };\n if (!values.every(valueCheck)) {\n throw new Error('Cannot create spacing with non number or zero values.');\n }\n this.#values = values;\n }\n\n /**\n * Get the spacing value at the given array index.\n *\n * @param {number} i The index to get.\n * @returns {number} The value.\n */\n get(i) {\n return this.#values[i];\n }\n\n /**\n * Get the length of the spacing.\n *\n * @returns {number} The length.\n */\n length() {\n return this.#values.length;\n }\n\n /**\n * Get a string representation of the spacing.\n *\n * @returns {string} The spacing as a string.\n */\n toString() {\n return '(' + this.#values.toString() + ')';\n }\n\n /**\n * Get the values of this spacing.\n *\n * @returns {number[]} The array of values.\n */\n getValues() {\n return this.#values.slice();\n }\n\n /**\n * Check for equality.\n *\n * @param {Spacing} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n // check input\n if (!rhs) {\n return false;\n }\n // check length\n const length = this.length();\n if (length !== rhs.length()) {\n return false;\n }\n // check values\n for (let i = 0; i < length; ++i) {\n if (this.get(i) !== rhs.get(i)) {\n return false;\n }\n }\n // seems ok!\n return true;\n }\n\n /**\n * Get the 2D base of this size.\n *\n * @returns {Scalar2D} The 2D base [col,row] as {x,y}.\n */\n get2D() {\n return {\n x: this.get(0),\n y: this.get(1)\n };\n }\n\n} // Spacing class\n","import {\n getIdentityMat33,\n REAL_WORLD_EPSILON\n} from '../math/matrix';\nimport {Point3D, Point} from '../math/point';\nimport {Vector3D} from '../math/vector';\nimport {Index} from '../math/index';\nimport {getBasicStats} from '../math/stats';\nimport {precisionRound} from '../utils/string';\nimport {logger} from '../utils/logger';\nimport {Size} from './size';\nimport {Spacing} from './spacing';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\n/* eslint-enable no-unused-vars */\n\n/**\n * 2D/3D Geometry class.\n */\nexport class Geometry {\n\n /**\n * Array of origins.\n *\n * @type {Point3D[]}\n */\n #origins;\n\n /**\n * Data size.\n *\n * @type {Size}\n */\n #size;\n\n /**\n * Data spacing.\n *\n * @type {Spacing}\n */\n #spacing;\n\n /**\n * Local helper object for time points.\n *\n * @type {Object}\n */\n #timeOrigins = {};\n\n /**\n * Initial time index.\n *\n * @type {number}\n */\n #initialTime;\n\n /**\n * Data orientation.\n *\n * @type {Matrix33}\n */\n #orientation = getIdentityMat33();\n\n /**\n * Flag to know if new origins were added.\n *\n * @type {boolean}\n */\n #newOrigins = false;\n\n /**\n * @param {Point3D} origin The object origin (a 3D point).\n * @param {Size} size The object size.\n * @param {Spacing} spacing The object spacing.\n * @param {Matrix33} [orientation] The object orientation (3*3 matrix,\n * default to 3*3 identity).\n * @param {number} [time] Optional time index.\n */\n constructor(origin, size, spacing, orientation, time) {\n this.#origins = [origin];\n this.#size = size;\n this.#spacing = spacing;\n if (typeof time !== 'undefined') {\n this.#initialTime = time;\n this.#timeOrigins[time] = [origin];\n }\n // check input orientation\n if (typeof orientation !== 'undefined') {\n this.#orientation = orientation;\n }\n }\n\n /**\n * Get the time value that was passed at construction.\n *\n * @returns {number} The time value.\n */\n getInitialTime() {\n return this.#initialTime;\n }\n\n /**\n * Get the total number of slices.\n * Can be different from what is stored in the size object\n * during a volume with time points creation process.\n *\n * @returns {number} The total count.\n */\n getCurrentTotalNumberOfSlices() {\n const keys = Object.keys(this.#timeOrigins);\n if (keys.length === 0) {\n return this.#origins.length;\n }\n let count = 0;\n for (let i = 0; i < keys.length; ++i) {\n count += this.#timeOrigins[keys[i]].length;\n }\n return count;\n }\n\n /**\n * Check if a time point has associated slices.\n *\n * @param {number} time The time point to check.\n * @returns {boolean} True if slices are present.\n */\n hasSlicesAtTime(time) {\n return typeof this.#timeOrigins[time] !== 'undefined';\n }\n\n /**\n * Get the number of slices stored for time points preceding\n * the input one.\n *\n * @param {number} time The time point to check.\n * @returns {number|undefined} The count.\n */\n getCurrentNumberOfSlicesBeforeTime(time) {\n const keys = Object.keys(this.#timeOrigins);\n if (keys.length === 0) {\n return undefined;\n }\n let count = 0;\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n if (parseInt(key, 10) === time) {\n break;\n }\n count += this.#timeOrigins[key].length;\n }\n return count;\n }\n\n /**\n * Get the object origin.\n * This should be the lowest origin to ease calculations (?).\n *\n * @returns {Point3D} The object origin.\n */\n getOrigin() {\n return this.#origins[0];\n }\n\n /**\n * Get the object origins.\n *\n * @returns {Point3D[]} The object origins.\n */\n getOrigins() {\n return this.#origins;\n }\n\n /**\n * Check if a point is in the origin list.\n *\n * @param {Point3D} point3D The point to check.\n * @param {number} tol The comparison tolerance\n * default to Number.EPSILON.\n * @returns {boolean} True if in list.\n */\n includesOrigin(point3D, tol) {\n for (let i = 0; i < this.#origins.length; ++i) {\n if (this.#origins[i].isSimilar(point3D, tol)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Get the object size.\n * Warning: the size comes as stored in DICOM, meaning that it could\n * be oriented.\n *\n * @param {Matrix33} [viewOrientation] The view orientation (optional).\n * @returns {Size} The object size.\n */\n getSize(viewOrientation) {\n let res = this.#size;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n let values = getOrientedArray3D(\n [\n this.#size.get(0),\n this.#size.get(1),\n this.#size.get(2)\n ],\n viewOrientation);\n values = values.map(Math.abs);\n res = new Size(values.concat(this.#size.getValues().slice(3)));\n }\n return res;\n }\n\n /**\n * Calculate slice spacing from origins and replace current\n * if needed.\n */\n #updateSliceSpacing() {\n const geoSliceSpacing = getSliceGeometrySpacing(this.#origins);\n // update local if needed\n if (typeof geoSliceSpacing !== 'undefined' &&\n this.#spacing.get(2) !== geoSliceSpacing) {\n logger.trace('Using geometric spacing ' + geoSliceSpacing +\n ' instead of tag spacing ' + this.#spacing.get(2));\n const values = this.#spacing.getValues();\n values[2] = geoSliceSpacing;\n this.#spacing = new Spacing(values);\n }\n }\n\n /**\n * Get the object spacing.\n * Warning: the spacing comes as stored in DICOM, meaning that it could\n * be oriented.\n *\n * @param {Matrix33} [viewOrientation] The view orientation (optional).\n * @returns {Spacing} The object spacing.\n */\n getSpacing(viewOrientation) {\n // update slice spacing after appendSlice\n if (this.#newOrigins) {\n this.#updateSliceSpacing();\n this.#newOrigins = false;\n }\n let res = this.#spacing;\n if (viewOrientation && typeof viewOrientation !== 'undefined') {\n let orientedValues = getOrientedArray3D(\n [\n this.#spacing.get(0),\n this.#spacing.get(1),\n this.#spacing.get(2)\n ],\n viewOrientation);\n orientedValues = orientedValues.map(Math.abs);\n res = new Spacing(orientedValues);\n }\n return res;\n }\n\n /**\n * Get the image spacing in real world.\n *\n * @returns {Spacing} The object spacing.\n */\n getRealSpacing() {\n // asOneAndZeros to not change spacing values...\n return this.getSpacing(\n this.#orientation.getInverse().asOneAndZeros()\n );\n }\n\n /**\n * Get the object orientation.\n *\n * @returns {Matrix33} The object orientation.\n */\n getOrientation() {\n return this.#orientation;\n }\n\n /**\n * Get the slice position of a point in the current slice layout.\n * Slice indices increase with decreasing origins (high index -> low origin),\n * this simplified the handling of reconstruction since it means\n * the displayed data is in the same 'direction' as the extracted data.\n * As seen in the getOrigin method, the main origin is the lowest one.\n * This implies that the index to world and reverse method do some flipping\n * magic...\n *\n * @param {Point3D} point The point to evaluate.\n * @param {number} time Optional time index.\n * @returns {number} The slice index.\n */\n getSliceIndex(point, time) {\n // cannot use this.worldToIndex(point).getK() since\n // we cannot guaranty consecutive slices...\n\n let localOrigins = this.#origins;\n if (typeof time !== 'undefined') {\n localOrigins = this.#timeOrigins[time];\n }\n\n // find the closest origin\n const closestOriginIndex = point.getClosest(localOrigins);\n const closestOrigin = localOrigins[closestOriginIndex];\n\n // direction between the input point and the closest origin\n const pointDir = point.minus(closestOrigin);\n\n // use third orientation matrix column as plane normal vector\n const normal = new Vector3D(\n this.#orientation.get(0, 2),\n this.#orientation.get(1, 2),\n this.#orientation.get(2, 2)\n );\n\n // codirectional vectors: above slice index\n // oposite vectors: below slice index\n const isCodirectional = normal.isCodirectional(pointDir);\n const sliceIndex = isCodirectional\n ? closestOriginIndex + 1 : closestOriginIndex;\n\n return sliceIndex;\n }\n\n /**\n * Append an origin to the geometry.\n *\n * @param {Point3D} origin The origin to append.\n * @param {number} index The index at which to append.\n * @param {number} [time] Optional time index.\n */\n appendOrigin(origin, index, time) {\n // equal callback\n const equalToOrigin = function (element) {\n return element.equals(origin);\n };\n if (typeof time !== 'undefined') {\n // check if not already in list\n const found = this.#timeOrigins[time].find(equalToOrigin);\n if (typeof found !== 'undefined') {\n throw new Error('Cannot append same time origin twice');\n }\n // add in origin array\n this.#timeOrigins[time].splice(index, 0, origin);\n }\n if (typeof time === 'undefined' || time === this.#initialTime) {\n // check if not already in list\n const found = this.#origins.find(equalToOrigin);\n if (typeof found !== 'undefined') {\n throw new Error('Cannot append same origin twice');\n }\n // update flag\n this.#newOrigins = true;\n // add in origin array\n this.#origins.splice(index, 0, origin);\n // increment second dimension\n const values = this.#size.getValues();\n values[2] += 1;\n this.#size = new Size(values);\n }\n }\n\n /**\n * Append a frame to the geometry.\n *\n * @param {Point3D} origin The origin to append.\n * @param {number} time Optional time index.\n */\n appendFrame(origin, time) {\n // add origin to list\n this.#timeOrigins[time] = [origin];\n // increment third dimension\n const sizeValues = this.#size.getValues();\n const spacingValues = this.#spacing.getValues();\n if (sizeValues.length === 4) {\n sizeValues[3] += 1;\n } else {\n sizeValues.push(2);\n spacingValues.push(1);\n }\n this.#size = new Size(sizeValues);\n this.#spacing = new Spacing(spacingValues);\n }\n\n /**\n * Get a string representation of the geometry.\n *\n * @returns {string} The geometry as a string.\n */\n toString() {\n return 'Origin: ' + this.getOrigin() +\n ', Size: ' + this.getSize() +\n ', Spacing: ' + this.getSpacing() +\n ', Orientation: ' + this.getOrientation();\n }\n\n /**\n * Check for equality.\n *\n * @param {Geometry} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getOrigin().equals(rhs.getOrigin()) &&\n this.getSize().equals(rhs.getSize()) &&\n this.getSpacing().equals(rhs.getSpacing());\n }\n\n /**\n * Check that a point is within bounds.\n *\n * @param {Point} point The point to check.\n * @returns {boolean} True if the given coordinates are within bounds.\n */\n isInBounds(point) {\n return this.isIndexInBounds(this.worldToIndex(point));\n }\n\n /**\n * Check that a index is within bounds.\n *\n * @param {Index} index The index to check.\n * @param {number[]} [dirs] Optional list of directions to check.\n * @returns {boolean} True if the given coordinates are within bounds.\n */\n isIndexInBounds(index, dirs) {\n return this.getSize().isInBounds(index, dirs);\n }\n\n /**\n * Convert an index into world coordinates.\n *\n * @param {Index} index The index to convert.\n * @returns {Point} The corresponding point.\n */\n indexToWorld(index) {\n // apply spacing\n // (spacing is oriented, apply before orientation)\n const spacing = this.getSpacing();\n const orientedPoint3D = new Point3D(\n index.get(0) * spacing.get(0),\n index.get(1) * spacing.get(1),\n index.get(2) * spacing.get(2)\n );\n // de-orient\n const point3D = this.getOrientation().multiplyPoint3D(orientedPoint3D);\n // keep >3d values\n const values = index.getValues();\n const origin = this.getOrigin();\n values[0] = origin.getX() + point3D.getX();\n values[1] = origin.getY() + point3D.getY();\n values[2] = origin.getZ() + point3D.getZ();\n // return point\n return new Point(values);\n }\n\n /**\n * Convert a 3D point into world coordinates.\n *\n * @param {Point3D} point The 3D point to convert.\n * @returns {Point3D} The corresponding world 3D point.\n */\n pointToWorld(point) {\n // apply spacing\n // (spacing is oriented, apply before orientation)\n const spacing = this.getSpacing();\n const orientedPoint3D = new Point3D(\n point.getX() * spacing.get(0),\n point.getY() * spacing.get(1),\n point.getZ() * spacing.get(2)\n );\n // de-orient\n const point3D = this.getOrientation().multiplyPoint3D(orientedPoint3D);\n // return point3D\n const origin = this.getOrigin();\n return new Point3D(\n origin.getX() + point3D.getX(),\n origin.getY() + point3D.getY(),\n origin.getZ() + point3D.getZ()\n );\n }\n\n /**\n * Convert world coordinates into an index.\n *\n * @param {Point} point The point to convert.\n * @returns {Index} The corresponding index.\n */\n worldToIndex(point) {\n // compensate for origin\n // (origin is not oriented, compensate before orientation)\n // TODO: use slice origin...\n const origin = this.getOrigin();\n const point3D = new Point3D(\n point.get(0) - origin.getX(),\n point.get(1) - origin.getY(),\n point.get(2) - origin.getZ()\n );\n // orient\n const orientedPoint3D =\n this.getOrientation().getInverse().multiplyPoint3D(point3D);\n // keep >3d values\n const values = point.getValues();\n // apply spacing and round\n const spacing = this.getSpacing();\n values[0] = Math.round(orientedPoint3D.getX() / spacing.get(0));\n values[1] = Math.round(orientedPoint3D.getY() / spacing.get(1));\n values[2] = Math.round(orientedPoint3D.getZ() / spacing.get(2));\n\n // return index\n return new Index(values);\n }\n\n /**\n * Convert world coordinates into an point.\n *\n * @param {Point} point The world point to convert.\n * @returns {Point3D} The corresponding point.\n */\n worldToPoint(point) {\n // compensate for origin\n // (origin is not oriented, compensate before orientation)\n const origin = this.getOrigin();\n const point3D = new Point3D(\n point.get(0) - origin.getX(),\n point.get(1) - origin.getY(),\n point.get(2) - origin.getZ()\n );\n // orient\n const orientedPoint3D =\n this.getOrientation().getInverse().multiplyPoint3D(point3D);\n // keep >3d values\n const values = point.getValues();\n // apply spacing and round\n const spacing = this.getSpacing();\n values[0] = orientedPoint3D.getX() / spacing.get(0);\n values[1] = orientedPoint3D.getY() / spacing.get(1);\n values[2] = orientedPoint3D.getZ() / spacing.get(2);\n\n // return index\n return new Point3D(values[0], values[1], values[2]);\n }\n\n} // class Geometry\n\n/**\n * Get the oriented values of an input 3D array.\n *\n * @param {number[]} array3D The 3D array.\n * @param {Matrix33} orientation The orientation 3D matrix.\n * @returns {number[]} The values reordered according to the orientation.\n */\nexport function getOrientedArray3D(array3D, orientation) {\n // values = orientation * orientedValues\n // -> inv(orientation) * values = orientedValues\n return orientation.getInverse().multiplyArray3D(array3D);\n}\n\n/**\n * Get the raw values of an oriented input 3D array.\n *\n * @param {number[]} array3D The 3D array.\n * @param {Matrix33} orientation The orientation 3D matrix.\n * @returns {number[]} The values reordered to compensate the orientation.\n */\nexport function getDeOrientedArray3D(array3D, orientation) {\n // values = orientation * orientedValues\n return orientation.multiplyArray3D(array3D);\n}\n\n/**\n * Get the slice spacing from the difference in the Z directions\n * of input origins.\n *\n * @param {Point3D[]} origins An array of Point3D.\n * @returns {number|undefined} The spacing.\n */\nexport function getSliceGeometrySpacing(origins) {\n // check origins\n if (origins.length <= 1) {\n return;\n }\n\n const spacings = [];\n for (let i = 0; i < origins.length - 1; ++i) {\n const origin1 = origins[i];\n const origin2 = origins[i + 1];\n const sliceSpacing = origin1.getDistance(origin2);\n if (sliceSpacing === 0) {\n throw new Error('Zero slice spacing ' +\n origin1.toString() + ' ' + origin2.toString());\n }\n spacings.push(sliceSpacing);\n }\n\n // use rounded mean value as spacing\n const stats = getBasicStats(spacings);\n const spacing = precisionRound(stats.mean, 4);\n\n // warn if non constant\n if (stats.stdDev > REAL_WORLD_EPSILON) {\n logger.warn('Varying slice spacing, value: ' + spacing +\n ' (mean: ' + stats.mean +\n ', min: ' + stats.min +\n ', max: ' + stats.max +\n ', stdDev: ' + stats.stdDev + ')');\n }\n\n return spacing;\n}\n","import {DataElement} from './dataElement';\n\n/**\n * Pad an input string with a '0' to form a 2 digit one.\n *\n * @param {string} str The string to pad.\n * @returns {string} The padded string.\n */\nfunction padZeroTwoDigit(str) {\n return ('0' + str).slice(-2);\n}\n\n/**\n * Get a 'date' object with {year, monthIndex, day} ready for the\n * Date constructor from a DICOM element with vr=DA.\n *\n * @param {DataElement} element The DICOM element with date information.\n * @returns {{year, monthIndex, day}|undefined} The 'date' object.\n */\nexport function getDate(element) {\n if (typeof element === 'undefined') {\n return undefined;\n }\n if (element.value.length !== 1) {\n return undefined;\n }\n const daValue = element.value[0];\n // Two possible formats:\n // - standard 'YYYYMMDD'\n // - non-standard 'YYYY.MM.DD' (previous ACR-NEMA)\n let monthBeginIndex = 4;\n let dayBeginIndex = 6;\n if (daValue.length === 10) {\n monthBeginIndex = 5;\n dayBeginIndex = 8;\n }\n const daYears = parseInt(daValue.substring(0, 4), 10);\n // 0-11 range\n const daMonthIndex = daValue.length >= monthBeginIndex + 2\n ? parseInt(daValue.substring(\n monthBeginIndex, monthBeginIndex + 2), 10) - 1 : 0;\n const daDay = daValue.length === dayBeginIndex + 2\n ? parseInt(daValue.substring(\n dayBeginIndex, dayBeginIndex + 2), 10) : 0;\n return {\n year: daYears,\n monthIndex: daMonthIndex,\n day: daDay\n };\n}\n\n/**\n * Get a time object with {hours, minutes, seconds} ready for the\n * Date constructor from a DICOM element with vr=TM.\n *\n * @param {DataElement} element The DICOM element with date information.\n * @returns {{hours, minutes, seconds, milliseconds}|undefined} The time object.\n */\nexport function getTime(element) {\n if (typeof element === 'undefined') {\n return undefined;\n }\n if (element.value.length !== 1) {\n return undefined;\n }\n // format: HH[MMSS.FFFFFF]\n const tmValue = element.value[0];\n const tmHours = parseInt(tmValue.substring(0, 2), 10);\n const tmMinutes = tmValue.length >= 4\n ? parseInt(tmValue.substring(2, 4), 10) : 0;\n const tmSeconds = tmValue.length >= 6\n ? parseInt(tmValue.substring(4, 6), 10) : 0;\n const tmFracSecondsStr = tmValue.length >= 8\n ? tmValue.substring(7, 10) : 0;\n const tmMilliSeconds = tmFracSecondsStr === 0 ? 0\n : parseInt(tmFracSecondsStr, 10) *\n Math.pow(10, 3 - tmFracSecondsStr.length);\n return {\n hours: tmHours,\n minutes: tmMinutes,\n seconds: tmSeconds,\n milliseconds: tmMilliSeconds\n };\n}\n\n/**\n * Get a 'dateTime' object with {date, time} ready for the\n * Date constructor from a DICOM element with vr=DT.\n *\n * @param {DataElement} element The DICOM element with date-time information.\n * @returns {{date, time}|undefined} The time object.\n */\nexport function getDateTime(element) {\n if (typeof element === 'undefined') {\n return undefined;\n }\n if (element.value.length !== 1) {\n return undefined;\n }\n // format: YYYYMMDDHHMMSS.FFFFFF&ZZXX\n const dtFullValue = element.value[0];\n // remove offset (&ZZXX)\n const dtValue = dtFullValue.split('&')[0];\n const dateDataElement = new DataElement('DA');\n dateDataElement.value = [dtValue.substring(0, 8)];\n const dtDate = getDate(dateDataElement);\n const timeDataElement = new DataElement('TM');\n timeDataElement.value = [dtValue.substring(8)];\n const dtTime = dtValue.length >= 9\n ? getTime(timeDataElement) : undefined;\n return {\n date: dtDate,\n time: dtTime\n };\n}\n\n/**\n * Extract date values from a Date object.\n *\n * @param {Date} date The input date.\n * @returns {{year, monthIndex, day}} A 'date' object.\n */\nexport function dateToDateObj(date) {\n return {\n year: date.getFullYear().toString(),\n monthIndex: padZeroTwoDigit((date.getMonth() + 1).toString()),\n day: padZeroTwoDigit(date.getDate().toString())\n };\n}\n\n/**\n * Extract time values from a Date object.\n *\n * @param {Date} date The input date.\n * @returns {{hours, minutes, seconds}} A 'time' object.\n */\nexport function dateToTimeObj(date) {\n return {\n hours: padZeroTwoDigit(date.getHours().toString()),\n minutes: padZeroTwoDigit(date.getMinutes().toString()),\n seconds: padZeroTwoDigit(date.getSeconds().toString())\n };\n}\n\n/**\n * Get a DICOM formated date string.\n *\n * @param {{year, monthIndex, day}} dateObj The date to format.\n * @returns {string} The formated date.\n */\nexport function getDicomDate(dateObj) {\n // YYYYMMDD\n return (\n dateObj.year +\n dateObj.monthIndex +\n dateObj.day\n );\n}\n\n/**\n * Get a DICOM formated time string.\n *\n * @param {{hours, minutes, seconds}} dateObj The date to format.\n * @returns {string} The formated time.\n */\nexport function getDicomTime(dateObj) {\n // HHMMSS\n return (\n dateObj.hours +\n dateObj.minutes +\n dateObj.seconds\n );\n}\n\n/**\n * Get a DICOM formated datetime string.\n *\n * @param {{date, time}} datetime The datetime to format.\n * @returns {string} The formated datetime.\n */\nexport function getDicomDateTime(datetime) {\n // HHMMSS\n let res = getDicomDate(datetime.date);\n if (typeof datetime.time !== 'undefined') {\n res += getDicomTime(datetime.time);\n }\n return res;\n}\n","import {\n DicomParser,\n getTransferSyntaxName\n} from './dicomParser';\nimport {\n getDate,\n getTime,\n getDateTime\n} from './dicomDate';\nimport {\n isPixelDataTag,\n isItemDelimitationItemTag,\n isSequenceDelimitationItemTag,\n getItemTag,\n getItemDelimitationItemTag,\n getSequenceDelimitationItemTag,\n getPixelDataTag,\n getTagFromKey\n} from './dicomTag';\nimport {isNativeLittleEndian} from './dataReader';\nimport {getOrientationFromCosines} from '../math/orientation';\nimport {Spacing} from '../image/spacing';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Tag} from './dicomTag';\nimport {DataElement} from './dataElement';\nimport {Matrix33} from '../math/matrix';\n/* eslint-enable no-unused-vars */\n\n/**\n * @typedef {Object} DataElements\n */\n\n/**\n * Dump the DICOM tags to a string in the same way as the\n * DCMTK `dcmdump` command (https://support.dcmtk.org/docs-dcmrt/dcmdump.html).\n *\n * @param {Object} dicomElements The dicom elements.\n * @returns {string} The dumped file.\n */\nexport function dcmdump(dicomElements) {\n const keys = Object.keys(dicomElements);\n let result = '\\n';\n result += '# Dicom-File-Format\\n';\n result += '\\n';\n result += '# Dicom-Meta-Information-Header\\n';\n result += '# Used TransferSyntax: ';\n if (isNativeLittleEndian()) {\n result += 'Little Endian Explicit\\n';\n } else {\n result += 'NOT Little Endian Explicit\\n';\n }\n let dicomElement = null;\n let tag = null;\n let checkHeader = true;\n for (let i = 0, leni = keys.length; i < leni; ++i) {\n dicomElement = dicomElements[keys[i]];\n tag = getTagFromKey(keys[i]);\n if (checkHeader && tag.getGroup() !== '0002') {\n result += '\\n';\n result += '# Dicom-Data-Set\\n';\n result += '# Used TransferSyntax: ';\n const syntax = dicomElements['00020010'].value[0];\n result += getTransferSyntaxName(syntax);\n result += '\\n';\n checkHeader = false;\n }\n result += getElementAsString(tag, dicomElement) + '\\n';\n }\n return result;\n}\n\n/**\n * Get a data element value as a string.\n *\n * @param {Tag} tag The DICOM tag.\n * @param {object} dicomElement The DICOM element.\n * @param {boolean} [pretty] When set to true, returns a 'pretified' content.\n * @returns {string} A string representation of the DICOM element.\n */\nfunction getElementValueAsString(tag, dicomElement, pretty) {\n let str = '';\n const strLenLimit = 65;\n\n // dafault to pretty output\n if (typeof pretty === 'undefined') {\n pretty = true;\n }\n // check dicom element input\n if (typeof dicomElement === 'undefined' || dicomElement === null) {\n return str;\n }\n\n // Polyfill for Number.isInteger.\n const isInteger = Number.isInteger || function (value) {\n return typeof value === 'number' &&\n isFinite(value) &&\n Math.floor(value) === value;\n };\n\n // TODO Support sequences.\n\n if (dicomElement.vr !== 'SQ' &&\n dicomElement.value.length === 1 && dicomElement.value[0] === '') {\n str += '(no value available)';\n } else if (isPixelDataTag(tag) &&\n dicomElement.undefinedLength) {\n str = '(PixelSequence)';\n } else if (dicomElement.vr === 'DA' && pretty) {\n const daObj = getDate(dicomElement);\n const da = new Date(daObj.year, daObj.monthIndex, daObj.day);\n str = da.toLocaleDateString();\n } else if (dicomElement.vr === 'TM' && pretty) {\n const tmObj = getTime(dicomElement);\n str = tmObj.hours + ':' + tmObj.minutes + ':' + tmObj.seconds;\n } else {\n let isOtherVR = false;\n if (dicomElement.vr.length !== 0) {\n isOtherVR = (dicomElement.vr[0].toUpperCase() === 'O');\n }\n const isFloatNumberVR = (dicomElement.vr === 'FL' ||\n dicomElement.vr === 'FD' ||\n dicomElement.vr === 'DS');\n let valueStr = '';\n for (let k = 0, lenk = dicomElement.value.length; k < lenk; ++k) {\n valueStr = '';\n if (k !== 0) {\n valueStr += '\\\\';\n }\n if (isFloatNumberVR) {\n const num = Number(dicomElement.value[k]);\n if (!isInteger(num) && pretty) {\n valueStr += num.toPrecision(4);\n } else {\n valueStr += num.toString();\n }\n } else if (isOtherVR) {\n let tmp = dicomElement.value[k].toString(16);\n if (dicomElement.vr === 'OB') {\n tmp = '00'.substring(0, 2 - tmp.length) + tmp;\n } else {\n tmp = '0000'.substring(0, 4 - tmp.length) + tmp;\n }\n valueStr += tmp;\n } else {\n valueStr += dicomElement.value[k];\n }\n // check length\n if (str.length + valueStr.length <= strLenLimit) {\n str += valueStr;\n } else {\n str += '...';\n break;\n }\n }\n }\n return str;\n}\n\n/**\n * Get a data element as a string.\n *\n * @param {Tag} tag The DICOM tag.\n * @param {object} dicomElement The DICOM element.\n * @param {string} [prefix] A string to prepend this one.\n * @returns {string} The element as a string.\n */\nfunction getElementAsString(tag, dicomElement, prefix) {\n // default prefix\n prefix = prefix || '';\n\n // get tag anme from dictionary\n const tagName = tag.getNameFromDictionary();\n\n let deSize = dicomElement.value.length;\n let isOtherVR = false;\n if (dicomElement.vr.length !== 0) {\n isOtherVR = (dicomElement.vr[0].toUpperCase() === 'O');\n }\n\n // no size for delimitations\n if (isItemDelimitationItemTag(tag) ||\n isSequenceDelimitationItemTag(tag)) {\n deSize = 0;\n } else if (isOtherVR) {\n deSize = 1;\n }\n\n const isPixSequence = (isPixelDataTag(tag) &&\n dicomElement.undefinedLength);\n\n let line = null;\n\n // (group,element)\n line = '(';\n line += tag.getGroup().toLowerCase();\n line += ',';\n line += tag.getElement().toLowerCase();\n line += ') ';\n // value representation\n line += dicomElement.vr;\n // value\n if (dicomElement.vr !== 'SQ' &&\n dicomElement.value.length === 1 &&\n dicomElement.value[0] === '') {\n line += ' (no value available)';\n deSize = 0;\n } else {\n // simple number display\n if (dicomElement.vr === 'na') {\n line += ' ';\n line += dicomElement.value[0];\n } else if (isPixSequence) {\n // pixel sequence\n line += ' (PixelSequence #=' + deSize + ')';\n } else if (dicomElement.vr === 'SQ') {\n line += ' (Sequence with';\n if (dicomElement.undefinedLength) {\n line += ' undefined';\n } else {\n line += ' explicit';\n }\n line += ' length #=';\n line += dicomElement.value.length;\n line += ')';\n } else if (isOtherVR ||\n dicomElement.vr === 'pi' ||\n dicomElement.vr === 'UL' ||\n dicomElement.vr === 'US' ||\n dicomElement.vr === 'SL' ||\n dicomElement.vr === 'SS' ||\n dicomElement.vr === 'FL' ||\n dicomElement.vr === 'FD' ||\n dicomElement.vr === 'AT') {\n // 'O'ther array, limited display length\n line += ' ';\n line += getElementValueAsString(tag, dicomElement, false);\n } else {\n // default\n line += ' [';\n line += getElementValueAsString(tag, dicomElement, false);\n line += ']';\n }\n }\n\n // align #\n const nSpaces = 55 - line.length;\n if (nSpaces > 0) {\n for (let s = 0; s < nSpaces; ++s) {\n line += ' ';\n }\n }\n line += ' # ';\n if (dicomElement.vl < 100) {\n line += ' ';\n }\n if (dicomElement.vl < 10) {\n line += ' ';\n }\n line += dicomElement.vl;\n line += ', ';\n line += deSize; //dictElement[1];\n line += ' ';\n if (tagName !== null) {\n line += tagName;\n } else {\n line += 'Unknown Tag & Data';\n }\n\n let message = null;\n\n // continue for sequence\n if (dicomElement.vr === 'SQ') {\n let item = null;\n for (let l = 0, lenl = dicomElement.value.length; l < lenl; ++l) {\n item = dicomElement.value[l];\n const itemKeys = Object.keys(item);\n if (itemKeys.length === 0) {\n continue;\n }\n\n // get the item element\n const itemTag = getItemTag();\n const itemElement = item['FFFEE000'];\n message = '(Item with';\n if (itemElement.undefinedLength) {\n message += ' undefined';\n } else {\n message += ' explicit';\n }\n message += ' length #=' + (itemKeys.length - 1) + ')';\n itemElement.value = [message];\n itemElement.vr = 'na';\n\n line += '\\n';\n line += getElementAsString(itemTag, itemElement, prefix + ' ');\n\n for (let m = 0, lenm = itemKeys.length; m < lenm; ++m) {\n const itemTag = getTagFromKey(itemKeys[m]);\n if (itemKeys[m] !== 'xFFFEE000') {\n line += '\\n';\n line += getElementAsString(itemTag, item[itemKeys[m]],\n prefix + ' ');\n }\n }\n\n message = '(ItemDelimitationItem';\n if (!itemElement.undefinedLength) {\n message += ' for re-encoding';\n }\n message += ')';\n const itemDelimTag = getItemDelimitationItemTag();\n const itemDelimElement = {\n vr: 'na',\n vl: '0',\n value: [message]\n };\n line += '\\n';\n line += getElementAsString(\n itemDelimTag, itemDelimElement, prefix + ' ');\n\n }\n\n message = '(SequenceDelimitationItem';\n if (!dicomElement.undefinedLength) {\n message += ' for re-encod.';\n }\n message += ')';\n const sqDelimTag = getSequenceDelimitationItemTag();\n const sqDelimElement = {\n vr: 'na',\n vl: '0',\n value: [message]\n };\n line += '\\n';\n line += getElementAsString(sqDelimTag, sqDelimElement, prefix);\n } else if (isPixSequence) {\n // pixel sequence\n let pixItem = null;\n for (let n = 0, lenn = dicomElement.value.length; n < lenn; ++n) {\n pixItem = dicomElement.value[n];\n line += '\\n';\n pixItem.vr = 'pi';\n line += getElementAsString(\n getPixelDataTag(), pixItem, prefix + ' ');\n }\n\n const pixDelimTag = getSequenceDelimitationItemTag();\n const pixDelimElement = {\n vr: 'na',\n vl: '0',\n value: ['(SequenceDelimitationItem)']\n };\n line += '\\n';\n line += getElementAsString(pixDelimTag, pixDelimElement, prefix);\n }\n\n return prefix + line;\n}\n\n/**\n * Extract the 2D size from dicom elements.\n *\n * @param {DataElements} elements The DICOM elements.\n * @returns {number[]} The size.\n */\nexport function getImage2DSize(elements) {\n // rows\n const rows = elements['00280010'];\n if (typeof rows === 'undefined') {\n throw new Error('Missing DICOM image number of rows');\n }\n if (rows.value.length === 0) {\n throw new Error('Empty DICOM image number of rows');\n }\n // columns\n const columns = elements['00280011'];\n if (typeof columns === 'undefined') {\n throw new Error('Missing DICOM image number of columns');\n }\n if (columns.value.length === 0) {\n throw new Error('Empty DICOM image number of columns');\n }\n return [columns.value[0], rows.value[0]];\n}\n\n/**\n * Get the pixel spacing from the different spacing tags.\n *\n * @param {DataElements} elements The DICOM elements.\n * @returns {Spacing} The read spacing or the default [1,1].\n */\nexport function getPixelSpacing(elements) {\n // default\n let rowSpacing = 1;\n let columnSpacing = 1;\n\n // 1. PixelSpacing\n // 2. ImagerPixelSpacing\n // 3. NominalScannedPixelSpacing\n // 4. PixelAspectRatio\n const keys = ['00280030', '00181164', '00182010', '00280034'];\n for (let k = 0; k < keys.length; ++k) {\n const spacing = elements[keys[k]];\n if (spacing && spacing.value.length === 2) {\n // spacing order: [row, column]\n rowSpacing = parseFloat(spacing.value[0]);\n columnSpacing = parseFloat(spacing.value[1]);\n break;\n }\n }\n\n // check\n if (columnSpacing === 0) {\n logger.warn('Zero column spacing.');\n columnSpacing = 1;\n }\n if (rowSpacing === 0) {\n logger.warn('Zero row spacing.');\n rowSpacing = 1;\n }\n\n // return\n // (slice spacing will be calculated using the image position patient)\n return new Spacing([columnSpacing, rowSpacing, 1]);\n}\n\n/**\n * Get the pixel data unit.\n *\n * @param {DataElements} elements The DICOM elements.\n * @returns {string|null} The unit value if available.\n */\nexport function getPixelUnit(elements) {\n let unit;\n // 1. RescaleType\n // 2. Units (for PET)\n const keys = ['00281054', '00541001'];\n for (let i = 0; i < keys.length; ++i) {\n const element = elements[keys[i]];\n if (typeof element !== 'undefined') {\n unit = element.value[0];\n break;\n }\n }\n // default rescale type for CT\n if (typeof unit === 'undefined') {\n const element = elements['00080060'];\n if (typeof element !== 'undefined') {\n const modality = element.value[0];\n if (modality === 'CT') {\n unit = 'HU';\n }\n }\n }\n return unit;\n}\n\n/**\n * Check the dimension organization from a dicom element.\n *\n * @param {DataElements} dataElements The root dicom element.\n * @returns {object} The dimension organizations and indices.\n */\nexport function getDimensionOrganization(dataElements) {\n // Dimension Organization Sequence (required)\n const orgSq = dataElements['00209221'];\n if (typeof orgSq === 'undefined' || orgSq.value.length !== 1) {\n throw new Error('Unsupported dimension organization sequence length');\n }\n // Dimension Organization UID\n const orgUID = orgSq.value[0]['00209164'].value[0];\n\n // Dimension Index Sequence (conditionally required)\n const indices = [];\n const indexSqElem = dataElements['00209222'];\n if (typeof indexSqElem !== 'undefined') {\n const indexSq = indexSqElem.value;\n // expecting 2D index\n if (indexSq.length !== 2) {\n throw new Error('Unsupported dimension index sequence length');\n }\n let indexPointer;\n for (let i = 0; i < indexSq.length; ++i) {\n // Dimension Organization UID (required)\n const indexOrg = indexSq[i]['00209164'].value[0];\n if (indexOrg !== orgUID) {\n throw new Error(\n 'Dimension Index Sequence contains a unknown Dimension Organization');\n }\n // Dimension Index Pointer (required)\n indexPointer = indexSq[i]['00209165'].value[0];\n\n const index = {\n DimensionOrganizationUID: indexOrg,\n DimensionIndexPointer: indexPointer\n };\n // Dimension Description Label (optional)\n if (typeof indexSq[i]['00209421'] !== 'undefined') {\n index.DimensionDescriptionLabel = indexSq[i]['00209421'].value[0];\n }\n // store\n indices.push(index);\n }\n // expecting Image Position at last position\n if (indexPointer !== '(0020,0032)') {\n throw new Error('Unsupported non image position as last index');\n }\n }\n\n return {\n organizations: {\n value: [\n {\n DimensionOrganizationUID: orgUID\n }\n ]\n },\n indices: {\n value: indices\n }\n };\n}\n\n/**\n * Get a spacing object from a dicom measure element.\n *\n * @param {DataElements} dataElements The dicom element.\n * @returns {Spacing} A spacing object.\n */\nexport function getSpacingFromMeasure(dataElements) {\n // Pixel Spacing\n if (typeof dataElements['00280030'] === 'undefined') {\n return null;\n }\n const pixelSpacing = dataElements['00280030'];\n // spacing order: [row, column]\n const spacingValues = [\n parseFloat(pixelSpacing.value[1]),\n parseFloat(pixelSpacing.value[0]),\n ];\n // Spacing Between Slices\n if (typeof dataElements['00180088'] !== 'undefined') {\n spacingValues.push(parseFloat(dataElements['00180088'].value[0]));\n }\n return new Spacing(spacingValues);\n}\n\n/**\n * Get an orientation matrix from a dicom orientation element.\n *\n * @param {DataElements} dataElements The dicom element.\n * @returns {Matrix33|undefined} The orientation matrix.\n */\nexport function getOrientationMatrix(dataElements) {\n const imageOrientationPatient = dataElements['00200037'];\n let orientationMatrix;\n // slice orientation (cosines are matrices' columns)\n // http://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.7.6.2.html#sect_C.7.6.2.1.1\n if (typeof imageOrientationPatient !== 'undefined') {\n orientationMatrix =\n getOrientationFromCosines(\n imageOrientationPatient.value.map((item) => parseFloat(item))\n );\n }\n return orientationMatrix;\n}\n\n/**\n * Get a dicom item from a measure sequence.\n *\n * @param {Spacing} spacing The spacing object.\n * @returns {object} The dicom item.\n */\nexport function getDicomMeasureItem(spacing) {\n return {\n SpacingBetweenSlices: spacing.get(2),\n PixelSpacing: [spacing.get(1), spacing.get(0)]\n };\n}\n\n/**\n * Get a dicom element from a plane orientation sequence.\n *\n * @param {Matrix33} orientation The image orientation.\n * @returns {object} The dicom element.\n */\nexport function getDicomPlaneOrientationItem(orientation) {\n return {\n ImageOrientationPatient: [\n orientation.get(0, 0),\n orientation.get(1, 0),\n orientation.get(2, 0),\n orientation.get(0, 1),\n orientation.get(1, 1),\n orientation.get(2, 1)\n ]\n };\n}\n\n/**\n * Check an input tag.\n *\n * @param {object} element The element to check.\n * @param {string} name The element name.\n * @param {Array} [values] The expected values.\n * @returns {string} A warning if the element is not as expected.\n */\nfunction checkTag(element, name, values) {\n let warning = '';\n if (typeof element === 'undefined') {\n warning += ' ' + name + ' is undefined,';\n } else if (element.value.length === 0) {\n warning += ' ' + name + ' is empty,';\n } else {\n if (typeof values !== 'undefined') {\n for (let i = 0; i < values.length; ++i) {\n if (!element.value.includes(values[i])) {\n warning += ' ' + name + ' does not contain ' + values[i] +\n ' (value: ' + element.value + '),';\n }\n }\n }\n }\n return warning;\n}\n\n/**\n * Get the decayed dose (Bq).\n *\n * @param {object} elements The DICOM elements to check.\n * @returns {object} The value and a warning if\n * the elements are not as expected.\n */\nfunction getDecayedDose(elements) {\n let warning = '';\n let warn;\n\n // SeriesDate (type1)\n const seriesDateEl = elements['00080021'];\n const seriesDateObj = getDate(seriesDateEl);\n\n let totalDose;\n let halfLife;\n let radioStart;\n\n const radioInfoSqStr = 'RadiopharmaceuticalInformationSequence (00540016)';\n const radioInfoSq = elements['00540016'];\n warning += checkTag(radioInfoSq, radioInfoSqStr);\n if (typeof radioInfoSq !== 'undefined') {\n if (radioInfoSq.value.length !== 1) {\n logger.warn(\n 'Found more than 1 istopes in RadiopharmaceuticalInformation Sequence.'\n );\n }\n\n // RadionuclideTotalDose (type3, Bq)\n const totalDoseStr = 'RadionuclideTotalDose (00181074)';\n const totalDoseEl = radioInfoSq.value[0]['00181074'];\n warn = checkTag(totalDoseEl, totalDoseStr);\n if (warn.length === 0) {\n totalDose = totalDoseEl.value[0];\n } else {\n warning += warn;\n }\n\n // RadionuclideHalfLife (type3, seconds)\n const halfLifeStr = 'RadionuclideHalfLife (00181075)';\n const halfLifeEl = radioInfoSq.value[0]['00181075'];\n warn = checkTag(halfLifeEl, halfLifeStr);\n if (warn.length === 0) {\n halfLife = parseFloat(halfLifeEl.value[0]);\n } else {\n warning += warn;\n }\n\n // RadiopharmaceuticalStartDateTime (type3)\n const radioStartDateTimeEl = radioInfoSq.value[0]['00181078'];\n let radioStartDateObj;\n let radioStartTimeObj;\n if (typeof radioStartDateTimeEl === 'undefined') {\n // use seriesDate as radioStartDate\n radioStartDateObj = seriesDateObj;\n // try RadiopharmaceuticalStartTime (type3)\n const radioStartTimeEl = radioInfoSq.value[0]['00181072'];\n radioStartTimeObj = getTime(radioStartTimeEl);\n } else {\n const radioStartDateTime = getDateTime(radioStartDateTimeEl);\n radioStartDateObj = radioStartDateTime.date;\n radioStartTimeObj = radioStartDateTime.time;\n }\n if (typeof radioStartTimeObj === 'undefined') {\n radioStartTimeObj = {\n hours: 0, minutes: 0, seconds: 0, milliseconds: 0\n };\n }\n radioStart = new Date(\n radioStartDateObj.year,\n radioStartDateObj.monthIndex,\n radioStartDateObj.day,\n radioStartTimeObj.hours,\n radioStartTimeObj.minutes,\n radioStartTimeObj.seconds,\n radioStartTimeObj.milliseconds\n );\n }\n\n // SeriesTime (type1)\n const seriesTimeEl = elements['00080031'];\n const seriesTimeObj = getTime(seriesTimeEl);\n // Series date/time\n let scanStart = new Date(\n seriesDateObj.year,\n seriesDateObj.monthIndex,\n seriesDateObj.day,\n seriesTimeObj.hours,\n seriesTimeObj.minutes,\n seriesTimeObj.seconds,\n seriesTimeObj.milliseconds\n );\n\n // scanStart Date check\n // AcquisitionDate (type3)\n const acqDateEl = elements['00080022'];\n // AcquisitionTime (type3)\n const acqTimeEl = elements['00080032'];\n if (typeof acqDateEl !== 'undefined' &&\n typeof acqTimeEl !== 'undefined') {\n const acqDateObj = getDate(acqDateEl);\n const acqTimeObj = getTime(acqTimeEl);\n const acqDate = new Date(\n acqDateObj.year,\n acqDateObj.monthIndex,\n acqDateObj.day,\n acqTimeObj.hours,\n acqTimeObj.minutes,\n acqTimeObj.seconds,\n acqTimeObj.milliseconds\n );\n\n if (scanStart > acqDate) {\n const diff = scanStart.getTime() - acqDate.getTime();\n const warn = 'Series date/time is after Aquisition date/time (diff=' +\n diff.toString() + 'ms) ';\n logger.debug(warn);\n\n // back compute from center (average count rate) of time window\n // for bed position (frame) in series (reliable in all cases)\n\n let frameRefTime = 0;\n const frameRefTimeElStr = 'FrameReferenceTime (00541300)';\n const frameRefTimeEl = elements['00541300'];\n warning += checkTag(frameRefTimeEl, frameRefTimeElStr);\n if (typeof frameRefTimeEl !== 'undefined') {\n frameRefTime = frameRefTimeEl.value[0];\n }\n let actualFrameDuration = 0;\n const actualFrameDurationElStr = 'ActualFrameDuration (0018,1242)';\n const actualFrameDurationEl = elements['00181242'];\n warning += checkTag(actualFrameDurationEl, actualFrameDurationElStr);\n if (typeof actualFrameDurationEl !== 'undefined') {\n actualFrameDuration = actualFrameDurationEl.value[0];\n }\n if (frameRefTime > 0 && actualFrameDuration > 0) {\n // convert to seconds\n actualFrameDuration = actualFrameDuration / 1000;\n frameRefTime = frameRefTime / 1000;\n const decayConstant = Math.log(2) / halfLife;\n const decayDuringFrame = decayConstant * actualFrameDuration;\n const averageCountRateTimeWithinFrame =\n 1 /\n decayConstant *\n Math.log(decayDuringFrame / (1 - Math.exp(-decayDuringFrame)));\n const offsetSeconds = averageCountRateTimeWithinFrame - frameRefTime;\n scanStart = new Date(\n acqDateObj.year,\n acqDateObj.monthIndex,\n acqDateObj.day,\n acqTimeObj.hours,\n acqTimeObj.minutes,\n acqTimeObj.seconds + offsetSeconds,\n acqTimeObj.milliseconds\n );\n }\n }\n }\n\n // decayed dose (Bq)\n let decayedDose;\n if (typeof scanStart !== 'undefined' &&\n typeof radioStart !== 'undefined' &&\n typeof totalDose !== 'undefined' &&\n typeof halfLife !== 'undefined') {\n // decay time (s) (Date diff is in milliseconds)\n const decayTime = (scanStart.getTime() - radioStart.getTime()) / 1000;\n const decay = Math.pow(2, (-decayTime / halfLife));\n decayedDose = totalDose * decay;\n }\n\n return {\n value: decayedDose,\n warning: warning\n };\n}\n\n/**\n * Get the PET SUV factor.\n *\n * Ref:\n * - {@link https://qibawiki.rsna.org/index.php/Standardized_Uptake_Value_(SUV)#SUV_Calculation},\n * - {@link https://qibawiki.rsna.org/images/6/62/SUV_vendorneutral_pseudocode_happypathonly_20180626_DAC.pdf},\n * - {@link https://qibawiki.rsna.org/images/8/86/SUV_vendorneutral_pseudocode_20180626_DAC.pdf}.\n *\n * @param {object} elements The DICOM elements.\n * @returns {object} The value and a warning if\n * the elements are not as expected.\n */\nexport function getSuvFactor(elements) {\n let warning = '';\n\n // CorrectedImage (type2): must contain ATTN and DECY\n const corrImageTagStr = 'Corrected Image (00280051)';\n const corrImageEl = elements['00280051'];\n warning += checkTag(corrImageEl, corrImageTagStr, ['ATTN', 'DECY']);\n // DecayCorrection (type1): must be START\n const decayCorrTagStr = 'Decay Correction (00541102)';\n const decayCorrEl = elements['00541102'];\n warning += checkTag(decayCorrEl, decayCorrTagStr, ['START']);\n // Units (type1): must be BQML\n const unitTagStr = 'Units (00541001)';\n const unitEl = elements['00541001'];\n warning += checkTag(unitEl, unitTagStr, ['BQML']);\n\n // PatientWeight (type3, kg)\n let patWeight;\n const patientWeightStr = ' PatientWeight (00101030)';\n const patWeightEl = elements['00101030'];\n const warn = checkTag(patWeightEl, patientWeightStr);\n if (warn.length === 0) {\n patWeight = patWeightEl.value[0];\n } else {\n warning += warn;\n }\n\n // Decayed dose (Bq)\n const decayedDose = getDecayedDose(elements);\n warning += decayedDose.warning;\n\n const result = {};\n if (warning.length !== 0) {\n result.warning = 'Cannot calculate PET SUV:' + warning;\n } else {\n // SUV factor (grams/Bq)\n result.value = (patWeight * 1000) / decayedDose.value;\n }\n\n return result;\n}\n\n/**\n * Get the file list from a DICOMDIR.\n *\n * @param {object} data The buffer data of the DICOMDIR.\n * @returns {Array|undefined} The file list as an array ordered by\n * STUDY > SERIES > IMAGES.\n */\nexport function getFileListFromDicomDir(data) {\n // parse file\n const parser = new DicomParser();\n parser.parse(data);\n const elements = parser.getDicomElements();\n\n // Directory Record Sequence\n if (typeof elements['00041220'] === 'undefined' ||\n typeof elements['00041220'].value === 'undefined') {\n logger.warn('No Directory Record Sequence found in DICOMDIR.');\n return undefined;\n }\n const dirSeq = elements['00041220'].value;\n\n if (dirSeq.length === 0) {\n logger.warn('The Directory Record Sequence of the DICOMDIR is empty.');\n return undefined;\n }\n\n const records = [];\n let series = null;\n let study = null;\n for (let i = 0; i < dirSeq.length; ++i) {\n // Directory Record Type\n if (typeof dirSeq[i]['00041430'] === 'undefined' ||\n typeof dirSeq[i]['00041430'].value === 'undefined') {\n continue;\n }\n const recType = dirSeq[i]['00041430'].value[0];\n\n // supposed to come in order...\n if (recType === 'STUDY') {\n study = [];\n records.push(study);\n } else if (recType === 'SERIES') {\n series = [];\n study.push(series);\n } else if (recType === 'IMAGE') {\n // Referenced File ID\n if (typeof dirSeq[i]['00041500'] === 'undefined' ||\n typeof dirSeq[i]['00041500'].value === 'undefined') {\n continue;\n }\n const refFileIds = dirSeq[i]['00041500'].value;\n // join ids\n series.push(refFileIds.join('/'));\n }\n }\n return records;\n}\n\n/**\n * Methods used to extract values from DICOM elements.\n *\n * Implemented as class and method to allow for override via its prototype.\n */\nexport class TagValueExtractor {\n /**\n * Get the time.\n *\n * @param {Object} _elements The DICOM elements.\n * @returns {number|undefined} The time value if available.\n */\n getTime(_elements) {\n // default returns undefined\n return undefined;\n }\n}\n","import {Size} from './size';\nimport {Geometry} from './geometry';\nimport {RescaleSlopeAndIntercept} from './rsi';\nimport {WindowLevel} from './windowLevel';\nimport {Image} from './image';\nimport {luts} from './luts';\nimport {\n isJpeg2000TransferSyntax,\n isJpegBaselineTransferSyntax,\n isJpegLosslessTransferSyntax\n} from '../dicom/dicomParser';\nimport {\n getImage2DSize,\n getPixelSpacing,\n getPixelUnit,\n TagValueExtractor,\n getSuvFactor,\n getOrientationMatrix\n} from '../dicom/dicomElementsWrapper';\nimport {Point3D} from '../math/point';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * @typedef {Object} DataElements\n */\n\n/**\n * {@link Image} factory.\n */\nexport class ImageFactory {\n\n /**\n * Possible warning created by checkElements.\n *\n * @type {string|undefined}\n */\n #warning;\n\n /**\n * The PET SUV factor.\n *\n * @type {number|undefined}\n */\n #suvFactor;\n\n /**\n * Get a warning string if elements are not as expected.\n * Created by checkElements.\n *\n * @returns {string|undefined} The warning.\n */\n getWarning() {\n return this.#warning;\n }\n\n /**\n * Check dicom elements. Throws an error if not suitable.\n *\n * @param {DataElements} dataElements The DICOM data elements.\n * @returns {string|undefined} A possible warning.\n */\n checkElements(dataElements) {\n // reset\n this.#warning = undefined;\n // will throw if columns or rows is not defined\n getImage2DSize(dataElements);\n // check PET SUV\n let modality;\n const element = dataElements['00080060'];\n if (typeof element !== 'undefined') {\n modality = element.value[0];\n if (modality === 'PT') {\n const suvFactor = getSuvFactor(dataElements);\n this.#suvFactor = suvFactor.value;\n this.#warning = suvFactor.warning;\n }\n }\n\n return this.#warning;\n }\n\n /**\n * Get an {@link Image} object from the read DICOM file.\n *\n * @param {DataElements} dataElements The DICOM tags.\n * @param {Uint8Array | Int8Array |\n * Uint16Array | Int16Array |\n * Uint32Array | Int32Array} pixelBuffer The pixel buffer.\n * @param {number} numberOfFiles The input number of files.\n * @returns {Image} A new Image.\n */\n create(dataElements, pixelBuffer, numberOfFiles) {\n const size2D = getImage2DSize(dataElements);\n const sizeValues = [size2D[0], size2D[1], 1];\n\n // NumberOfFrames\n const numberOfFramesEl = dataElements['00280008'];\n if (typeof numberOfFramesEl !== 'undefined') {\n const number = parseInt(numberOfFramesEl.value[0], 10);\n if (number > 1) {\n sizeValues.push(number);\n }\n }\n\n // image size\n const size = new Size(sizeValues);\n\n // image spacing\n const spacing = getPixelSpacing(dataElements);\n\n // TransferSyntaxUID\n const syntax = dataElements['00020010'].value[0];\n const jpeg2000 = isJpeg2000TransferSyntax(syntax);\n const jpegBase = isJpegBaselineTransferSyntax(syntax);\n const jpegLoss = isJpegLosslessTransferSyntax(syntax);\n\n // ImagePositionPatient\n const imagePositionPatient = dataElements['00200032'];\n // slice position\n let slicePosition = new Array(0, 0, 0);\n if (typeof imagePositionPatient !== 'undefined') {\n slicePosition = [\n parseFloat(imagePositionPatient.value[0]),\n parseFloat(imagePositionPatient.value[1]),\n parseFloat(imagePositionPatient.value[2])\n ];\n }\n\n // Image orientation patient\n const orientationMatrix = getOrientationMatrix(dataElements);\n\n // geometry\n const origin = new Point3D(\n slicePosition[0], slicePosition[1], slicePosition[2]);\n const extractor = new TagValueExtractor();\n const time = extractor.getTime(dataElements);\n const geometry = new Geometry(\n origin, size, spacing, orientationMatrix, time);\n\n // SOP Instance UID\n let sopInstanceUid;\n const siu = dataElements['00080018'];\n if (typeof siu !== 'undefined') {\n sopInstanceUid = siu.value[0];\n }\n\n // Sample per pixels\n let samplesPerPixel = 1;\n const spp = dataElements['00280002'];\n if (typeof spp !== 'undefined') {\n samplesPerPixel = spp.value[0];\n }\n\n // check buffer size\n const bufferSize = size.getTotalSize() * samplesPerPixel;\n if (bufferSize !== pixelBuffer.length) {\n logger.warn('Badly sized pixel buffer: ' +\n pixelBuffer.length + ' != ' + bufferSize);\n if (bufferSize < pixelBuffer.length) {\n pixelBuffer = pixelBuffer.slice(0, size.getTotalSize());\n } else {\n throw new Error('Underestimated buffer size, can\\'t fix it...');\n }\n }\n\n // image\n const image = new Image(geometry, pixelBuffer, [sopInstanceUid]);\n // PhotometricInterpretation\n const photometricInterpretation = dataElements['00280004'];\n if (typeof photometricInterpretation !== 'undefined') {\n let photo = photometricInterpretation.value[0].toUpperCase();\n // jpeg decoders output RGB data\n if ((jpeg2000 || jpegBase || jpegLoss) &&\n (photo !== 'MONOCHROME1' && photo !== 'MONOCHROME2')) {\n photo = 'RGB';\n }\n // check samples per pixels\n if (photo === 'RGB' && samplesPerPixel === 1) {\n photo = 'PALETTE COLOR';\n }\n image.setPhotometricInterpretation(photo);\n }\n // PlanarConfiguration\n const planarConfiguration = dataElements['00280006'];\n if (typeof planarConfiguration !== 'undefined') {\n image.setPlanarConfiguration(planarConfiguration.value[0]);\n }\n\n // rescale slope and intercept\n let slope = 1;\n // RescaleSlope\n const rescaleSlope = dataElements['00281053'];\n if (typeof rescaleSlope !== 'undefined') {\n const value = parseFloat(rescaleSlope.value[0]);\n if (!isNaN(value)) {\n slope = value;\n }\n }\n let intercept = 0;\n // RescaleIntercept\n const rescaleIntercept = dataElements['00281052'];\n if (typeof rescaleIntercept !== 'undefined') {\n const value = parseFloat(rescaleIntercept.value[0]);\n if (!isNaN(value)) {\n intercept = value;\n }\n }\n\n // meta information\n const meta = {\n numberOfFiles: numberOfFiles\n };\n\n // Modality\n const modality = dataElements['00080060'];\n if (typeof modality !== 'undefined') {\n meta.Modality = modality.value[0];\n }\n\n // PET SUV\n let isPetWithSuv = false;\n let intensityFactor = 1;\n if (typeof this.#suvFactor !== 'undefined') {\n isPetWithSuv = true;\n intensityFactor = this.#suvFactor;\n logger.info('Applying PET SUV calibration: ' + intensityFactor);\n slope *= intensityFactor;\n intercept *= intensityFactor;\n }\n const rsi = new RescaleSlopeAndIntercept(slope, intercept);\n image.setRescaleSlopeAndIntercept(rsi);\n\n const safeGet = function (key) {\n let res;\n const element = dataElements[key];\n if (typeof element !== 'undefined') {\n res = element.value[0];\n }\n return res;\n };\n\n // defaults\n meta.TransferSyntaxUID = safeGet('00020010');\n meta.MediaStorageSOPClassUID = safeGet('00020002');\n meta.SOPClassUID = safeGet('00080016');\n meta.Modality = safeGet('00080060');\n meta.ImageType = safeGet('00080008');\n meta.SamplesPerPixel = safeGet('00280002');\n meta.PhotometricInterpretation = safeGet('00280004');\n meta.PixelRepresentation = safeGet('00280103');\n meta.BitsAllocated = safeGet('00280100');\n meta.BitsStored = safeGet('00280101');\n meta.HighBit = safeGet('00280102');\n\n // Study\n meta.StudyDate = safeGet('00080020');\n meta.StudyTime = safeGet('00080030');\n meta.StudyInstanceUID = safeGet('0020000D');\n meta.StudyID = safeGet('00200010');\n // Series\n meta.SeriesInstanceUID = safeGet('0020000E');\n meta.SeriesNumber = safeGet('00200011');\n // ReferringPhysicianName\n meta.ReferringPhysicianName = safeGet('00080090');\n // patient info\n meta.PatientName = safeGet('00100010');\n meta.PatientID = safeGet('00100020');\n meta.PatientBirthDate = safeGet('00100030');\n meta.PatientSex = safeGet('00100040');\n // General Equipment Module\n meta.Manufacturer = safeGet('00080070');\n meta.ManufacturerModelName = safeGet('00081090');\n meta.DeviceSerialNumber = safeGet('00181000');\n meta.SoftwareVersions = safeGet('00181020');\n\n meta.ImageOrientationPatient = safeGet('00200037');\n meta.FrameOfReferenceUID = safeGet('00200052');\n\n // PixelRepresentation -> is signed\n meta.IsSigned = meta.PixelRepresentation === 1;\n // local pixel unit\n if (isPetWithSuv) {\n meta.pixelUnit = 'SUV';\n } else {\n const pixelUnit = getPixelUnit(dataElements);\n if (typeof pixelUnit !== 'undefined') {\n meta.pixelUnit = pixelUnit;\n }\n }\n // window level presets\n const windowPresets = {};\n const windowCenter = dataElements['00281050'];\n const windowWidth = dataElements['00281051'];\n const windowCWExplanation = dataElements['00281055'];\n if (typeof windowCenter !== 'undefined' &&\n typeof windowWidth !== 'undefined') {\n let name;\n for (let j = 0; j < windowCenter.value.length; ++j) {\n const center = parseFloat(windowCenter.value[j]);\n let width = parseFloat(windowWidth.value[j]);\n if (center && width && width !== 0) {\n name = '';\n if (typeof windowCWExplanation !== 'undefined') {\n name = windowCWExplanation.value[j];\n }\n if (name === '') {\n name = 'Default' + j;\n }\n width *= intensityFactor;\n if (width < 1) {\n width = 1;\n }\n windowPresets[name] = {\n wl: [new WindowLevel(\n center * intensityFactor,\n width\n )],\n name: name\n };\n }\n if (width === 0) {\n logger.warn('Zero window width found in DICOM.');\n }\n }\n }\n meta.windowPresets = windowPresets;\n\n // PALETTE COLOR luts\n if (image.getPhotometricInterpretation() === 'PALETTE COLOR') {\n // Red Palette Color Lookup Table Data\n const redLutElement = dataElements['00281201'];\n // Green Palette Color Lookup Table Data\n const greenLutElement = dataElements['00281202'];\n // Blue Palette Color Lookup Table Data\n const blueLutElement = dataElements['00281203'];\n let redLut;\n let greenLut;\n let blueLut;\n // check red palette descriptor (should all be equal)\n // Red Palette Color Lookup Table Descriptor\n // 0: number of entries in the lookup table\n // 1: first input value mapped\n // 2: number of bits for each entry in the Lookup Table Data (8 or 16)\n const descriptor = dataElements['00281101'];\n if (typeof descriptor !== 'undefined' &&\n descriptor.value.length === 3) {\n if (descriptor.value[2] === 16) {\n let doScale = false;\n // (C.7.6.3.1.5 Palette Color Lookup Table Descriptor)\n // Some implementations have encoded 8 bit entries with 16 bits\n // allocated, padding the high bits;\n let descSize = descriptor.value[0];\n // (C.7.6.3.1.5 Palette Color Lookup Table Descriptor)\n // The first Palette Color Lookup Table Descriptor value is the\n // number of entries in the lookup table. When the number of table\n // entries is equal to 216 then this value shall be 0.\n if (descSize === 0) {\n descSize = 65536;\n }\n // red palette VL\n // TODO vl is undefined, find info elsewhere...\n const vlSize = redLutElement.vl;\n // check double size\n if (vlSize !== 2 * descSize) {\n doScale = true;\n logger.info('16bits lut but size is not double. desc: ' +\n descSize + ' vl: ' + vlSize);\n }\n // (C.7.6.3.1.6 Palette Color Lookup Table Data)\n // Palette color values must always be scaled across the full\n // range of available intensities\n const bitsAllocated = parseInt(\n dataElements['00280100'].value[0], 10);\n if (bitsAllocated === 8) {\n doScale = true;\n logger.info(\n 'Scaling 16bits color lut since bits allocated is 8.');\n }\n\n if (doScale) {\n const scaleTo8 = function (value) {\n return value >> 8;\n };\n\n redLut = redLutElement.value.map(scaleTo8);\n greenLut = greenLutElement.value.map(scaleTo8);\n blueLut = blueLutElement.value.map(scaleTo8);\n }\n } else if (descriptor.value[2] === 8) {\n // lut with vr=OW was read as Uint16, convert it to Uint8\n logger.info(\n 'Scaling 16bits color lut since the lut descriptor is 8.');\n let clone = redLutElement.value.slice(0);\n // @ts-expect-error\n redLut = Array.from(new Uint8Array(clone.buffer));\n clone = greenLutElement.value.slice(0);\n // @ts-expect-error\n greenLut = Array.from(new Uint8Array(clone.buffer));\n clone = blueLutElement.value.slice(0);\n // @ts-expect-error\n blueLut = Array.from(new Uint8Array(clone.buffer));\n }\n }\n // set the palette\n luts['palette'] = {\n red: redLut,\n green: greenLut,\n blue: blueLut\n };\n }\n\n // RecommendedDisplayFrameRate\n const recommendedDisplayFrameRate = dataElements['00082144'];\n if (typeof recommendedDisplayFrameRate !== 'undefined') {\n meta.RecommendedDisplayFrameRate = parseInt(\n recommendedDisplayFrameRate.value[0], 10);\n }\n\n // store the meta data\n image.setMeta(meta);\n\n return image;\n }\n\n}","/**\n * Data writer.\n */\nexport class DataWriter {\n\n /**\n * Is the endianness Little Endian.\n *\n * @type {boolean}\n */\n #isLittleEndian = true;\n\n /**\n * The main data view.\n *\n * @type {DataView}\n */\n #view;\n\n /**\n * @param {ArrayBuffer} buffer The input array buffer.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is\n * little or big endian.\n */\n constructor(buffer, isLittleEndian) {\n // Set endian flag if not defined.\n if (typeof isLittleEndian !== 'undefined') {\n this.#isLittleEndian = isLittleEndian;\n }\n this.#view = new DataView(buffer);\n }\n\n /**\n * Write Uint8 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint8(byteOffset, value) {\n this.#view.setUint8(byteOffset, value);\n return byteOffset + Uint8Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int8 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt8(byteOffset, value) {\n this.#view.setInt8(byteOffset, value);\n return byteOffset + Int8Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Uint16 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint16(byteOffset, value) {\n this.#view.setUint16(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Uint16Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int16 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt16(byteOffset, value) {\n this.#view.setInt16(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Int16Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Uint32 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint32(byteOffset, value) {\n this.#view.setUint32(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Uint32Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Uint64 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {bigint} value The data to write.\n * @returns {number} The new offset position.\n */\n writeUint64(byteOffset, value) {\n this.#view.setBigUint64(byteOffset, value, this.#isLittleEndian);\n return byteOffset + BigUint64Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int32 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt32(byteOffset, value) {\n this.#view.setInt32(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Int32Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Int64 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {bigint} value The data to write.\n * @returns {number} The new offset position.\n */\n writeInt64(byteOffset, value) {\n this.#view.setBigInt64(byteOffset, value, this.#isLittleEndian);\n return byteOffset + BigInt64Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Float32 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeFloat32(byteOffset, value) {\n this.#view.setFloat32(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Float32Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write Float64 data.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {number} value The data to write.\n * @returns {number} The new offset position.\n */\n writeFloat64(byteOffset, value) {\n this.#view.setFloat64(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Float64Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write string data of length 4 as hexadecimal (no '0x' prefix).\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {string} str The hexadecimal string to write ('####').\n * @returns {number} The new offset position.\n */\n writeHex(byteOffset, str) {\n // remove first two chars and parse\n const value = parseInt(str, 16);\n this.#view.setUint16(byteOffset, value, this.#isLittleEndian);\n return byteOffset + Uint16Array.BYTES_PER_ELEMENT;\n }\n\n /**\n * Write a boolean array as binary.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeBinaryArray(byteOffset, array) {\n if (array.length % 8 !== 0) {\n throw new Error('Cannot write boolean array as binary.');\n }\n let byte = null;\n let val = null;\n for (let i = 0, len = array.length; i < len; i += 8) {\n byte = 0;\n for (let j = 0; j < 8; ++j) {\n val = array[i + j] === 0 ? 0 : 1;\n byte += val << j;\n }\n byteOffset = this.writeUint8(byteOffset, byte);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint8 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array|Uint8Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint8Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint8(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int8 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt8Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt8(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint16 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint16Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint16(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int16 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt16Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt16(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint32 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint32Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint32(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Uint64 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeUint64Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeUint64(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int32 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt32Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt32(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Int64 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeInt64Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeInt64(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Float32 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeFloat32Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeFloat32(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n /**\n * Write Float64 array.\n *\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} array The array to write.\n * @returns {number} The new offset position.\n */\n writeFloat64Array(byteOffset, array) {\n for (let i = 0, len = array.length; i < len; ++i) {\n byteOffset = this.writeFloat64(byteOffset, array[i]);\n }\n return byteOffset;\n }\n\n} // class DataWriter\n","import {\n is32bitVLVR,\n isCharSetStringVR,\n vrTypes\n} from './dictionary';\nimport {\n Tag,\n getTagFromDictionary,\n getTagFromKey,\n getItemTag,\n getItemDelimitationItemTag,\n getSequenceDelimitationItemTag,\n getFileMetaInformationGroupLengthTag,\n isPixelDataTag,\n isItemTag,\n isItemDelimitationItemTag,\n tagCompareFunction\n} from './dicomTag';\nimport {\n getDwvVersion,\n isImplicitTransferSyntax,\n isBigEndianTransferSyntax,\n getDataElementPrefixByteSize\n} from './dicomParser';\nimport {DataElement} from './dataElement';\nimport {DataWriter} from './dataWriter';\nimport {DataReader} from './dataReader';\nimport {logger} from '../utils/logger';\n\n/**\n * Get the dwv UID prefix.\n * Issued by Medical Connections Ltd (www.medicalconnections.co.uk)\n * on 25/10/2017.\n *\n * @returns {string} The dwv UID prefix.\n */\nfunction getDwvUIDPrefix() {\n return '1.2.826.0.1.3680043.9.7278.1';\n}\n\n// local generated uid counter\nlet _uidCount = 0;\n\n/**\n * Writer rule.\n */\nexport class WriterRule {\n /**\n * Rule action: `copy`, `remove`, `clear` or `replace`.\n *\n * @type {string}\n */\n action;\n /**\n * Optional value to use for replace action.\n *\n * @type {any|undefined}\n */\n value;\n\n /**\n * @param {string} action The rule action.\n */\n constructor(action) {\n this.action = action;\n }\n}\n\n/**\n * Possible writer actions.\n *\n * @type {Object}\n */\nconst writerActions = {\n copy: function (item) {\n return item;\n },\n remove: function () {\n return null;\n },\n clear: function (item) {\n item.value = [];\n return item;\n },\n replace: function (item, value) {\n item.value = [value];\n return item;\n }\n};\n\n/**\n * Get simple (non official) DICOM anonymisation rules.\n *\n * @returns {Object} The rules.\n */\nexport function getDefaultAnonymisationRules() {\n return {\n default: {action: 'copy', value: null},\n PatientName: {action: 'replace', value: 'Anonymized'}, // tag\n 'Meta Element': {action: 'copy', value: null}, // group '0002'\n Acquisition: {action: 'copy', value: null}, // group '0018'\n 'Image Presentation': {action: 'copy', value: null}, // group '0028'\n Procedure: {action: 'copy', value: null}, // group '0040'\n 'Pixel Data': {action: 'copy', value: null} // group '7fe0'\n };\n}\n\n/**\n * Get a UID for a DICOM tag.\n *\n * Note: Use {@link https://github.com/uuidjs/uuid}?\n *\n * Ref:\n * - {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/chapter_9.html},\n * - {@link http://dicomiseasy.blogspot.com/2011/12/chapter-4-dicom-objects-in-chapter-3.html},\n * - {@link https://stackoverflow.com/questions/46304306/how-to-generate-unique-dicom-uid}.\n *\n * @param {string} tagName The input tag.\n * @returns {string} The corresponding UID.\n */\nexport function getUID(tagName) {\n const prefix = getDwvUIDPrefix() + '.';\n let uid = '';\n if (tagName === 'ImplementationClassUID') {\n uid = prefix + getDwvVersion();\n } else {\n // date (only numbers), do not keep milliseconds\n const date = (new Date()).toISOString().replace(/\\D/g, '');\n const datePart = '.' + date.substring(0, 14);\n // count\n _uidCount += 1;\n const countPart = '.' + _uidCount;\n\n // uid = prefix . tag . date . count\n uid = prefix;\n\n // limit tag part to not exceed 64 length\n const nonTagLength = prefix.length + countPart.length + datePart.length;\n const leni = Math.min(tagName.length, 64 - nonTagLength);\n if (leni > 1) {\n let tagNumber = '';\n for (let i = 0; i < leni; ++i) {\n tagNumber += tagName.charCodeAt(i);\n }\n uid += tagNumber.substring(0, leni);\n }\n\n // finish\n uid += datePart + countPart;\n }\n return uid;\n}\n\n/**\n * Return true if the input number is even.\n *\n * @param {number} number The number to check.\n * @returns {boolean} True is the number is even.\n */\nfunction isEven(number) {\n return number % 2 === 0;\n}\n\n/**\n * Is the input VR a VR that stores data in a typed array.\n * TODO: include ox and xs?\n *\n * @param {string} vr The element VR.\n * @returns {boolean} True if the VR is a typed array one.\n */\nfunction isTypedArrayVr(vr) {\n const vrType = vrTypes[vr];\n return typeof vrType !== 'undefined' &&\n vrType !== 'string';\n}\n\n/**\n * Is the input VR a string VR.\n *\n * @param {string} vr The element VR.\n * @returns {boolean} True if the VR is a string one.\n */\nfunction isStringVr(vr) {\n const vrType = vrTypes[vr];\n return typeof vrType !== 'undefined' &&\n vrType === 'string';\n}\n\n/**\n * Is the input VR a VR that could need padding.\n *\n * See {@link http://dicom.nema.org/medical/dicom/2022a/output/chtml/part05/sect_6.2.html}.\n *\n * @param {string} vr The element VR.\n * @returns {boolean} True if the VR needs padding.\n */\nfunction isVrToPad(vr) {\n return isStringVr(vr) || vr === 'OB';\n}\n\n/**\n * Get the VR specific padding value.\n *\n * @param {string} vr The element VR.\n * @returns {string} The value used to pad.\n */\nfunction getVrPad(vr) {\n let pad = '';\n if (isStringVr(vr)) {\n if (vr === 'UI') {\n pad = '\\0';\n } else {\n pad = ' ';\n }\n }\n return pad;\n}\n\n/**\n * Push a value at the end of an input Uint8Array.\n *\n * @param {Array|Uint8Array} arr The input array.\n * @param {Array|Uint8Array} value The value to push.\n * @returns {Uint8Array} The new array.\n */\nfunction uint8ArrayPush(arr, value) {\n const newArr = new Uint8Array(arr.length + 1);\n newArr.set(arr);\n newArr.set(value, arr.length);\n return newArr;\n}\n\n/**\n * Pad an input OB value.\n *\n * @param {Array|Uint8Array} value The input value.\n * @returns {Array|Uint8Array} The padded input.\n */\nfunction padOBValue(value) {\n if (value !== null &&\n typeof value !== 'undefined' &&\n typeof value.length !== 'undefined') {\n // calculate size and pad if needed\n if (value.length !== 0 &&\n typeof value[0].length !== 'undefined') {\n // handle array of array\n let size = 0;\n for (let i = 0; i < value.length; ++i) {\n size += value[i].length;\n }\n if (!isEven(size)) {\n value[value.length - 1] = uint8ArrayPush(\n value[value.length - 1], [0]);\n }\n } else {\n if (!isEven(value.length)) {\n value = uint8ArrayPush(value, [0]);\n }\n }\n } else {\n throw new Error('Cannot pad undefined or null OB value.');\n }\n // uint8ArrayPush may create a new array so we\n // need to return it\n return value;\n}\n\n/**\n * Helper method to flatten an array of typed arrays to 2D typed array.\n *\n * @param {Array} initialArray Array of typed arrays.\n * @returns {object} A typed array containing all values.\n */\nfunction flattenArrayOfTypedArrays(initialArray) {\n const initialArrayLength = initialArray.length;\n const arrayLength = initialArray[0].length;\n // If this is not a array of arrays, just return the initial one:\n if (typeof arrayLength === 'undefined') {\n return initialArray;\n }\n\n const flattenendArrayLength = initialArrayLength * arrayLength;\n\n const flattenedArray = new initialArray[0].constructor(flattenendArrayLength);\n\n for (let i = 0; i < initialArrayLength; i++) {\n const indexFlattenedArray = i * arrayLength;\n flattenedArray.set(initialArray[i], indexFlattenedArray);\n }\n return flattenedArray;\n}\n\n/**\n * Default text encoder.\n */\nclass DefaultTextEncoder {\n /**\n * Encode an input string.\n *\n * @param {string} str The string to encode.\n * @returns {Uint8Array} The encoded string.\n */\n encode(str) {\n const result = new Uint8Array(str.length);\n for (let i = 0, leni = str.length; i < leni; ++i) {\n result[i] = str.charCodeAt(i);\n }\n return result;\n }\n}\n\n/**\n * Small list of used tag keys.\n */\nconst TagKeys = {\n TransferSyntax: '00020010',\n SpecificCharacterSet: '00080005',\n BitsAllocated: '00280100',\n};\n\n/**\n * DICOM writer.\n *\n * @example\n * // add link to html\n * const link = document.createElement(\"a\");\n * link.appendChild(document.createTextNode(\"download\"));\n * const div = document.getElementById(\"dwv\");\n * div.appendChild(link);\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * const parser = new dwv.DicomParser();\n * parser.parse(event.target.response);\n * // create writer\n * const writer = new dwv.DicomWriter();\n * // get buffer using default rules\n * const dicomBuffer = writer.getBuffer(parser.getDicomElements());\n * // create blob\n * const blob = new Blob([dicomBuffer], {type: 'application/dicom'});\n * // add blob to download link\n * link.href = URL.createObjectURL(blob);\n * link.download = \"anonym.dcm\";\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class DicomWriter {\n\n /**\n * Flag to use VR=UN for private sequences, default to false\n * (mainly used in tests).\n *\n * @type {boolean}\n */\n #useUnVrForPrivateSq = false;\n\n /**\n * Flag to activate or not the vr=UN tag check and fix\n * if present in the dictionary. Default to true.\n *\n * @type {boolean}\n */\n #fixUnknownVR = true;\n\n /**\n * Default rules: just copy.\n *\n * @type {Object}\n */\n #defaultRules = {\n default: {action: 'copy', value: null}\n };\n\n /**\n * Writing rules.\n *\n * @type {Object}\n */\n #rules = this.#defaultRules;\n\n /**\n * List of compulsory tags keys.\n *\n * @type {string[]}\n */\n #compulsoryTags = [];\n\n /**\n * Default text encoder.\n *\n * @type {DefaultTextEncoder}\n */\n #defaultTextEncoder = new DefaultTextEncoder();\n\n /**\n * Special text encoder.\n *\n * @type {DefaultTextEncoder|TextEncoder}\n */\n #textEncoder = this.#defaultTextEncoder;\n\n /**\n * Set the use UN VR for private sequence flag.\n *\n * @param {boolean} flag True to use UN VR.\n */\n setUseUnVrForPrivateSq(flag) {\n this.#useUnVrForPrivateSq = flag;\n }\n\n /**\n * Set the vr=UN check and fix flag.\n *\n * @param {boolean} flag True to activate the check and fix.\n */\n setFixUnknownVR(flag) {\n this.#fixUnknownVR = flag;\n }\n\n /**\n * Set the writing rules.\n * List of writer rules indexed by either `default`,\n * tagKey, tagName or groupName.\n * Each DICOM element will be checked to see if a rule is applicable.\n * First checked by tagKey, tagName and then by groupName,\n * if nothing is found the default rule is applied.\n *\n * @param {Object} rules The input rules.\n * @param {boolean} [addMissingTags] If true, explicit tags that\n * have replace rule and a value will be\n * added if missing. Defaults to false.\n */\n setRules(rules, addMissingTags) {\n this.#rules = rules;\n\n // default compulsory list is empty\n this.#compulsoryTags = [];\n\n // use replace rule tags as compulsory tags\n if (addMissingTags) {\n const keys = Object.keys(rules);\n for (const key of keys) {\n const rule = rules[key];\n if (rule.action === 'replace' &&\n typeof rule.value !== 'undefined' &&\n rule.value !== null) {\n // check if key really exists\n let isKey = false;\n if (key.length === 8) {\n const tag = getTagFromKey(key);\n isKey = typeof tag.getNameFromDictionary() !== 'undefined';\n }\n // get tag key, rules can use key or tag name\n let tagKey;\n if (isKey) {\n tagKey = key;\n } else {\n // try tag name\n const tag = getTagFromDictionary(key);\n if (typeof tag !== 'undefined') {\n tagKey = tag.getKey();\n }\n }\n // add to list\n if (typeof tagKey !== 'undefined') {\n this.#compulsoryTags.push(tagKey);\n }\n }\n }\n }\n }\n\n /**\n * Encode string data.\n *\n * @param {string} str The string to encode.\n * @returns {Uint8Array} The encoded string.\n */\n #encodeString(str) {\n return this.#defaultTextEncoder.encode(str);\n }\n\n /**\n * Encode data as a UTF-8.\n *\n * @param {string} str The string to write.\n * @returns {Uint8Array} The encoded string.\n */\n #encodeSpecialString(str) {\n return this.#textEncoder.encode(str);\n }\n\n /**\n * Use a TextEncoder instead of the default text decoder.\n */\n useSpecialTextEncoder() {\n /**\n * The text encoder.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/TextEncoder}.\n *\n * @external TextEncoder\n */\n this.#textEncoder = new TextEncoder();\n }\n\n /**\n * Get the element to write according to the class rules.\n * Priority order: tagName, groupName, default.\n *\n * @param {DataElement} element The element to check.\n * @returns {DataElement|null} The element to write, can be null.\n */\n getElementToWrite(element) {\n // get group and tag string name\n const groupName = element.tag.getGroupName();\n const tagName = element.tag.getNameFromDictionary();\n\n // apply rules:\n let rule;\n if (typeof this.#rules[element.tag.getKey()] !== 'undefined') {\n // 1. tag itself\n rule = this.#rules[element.tag.getKey()];\n } else if (typeof tagName !== 'undefined' &&\n typeof this.#rules[tagName] !== 'undefined') {\n // 2. tag name\n rule = this.#rules[tagName];\n } else if (typeof this.#rules[groupName] !== 'undefined') {\n // 3. group name\n rule = this.#rules[groupName];\n } else {\n // 4. default\n rule = this.#rules['default'];\n }\n // apply action on element and return\n return writerActions[rule.action](element, rule.value);\n }\n\n /**\n * Write a list of items.\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} items The list of items to write.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writeDataElementItems(\n writer, byteOffset, items, isImplicit) {\n let item;\n for (let i = 0; i < items.length; ++i) {\n item = items[i];\n if (item.length === 0) {\n continue;\n }\n // item element (create new to not modify original)\n let undefinedLength = false;\n const itemTag = item.find((subItem) => isItemTag(subItem.tag));\n if (typeof itemTag !== 'undefined' &&\n typeof itemTag.undefinedLength !== 'undefined') {\n undefinedLength = itemTag.undefinedLength;\n }\n const itemElement = new DataElement('NONE');\n itemElement.vl = undefinedLength ? 0xffffffff : itemTag.vl,\n itemElement.tag = getItemTag();\n itemElement.value = [];\n byteOffset = this.#writeDataElement(\n writer, itemElement, byteOffset, isImplicit);\n // write rest\n for (const subItem of item) {\n if (!isItemTag(subItem.tag) &&\n !isItemDelimitationItemTag(subItem.tag)) {\n byteOffset = this.#writeDataElement(\n writer, subItem, byteOffset, isImplicit);\n }\n }\n // item delimitation\n if (undefinedLength) {\n const itemDelimElement = new DataElement('NONE');\n itemDelimElement.vl = 0;\n itemDelimElement.tag = getItemDelimitationItemTag();\n itemDelimElement.value = [];\n byteOffset = this.#writeDataElement(\n writer, itemDelimElement, byteOffset, isImplicit);\n }\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Write data with a specific Value Representation (VR).\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {DataElement} element The element to write.\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} value The array to write.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writeDataElementValue(\n writer, element, byteOffset, value, isImplicit) {\n\n const startOffset = byteOffset;\n\n if (element.vr === 'NONE') {\n // nothing to do!\n } else if (value instanceof Uint8Array) {\n // binary data has been expanded 8 times at read\n if (value.length === 8 * element.vl) {\n byteOffset = writer.writeBinaryArray(byteOffset, value);\n } else {\n byteOffset = writer.writeUint8Array(byteOffset, value);\n }\n } else if (value instanceof Int8Array) {\n byteOffset = writer.writeInt8Array(byteOffset, value);\n } else if (value instanceof Uint16Array) {\n byteOffset = writer.writeUint16Array(byteOffset, value);\n } else if (value instanceof Int16Array) {\n byteOffset = writer.writeInt16Array(byteOffset, value);\n } else if (value instanceof Uint32Array) {\n byteOffset = writer.writeUint32Array(byteOffset, value);\n } else if (value instanceof Int32Array) {\n byteOffset = writer.writeInt32Array(byteOffset, value);\n } else if (value instanceof BigUint64Array) {\n byteOffset = writer.writeUint64Array(byteOffset, value);\n } else if (value instanceof BigInt64Array) {\n byteOffset = writer.writeInt64Array(byteOffset, value);\n } else {\n // switch according to VR if input type is undefined\n const vrType = vrTypes[element.vr];\n if (typeof vrType !== 'undefined') {\n if (vrType === 'Uint8') {\n byteOffset = writer.writeUint8Array(byteOffset, value);\n } else if (vrType === 'Uint16') {\n byteOffset = writer.writeUint16Array(byteOffset, value);\n } else if (vrType === 'Int16') {\n byteOffset = writer.writeInt16Array(byteOffset, value);\n } else if (vrType === 'Uint32') {\n byteOffset = writer.writeUint32Array(byteOffset, value);\n } else if (vrType === 'Int32') {\n byteOffset = writer.writeInt32Array(byteOffset, value);\n } else if (vrType === 'Uint64') {\n byteOffset = writer.writeUint64Array(byteOffset, value);\n } else if (vrType === 'Int64') {\n byteOffset = writer.writeInt64Array(byteOffset, value);\n } else if (vrType === 'Float32') {\n byteOffset = writer.writeFloat32Array(byteOffset, value);\n } else if (vrType === 'Float64') {\n byteOffset = writer.writeFloat64Array(byteOffset, value);\n } else if (vrType === 'string') {\n byteOffset = writer.writeUint8Array(byteOffset, value);\n } else {\n throw new Error('Unknown VR type: ' + vrType);\n }\n } else if (element.vr === 'SQ') {\n byteOffset = this.#writeDataElementItems(\n writer, byteOffset, value, isImplicit);\n } else if (element.vr === 'AT') {\n for (let i = 0; i < value.length; ++i) {\n const hexString = value[i] + '';\n const hexString1 = hexString.substring(1, 5);\n const hexString2 = hexString.substring(6, 10);\n const dec1 = parseInt(hexString1, 16);\n const dec2 = parseInt(hexString2, 16);\n const atValue = [dec1, dec2];\n byteOffset = writer.writeUint16Array(byteOffset, atValue);\n }\n } else if (element.vr === 'xs') {\n // TODO would be better to use pixelRepresentation in if\n if (value instanceof Int16Array) {\n byteOffset = writer.writeInt16Array(byteOffset, value);\n } else {\n byteOffset = writer.writeUint16Array(byteOffset, value);\n }\n } else {\n logger.warn('Unknown VR: ' + element.vr);\n }\n }\n\n if (element.vr !== 'SQ' && element.vr !== 'NONE') {\n const diff = byteOffset - startOffset;\n if (diff !== element.vl) {\n let message = 'Offset difference and VL are not equal: ' +\n diff + ' != ' + element.vl;\n message += ' (';\n if (typeof element.tag !== 'undefined') {\n message += element.tag + ', ';\n }\n message += 'vr:' + element.vr + ')';\n logger.warn(message);\n }\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Write a pixel data element.\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {DataElement} element The element to write.\n * @param {number} byteOffset The offset to start writing from.\n * @param {Array} value The array to write.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writePixelDataElementValue(\n writer, element, byteOffset, value, isImplicit) {\n // undefined length flag\n let undefinedLength = false;\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLength = element.undefinedLength;\n }\n // explicit length\n if (!undefinedLength) {\n let finalValue = value[0];\n // flatten multi frame\n if (value.length > 1) {\n finalValue = flattenArrayOfTypedArrays(value);\n }\n // write\n byteOffset = this.#writeDataElementValue(\n writer, element, byteOffset, finalValue, isImplicit);\n } else {\n // pixel data as sequence\n const item = {};\n // first item: basic offset table\n item['FFFEE000'] = {\n tag: getItemTag(),\n vr: 'NONE',\n vl: 0,\n value: []\n };\n // data\n for (let i = 0; i < value.length; ++i) {\n item[i] = {\n tag: getItemTag(),\n vr: element.vr,\n vl: value[i].length,\n value: value[i]\n };\n }\n // write\n byteOffset = this.#writeDataElementItems(\n writer, byteOffset, [item], isImplicit);\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Write a data element.\n *\n * @param {DataWriter} writer The raw data writer.\n * @param {DataElement} element The DICOM data element to write.\n * @param {number} byteOffset The offset to start writing from.\n * @param {boolean} isImplicit Is the DICOM VR implicit?\n * @returns {number} The new offset position.\n */\n #writeDataElement(\n writer, element, byteOffset, isImplicit) {\n const isTagWithVR = element.tag.isWithVR();\n const is32bitVL = (isImplicit || !isTagWithVR)\n ? true : is32bitVLVR(element.vr);\n // group\n byteOffset = writer.writeHex(byteOffset, element.tag.getGroup());\n // element\n byteOffset = writer.writeHex(byteOffset, element.tag.getElement());\n // VR\n let vr = element.vr;\n // use VR=UN for private sequence\n if (this.#useUnVrForPrivateSq &&\n element.tag.isPrivate() &&\n vr === 'SQ') {\n logger.warn('Write element using VR=UN for private sequence.');\n vr = 'UN';\n }\n if (isTagWithVR && !isImplicit) {\n byteOffset = writer.writeUint8Array(byteOffset, this.#encodeString(vr));\n // reserved 2 bytes for 32bit VL\n if (is32bitVL) {\n byteOffset += 2;\n }\n }\n\n let undefinedLengthSequence = false;\n if (element.vr === 'SQ' ||\n isPixelDataTag(element.tag)) {\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLengthSequence = element.undefinedLength;\n }\n }\n let undefinedLengthItem = false;\n if (isItemTag(element.tag)) {\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLengthItem = element.undefinedLength;\n }\n }\n\n // update vl for sequence or item with undefined length\n let vl = element.vl;\n if (undefinedLengthSequence || undefinedLengthItem) {\n vl = 0xffffffff;\n }\n // VL\n if (is32bitVL) {\n byteOffset = writer.writeUint32(byteOffset, vl);\n } else {\n byteOffset = writer.writeUint16(byteOffset, vl);\n }\n\n // value\n let value = element.value;\n // check value\n if (typeof value === 'undefined') {\n value = [];\n }\n // write\n if (isPixelDataTag(element.tag)) {\n byteOffset = this.#writePixelDataElementValue(\n writer, element, byteOffset, value, isImplicit);\n } else {\n byteOffset = this.#writeDataElementValue(\n writer, element, byteOffset, value, isImplicit);\n }\n\n // sequence delimitation item for sequence with undefined length\n if (undefinedLengthSequence) {\n const seqDelimElement = new DataElement('NONE');\n seqDelimElement.vl = 0;\n seqDelimElement.tag = getSequenceDelimitationItemTag();\n seqDelimElement.value = [];\n byteOffset = this.#writeDataElement(\n writer, seqDelimElement, byteOffset, isImplicit);\n }\n\n // return new offset\n return byteOffset;\n }\n\n /**\n * Get the ArrayBuffer corresponding to input DICOM elements.\n *\n * @param {Object} dataElements The elements to write.\n * @returns {ArrayBuffer} The elements as a buffer.\n */\n getBuffer(dataElements) {\n // Transfer Syntax\n const syntax = dataElements[TagKeys.TransferSyntax].value[0];\n const isImplicit = isImplicitTransferSyntax(syntax);\n const isBigEndian = isBigEndianTransferSyntax(syntax);\n // Specific CharacterSet\n if (typeof dataElements[TagKeys.SpecificCharacterSet] !== 'undefined') {\n const oldscs = dataElements[TagKeys.SpecificCharacterSet].value[0];\n // force UTF-8 if not default character set\n if (typeof oldscs !== 'undefined' && oldscs !== 'ISO-IR 6') {\n logger.debug('Change charset to UTF, was: ' + oldscs);\n this.useSpecialTextEncoder();\n dataElements[TagKeys.SpecificCharacterSet].value = ['ISO_IR 192'];\n }\n }\n // Bits Allocated (for image data)\n let bitsAllocated;\n if (typeof dataElements[TagKeys.BitsAllocated] !== 'undefined') {\n bitsAllocated = dataElements[TagKeys.BitsAllocated].value[0];\n }\n\n // calculate buffer size and split elements (meta and non meta)\n let totalSize = 128 + 4; // DICM\n let localSize = 0;\n const metaElements = [];\n const rawElements = [];\n let element;\n let groupName;\n let metaLength = 0;\n // FileMetaInformationGroupLength\n const fmiglTag = getFileMetaInformationGroupLengthTag();\n // FileMetaInformationVersion\n const fmivTag = new Tag('0002', '0001');\n // ImplementationClassUID\n const icUIDTag = new Tag('0002', '0012');\n // ImplementationVersionName\n const ivnTag = new Tag('0002', '0013');\n\n // missing tag list: start as a copy of compulsory\n const missingTags = this.#compulsoryTags.slice();\n\n // loop through elements to get the buffer size\n const keys = Object.keys(dataElements);\n for (let i = 0, leni = keys.length; i < leni; ++i) {\n const originalElement = dataElements[keys[i]];\n originalElement.tag = getTagFromKey(keys[i]);\n element = this.getElementToWrite(originalElement);\n if (element !== null &&\n !fmiglTag.equals(element.tag) &&\n !fmivTag.equals(element.tag) &&\n !icUIDTag.equals(element.tag) &&\n !ivnTag.equals(element.tag)) {\n localSize = 0;\n\n // check if compulsory tag, if present remove from missing list\n const index = missingTags.indexOf(element.tag.getKey());\n if (index !== -1) {\n missingTags.splice(index, 1);\n }\n\n // XB7 2020-04-17\n // Check if UN can be converted to correct VR.\n // This check must be done BEFORE calculating totalSize,\n // otherwise there may be extra null bytes at the end of the file\n // (dcmdump may crash because of these bytes)\n if (this.#fixUnknownVR) {\n checkAndFixUnknownVR(element, !isBigEndian);\n }\n\n // update value and vl\n this.#setElementValue(\n element, element.value, isImplicit, bitsAllocated);\n\n // tag group name\n groupName = element.tag.getGroupName();\n\n // prefix\n if (groupName === 'Meta Element') {\n localSize += getDataElementPrefixByteSize(element.vr, false);\n } else {\n localSize += getDataElementPrefixByteSize(\n element.vr, isImplicit);\n }\n\n // value\n localSize += element.vl;\n\n // sort elements\n if (groupName === 'Meta Element') {\n metaElements.push(element);\n metaLength += localSize;\n } else {\n rawElements.push(element);\n }\n\n // add to total size\n totalSize += localSize;\n }\n }\n\n // add compulsory tags to output data if not present\n for (const key of missingTags) {\n const tag = getTagFromKey(key);\n const dataElement = new DataElement(tag.getVrFromDictionary());\n dataElement.tag = tag;\n // rules are indexed by key or tag name\n let value;\n if (typeof this.#rules[key] !== 'undefined') {\n value = this.#rules[key].value;\n } else {\n const name = tag.getNameFromDictionary();\n value = this.#rules[name].value;\n }\n // add element\n let size = getDataElementPrefixByteSize(dataElement.vr, isImplicit);\n size += this.#setElementValue(dataElement, [value], isImplicit);\n rawElements.push(dataElement);\n totalSize += size;\n }\n\n // FileMetaInformationVersion\n const fmiv = getDataElement('FileMetaInformationVersion');\n let fmivSize = getDataElementPrefixByteSize(fmiv.vr, false);\n fmivSize += this.#setElementValue(fmiv, [0, 1], false);\n metaElements.push(fmiv);\n metaLength += fmivSize;\n totalSize += fmivSize;\n // ImplementationClassUID\n const icUID = getDataElement('ImplementationClassUID');\n let icUIDSize = getDataElementPrefixByteSize(icUID.vr, false);\n const icUIDValue =\n getUID('ImplementationClassUID').replace('-beta', '.99');\n icUIDSize += this.#setElementValue(icUID, [icUIDValue], false);\n metaElements.push(icUID);\n metaLength += icUIDSize;\n totalSize += icUIDSize;\n // ImplementationVersionName\n const ivn = getDataElement('ImplementationVersionName');\n let ivnSize = getDataElementPrefixByteSize(ivn.vr, false);\n const dwvVersion = getDwvVersion().replace('-beta', '.99');\n const ivnValue = 'DWV_' + dwvVersion;\n ivnSize += this.#setElementValue(ivn, [ivnValue], false);\n metaElements.push(ivn);\n metaLength += ivnSize;\n totalSize += ivnSize;\n\n // sort elements\n const elemSortFunc = function (a, b) {\n return tagCompareFunction(a.tag, b.tag);\n };\n metaElements.sort(elemSortFunc);\n rawElements.sort(elemSortFunc);\n\n // create the FileMetaInformationGroupLength element\n const fmigl = getDataElement('FileMetaInformationGroupLength');\n let fmiglSize = getDataElementPrefixByteSize(fmigl.vr, false);\n fmiglSize += this.#setElementValue(\n fmigl, new Uint32Array([metaLength]), false);\n totalSize += fmiglSize;\n\n // create buffer\n const buffer = new ArrayBuffer(totalSize);\n const metaWriter = new DataWriter(buffer);\n const dataWriter = new DataWriter(buffer, !isBigEndian);\n\n let offset = 128;\n // DICM\n offset = metaWriter.writeUint8Array(offset, this.#encodeString('DICM'));\n // FileMetaInformationGroupLength\n offset = this.#writeDataElement(metaWriter, fmigl, offset, false);\n // write meta\n for (let j = 0, lenj = metaElements.length; j < lenj; ++j) {\n offset = this.#writeDataElement(\n metaWriter, metaElements[j], offset, false);\n }\n\n // check meta position\n const preambleSize = 128 + 4;\n const metaOffset = preambleSize + fmiglSize + metaLength;\n if (offset !== metaOffset) {\n logger.warn('Bad size calculation... meta offset: ' + offset +\n ', calculated size:' + metaOffset +\n ' (diff:' + (offset - metaOffset) + ')');\n }\n\n // write non meta\n for (let k = 0, lenk = rawElements.length; k < lenk; ++k) {\n offset = this.#writeDataElement(\n dataWriter, rawElements[k], offset, isImplicit);\n }\n\n // check final position\n if (offset !== totalSize) {\n logger.warn('Bad size calculation... final offset: ' + offset +\n ', calculated size:' + totalSize +\n ' (diff:' + (offset - totalSize) + ')');\n }\n // return\n return buffer;\n }\n\n /**\n * Set a DICOM element value according to its VR (Value Representation).\n *\n * @param {DataElement} element The DICOM element to set the value.\n * @param {object} value The value to set.\n * @param {boolean} isImplicit Does the data use implicit VR?\n * @param {number} [bitsAllocated] Bits allocated used for pixel data.\n * @returns {number} The total element size.\n */\n #setElementValue(\n element, value, isImplicit, bitsAllocated) {\n // byte size of the element\n let size = 0;\n // special sequence case\n if (element.vr === 'SQ') {\n\n if (value !== null && value !== 0) {\n const newItems = [];\n\n // explicit or undefined length sequence\n let undefinedLength = false;\n if (typeof element.undefinedLength !== 'undefined') {\n undefinedLength = element.undefinedLength;\n delete element.undefinedLength;\n }\n\n // items\n for (let i = 0; i < value.length; ++i) {\n const oldItemElements = value[i];\n const newItemElements = [];\n let subSize = 0;\n\n // check data\n if (oldItemElements === null || oldItemElements === 0) {\n continue;\n }\n\n // possible local bitsAllocated\n let sqBitsAllocated = bitsAllocated;\n const dataElement = oldItemElements[TagKeys.BitsAllocated];\n if (typeof dataElement !== 'undefined' &&\n typeof dataElement.value !== 'undefined') {\n sqBitsAllocated = dataElement.value[0];\n }\n\n // elements\n const itemKeys = Object.keys(oldItemElements);\n for (let j = 0, lenj = itemKeys.length; j < lenj; ++j) {\n const itemKey = itemKeys[j];\n const subElement = oldItemElements[itemKey];\n subElement.tag = getTagFromKey(itemKey);\n\n if (isItemTag(subElement.tag)) {\n continue;\n }\n // set item value\n subSize += this.#setElementValue(\n subElement, subElement.value, isImplicit, sqBitsAllocated);\n newItemElements.push(subElement);\n // add prefix size\n subSize += getDataElementPrefixByteSize(\n subElement.vr, isImplicit);\n }\n\n // add item element (used to store its size)\n const itemElement = {\n tag: getItemTag(),\n vr: 'NONE',\n vl: subSize,\n value: []\n };\n if (undefinedLength) {\n itemElement.undefinedLength = undefinedLength;\n }\n newItemElements.push(itemElement);\n subSize += getDataElementPrefixByteSize(\n itemElement.vr, isImplicit);\n\n // add item delimitation size\n if (undefinedLength) {\n subSize += getDataElementPrefixByteSize(\n 'NONE', isImplicit);\n }\n\n // sort\n const elemSortFunc = function (a, b) {\n return tagCompareFunction(a.tag, b.tag);\n };\n newItemElements.sort(elemSortFunc);\n\n size += subSize;\n newItems.push(newItemElements);\n }\n\n // add sequence delimitation size\n if (undefinedLength) {\n size += getDataElementPrefixByteSize('NONE', isImplicit);\n }\n\n // update sequence element\n element.value = newItems;\n element.vl = size;\n if (undefinedLength) {\n element.undefinedLength = undefinedLength;\n }\n }\n } else {\n // pad if necessary\n if (isVrToPad(element.vr)) {\n const padStr = getVrPad(element.vr);\n // encode string\n // TODO: not sure for UN...\n if (isStringVr(element.vr)) {\n let pad;\n if (isCharSetStringVR(element.vr)) {\n value = this.#encodeSpecialString(value.join('\\\\'));\n pad = this.#encodeSpecialString(padStr);\n } else {\n value = this.#encodeString(value.join('\\\\'));\n pad = this.#encodeString(padStr);\n }\n if (!isEven(value.length)) {\n value = uint8ArrayPush(value, pad);\n }\n } else if (element.vr === 'OB') {\n value = padOBValue(value);\n }\n }\n\n // calculate byte size\n size = 0;\n if (element.vr === 'AT') {\n size = 4 * value.length;\n } else if (element.vr === 'xs') {\n size = value.length * Uint16Array.BYTES_PER_ELEMENT;\n } else if (isTypedArrayVr(element.vr) || element.vr === 'ox') {\n if (isPixelDataTag(element.tag) &&\n Array.isArray(value)) {\n size = 0;\n for (let b = 0; b < value.length; ++b) {\n size += value[b].length;\n }\n } else {\n size = value.length;\n }\n\n // convert size to bytes\n const vrType = vrTypes[element.vr];\n if (isPixelDataTag(element.tag) || element.vr === 'ox') {\n if (element.undefinedLength) {\n const itemPrefixSize =\n getDataElementPrefixByteSize('NONE', isImplicit);\n // offset table\n size += itemPrefixSize;\n // pixel items\n size += itemPrefixSize * value.length;\n // add sequence delimitation size\n size += itemPrefixSize;\n } else {\n // use bitsAllocated for pixel data\n // no need to multiply for 8 bits\n if (typeof bitsAllocated !== 'undefined') {\n if (bitsAllocated === 1) {\n // binary data\n size /= 8;\n } else if (bitsAllocated === 16) {\n size *= Uint16Array.BYTES_PER_ELEMENT;\n }\n }\n }\n } else if (typeof vrType !== 'undefined') {\n const bpe = getBpeForVrType(vrType);\n if (typeof bpe !== 'undefined') {\n size *= bpe;\n } else {\n throw new Error('Unknown bytes per element for VR type: ' + vrType);\n }\n } else {\n throw new Error('Unsupported element: ' + element.vr);\n }\n } else {\n size = value.length;\n }\n\n element.value = value;\n element.vl = size;\n }\n\n // return the size of that data\n return size;\n }\n\n} // class DicomWriter\n\n/**\n * Fix for broken DICOM elements: replace \"UN\" with correct VR if the\n * element exists in dictionary.\n *\n * @param {DataElement} element The DICOM element.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is little\n * or big endian (default: true).\n */\nfunction checkAndFixUnknownVR(element, isLittleEndian) {\n if (element.vr === 'UN') {\n const dictVr = element.tag.getVrFromDictionary();\n if (typeof dictVr !== 'undefined' && element.vr !== dictVr) {\n element.vr = dictVr;\n // cast typed array value from Uint8 to vr type\n const vrType = vrTypes[element.vr];\n if (typeof vrType !== 'undefined' &&\n vrType !== 'Uint8' &&\n vrType !== 'string') {\n const data = getUint8ToVrValue(\n element.value, element.vr, isLittleEndian);\n if (typeof data !== 'undefined') {\n element.value = data;\n }\n }\n logger.info('Element ' + element.tag.getGroup() +\n ' ' + element.tag.getElement() +\n ' VR changed from UN to ' + element.vr);\n }\n }\n}\n\n/**\n * Get the casted typed array value from Uint8 to vr type.\n *\n * @param {object} value The value to cast.\n * @param {string} vr The DICOM element VR.\n * @param {boolean} [isLittleEndian] Flag to tell if the data is little\n * or big endian (default: true).\n * @returns {object} The element value casted to the vr type.\n */\nfunction getUint8ToVrValue(value, vr, isLittleEndian) {\n let data;\n if (typeof value.buffer === 'undefined') {\n return data;\n }\n const reader = new DataReader(value.buffer, isLittleEndian);\n const offset = value.byteOffset;\n const vl = value.length; // size before cast\n const vrType = vrTypes[vr];\n if (vrType === 'Uint16') {\n data = reader.readUint16Array(offset, vl);\n } else if (vrType === 'Uint32') {\n data = reader.readUint32Array(offset, vl);\n } else if (vrType === 'Uint64') {\n data = reader.readUint64Array(offset, vl);\n } else if (vrType === 'Int16') {\n data = Array.from(reader.readInt16Array(offset, vl));\n } else if (vrType === 'Int32') {\n data = Array.from(reader.readInt32Array(offset, vl));\n } else if (vrType === 'Int64') {\n data = reader.readInt64Array(offset, vl);\n } else if (vrType === 'Float32') {\n data = Array.from(reader.readFloat32Array(offset, vl));\n } else if (vrType === 'Float64') {\n data = Array.from(reader.readFloat64Array(offset, vl));\n }\n return data;\n}\n\n/**\n * Get a DICOM element from its tag name (value set separatly).\n *\n * @param {string} tagName The string tag name.\n * @returns {DataElement} The DICOM element.\n */\nfunction getDataElement(tagName) {\n const tag = getTagFromDictionary(tagName);\n const element = new DataElement(tag.getVrFromDictionary());\n element.tag = tag;\n return element;\n}\n\n/**\n * Get the number of bytes per element for a given VR type.\n *\n * @param {string} vrType The VR type as defined in the dictionary.\n * @returns {number} The bytes per element.\n */\nfunction getBpeForVrType(vrType) {\n let bpe;\n if (vrType === 'Uint8') {\n bpe = Uint8Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Uint16') {\n bpe = Uint16Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Int16') {\n bpe = Int16Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Uint32') {\n bpe = Uint32Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Int32') {\n bpe = Int32Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Float32') {\n bpe = Float32Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Float64') {\n bpe = Float64Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Uint64') {\n bpe = BigUint64Array.BYTES_PER_ELEMENT;\n } else if (vrType === 'Int64') {\n bpe = BigInt64Array.BYTES_PER_ELEMENT;\n }\n return bpe;\n}\n\n/**\n * Get the DICOM elements from a 'simple' DICOM tags object.\n * The input object is a simplified version of the oficial DICOM json with\n * tag names instead of keys and direct values (no value property) for\n * simple tags. See synthetic test data (in tests/dicom) for examples.\n *\n * @param {Object} simpleTags The 'simple' DICOM\n * tags object.\n * @returns {Object} The DICOM elements.\n */\nexport function getElementsFromJSONTags(simpleTags) {\n const keys = Object.keys(simpleTags);\n const dataElements = {};\n for (let k = 0, len = keys.length; k < len; ++k) {\n // get the DICOM element definition from its name\n const tag = getTagFromDictionary(keys[k]);\n if (typeof tag === 'undefined') {\n continue;\n }\n const vr = tag.getVrFromDictionary();\n // tag value\n let value;\n let undefinedLength = false;\n const simpleTag = simpleTags[keys[k]];\n if (vr === 'SQ') {\n const items = [];\n if (typeof simpleTag.undefinedLength !== 'undefined') {\n undefinedLength = simpleTag.undefinedLength;\n }\n if (typeof simpleTag.value !== 'undefined' &&\n simpleTag.value !== null) {\n for (let i = 0; i < simpleTag.value.length; ++i) {\n items.push(getElementsFromJSONTags(simpleTag.value[i]));\n }\n } else {\n logger.trace('Undefined or null simpleTag SQ value.');\n }\n value = items;\n } else {\n if (Array.isArray(simpleTag)) {\n value = simpleTag;\n } else {\n value = [simpleTag];\n }\n }\n // create element\n const dataElement = new DataElement(vr);\n dataElement.tag = tag;\n dataElement.value = value;\n if (undefinedLength) {\n dataElement.undefinedLength = undefinedLength;\n }\n // store\n dataElements[tag.getKey()] = dataElement;\n }\n // return\n // @ts-expect-error\n return dataElements;\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * DICOM code tag keys.\n */\nconst TagKeys = {\n CodeValue: '00080100',\n CodingSchemeDesignator: '00080102',\n CodeMeaning: '00080104',\n LongCodeValue: '00080119',\n URNCodeValue: '00080120'\n};\n\n/**\n * DICOM code: item of a basic code sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_8.8.html}.\n * List: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part16/chapter_d.html}.\n */\nexport class DicomCode {\n /**\n * Code meaning.\n *\n * @type {string}\n */\n meaning;\n /**\n * Code value.\n *\n * @type {string|undefined}\n */\n value;\n /**\n * Long code value.\n *\n * @type {string|undefined}\n */\n longValue;\n /**\n * URN code value.\n *\n * @type {string|undefined}\n */\n urnValue;\n /**\n * Coding scheme designator.\n *\n * @type {string|undefined}\n */\n schemeDesignator;\n\n /**\n * @param {string} meaning The code meaning.\n */\n constructor(meaning) {\n this.meaning = meaning;\n }\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The code as string.\n */\n toString() {\n return '(' + this.value + ', ' +\n this.schemeDesignator + ', \\'' +\n this.meaning + '\\')';\n }\n}\n\n/**\n * Check if two code objects are equal.\n *\n * @param {DicomCode} code1 The first code.\n * @param {DicomCode} code2 The second code.\n * @returns {boolean} True if both codes are equal.\n */\nexport function isEqualCode(code1, code2) {\n return Object.keys(code1).length === Object.keys(code2).length &&\n Object.keys(code1).every(key =>\n Object.prototype.hasOwnProperty.call(code2, key) &&\n code1[key] === code2[key]\n );\n}\n\n/**\n * Get a code object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {DicomCode} A code object.\n */\nexport function getCode(dataElements) {\n // meaning -> CodeMeaning (type1)\n const code = new DicomCode(dataElements[TagKeys.CodeMeaning].value[0]);\n // value -> CodeValue (type1C)\n // longValue -> LongCodeValue (type1C)\n // urnValue -> URNCodeValue (type1C)\n if (typeof dataElements[TagKeys.CodeValue] !== 'undefined') {\n code.value = dataElements[TagKeys.CodeValue].value[0];\n } else if (typeof dataElements[TagKeys.LongCodeValue] !== 'undefined') {\n code.longValue = dataElements[TagKeys.LongCodeValue].value[0];\n } else if (typeof dataElements[TagKeys.URNCodeValue] !== 'undefined') {\n code.urnValue = dataElements[TagKeys.URNCodeValue].value[0];\n } else {\n throw new Error(\n 'Invalid code with no value, no long value and no urn value.');\n }\n // schemeDesignator -> CodingSchemeDesignator (type1C)\n if (typeof code.value !== 'undefined' ||\n typeof code.longValue !== 'undefined') {\n if (typeof dataElements[TagKeys.CodingSchemeDesignator] !== 'undefined') {\n code.schemeDesignator =\n dataElements[TagKeys.CodingSchemeDesignator].value[0];\n } else {\n throw new Error(\n 'No coding sheme designator when code value or long value is present');\n }\n }\n return code;\n}\n\n/**\n * Get a simple dicom element item from a code object.\n *\n * @param {DicomCode} code The code object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomCodeItem(code) {\n // dicom item (tags are in group/element order)\n const item = {};\n // value\n if (typeof code.value !== 'undefined') {\n item.CodeValue = code.value;\n } else if (typeof code.longValue !== 'undefined') {\n item.LongCodeValue = code.longValue;\n } else if (typeof code.urnValue !== 'undefined') {\n item.URNCodeValue = code.urnValue;\n }\n // CodingSchemeDesignator\n if (typeof code.schemeDesignator !== 'undefined') {\n item.CodingSchemeDesignator = code.schemeDesignator;\n }\n // CodeMeaning\n item.CodeMeaning = code.meaning;\n // return\n return item;\n}\n\n/**\n * DICOM codes.\n */\nconst DcmCodes = {\n 111030: 'Image Region',\n 112039: 'Tracking Identifier',\n 112040: 'Tracking Unique Identifier',\n 113076: 'Segmentation',\n 121055: 'Path',\n 121322: 'Source image for image processing operation',\n 121324: 'Source Image',\n 125007: 'Measurement Group',\n 125309: 'Short label'\n};\n\n/**\n * Get a DICOM code from a value (~id).\n *\n * @param {string} value The code value.\n * @returns {DicomCode} The DICOM code.\n */\nfunction getDicomCode(value) {\n const code = new DicomCode(DcmCodes[value]);\n code.schemeDesignator = 'DCM';\n code.value = value;\n return code;\n}\n\n/**\n * Get a measurement group DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getMeasurementGroupCode() {\n return getDicomCode('125007');\n}\n\n/**\n * Get an image region DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getImageRegionCode() {\n return getDicomCode('111030');\n}\n\n/**\n * Get a path DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getPathCode() {\n return getDicomCode('121055');\n}\n\n/**\n * Get a source image DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getSourceImageCode() {\n return getDicomCode('121324');\n}\n\n/**\n * Get a tracking identifier DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getTrackingIdentifierCode() {\n return getDicomCode('112039');\n}\n\n/**\n * Get a segmentation DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getSegmentationCode() {\n return getDicomCode('113076');\n}\n\n/**\n * Get a source image for processing DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getSourceImageForProcessingCode() {\n return getDicomCode('121322');\n}\n\n/**\n * Get a short label DICOM code.\n *\n * @returns {DicomCode} The code.\n */\nexport function getShortLabelCode() {\n return getDicomCode('125309');\n}\n","import {\n isEqualRgb,\n cielabToSrgb,\n uintLabToLab,\n labToUintLab,\n srgbToCielab\n} from '../utils/colour';\nimport {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {RGB} from '../utils/colour';\nimport {DataElement} from './dataElement';\nimport {DicomCode} from './dicomCode';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n SegmentNumber: '00620004',\n SegmentLabel: '00620005',\n SegmentAlgorithmType: '00620008',\n SegmentAlgorithmName: '00620009',\n RecommendedDisplayGrayscaleValue: '0062000C',\n RecommendedDisplayCIELabValue: '0062000D',\n SegmentedPropertyCategoryCodeSequence: '00620003',\n SegmentedPropertyTypeCodeSequence: '0062000F',\n TrackingID: '00620020',\n TrackingUID: '00620021'\n};\n\n/**\n * DICOM (mask) segment: item of a SegmentSequence (0062,0002).\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.8.20.4.html}.\n */\nexport class MaskSegment {\n /**\n * Segment number (0062,0004).\n *\n * @type {number}\n */\n number;\n /**\n * Segment label (0062,0005).\n *\n * @type {string}\n */\n label;\n /**\n * Segment algorithm type (0062,0008).\n *\n * @type {string}\n */\n algorithmType;\n /**\n * Segment algorithm name (0062,0009).\n *\n * @type {string|undefined}\n */\n algorithmName;\n /**\n * Segment display value as simple value.\n *\n * @type {number|undefined}\n */\n displayValue;\n /**\n * Segment display value as RGB colour ({r,g,b}).\n *\n * @type {RGB|undefined}\n */\n displayRGBValue;\n /**\n * Segment property code: specific property\n * the segment represents (0062,000F).\n *\n * @type {DicomCode|undefined}\n */\n propertyTypeCode;\n /**\n * Segment property category code: general category\n * of the property the segment represents (0062,0003).\n *\n * @type {DicomCode|undefined}\n */\n propertyCategoryCode;\n /**\n * Segment tracking UID (0062,0021).\n *\n * @type {string|undefined}\n */\n trackingUid;\n /**\n * Segment tracking id: text label for the UID (0062,0020).\n *\n * @type {string|undefined}\n */\n trackingId;\n\n /**\n * @param {number} number The segment number.\n * @param {string} label The segment label.\n * @param {string} algorithmType The segment number.\n */\n constructor(number, label, algorithmType) {\n this.number = number;\n this.label = label;\n this.algorithmType = algorithmType;\n }\n}\n\n/**\n * Get a segment object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {MaskSegment} A segment object.\n */\nexport function getSegment(dataElements) {\n // number -> SegmentNumber (type1)\n // label -> SegmentLabel (type1)\n // algorithmType -> SegmentAlgorithmType (type1)\n const segment = new MaskSegment(\n dataElements[TagKeys.SegmentNumber].value[0],\n dataElements[TagKeys.SegmentLabel]\n ? dataElements[TagKeys.SegmentLabel].value[0] : 'n/a',\n dataElements[TagKeys.SegmentAlgorithmType].value[0]\n );\n // algorithmName -> SegmentAlgorithmName (type1C)\n if (typeof dataElements[TagKeys.SegmentAlgorithmName] !== 'undefined') {\n segment.algorithmName = dataElements[TagKeys.SegmentAlgorithmName].value[0];\n }\n // // required if type is not MANUAL\n // if (segment.algorithmType !== 'MANUAL' &&\n // (typeof segment.algorithmName === 'undefined' ||\n // segment.algorithmName.length === 0)) {\n // throw new Error('Empty algorithm name for non MANUAL algorithm type.');\n // }\n // displayValue ->\n // - RecommendedDisplayGrayscaleValue\n // - RecommendedDisplayCIELabValue converted to RGB\n if (typeof dataElements[TagKeys.RecommendedDisplayGrayscaleValue] !==\n 'undefined') {\n segment.displayValue =\n dataElements[TagKeys.RecommendedDisplayGrayscaleValue].value[0];\n } else if (typeof dataElements[TagKeys.RecommendedDisplayCIELabValue] !==\n 'undefined') {\n const cielabElement =\n dataElements[TagKeys.RecommendedDisplayCIELabValue].value;\n const rgb = cielabToSrgb(uintLabToLab({\n l: cielabElement[0],\n a: cielabElement[1],\n b: cielabElement[2]\n }));\n segment.displayRGBValue = rgb;\n }\n // Segmented Property Category Code Sequence (type1, only one)\n if (typeof dataElements[TagKeys.SegmentedPropertyCategoryCodeSequence] !==\n 'undefined') {\n segment.propertyCategoryCode =\n getCode(\n dataElements[TagKeys.SegmentedPropertyCategoryCodeSequence].value[0]\n );\n } else {\n throw new Error('Missing Segmented Property Category Code Sequence.');\n }\n // Segmented Property Type Code Sequence (type1)\n if (typeof dataElements[TagKeys.SegmentedPropertyTypeCodeSequence] !==\n 'undefined') {\n segment.propertyTypeCode =\n getCode(dataElements[TagKeys.SegmentedPropertyTypeCodeSequence].value[0]);\n } else {\n throw new Error('Missing Segmented Property Type Code Sequence.');\n }\n // tracking Id and UID (type1C)\n if (typeof dataElements[TagKeys.TrackingID] !== 'undefined') {\n segment.trackingId = dataElements[TagKeys.TrackingID].value[0];\n segment.trackingUid = dataElements[TagKeys.TrackingUID].value[0];\n }\n\n return segment;\n}\n\n/**\n * Check if two segment objects are equal.\n *\n * @param {MaskSegment} seg1 The first segment.\n * @param {MaskSegment} seg2 The second segment.\n * @returns {boolean} True if both segment are equal.\n */\nexport function isEqualSegment(seg1, seg2) {\n // basics\n if (typeof seg1 === 'undefined' ||\n typeof seg2 === 'undefined' ||\n seg1 === null ||\n seg2 === null) {\n return false;\n }\n let isEqual = seg1.number === seg2.number &&\n seg1.label === seg2.label &&\n seg1.algorithmType === seg2.algorithmType;\n // display value\n if (typeof seg1.displayRGBValue !== 'undefined' &&\n typeof seg2.displayRGBValue !== 'undefined') {\n isEqual = isEqual &&\n isEqualRgb(seg1.displayRGBValue, seg2.displayRGBValue);\n } else if (typeof seg1.displayValue !== 'undefined' &&\n typeof seg2.displayValue !== 'undefined') {\n isEqual = isEqual &&\n seg1.displayValue === seg2.displayValue;\n } else {\n isEqual = false;\n }\n // algorithmName\n if (typeof seg1.algorithmName !== 'undefined') {\n if (typeof seg2.algorithmName === 'undefined') {\n isEqual = false;\n } else {\n isEqual = isEqual &&\n seg1.algorithmName === seg2.algorithmName;\n }\n }\n\n return isEqual;\n}\n\n/**\n * Check if two segment objects are similar: either the\n * number or the displayValue are equal.\n *\n * @param {MaskSegment} seg1 The first segment.\n * @param {MaskSegment} seg2 The second segment.\n * @returns {boolean} True if both segment are similar.\n */\nexport function isSimilarSegment(seg1, seg2) {\n // basics\n if (typeof seg1 === 'undefined' ||\n typeof seg2 === 'undefined' ||\n seg1 === null ||\n seg2 === null) {\n return false;\n }\n let isSimilar = seg1.number === seg2.number;\n // display value\n if (typeof seg1.displayRGBValue !== 'undefined' &&\n typeof seg2.displayRGBValue !== 'undefined') {\n isSimilar = isSimilar ||\n isEqualRgb(seg1.displayRGBValue, seg2.displayRGBValue);\n } else if (typeof seg1.displayValue !== 'undefined' &&\n typeof seg2.displayValue !== 'undefined') {\n isSimilar = isSimilar ||\n seg1.displayValue === seg2.displayValue;\n } else {\n isSimilar = false;\n }\n\n return isSimilar;\n}\n\n/**\n * Get a dicom simple tag from a segment object.\n *\n * @param {MaskSegment} segment The segment object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSegmentItem(segment) {\n let algoType = segment.algorithmType;\n if (algoType === undefined) {\n algoType = 'MANUAL';\n }\n // dicom item (tags are in group/element order)\n const segmentItem = {\n SegmentNumber: segment.number,\n SegmentLabel: segment.label,\n SegmentAlgorithmType: algoType\n };\n // SegmentAlgorithmName\n if (algoType !== 'MANUAL' && segment.algorithmName !== undefined) {\n segmentItem.SegmentAlgorithmName = segment.algorithmName;\n }\n // RecommendedDisplay value\n if (segment.displayRGBValue) {\n const cieLab = labToUintLab(srgbToCielab(segment.displayRGBValue));\n segmentItem.RecommendedDisplayCIELabValue = [\n Math.round(cieLab.l),\n Math.round(cieLab.a),\n Math.round(cieLab.b)\n ];\n } else {\n segmentItem.RecommendedDisplayGrayscaleValue = segment.displayValue;\n }\n // SegmentedPropertyCategoryCodeSequence\n if (segment.propertyCategoryCode) {\n segmentItem.SegmentedPropertyCategoryCodeSequence = {\n value: [getDicomCodeItem(segment.propertyCategoryCode)]\n };\n }\n // SegmentedPropertyTypeCodeSequence\n if (segment.propertyTypeCode) {\n segmentItem.SegmentedPropertyTypeCodeSequence = {\n value: [getDicomCodeItem(segment.propertyTypeCode)]\n };\n }\n // tracking\n if (segment.trackingId) {\n segmentItem.TrackingID = segment.trackingId;\n segmentItem.TrackingUID = segment.trackingUid;\n }\n // return\n return segmentItem;\n}\n","import {getSpacingFromMeasure} from './dicomElementsWrapper';\nimport {logger} from '../utils/logger';\nimport {arrayEquals} from '../utils/array';\nimport {\n getDicomCodeItem,\n getSegmentationCode,\n getSourceImageForProcessingCode\n} from './dicomCode';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\nimport {Spacing} from '../image/spacing';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n DerivationImageSequence: '00089124',\n SourceImageSequence: '00082112',\n ReferencedSOPClassUID: '00081150',\n ReferencedSOPInstanceUID: '00081155',\n FrameContentSequence: '00209111',\n DimensionIndexValue: '00209157',\n SegmentIdentificationSequence: '0062000A',\n ReferencedSegmentNumber: '0062000B',\n PlanePositionSequence: '00209113',\n ImagePosition: '00200032',\n PlaneOrientationSequence: '00209116',\n ImageOrientation: '00200037',\n PixelMeasuresSequence: '00289110'\n};\n\n/**\n * DICOM segment frame info: item of a\n * PerframeFunctionalGroupsSequence (5200,9230).\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.7.6.16.html}.\n */\nexport class DicomSegmentFrameInfo {\n /**\n * The dimension index.\n *\n * @type {number[]}\n */\n dimIndex;\n /**\n * The frame image position patient.\n *\n * @type {number[]}\n */\n imagePosPat;\n /**\n * List of derivation images.\n *\n * @type {Array}\n */\n derivationImages;\n /**\n * The reference segment number.\n *\n * @type {number}\n */\n refSegmentNumber;\n\n /**\n * The frame image orientation.\n *\n * @type {number[]|undefined}\n */\n imageOrientationPatient;\n /**\n * The frame spacing.\n *\n * @type {Spacing|undefined}\n */\n spacing;\n\n /**\n * @param {number[]} dimIndex The dimension index.\n * @param {number[]} imagePosPat The frame image position patient.\n * @param {Array} derivationImages List of derivation images.\n * @param {number} refSegmentNumber The reference segment number.\n */\n constructor(dimIndex, imagePosPat, derivationImages, refSegmentNumber) {\n this.dimIndex = dimIndex;\n this.imagePosPat = imagePosPat;\n this.derivationImages = derivationImages;\n this.refSegmentNumber = refSegmentNumber;\n }\n}\n\n/**\n * Get a frame information object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {DicomSegmentFrameInfo} A frame information object.\n */\nexport function getSegmentFrameInfo(dataElements) {\n // Derivation Image Sequence\n const derivationImages = [];\n if (typeof dataElements[TagKeys.DerivationImageSequence] !== 'undefined') {\n const derivationImageSq =\n dataElements[TagKeys.DerivationImageSequence].value;\n // Source Image Sequence\n for (let i = 0; i < derivationImageSq.length; ++i) {\n const sourceImages = [];\n if (typeof derivationImageSq[i][TagKeys.SourceImageSequence] !==\n 'undefined') {\n const sourceImageSq =\n derivationImageSq[i][TagKeys.SourceImageSequence].value;\n for (let j = 0; j < sourceImageSq.length; ++j) {\n const sourceImage = {};\n // Referenced SOP Class UID\n if (typeof sourceImageSq[j][TagKeys.ReferencedSOPClassUID] !==\n 'undefined') {\n sourceImage.referencedSOPClassUID =\n sourceImageSq[j][TagKeys.ReferencedSOPClassUID].value[0];\n }\n // Referenced SOP Instance UID\n if (typeof sourceImageSq[j][TagKeys.ReferencedSOPInstanceUID] !==\n 'undefined') {\n sourceImage.referencedSOPInstanceUID =\n sourceImageSq[j][TagKeys.ReferencedSOPInstanceUID].value[0];\n }\n sourceImages.push(sourceImage);\n }\n }\n derivationImages.push({\n sourceImages: sourceImages\n });\n }\n }\n // Frame Content Sequence (required, only one)\n const frameContentSq = dataElements[TagKeys.FrameContentSequence].value;\n // Dimension Index Value\n const dimIndex = frameContentSq[0][TagKeys.DimensionIndexValue].value;\n // Segment Identification Sequence (required, only one)\n const segmentIdSq = dataElements[TagKeys.SegmentIdentificationSequence].value;\n // Referenced Segment Number\n const refSegmentNumber =\n parseInt(segmentIdSq[0][TagKeys.ReferencedSegmentNumber].value[0], 0);\n // Plane Position Sequence (required, only one)\n const planePosSq = dataElements[TagKeys.PlanePositionSequence].value;\n // Image Position (Patient) (conditionally required)\n const imagePosPat = planePosSq[0][TagKeys.ImagePosition].value;\n for (let p = 0; p < imagePosPat.length; ++p) {\n imagePosPat[p] = parseFloat(imagePosPat[p]);\n }\n const frameInfo = new DicomSegmentFrameInfo(\n dimIndex,\n imagePosPat,\n derivationImages,\n refSegmentNumber\n );\n // Plane Orientation Sequence\n if (typeof dataElements[TagKeys.PlaneOrientationSequence] !== 'undefined') {\n const framePlaneOrientationSeq =\n dataElements[TagKeys.PlaneOrientationSequence];\n if (framePlaneOrientationSeq.value.length !== 0) {\n // should only be one Image Orientation (Patient)\n const frameImageOrientation =\n framePlaneOrientationSeq.value[0][TagKeys.ImageOrientation].value;\n if (typeof frameImageOrientation !== 'undefined') {\n frameInfo.imageOrientationPatient = frameImageOrientation;\n }\n }\n }\n // Pixel Measures Sequence\n if (typeof dataElements[TagKeys.PixelMeasuresSequence] !== 'undefined') {\n const framePixelMeasuresSeq = dataElements[TagKeys.PixelMeasuresSequence];\n if (framePixelMeasuresSeq.value.length !== 0) {\n // should only be one\n const frameSpacing =\n getSpacingFromMeasure(framePixelMeasuresSeq.value[0]);\n if (typeof frameSpacing !== 'undefined') {\n frameInfo.spacing = frameSpacing;\n }\n } else {\n logger.warn(\n 'No shared functional group pixel measure sequence items.');\n }\n }\n\n return frameInfo;\n}\n\n/**\n * Check if two frame info objects are equal.\n *\n * @param {DicomSegmentFrameInfo} dsfi1 The first frame info.\n * @param {DicomSegmentFrameInfo} dsfi2 The second frame info.\n * @returns {boolean} True if both frame info are equal.\n */\nexport function isEqualSegmentFrameInfo(dsfi1, dsfi2) {\n // basics\n if (typeof dsfi1 === 'undefined' ||\n typeof dsfi2 === 'undefined' ||\n dsfi1 === null ||\n dsfi2 === null) {\n return false;\n }\n let isEqual =\n arrayEquals(dsfi1.dimIndex, dsfi2.dimIndex) &&\n arrayEquals(dsfi1.imagePosPat, dsfi2.imagePosPat) &&\n dsfi1.refSegmentNumber === dsfi2.refSegmentNumber;\n\n isEqual = isEqual &&\n dsfi1.derivationImages.length === dsfi2.derivationImages.length;\n for (let i = 0; i < dsfi1.derivationImages.length; ++i) {\n const derivationImage1 = dsfi1.derivationImages[i];\n const derivationImage2 = dsfi2.derivationImages[i];\n isEqual = isEqual &&\n derivationImage1.sourceImages.length ===\n derivationImage2.sourceImages.length;\n for (let j = 0; j < derivationImage1.length; ++j) {\n const sourceImage1 = derivationImage1.sourceImages[j];\n const sourceImage2 = derivationImage2.sourceImages[j];\n isEqual = isEqual &&\n sourceImage1.referencedSOPClassUID ===\n sourceImage2.referencedSOPClassUID &&\n sourceImage1.referencedSOPInstanceUID ===\n sourceImage2.referencedSOPInstanceUID;\n }\n }\n\n return isEqual;\n}\n\n/**\n * Get a dicom item from a frame information object.\n *\n * @param {object} frameInfo The frame information object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSegmentFrameInfoItem(frameInfo) {\n const item = {\n FrameContentSequence: {\n value: [\n {\n DimensionIndexValues: frameInfo.dimIndex\n }\n ]\n },\n PlanePositionSequence: {\n value: [\n {\n ImagePositionPatient: frameInfo.imagePosPat\n }\n ]\n },\n SegmentIdentificationSequence: {\n value: [\n {\n ReferencedSegmentNumber: frameInfo.refSegmentNumber\n }\n ]\n }\n };\n // optional DerivationImageSequence\n if (frameInfo.derivationImages !== undefined) {\n const sourceImgPurposeOfReferenceCode =\n getDicomCodeItem(getSourceImageForProcessingCode());\n const segDerivationCode =\n getDicomCodeItem(getSegmentationCode());\n\n const derivationImageItems = [];\n for (const derivationImage of frameInfo.derivationImages) {\n const sourceImages = [];\n for (const sourceImage of derivationImage.sourceImages) {\n sourceImages.push({\n PurposeOfReferenceCodeSequence: {\n value: [sourceImgPurposeOfReferenceCode]\n },\n ReferencedSOPClassUID: sourceImage.referencedSOPClassUID,\n ReferencedSOPInstanceUID: sourceImage.referencedSOPInstanceUID\n });\n }\n\n derivationImageItems.push({\n DerivationCodeSequence: {\n value: [segDerivationCode]\n },\n SourceImageSequence: {\n value: sourceImages\n }\n });\n }\n\n item.DerivationImageSequence = {\n value: derivationImageItems\n };\n }\n\n return item;\n}\n","import {\n dateToDateObj,\n getDicomDate,\n dateToTimeObj,\n getDicomTime,\n} from '../dicom/dicomDate';\nimport {\n getImage2DSize,\n getSpacingFromMeasure,\n getDimensionOrganization,\n getDicomMeasureItem,\n getDicomPlaneOrientationItem\n} from '../dicom/dicomElementsWrapper';\nimport {Tag} from '../dicom/dicomTag';\nimport {getElementsFromJSONTags} from '../dicom/dicomWriter';\nimport {\n getSegment,\n getDicomSegmentItem,\n} from '../dicom/dicomSegment';\nimport {\n getSegmentFrameInfo,\n getDicomSegmentFrameInfoItem\n} from '../dicom/dicomSegmentFrameInfo';\nimport {transferSyntaxKeywords} from '../dicom/dictionary';\nimport {Image} from '../image/image';\nimport {Geometry} from '../image/geometry';\nimport {Point, Point3D} from '../math/point';\nimport {Vector3D} from '../math/vector';\nimport {Index} from '../math/index';\nimport {Matrix33, REAL_WORLD_EPSILON} from '../math/matrix';\nimport {logger} from '../utils/logger';\nimport {arraySortEquals} from '../utils/array';\nimport {Size} from './size';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * @typedef {Object} DataElements\n */\n\n/**\n * Check two position patients for equality.\n *\n * @param {*} pos1 The first position patient.\n * @param {*} pos2 The second position patient.\n * @returns {boolean} True is equal.\n */\nfunction equalPosPat(pos1, pos2) {\n return JSON.stringify(pos1) === JSON.stringify(pos2);\n}\n\n/**\n * @callback compareFn\n * @param {object} a The first object.\n * @param {object} b The first object.\n * @returns {number} >0 to sort a after b, <0 to sort a before b,\n * 0 to not change order.\n */\n\n/**\n * Get a position patient compare function accroding to an\n * input orientation.\n *\n * @param {Matrix33} orientation The orientation matrix.\n * @returns {compareFn} The position compare function.\n */\nfunction getComparePosPat(orientation) {\n const invOrientation = orientation.getInverse();\n return function (pos1, pos2) {\n const p1 = invOrientation.multiplyArray3D(pos1);\n const p2 = invOrientation.multiplyArray3D(pos2);\n return p1[2] - p2[2];\n };\n}\n\n/**\n * Merge two tag lists.\n *\n * @param {object} tags1 Base list, will be modified.\n * @param {object} tags2 List to merge.\n */\nfunction mergeTags(tags1, tags2) {\n const keys2 = Object.keys(tags2);\n for (const tagName2 of keys2) {\n if (tags1[tagName2] !== undefined) {\n logger.trace('Overwritting tag: ' + tagName2);\n }\n tags1[tagName2] = tags2[tagName2];\n }\n}\n\n/**\n * Check that a DICOM tag definition is present in a parsed element.\n *\n * @param {DataElements} dataElements The root dicom element.\n * @param {object} tagDefinition The tag definition as {name, tag, type, enum}.\n */\nfunction checkTag(dataElements, tagDefinition) {\n const element = dataElements[tagDefinition.tag];\n // check null and undefined\n if (tagDefinition.type === 1 || tagDefinition.type === 2) {\n if (typeof element === 'undefined') {\n throw new Error('Missing or empty ' + tagDefinition.name);\n }\n } else {\n if (typeof element === 'undefined') {\n // non mandatory value, exit\n return;\n }\n }\n let includes = false;\n let tagValue;\n if (element.value.length === 1) {\n tagValue = element.value[0];\n } else {\n tagValue = element.value;\n }\n if (Array.isArray(tagValue)) {\n for (let i = 0; i < tagDefinition.enum.length; ++i) {\n if (!Array.isArray(tagDefinition.enum[i])) {\n throw new Error('Cannot compare array and non array tag value.');\n }\n if (arraySortEquals(tagDefinition.enum[i], tagValue)) {\n includes = true;\n break;\n }\n }\n } else {\n includes = tagDefinition.enum.includes(tagValue);\n }\n if (!includes) {\n throw new Error(\n 'Unsupported ' + tagDefinition.name + ' value: ' + tagValue);\n }\n}\n\n/**\n * Create ROI slice buffers.\n *\n * @param {Image} image The mask image.\n * @param {MaskSegment[]} segments The mask segments.\n * @param {number} sliceOffset The slice offset.\n * @returns {object} The ROI slice image buffers.\n */\nfunction createRoiSliceBuffers(\n image,\n segments,\n sliceOffset\n) {\n // access functions\n const numberOfComponents = image.getNumberOfComponents();\n const isRGB = numberOfComponents === 3;\n let getPixelValue;\n let equalValues;\n if (isRGB) {\n getPixelValue = function (inputOffset) {\n return {\n r: image.getValueAtOffset(inputOffset),\n g: image.getValueAtOffset(inputOffset + 1),\n b: image.getValueAtOffset(inputOffset + 2)\n };\n };\n equalValues = function (value, segment) {\n return (\n segment.displayRGBValue !== undefined &&\n value.r === segment.displayRGBValue.r &&\n value.g === segment.displayRGBValue.g &&\n value.b === segment.displayRGBValue.b\n );\n };\n } else {\n getPixelValue = function (inputOffset) {\n return image.getValueAtOffset(inputOffset);\n };\n equalValues = function (value, segment) {\n return value === segment.displayValue;\n };\n }\n\n // create binary mask buffers\n const geometry = image.getGeometry();\n const size = geometry.getSize();\n const sliceSize = size.getDimSize(2);\n const buffers = {};\n for (let o = 0; o < sliceSize; ++o) {\n const inputOffset = (sliceOffset + o) * numberOfComponents;\n const pixelValue = getPixelValue(inputOffset);\n for (const segment of segments) {\n const number2 = segment.number - 1;\n if (equalValues(pixelValue, segment)) {\n if (buffers[number2] === undefined) {\n buffers[number2] = new Uint8Array(sliceSize);\n }\n buffers[number2][o] = 1;\n }\n }\n }\n return buffers;\n}\n\n/**\n * Create ROI buffers.\n *\n * @param {Image} image The mask image.\n * @param {MaskSegment[]} segments The mask segments.\n * @returns {object} The ROI buffers.\n */\nfunction createRoiBuffers(image, segments) {\n const geometry = image.getGeometry();\n const size = geometry.getSize();\n\n // image buffer to multi frame\n const sliceSize = size.getDimSize(2);\n const roiBuffers = {};\n for (let k = 0; k < size.get(2); ++k) {\n const sliceOffset = k * sliceSize;\n // create slice buffers\n const buffers = createRoiSliceBuffers(image, segments, sliceOffset);\n // store slice buffers\n const keys0 = Object.keys(buffers);\n for (const key0 of keys0) {\n if (roiBuffers[key0] === undefined) {\n roiBuffers[key0] = {};\n }\n // ordering by slice index (follows posPat)\n roiBuffers[key0][k] = buffers[key0];\n }\n }\n return roiBuffers;\n}\n\n/**\n * List of DICOM Seg required tags.\n */\nconst RequiredDicomSegTags = [\n {\n name: 'TransferSyntaxUID',\n tag: '00020010',\n type: '1',\n enum: [\n transferSyntaxKeywords.ImplicitVRLittleEndian,\n transferSyntaxKeywords.ExplicitVRLittleEndian,\n transferSyntaxKeywords.ExplicitVRBigEndian\n ]\n },\n {\n name: 'MediaStorageSOPClassUID',\n tag: '00020002',\n type: '1',\n enum: ['1.2.840.10008.5.1.4.1.1.66.4']\n },\n {\n name: 'SOPClassUID',\n tag: '00020002',\n type: '1',\n enum: ['1.2.840.10008.5.1.4.1.1.66.4']\n },\n {\n name: 'Modality',\n tag: '00080060',\n type: '1',\n enum: ['SEG']\n },\n {\n name: 'SegmentationType',\n tag: '00620001',\n type: '1',\n enum: ['BINARY']\n },\n {\n name: 'DimensionOrganizationType',\n tag: '00209311',\n type: '3',\n enum: ['3D']\n },\n {\n name: 'ImageType',\n tag: '00080008',\n type: '1',\n enum: [['DERIVED', 'PRIMARY']]\n },\n {\n name: 'SamplesPerPixel',\n tag: '00280002',\n type: '1',\n enum: [1]\n },\n {\n name: 'PhotometricInterpretation',\n tag: '00280004',\n type: '1',\n enum: ['MONOCHROME2']\n },\n {\n name: 'PixelRepresentation',\n tag: '00280103',\n type: '1',\n enum: [0]\n },\n {\n name: 'BitsAllocated',\n tag: '00280100',\n type: '1',\n enum: [1]\n },\n {\n name: 'BitsStored',\n tag: '00280101',\n type: '1',\n enum: [1]\n },\n {\n name: 'HighBit',\n tag: '00280102',\n type: '1',\n enum: [0]\n },\n];\n\n/**\n * Get the default DICOM seg tags as an object.\n *\n * @returns {object} The default tags.\n */\nexport function getDefaultDicomSegJson() {\n const tags = {};\n for (let i = 0; i < RequiredDicomSegTags.length; ++i) {\n const reqTag = RequiredDicomSegTags[i];\n tags[reqTag.name] = reqTag.enum[0];\n }\n return tags;\n}\n\n/**\n * Mask {@link Image} factory.\n */\nexport class MaskFactory {\n\n /**\n * Possible warning created by checkElements.\n *\n * @type {string|undefined}\n */\n #warning;\n\n /**\n * Get a warning string if elements are not as expected.\n * Created by checkElements.\n *\n * @returns {string|undefined} The warning.\n */\n getWarning() {\n return this.#warning;\n }\n\n /**\n * Check dicom elements. Throws an error if not suitable.\n *\n * @param {Object} _dicomElements The DICOM tags.\n * @returns {string|undefined} A possible warning.\n */\n checkElements(_dicomElements) {\n // does nothing\n return;\n }\n\n /**\n * Get an {@link Image} object from the read DICOM file.\n *\n * @param {Object} dataElements The DICOM tags.\n * @param {Uint8Array | Int8Array |\n * Uint16Array | Int16Array |\n * Uint32Array | Int32Array} pixelBuffer The pixel buffer.\n * @returns {Image} A new Image.\n */\n create(dataElements, pixelBuffer) {\n // check required and supported tags\n for (let d = 0; d < RequiredDicomSegTags.length; ++d) {\n checkTag(dataElements, RequiredDicomSegTags[d]);\n }\n\n // image size\n const size2D = getImage2DSize(dataElements);\n const size = new Size([size2D[0], size2D[1], 1]);\n\n const sliceSize = size.getTotalSize();\n\n // frames\n let frames = 1;\n const framesElem = dataElements['00280008'];\n if (typeof framesElem !== 'undefined') {\n frames = parseInt(framesElem.value[0], 10);\n }\n\n if (frames !== pixelBuffer.length / sliceSize) {\n throw new Error(\n 'Buffer and numberOfFrames meta are not equal.' +\n frames + ' ' + pixelBuffer.length / sliceSize);\n }\n\n // Dimension Organization and Index\n const dimension = getDimensionOrganization(dataElements);\n\n // Segment Sequence\n const segSequence = dataElements['00620002'];\n if (typeof segSequence === 'undefined') {\n throw new Error('Missing or empty segmentation sequence');\n }\n const segments = [];\n let storeAsRGB = false;\n for (let i = 0; i < segSequence.value.length; ++i) {\n const segment = getSegment(segSequence.value[i]);\n if (typeof segment.displayRGBValue !== 'undefined') {\n // create rgb image\n storeAsRGB = true;\n }\n // store\n segments.push(segment);\n }\n\n\n // Shared Functional Groups Sequence\n let spacing;\n let imageOrientationPatient;\n const sharedFunctionalGroupsSeq = dataElements['52009229'];\n if (typeof sharedFunctionalGroupsSeq !== 'undefined') {\n // should be only one\n const funcGroup0 = sharedFunctionalGroupsSeq.value[0];\n // Plane Orientation Sequence\n if (typeof funcGroup0['00209116'] !== 'undefined') {\n const planeOrientationSeq = funcGroup0['00209116'];\n if (planeOrientationSeq.value.length !== 0) {\n // should be only one\n imageOrientationPatient =\n planeOrientationSeq.value[0]['00200037'].value;\n } else {\n logger.warn(\n 'No shared functional group plane orientation sequence items.');\n }\n }\n // Pixel Measures Sequence\n if (typeof funcGroup0['00289110'] !== 'undefined') {\n const pixelMeasuresSeq = funcGroup0['00289110'];\n if (pixelMeasuresSeq.value.length !== 0) {\n // should be only one\n spacing = getSpacingFromMeasure(pixelMeasuresSeq.value[0]);\n } else {\n logger.warn(\n 'No shared functional group pixel measure sequence items.');\n }\n }\n }\n\n const includesPosPat = function (arr, val) {\n return arr.some(function (arrVal) {\n return equalPosPat(val, arrVal);\n });\n };\n\n const findIndexPosPat = function (arr, val) {\n return arr.findIndex(function (arrVal) {\n return equalPosPat(val, arrVal);\n });\n };\n\n // Per-frame Functional Groups Sequence\n const perFrameFuncGroupSequence = dataElements['52009230'];\n if (typeof perFrameFuncGroupSequence === 'undefined') {\n throw new Error('Missing or empty per frame functional sequence');\n }\n if (frames !== perFrameFuncGroupSequence.value.length) {\n throw new Error(\n 'perFrameFuncGroupSequence meta and numberOfFrames are not equal.');\n }\n // create frame info object from per frame func\n const frameInfos = [];\n for (let j = 0; j < perFrameFuncGroupSequence.value.length; ++j) {\n frameInfos.push(\n getSegmentFrameInfo(perFrameFuncGroupSequence.value[j]));\n }\n\n // check frame infos\n const framePosPats = [];\n for (let ii = 0; ii < frameInfos.length; ++ii) {\n if (!includesPosPat(framePosPats, frameInfos[ii].imagePosPat)) {\n framePosPats.push(frameInfos[ii].imagePosPat);\n }\n // store orientation if needed, avoid multi\n if (typeof frameInfos[ii].imageOrientationPatient !== 'undefined') {\n if (typeof imageOrientationPatient === 'undefined') {\n imageOrientationPatient = frameInfos[ii].imageOrientationPatient;\n } else {\n if (!arraySortEquals(\n imageOrientationPatient, frameInfos[ii].imageOrientationPatient)) {\n throw new Error('Unsupported multi orientation dicom seg.');\n }\n }\n }\n // store spacing if needed, avoid multi\n if (typeof frameInfos[ii].spacing !== 'undefined') {\n if (typeof spacing === 'undefined') {\n spacing = frameInfos[ii].spacing;\n } else {\n if (!spacing.equals(frameInfos[ii].spacing)) {\n throw new Error('Unsupported multi resolution dicom seg.');\n }\n }\n }\n }\n\n // check spacing and orientation\n if (typeof spacing === 'undefined') {\n throw new Error('No spacing found for DICOM SEG');\n }\n if (spacing.length() !== 3) {\n throw new Error('Incomplete spacing found for DICOM SEG');\n }\n if (typeof imageOrientationPatient === 'undefined') {\n throw new Error('No imageOrientationPatient found for DICOM SEG');\n }\n if (imageOrientationPatient.length !== 6) {\n throw new Error('Incomplete imageOrientationPatient found for DICOM SEG');\n }\n\n // orientation\n const rowCosines = new Vector3D(\n parseFloat(imageOrientationPatient[0]),\n parseFloat(imageOrientationPatient[1]),\n parseFloat(imageOrientationPatient[2]));\n const colCosines = new Vector3D(\n parseFloat(imageOrientationPatient[3]),\n parseFloat(imageOrientationPatient[4]),\n parseFloat(imageOrientationPatient[5]));\n const normal = rowCosines.crossProduct(colCosines);\n /* eslint-disable @stylistic/js/array-element-newline */\n const orientationMatrix = new Matrix33([\n rowCosines.getX(), colCosines.getX(), normal.getX(),\n rowCosines.getY(), colCosines.getY(), normal.getY(),\n rowCosines.getZ(), colCosines.getZ(), normal.getZ()\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n\n // sort positions patient\n framePosPats.sort(getComparePosPat(orientationMatrix));\n\n const point3DFromArray = function (arr) {\n return new Point3D(arr[0], arr[1], arr[2]);\n };\n\n // frame origins\n const frameOrigins = [];\n for (let n = 0; n < framePosPats.length; ++n) {\n frameOrigins.push(point3DFromArray(framePosPats[n]));\n }\n\n // tmp geometry with correct spacing but only one slice\n const tmpGeometry = new Geometry(\n frameOrigins[0], size, spacing, orientationMatrix);\n\n // origin distance test\n // TODO: maybe use sliceSpacing / 10\n const isAboveEpsilon = function (value) {\n let res = value > REAL_WORLD_EPSILON;\n if (res) {\n // try larger epsilon\n res = value > REAL_WORLD_EPSILON * 10;\n if (!res) {\n // warn if epsilon < value < epsilon * 10\n logger.warn(\n 'Using larger real world epsilon in SEG pos pat adding'\n );\n } else {\n res = value > REAL_WORLD_EPSILON * 100;\n if (!res) {\n // warn if epsilon < value < epsilon * 100\n logger.warn(\n 'Using larger+ real world epsilon in SEG pos pat adding'\n );\n }\n }\n }\n return res;\n };\n\n // add possibly missing posPats\n const posPats = [];\n posPats.push(framePosPats[0]);\n let sliceIndex = 0;\n for (let g = 1; g < framePosPats.length; ++g) {\n ++sliceIndex;\n let index = new Index([0, 0, sliceIndex]);\n let point = tmpGeometry.indexToWorld(index).get3D();\n const frameOrigin = frameOrigins[g];\n // check if more pos pats are needed\n let dist = frameOrigin.getDistance(point);\n const distPrevious = dist;\n // TODO: good threshold?\n while (isAboveEpsilon(dist)) {\n logger.debug('Adding intermediate pos pats for DICOM seg at ' +\n point.toString());\n posPats.push([point.getX(), point.getY(), point.getZ()]);\n ++sliceIndex;\n index = new Index([0, 0, sliceIndex]);\n point = tmpGeometry.indexToWorld(index).get3D();\n dist = frameOrigin.getDistance(point);\n if (dist > distPrevious) {\n throw new Error(\n 'Test distance is increasing when adding intermediate pos pats');\n }\n }\n // add frame pos pat\n posPats.push(framePosPats[g]);\n }\n\n // as many slices as posPats\n const numberOfSlices = posPats.length;\n\n // final geometry\n const geometry = new Geometry(\n frameOrigins[0], size, spacing, orientationMatrix);\n const uids = ['0'];\n for (let m = 1; m < numberOfSlices; ++m) {\n geometry.appendOrigin(point3DFromArray(posPats[m]), m);\n uids.push(m.toString());\n }\n\n const getFindSegmentFunc = function (number) {\n return function (item) {\n return item.number === number;\n };\n };\n\n // create output buffer\n const mul = storeAsRGB ? 3 : 1;\n const buffer =\n // @ts-ignore\n new pixelBuffer.constructor(mul * sliceSize * numberOfSlices);\n buffer.fill(0);\n // merge frame buffers\n let sliceOffset = null;\n let frameOffset = null;\n for (let f = 0; f < frameInfos.length; ++f) {\n // get the slice index from the position in the posPat array\n sliceIndex = findIndexPosPat(posPats, frameInfos[f].imagePosPat);\n frameOffset = sliceSize * f;\n sliceOffset = sliceSize * sliceIndex;\n // get the frame display value\n const frameSegment = segments.find(\n getFindSegmentFunc(frameInfos[f].refSegmentNumber)\n );\n for (let l = 0; l < sliceSize; ++l) {\n if (pixelBuffer[frameOffset + l] !== 0) {\n const offset = mul * (sliceOffset + l);\n if (storeAsRGB) {\n buffer[offset] = frameSegment.displayRGBValue.r;\n buffer[offset + 1] = frameSegment.displayRGBValue.g;\n buffer[offset + 2] = frameSegment.displayRGBValue.b;\n } else {\n buffer[offset] = frameSegment.displayValue;\n }\n }\n }\n }\n\n // create image\n const image = new Image(geometry, buffer, uids);\n if (storeAsRGB) {\n image.setPhotometricInterpretation('RGB');\n }\n // meta information\n const meta = getDefaultDicomSegJson();\n const safeGet = function (key) {\n let res;\n const element = dataElements[key];\n if (typeof element !== 'undefined') {\n res = element.value[0];\n }\n return res;\n };\n // Study\n meta.StudyDate = safeGet('00080020');\n meta.StudyTime = safeGet('00080030');\n meta.StudyInstanceUID = safeGet('0020000D');\n meta.StudyID = safeGet('00200010');\n // Series\n meta.SeriesDate = safeGet('00080021');\n meta.SeriesTime = safeGet('00080031');\n meta.SeriesInstanceUID = safeGet('0020000E');\n meta.SeriesNumber = safeGet('00200011');\n // ReferringPhysicianName\n meta.ReferringPhysicianName = safeGet('00080090');\n // patient info\n meta.PatientName = safeGet('00100010');\n meta.PatientID = safeGet('00100020');\n meta.PatientBirthDate = safeGet('00100030');\n meta.PatientSex = safeGet('00100040');\n // Enhanced General Equipment Module\n meta.Manufacturer = safeGet('00080070');\n meta.ManufacturerModelName = safeGet('00081090');\n meta.DeviceSerialNumber = safeGet('00181000');\n meta.SoftwareVersions = safeGet('00181020');\n // dicom seg dimension\n meta.DimensionOrganizationSequence = dimension.organizations;\n meta.DimensionIndexSequence = dimension.indices;\n // custom\n meta.custom = {\n segments: segments,\n frameInfos: frameInfos,\n SOPInstanceUID: dataElements['00080018'].value[0]\n };\n\n // number of files: in this case equal to number slices,\n // used to calculate buffer size\n meta.numberOfFiles = numberOfSlices;\n // FrameOfReferenceUID (optional)\n const frameOfReferenceUID = dataElements['00200052'];\n if (frameOfReferenceUID) {\n meta.FrameOfReferenceUID = frameOfReferenceUID.value[0];\n }\n // LossyImageCompression (optional)\n const lossyImageCompression = dataElements['00282110'];\n if (lossyImageCompression) {\n meta.LossyImageCompression = lossyImageCompression.value[0];\n }\n\n image.setMeta(meta);\n\n return image;\n }\n\n /**\n * Convert a mask image into a DICOM segmentation object.\n *\n * @param {Image} image The mask image.\n * @param {MaskSegment[]} segments The mask segments.\n * @param {Image} sourceImage The source image.\n * @param {Object} [extraTags] Optional list of extra tags.\n * @returns {Object} A list of dicom elements.\n */\n toDicom(\n image,\n segments,\n sourceImage,\n extraTags\n ) {\n // original image tags\n const tags = image.getMeta();\n\n // use image segments if not provided as input\n if (segments === undefined) {\n segments = tags.segments;\n }\n\n const geometry = image.getGeometry();\n const size = geometry.getSize();\n\n // (not in meta)\n tags.Rows = size.get(1);\n tags.Columns = size.get(0);\n // update content tags\n const now = new Date();\n tags.ContentDate = getDicomDate(dateToDateObj(now));\n tags.ContentTime = getDicomTime(dateToTimeObj(now));\n\n // keep source image StudyInstanceUID\n if (sourceImage !== undefined) {\n tags.StudyInstanceUID = (sourceImage.getMeta()).StudyInstanceUID;\n }\n\n // segments\n const segmentItems = [];\n for (const segment of segments) {\n segmentItems.push(getDicomSegmentItem(segment));\n }\n tags.SegmentSequence = {\n value: segmentItems\n };\n\n // Shared Functional Groups Sequence\n tags.SharedFunctionalGroupsSequence = {\n value: [\n {\n PlaneOrientationSequence: {\n value: [getDicomPlaneOrientationItem(geometry.getOrientation())]\n },\n PixelMeasuresSequence: {\n value: [getDicomMeasureItem(geometry.getSpacing())]\n }\n }\n ]\n };\n\n // image buffer to multi frame\n const roiBuffers = createRoiBuffers(image, segments);\n\n const frameInfos = [];\n\n // flatten buffer array\n const finalBuffers = [];\n const referencedSOPs = [];\n for (const segment of segments) {\n const number40 = segment.number;\n const number4 = number40 - 1;\n // check if buffer has values\n if (roiBuffers[number4] === undefined) {\n continue;\n }\n const keys1 = Object.keys(roiBuffers[number4]);\n // revert slice order\n for (let k1 = keys1.length - 1; k1 >= 0; --k1) {\n const key1 = Number.parseInt(keys1[k1], 10);\n finalBuffers.push(roiBuffers[number4][key1]);\n // frame info\n const posPat = image.getGeometry().getOrigins()[key1];\n const posPatArray = [posPat.getX(), posPat.getY(), posPat.getZ()];\n const frameInfo = {\n dimIndex: [number40, keys1.length - k1],\n imagePosPat: posPatArray,\n refSegmentNumber: number40\n };\n // derivation image info\n if (sourceImage !== undefined) {\n const sourceGeometry = sourceImage.getGeometry();\n const sourceIndex = sourceGeometry.worldToIndex(\n new Point([posPat.getX(), posPat.getY(), posPat.getZ()])\n );\n frameInfo.derivationImages = [\n {\n sourceImages: [\n {\n referencedSOPInstanceUID:\n sourceImage.getImageUid(sourceIndex),\n referencedSOPClassUID:\n (sourceImage.getMeta()).SOPClassUID\n }\n ]\n }\n ];\n // store as tag\n referencedSOPs.push({\n ReferencedSOPInstanceUID:\n sourceImage.getImageUid(sourceIndex),\n ReferencedSOPClassUID:\n (sourceImage.getMeta()).SOPClassUID\n });\n }\n frameInfos.push(frameInfo);\n }\n }\n\n tags.NumberOfFrames = finalBuffers.length.toString();\n\n // frame infos\n const frameInfosTag = [];\n for (const frameInfo of frameInfos) {\n frameInfosTag.push(getDicomSegmentFrameInfoItem(frameInfo));\n }\n tags.PerFrameFunctionalGroupsSequence = {\n value: frameInfosTag\n };\n\n // also store referenced SOPs in ReferencedSeriesSequence\n if (sourceImage !== undefined) {\n const refSeriesTag = [];\n refSeriesTag.push({\n ReferencedInstanceSequence: {\n value: referencedSOPs\n },\n SeriesInstanceUID: (sourceImage.getMeta()).SeriesInstanceUID\n });\n tags.ReferencedSeriesSequence = {\n value: refSeriesTag\n };\n }\n\n // merge extra tags if provided\n if (extraTags !== undefined) {\n mergeTags(tags, extraTags);\n }\n\n // convert JSON to DICOM element object\n const dicomElements = getElementsFromJSONTags(tags);\n\n // pixel value length: divide by 8 to trigger binary write\n const sliceSize = size.getDimSize(2);\n const pixVl = (finalBuffers.length * sliceSize) / 8;\n const de = new DataElement('OB');\n de.tag = new Tag('7FE0', '0010');\n de.vl = pixVl;\n de.value = finalBuffers;\n dicomElements['7FE00010'] = de;\n\n return dicomElements;\n }\n\n} // class MaskFactory\n","import {Index} from '../math/index';\nimport {Point3D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {arrayContains} from '../utils/array';\nimport {getTypedArray} from '../dicom/dicomParser';\nimport {ListenerHandler} from '../utils/listen';\nimport {colourRange} from './iterator';\nimport {RescaleSlopeAndIntercept} from './rsi';\nimport {ImageFactory} from './imageFactory';\nimport {MaskFactory} from './maskFactory';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Geometry} from './geometry';\nimport {Matrix33} from '../math/matrix';\nimport {NumberRange} from '../math/stats';\nimport {DataElement} from '../dicom/dataElement';\nimport {RGB} from '../utils/colour';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get the slice index of an input slice into a volume geometry.\n *\n * @param {Geometry} volumeGeometry The volume geometry.\n * @param {Geometry} sliceGeometry The slice geometry.\n * @returns {Index} The index of the slice in the volume geomtry.\n */\nfunction getSliceIndex(volumeGeometry, sliceGeometry) {\n // possible time\n const timeId = sliceGeometry.getInitialTime();\n // index values\n const values = [];\n // x, y\n values.push(0);\n values.push(0);\n // z\n values.push(volumeGeometry.getSliceIndex(sliceGeometry.getOrigin(), timeId));\n // time\n if (typeof timeId !== 'undefined') {\n values.push(timeId);\n }\n // return index\n return new Index(values);\n}\n\n/**\n * Create an Image from DICOM elements.\n *\n * @param {Object} elements The DICOM elements.\n * @returns {Image} The Image object.\n */\nexport function createImage(elements) {\n const factory = new ImageFactory();\n return factory.create(\n elements,\n elements['7FE00010'].value[0],\n 1\n );\n}\n\n/**\n * Create a mask Image from DICOM elements.\n *\n * @param {Object} elements The DICOM elements.\n * @returns {Image} The mask Image object.\n */\nexport function createMaskImage(elements) {\n const factory = new MaskFactory();\n return factory.create(\n elements,\n elements['7FE00010'].value[0]\n );\n}\n\n/**\n * Image class.\n * Usable once created, optional are:\n * - rescale slope and intercept (default 1:0),\n * - photometric interpretation (default MONOCHROME2),\n * - planar configuration (default RGBRGB...).\n *\n * @example\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * // parse the dicom buffer\n * const dicomParser = new dwv.DicomParser();\n * dicomParser.parse(event.target.response);\n * // create the image object\n * const image = dwv.createImage(dicomParser.getDicomElements());\n * // result div\n * const div = document.getElementById('dwv');\n * // display the image size\n * const size = image.getGeometry().getSize();\n * div.appendChild(document.createTextNode(\n * 'Size: ' + size.toString() +\n * ' (should be 256,256,1)'));\n * // break line\n * div.appendChild(document.createElement('br'));\n * // display a pixel value\n * div.appendChild(document.createTextNode(\n * 'Pixel @ [128,40,0]: ' +\n * image.getRescaledValue(128,40,0) +\n * ' (should be 101)'));\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class Image {\n\n /**\n * Data geometry.\n *\n * @type {Geometry}\n */\n #geometry;\n\n /**\n * List of compatible typed arrays.\n *\n * @typedef {(\n * Uint8Array | Int8Array |\n * Uint16Array | Int16Array |\n * Uint32Array | Int32Array\n * )} TypedArray\n */\n\n /**\n * Data buffer.\n *\n * @type {TypedArray}\n */\n #buffer;\n\n /**\n * Image UIDs.\n *\n * @type {string[]}\n */\n #imageUids;\n\n /**\n * Constant rescale slope and intercept (default).\n *\n * @type {RescaleSlopeAndIntercept}\n */\n #rsi = new RescaleSlopeAndIntercept(1, 0);\n\n /**\n * Varying rescale slope and intercept.\n *\n * @type {RescaleSlopeAndIntercept[]}\n */\n #rsis = null;\n\n /**\n * Flag to know if the RSIs are all identity (1,0).\n *\n * @type {boolean}\n */\n #isIdentityRSI = true;\n\n /**\n * Flag to know if the RSIs are all equals.\n *\n * @type {boolean}\n */\n #isConstantRSI = true;\n\n /**\n * Photometric interpretation (MONOCHROME, RGB...).\n *\n * @type {string}\n */\n #photometricInterpretation = 'MONOCHROME2';\n\n /**\n * Planar configuration for RGB data (`0:RGBRGBRGBRGB...` or\n * `1:RRR...GGG...BBB...`).\n *\n * @type {number}\n */\n #planarConfiguration = 0;\n\n /**\n * Number of components.\n *\n * @type {number}\n */\n #numberOfComponents;\n\n /**\n * Meta information.\n *\n * @type {Object}\n */\n #meta = {};\n\n /**\n * Data range.\n *\n * @type {NumberRange}\n */\n #dataRange = null;\n\n /**\n * Rescaled data range.\n *\n * @type {NumberRange}\n */\n #rescaledDataRange = null;\n\n /**\n * Histogram.\n *\n * @type {Array}\n */\n #histogram = null;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {Geometry} geometry The geometry of the image.\n * @param {TypedArray} buffer The image data as a one dimensional buffer.\n * @param {string[]} [imageUids] An array of Uids indexed to slice number.\n */\n constructor(geometry, buffer, imageUids) {\n this.#geometry = geometry;\n this.#buffer = buffer;\n this.#imageUids = imageUids;\n\n this.#numberOfComponents = this.#buffer.length / (\n this.#geometry.getSize().getTotalSize());\n }\n\n /**\n * Get the image UID at a given index.\n *\n * @param {Index} [index] The index at which to get the id.\n * @returns {string} The UID.\n */\n getImageUid(index) {\n let uid = this.#imageUids[0];\n if (this.#imageUids.length !== 1 && typeof index !== 'undefined') {\n uid = this.#imageUids[this.getSecondaryOffset(index)];\n }\n return uid;\n }\n\n /**\n * Get the image origin for a image UID.\n *\n * @param {string} uid The UID.\n * @returns {Point3D|undefined} The origin.\n */\n getOriginForImageUid(uid) {\n let origin;\n const uidIndex = this.#imageUids.indexOf(uid);\n if (uidIndex !== -1) {\n const origins = this.getGeometry().getOrigins();\n origin = origins[uidIndex];\n }\n return origin;\n }\n\n /**\n * Check if this image includes the input uids.\n *\n * @param {string[]} uids UIDs to test for presence.\n * @returns {boolean} True if all uids are in this image uids.\n */\n containsImageUids(uids) {\n return arrayContains(this.#imageUids, uids);\n }\n\n /**\n * Get the geometry of the image.\n *\n * @returns {Geometry} The geometry.\n */\n getGeometry() {\n return this.#geometry;\n }\n\n /**\n * Get the data buffer of the image.\n *\n * @todo Dangerous...\n * @returns {TypedArray} The data buffer of the image.\n */\n getBuffer() {\n return this.#buffer;\n }\n\n /**\n * Can the image values be quantified?\n *\n * @returns {boolean} True if only one component.\n */\n canQuantify() {\n return this.getNumberOfComponents() === 1;\n }\n\n /**\n * Can window and level be applied to the data?\n *\n * @returns {boolean} True if the data is monochrome.\n * @deprecated Please use isMonochrome instead.\n */\n canWindowLevel() {\n return this.isMonochrome();\n }\n\n /**\n * Is the data monochrome.\n *\n * @returns {boolean} True if the data is monochrome.\n */\n isMonochrome() {\n return this.getPhotometricInterpretation()\n .match(/MONOCHROME/) !== null;\n }\n\n /**\n * Can the data be scrolled?\n *\n * @param {Matrix33} viewOrientation The view orientation.\n * @returns {boolean} True if the data has a third dimension greater than one\n * after applying the view orientation.\n */\n canScroll(viewOrientation) {\n const size = this.getGeometry().getSize();\n // also check the numberOfFiles in case we are in the middle of a load\n let nFiles = 1;\n if (typeof this.#meta.numberOfFiles !== 'undefined') {\n nFiles = this.#meta.numberOfFiles;\n }\n return size.canScroll(viewOrientation) || nFiles !== 1;\n }\n\n /**\n * Get the secondary offset max.\n *\n * @returns {number} The maximum offset.\n */\n #getSecondaryOffsetMax() {\n return this.#geometry.getSize().getTotalSize(2);\n }\n\n /**\n * Get the secondary offset: an offset that takes into account\n * the slice and above dimension numbers.\n *\n * @param {Index} index The index.\n * @returns {number} The offset.\n */\n getSecondaryOffset(index) {\n return this.#geometry.getSize().indexToOffset(index, 2);\n }\n\n /**\n * Get the rescale slope and intercept.\n *\n * @param {Index} [index] The index (only needed for non constant rsi).\n * @returns {RescaleSlopeAndIntercept} The rescale slope and intercept.\n */\n getRescaleSlopeAndIntercept(index) {\n let res = this.#rsi;\n if (!this.isConstantRSI()) {\n if (typeof index === 'undefined') {\n throw new Error('Cannot get non constant RSI with empty slice index.');\n }\n const offset = this.getSecondaryOffset(index);\n if (typeof this.#rsis[offset] !== 'undefined') {\n res = this.#rsis[offset];\n } else {\n logger.warn('undefined non constant rsi at ' + offset);\n }\n }\n return res;\n }\n\n /**\n * Get the rsi at a specified (secondary) offset.\n *\n * @param {number} offset The desired (secondary) offset.\n * @returns {RescaleSlopeAndIntercept} The coresponding rsi.\n */\n #getRescaleSlopeAndInterceptAtOffset(offset) {\n return this.#rsis[offset];\n }\n\n /**\n * Set the rescale slope and intercept.\n *\n * @param {RescaleSlopeAndIntercept} inRsi The input rescale\n * slope and intercept.\n * @param {number} [offset] The rsi offset (only needed for non constant rsi).\n */\n setRescaleSlopeAndIntercept(inRsi, offset) {\n // update identity flag\n this.#isIdentityRSI = this.#isIdentityRSI && inRsi.isID();\n // update constant flag\n if (!this.#isConstantRSI) {\n if (typeof offset === 'undefined') {\n throw new Error(\n 'Cannot store non constant RSI with empty slice index.');\n }\n this.#rsis.splice(offset, 0, inRsi);\n } else {\n if (!this.#rsi.equals(inRsi)) {\n if (typeof offset === 'undefined') {\n // no slice index, replace existing\n this.#rsi = inRsi;\n } else {\n // first non constant rsi\n this.#isConstantRSI = false;\n // switch to non constant mode\n this.#rsis = [];\n // initialise RSIs\n for (let i = 0, leni = this.#getSecondaryOffsetMax(); i < leni; ++i) {\n this.#rsis.push(this.#rsi);\n }\n // store\n this.#rsi = null;\n this.#rsis.splice(offset, 0, inRsi);\n }\n }\n }\n }\n\n /**\n * Are all the RSIs identity (1,0).\n *\n * @returns {boolean} True if they are.\n */\n isIdentityRSI() {\n return this.#isIdentityRSI;\n }\n\n /**\n * Are all the RSIs equal.\n *\n * @returns {boolean} True if they are.\n */\n isConstantRSI() {\n return this.#isConstantRSI;\n }\n\n /**\n * Get the photometricInterpretation of the image.\n *\n * @returns {string} The photometricInterpretation of the image.\n */\n getPhotometricInterpretation() {\n return this.#photometricInterpretation;\n }\n\n /**\n * Set the photometricInterpretation of the image.\n *\n * @param {string} interp The photometricInterpretation of the image.\n */\n setPhotometricInterpretation(interp) {\n this.#photometricInterpretation = interp;\n }\n\n /**\n * Get the planarConfiguration of the image.\n *\n * @returns {number} The planarConfiguration of the image.\n */\n getPlanarConfiguration() {\n return this.#planarConfiguration;\n }\n\n /**\n * Set the planarConfiguration of the image.\n *\n * @param {number} config The planarConfiguration of the image.\n */\n setPlanarConfiguration(config) {\n this.#planarConfiguration = config;\n }\n\n /**\n * Get the numberOfComponents of the image.\n *\n * @returns {number} The numberOfComponents of the image.\n */\n getNumberOfComponents() {\n return this.#numberOfComponents;\n }\n\n /**\n * Get the meta information of the image.\n *\n * @returns {Object} The meta information of the image.\n */\n getMeta() {\n return this.#meta;\n }\n\n /**\n * Set the meta information of the image.\n *\n * @param {Object} rhs The meta information of the image.\n */\n setMeta(rhs) {\n this.#meta = rhs;\n }\n\n /**\n * Get value at offset. Warning: No size check...\n *\n * @param {number} offset The desired offset.\n * @returns {number} The value at offset.\n */\n getValueAtOffset(offset) {\n return this.#buffer[offset];\n }\n\n /**\n * Get the offsets where the buffer equals the input value.\n * Loops through the whole volume, can get long for big data...\n *\n * @param {number|RGB} value The value to check.\n * @returns {number[]} The list of offsets.\n */\n getOffsets(value) {\n // value to array\n let bufferValue;\n if (typeof value === 'number') {\n if (this.#numberOfComponents !== 1) {\n throw new Error(\n 'Number of components is not 1 for getting single value.');\n }\n bufferValue = [value];\n } else if (typeof value.r !== 'undefined' &&\n typeof value.g !== 'undefined' &&\n typeof value.b !== 'undefined') {\n if (this.#numberOfComponents !== 3) {\n throw new Error(\n 'Number of components is not 3 for getting RGB value.');\n }\n bufferValue = [value.r, value.g, value.b];\n }\n\n // main loop\n const offsets = [];\n let equal;\n for (let i = 0; i < this.#buffer.length; i = i + this.#numberOfComponents) {\n equal = true;\n for (let j = 0; j < this.#numberOfComponents; ++j) {\n if (this.#buffer[i + j] !== bufferValue[j]) {\n equal = false;\n break;\n }\n }\n if (equal) {\n offsets.push(i);\n }\n }\n return offsets;\n }\n\n /**\n * Check if the input values are in the buffer.\n * Could loop through the whole volume, can get long for big data...\n *\n * @param {Array} values The values to check.\n * @returns {boolean[]} A list of booleans for each input value,\n * set to true if the value is present in the buffer.\n */\n hasValues(values) {\n // check input\n if (typeof values === 'undefined' ||\n values.length === 0) {\n return [];\n }\n // final array value\n const finalValues = [];\n for (let v1 = 0; v1 < values.length; ++v1) {\n if (this.#numberOfComponents === 1) {\n finalValues.push([values[v1]]);\n } else if (this.#numberOfComponents === 3) {\n finalValues.push([\n values[v1].r,\n values[v1].g,\n values[v1].b\n ]);\n }\n }\n // find callback\n let equalFunc;\n if (this.#numberOfComponents === 1) {\n equalFunc = function (a, b) {\n return a[0] === b[0];\n };\n } else if (this.#numberOfComponents === 3) {\n equalFunc = function (a, b) {\n return a[0] === b[0] &&\n a[1] === b[1] &&\n a[2] === b[2];\n };\n }\n const getEqualCallback = function (value) {\n return function (item) {\n return equalFunc(item, value);\n };\n };\n // main loop\n const res = new Array(values.length);\n res.fill(false);\n const valuesToFind = finalValues.slice();\n let equal;\n let indicesToRemove;\n for (let i = 0, leni = this.#buffer.length;\n i < leni; i = i + this.#numberOfComponents) {\n indicesToRemove = [];\n for (let v = 0; v < valuesToFind.length; ++v) {\n equal = true;\n // check value(s)\n for (let j = 0; j < this.#numberOfComponents; ++j) {\n if (this.#buffer[i + j] !== valuesToFind[v][j]) {\n equal = false;\n break;\n }\n }\n // if found, store answer and add to indices to remove\n if (equal) {\n const valIndex = finalValues.findIndex(\n getEqualCallback(valuesToFind[v]));\n res[valIndex] = true;\n indicesToRemove.push(v);\n }\n }\n // remove found values\n for (let r = 0; r < indicesToRemove.length; ++r) {\n valuesToFind.splice(indicesToRemove[r], 1);\n }\n // exit if no values to find\n if (valuesToFind.length === 0) {\n break;\n }\n }\n // return\n return res;\n }\n\n /**\n * Clone the image.\n *\n * @returns {Image} A clone of this image.\n */\n clone() {\n // clone the image buffer\n const clonedBuffer = this.#buffer.slice(0);\n // create the image copy\n const copy = new Image(this.getGeometry(), clonedBuffer, this.#imageUids);\n // copy the RSI(s)\n if (this.isConstantRSI()) {\n copy.setRescaleSlopeAndIntercept(this.getRescaleSlopeAndIntercept());\n } else {\n for (let i = 0; i < this.#getSecondaryOffsetMax(); ++i) {\n copy.setRescaleSlopeAndIntercept(\n this.#getRescaleSlopeAndInterceptAtOffset(i), i);\n }\n }\n // copy extras\n copy.setPhotometricInterpretation(this.getPhotometricInterpretation());\n copy.setPlanarConfiguration(this.getPlanarConfiguration());\n copy.setMeta(this.getMeta());\n // return\n return copy;\n }\n\n /**\n * Re-allocate buffer memory to an input size.\n *\n * @param {number} size The new size.\n */\n #realloc(size) {\n // save buffer\n let tmpBuffer = this.#buffer;\n // create new\n this.#buffer = getTypedArray(\n this.#buffer.BYTES_PER_ELEMENT * 8,\n this.#meta.IsSigned ? 1 : 0,\n size);\n if (this.#buffer === null) {\n throw new Error('Cannot reallocate data for image.');\n }\n // put old in new\n this.#buffer.set(tmpBuffer);\n // clean\n tmpBuffer = null;\n }\n\n /**\n * Append a slice to the image.\n *\n * @param {Image} rhs The slice to append.\n * @fires Image#imagegeometrychange\n */\n appendSlice(rhs) {\n // check input\n if (rhs === null) {\n throw new Error('Cannot append null slice');\n }\n const rhsSize = rhs.getGeometry().getSize();\n let size = this.#geometry.getSize();\n if (rhsSize.get(2) !== 1) {\n throw new Error('Cannot append more than one slice');\n }\n if (size.get(0) !== rhsSize.get(0)) {\n throw new Error('Cannot append a slice with different number of columns');\n }\n if (size.get(1) !== rhsSize.get(1)) {\n throw new Error('Cannot append a slice with different number of rows');\n }\n if (!this.#geometry.getOrientation().equals(\n rhs.getGeometry().getOrientation(), 0.0001)) {\n throw new Error('Cannot append a slice with different orientation');\n }\n if (this.#photometricInterpretation !==\n rhs.getPhotometricInterpretation()) {\n throw new Error(\n 'Cannot append a slice with different photometric interpretation');\n }\n // all meta should be equal\n for (const key in this.#meta) {\n if (key === 'windowPresets' || key === 'numberOfFiles' ||\n key === 'custom') {\n continue;\n }\n if (this.#meta[key] !== rhs.getMeta()[key]) {\n throw new Error('Cannot append a slice with different ' + key +\n ': ' + this.#meta[key] + ' != ' + rhs.getMeta()[key]);\n }\n }\n\n // update ranges\n const rhsRange = rhs.getDataRange();\n const range = this.getDataRange();\n this.#dataRange = {\n min: Math.min(rhsRange.min, range.min),\n max: Math.max(rhsRange.max, range.max),\n };\n const rhsResRange = rhs.getRescaledDataRange();\n const resRange = this.getRescaledDataRange();\n this.#rescaledDataRange = {\n min: Math.min(rhsResRange.min, resRange.min),\n max: Math.max(rhsResRange.max, resRange.max),\n };\n\n // possible time\n const timeId = rhs.getGeometry().getInitialTime();\n\n // append frame if needed\n let isNewFrame = false;\n if (typeof timeId !== 'undefined' &&\n !this.#geometry.hasSlicesAtTime(timeId)) {\n // update grometry\n this.appendFrame(timeId, rhs.getGeometry().getOrigin());\n // update size\n size = this.#geometry.getSize();\n // update flag\n isNewFrame = true;\n }\n\n // get slice index\n const index = getSliceIndex(this.#geometry, rhs.getGeometry());\n\n // calculate slice size\n const sliceSize = this.#numberOfComponents * size.getDimSize(2);\n\n // create full buffer if not done yet\n if (typeof this.#meta.numberOfFiles === 'undefined') {\n throw new Error('Missing number of files for buffer manipulation.');\n }\n const fullBufferSize = sliceSize * this.#meta.numberOfFiles;\n if (this.#buffer.length !== fullBufferSize) {\n this.#realloc(fullBufferSize);\n }\n\n // slice index\n const sliceIndex = index.get(2);\n\n // slice index including possible 4D\n let fullSliceIndex = sliceIndex;\n if (typeof timeId !== 'undefined') {\n fullSliceIndex +=\n this.#geometry.getCurrentNumberOfSlicesBeforeTime(timeId);\n }\n // offset of the input slice\n const indexOffset = fullSliceIndex * sliceSize;\n const maxOffset =\n this.#geometry.getCurrentTotalNumberOfSlices() * sliceSize;\n // move content if needed\n if (indexOffset < maxOffset) {\n this.#buffer.set(\n this.#buffer.subarray(indexOffset, maxOffset),\n indexOffset + sliceSize\n );\n }\n // add new slice content\n this.#buffer.set(rhs.getBuffer(), indexOffset);\n\n // update geometry\n if (!isNewFrame) {\n this.#geometry.appendOrigin(\n rhs.getGeometry().getOrigin(), sliceIndex, timeId);\n }\n // update rsi\n // (rhs should just have one rsi)\n this.setRescaleSlopeAndIntercept(\n rhs.getRescaleSlopeAndIntercept(), fullSliceIndex);\n\n // current number of images\n const numberOfImages = this.#imageUids.length;\n\n // insert sop instance UIDs\n this.#imageUids.splice(fullSliceIndex, 0, rhs.getImageUid());\n\n // update window presets\n if (typeof this.#meta.windowPresets !== 'undefined') {\n const windowPresets = this.#meta.windowPresets;\n const rhsPresets = rhs.getMeta().windowPresets;\n const keys = Object.keys(rhsPresets);\n let pkey = null;\n for (let i = 0; i < keys.length; ++i) {\n pkey = keys[i];\n const rhsPreset = rhsPresets[pkey];\n const windowPreset = windowPresets[pkey];\n if (typeof windowPreset !== 'undefined') {\n // if not set or false, check perslice\n if (typeof windowPreset.perslice === 'undefined' ||\n windowPreset.perslice === false) {\n // if different preset.wl, mark it as perslice\n if (!windowPreset.wl[0].equals(rhsPreset.wl[0])) {\n windowPreset.perslice = true;\n // fill wl array with copy of wl[0]\n // (loop on number of images minus the existing one)\n for (let j = 0; j < numberOfImages - 1; ++j) {\n windowPreset.wl.push(windowPreset.wl[0]);\n }\n }\n }\n // store (first) rhs preset.wl if needed\n if (typeof windowPreset.perslice !== 'undefined' &&\n windowPreset.perslice === true) {\n windowPresets[pkey].wl.splice(\n fullSliceIndex, 0, rhsPreset.wl[0]);\n }\n } else {\n // if not defined (it should be), store all\n windowPresets[pkey] = rhsPresets[pkey];\n }\n }\n }\n /**\n * Image geometry change event.\n *\n * @event Image#imagegeometrychange\n * @type {object}\n */\n this.#fireEvent({type: 'imagegeometrychange'});\n }\n\n /**\n * Append a frame buffer to the image.\n *\n * @param {object} frameBuffer The frame buffer to append.\n * @param {number} frameIndex The frame index.\n */\n appendFrameBuffer(frameBuffer, frameIndex) {\n // create full buffer if not done yet\n const size = this.#geometry.getSize();\n const frameSize = this.#numberOfComponents * size.getDimSize(2);\n if (typeof this.#meta.numberOfFiles === 'undefined') {\n throw new Error('Missing number of files for frame buffer manipulation.');\n }\n const fullBufferSize = frameSize * this.#meta.numberOfFiles;\n if (this.#buffer.length !== fullBufferSize) {\n this.#realloc(fullBufferSize);\n }\n // check index\n if (frameIndex >= this.#meta.numberOfFiles) {\n logger.warn('Ignoring frame at index ' + frameIndex +\n ' (size: ' + this.#meta.numberOfFiles + ')');\n return;\n }\n // append\n this.#buffer.set(frameBuffer, frameSize * frameIndex);\n // update geometry\n this.appendFrame(frameIndex, new Point3D(0, 0, 0));\n }\n\n /**\n * Append a frame to the image.\n *\n * @param {number} time The frame time value.\n * @param {Point3D} origin The origin of the frame.\n */\n appendFrame(time, origin) {\n this.#geometry.appendFrame(origin, time);\n this.#fireEvent({type: 'appendframe'});\n // memory will be updated at the first appendSlice or appendFrameBuffer\n }\n\n /**\n * Get the data range.\n *\n * @returns {NumberRange} The data range.\n */\n getDataRange() {\n if (!this.#dataRange) {\n this.#dataRange = this.calculateDataRange();\n }\n return this.#dataRange;\n }\n\n /**\n * Get the rescaled data range.\n *\n * @returns {NumberRange} The rescaled data range.\n */\n getRescaledDataRange() {\n if (!this.#rescaledDataRange) {\n this.#rescaledDataRange = this.calculateRescaledDataRange();\n }\n return this.#rescaledDataRange;\n }\n\n /**\n * Get the histogram.\n *\n * @returns {Array} The histogram.\n */\n getHistogram() {\n if (!this.#histogram) {\n const res = this.calculateHistogram();\n this.#dataRange = res.dataRange;\n this.#rescaledDataRange = res.rescaledDataRange;\n this.#histogram = res.histogram;\n }\n return this.#histogram;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n // ****************************************\n // image data modifiers... carefull...\n // ****************************************\n\n /**\n * Set the inner buffer values at given offsets.\n *\n * @param {number[]} offsets List of offsets where to set the data.\n * @param {number|RGB} value The value to set at the given offsets.\n * @fires Image#imagecontentchange\n */\n setAtOffsets(offsets, value) {\n // value to array\n let bufferValue;\n if (typeof value === 'number') {\n if (this.#numberOfComponents !== 1) {\n throw new Error(\n 'Number of components is not 1 for setting single value.');\n }\n bufferValue = [value];\n } else if (typeof value.r !== 'undefined' &&\n typeof value.g !== 'undefined' &&\n typeof value.b !== 'undefined') {\n if (this.#numberOfComponents !== 3) {\n throw new Error(\n 'Number of components is not 3 for setting RGB value.');\n }\n bufferValue = [value.r, value.g, value.b];\n }\n\n let offset;\n for (let i = 0, leni = offsets.length; i < leni; ++i) {\n offset = offsets[i];\n for (let j = 0; j < this.#numberOfComponents; ++j) {\n this.#buffer[offset + j] = bufferValue[j];\n }\n }\n // fire imagecontentchange\n this.#fireEvent({type: 'imagecontentchange'});\n }\n\n /**\n * Set the inner buffer values at given offsets.\n *\n * @param {number[][]} offsetsLists List of offset lists where\n * to set the data.\n * @param {RGB} value The value to set at the given offsets.\n * @returns {Array} A list of objects representing the original values before\n * replacing them.\n * @fires Image#imagecontentchange\n */\n setAtOffsetsAndGetOriginals(offsetsLists, value) {\n const originalColoursLists = [];\n\n // update and store\n for (let j = 0; j < offsetsLists.length; ++j) {\n const offsets = offsetsLists[j];\n // first colour\n let offset = offsets[0] * 3;\n let previousColour = {\n r: this.#buffer[offset],\n g: this.#buffer[offset + 1],\n b: this.#buffer[offset + 2]\n };\n // original value storage\n const originalColours = [];\n originalColours.push({\n index: 0,\n colour: previousColour\n });\n for (let i = 0; i < offsets.length; ++i) {\n offset = offsets[i] * 3;\n const currentColour = {\n r: this.#buffer[offset],\n g: this.#buffer[offset + 1],\n b: this.#buffer[offset + 2]\n };\n // check if new colour\n if (previousColour.r !== currentColour.r ||\n previousColour.g !== currentColour.g ||\n previousColour.b !== currentColour.b) {\n // store new colour\n originalColours.push({\n index: i,\n colour: currentColour\n });\n previousColour = currentColour;\n }\n // write update colour\n this.#buffer[offset] = value.r;\n this.#buffer[offset + 1] = value.g;\n this.#buffer[offset + 2] = value.b;\n }\n originalColoursLists.push(originalColours);\n }\n // fire imagecontentchange\n this.#fireEvent({type: 'imagecontentchange'});\n return originalColoursLists;\n }\n\n /**\n * Set the inner buffer values at given offsets.\n *\n * @param {number[][]} offsetsLists List of offset lists\n * where to set the data.\n * @param {RGB|Array} value The value to set at the given offsets.\n * @fires Image#imagecontentchange\n */\n setAtOffsetsWithIterator(offsetsLists, value) {\n for (let j = 0; j < offsetsLists.length; ++j) {\n const offsets = offsetsLists[j];\n let iterator;\n if (Array.isArray(value)) {\n // input value is a list of iterators\n // created by setAtOffsetsAndGetOriginals\n iterator = colourRange(\n value[j], offsets.length);\n } else if (typeof value.r !== 'undefined' &&\n typeof value.g !== 'undefined' &&\n typeof value.b !== 'undefined') {\n // input value is a simple color\n iterator = colourRange(\n [{index: 0, colour: value}], offsets.length);\n }\n\n // set values\n let ival = iterator.next();\n while (!ival.done) {\n const offset = offsets[ival.index] * 3;\n this.#buffer[offset] = ival.value.r;\n this.#buffer[offset + 1] = ival.value.g;\n this.#buffer[offset + 2] = ival.value.b;\n ival = iterator.next();\n }\n }\n /**\n * Image change event.\n *\n * @event Image#imagecontentchange\n * @type {object}\n */\n this.#fireEvent({type: 'imagecontentchange'});\n }\n\n /**\n * Get the value of the image at a specific coordinate.\n *\n * @param {number} i The X index.\n * @param {number} j The Y index.\n * @param {number} k The Z index.\n * @param {number} f The frame number.\n * @returns {number} The value at the desired position.\n * Warning: No size check...\n */\n getValue(i, j, k, f) {\n const frame = (f || 0);\n const index = new Index([i, j, k, frame]);\n return this.getValueAtOffset(\n this.getGeometry().getSize().indexToOffset(index));\n }\n\n /**\n * Get the value of the image at a specific index.\n *\n * @param {Index} index The index.\n * @returns {number} The value at the desired position.\n * Warning: No size check...\n */\n getValueAtIndex(index) {\n return this.getValueAtOffset(\n this.getGeometry().getSize().indexToOffset(index));\n }\n\n /**\n * Get the rescaled value of the image at a specific position.\n *\n * @param {number} i The X index.\n * @param {number} j The Y index.\n * @param {number} k The Z index.\n * @param {number} f The frame number.\n * @returns {number} The rescaled value at the desired position.\n * Warning: No size check...\n */\n getRescaledValue(i, j, k, f) {\n if (typeof f === 'undefined') {\n f = 0;\n }\n let val = this.getValue(i, j, k, f);\n if (!this.isIdentityRSI()) {\n if (this.isConstantRSI()) {\n val = this.getRescaleSlopeAndIntercept().apply(val);\n } else {\n const values = [i, j, k, f];\n const index = new Index(values);\n val = this.getRescaleSlopeAndIntercept(index).apply(val);\n }\n }\n return val;\n }\n\n /**\n * Get the rescaled value of the image at a specific index.\n *\n * @param {Index} index The index.\n * @returns {number} The rescaled value at the desired position.\n * Warning: No size check...\n */\n getRescaledValueAtIndex(index) {\n return this.getRescaledValueAtOffset(\n this.getGeometry().getSize().indexToOffset(index)\n );\n }\n\n /**\n * Get the rescaled value of the image at a specific offset.\n *\n * @param {number} offset The desired offset.\n * @returns {number} The rescaled value at the desired offset.\n * Warning: No size check...\n */\n getRescaledValueAtOffset(offset) {\n let val = this.getValueAtOffset(offset);\n if (!this.isIdentityRSI()) {\n if (this.isConstantRSI()) {\n val = this.getRescaleSlopeAndIntercept().apply(val);\n } else {\n const index = this.getGeometry().getSize().offsetToIndex(offset);\n val = this.getRescaleSlopeAndIntercept(index).apply(val);\n }\n }\n return val;\n }\n\n /**\n * Calculate the data range of the image.\n * WARNING: for speed reasons, only calculated on the first frame...\n *\n * @returns {object} The range {min, max}.\n */\n calculateDataRange() {\n let min = this.getValueAtOffset(0);\n let max = min;\n let value = 0;\n const size = this.getGeometry().getSize();\n let leni = size.getTotalSize();\n // max to 3D\n if (size.length() >= 3) {\n leni = size.getDimSize(3);\n }\n for (let i = 0; i < leni; ++i) {\n value = this.getValueAtOffset(i);\n if (value > max) {\n max = value;\n }\n if (value < min) {\n min = value;\n }\n }\n // return\n return {min: min, max: max};\n }\n\n /**\n * Calculate the rescaled data range of the image.\n * WARNING: for speed reasons, only calculated on the first frame...\n *\n * @returns {object} The range {min, max}.\n */\n calculateRescaledDataRange() {\n if (this.isIdentityRSI()) {\n return this.getDataRange();\n } else if (this.isConstantRSI()) {\n const range = this.getDataRange();\n const resmin = this.getRescaleSlopeAndIntercept().apply(range.min);\n const resmax = this.getRescaleSlopeAndIntercept().apply(range.max);\n return {\n min: ((resmin < resmax) ? resmin : resmax),\n max: ((resmin > resmax) ? resmin : resmax)\n };\n } else {\n let rmin = this.getRescaledValueAtOffset(0);\n let rmax = rmin;\n let rvalue = 0;\n const size = this.getGeometry().getSize();\n let leni = size.getTotalSize();\n // max to 3D\n if (size.length() === 3) {\n leni = size.getDimSize(3);\n }\n for (let i = 0; i < leni; ++i) {\n rvalue = this.getRescaledValueAtOffset(i);\n if (rvalue > rmax) {\n rmax = rvalue;\n }\n if (rvalue < rmin) {\n rmin = rvalue;\n }\n }\n // return\n return {min: rmin, max: rmax};\n }\n }\n\n /**\n * Calculate the histogram of the image.\n *\n * @returns {object} The histogram, data range and rescaled data range.\n */\n calculateHistogram() {\n const size = this.getGeometry().getSize();\n const histo = [];\n let min = this.getValueAtOffset(0);\n let max = min;\n let value = 0;\n let rmin = this.getRescaledValueAtOffset(0);\n let rmax = rmin;\n let rvalue = 0;\n for (let i = 0, leni = size.getTotalSize(); i < leni; ++i) {\n value = this.getValueAtOffset(i);\n if (value > max) {\n max = value;\n }\n if (value < min) {\n min = value;\n }\n rvalue = this.getRescaledValueAtOffset(i);\n if (rvalue > rmax) {\n rmax = rvalue;\n }\n if (rvalue < rmin) {\n rmin = rvalue;\n }\n histo[rvalue] = (histo[rvalue] || 0) + 1;\n }\n // set data range\n const dataRange = {min: min, max: max};\n const rescaledDataRange = {min: rmin, max: rmax};\n // generate data for plotting\n const histogram = [];\n for (let b = rmin; b <= rmax; ++b) {\n histogram.push([b, (histo[b] || 0)]);\n }\n // return\n return {\n dataRange: dataRange,\n rescaledDataRange: rescaledDataRange,\n histogram: histogram\n };\n }\n\n /**\n * Convolute the image with a given 2D kernel.\n *\n * Note: Uses raw buffer values.\n *\n * @param {number[]} weights The weights of the 2D kernel as a 3x3 matrix.\n * @returns {Image} The convoluted image.\n */\n convolute2D(weights) {\n if (weights.length !== 9) {\n throw new Error(\n 'The convolution matrix does not have a length of 9; it has ' +\n weights.length);\n }\n\n const newImage = this.clone();\n const newBuffer = newImage.getBuffer();\n\n const imgSize = this.getGeometry().getSize();\n const dimOffset = imgSize.getDimSize(2) * this.getNumberOfComponents();\n for (let k = 0; k < imgSize.get(2); ++k) {\n this.convoluteBuffer(weights, newBuffer, k * dimOffset);\n }\n\n return newImage;\n }\n\n /**\n * Convolute an image buffer with a given 2D kernel.\n *\n * Note: Uses raw buffer values.\n *\n * @param {number[]} weights The weights of the 2D kernel as a 3x3 matrix.\n * @param {TypedArray} buffer The buffer to convolute.\n * @param {number} startOffset The index to start at.\n */\n convoluteBuffer(\n weights, buffer, startOffset) {\n const imgSize = this.getGeometry().getSize();\n const ncols = imgSize.get(0);\n const nrows = imgSize.get(1);\n const ncomp = this.getNumberOfComponents();\n\n // number of component and planar configuration vars\n let factor = 1;\n let componentOffset = 1;\n if (ncomp === 3) {\n if (this.getPlanarConfiguration() === 0) {\n factor = 3;\n } else {\n componentOffset = imgSize.getDimSize(2);\n }\n }\n\n // allow special indent for matrices\n /*jshint indent:false */\n\n // default weight offset matrix\n const wOff = [];\n wOff[0] = (-ncols - 1) * factor;\n wOff[1] = (-ncols) * factor;\n wOff[2] = (-ncols + 1) * factor;\n wOff[3] = -factor;\n wOff[4] = 0;\n wOff[5] = 1 * factor;\n wOff[6] = (ncols - 1) * factor;\n wOff[7] = (ncols) * factor;\n wOff[8] = (ncols + 1) * factor;\n\n // border weight offset matrices\n // borders are extended (see http://en.wikipedia.org/wiki/Kernel_%28image_processing%29)\n\n // i=0, j=0\n const wOff00 = [];\n wOff00[0] = wOff[4]; wOff00[1] = wOff[4]; wOff00[2] = wOff[5];\n wOff00[3] = wOff[4]; wOff00[4] = wOff[4]; wOff00[5] = wOff[5];\n wOff00[6] = wOff[7]; wOff00[7] = wOff[7]; wOff00[8] = wOff[8];\n // i=0, j=*\n const wOff0x = [];\n wOff0x[0] = wOff[1]; wOff0x[1] = wOff[1]; wOff0x[2] = wOff[2];\n wOff0x[3] = wOff[4]; wOff0x[4] = wOff[4]; wOff0x[5] = wOff[5];\n wOff0x[6] = wOff[7]; wOff0x[7] = wOff[7]; wOff0x[8] = wOff[8];\n // i=0, j=nrows\n const wOff0n = [];\n wOff0n[0] = wOff[1]; wOff0n[1] = wOff[1]; wOff0n[2] = wOff[2];\n wOff0n[3] = wOff[4]; wOff0n[4] = wOff[4]; wOff0n[5] = wOff[5];\n wOff0n[6] = wOff[4]; wOff0n[7] = wOff[4]; wOff0n[8] = wOff[5];\n\n // i=*, j=0\n const wOffx0 = [];\n wOffx0[0] = wOff[3]; wOffx0[1] = wOff[4]; wOffx0[2] = wOff[5];\n wOffx0[3] = wOff[3]; wOffx0[4] = wOff[4]; wOffx0[5] = wOff[5];\n wOffx0[6] = wOff[6]; wOffx0[7] = wOff[7]; wOffx0[8] = wOff[8];\n // i=*, j=* -> wOff\n // i=*, j=nrows\n const wOffxn = [];\n wOffxn[0] = wOff[0]; wOffxn[1] = wOff[1]; wOffxn[2] = wOff[2];\n wOffxn[3] = wOff[3]; wOffxn[4] = wOff[4]; wOffxn[5] = wOff[5];\n wOffxn[6] = wOff[3]; wOffxn[7] = wOff[4]; wOffxn[8] = wOff[5];\n\n // i=ncols, j=0\n const wOffn0 = [];\n wOffn0[0] = wOff[3]; wOffn0[1] = wOff[4]; wOffn0[2] = wOff[4];\n wOffn0[3] = wOff[3]; wOffn0[4] = wOff[4]; wOffn0[5] = wOff[4];\n wOffn0[6] = wOff[6]; wOffn0[7] = wOff[7]; wOffn0[8] = wOff[7];\n // i=ncols, j=*\n const wOffnx = [];\n wOffnx[0] = wOff[0]; wOffnx[1] = wOff[1]; wOffnx[2] = wOff[1];\n wOffnx[3] = wOff[3]; wOffnx[4] = wOff[4]; wOffnx[5] = wOff[4];\n wOffnx[6] = wOff[6]; wOffnx[7] = wOff[7]; wOffnx[8] = wOff[7];\n // i=ncols, j=nrows\n const wOffnn = [];\n wOffnn[0] = wOff[0]; wOffnn[1] = wOff[1]; wOffnn[2] = wOff[1];\n wOffnn[3] = wOff[3]; wOffnn[4] = wOff[4]; wOffnn[5] = wOff[4];\n wOffnn[6] = wOff[3]; wOffnn[7] = wOff[4]; wOffnn[8] = wOff[4];\n\n // restore indent for rest of method\n /*jshint indent:4 */\n\n // loop vars\n let pixelOffset = startOffset;\n let newValue = 0;\n let wOffFinal = [];\n for (let c = 0; c < ncomp; ++c) {\n // component offset\n pixelOffset += c * componentOffset;\n for (let j = 0; j < nrows; ++j) {\n for (let i = 0; i < ncols; ++i) {\n wOffFinal = wOff;\n // special border cases\n if (i === 0 && j === 0) {\n wOffFinal = wOff00;\n } else if (i === 0 && j === (nrows - 1)) {\n wOffFinal = wOff0n;\n } else if (i === (ncols - 1) && j === 0) {\n wOffFinal = wOffn0;\n } else if (i === (ncols - 1) && j === (nrows - 1)) {\n wOffFinal = wOffnn;\n } else if (i === 0 && j !== (nrows - 1) && j !== 0) {\n wOffFinal = wOff0x;\n } else if (i === (ncols - 1) && j !== (nrows - 1) && j !== 0) {\n wOffFinal = wOffnx;\n } else if (i !== 0 && i !== (ncols - 1) && j === 0) {\n wOffFinal = wOffx0;\n } else if (i !== 0 && i !== (ncols - 1) && j === (nrows - 1)) {\n wOffFinal = wOffxn;\n }\n // calculate the weighed sum of the source image pixels that\n // fall under the convolution matrix\n newValue = 0;\n for (let wi = 0; wi < 9; ++wi) {\n newValue += this.getValueAtOffset(\n pixelOffset + wOffFinal[wi]) * weights[wi];\n }\n buffer[pixelOffset] = newValue;\n // increment pixel offset\n pixelOffset += factor;\n }\n }\n }\n }\n\n /**\n * Transform an image using a specific operator.\n * WARNING: no size check!\n *\n * @param {Function} operator The operator to use when transforming.\n * @returns {Image} The transformed image.\n * Note: Uses the raw buffer values.\n */\n transform(operator) {\n const newImage = this.clone();\n const newBuffer = newImage.getBuffer();\n for (let i = 0, leni = newBuffer.length; i < leni; ++i) {\n newBuffer[i] = operator(newImage.getValueAtOffset(i));\n }\n return newImage;\n }\n\n /**\n * Compose this image with another one and using a specific operator.\n * WARNING: no size check!\n *\n * @param {Image} rhs The image to compose with.\n * @param {Function} operator The operator to use when composing.\n * @returns {Image} The composed image.\n * Note: Uses the raw buffer values.\n */\n compose(rhs, operator) {\n const newImage = this.clone();\n const newBuffer = newImage.getBuffer();\n for (let i = 0, leni = newBuffer.length; i < leni; ++i) {\n // using the operator on the local buffer, i.e. the\n // latest (not original) data\n newBuffer[i] = Math.floor(\n operator(this.getValueAtOffset(i), rhs.getValueAtOffset(i))\n );\n }\n return newImage;\n }\n\n} // class Image\n","import {View} from './view';\nimport {luts} from './luts';\nimport {\n WindowLevel,\n defaultPresets\n} from './windowLevel';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {DataElement} from '../dicom/dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * {@link View} factory.\n */\nexport class ViewFactory {\n\n /**\n * Get an View object from the read DICOM file.\n *\n * @param {Object} dataElements The DICOM tags.\n * @param {Image} image The associated image.\n * @returns {View} The new View.\n */\n create(dataElements, image) {\n // view\n const view = new View(image);\n\n // default color map\n if (image.getPhotometricInterpretation() === 'MONOCHROME1') {\n view.setColourMap('invPlain');\n } else if (image.getPhotometricInterpretation() === 'PALETTE COLOR') {\n if (typeof luts['palette'] !== 'undefined') {\n view.setColourMap('palette');\n } else {\n logger.warn('Cannot find Palette lut');\n }\n }\n\n // window level presets\n let windowPresets = {};\n // image presets\n if (typeof image.getMeta().windowPresets !== 'undefined') {\n windowPresets = image.getMeta().windowPresets;\n }\n // min/max\n // Not filled yet since it is stil too costly to calculate min/max\n // for each slice... It will be filled at first use\n // (see view.setWindowLevelPreset).\n // Order is important, if no wl from DICOM, this will be the default.\n windowPresets.minmax = {name: 'minmax'};\n // optional modality presets\n if (typeof defaultPresets !== 'undefined') {\n const modality = image.getMeta().Modality;\n for (const key in defaultPresets[modality]) {\n const preset = defaultPresets[modality][key];\n windowPresets[key] = {\n wl: [new WindowLevel(preset.center, preset.width)],\n name: key\n };\n }\n }\n\n // store\n view.setWindowPresets(windowPresets);\n\n // initialise the view\n view.init();\n\n return view;\n }\n\n} // class ViewFactory\n","import {Index} from '../math/index';\nimport {ModalityLut} from './modalityLut';\nimport {WindowLut} from './windowLut';\nimport {luts} from './luts';\nimport {VoiLut} from './voiLut';\nimport {WindowLevel} from './windowLevel';\nimport {generateImageDataMonochrome} from './viewMonochrome';\nimport {generateImageDataPaletteColor} from './viewPaletteColor';\nimport {generateImageDataRgb} from './viewRgb';\nimport {generateImageDataYbrFull} from './viewYbrFull';\nimport {ViewFactory} from './viewFactory';\nimport {getSliceIterator} from '../image/iterator';\nimport {ListenerHandler} from '../utils/listen';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {RescaleSlopeAndIntercept} from './rsi';\nimport {ColourMap} from './luts';\nimport {Matrix33} from '../math/matrix';\nimport {\n Point,\n Point3D\n} from '../math/point';\nimport {DataElement} from '../dicom/dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * List of view event names.\n *\n * @type {string[]}\n */\nexport const viewEventNames = [\n 'wlchange',\n 'wlpresetadd',\n 'colourmapchange',\n 'positionchange',\n 'opacitychange',\n 'alphafuncchange'\n];\n\n/**\n * Create a View from DICOM elements and image.\n *\n * @param {Object} elements The DICOM elements.\n * @param {Image} image The associated image.\n * @returns {View} The View object.\n */\nexport function createView(elements, image) {\n const factory = new ViewFactory();\n return factory.create(elements, image);\n}\n\n/**\n * View class.\n *\n * Need to set the window lookup table once created\n * (either directly or with helper methods).\n *\n * @example\n * // XMLHttpRequest onload callback\n * const onload = function (event) {\n * // parse the dicom buffer\n * const dicomParser = new dwv.DicomParser();\n * dicomParser.parse(event.target.response);\n * // create the image object\n * const image = dwv.createImage(dicomParser.getDicomElements());\n * // create the view\n * const view = dwv.createView(dicomParser.getDicomElements(), image);\n * // setup canvas\n * const canvas = document.createElement('canvas');\n * canvas.width = 256;\n * canvas.height = 256;\n * const ctx = canvas.getContext(\"2d\");\n * // update the image data\n * const imageData = ctx.createImageData(256, 256);\n * view.generateImageData(imageData);\n * ctx.putImageData(imageData, 0, 0);\n * // update html\n * const div = document.getElementById('dwv');\n * div.appendChild(canvas);;\n * };\n * // DICOM file request\n * const request = new XMLHttpRequest();\n * const url = 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm';\n * request.open('GET', url);\n * request.responseType = 'arraybuffer';\n * request.onload = onload;\n * request.send();\n */\nexport class View {\n\n /**\n * The associated image.\n *\n * @type {Image}\n */\n #image;\n\n /**\n * Window lookup tables, indexed per Rescale Slope and Intercept (RSI).\n *\n * @type {WindowLut}\n */\n #windowLut;\n\n /**\n * Flag for image constant RSI.\n *\n * @type {boolean}\n */\n #isConstantRSI;\n\n /**\n * Window presets.\n * Minmax will be filled at first use (see view.setWindowLevelPreset).\n *\n * @type {object}\n */\n #windowPresets = {minmax: {name: 'minmax'}};\n\n /**\n * Current window preset name.\n *\n * @type {string}\n */\n #currentPresetName = null;\n\n /**\n * Current window level.\n *\n * @type {WindowLevel}\n */\n #currentWl;\n\n /**\n * Colour map name.\n *\n * @type {string}\n */\n #colourMapName = 'plain';\n\n /**\n * Current position as a Point.\n * Store position and not index to stay geometry independent.\n *\n * @type {Point}\n */\n #currentPosition = null;\n\n /**\n * View orientation. Undefined will use the original slice ordering.\n *\n * @type {Matrix33}\n */\n #orientation;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {Image} image The associated image.\n */\n constructor(image) {\n this.#image = image;\n\n // listen to appendframe event to update the current position\n // to add the extra dimension\n this.#image.addEventListener('appendframe', () => {\n // update current position if first appendFrame\n const index = this.getCurrentIndex();\n if (index.length() === 3) {\n // add dimension\n const values = index.getValues();\n values.push(0);\n this.setCurrentIndex(new Index(values));\n }\n });\n }\n\n /**\n * Get the associated image.\n *\n * @returns {Image} The associated image.\n */\n getImage() {\n return this.#image;\n }\n\n /**\n * Set the associated image.\n *\n * @param {Image} inImage The associated image.\n */\n setImage(inImage) {\n this.#image = inImage;\n }\n\n /**\n * Get the view orientation.\n *\n * @returns {Matrix33} The orientation matrix.\n */\n getOrientation() {\n return this.#orientation;\n }\n\n /**\n * Set the view orientation.\n *\n * @param {Matrix33} mat33 The orientation matrix.\n */\n setOrientation(mat33) {\n this.#orientation = mat33;\n }\n\n /**\n * Initialise the view: set initial index.\n */\n init() {\n this.setInitialIndex();\n }\n\n /**\n * Set the initial index to the middle position.\n */\n setInitialIndex() {\n const geometry = this.#image.getGeometry();\n const size = geometry.getSize();\n const values = new Array(size.length());\n values.fill(0);\n // middle\n values[0] = Math.floor(size.get(0) / 2);\n values[1] = Math.floor(size.get(1) / 2);\n values[2] = Math.floor(size.get(2) / 2);\n this.setCurrentIndex(new Index(values), true);\n }\n\n /**\n * Get the milliseconds per frame from frame rate.\n *\n * @param {number} recommendedDisplayFrameRate Recommended Display Frame Rate.\n * @returns {number} The milliseconds per frame.\n */\n getPlaybackMilliseconds(recommendedDisplayFrameRate) {\n if (!recommendedDisplayFrameRate) {\n // Default to 10 FPS if none is found in the meta\n recommendedDisplayFrameRate = 10;\n }\n // round milliseconds per frame to nearest whole number\n return Math.round(1000 / recommendedDisplayFrameRate);\n }\n\n /**\n * Per value alpha function.\n *\n * @param {number[]|number} _value The pixel value.\n * Can be a number for monochrome data or an array for RGB data.\n * @param {number} _index The index of the value.\n * @returns {number} The coresponding alpha [0,255].\n */\n #alphaFunction = function (_value, _index) {\n // default always returns fully visible\n return 0xff;\n };\n\n /**\n * @callback alphaFn\n * @param {number[]|number} value The pixel value.\n * @param {number} index The values' index.\n * @returns {number} The opacity of the input value.\n */\n\n /**\n * Get the alpha function.\n *\n * @returns {alphaFn} The function.\n */\n getAlphaFunction() {\n return this.#alphaFunction;\n }\n\n /**\n * Set alpha function.\n *\n * @param {alphaFn} func The function.\n * @fires View#alphafuncchange\n */\n setAlphaFunction(func) {\n this.#alphaFunction = func;\n /**\n * Alpha func change event.\n *\n * @event View#alphafuncchange\n * @type {object}\n */\n this.#fireEvent({\n type: 'alphafuncchange'\n });\n }\n\n /**\n * Get the window LUT of the image.\n * Warning: can be undefined in no window/level was set.\n *\n * @returns {WindowLut} The window LUT of the image.\n * @fires View#wlchange\n */\n #getCurrentWindowLut() {\n // special case for 'perslice' presets\n if (this.#currentPresetName &&\n typeof this.#windowPresets[this.#currentPresetName] !== 'undefined' &&\n typeof this.#windowPresets[this.#currentPresetName].perslice !==\n 'undefined' &&\n this.#windowPresets[this.#currentPresetName].perslice === true) {\n // check position\n if (!this.getCurrentIndex()) {\n this.setInitialIndex();\n }\n // get the slice window level\n const currentIndex = this.getCurrentIndex();\n const offset = this.#image.getSecondaryOffset(currentIndex);\n const currentPreset = this.#windowPresets[this.#currentPresetName];\n const sliceWl = currentPreset.wl[offset];\n // set window level: will send a change event, mark it as silent as\n // this change is always triggered by a position change\n this.setWindowLevel(sliceWl, this.#currentPresetName, true);\n }\n\n // if no current, use first id\n if (typeof this.#currentWl === 'undefined') {\n this.setWindowLevelPresetById(0, true);\n }\n\n // get the window lut\n if (typeof this.#isConstantRSI === 'undefined' ||\n this.#image.isConstantRSI() !== this.#isConstantRSI) {\n this.#isConstantRSI = this.#image.isConstantRSI();\n // set or update windowLut if isConstantRSI has changed\n // (can be different at first slice and after having loaded\n // the full volume...)\n let rsi;\n let isDiscrete;\n if (this.#isConstantRSI) {\n rsi = this.#image.getRescaleSlopeAndIntercept();\n isDiscrete = true;\n } else {\n rsi = new RescaleSlopeAndIntercept(1, 0);\n isDiscrete = false;\n }\n // create the rescale lookup table\n const modalityLut = new ModalityLut(\n rsi,\n this.#image.getMeta().BitsStored);\n // create the window lookup table\n this.#windowLut = new WindowLut(\n modalityLut,\n this.#image.getMeta().IsSigned,\n isDiscrete);\n }\n\n // update VOI lut if not present or its window level\n // is different from the current one\n const voiLut = this.#windowLut.getVoiLut();\n let voiLutWl;\n if (typeof voiLut !== 'undefined') {\n voiLutWl = voiLut.getWindowLevel();\n }\n if (typeof voiLut === 'undefined' ||\n !this.#currentWl.equals(voiLutWl)) {\n // set lut window level\n const voiLut = new VoiLut(this.#currentWl);\n this.#windowLut.setVoiLut(voiLut);\n }\n\n // return\n return this.#windowLut;\n }\n\n /**\n * Get the window presets.\n *\n * @returns {object} The window presets.\n */\n getWindowPresets() {\n return this.#windowPresets;\n }\n\n /**\n * Get the window presets names.\n *\n * @returns {string[]} The list of window presets names.\n */\n getWindowPresetsNames() {\n return Object.keys(this.#windowPresets);\n }\n\n /**\n * Set the window presets.\n *\n * @param {object} presets The window presets.\n */\n setWindowPresets(presets) {\n this.#windowPresets = presets;\n }\n\n /**\n * Add window presets to the existing ones.\n *\n * @param {object} presets The window presets.\n */\n addWindowPresets(presets) {\n const keys = Object.keys(presets);\n let key = null;\n for (let i = 0; i < keys.length; ++i) {\n key = keys[i];\n if (typeof this.#windowPresets[key] !== 'undefined') {\n if (typeof this.#windowPresets[key].perslice !== 'undefined' &&\n this.#windowPresets[key].perslice === true) {\n throw new Error('Cannot add perslice preset');\n } else {\n // update existing\n this.#windowPresets[key] = presets[key];\n }\n } else {\n // add new\n this.#windowPresets[key] = presets[key];\n // fire event\n /**\n * Window/level add preset event.\n *\n * @event View#wlpresetadd\n * @type {object}\n * @property {string} name The name of the preset.\n */\n this.#fireEvent({\n type: 'wlpresetadd',\n name: key\n });\n }\n }\n }\n\n /**\n * Get the current window level preset name.\n *\n * @returns {string} The preset name.\n */\n getCurrentWindowPresetName() {\n return this.#currentPresetName;\n }\n\n /**\n * Get the colour map of the image.\n *\n * @returns {string} The colour map name.\n */\n getColourMap() {\n return this.#colourMapName;\n }\n\n /**\n * Get the colour map object.\n *\n * @returns {ColourMap} The colour map.\n */\n #getColourMapLut() {\n return luts[this.#colourMapName];\n }\n\n /**\n * Set the colour map of the image.\n *\n * @param {string} name The colour map name.\n * @fires View#colourmapchange\n */\n setColourMap(name) {\n // check if we have it\n if (!luts[name]) {\n throw new Error('Unknown colour map: \\'' + name + '\\'');\n }\n\n this.#colourMapName = name;\n\n /**\n * Color change event.\n *\n * @event View#colourmapchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'colourmapchange',\n value: [name]\n });\n }\n\n /**\n * Get the current position.\n *\n * @returns {Point} The current position.\n */\n getCurrentPosition() {\n return this.#currentPosition;\n }\n\n /**\n * Get the current index.\n *\n * @returns {Index} The current index.\n */\n getCurrentIndex() {\n const position = this.getCurrentPosition();\n if (!position) {\n return null;\n }\n const geometry = this.getImage().getGeometry();\n return geometry.worldToIndex(position);\n }\n\n /**\n * Get the SOP image UID of the current image.\n *\n * @returns {string} The UID.\n */\n getCurrentImageUid() {\n return this.#image.getImageUid(this.getCurrentIndex());\n }\n\n /**\n * Get the image origin for a image UID.\n *\n * @param {string} uid The UID.\n * @returns {Index|undefined} The origin index.\n */\n getOriginIndexForImageUid(uid) {\n let index;\n const geometry = this.getImage().getGeometry();\n const origin = this.#image.getOriginForImageUid(uid);\n if (typeof origin !== 'undefined') {\n const point = new Point([origin.getX(), origin.getY(), origin.getZ()]);\n index = geometry.worldToIndex(point);\n }\n return index;\n }\n\n /**\n * Check if the current position (default) or\n * the provided position is in bounds.\n *\n * @param {Point} [position] Optional position.\n * @returns {boolean} True is the position is in bounds.\n */\n isPositionInBounds(position) {\n if (typeof position === 'undefined') {\n position = this.#currentPosition;\n }\n const geometry = this.#image.getGeometry();\n const index = geometry.worldToIndex(position);\n const dirs = [this.getScrollIndex()];\n if (index.length() === 4) {\n dirs.push(3);\n }\n return geometry.isIndexInBounds(index, dirs);\n }\n\n /**\n * Get the first origin or at a given position.\n *\n * @param {Point} [position] Optional position.\n * @returns {Point3D} The origin.\n */\n getOrigin(position) {\n const geometry = this.#image.getGeometry();\n let originIndex = 0;\n if (typeof position !== 'undefined') {\n const index = geometry.worldToIndex(position);\n // index is reoriented, 2 is scroll index\n originIndex = index.get(2);\n }\n return geometry.getOrigins()[originIndex];\n }\n\n /**\n * Set the current position.\n *\n * @param {Point} position The new position.\n * @param {boolean} silent Flag to fire event or not.\n * @returns {boolean} False if not in bounds.\n * @fires View#positionchange\n */\n setCurrentPosition(position, silent) {\n // send invalid event if not in bounds\n const geometry = this.#image.getGeometry();\n const index = geometry.worldToIndex(position);\n const dirs = [this.getScrollIndex()];\n if (index.length() === 4) {\n dirs.push(3);\n }\n if (!geometry.isIndexInBounds(index, dirs)) {\n if (!silent) {\n this.#currentPosition = position;\n // fire event with valid: false\n this.#fireEvent({\n type: 'positionchange',\n value: [\n index.getValues(),\n position.getValues(),\n ],\n valid: false\n });\n }\n return false;\n }\n return this.setCurrentIndex(index, silent);\n }\n\n /**\n * Set the current index.\n *\n * @param {Index} index The new index.\n * @param {boolean} [silent] Flag to fire event or not.\n * @returns {boolean} False if not in bounds.\n * @fires View#positionchange\n */\n setCurrentIndex(index, silent) {\n // check input\n if (typeof silent === 'undefined') {\n silent = false;\n }\n\n const geometry = this.#image.getGeometry();\n const position = geometry.indexToWorld(index);\n\n // check if possible\n const dirs = [this.getScrollIndex()];\n if (index.length() === 4) {\n dirs.push(3);\n }\n if (!geometry.isIndexInBounds(index, dirs)) {\n if (!silent) {\n this.#currentPosition = position;\n // fire event with valid: false\n this.#fireEvent({\n type: 'positionchange',\n value: [\n index.getValues(),\n position.getValues(),\n ],\n valid: false\n });\n }\n\n // do no send invalid positionchange event: avoid empty repaint\n return false;\n }\n\n // calculate diff dims before updating internal\n let diffDims = null;\n let currentIndex = null;\n if (this.getCurrentPosition()) {\n currentIndex = this.getCurrentIndex();\n }\n if (currentIndex) {\n if (currentIndex.canCompare(index)) {\n diffDims = currentIndex.compare(index);\n } else {\n diffDims = [];\n const minLen = Math.min(currentIndex.length(), index.length());\n for (let i = 0; i < minLen; ++i) {\n if (currentIndex.get(i) !== index.get(i)) {\n diffDims.push(i);\n }\n }\n const maxLen = Math.max(currentIndex.length(), index.length());\n for (let j = minLen; j < maxLen; ++j) {\n diffDims.push(j);\n }\n }\n } else {\n diffDims = [];\n for (let k = 0; k < index.length(); ++k) {\n diffDims.push(k);\n }\n }\n\n // assign\n this.#currentPosition = position;\n\n if (!silent) {\n /**\n * Position change event.\n *\n * @event View#positionchange\n * @type {object}\n * @property {Array} value The changed value as [index, pixelValue].\n * @property {number[]} diffDims An array of modified indices.\n */\n const posEvent = {\n type: 'positionchange',\n value: [\n index.getValues(),\n position.getValues(),\n ],\n diffDims: diffDims,\n data: {\n imageUid: this.#image.getImageUid(index)\n }\n };\n\n // add value if possible\n if (this.#image.canQuantify()) {\n const pixValue = this.#image.getRescaledValueAtIndex(index);\n posEvent.value.push(pixValue);\n }\n\n // fire\n this.#fireEvent(posEvent);\n }\n\n // all good\n return true;\n }\n\n /**\n * Set the view window/level.\n *\n * @param {WindowLevel} wl The window and level.\n * @param {string} [name] Associated preset name, defaults to 'manual'.\n * Warning: uses the latest set rescale LUT or the default linear one.\n * @param {boolean} [silent] Flag to launch events with skipGenerate.\n * @fires View#wlchange\n */\n setWindowLevel(wl, name, silent) {\n // check input\n if (typeof name === 'undefined') {\n name = 'manual';\n }\n if (name !== 'manual' &&\n typeof this.#windowPresets[name] === 'undefined') {\n throw new Error('Unknown window level preset: \\'' + name + '\\'');\n }\n if (typeof silent === 'undefined') {\n silent = false;\n }\n\n // check if new wl\n const isNewWl = !wl.equals(this.#currentWl);\n // check if new name\n const isNewName = this.#currentPresetName !== name;\n\n // compare to previous if present\n if (isNewWl || isNewName) {\n // assign\n this.#currentWl = wl;\n this.#currentPresetName = name;\n\n // update manual\n if (name === 'manual') {\n if (typeof this.#windowPresets[name] !== 'undefined') {\n this.#windowPresets[name].wl[0] = wl;\n } else {\n // add if not present\n this.addWindowPresets({\n manual: {\n wl: [wl],\n name: 'manual'\n }\n });\n }\n }\n\n /**\n * Window/level change event.\n *\n * @event View#wlchange\n * @type {object}\n * @property {Array} value The changed value.\n * @property {number} wc The new window center value.\n * @property {number} ww The new window wdth value.\n * @property {boolean} skipGenerate Flag to skip view generation.\n */\n this.#fireEvent({\n type: 'wlchange',\n value: [wl.center, wl.width, name],\n wc: wl.center,\n ww: wl.width,\n skipGenerate: silent\n });\n }\n }\n\n /**\n * Get the window/level.\n *\n * @returns {WindowLevel} The window and level.\n */\n getWindowLevel() {\n // same as #currentWl...\n const windowLut = this.#getCurrentWindowLut();\n return windowLut.getVoiLut().getWindowLevel();\n }\n\n /**\n * Set the window level to the preset with the input name.\n *\n * @param {string} name The name of the preset to activate.\n * @param {boolean} [silent] Flag to launch events with skipGenerate.\n */\n setWindowLevelPreset(name, silent) {\n const preset = this.getWindowPresets()[name];\n if (typeof preset === 'undefined') {\n throw new Error('Unknown window level preset: \\'' + name + '\\'');\n }\n // special min/max\n if (name === 'minmax' && typeof preset.wl === 'undefined') {\n preset.wl = [this.getWindowLevelMinMax()];\n }\n // default to first\n let wl = preset.wl[0];\n // check if 'perslice' case\n if (typeof preset.perslice !== 'undefined' &&\n preset.perslice === true) {\n const offset = this.#image.getSecondaryOffset(this.getCurrentIndex());\n wl = preset.wl[offset];\n }\n // set w/l\n this.setWindowLevel(wl, name, silent);\n }\n\n /**\n * Set the window level to the preset with the input id.\n *\n * @param {number} id The id of the preset to activate.\n * @param {boolean} [silent] Flag to launch events with skipGenerate.\n */\n setWindowLevelPresetById(id, silent) {\n const keys = Object.keys(this.getWindowPresets());\n this.setWindowLevelPreset(keys[id], silent);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Get the image window/level that covers the full data range.\n * Warning: uses the latest set rescale LUT or the default linear one.\n *\n * @returns {WindowLevel} A min/max window level.\n */\n getWindowLevelMinMax() {\n const range = this.getImage().getRescaledDataRange();\n const min = range.min;\n const max = range.max;\n let width = max - min;\n // full black / white images, defaults to 1.\n if (width < 1) {\n logger.warn('Zero or negative window width, defaulting to one.');\n width = 1;\n }\n const center = min + width / 2;\n return new WindowLevel(center, width);\n }\n\n /**\n * Set the image window/level to cover the full data range.\n * Warning: uses the latest set rescale LUT or the default linear one.\n */\n setWindowLevelMinMax() {\n // calculate center and width\n const wl = this.getWindowLevelMinMax();\n // set window level\n this.setWindowLevel(wl, 'minmax');\n }\n\n /**\n * Generate display image data to be given to a canvas.\n *\n * @param {ImageData} data The iamge data to fill in.\n * @param {Index} index Optional index at which to generate,\n * otherwise generates at current index.\n */\n generateImageData(data, index) {\n // check index\n if (typeof index === 'undefined') {\n if (!this.getCurrentIndex()) {\n this.setInitialIndex();\n }\n index = this.getCurrentIndex();\n }\n\n const image = this.getImage();\n const isRescaled = !image.isConstantRSI();\n const iterator = getSliceIterator(\n image, index, isRescaled, this.getOrientation());\n\n const photoInterpretation = image.getPhotometricInterpretation();\n switch (photoInterpretation) {\n case 'MONOCHROME1':\n case 'MONOCHROME2':\n generateImageDataMonochrome(\n data,\n iterator,\n this.getAlphaFunction(),\n this.#getCurrentWindowLut(),\n this.#getColourMapLut()\n );\n break;\n\n case 'PALETTE COLOR':\n generateImageDataPaletteColor(\n data,\n iterator,\n this.getAlphaFunction(),\n this.#getColourMapLut(),\n image.getMeta().BitsStored === 16\n );\n break;\n\n case 'RGB':\n generateImageDataRgb(\n data,\n iterator,\n this.getAlphaFunction()\n );\n break;\n\n case 'YBR_FULL':\n generateImageDataYbrFull(\n data,\n iterator,\n this.getAlphaFunction()\n );\n break;\n\n default:\n throw new Error(\n 'Unsupported photometric interpretation: ' + photoInterpretation);\n }\n }\n\n /**\n * Get the scroll dimension index.\n *\n * @returns {number} The index.\n */\n getScrollIndex() {\n let index = null;\n const orientation = this.getOrientation();\n if (typeof orientation !== 'undefined') {\n index = orientation.getThirdColMajorDirection();\n } else {\n index = 2;\n }\n return index;\n }\n\n} // class View\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {WindowLut} from './windowLut';\nimport {ColourMap} from './luts';\n/* eslint-enable no-unused-vars */\n\n/**\n * Generate image data for 'MONOCHROME*' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n * @param {WindowLut} windowLut The window/level LUT.\n * @param {ColourMap} colourMap The colour map.\n */\nexport function generateImageDataMonochrome(\n array,\n iterator,\n alphaFunc,\n windowLut,\n colourMap) {\n let index = 0;\n let pxValue = 0;\n let ival = iterator.next();\n while (!ival.done) {\n // pixel value\n pxValue = windowLut.getValue(ival.value);\n // store data\n array.data[index] = colourMap.red[pxValue];\n array.data[index + 1] = colourMap.green[pxValue];\n array.data[index + 2] = colourMap.blue[pxValue];\n array.data[index + 3] = alphaFunc(ival.value, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","import {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ColourMap} from './luts';\n/* eslint-enable no-unused-vars */\n\n/**\n * Generate image data for 'PALETTE COLOR' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n * @param {ColourMap} colourMap The colour map.\n * @param {boolean} is16BitsStored Flag to know if the data is 16bits.\n */\nexport function generateImageDataPaletteColor(\n array,\n iterator,\n alphaFunc,\n colourMap,\n is16BitsStored) {\n // right shift 8\n const to8 = function (value) {\n return value >> 8;\n };\n\n if (is16BitsStored) {\n logger.info('Scaling 16bits data to 8bits.');\n }\n\n let index = 0;\n let pxValue = 0;\n let ival = iterator.next();\n while (!ival.done) {\n // pixel value\n pxValue = ival.value;\n // store data\n // TODO check pxValue fits in lut\n if (is16BitsStored) {\n array.data[index] = to8(colourMap.red[pxValue]);\n array.data[index + 1] = to8(colourMap.green[pxValue]);\n array.data[index + 2] = to8(colourMap.blue[pxValue]);\n } else {\n array.data[index] = colourMap.red[pxValue];\n array.data[index + 1] = colourMap.green[pxValue];\n array.data[index + 2] = colourMap.blue[pxValue];\n }\n array.data[index + 3] = alphaFunc(pxValue, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","/**\n * Generate image data for 'RGB' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n */\nexport function generateImageDataRgb(\n array,\n iterator,\n alphaFunc) {\n let index = 0;\n let ival = iterator.next();\n while (!ival.done) {\n // store data\n array.data[index] = ival.value[0];\n array.data[index + 1] = ival.value[1];\n array.data[index + 2] = ival.value[2];\n array.data[index + 3] = alphaFunc(ival.value, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","import {ybrToRgb} from '../utils/colour';\n\n/**\n * Generate image data for 'YBR_FULL' photometric interpretation.\n *\n * @param {ImageData} array The array to store the outut data.\n * @param {object} iterator Position iterator.\n * @param {Function} alphaFunc The alpha function.\n */\nexport function generateImageDataYbrFull(\n array,\n iterator,\n alphaFunc) {\n let index = 0;\n let rgb = null;\n let ival = iterator.next();\n while (!ival.done) {\n // convert ybr to rgb\n rgb = ybrToRgb(ival.value[0], ival.value[1], ival.value[2]);\n // store data\n array.data[index] = rgb.r;\n array.data[index + 1] = rgb.g;\n array.data[index + 2] = rgb.b;\n array.data[index + 3] = alphaFunc(ival.value, ival.index);\n // increment\n index += 4;\n ival = iterator.next();\n }\n}\n","import {Vector3D} from '../math/vector';\nimport {Point3D} from '../math/point';\nimport {getTargetOrientation} from '../gui/layerGroup';\nimport {getOrientedArray3D, getDeOrientedArray3D} from './geometry';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\nimport {Spacing} from './spacing';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Plane geometry helper.\n */\nexport class PlaneHelper {\n\n /**\n * The associated spacing.\n *\n * @type {Spacing}\n */\n #spacing;\n\n /**\n * The image orientation.\n *\n * @type {Matrix33}\n */\n #imageOrientation;\n\n /**\n * The viewe orientation.\n *\n * @type {Matrix33}\n */\n #viewOrientation;\n\n /**\n * The target orientation.\n *\n * @type {Matrix33}\n */\n #targetOrientation;\n\n /**\n * @param {Spacing} spacing The spacing.\n * @param {Matrix33} imageOrientation The image oientation.\n * @param {Matrix33} viewOrientation The view orientation.\n */\n constructor(spacing, imageOrientation, viewOrientation) {\n this.#spacing = spacing;\n this.#imageOrientation = imageOrientation;\n this.#viewOrientation = viewOrientation;\n\n this.#targetOrientation = getTargetOrientation(\n imageOrientation, viewOrientation);\n }\n\n /**\n * Get a 3D offset from a plane one.\n *\n * @param {Scalar2D} offset2D The plane offset as {x,y}.\n * @returns {Vector3D} The 3D world offset.\n */\n getOffset3DFromPlaneOffset(offset2D) {\n // make 3D\n const planeOffset = new Vector3D(\n offset2D.x, offset2D.y, 0);\n // de-orient\n const pixelOffset = this.getTargetDeOrientedVector3D(planeOffset);\n // ~indexToWorld\n return new Vector3D(\n pixelOffset.getX() * this.#spacing.get(0),\n pixelOffset.getY() * this.#spacing.get(1),\n pixelOffset.getZ() * this.#spacing.get(2));\n }\n\n /**\n * Get a plane offset from a 3D one.\n *\n * @param {Scalar3D} offset3D The 3D offset as {x,y,z}.\n * @returns {Scalar2D} The plane offset as {x,y}.\n */\n getPlaneOffsetFromOffset3D(offset3D) {\n // ~worldToIndex\n const pixelOffset = new Vector3D(\n offset3D.x / this.#spacing.get(0),\n offset3D.y / this.#spacing.get(1),\n offset3D.z / this.#spacing.get(2));\n // orient\n const planeOffset = this.getTargetOrientedVector3D(pixelOffset);\n // make 2D\n return {\n x: planeOffset.getX(),\n y: planeOffset.getY()\n };\n }\n\n /**\n * Orient an input vector from real to target space.\n *\n * @param {Vector3D} vector The input vector.\n * @returns {Vector3D} The oriented vector.\n */\n getTargetOrientedVector3D(vector) {\n let planeVector = vector;\n if (typeof this.#targetOrientation !== 'undefined') {\n planeVector =\n this.#targetOrientation.getInverse().multiplyVector3D(vector);\n }\n return planeVector;\n }\n\n /**\n * De-orient an input vector from target to real space.\n *\n * @param {Vector3D} planeVector The input vector.\n * @returns {Vector3D} The de-orienteded vector.\n */\n getTargetDeOrientedVector3D(planeVector) {\n let vector = planeVector;\n if (typeof this.#targetOrientation !== 'undefined') {\n vector = this.#targetOrientation.multiplyVector3D(planeVector);\n }\n return vector;\n }\n\n /**\n * De-orient an input point from target to real space.\n *\n * @param {Point3D} planePoint The input point.\n * @returns {Point3D} The de-orienteded point.\n */\n getTargetDeOrientedPoint3D(planePoint) {\n let point = planePoint;\n if (typeof this.#targetOrientation !== 'undefined') {\n point = this.#targetOrientation.multiplyPoint3D(planePoint);\n }\n return point;\n }\n\n /**\n * Orient an input vector from target to image space.\n *\n * @param {Vector3D} planeVector The input vector.\n * @returns {Vector3D} The orienteded vector.\n */\n getImageOrientedVector3D(planeVector) {\n let vector = planeVector;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image oriented => view de-oriented\n const values = getDeOrientedArray3D(\n [\n planeVector.getX(),\n planeVector.getY(),\n planeVector.getZ()\n ],\n this.#viewOrientation);\n vector = new Vector3D(\n values[0],\n values[1],\n values[2]\n );\n }\n return vector;\n }\n\n /**\n * Orient an input point from target to image space.\n *\n * @param {Point3D} planePoint The input vector.\n * @returns {Point3D} The orienteded vector.\n */\n getImageOrientedPoint3D(planePoint) {\n let point = planePoint;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image oriented => view de-oriented\n const values = getDeOrientedArray3D(\n [\n planePoint.getX(),\n planePoint.getY(),\n planePoint.getZ()\n ],\n this.#viewOrientation);\n point = new Point3D(\n values[0],\n values[1],\n values[2]\n );\n }\n return point;\n }\n\n /**\n * De-orient an input vector from image to target space.\n *\n * @param {Vector3D} vector The input vector.\n * @returns {Vector3D} The de-orienteded vector.\n */\n getImageDeOrientedVector3D(vector) {\n let planeVector = vector;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image de-oriented => view oriented\n const orientedValues = getOrientedArray3D(\n [\n vector.getX(),\n vector.getY(),\n vector.getZ()\n ],\n this.#viewOrientation);\n planeVector = new Vector3D(\n orientedValues[0],\n orientedValues[1],\n orientedValues[2]\n );\n }\n return planeVector;\n }\n\n /**\n * De-orient an input point from image to target space.\n *\n * @param {Point3D} point The input point.\n * @returns {Point3D} The de-orienteded point.\n */\n getImageDeOrientedPoint3D(point) {\n let planePoint = point;\n if (typeof this.#viewOrientation !== 'undefined') {\n // image de-oriented => view oriented\n const orientedValues = getOrientedArray3D(\n [\n point.getX(),\n point.getY(),\n point.getZ()\n ],\n this.#viewOrientation);\n planePoint = new Point3D(\n orientedValues[0],\n orientedValues[1],\n orientedValues[2]\n );\n }\n return planePoint;\n }\n\n /**\n * Reorder values to follow target orientation.\n *\n * @param {Scalar3D} values Values as {x,y,z}.\n * @returns {Scalar3D} Reoriented values as {x,y,z}.\n */\n getTargetOrientedPositiveXYZ(values) {\n const orientedValues = getOrientedArray3D(\n [\n values.x,\n values.y,\n values.z\n ],\n this.#targetOrientation);\n return {\n x: orientedValues[0],\n y: orientedValues[1],\n z: orientedValues[2]\n };\n }\n\n /**\n * Get the (view) scroll dimension index.\n *\n * @returns {number} The index.\n */\n getScrollIndex() {\n let index = null;\n if (typeof this.#viewOrientation !== 'undefined') {\n index = this.#viewOrientation.getThirdColMajorDirection();\n } else {\n index = 2;\n }\n return index;\n }\n\n /**\n * Get the native (image) scroll dimension index.\n *\n * @returns {number} The index.\n */\n getNativeScrollIndex() {\n let index = null;\n if (typeof this.#imageOrientation !== 'undefined') {\n index = this.#imageOrientation.getThirdColMajorDirection();\n } else {\n index = 2;\n }\n return index;\n }\n\n} // class PlaneHelper\n","import {getIdentityMat33} from '../math/matrix';\nimport {getCoronalMat33} from '../math/orientation';\nimport {Index} from '../math/index';\nimport {Point} from '../math/point';\nimport {Vector3D} from '../math/vector';\nimport {viewEventNames} from '../image/view';\nimport {ListenerHandler} from '../utils/listen';\nimport {logger} from '../utils/logger';\nimport {precisionRound} from '../utils/string';\nimport {ViewLayer} from './viewLayer';\nimport {DrawLayer} from './drawLayer';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Matrix33} from '../math/matrix';\nimport {Point2D, Point3D} from '../math/point';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get the layer div id.\n *\n * @param {string} groupDivId The layer group div id.\n * @param {number} layerId The lyaer id.\n * @returns {string} A string id.\n */\nexport function getLayerDivId(groupDivId, layerId) {\n return groupDivId + '-layer-' + layerId;\n}\n\n/**\n * Get the layer details from a div id.\n *\n * @param {string} idString The layer div id.\n * @returns {object} The layer details as {groupDivId, layerId}.\n */\nexport function getLayerDetailsFromLayerDivId(idString) {\n const split = idString.split('-layer-');\n if (split.length !== 2) {\n logger.warn('Not the expected layer div id format...');\n }\n return {\n groupDivId: split[0],\n layerId: split[1]\n };\n}\n\n/**\n * Get the layer details from a mouse event.\n *\n * @param {object} event The event to get the layer div id from. Expecting\n * an event origininating from a canvas inside a layer HTML div\n * with the 'layer' class and id generated with `getLayerDivId`.\n * @returns {object} The layer details as {groupDivId, layerId}.\n */\nexport function getLayerDetailsFromEvent(event) {\n let res = null;\n // get the closest element from the event target and with the 'layer' class\n const layerDiv = event.target.closest('.layer');\n if (layerDiv && typeof layerDiv.id !== 'undefined') {\n res = getLayerDetailsFromLayerDivId(layerDiv.id);\n }\n return res;\n}\n\n/**\n * Get the view orientation according to an image and target orientation.\n * The view orientation is used to go from target to image space.\n *\n * @param {Matrix33} imageOrientation The image geometry.\n * @param {Matrix33} targetOrientation The target orientation.\n * @returns {Matrix33} The view orientation.\n */\nexport function getViewOrientation(imageOrientation, targetOrientation) {\n let viewOrientation = getIdentityMat33();\n if (typeof targetOrientation !== 'undefined') {\n // i: image, v: view, t: target, O: orientation, P: point\n // [Img] -- Oi --> [Real] <-- Ot -- [Target]\n // Pi = (Oi)-1 * Ot * Pt = Ov * Pt\n // -> Ov = (Oi)-1 * Ot\n // TODO: asOneAndZeros simplifies but not nice...\n viewOrientation =\n imageOrientation.asOneAndZeros().getInverse().multiply(targetOrientation);\n }\n // TODO: why abs???\n return viewOrientation.getAbs();\n}\n\n/**\n * Get the target orientation according to an image and view orientation.\n * The target orientation is used to go from target to real space.\n *\n * @param {Matrix33} imageOrientation The image geometry.\n * @param {Matrix33} viewOrientation The view orientation.\n * @returns {Matrix33} The target orientation.\n */\nexport function getTargetOrientation(imageOrientation, viewOrientation) {\n // i: image, v: view, t: target, O: orientation, P: point\n // [Img] -- Oi --> [Real] <-- Ot -- [Target]\n // Pi = (Oi)-1 * Ot * Pt = Ov * Pt\n // -> Ot = Oi * Ov\n // note: asOneAndZeros as in getViewOrientation...\n let targetOrientation =\n imageOrientation.asOneAndZeros().multiply(viewOrientation);\n\n // TODO: why abs???\n const simpleImageOrientation = imageOrientation.asOneAndZeros().getAbs();\n if (simpleImageOrientation.equals(getCoronalMat33().getAbs())) {\n targetOrientation = targetOrientation.getAbs();\n }\n\n return targetOrientation;\n}\n\n/**\n * Get a scaled offset to adapt to new scale and such as the input center\n * stays at the same position.\n *\n * @param {Scalar2D} offset The previous offset as {x,y}.\n * @param {Scalar2D} scale The previous scale as {x,y}.\n * @param {Scalar2D} newScale The new scale as {x,y}.\n * @param {Scalar2D} center The scale center as {x,y}.\n * @returns {Scalar2D} The scaled offset as {x,y}.\n */\nexport function getScaledOffset(offset, scale, newScale, center) {\n // worldPoint = indexPoint / scale + offset\n //=> indexPoint = (worldPoint - offset ) * scale\n\n // plane center should stay the same:\n // indexCenter / newScale + newOffset =\n // indexCenter / oldScale + oldOffset\n //=> newOffset = indexCenter / oldScale + oldOffset -\n // indexCenter / newScale\n //=> newOffset = worldCenter - indexCenter / newScale\n const indexCenter = {\n x: (center.x - offset.x) * scale.x,\n y: (center.y - offset.y) * scale.y\n };\n return {\n x: center.x - (indexCenter.x / newScale.x),\n y: center.y - (indexCenter.y / newScale.y)\n };\n}\n\n/**\n * Layer group.\n *\n * - Display position: {x,y},\n * - Plane position: Index (access: get(i)),\n * - (world) Position: Point3D (access: getX, getY, getZ).\n *\n * Display -> World:\n * - planePos = viewLayer.displayToPlanePos(displayPos)\n * -> compensate for layer scale and offset,\n * - pos = viewController.getPositionFromPlanePoint(planePos).\n *\n * World -> Display:\n * - planePos = viewController.getOffset3DFromPlaneOffset(pos)\n * no need yet for a planePos to displayPos...\n */\nexport class LayerGroup {\n\n /**\n * The container div.\n *\n * @type {HTMLElement}\n */\n #containerDiv;\n\n // jsdoc does not like\n // @type {(ViewLayer|DrawLayer)[]}\n\n /**\n * List of layers.\n *\n * @type {Array}\n */\n #layers = [];\n\n /**\n * The layer scale as {x,y,z}.\n *\n * @type {Scalar3D}\n */\n #scale = {x: 1, y: 1, z: 1};\n\n /**\n * The base scale as {x,y,z}: all posterior scale will be on top of this one.\n *\n * @type {Scalar3D}\n */\n #baseScale = {x: 1, y: 1, z: 1};\n\n /**\n * The layer offset as {x,y,z}.\n *\n * @type {Scalar3D}\n */\n #offset = {x: 0, y: 0, z: 0};\n\n /**\n * Active view layer index.\n *\n * @type {number}\n */\n #activeViewLayerIndex = undefined;\n\n /**\n * Active draw layer index.\n *\n * @type {number}\n */\n #activeDrawLayerIndex = undefined;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Flag to activate crosshair or not.\n *\n * @type {boolean}\n */\n #showCrosshair = false;\n\n /**\n * Crosshair HTML elements.\n *\n * @type {HTMLElement[]}\n */\n #crosshairHtmlElements = [];\n\n /**\n * Tooltip HTML element.\n *\n * @type {HTMLElement}\n */\n #tooltipHtmlElement;\n\n /**\n * The current position used for the crosshair.\n *\n * @type {Point}\n */\n #currentPosition;\n\n /**\n * Image smoothing flag.\n *\n * @type {boolean}\n */\n #imageSmoothing = false;\n\n /**\n * @param {HTMLElement} containerDiv The associated HTML div.\n */\n constructor(containerDiv) {\n this.#containerDiv = containerDiv;\n }\n\n /**\n * Get the showCrosshair flag.\n *\n * @returns {boolean} True to display the crosshair.\n */\n getShowCrosshair() {\n return this.#showCrosshair;\n }\n\n /**\n * Set the showCrosshair flag.\n *\n * @param {boolean} flag True to display the crosshair.\n */\n setShowCrosshair(flag) {\n this.#showCrosshair = flag;\n if (flag) {\n // listen to offset and zoom change\n this.addEventListener('offsetchange', this.#updateCrosshairOnChange);\n this.addEventListener('zoomchange', this.#updateCrosshairOnChange);\n // show crosshair div\n this.#showCrosshairDiv();\n } else {\n // listen to offset and zoom change\n this.removeEventListener('offsetchange', this.#updateCrosshairOnChange);\n this.removeEventListener('zoomchange', this.#updateCrosshairOnChange);\n // remove crosshair div\n this.#removeCrosshairDiv();\n }\n }\n\n /**\n * Set the imageSmoothing flag value.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#imageSmoothing = flag;\n // set for existing layers\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n layer.setImageSmoothing(flag);\n }\n }\n }\n\n /**\n * Update crosshair on offset or zoom change.\n *\n * @param {object} _event The change event.\n */\n #updateCrosshairOnChange = (_event) => {\n this.#showCrosshairDiv();\n };\n\n /**\n * Get the Id of the container div.\n *\n * @returns {string} The id of the div.\n */\n getDivId() {\n return this.#containerDiv.id;\n }\n\n /**\n * Get the layer scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getScale() {\n return this.#scale;\n }\n\n /**\n * Get the base scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getBaseScale() {\n return this.#baseScale;\n }\n\n /**\n * Get the added scale: the scale added to the base scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getAddedScale() {\n return {\n x: this.#scale.x / this.#baseScale.x,\n y: this.#scale.y / this.#baseScale.y,\n z: this.#scale.z / this.#baseScale.z\n };\n }\n\n /**\n * Get the layer offset.\n *\n * @returns {Scalar3D} The offset as {x,y,z}.\n */\n getOffset() {\n return this.#offset;\n }\n\n /**\n * Get the number of layers handled by this class.\n *\n * @returns {number} The number of layers.\n */\n getNumberOfLayers() {\n let count = 0;\n this.#layers.forEach(item => {\n if (typeof item !== 'undefined') {\n count++;\n }\n });\n return count;\n }\n\n /**\n * Check if this layerGroup contains a layer with the input id.\n *\n * @param {string} id The layer id to look for.\n * @returns {boolean} True if this group contains\n * a layer with the input id.\n */\n includes(id) {\n if (typeof id === 'undefined') {\n return false;\n }\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined' &&\n layer.getId() === id) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Get the number of view layers handled by this class.\n *\n * @returns {number} The number of layers.\n */\n getNumberOfViewLayers() {\n let count = 0;\n this.#layers.forEach(item => {\n if (typeof item !== 'undefined' &&\n item instanceof ViewLayer) {\n count++;\n }\n });\n return count;\n }\n\n /**\n * Get the active image layer.\n *\n * @returns {ViewLayer|undefined} The layer.\n */\n getActiveViewLayer() {\n let layer;\n if (typeof this.#activeViewLayerIndex !== 'undefined') {\n const tmpLayer = this.#layers[this.#activeViewLayerIndex];\n if (tmpLayer instanceof ViewLayer) {\n layer = tmpLayer;\n }\n }\n return layer;\n }\n\n /**\n * Get the base view layer.\n *\n * @returns {ViewLayer|undefined} The layer.\n */\n getBaseViewLayer() {\n let layer;\n if (this.#layers[0] instanceof ViewLayer) {\n layer = this.#layers[0];\n }\n return layer;\n }\n\n /**\n * Get the view layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {ViewLayer[]} The layers.\n */\n getViewLayersByDataId(dataId) {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer &&\n layer.getDataId() === dataId) {\n res.push(layer);\n }\n }\n return res;\n }\n\n /**\n * Search view layers for equal imae meta data.\n *\n * @param {object} meta The meta data to find.\n * @returns {ViewLayer[]} The list of view layers that contain matched data.\n */\n searchViewLayers(meta) {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n if (layer.getViewController().equalImageMeta(meta)) {\n res.push(layer);\n }\n }\n }\n return res;\n }\n\n /**\n * Get the view layers data indices.\n *\n * @returns {string[]} The list of indices.\n */\n getViewDataIndices() {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n res.push(layer.getDataId());\n }\n }\n return res;\n }\n\n /**\n * Get the active draw layer.\n *\n * @returns {DrawLayer|undefined} The layer.\n */\n getActiveDrawLayer() {\n let layer;\n if (typeof this.#activeDrawLayerIndex !== 'undefined') {\n const tmpLayer = this.#layers[this.#activeDrawLayerIndex];\n if (tmpLayer instanceof DrawLayer) {\n layer = tmpLayer;\n }\n }\n return layer;\n }\n\n /**\n * Get the draw layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {DrawLayer[]} The layers.\n */\n getDrawLayersByDataId(dataId) {\n const res = [];\n for (const layer of this.#layers) {\n if (layer instanceof DrawLayer &&\n layer.getDataId() === dataId) {\n res.push(layer);\n }\n }\n return res;\n }\n\n /**\n * Set the active view layer.\n *\n * @param {number} index The index of the layer to set as active.\n */\n setActiveViewLayer(index) {\n if (this.#layers[index] instanceof ViewLayer) {\n this.#activeViewLayerIndex = index;\n /**\n * Active view layer change event.\n *\n * @event LayerGroup#activeviewlayerchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'activelayerchange',\n value: [this.#layers[index]]\n });\n } else {\n logger.warn('No view layer to set as active with index: ' +\n index);\n }\n }\n\n /**\n * Set the active view layer with a data id.\n *\n * @param {string} dataId The data id.\n */\n setActiveViewLayerByDataId(dataId) {\n let index;\n for (let i = 0; i < this.#layers.length; ++i) {\n if (this.#layers[i] instanceof ViewLayer &&\n this.#layers[i].getDataId() === dataId) {\n // stop at first one\n index = i;\n break;\n }\n }\n if (typeof index !== 'undefined') {\n this.setActiveViewLayer(index);\n } else {\n logger.warn('No view layer to set as active with dataId: ' +\n dataId);\n }\n }\n\n /**\n * Set the active draw layer.\n *\n * @param {number} index The index of the layer to set as active.\n */\n setActiveDrawLayer(index) {\n if (this.#layers[index] instanceof DrawLayer) {\n this.#activeDrawLayerIndex = index;\n this.#fireEvent({\n type: 'activelayerchange',\n value: [this.#layers[index]]\n });\n } else {\n logger.warn('No draw layer to set as active with index: ' +\n index);\n }\n }\n\n /**\n * Set the active draw layer with a data id.\n *\n * @param {string} dataId The data id.\n */\n setActiveDrawLayerByDataId(dataId) {\n let index;\n for (let i = 0; i < this.#layers.length; ++i) {\n if (this.#layers[i] instanceof DrawLayer &&\n this.#layers[i].getDataId() === dataId) {\n // stop at first one\n index = i;\n break;\n }\n }\n if (typeof index !== 'undefined') {\n this.setActiveDrawLayer(index);\n } else {\n logger.warn('No draw layer to set as active with dataId: ' +\n dataId);\n }\n }\n\n /**\n * Add a view layer.\n *\n * The new layer will be marked as the active view layer.\n *\n * @returns {ViewLayer} The created layer.\n */\n addViewLayer() {\n // layer index\n const viewLayerIndex = this.#layers.length;\n // create div\n const div = this.#getNextLayerDiv();\n // prepend to container\n this.#containerDiv.append(div);\n // view layer\n const layer = new ViewLayer(div);\n layer.setImageSmoothing(this.#imageSmoothing);\n // add layer\n this.#layers.push(layer);\n // mark it as active\n this.setActiveViewLayer(viewLayerIndex);\n // bind view layer events\n this.#bindViewLayer(layer);\n // return\n return layer;\n }\n\n /**\n * Add a draw layer.\n *\n * The new layer will be marked as the active draw layer.\n *\n * @returns {DrawLayer} The created layer.\n */\n addDrawLayer() {\n // store active index\n this.#activeDrawLayerIndex = this.#layers.length;\n // create div\n const div = this.#getNextLayerDiv();\n // prepend to container\n this.#containerDiv.append(div);\n // draw layer\n const layer = new DrawLayer(div);\n // add layer\n this.#layers.push(layer);\n // bind draw layer events\n this.#bindDrawLayer(layer);\n // return\n return layer;\n }\n\n /**\n * Bind view layer events to this.\n *\n * @param {ViewLayer} viewLayer The view layer to bind.\n */\n #bindViewLayer(viewLayer) {\n // listen to position change to update other group layers\n viewLayer.addEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n // propagate view viewLayer-layer events\n for (const eventName of viewEventNames) {\n viewLayer.addEventListener(eventName, this.#fireEvent);\n }\n // propagate viewLayer events\n viewLayer.addEventListener('renderstart', this.#fireEvent);\n viewLayer.addEventListener('renderend', this.#fireEvent);\n }\n\n /**\n * Un-bind a view layer events to this.\n *\n * @param {ViewLayer} viewLayer The view layer to unbind.\n */\n #unbindViewLayer(viewLayer) {\n // stop listening to position change to update other group layers\n viewLayer.removeEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n // stop propagating view viewLayer-layer events\n for (const eventName of viewEventNames) {\n viewLayer.removeEventListener(eventName, this.#fireEvent);\n }\n // stop propagating viewLayer events\n viewLayer.removeEventListener('renderstart', this.#fireEvent);\n viewLayer.removeEventListener('renderend', this.#fireEvent);\n\n // stop view layer - image binding\n // (binding is done in layer.setView)\n viewLayer.unbindImage();\n }\n\n /**\n * Bind draw layer events to this.\n *\n * @param {DrawLayer} drawLayer The draw layer to bind.\n */\n #bindDrawLayer(drawLayer) {\n // propagate drawLayer events\n drawLayer.addEventListener('drawcreate', this.#fireEvent);\n drawLayer.addEventListener('drawdelete', this.#fireEvent);\n }\n\n /**\n * Un-bind a draw layer events to this.\n *\n * @param {DrawLayer} drawLayer The draw layer to unbind.\n */\n #unbindDrawLayer(drawLayer) {\n // propagate drawLayer events\n drawLayer.removeEventListener('drawcreate', this.#fireEvent);\n drawLayer.removeEventListener('drawdelete', this.#fireEvent);\n }\n\n /**\n * Get the next layer DOM div.\n *\n * @returns {HTMLDivElement} A DOM div.\n */\n #getNextLayerDiv() {\n const div = document.createElement('div');\n div.id = getLayerDivId(this.getDivId(), this.#layers.length);\n div.className = 'layer';\n div.style.pointerEvents = 'none';\n return div;\n }\n\n /**\n * Empty the layer list.\n */\n empty() {\n this.#layers = [];\n // reset active indices\n this.#activeViewLayerIndex = undefined;\n this.#activeDrawLayerIndex = undefined;\n // remove possible crosshair\n this.#removeCrosshairDiv();\n // clean container div\n const previous = this.#containerDiv.getElementsByClassName('layer');\n if (previous) {\n while (previous.length > 0) {\n previous[0].remove();\n }\n }\n }\n\n /**\n * Remove all layers for a specific data.\n *\n * @param {string} dataId The data to remove its layers.\n */\n removeLayersByDataId(dataId) {\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined' &&\n layer.getDataId() === dataId) {\n this.removeLayer(layer);\n }\n }\n }\n\n /**\n * Remove a layer from this layer group.\n * Warning: if current active layer, the index will\n * be set to `undefined`. Call one of the setActive\n * methods to define the active index.\n *\n * @param {ViewLayer | DrawLayer} layer The layer to remove.\n */\n removeLayer(layer) {\n // find layer\n const index = this.#layers.findIndex((item) => item === layer);\n if (index === -1) {\n throw new Error('Cannot find layer to remove');\n }\n // unbind and update active index\n if (layer instanceof ViewLayer) {\n this.#unbindViewLayer(layer);\n if (this.#activeViewLayerIndex === index) {\n this.#activeViewLayerIndex = undefined;\n }\n } else {\n this.#unbindDrawLayer(layer);\n if (this.#activeDrawLayerIndex === index) {\n this.#activeDrawLayerIndex = undefined;\n }\n }\n // reset in storage\n this.#layers[index] = undefined;\n // update html\n layer.removeFromDOM();\n }\n\n /**\n * Show a crosshair at a given position.\n *\n * @param {Point} [position] The position where to show the crosshair,\n * defaults to current position.\n */\n #showCrosshairDiv(position) {\n if (typeof position === 'undefined') {\n position = this.#currentPosition;\n }\n\n // remove previous\n this.#removeCrosshairDiv();\n\n // use first layer as base for calculating position and\n // line sizes\n let baseLayer;\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n baseLayer = layer;\n break;\n }\n }\n if (typeof baseLayer === 'undefined') {\n logger.warn('No layer to show crosshair');\n return;\n }\n\n const vc = baseLayer.getViewController();\n const planePos = vc.getPlanePositionFromPosition(position);\n const displayPos = baseLayer.planePosToDisplay(planePos);\n\n // horizontal line\n if (typeof displayPos.getY() !== 'undefined') {\n const lineH = document.createElement('hr');\n lineH.id = this.getDivId() + '-scroll-crosshair-horizontal';\n lineH.className = 'horizontal';\n lineH.style.width = this.#containerDiv.offsetWidth + 'px';\n lineH.style.left = '0px';\n lineH.style.top = displayPos.getY() + 'px';\n // add to local array\n this.#crosshairHtmlElements.push(lineH);\n // add to html\n this.#containerDiv.appendChild(lineH);\n }\n\n // vertical line\n if (typeof displayPos.getX() !== 'undefined') {\n const lineV = document.createElement('hr');\n lineV.id = this.getDivId() + '-scroll-crosshair-vertical';\n lineV.className = 'vertical';\n lineV.style.width = this.#containerDiv.offsetHeight + 'px';\n lineV.style.left = (displayPos.getX()) + 'px';\n lineV.style.top = '0px';\n // add to local array\n this.#crosshairHtmlElements.push(lineV);\n // add to html\n this.#containerDiv.appendChild(lineV);\n }\n }\n\n /**\n * Remove crosshair divs.\n */\n #removeCrosshairDiv() {\n for (const element of this.#crosshairHtmlElements) {\n element.remove();\n }\n this.#crosshairHtmlElements = [];\n }\n\n /**\n * Displays a tooltip in a temporary `span`.\n * Works with css to hide/show the span only on mouse hover.\n *\n * @param {Point2D} point The update point.\n */\n showTooltip(point) {\n // remove previous div\n this.removeTooltipDiv();\n\n const viewLayer = this.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planePos = viewLayer.displayToPlanePos(point);\n const position = viewController.getPositionFromPlanePoint(planePos);\n const value = viewController.getRescaledImageValue(position);\n\n // create\n if (typeof value !== 'undefined') {\n const span = document.createElement('span');\n span.id = 'scroll-tooltip';\n // tooltip position\n span.style.left = (point.getX() + 10) + 'px';\n span.style.top = (point.getY() + 10) + 'px';\n let text = precisionRound(value, 3).toString();\n if (typeof viewController.getPixelUnit() !== 'undefined') {\n text += ' ' + viewController.getPixelUnit();\n }\n span.appendChild(document.createTextNode(text));\n // add to local var\n this.#tooltipHtmlElement = span;\n // add to html\n this.#containerDiv.appendChild(span);\n }\n }\n\n /**\n * Remove the tooltip html div.\n */\n removeTooltipDiv() {\n if (typeof this.#tooltipHtmlElement !== 'undefined') {\n this.#tooltipHtmlElement.remove();\n this.#tooltipHtmlElement = undefined;\n }\n }\n\n\n /**\n * Test if one of the view layers satisfies an input callbackFn.\n *\n * @param {Function} callbackFn A function that takes a ViewLayer as input\n * and returns a boolean.\n * @returns {boolean} True if one of the ViewLayers satisfies the callbackFn.\n */\n someViewLayer(callbackFn) {\n let hasOne = false;\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer &&\n callbackFn(layer)) {\n hasOne = true;\n break;\n }\n }\n return hasOne;\n }\n\n /**\n * Can the input position be set on one of the view layers.\n *\n * @param {Point} position The input position.\n * @returns {boolean} True if one view layer accepts the input position.\n */\n isPositionInBounds(position) {\n return this.someViewLayer(function (layer) {\n return layer.getViewController().isPositionInBounds(position);\n });\n }\n\n /**\n * Can one of the view layers be scrolled.\n *\n * @returns {boolean} True if one view layer can be scrolled.\n */\n canScroll() {\n return this.someViewLayer(function (layer) {\n return layer.getViewController().canScroll();\n });\n }\n\n /**\n * Does one of the view layer have more than one slice in the\n * given dimension.\n *\n * @param {number} dim The input dimension.\n * @returns {boolean} True if one view layer has more than one slice.\n */\n moreThanOne(dim) {\n return this.someViewLayer(function (layer) {\n return layer.getViewController().moreThanOne(dim);\n });\n }\n\n /**\n * Update layers (but not the active view layer) to a position change.\n *\n * @param {object} event The position change event.\n * @function\n */\n updateLayersToPositionChange = (event) => {\n // pause positionchange listeners\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n layer.removeEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n layer.removeEventListener('positionchange', this.#fireEvent);\n }\n }\n\n const index = new Index(event.value[0]);\n const position = new Point(event.value[1]);\n\n // store current position\n this.#currentPosition = position;\n\n if (this.#showCrosshair) {\n this.#showCrosshairDiv(position);\n }\n\n // origin of the first view layer\n let baseViewLayerOrigin0;\n let baseViewLayerOrigin;\n let scrollOffset;\n let planeOffset;\n // update position for all layers except the source one\n for (const layer of this.#layers) {\n if (typeof layer === 'undefined') {\n continue;\n }\n\n // update base offset (does not trigger redraw)\n let hasSetOffset = false;\n if (layer instanceof ViewLayer) {\n const vc = layer.getViewController();\n // origin0 should always be there\n const origin0 = vc.getOrigin();\n // depending on position, origin could be undefined\n const origin = vc.getOrigin(position);\n\n if (typeof baseViewLayerOrigin === 'undefined') {\n // first view layer, store origins\n baseViewLayerOrigin0 = origin0;\n baseViewLayerOrigin = origin;\n // no offset\n scrollOffset = new Vector3D(0, 0, 0);\n planeOffset = new Vector3D(0, 0, 0);\n } else {\n if (vc.isPositionInBounds(position) &&\n typeof origin !== 'undefined') {\n // TODO: compensate for possible different orientation between views\n const scrollDiff = baseViewLayerOrigin0.minus(origin0);\n scrollOffset = new Vector3D(\n scrollDiff.getX(), scrollDiff.getY(), scrollDiff.getZ());\n const planeDiff = baseViewLayerOrigin.minus(origin);\n planeOffset = new Vector3D(\n planeDiff.getX(), planeDiff.getY(), planeDiff.getZ());\n }\n }\n }\n\n // also set for draw layers\n // (should be next after a view layer)\n if (typeof scrollOffset !== 'undefined' &&\n typeof planeOffset !== 'undefined') {\n hasSetOffset =\n layer.setBaseOffset(\n scrollOffset, planeOffset,\n baseViewLayerOrigin, baseViewLayerOrigin0\n );\n }\n\n // reset to not propagate after draw layer\n // TODO: revise, could be unstable...\n if (layer instanceof DrawLayer) {\n scrollOffset = undefined;\n planeOffset = undefined;\n }\n\n // update position (triggers redraw)\n let hasSetPos = false;\n if (layer.getId() !== event.srclayerid) {\n hasSetPos = layer.setCurrentPosition(position, index);\n }\n\n // force redraw if needed\n if (!hasSetPos && hasSetOffset) {\n layer.draw();\n }\n }\n\n // re-start positionchange listeners\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n layer.addEventListener(\n 'positionchange', this.updateLayersToPositionChange);\n layer.addEventListener('positionchange', this.#fireEvent);\n }\n }\n };\n\n /**\n * Calculate the div to world size ratio needed to fit\n * the largest data.\n *\n * @returns {number|undefined} The ratio.\n */\n getDivToWorldSizeRatio() {\n // check container\n if (this.#containerDiv.offsetWidth === 0 &&\n this.#containerDiv.offsetHeight === 0) {\n throw new Error('Cannot fit to zero sized container.');\n }\n // get max world size\n const maxWorldSize = this.getMaxWorldSize();\n if (typeof maxWorldSize === 'undefined') {\n return undefined;\n }\n // if the container has a width but no height,\n // resize it to follow the same ratio to completely\n // fill the div with the image\n if (this.#containerDiv.offsetHeight === 0) {\n const ratioX = this.#containerDiv.offsetWidth / maxWorldSize.x;\n const height = maxWorldSize.y * ratioX;\n this.#containerDiv.style.height = height + 'px';\n }\n // return best fit\n return Math.min(\n this.#containerDiv.offsetWidth / maxWorldSize.x,\n this.#containerDiv.offsetHeight / maxWorldSize.y\n );\n }\n\n /**\n * Fit to container: set the layers div to world size ratio.\n *\n * @param {number} divToWorldSizeRatio The ratio.\n */\n fitToContainer(divToWorldSizeRatio) {\n // get maximum world size\n const maxWorldSize = this.getMaxWorldSize();\n // exit if none\n if (typeof maxWorldSize === 'undefined') {\n return;\n }\n\n const containerSize = {\n x: this.#containerDiv.offsetWidth,\n y: this.#containerDiv.offsetHeight\n };\n // offset to keep data centered\n const fitOffset = {\n x: -0.5 *\n (containerSize.x - Math.floor(maxWorldSize.x * divToWorldSizeRatio)),\n y: -0.5 *\n (containerSize.y - Math.floor(maxWorldSize.y * divToWorldSizeRatio))\n };\n\n // apply to layers\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.fitToContainer(containerSize, divToWorldSizeRatio, fitOffset);\n }\n }\n\n // update crosshair\n if (this.#showCrosshair) {\n this.#showCrosshairDiv();\n }\n }\n\n /**\n * Get the largest data world (mm) size.\n *\n * @returns {Scalar2D|undefined} The largest size as {x,y}.\n */\n getMaxWorldSize() {\n let maxSize = {x: 0, y: 0};\n for (const layer of this.#layers) {\n if (layer instanceof ViewLayer) {\n const size = layer.getImageWorldSize();\n if (size.x > maxSize.x) {\n maxSize.x = size.x;\n }\n if (size.y > maxSize.y) {\n maxSize.y = size.y;\n }\n }\n }\n if (maxSize.x === 0 && maxSize.y === 0) {\n maxSize = undefined;\n }\n return maxSize;\n }\n\n /**\n * Flip all layers along the Z axis without offset compensation.\n */\n flipScaleZ() {\n this.#baseScale.z *= -1;\n this.setScale(this.#baseScale);\n }\n\n /**\n * Add scale to the layers. Scale cannot go lower than 0.1.\n *\n * @param {number} scaleStep The scale to add.\n * @param {Point3D} center The scale center Point3D.\n */\n addScale(scaleStep, center) {\n const newScale = {\n x: this.#scale.x * (1 + scaleStep),\n y: this.#scale.y * (1 + scaleStep),\n z: this.#scale.z * (1 + scaleStep)\n };\n this.setScale(newScale, center);\n }\n\n /**\n * Set the layers' scale.\n *\n * @param {Scalar3D} newScale The scale to apply as {x,y,z}.\n * @param {Point3D} [center] The scale center Point3D.\n * @fires LayerGroup#zoomchange\n */\n setScale(newScale, center) {\n this.#scale = newScale;\n // apply to layers\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.setScale(this.#scale, center);\n }\n }\n\n // event value\n const value = [\n newScale.x,\n newScale.y,\n newScale.z\n ];\n if (typeof center !== 'undefined') {\n value.push(center.getX());\n value.push(center.getY());\n value.push(center.getZ());\n }\n\n /**\n * Zoom change event.\n *\n * @event LayerGroup#zoomchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'zoomchange',\n value: value\n });\n }\n\n /**\n * Add translation to the layers.\n *\n * @param {Scalar3D} translation The translation as {x,y,z}.\n */\n addTranslation(translation) {\n this.setOffset({\n x: this.#offset.x - translation.x,\n y: this.#offset.y - translation.y,\n z: this.#offset.z - translation.z\n });\n }\n\n /**\n * Set the layers' offset.\n *\n * @param {Scalar3D} newOffset The offset as {x,y,z}.\n * @fires LayerGroup#offsetchange\n */\n setOffset(newOffset) {\n // store\n this.#offset = newOffset;\n // apply to layers\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.setOffset(this.#offset);\n }\n }\n\n /**\n * Offset change event.\n *\n * @event LayerGroup#offsetchange\n * @type {object}\n * @property {Array} value The changed value.\n */\n this.#fireEvent({\n type: 'offsetchange',\n value: [\n this.#offset.x,\n this.#offset.y,\n this.#offset.z\n ]\n });\n }\n\n /**\n * Reset the stage to its initial scale and no offset.\n */\n reset() {\n this.setScale(this.#baseScale);\n this.setOffset({x: 0, y: 0, z: 0});\n }\n\n /**\n * Draw the layer.\n */\n draw() {\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.draw();\n }\n }\n }\n\n /**\n * Display the layer.\n *\n * @param {boolean} flag Whether to display the layer or not.\n */\n display(flag) {\n for (const layer of this.#layers) {\n if (typeof layer !== 'undefined') {\n layer.display(flag);\n }\n }\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // LayerGroup class\n","import {Index} from '../math/index';\nimport {Vector3D} from '../math/vector';\nimport {Point3D} from '../math/point';\nimport {isIdentityMat33} from '../math/matrix';\nimport {Size} from '../image/size';\nimport {Spacing} from '../image/spacing';\nimport {Image} from '../image/image';\nimport {Geometry} from '../image/geometry';\nimport {PlaneHelper} from '../image/planeHelper';\nimport {\n getSliceIterator,\n getIteratorValues,\n getRegionSliceIterator,\n getVariableRegionSliceIterator\n} from '../image/iterator';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {View} from '../image/view';\nimport {WindowLevel} from '../image/windowLevel';\nimport {Point, Point2D} from '../math/point';\nimport {Scalar2D} from '../math/scalar';\nimport {Matrix33} from '../math/matrix';\nimport {ViewLayer} from '../gui/viewLayer';\n/* eslint-enable no-unused-vars */\n\n/**\n * View controller.\n */\nexport class ViewController {\n\n /**\n * Associated View.\n *\n * @type {View}\n */\n #view;\n\n /**\n * Plane helper.\n *\n * @type {PlaneHelper}\n */\n #planeHelper;\n\n /**\n * Third dimension player ID (created by setInterval).\n *\n * @type {number|undefined}\n */\n #playerID;\n\n /**\n * Is DICOM seg mask flag.\n *\n * @type {boolean}\n */\n #isMask = false;\n\n /**\n * @param {View} view The associated view.\n */\n constructor(view) {\n // check view\n if (typeof view.getImage() === 'undefined') {\n throw new Error('View does not have an image, cannot setup controller');\n }\n\n this.#view = view;\n\n // setup the plane helper\n this.#planeHelper = new PlaneHelper(\n view.getImage().getGeometry().getRealSpacing(),\n view.getImage().getGeometry().getOrientation(),\n view.getOrientation()\n );\n\n // mask segment helper\n if (view.getImage().getMeta().Modality === 'SEG') {\n this.#isMask = true;\n }\n }\n\n /**\n * Get the plane helper.\n *\n * @returns {PlaneHelper} The helper.\n */\n getPlaneHelper() {\n return this.#planeHelper;\n }\n\n /**\n * Check is the associated image is a mask.\n *\n * @returns {boolean} True if the associated image is a mask.\n */\n isMask() {\n return this.#isMask;\n }\n\n /**\n * Initialise the controller.\n */\n initialise() {\n // set window/level to first preset\n this.setWindowLevelPresetById(0);\n // default position\n this.setCurrentPosition(this.getPositionFromPlanePoint(\n new Point2D(0, 0)\n ));\n }\n\n /**\n * Get the image modality.\n *\n * @returns {string} The modality.\n */\n getModality() {\n return this.#view.getImage().getMeta().Modality;\n }\n\n /**\n * Get the window/level presets names.\n *\n * @returns {string[]} The presets names.\n */\n getWindowLevelPresetsNames() {\n return this.#view.getWindowPresetsNames();\n }\n\n /**\n * Add window/level presets to the view.\n *\n * @param {object} presets A preset object.\n * @returns {object} The list of presets.\n */\n addWindowLevelPresets(presets) {\n return this.#view.addWindowPresets(presets);\n }\n\n /**\n * Set the window level to the preset with the input name.\n *\n * @param {string} name The name of the preset to activate.\n */\n setWindowLevelPreset(name) {\n this.#view.setWindowLevelPreset(name);\n }\n\n /**\n * Set the window level to the preset with the input id.\n *\n * @param {number} id The id of the preset to activate.\n */\n setWindowLevelPresetById(id) {\n this.#view.setWindowLevelPresetById(id);\n }\n\n /**\n * Check if the controller is playing.\n *\n * @returns {boolean} True if the controler is playing.\n */\n isPlaying() {\n return (typeof this.#playerID !== 'undefined');\n }\n\n /**\n * Get the current position.\n *\n * @returns {Point} The position.\n */\n getCurrentPosition() {\n return this.#view.getCurrentPosition();\n }\n\n /**\n * Get the current index.\n *\n * @returns {Index} The current index.\n */\n getCurrentIndex() {\n return this.#view.getCurrentIndex();\n }\n\n /**\n * Get the SOP image UID of the current image.\n *\n * @returns {string} The UID.\n */\n getCurrentImageUid() {\n return this.#view.getCurrentImageUid();\n }\n\n /**\n * Get the image origin index for a image UID.\n *\n * @param {string} uid The UID.\n * @returns {Index|undefined} The origin index.\n */\n getOriginIndexForImageUid(uid) {\n return this.#view.getOriginIndexForImageUid(uid);\n }\n\n /**\n * Get the current oriented index.\n *\n * @returns {Index} The index.\n */\n getCurrentOrientedIndex() {\n let res = this.#view.getCurrentIndex();\n if (typeof this.#view.getOrientation() !== 'undefined') {\n // view oriented => image de-oriented\n const vector = this.#planeHelper.getImageDeOrientedVector3D(\n new Vector3D(res.get(0), res.get(1), res.get(2))\n );\n res = new Index([\n vector.getX(), vector.getY(), vector.getZ()\n ]);\n }\n return res;\n }\n\n /**\n * Get the scroll index.\n *\n * @returns {number} The index.\n */\n getScrollIndex() {\n return this.#view.getScrollIndex();\n }\n\n /**\n * Get the current scroll index value.\n *\n * @returns {object} The value.\n */\n getCurrentScrollIndexValue() {\n return this.#view.getCurrentIndex().get(this.#view.getScrollIndex());\n }\n\n /**\n * Get the first origin or at a given position.\n *\n * @param {Point} [position] Opitonal position.\n * @returns {Point3D} The origin.\n */\n getOrigin(position) {\n return this.#view.getOrigin(position);\n }\n\n /**\n * Get the current scroll position value.\n *\n * @returns {object} The value.\n */\n getCurrentScrollPosition() {\n const scrollIndex = this.#view.getScrollIndex();\n return this.#view.getCurrentPosition().get(scrollIndex);\n }\n\n /**\n * Generate display image data to be given to a canvas.\n *\n * @param {ImageData} array The array to fill in.\n * @param {Index} [index] Optional index at which to generate,\n * otherwise generates at current index.\n */\n generateImageData(array, index) {\n this.#view.generateImageData(array, index);\n }\n\n /**\n * Set the associated image.\n *\n * @param {Image} img The associated image.\n */\n setImage(img) {\n this.#view.setImage(img);\n }\n\n /**\n * Get the current view (2D) spacing.\n *\n * @returns {Scalar2D} The spacing as a 2D array.\n */\n get2DSpacing() {\n const spacing = this.#view.getImage().getGeometry().getSpacing(\n this.#view.getOrientation());\n return spacing.get2D();\n }\n\n /**\n * Get the image rescaled value at the input position.\n *\n * @param {Point} position The input position.\n * @returns {number|undefined} The image value or undefined if out of bounds\n * or no quantifiable (for ex RGB).\n */\n getRescaledImageValue(position) {\n const image = this.#view.getImage();\n if (!image.canQuantify()) {\n return;\n }\n const geometry = image.getGeometry();\n const index = geometry.worldToIndex(position);\n let value;\n if (geometry.isIndexInBounds(index)) {\n value = image.getRescaledValueAtIndex(index);\n }\n return value;\n }\n\n /**\n * Get the image pixel unit.\n *\n * @returns {string} The unit.\n */\n getPixelUnit() {\n return this.#view.getImage().getMeta().pixelUnit;\n }\n\n /**\n * Extract a slice from an image at the given index and orientation.\n *\n * @param {Image} image The image to parse.\n * @param {Index} index The current index.\n * @param {boolean} isRescaled Flag for rescaled values (default false).\n * @param {Matrix33} orientation The desired orientation.\n * @returns {Image} The extracted slice.\n */\n #getSlice(image, index, isRescaled, orientation) {\n // generate slice values\n const sliceIter = getSliceIterator(\n image,\n index,\n isRescaled,\n orientation\n );\n const sliceValues = getIteratorValues(sliceIter);\n // oriented geometry\n const orientedSize = image.getGeometry().getSize(orientation);\n const sizeValues = orientedSize.getValues();\n sizeValues[2] = 1;\n const sliceSize = new Size(sizeValues);\n const orientedSpacing = image.getGeometry().getSpacing(orientation);\n const spacingValues = orientedSpacing.getValues();\n spacingValues[2] = 1;\n const sliceSpacing = new Spacing(spacingValues);\n const sliceOrigin = new Point3D(0, 0, 0);\n const sliceGeometry =\n new Geometry(sliceOrigin, sliceSize, sliceSpacing);\n // slice image\n // @ts-ignore\n return new Image(sliceGeometry, sliceValues);\n }\n\n /**\n * Get some values from the associated image in a region.\n *\n * @param {Point2D} min Minimum point.\n * @param {Point2D} max Maximum point.\n * @returns {Array} A list of values.\n */\n getImageRegionValues(min, max) {\n let image = this.#view.getImage();\n const orientation = this.#view.getOrientation();\n let currentIndex = this.getCurrentIndex();\n let rescaled = true;\n\n // create oriented slice if needed\n if (!isIdentityMat33(orientation)) {\n image = this.#getSlice(image, currentIndex, rescaled, orientation);\n // update position\n currentIndex = new Index([0, 0, 0]);\n rescaled = false;\n }\n\n // get region values\n const iter = getRegionSliceIterator(\n image, currentIndex, rescaled, min, max);\n let values = [];\n if (iter) {\n values = getIteratorValues(iter);\n }\n return values;\n }\n\n /**\n * Get some values from the associated image in variable regions.\n *\n * @param {number[][][]} regions A list of [x, y] pairs (min, max).\n * @returns {Array} A list of values.\n */\n getImageVariableRegionValues(regions) {\n let image = this.#view.getImage();\n const orientation = this.#view.getOrientation();\n let currentIndex = this.getCurrentIndex();\n let rescaled = true;\n\n // create oriented slice if needed\n if (!isIdentityMat33(orientation)) {\n image = this.#getSlice(image, currentIndex, rescaled, orientation);\n // update position\n currentIndex = new Index([0, 0, 0]);\n rescaled = false;\n }\n\n // get region values\n const iter = getVariableRegionSliceIterator(\n image, currentIndex, rescaled, regions);\n let values = [];\n if (iter) {\n values = getIteratorValues(iter);\n }\n return values;\n }\n\n /**\n * Can the image values be quantified?\n *\n * @returns {boolean} True if possible.\n */\n canQuantifyImage() {\n return this.#view.getImage().canQuantify();\n }\n\n /**\n * Can window and level be applied to the data?\n *\n * @returns {boolean} True if possible.\n * @deprecated Please use isMonochrome instead.\n */\n canWindowLevel() {\n return this.isMonochrome();\n }\n\n /**\n * Is the data monochrome.\n *\n * @returns {boolean} True if the data is monochrome.\n */\n isMonochrome() {\n return this.#view.getImage().isMonochrome();\n }\n\n /**\n * Can the data be scrolled?\n *\n * @returns {boolean} True if the data has either the third dimension\n * or above greater than one.\n */\n canScroll() {\n return this.#view.getImage().canScroll(this.#view.getOrientation());\n }\n\n /**\n * Get the oriented image size.\n *\n * @returns {Size} The size.\n */\n getImageSize() {\n return this.#view.getImage().getGeometry().getSize(\n this.#view.getOrientation());\n }\n\n\n /**\n * Is the data size larger than one in the given dimension?\n *\n * @param {number} dim The dimension.\n * @returns {boolean} True if the image size is larger than one\n * in the given dimension.\n */\n moreThanOne(dim) {\n return this.getImageSize().moreThanOne(dim);\n }\n\n /**\n * Get the image world (mm) 2D size.\n *\n * @returns {Scalar2D} The 2D size as {x,y}.\n */\n getImageWorldSize() {\n const geometry = this.#view.getImage().getGeometry();\n const size = geometry.getSize(this.#view.getOrientation()).get2D();\n const spacing = geometry.getSpacing(this.#view.getOrientation()).get2D();\n return {\n x: size.x * spacing.x,\n y: size.y * spacing.y\n };\n }\n\n /**\n * Get the image rescaled data range.\n *\n * @returns {object} The range as {min, max}.\n */\n getImageRescaledDataRange() {\n return this.#view.getImage().getRescaledDataRange();\n }\n\n /**\n * Compare the input meta data to the associated image one.\n *\n * @param {object} meta The meta data.\n * @returns {boolean} True if the associated image has equal meta data.\n */\n equalImageMeta(meta) {\n const imageMeta = this.#view.getImage().getMeta();\n // loop through input meta keys\n const metaKeys = Object.keys(meta);\n for (let i = 0; i < metaKeys.length; ++i) {\n const metaKey = metaKeys[i];\n if (typeof imageMeta[metaKey] === 'undefined') {\n return false;\n }\n if (imageMeta[metaKey] !== meta[metaKey]) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Check if the current position (default) or\n * the provided position is in bounds.\n *\n * @param {Point} [position] Optional position.\n * @returns {boolean} True is the position is in bounds.\n */\n isPositionInBounds(position) {\n return this.#view.isPositionInBounds(position);\n }\n\n /**\n * Set the current position.\n *\n * @param {Point} pos The position.\n * @param {boolean} [silent] If true, does not fire a\n * positionchange event.\n * @returns {boolean} False if not in bounds.\n */\n setCurrentPosition(pos, silent) {\n return this.#view.setCurrentPosition(pos, silent);\n }\n\n /**\n * Get a world position from a 2D plane position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point} The associated position.\n */\n getPositionFromPlanePoint(point2D) {\n // keep third direction\n const k = this.getCurrentScrollIndexValue();\n const planePoint = new Point3D(point2D.getX(), point2D.getY(), k);\n // de-orient\n const point = this.#planeHelper.getImageOrientedPoint3D(planePoint);\n // ~indexToWorld to not loose precision\n const geometry = this.#view.getImage().getGeometry();\n const point3D = geometry.pointToWorld(point);\n // merge with current position to keep extra dimensions\n return this.getCurrentPosition().mergeWith3D(point3D);\n }\n\n /**\n * Get a 2D plane position from a world position.\n *\n * @param {Point} point The 3D position.\n * @returns {Point2D} The 2D position.\n */\n getPlanePositionFromPosition(point) {\n // orient\n const geometry = this.#view.getImage().getGeometry();\n // ~worldToIndex to not loose precision\n const point3D = geometry.worldToPoint(point);\n const planePoint = this.#planeHelper.getImageDeOrientedPoint3D(point3D);\n // return\n return new Point2D(\n planePoint.getX(),\n planePoint.getY(),\n );\n }\n\n /**\n * Set the current index.\n *\n * @param {Index} index The index.\n * @param {boolean} [silent] If true, does not fire a positionchange event.\n * @returns {boolean} False if not in bounds.\n */\n setCurrentIndex(index, silent) {\n return this.#view.setCurrentIndex(index, silent);\n }\n\n /**\n * Get a plane 3D position from a plane 2D position: does not compensate\n * for the image origin. Needed for setting the scale center...\n *\n * @param {Point2D} point2D The 2D position.\n * @returns {Point3D} The 3D point.\n */\n getPlanePositionFromPlanePoint(point2D) {\n // keep third direction\n const k = this.getCurrentScrollIndexValue();\n const planePoint = new Point3D(point2D.getX(), point2D.getY(), k);\n // de-orient\n const point = this.#planeHelper.getTargetDeOrientedPoint3D(planePoint);\n // ~indexToWorld to not loose precision\n const geometry = this.#view.getImage().getGeometry();\n const spacing = geometry.getRealSpacing();\n return new Point3D(\n point.getX() * spacing.get(0),\n point.getY() * spacing.get(1),\n point.getZ() * spacing.get(2));\n }\n\n /**\n * Get a 3D offset from a plane one.\n *\n * @param {Scalar2D} offset2D The plane offset as {x,y}.\n * @returns {Vector3D} The 3D world offset.\n */\n getOffset3DFromPlaneOffset(offset2D) {\n return this.#planeHelper.getOffset3DFromPlaneOffset(offset2D);\n }\n\n /**\n * Get the current index incremented in the input direction.\n *\n * @param {number} dim The direction in which to increment.\n * @returns {Index} The resulting index.\n */\n #getIncrementIndex(dim) {\n const index = this.getCurrentIndex();\n const values = new Array(index.length());\n values.fill(0);\n if (dim < values.length) {\n values[dim] = 1;\n } else {\n console.warn('Cannot increment given index: ', dim, values.length);\n }\n const incr = new Index(values);\n return index.add(incr);\n }\n\n /**\n * Get the current index decremented in the input direction.\n *\n * @param {number} dim The direction in which to decrement.\n * @returns {Index} The resulting index.\n */\n #getDecrementIndex(dim) {\n const index = this.getCurrentIndex();\n const values = new Array(index.length());\n values.fill(0);\n if (dim < values.length) {\n values[dim] = -1;\n } else {\n console.warn('Cannot decrement given index: ', dim, values.length);\n }\n const incr = new Index(values);\n return index.add(incr);\n }\n\n /**\n * Get the current index incremented in the scroll direction.\n *\n * @returns {Index} The resulting index.\n */\n #getIncrementScrollIndex() {\n return this.#getIncrementIndex(this.getScrollIndex());\n }\n\n /**\n * Get the current index decremented in the scroll direction.\n *\n * @returns {Index} The resulting index.\n */\n #getDecrementScrollIndex() {\n return this.#getDecrementIndex(this.getScrollIndex());\n }\n\n /**\n * Get the current position incremented in the input direction.\n *\n * @param {number} dim The direction in which to increment.\n * @returns {Point} The resulting point.\n */\n getIncrementPosition(dim) {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getIncrementIndex(dim));\n }\n\n /**\n * Get the current position decremented in the input direction.\n *\n * @param {number} dim The direction in which to decrement.\n * @returns {Point} The resulting point.\n */\n getDecrementPosition(dim) {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getDecrementIndex(dim));\n }\n\n /**\n * Get the current position decremented in the scroll direction.\n *\n * @returns {Point} The resulting point.\n */\n getIncrementScrollPosition() {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getIncrementScrollIndex());\n }\n\n /**\n * Get the current position decremented in the scroll direction.\n *\n * @returns {Point} The resulting point.\n */\n getDecrementScrollPosition() {\n const geometry = this.#view.getImage().getGeometry();\n return geometry.indexToWorld(this.#getDecrementScrollIndex());\n }\n\n /**\n * Increment the provided dimension.\n *\n * @param {number} dim The dimension to increment.\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n incrementIndex(dim, silent) {\n return this.setCurrentIndex(this.#getIncrementIndex(dim), silent);\n }\n\n /**\n * Decrement the provided dimension.\n *\n * @param {number} dim The dimension to increment.\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n decrementIndex(dim, silent) {\n return this.setCurrentIndex(this.#getDecrementIndex(dim), silent);\n }\n\n /**\n * Decrement the scroll dimension index.\n *\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n decrementScrollIndex(silent) {\n return this.setCurrentIndex(this.#getDecrementScrollIndex(), silent);\n }\n\n /**\n * Increment the scroll dimension index.\n *\n * @param {boolean} [silent] Do not send event.\n * @returns {boolean} False if not in bounds.\n */\n incrementScrollIndex(silent) {\n return this.setCurrentIndex(this.#getIncrementScrollIndex(), silent);\n }\n\n /**\n * Scroll play: loop through all slices.\n */\n play() {\n // ensure data is scrollable: dim >= 3\n if (!this.canScroll()) {\n return;\n }\n if (typeof this.#playerID === 'undefined') {\n const image = this.#view.getImage();\n const recommendedDisplayFrameRate =\n image.getMeta().RecommendedDisplayFrameRate;\n const milliseconds = this.#view.getPlaybackMilliseconds(\n recommendedDisplayFrameRate);\n const size = image.getGeometry().getSize();\n const canScroll3D = size.canScroll3D();\n\n this.#playerID = window.setInterval(() => {\n let canDoMore = false;\n if (canScroll3D) {\n canDoMore = this.incrementScrollIndex();\n } else {\n canDoMore = this.incrementIndex(3);\n }\n // end of scroll, loop back\n if (!canDoMore) {\n const pos1 = this.getCurrentIndex();\n const values = pos1.getValues();\n const orientation = this.#view.getOrientation();\n if (canScroll3D) {\n values[orientation.getThirdColMajorDirection()] = 0;\n } else {\n values[3] = 0;\n }\n const index = new Index(values);\n const geometry = this.#view.getImage().getGeometry();\n this.setCurrentPosition(geometry.indexToWorld(index));\n }\n }, milliseconds);\n } else {\n this.stop();\n }\n }\n\n /**\n * Stop scroll playing.\n */\n stop() {\n if (typeof this.#playerID !== 'undefined') {\n clearInterval(this.#playerID);\n this.#playerID = undefined;\n }\n }\n\n /**\n * Get the window/level.\n *\n * @returns {WindowLevel} The window and level.\n */\n getWindowLevel() {\n return this.#view.getWindowLevel();\n }\n\n /**\n * Get the current window level preset name.\n *\n * @returns {string} The preset name.\n */\n getCurrentWindowPresetName() {\n return this.#view.getCurrentWindowPresetName();\n }\n\n /**\n * Set the window and level.\n *\n * @param {WindowLevel} wl The window and level.\n */\n setWindowLevel(wl) {\n this.#view.setWindowLevel(wl);\n }\n\n /**\n * Get the colour map.\n *\n * @returns {string} The colour map name.\n */\n getColourMap() {\n return this.#view.getColourMap();\n }\n\n /**\n * Set the colour map.\n *\n * @param {string} name The colour map name.\n */\n setColourMap(name) {\n this.#view.setColourMap(name);\n }\n\n /**\n * @callback alphaFn\n * @param {number[]|number} value The pixel value.\n * @param {number} index The values' index.\n * @returns {number} The opacity of the input value.\n */\n\n /**\n * Set the view per value alpha function.\n *\n * @param {alphaFn} func The function.\n */\n setViewAlphaFunction(func) {\n this.#view.setAlphaFunction(func);\n }\n\n /**\n * Bind the view image to the provided layer.\n *\n * @param {ViewLayer} viewLayer The layer to bind.\n */\n bindImageAndLayer(viewLayer) {\n const image = this.#view.getImage();\n image.addEventListener('imagecontentchange',\n viewLayer.onimagecontentchange\n );\n image.addEventListener('imagegeometrychange',\n viewLayer.onimagegeometrychange\n );\n }\n\n /**\n * Unbind the view image to the provided layer.\n *\n * @param {ViewLayer} viewLayer The layer to bind.\n */\n unbindImageAndLayer(viewLayer) {\n const image = this.#view.getImage();\n image.removeEventListener('imagecontentchange',\n viewLayer.onimagecontentchange\n );\n image.removeEventListener('imagegeometrychange',\n viewLayer.onimagegeometrychange\n );\n }\n\n} // class ViewController\n","/**\n * Namespace for translation function\n * (in a namespace to allow for override from client).\n */\nexport const i18n = {\n\n /**\n * Get the translated text.\n *\n * @param {string} key The key to the text entry.\n * @returns {string|undefined} The translated text.\n */\n t(key) {\n // defaut expects something like 'unit.cm2'\n const unit = {\n mm: 'mm',\n cm2: 'cm²',\n degree: '°'\n };\n const props = key.split('.');\n if (props.length !== 2) {\n throw new Error('Unexpected translation key length.');\n }\n if (props[0] !== 'unit') {\n throw new Error('Unexpected translation key prefix.');\n }\n return unit[props[1]];\n }\n\n};\n","import {i18n} from '../utils/i18n';\nimport {getStats} from './stats';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mulitply the three inputs if the last two are not null.\n *\n * @param {number} a The first input.\n * @param {number} b The second input.\n * @param {number} c The third input.\n * @returns {number} The multiplication of the three inputs or\n * null if one of the last two is null.\n */\nfunction mulABC(a, b, c) {\n let res = null;\n if (b !== null && c !== null) {\n res = a * b * c;\n }\n return res;\n}\n\n/**\n * Circle shape.\n */\nexport class Circle {\n\n /**\n * Circle centre.\n *\n * @type {Point2D}\n */\n #centre;\n\n /**\n * Circle radius.\n *\n * @type {number}\n */\n #radius;\n\n /**\n * @param {Point2D} centre A Point2D representing the centre\n * of the circle.\n * @param {number} radius The radius of the circle.\n */\n constructor(centre, radius) {\n this.#centre = centre;\n this.#radius = radius;\n }\n\n /**\n * Get the centre (point) of the circle.\n *\n * @returns {Point2D} The center (point) of the circle.\n */\n getCenter() {\n return this.#centre;\n }\n\n /**\n * Get the radius of the circle.\n *\n * @returns {number} The radius of the circle.\n */\n getRadius() {\n return this.#radius;\n }\n\n\n /**\n * Check for equality.\n *\n * @param {Circle} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getCenter().equals(rhs.getCenter()) &&\n this.getRadius() === rhs.getRadius();\n }\n\n /**\n * Get the surface of the circle.\n *\n * @returns {number} The surface of the circle.\n */\n getSurface() {\n return Math.PI * this.getRadius() * this.getRadius();\n }\n\n /**\n * Get the surface of the circle according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The surface of the circle multiplied by the given\n * spacing or null for null spacings.\n */\n getWorldSurface(spacing2D) {\n return mulABC(this.getSurface(), spacing2D.x, spacing2D.y);\n }\n\n /**\n * Get the rounded limits of the circle.\n *\n * See: {@link https://en.wikipedia.org/wiki/Circle#Equations}.\n *\n * Circle formula: `x*x + y*y = r*r`.\n *\n * Implies: `y = (+-) sqrt(r*r - x*x)`.\n *\n * @returns {number[][][]} The rounded limits:\n * list of [x, y] pairs (min, max).\n */\n getRound() {\n const centerX = this.getCenter().getX();\n const centerY = this.getCenter().getY();\n const radius = this.getRadius();\n const rSquare = Math.pow(radius, 2);\n // Y bounds\n const minY = centerY - radius;\n const maxY = centerY + radius;\n const regions = [];\n // loop through lines and store limits\n for (let y = minY; y < maxY; ++y) {\n const diff = rSquare - Math.pow(y - centerY, 2);\n // remove small values (possibly negative)\n if (Math.abs(diff) < 1e-7) {\n continue;\n }\n const transX = Math.sqrt(diff);\n // remove small values\n if (transX < 0.5) {\n continue;\n }\n regions.push([\n [Math.round(centerX - transX), Math.round(y)],\n [Math.round(centerX + transX), Math.round(y)]\n ]);\n }\n return regions;\n }\n\n /**\n * Quantify an circle according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {object} A quantification object.\n */\n quantify(viewController, flags) {\n const quant = {};\n // shape quantification\n const spacing2D = viewController.get2DSpacing();\n quant.radius = {\n value: this.getRadius() * spacing2D.x,\n unit: i18n.t('unit.mm')\n };\n const surface = this.getWorldSurface(spacing2D);\n if (surface !== null) {\n quant.surface = {value: surface / 100, unit: i18n.t('unit.cm2')};\n }\n\n // pixel values quantification\n if (viewController.canQuantifyImage()) {\n const regions = this.getRound();\n if (regions.length !== 0) {\n const values = viewController.getImageVariableRegionValues(regions);\n const unit = viewController.getPixelUnit();\n const quantif = getStats(values, flags);\n quant.min = {value: quantif.min, unit: unit};\n quant.max = {value: quantif.max, unit: unit};\n quant.mean = {value: quantif.mean, unit: unit};\n quant.stdDev = {value: quantif.stdDev, unit: unit};\n if (typeof quantif.median !== 'undefined') {\n quant.median = {value: quantif.median, unit: unit};\n }\n if (typeof quantif.p25 !== 'undefined') {\n quant.p25 = {value: quantif.p25, unit: unit};\n }\n if (typeof quantif.p75 !== 'undefined') {\n quant.p75 = {value: quantif.p75, unit: unit};\n }\n }\n }\n\n // return\n return quant;\n }\n\n} // Circle class\n","// linting 'type {Object.}' will give:\n// warning Use object shorthand or index signatures instead of `Object`,\n// e.g., `{[key: string]: string}` jsdoc/check-types\n// pb: jsdoc does not support the object shorthand\n// and ignoring will give vscode warning since the doc linting is not\n// activated by default.\n\n// Overridable default object.\nexport const defaults = {\n /**\n * List of default window level presets.\n *\n * @type {Object.>}\n */\n labelText: {\n arrow: {\n '*': ''\n },\n circle: {\n '*': '{surface}'\n },\n ellipse: {\n '*': '{surface}'\n },\n freeHand: {\n '*': ''\n },\n protractor: {\n '*': '{angle}'\n },\n rectangle: {\n '*': '{surface}'\n },\n roi: {\n '*': ''\n },\n ruler: {\n '*': '{length}'\n }\n }\n};\n","import {getShadowColour} from '../utils/colour';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Style class.\n */\nexport class Style {\n /**\n * Font size.\n *\n * @type {number}\n */\n #fontSize = 10;\n\n /**\n * Font family.\n *\n * @type {string}\n */\n #fontFamily = 'Verdana';\n\n /**\n * Text colour.\n *\n * @type {string}\n */\n #textColour = '#fff';\n\n /**\n * Line colour.\n *\n * @type {string}\n */\n #lineColour = '#ffff80';\n\n /**\n * Base scale.\n *\n * @type {Scalar2D}\n */\n #baseScale = {x: 1, y: 1};\n\n /**\n * Zoom scale.\n *\n * @type {Scalar2D}\n */\n #zoomScale = {x: 1, y: 1};\n\n /**\n * Stroke width.\n *\n * @type {number}\n */\n #strokeWidth = 2;\n\n /**\n * Shadow offset.\n *\n * @type {Scalar2D}\n */\n #shadowOffset = {x: 0.25, y: 0.25};\n\n /**\n * Tag opacity.\n *\n * @type {number}\n */\n #tagOpacity = 0.2;\n\n /**\n * Text padding.\n *\n * @type {number}\n */\n #textPadding = 3;\n\n /**\n * Get the font family.\n *\n * @returns {string} The font family.\n */\n getFontFamily() {\n return this.#fontFamily;\n }\n\n /**\n * Get the font size.\n *\n * @returns {number} The font size.\n */\n getFontSize() {\n return this.#fontSize;\n }\n\n /**\n * Get the stroke width.\n *\n * @returns {number} The stroke width.\n */\n getStrokeWidth() {\n return this.#strokeWidth;\n }\n\n /**\n * Get the text colour.\n *\n * @returns {string} The text colour.\n */\n getTextColour() {\n return this.#textColour;\n }\n\n /**\n * Get the line colour.\n *\n * @returns {string} The line colour.\n */\n getLineColour() {\n return this.#lineColour;\n }\n\n /**\n * Set the line colour.\n *\n * @param {string} colour The line colour.\n */\n setLineColour(colour) {\n this.#lineColour = colour;\n }\n\n /**\n * Set the base scale.\n *\n * @param {Scalar2D} scale The scale as {x,y}.\n */\n setBaseScale(scale) {\n this.#baseScale = scale;\n }\n\n /**\n * Set the zoom scale.\n *\n * @param {Scalar2D} scale The scale as {x,y}.\n */\n setZoomScale(scale) {\n this.#zoomScale = scale;\n }\n\n /**\n * Get the base scale.\n *\n * @returns {Scalar2D} The scale as {x,y}.\n */\n getBaseScale() {\n return this.#baseScale;\n }\n\n /**\n * Get the zoom scale.\n *\n * @returns {Scalar2D} The scale as {x,y}.\n */\n getZoomScale() {\n return this.#zoomScale;\n }\n\n /**\n * Scale an input value using the base scale.\n *\n * @param {number} value The value to scale.\n * @returns {number} The scaled value.\n */\n scale(value) {\n // TODO: 2D?\n return value / this.#baseScale.x;\n }\n\n /**\n * Apply zoom scale on an input value.\n *\n * @param {number} value The value to scale.\n * @returns {Scalar2D} The scaled value as {x,y}.\n */\n applyZoomScale(value) {\n // times 2 so that the font size 10 looks like a 10...\n // (same logic as in the DrawController::updateLabelScale)\n return {\n x: 2 * value / this.#zoomScale.x,\n y: 2 * value / this.#zoomScale.y\n };\n }\n\n /**\n * Get the shadow offset.\n *\n * @returns {Scalar2D} The offset as {x,y}.\n */\n getShadowOffset() {\n return this.#shadowOffset;\n }\n\n /**\n * Get the tag opacity.\n *\n * @returns {number} The opacity.\n */\n getTagOpacity() {\n return this.#tagOpacity;\n }\n\n /**\n * Get the text padding.\n *\n * @returns {number} The padding.\n */\n getTextPadding() {\n return this.#textPadding;\n }\n\n /**\n * Get the font definition string.\n *\n * @returns {string} The font definition string.\n */\n getFontStr() {\n return ('normal ' + this.getFontSize() + 'px sans-serif');\n }\n\n /**\n * Get the line height.\n *\n * @returns {number} The line height.\n */\n getLineHeight() {\n return (this.getFontSize() + this.getFontSize() / 5);\n }\n\n /**\n * Get the font size scaled to the display.\n *\n * @returns {number} The scaled font size.\n */\n getScaledFontSize() {\n return this.scale(this.getFontSize());\n }\n\n /**\n * Get the stroke width scaled to the display.\n *\n * @returns {number} The scaled stroke width.\n */\n getScaledStrokeWidth() {\n return this.scale(this.getStrokeWidth());\n }\n\n /**\n * Get the shadow line colour.\n *\n * @returns {string} The shadow line colour.\n */\n getShadowLineColour() {\n return getShadowColour(this.getLineColour());\n }\n\n} // class Style\n","import {Point2D} from '../math/point';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\nimport {Style} from '../gui/style';\n// external\nimport Konva from 'konva';\n/* eslint-enable no-unused-vars */\n\n/**\n * Is an input node's name 'label'.\n *\n * @param {Konva.Node} node A Konva node.\n * @returns {boolean} True if the node's name is 'label'.\n */\nexport function isNodeNameLabel(node) {\n return node.name() === 'label';\n}\n\n/**\n * Is an input node's name 'shape'.\n *\n * @param {Konva.Node} node A Konva node.\n * @returns {boolean} True if the node's name is 'shape'.\n */\nexport function isNodeNameShape(node) {\n return node.name() === 'shape';\n}\n\n/**\n * Is an input node a position node.\n *\n * @param {Konva.Node} node A Konva node.\n * @returns {boolean} True if the node's name is 'position-group'.\n */\nexport function isPositionNode(node) {\n return node.name() === 'position-group';\n}\n\n/**\n * @callback testFn\n * @param {Konva.Node} node The node.\n * @returns {boolean} True if the node passes the test.\n */\n\n/**\n * Get a lambda to check a node's id.\n *\n * @param {string} id The id to check.\n * @returns {testFn} A function to check a node's id.\n */\nexport function isNodeWithId(id) {\n return function (node) {\n return node.id() === id;\n };\n}\n\n/**\n * Draw Debug flag.\n */\nexport const DRAW_DEBUG = false;\n\n/**\n * Get the default anchor shape.\n *\n * @param {number} x The X position.\n * @param {number} y The Y position.\n * @param {string} id The shape id.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse} The default anchor shape.\n */\nexport function getDefaultAnchor(x, y, id, style) {\n const radius = style.applyZoomScale(3);\n const absRadius = {\n x: Math.abs(radius.x),\n y: Math.abs(radius.y)\n };\n return new Konva.Ellipse({\n x: x,\n y: y,\n stroke: '#999',\n fill: 'rgba(100,100,100,0.7',\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n radius: absRadius,\n radiusX: absRadius.x,\n radiusY: absRadius.y,\n name: 'anchor',\n id: id.toString(),\n dragOnTop: false,\n draggable: true,\n visible: false\n });\n}\n\n/**\n * Get the minimum position in a groups' anchors.\n *\n * @param {Konva.Group} group The group that contains anchors.\n * @returns {Point2D|undefined} The minimum position.\n */\nfunction getAnchorMin(group) {\n const anchors = group.find('.anchor');\n if (anchors.length === 0) {\n return undefined;\n }\n let minX = anchors[0].x();\n let minY = anchors[0].y();\n for (let i = 0; i < anchors.length; ++i) {\n minX = Math.min(minX, anchors[i].x());\n minY = Math.min(minY, anchors[i].y());\n }\n\n return new Point2D(minX, minY);\n}\n\n/**\n * Bound a node position.\n *\n * @param {Konva.Node} node The node to bound the position.\n * @param {Point2D} min The minimum position.\n * @param {Point2D} max The maximum position.\n * @returns {boolean} True if the position was corrected.\n */\nfunction boundNodePosition(node, min, max) {\n let changed = false;\n if (node.x() < min.getX()) {\n node.x(min.getX());\n changed = true;\n } else if (node.x() > max.getX()) {\n node.x(max.getX());\n changed = true;\n }\n if (node.y() < min.getY()) {\n node.y(min.getY());\n changed = true;\n } else if (node.y() > max.getY()) {\n node.y(max.getY());\n changed = true;\n }\n return changed;\n}\n\n/**\n * Validate a group position.\n *\n * @param {Scalar2D} stageSize The stage size {x,y}.\n * @param {Konva.Group} group The group to evaluate.\n * @returns {boolean} True if the position was corrected.\n */\nexport function validateGroupPosition(stageSize, group) {\n // if anchors get mixed, width/height can be negative\n const shape = group.getChildren(isNodeNameShape)[0];\n const anchorMin = getAnchorMin(group);\n // handle no anchor: when dragging the label, the editor does\n // not activate\n if (typeof anchorMin === 'undefined') {\n return null;\n }\n\n const min = new Point2D(\n -anchorMin.getX(),\n -anchorMin.getY()\n );\n const max = new Point2D(\n stageSize.x - (anchorMin.getX() + Math.abs(shape.width())),\n stageSize.y - (anchorMin.getY() + Math.abs(shape.height()))\n );\n\n return boundNodePosition(group, min, max);\n}\n\n/**\n * Validate an anchor position.\n *\n * @param {Scalar2D} stageSize The stage size {x,y}.\n * @param {Konva.Shape} anchor The anchor to evaluate.\n * @returns {boolean} True if the position was corrected.\n */\nexport function validateAnchorPosition(stageSize, anchor) {\n const group = anchor.getParent();\n\n const min = new Point2D(\n -group.x(),\n -group.y()\n );\n const max = new Point2D(\n stageSize.x - group.x(),\n stageSize.y - group.y()\n );\n\n return boundNodePosition(anchor, min, max);\n}\n","import {Circle} from '../math/circle';\nimport {Point2D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Style} from '../gui/style';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Circle factory.\n */\nexport class CircleFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'circle-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Set an annotation math shape from input points.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Point2D[]} points The points.\n */\n setAnnotationMathShape(annotation, points) {\n annotation.mathShape = this.#calculateMathShape(points);\n annotation.setTextExpr(this.#getDefaultLabel());\n annotation.updateQuantification();\n }\n\n /**\n * Create a circle shape to be displayed.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Group} The Konva group.\n */\n createShapeGroup(annotation, style) {\n // konva group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.visible(true);\n group.id(annotation.id);\n // konva shape\n group.add(this.#createShape(annotation, style));\n // konva label\n group.add(this.#createLabel(annotation, style));\n // konva shadow (if debug)\n if (DRAW_DEBUG) {\n group.add(this.#getDebugShadow(annotation));\n }\n return group;\n }\n\n /**\n * Get anchors to update a circle shape.\n *\n * @param {Konva.Circle} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const centerX = shape.x();\n const centerY = shape.y();\n const radius = shape.radius();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n centerX - radius, centerY, 'left', style\n ));\n anchors.push(getDefaultAnchor(\n centerX + radius, centerY, 'right', style\n ));\n anchors.push(getDefaultAnchor(\n centerX, centerY + radius, 'bottom', style\n ));\n anchors.push(getDefaultAnchor(\n centerX, centerY - radius, 'top', style\n ));\n return anchors;\n }\n\n /**\n * Constrain anchor movement.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n */\n constrainAnchorMove(anchor) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // find special points\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n\n // update 'self' (undo case) and special points\n switch (anchor.id()) {\n case 'left':\n // block y\n left.y(right.y());\n break;\n case 'right':\n // block y\n right.y(left.y());\n break;\n case 'bottom':\n // block x\n bottom.x(top.x());\n break;\n case 'top':\n // block x\n top.x(bottom.x());\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Update shape and label on anchor move taking the updated\n * annotation as input.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The application style.\n */\n updateShapeGroupOnAnchorMove(annotation, anchor, style) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // update shape and anchors\n this.#updateShape(annotation, anchor, style);\n // update label\n this.updateLabelContent(annotation, group, style);\n // TODO check if linked label...\n this.updateLabelPosition(annotation, group, style);\n // update shadow\n if (DRAW_DEBUG) {\n this.#updateDebugShadow(annotation, group);\n }\n }\n\n /**\n * Update an annotation on anchor move.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Konva.Shape} anchor The anchor.\n */\n updateAnnotationOnAnchorMove(annotation, anchor) {\n // math shape\n const circle = annotation.mathShape;\n const center = new Point2D(\n circle.getCenter().getX(),\n circle.getCenter().getY()\n );\n const anchorPoint = new Point2D(anchor.x(), anchor.y());\n const newRadius = center.getDistance(anchorPoint);\n annotation.mathShape = new Circle(center, newRadius);\n // label position\n // TODO...\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update an annotation on translation (shape move).\n *\n * @param {Annotation} annotation The annotation.\n * @param {object} translation The translation.\n */\n updateAnnotationOnTranslation(annotation, translation) {\n // math shape\n const circle = annotation.mathShape;\n const center = circle.getCenter();\n const newCenter = new Point2D(\n center.getX() + translation.x,\n center.getY() + translation.y\n );\n annotation.mathShape = new Circle(newCenter, circle.getRadius());\n // label position\n const labelPos = annotation.labelPosition;\n if (typeof labelPos !== 'undefined') {\n const newPos = new Point2D(\n labelPos.getX() + translation.x,\n labelPos.getY() + translation.y\n );\n annotation.labelPosition = newPos;\n }\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update the shape label position.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelPosition(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update position\n const labelPosition = this.#getLabelPosition(annotation);\n klabel.position({\n x: labelPosition.getX(),\n y: labelPosition.getY()\n });\n }\n\n /**\n * Update the shape label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelContent(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update text\n const text = annotation.getText();\n const ktext = klabel.getText();\n ktext.setText(text);\n // hide if empty\n klabel.visible(text.length !== 0);\n }\n\n\n /**\n * Calculates the mathematical shape: a circle.\n *\n * @param {Point2D[]} points The points that define the shape.\n * @returns {Circle} The mathematical shape.\n */\n #calculateMathShape(points) {\n // calculate radius\n const a = Math.abs(points[0].getX() - points[1].getX());\n const b = Math.abs(points[0].getY() - points[1].getY());\n const radius = Math.round(Math.sqrt(a * a + b * b));\n // physical shape\n return new Circle(points[0], radius);\n }\n\n /**\n * Get the default labels.\n *\n * @returns {object} The label list.\n */\n #getDefaultLabel() {\n return defaults.labelText.circle;\n }\n\n /**\n * Creates the konva shape.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Circle} The konva shape.\n */\n #createShape(annotation, style) {\n const circle = annotation.mathShape;\n // konva circle\n return new Konva.Circle({\n x: circle.getCenter().getX(),\n y: circle.getCenter().getY(),\n radius: circle.getRadius(),\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n }\n\n /**\n * Get the default annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getDefaultLabelPosition(annotation) {\n const circle = annotation.mathShape;\n const center = circle.getCenter();\n const radius = circle.getRadius();\n return new Point2D(\n center.getX() - radius,\n center.getY() + radius,\n );\n }\n\n /**\n * Get the annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getLabelPosition(annotation) {\n let res = annotation.labelPosition;\n if (typeof res === 'undefined') {\n res = this.#getDefaultLabelPosition(annotation);\n }\n return res;\n }\n\n /**\n * Creates the konva label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Label} The Konva label.\n */\n #createLabel(annotation, style) {\n // konva text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n const labelText = annotation.getText();\n ktext.setText(labelText);\n\n // konva label\n const labelPosition = this.#getLabelPosition(annotation);\n const klabel = new Konva.Label({\n x: labelPosition.getX(),\n y: labelPosition.getY(),\n scale: style.applyZoomScale(1),\n visible: labelText.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n return klabel;\n }\n\n /**\n * Update shape and label on anchor move taking the updated\n * annotation as input.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} _style The application style.\n */\n #updateShape(annotation, anchor, _style) {\n const circle = annotation.mathShape;\n const center = circle.getCenter();\n const radius = circle.getRadius();\n\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const kcircle = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kcircle instanceof Konva.Circle)) {\n return;\n }\n // update shape: just update the radius\n kcircle.radius(radius);\n\n // find anchors\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n\n const swapX = right.x() < left.x() ? -1 : 1;\n const swapY = top.y() < bottom.y() ? 1 : -1;\n\n // update 'self' (undo case) and other anchors\n switch (anchor.id()) {\n case 'left':\n // update self\n left.x(anchor.x());\n // update others\n right.x(center.getX() + swapX * radius);\n bottom.y(center.getY() + radius);\n top.y(center.getY() - radius);\n break;\n case 'right':\n // update self\n right.x(anchor.x());\n // update others\n left.x(center.getX() - swapX * radius);\n bottom.y(center.getY() + radius);\n top.y(center.getY() - radius);\n break;\n case 'bottom':\n // update self\n bottom.y(anchor.y());\n // update others\n left.x(center.getX() - radius);\n right.x(center.getX() + radius);\n top.y(center.getY() - swapY * radius);\n break;\n case 'top':\n // update self\n top.y(anchor.y());\n // update others\n left.x(center.getX() - radius);\n right.x(center.getX() + radius);\n bottom.y(center.getY() + swapY * radius);\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Annotation} annotation The annotation to shadow.\n * @param {Konva.Group} [group] The associated group.\n * @returns {Konva.Group|undefined} The shadow konva group.\n */\n #getDebugShadow(annotation, group) {\n const circle = annotation.mathShape;\n\n // possible group offset\n let offsetX = 0;\n let offsetY = 0;\n if (typeof group !== 'undefined') {\n offsetX = group.x();\n offsetY = group.y();\n }\n const kshadow = new Konva.Group();\n kshadow.name('shadow');\n const regions = circle.getRound();\n for (let i = 0; i < regions.length; ++i) {\n const region = regions[i];\n const minX = region[0][0];\n const minY = region[0][1];\n const maxX = region[1][0];\n const pixelLine = new Konva.Rect({\n x: minX - offsetX,\n y: minY - offsetY,\n width: maxX - minX,\n height: 1,\n fill: 'grey',\n strokeWidth: 0,\n strokeScaleEnabled: false,\n opacity: 0.3,\n name: 'shadow-element'\n });\n kshadow.add(pixelLine);\n }\n return kshadow;\n }\n\n /**\n * Update the debug shadow.\n *\n * @param {Annotation} annotation The annotation to shadow.\n * @param {Konva.Group} group The associated group.\n */\n #updateDebugShadow(annotation, group) {\n const kshadow = group.getChildren(function (node) {\n return node.name() === 'shadow';\n })[0];\n if (typeof kshadow !== 'undefined') {\n // remove previous\n kshadow.destroy();\n // add new\n group.add(this.#getDebugShadow(annotation, group));\n }\n }\n\n} // class CircleFactory\n","import {i18n} from '../utils/i18n';\nimport {getStats} from './stats';\nimport {Index} from './index';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mulitply the three inputs if the last two are not null.\n *\n * @param {number} a The first input.\n * @param {number} b The second input.\n * @param {number} c The third input.\n * @returns {number} The multiplication of the three inputs or\n * null if one of the last two is null.\n */\nfunction mulABC(a, b, c) {\n let res = null;\n if (b !== null && c !== null) {\n res = a * b * c;\n }\n return res;\n}\n\n/**\n * Ellipse shape.\n */\nexport class Ellipse {\n\n /**\n * Ellipse centre.\n *\n * @type {Point2D}\n */\n #centre;\n\n /**\n * Ellipse horizontal radius.\n *\n * @type {number}\n */\n #a;\n\n /**\n * Ellipse vertical radius.\n *\n * @type {number}\n */\n #b;\n\n /**\n * @param {Point2D} centre A Point2D representing the centre\n * of the ellipse.\n * @param {number} a The radius of the ellipse on the horizontal axe.\n * @param {number} b The radius of the ellipse on the vertical axe.\n */\n constructor(centre, a, b) {\n this.#centre = centre;\n this.#a = a;\n this.#b = b;\n }\n\n /**\n * Get the centre (point) of the ellipse.\n *\n * @returns {Point2D} The center (point) of the ellipse.\n */\n getCenter() {\n return this.#centre;\n }\n\n /**\n * Get the radius of the ellipse on the horizontal axe.\n *\n * @returns {number} The radius of the ellipse on the horizontal axe.\n */\n getA() {\n return this.#a;\n }\n\n /**\n * Get the radius of the ellipse on the vertical axe.\n *\n * @returns {number} The radius of the ellipse on the vertical axe.\n */\n getB() {\n return this.#b;\n }\n\n /**\n * Check for equality.\n *\n * @param {Ellipse} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getCenter().equals(rhs.getCenter()) &&\n this.getA() === rhs.getA() &&\n this.getB() === rhs.getB();\n }\n\n /**\n * Get the surface of the ellipse.\n *\n * @returns {number} The surface of the ellipse.\n */\n getSurface() {\n return Math.PI * this.getA() * this.getB();\n }\n\n /**\n * Get the surface of the ellipse according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The surface of the ellipse multiplied by the given\n * spacing or null for null spacings.\n */\n getWorldSurface(spacing2D) {\n return mulABC(this.getSurface(), spacing2D.x, spacing2D.y);\n }\n\n /**\n * Get the rounded limits of the ellipse.\n *\n * See: {@link https://en.wikipedia.org/wiki/Ellipse#Standard_equation}.\n *\n * Ellipse formula: `x*x / a*a + y*y / b*b = 1`.\n *\n * Implies: `y = (+-)(b/a) * sqrt(a*a - x*x)`.\n *\n * @returns {number[][][]} The rounded limits:\n * list of [x, y] pairs (min, max).\n */\n getRound() {\n const centerX = this.getCenter().getX();\n const centerY = this.getCenter().getY();\n const radiusX = this.getA();\n const radiusY = this.getB();\n const radiusRatio = radiusX / radiusY;\n const rySquare = Math.pow(radiusY, 2);\n // Y bounds\n const minY = centerY - radiusY;\n const maxY = centerY + radiusY;\n const regions = [];\n // loop through lines and store limits\n for (let y = minY; y < maxY; ++y) {\n const diff = rySquare - Math.pow(y - centerY, 2);\n // remove small values (possibly negative)\n if (Math.abs(diff) < 1e-7) {\n continue;\n }\n const transX = radiusRatio * Math.sqrt(diff);\n // remove small values\n if (transX < 0.5) {\n continue;\n }\n regions.push([\n [Math.round(centerX - transX), Math.round(y)],\n [Math.round(centerX + transX), Math.round(y)]\n ]);\n }\n return regions;\n }\n\n /**\n * Quantify an ellipse according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {object} A quantification object.\n */\n quantify(viewController, flags) {\n const quant = {};\n // shape quantification\n const spacing2D = viewController.get2DSpacing();\n quant.a = {\n value: this.getA() * spacing2D.x,\n unit: i18n.t('unit.mm')\n };\n quant.b = {\n value: this.getB() * spacing2D.y,\n unit: i18n.t('unit.mm')\n };\n const surface = this.getWorldSurface(spacing2D);\n if (surface !== null) {\n quant.surface = {value: surface / 100, unit: i18n.t('unit.cm2')};\n }\n\n // pixel values quantification\n if (viewController.canQuantifyImage()) {\n const regions = this.getRound();\n if (regions.length !== 0) {\n const values = viewController.getImageVariableRegionValues(regions);\n const unit = viewController.getPixelUnit();\n const quantif = getStats(values, flags);\n quant.min = {value: quantif.min, unit: unit};\n quant.max = {value: quantif.max, unit: unit};\n quant.mean = {value: quantif.mean, unit: unit};\n quant.stdDev = {value: quantif.stdDev, unit: unit};\n if (typeof quantif.median !== 'undefined') {\n quant.median = {value: quantif.median, unit: unit};\n }\n if (typeof quantif.p25 !== 'undefined') {\n quant.p25 = {value: quantif.p25, unit: unit};\n }\n if (typeof quantif.p75 !== 'undefined') {\n quant.p75 = {value: quantif.p75, unit: unit};\n }\n }\n }\n\n // return\n return quant;\n }\n\n} // Ellipse class\n\n/**\n * Get the indices that form a ellpise.\n *\n * @param {Index} center The ellipse center.\n * @param {number[]} radius The 2 ellipse radiuses.\n * @param {number[]} dir The 2 ellipse directions.\n * @returns {Index[]} The indices of the ellipse.\n */\nexport function getEllipseIndices(center, radius, dir) {\n const centerValues = center.getValues();\n // keep all values for possible extra dimensions\n const values = centerValues.slice();\n const indices = [];\n const radiusI = radius[0];\n const radiusJ = radius[1];\n const radiusRatio = radiusI / radiusJ;\n const radiusJ2 = Math.pow(radiusJ, 2);\n const di = dir[0];\n const dj = dir[1];\n // deduce 4 positions from top right\n for (let j = 0; j < radiusJ; ++j) {\n // right triangle formed by radiuses, j and len\n // ellipse: i*i / a*a + j*j / b*b = 1\n // -> i = a/b * sqrt(b*b - j*j)\n const len = Math.round(\n radiusRatio * Math.sqrt(radiusJ2 - Math.pow(j, 2)));\n const jmax = centerValues[dj] + j;\n const jmin = centerValues[dj] - j;\n for (let i = 0; i < len; ++i) {\n const imax = centerValues[di] + i;\n const imin = centerValues[di] - i;\n\n // right\n values[di] = imax;\n // right - top\n values[dj] = jmax;\n indices.push(new Index(values.slice()));\n // right - bottom\n if (jmin !== jmax) {\n values[dj] = jmin;\n indices.push(new Index(values.slice()));\n }\n\n // left\n if (imin !== imax) {\n values[di] = imin;\n // left - top\n values[dj] = jmax;\n indices.push(new Index(values.slice()));\n // left - bottom\n if (jmin !== jmax) {\n values[dj] = jmin;\n indices.push(new Index(values.slice()));\n }\n }\n }\n }\n return indices;\n}\n","import {Ellipse} from '../math/ellipse';\nimport {Point2D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Style} from '../gui/style';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Ellipse factory.\n */\nexport class EllipseFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'ellipse-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Set an annotation math shape from input points.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Point2D[]} points The points.\n */\n setAnnotationMathShape(annotation, points) {\n annotation.mathShape = this.#calculateMathShape(points);\n annotation.setTextExpr(this.#getDefaultLabel());\n annotation.updateQuantification();\n }\n\n /**\n * Create an ellipse shape to be displayed.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Group} The Konva group.\n */\n createShapeGroup(annotation, style) {\n // konva group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.visible(true);\n group.id(annotation.id);\n // konva shape\n group.add(this.#createShape(annotation, style));\n // konva label\n group.add(this.#createLabel(annotation, style));\n // konva shadow (if debug)\n if (DRAW_DEBUG) {\n group.add(this.#getDebugShadow(annotation));\n }\n return group;\n }\n\n /**\n * Get anchors to update a ellipse shape.\n *\n * @param {Konva.Ellipse} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const centerX = shape.x();\n const centerY = shape.y();\n const radius = shape.radius();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n centerX - radius.x, centerY, 'left', style\n ));\n anchors.push(getDefaultAnchor(\n centerX + radius.x, centerY, 'right', style\n ));\n anchors.push(getDefaultAnchor(\n centerX, centerY + radius.y, 'bottom', style\n ));\n anchors.push(getDefaultAnchor(\n centerX, centerY - radius.y, 'top', style\n ));\n return anchors;\n }\n\n /**\n * Constrain anchor movement.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n */\n constrainAnchorMove(anchor) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // find special points\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n\n // update 'self' (undo case) and special points\n switch (anchor.id()) {\n case 'left':\n // block y\n left.y(right.y());\n break;\n case 'right':\n // block y\n right.y(left.y());\n break;\n case 'bottom':\n // block x\n bottom.x(top.x());\n break;\n case 'top':\n // block x\n top.x(bottom.x());\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Update shape and label on anchor move taking the updated\n * annotation as input.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The application style.\n */\n updateShapeGroupOnAnchorMove(annotation, anchor, style) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // update shape and anchors\n this.#updateShape(annotation, anchor, style);\n // update label\n this.updateLabelContent(annotation, group, style);\n // TODO check if linked label...\n this.updateLabelPosition(annotation, group, style);\n // update shadow\n if (DRAW_DEBUG) {\n this.#updateDebugShadow(annotation, group);\n }\n }\n\n /**\n * Update an annotation on anchor move.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Konva.Shape} anchor The anchor.\n */\n updateAnnotationOnAnchorMove(annotation, anchor) {\n // math shape\n const ellipse = annotation.mathShape;\n const center = ellipse.getCenter();\n let radiusX = ellipse.getA();\n let radiusY = ellipse.getB();\n\n // update 'self' (undo case) and special points\n switch (anchor.id()) {\n case 'left':\n radiusX = center.getX() - anchor.x();\n break;\n case 'right':\n radiusX = anchor.x() - center.getX();\n break;\n case 'bottom':\n radiusY = anchor.y() - center.getY();\n break;\n case 'top':\n radiusY = center.getY() - anchor.y();\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n\n annotation.mathShape = new Ellipse(\n center, Math.abs(radiusX), Math.abs(radiusY));\n // label position\n // TODO...\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update an annotation on translation (shape move).\n *\n * @param {Annotation} annotation The annotation.\n * @param {object} translation The translation.\n */\n updateAnnotationOnTranslation(annotation, translation) {\n // math shape\n const ellipse = annotation.mathShape;\n const center = ellipse.getCenter();\n const newCenter = new Point2D(\n center.getX() + translation.x,\n center.getY() + translation.y\n );\n annotation.mathShape = new Ellipse(\n newCenter, ellipse.getA(), ellipse.getB());\n // label position\n const labelPos = annotation.labelPosition;\n if (typeof labelPos !== 'undefined') {\n const newPos = new Point2D(\n labelPos.getX() + translation.x,\n labelPos.getY() + translation.y\n );\n annotation.labelPosition = newPos;\n }\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update the shape label position.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelPosition(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update position\n const labelPosition = this.#getLabelPosition(annotation);\n klabel.position({\n x: labelPosition.getX(),\n y: labelPosition.getY()\n });\n }\n\n /**\n * Update the shape label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelContent(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update text\n const text = annotation.getText();\n const ktext = klabel.getText();\n ktext.setText(text);\n // hide if empty\n klabel.visible(text.length !== 0);\n }\n\n /**\n * Calculates the mathematical shape: an ellipse.\n *\n * @param {Point2D[]} points The points that define the shape.\n * @returns {Ellipse} The mathematical shape.\n */\n #calculateMathShape(points) {\n // calculate radius\n const a = Math.abs(points[0].getX() - points[1].getX());\n const b = Math.abs(points[0].getY() - points[1].getY());\n // physical shape\n return new Ellipse(points[0], a, b);\n }\n\n /**\n * Get the default labels.\n *\n * @returns {object} The label list.\n */\n #getDefaultLabel() {\n return defaults.labelText.ellipse;\n }\n\n /**\n * Creates the konva shape.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Ellipse} The konva shape.\n */\n #createShape(annotation, style) {\n const ellipse = annotation.mathShape;\n const center = ellipse.getCenter();\n const radius = {\n x: ellipse.getA(),\n y: ellipse.getB()\n };\n // konva circle\n return new Konva.Ellipse({\n x: center.getX(),\n y: center.getY(),\n radius: radius,\n radiusX: radius.x,\n radiusY: radius.y,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n }\n\n /**\n * Get the default annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getDefaultLabelPosition(annotation) {\n const ellipse = annotation.mathShape;\n const center = ellipse.getCenter();\n return new Point2D(\n center.getX() - ellipse.getA(),\n center.getY() + ellipse.getB()\n );\n }\n\n /**\n * Get the annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getLabelPosition(annotation) {\n let res = annotation.labelPosition;\n if (typeof res === 'undefined') {\n res = this.#getDefaultLabelPosition(annotation);\n }\n return res;\n }\n\n /**\n * Creates the konva label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Label} The Konva label.\n */\n #createLabel(annotation, style) {\n // konva text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n const labelText = annotation.getText();\n ktext.setText(labelText);\n\n // konva label\n const labelPosition = this.#getLabelPosition(annotation);\n const klabel = new Konva.Label({\n x: labelPosition.getX(),\n y: labelPosition.getY(),\n scale: style.applyZoomScale(1),\n visible: labelText.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n return klabel;\n }\n\n /**\n * Update shape on anchor move.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} _style The application style.\n */\n #updateShape(annotation, anchor, _style) {\n const ellipse = annotation.mathShape;\n const center = ellipse.getCenter();\n const radiusX = ellipse.getA();\n const radiusY = ellipse.getB();\n\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const kellipse = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kellipse instanceof Konva.Ellipse)) {\n return;\n }\n // update shape: just update radius\n kellipse.radius({\n x: radiusX,\n y: radiusY\n });\n\n // find anchors\n const left = group.getChildren(function (node) {\n return node.id() === 'left';\n })[0];\n const right = group.getChildren(function (node) {\n return node.id() === 'right';\n })[0];\n const bottom = group.getChildren(function (node) {\n return node.id() === 'bottom';\n })[0];\n const top = group.getChildren(function (node) {\n return node.id() === 'top';\n })[0];\n\n const swapX = right.x() < left.x() ? -1 : 1;\n const swapY = top.y() < bottom.y() ? 1 : -1;\n\n // update 'self' (undo case) and other anchors\n switch (anchor.id()) {\n case 'left':\n // update self\n left.x(anchor.x());\n // update others\n right.x(center.getX() + swapX * radiusX);\n bottom.y(center.getY() + radiusY);\n top.y(center.getY() - radiusY);\n break;\n case 'right':\n // update self\n right.x(anchor.x());\n // update others\n left.x(center.getX() - swapX * radiusX);\n bottom.y(center.getY() + radiusY);\n top.y(center.getY() - radiusY);\n break;\n case 'bottom':\n // update self\n bottom.y(anchor.y());\n // update others\n left.x(center.getX() - radiusX);\n right.x(center.getX() + radiusX);\n top.y(center.getY() - swapY * radiusY);\n break;\n case 'top':\n // update self\n top.y(anchor.y());\n // update others\n left.x(center.getX() - radiusX);\n right.x(center.getX() + radiusX);\n bottom.y(center.getY() + swapY * radiusY);\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Annotation} annotation The annotation to shadow.\n * @param {Konva.Group} [group] The associated group.\n * @returns {Konva.Group|undefined} The shadow konva group.\n */\n #getDebugShadow(annotation, group) {\n const ellipse = annotation.mathShape;\n\n // possible group offset\n let offsetX = 0;\n let offsetY = 0;\n if (typeof group !== 'undefined') {\n offsetX = group.x();\n offsetY = group.y();\n }\n const kshadow = new Konva.Group();\n kshadow.name('shadow');\n const regions = ellipse.getRound();\n for (let i = 0; i < regions.length; ++i) {\n const region = regions[i];\n const minX = region[0][0];\n const minY = region[0][1];\n const maxX = region[1][0];\n const pixelLine = new Konva.Rect({\n x: minX - offsetX,\n y: minY - offsetY,\n width: maxX - minX,\n height: 1,\n fill: 'grey',\n strokeWidth: 0,\n strokeScaleEnabled: false,\n opacity: 0.3,\n name: 'shadow-element'\n });\n kshadow.add(pixelLine);\n }\n return kshadow;\n }\n\n /**\n * Update the debug shadow.\n *\n * @param {Annotation} annotation The annotation to shadow.\n * @param {Konva.Group} group The associated group.\n */\n #updateDebugShadow(annotation, group) {\n const kshadow = group.getChildren(function (node) {\n return node.name() === 'shadow';\n })[0];\n if (typeof kshadow !== 'undefined') {\n // remove previous\n kshadow.destroy();\n // add new\n group.add(this.#getDebugShadow(annotation, group));\n }\n }\n\n} // class EllipseFactory\n","import {Point2D} from './point';\nimport {getStats} from './stats';\nimport {i18n} from '../utils/i18n';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mulitply the three inputs if the last two are not null.\n *\n * @param {number} a The first input.\n * @param {number} b The second input.\n * @param {number} c The third input.\n * @returns {number} The multiplication of the three inputs or\n * null if one of the last two is null.\n */\nfunction mulABC(a, b, c) {\n let res = null;\n if (b !== null && c !== null) {\n res = a * b * c;\n }\n return res;\n}\n\n/**\n * Rectangle shape.\n */\nexport class Rectangle {\n\n /**\n * Rectangle begin point.\n *\n * @type {Point2D}\n */\n #begin;\n\n /**\n * Rectangle end point.\n *\n * @type {Point2D}\n */\n #end;\n\n /**\n * @param {Point2D} begin A Point2D representing the beginning\n * of the rectangle.\n * @param {Point2D} end A Point2D representing the end\n * of the rectangle.\n */\n constructor(begin, end) {\n this.#begin = new Point2D(\n Math.min(begin.getX(), end.getX()),\n Math.min(begin.getY(), end.getY())\n );\n this.#end = new Point2D(\n Math.max(begin.getX(), end.getX()),\n Math.max(begin.getY(), end.getY())\n );\n }\n\n /**\n * Get the begin point of the rectangle.\n *\n * @returns {Point2D} The begin point of the rectangle.\n */\n getBegin() {\n return this.#begin;\n }\n\n /**\n * Get the end point of the rectangle.\n *\n * @returns {Point2D} The end point of the rectangle.\n */\n getEnd() {\n return this.#end;\n }\n\n /**\n * Check for equality.\n *\n * @param {Rectangle} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getBegin().equals(rhs.getBegin()) &&\n this.getEnd().equals(rhs.getEnd());\n }\n\n /**\n * Get the surface of the rectangle.\n *\n * @returns {number} The surface of the rectangle.\n */\n getSurface() {\n const begin = this.getBegin();\n const end = this.getEnd();\n return Math.abs(end.getX() - begin.getX()) *\n Math.abs(end.getY() - begin.getY());\n }\n\n /**\n * Get the surface of the rectangle according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The surface of the rectangle multiplied by the given\n * spacing or null for null spacings.\n */\n getWorldSurface(spacing2D) {\n return mulABC(this.getSurface(), spacing2D.x, spacing2D.y);\n }\n\n /**\n * Get the real width of the rectangle.\n *\n * @returns {number} The real width of the rectangle.\n */\n getRealWidth() {\n return this.getEnd().getX() - this.getBegin().getX();\n }\n\n /**\n * Get the real height of the rectangle.\n *\n * @returns {number} The real height of the rectangle.\n */\n getRealHeight() {\n return this.getEnd().getY() - this.getBegin().getY();\n }\n\n /**\n * Get the width of the rectangle.\n *\n * @returns {number} The width of the rectangle.\n */\n getWidth() {\n return Math.abs(this.getRealWidth());\n }\n\n /**\n * Get the height of the rectangle.\n *\n * @returns {number} The height of the rectangle.\n */\n getHeight() {\n return Math.abs(this.getRealHeight());\n }\n\n /**\n * Get the rounded limits of the rectangle.\n *\n * @returns {object} The rounded limits as {min, max} (Point2D).\n */\n getRound() {\n const roundBegin = new Point2D(\n Math.round(this.getBegin().getX()),\n Math.round(this.getBegin().getY())\n );\n const roundEnd = new Point2D(\n Math.round(this.getEnd().getX()),\n Math.round(this.getEnd().getY())\n );\n return {\n min: roundBegin,\n max: roundEnd\n };\n }\n\n /**\n * Quantify a rectangle according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @param {string[]} flags A list of stat values to calculate.\n * @returns {object} A quantification object.\n */\n quantify(viewController, flags) {\n const quant = {};\n // shape quantification\n const spacing2D = viewController.get2DSpacing();\n quant.width = {\n value: this.getWidth() * spacing2D.x,\n unit: i18n.t('unit.mm')\n };\n quant.height = {\n value: this.getHeight() * spacing2D.y,\n unit: i18n.t('unit.mm')\n };\n const surface = this.getWorldSurface(spacing2D);\n if (surface !== null) {\n quant.surface = {value: surface / 100, unit: i18n.t('unit.cm2')};\n }\n\n // pixel values quantification\n if (viewController.canQuantifyImage()) {\n const round = this.getRound();\n const values = viewController.getImageRegionValues(round.min, round.max);\n const unit = viewController.getPixelUnit();\n const quantif = getStats(values, flags);\n quant.min = {value: quantif.min, unit: unit};\n quant.max = {value: quantif.max, unit: unit};\n quant.mean = {value: quantif.mean, unit: unit};\n quant.stdDev = {value: quantif.stdDev, unit: unit};\n if (typeof quantif.median !== 'undefined') {\n quant.median = {value: quantif.median, unit: unit};\n }\n if (typeof quantif.p25 !== 'undefined') {\n quant.p25 = {value: quantif.p25, unit: unit};\n }\n if (typeof quantif.p75 !== 'undefined') {\n quant.p75 = {value: quantif.p75, unit: unit};\n }\n }\n\n // return\n return quant;\n }\n\n} // Rectangle class\n","import {Rectangle} from '../math/rectangle';\nimport {Point2D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Style} from '../gui/style';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Rectangle factory.\n */\nexport class RectangleFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'rectangle-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n\n /**\n * Set an annotation math shape from input points.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Point2D[]} points The points.\n */\n setAnnotationMathShape(annotation, points) {\n annotation.mathShape = this.#calculateMathShape(points);\n annotation.setTextExpr(this.#getDefaultLabel());\n annotation.updateQuantification();\n }\n\n /**\n * Create a rectangle shape to be displayed.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Group} The Konva group.\n */\n createShapeGroup(annotation, style) {\n // konva group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.visible(true);\n group.id(annotation.id);\n // konva shape\n group.add(this.#createShape(annotation, style));\n // konva label\n group.add(this.#createLabel(annotation, style));\n // konva shadow (if debug)\n if (DRAW_DEBUG) {\n group.add(this.#getDebugShadow(annotation));\n }\n return group;\n }\n\n /**\n * Get anchors to update a rectangle shape.\n *\n * @param {Konva.Rect} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const rectX = shape.x();\n const rectY = shape.y();\n const rectWidth = shape.width();\n const rectHeight = shape.height();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n rectX, rectY, 'topLeft', style\n ));\n anchors.push(getDefaultAnchor(\n rectX + rectWidth, rectY, 'topRight', style\n ));\n anchors.push(getDefaultAnchor(\n rectX + rectWidth, rectY + rectHeight, 'bottomRight', style\n ));\n anchors.push(getDefaultAnchor(\n rectX, rectY + rectHeight, 'bottomLeft', style\n ));\n return anchors;\n }\n\n /**\n * Constrain anchor movement.\n *\n * @param {Konva.Ellipse} _anchor The active anchor.\n */\n constrainAnchorMove(_anchor) {\n // no constraints\n }\n\n /**\n * Update shape and label on anchor move taking the updated\n * annotation as input.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The application style.\n */\n updateShapeGroupOnAnchorMove(annotation, anchor, style) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // update shape and anchors\n this.#updateShape(annotation, anchor, style);\n // update label\n this.updateLabelContent(annotation, group, style);\n // TODO check if linked label...\n this.updateLabelPosition(annotation, group, style);\n // update shadow\n if (DRAW_DEBUG) {\n this.#updateDebugShadow(annotation, group);\n }\n }\n\n /**\n * Update an annotation on anchor move.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Konva.Shape} anchor The anchor.\n */\n updateAnnotationOnAnchorMove(annotation, anchor) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // find anchors\n const topLeft = group.getChildren(function (node) {\n return node.id() === 'topLeft';\n })[0];\n const bottomRight = group.getChildren(function (node) {\n return node.id() === 'bottomRight';\n })[0];\n\n const pointTopLeft = new Point2D(\n topLeft.x(),\n topLeft.y()\n );\n const pointBottomRight = new Point2D(\n bottomRight.x(),\n bottomRight.y()\n );\n // new rect\n annotation.mathShape = new Rectangle(pointTopLeft, pointBottomRight);\n // label position\n // TODO...\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update an annotation on translation (shape move).\n *\n * @param {Annotation} annotation The annotation.\n * @param {object} translation The translation.\n */\n updateAnnotationOnTranslation(annotation, translation) {\n // math shape\n const rectangle = annotation.mathShape;\n const begin = rectangle.getBegin();\n const newBegin = new Point2D(\n begin.getX() + translation.x,\n begin.getY() + translation.y\n );\n const end = rectangle.getEnd();\n const newEnd = new Point2D(\n end.getX() + translation.x,\n end.getY() + translation.y\n );\n annotation.mathShape = new Rectangle(newBegin, newEnd);\n // label position\n const labelPos = annotation.labelPosition;\n if (typeof labelPos !== 'undefined') {\n const newPos = new Point2D(\n labelPos.getX() + translation.x,\n labelPos.getY() + translation.y\n );\n annotation.labelPosition = newPos;\n }\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update the shape label position.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelPosition(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update position\n const labelPosition = this.#getLabelPosition(annotation);\n klabel.position({\n x: labelPosition.getX(),\n y: labelPosition.getY()\n });\n }\n\n /**\n * Update the shape label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelContent(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update text\n const text = annotation.getText();\n const ktext = klabel.getText();\n ktext.setText(text);\n // hide if empty\n klabel.visible(text.length !== 0);\n }\n\n\n /**\n * Calculates the mathematical rectangle: a rectangle.\n *\n * @param {Point2D[]} points The points that define the shape.\n * @returns {Rectangle} The mathematical shape.\n */\n #calculateMathShape(points) {\n return new Rectangle(points[0], points[1]);\n }\n\n /**\n * Get the default labels.\n *\n * @returns {object} The label list.\n */\n #getDefaultLabel() {\n return defaults.labelText.rectangle;\n }\n\n /**\n * Creates the konva shape.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Rect} The konva shape.\n */\n #createShape(annotation, style) {\n const rectangle = annotation.mathShape;\n // konva rect\n return new Konva.Rect({\n x: rectangle.getBegin().getX(),\n y: rectangle.getBegin().getY(),\n width: rectangle.getWidth(),\n height: rectangle.getHeight(),\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n }\n\n /**\n * Get the default annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getDefaultLabelPosition(annotation) {\n const rectangle = annotation.mathShape;\n return new Point2D(\n rectangle.getBegin().getX(),\n rectangle.getEnd().getY(),\n );\n }\n\n /**\n * Get the annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getLabelPosition(annotation) {\n let res = annotation.labelPosition;\n if (typeof res === 'undefined') {\n res = this.#getDefaultLabelPosition(annotation);\n }\n return res;\n }\n\n /**\n * Creates the konva label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Label} The Konva label.\n */\n #createLabel(annotation, style) {\n // konva text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n const labelText = annotation.getText();\n ktext.setText(labelText);\n\n // konva label\n const labelPosition = this.#getLabelPosition(annotation);\n const klabel = new Konva.Label({\n x: labelPosition.getX(),\n y: labelPosition.getY(),\n scale: style.applyZoomScale(1),\n visible: labelText.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n return klabel;\n }\n\n /**\n * Update shape on anchor move.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} _style The application style.\n */\n #updateShape(annotation, anchor, _style) {\n const rectangle = annotation.mathShape;\n const begin = rectangle.getBegin();\n\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const krect = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(krect instanceof Konva.Rect)) {\n return;\n }\n // update shape\n krect.position({\n x: begin.getX(),\n y: begin.getY()\n });\n krect.size({\n width: rectangle.getWidth(),\n height: rectangle.getHeight()\n });\n\n // find anchors\n const topLeft = group.getChildren(function (node) {\n return node.id() === 'topLeft';\n })[0];\n const topRight = group.getChildren(function (node) {\n return node.id() === 'topRight';\n })[0];\n const bottomRight = group.getChildren(function (node) {\n return node.id() === 'bottomRight';\n })[0];\n const bottomLeft = group.getChildren(function (node) {\n return node.id() === 'bottomLeft';\n })[0];\n\n // update 'self' (undo case) and other anchors\n switch (anchor.id()) {\n case 'topLeft':\n // update self\n topLeft.x(anchor.x());\n topLeft.y(anchor.y());\n // update others\n topRight.y(anchor.y());\n bottomLeft.x(anchor.x());\n break;\n case 'topRight':\n // update self\n topRight.x(anchor.x());\n topRight.y(anchor.y());\n // update others\n topLeft.y(anchor.y());\n bottomRight.x(anchor.x());\n break;\n case 'bottomRight':\n // update self\n bottomRight.x(anchor.x());\n bottomRight.y(anchor.y());\n // update others\n bottomLeft.y(anchor.y());\n topRight.x(anchor.x());\n break;\n case 'bottomLeft':\n // update self\n bottomLeft.x(anchor.x());\n bottomLeft.y(anchor.y());\n // update others\n bottomRight.y(anchor.y());\n topLeft.x(anchor.x());\n break;\n default :\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Annotation} annotation The anootation to shadow.\n * @param {Konva.Group} [_group] The associated group.\n * @returns {Konva.Rect} The shadow konva rect.\n */\n #getDebugShadow(annotation, _group) {\n const rectangle = annotation.mathShape;\n const round = rectangle.getRound();\n const rWidth = round.max.getX() - round.min.getX();\n const rHeight = round.max.getY() - round.min.getY();\n return new Konva.Rect({\n x: round.min.getX(),\n y: round.min.getY(),\n width: rWidth,\n height: rHeight,\n fill: 'grey',\n strokeWidth: 0,\n strokeScaleEnabled: false,\n opacity: 0.3,\n name: 'shadow'\n });\n }\n\n /**\n * Update the debug shadow.\n *\n * @param {Annotation} annotation The annotation to shadow.\n * @param {Konva.Group} group The associated group.\n */\n #updateDebugShadow(annotation, group) {\n const kshadow = group.getChildren(function (node) {\n return node.name() === 'shadow';\n })[0];\n if (typeof kshadow !== 'undefined') {\n // remove previous\n kshadow.destroy();\n // add new\n group.add(this.#getDebugShadow(annotation, group));\n }\n }\n\n} // class RectangleFactory\n","import {Point2D} from './point';\nimport {i18n} from '../utils/i18n';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Scalar2D} from './scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * Line shape.\n */\nexport class Line {\n\n /**\n * Line begin point.\n *\n * @type {Point2D}\n */\n #begin;\n\n /**\n * Line end point.\n *\n * @type {Point2D}\n */\n #end;\n\n /**\n * @param {Point2D} begin A Point2D representing the beginning\n * of the line.\n * @param {Point2D} end A Point2D representing the end of the line.\n */\n constructor(begin, end) {\n this.#begin = begin;\n this.#end = end;\n }\n\n /**\n * Get the begin point of the line.\n *\n * @returns {Point2D} The beginning point of the line.\n */\n getBegin() {\n return this.#begin;\n }\n\n /**\n * Get the end point of the line.\n *\n * @returns {Point2D} The ending point of the line.\n */\n getEnd() {\n return this.#end;\n }\n\n /**\n * Check for equality.\n *\n * @param {Line} rhs The object to compare to.\n * @returns {boolean} True if both objects are equal.\n */\n equals(rhs) {\n return rhs !== null &&\n this.getBegin().equals(rhs.getBegin()) &&\n this.getEnd().equals(rhs.getEnd());\n }\n\n /**\n * Get the line delta in the X direction.\n *\n * @returns {number} The delta in the X direction.\n */\n getDeltaX() {\n return this.getEnd().getX() - this.getBegin().getX();\n }\n\n /**\n * Get the line delta in the Y direction.\n *\n * @returns {number} The delta in the Y direction.\n */\n getDeltaY() {\n return this.getEnd().getY() - this.getBegin().getY();\n }\n\n /**\n * Get the length of the line.\n *\n * @returns {number} The length of the line.\n */\n getLength() {\n return Math.sqrt(\n this.getDeltaX() * this.getDeltaX() +\n this.getDeltaY() * this.getDeltaY()\n );\n }\n\n /**\n * Get the length of the line according to a spacing.\n *\n * @param {Scalar2D} spacing2D The 2D spacing.\n * @returns {number} The length of the line with spacing\n * or null for null spacings.\n */\n getWorldLength(spacing2D) {\n let wlen = null;\n if (spacing2D !== null) {\n const dxs = this.getDeltaX() * spacing2D.x;\n const dys = this.getDeltaY() * spacing2D.y;\n wlen = Math.sqrt(dxs * dxs + dys * dys);\n }\n return wlen;\n }\n\n /**\n * Get the mid point of the line.\n *\n * @returns {Point2D} The mid point of the line.\n */\n getMidpoint() {\n return new Point2D(\n (this.getBegin().getX() + this.getEnd().getX()) / 2,\n (this.getBegin().getY() + this.getEnd().getY()) / 2\n );\n }\n\n /**\n * Get the slope of the line.\n *\n * @returns {number} The slope of the line.\n */\n getSlope() {\n return this.getDeltaY() / this.getDeltaX();\n }\n\n /**\n * Get the intercept of the line.\n *\n * @returns {number} The slope of the line.\n */\n getIntercept() {\n return (\n this.getEnd().getX() * this.getBegin().getY() -\n this.getBegin().getX() * this.getEnd().getY()\n ) / this.getDeltaX();\n }\n\n /**\n * Get the inclination of the line.\n *\n * @returns {number} The inclination of the line.\n */\n getInclination() {\n // tan(theta) = slope\n const angle =\n Math.atan2(this.getDeltaY(), this.getDeltaX()) * 180 / Math.PI;\n // shift?\n return 180 - angle;\n }\n\n /**\n * Quantify a line according to view information.\n *\n * @param {ViewController} viewController The associated view controller.\n * @returns {object} A quantification object.\n */\n quantify(viewController) {\n const quant = {};\n // length\n const spacing2D = viewController.get2DSpacing();\n const length = this.getWorldLength(spacing2D);\n if (length !== null) {\n quant.length = {value: length, unit: i18n.t('unit.mm')};\n }\n // return\n return quant;\n }\n\n} // Line class\n\n/**\n * Get the angle between two lines in degree.\n *\n * @param {Line} line0 The first line.\n * @param {Line} line1 The second line.\n * @returns {number} The angle.\n */\nexport function getAngle(line0, line1) {\n const dx0 = line0.getDeltaX();\n const dy0 = line0.getDeltaY();\n const dx1 = line1.getDeltaX();\n const dy1 = line1.getDeltaY();\n // dot = ||a||*||b||*cos(theta)\n const dot = dx0 * dx1 + dy0 * dy1;\n // cross = ||a||*||b||*sin(theta)\n const det = dx0 * dy1 - dy0 * dx1;\n // tan = sin / cos\n const angle = Math.atan2(det, dot) * 180 / Math.PI;\n // complementary angle\n // shift?\n return 360 - (180 - angle);\n}\n\n/**\n * Get a perpendicular line to an input one.\n *\n * @param {Line} line The line to be perpendicular to.\n * @param {Point2D} point The middle point of the perpendicular line.\n * @param {number} length The length of the perpendicular line.\n * @returns {object} A perpendicular line.\n */\nexport function getPerpendicularLine(line, point, length) {\n // begin point\n let beginX = 0;\n let beginY = 0;\n // end point\n let endX = 0;\n let endY = 0;\n\n // check slope:\n // 0 -> horizontal\n // Infinite -> vertical (a/Infinite = 0)\n if (line.getSlope() !== 0) {\n // a0 * a1 = -1\n const slope = -1 / line.getSlope();\n // y0 = a1*x0 + b1 -> b1 = y0 - a1*x0\n const intercept = point.getY() - slope * point.getX();\n\n // 1. (x - x0)^2 + (y - y0)^2 = d^2\n // 2. a = (y - y0) / (x - x0) -> y = a*(x - x0) + y0\n // -> (x - x0)^2 + m^2 * (x - x0)^2 = d^2\n // -> x = x0 +- d / sqrt(1+m^2)\n\n // length is the distance between begin and end,\n // point is half way between both -> d = length / 2\n const dx = length / (2 * Math.sqrt(1 + slope * slope));\n\n // begin point\n beginX = point.getX() - dx;\n beginY = slope * beginX + intercept;\n // end point\n endX = point.getX() + dx;\n endY = slope * endX + intercept;\n } else {\n // horizontal input line -> perpendicular is vertical!\n // begin point\n beginX = point.getX();\n beginY = point.getY() - length / 2;\n // end point\n endX = point.getX();\n endY = point.getY() + length / 2;\n }\n // perpendicalar line\n return new Line(\n new Point2D(beginX, beginY),\n new Point2D(endX, endY));\n}\n","import {Line, getPerpendicularLine} from '../math/line';\nimport {Point2D} from '../math/point';\nimport {logger} from '../utils/logger';\nimport {defaults} from '../app/defaults';\nimport {DRAW_DEBUG, getDefaultAnchor} from './drawBounds';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Style} from '../gui/style';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Ruler factory.\n */\nexport class RulerFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'ruler-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Set an annotation math shape from input points.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Point2D[]} points The points.\n */\n setAnnotationMathShape(annotation, points) {\n annotation.mathShape = this.#calculateMathShape(points);\n annotation.setTextExpr(this.#getDefaultLabel());\n annotation.updateQuantification();\n }\n\n /**\n * Create a line shape to be displayed.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Group} The Konva group.\n */\n createShapeGroup(annotation, style) {\n // konva group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.visible(true);\n group.id(annotation.id);\n // konva shape\n group.add(this.#createShape(annotation, style));\n // extras\n const extras = this.#createShapeExtras(annotation, style);\n for (const extra of extras) {\n group.add(extra);\n }\n // konva label\n group.add(this.#createLabel(annotation, style));\n // konva shadow (if debug)\n if (DRAW_DEBUG) {\n group.add(this.#getDebugShadow(annotation));\n }\n return group;\n }\n\n /**\n * Get anchors to update a line shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n // compensate for possible shape drag\n const anchors = [];\n anchors.push(getDefaultAnchor(\n points[0] + shape.x(), points[1] + shape.y(), 'begin', style\n ));\n anchors.push(getDefaultAnchor(\n points[2] + shape.x(), points[3] + shape.y(), 'end', style\n ));\n return anchors;\n }\n\n /**\n * Constrain anchor movement.\n *\n * @param {Konva.Ellipse} _anchor The active anchor.\n */\n constrainAnchorMove(_anchor) {\n // no constraints\n }\n\n /**\n * Update shape and label on anchor move taking the updated\n * annotation as input.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The application style.\n */\n updateShapeGroupOnAnchorMove(annotation, anchor, style) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n\n // update shape and anchors\n this.#updateShape(annotation, anchor, style);\n // update label\n this.updateLabelContent(annotation, group, style);\n // TODO check if linked label...\n this.updateLabelPosition(annotation, group, style);\n // update shadow\n if (DRAW_DEBUG) {\n this.#updateDebugShadow(annotation, group);\n }\n }\n\n /**\n * Update an annotation on anchor move.\n *\n * @param {Annotation} annotation The annotation.\n * @param {Konva.Shape} anchor The anchor.\n */\n updateAnnotationOnAnchorMove(annotation, anchor) {\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // find anchors\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n\n // math shape\n // compensate for possible shape drag\n const pointBegin = new Point2D(\n begin.x() - kline.x(),\n begin.y() - kline.y()\n );\n const pointEnd = new Point2D(\n end.x() - kline.x(),\n end.y() - kline.y()\n );\n annotation.mathShape = new Line(pointBegin, pointEnd);\n // label position\n // TODO...\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update an annotation on translation (shape move).\n *\n * @param {Annotation} annotation The annotation.\n * @param {object} translation The translation.\n */\n updateAnnotationOnTranslation(annotation, translation) {\n // math shape\n const line = annotation.mathShape;\n const begin = line.getBegin();\n const newBegin = new Point2D(\n begin.getX() + translation.x,\n begin.getY() + translation.y\n );\n const end = line.getEnd();\n const newEnd = new Point2D(\n end.getX() + translation.x,\n end.getY() + translation.y\n );\n annotation.mathShape = new Line(newBegin, newEnd);\n // label position\n const labelPos = annotation.labelPosition;\n if (typeof labelPos !== 'undefined') {\n const newPos = new Point2D(\n labelPos.getX() + translation.x,\n labelPos.getY() + translation.y\n );\n annotation.labelPosition = newPos;\n }\n // quantification\n annotation.updateQuantification();\n }\n\n /**\n * Update the shape label position.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelPosition(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update position\n const labelPosition = this.#getLabelPosition(annotation);\n klabel.position({\n x: labelPosition.getX(),\n y: labelPosition.getY()\n });\n }\n\n /**\n * Update the shape label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Group} group The shape group.\n * @param {Style} _style The application style.\n */\n updateLabelContent(annotation, group, _style) {\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // update text\n const text = annotation.getText();\n const ktext = klabel.getText();\n ktext.setText(text);\n // hide if empty\n klabel.visible(text.length !== 0);\n }\n\n\n /**\n * Calculates the mathematical shape: a line.\n *\n * @param {Point2D[]} points The points that define the shape.\n * @returns {Line} The mathematical shape.\n */\n #calculateMathShape(points) {\n return new Line(points[0], points[1]);\n }\n\n /**\n * Get the default labels.\n *\n * @returns {object} The label list.\n */\n #getDefaultLabel() {\n return defaults.labelText.ruler;\n }\n\n /**\n * Creates the konva shape.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Line} The konva shape.\n */\n #createShape(annotation, style) {\n const line = annotation.mathShape;\n\n // konva line\n const kshape = new Konva.Line({\n points: [\n line.getBegin().getX(),\n line.getBegin().getY(),\n line.getEnd().getX(),\n line.getEnd().getY()\n ],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n\n // larger hitfunc\n const tickLen = style.applyZoomScale(10).x;\n const linePerp0 = getPerpendicularLine(line, line.getBegin(), tickLen);\n const linePerp1 = getPerpendicularLine(line, line.getEnd(), tickLen);\n kshape.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kshape);\n });\n\n return kshape;\n }\n\n /**\n * Creates the konva shape extras.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Array} The konva shape extras.\n */\n #createShapeExtras(annotation, style) {\n const line = annotation.mathShape;\n\n const tickLen = style.applyZoomScale(10).x;\n\n // tick begin\n const linePerp0 = getPerpendicularLine(line, line.getBegin(), tickLen);\n const ktick0 = new Konva.Line({\n points: [\n linePerp0.getBegin().getX(),\n linePerp0.getBegin().getY(),\n linePerp0.getEnd().getX(),\n linePerp0.getEnd().getY()\n ],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape-tick0'\n });\n\n // tick end\n const linePerp1 = getPerpendicularLine(line, line.getEnd(), tickLen);\n const ktick1 = new Konva.Line({\n points: [\n linePerp1.getBegin().getX(),\n linePerp1.getBegin().getY(),\n linePerp1.getEnd().getX(),\n linePerp1.getEnd().getY()\n ],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape-tick1'\n });\n\n return [ktick0, ktick1];\n }\n\n /**\n * Get the default annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getDefaultLabelPosition(annotation) {\n const line = annotation.mathShape;\n const begin = line.getBegin();\n const end = line.getEnd();\n // lowest point\n let res = begin;\n if (begin.getY() < end.getY()) {\n res = end;\n }\n return res;\n }\n\n /**\n * Get the annotation label position.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Point2D} The position.\n */\n #getLabelPosition(annotation) {\n let res = annotation.labelPosition;\n if (typeof res === 'undefined') {\n res = this.#getDefaultLabelPosition(annotation);\n }\n return res;\n }\n\n /**\n * Creates the konva label.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Style} style The drawing style.\n * @returns {Konva.Label} The Konva label.\n */\n #createLabel(annotation, style) {\n // konva text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n const labelText = annotation.getText();\n ktext.setText(labelText);\n\n // konva label\n const labelPosition = this.#getLabelPosition(annotation);\n const klabel = new Konva.Label({\n x: labelPosition.getX(),\n y: labelPosition.getY(),\n scale: style.applyZoomScale(1),\n visible: labelText.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n return klabel;\n }\n\n /**\n * Update shape and label on anchor move taking the updated\n * annotation as input.\n *\n * @param {Annotation} annotation The associated annotation.\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The application style.\n */\n #updateShape(annotation, anchor, style) {\n const line = annotation.mathShape;\n\n // parent group\n const group = anchor.getParent();\n if (!(group instanceof Konva.Group)) {\n return;\n }\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n\n // reset position after possible shape drag\n kline.position({x: 0, y: 0});\n // update shape\n kline.points([\n line.getBegin().getX(),\n line.getBegin().getY(),\n line.getEnd().getX(),\n line.getEnd().getY(),\n ]);\n\n // associated tick0\n const ktick0 = group.getChildren(function (node) {\n return node.name() === 'shape-tick0';\n })[0];\n if (!(ktick0 instanceof Konva.Line)) {\n return;\n }\n // associated tick1\n const ktick1 = group.getChildren(function (node) {\n return node.name() === 'shape-tick1';\n })[0];\n if (!(ktick1 instanceof Konva.Line)) {\n return;\n }\n // find anchors\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n\n // update 'self' (undo case)\n switch (anchor.id()) {\n case 'begin':\n begin.x(anchor.x());\n begin.y(anchor.y());\n break;\n case 'end':\n end.x(anchor.x());\n end.y(anchor.y());\n break;\n default:\n logger.error('Unhandled anchor id: ' + anchor.id());\n break;\n }\n\n // tick\n const tickLen = style.applyZoomScale(10).x;\n const linePerp0 = getPerpendicularLine(line, line.getBegin(), tickLen);\n ktick0.position({x: 0, y: 0});\n ktick0.points([linePerp0.getBegin().getX(),\n linePerp0.getBegin().getY(),\n linePerp0.getEnd().getX(),\n linePerp0.getEnd().getY()]);\n const linePerp1 = getPerpendicularLine(line, line.getEnd(), tickLen);\n ktick1.position({x: 0, y: 0});\n ktick1.points([linePerp1.getBegin().getX(),\n linePerp1.getBegin().getY(),\n linePerp1.getEnd().getX(),\n linePerp1.getEnd().getY()]);\n\n // larger hitfunc\n kline.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kline);\n });\n }\n\n /**\n * Get the debug shadow.\n *\n * @param {Annotation} _annotation The annotation to shadow.\n * @param {Konva.Group} [_group] The associated group.\n * @returns {Konva.Group|undefined} The shadow konva group.\n */\n #getDebugShadow(_annotation, _group) {\n return;\n }\n\n /**\n * Update the debug shadow.\n *\n * @param {Annotation} _annotation The annotation to shadow.\n * @param {Konva.Group} _group The associated group.\n */\n #updateDebugShadow(_annotation, _group) {\n // does nothing\n }\n\n} // class RulerFactory\n","import {ListenerHandler} from '../utils/listen';\nimport {getFlags, replaceFlags} from '../utils/string';\nimport {CircleFactory} from '../tools/circle';\nimport {Circle} from '../math/circle';\nimport {EllipseFactory} from '../tools/ellipse';\nimport {Ellipse} from '../math/ellipse';\nimport {RectangleFactory} from '../tools/rectangle';\nimport {Rectangle} from '../math/rectangle';\nimport {RulerFactory} from '../tools/ruler';\nimport {Line} from '../math/line';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Index} from '../math/index';\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Image annotation.\n */\nexport class Annotation {\n /**\n * The ID.\n *\n * 'Tracking Unique Identifier', 112040, DCM.\n *\n * @type {string}\n */\n id;\n\n /**\n * The reference image SOP UID.\n *\n * @type {string}\n */\n referenceSopUID;\n\n /**\n * The position: an Index converted to string.\n *\n * @type {string}\n */\n position;\n\n /**\n * The mathematical shape.\n *\n * @type {object}\n */\n mathShape;\n\n /**\n * The color: for example 'green', '#00ff00' or 'rgb(0,255,0)'.\n *\n * 'RGB R Component', 110834, DCM...\n *\n * @type {string}\n */\n colour;\n\n /**\n * Annotation quantification.\n *\n * @type {object}\n */\n quantification;\n\n /**\n * Text expression. Can contain variables surrounded with '{}' that will\n * be extracted from the quantification object.\n *\n * 'Short label', 125309, DCM.\n *\n * @type {string}\n */\n textExpr;\n\n /**\n * Label position.\n *\n * @type {Point2D}\n */\n labelPosition;\n\n /**\n * Associated view controller.\n *\n * @type {ViewController}\n */\n #viewController;\n\n /**\n * Set the associated view controller.\n *\n * @param {ViewController} viewController The associated view controller.\n */\n setViewController(viewController) {\n if (typeof this.#viewController === 'undefined') {\n this.#viewController = viewController;\n // set UID if empty\n if (typeof this.referenceSopUID === 'undefined') {\n this.referenceSopUID = viewController.getCurrentImageUid();\n }\n } else {\n console.log('Cannot override previous view controller');\n }\n }\n\n /**\n * Get the image origin for a image UID.\n *\n * @returns {Index|undefined} The origin index.\n */\n getOriginIndex() {\n let res;\n if (typeof this.#viewController !== 'undefined') {\n res =\n this.#viewController.getOriginIndexForImageUid(this.referenceSopUID);\n }\n return res;\n }\n\n /**\n * Set the annotation text expression.\n *\n * @param {Object.} labelText The list of label\n * texts indexed by modality.\n */\n setTextExpr(labelText) {\n if (typeof this.#viewController !== 'undefined') {\n const modality = this.#viewController.getModality();\n\n if (typeof labelText[modality] !== 'undefined') {\n this.textExpr = labelText[modality];\n } else {\n this.textExpr = labelText['*'];\n }\n } else {\n console.log('Cannot set text expr without a view controller');\n }\n }\n\n /**\n * Get the annotation label text by applying the\n * text expression on the current quantification.\n *\n * @returns {string} The resulting text.\n */\n getText() {\n return replaceFlags(this.textExpr, this.quantification);\n }\n\n /**\n * Update the annotation quantification.\n */\n updateQuantification() {\n if (typeof this.#viewController !== 'undefined') {\n this.quantification = this.mathShape.quantify(\n this.#viewController,\n getFlags(this.textExpr));\n } else {\n console.log('Cannot update quantification without a view controller');\n }\n }\n\n /**\n * Get the math shape associated draw factory.\n *\n * @returns {object} The factory.\n */\n getFactory() {\n let fac;\n if (this.mathShape instanceof Line) {\n fac = new RulerFactory();\n } else if (this.mathShape instanceof Circle) {\n fac = new CircleFactory();\n } else if (this.mathShape instanceof Ellipse) {\n fac = new EllipseFactory();\n } else if (this.mathShape instanceof Rectangle) {\n fac = new RectangleFactory();\n }\n\n return fac;\n }\n\n /**\n * Get the string type of this annotation.\n *\n * @returns {string} The type.\n */\n getType() {\n let res;\n if (this.mathShape instanceof Line) {\n res = 'ruler';\n } else if (this.mathShape instanceof Circle) {\n res = 'circle';\n } else if (this.mathShape instanceof Ellipse) {\n res = 'ellipse';\n } else if (this.mathShape instanceof Rectangle) {\n res = 'rectangle';\n }\n return res;\n }\n}\n\n/**\n * Annotation group.\n */\nexport class AnnotationGroup {\n /**\n * @type {Annotation[]}\n */\n #list;\n\n /**\n * Annotation meta data.\n *\n * @type {Object}\n */\n #meta = {};\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {Annotation[]} [list] Optional list, will\n * create new if not provided.\n */\n constructor(list) {\n if (typeof list !== 'undefined') {\n this.#list = list;\n } else {\n this.#list = [];\n }\n }\n\n /**\n * Get the annotation group as an array.\n *\n * @returns {Annotation[]} The array.\n */\n getList() {\n return this.#list;\n }\n\n /**\n * Get the number of annotations of this list.\n *\n * @returns {number} The number of annotations.\n */\n getLength() {\n return this.#list.length;\n }\n\n /**\n * Add a new annotation.\n *\n * @param {Annotation} annotation The annotation to add.\n */\n add(annotation) {\n this.#list.push(annotation);\n this.#fireEvent({\n type: 'annotationadd',\n data: annotation\n });\n }\n\n /**\n * Update an existing annotation.\n *\n * @param {Annotation} annotation The annotation to update.\n */\n update(annotation) {\n const index = this.#list.findIndex((item) => item.id === annotation.id);\n if (index !== -1) {\n this.#list[index] = annotation;\n this.#fireEvent({\n type: 'annotationupdate',\n data: annotation\n });\n } else {\n console.log('Cannot find annotation to update');\n }\n }\n\n /**\n * Remove an annotation.\n *\n * @param {string} id The id of the annotation to remove.\n */\n remove(id) {\n const index = this.#list.findIndex((item) => item.id === id);\n if (index !== -1) {\n const annotation = this.#list.splice(index, 1)[0];\n this.#fireEvent({\n type: 'annotationremove',\n data: annotation\n });\n } else {\n console.log('Cannot find annotation to remove');\n }\n }\n\n /**\n * Set the associated view controller.\n *\n * @param {ViewController} viewController The associated view controller.\n */\n setViewController(viewController) {\n for (const item of this.#list) {\n item.setViewController(viewController);\n item.updateQuantification();\n }\n }\n\n /**\n * Find an annotation.\n *\n * @param {string} id The id of the annotation to find.\n * @returns {Annotation|undefined} The found annotation.\n */\n find(id) {\n return this.#list.find((item) => item.id === id);\n }\n\n /**\n * Get the meta data.\n *\n * @returns {Object} The meta data.\n */\n getMeta() {\n return this.#meta;\n }\n\n /**\n * Check if this list contains a meta data value.\n *\n * @param {string} key The key to check.\n * @returns {boolean} True if the meta data is present.\n */\n hasMeta(key) {\n return typeof this.#meta[key] !== 'undefined';\n }\n\n /**\n * Get a meta data value.\n *\n * @param {string} key The meta data key.\n * @returns {object} The meta data value.\n */\n getMetaValue(key) {\n return this.#meta[key];\n }\n\n /**\n * Set a meta data.\n *\n * @param {string} key The meta data key.\n * @param {object} value The value of the meta data.\n */\n setMetaValue(key, value) {\n this.#meta[key] = value;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n}","import {logger} from '../utils/logger';\nimport {Point2D} from '../math/point';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * List of interaction event names.\n */\nexport const InteractionEventNames = [\n 'mousedown',\n 'mousemove',\n 'mouseup',\n 'mouseout',\n 'wheel',\n 'dblclick',\n 'touchstart',\n 'touchmove',\n 'touchend'\n];\n\n/**\n * Overridalbe custom UI object for client defined UI.\n */\nexport const customUI = {\n /**\n * Open a dialogue to edit roi data. Defaults to window.prompt.\n *\n * @param {Annotation} annotation The roi data.\n * @param {Function} callback The callback to launch on dialogue exit.\n */\n openRoiDialog(annotation, callback) {\n const textExpr = prompt('Label', annotation.textExpr);\n if (textExpr !== null) {\n annotation.textExpr = textExpr;\n callback(annotation);\n }\n }\n};\n\n/**\n * Get the positions (without the parent offset) of a list of touch events.\n *\n * @param {Array} touches The list of touch events.\n * @returns {Point2D[]} The list of positions of the touch events.\n */\nfunction getTouchesPositions(touches) {\n // get the touch offset from all its parents\n let offsetLeft = 0;\n let offsetTop = 0;\n if (touches.length !== 0 &&\n typeof touches[0].target !== 'undefined') {\n let offsetParent = touches[0].target.offsetParent;\n while (offsetParent) {\n if (!isNaN(offsetParent.offsetLeft)) {\n offsetLeft += offsetParent.offsetLeft;\n }\n if (!isNaN(offsetParent.offsetTop)) {\n offsetTop += offsetParent.offsetTop;\n }\n offsetParent = offsetParent.offsetParent;\n }\n } else {\n logger.debug('No touch target offset parent.');\n }\n // set its position\n const positions = [];\n for (let i = 0; i < touches.length; ++i) {\n positions.push(new Point2D(\n touches[i].pageX - offsetLeft,\n touches[i].pageY - offsetTop\n ));\n }\n return positions;\n}\n\n/**\n * Get the offsets of an input touch event.\n *\n * @param {object} event The event to get the offset from.\n * @returns {Point2D[]} The array of points.\n */\nexport function getTouchPoints(event) {\n let positions = [];\n if (typeof event.targetTouches !== 'undefined' &&\n event.targetTouches.length !== 0) {\n // see https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/targetTouches\n positions = getTouchesPositions(event.targetTouches);\n } else if (typeof event.changedTouches !== 'undefined' &&\n event.changedTouches.length !== 0) {\n // see https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent/changedTouches\n positions = getTouchesPositions(event.changedTouches);\n }\n return positions;\n}\n\n/**\n * Get the offset of an input mouse event.\n *\n * @param {object} event The event to get the offset from.\n * @returns {Point2D} The 2D point.\n */\nexport function getMousePoint(event) {\n // offsetX/Y: the offset in the X coordinate of the mouse pointer\n // between that event and the padding edge of the target node\n // https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/offsetX\n // https://caniuse.com/mdn-api_mouseevent_offsetx\n return new Point2D(\n event.offsetX,\n event.offsetY\n );\n}\n\n/**\n * Test if a canvas with the input size can be created.\n *\n * Ref:\n * - {@link https://github.com/ivmartel/dwv/issues/902},\n * - {@link https://github.com/jhildenbiddle/canvas-size/blob/v1.2.4/src/canvas-test.js}.\n *\n * @param {number} width The canvas width.\n * @param {number} height The canvas height.\n * @returns {boolean} True is the canvas can be created.\n */\nexport function canCreateCanvas(width, height) {\n // test canvas with input size\n const testCvs = document.createElement('canvas');\n testCvs.width = width;\n testCvs.height = height;\n // crop canvas to speed up test\n const cropCvs = document.createElement('canvas');\n cropCvs.width = 1;\n cropCvs.height = 1;\n // contexts\n const testCtx = testCvs.getContext('2d');\n const cropCtx = cropCvs.getContext('2d');\n // set data\n if (testCtx) {\n testCtx.fillRect(width - 1, height - 1, 1, 1);\n // Render the test pixel in the bottom-right corner of the\n // test canvas in the top-left of the 1x1 crop canvas. This\n // dramatically reducing the time for getImageData to complete.\n cropCtx.drawImage(testCvs, width - 1, height - 1, 1, 1, 0, 0, 1, 1);\n }\n // Verify image data (alpha component, Pass = 255, Fail = 0)\n return cropCtx && cropCtx.getImageData(0, 0, 1, 1).data[3] !== 0;\n}\n","import {Index} from '../math/index';\nimport {ListenerHandler} from '../utils/listen';\nimport {viewEventNames} from '../image/view';\nimport {ViewController} from '../app/viewController';\nimport {Point2D} from '../math/point';\nimport {\n canCreateCanvas,\n InteractionEventNames\n} from './generic';\nimport {getScaledOffset} from './layerGroup';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Vector3D} from '../math/vector';\nimport {Point, Point3D} from '../math/point';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * View layer.\n */\nexport class ViewLayer {\n\n /**\n * Container div.\n *\n * @type {HTMLElement}\n */\n #containerDiv;\n\n /**\n * The view controller.\n *\n * @type {ViewController}\n */\n #viewController = null;\n\n /**\n * The main display canvas.\n *\n * @type {object}\n */\n #canvas = null;\n\n /**\n * The offscreen canvas: used to store the raw, unscaled pixel data.\n *\n * @type {object}\n */\n #offscreenCanvas = null;\n\n /**\n * The associated CanvasRenderingContext2D.\n *\n * @type {object}\n */\n #context = null;\n\n /**\n * Flag to know if the current position is valid.\n *\n * @type {boolean}\n */\n #isValidPosition = true;\n\n /**\n * The image data array.\n *\n * @type {ImageData}\n */\n #imageData = null;\n\n /**\n * The layer base size as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSize;\n\n /**\n * The layer base spacing as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSpacing;\n\n /**\n * The layer opacity.\n *\n * @type {number}\n */\n #opacity = 1;\n\n /**\n * The layer scale.\n *\n * @type {Scalar2D}\n */\n #scale = {x: 1, y: 1};\n\n /**\n * The layer fit scale.\n *\n * @type {Scalar2D}\n */\n #fitScale = {x: 1, y: 1};\n\n /**\n * The layer flip scale.\n *\n * @type {Scalar3D}\n */\n #flipScale = {x: 1, y: 1, z: 1};\n\n /**\n * The layer offset.\n *\n * @type {Scalar2D}\n */\n #offset = {x: 0, y: 0};\n\n /**\n * The base layer offset.\n *\n * @type {Scalar2D}\n */\n #baseOffset = {x: 0, y: 0};\n\n /**\n * The view offset.\n *\n * @type {Scalar2D}\n */\n #viewOffset = {x: 0, y: 0};\n\n /**\n * The zoom offset.\n *\n * @type {Scalar2D}\n */\n #zoomOffset = {x: 0, y: 0};\n\n /**\n * The flip offset.\n *\n * @type {Scalar2D}\n */\n #flipOffset = {x: 0, y: 0};\n\n /**\n * Data update flag.\n *\n * @type {boolean}\n */\n #needsDataUpdate = null;\n\n /**\n * The associated data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Image smoothing flag.\n *\n * See: {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled}.\n *\n * @type {boolean}\n */\n #imageSmoothing = false;\n\n /**\n * Layer group origin.\n *\n * @type {Point3D}\n */\n #layerGroupOrigin;\n\n /**\n * Layer group first origin.\n *\n * @type {Point3D}\n */\n #layerGroupOrigin0;\n\n /**\n * @param {HTMLElement} containerDiv The layer div, its id will be used\n * as this layer id.\n */\n constructor(containerDiv) {\n this.#containerDiv = containerDiv;\n // specific css class name\n this.#containerDiv.className += ' viewLayer';\n }\n\n /**\n * Get the associated data id.\n *\n * @returns {string} The data id.\n */\n getDataId() {\n return this.#dataId;\n }\n\n /**\n * Get the layer scale.\n *\n * @returns {Scalar2D} The scale as {x,y}.\n */\n getScale() {\n return this.#scale;\n }\n\n /**\n * Get the layer zoom offset without the fit scale.\n *\n * @returns {Scalar2D} The offset as {x,y}.\n */\n getAbsoluteZoomOffset() {\n return {\n x: this.#zoomOffset.x * this.#fitScale.x,\n y: this.#zoomOffset.y * this.#fitScale.y\n };\n }\n\n /**\n * Set the imageSmoothing flag value.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#imageSmoothing = flag;\n }\n\n /**\n * Set the associated view.\n *\n * @param {object} view The view.\n * @param {string} dataId The associated data id.\n */\n setView(view, dataId) {\n this.#dataId = dataId;\n // local listeners\n view.addEventListener('wlchange', this.#onWLChange);\n view.addEventListener('colourmapchange', this.#onColourMapChange);\n view.addEventListener('positionchange', this.#onPositionChange);\n view.addEventListener('alphafuncchange', this.#onAlphaFuncChange);\n // view events\n for (let j = 0; j < viewEventNames.length; ++j) {\n view.addEventListener(viewEventNames[j], this.#fireEvent);\n }\n // create view controller\n this.#viewController = new ViewController(view);\n // bind layer and image\n this.bindImage();\n }\n\n /**\n * Get the view controller.\n *\n * @returns {ViewController} The controller.\n */\n getViewController() {\n return this.#viewController;\n }\n\n /**\n * Get the canvas image data.\n *\n * @returns {object} The image data.\n */\n getImageData() {\n return this.#imageData;\n }\n\n /**\n * Handle an image set event.\n *\n * @param {object} event The event.\n * @function\n */\n onimageset = (event) => {\n // event.value = [index, image]\n if (this.#dataId === event.dataid) {\n this.#viewController.setImage(event.value[0]);\n this.#setBaseSize(this.#viewController.getImageSize().get2D());\n this.#needsDataUpdate = true;\n }\n };\n\n /**\n * Bind this layer to the view image.\n */\n bindImage() {\n if (this.#viewController) {\n this.#viewController.bindImageAndLayer(this);\n }\n }\n\n /**\n * Unbind this layer to the view image.\n */\n unbindImage() {\n if (this.#viewController) {\n this.#viewController.unbindImageAndLayer(this);\n }\n }\n\n /**\n * Handle an image content change event.\n *\n * @param {object} event The event.\n * @function\n */\n onimagecontentchange = (event) => {\n // event.value = [index]\n if (this.#dataId === event.dataid) {\n this.#isValidPosition = this.#viewController.isPositionInBounds();\n // flag update and draw\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Handle an image change event.\n *\n * @param {object} event The event.\n * @function\n */\n onimagegeometrychange = (event) => {\n // event.value = [index]\n if (this.#dataId === event.dataid) {\n const vcSize = this.#viewController.getImageSize().get2D();\n if (this.#baseSize.x !== vcSize.x ||\n this.#baseSize.y !== vcSize.y) {\n // size changed, recalculate base offset\n // in case origin changed\n if (typeof this.#layerGroupOrigin !== 'undefined' &&\n typeof this.#layerGroupOrigin0 !== 'undefined') {\n const origin0 = this.#viewController.getOrigin();\n const scrollOffset = this.#layerGroupOrigin0.minus(origin0);\n const origin = this.#viewController.getOrigin(\n this.#viewController.getCurrentPosition()\n );\n const planeOffset = this.#layerGroupOrigin.minus(origin);\n this.setBaseOffset(scrollOffset, planeOffset);\n }\n // update base size\n this.#setBaseSize(vcSize);\n // flag update and draw\n this.#needsDataUpdate = true;\n this.draw();\n }\n }\n };\n\n // common layer methods [start] ---------------\n\n /**\n * Get the id of the layer.\n *\n * @returns {string} The string id.\n */\n getId() {\n return this.#containerDiv.id;\n }\n\n /**\n * Remove the HTML element from the DOM.\n */\n removeFromDOM() {\n this.#containerDiv.remove();\n }\n\n /**\n * Get the layer base size (without scale).\n *\n * @returns {Scalar2D} The size as {x,y}.\n */\n getBaseSize() {\n return this.#baseSize;\n }\n\n /**\n * Get the image world (mm) 2D size.\n *\n * @returns {Scalar2D} The 2D size as {x,y}.\n */\n getImageWorldSize() {\n return this.#viewController.getImageWorldSize();\n }\n\n /**\n * Get the layer opacity.\n *\n * @returns {number} The opacity ([0:1] range).\n */\n getOpacity() {\n return this.#opacity;\n }\n\n /**\n * Set the layer opacity.\n *\n * @param {number} alpha The opacity ([0:1] range).\n */\n setOpacity(alpha) {\n if (alpha === this.#opacity) {\n return;\n }\n\n this.#opacity = Math.min(Math.max(alpha, 0), 1);\n\n /**\n * Opacity change event.\n *\n * @event App#opacitychange\n * @type {object}\n * @property {string} type The event type.\n */\n const event = {\n type: 'opacitychange',\n value: [this.#opacity]\n };\n this.#fireEvent(event);\n }\n\n /**\n * Add a flip offset along the layer X axis.\n */\n addFlipOffsetX() {\n this.#flipOffset.x += this.#canvas.width / this.#scale.x;\n this.#offset.x += this.#flipOffset.x;\n }\n\n /**\n * Add a flip offset along the layer Y axis.\n */\n addFlipOffsetY() {\n this.#flipOffset.y += this.#canvas.height / this.#scale.y;\n this.#offset.y += this.#flipOffset.y;\n }\n\n /**\n * Flip the scale along the layer X axis.\n */\n flipScaleX() {\n this.#flipScale.x *= -1;\n }\n\n /**\n * Flip the scale along the layer Y axis.\n */\n flipScaleY() {\n this.#flipScale.y *= -1;\n }\n\n /**\n * Flip the scale along the layer Z axis.\n */\n flipScaleZ() {\n this.#flipScale.z *= -1;\n }\n\n /**\n * Set the layer scale.\n *\n * @param {Scalar3D} newScale The scale as {x,y,z}.\n * @param {Point3D} [center] The scale center.\n */\n setScale(newScale, center) {\n const helper = this.#viewController.getPlaneHelper();\n const orientedNewScale = helper.getTargetOrientedPositiveXYZ({\n x: newScale.x * this.#flipScale.x,\n y: newScale.y * this.#flipScale.y,\n z: newScale.z * this.#flipScale.z,\n });\n const finalNewScale = {\n x: this.#fitScale.x * orientedNewScale.x,\n y: this.#fitScale.y * orientedNewScale.y\n };\n\n if (Math.abs(newScale.x) === 1 &&\n Math.abs(newScale.y) === 1 &&\n Math.abs(newScale.z) === 1) {\n // reset zoom offset for scale=1\n const resetOffset = {\n x: this.#offset.x - this.#zoomOffset.x,\n y: this.#offset.y - this.#zoomOffset.y\n };\n // store new offset\n this.#zoomOffset = {x: 0, y: 0};\n this.#offset = resetOffset;\n } else {\n if (typeof center !== 'undefined') {\n let worldCenter = helper.getPlaneOffsetFromOffset3D({\n x: center.getX(),\n y: center.getY(),\n z: center.getZ()\n });\n // center was obtained with viewLayer.displayToMainPlanePos\n // compensated for baseOffset\n // TODO: justify...\n worldCenter = {\n x: worldCenter.x + this.#baseOffset.x,\n y: worldCenter.y + this.#baseOffset.y\n };\n\n const newOffset = getScaledOffset(\n this.#offset, this.#scale, finalNewScale, worldCenter);\n\n const newZoomOffset = {\n x: this.#zoomOffset.x + newOffset.x - this.#offset.x,\n y: this.#zoomOffset.y + newOffset.y - this.#offset.y\n };\n // store new offset\n this.#zoomOffset = newZoomOffset;\n this.#offset = newOffset;\n }\n }\n\n // store new scale\n this.#scale = finalNewScale;\n }\n\n /**\n * Initialise the layer scale.\n *\n * @param {Scalar3D} newScale The scale as {x,y,z}.\n * @param {Scalar2D} absoluteZoomOffset The zoom offset as {x,y}\n * without the fit scale (as provided by getAbsoluteZoomOffset).\n */\n initScale(newScale, absoluteZoomOffset) {\n const helper = this.#viewController.getPlaneHelper();\n const orientedNewScale = helper.getTargetOrientedPositiveXYZ({\n x: newScale.x * this.#flipScale.x,\n y: newScale.y * this.#flipScale.y,\n z: newScale.z * this.#flipScale.z,\n });\n const finalNewScale = {\n x: this.#fitScale.x * orientedNewScale.x,\n y: this.#fitScale.y * orientedNewScale.y\n };\n this.#scale = finalNewScale;\n\n this.#zoomOffset = {\n x: absoluteZoomOffset.x / this.#fitScale.x,\n y: absoluteZoomOffset.y / this.#fitScale.y\n };\n this.#offset = {\n x: this.#offset.x + this.#zoomOffset.x,\n y: this.#offset.y + this.#zoomOffset.y\n };\n }\n\n /**\n * Set the base layer offset. Updates the layer offset.\n *\n * @param {Vector3D} scrollOffset The scroll offset vector.\n * @param {Vector3D} planeOffset The plane offset vector.\n * @param {Point3D} [layerGroupOrigin] The layer group origin.\n * @param {Point3D} [layerGroupOrigin0] The layer group first origin.\n * @returns {boolean} True if the offset was updated.\n */\n setBaseOffset(\n scrollOffset, planeOffset,\n layerGroupOrigin, layerGroupOrigin0) {\n const helper = this.#viewController.getPlaneHelper();\n const scrollIndex = helper.getNativeScrollIndex();\n const newOffset = helper.getPlaneOffsetFromOffset3D({\n x: scrollIndex === 0 ? scrollOffset.getX() : planeOffset.getX(),\n y: scrollIndex === 1 ? scrollOffset.getY() : planeOffset.getY(),\n z: scrollIndex === 2 ? scrollOffset.getZ() : planeOffset.getZ(),\n });\n const needsUpdate = this.#baseOffset.x !== newOffset.x ||\n this.#baseOffset.y !== newOffset.y;\n // store layer group origins\n if (typeof layerGroupOrigin !== 'undefined' &&\n typeof layerGroupOrigin0 !== 'undefined') {\n this.#layerGroupOrigin = layerGroupOrigin;\n this.#layerGroupOrigin0 = layerGroupOrigin0;\n }\n // reset offset if needed\n if (needsUpdate) {\n this.#offset = {\n x: this.#offset.x - this.#baseOffset.x + newOffset.x,\n y: this.#offset.y - this.#baseOffset.y + newOffset.y\n };\n this.#baseOffset = newOffset;\n }\n return needsUpdate;\n }\n\n /**\n * Set the layer offset.\n *\n * @param {Scalar3D} newOffset The offset as {x,y,z}.\n */\n setOffset(newOffset) {\n const helper = this.#viewController.getPlaneHelper();\n const planeNewOffset = helper.getPlaneOffsetFromOffset3D(newOffset);\n this.#offset = {\n x: planeNewOffset.x +\n this.#viewOffset.x +\n this.#baseOffset.x +\n this.#zoomOffset.x +\n this.#flipOffset.x,\n y: planeNewOffset.y +\n this.#viewOffset.y +\n this.#baseOffset.y +\n this.#zoomOffset.y +\n this.#flipOffset.y\n };\n }\n\n /**\n * Transform a display position to a 2D index.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Index} The equivalent 2D index.\n */\n displayToPlaneIndex(point2D) {\n const planePos = this.displayToPlanePos(point2D);\n return new Index([\n Math.floor(planePos.getX()),\n Math.floor(planePos.getY())\n ]);\n }\n\n /**\n * Remove scale from a display position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The de-scaled point.\n */\n displayToPlaneScale(point2D) {\n return new Point2D(\n point2D.getX() / this.#scale.x,\n point2D.getY() / this.#scale.y\n );\n }\n\n /**\n * Get a plane position from a display position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The plane position.\n */\n displayToPlanePos(point2D) {\n const deScaled = this.displayToPlaneScale(point2D);\n return new Point2D(\n deScaled.getX() + this.#offset.x,\n deScaled.getY() + this.#offset.y\n );\n }\n\n /**\n * Get a display position from a plane position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The display position, can be individually\n * undefined if out of bounds.\n */\n planePosToDisplay(point2D) {\n let posX =\n (point2D.getX() - this.#offset.x + this.#baseOffset.x) * this.#scale.x;\n let posY =\n (point2D.getY() - this.#offset.y + this.#baseOffset.y) * this.#scale.y;\n // check if in bounds\n if (posX < 0 || posX >= this.#canvas.width) {\n posX = undefined;\n }\n if (posY < 0 || posY >= this.#canvas.height) {\n posY = undefined;\n }\n return new Point2D(posX, posY);\n }\n\n /**\n * Get a main plane position from a display position.\n *\n * @param {Point2D} point2D The input point.\n * @returns {Point2D} The main plane position.\n */\n displayToMainPlanePos(point2D) {\n const planePos = this.displayToPlanePos(point2D);\n return new Point2D(\n planePos.getX() - this.#baseOffset.x,\n planePos.getY() - this.#baseOffset.y\n );\n }\n\n /**\n * Display the layer.\n *\n * @param {boolean} flag Whether to display the layer or not.\n */\n display(flag) {\n this.#containerDiv.style.display = flag ? '' : 'none';\n }\n\n /**\n * Check if the layer is visible.\n *\n * @returns {boolean} True if the layer is visible.\n */\n isVisible() {\n return this.#containerDiv.style.display === '';\n }\n\n /**\n * Draw the content (imageData) of the layer.\n * The imageData variable needs to be set.\n *\n * @fires App#renderstart\n * @fires App#renderend\n */\n draw() {\n // skip for non valid position\n if (!this.#isValidPosition) {\n return;\n }\n\n /**\n * Render start event.\n *\n * @event App#renderstart\n * @type {object}\n * @property {string} type The event type.\n */\n let event = {\n type: 'renderstart',\n layerid: this.getId(),\n dataid: this.getDataId()\n };\n this.#fireEvent(event);\n\n // update data if needed\n if (this.#needsDataUpdate) {\n this.#updateImageData();\n }\n\n // context opacity\n this.#context.globalAlpha = this.#opacity;\n\n // clear context\n this.clear();\n\n // draw the cached canvas on the context\n // transform takes as input a, b, c, d, e, f to create\n // the transform matrix (column-major order):\n // [ a c e ]\n // [ b d f ]\n // [ 0 0 1 ]\n this.#context.setTransform(\n this.#scale.x,\n 0,\n 0,\n this.#scale.y,\n -1 * this.#offset.x * this.#scale.x,\n -1 * this.#offset.y * this.#scale.y\n );\n\n // disable smoothing (set just before draw, could be reset by resize)\n this.#context.imageSmoothingEnabled = this.#imageSmoothing;\n // draw image\n this.#context.drawImage(this.#offscreenCanvas, 0, 0);\n\n /**\n * Render end event.\n *\n * @event App#renderend\n * @type {object}\n * @property {string} type The event type.\n */\n event = {\n type: 'renderend',\n layerid: this.getId(),\n dataid: this.getDataId()\n };\n this.#fireEvent(event);\n }\n\n /**\n * Initialise the layer: set the canvas and context.\n *\n * @param {Scalar2D} size The image size as {x,y}.\n * @param {Scalar2D} spacing The image spacing as {x,y}.\n * @param {number} alpha The initial data opacity.\n */\n initialise(size, spacing, alpha) {\n // set locals\n this.#baseSpacing = spacing;\n this.#opacity = Math.min(Math.max(alpha, 0), 1);\n\n // create canvas\n // (canvas size is set in fitToContainer)\n this.#canvas = document.createElement('canvas');\n this.#containerDiv.appendChild(this.#canvas);\n\n // check that the getContext method exists\n if (!this.#canvas.getContext) {\n alert('Error: no canvas.getContext method.');\n return;\n }\n // get the 2D context\n this.#context = this.#canvas.getContext('2d');\n if (!this.#context) {\n alert('Error: failed to get the 2D context.');\n return;\n }\n\n // off screen canvas\n this.#offscreenCanvas = document.createElement('canvas');\n\n // set base size: needs an existing context and off screen canvas\n this.#setBaseSize(size);\n\n // update data on first draw\n this.#needsDataUpdate = true;\n }\n\n /**\n * Set the base size of the layer.\n *\n * @param {Scalar2D} size The size as {x,y}.\n */\n #setBaseSize(size) {\n // check canvas creation\n if (!canCreateCanvas(size.x, size.y)) {\n throw new Error('Cannot create canvas with size ' +\n size.x + ', ' + size.y);\n }\n\n // set local\n this.#baseSize = size;\n\n // off screen canvas\n this.#offscreenCanvas.width = this.#baseSize.x;\n this.#offscreenCanvas.height = this.#baseSize.y;\n // original empty image data array\n this.#context.clearRect(0, 0, this.#baseSize.x, this.#baseSize.y);\n this.#imageData = this.#context.createImageData(\n this.#baseSize.x, this.#baseSize.y);\n }\n\n /**\n * Fit the layer to its parent container.\n *\n * @param {Scalar2D} containerSize The fit size as {x,y}.\n * @param {number} divToWorldSizeRatio The div to world size ratio.\n * @param {Scalar2D} fitOffset The fit offset as {x,y}.\n */\n fitToContainer(containerSize, divToWorldSizeRatio, fitOffset) {\n let needsDraw = false;\n\n // set canvas size if different from previous\n if (this.#canvas.width !== containerSize.x ||\n this.#canvas.height !== containerSize.y) {\n if (!canCreateCanvas(containerSize.x, containerSize.y)) {\n throw new Error('Cannot resize canvas ' +\n containerSize.x + ', ' + containerSize.y);\n }\n // canvas size change triggers canvas reset\n this.#canvas.width = containerSize.x;\n this.#canvas.height = containerSize.y;\n // update draw flag\n needsDraw = true;\n }\n\n // fit scale\n const divToImageSizeRatio = {\n x: divToWorldSizeRatio * this.#baseSpacing.x,\n y: divToWorldSizeRatio * this.#baseSpacing.y\n };\n // #scale = inputScale * fitScale * flipScale\n // flipScale does not change here, we can omit it\n // newScale = (#scale / fitScale) * newFitScale\n const newScale = {\n x: this.#scale.x * divToImageSizeRatio.x / this.#fitScale.x,\n y: this.#scale.y * divToImageSizeRatio.y / this.#fitScale.y\n };\n\n // set scales if different from previous\n if (this.#scale.x !== newScale.x ||\n this.#scale.y !== newScale.y) {\n this.#fitScale = divToImageSizeRatio;\n this.#scale = newScale;\n // update draw flag\n needsDraw = true;\n }\n\n // view offset\n const newViewOffset = {\n x: fitOffset.x / divToImageSizeRatio.x,\n y: fitOffset.y / divToImageSizeRatio.y\n };\n // flip offset\n const scaledImageSize = {\n x: containerSize.x / divToImageSizeRatio.x,\n y: containerSize.y / divToImageSizeRatio.y\n };\n const newFlipOffset = {\n x: this.#flipOffset.x !== 0 ? scaledImageSize.x : 0,\n y: this.#flipOffset.y !== 0 ? scaledImageSize.y : 0,\n };\n\n // set offsets if different from previous\n if (this.#viewOffset.x !== newViewOffset.x ||\n this.#viewOffset.y !== newViewOffset.y ||\n this.#flipOffset.x !== newFlipOffset.x ||\n this.#flipOffset.y !== newFlipOffset.y) {\n // update global offset\n this.#offset = {\n x: this.#offset.x +\n newViewOffset.x - this.#viewOffset.x +\n newFlipOffset.x - this.#flipOffset.x,\n y: this.#offset.y +\n newViewOffset.y - this.#viewOffset.y +\n newFlipOffset.y - this.#flipOffset.y,\n };\n // update private local offsets\n this.#flipOffset = newFlipOffset;\n this.#viewOffset = newViewOffset;\n // update draw flag\n needsDraw = true;\n }\n\n // draw if needed\n if (needsDraw) {\n this.draw();\n }\n }\n\n /**\n * Enable and listen to container interaction events.\n */\n bindInteraction() {\n // allow pointer events\n this.#containerDiv.style.pointerEvents = 'auto';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n const eventName = names[i];\n const passive = eventName !== 'wheel';\n this.#containerDiv.addEventListener(\n eventName, this.#fireEvent, {passive: passive});\n }\n }\n\n /**\n * Disable and stop listening to container interaction events.\n */\n unbindInteraction() {\n // disable pointer events\n this.#containerDiv.style.pointerEvents = 'none';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n this.#containerDiv.removeEventListener(names[i], this.#fireEvent);\n }\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n event.srclayerid = this.getId();\n event.dataid = this.#dataId;\n this.#listenerHandler.fireEvent(event);\n };\n\n // common layer methods [end] ---------------\n\n /**\n * Update the canvas image data.\n */\n #updateImageData() {\n // generate image data\n this.#viewController.generateImageData(this.#imageData);\n // pass the data to the off screen canvas\n this.#offscreenCanvas.getContext('2d').putImageData(this.#imageData, 0, 0);\n // update data flag\n this.#needsDataUpdate = false;\n }\n\n /**\n * Handle window/level change.\n *\n * @param {object} event The event fired when changing the window/level.\n */\n #onWLChange = (event) => {\n // generate and draw if no skip flag\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Handle colour map change.\n *\n * @param {object} event The event fired when changing the colour map.\n */\n #onColourMapChange = (event) => {\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Handle position change.\n *\n * @param {object} event The event fired when changing the position.\n */\n #onPositionChange = (event) => {\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n let valid = true;\n if (typeof event.valid !== 'undefined') {\n valid = event.valid;\n }\n // clear for non valid events\n if (!valid) {\n // clear only once\n if (this.#isValidPosition) {\n this.#isValidPosition = false;\n this.clear();\n }\n } else {\n // 3D dimensions\n const dims3D = [0, 1, 2];\n // remove scroll index\n const indexScrollIndex =\n dims3D.indexOf(this.#viewController.getScrollIndex());\n dims3D.splice(indexScrollIndex, 1);\n // remove non scroll index from diff dims\n const diffDims = event.diffDims.filter(function (item) {\n return dims3D.indexOf(item) === -1;\n });\n // update if we have something left\n if (diffDims.length !== 0 || !this.#isValidPosition) {\n // reset valid flag\n this.#isValidPosition = true;\n // reset update flag\n this.#needsDataUpdate = true;\n this.draw();\n }\n }\n }\n };\n\n /**\n * Handle alpha function change.\n *\n * @param {object} event The event fired when changing the function.\n */\n #onAlphaFuncChange = (event) => {\n const skip = typeof event.skipGenerate !== 'undefined' &&\n event.skipGenerate === true;\n if (!skip) {\n this.#needsDataUpdate = true;\n this.draw();\n }\n };\n\n /**\n * Set the current position.\n *\n * @param {Point} position The new position.\n * @param {Index} _index The new index.\n * @returns {boolean} True if the position was updated.\n */\n setCurrentPosition(position, _index) {\n return this.#viewController.setCurrentPosition(position);\n }\n\n /**\n * Clear the context.\n */\n clear() {\n // clear the context: reset the transform first\n // store the current transformation matrix\n this.#context.save();\n // use the identity matrix while clearing the canvas\n this.#context.setTransform(1, 0, 0, 1, 0, 0);\n this.#context.clearRect(0, 0, this.#canvas.width, this.#canvas.height);\n // restore the transform\n this.#context.restore();\n }\n\n} // ViewLayer class\n","// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Annotation} from '../image/annotation';\nimport {DrawController} from '../app/drawController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get the display name of the input shape.\n *\n * @param {Konva.Shape} shape The Konva shape.\n * @returns {string} The display name.\n */\nexport function getShapeDisplayName(shape) {\n let displayName = 'shape';\n if (shape instanceof Konva.Line) {\n if (shape.points().length === 4) {\n displayName = 'line';\n } else if (shape.points().length === 6) {\n displayName = 'protractor';\n } else {\n displayName = 'roi';\n }\n } else if (shape instanceof Konva.Rect) {\n displayName = 'rectangle';\n } else if (shape instanceof Konva.Ellipse) {\n displayName = 'ellipse';\n }\n // return\n return displayName;\n}\n\n/**\n * Add annotation command.\n */\nexport class AddAnnotationCommand {\n /**\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * @param {Annotation} annotation The annotation to add.\n * @param {DrawController} drawController The associated draw controller.\n */\n constructor(annotation, drawController) {\n this.#annotation = annotation;\n this.#drawController = drawController;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'AddAnnotation-' + this.#annotation.id;\n }\n\n /**\n * Execute the command.\n */\n execute() {\n this.#drawController.addAnnotation(this.#annotation);\n }\n\n /**\n * Undo the command.\n */\n undo() {\n this.#drawController.removeAnnotation(this.#annotation.id);\n }\n}\n\n/**\n * Remove annotation command.\n */\nexport class RemoveAnnotationCommand {\n /**\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * @param {Annotation} annotation The annotation to remove.\n * @param {DrawController} drawController The associated draw controller.\n */\n constructor(annotation, drawController) {\n this.#annotation = annotation;\n this.#drawController = drawController;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'RemoveAnnotation-' + this.#annotation.id;\n }\n\n /**\n * Execute the command.\n */\n execute() {\n this.#drawController.removeAnnotation(this.#annotation.id);\n }\n\n /**\n * Undo the command.\n */\n undo() {\n this.#drawController.addAnnotation(this.#annotation);\n }\n}\n\n/**\n * Update annotation command.\n */\nexport class UpdateAnnotationCommand {\n /**\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * Original annotation properties.\n *\n * @type {object}\n */\n #originalProps;\n\n /**\n * New annotation properties.\n *\n * @type {object}\n */\n #newProps;\n\n /**\n * @param {Annotation} annotation The annotation to update.\n * @param {object} originaProps The original annotation properties.\n * @param {object} newProps The new annotation properties.\n * @param {DrawController} drawController The associated draw controller.\n */\n constructor(annotation, originaProps, newProps, drawController) {\n this.#annotation = annotation;\n this.#drawController = drawController;\n this.#originalProps = originaProps;\n this.#newProps = newProps;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'UpdateAnnotation-' + this.#annotation.id;\n }\n\n /**\n * Execute the command.\n */\n execute() {\n for (const prop in this.#newProps) {\n this.#annotation[prop] = this.#newProps[prop];\n }\n this.#drawController.updateAnnotation(this.#annotation);\n }\n\n /**\n * Undo the command.\n */\n undo() {\n for (const prop in this.#originalProps) {\n this.#annotation[prop] = this.#originalProps[prop];\n }\n this.#drawController.updateAnnotation(this.#annotation);\n }\n}\n/**\n * Draw group command.\n *\n * TODO: remove.\n */\nexport class DrawGroupCommand {\n\n /**\n * The group to draw.\n *\n * @type {Konva.Group}\n */\n #group;\n\n /**\n * The shape display name.\n *\n * @type {string}\n */\n #name;\n\n /**\n * The draw layer.\n *\n * @type {DrawLayer}\n */\n #layer;\n\n /**\n * Flag to send events.\n *\n * @type {boolean}\n */\n #isSilent;\n\n /**\n * The group parent.\n *\n * @type {object}\n */\n #parent;\n\n /**\n * @param {Konva.Group} group The group draw.\n * @param {string} name The shape display name.\n * @param {DrawLayer} layer The layer where to draw the group.\n * @param {boolean} [silent] Whether to send a creation event or not.\n */\n constructor(group, name, layer, silent) {\n this.#group = group;\n this.#name = name;\n this.#layer = layer;\n this.#isSilent = (typeof silent === 'undefined') ? false : silent;\n this.#parent = group.getParent();\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Draw-' + this.#name;\n }\n\n /**\n * Execute the command.\n *\n * @fires DrawGroupCommand#drawcreate\n */\n execute() {\n // add the group to the parent (in case of undo/redo)\n this.#parent.add(this.#group);\n // draw\n this.#layer.getKonvaLayer().draw();\n // callback\n if (!this.#isSilent) {\n /**\n * Draw create event.\n *\n * @event DrawGroupCommand#drawcreate\n * @type {object}\n * @property {string} id The id of the created draw.\n * @property {string} srclayerid The id of the layer of the draw.\n * @property {string} dataid The associated data id.\n */\n this.onExecute({\n type: 'drawcreate',\n id: this.#group.id(),\n srclayerid: this.#layer.getId(),\n dataid: this.#layer.getDataId()\n });\n }\n }\n\n /**\n * Undo the command.\n *\n * @fires DeleteGroupCommand#drawdelete\n */\n undo() {\n // remove the group from the parent layer\n this.#group.remove();\n // draw\n this.#layer.getKonvaLayer().draw();\n // callback\n this.onUndo({\n type: 'drawdelete',\n id: this.#group.id(),\n srclayerid: this.#layer.getId(),\n dataid: this.#layer.getDataId()\n });\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // DrawGroupCommand class\n","import {AnnotationGroup} from '../image/annotation';\nimport {RemoveAnnotationCommand} from '../tools/drawCommands';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Draw controller.\n */\nexport class DrawController {\n\n /**\n * The annotation group.\n *\n * @type {AnnotationGroup}\n */\n #annotationGroup;\n\n /**\n * Get an annotation.\n *\n * @param {string} id The annotation id.\n * @returns {Annotation|undefined} The annotation.\n */\n getAnnotation(id) {\n return this.#annotationGroup.find(id);\n }\n\n /**\n * Get the annotation group.\n *\n * @returns {AnnotationGroup} The list.\n */\n getAnnotationGroup() {\n return this.#annotationGroup;\n }\n\n /**\n * Add an annotation.\n *\n * @param {Annotation} annotation The annotation to add.\n */\n addAnnotation(annotation) {\n this.#annotationGroup.add(annotation);\n }\n\n /**\n * Update an anotation from the list.\n *\n * @param {Annotation} annotation The annotation to update.\n */\n updateAnnotation(annotation) {\n this.#annotationGroup.update(annotation);\n }\n\n /**\n * Remove an anotation for the list.\n *\n * @param {string} id The id of the annotation to remove.\n */\n removeAnnotation(id) {\n this.#annotationGroup.remove(id);\n }\n\n /**\n * Remove an annotation via a remove command (triggers draw actions).\n *\n * @param {string} id The annotation id.\n * @param {Function} exeCallback The undo stack callback.\n */\n removeAnnotationWithCommand(id, exeCallback) {\n const annotation = this.getAnnotation(id);\n // create remove annotation command\n const command = new RemoveAnnotationCommand(annotation, this);\n // add command to undo stack\n exeCallback(command);\n // execute command: triggers draw remove\n command.execute();\n }\n\n /**\n * Remove all annotations via remove commands (triggers draw actions).\n *\n * @param {Function} exeCallback The undo stack callback.\n */\n removeAllAnnotationsWithCommand(exeCallback) {\n for (const annotation of this.#annotationGroup.getList()) {\n this.removeAnnotationWithCommand(annotation.id, exeCallback);\n }\n }\n\n /**\n * @param {AnnotationGroup} [group] Optional annotation group.\n */\n constructor(group) {\n if (typeof group !== 'undefined') {\n this.#annotationGroup = group;\n } else {\n this.#annotationGroup = new AnnotationGroup();\n }\n }\n\n /**\n * Check if the annotation group contains a meta data value.\n *\n * @param {string} key The key to check.\n * @returns {boolean} True if the meta data is present.\n */\n hasAnnotationMeta(key) {\n return this.#annotationGroup.hasMeta(key);\n }\n\n /**\n * Set an annotation meta data.\n *\n * @param {string} key The meta data to set.\n * @param {string} value The value of the meta data.\n */\n setAnnotationMeta(key, value) {\n this.#annotationGroup.setMetaValue(key, value);\n }\n\n /**\n * Get draw store details.\n *\n * @deprecated\n */\n getDrawStoreDetails() {\n // does nothing\n }\n\n} // class DrawController\n","import {logger} from '../utils/logger';\nimport {UpdateAnnotationCommand} from './drawCommands';\nimport {validateAnchorPosition} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Annotation} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * Draw shape editor.\n */\nexport class DrawShapeEditor {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Event callback.\n *\n * @type {Function}\n */\n #eventCallback;\n\n /**\n * @param {App} app The associated application.\n * @param {Function} eventCallback Event callback.\n */\n constructor(app, eventCallback) {\n this.#app = app;\n this.#eventCallback = eventCallback;\n }\n\n /**\n * Current shape factory.\n *\n * @type {object}\n */\n #currentFactory = null;\n\n /**\n * Edited shape.\n *\n * @type {Konva.Shape}\n */\n #shape = null;\n\n /**\n * Associated draw layer. Used to bound anchor move.\n *\n * @type {DrawLayer}\n */\n #drawLayer;\n\n /**\n * The associated annotation.\n *\n * @type {Annotation}\n */\n #annotation;\n\n /**\n * Active flag.\n *\n * @type {boolean}\n */\n #isActive = false;\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Set the shape to edit.\n *\n * @param {Konva.Shape} inshape The shape to edit.\n * @param {DrawLayer} drawLayer The associated draw layer.\n * @param {Annotation} annotation The associated annotation.\n */\n setShape(inshape, drawLayer, annotation) {\n this.#shape = inshape;\n this.#drawLayer = drawLayer;\n this.#annotation = annotation;\n\n if (this.#shape) {\n // remove old anchors\n this.#removeAnchors();\n\n this.#currentFactory = annotation.getFactory();\n if (this.#currentFactory === null) {\n throw new Error('Could not find a factory to update shape.');\n }\n\n // add new anchors\n this.#addAnchors();\n }\n }\n\n /**\n * Get the edited shape.\n *\n * @returns {Konva.Shape} The edited shape.\n */\n getShape() {\n return this.#shape;\n }\n\n /**\n * Get the edited annotation.\n *\n * @returns {Annotation} The annotation.\n */\n getAnnotation() {\n return this.#annotation;\n }\n\n /**\n * Get the active flag.\n *\n * @returns {boolean} The active flag.\n */\n isActive() {\n return this.#isActive;\n }\n\n /**\n * Enable the editor. Redraws the layer.\n */\n enable() {\n this.#isActive = true;\n if (this.#shape) {\n this.#setAnchorsVisible(true);\n if (this.#shape.getLayer()) {\n this.#shape.getLayer().draw();\n }\n }\n }\n\n /**\n * Disable the editor. Redraws the layer.\n */\n disable() {\n this.#isActive = false;\n if (this.#shape) {\n this.#setAnchorsVisible(false);\n if (this.#shape.getLayer()) {\n this.#shape.getLayer().draw();\n }\n }\n }\n\n /**\n * Reset the editor.\n */\n reset() {\n this.#shape = undefined;\n this.#drawLayer = undefined;\n this.#annotation = undefined;\n }\n\n /**\n * Reset the anchors.\n */\n resetAnchors() {\n // remove previous controls\n this.#removeAnchors();\n // add anchors\n this.#addAnchors();\n // set them visible\n this.#setAnchorsVisible(true);\n }\n\n /**\n * Apply a function on all anchors.\n *\n * @param {object} func A f(shape) function.\n */\n #applyFuncToAnchors(func) {\n if (this.#shape && this.#shape.getParent()) {\n const anchors = this.#shape.getParent().find('.anchor');\n anchors.forEach(func);\n }\n }\n\n /**\n * Set anchors visibility.\n *\n * @param {boolean} flag The visible flag.\n */\n #setAnchorsVisible(flag) {\n this.#applyFuncToAnchors(function (anchor) {\n anchor.visible(flag);\n });\n }\n\n /**\n * Set anchors active.\n *\n * @param {boolean} flag The active (on/off) flag.\n */\n setAnchorsActive(flag) {\n let func = null;\n if (flag) {\n func = (anchor) => {\n this.#setAnchorOn(anchor);\n };\n } else {\n func = (anchor) => {\n this.#setAnchorOff(anchor);\n };\n }\n this.#applyFuncToAnchors(func);\n }\n\n /**\n * Remove anchors.\n */\n #removeAnchors() {\n this.#applyFuncToAnchors(function (anchor) {\n anchor.remove();\n });\n }\n\n /**\n * Add the shape anchors.\n */\n #addAnchors() {\n // exit if no shape or no layer\n if (!this.#shape || !this.#shape.getLayer()) {\n return;\n }\n // get shape group\n const group = this.#shape.getParent();\n\n // activate and add anchors to group\n const anchors =\n this.#currentFactory.getAnchors(this.#shape, this.#app.getStyle());\n for (let i = 0; i < anchors.length; ++i) {\n // set anchor on\n this.#setAnchorOn(anchors[i]);\n // add the anchor to the group\n group.add(anchors[i]);\n }\n }\n\n /**\n * Get a simple clone of the input anchor.\n *\n * @param {Konva.Shape} anchor The anchor to clone.\n * @returns {object} A clone of the input anchor.\n */\n // #getClone(anchor) {\n // // create closure to properties\n // const parent = anchor.getParent();\n // const id = anchor.id();\n // const x = anchor.x();\n // const y = anchor.y();\n // // create clone object\n // const clone = {};\n // clone.getParent = function () {\n // return parent;\n // };\n // clone.id = function () {\n // return id;\n // };\n // clone.x = function () {\n // return x;\n // };\n // clone.y = function () {\n // return y;\n // };\n // return clone;\n // }\n\n /**\n * Set the anchor on listeners.\n *\n * @param {Konva.Ellipse} anchor The anchor to set on.\n */\n #setAnchorOn(anchor) {\n let originaMathShape;\n\n // drag start listener\n anchor.on('dragstart.edit', (event) => {\n // prevent bubbling upwards\n event.cancelBubble = true;\n // store original math shape\n originaMathShape = this.#annotation.mathShape;\n });\n // drag move listener\n anchor.on('dragmove.edit', (event) => {\n const anchor = event.target;\n if (!(anchor instanceof Konva.Shape)) {\n return;\n }\n // validate the anchor position\n validateAnchorPosition(this.#drawLayer.getBaseSize(), anchor);\n if (typeof this.#currentFactory.constrainAnchorMove !== 'undefined') {\n this.#currentFactory.constrainAnchorMove(anchor);\n }\n\n // udpate annotation\n this.#currentFactory.updateAnnotationOnAnchorMove(\n this.#annotation, anchor);\n // udpate shape\n this.#currentFactory.updateShapeGroupOnAnchorMove(\n this.#annotation, anchor, this.#app.getStyle());\n\n // redraw\n if (anchor.getLayer()) {\n anchor.getLayer().draw();\n } else {\n logger.warn('No layer to draw the anchor!');\n }\n // prevent bubbling upwards\n event.cancelBubble = true;\n });\n // drag end listener\n anchor.on('dragend.edit', (event) => {\n // update annotation command\n const newMathShape = this.#annotation.mathShape;\n const command = new UpdateAnnotationCommand(\n this.#annotation,\n {mathShape: originaMathShape},\n {mathShape: newMathShape},\n this.#drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // fire event manually since command is not executed\n this.#eventCallback({\n type: 'annotationupdate',\n data: this.#annotation\n });\n // update original shape\n originaMathShape = newMathShape;\n\n // prevent bubbling upwards\n event.cancelBubble = true;\n });\n // mouse down listener\n anchor.on('mousedown touchstart', (event) => {\n const anchor = event.target;\n anchor.moveToTop();\n });\n // mouse over styling\n anchor.on('mouseover.edit', (event) => {\n const anchor = event.target;\n if (!(anchor instanceof Konva.Shape)) {\n return;\n }\n // style is handled by the group\n anchor.stroke('#ddd');\n if (anchor.getLayer()) {\n anchor.getLayer().draw();\n } else {\n logger.warn('No layer to draw the anchor!');\n }\n });\n // mouse out styling\n anchor.on('mouseout.edit', (event) => {\n const anchor = event.target;\n if (!(anchor instanceof Konva.Shape)) {\n return;\n }\n // style is handled by the group\n anchor.stroke('#999');\n if (anchor.getLayer()) {\n anchor.getLayer().draw();\n } else {\n logger.warn('No layer to draw the anchor!');\n }\n });\n }\n\n /**\n * Set the anchor off listeners.\n *\n * @param {Konva.Ellipse} anchor The anchor to set off.\n */\n #setAnchorOff(anchor) {\n anchor.off('dragstart.edit');\n anchor.off('dragmove.edit');\n anchor.off('dragend.edit');\n anchor.off('mousedown touchstart');\n anchor.off('mouseover.edit');\n anchor.off('mouseout.edit');\n }\n\n} // class Editor\n","import Konva from 'konva';\n\n/* eslint-disable no-unused-vars */\nimport {Scalar2D} from '../math/scalar';\nimport {DrawLayer} from '../gui/drawLayer';\n/* eslint-enable no-unused-vars */\n\nexport class DrawTrash {\n /**\n * Trash draw: a cross.\n *\n * @type {Konva.Group}\n */\n #trash;\n\n constructor() {\n this.createTrashIcon();\n\n }\n\n /**\n * Creates the trash icon o positionates it.\n */\n createTrashIcon() {\n this.#trash = new Konva.Group();\n // first line of the cross\n const trashLine1 = new Konva.Line({\n points: [-10, -10, 10, 10],\n stroke: 'red'\n });\n // second line of the cross\n const trashLine2 = new Konva.Line({\n points: [10, -10, -10, 10],\n stroke: 'red'\n });\n this.#trash.width(20);\n this.#trash.height(20);\n this.#trash.add(trashLine1);\n this.#trash.add(trashLine2);\n }\n\n /**\n *\n * Activates the trash, by showing the icon into the layer draw layer.\n *\n * @param {DrawLayer} drawLayer The draw layer where to draw.\n */\n activate(drawLayer) {\n const stage = drawLayer.getKonvaStage();\n const scale = stage.scale();\n const konvaLayer = drawLayer.getKonvaLayer();\n const invscale = {x: 1 / scale.x, y: 1 / scale.y};\n this.#trash.x(stage.offset().x + (stage.width() / (2 * scale.x)));\n this.#trash.y(stage.offset().y + (stage.height() / (15 * scale.y)));\n this.#trash.scale(invscale);\n konvaLayer.add(this.#trash);\n // draw\n konvaLayer.draw();\n }\n\n /**\n *\n * Change colour on trash over.\n *\n * @param {Scalar2D} eventPosition The event drag move position.\n * @param {Konva.Group} shapeGroup The shape group whose colour\n * must be change.\n * @param {string} originalShapeColour The original shape colour.\n */\n changeChildrenColourOnTrashHover(eventPosition,\n shapeGroup, originalShapeColour) {\n if (this.isOverTrash(eventPosition)) {\n this.changeGroupChildrenColour(this.#trash, 'orange');\n this.changeGroupChildrenColour(shapeGroup, 'red');\n return;\n\n }\n this.changeGroupChildrenColour(this.#trash, 'red');\n this.changeGroupChildrenColour(shapeGroup, originalShapeColour);\n }\n\n /**\n * Change colour on trash out.\n *\n * @param {Konva.Group} group The group whose colour must be change.\n * @param {string} colour The new colour to be set.\n */\n changeGroupChildrenColour(group, colour) {\n group.getChildren().forEach(function (tshape) {\n if (tshape instanceof Konva.Shape &&\n typeof tshape.stroke !== 'undefined') {\n tshape.stroke(colour);\n }\n });\n }\n\n /**\n * Removes the trash from the draw layer.\n */\n remove() {\n this.#trash.remove();\n }\n\n /**\n * Determines if the event is over trash.\n *\n * @param {Scalar2D} eventPosition The event position.\n * @returns {boolean} True if the event is over trash.\n */\n isOverTrash(eventPosition) {\n const trashHalfWidth =\n this.#trash.width() * Math.abs(this.#trash.scaleX()) / 2;\n const trashHalfHeight =\n this.#trash.height() * Math.abs(this.#trash.scaleY()) / 2;\n return Math.abs(eventPosition.x - this.#trash.x()) < trashHalfWidth &&\n Math.abs(eventPosition.y - this.#trash.y()) < trashHalfHeight;\n }\n\n}","import {\n getMousePoint,\n customUI\n} from '../gui/generic';\nimport {\n RemoveAnnotationCommand,\n UpdateAnnotationCommand\n} from './drawCommands';\nimport {\n isNodeNameShape,\n isNodeNameLabel,\n validateGroupPosition\n} from './drawBounds';\nimport {DrawShapeEditor} from './drawShapeEditor';\nimport {DrawTrash} from './drawTrash';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Scalar2D} from '../math/scalar';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Annotation} from '../image/annotation';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Draw shape handler: handle action on existing shapes.\n */\nexport class DrawShapeHandler {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Shape editor.\n *\n * @type {DrawShapeEditor}\n */\n #shapeEditor;\n\n /**\n * Trash draw: a cross.\n *\n * @type {DrawTrash}\n */\n #trash;\n\n /**\n * Mouse cursor.\n *\n * @type {string}\n */\n #mouseOverCursor = 'pointer';\n\n /**\n * Original mouse cursor.\n *\n * @type {string}\n */\n #originalCursor;\n\n /**\n * Shape with mouse over.\n *\n * @type {Konva.Group}\n */\n #mouseOverShapeGroup;\n\n /**\n * Event callback.\n *\n * @type {Function}\n */\n #eventCallback;\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * @param {App} app The associated application.\n * @param {Function} eventCallback Event callback.\n */\n constructor(app, eventCallback) {\n this.#app = app;\n this.#eventCallback = eventCallback;\n this.#shapeEditor = new DrawShapeEditor(app, eventCallback);\n this.#trash = new DrawTrash();\n }\n\n /**\n * Set the draw editor shape.\n *\n * @param {Konva.Shape} shape The shape to edit.\n * @param {DrawLayer} drawLayer The layer the shape belongs to.\n */\n setEditorShape(shape, drawLayer) {\n if (shape &&\n shape instanceof Konva.Shape &&\n shape !== this.#shapeEditor.getShape()) {\n // disable\n this.#shapeEditor.disable();\n // set shape\n this.#shapeEditor.setShape(\n shape,\n drawLayer,\n drawLayer.getDrawController().getAnnotation(shape.getParent().id()));\n // enable\n this.#shapeEditor.enable();\n }\n }\n\n /**\n * Get the currently edited shape group.\n *\n * @returns {Konva.Group|undefined} The edited group.\n */\n getEditorShapeGroup() {\n let res;\n if (this.#shapeEditor.isActive()) {\n res = this.#shapeEditor.getShape().getParent();\n if (!(res instanceof Konva.Group)) {\n return;\n }\n }\n return res;\n }\n\n /**\n * Get the currently edited annotation.\n *\n * @returns {Annotation|undefined} The edited annotation.\n */\n getEditorAnnotation() {\n let res;\n if (this.#shapeEditor.isActive()) {\n res = this.#shapeEditor.getAnnotation();\n }\n return res;\n }\n\n /**\n * Disable and reset the shape editor.\n */\n disableAndResetEditor() {\n this.#shapeEditor.disable();\n this.#shapeEditor.reset();\n }\n\n /**\n * Get the real position from an event.\n * TODO: use layer method?\n *\n * @param {Scalar2D} index The input index as {x,y}.\n * @param {DrawLayer} drawLayer The origin draw layer.\n * @returns {Scalar2D} The real position in the image as {x,y}.\n */\n #getRealPosition(index, drawLayer) {\n const stage = drawLayer.getKonvaStage();\n return {\n x: stage.offset().x + index.x / stage.scale().x,\n y: stage.offset().y + index.y / stage.scale().y\n };\n }\n\n /**\n * Store specific mouse over cursor.\n *\n * @param {string} cursor The cursor name.\n */\n storeMouseOverCursor(cursor) {\n this.#mouseOverCursor = cursor;\n }\n\n /**\n * Handle shape group mouseover.\n */\n #onMouseOverShapeGroup() {\n // mouse cursor\n this.#originalCursor = document.body.style.cursor;\n document.body.style.cursor = this.#mouseOverCursor;\n // shape opacity\n this.#mouseOverShapeGroup.opacity(0.75);\n }\n\n /**\n * Handle shape group mouseout.\n */\n onMouseOutShapeGroup() {\n // mouse cursor\n if (typeof this.#originalCursor !== 'undefined') {\n document.body.style.cursor = this.#originalCursor;\n this.#originalCursor = undefined;\n }\n // shape opacity\n if (typeof this.#mouseOverShapeGroup !== 'undefined') {\n this.#mouseOverShapeGroup.opacity(1);\n }\n }\n\n /**\n * Add shape group mouse over and out listeners: updates\n * shape group opacity and cursor.\n *\n * @param {Konva.Group} shapeGroup The shape group.\n */\n #addShapeOverListeners(shapeGroup) {\n // handle mouse over\n shapeGroup.on('mouseover', () => {\n this.#mouseOverShapeGroup = shapeGroup;\n this.#onMouseOverShapeGroup();\n });\n\n // handle mouse out\n shapeGroup.on('mouseout', () => {\n this.onMouseOutShapeGroup();\n this.#mouseOverShapeGroup = undefined;\n });\n }\n\n /**\n * Remove shape group mouse over and out listeners.\n *\n * @param {Konva.Group} shapeGroup The shape group.\n */\n #removeShapeOverListeners(shapeGroup) {\n shapeGroup.off('mouseover');\n shapeGroup.off('mouseout');\n }\n\n /**\n * Add shape group listeners.\n *\n * @param {DrawLayer} drawLayer The origin draw layer.\n * @param {Konva.Group} shapeGroup The shape group to set on.\n * @param {Annotation} annotation The associated annotation.\n */\n addShapeListeners(drawLayer, shapeGroup, annotation) {\n // shape mouse over\n this.#addShapeOverListeners(shapeGroup);\n\n const konvaLayer = drawLayer.getKonvaLayer();\n\n // make shape draggable\n const shape = shapeGroup.getChildren(isNodeNameShape)[0];\n if (!(shape instanceof Konva.Shape)) {\n return;\n }\n shape.draggable(true);\n\n // make label draggable\n const label = shapeGroup.getChildren(isNodeNameLabel)[0];\n if (!(label instanceof Konva.Label)) {\n return;\n }\n label.draggable(true);\n\n let isShapeLabelLinked = true;\n\n // cache vars\n let dragStartPos;\n let previousPos;\n let originaMathShape;\n let colour;\n\n // shape listeners ------------------------------------------\n\n // drag start event handling\n shape.on('dragstart.draw', (event) => {\n // store colour\n colour = shape.stroke();\n // store pos\n dragStartPos = {\n x: shape.x(),\n y: shape.y()\n };\n previousPos = {\n x: event.target.x(),\n y: event.target.y()\n };\n // store the original math shape\n originaMathShape = annotation.mathShape;\n\n // display trash\n this.#trash.activate(drawLayer);\n // deactivate anchors to avoid events on null shape\n this.#shapeEditor.setAnchorsActive(false);\n // draw\n konvaLayer.draw();\n });\n // drag move event handling\n shape.on('dragmove.draw', (event) => {\n // move associated shapes (but not label)\n const diff = {\n x: event.target.x() - previousPos.x,\n y: event.target.y() - previousPos.y\n };\n const children = shapeGroup.getChildren();\n for (const child of children) {\n // skip shape and label\n if (child === event.target ||\n (child.name() === 'label' && !isShapeLabelLinked)\n ) {\n continue;\n }\n // move other nodes\n child.move(diff);\n }\n\n // store pos\n previousPos = {\n x: event.target.x(),\n y: event.target.y()\n };\n\n // validate the group position\n validateGroupPosition(drawLayer.getBaseSize(), shapeGroup);\n\n // get appropriate factory\n const factory = annotation.getFactory();\n // update annotation\n factory.updateAnnotationOnTranslation(annotation, diff);\n // update label\n factory.updateLabelContent(annotation, shapeGroup, this.#app.getStyle());\n\n // highlight trash when on it\n const mousePoint = getMousePoint(event.evt);\n const offset = {\n x: mousePoint.getX(),\n y: mousePoint.getY()\n };\n const eventPos = this.#getRealPosition(offset, drawLayer);\n this.#trash.changeChildrenColourOnTrashHover(eventPos,\n shapeGroup, colour);\n // draw\n konvaLayer.draw();\n });\n // drag end event handling\n shape.on('dragend.draw', (event) => {\n // remove trash\n this.#trash.remove();\n // activate(false) will also trigger a dragend.draw\n if (typeof event === 'undefined' ||\n typeof event.evt === 'undefined') {\n return;\n }\n const pos = {x: shape.x(), y: shape.y()};\n // delete case\n const mousePoint = getMousePoint(event.evt);\n const offset = {\n x: mousePoint.getX(),\n y: mousePoint.getY()\n };\n const eventPos = this.#getRealPosition(offset, drawLayer);\n if (this.#trash.isOverTrash(eventPos)) {\n // compensate for the drag translation\n shapeGroup.x(dragStartPos.x);\n shapeGroup.y(dragStartPos.y);\n // disable editor\n this.#shapeEditor.disable();\n this.#shapeEditor.reset();\n this.#trash.changeGroupChildrenColour(shapeGroup, colour);\n // reset math shape (for undo)\n annotation.mathShape = originaMathShape;\n\n // create remove annotation command\n const command = new RemoveAnnotationCommand(\n annotation,\n drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command: triggers draw remove\n command.execute();\n\n // reset cursor\n this.onMouseOutShapeGroup();\n } else {\n const translation = {\n x: pos.x - dragStartPos.x,\n y: pos.y - dragStartPos.y\n };\n if (translation.x !== 0 || translation.y !== 0) {\n // update annotation command\n const newMathShape = annotation.mathShape;\n const command = new UpdateAnnotationCommand(\n annotation,\n {mathShape: originaMathShape},\n {mathShape: newMathShape},\n drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // fire event manually since command is not executed\n this.#eventCallback({\n type: 'annotationupdate',\n data: annotation\n });\n // update original shape\n originaMathShape = newMathShape;\n }\n // reset anchors\n this.#shapeEditor.setAnchorsActive(true);\n this.#shapeEditor.resetAnchors();\n }\n // draw\n konvaLayer.draw();\n // reset start position\n dragStartPos = {\n x: shape.x(),\n y: shape.y()\n };\n });\n\n // label listeners ------------------------------------------\n let originalLabelPosition;\n\n // drag start event handling\n label.on('dragstart.draw', (/*event*/) => {\n // unlink shape and label at first label move\n isShapeLabelLinked = false;\n // store pos\n dragStartPos = {\n x: label.x(),\n y: label.y()\n };\n // store original position\n originalLabelPosition = annotation.labelPosition;\n });\n // drag end event handling\n label.on('dragend.draw', (/*event*/) => {\n const translation = {\n x: label.x() - dragStartPos.x,\n y: label.y() - dragStartPos.y\n };\n if (translation.x !== 0 || translation.y !== 0) {\n // update annotation command\n const newLabelPosition = new Point2D(label.x(), label.y());\n const command = new UpdateAnnotationCommand(\n annotation,\n {labelPosition: originalLabelPosition},\n {labelPosition: newLabelPosition},\n drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // fire event manually since command is not executed\n this.#eventCallback({\n type: 'annotationupdate',\n data: annotation\n });\n // update original position\n originalLabelPosition = newLabelPosition;\n }\n dragStartPos = {x: shape.x(), y: shape.y()};\n });\n\n // double click handling: update label\n shapeGroup.on('dblclick', () => {\n // original text expr\n const originalTextExpr = annotation.textExpr;\n\n const onSaveCallback = (annotation) => {\n // new text expr\n const newTextExpr = annotation.textExpr;\n // create annotation update command\n const command = new UpdateAnnotationCommand(\n annotation,\n {textExpr: originalTextExpr},\n {textExpr: newTextExpr},\n drawLayer.getDrawController()\n );\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command\n command.execute();\n };\n\n // call roi dialog\n customUI.openRoiDialog(annotation, onSaveCallback);\n });\n }\n\n /**\n * Remove shape group listeners.\n *\n * @param {Konva.Group} shapeGroup The shape group to set off.\n */\n removeShapeListeners(shapeGroup) {\n // mouse over\n this.#removeShapeOverListeners(shapeGroup);\n // remove listeners from shape\n const shape = shapeGroup.getChildren(isNodeNameShape)[0];\n if (shape instanceof Konva.Shape) {\n shape.draggable(false);\n shape.off('dragstart.draw');\n shape.off('dragmove.draw');\n shape.off('dragend.draw');\n shape.off('dblclick');\n }\n // remove listeners from label\n const label = shapeGroup.getChildren(isNodeNameLabel)[0];\n if (label instanceof Konva.Label) {\n label.draggable(false);\n label.off('dragstart.draw');\n label.off('dragend.draw');\n }\n }\n} // DrawShapeHandler class","import {ListenerHandler} from '../utils/listen';\nimport {DrawController} from '../app/drawController';\nimport {getScaledOffset} from './layerGroup';\nimport {InteractionEventNames} from './generic';\nimport {logger} from '../utils/logger';\nimport {AddAnnotationCommand} from '../tools/drawCommands';\nimport {\n isNodeWithId,\n isPositionNode\n} from '../tools/drawBounds';\nimport {Style} from '../gui/style';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point, Point3D} from '../math/point';\nimport {Index} from '../math/index';\nimport {Vector3D} from '../math/vector';\nimport {Scalar2D, Scalar3D} from '../math/scalar';\nimport {PlaneHelper} from '../image/planeHelper';\nimport {Annotation, AnnotationGroup} from '../image/annotation';\nimport {DrawShapeHandler} from '../tools/drawShapeHandler';\n/* eslint-enable no-unused-vars */\n\n/**\n * Debug function to output the layer hierarchy as text.\n *\n * @param {object} layer The Konva layer.\n * @param {string} prefix A display prefix (used in recursion).\n * @returns {string} A text representation of the hierarchy.\n */\n// function getHierarchyLog(layer, prefix) {\n// if (typeof prefix === 'undefined') {\n// prefix = '';\n// }\n// const kids = layer.getChildren();\n// let log = prefix + '|__ ' + layer.name() + ': ' + layer.id() + '\\n';\n// for (let i = 0; i < kids.length; ++i) {\n// log += getHierarchyLog(kids[i], prefix + ' ');\n// }\n// return log;\n// }\n\n/**\n * Draw layer.\n */\nexport class DrawLayer {\n\n /**\n * The container div.\n *\n * @type {HTMLDivElement}\n */\n #containerDiv;\n\n /**\n * Konva stage.\n *\n * @type {Konva.Stage}\n */\n #konvaStage = null;\n\n /**\n * The layer base size as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSize;\n\n /**\n * The layer base spacing as {x,y}.\n *\n * @type {Scalar2D}\n */\n #baseSpacing;\n\n /**\n * The layer fit scale.\n *\n * @type {Scalar2D}\n */\n #fitScale = {x: 1, y: 1};\n\n /**\n * The layer flip scale.\n *\n * @type {Scalar3D}\n */\n #flipScale = {x: 1, y: 1, z: 1};\n\n /**\n * The base layer offset.\n *\n * @type {Scalar2D}\n */\n #baseOffset = {x: 0, y: 0};\n\n /**\n * The view offset.\n *\n * @type {Scalar2D}\n */\n #viewOffset = {x: 0, y: 0};\n\n /**\n * The zoom offset.\n *\n * @type {Scalar2D}\n */\n #zoomOffset = {x: 0, y: 0};\n\n /**\n * The flip offset.\n *\n * @type {Scalar2D}\n */\n #flipOffset = {x: 0, y: 0};\n\n /**\n * The draw controller.\n *\n * @type {DrawController}\n */\n #drawController;\n\n /**\n * The plane helper.\n *\n * @type {PlaneHelper}\n */\n #planeHelper;\n\n /**\n * The associated data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Current position group id.\n *\n * @type {string}\n */\n #currentPosGroupId = null;\n\n /**\n * Draw shape handler.\n *\n * @type {DrawShapeHandler|undefined}\n */\n #shapeHandler;\n\n /**\n * @param {HTMLDivElement} containerDiv The layer div, its id will be used\n * as this layer id.\n */\n constructor(containerDiv) {\n this.#containerDiv = containerDiv;\n // specific css class name\n this.#containerDiv.className += ' drawLayer';\n }\n\n /**\n * Set the draw shape handler.\n *\n * @param {DrawShapeHandler|undefined} handler The shape handler.\n */\n setShapeHandler(handler) {\n this.#shapeHandler = handler;\n }\n\n /**\n * Get the associated data id.\n *\n * @returns {string} The id.\n */\n getDataId() {\n return this.#dataId;\n }\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get the Konva stage.\n *\n * @returns {Konva.Stage} The stage.\n */\n getKonvaStage() {\n return this.#konvaStage;\n }\n\n /**\n * Get the Konva layer.\n *\n * @returns {Konva.Layer} The layer.\n */\n getKonvaLayer() {\n // there should only be one layer\n return this.#konvaStage.getLayers()[0];\n }\n\n /**\n * Get the draw controller.\n *\n * @returns {DrawController} The controller.\n */\n getDrawController() {\n return this.#drawController;\n }\n\n /**\n * Set the plane helper.\n *\n * @param {PlaneHelper} helper The helper.\n */\n setPlaneHelper(helper) {\n this.#planeHelper = helper;\n }\n\n // common layer methods [start] ---------------\n\n /**\n * Get the id of the layer.\n *\n * @returns {string} The string id.\n */\n getId() {\n return this.#containerDiv.id;\n }\n\n /**\n * Remove the HTML element from the DOM.\n */\n removeFromDOM() {\n this.#containerDiv.remove();\n }\n\n /**\n * Get the layer base size (without scale).\n *\n * @returns {Scalar2D} The size as {x,y}.\n */\n getBaseSize() {\n return this.#baseSize;\n }\n\n /**\n * Get the layer opacity.\n *\n * @returns {number} The opacity ([0:1] range).\n */\n getOpacity() {\n return this.#konvaStage.opacity();\n }\n\n /**\n * Set the layer opacity.\n *\n * @param {number} alpha The opacity ([0:1] range).\n */\n setOpacity(alpha) {\n this.#konvaStage.opacity(Math.min(Math.max(alpha, 0), 1));\n }\n\n /**\n * Add a flip offset along the layer X axis.\n */\n addFlipOffsetX() {\n // flip offset\n const scale = this.#konvaStage.scale();\n const size = this.#konvaStage.size();\n this.#flipOffset.x += size.width / scale.x;\n // apply\n const offset = this.#konvaStage.offset();\n offset.x += this.#flipOffset.x;\n this.#konvaStage.offset(offset);\n }\n\n /**\n * Add a flip offset along the layer Y axis.\n */\n addFlipOffsetY() {\n // flip offset\n const scale = this.#konvaStage.scale();\n const size = this.#konvaStage.size();\n this.#flipOffset.y += size.height / scale.y;\n // apply\n const offset = this.#konvaStage.offset();\n offset.y += this.#flipOffset.y;\n this.#konvaStage.offset(offset);\n }\n\n /**\n * Flip the scale along the layer X axis.\n */\n flipScaleX() {\n this.#flipScale.x *= -1;\n }\n\n /**\n * Flip the scale along the layer Y axis.\n */\n flipScaleY() {\n this.#flipScale.y *= -1;\n }\n\n /**\n * Flip the scale along the layer Z axis.\n */\n flipScaleZ() {\n this.#flipScale.z *= -1;\n }\n\n /**\n * Set the layer scale.\n *\n * @param {Scalar3D} newScale The scale as {x,y,z}.\n * @param {Point3D} [center] The scale center.\n */\n setScale(newScale, center) {\n const orientedNewScale =\n this.#planeHelper.getTargetOrientedPositiveXYZ({\n x: newScale.x * this.#flipScale.x,\n y: newScale.y * this.#flipScale.y,\n z: newScale.z * this.#flipScale.z,\n });\n const finalNewScale = {\n x: this.#fitScale.x * orientedNewScale.x,\n y: this.#fitScale.y * orientedNewScale.y\n };\n\n const offset = this.#konvaStage.offset();\n\n if (Math.abs(newScale.x) === 1 &&\n Math.abs(newScale.y) === 1 &&\n Math.abs(newScale.z) === 1) {\n // reset zoom offset for scale=1\n const resetOffset = {\n x: offset.x - this.#zoomOffset.x,\n y: offset.y - this.#zoomOffset.y\n };\n // store new offset\n this.#zoomOffset = {x: 0, y: 0};\n this.#konvaStage.offset(resetOffset);\n } else {\n if (typeof center !== 'undefined') {\n let worldCenter = this.#planeHelper.getPlaneOffsetFromOffset3D({\n x: center.getX(),\n y: center.getY(),\n z: center.getZ()\n });\n // center was obtained with viewLayer.displayToMainPlanePos\n // compensated for baseOffset\n // TODO: justify...\n worldCenter = {\n x: worldCenter.x + this.#baseOffset.x,\n y: worldCenter.y + this.#baseOffset.y\n };\n\n const newOffset = getScaledOffset(\n offset, this.#konvaStage.scale(), finalNewScale, worldCenter);\n\n const newZoomOffset = {\n x: this.#zoomOffset.x + newOffset.x - offset.x,\n y: this.#zoomOffset.y + newOffset.y - offset.y\n };\n // store new offset\n this.#zoomOffset = newZoomOffset;\n this.#konvaStage.offset(newOffset);\n }\n }\n\n this.#konvaStage.scale(finalNewScale);\n // update labels\n this.#updateLabelScale(finalNewScale);\n }\n\n /**\n * Set the layer offset.\n *\n * @param {Scalar3D} newOffset The offset as {x,y,z}.\n */\n setOffset(newOffset) {\n const planeNewOffset =\n this.#planeHelper.getPlaneOffsetFromOffset3D(newOffset);\n this.#konvaStage.offset({\n x: planeNewOffset.x +\n this.#viewOffset.x +\n this.#baseOffset.x +\n this.#zoomOffset.x +\n this.#flipOffset.x,\n y: planeNewOffset.y +\n this.#viewOffset.y +\n this.#baseOffset.y +\n this.#zoomOffset.y +\n this.#flipOffset.y\n });\n }\n\n /**\n * Set the base layer offset. Updates the layer offset.\n *\n * @param {Vector3D} scrollOffset The scroll offset vector.\n * @param {Vector3D} planeOffset The plane offset vector.\n * @returns {boolean} True if the offset was updated.\n */\n setBaseOffset(scrollOffset, planeOffset) {\n const scrollIndex = this.#planeHelper.getNativeScrollIndex();\n const newOffset = this.#planeHelper.getPlaneOffsetFromOffset3D({\n x: scrollIndex === 0 ? scrollOffset.getX() : planeOffset.getX(),\n y: scrollIndex === 1 ? scrollOffset.getY() : planeOffset.getY(),\n z: scrollIndex === 2 ? scrollOffset.getZ() : planeOffset.getZ(),\n });\n const needsUpdate = this.#baseOffset.x !== newOffset.x ||\n this.#baseOffset.y !== newOffset.y;\n // reset offset if needed\n if (needsUpdate) {\n const offset = this.#konvaStage.offset();\n this.#konvaStage.offset({\n x: offset.x - this.#baseOffset.x + newOffset.x,\n y: offset.y - this.#baseOffset.y + newOffset.y\n });\n this.#baseOffset = newOffset;\n }\n return needsUpdate;\n }\n\n /**\n * Display the layer.\n *\n * @param {boolean} flag Whether to display the layer or not.\n */\n display(flag) {\n this.#containerDiv.style.display = flag ? '' : 'none';\n }\n\n /**\n * Check if the layer is visible.\n *\n * @returns {boolean} True if the layer is visible.\n */\n isVisible() {\n return this.#containerDiv.style.display === '';\n }\n\n /**\n * Draw the content (imageData) of the layer.\n * The imageData variable needs to be set.\n */\n draw() {\n this.#konvaStage.draw();\n }\n\n /**\n * Initialise the layer: set the canvas and context.\n *\n * @param {Scalar2D} size The image size as {x,y}.\n * @param {Scalar2D} spacing The image spacing as {x,y}.\n */\n initialise(size, spacing) {\n // set locals\n this.#baseSize = size;\n this.#baseSpacing = spacing;\n\n // create stage\n this.#konvaStage = new Konva.Stage({\n container: this.#containerDiv,\n width: this.#baseSize.x,\n height: this.#baseSize.y,\n listening: false\n });\n // reset style\n // (avoids a not needed vertical scrollbar)\n this.#konvaStage.getContent().setAttribute('style', '');\n\n // create layer\n const konvaLayer = new Konva.Layer({\n listening: false,\n visible: true\n });\n this.#konvaStage.add(konvaLayer);\n }\n\n /**\n * Set the annotation group.\n *\n * @param {AnnotationGroup} annotationGroup The annotation group.\n * @param {string} dataId The associated data id.\n * @param {object} exeCallback The undo stack callback.\n */\n setAnnotationGroup(annotationGroup, dataId, exeCallback) {\n this.#dataId = dataId;\n // local listeners\n annotationGroup.addEventListener('annotationadd', (event) => {\n // draw annotation\n this.#addAnnotationDraw(event.data, true);\n this.getKonvaLayer().draw();\n });\n annotationGroup.addEventListener('annotationupdate', (event) => {\n // update annotation draw\n this.#updateAnnotationDraw(event.data);\n this.getKonvaLayer().draw();\n });\n annotationGroup.addEventListener('annotationremove', (event) => {\n // remove annotation draw\n this.#removeAnnotationDraw(event.data);\n this.getKonvaLayer().draw();\n });\n\n // create draw controller\n this.#drawController = new DrawController(annotationGroup);\n\n // annotations are allready in the annotation list,\n // -> no need to add them, just draw and save command\n if (annotationGroup.getLength() !== 0) {\n for (const annotation of annotationGroup.getList()) {\n // draw annotation\n this.#addAnnotationDraw(annotation, false);\n // create the draw command\n const command = new AddAnnotationCommand(\n annotation, this.getDrawController());\n // add command to undo stack\n exeCallback(command);\n }\n }\n }\n\n /**\n * Get the position group id for an annotation.\n *\n * @param {Annotation} annotation The target annotation.\n * @returns {string|undefined} The group id.\n */\n #getPosGroupId(annotation) {\n const originIndex = annotation.getOriginIndex();\n if (typeof originIndex === 'undefined') {\n console.log('Unknown reference origin for annotation: ' +\n annotation.referenceSopUID);\n return;\n }\n return originIndex.toStringId([2]);\n }\n\n /**\n * Find the shape group associated to an annotation.\n *\n * @param {Annotation} annotation The annotation.\n * @returns {Konva.Group|undefined} The shape group.\n */\n #findShapeGroup(annotation) {\n let res;\n\n const posGroupId = this.#getPosGroupId(annotation);\n const layerChildren = this.getKonvaLayer().getChildren(\n isNodeWithId(posGroupId));\n if (layerChildren.length !== 0) {\n const posGroup = layerChildren[0];\n if (!(posGroup instanceof Konva.Group)) {\n return;\n }\n const posChildren = posGroup.getChildren(\n isNodeWithId(annotation.id));\n if (posChildren.length !== 0 &&\n posChildren[0] instanceof Konva.Group) {\n res = posChildren[0];\n }\n }\n return res;\n }\n\n /**\n * Draw an annotation: create the shape group and add it to\n * the Konva layer.\n *\n * @param {Annotation} annotation The annotation to draw.\n * @param {boolean} visible The position group visibility.\n */\n #addAnnotationDraw(annotation, visible) {\n const posGroupId = this.#getPosGroupId(annotation);\n // Get or create position-group if it does not exist and\n // append it to konvaLayer\n let posGroup = this.getKonvaLayer().getChildren(\n isNodeWithId(posGroupId))[0];\n if (typeof posGroup === 'undefined') {\n posGroup = new Konva.Group({\n id: posGroupId,\n name: 'position-group',\n visible: visible\n });\n this.getKonvaLayer().add(posGroup);\n }\n if (!(posGroup instanceof Konva.Group)) {\n return;\n };\n\n const style = new Style();\n const stage = this.getKonvaStage();\n style.setZoomScale(stage.scale());\n\n // shape group (use first one since it will be removed from\n // the group when we change it)\n const factory = annotation.getFactory();\n const shapeGroup = factory.createShapeGroup(annotation, style);\n // add group to posGroup (switches its parent)\n posGroup.add(shapeGroup);\n\n // activate shape if possible\n if (visible &&\n typeof this.#shapeHandler !== 'undefined'\n ) {\n this.#shapeHandler.addShapeListeners(this, shapeGroup, annotation);\n }\n }\n\n /**\n * Remove an annotation draw.\n *\n * @param {Annotation} annotation The annotation to remove.\n */\n #removeAnnotationDraw(annotation) {\n const shapeGroup = this.#findShapeGroup(annotation);\n if (!(shapeGroup instanceof Konva.Group)) {\n return;\n };\n shapeGroup.remove();\n }\n\n /**\n * Update an annotation draw.\n *\n * @param {Annotation} annotation The annotation to update.\n */\n #updateAnnotationDraw(annotation) {\n // update quantification after math shape update\n annotation.updateQuantification();\n // update draw\n this.#removeAnnotationDraw(annotation);\n this.#addAnnotationDraw(annotation, true);\n }\n\n /**\n * Fit the layer to its parent container.\n *\n * @param {Scalar2D} containerSize The container size as {x,y}.\n * @param {number} divToWorldSizeRatio The div to world size ratio.\n * @param {Scalar2D} fitOffset The fit offset as {x,y}.\n */\n fitToContainer(containerSize, divToWorldSizeRatio, fitOffset) {\n // update konva\n this.#konvaStage.width(containerSize.x);\n this.#konvaStage.height(containerSize.y);\n\n // fit scale\n const divToImageSizeRatio = {\n x: divToWorldSizeRatio * this.#baseSpacing.x,\n y: divToWorldSizeRatio * this.#baseSpacing.y\n };\n // #scale = inputScale * fitScale * flipScale\n // flipScale does not change here, we can omit it\n // newScale = (#scale / fitScale) * newFitScale\n const newScale = {\n x: this.#konvaStage.scale().x * divToImageSizeRatio.x / this.#fitScale.x,\n y: this.#konvaStage.scale().y * divToImageSizeRatio.y / this.#fitScale.y\n };\n\n // set scales if different from previous\n if (this.#konvaStage.scale().x !== newScale.x ||\n this.#konvaStage.scale().y !== newScale.y) {\n this.#fitScale = divToImageSizeRatio;\n this.#konvaStage.scale(newScale);\n }\n\n // view offset\n const newViewOffset = {\n x: fitOffset.x / divToImageSizeRatio.x,\n y: fitOffset.y / divToImageSizeRatio.y\n };\n // flip offset\n const scaledImageSize = {\n x: containerSize.x / divToImageSizeRatio.x,\n y: containerSize.y / divToImageSizeRatio.y\n };\n const newFlipOffset = {\n x: this.#flipOffset.x !== 0 ? scaledImageSize.x : 0,\n y: this.#flipOffset.y !== 0 ? scaledImageSize.y : 0,\n };\n\n // set offsets if different from previous\n if (this.#viewOffset.x !== newViewOffset.x ||\n this.#viewOffset.y !== newViewOffset.y ||\n this.#flipOffset.x !== newFlipOffset.x ||\n this.#flipOffset.y !== newFlipOffset.y) {\n // update global offset\n this.#konvaStage.offset({\n x: this.#konvaStage.offset().x +\n newViewOffset.x - this.#viewOffset.x +\n newFlipOffset.x - this.#flipOffset.x,\n y: this.#konvaStage.offset().y +\n newViewOffset.y - this.#viewOffset.y +\n newFlipOffset.y - this.#flipOffset.y,\n });\n // update private local offsets\n this.#flipOffset = newFlipOffset;\n this.#viewOffset = newViewOffset;\n }\n }\n\n /**\n * Check the visibility of a given group.\n *\n * @param {string} id The id of the group.\n * @returns {boolean} True if the group is visible.\n */\n isGroupVisible(id) {\n // get the group\n const group = this.getGroup(id);\n if (typeof group === 'undefined') {\n return false;\n }\n // get visibility\n return group.isVisible();\n }\n\n /**\n * Toggle the visibility of a given group.\n *\n * @param {string} id The id of the group.\n * @returns {boolean} False if the group cannot be found.\n */\n toggleGroupVisibility(id) {\n // get the group\n const group = this.getGroup(id);\n if (typeof group === 'undefined') {\n return false;\n }\n // toggle visible\n group.visible(!group.isVisible());\n\n // udpate\n this.draw();\n\n return true;\n }\n\n /**\n * Delete a Draw from the stage.\n *\n * @deprecated\n * @param {string} _id The id of the group to delete.\n * @param {Function} _exeCallback The callback to call once the\n * DeleteCommand has been executed.\n */\n deleteDraw(_id, _exeCallback) {\n // does nothing\n }\n\n /**\n * Delete all Draws from the stage.\n *\n * @deprecated\n * @param {Function} _exeCallback The callback to call once the\n * DeleteCommand has been executed.\n */\n deleteDraws(_exeCallback) {\n // does nothing\n }\n\n /**\n * Get the total number of draws of this layer\n * (at all positions).\n *\n * @returns {number|undefined} The total number of draws.\n */\n getNumberOfDraws() {\n const posGroups = this.getKonvaLayer().getChildren();\n let count = 0;\n for (const posGroup of posGroups) {\n if (posGroup instanceof Konva.Group) {\n count += posGroup.getChildren().length;\n }\n }\n return count;\n }\n\n /**\n * Enable and listen to container interaction events.\n */\n bindInteraction() {\n this.#konvaStage.listening(true);\n // allow pointer events\n this.#containerDiv.style.pointerEvents = 'auto';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n this.#containerDiv.addEventListener(names[i], this.#fireEvent);\n }\n }\n\n /**\n * Disable and stop listening to container interaction events.\n */\n unbindInteraction() {\n this.#konvaStage.listening(false);\n // disable pointer events\n this.#containerDiv.style.pointerEvents = 'none';\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n this.#containerDiv.removeEventListener(names[i], this.#fireEvent);\n }\n }\n\n /**\n * Set the current position.\n *\n * @param {Point} position The new position.\n * @param {Index} index The new index.\n * @returns {boolean} True if the position was updated.\n */\n setCurrentPosition(position, index) {\n this.activateDrawLayer(\n index, this.#planeHelper.getScrollIndex());\n // TODO: add check\n return true;\n }\n\n /**\n * Activate the current draw layer.\n *\n * @param {Index} index The current position.\n * @param {number} scrollIndex The scroll index.\n */\n activateDrawLayer(index, scrollIndex) {\n // TODO: add layer info\n // get and store the position group id\n const dims = [scrollIndex];\n for (let j = 3; j < index.length(); ++j) {\n dims.push(j);\n }\n this.#currentPosGroupId = index.toStringId(dims);\n\n // get all position groups\n const posGroups = this.getKonvaLayer().getChildren(isPositionNode);\n // reset or set the visible property\n let visible;\n for (let i = 0, leni = posGroups.length; i < leni; ++i) {\n visible = false;\n if (posGroups[i].id() === this.#currentPosGroupId) {\n visible = true;\n }\n // group members inherit the visible property\n posGroups[i].visible(visible);\n }\n\n // show current draw layer\n this.getKonvaLayer().draw();\n }\n\n /**\n * Get the current position group.\n *\n * @returns {Konva.Group|undefined} The Konva.Group.\n */\n getCurrentPosGroup() {\n // get position groups\n const posGroups = this.getKonvaLayer().getChildren((node) => {\n return node.id() === this.#currentPosGroupId;\n });\n // if one group, use it\n // if no group, create one\n let posGroup;\n if (posGroups.length === 1) {\n if (posGroups[0] instanceof Konva.Group) {\n posGroup = posGroups[0];\n }\n } else if (posGroups.length === 0) {\n posGroup = new Konva.Group();\n posGroup.name('position-group');\n posGroup.id(this.#currentPosGroupId);\n posGroup.visible(true); // dont inherit\n // add new group to layer\n this.getKonvaLayer().add(posGroup);\n } else {\n logger.warn('Unexpected number of draw position groups.');\n }\n // return\n return posGroup;\n }\n\n /**\n * Get the non current position groups. Used to stop listeners.\n *\n * @returns {object[]} The groups that do not have the current position id.\n */\n getNonCurrentPosGroup() {\n // get position groups\n return this.getKonvaLayer().getChildren((node) => {\n return node.id() !== this.#currentPosGroupId;\n });\n }\n\n /**\n * Get a Konva group using its id.\n *\n * @param {string} id The group id.\n * @returns {object|undefined} The Konva group.\n */\n getGroup(id) {\n const group = this.getKonvaLayer().findOne('#' + id);\n if (typeof group === 'undefined') {\n logger.warn('Cannot find node with id: ' + id\n );\n }\n return group;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n event.srclayerid = this.getId();\n event.dataid = this.#dataId;\n this.#listenerHandler.fireEvent(event);\n };\n\n // common layer methods [end] ---------------\n\n /**\n * Update label scale: compensate for it so\n * that label size stays visually the same.\n *\n * @param {Scalar2D} scale The scale to compensate for as {x,y}.\n */\n #updateLabelScale(scale) {\n // same formula as in style::applyZoomScale:\n // compensate for scale and times 2 so that font 10 looks like a 10\n const ratioX = 2 / scale.x;\n const ratioY = 2 / scale.y;\n // compensate scale for labels\n const labels = this.#konvaStage.find('Label');\n for (let i = 0; i < labels.length; ++i) {\n labels[i].scale({x: ratioX, y: ratioY});\n }\n }\n\n} // DrawLayer class\n","import {Point, Point3D} from '../math/point';\nimport {WindowLevel} from '../image/windowLevel';\nimport {LayerGroup} from './layerGroup';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewLayer} from '../gui/viewLayer';\nimport {DrawLayer} from '../gui/drawLayer';\n/* eslint-enable no-unused-vars */\n\n/**\n * Window/level binder.\n */\nexport class WindowLevelBinder {\n getEventType = function () {\n return 'wlchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const viewLayers = layerGroup.getViewLayersByDataId(event.dataid);\n if (viewLayers.length !== 0) {\n const vc = viewLayers[0].getViewController();\n if (event.value.length === 2) {\n const wl = new WindowLevel(event.value[0], event.value[1]);\n vc.setWindowLevel(wl);\n }\n if (event.value.length === 3) {\n vc.setWindowLevelPreset(event.value[2]);\n }\n }\n };\n };\n}\n\n/**\n * Colour map binder.\n */\nexport class ColourMapBinder {\n getEventType = function () {\n return 'colourmapchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const viewLayers = layerGroup.getViewLayersByDataId(event.dataid);\n if (viewLayers.length !== 0) {\n const vc = viewLayers[0].getViewController();\n vc.setColourMap(event.value[0]);\n }\n };\n };\n}\n\n/**\n * Position binder.\n */\nexport class PositionBinder {\n getEventType = function () {\n return 'positionchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const pointValues = event.value[1];\n const vc = layerGroup.getActiveViewLayer().getViewController();\n // handle different number of dimensions\n const currentPos = vc.getCurrentPosition();\n const currentDims = currentPos.length();\n const inputDims = pointValues.length;\n if (inputDims !== currentDims) {\n if (inputDims === currentDims - 1) {\n // add missing dim, for ex: input 3D -> current 4D\n pointValues.push(currentPos.get(currentDims - 1));\n } else if (inputDims === currentDims + 1) {\n // remove extra dim, for ex: input 4D -> current 3D\n pointValues.pop();\n }\n }\n vc.setCurrentPosition(new Point(pointValues));\n };\n };\n}\n\n/**\n * Zoom binder.\n */\nexport class ZoomBinder {\n getEventType = function () {\n return 'zoomchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n const scale = {\n x: event.value[0],\n y: event.value[1],\n z: event.value[2]\n };\n let center;\n if (event.value.length === 6) {\n center = new Point3D(\n event.value[3],\n event.value[4],\n event.value[5]\n );\n }\n layerGroup.setScale(scale, center);\n layerGroup.draw();\n };\n };\n}\n\n/**\n * Offset binder.\n */\nexport class OffsetBinder {\n getEventType = function () {\n return 'offsetchange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n layerGroup.setOffset({\n x: event.value[0],\n y: event.value[1],\n z: event.value[2]\n });\n layerGroup.draw();\n };\n };\n}\n\n/**\n * Opacity binder. Only propagates to view layers of the same data.\n */\nexport class OpacityBinder {\n getEventType = function () {\n return 'opacitychange';\n };\n getCallback = function (layerGroup) {\n return function (event) {\n // exit if no data id\n if (typeof event.dataid === 'undefined') {\n return;\n }\n // propagate to first view layer\n const viewLayers = layerGroup.getViewLayersByDataId(event.dataid);\n if (viewLayers.length !== 0) {\n viewLayers[0].setOpacity(event.value);\n viewLayers[0].draw();\n }\n };\n };\n}\n\n/**\n * List of binders.\n */\nexport const binderList = {\n WindowLevelBinder,\n PositionBinder,\n ZoomBinder,\n OffsetBinder,\n OpacityBinder,\n ColourMapBinder\n};\n\n/**\n * Stage: controls a list of layer groups and their\n * synchronisation.\n */\nexport class Stage {\n\n /**\n * Associated layer groups.\n *\n * @type {LayerGroup[]}\n */\n #layerGroups = [];\n\n /**\n * Active layer group index.\n *\n * @type {number|undefined}\n */\n #activeLayerGroupIndex;\n\n /**\n * Image smoothing flag.\n *\n * @type {boolean}\n */\n #imageSmoothing = false;\n\n // layer group binders\n #binders = [];\n // binder callbacks\n #callbackStore = null;\n\n /**\n * Get the layer group at the given index.\n *\n * @param {number} index The index.\n * @returns {LayerGroup|undefined} The layer group.\n */\n getLayerGroup(index) {\n return this.#layerGroups[index];\n }\n\n /**\n * Get the number of layer groups that form the stage.\n *\n * @returns {number} The number of layer groups.\n */\n getNumberOfLayerGroups() {\n return this.#layerGroups.length;\n }\n\n /**\n * Get the active layer group.\n *\n * @returns {LayerGroup|undefined} The layer group.\n */\n getActiveLayerGroup() {\n return this.getLayerGroup(this.#activeLayerGroupIndex);\n }\n\n /**\n * Set the active layer group.\n *\n * @param {number} index The layer group index.\n */\n setActiveLayerGroup(index) {\n if (typeof this.getLayerGroup(index) !== 'undefined') {\n this.#activeLayerGroupIndex = index;\n } else {\n logger.warn('No layer group to set as active with index: ' +\n index);\n }\n }\n\n /**\n * Get the view layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {ViewLayer[]} The layers.\n */\n getViewLayersByDataId(dataId) {\n let res = [];\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n res = res.concat(this.#layerGroups[i].getViewLayersByDataId(dataId));\n }\n return res;\n }\n\n /**\n * Get the draw layers associated to a data id.\n *\n * @param {string} dataId The data id.\n * @returns {DrawLayer[]} The layers.\n */\n getDrawLayersByDataId(dataId) {\n let res = [];\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n res = res.concat(this.#layerGroups[i].getDrawLayersByDataId(dataId));\n }\n return res;\n }\n\n /**\n * Add a layer group to the list.\n *\n * The new layer group will be marked as the active layer group.\n *\n * @param {object} htmlElement The HTML element of the layer group.\n * @returns {LayerGroup} The newly created layer group.\n */\n addLayerGroup(htmlElement) {\n this.#activeLayerGroupIndex = this.#layerGroups.length;\n const layerGroup = new LayerGroup(htmlElement);\n layerGroup.setImageSmoothing(this.#imageSmoothing);\n // add to storage\n const isBound = this.#callbackStore && this.#callbackStore.length !== 0;\n if (isBound) {\n this.unbindLayerGroups();\n }\n this.#layerGroups.push(layerGroup);\n if (isBound) {\n this.bindLayerGroups();\n }\n // return created group\n return layerGroup;\n }\n\n /**\n * Get a layer group from an HTML element id.\n *\n * @param {string} id The element id to find.\n * @returns {LayerGroup} The layer group.\n */\n getLayerGroupByDivId(id) {\n return this.#layerGroups.find(function (item) {\n return item.getDivId() === id;\n });\n }\n\n /**\n * Set the layer groups binders.\n *\n * @param {Array} list The list of binder objects.\n */\n setBinders(list) {\n if (typeof list === 'undefined' || list === null) {\n throw new Error('Cannot set null or undefined binders');\n }\n if (this.#binders.length !== 0) {\n this.unbindLayerGroups();\n }\n this.#binders = list.slice();\n this.bindLayerGroups();\n }\n\n /**\n * Empty the layer group list.\n */\n empty() {\n this.unbindLayerGroups();\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].empty();\n }\n this.#layerGroups = [];\n this.#activeLayerGroupIndex = undefined;\n }\n\n /**\n * Remove all layers for a specific data.\n *\n * @param {string} dataId The data to remove its layers.\n */\n removeLayersByDataId(dataId) {\n for (const layerGroup of this.#layerGroups) {\n layerGroup.removeLayersByDataId(dataId);\n }\n }\n\n /**\n * Remove a layer group from this stage.\n *\n * @param {LayerGroup} layerGroup The layer group to remove.\n */\n removeLayerGroup(layerGroup) {\n // find layer\n const index = this.#layerGroups.findIndex((item) => item === layerGroup);\n if (index === -1) {\n throw new Error('Cannot find layerGroup to remove');\n }\n // unbind\n this.unbindLayerGroups();\n // empty layer group\n layerGroup.empty();\n // remove from storage\n this.#layerGroups.splice(index, 1);\n // update active index\n if (this.#activeLayerGroupIndex === index) {\n this.#activeLayerGroupIndex = undefined;\n }\n // bind\n this.bindLayerGroups();\n }\n\n /**\n * Reset the stage: calls reset on all layer groups.\n */\n reset() {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].reset();\n }\n }\n\n /**\n * Draw the stage: calls draw on all layer groups.\n */\n draw() {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].draw();\n }\n }\n\n /**\n * Fit to container: synchronise the div to world size ratio\n * of the group layers.\n */\n fitToContainer() {\n // find the minimum ratio\n let minRatio;\n const hasRatio = [];\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n const ratio = this.#layerGroups[i].getDivToWorldSizeRatio();\n if (typeof ratio !== 'undefined') {\n hasRatio.push(i);\n if (typeof minRatio === 'undefined' || ratio < minRatio) {\n minRatio = ratio;\n }\n }\n }\n // exit if no ratio\n if (typeof minRatio === 'undefined') {\n return;\n }\n // apply min ratio to layers\n for (let j = 0; j < this.#layerGroups.length; ++j) {\n if (hasRatio.includes(j)) {\n this.#layerGroups[j].fitToContainer(minRatio);\n }\n }\n }\n\n /**\n * Bind the layer groups of the stage.\n */\n bindLayerGroups() {\n if (this.#layerGroups.length === 0 ||\n this.#layerGroups.length === 1 ||\n this.#binders.length === 0) {\n return;\n }\n // create callback store\n this.#callbackStore = new Array(this.#layerGroups.length);\n // add listeners\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n for (let j = 0; j < this.#binders.length; ++j) {\n this.#addEventListeners(i, this.#binders[j]);\n }\n }\n }\n\n /**\n * Unbind the layer groups of the stage.\n */\n unbindLayerGroups() {\n if (this.#layerGroups.length === 0 ||\n this.#layerGroups.length === 1 ||\n this.#binders.length === 0 ||\n !this.#callbackStore) {\n return;\n }\n // remove listeners\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n for (let j = 0; j < this.#binders.length; ++j) {\n this.#removeEventListeners(i, this.#binders[j]);\n }\n }\n // clear callback store\n this.#callbackStore = null;\n }\n\n /**\n * Set the imageSmoothing flag value.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#imageSmoothing = flag;\n // set for existing layer groups\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n this.#layerGroups[i].setImageSmoothing(flag);\n }\n }\n\n /**\n * Get the binder callback function for a given layer group index.\n * The function is created if not yet stored.\n *\n * @param {object} binder The layer binder.\n * @param {number} index The index of the associated layer group.\n * @returns {Function} The binder function.\n */\n #getBinderCallback(binder, index) {\n if (typeof this.#callbackStore[index] === 'undefined') {\n this.#callbackStore[index] = [];\n }\n const store = this.#callbackStore[index];\n let binderObj = store.find(function (elem) {\n return elem.binder === binder;\n });\n if (typeof binderObj === 'undefined') {\n // create new callback object\n binderObj = {\n binder: binder,\n callback: (event) => {\n // stop listeners\n this.#removeEventListeners(index, binder);\n // apply binder\n binder.getCallback(this.#layerGroups[index])(event);\n // re-start listeners\n this.#addEventListeners(index, binder);\n }\n };\n this.#callbackStore[index].push(binderObj);\n }\n return binderObj.callback;\n }\n\n /**\n * Add event listeners for a given layer group index and binder.\n *\n * @param {number} index The index of the associated layer group.\n * @param {object} binder The layer binder.\n */\n #addEventListeners(index, binder) {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n if (i !== index) {\n this.#layerGroups[index].addEventListener(\n binder.getEventType(),\n this.#getBinderCallback(binder, i)\n );\n }\n }\n }\n\n /**\n * Remove event listeners for a given layer group index and binder.\n *\n * @param {number} index The index of the associated layer group.\n * @param {object} binder The layer binder.\n */\n #removeEventListeners(index, binder) {\n for (let i = 0; i < this.#layerGroups.length; ++i) {\n if (i !== index) {\n this.#layerGroups[index].removeEventListener(\n binder.getEventType(),\n this.#getBinderCallback(binder, i)\n );\n }\n }\n }\n\n} // class Stage\n","import {Index} from '../math/index';\nimport {colourNameToHex} from '../utils/colour';\nimport {WindowLevel} from '../image/windowLevel';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * State class.\n * Saves: data url/path, display info.\n *\n * History:\n * - v0.5 (dwv 0.30.0, 12/2021):\n * - store position as array,\n * - new draw position group key.\n * - v0.4 (dwv 0.29.0, 06/2021):\n * - move drawing details into meta property,\n * - remove scale center and translation, add offset.\n * - v0.3 (dwv v0.23.0, 03/2018):\n * - new drawing structure, drawings are now the full layer object and\n * using toObject to avoid saving a string representation,\n * - new details structure: simple array of objects referenced by draw ids.\n * - v0.2 (dwv v0.17.0, 12/2016):\n * - adds draw details: array [nslices][nframes] of detail objects.\n * - v0.1 (dwv v0.15.0, 07/2016):\n * - adds version,\n * - drawings: array [nslices][nframes] with all groups.\n * - initial release (dwv v0.10.0, 05/2015), no version number:\n * - content: window-center, window-width, position, scale,\n * scaleCenter, translation, drawings,\n * - drawings: array [nslices] with all groups.\n */\nexport class State {\n /**\n * Save the application state as JSON.\n *\n * @param {App} app The associated application.\n * @returns {string} The state as a JSON string.\n */\n toJSON(app) {\n const layerGroup = app.getActiveLayerGroup();\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n const position = viewController.getCurrentIndex();\n const drawLayer = layerGroup.getActiveDrawLayer();\n const drawController = drawLayer.getDrawController();\n const wl = viewController.getWindowLevel();\n // return a JSON string\n return JSON.stringify({\n version: '0.5',\n 'window-center': wl.center,\n 'window-width': wl.width,\n position: position.getValues(),\n scale: app.getAddedScale(),\n offset: app.getOffset(),\n drawings: drawLayer.getKonvaLayer().toObject(),\n drawingsDetails: drawController.getDrawStoreDetails()\n });\n }\n\n /**\n * Load an application state from JSON.\n *\n * @param {string} json The state as a JSON string.\n * @returns {object} The state object.\n */\n fromJSON(json) {\n const data = JSON.parse(json);\n let res = null;\n if (data.version === '0.1') {\n res = this.#readV01(data);\n } else if (data.version === '0.2') {\n res = this.#readV02(data);\n } else if (data.version === '0.3') {\n res = this.#readV03(data);\n } else if (data.version === '0.4') {\n res = this.#readV04(data);\n } else if (data.version === '0.5') {\n res = this.#readV05(data);\n } else {\n throw new Error('Unknown state file format version: \\'' +\n data.version + '\\'.');\n }\n return res;\n }\n\n /**\n * Load an application state from JSON.\n *\n * @param {App} app The app to apply the state to.\n * @param {object} data The state data.\n */\n apply(app, data) {\n const layerGroup = app.getActiveLayerGroup();\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n // display\n const wl = new WindowLevel(data['window-center'], data['window-width']);\n viewController.setWindowLevel(wl);\n // position is index...\n viewController.setCurrentIndex(new Index(data.position));\n // apply saved scale on top of current base one\n const baseScale = app.getActiveLayerGroup().getBaseScale();\n let scale = null;\n let offset = null;\n if (typeof data.scaleCenter !== 'undefined') {\n scale = {\n x: data.scale * baseScale.x,\n y: data.scale * baseScale.y,\n z: 1\n };\n // ---- transform translation (now) ----\n // Tx = -offset.x * scale.x\n // => offset.x = -Tx / scale.x\n // ---- transform translation (before) ----\n // origin.x = centerX - (centerX - origin.x) * (newZoomX / zoom.x);\n // (zoom.x -> initial zoom = base scale, origin.x = 0)\n // Tx = origin.x + (trans.x * zoom.x)\n const originX = data.scaleCenter.x - data.scaleCenter.x * data.scale;\n const originY = data.scaleCenter.y - data.scaleCenter.y * data.scale;\n const oldTx = originX + data.translation.x * scale.x;\n const oldTy = originY + data.translation.y * scale.y;\n offset = {\n x: -oldTx / scale.x,\n y: -oldTy / scale.y,\n z: 0\n };\n } else {\n scale = {\n x: data.scale.x * baseScale.x,\n y: data.scale.y * baseScale.y,\n z: baseScale.z\n };\n offset = {\n x: data.offset.x,\n y: data.offset.y,\n z: 0\n };\n }\n app.getActiveLayerGroup().setScale(scale);\n app.getActiveLayerGroup().setOffset(offset);\n // render to draw the view layer\n app.render(app.getDataIds()[0]); //todo: fix\n // drawings (will draw the draw layer)\n app.setDrawings(data.drawings, data.drawingsDetails);\n }\n\n /**\n * Read an application state from an Object in v0.1 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV01(data) {\n // v0.1 -> v0.2\n const v02DAndD = v01Tov02DrawingsAndDetails(data.drawings);\n // v0.2 -> v0.3, v0.4\n data.drawings = v02Tov03Drawings(v02DAndD.drawings).toObject();\n data.drawingsDetails = v03Tov04DrawingsDetails(\n v02DAndD.drawingsDetails);\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n\n /**\n * Read an application state from an Object in v0.2 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV02(data) {\n // v0.2 -> v0.3, v0.4\n data.drawings = v02Tov03Drawings(data.drawings).toObject();\n data.drawingsDetails = v03Tov04DrawingsDetails(\n v02Tov03DrawingsDetails(data.drawingsDetails));\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n\n /**\n * Read an application state from an Object in v0.3 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV03(data) {\n // v0.3 -> v0.4\n data.drawingsDetails = v03Tov04DrawingsDetails(data.drawingsDetails);\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n\n /**\n * Read an application state from an Object in v0.4 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV04(data) {\n // v0.4 -> v0.5\n data = v04Tov05Data(data);\n data.drawings = v04Tov05Drawings(data.drawings);\n return data;\n }\n /**\n * Read an application state from an Object in v0.5 format.\n *\n * @param {object} data The Object representation of the state.\n * @returns {object} The state object.\n */\n #readV05(data) {\n return data;\n }\n\n} // State class\n\n/**\n * Convert drawings from v0.2 to v0.3:\n * - v0.2: one layer per slice/frame,\n * - v0.3: one layer, one group per slice. `setDrawing` expects the full stage.\n *\n * @param {Array} drawings An array of drawings.\n * @returns {object} The layer with the converted drawings.\n */\nfunction v02Tov03Drawings(drawings) {\n // Auxiliar variables\n let group, groupShapes, parentGroup;\n // Avoid errors when dropping multiple states\n //drawLayer.getChildren().each(function(node){\n // node.visible(false);\n //});\n\n /**\n * Get the draw group id for a given position.\n *\n * @param {Index} currentPosition The current position.\n * @returns {string} The group id.\n */\n function getDrawPositionGroupId(currentPosition) {\n const sliceNumber = currentPosition.get(2);\n const frameNumber = currentPosition.length() === 4\n ? currentPosition.get(3) : 0;\n return 'slice-' + sliceNumber + '_frame-' + frameNumber;\n }\n\n const drawLayer = new Konva.Layer({\n listening: false,\n visible: true\n });\n\n // Get the positions-groups data\n const groupDrawings = typeof drawings === 'string'\n ? JSON.parse(drawings) : drawings;\n // Iterate over each position-groups\n for (let k = 0, lenk = groupDrawings.length; k < lenk; ++k) {\n // Iterate over each frame\n for (let f = 0, lenf = groupDrawings[k].length; f < lenf; ++f) {\n groupShapes = groupDrawings[k][f];\n if (groupShapes.length !== 0) {\n // Create position-group set as visible and append it to drawLayer\n parentGroup = new Konva.Group({\n id: getDrawPositionGroupId(new Index([1, 1, k, f])),\n name: 'position-group',\n visible: false\n });\n\n // Iterate over shapes-group\n for (let g = 0, leng = groupShapes.length; g < leng; ++g) {\n // create the konva group\n group = Konva.Node.create(groupShapes[g]);\n // enforce draggable: only the shape was draggable in v0.2,\n // now the whole group is.\n group.draggable(true);\n group.getChildren().forEach(function (gnode) {\n gnode.draggable(false);\n });\n // add to position group\n parentGroup.add(group);\n }\n // add to layer\n drawLayer.add(parentGroup);\n }\n }\n }\n\n return drawLayer;\n}\n\n/**\n * Convert drawings from v0.1 to v0.2:\n * - v0.1: text on its own,\n * - v0.2: text as part of label.\n *\n * @param {Array} inputDrawings An array of drawings.\n * @returns {object} The converted drawings.\n */\nfunction v01Tov02DrawingsAndDetails(inputDrawings) {\n const newDrawings = [];\n const drawingsDetails = {};\n\n let drawGroups;\n let drawGroup;\n // loop over each slice\n for (let k = 0, lenk = inputDrawings.length; k < lenk; ++k) {\n // loop over each frame\n newDrawings[k] = [];\n for (let f = 0, lenf = inputDrawings[k].length; f < lenf; ++f) {\n // draw group\n drawGroups = inputDrawings[k][f];\n const newFrameDrawings = [];\n // Iterate over shapes-group\n for (let g = 0, leng = drawGroups.length; g < leng; ++g) {\n // create konva group from input\n drawGroup = Konva.Node.create(drawGroups[g]);\n // force visible (not set in state)\n drawGroup.visible(true);\n // label position\n let pos = {x: 0, y: 0};\n // update shape colour\n const kshape = drawGroup.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n kshape.stroke(colourNameToHex(kshape.stroke()));\n // special line case\n if (drawGroup.name() === 'line-group') {\n // update name\n drawGroup.name('ruler-group');\n // add ticks\n const ktick0 = new Konva.Line({\n points: [kshape.points()[0],\n kshape.points()[1],\n kshape.points()[0],\n kshape.points()[1]],\n name: 'shape-tick0'\n });\n drawGroup.add(ktick0);\n const ktick1 = new Konva.Line({\n points: [kshape.points()[2],\n kshape.points()[3],\n kshape.points()[2],\n kshape.points()[3]],\n name: 'shape-tick1'\n });\n drawGroup.add(ktick1);\n }\n // special protractor case: update arc name\n const karcs = drawGroup.getChildren(function (node) {\n return node.name() === 'arc';\n });\n if (karcs.length === 1) {\n karcs[0].name('shape-arc');\n }\n // get its text\n const ktexts = drawGroup.getChildren(function (node) {\n return node.name() === 'text';\n });\n // update text: move it into a label\n let ktext = new Konva.Text({\n name: 'text',\n text: ''\n });\n if (ktexts.length === 1) {\n pos.x = ktexts[0].x();\n pos.y = ktexts[0].y();\n // remove it from the group\n ktexts[0].remove();\n // use it\n ktext = ktexts[0];\n } else {\n // use shape position if no text\n if (kshape.points().length !== 0) {\n pos = {x: kshape.points()[0],\n y: kshape.points()[1]};\n }\n }\n // create new label with text and tag\n const klabel = new Konva.Label({\n x: pos.x,\n y: pos.y,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag());\n // add label to group\n drawGroup.add(klabel);\n // add group to list\n newFrameDrawings.push(JSON.stringify(drawGroup.toObject()));\n\n // create details (v0.3 format)\n let textExpr = ktext.text();\n const txtLen = textExpr.length;\n let quant = null;\n // adapt to text with flag\n if (drawGroup.name() === 'ruler-group') {\n quant = {\n length: {\n value: parseFloat(textExpr.substring(0, txtLen - 2)),\n unit: textExpr.substring(-2)\n }\n };\n textExpr = '{length}';\n } else if (drawGroup.name() === 'ellipse-group' ||\n drawGroup.name() === 'rectangle-group') {\n quant = {\n surface: {\n value: parseFloat(textExpr.substring(0, txtLen - 3)),\n unit: textExpr.substring(-3)\n }\n };\n textExpr = '{surface}';\n } else if (drawGroup.name() === 'protractor-group' ||\n drawGroup.name() === 'rectangle-group') {\n quant = {\n angle: {\n value: parseFloat(textExpr.substring(0, txtLen - 1)),\n unit: textExpr.substring(-1)\n }\n };\n textExpr = '{angle}';\n }\n // set details\n drawingsDetails[drawGroup.id()] = {\n textExpr: textExpr,\n longText: '',\n quant: quant\n };\n\n }\n newDrawings[k].push(newFrameDrawings);\n }\n }\n\n return {drawings: newDrawings, drawingsDetails: drawingsDetails};\n}\n\n/**\n * Convert drawing details from v0.2 to v0.3:\n * - v0.2: array [nslices][nframes] with all,\n * - v0.3: simple array of objects referenced by draw ids.\n *\n * @param {Array} details An array of drawing details.\n * @returns {object} The converted drawings.\n */\nfunction v02Tov03DrawingsDetails(details) {\n const res = {};\n // Get the positions-groups data\n const groupDetails = typeof details === 'string'\n ? JSON.parse(details) : details;\n // Iterate over each position-groups\n for (let k = 0, lenk = groupDetails.length; k < lenk; ++k) {\n // Iterate over each frame\n for (let f = 0, lenf = groupDetails[k].length; f < lenf; ++f) {\n // Iterate over shapes-group\n for (let g = 0, leng = groupDetails[k][f].length; g < leng; ++g) {\n const group = groupDetails[k][f][g];\n res[group.id] = {\n textExpr: group.textExpr,\n longText: group.longText,\n quant: group.quant\n };\n }\n }\n }\n return res;\n}\n\n/**\n * Convert drawing details from v0.3 to v0.4:\n * - v0.3: properties at group root,\n * - v0.4: properties in group meta object.\n *\n * @param {Array} details An array of drawing details.\n * @returns {object} The converted drawings.\n */\nfunction v03Tov04DrawingsDetails(details) {\n const res = {};\n const keys = Object.keys(details);\n // Iterate over each position-groups\n for (let k = 0, lenk = keys.length; k < lenk; ++k) {\n const detail = details[keys[k]];\n res[keys[k]] = {\n meta: {\n textExpr: detail.textExpr,\n longText: detail.longText,\n quantification: detail.quant\n }\n };\n }\n return res;\n}\n\n/**\n * Convert drawing from v0.4 to v0.5:\n * - v0.4: position as object,\n * - v0.5: position as array.\n *\n * @param {object} data An array of drawing.\n * @returns {object} The converted drawings.\n */\nfunction v04Tov05Data(data) {\n const pos = data.position;\n data.position = [pos.i, pos.j, pos.k];\n return data;\n}\n\n/**\n * Convert drawing from v0.4 to v0.5:\n * - v0.4: draw id as 'slice-0_frame-1',\n * - v0.5: draw id as '#2-0_#3-1'.\n *\n * @param {object} inputDrawings An array of drawing.\n * @returns {object} The converted drawings.\n */\nfunction v04Tov05Drawings(inputDrawings) {\n // Iterate over each position-groups\n const posGroups = inputDrawings.children;\n for (let k = 0, lenk = posGroups.length; k < lenk; ++k) {\n const posGroup = posGroups[k];\n const id = posGroup.attrs.id;\n const ids = id.split('_');\n const sliceNumber = parseInt(ids[0].substring(6), 10); // 'slice-0'\n const frameNumber = parseInt(ids[1].substring(6), 10); // 'frame-0'\n let newId = '#2-';\n if (sliceNumber === 0 && frameNumber !== 0) {\n newId += frameNumber;\n } else {\n newId += sliceNumber;\n }\n posGroup.attrs.id = newId;\n }\n return inputDrawings;\n}\n","import {logger} from './logger';\nimport {splitKeyValueString} from './string';\n\n/**\n * Get an full object URL from a string uri.\n *\n * @param {string} uri A string representing the url.\n * @returns {URL} A URL object.\n */\nexport function getUrlFromUri(uri) {\n // add base to allow for relative urls\n // (base is not used for absolute urls)\n return new URL(uri, window.location.origin);\n}\n\n/**\n * Split an input URI:\n * 'root?key0=val00&key0=val01&key1=val10' returns\n * { base : root, query : [ key0 : [val00, val01], key1 : val1 ] }\n * Returns an empty object if the input string is not correct (null, empty...)\n * or if it is not a query string (no question mark).\n *\n * @param {string} uri The string to split.\n * @returns {object} The split string.\n */\nexport function splitUri(uri) {\n // result\n const result = {};\n // check if query string\n let sepIndex = null;\n if (uri && (sepIndex = uri.indexOf('?')) !== -1) {\n // base: before the '?'\n result.base = uri.substring(0, sepIndex);\n // query : after the '?' and until possible '#'\n let hashIndex = uri.indexOf('#');\n if (hashIndex === -1) {\n hashIndex = uri.length;\n }\n const query = uri.substring(sepIndex + 1, hashIndex);\n // split key/value pairs of the query\n result.query = splitKeyValueString(query);\n }\n // return\n return result;\n}\n\n/**\n * Get the query part, split into an array, of an input URI.\n * The URI scheme is: `base?query#fragment`.\n *\n * @param {string} uri The input URI.\n * @returns {object} The query part, split into an array, of the input URI.\n */\nexport function getUriQuery(uri) {\n // split\n const parts = splitUri(uri);\n // check not empty\n if (Object.keys(parts).length === 0) {\n return null;\n }\n // return query\n return parts.query;\n}\n\n/**\n * Generic URI query decoder.\n * Supports manifest:\n * `[dwv root]?input=encodeURIComponent('[manifest file]')&type=manifest`.\n * Or encoded URI with base and key value/pairs:\n * `[dwv root]?input=encodeURIComponent([root]?key0=value0&key1=value1)`.\n *\n * @param {object} query The query part to the input URI.\n * @param {Function} callback The function to call with the decoded file urls.\n * @param {object} options Optional url request options.\n */\nexport function decodeQuery(query, callback, options) {\n // manifest\n if (query.type && query.type === 'manifest') {\n decodeManifestQuery(query, callback);\n } else {\n // default case: encoded URI with base and key/value pairs\n callback(\n decodeKeyValueUri(query.input, query.dwvReplaceMode),\n options);\n }\n}\n\n/**\n * Decode a Key/Value pair URI. If a key is repeated, the result\n * be an array of base + each key.\n *\n * @param {string} uri The URI to decode.\n * @param {string} replaceMode The key replace mode. Can be:\n * - key (default): keep the key\n * - other than key: do not use the key\n * 'file' is a special case where the '?' of the query is not kept.\n * @returns {string[]} The list of input file urls.\n */\nexport function decodeKeyValueUri(uri, replaceMode) {\n const result = [];\n\n // repeat key replace mode (default to keep key)\n let repeatKeyReplaceMode = 'key';\n if (replaceMode) {\n repeatKeyReplaceMode = replaceMode;\n }\n\n // decode input URI\n const queryUri = decodeURIComponent(uri);\n // get key/value pairs from input URI\n const inputQueryPairs = splitUri(queryUri);\n if (Object.keys(inputQueryPairs).length === 0) {\n result.push(queryUri);\n } else {\n const keys = Object.keys(inputQueryPairs.query);\n // find repeat key\n let repeatKey = null;\n for (let i = 0; i < keys.length; ++i) {\n if (inputQueryPairs.query[keys[i]] instanceof Array) {\n repeatKey = keys[i];\n break;\n }\n }\n\n if (!repeatKey) {\n result.push(queryUri);\n } else {\n const repeatList = inputQueryPairs.query[repeatKey];\n // build base uri\n let baseUrl = inputQueryPairs.base;\n // add '?' when:\n // - base is not empty\n // - the repeatKey is not 'file'\n // root/path/to/?file=0.jpg&file=1.jpg\n if (baseUrl !== '' && repeatKey !== 'file') {\n baseUrl += '?';\n }\n let gotOneArg = false;\n for (let j = 0; j < keys.length; ++j) {\n if (keys[j] !== repeatKey) {\n if (gotOneArg) {\n baseUrl += '&';\n }\n baseUrl += keys[j] + '=' + inputQueryPairs.query[keys[j]];\n gotOneArg = true;\n }\n }\n // append built urls to result\n let url;\n for (let k = 0; k < repeatList.length; ++k) {\n url = baseUrl;\n if (gotOneArg) {\n url += '&';\n }\n if (repeatKeyReplaceMode === 'key') {\n url += repeatKey + '=';\n }\n // other than 'key' mode: do nothing\n url += repeatList[k];\n result.push(url);\n }\n }\n }\n // return\n return result;\n}\n\n/**\n * Decode a manifest query.\n *\n * @external XMLHttpRequest\n * @param {object} query The manifest query: {input, nslices},\n * with input the input URI and nslices the number of slices.\n * @param {Function} callback The function to call with the decoded urls.\n */\nfunction decodeManifestQuery(query, callback) {\n let uri = '';\n if (query.input[0] === '/') {\n uri = window.location.protocol + '//' + window.location.host;\n }\n // TODO: needs to be decoded (decodeURIComponent?\n uri += query.input;\n\n /**\n * Handle error.\n *\n * @param {object} event The error event.\n */\n function onError(event) {\n logger.warn('RequestError while receiving manifest: ' +\n event.target.status);\n }\n\n /**\n * Handle load.\n *\n * @param {object} event The load event.\n */\n function onLoad(event) {\n callback(decodeManifest(event.target.responseXML, query.nslices));\n }\n\n const request = new XMLHttpRequest();\n request.open('GET', decodeURIComponent(uri), true);\n request.responseType = 'document';\n request.onload = onLoad;\n request.onerror = onError;\n request.send(null);\n}\n\n/**\n * Decode an XML manifest.\n *\n * @param {object} manifest The manifest to decode.\n * @param {number} nslices The number of slices to load.\n * @returns {string[]} The decoded manifest.\n */\nexport function decodeManifest(manifest, nslices) {\n const result = [];\n // wado url\n const wadoElement = manifest.getElementsByTagName('wado_query');\n const wadoURL = wadoElement[0].getAttribute('wadoURL');\n const rootURL = wadoURL + '?requestType=WADO&contentType=application/dicom&';\n // patient list\n const patientList = manifest.getElementsByTagName('Patient');\n if (patientList.length > 1) {\n logger.warn('More than one patient, loading first one.');\n }\n // study list\n const studyList = patientList[0].getElementsByTagName('Study');\n if (studyList.length > 1) {\n logger.warn('More than one study, loading first one.');\n }\n const studyUID = studyList[0].getAttribute('StudyInstanceUID');\n // series list\n const seriesList = studyList[0].getElementsByTagName('Series');\n if (seriesList.length > 1) {\n logger.warn('More than one series, loading first one.');\n }\n const seriesUID = seriesList[0].getAttribute('SeriesInstanceUID');\n // instance list\n const instanceList = seriesList[0].getElementsByTagName('Instance');\n // loop on instances and push links\n let max = instanceList.length;\n if (nslices < max) {\n max = nslices;\n }\n for (let i = 0; i < max; ++i) {\n const sopInstanceUID = instanceList[i].getAttribute('SOPInstanceUID');\n const link = rootURL +\n '&studyUID=' + studyUID +\n '&seriesUID=' + seriesUID +\n '&objectUID=' + sopInstanceUID;\n result.push(link);\n }\n // return\n return result;\n}\n","import {ListenerHandler} from '../utils/listen';\n\n/**\n * UndoStack class.\n */\nexport class UndoStack {\n /**\n * Array of commands.\n *\n * @type {Array}\n */\n #stack = [];\n\n /**\n * Current command index.\n *\n * @type {number}\n */\n #curCmdIndex = 0;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get the stack size.\n *\n * @returns {number} The size of the stack.\n */\n getStackSize() {\n return this.#stack.length;\n }\n\n /**\n * Get the current stack index.\n *\n * @returns {number} The stack index.\n */\n getCurrentStackIndex() {\n return this.#curCmdIndex;\n }\n\n /**\n * Add a command to the stack.\n *\n * @param {object} cmd The command to add.\n * @fires UndoStack#undoadd\n */\n add(cmd) {\n // clear commands after current index\n this.#stack = this.#stack.slice(0, this.#curCmdIndex);\n // store command\n this.#stack.push(cmd);\n // increment index\n ++this.#curCmdIndex;\n /**\n * Command add to undo stack event.\n *\n * @event UndoStack#undoadd\n * @type {object}\n * @property {string} command The name of the command added to the\n * undo stack.\n */\n this.#fireEvent({\n type: 'undoadd',\n command: cmd.getName()\n });\n }\n\n /**\n * Undo the last command.\n *\n * @fires UndoStack#undo\n */\n undo() {\n // a bit inefficient...\n if (this.#curCmdIndex > 0) {\n // decrement command index\n --this.#curCmdIndex;\n // undo last command\n this.#stack[this.#curCmdIndex].undo();\n /**\n * Command undo event.\n *\n * @event UndoStack#undo\n * @type {object}\n * @property {string} command The name of the undone command.\n */\n this.#fireEvent({\n type: 'undo',\n command: this.#stack[this.#curCmdIndex].getName()\n });\n }\n }\n\n /**\n * Redo the last command.\n *\n * @fires UndoStack#redo\n */\n redo() {\n if (this.#curCmdIndex < this.#stack.length) {\n // run last command\n this.#stack[this.#curCmdIndex].execute();\n /**\n * Command redo event.\n *\n * @event UndoStack#redo\n * @type {object}\n * @property {string} command The name of the redone command.\n */\n this.#fireEvent({\n type: 'redo',\n command: this.#stack[this.#curCmdIndex].getName()\n });\n // increment command index\n ++this.#curCmdIndex;\n }\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // UndoStack class\n","import {InteractionEventNames} from '../gui/generic';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {LayerGroup} from '../gui/layerGroup';\nimport {ViewLayer} from '../gui/viewLayer';\nimport {DrawLayer} from '../gui/drawLayer';\n/* eslint-enable no-unused-vars */\n\n/**\n * Toolbox controller.\n */\nexport class ToolboxController {\n\n /**\n * List of tools to control.\n *\n * @type {object}\n */\n #toolList;\n\n /**\n * Selected tool.\n *\n * @type {object}\n */\n #selectedTool = null;\n\n /**\n * Callback store to allow attach/detach.\n *\n * @type {Array}\n */\n #callbackStore = [];\n\n /**\n * Current layers bound to tool.\n *\n * @type {object}\n */\n #boundLayers = {};\n\n /**\n * @param {object} toolList The list of tool objects.\n */\n constructor(toolList) {\n this.#toolList = toolList;\n }\n\n /**\n * Initialise.\n */\n init() {\n for (const key in this.#toolList) {\n this.#toolList[key].init();\n }\n // enable shortcuts\n this.enableShortcuts(true);\n }\n\n /**\n * Enable or disable shortcuts. The 'init' methods enables shortcuts\n * by default. Call this method after init to disable shortcuts.\n *\n * @param {boolean} flag True to enable shortcuts.\n */\n enableShortcuts(flag) {\n if (flag) {\n window.addEventListener('keydown',\n this.#getCallback('window', 'keydown'), true);\n } else {\n window.removeEventListener('keydown',\n this.#getCallback('window', 'keydown'), true);\n }\n }\n\n /**\n * Get the tool list.\n *\n * @returns {Array} The list of tool objects.\n */\n getToolList() {\n return this.#toolList;\n }\n\n /**\n * Check if a tool is in the tool list.\n *\n * @param {string} name The name to check.\n * @returns {boolean} The tool list element for the given name.\n */\n hasTool(name) {\n return typeof this.getToolList()[name] !== 'undefined';\n }\n\n /**\n * Get the selected tool.\n *\n * @returns {object} The selected tool.\n */\n getSelectedTool() {\n return this.#selectedTool;\n }\n\n /**\n * Get the selected tool event handler.\n *\n * @param {string} eventType The event type, for example\n * mousedown, touchstart...\n * @returns {Function} The event handler.\n */\n getSelectedToolEventHandler(eventType) {\n return this.getSelectedTool()[eventType];\n }\n\n /**\n * Set the selected tool.\n *\n * @param {string} name The name of the tool.\n */\n setSelectedTool(name) {\n // check if we have it\n if (!this.hasTool(name)) {\n throw new Error('Unknown tool: \\'' + name + '\\'');\n }\n // de-activate previous\n if (this.#selectedTool) {\n this.#selectedTool.activate(false);\n }\n // set internal var\n this.#selectedTool = this.#toolList[name];\n // activate new tool\n this.#selectedTool.activate(true);\n }\n\n /**\n * Set the selected tool live features.\n *\n * @param {object} list The list of features.\n */\n setToolFeatures(list) {\n if (this.getSelectedTool()) {\n this.getSelectedTool().setFeatures(list);\n }\n }\n\n /**\n * Listen to layer interaction events.\n *\n * @param {LayerGroup} layerGroup The associated layer group.\n * @param {ViewLayer|DrawLayer} layer The layer to listen to.\n */\n bindLayerGroup(layerGroup, layer) {\n const divId = layerGroup.getDivId();\n // listen to active layer changes\n layerGroup.addEventListener(\n 'activelayerchange', this.#getActiveLayerChangeHandler(divId));\n // bind the layer\n this.#internalBindLayerGroup(divId, layer);\n }\n\n /**\n * Bind a layer group to this controller.\n *\n * @param {string} layerGroupDivId The layer group div id.\n * @param {ViewLayer|DrawLayer} layer The layer.\n */\n #internalBindLayerGroup(layerGroupDivId, layer) {\n // remove from local list if preset\n if (typeof this.#boundLayers[layerGroupDivId] !== 'undefined') {\n this.#unbindLayer(this.#boundLayers[layerGroupDivId]);\n }\n // replace layer in local list\n this.#boundLayers[layerGroupDivId] = layer;\n // bind layer\n this.#bindLayer(layer);\n }\n\n /**\n * Get an active layer change handler.\n *\n * @param {string} divId The associated layer group div id.\n * @returns {Function} The event handler.\n */\n #getActiveLayerChangeHandler(divId) {\n return (event) => {\n const layer = event.value[0];\n this.#internalBindLayerGroup(divId, layer);\n };\n }\n\n /**\n * Add canvas mouse and touch listeners to a layer.\n *\n * @param {ViewLayer|DrawLayer} layer The layer to start listening to.\n */\n #bindLayer(layer) {\n layer.bindInteraction();\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n layer.addEventListener(names[i],\n this.#getCallback(layer.getId(), names[i]));\n }\n }\n\n /**\n * Remove canvas mouse and touch listeners to a layer.\n *\n * @param {ViewLayer|DrawLayer} layer The layer to stop listening to.\n */\n #unbindLayer(layer) {\n layer.unbindInteraction();\n // interaction events\n const names = InteractionEventNames;\n for (let i = 0; i < names.length; ++i) {\n layer.removeEventListener(names[i],\n this.#getCallback(layer.getId(), names[i]));\n }\n }\n\n /**\n * Mou(se) and (T)ouch event handler. This function just determines\n * the mouse/touch position relative to the canvas element.\n * It then passes it to the current tool.\n *\n * @param {string} layerId The layer id.\n * @param {string} eventType The event type.\n * @returns {object} A callback for the provided layer and event.\n */\n #getCallback(layerId, eventType) {\n if (typeof this.#callbackStore[layerId] === 'undefined') {\n this.#callbackStore[layerId] = [];\n }\n\n if (typeof this.#callbackStore[layerId][eventType] === 'undefined') {\n const applySelectedTool = (event) => {\n // make sure we have a tool\n if (this.#selectedTool) {\n const func = this.#selectedTool[event.type];\n if (func) {\n func(event);\n }\n }\n };\n // store callback\n this.#callbackStore[layerId][eventType] = applySelectedTool;\n }\n\n return this.#callbackStore[layerId][eventType];\n }\n\n} // class ToolboxController\n","/**\n * Multiple progresses handler.\n * Stores a multi dimensional list of progresses to allow to\n * calculate a global progress.\n *\n */\nexport class MultiProgressHandler {\n\n /**\n * List of progresses.\n * First dimension is a list of item for which the progress is recorded,\n * for example file names.\n * Second dimension is a list of possible progresses, for example\n * the progress of the download and the progress of the decoding.\n *\n * @type {Array}\n */\n #progresses = [];\n\n /**\n * Number of dimensions.\n *\n * @type {number}\n */\n #numberOfDimensions = 2;\n\n /**\n * Progress callback.\n *\n * @type {Function}\n */\n #callback;\n\n /**\n * @param {Function} callback The function to pass the global progress to.\n */\n constructor(callback) {\n this.#callback = callback;\n }\n\n /**\n * Set the number of dimensions.\n *\n * @param {number} num The number.\n */\n setNumberOfDimensions(num) {\n this.#numberOfDimensions = num;\n }\n\n /**\n * Set the number of data to load.\n *\n * @param {number} n The number of data to load.\n */\n setNToLoad(n) {\n for (let i = 0; i < n; ++i) {\n this.#progresses[i] = [];\n for (let j = 0; j < this.#numberOfDimensions; ++j) {\n this.#progresses[i][j] = 0;\n }\n }\n }\n\n /**\n * Handle a load progress.\n * Call the member callback with a global event.\n *\n * @param {object} event The progress event.\n */\n onprogress = (event) => {\n // check event\n if (!event.lengthComputable) {\n return;\n }\n if (typeof event.subindex === 'undefined') {\n return;\n }\n if (typeof event.index === 'undefined') {\n return;\n }\n // calculate percent\n const percent = (event.loaded * 100) / event.total;\n // set percent for index\n this.#progresses[event.index][event.subindex] = percent;\n\n // item progress\n let item = null;\n if (typeof event.item !== 'undefined') {\n item = event.item;\n } else {\n item = {\n loaded: this.#getItemProgress(event.index),\n total: 100,\n source: event.source\n };\n }\n\n // call callback with a global event\n this.#callback({\n lengthComputable: true,\n loaded: this.#getGlobalPercent(),\n total: 100,\n item: item\n });\n };\n\n /**\n * Get the item load percent.\n *\n * @param {number} index The index of the item.\n * @returns {number} The load percentage.\n */\n #getItemProgress(index) {\n let sum = 0;\n for (let j = 0; j < this.#numberOfDimensions; ++j) {\n sum += this.#progresses[index][j];\n }\n return sum / this.#numberOfDimensions;\n }\n\n /**\n * Get the global load percent including the provided one.\n *\n * @returns {number} The accumulated percentage.\n */\n #getGlobalPercent() {\n let sum = 0;\n const lenprog = this.#progresses.length;\n for (let i = 0; i < lenprog; ++i) {\n sum += this.#getItemProgress(i);\n }\n return Math.round(sum / lenprog);\n }\n\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Create a mono progress event handler.\n *\n * @param {number} index The index of the data.\n * @param {number} subindex The sub-index of the data.\n * @returns {eventFn} A progress handler function.\n */\n getMonoProgressHandler(index, subindex) {\n return (event) => {\n event.index = index;\n event.subindex = subindex;\n this.onprogress(event);\n };\n }\n\n /**\n * Create a mono progress event handler with an undefined index.\n * Warning: The caller handles the progress index.\n *\n * @param {number} subindex The sub-index of the data.\n * @returns {eventFn} A progress handler function.\n */\n getUndefinedMonoProgressHandler(subindex) {\n return (event) => {\n event.subindex = subindex;\n this.onprogress(event);\n };\n }\n}\n","import {endsWith, getRootPath} from '../utils/string';\nimport {MultiProgressHandler} from '../utils/progress';\nimport {getFileListFromDicomDir} from '../dicom/dicomElementsWrapper';\nimport {loaderList} from './loaderList';\n\n// url content types\nexport const urlContentTypes = {\n Text: 0,\n ArrayBuffer: 1\n};\n\n/**\n * Urls loader.\n */\nexport class UrlsLoader {\n\n /**\n * Input data.\n *\n * @type {string[]}\n */\n #inputData = null;\n\n /**\n * Array of launched requests.\n *\n * @type {XMLHttpRequest[]}\n */\n #requests = [];\n\n /**\n * Data loader.\n *\n * @type {object}\n */\n #runningLoader = null;\n\n /**\n * Number of loaded data.\n *\n * @type {number}\n */\n #nLoad = 0;\n\n /**\n * Number of load end events.\n *\n * @type {number}\n */\n #nLoadend = 0;\n\n /**\n * Flag to know if the load is aborting.\n *\n * @type {boolean}\n */\n #aborting;\n\n /**\n * The default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Store the current input.\n *\n * @param {string[]} data The input data.\n */\n #storeInputData(data) {\n this.#inputData = data;\n // reset counters\n this.#nLoad = 0;\n this.#nLoadend = 0;\n // reset flag\n this.#aborting = false;\n // clear storage\n this.#clearStoredRequests();\n this.#clearStoredLoader();\n }\n\n /**\n * Store a launched request.\n *\n * @param {XMLHttpRequest} request The launched request.\n */\n #storeRequest(request) {\n this.#requests.push(request);\n }\n\n /**\n * Clear the stored requests.\n *\n */\n #clearStoredRequests() {\n this.#requests = [];\n }\n\n /**\n * Store the launched loader.\n *\n * @param {object} loader The launched loader.\n */\n #storeLoader(loader) {\n this.#runningLoader = loader;\n }\n\n /**\n * Clear the stored loader.\n *\n */\n #clearStoredLoader() {\n this.#runningLoader = null;\n }\n\n /**\n * Increment the number of loaded data\n * and call onload if loaded all data.\n *\n * @param {object} _event The load data event.\n */\n #addLoad = (_event) => {\n this.#nLoad++;\n // call onload when all is loaded\n // (not using the input event since it is\n // an individual load)\n if (this.#nLoad === this.#inputData.length) {\n this.onload({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Increment the counter of load end events\n * and run callbacks when all done, erroneus or not.\n *\n * @param {object} _event The load end event.\n */\n #addLoadend = (_event) => {\n this.#nLoadend++;\n // call onloadend when all is run\n // (not using the input event since it is\n // an individual load end)\n if (this.#nLoadend === this.#inputData.length) {\n this.onloadend({\n source: this.#inputData\n });\n }\n };\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Augment a callback event with a srouce.\n *\n * @param {object} callback The callback to augment its event.\n * @param {object} source The source to add to the event.\n * @returns {eventFn} The augmented callback.\n */\n #augmentCallbackEvent(callback, source) {\n return (event) => {\n event.source = source;\n callback(event);\n };\n }\n\n /**\n * Load a list of URLs or a DICOMDIR.\n *\n * @param {string[]} data The list of urls to load.\n * @param {object} [options] Load options.\n */\n load(data, options) {\n // send start event\n this.onloadstart({\n source: data\n });\n\n // check if DICOMDIR case\n if (data.length === 1 &&\n (endsWith(data[0], 'DICOMDIR') ||\n endsWith(data[0], '.dcmdir'))) {\n this.#loadDicomDir(data[0], options);\n } else {\n this.#loadUrls(data, options);\n }\n }\n\n /**\n * Get a load handler for a data element.\n *\n * @param {object} loader The associated loader.\n * @param {string} dataElement The data element.\n * @param {number} i The index of the element.\n * @returns {eventFn} A load handler.\n */\n #getLoadHandler(loader, dataElement, i) {\n return (event) => {\n // check response status\n // https://developer.mozilla.org/en-US/docs/Web/HTTP/Response_codes\n // status 200: \"OK\"; status 0: \"debug\"\n const status = event.target.status;\n if (status !== 200 && status !== 0) {\n this.onerror({\n source: dataElement,\n error: 'GET ' + event.target.responseURL +\n ' ' + event.target.status +\n ' (' + event.target.statusText + ')',\n target: event.target\n });\n this.#addLoadend();\n } else {\n loader.load(event.target.response, dataElement, i);\n }\n };\n }\n\n /**\n * Load a list of urls.\n *\n * @param {string[]} data The list of urls to load.\n * @param {object} [options] The options object, can contain:\n * - requestHeaders: an array of {name, value} to use as request headers,\n * - withCredentials: boolean xhr.withCredentials flag to pass\n * to the request,\n * - batchSize: the size of the request url batch.\n */\n #loadUrls(data, options) {\n // check input\n if (typeof data === 'undefined' || data.length === 0) {\n return;\n }\n this.#storeInputData(data);\n\n // create prgress handler\n const mproghandler = new MultiProgressHandler(this.onprogress);\n mproghandler.setNToLoad(data.length);\n\n // create loaders\n const loaders = [];\n for (let m = 0; m < loaderList.length; ++m) {\n loaders.push(new loaderList[m]());\n }\n\n // find an appropriate loader\n let dataElement = data[0];\n let loader = null;\n let foundLoader = false;\n for (let l = 0; l < loaders.length; ++l) {\n loader = loaders[l];\n if (loader.canLoadUrl(dataElement, options)) {\n foundLoader = true;\n // load options\n loader.setOptions({\n numberOfFiles: data.length,\n defaultCharacterSet: this.getDefaultCharacterSet()\n });\n // set loader callbacks\n // loader.onloadstart: nothing to do\n loader.onprogress = mproghandler.getUndefinedMonoProgressHandler(1);\n loader.onloaditem = this.onloaditem;\n loader.onload = this.#addLoad;\n loader.onloadend = this.#addLoadend;\n loader.onerror = this.onerror;\n loader.onabort = this.onabort;\n\n // store loader\n this.#storeLoader(loader);\n // exit\n break;\n }\n }\n if (!foundLoader) {\n throw new Error('No loader found for url: ' + dataElement);\n }\n\n // store last run request index\n let lastRunRequestIndex = 0;\n const requestOnLoadEnd = () => {\n // launch next in queue\n if (lastRunRequestIndex < this.#requests.length - 1 && !this.#aborting) {\n ++lastRunRequestIndex;\n this.#requests[lastRunRequestIndex].send(null);\n }\n };\n\n // loop on I/O elements\n for (let i = 0; i < data.length; ++i) {\n dataElement = data[i];\n\n // check loader\n if (!loader.canLoadUrl(dataElement, options)) {\n throw new Error('Input url of different type: ' + dataElement);\n }\n /**\n * The http request.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest}.\n *\n * @external XMLHttpRequest\n */\n const request = new XMLHttpRequest();\n request.open('GET', dataElement, true);\n\n // request options\n if (typeof options !== 'undefined') {\n // optional request headers\n if (typeof options.requestHeaders !== 'undefined') {\n const requestHeaders = options.requestHeaders;\n for (let j = 0; j < requestHeaders.length; ++j) {\n if (typeof requestHeaders[j].name !== 'undefined' &&\n typeof requestHeaders[j].value !== 'undefined') {\n request.setRequestHeader(\n requestHeaders[j].name, requestHeaders[j].value);\n }\n }\n }\n // optional withCredentials\n // https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/withCredentials\n if (typeof options.withCredentials !== 'undefined') {\n request.withCredentials = options.withCredentials;\n }\n }\n\n // set request callbacks\n // request.onloadstart: nothing to do\n request.onprogress = this.#augmentCallbackEvent(\n mproghandler.getMonoProgressHandler(i, 0), dataElement);\n request.onload = this.#getLoadHandler(loader, dataElement, i);\n request.onloadend = requestOnLoadEnd;\n const errorCallback =\n this.#augmentCallbackEvent(this.onerror, dataElement);\n request.onerror = (event) => {\n this.#addLoadend();\n errorCallback(event);\n };\n const abortCallback =\n this.#augmentCallbackEvent(this.onabort, dataElement);\n request.onabort = (event) => {\n this.#addLoadend();\n abortCallback(event);\n };\n // response type (default is 'text')\n if (loader.loadUrlAs() === urlContentTypes.ArrayBuffer) {\n request.responseType = 'arraybuffer';\n }\n\n // store request\n this.#storeRequest(request);\n }\n\n // launch requests in batch\n let batchSize = this.#requests.length;\n if (typeof options !== 'undefined') {\n // optional request batch size\n if (typeof options.batchSize !== 'undefined' && batchSize !== 0) {\n batchSize = Math.min(options.batchSize, this.#requests.length);\n }\n }\n for (let r = 0; r < batchSize; ++r) {\n if (!this.#aborting) {\n lastRunRequestIndex = r;\n this.#requests[lastRunRequestIndex].send(null);\n }\n }\n }\n\n /**\n * Load a DICOMDIR.\n *\n * @param {string} dicomDirUrl The DICOMDIR url.\n * @param {object} [options] Load options.\n */\n #loadDicomDir(dicomDirUrl, options) {\n // read DICOMDIR\n const request = new XMLHttpRequest();\n request.open('GET', dicomDirUrl, true);\n request.responseType = 'arraybuffer';\n // request.onloadstart: nothing to do\n /**\n * @param {object} event The load event.\n */\n request.onload = (event) => {\n // check status\n const status = event.target.status;\n if (status !== 200 && status !== 0) {\n this.onerror({\n source: dicomDirUrl,\n error: 'GET ' + event.target.responseURL +\n ' ' + event.target.status +\n ' (' + event.target.statusText + ')',\n target: event.target\n });\n this.onloadend({});\n } else {\n // get the file list\n const list = getFileListFromDicomDir(event.target.response);\n // use the first list\n const urls = list[0][0];\n // append root url\n const rootUrl = getRootPath(dicomDirUrl);\n const fullUrls = [];\n for (let i = 0; i < urls.length; ++i) {\n fullUrls.push(rootUrl + '/' + urls[i]);\n }\n // load urls\n this.#loadUrls(fullUrls, options);\n }\n };\n request.onerror = (event) => {\n this.#augmentCallbackEvent(this.onerror, dicomDirUrl)(event);\n this.onloadend({});\n };\n request.onabort = (event) => {\n this.#augmentCallbackEvent(this.onabort, dicomDirUrl)(event);\n this.onloadend({});\n };\n // request.onloadend: nothing to do\n // send request\n request.send(null);\n }\n\n /**\n * Abort a load.\n */\n abort() {\n this.#aborting = true;\n // abort non finished requests\n for (let i = 0; i < this.#requests.length; ++i) {\n // 0: UNSENT, 1: OPENED, 2: HEADERS_RECEIVED (send()), 3: LOADING, 4: DONE\n if (this.#requests[i].readyState !== 4) {\n this.#requests[i].abort();\n }\n }\n // abort loader\n if (this.#runningLoader && this.#runningLoader.isLoading()) {\n this.#runningLoader.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class UrlsLoader\n","/**\n * Thread Pool.\n *\n * Highly inspired from {@link http://www.smartjava.org/content/html5-easily-parallelize-jobs-using-web-workers-and-threadpool}.\n */\nexport class ThreadPool {\n\n /**\n * @param {number} poolSize The size of the pool.\n */\n constructor(poolSize) {\n this.poolSize = poolSize;\n // task queue\n this.taskQueue = [];\n // lsit of available threads\n this.freeThreads = [];\n // create 'poolSize' number of worker threads\n for (let i = 0; i < poolSize; ++i) {\n this.freeThreads.push(new WorkerThread(this));\n }\n // list of running threads (unsed in abort)\n this.runningThreads = [];\n }\n\n /**\n * Add a worker task to the queue.\n * Will be run when a thread is made available.\n *\n * @param {object} workerTask The task to add to the queue.\n */\n addWorkerTask(workerTask) {\n // send work start if first task\n if (this.freeThreads.length === this.poolSize) {\n this.onworkstart({type: 'work-start'});\n }\n // launch task or queue\n if (this.freeThreads.length > 0) {\n // get the first free worker thread\n const workerThread = this.freeThreads.shift();\n // add the thread to the runnning list\n this.runningThreads.push(workerThread);\n // run the input task\n workerThread.run(workerTask);\n } else {\n // no free thread, add task to queue\n this.taskQueue.push(workerTask);\n }\n }\n\n /**\n * Abort all threads.\n */\n abort() {\n // stop all threads\n this.#stop();\n // callback\n this.onabort({type: 'work-abort'});\n this.onworkend({type: 'work-end'});\n }\n\n /**\n * Handle a task end.\n *\n * @param {object} workerThread The thread to free.\n */\n onTaskEnd(workerThread) {\n // launch next task in queue or finish\n if (this.taskQueue.length > 0) {\n // get waiting task\n const workerTask = this.taskQueue.shift();\n // use input thread to run the waiting task\n workerThread.run(workerTask);\n } else {\n // stop the worker\n workerThread.stop();\n // no task to run, add to free list\n this.freeThreads.push(workerThread);\n // remove from running list\n for (let i = 0; i < this.runningThreads.length; ++i) {\n if (this.runningThreads[i].getId() === workerThread.getId()) {\n this.runningThreads.splice(i, 1);\n }\n }\n // the work is done when the queue is back to its initial size\n if (this.freeThreads.length === this.poolSize) {\n this.onwork({type: 'work'});\n this.onworkend({type: 'work-end'});\n }\n }\n }\n\n /**\n * Handle an error message from a worker.\n *\n * @param {object} event The error event.\n */\n handleWorkerError = (event) => {\n // stop all threads\n this.#stop();\n // callback\n this.onerror({error: event});\n this.onworkend({type: 'work-end'});\n };\n\n // private ----------------------------------------------------------------\n\n /**\n * Stop the pool: stop all running threads.\n *\n */\n #stop() {\n // clear tasks\n this.taskQueue = [];\n // cancel running workers\n for (let i = 0; i < this.runningThreads.length; ++i) {\n this.runningThreads[i].stop();\n }\n this.runningThreads = [];\n }\n\n\n /**\n * Handle a work start event.\n * Default does nothing.\n *\n * @param {object} _event The work start event.\n */\n onworkstart(_event) {}\n\n /**\n * Handle a work item event.\n * Default does nothing.\n *\n * @param {object} _event The work item event fired\n * when a work item ended successfully.\n */\n onworkitem(_event) {}\n\n /**\n * Handle a work event.\n * Default does nothing.\n *\n * @param {object} _event The work event fired\n * when a work ended successfully.\n */\n onwork(_event) {}\n\n /**\n * Handle a work end event.\n * Default does nothing.\n *\n * @param {object} _event The work end event fired\n * when a work has completed, successfully or not.\n */\n onworkend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // ThreadPool\n\n/**\n * Worker background task.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/Worker}.\n *\n * @external Worker\n */\n\n/**\n * Worker thread.\n */\nclass WorkerThread {\n\n /**\n * @param {object} parentPool The parent pool.\n */\n constructor(parentPool) {\n this.parentPool = parentPool;\n // thread ID\n this.id = Math.random().toString(36).substring(2, 15);\n // running task\n this.runningTask = null;\n // worker used to run task\n this.worker;\n }\n\n /**\n * Get the thread ID.\n *\n * @returns {string} The thread ID (alphanumeric).\n */\n getId() {\n return this.id;\n }\n\n /**\n * Run a worker task.\n *\n * @param {object} workerTask The task to run.\n */\n run(workerTask) {\n // store task\n this.runningTask = workerTask;\n // create a new web worker if not done yet\n if (typeof this.worker === 'undefined') {\n this.worker = new Worker(this.runningTask.script);\n // set callbacks\n this.worker.onmessage = this.onmessage;\n this.worker.onerror = this.onerror;\n }\n // launch the worker\n this.worker.postMessage(this.runningTask.startMessage);\n }\n\n /**\n * Finish a task and tell the parent.\n */\n stop() {\n // stop the worker\n if (typeof this.worker !== 'undefined') {\n this.worker.terminate();\n // force create at next run\n this.worker = undefined;\n }\n }\n\n /**\n * Message event handler.\n * For now assume we only get a single callback from a worker\n * which also indicates the end of this worker.\n *\n * @param {object} event The message event.\n */\n onmessage = (event) => {\n // augment event\n event.itemNumber = this.runningTask.info.itemNumber;\n event.numberOfItems = this.runningTask.info.numberOfItems;\n event.index = this.runningTask.info.index;\n // send event\n this.parentPool.onworkitem(event);\n // tell the parent pool the task is done\n this.parentPool.onTaskEnd(this);\n };\n\n /**\n * Error event handler.\n *\n * @param {object} event The error event.\n */\n onerror = (event) => {\n // augment event\n event.itemNumber = this.runningTask.info.itemNumber;\n event.numberOfItems = this.runningTask.info.numberOfItems;\n event.index = this.runningTask.info.index;\n // pass to parent\n this.parentPool.handleWorkerError(event);\n // stop the worker and free the thread\n this.stop();\n };\n} // class WorkerThread\n\n/**\n * Worker task.\n */\nexport class WorkerTask {\n /**\n * @param {string} script The worker script.\n * @param {object} message The data to pass to the worker.\n * @param {object} info Information object about the input data.\n */\n constructor(script, message, info) {\n // worker script\n this.script = script;\n // worker start message\n this.startMessage = message;\n // information about the work data\n this.info = info;\n }\n}\n","import {ThreadPool, WorkerTask} from '../utils/thread';\n\n/**\n * The JPEG baseline decoder.\n *\n * Ref: {@link https://github.com/mozilla/pdf.js/blob/master/src/core/jpg.js}.\n *\n * @external JpegImage\n */\n/* global JpegImage */\n// @ts-ignore\nconst hasJpegBaselineDecoder = (typeof JpegImage !== 'undefined');\n\n/**\n * The JPEG decoder namespace.\n *\n * Ref: {@link https://github.com/rii-mango/JPEGLosslessDecoderJS}.\n *\n * @external jpeg\n */\n/* global jpeg */\nconst hasJpegLosslessDecoder =\n // @ts-ignore\n (typeof jpeg !== 'undefined') && (typeof jpeg.lossless !== 'undefined');\n\n/**\n * The JPEG 2000 decoder.\n *\n * Ref: {@link https://github.com/jpambrun/jpx-medical/blob/master/jpx.js}.\n *\n * @external JpxImage\n */\n/* global JpxImage */\n// @ts-ignore\nconst hasJpeg2000Decoder = (typeof JpxImage !== 'undefined');\n\n/* global dwvdecoder */\n\n/**\n * Decoder scripts to be passed to web workers for image decoding.\n */\nexport const decoderScripts = {\n jpeg2000: '',\n 'jpeg-lossless': '',\n 'jpeg-baseline': '',\n rle: ''\n};\n\n/**\n * Asynchronous pixel buffer decoder.\n */\nclass AsynchPixelBufferDecoder {\n\n /**\n * The associated worker script.\n *\n * @type {string}\n */\n #script;\n\n /**\n * Associated thread pool.\n *\n * @type {ThreadPool}\n */\n #pool = new ThreadPool(10);\n\n /**\n * Flag to know if callbacks are set.\n *\n * @type {boolean}\n */\n #areCallbacksSet = false;\n\n /**\n * @param {string} script The path to the decoder script to be used\n * by the web worker.\n * @param {number} _numberOfData The anticipated number of data to decode.\n */\n constructor(script, _numberOfData) {\n this.#script = script;\n }\n\n /**\n * Decode a pixel buffer.\n *\n * @param {Array} pixelBuffer The pixel buffer.\n * @param {object} pixelMeta The input meta data.\n * @param {object} info Information object about the input data.\n */\n decode(pixelBuffer, pixelMeta, info) {\n if (!this.#areCallbacksSet) {\n this.#areCallbacksSet = true;\n // set event handlers\n this.#pool.onworkstart = this.ondecodestart;\n this.#pool.onworkitem = this.ondecodeditem;\n this.#pool.onwork = this.ondecoded;\n this.#pool.onworkend = this.ondecodeend;\n this.#pool.onerror = this.onerror;\n this.#pool.onabort = this.onabort;\n }\n // create worker task\n const workerTask = new WorkerTask(\n this.#script,\n {\n buffer: pixelBuffer,\n meta: pixelMeta\n },\n info\n );\n // add it the queue and run it\n this.#pool.addWorkerTask(workerTask);\n }\n\n /**\n * Abort decoding.\n */\n abort() {\n // abort the thread pool, will trigger pool.onabort\n this.#pool.abort();\n }\n\n /**\n * Handle a decode start event.\n * Default does nothing.\n *\n * @param {object} _event The decode start event.\n */\n ondecodestart(_event) {}\n\n /**\n * Handle a decode item event.\n * Default does nothing.\n *\n * @param {object} _event The decode item event fired\n * when a decode item ended successfully.\n */\n ondecodeditem(_event) {}\n\n /**\n * Handle a decode event.\n * Default does nothing.\n *\n * @param {object} _event The decode event fired\n * when a file has been decoded successfully.\n */\n ondecoded(_event) {}\n\n /**\n * Handle a decode end event.\n * Default does nothing.\n *\n * @param {object} _event The decode end event fired\n * when a file decoding has completed, successfully or not.\n */\n ondecodeend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class AsynchPixelBufferDecoder\n\n/**\n * Synchronous pixel buffer decoder.\n */\nclass SynchPixelBufferDecoder {\n\n /**\n * Name of the compression algorithm.\n *\n * @type {string}\n */\n #algoName;\n\n /**\n * Number of data.\n *\n * @type {number}\n */\n #numberOfData;\n\n /**\n * @param {string} algoName The decompression algorithm name.\n * @param {number} numberOfData The anticipated number of data to decode.\n */\n constructor(algoName, numberOfData) {\n this.#algoName = algoName;\n this.#numberOfData = numberOfData;\n }\n\n // decode count\n #decodeCount = 0;\n\n /**\n * Decode a pixel buffer.\n *\n * @param {Array} pixelBuffer The pixel buffer.\n * @param {object} pixelMeta The input meta data.\n * @param {object} info Information object about the input data.\n * @external jpeg\n * @external JpegImage\n * @external JpxImage\n */\n decode(pixelBuffer, pixelMeta, info) {\n ++this.#decodeCount;\n\n let decoder = null;\n let decodedBuffer = null;\n if (this.#algoName === 'jpeg-lossless') {\n if (!hasJpegLosslessDecoder) {\n throw new Error('No JPEG Lossless decoder provided');\n }\n // bytes per element\n const bpe = pixelMeta.bitsAllocated / 8;\n const buf = new Uint8Array(pixelBuffer);\n // @ts-ignore\n decoder = new jpeg.lossless.Decoder();\n const decoded = decoder.decode(buf.buffer, 0, buf.buffer.byteLength, bpe);\n if (pixelMeta.bitsAllocated === 8) {\n if (pixelMeta.isSigned) {\n decodedBuffer = new Int8Array(decoded.buffer);\n } else {\n decodedBuffer = new Uint8Array(decoded.buffer);\n }\n } else if (pixelMeta.bitsAllocated === 16) {\n if (pixelMeta.isSigned) {\n decodedBuffer = new Int16Array(decoded.buffer);\n } else {\n decodedBuffer = new Uint16Array(decoded.buffer);\n }\n }\n } else if (this.#algoName === 'jpeg-baseline') {\n if (!hasJpegBaselineDecoder) {\n throw new Error('No JPEG Baseline decoder provided');\n }\n // @ts-ignore\n decoder = new JpegImage();\n decoder.parse(pixelBuffer);\n decodedBuffer = decoder.getData(decoder.width, decoder.height);\n } else if (this.#algoName === 'jpeg2000') {\n if (!hasJpeg2000Decoder) {\n throw new Error('No JPEG 2000 decoder provided');\n }\n // decompress pixel buffer into Int16 image\n // @ts-ignore\n decoder = new JpxImage();\n decoder.parse(pixelBuffer);\n // set the pixel buffer\n decodedBuffer = decoder.tiles[0].items;\n } else if (this.#algoName === 'rle') {\n // decode DICOM buffer\n // @ts-ignore\n decoder = new dwvdecoder.RleDecoder();\n // set the pixel buffer\n decodedBuffer = decoder.decode(\n pixelBuffer,\n pixelMeta.bitsAllocated,\n pixelMeta.isSigned,\n pixelMeta.sliceSize,\n pixelMeta.samplesPerPixel,\n pixelMeta.planarConfiguration);\n }\n // send decode events\n this.ondecodeditem({\n data: [decodedBuffer],\n index: info.index,\n numberOfItems: info.numberOfItems,\n itemNumber: info.itemNumber\n });\n // decode end?\n if (this.#decodeCount === this.#numberOfData) {\n this.ondecoded({});\n this.ondecodeend({});\n }\n }\n\n /**\n * Abort decoding.\n */\n abort() {\n // nothing to do in the synchronous case.\n // callback\n this.onabort({});\n this.ondecodeend({});\n }\n\n /**\n * Handle a decode start event.\n * Default does nothing.\n *\n * @param {object} _event The decode start event.\n */\n ondecodestart(_event) {}\n\n /**\n * Handle a decode item event.\n * Default does nothing.\n *\n * @param {object} _event The decode item event fired\n * when a decode item ended successfully.\n */\n ondecodeditem(_event) {}\n\n /**\n * Handle a decode event.\n * Default does nothing.\n *\n * @param {object} _event The decode event fired\n * when a file has been decoded successfully.\n */\n ondecoded(_event) {}\n\n /**\n * Handle a decode end event.\n * Default does nothing.\n *\n * @param {object} _event The decode end event fired\n * when a file decoding has completed, successfully or not.\n */\n ondecodeend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class SynchPixelBufferDecoder\n\n/**\n * Decode a pixel buffer.\n *\n * If the 'decoderScripts' variable does not contain the desired,\n * algorythm the decoder will switch to the synchronous mode.\n */\nexport class PixelBufferDecoder {\n\n /**\n * Flag to know if callbacks are set.\n *\n * @type {boolean}\n */\n #areCallbacksSet = false;\n\n /**\n * Pixel decoder.\n * Defined only once.\n *\n * @type {object}\n */\n #pixelDecoder = null;\n\n /**\n * @param {string} algoName The decompression algorithm name.\n * @param {number} numberOfData The anticipated number of data to decode.\n */\n constructor(algoName, numberOfData) {\n // initialise the asynch decoder (if possible)\n if (typeof decoderScripts !== 'undefined' &&\n typeof decoderScripts[algoName] !== 'undefined') {\n this.#pixelDecoder = new AsynchPixelBufferDecoder(\n decoderScripts[algoName], numberOfData);\n } else {\n this.#pixelDecoder = new SynchPixelBufferDecoder(\n algoName, numberOfData);\n }\n }\n\n /**\n * Get data from an input buffer using a DICOM parser.\n *\n * @param {Array} pixelBuffer The input data buffer.\n * @param {object} pixelMeta The input meta data.\n * @param {object} info Information object about the input data.\n */\n decode(pixelBuffer, pixelMeta, info) {\n if (!this.#areCallbacksSet) {\n this.#areCallbacksSet = true;\n // set callbacks\n this.#pixelDecoder.ondecodestart = this.ondecodestart;\n this.#pixelDecoder.ondecodeditem = this.ondecodeditem;\n this.#pixelDecoder.ondecoded = this.ondecoded;\n this.#pixelDecoder.ondecodeend = this.ondecodeend;\n this.#pixelDecoder.onerror = this.onerror;\n this.#pixelDecoder.onabort = this.onabort;\n }\n // decode and call the callback\n this.#pixelDecoder.decode(pixelBuffer, pixelMeta, info);\n }\n\n /**\n * Abort decoding.\n */\n abort() {\n // decoder classes should define an abort\n this.#pixelDecoder.abort();\n }\n\n /**\n * Handle a decode start event.\n * Default does nothing.\n *\n * @param {object} _event The decode start event.\n */\n ondecodestart(_event) {}\n\n /**\n * Handle a decode item event.\n * Default does nothing.\n *\n * @param {object} _event The decode item event fired\n * when a decode item ended successfully.\n */\n ondecodeditem(_event) {}\n\n /**\n * Handle a decode event.\n * Default does nothing.\n *\n * @param {object} _event The decode event fired\n * when a file has been decoded successfully.\n */\n ondecoded(_event) {}\n\n /**\n * Handle a decode end event.\n * Default does nothing.\n *\n * @param {object} _event The decode end event fired\n * when a file decoding has completed, successfully or not.\n */\n ondecodeend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class PixelBufferDecoder\n","import {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n NumericValue: '0040A30A',\n FloatingPointValue: '0040A161',\n RationalNumeratorValue: '0040A162',\n RationalDenominatorValue: '0040A163',\n MeasurementUnitsCodeSequence: '004008EA'\n};\n\n/**\n * DICOM measured value: property of a numeric measurement.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.html#table_C.18.1-1}.\n */\nexport class MeasuredValue {\n /**\n * @type {number}\n */\n numericValue;\n\n /**\n * @type {number}\n */\n floatingPointValue;\n\n /**\n * @type {number}\n */\n rationalNumeratorValue;\n\n /**\n * @type {number}\n */\n rationalDenominatorValue;\n\n /**\n * @type {object}\n */\n measurementUnitsCode;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.numericValue + ' ' +\n this.measurementUnitsCode.toString();\n };\n\n};\n\n/**\n * Get a measured value object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {MeasuredValue} A measured value object.\n */\nexport function getMeasuredValue(dataElements) {\n const value = new MeasuredValue();\n\n if (typeof dataElements[TagKeys.NumericValue] !== 'undefined') {\n value.numericValue = dataElements[TagKeys.NumericValue].value[0];\n }\n if (typeof dataElements[TagKeys.FloatingPointValue] !== 'undefined') {\n value.floatingPointValue =\n dataElements[TagKeys.FloatingPointValue].value[0];\n }\n if (typeof dataElements[TagKeys.RationalNumeratorValue] !== 'undefined') {\n value.rationalNumeratorValue =\n dataElements[TagKeys.RationalNumeratorValue].value[0];\n }\n if (typeof dataElements[TagKeys.RationalDenominatorValue] !== 'undefined') {\n value.rationalDenominatorValue =\n dataElements[TagKeys.RationalDenominatorValue].value[0];\n }\n if (typeof dataElements[TagKeys.MeasurementUnitsCodeSequence] !==\n 'undefined') {\n value.measurementUnitsCode = getCode(\n dataElements[TagKeys.MeasurementUnitsCodeSequence].value[0]);\n }\n\n return value;\n};\n\n/**\n * Get a simple dicom element item from a measured value object.\n *\n * @param {MeasuredValue} value The measured value object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomMeasuredValueItem(value) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof value.measurementUnitsCode !== 'undefined') {\n item.MeasurementUnitsCodeSequence = {\n value: [getDicomCodeItem(value.measurementUnitsCode)]\n };\n }\n if (typeof value.floatingPointValue !== 'undefined') {\n item.FloatingPointValue = value.floatingPointValue;\n }\n if (typeof value.rationalNumeratorValue !== 'undefined') {\n item.RationalNumeratorValue = value.rationalNumeratorValue;\n }\n if (typeof value.rationalDenominatorValue !== 'undefined') {\n item.RationalDenominatorValue = value.rationalDenominatorValue;\n }\n if (typeof value.numericValue !== 'undefined') {\n item.NumericValue = value.numericValue;\n }\n\n // return\n return item;\n}\n","import {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\nimport {\n getMeasuredValue,\n getDicomMeasuredValueItem\n} from './dicomMeasuredValue';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n MeasuredValueSequence: '0040A300',\n NumericValueQualifierCodeSequence: '0040A301'\n};\n\n/**\n * DICOM numeric measurement: item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.html#table_C.18.1-1}.\n */\nexport class NumericMeasurement {\n /**\n * @type {object}\n */\n measuredValue;\n\n /**\n * @type {object}\n */\n numericValueQualifierCode;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n let res = this.measuredValue.toString();\n if (typeof this.numericValueQualifierCode !== 'undefined') {\n res += ' ' + this.numericValueQualifierCode.toString();\n }\n return res;\n }\n};\n\n/**\n * Get a measurement object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {NumericMeasurement} A measurement object.\n */\nexport function getNumericMeasurement(dataElements) {\n const measurement = new NumericMeasurement();\n\n if (typeof dataElements[TagKeys.MeasuredValueSequence] !== 'undefined') {\n measurement.measuredValue = getMeasuredValue(\n dataElements[TagKeys.MeasuredValueSequence].value[0]);\n }\n if (typeof dataElements[TagKeys.NumericValueQualifierCodeSequence] !==\n 'undefined') {\n measurement.numericValueQualifierCode = getCode(\n dataElements[TagKeys.NumericValueQualifierCodeSequence].value[0]);\n }\n\n return measurement;\n};\n\n/**\n * Get a simple dicom element item from a measurement object.\n *\n * @param {NumericMeasurement} measurement The measurement object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomNumericMeasurementItem(measurement) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof measurement.measuredValue !== 'undefined') {\n item.MeasuredValueSequence = {\n value: [getDicomMeasuredValueItem(measurement.measuredValue)]\n };\n }\n if (typeof measurement.numericValueQualifierCode !== 'undefined') {\n item.NumericValueQualifierCodeSequence = {\n value: [getDicomCodeItem(measurement.numericValueQualifierCode)]\n };\n }\n\n // return\n return item;\n}\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n ReferencedSOPClassUID: '00081150',\n ReferencedSOPInstanceUID: '00081155'\n};\n\n/**\n * DICOM sop instance reference.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_10.8.html#table_10-11}.\n */\nexport class SopInstanceReference {\n /**\n * @type {string}\n */\n referencedSOPClassUID;\n\n /**\n * @type {string}\n */\n referencedSOPInstanceUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.referencedSOPInstanceUID + ' (class: ' +\n this.referencedSOPClassUID + ')';\n };\n};\n\n/**\n * Get a SOP reference object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {SopInstanceReference} A SOP reference object.\n */\nexport function getSopInstanceReference(dataElements) {\n const ref = new SopInstanceReference();\n\n if (typeof dataElements[TagKeys.ReferencedSOPClassUID] !== 'undefined') {\n ref.referencedSOPClassUID =\n dataElements[TagKeys.ReferencedSOPClassUID].value[0];\n }\n if (typeof dataElements[TagKeys.ReferencedSOPInstanceUID] !== 'undefined') {\n ref.referencedSOPInstanceUID =\n dataElements[TagKeys.ReferencedSOPInstanceUID].value[0];\n }\n\n return ref;\n};\n\n/**\n * Get a simple dicom element item from a SOP reference object.\n *\n * @param {SopInstanceReference} ref The SOP reference object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSopInstanceReferenceItem(ref) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof ref.referencedSOPClassUID !== 'undefined') {\n item.ReferencedSOPClassUID = ref.referencedSOPClassUID;\n }\n if (typeof ref.referencedSOPInstanceUID !== 'undefined') {\n item.ReferencedSOPInstanceUID = ref.referencedSOPInstanceUID;\n }\n\n // return\n return item;\n}\n","import {\n getSopInstanceReference,\n getDicomSopInstanceReferenceItem\n} from './dicomSopInstanceReference';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n ReferencedFrameNumber: '00081160',\n ReferencedSOPSequence: '00081199',\n ReferencedSegmentNumber: '0062000B'\n};\n\n/**\n * DICOM image reference: item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.4.html#table_C.18.4-1}.\n */\nexport class ImageReference {\n /**\n * @type {object}\n */\n referencedSOPSequence;\n\n /**\n * @type {object}\n */\n referencedFrameNumber;\n\n /**\n * @type {string}\n */\n referencedSegmentNumber;\n\n /**\n * @type {string}\n */\n fiducialUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.referencedSOPSequence.toString();\n };\n};\n\n/**\n * Get a reference object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {ImageReference} A reference object.\n */\nexport function getImageReference(dataElements) {\n const ref = new ImageReference();\n\n if (typeof dataElements[TagKeys.ReferencedFrameNumber] !== 'undefined') {\n ref.referencedFrameNumber =\n dataElements[TagKeys.ReferencedFrameNumber].value[0];\n }\n if (typeof dataElements[TagKeys.ReferencedSOPSequence] !== 'undefined') {\n ref.referencedSOPSequence = getSopInstanceReference(\n dataElements[TagKeys.ReferencedSOPSequence].value[0]);\n }\n if (typeof dataElements[TagKeys.ReferencedSegmentNumber] !== 'undefined') {\n ref.referencedSegmentNumber =\n dataElements[TagKeys.ReferencedSegmentNumber].value[0];\n }\n\n return ref;\n};\n\n/**\n * Get a simple dicom element item from a reference object.\n *\n * @param {ImageReference} ref The reference object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomImageReferenceItem(ref) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof ref.referencedFrameNumber !== 'undefined') {\n item.ReferencedFrameNumber = ref.referencedFrameNumber;\n }\n if (typeof ref.referencedSOPSequence !== 'undefined') {\n item.ReferencedSOPSequence = {\n value: [getDicomSopInstanceReferenceItem(ref.referencedSOPSequence)]\n };\n }\n if (typeof ref.referencedSegmentNumber !== 'undefined') {\n item.ReferencedSegmentNumber =\n ref.referencedSegmentNumber;\n }\n\n // return\n return item;\n}\n","import {Point2D} from '../math/point';\nimport {Line} from '../math/line';\nimport {Circle} from '../math/circle';\nimport {Ellipse} from '../math/ellipse';\nimport {Rectangle} from '../math/rectangle';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n PixelOriginInterpretation: '00480301',\n GraphicData: '00700022',\n GraphicType: '00700023',\n FiducialUID: '0070031A'\n};\n\n/**\n * DICOM graphic types.\n */\nconst GraphicTypes = {\n point: 'POINT',\n multipoint: 'MULTIPOINT',\n polyline: 'POLYLINE',\n circle: 'CIRCLE',\n ellipse: 'ELLIPSE'\n};\n\n/**\n * DICOM spatial coordinate (SCOORD): item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.6.html#table_C.18.6-1}.\n */\nexport class SpatialCoordinate {\n /**\n * @type {string[]}\n */\n graphicData;\n\n /**\n * @type {string}\n */\n graphicType;\n\n /**\n * @type {string}\n */\n pixelOriginInterpretation;\n\n /**\n * @type {string}\n */\n fiducialUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.graphicType +\n ' {' + this.graphicData + '}';\n };\n};\n\n/**\n * Get a scoord object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {SpatialCoordinate} A scoord object.\n */\nexport function getSpatialCoordinate(dataElements) {\n const scoord = new SpatialCoordinate();\n\n if (typeof dataElements[TagKeys.GraphicData] !== 'undefined') {\n scoord.graphicData = dataElements[TagKeys.GraphicData].value;\n }\n if (typeof dataElements[TagKeys.GraphicType] !== 'undefined') {\n scoord.graphicType = dataElements[TagKeys.GraphicType].value[0];\n }\n if (typeof dataElements[TagKeys.PixelOriginInterpretation] !== 'undefined') {\n scoord.pixelOriginInterpretation =\n dataElements[TagKeys.PixelOriginInterpretation].value[0];\n }\n if (typeof dataElements[TagKeys.FiducialUID] !== 'undefined') {\n scoord.fiducialUID = dataElements[TagKeys.FiducialUID].value[0];\n }\n return scoord;\n};\n\n/**\n * Get a simple dicom element item from a scoord object.\n *\n * @param {SpatialCoordinate} scoord The scoord object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSpatialCoordinateItem(scoord) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof scoord.pixelOriginInterpretation !== 'undefined') {\n item.PixelOriginInterpretation = scoord.pixelOriginInterpretation;\n }\n if (typeof scoord.graphicData !== 'undefined') {\n item.GraphicData = scoord.graphicData;\n }\n if (typeof scoord.graphicType !== 'undefined') {\n item.GraphicType = scoord.graphicType;\n }\n if (typeof scoord.fiducialUID !== 'undefined') {\n item.FiducialUID = scoord.fiducialUID;\n }\n\n // return\n return item;\n}\n\n/**\n * Get a DICOM spatial coordinate (SCOORD) from a mathematical shape.\n *\n * @param {Line|Circle|Ellipse|Rectangle} shape The math shape.\n * @returns {SpatialCoordinate} The DICOM scoord.\n */\nexport function getScoordFromShape(shape) {\n const scoord = new SpatialCoordinate();\n\n if (shape instanceof Line) {\n scoord.graphicData = [\n shape.getBegin().getX().toString(),\n shape.getBegin().getY().toString(),\n shape.getEnd().getX().toString(),\n shape.getEnd().getY().toString(),\n ];\n scoord.graphicType = GraphicTypes.polyline;\n } else if (shape instanceof Circle) {\n const center = shape.getCenter();\n const pointPerimeter = new Point2D(\n center.getX() + shape.getRadius(), center.getY()\n );\n scoord.graphicData = [\n center.getX().toString(),\n center.getY().toString(),\n pointPerimeter.getX().toString(),\n pointPerimeter.getY().toString(),\n ];\n scoord.graphicType = GraphicTypes.circle;\n } else if (shape instanceof Ellipse) {\n const center = shape.getCenter();\n const radiusX = shape.getA();\n const radiusY = shape.getB();\n scoord.graphicData = [\n (center.getX() - radiusX).toString(),\n center.getY().toString(),\n (center.getX() + radiusX).toString(),\n center.getY().toString(),\n center.getX().toString(),\n (center.getY() - radiusY).toString(),\n center.getX().toString(),\n (center.getY() + radiusY).toString()\n ];\n scoord.graphicType = GraphicTypes.ellipse;\n } else if (shape instanceof Rectangle) {\n const begin = shape.getBegin();\n const end = shape.getEnd();\n scoord.graphicData = [\n begin.getX().toString(),\n begin.getY().toString(),\n begin.getX().toString(),\n end.getY().toString(),\n end.getX().toString(),\n end.getY().toString(),\n end.getX().toString(),\n begin.getY().toString(),\n ];\n scoord.graphicType = GraphicTypes.polyline;\n }\n\n return scoord;\n};\n\n/**\n * Get a mathematical shape from a DICOM spatial coordinate (SCOORD).\n *\n * @param {SpatialCoordinate} scoord The DICOM scoord.\n * @returns {Line|Circle|Ellipse|Rectangle} The math shape.\n */\nexport function getShapeFromScoord(scoord) {\n // extract points\n const numberOfPoints = scoord.graphicData.length;\n if (numberOfPoints % 2 !== 0) {\n throw new Error('Expecting even number of coordinates in scroord data');\n }\n const points = [];\n for (let i = 0; i < scoord.graphicData.length; i += 2) {\n points.push(new Point2D(\n parseFloat(scoord.graphicData[i]),\n parseFloat(scoord.graphicData[i + 1])\n ));\n }\n\n // create math shape\n let shape;\n if (scoord.graphicType === GraphicTypes.circle) {\n if (points.length !== 2) {\n throw new Error('Expecting 2 points for circles');\n }\n const center = points[0];\n const pointPerimeter = points[1];\n const radius = pointPerimeter.getDistance(center);\n shape = new Circle(center, radius);\n } else if (scoord.graphicType === GraphicTypes.ellipse) {\n if (points.length !== 4) {\n throw new Error('Expecting 4 points for ellipses');\n }\n // TODO: make more generic\n const radiusX = points[0].getDistance(points[1]) / 2;\n const radiusY = points[2].getDistance(points[3]) / 2;\n const center = new Point2D(\n points[0].getX() + radiusX,\n points[0].getY()\n );\n shape = new Ellipse(center, radiusX, radiusY);\n } else if (scoord.graphicType === GraphicTypes.polyline) {\n if (points.length === 2) {\n shape = new Line(points[0], points[1]);\n } else if (points.length === 4) {\n shape = new Rectangle(points[0], points[2]);\n }\n }\n\n return shape;\n};","// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n GraphicData: '00700022',\n GraphicType: '00700023',\n ReferencedFrameofReferenceUID: '30060024',\n FiducialUID: '0070031A'\n};\n\n/**\n * DICOM spatial coordinate 3D (SCOORD3D): item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.18.9.html#table_C.18.9-1}.\n */\nexport class SpatialCoordinate3D {\n /**\n * @type {string[]}\n */\n graphicData;\n\n /**\n * @type {string}\n */\n graphicType;\n\n /**\n * @type {string}\n */\n referencedFrameofReferenceUID;\n\n /**\n * @type {string}\n */\n fiducialUID;\n\n /**\n * Get a string representation of this object.\n *\n * @returns {string} The object as string.\n */\n toString() {\n return this.graphicType +\n '{' + this.graphicData + '}';\n };\n};\n\n/**\n * Get a scoord3d object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {SpatialCoordinate3D} A scoord3d object.\n */\nexport function getSpatialCoordinate3D(dataElements) {\n const scoord = new SpatialCoordinate3D();\n\n if (typeof dataElements[TagKeys.GraphicData] !== 'undefined') {\n scoord.graphicData = dataElements[TagKeys.GraphicData].value;\n }\n if (typeof dataElements[TagKeys.GraphicType] !== 'undefined') {\n scoord.graphicType = dataElements[TagKeys.GraphicType].value[0];\n }\n if (typeof dataElements[TagKeys.ReferencedFrameofReferenceUID] !==\n 'undefined') {\n scoord.referencedFrameofReferenceUID =\n dataElements[TagKeys.ReferencedFrameofReferenceUID].value[0];\n }\n if (typeof dataElements[TagKeys.FiducialUID] !== 'undefined') {\n scoord.fiducialUID = dataElements[TagKeys.FiducialUID].value[0];\n }\n return scoord;\n};\n\n/**\n * Get a simple dicom element item from a scoord3d object.\n *\n * @param {SpatialCoordinate3D} scoord The scoord3d object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSpatialCoordinate3DItem(scoord) {\n // dicom item (tags are in group/element order)\n const item = {};\n\n if (typeof scoord.graphicData !== 'undefined') {\n item.GraphicData = scoord.graphicData;\n }\n if (typeof scoord.graphicType !== 'undefined') {\n item.GraphicType = scoord.graphicType;\n }\n if (typeof scoord.referencedFrameofReferenceUID !== 'undefined') {\n item.ReferencedFrameofReferenceUID =\n scoord.referencedFrameofReferenceUID;\n }\n if (typeof scoord.fiducialUID !== 'undefined') {\n item.FiducialUID = scoord.fiducialUID;\n }\n\n // return\n return item;\n}","import {\n getNumericMeasurement,\n getDicomNumericMeasurementItem\n} from './dicomNumericMeasurement';\nimport {\n getCode,\n getDicomCodeItem\n} from './dicomCode';\nimport {\n getImageReference,\n getDicomImageReferenceItem\n} from './dicomImageReference';\nimport {\n getSopInstanceReference,\n getDicomSopInstanceReferenceItem\n} from './dicomSopInstanceReference';\nimport {\n getSpatialCoordinate,\n getDicomSpatialCoordinateItem\n} from './dicomSpatialCoordinate';\nimport {\n getSpatialCoordinate3D,\n getDicomSpatialCoordinate3DItem\n} from './dicomSpatialCoordinate3D';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from './dataElement';\nimport {DicomCode} from './dicomCode';\n/* eslint-enable no-unused-vars */\n\n/**\n * Related DICOM tag keys.\n */\nconst TagKeys = {\n ReferencedSOPSequence: '00081199',\n RelationshipType: '0040A010',\n ValueType: '0040A040',\n ConceptNameCodeSequence: '0040A043',\n ConceptCodeSequence: '0040A168',\n ContentSequence: '0040A730',\n DateTime: '0040A120',\n Date: '0040A121',\n Time: '0040A122',\n UID: '0040A124',\n PersonName: '0040A123',\n TextValue: '0040A160',\n ContinuityOfContent: '0040A050'\n};\n\n/**\n * DICOM relationship types.\n */\nexport const RelationshipTypes = {\n contains: 'CONTAINS',\n hasProperties: 'HAS PROPERTIES',\n hasObsContext: 'HAS OBS CONTEXT',\n hasAcqContext: 'HAS ACQ CONTEXT',\n inferredFrom: 'INFERRED FROM',\n selectedFrom: 'SELECTED FROM',\n hasConceptMod: 'HAS CONCEPT MOD'\n};\n\n/**\n * DICOM value types.\n */\nexport const ValueTypes = {\n text: 'TEXT',\n num: 'NUM',\n code: 'CODE',\n date: 'DATE',\n time: 'TIME',\n datetime: 'DATETIME',\n uidref: 'UIDREF',\n pname: 'PNAME',\n composite: 'COMPOSITE',\n image: 'IMAGE',\n waveform: 'WAVEFORM',\n scoord: 'SCOORD',\n scoord3d: 'SCOORD3D',\n tcoord: 'TCOORD',\n container: 'CONTAINER',\n table: 'TABLE',\n};\n\n/**\n * DICOM value type to associated tag name.\n */\nexport const ValueTypeValueTagName = {\n TEXT: 'TextValue',\n DATE: 'Date',\n TIME: 'Time',\n DATETIME: 'DateTime',\n UIDREF: 'UID',\n PNAME: 'PersonName',\n CONTAINER: 'ContinuityOfContent',\n};\n\n/**\n * DICOM SR content: item of a SR content sequence.\n *\n * Ref: {@link https://dicom.nema.org/medical/dicom/2022a/output/chtml/part03/sect_C.17.3.html}.\n */\nexport class DicomSRContent {\n /**\n * Value type.\n *\n * @type {string}\n */\n valueType;\n /**\n * Concept name code.\n *\n * @type {DicomCode|undefined}\n */\n conceptNameCode;\n /**\n * Relationship Type.\n *\n * @type {string}\n */\n relationshipType;\n\n /**\n * Content sequence (0040,A730).\n *\n * @type {DicomSRContent[]|undefined}\n */\n contentSequence;\n\n /**\n * Value.\n *\n * @type {object}\n */\n value;\n\n /**\n * @param {string} valueType The content item value type.\n */\n constructor(valueType) {\n this.valueType = valueType;\n }\n\n /**\n * Get a string representation of this object.\n *\n * @param {string} [prefix] An optional prefix for recursive content.\n * @returns {string} The object as string.\n */\n toString(prefix) {\n if (typeof prefix === 'undefined') {\n prefix = '';\n }\n\n let res = '';\n\n if (typeof this.relationshipType !== 'undefined') {\n res += '(' + this.relationshipType + ') ';\n }\n\n res += this.valueType + ': ';\n\n if (typeof this.conceptNameCode !== 'undefined') {\n res += this.conceptNameCode.toString();\n }\n\n res += ' = ' + this.value.toString();\n\n if (typeof this.contentSequence !== 'undefined') {\n for (const item of this.contentSequence) {\n res += '\\n' + prefix + '- ' + item.toString(prefix + ' ');\n }\n }\n\n return res;\n }\n}\n\n/**\n * Check if two content item objects are equal.\n *\n * @param {DicomCode} item1 The first content item.\n * @param {DicomCode} item2 The second content item.\n * @returns {boolean} True if both content items are equal.\n */\nexport function isEqualContentItem(item1, item2) {\n return Object.keys(item1).length === Object.keys(item2).length &&\n Object.keys(item1).every(key =>\n Object.prototype.hasOwnProperty.call(item2, key) &&\n item1[key] === item2[key]\n );\n}\n\n/**\n * Get a content item object from a dicom element.\n *\n * @param {Object} dataElements The dicom element.\n * @returns {DicomSRContent} A content item object.\n */\nexport function getSRContent(dataElements) {\n // valueType -> ValueType (type1)\n let valueType = '';\n if (typeof dataElements[TagKeys.ValueType] !== 'undefined') {\n valueType = dataElements[TagKeys.ValueType].value[0];\n }\n\n const content = new DicomSRContent(valueType);\n\n // relationshipType -> RelationType (type1)\n if (typeof dataElements[TagKeys.RelationshipType] !== 'undefined') {\n content.relationshipType =\n dataElements[TagKeys.RelationshipType].value[0];\n }\n\n if (typeof dataElements[TagKeys.ConceptNameCodeSequence] !== 'undefined') {\n content.conceptNameCode =\n getCode(dataElements[TagKeys.ConceptNameCodeSequence].value[0]);\n }\n\n // set value acording to valueType\n // (date and time are stored as string)\n if (valueType === ValueTypes.code) {\n content.value = getCode(\n dataElements[TagKeys.ConceptCodeSequence].value[0]);\n } else if (valueType === ValueTypes.num) {\n content.value = getNumericMeasurement(dataElements);\n } else if (valueType === ValueTypes.image) {\n content.value = getImageReference(dataElements);\n } else if (valueType === ValueTypes.composite) {\n content.value = getSopInstanceReference(\n dataElements[TagKeys.ReferencedSOPSequence].value[0]\n );\n } else if (valueType === ValueTypes.scoord) {\n content.value = getSpatialCoordinate(dataElements);\n } else if (valueType === ValueTypes.scoord3d) {\n content.value = getSpatialCoordinate3D(dataElements);\n } else {\n const valueTagName = ValueTypeValueTagName[valueType];\n if (typeof valueTagName !== 'undefined') {\n content.value = dataElements[TagKeys[valueTagName]].value[0];\n } else {\n console.warn('Unsupported input ValueType: ' + valueType);\n }\n }\n\n const contentSqEl = dataElements[TagKeys.ContentSequence];\n if (typeof contentSqEl !== 'undefined') {\n content.contentSequence = [];\n for (const item of dataElements[TagKeys.ContentSequence].value) {\n content.contentSequence.push(getSRContent(item));\n }\n }\n\n if (typeof content.value === 'undefined') {\n console.log('valueType', valueType);\n }\n\n return content;\n}\n\n/**\n * Get a simple dicom element item from a content item object.\n *\n * @param {DicomSRContent} content The content item object.\n * @returns {Object} The item as a list of (key, value) pairs.\n */\nexport function getDicomSRContentItem(content) {\n // dicom item (tags are in ~group/element order)\n let contentItem = {};\n\n if (typeof content.relationshipType !== 'undefined') {\n contentItem.RelationshipType = content.relationshipType;\n }\n if (typeof content.valueType !== 'undefined') {\n contentItem.ValueType = content.valueType;\n }\n if (typeof content.conceptNameCode !== 'undefined') {\n contentItem.ConceptNameCodeSequence = {\n value: [getDicomCodeItem(content.conceptNameCode)]\n };\n }\n\n // set appropriate value tag (data and time are stored as string)\n if (content.valueType === 'CODE') {\n contentItem.ConceptCodeSequence = {\n value: [getDicomCodeItem(content.value)]\n };\n } else if (content.valueType === ValueTypes.num) {\n contentItem = {\n ...contentItem,\n ...getDicomNumericMeasurementItem(content.value)\n };\n } else if (content.valueType === ValueTypes.image) {\n contentItem = {\n ...contentItem,\n ...getDicomImageReferenceItem(content.value)\n };\n } else if (content.valueType === ValueTypes.composite) {\n contentItem = {\n ...contentItem,\n ...getDicomSopInstanceReferenceItem(content.value)\n };\n } else if (content.valueType === ValueTypes.scoord) {\n contentItem = {\n ...contentItem,\n ...getDicomSpatialCoordinateItem(content.value)\n };\n } else if (content.valueType === ValueTypes.scoord3d) {\n contentItem = {\n ...contentItem,\n ...getDicomSpatialCoordinate3DItem(content.value)\n };\n } else {\n const valueTagName = ValueTypeValueTagName[content.valueType];\n if (typeof valueTagName !== 'undefined') {\n contentItem[valueTagName] = content.value;\n } else {\n console.warn('Unsupported output ValueType: ' + content.valueType);\n }\n }\n\n if (typeof content.contentSequence !== 'undefined') {\n contentItem.ContentSequence = {\n value: []\n };\n for (const item of content.contentSequence) {\n contentItem.ContentSequence.value.push(getDicomSRContentItem(item));\n }\n }\n\n return contentItem;\n}\n","import {\n dateToDateObj,\n getDicomDate,\n dateToTimeObj,\n getDicomTime,\n} from '../dicom/dicomDate';\nimport {\n ValueTypes,\n RelationshipTypes,\n getSRContent,\n getDicomSRContentItem,\n DicomSRContent\n} from '../dicom/dicomSRContent';\nimport {\n getPathCode,\n getMeasurementGroupCode,\n getImageRegionCode,\n getSourceImageCode,\n getTrackingIdentifierCode,\n getShortLabelCode\n} from '../dicom/dicomCode';\nimport {getElementsFromJSONTags} from '../dicom/dicomWriter';\nimport {ImageReference} from '../dicom/dicomImageReference';\nimport {SopInstanceReference} from '../dicom/dicomSopInstanceReference';\nimport {\n getScoordFromShape,\n getShapeFromScoord\n} from '../dicom/dicomSpatialCoordinate';\nimport {guid} from '../math/stats';\nimport {logger} from '../utils/logger';\nimport {Annotation, AnnotationGroup} from './annotation';\nimport {Line} from '../math/line';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\nimport {ViewController} from '../app/viewController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Merge two tag lists.\n *\n * @param {object} tags1 Base list, will be modified.\n * @param {object} tags2 List to merge.\n */\nfunction mergeTags(tags1, tags2) {\n const keys2 = Object.keys(tags2);\n for (const tagName2 of keys2) {\n if (tags1[tagName2] !== undefined) {\n logger.trace('Overwritting tag: ' + tagName2);\n }\n tags1[tagName2] = tags2[tagName2];\n }\n}\n\n/**\n * {@link Annotation} factory.\n */\nexport class AnnotationFactory {\n\n /**\n * Possible warning created by checkElements.\n *\n * @type {string|undefined}\n */\n #warning;\n\n /**\n * Get a warning string if elements are not as expected.\n * Created by checkElements.\n *\n * @returns {string|undefined} The warning.\n */\n getWarning() {\n return this.#warning;\n }\n\n /**\n * Check dicom elements. Throws an error if not suitable.\n *\n * @param {Object} dataElements The DICOM data elements.\n * @returns {string|undefined} A possible warning.\n */\n checkElements(dataElements) {\n // reset\n this.#warning = undefined;\n\n const srContent = getSRContent(dataElements);\n if (typeof srContent.conceptNameCode !== 'undefined') {\n if (srContent.conceptNameCode.value !== getMeasurementGroupCode().value) {\n this.#warning = 'Not a measurement group';\n }\n } else {\n this.#warning = 'No root concept name code';\n }\n\n return this.#warning;\n }\n\n /**\n * Get an {@link Annotation} object from the read DICOM file.\n *\n * @param {Object} dataElements The DICOM tags.\n * @returns {AnnotationGroup} A new annotation group.\n */\n create(dataElements) {\n const srContent = getSRContent(dataElements);\n\n const annotations = [];\n\n for (const item of srContent.contentSequence) {\n if (item.valueType === ValueTypes.scoord) {\n const annotation = new Annotation();\n annotation.mathShape = getShapeFromScoord(item.value);\n // default\n annotation.id = guid();\n annotation.textExpr = '';\n\n for (const subItem of item.contentSequence) {\n if (subItem.valueType === ValueTypes.image &&\n subItem.relationshipType === RelationshipTypes.selectedFrom) {\n annotation.referenceSopUID =\n subItem.value.referencedSOPSequence.referencedSOPInstanceUID;\n }\n if (subItem.valueType === ValueTypes.uidref &&\n subItem.relationshipType === RelationshipTypes.hasProperties) {\n annotation.id = subItem.value;\n }\n if (subItem.valueType === ValueTypes.text &&\n subItem.relationshipType === RelationshipTypes.hasProperties) {\n annotation.textExpr = subItem.value;\n }\n }\n\n annotations.push(annotation);\n }\n }\n\n const annotationGroup = new AnnotationGroup(annotations);\n\n const safeGet = function (key) {\n let res;\n const element = dataElements[key];\n if (typeof element !== 'undefined') {\n res = element.value[0];\n }\n return res;\n };\n\n // StudyInstanceUID\n annotationGroup.setMetaValue('StudyInstanceUID', safeGet('0020000D'));\n // Modality\n annotationGroup.setMetaValue('Modality', safeGet('00080060'));\n // patient info\n annotationGroup.setMetaValue('PatientName', safeGet('00100010'));\n annotationGroup.setMetaValue('PatientID', safeGet('00100020'));\n annotationGroup.setMetaValue('PatientBirthDate', safeGet('00100030'));\n annotationGroup.setMetaValue('PatientSex', safeGet('00100040'));\n\n // ReferencedSeriesSequence\n const element = dataElements['00081115'];\n if (typeof element !== 'undefined') {\n const seriesElement = element.value[0]['0020000E'];\n if (typeof seriesElement !== 'undefined') {\n annotationGroup.setMetaValue(\n 'ReferencedSeriesSequence', {\n value: [{\n SeriesInstanceUID: seriesElement.value[0]\n }]\n }\n );\n }\n }\n\n return annotationGroup;\n }\n\n /**\n * Convert an annotation group into a DICOM SR object.\n *\n * @param {AnnotationGroup} annotationGroup The annotation group.\n * @param {Object} [extraTags] Optional list of extra tags.\n * @returns {Object} A list of dicom elements.\n */\n toDicom(annotationGroup, extraTags) {\n let tags = annotationGroup.getMeta();\n\n // transfer syntax: ExplicitVRLittleEndian\n tags.TransferSyntaxUID = '1.2.840.10008.1.2.1';\n // class: Basic Text SR Storage\n tags.SOPClassUID = '1.2.840.10008.5.1.4.1.1.88.11';\n tags.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.88.11';\n tags.CompletionFlag = 'PARTIAL';\n tags.VerificationFlag = 'UNVERIFIED';\n\n const now = new Date();\n tags.ContentDate = getDicomDate(dateToDateObj(now));\n tags.ContentTime = getDicomTime(dateToTimeObj(now));\n\n const contentSequence = [];\n\n for (const annotation of annotationGroup.getList()) {\n const srImage = new DicomSRContent(ValueTypes.image);\n srImage.relationshipType = RelationshipTypes.selectedFrom;\n srImage.conceptNameCode = getSourceImageCode();\n const sopRef = new SopInstanceReference();\n sopRef.referencedSOPClassUID = '';\n sopRef.referencedSOPInstanceUID = annotation.referenceSopUID;\n const imageRef = new ImageReference();\n imageRef.referencedSOPSequence = sopRef;\n srImage.value = imageRef;\n\n const srUid = new DicomSRContent(ValueTypes.uidref);\n srUid.relationshipType = RelationshipTypes.hasProperties;\n srUid.conceptNameCode = getTrackingIdentifierCode();\n srUid.value = annotation.id;\n\n const shortLabel = new DicomSRContent(ValueTypes.text);\n shortLabel.relationshipType = RelationshipTypes.hasProperties;\n shortLabel.conceptNameCode = getShortLabelCode();\n shortLabel.value = annotation.textExpr;\n\n const srScoord = new DicomSRContent(ValueTypes.scoord);\n srScoord.relationshipType = RelationshipTypes.contains;\n if (annotation.mathShape instanceof Line) {\n srScoord.conceptNameCode = getPathCode();\n } else {\n srScoord.conceptNameCode = getImageRegionCode();\n }\n srScoord.value = getScoordFromShape(annotation.mathShape);\n srScoord.contentSequence = [srImage, srUid, shortLabel];\n\n contentSequence.push(srScoord);\n }\n\n if (contentSequence.length !== 0) {\n const srContent = new DicomSRContent(ValueTypes.container);\n srContent.conceptNameCode = getMeasurementGroupCode();\n srContent.contentSequence = contentSequence;\n\n tags = {\n ...tags,\n ...getDicomSRContentItem(srContent)\n };\n }\n\n // merge extra tags if provided\n if (typeof extraTags !== 'undefined') {\n mergeTags(tags, extraTags);\n }\n\n return getElementsFromJSONTags(tags);\n }\n\n}","import {ListenerHandler} from '../utils/listen';\nimport {mergeObjects} from '../utils/operator';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from '../image/image';\nimport {AnnotationGroup} from '../image/annotation';\n/* eslint-enable no-unused-vars */\n\n/**\n * DICOM data: meta and possible image.\n */\nexport class DicomData {\n /**\n * DICOM meta data.\n *\n * @type {object}\n */\n meta;\n\n /**\n * Image extracted from meta data.\n *\n * @type {Image|undefined}\n */\n image;\n /**\n * Annotattion group extracted from meta data.\n *\n * @type {AnnotationGroup|undefined}\n */\n annotationGroup;\n\n /**\n * @param {object} meta The DICOM meta data.\n */\n constructor(meta) {\n this.meta = meta;\n }\n}\n\n/*\n * DicomData controller.\n */\nexport class DataController {\n\n /**\n * List of DICOM data.\n *\n * @type {Object}\n */\n #dataList = {};\n\n /**\n * Distinct data loaded counter.\n *\n * @type {number}\n */\n #dataIdCounter = -1;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get the next data id.\n *\n * @returns {string} The data id.\n */\n getNextDataId() {\n ++this.#dataIdCounter;\n return this.#dataIdCounter.toString();\n }\n\n /**\n * Get the list of ids in the data storage.\n *\n * @returns {string[]} The list of data ids.\n */\n getDataIds() {\n return Object.keys(this.#dataList);\n }\n\n /**\n * Reset the class: empty the data storage.\n */\n reset() {\n this.#dataList = {};\n }\n\n /**\n * Get a data at a given index.\n *\n * @param {string} dataId The data id.\n * @returns {DicomData|undefined} The DICOM data.\n */\n get(dataId) {\n return this.#dataList[dataId];\n }\n\n /**\n * Get the list of dataIds that contain the input UIDs.\n *\n * @param {string[]} uids A list of UIDs.\n * @returns {string[]} The list of dataIds that contain the UIDs.\n */\n getDataIdsFromSopUids(uids) {\n const res = [];\n // check input\n if (typeof uids === 'undefined' ||\n uids.length === 0) {\n return res;\n }\n const keys = Object.keys(this.#dataList);\n for (const key of keys) {\n if (this.#dataList[key].image.containsImageUids(uids)) {\n res.push(key);\n }\n }\n return res;\n }\n\n /**\n * Set the image at a given index.\n *\n * @param {string} dataId The data id.\n * @param {Image} image The image to set.\n */\n setImage(dataId, image) {\n this.#dataList[dataId].image = image;\n // fire image set\n this.#fireEvent({\n type: 'dataimageset',\n value: [image],\n dataid: dataId\n });\n // listen to image change\n image.addEventListener('imagecontentchange', this.#getFireEvent(dataId));\n image.addEventListener('imagegeometrychange', this.#getFireEvent(dataId));\n }\n\n /**\n * Add a new data.\n *\n * @param {string} dataId The data id.\n * @param {DicomData} data The data.\n */\n add(dataId, data) {\n if (typeof this.#dataList[dataId] !== 'undefined') {\n throw new Error('Data id already used in storage: ' + dataId);\n }\n // store the new image\n this.#dataList[dataId] = data;\n // fire a data add event\n this.#fireEvent({\n type: 'dataadd',\n dataid: dataId\n });\n // listen to image change\n if (typeof data.image !== 'undefined') {\n data.image.addEventListener(\n 'imagecontentchange', this.#getFireEvent(dataId));\n data.image.addEventListener(\n 'imagegeometrychange', this.#getFireEvent(dataId));\n }\n }\n\n /**\n * Remove a data from the list.\n *\n * @param {string} dataId The data id.\n */\n remove(dataId) {\n if (typeof this.#dataList[dataId] !== 'undefined') {\n // stop listeners\n const image = this.#dataList[dataId].image;\n if (typeof image !== 'undefined') {\n image.removeEventListener(\n 'imagecontentchange', this.#getFireEvent(dataId));\n image.removeEventListener(\n 'imagegeometrychange', this.#getFireEvent(dataId));\n }\n // remove data from list\n delete this.#dataList[dataId];\n // fire a data remove event\n this.#fireEvent({\n type: 'dataremove',\n dataid: dataId\n });\n }\n }\n\n /**\n * Update the current data.\n *\n * @param {string} dataId The data id.\n * @param {DicomData} data The data.\n */\n update(dataId, data) {\n if (typeof this.#dataList[dataId] === 'undefined') {\n throw new Error('Cannot find data to update: ' + dataId);\n }\n const dataToUpdate = this.#dataList[dataId];\n\n // add slice to current image\n if (typeof dataToUpdate.image !== 'undefined' &&\n typeof data.image !== 'undefined'\n ) {\n dataToUpdate.image.appendSlice(data.image);\n }\n\n // update meta data\n // TODO add time support\n let idKey = '';\n if (typeof data.meta['00020010'] !== 'undefined') {\n // dicom case, use 'InstanceNumber'\n idKey = '00200013';\n } else {\n idKey = 'imageUid';\n }\n dataToUpdate.meta = mergeObjects(\n dataToUpdate.meta,\n data.meta,\n idKey,\n 'value');\n\n // fire a data add event\n this.#fireEvent({\n type: 'dataupdate',\n dataid: dataId\n });\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Get a fireEvent function that adds the input data id\n * to the event value.\n *\n * @param {string} dataId The data id.\n * @returns {Function} A fireEvent function.\n */\n #getFireEvent(dataId) {\n return (event) => {\n event.dataid = dataId;\n this.#fireEvent(event);\n };\n }\n\n} // DataController class\n","import {arrayEquals} from './array';\n\n/**\n * Merge two similar objects.\n *\n * Objects need to be in the form of:\n * \n * {\n * idKey: {valueKey: [0]},\n * key0: {valueKey: [\"abc\"]},\n * key1: {valueKey: [33]}\n * }\n * .\n *\n * Merged objects will be in the form of:\n * \n * {\n * idKey: {valueKey: [0,1,2], merged: true},\n * key0: {valueKey: {\n * 0: [\"abc\"],\n * 1: [\"def\"],\n * 2: [\"ghi\"]\n * }},\n * key1: {valueKey: {\n * 0: [33],\n * 1: [44],\n * 2: [55]\n * }}\n * }\n * .\n *\n * @param {object} obj1 The first object, can be the result of a previous merge.\n * @param {object} obj2 The second object.\n * @param {string} idKey The key to use as index for duplicate values.\n * @param {string} valueKey The key to use to access object values.\n * @returns {object} The merged object.\n */\nexport function mergeObjects(obj1, obj2, idKey, valueKey) {\n const res = {};\n // check id key\n if (!idKey) {\n throw new Error('Cannot merge object with an undefined id key: ' + idKey);\n } else {\n if (!Object.prototype.hasOwnProperty.call(obj1, idKey)) {\n throw new Error('Id key not found in first object while merging: ' +\n idKey + ', obj: ' + obj1);\n }\n if (!Object.prototype.hasOwnProperty.call(obj2, idKey)) {\n throw new Error('Id key not found in second object while merging: ' +\n idKey + ', obj: ' + obj2);\n }\n }\n // check value key\n if (!valueKey) {\n throw new Error('Cannot merge object with an undefined value key: ' +\n valueKey);\n }\n\n // check if merged object\n let mergedObj1 = false;\n if (Object.prototype.hasOwnProperty.call(obj1[idKey], 'merged') &&\n obj1[idKey].merged) {\n mergedObj1 = true;\n }\n // handle the id part\n if (!Object.prototype.hasOwnProperty.call(obj1[idKey], valueKey)) {\n throw new Error('Id value not found in first object while merging: ' +\n idKey + ', valueKey: ' + valueKey + ', ojb: ' + obj1);\n }\n if (!Object.prototype.hasOwnProperty.call(obj2[idKey], valueKey)) {\n throw new Error('Id value not found in second object while merging: ' +\n idKey + ', valueKey: ' + valueKey + ', ojb: ' + obj2);\n }\n let id1 = obj1[idKey][valueKey];\n const id2 = obj2[idKey][valueKey][0];\n // update id key\n res[idKey] = obj1[idKey];\n if (mergedObj1) {\n // check if array does not include id2\n for (let k = 0; k < id1.length; ++k) {\n if (id1[k] === id2) {\n throw new Error('The first object already contains id2: ' +\n id2 + ', id1: ' + id1);\n }\n }\n res[idKey][valueKey].push(id2);\n } else {\n id1 = id1[0];\n if (id1 === id2) {\n throw new Error('Cannot merge object with same ids: ' +\n id1 + ', id2: ' + id2);\n }\n // update merge object\n res[idKey][valueKey].push(id2);\n res[idKey].merged = true;\n }\n\n // get keys\n const keys1 = Object.keys(obj1);\n // keys2 without duplicates of keys1\n const keys2 = Object.keys(obj2).filter(function (item) {\n return keys1.indexOf(item) < 0;\n });\n const keys = keys1.concat(keys2);\n\n // loop through keys\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n if (key !== idKey) {\n // first\n let value1;\n let subValue1;\n if (Object.prototype.hasOwnProperty.call(obj1, key)) {\n value1 = obj1[key];\n if (Object.prototype.hasOwnProperty.call(value1, valueKey)) {\n subValue1 = value1[valueKey];\n }\n }\n // second\n let value2;\n let subValue2;\n if (Object.prototype.hasOwnProperty.call(obj2, key)) {\n value2 = obj2[key];\n if (Object.prototype.hasOwnProperty.call(value2, valueKey)) {\n subValue2 = value2[valueKey];\n }\n }\n // result value\n let value;\n // use existing to copy properties\n if (typeof value1 !== 'undefined') {\n value = value1;\n } else if (typeof value2 !== 'undefined') {\n value = value2;\n }\n // create merge object if different values\n if (!arrayEquals(subValue1, subValue2)) {\n // add to merged object or create new\n if (mergedObj1) {\n if (Array.isArray(subValue1)) {\n // merged object with repeated value\n // copy it with the index list\n value[valueKey] = {};\n for (let j = 0; j < id1.length; ++j) {\n value[valueKey][id1[j]] = subValue1;\n }\n } else {\n value[valueKey] = subValue1;\n }\n // add obj2 value\n value[valueKey][id2] = subValue2;\n } else {\n // create merge object\n const newValue = {};\n newValue[id1] = subValue1;\n newValue[id2] = subValue2;\n value[valueKey] = newValue;\n }\n }\n // store value in result object\n res[key] = value;\n }\n }\n return res;\n}\n","import {logger} from '../utils/logger';\nimport {\n DicomParser,\n getSyntaxDecompressionName\n} from '../dicom/dicomParser';\nimport {ImageFactory} from './imageFactory';\nimport {MaskFactory} from './maskFactory';\nimport {PixelBufferDecoder} from './decoder';\nimport {AnnotationFactory} from './annotationFactory';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {DataElement} from '../dicom/dataElement';\nimport {DicomData} from '../app/dataController';\n/* eslint-enable no-unused-vars */\n\n/**\n * Create a View from a DICOM buffer.\n */\nexport class DicomBufferToView {\n\n /**\n * Converter options.\n *\n * @type {object}\n */\n #options;\n\n /**\n * Set the converter options.\n *\n * @param {object} opt The input options.\n */\n setOptions(opt) {\n this.#options = opt;\n }\n\n /**\n * Pixel buffer decoder.\n * Define only once to allow optional asynchronous mode.\n *\n * @type {object}\n */\n #pixelDecoder = null;\n\n // local tmp storage\n #dicomParserStore = [];\n #finalBufferStore = [];\n #decompressedSizes = [];\n #factories = [];\n\n /**\n * Get the factory associated to input DICOM elements.\n *\n * @param {Object} elements The DICOM elements.\n * @returns {ImageFactory|MaskFactory|AnnotationFactory|undefined}\n * The associated factory.\n */\n #getFactory(elements) {\n let factory;\n const modalityElement = elements['00080060'];\n if (typeof modalityElement !== 'undefined') {\n const modality = modalityElement.value[0];\n if (modality === 'SEG') {\n // mask factory for DICOM SEG\n factory = new MaskFactory();\n } else if (modality === 'SR') {\n // annotation factory for DICOM SR\n factory = new AnnotationFactory();\n }\n }\n // image factory for pixel data\n if (typeof factory === 'undefined') {\n const pixelElement = elements['7FE00010'];\n if (typeof pixelElement !== 'undefined') {\n factory = new ImageFactory();\n }\n }\n return factory;\n }\n\n /**\n * Generate the data object.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #generateData(index, origin) {\n const dataElements = this.#dicomParserStore[index].getDicomElements();\n const factory = this.#factories[index];\n // exit if no factory\n if (typeof factory === 'undefined') {\n return;\n }\n // create data\n try {\n const data = new DicomData(dataElements);\n if (factory instanceof AnnotationFactory) {\n data.annotationGroup = factory.create(dataElements);\n } else {\n data.image = factory.create(\n dataElements,\n this.#finalBufferStore[index],\n this.#options.numberOfFiles);\n }\n // call onloaditem\n this.onloaditem({\n data: data,\n source: origin,\n warn: factory.getWarning()\n });\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n }\n\n /**\n * Generate the image object from an uncompressed buffer.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #generateImageUncompressed(index, origin) {\n // send progress\n this.onprogress({\n lengthComputable: true,\n loaded: 100,\n total: 100,\n index: index,\n source: origin\n });\n // generate image\n this.#generateData(index, origin);\n // send load events\n this.onload({\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n\n /**\n * Generate the image object from an compressed buffer.\n *\n * @param {number} index The data index.\n * @param {Array} pixelBuffer The dicom parser.\n * @param {string} algoName The compression algorithm name.\n */\n #generateImageCompressed(index, pixelBuffer, algoName) {\n const dicomParser = this.#dicomParserStore[index];\n\n // gather pixel buffer meta data\n const bitsAllocated =\n dicomParser.getDicomElements()['00280100'].value[0];\n const pixelRepresentation =\n dicomParser.getDicomElements()['00280103'].value[0];\n const pixelMeta = {\n bitsAllocated: bitsAllocated,\n isSigned: (pixelRepresentation === 1)\n };\n const columnsElement = dicomParser.getDicomElements()['00280011'];\n const rowsElement = dicomParser.getDicomElements()['00280010'];\n if (typeof columnsElement !== 'undefined' &&\n typeof rowsElement !== 'undefined') {\n pixelMeta.sliceSize = columnsElement.value[0] * rowsElement.value[0];\n }\n const samplesPerPixelElement =\n dicomParser.getDicomElements()['00280002'];\n if (typeof samplesPerPixelElement !== 'undefined') {\n pixelMeta.samplesPerPixel = samplesPerPixelElement.value[0];\n }\n const planarConfigurationElement =\n dicomParser.getDicomElements()['00280006'];\n if (typeof planarConfigurationElement !== 'undefined') {\n pixelMeta.planarConfiguration = planarConfigurationElement.value[0];\n }\n\n const numberOfItems = pixelBuffer.length;\n\n // setup the decoder (one decoder per all converts)\n if (this.#pixelDecoder === null) {\n this.#pixelDecoder = new PixelBufferDecoder(\n algoName, numberOfItems);\n // callbacks\n // pixelDecoder.ondecodestart: nothing to do\n this.#pixelDecoder.ondecodeditem = (event) => {\n this.#onDecodedItem(event);\n // send onload and onloadend when all items have been decoded\n if (event.itemNumber + 1 === event.numberOfItems) {\n this.onload(event);\n this.onloadend(event);\n }\n };\n // pixelDecoder.ondecoded: nothing to do\n // pixelDecoder.ondecodeend: nothing to do\n this.#pixelDecoder.onerror = this.onerror;\n this.#pixelDecoder.onabort = this.onabort;\n }\n\n // launch decode\n for (let i = 0; i < numberOfItems; ++i) {\n this.#pixelDecoder.decode(pixelBuffer[i], pixelMeta,\n {\n itemNumber: i,\n numberOfItems: numberOfItems,\n index: index\n }\n );\n }\n }\n\n /**\n * Handle a decoded item event.\n *\n * @param {object} event The decoded item event.\n */\n #onDecodedItem(event) {\n // send progress\n this.onprogress({\n lengthComputable: true,\n loaded: event.itemNumber + 1,\n total: event.numberOfItems,\n index: event.index,\n source: origin\n });\n\n const dataIndex = event.index;\n\n // store decoded data\n const decodedData = event.data[0];\n if (event.numberOfItems !== 1) {\n // allocate buffer if not done yet\n if (typeof this.#decompressedSizes[dataIndex] === 'undefined') {\n this.#decompressedSizes[dataIndex] = decodedData.length;\n const fullSize = event.numberOfItems *\n this.#decompressedSizes[dataIndex];\n try {\n this.#finalBufferStore[dataIndex] =\n new decodedData.constructor(fullSize);\n } catch (error) {\n if (error instanceof RangeError) {\n const powerOf2 = Math.floor(Math.log(fullSize) / Math.log(2));\n logger.error('Cannot allocate ' +\n decodedData.constructor.name +\n ' of size: ' +\n fullSize + ' (>2^' + powerOf2 + ') for decompressed data.');\n }\n // abort\n this.#pixelDecoder.abort();\n // send events\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n // exit\n return;\n }\n }\n // hoping for all items to have the same size...\n if (decodedData.length !== this.#decompressedSizes[dataIndex]) {\n logger.warn('Unsupported varying decompressed data size: ' +\n decodedData.length + ' != ' + this.#decompressedSizes[dataIndex]);\n }\n // set buffer item data\n this.#finalBufferStore[dataIndex].set(\n decodedData, this.#decompressedSizes[dataIndex] * event.itemNumber);\n } else {\n this.#finalBufferStore[dataIndex] = decodedData;\n }\n\n // create image for the first item\n if (event.itemNumber === 0) {\n this.#generateData(dataIndex, origin);\n }\n }\n\n /**\n * Handle non image data.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #handleNonImageData(index, origin) {\n this.#generateData(index, origin);\n // send load events\n this.onload({\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n\n /**\n * Handle image data.\n *\n * @param {number} index The data index.\n * @param {string} origin The data origin.\n */\n #handleImageData(index, origin) {\n const dicomParser = this.#dicomParserStore[index];\n\n const pixelBuffer = dicomParser.getDicomElements()['7FE00010'].value;\n // help GC: discard pixel buffer from elements\n dicomParser.getDicomElements()['7FE00010'].value = [];\n this.#finalBufferStore[index] = pixelBuffer[0];\n\n // transfer syntax (always there)\n const syntax = dicomParser.getDicomElements()['00020010'].value[0];\n const algoName = getSyntaxDecompressionName(syntax);\n const needDecompression = typeof algoName !== 'undefined';\n\n if (needDecompression) {\n // generate image\n this.#generateImageCompressed(\n index,\n pixelBuffer,\n algoName);\n } else {\n this.#generateImageUncompressed(index, origin);\n }\n }\n\n /**\n * Get data from an input buffer using a DICOM parser.\n *\n * @param {ArrayBuffer} buffer The input data buffer.\n * @param {string} origin The data origin.\n * @param {number} dataIndex The data index.\n */\n convert(buffer, origin, dataIndex) {\n // start event\n this.onloadstart({\n source: origin,\n index: dataIndex\n });\n\n // DICOM parser\n const dicomParser = new DicomParser();\n\n if (typeof this.#options.defaultCharacterSet !== 'undefined') {\n dicomParser.setDefaultCharacterSet(this.#options.defaultCharacterSet);\n }\n // parse the buffer\n let factory;\n try {\n dicomParser.parse(buffer);\n // check elements\n factory = this.#getFactory(dicomParser.getDicomElements());\n if (typeof factory !== 'undefined') {\n factory.checkElements(dicomParser.getDicomElements());\n }\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n return;\n }\n\n // store\n this.#dicomParserStore[dataIndex] = dicomParser;\n this.#factories[dataIndex] = factory;\n\n // handle parsed data\n if (factory instanceof AnnotationFactory) {\n this.#handleNonImageData(dataIndex, origin);\n } else {\n this.#handleImageData(dataIndex, origin);\n }\n }\n\n /**\n * Abort a conversion.\n */\n abort() {\n // abort decoding, will trigger pixelDecoder.onabort\n if (this.#pixelDecoder) {\n this.#pixelDecoder.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class DicomBufferToView\n","import {MultiProgressHandler} from '../utils/progress';\nimport {loaderList} from './loaderList';\n\n/**\n * Memory loader.\n */\nexport class MemoryLoader {\n\n /**\n * Input data.\n *\n * @type {Array}\n */\n #inputData = null;\n\n /**\n * Data loader.\n *\n * @type {object}\n */\n #runningLoader = null;\n\n /**\n * Number of loaded data.\n *\n * @type {number}\n */\n #nLoad = 0;\n\n /**\n * Number of load end events.\n *\n * @type {number}\n */\n #nLoadend = 0;\n\n /**\n * The default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Store the current input.\n *\n * @param {object} data The input data.\n */\n #storeInputData(data) {\n this.#inputData = data;\n // reset counters\n this.#nLoad = 0;\n this.#nLoadend = 0;\n // clear storage\n this.#clearStoredLoader();\n }\n\n /**\n * Store the launched loader.\n *\n * @param {object} loader The launched loader.\n */\n #storeLoader(loader) {\n this.#runningLoader = loader;\n }\n\n /**\n * Clear the stored loader.\n *\n */\n #clearStoredLoader() {\n this.#runningLoader = null;\n }\n\n /**\n * Increment the number of loaded data\n * and call onload if loaded all data.\n *\n * @param {object} _event The load data event.\n */\n #addLoad = (_event) => {\n this.#nLoad++;\n // call onload when all is loaded\n // (not using the input event since it is not the\n // general load)\n if (this.#nLoad === this.#inputData.length) {\n this.onload({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Increment the counter of load end events\n * and run callbacks when all done, erroneus or not.\n *\n * @param {object} _event The load end event.\n */\n #addLoadend = (_event) => {\n this.#nLoadend++;\n // call onloadend when all is run\n // (not using the input event since it is not the\n // general load end)\n if (this.#nLoadend === this.#inputData.length) {\n this.onloadend({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Load a list of buffers.\n *\n * @param {Array} data The list of buffers to load.\n */\n load(data) {\n // check input\n if (typeof data === 'undefined' || data.length === 0) {\n return;\n }\n this.#storeInputData(data);\n\n // send start event\n this.onloadstart({\n source: data\n });\n\n // create prgress handler\n const mproghandler = new MultiProgressHandler(this.onprogress);\n mproghandler.setNToLoad(data.length);\n mproghandler.setNumberOfDimensions(1);\n\n // create loaders\n const loaders = [];\n for (let m = 0; m < loaderList.length; ++m) {\n loaders.push(new loaderList[m]());\n }\n\n // find an appropriate loader\n let dataElement = data[0];\n let loader = null;\n let foundLoader = false;\n for (let l = 0; l < loaders.length; ++l) {\n loader = loaders[l];\n if (loader.canLoadMemory(dataElement)) {\n foundLoader = true;\n // load options\n loader.setOptions({\n numberOfFiles: data.length,\n defaultCharacterSet: this.getDefaultCharacterSet()\n });\n // set loader callbacks\n // loader.onloadstart: nothing to do\n loader.onprogress = mproghandler.getUndefinedMonoProgressHandler(0);\n loader.onloaditem = this.onloaditem;\n loader.onload = this.#addLoad;\n loader.onloadend = this.#addLoadend;\n loader.onerror = this.onerror;\n loader.onabort = this.onabort;\n\n // store loader\n this.#storeLoader(loader);\n // exit\n break;\n }\n }\n if (!foundLoader) {\n throw new Error('No loader found for data: ' + dataElement.filename);\n }\n\n // loop on I/O elements\n for (let i = 0; i < data.length; ++i) {\n dataElement = data[i];\n // check loader\n if (!loader.canLoadMemory(dataElement)) {\n throw new Error('Input data of different type: ' +\n dataElement.filename);\n }\n // read\n loader.load(dataElement.data, dataElement.filename, i);\n }\n }\n\n /**\n * Abort a load.\n */\n abort() {\n // abort loader\n if (this.#runningLoader && this.#runningLoader.isLoading()) {\n this.#runningLoader.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class MemoryLoader\n","import {Size} from '../image/size';\nimport {Spacing} from '../image/spacing';\nimport {Geometry} from '../image/geometry';\nimport {Image} from '../image/image';\nimport {Point3D} from '../math/point';\n\n/**\n * Create a simple array buffer from an ImageData buffer.\n *\n * @param {object} imageData The ImageData taken from a context.\n * @returns {Uint8Array} The image buffer.\n */\nfunction imageDataToBuffer(imageData) {\n // remove alpha\n // TODO support passing the full image data\n const dataLen = imageData.data.length;\n const buffer = new Uint8Array((dataLen / 4) * 3);\n let j = 0;\n for (let i = 0; i < dataLen; i += 4) {\n buffer[j] = imageData.data[i];\n buffer[j + 1] = imageData.data[i + 1];\n buffer[j + 2] = imageData.data[i + 2];\n j += 3;\n }\n return buffer;\n}\n\n/**\n * Get an image from an input context imageData.\n *\n * @param {number} width The width of the coresponding image.\n * @param {number} height The height of the coresponding image.\n * @param {number} sliceIndex The slice index of the imageData.\n * @param {object} imageBuffer The image buffer.\n * @param {number} numberOfFrames The final number of frames.\n * @param {string} imageUid The image UID.\n * @returns {object} The corresponding view.\n */\nfunction getDefaultImage(\n width, height, sliceIndex,\n imageBuffer, numberOfFrames,\n imageUid) {\n // image size\n const imageSize = new Size([width, height, 1]);\n // default spacing\n // TODO: misleading...\n const imageSpacing = new Spacing([1, 1, 1]);\n // default origin\n const origin = new Point3D(0, 0, sliceIndex);\n // create image\n const geometry = new Geometry(origin, imageSize, imageSpacing);\n const image = new Image(geometry, imageBuffer, [imageUid]);\n image.setPhotometricInterpretation('RGB');\n // meta information\n const meta = {};\n meta.BitsStored = 8;\n if (typeof numberOfFrames !== 'undefined') {\n meta.numberOfFiles = numberOfFrames;\n }\n image.setMeta(meta);\n // return\n return image;\n}\n\n/**\n * Get data from an input image using a canvas.\n *\n * @param {HTMLImageElement} domImage The DOM Image,\n * an HTMLImageElement with extra info.\n * @param {string|File} origin The data origin.\n * @param {number} index The data index.\n * @returns {object} A load data event.\n */\nexport function getViewFromDOMImage(domImage, origin, index) {\n // image size\n const width = domImage.width;\n const height = domImage.height;\n\n // draw the image in the canvas in order to get its data\n const canvas = document.createElement('canvas');\n canvas.width = width;\n canvas.height = height;\n const ctx = canvas.getContext('2d');\n ctx.drawImage(domImage, 0, 0);\n // get the image data\n const imageData = ctx.getImageData(0, 0, width, height);\n\n // image properties\n const info = {};\n if (typeof origin === 'string') {\n info['origin'] = {value: origin};\n } else {\n info['fileName'] = {value: origin.name};\n info['fileType'] = {value: origin.type};\n info['fileLastModifiedDate'] = {value: origin.lastModified};\n }\n info['imageWidth'] = {value: width};\n info['imageHeight'] = {value: height};\n\n const sliceIndex = index ? index : 0;\n info['imageUid'] = {value: sliceIndex};\n\n // create view\n const imageBuffer = imageDataToBuffer(imageData);\n const image = getDefaultImage(\n width, height, sliceIndex, imageBuffer, 1, sliceIndex.toString());\n\n // return\n return {\n data: {\n image: image,\n info: info\n },\n source: origin\n };\n}\n\n/**\n * Get data from an input image using a canvas.\n *\n * @param {object} video The DOM Video, an HTMLVideoElement with extra info.\n * @param {Function} onloaditem On load callback.\n * @param {object} onload The function to call once the data is loaded.\n * @param {object} onprogress The function to call to report progress.\n * @param {object} onloadend The function to call to report load end.\n * @param {string|File} origin The data origin.\n * @param {number} dataIndex The data index.\n */\nexport function getViewFromDOMVideo(\n video, onloaditem, onload, onprogress, onloadend,\n origin, dataIndex) {\n // video size\n const width = video.videoWidth;\n const height = video.videoHeight;\n\n // default frame rate...\n const frameRate = 30;\n // number of frames\n const numberOfFrames = Math.ceil(video.duration * frameRate);\n\n // video properties\n const info = {};\n if (typeof origin === 'string') {\n info['origin'] = {value: origin};\n } else {\n info['fileName'] = {value: origin.name};\n info['fileType'] = {value: origin.type};\n info['fileLastModifiedDate'] = {value: origin.lastModified};\n }\n info['imageWidth'] = {value: width};\n info['imageHeight'] = {value: height};\n info['numberOfFrames'] = {value: numberOfFrames};\n info['imageUid'] = {value: 0};\n\n // draw the image in the canvas in order to get its data\n const canvas = document.createElement('canvas');\n canvas.width = width;\n canvas.height = height;\n const ctx = canvas.getContext('2d');\n\n // using seeked to loop through all video frames\n video.addEventListener('seeked', onseeked, false);\n\n // current frame index\n let frameIndex = 0;\n // video image\n let image = null;\n\n /**\n * Draw the context and store it as a frame.\n */\n function storeFrame() {\n // send progress\n onprogress({\n lengthComputable: true,\n loaded: frameIndex,\n total: numberOfFrames,\n index: dataIndex,\n source: origin\n });\n // draw image\n ctx.drawImage(video, 0, 0);\n // context to image buffer\n const imgBuffer = imageDataToBuffer(\n ctx.getImageData(0, 0, width, height));\n if (frameIndex === 0) {\n // create view\n image = getDefaultImage(\n width, height, 1, imgBuffer, numberOfFrames, dataIndex.toString());\n // call callback\n onloaditem({\n data: {\n image: image,\n info: info\n },\n source: origin\n });\n } else {\n image.appendFrameBuffer(imgBuffer, frameIndex);\n }\n // increment index\n ++frameIndex;\n }\n\n let nextTime = 0;\n\n /**\n * Handle seeked event.\n *\n * @param {object} event The seeked event.\n */\n function onseeked(event) {\n // store\n storeFrame();\n // set the next time\n // (not using currentTime, it seems to get offseted)\n nextTime += 1 / frameRate;\n if (nextTime <= event.target.duration) {\n this.currentTime = nextTime;\n } else {\n onload({\n source: origin\n });\n onloadend({\n source: origin\n });\n // stop listening\n video.removeEventListener('seeked', onseeked);\n }\n }\n\n // trigger the first seek\n video.currentTime = nextTime;\n}\n","import {DicomDataLoader} from './dicomDataLoader';\nimport {JSONTextLoader} from './jsonTextLoader';\nimport {MultipartLoader} from './multipartLoader';\nimport {RawImageLoader} from './rawImageLoader';\nimport {RawVideoLoader} from './rawVideoLoader';\nimport {ZipLoader} from './zipLoader';\n\nexport const loaderList = [\n DicomDataLoader,\n JSONTextLoader,\n MultipartLoader,\n RawImageLoader,\n RawVideoLoader,\n ZipLoader\n];\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\nimport {DicomBufferToView} from '../image/dicomBufferToView';\n\n/**\n * DICOM data loader.\n */\nexport class DicomDataLoader {\n\n /**\n * Loader options.\n *\n * @type {object}\n */\n #options = {};\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} opt The input options.\n */\n setOptions(opt) {\n this.#options = opt;\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n /**\n * DICOM buffer to View (asynchronous).\n *\n */\n #db2v = new DicomBufferToView();\n\n /**\n * Load data.\n *\n * @param {object} buffer The DICOM buffer.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // setup db2v ony once\n if (!this.#isLoading) {\n // pass options\n this.#db2v.setOptions(this.#options);\n // connect handlers\n this.#db2v.onloadstart = this.onloadstart;\n this.#db2v.onprogress = this.onprogress;\n this.#db2v.onloaditem = this.onloaditem;\n this.#db2v.onload = this.onload;\n this.#db2v.onloadend = (event) => {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onloadend(event);\n };\n this.#db2v.onerror = (event) => {\n event.source = origin;\n this.onerror(event);\n };\n this.#db2v.onabort = this.onabort;\n }\n\n // set loading flag\n this.#isLoading = true;\n // convert\n this.#db2v.convert(buffer, origin, index);\n }\n\n /**\n * Abort load.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // abort conversion, will trigger db2v.onabort\n this.#db2v.abort();\n }\n\n /**\n * Check if the loader can load the provided file.\n * True if one of the folowing conditions is true:\n * - the file has a 'dcm' extension,\n * - the file has no extension.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n const ext = getFileExtension(file.name);\n const hasNoExt = (ext === null);\n const hasDcmExt = (ext === 'dcm');\n return hasNoExt || hasDcmExt;\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'dicom',\n * - the `options.requestHeaders` contains a 'Accept: application/dicom',\n * - the url has a 'contentType' and it is 'application/dicom'\n * (as in wado urls),\n * - the url has no 'contentType' and no extension or the extension is 'dcm'.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'dicom') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'application/dicom' and no '+'\n const acceptValue = 'application/dicom';\n return startsWith(acceptHeader.value, acceptValue) &&\n acceptHeader.value[acceptValue.length] !== '+';\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n // extension\n const ext = getFileExtension(urlObjext.pathname);\n const hasNoExt = (ext === null);\n const hasDcmExt = (ext === 'dcm');\n // content type (for wado url)\n const contentType = urlObjext.searchParams.get('contentType');\n const hasContentType = contentType !== null &&\n typeof contentType !== 'undefined';\n const hasDicomContentType = (contentType === 'application/dicom');\n\n return hasContentType ? hasDicomContentType : (hasNoExt || hasDcmExt);\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n const contentType = mem['Content-Type'];\n if (typeof contentType !== 'undefined' &&\n contentType.startsWith('application/dicom')) {\n return true;\n }\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.ArrayBuffer;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The load progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class DicomDataLoader\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * JSON text loader.\n */\nexport class JSONTextLoader {\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n /**\n * Load data.\n *\n * @param {object} text The input text.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(text, origin, index) {\n // set loading flag\n this.#isLoading = true;\n this.onloadstart({\n source: origin\n });\n\n try {\n this.onprogress({\n lengthComputable: true,\n loaded: 100,\n total: 100,\n index: index,\n source: origin\n });\n const data = {\n data: text,\n source: origin\n };\n // only expecting one item\n this.onloaditem(data);\n this.onload(data);\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n } finally {\n // reset loading flag\n this.#isLoading = false;\n this.onloadend({\n source: origin\n });\n }\n }\n\n /**\n * Abort load: pass to listeners.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True if the file has a 'json' extension.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n const ext = getFileExtension(file.name);\n return (ext === 'json');\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'json',\n * - the `options.requestHeaders` contains a 'Accept: application/json' or\n * 'Accept: application/dicom+json',\n * - the url has a 'json' extension.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'json') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'application/json' or 'application/dicom+json\n return startsWith(acceptHeader.value, 'application/json') ||\n startsWith(acceptHeader.value, 'application/dicom+json');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n const ext = getFileExtension(urlObjext.pathname);\n return (ext === 'json');\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n const contentType = mem['Content-Type'];\n if (typeof contentType !== 'undefined' &&\n contentType.startsWith('application/json')) {\n return true;\n }\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.Text;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.Text;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The load progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class JSONTextLoader\n","import {startsWith} from '../utils/string';\nimport {parseMultipart} from '../utils/array';\nimport {MemoryLoader} from './memoryLoader';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * Multipart data loader.\n */\nexport class MultipartLoader {\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n /**\n * Load data.\n *\n * @param {object} buffer The DICOM buffer.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // send start event\n this.onloadstart({\n source: origin\n });\n // set loading flag\n this.#isLoading = true;\n\n const memoryIO = new MemoryLoader();\n // memoryIO.onloadstart: nothing to do\n memoryIO.onprogress = (progress) => {\n // add 50% to take into account the un-Multipartping\n progress.loaded = 50 + progress.loaded / 2;\n // set data index\n progress.index = index;\n this.onprogress(progress);\n };\n memoryIO.onloaditem = this.onloaditem;\n memoryIO.onload = this.onload;\n memoryIO.onloadend = (event) => {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onloadend(event);\n };\n memoryIO.onerror = this.onerror;\n memoryIO.onabort = this.onabort;\n // launch\n memoryIO.load(parseMultipart(buffer));\n }\n\n /**\n * Abort load: pass to listeners.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * Always returns false.\n *\n * @param {File} _file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(_file) {\n return false;\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'multipart',\n * - the `options.requestHeaders` contains a 'Accept: multipart/related'.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'multipart') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'multipart/related'\n return startsWith(acceptHeader.value, 'multipart/related');\n }\n }\n }\n\n return false;\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} _mem The memory object.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadMemory(_mem) {\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.ArrayBuffer;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class MultipartLoader\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {getViewFromDOMImage} from '../image/domReader';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * Raw image loader.\n */\nexport class RawImageLoader {\n\n /**\n * If abort is triggered, all image.onload callbacks have to be cancelled.\n *\n * @type {boolean}\n */\n #aborted = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing? TODO...\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return true;\n }\n\n /**\n * Create a Data URI from an HTTP request response.\n *\n * @param {ArrayBuffer} response The HTTP request response.\n * @param {string} dataType The data type.\n * @returns {string} The data URI.\n */\n #createDataUri(response, dataType) {\n // image type\n let imageType = dataType;\n if (!imageType || imageType === 'jpg') {\n imageType = 'jpeg';\n }\n // create uri\n const file = new Blob([response], {type: 'image/' + imageType});\n return window.URL.createObjectURL(file);\n }\n\n /**\n * Load data.\n *\n * @param {ArrayBuffer|string} buffer The read data.\n * @param {string|File} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n this.#aborted = false;\n // create a DOM image\n const image = new Image();\n // triggered by ctx.drawImage\n image.onload = (/*event*/) => {\n try {\n if (!this.#aborted) {\n this.onprogress({\n lengthComputable: true,\n loaded: 100,\n total: 100,\n index: index,\n source: origin\n });\n const data = getViewFromDOMImage(image, origin, index);\n // only expecting one item\n this.onloaditem(data);\n this.onload(data);\n }\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n } finally {\n this.onloadend({\n source: origin\n });\n }\n };\n // storing values to pass them on\n if (typeof buffer === 'string') {\n // file case\n image.src = buffer;\n } else if (typeof origin === 'string') {\n // url case\n const ext = origin.split('.').pop().toLowerCase();\n image.src = this.#createDataUri(buffer, ext);\n }\n }\n\n /**\n * Abort load.\n */\n abort() {\n this.#aborted = true;\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True for files with type 'image.*'.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n return (typeof file.type !== 'undefined' &&\n file.type.match('image.*') !== null);\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'rawimage',\n * - the `options.requestHeaders` contains an item\n * starting with 'Accept: image/'.\n * - the url has a 'contentType' and it is 'image/jpeg', 'image/png'\n * or 'image/gif' (as in wado urls),\n * - the url has no 'contentType' and the extension is 'jpeg', 'jpg',\n * 'png' or 'gif'.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'rawimage') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'image/'\n return startsWith(acceptHeader.value, 'image/');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n // extension\n const ext = getFileExtension(urlObjext.pathname);\n const hasImageExt = (ext === 'jpeg') || (ext === 'jpg') ||\n (ext === 'png') || (ext === 'gif');\n // content type (for wado url)\n const contentType = urlObjext.searchParams.get('contentType');\n const hasContentType = contentType !== null &&\n typeof contentType !== 'undefined';\n const hasImageContentType = (contentType === 'image/jpeg') ||\n (contentType === 'image/png') ||\n (contentType === 'image/gif');\n\n return hasContentType ? hasImageContentType : hasImageExt;\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.DataURL;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class RawImageLoader","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {getViewFromDOMVideo} from '../image/domReader';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\n\n/**\n * Raw video loader.\n *\n * Url example (cors enabled):\n * {@link https://raw.githubusercontent.com/clappr/clappr/master/test/fixtures/SampleVideo_360x240_1mb.mp4}.\n */\nexport class RawVideoLoader {\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing? TODO...\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return true;\n }\n\n /**\n * Create a Data URI from an HTTP request response.\n *\n * @param {object} response The HTTP request response.\n * @param {string} dataType The data type.\n * @returns {string} The data URI.\n */\n #createDataUri(response, dataType) {\n // image data as string\n const bytes = new Uint8Array(response);\n let videoDataStr = '';\n for (let i = 0; i < bytes.byteLength; ++i) {\n videoDataStr += String.fromCharCode(bytes[i]);\n }\n // create uri\n const uri = 'data:video/' + dataType +\n ';base64,' + window.btoa(videoDataStr);\n return uri;\n }\n\n /**\n * Internal Data URI load.\n *\n * @param {object} buffer The read data.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // create a DOM video\n const video = document.createElement('video');\n if (typeof origin === 'string') {\n // url case\n const ext = origin.split('.').pop().toLowerCase();\n video.src = this.#createDataUri(buffer, ext);\n } else {\n video.src = buffer;\n }\n // onload handler\n video.onloadedmetadata = (event) => {\n try {\n getViewFromDOMVideo(event.target,\n this.onloaditem, this.onload,\n this.onprogress, this.onloadend,\n origin, index);\n } catch (error) {\n this.onerror({\n error: error,\n source: origin\n });\n this.onloadend({\n source: origin\n });\n }\n };\n }\n\n /**\n * Abort load.\n */\n abort() {\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True for files with type 'video.*'.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n return (typeof file.type !== 'undefined' &&\n file.type.match('video.*') !== null);\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'rawvideo',\n * - the `options.requestHeaders` contains an item\n * starting with 'Accept: video/'.\n * - the url has a 'mp4', 'ogg' or 'webm' extension.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'rawvideo') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'video/'\n return startsWith(acceptHeader.value, 'video/');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n const ext = getFileExtension(urlObjext.pathname);\n return (ext === 'mp4') ||\n (ext === 'ogg') ||\n (ext === 'webm');\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.DataURL;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class RawVideoLoader\n","import {startsWith, getFileExtension} from '../utils/string';\nimport {getUrlFromUri} from '../utils/uri';\nimport {fileContentTypes} from './filesLoader';\nimport {urlContentTypes} from './urlsLoader';\nimport {MemoryLoader} from './memoryLoader';\n\n/**\n * The zip library.\n *\n * Ref: {@link https://github.com/Stuk/jszip}.\n *\n * @external JSZip\n */\nimport JSZip from 'jszip';\n\n/**\n * ZIP data loader.\n */\nexport class ZipLoader {\n\n /**\n * Loading flag.\n *\n * @type {boolean}\n */\n #isLoading = false;\n\n /**\n * Set the loader options.\n *\n * @param {object} _opt The input options.\n */\n setOptions(_opt) {\n // does nothing\n }\n\n /**\n * Is the load ongoing?\n *\n * @returns {boolean} True if loading.\n */\n isLoading() {\n return this.#isLoading;\n }\n\n #filename = '';\n #files = [];\n #zobjs = null;\n\n /**\n * JSZip.async callback.\n *\n * @param {ArrayBuffer} content Unzipped file image.\n * @param {object} origin The origin of the file.\n * @param {number} index The data index.\n */\n #zipAsyncCallback(content, origin, index) {\n this.#files.push({filename: this.#filename, data: content});\n\n // sent un-ziped progress with the data index\n // (max 50% to take into account the memory loading)\n const unzipPercent = this.#files.length * 100 / this.#zobjs.length;\n this.onprogress({\n lengthComputable: true,\n loaded: (unzipPercent / 2),\n total: 100,\n index: index,\n item: {\n loaded: unzipPercent,\n total: 100,\n source: origin\n }\n });\n\n // recursively call until we have all the files\n if (this.#files.length < this.#zobjs.length) {\n const num = this.#files.length;\n this.#filename = this.#zobjs[num].name;\n this.#zobjs[num].async('arrayBuffer').then((content) => {\n this.#zipAsyncCallback(content, origin, index);\n });\n } else {\n const memoryIO = new MemoryLoader();\n // memoryIO.onloadstart: nothing to do\n memoryIO.onprogress = (progress) => {\n // add 50% to take into account the un-zipping\n progress.loaded = 50 + progress.loaded / 2;\n // set data index\n progress.index = index;\n this.onprogress(progress);\n };\n memoryIO.onloaditem = this.onloaditem;\n memoryIO.onload = this.onload;\n memoryIO.onloadend = (event) => {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onloadend(event);\n };\n memoryIO.onerror = this.onerror;\n memoryIO.onabort = this.onabort;\n // launch\n memoryIO.load(this.#files);\n }\n }\n\n /**\n * Load data.\n *\n * @param {object} buffer The DICOM buffer.\n * @param {string} origin The data origin.\n * @param {number} index The data index.\n */\n load(buffer, origin, index) {\n // send start event\n this.onloadstart({\n source: origin\n });\n // set loading flag\n this.#isLoading = true;\n\n JSZip.loadAsync(buffer).then((zip) => {\n this.#files = [];\n this.#zobjs = zip.file(/.*\\.dcm/);\n // recursively load zip files into the files array\n const num = this.#files.length;\n this.#filename = this.#zobjs[num].name;\n this.#zobjs[num].async('arrayBuffer').then((content) => {\n this.#zipAsyncCallback(content, origin, index);\n });\n });\n }\n\n /**\n * Abort load: pass to listeners.\n */\n abort() {\n // reset loading flag\n this.#isLoading = false;\n // call listeners\n this.onabort({});\n this.onloadend({});\n }\n\n /**\n * Check if the loader can load the provided file.\n * True if the file has a 'zip' extension.\n *\n * @param {File} file The file to check.\n * @returns {boolean} True if the file can be loaded.\n */\n canLoadFile(file) {\n const ext = getFileExtension(file.name);\n return (ext === 'zip');\n }\n\n /**\n * Check if the loader can load the provided url.\n * True if one of the folowing conditions is true:\n * - the `options.forceLoader` is 'zip',\n * - the `options.requestHeaders` contains an item\n * starting with 'Accept: application/zip'.\n * - the url has a 'zip' extension.\n *\n * @param {string} url The url to check.\n * @param {object} [options] Optional url request options.\n * @returns {boolean} True if the url can be loaded.\n */\n canLoadUrl(url, options) {\n // check options\n if (typeof options !== 'undefined') {\n // check options.forceLoader\n if (typeof options.forceLoader !== 'undefined' &&\n options.forceLoader === 'zip') {\n return true;\n }\n // check options.requestHeaders for 'Accept'\n if (typeof options.requestHeaders !== 'undefined') {\n const isNameAccept = function (element) {\n return element.name === 'Accept';\n };\n const acceptHeader = options.requestHeaders.find(isNameAccept);\n if (typeof acceptHeader !== 'undefined') {\n // starts with 'application/zip'\n return startsWith(acceptHeader.value, 'application/zip');\n }\n }\n }\n\n const urlObjext = getUrlFromUri(url);\n const ext = getFileExtension(urlObjext.pathname);\n return (ext === 'zip');\n }\n\n /**\n * Check if the loader can load the provided memory object.\n *\n * @param {object} mem The memory object.\n * @returns {boolean} True if the object can be loaded.\n */\n canLoadMemory(mem) {\n const contentType = mem['Content-Type'];\n if (typeof contentType !== 'undefined' &&\n contentType.startsWith('application/zip')) {\n return true;\n }\n if (typeof mem.filename !== 'undefined') {\n const tmpFile = new File(['from memory'], mem.filename);\n return this.canLoadFile(tmpFile);\n }\n return false;\n }\n\n /**\n * Get the file content type needed by the loader.\n *\n * @returns {number} One of the 'fileContentTypes'.\n */\n loadFileAs() {\n return fileContentTypes.ArrayBuffer;\n }\n\n /**\n * Get the url content type needed by the loader.\n *\n * @returns {number} One of the 'urlContentTypes'.\n */\n loadUrlAs() {\n return urlContentTypes.ArrayBuffer;\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle an load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class ZipLoader\n","import {MultiProgressHandler} from '../utils/progress';\nimport {loaderList} from './loaderList';\n\n// file content types\nexport const fileContentTypes = {\n Text: 0,\n ArrayBuffer: 1,\n DataURL: 2\n};\n\n/**\n * Files loader.\n */\nexport class FilesLoader {\n\n /**\n * Input data.\n *\n * @type {File[]}\n */\n #inputData = null;\n\n /**\n * Array of launched file readers.\n *\n * @type {FileReader[]}\n */\n #readers = [];\n\n /**\n * Data loader.\n *\n * @type {object}\n */\n #runningLoader = null;\n\n /**\n * Number of loaded data.\n *\n * @type {number}\n */\n #nLoad = 0;\n\n /**\n * Number of load end events.\n *\n * @type {number}\n */\n #nLoadend = 0;\n\n /**\n * The default character set (optional).\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * Get the default character set.\n *\n * @returns {string} The default character set.\n */\n getDefaultCharacterSet() {\n return this.#defaultCharacterSet;\n }\n\n /**\n * Set the default character set.\n *\n * @param {string} characterSet The character set.\n */\n setDefaultCharacterSet(characterSet) {\n this.#defaultCharacterSet = characterSet;\n }\n\n /**\n * Store the current input.\n *\n * @param {File[]} data The input data.\n */\n #storeInputData(data) {\n this.#inputData = data;\n // reset counters\n this.#nLoad = 0;\n this.#nLoadend = 0;\n // clear storage\n this.#clearStoredReaders();\n this.#clearStoredLoader();\n }\n\n /**\n * Store a launched reader.\n *\n * @param {FileReader} reader The launched reader.\n */\n #storeReader(reader) {\n this.#readers.push(reader);\n }\n\n /**\n * Clear the stored readers.\n *\n */\n #clearStoredReaders() {\n this.#readers = [];\n }\n\n /**\n * Store the launched loader.\n *\n * @param {object} loader The launched loader.\n */\n #storeLoader(loader) {\n this.#runningLoader = loader;\n }\n\n /**\n * Clear the stored loader.\n *\n */\n #clearStoredLoader() {\n this.#runningLoader = null;\n }\n\n /**\n * Increment the number of loaded data\n * and call onload if loaded all data.\n *\n * @param {object} _event The load data event.\n */\n #addLoad = (_event) => {\n this.#nLoad++;\n // call onload when all is loaded\n // (not using the input event since it is\n // an individual load)\n if (this.#nLoad === this.#inputData.length) {\n this.onload({\n source: this.#inputData\n });\n }\n };\n\n /**\n * Increment the counter of load end events\n * and run callbacks when all done, erroneus or not.\n *\n * @param {object} _event The load end event.\n */\n #addLoadend = (_event) => {\n this.#nLoadend++;\n // call onloadend when all is run\n // (not using the input event since it is\n // an individual load end)\n if (this.#nLoadend === this.#inputData.length) {\n this.onloadend({\n source: this.#inputData\n });\n }\n };\n\n /**\n * @callback eventFn\n * @param {object} event The event.\n */\n\n /**\n * Augment a callback event with a srouce.\n *\n * @param {object} callback The callback to augment its event.\n * @param {object} source The source to add to the event.\n * @returns {eventFn} The augmented callback.\n */\n #augmentCallbackEvent(callback, source) {\n return (event) => {\n event.source = source;\n callback(event);\n };\n }\n\n /**\n * Get a load handler for a data element.\n *\n * @param {object} loader The associated loader.\n * @param {File} dataElement The data element.\n * @param {number} i The index of the element.\n * @returns {eventFn} A load handler.\n */\n #getLoadHandler(loader, dataElement, i) {\n return (event) => {\n loader.load(event.target.result, dataElement, i);\n };\n }\n\n\n /**\n * Load a list of files.\n *\n * @param {File[]} data The list of files to load.\n */\n load(data) {\n // check input\n if (typeof data === 'undefined' || data.length === 0) {\n return;\n }\n this.#storeInputData(data);\n\n // send start event\n this.onloadstart({\n source: data\n });\n\n // create prgress handler\n const mproghandler = new MultiProgressHandler(this.onprogress);\n mproghandler.setNToLoad(data.length);\n\n // create loaders\n const loaders = [];\n for (let m = 0; m < loaderList.length; ++m) {\n loaders.push(new loaderList[m]());\n }\n\n // find an appropriate loader\n let dataElement = data[0];\n let loader = null;\n let foundLoader = false;\n for (let l = 0; l < loaders.length; ++l) {\n loader = loaders[l];\n if (loader.canLoadFile(dataElement)) {\n foundLoader = true;\n // load options\n loader.setOptions({\n numberOfFiles: data.length,\n defaultCharacterSet: this.getDefaultCharacterSet()\n });\n // set loader callbacks\n // loader.onloadstart: nothing to do\n loader.onprogress = mproghandler.getUndefinedMonoProgressHandler(1);\n loader.onloaditem = this.onloaditem;\n loader.onload = this.#addLoad;\n loader.onloadend = this.#addLoadend;\n loader.onerror = this.onerror;\n loader.onabort = this.onabort;\n\n // store loader\n this.#storeLoader(loader);\n // exit\n break;\n }\n }\n if (!foundLoader) {\n throw new Error('No loader found for file: ' + dataElement.name);\n }\n\n // loop on I/O elements\n for (let i = 0; i < data.length; ++i) {\n dataElement = data[i];\n\n // check loader\n if (!loader.canLoadFile(dataElement)) {\n throw new Error('Input file of different type: ' + dataElement);\n }\n\n /**\n * The file reader.\n *\n * Ref: {@link https://developer.mozilla.org/en-US/docs/Web/API/FileReader}.\n *\n * @external FileReader\n */\n const reader = new FileReader();\n // store reader\n this.#storeReader(reader);\n\n // set reader callbacks\n // reader.onloadstart: nothing to do\n reader.onprogress = this.#augmentCallbackEvent(\n mproghandler.getMonoProgressHandler(i, 0), dataElement);\n reader.onload = this.#getLoadHandler(loader, dataElement, i);\n // reader.onloadend: nothing to do\n const errorCallback =\n this.#augmentCallbackEvent(this.onerror, dataElement);\n reader.onerror = (event) => {\n this.#addLoadend();\n errorCallback(event);\n };\n const abortCallback =\n this.#augmentCallbackEvent(this.onabort, dataElement);\n reader.onabort = (event) => {\n this.#addLoadend();\n abortCallback(event);\n };\n // read\n if (loader.loadFileAs() === fileContentTypes.Text) {\n reader.readAsText(dataElement);\n } else if (loader.loadFileAs() === fileContentTypes.DataURL) {\n reader.readAsDataURL(dataElement);\n } else if (loader.loadFileAs() === fileContentTypes.ArrayBuffer) {\n reader.readAsArrayBuffer(dataElement);\n }\n }\n }\n\n /**\n * Abort a load.\n */\n abort() {\n // abort readers\n for (let i = 0; i < this.#readers.length; ++i) {\n // 0: EMPTY, 1: LOADING, 2: DONE\n if (this.#readers[i].readyState === 1) {\n this.#readers[i].abort();\n }\n }\n // abort loader\n if (this.#runningLoader && this.#runningLoader.isLoading()) {\n this.#runningLoader.abort();\n }\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load item event fired\n * when a file item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class FilesLoader\n","import {FilesLoader} from '../io/filesLoader';\nimport {MemoryLoader} from '../io/memoryLoader';\nimport {UrlsLoader} from '../io/urlsLoader';\n\n/**\n * Load controller.\n */\nexport class LoadController {\n\n /**\n * The default character set.\n *\n * @type {string}\n */\n #defaultCharacterSet;\n\n /**\n * List of current loaders.\n *\n * @type {object}\n */\n #currentLoaders = {};\n\n /**\n * @param {string} defaultCharacterSet The default character set.\n */\n constructor(defaultCharacterSet) {\n this.#defaultCharacterSet = defaultCharacterSet;\n }\n\n /**\n * Load a list of files. Can be image files or a state file.\n *\n * @param {File[]} files The list of files to load.\n * @param {string} dataId The data Id.\n */\n loadFiles(files, dataId) {\n // has been checked for emptiness.\n const ext = files[0].name.split('.').pop().toLowerCase();\n if (ext === 'json') {\n this.#loadStateFile(files[0], dataId);\n } else {\n this.#loadImageFiles(files, dataId);\n }\n }\n\n /**\n * Load a list of URLs. Can be image files or a state file.\n *\n * @param {string[]} urls The list of urls to load.\n * @param {string} dataId The data Id.\n * @param {object} [options] The load options:\n * - requestHeaders: an array of {name, value} to use as request headers.\n * - withCredentials: credentials flag to pass to the request.\n */\n\n loadURLs(urls, dataId, options) {\n // has been checked for emptiness.\n const ext = urls[0].split('.').pop().toLowerCase();\n if (ext === 'json') {\n this.#loadStateUrl(urls[0], dataId, options);\n } else {\n this.#loadImageUrls(urls, dataId, options);\n }\n }\n\n /**\n * Load a list of ArrayBuffers.\n *\n * @param {Array} data The list of ArrayBuffers to load\n * in the form of [{name: '', filename: '', data: data}].\n * @param {string} dataId The data Id.\n */\n loadImageObject(data, dataId) {\n // create IO\n const memoryIO = new MemoryLoader();\n // load data\n this.#loadData(data, memoryIO, 'image', dataId);\n }\n\n /**\n * Get the currently loaded data ids.\n *\n * @returns {string[]} The data ids.\n */\n getLoadingDataIds() {\n return Object.keys(this.#currentLoaders);\n }\n\n /**\n * Abort an individual current loader.\n *\n * @param {string} dataId The data to stop loading.\n */\n abort(dataId) {\n if (typeof this.#currentLoaders[dataId] !== 'undefined') {\n this.#currentLoaders[dataId].loader.abort();\n delete this.#currentLoaders[dataId];\n }\n }\n\n // private ----------------------------------------------------------------\n\n /**\n * Load a list of image files.\n *\n * @param {File[]} files The list of image files to load.\n * @param {string} dataId The data Id.\n */\n #loadImageFiles(files, dataId) {\n // create IO\n const fileIO = new FilesLoader();\n fileIO.setDefaultCharacterSet(this.#defaultCharacterSet);\n // load data\n this.#loadData(files, fileIO, 'image', dataId);\n }\n\n /**\n * Load a list of image URLs.\n *\n * @param {string[]} urls The list of urls to load.\n * @param {string} [dataId] The data Id.\n * @param {object} [options] The load options:\n * - requestHeaders: an array of {name, value} to use as request headers.\n * - withCredentials: credentials flag to pass to the request.\n */\n #loadImageUrls(urls, dataId, options) {\n // create IO\n const urlIO = new UrlsLoader();\n urlIO.setDefaultCharacterSet(this.#defaultCharacterSet);\n // load data\n this.#loadData(urls, urlIO, 'image', dataId, options);\n }\n\n /**\n * Load a State file.\n *\n * @param {File} file The state file to load.\n * @param {string} dataId The data Id.\n */\n #loadStateFile(file, dataId) {\n // create IO\n const fileIO = new FilesLoader();\n // load data\n this.#loadData([file], fileIO, 'state', dataId);\n }\n\n\n /**\n * Load a State url.\n *\n * @param {string} url The state url to load.\n * @param {string} [dataId] The data Id.\n * @param {object} [options] The load options:\n * - requestHeaders: an array of {name, value} to use as request headers.\n * - withCredentials: credentials flag to pass to the request.\n */\n #loadStateUrl(url, dataId, options) {\n // create IO\n const urlIO = new UrlsLoader();\n // load data\n this.#loadData([url], urlIO, 'state', dataId, options);\n }\n\n /**\n * Load a list of data.\n *\n * @param {string[]|File[]|Array} data Array of data to load.\n * @param {object} loader The data loader.\n * @param {string} loadType The data load type: 'image' or 'state'.\n * @param {string} dataId The data id.\n * @param {object} [options] Options passed to the final loader.\n */\n #loadData(data, loader, loadType, dataId, options) {\n const eventInfo = {\n loadtype: loadType,\n dataid: dataId\n };\n\n // set callbacks\n loader.onloadstart = (event) => {\n // store loader to allow abort\n this.#currentLoaders[dataId] = {\n loader: loader,\n isFirstItem: true\n };\n // callback\n this.#augmentCallbackEvent(this.onloadstart, eventInfo)(event);\n };\n loader.onprogress = this.#augmentCallbackEvent(this.onprogress, eventInfo);\n loader.onloaditem = (event) => {\n const eventInfoItem = {\n loadtype: loadType,\n dataid: dataId\n };\n if (typeof this.#currentLoaders[dataId] !== 'undefined') {\n eventInfoItem.isfirstitem = this.#currentLoaders[dataId].isFirstItem;\n }\n // callback\n this.#augmentCallbackEvent(this.onloaditem, eventInfoItem)(event);\n // update loader\n if (typeof this.#currentLoaders[dataId] !== 'undefined' &&\n this.#currentLoaders[dataId].isFirstItem) {\n this.#currentLoaders[dataId].isFirstItem = false;\n }\n };\n loader.onload = this.#augmentCallbackEvent(this.onload, eventInfo);\n loader.onloadend = (event) => {\n // reset current loader\n delete this.#currentLoaders[dataId];\n // callback\n this.#augmentCallbackEvent(this.onloadend, eventInfo)(event);\n };\n loader.onerror = this.#augmentCallbackEvent(this.onerror, eventInfo);\n loader.onabort = this.#augmentCallbackEvent(this.onabort, eventInfo);\n // launch load\n try {\n loader.load(data, options);\n } catch (error) {\n this.onerror({\n error: error,\n dataid: dataId\n });\n this.onloadend({\n dataid: dataId\n });\n return;\n }\n }\n\n /**\n * Augment a callback event: adds loadtype to the event\n * passed to a callback.\n *\n * @param {object} callback The callback to update.\n * @param {object} info Info object to append to the event.\n * @returns {object} A function representing the modified callback.\n */\n #augmentCallbackEvent(callback, info) {\n return function (event) {\n const keys = Object.keys(info);\n for (let i = 0; i < keys.length; ++i) {\n const key = keys[i];\n event[key] = info[key];\n }\n callback(event);\n };\n }\n\n /**\n * Handle a load start event.\n * Default does nothing.\n *\n * @param {object} _event The load start event.\n */\n onloadstart(_event) {}\n\n /**\n * Handle a load progress event.\n * Default does nothing.\n *\n * @param {object} _event The progress event.\n */\n onprogress(_event) {}\n\n /**\n * Handle a load event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when a file has been loaded successfully.\n */\n onload(_event) {}\n\n /**\n * Handle a load item event.\n * Default does nothing.\n *\n * @param {object} _event The load event fired\n * when an item has been loaded successfully.\n */\n onloaditem(_event) {}\n\n /**\n * Handle a load end event.\n * Default does nothing.\n *\n * @param {object} _event The load end event fired\n * when a file load has completed, successfully or not.\n */\n onloadend(_event) {}\n\n /**\n * Handle an error event.\n * Default does nothing.\n *\n * @param {object} _event The error event.\n */\n onerror(_event) {}\n\n /**\n * Handle an abort event.\n * Default does nothing.\n *\n * @param {object} _event The abort event.\n */\n onabort(_event) {}\n\n} // class LoadController\n","import {ListenerHandler} from '../utils/listen';\nimport {getReverseOrientation} from '../dicom/dicomParser';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get a number toprecision function with the provided precision.\n *\n * @param {number} precision The precision to achieve.\n * @returns {Function} The to precision function.\n */\nfunction getNumberToPrecision(precision) {\n return function (num) {\n return Number(num).toPrecision(precision);\n };\n}\n\n/**\n * Create a default replace format from a given length.\n * For example: '{v0}, {v1}'.\n *\n * @param {number} length The length of the format.\n * @returns {string} A replace format.\n */\nfunction createDefaultReplaceFormat(length) {\n let res = '';\n for (let i = 0; i < length; ++i) {\n if (i !== 0) {\n res += ', ';\n }\n res += '{v' + i + '}';\n }\n return res;\n}\n\n/**\n * Replace flags in a input string. Flags are keywords surrounded with curly\n * braces in the form: '{v0}, {v1}'.\n *\n * @param {string} inputStr The input string.\n * @param {string[]} values An array of strings.\n * @example\n * var values = [\"a\", \"b\"];\n * var str = \"The length is: {v0}. The size is: {v1}\";\n * var res = replaceFlags(str, values);\n * // \"The length is: a. The size is: b\"\n * @returns {string} The result string.\n */\nfunction replaceFlags(inputStr, values) {\n let res = inputStr;\n for (let i = 0; i < values.length; ++i) {\n res = res.replace('{v' + i + '}', values[i]);\n }\n return res;\n}\n\n/**\n * DICOM Header overlay info.\n */\nexport class OverlayData {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Associated data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Overlay config.\n *\n * @type {object}\n */\n #configs;\n\n /**\n * List of event used by the config.\n *\n * @type {string[]}\n */\n #eventNames = [];\n\n /**\n * Flag to know if listening to app.\n *\n * @type {boolean}\n */\n #isListening;\n\n /**\n * Overlay data.\n *\n * @type {Array}\n */\n #data = [];\n\n /**\n * Current data uid: set on pos change.\n *\n * @type {number}\n */\n #currentDataUid;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * @param {App} app The associated application.\n * @param {string} dataId The associated data id.\n * @param {object} configs The overlay config.\n */\n constructor(app, dataId, configs) {\n this.#app = app;\n this.#dataId = dataId;\n this.#configs = configs;\n\n // parse overlays to get the list of events to listen to\n const keys = Object.keys(this.#configs);\n for (let i = 0; i < keys.length; ++i) {\n const config = this.#configs[keys[i]];\n for (let j = 0; j < config.length; ++j) {\n const eventType = config[j].event;\n if (typeof eventType !== 'undefined') {\n if (!this.#eventNames.includes(eventType)) {\n this.#eventNames.push(eventType);\n }\n }\n }\n }\n // add app listeners\n this.addAppListeners();\n }\n\n /**\n * Reset the data.\n */\n reset() {\n this.#data = [];\n this.#currentDataUid = undefined;\n }\n\n /**\n * Handle a new loaded item event.\n *\n * @param {object} data The item meta data.\n */\n addItemMeta(data) {\n // create and store overlay data\n let dataUid;\n // check if dicom data (00020010: transfer syntax)\n if (typeof data['00020010'] !== 'undefined') {\n if (typeof data['00080018'] !== 'undefined') {\n // SOP instance UID\n dataUid = data['00080018'].value[0];\n } else {\n dataUid = data.length;\n }\n this.#data[dataUid] = createOverlayData(data, this.#configs);\n } else {\n // image file case\n const keys = Object.keys(data);\n for (let d = 0; d < keys.length; ++d) {\n const obj = data[keys[d]];\n if (keys[d] === 'imageUid') {\n dataUid = obj.value;\n break;\n }\n }\n this.#data[dataUid] = createOverlayDataForDom(data, this.#configs);\n }\n // store uid\n this.#currentDataUid = dataUid;\n }\n\n /**\n * Handle a changed slice event.\n *\n * @param {object} event The slicechange event.\n */\n #onSliceChange = (event) => {\n if (event.dataid !== this.#dataId) {\n return;\n }\n if (typeof event.data !== 'undefined' &&\n typeof event.data.imageUid !== 'undefined' &&\n this.#currentDataUid !== event.data.imageUid) {\n this.#currentDataUid = event.data.imageUid;\n this.#updateData(event);\n }\n };\n\n /**\n * Update the overlay data.\n *\n * @param {object} event An event defined by the overlay map and\n * registered in toggleListeners.\n */\n #updateData = (event) => {\n if (event.dataid !== this.#dataId) {\n return;\n }\n\n const sliceOverlayData = this.#data[this.#currentDataUid];\n if (typeof sliceOverlayData === 'undefined') {\n console.warn('No slice overlay data for: ' + this.#currentDataUid);\n return;\n }\n\n for (let n = 0; n < sliceOverlayData.length; ++n) {\n let text = undefined;\n if (typeof sliceOverlayData[n].tags !== 'undefined') {\n // update tags only on slice change\n if (event.type === 'positionchange') {\n text = sliceOverlayData[n].value;\n }\n } else {\n // update text if the value is an event type\n if (typeof sliceOverlayData[n].event !== 'undefined' &&\n sliceOverlayData[n].event === event.type) {\n const format = sliceOverlayData[n].format;\n let values = event.value;\n // optional number precision\n if (typeof sliceOverlayData[n].precision !== 'undefined') {\n let mapFunc = null;\n if (sliceOverlayData[n].precision === 'round') {\n mapFunc = Math.round;\n } else {\n mapFunc = getNumberToPrecision(sliceOverlayData[n].precision);\n }\n values = values.map(mapFunc);\n }\n text = replaceFlags(format, values);\n }\n }\n if (typeof text !== 'undefined') {\n sliceOverlayData[n].value = text;\n }\n }\n\n // fire valuechange for listeners\n this.#fireEvent({type: 'valuechange', data: sliceOverlayData});\n };\n\n /**\n * Is this class listening to app events.\n *\n * @returns {boolean} True is listening to app events.\n */\n isListening() {\n return this.#isListening;\n }\n\n /**\n * Toggle info listeners.\n */\n addAppListeners() {\n // listen to update tags data\n this.#app.addEventListener('positionchange', this.#onSliceChange);\n // add event listeners\n for (let i = 0; i < this.#eventNames.length; ++i) {\n this.#app.addEventListener(this.#eventNames[i], this.#updateData);\n }\n // update flag\n this.#isListening = true;\n }\n\n /**\n * Toggle info listeners.\n */\n removeAppListeners() {\n // stop listening to update tags data\n this.#app.removeEventListener('positionchange', this.#onSliceChange);\n // remove event listeners\n for (let i = 0; i < this.#eventNames.length; ++i) {\n this.#app.removeEventListener(this.#eventNames[i], this.#updateData);\n }\n // update flag\n this.#isListening = false;\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {object} callback The method associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent(event) {\n this.#listenerHandler.fireEvent(event);\n }\n\n} // class OverlayData\n\n/**\n * Create overlay data array for a DICOM image.\n *\n * @param {object} dicomElements DICOM elements of the image.\n * @param {object} configs The overlay data configs.\n * @returns {Array} Overlay data array.\n */\nfunction createOverlayData(dicomElements, configs) {\n const overlays = [];\n let modality;\n const modElement = dicomElements['00080060'];\n if (typeof modElement !== 'undefined') {\n modality = modElement.value[0];\n } else {\n return overlays;\n }\n const config = configs[modality] || configs['*'];\n if (!config) {\n return overlays;\n }\n\n for (let n = 0; n < config.length; ++n) {\n // deep copy\n const overlay = JSON.parse(JSON.stringify(config[n]));\n\n // add tag values\n const tags = overlay.tags;\n if (typeof tags !== 'undefined' && tags.length !== 0) {\n // get values\n const values = [];\n for (let i = 0; i < tags.length; ++i) {\n const elem = dicomElements[tags[i]];\n if (typeof elem !== 'undefined') {\n values.push(dicomElements[tags[i]].value);\n } else {\n values.push('');\n }\n }\n // format\n if (typeof overlay.format === 'undefined' || overlay.format === null) {\n overlay.format = createDefaultReplaceFormat(values.length);\n }\n overlay.value = replaceFlags(overlay.format, values).trim();\n }\n\n // store\n overlays.push(overlay);\n }\n\n // (0020,0020) Patient Orientation\n const poElement = dicomElements['00200020'];\n if (typeof poElement !== 'undefined' &&\n poElement.value.length === 2\n ) {\n const po0 = poElement.value[0];\n const po1 = poElement.value[1];\n overlays.push({\n pos: 'cr', value: po0, format: '{v0}'\n });\n overlays.push({\n pos: 'cl', value: getReverseOrientation(po0), format: '{v0}'\n });\n overlays.push({\n pos: 'bc', value: po1, format: '{v0}'\n });\n overlays.push({\n pos: 'tc', value: getReverseOrientation(po1), format: '{v0}'\n });\n }\n\n return overlays;\n}\n\n/**\n * Create overlay data array for a DOM image.\n *\n * @param {object} info Meta data.\n * @param {object} configs The overlay data configs.\n * @returns {Array} Overlay data array.\n */\nfunction createOverlayDataForDom(info, configs) {\n const overlays = [];\n const config = configs.DOM;\n if (!config) {\n return overlays;\n }\n\n const infoKeys = Object.keys(info);\n\n for (let n = 0; n < config.length; ++n) {\n // deep copy\n const overlay = JSON.parse(JSON.stringify(config[n]));\n\n // add tag values\n const tags = overlay.tags;\n if (typeof tags !== 'undefined' && tags.length !== 0) {\n // get values\n const values = [];\n for (let i = 0; i < tags.length; ++i) {\n for (let j = 0; j < infoKeys.length; ++j) {\n if (tags[i] === infoKeys[j]) {\n values.push(info[infoKeys[j]].value);\n }\n }\n }\n // format\n if (typeof overlay.format === 'undefined' || overlay.format === null) {\n overlay.format = createDefaultReplaceFormat(values.length);\n }\n overlay.value = replaceFlags(overlay.format, values).trim();\n }\n\n // store\n overlays.push(overlay);\n }\n\n return overlays;\n}\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Get a normalised spin speed in the Y direction to try to support\n * trackpads (small and large deltaY) and mouse wheel (large deltaY).\n * Should return 1 or -1 for a single mouse wheel tick.\n *\n * @param {object} event The wheel event.\n * @returns {number} The normalised spin Y.\n */\nfunction getSpinY(event) {\n // (notes of 03/2024)\n\n // firefox seems to change the value of deltaY\n // if you ask for deltaMode before (?????)\n\n // deltaY (for a single mouse wheel tick):\n // - chrome: [linux] 120, [mac]: 4\n // - firefox: [linux] 132, [mac]: 16\n\n // wheelDelta (for a single mouse wheel tick):\n // - chrome: [linux] 120, [mac]: 240\n // - firefox: [linux] 120, [mac]: 48\n\n // -> using wheelDelta for mouse wheel detection as\n // it is consistently larger than trackpad scroll\n\n // wheelDeltaY and deltaY do not go in the same direction,\n // using -deltaY so that they do...\n\n if (typeof event.wheelDeltaY === 'undefined') {\n //logger.warn('No wheel delta, scroll could be tricky...);\n return -event.deltaY;\n } else {\n const threshold = 45;\n if (event.wheelDeltaY > threshold) {\n return 1;\n } else if (event.wheelDeltaY < -threshold) {\n return -1;\n } else {\n return -event.deltaY / 60;\n }\n }\n}\n\n/**\n * Class to sum wheel events and know if that sum\n * corresponds to a 'tick'.\n */\nclass ScrollSum {\n /**\n * The scroll sum.\n *\n * @type {number}\n */\n #sum = 0;\n\n /**\n * Get the scroll sum.\n *\n * @returns {number} The scroll sum.\n */\n getSum() {\n return this.#sum;\n }\n\n /**\n * Add scroll.\n *\n * @param {object} event The wheel event.\n */\n add(event) {\n this.#sum += getSpinY(event);\n }\n\n /**\n * Clear the scroll sum.\n */\n clear() {\n this.#sum = 0;\n }\n\n /**\n * Does the accumulated scroll correspond to a 'tick'.\n *\n * @returns {boolean} True if the sum corresponds to a 'tick'.\n */\n isTick() {\n return Math.abs(this.#sum) >= 1;\n }\n}\n\n/**\n * Scroll wheel class: provides a wheel event handler\n * that scroll the corresponding data.\n */\nexport class ScrollWheel {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Accumulated scroll.\n *\n * @type {ScrollSum}\n */\n #scrollSum = new ScrollSum();\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel(event) {\n this.#scrollSum.add(event);\n const up = this.#scrollSum.getSum() >= 0;\n\n // exit if no tick\n if (!this.#scrollSum.isTick()) {\n return;\n } else {\n this.#scrollSum.clear();\n }\n\n // prevent default page scroll\n event.preventDefault();\n\n const layerDetails = getLayerDetailsFromEvent(event);\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n let newPosition;\n if (layerGroup.canScroll()) {\n if (up) {\n newPosition = viewController.getIncrementScrollPosition();\n } else {\n newPosition = viewController.getDecrementScrollPosition();\n }\n } else if (layerGroup.moreThanOne(3)) {\n if (up) {\n newPosition = viewController.getIncrementPosition(3);\n } else {\n newPosition = viewController.getDecrementPosition(3);\n }\n }\n\n // set all layers if at least one can be set\n if (typeof newPosition !== 'undefined' &&\n layerGroup.isPositionInBounds(newPosition)) {\n viewController.setCurrentPosition(newPosition);\n }\n }\n\n} // ScrollWheel class\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Region Of Interest shape.\n * Note: should be a closed path.\n */\nexport class ROI {\n\n /**\n * List of points.\n *\n * @type {Point2D[]}\n */\n #points = [];\n\n /**\n * Get a point of the list at a given index.\n *\n * @param {number} index The index of the point to get\n * (beware, no size check).\n * @returns {Point2D} The Point2D at the given index.\n */\n getPoint(index) {\n return this.#points[index];\n }\n\n /**\n * Get the length of the point list.\n *\n * @returns {number} The length of the point list.\n */\n getLength() {\n return this.#points.length;\n }\n\n /**\n * Add a point to the ROI.\n *\n * @param {Point2D} point The Point2D to add.\n */\n addPoint(point) {\n this.#points.push(point);\n }\n\n /**\n * Add points to the ROI.\n *\n * @param {Point2D[]} rhs The array of POints2D to add.\n */\n addPoints(rhs) {\n this.#points = this.#points.concat(rhs);\n }\n\n} // ROI class\n","import {ROI} from '../math/roi';\nimport {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * ROI factory.\n */\nexport class RoiFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'roi-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number|undefined} The number of points.\n */\n getNPoints() {\n // undefined to end with double click\n return undefined;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 100;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a roi shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} [viewController] The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const roi = new ROI();\n // add input points to the ROI\n roi.addPoints(points);\n // points stored the Konvajs way\n const arr = [];\n for (let i = 0; i < roi.getLength(); ++i) {\n arr.push(roi.getPoint(i).getX());\n arr.push(roi.getPoint(i).getY());\n }\n // draw shape\n const kshape = new Konva.Line({\n points: arr,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape',\n closed: true\n });\n\n // text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n name: 'text'\n });\n let textExpr = '';\n if (typeof viewController !== 'undefined') {\n const modality = viewController.getModality();\n if (typeof defaults.labelText.roi[modality] !== 'undefined') {\n textExpr = defaults.labelText.roi[modality];\n } else {\n textExpr = defaults.labelText.roi['*'];\n }\n }\n ktext.setText(textExpr);\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: {}\n };\n\n // label\n const klabel = new Konva.Label({\n x: roi.getPoint(0).getX(),\n y: roi.getPoint(0).getY() + style.scale(10),\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update a roi shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n for (let i = 0; i < points.length; i = i + 2) {\n const px = points[i] + shape.x();\n const py = points[i + 1] + shape.y();\n const name = i.toString();\n anchors.push(getDefaultAnchor(\n px, py, name, style\n ));\n }\n return anchors;\n }\n\n /**\n * Update a roi shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kroi = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kroi instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n\n // update self\n const point = group.getChildren(function (node) {\n return node.id() === anchor.id();\n })[0];\n point.x(anchor.x());\n point.y(anchor.y());\n // update the roi point and compensate for possible drag\n // (the anchor id is the index of the point in the list)\n const points = kroi.points();\n const index = parseInt(anchor.id(), 10);\n points[index] = anchor.x() - kroi.x();\n points[index + 1] = anchor.y() - kroi.y();\n kroi.points(points);\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n ktext.setText(meta.textExpr);\n // update position\n const textPos = {\n x: points[0] + kroi.x(),\n y: points[1] + kroi.y() + style.scale(10)\n };\n klabel.position(textPos);\n }\n\n} // class RoiFactory\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Path shape.\n */\nexport class Path {\n\n /**\n * @param {Point2D[]} [inputPointArray] The list of Point2D that make\n * the path (optional).\n * @param {number[]} [inputControlPointIndexArray] The list of control\n * point of path, as indexes (optional).\n * Note: first and last point do not need to be equal.\n */\n constructor(inputPointArray, inputControlPointIndexArray) {\n /**\n * List of points.\n *\n * @type {Point2D[]}\n */\n this.pointArray = inputPointArray ? inputPointArray.slice() : [];\n /**\n * List of control points.\n *\n * @type {number[]}\n */\n this.controlPointIndexArray = inputControlPointIndexArray\n ? inputControlPointIndexArray.slice() : [];\n }\n\n /**\n * Get a point of the list.\n *\n * @param {number} index The index of the point\n * to get (beware, no size check).\n * @returns {Point2D} The Point2D at the given index.\n */\n getPoint(index) {\n return this.pointArray[index];\n }\n\n /**\n * Is the given point a control point.\n *\n * @param {Point2D} point The Point2D to check.\n * @returns {boolean} True if a control point.\n */\n isControlPoint(point) {\n const index = this.pointArray.indexOf(point);\n if (index !== -1) {\n return this.controlPointIndexArray.indexOf(index) !== -1;\n } else {\n throw new Error('Error: isControlPoint called with not in list point.');\n }\n }\n\n /**\n * Get the length of the path.\n *\n * @returns {number} The length of the path.\n */\n getLength() {\n return this.pointArray.length;\n }\n\n /**\n * Add a point to the path.\n *\n * @param {Point2D} point The Point2D to add.\n */\n addPoint(point) {\n this.pointArray.push(point);\n }\n\n /**\n * Add a control point to the path.\n *\n * @param {Point2D} point The Point2D to make a control point.\n */\n addControlPoint(point) {\n const index = this.pointArray.indexOf(point);\n if (index !== -1) {\n this.controlPointIndexArray.push(index);\n } else {\n throw new Error(\n 'Cannot mark a non registered point as control point.');\n }\n }\n\n /**\n * Add points to the path.\n *\n * @param {Point2D[]} newPointArray The list of Point2D to add.\n */\n addPoints(newPointArray) {\n this.pointArray = this.pointArray.concat(newPointArray);\n }\n\n /**\n * Append a Path to this one.\n *\n * @param {Path} other The Path to append.\n */\n appenPath(other) {\n const oldSize = this.pointArray.length;\n this.pointArray = this.pointArray.concat(other.pointArray);\n const indexArray = [];\n for (let i = 0; i < other.controlPointIndexArray.length; ++i) {\n indexArray[i] = other.controlPointIndexArray[i] + oldSize;\n }\n this.controlPointIndexArray =\n this.controlPointIndexArray.concat(indexArray);\n }\n\n} // Path class\n","/**\n * Circular Bucket Queue.\n *\n * Returns input'd points in sorted order. All operations run in roughly O(1)\n * time (for input with small cost values), but it has a strict requirement:\n *\n * If the most recent point had a cost of c, any points added should have a cost\n * c' in the range c <= c' <= c + (capacity - 1).\n */\nexport class BucketQueue {\n\n /**\n * @param {number} bits Number of bits.\n * @param {Function} cost_functor The cost functor.\n */\n constructor(bits, cost_functor) {\n this.bucketCount = 1 << bits; // # of buckets = 2^bits\n this.mask = this.bucketCount - 1; // 2^bits - 1 = index mask\n this.size = 0;\n\n this.loc = 0; // Current index in bucket list\n // Cost defaults to item value\n this.cost = (typeof (cost_functor) !== 'undefined')\n ? cost_functor : function (item) {\n return item;\n };\n this.buckets = this.buildArray(this.bucketCount);\n }\n\n push(item) {\n // Prepend item to the list in the appropriate bucket\n const bucket = this.getBucket(item);\n item.next = this.buckets[bucket];\n this.buckets[bucket] = item;\n\n this.size++;\n }\n\n pop() {\n if (this.size === 0) {\n throw new Error('Cannot pop, bucketQueue is empty.');\n }\n\n // Find first empty bucket\n while (this.buckets[this.loc] === null) {\n this.loc = (this.loc + 1) % this.bucketCount;\n }\n\n // All items in bucket have same cost, return the first one\n const ret = this.buckets[this.loc];\n this.buckets[this.loc] = ret.next;\n ret.next = null;\n\n this.size--;\n return ret;\n }\n\n // TODO: needs at least two items...\n remove(item) {\n // Tries to remove item from queue. Returns true on success, false otherwise\n if (!item) {\n return false;\n }\n\n // To find node, go to bucket and search through unsorted list.\n const bucket = this.getBucket(item);\n let node = this.buckets[bucket];\n\n while (node !== null &&\n !(node.next !== null &&\n item.x === node.next.x &&\n item.y === node.next.y)) {\n node = node.next;\n }\n\n if (node === null) {\n // Item not in list, ergo item not in queue\n return false;\n } else {\n // Found item, do standard list node deletion\n node.next = node.next.next;\n\n this.size--;\n return true;\n }\n }\n\n isEmpty() {\n return this.size === 0;\n }\n\n getBucket(item) {\n // Bucket index is the masked cost\n return this.cost(item) & this.mask;\n }\n\n buildArray(newSize) {\n // Create array and initialze pointers to null\n const buckets = new Array(newSize);\n\n for (let i = 0; i < buckets.length; i++) {\n buckets[i] = null;\n }\n\n return buckets;\n }\n\n} // class BucketQueue\n","import {BucketQueue} from './bucketQueue';\n\n// Pre-created to reduce allocation in inner loops\nconst __twothirdpi = (2 / (3 * Math.PI));\n\n/**\n * Compute grey scale.\n *\n * @param {Array} data The input data.\n * @param {number} width The width of the output.\n * @param {number} height The height of the output.\n * @returns {object} A greyscale object.\n */\nfunction computeGreyscale(data, width, height) {\n // Returns 2D augmented array containing greyscale data\n // Greyscale values found by averaging colour channels\n // Input should be in a flat RGBA array, with values between 0 and 255\n const greyscale = {\n data: []\n };\n\n // Compute actual values\n for (let y = 0; y < height; y++) {\n greyscale.data[y] = [];\n\n for (let x = 0; x < width; x++) {\n const p = (y * width + x) * 4;\n greyscale.data[y][x] = (data[p] + data[p + 1] + data[p + 2]) / (3 * 255);\n }\n }\n\n // Augment with convenience functions\n greyscale.dx = function (x, y) {\n if (x + 1 === this.data[y].length) {\n // If we're at the end, back up one\n x--;\n }\n return this.data[y][x + 1] - this.data[y][x];\n };\n\n greyscale.dy = function (x, y) {\n if (y + 1 === this.data.length) {\n // If we're at the end, back up one\n y--;\n }\n return this.data[y][x] - this.data[y + 1][x];\n };\n\n greyscale.gradMagnitude = function (x, y) {\n const dx = this.dx(x, y);\n const dy = this.dy(x, y);\n return Math.sqrt(dx * dx + dy * dy);\n };\n\n greyscale.laplace = function (x, y) {\n // Laplacian of Gaussian\n let lap = -16 * this.data[y][x];\n lap += this.data[y - 2][x];\n lap += this.data[y - 1][x - 1] +\n 2 * this.data[y - 1][x] +\n this.data[y - 1][x + 1];\n lap += this.data[y][x - 2] +\n 2 * this.data[y][x - 1] +\n 2 * this.data[y][x + 1] +\n this.data[y][x + 2];\n lap += this.data[y + 1][x - 1] +\n 2 * this.data[y + 1][x] +\n this.data[y + 1][x + 1];\n lap += this.data[y + 2][x];\n\n return lap;\n };\n\n return greyscale;\n}\n\n/**\n * Compute gradient.\n *\n * @param {object} greyscale The input greyscale.\n * @returns {object} A gradient object.\n */\nfunction computeGradient(greyscale) {\n // Returns a 2D array of gradient magnitude values for greyscale. The values\n // are scaled between 0 and 1, and then flipped, so that it works as a cost\n // function.\n const gradient = [];\n\n let max = 0; // Maximum gradient found, for scaling purposes\n\n let x = 0;\n let y = 0;\n\n for (y = 0; y < greyscale.data.length - 1; y++) {\n gradient[y] = [];\n\n for (x = 0; x < greyscale.data[y].length - 1; x++) {\n gradient[y][x] = greyscale.gradMagnitude(x, y);\n max = Math.max(gradient[y][x], max);\n }\n\n gradient[y][greyscale.data[y].length - 1] =\n gradient[y][greyscale.data.length - 2];\n }\n\n gradient[greyscale.data.length - 1] = [];\n for (let i = 0; i < gradient[0].length; i++) {\n gradient[greyscale.data.length - 1][i] =\n gradient[greyscale.data.length - 2][i];\n }\n\n // Flip and scale.\n for (y = 0; y < gradient.length; y++) {\n for (x = 0; x < gradient[y].length; x++) {\n // @ts-ignore\n gradient[y][x] = 1 - (gradient[y][x] / max);\n }\n }\n\n return gradient;\n}\n\n/**\n * @param {object} greyscale The input greyscale.\n * @returns {object} A laplace object.\n */\nfunction computeLaplace(greyscale) {\n // Returns a 2D array of Laplacian of Gaussian values\n const laplace = [];\n\n // Make the edges low cost here.\n\n laplace[0] = [];\n laplace[1] = [];\n for (let i = 1; i < greyscale.data.length; i++) {\n // Pad top, since we can't compute Laplacian\n laplace[0][i] = 1;\n laplace[1][i] = 1;\n }\n\n for (let y = 2; y < greyscale.data.length - 2; y++) {\n laplace[y] = [];\n // Pad left, ditto\n laplace[y][0] = 1;\n laplace[y][1] = 1;\n\n for (let x = 2; x < greyscale.data[y].length - 2; x++) {\n // Threshold needed to get rid of clutter.\n laplace[y][x] = (greyscale.laplace(x, y) > 0.33) ? 0 : 1;\n }\n\n // Pad right, ditto\n laplace[y][greyscale.data[y].length - 2] = 1;\n laplace[y][greyscale.data[y].length - 1] = 1;\n }\n\n laplace[greyscale.data.length - 2] = [];\n laplace[greyscale.data.length - 1] = [];\n for (let j = 1; j < greyscale.data.length; j++) {\n // Pad bottom, ditto\n laplace[greyscale.data.length - 2][j] = 1;\n laplace[greyscale.data.length - 1][j] = 1;\n }\n\n return laplace;\n}\n\n/**\n * Compute the X gradient.\n *\n * @param {object} greyscale The values.\n * @returns {Array} The gradient.\n */\nfunction computeGradX(greyscale) {\n // Returns 2D array of x-gradient values for greyscale\n const gradX = [];\n\n for (let y = 0; y < greyscale.data.length; y++) {\n gradX[y] = [];\n\n for (let x = 0; x < greyscale.data[y].length - 1; x++) {\n gradX[y][x] = greyscale.dx(x, y);\n }\n\n gradX[y][greyscale.data[y].length - 1] =\n gradX[y][greyscale.data[y].length - 2];\n }\n\n return gradX;\n}\n\n/**\n * Compute the Y gradient.\n *\n * @param {object} greyscale The values.\n * @returns {Array} The gradient.\n */\nfunction computeGradY(greyscale) {\n // Returns 2D array of y-gradient values for greyscale\n const gradY = [];\n\n for (let y = 0; y < greyscale.data.length - 1; y++) {\n gradY[y] = [];\n\n for (let x = 0; x < greyscale.data[y].length; x++) {\n gradY[y][x] = greyscale.dy(x, y);\n }\n }\n\n gradY[greyscale.data.length - 1] = [];\n for (let i = 0; i < greyscale.data[0].length; i++) {\n gradY[greyscale.data.length - 1][i] = gradY[greyscale.data.length - 2][i];\n }\n\n return gradY;\n}\n\n/**\n * Compute the gradient unit vector.\n *\n * @param {Array} gradX The X gradient.\n * @param {Array} gradY The Y gradient.\n * @param {number} px The point X.\n * @param {number} py The point Y.\n * @param {object} out The result.\n */\nfunction gradUnitVector(gradX, gradY, px, py, out) {\n // Returns the gradient vector at (px,py), scaled to a magnitude of 1\n const ox = gradX[py][px];\n const oy = gradY[py][px];\n\n let gvm = Math.sqrt(ox * ox + oy * oy);\n gvm = Math.max(gvm, 1e-100); // To avoid possible divide-by-0 errors\n\n out.x = ox / gvm;\n out.y = oy / gvm;\n}\n\n/**\n * Compute the gradient direction.\n *\n * @param {Array} gradX The X gradient.\n * @param {Array} gradY The Y gradient.\n * @param {number} px The point X.\n * @param {number} py The point Y.\n * @param {number} qx The q X.\n * @param {number} qy The q Y.\n * @returns {number} The direction.\n */\nfunction gradDirection(gradX, gradY, px, py, qx, qy) {\n const __dgpuv = {x: -1, y: -1};\n const __gdquv = {x: -1, y: -1};\n // Compute the gradiant direction, in radians, between to points\n gradUnitVector(gradX, gradY, px, py, __dgpuv);\n gradUnitVector(gradX, gradY, qx, qy, __gdquv);\n\n let dp = __dgpuv.y * (qx - px) - __dgpuv.x * (qy - py);\n let dq = __gdquv.y * (qx - px) - __gdquv.x * (qy - py);\n\n // Make sure dp is positive, to keep things consistant\n if (dp < 0) {\n dp = -dp;\n dq = -dq;\n }\n\n if (px !== qx && py !== qy) {\n // We're going diagonally between pixels\n dp *= Math.SQRT1_2;\n dq *= Math.SQRT1_2;\n }\n\n return __twothirdpi * (Math.acos(dp) + Math.acos(dq));\n}\n\n/**\n * Compute the sides.\n *\n * @param {number} dist The distance.\n * @param {Array} gradX The X gradient.\n * @param {Array} gradY The Y gradient.\n * @param {object} greyscale The value.\n * @returns {object} The sides.\n */\nfunction computeSides(dist, gradX, gradY, greyscale) {\n // Returns 2 2D arrays, containing inside and outside greyscale values.\n // These greyscale values are the intensity just a little bit along the\n // gradient vector, in either direction, from the supplied point. These\n // values are used when using active-learning Intelligent Scissors\n\n const sides = {};\n sides.inside = [];\n sides.outside = [];\n\n const guv = {x: -1, y: -1}; // Current gradient unit vector\n\n for (let y = 0; y < gradX.length; y++) {\n sides.inside[y] = [];\n sides.outside[y] = [];\n\n for (let x = 0; x < gradX[y].length; x++) {\n gradUnitVector(gradX, gradY, x, y, guv);\n\n //(x, y) rotated 90 = (y, -x)\n\n let ix = Math.round(x + dist * guv.y);\n let iy = Math.round(y - dist * guv.x);\n let ox = Math.round(x - dist * guv.y);\n let oy = Math.round(y + dist * guv.x);\n\n ix = Math.max(Math.min(ix, gradX[y].length - 1), 0);\n ox = Math.max(Math.min(ox, gradX[y].length - 1), 0);\n iy = Math.max(Math.min(iy, gradX.length - 1), 0);\n oy = Math.max(Math.min(oy, gradX.length - 1), 0);\n\n sides.inside[y][x] = greyscale.data[iy][ix];\n sides.outside[y][x] = greyscale.data[oy][ox];\n }\n }\n\n return sides;\n}\n\n/**\n * Gaussian blur an input buffer.\n *\n * @param {Array} buffer The input buffer.\n * @param {Array} out The result.\n */\nfunction gaussianBlur(buffer, out) {\n // Smooth values over to fill in gaps in the mapping\n out[0] = 0.4 * buffer[0] + 0.5 * buffer[1] + 0.1 * buffer[1];\n out[1] = 0.25 * buffer[0] + 0.4 * buffer[1] + 0.25 * buffer[2] +\n 0.1 * buffer[3];\n\n for (let i = 2; i < buffer.length - 2; i++) {\n out[i] = 0.05 * buffer[i - 2] + 0.25 * buffer[i - 1] +\n 0.4 * buffer[i] + 0.25 * buffer[i + 1] + 0.05 * buffer[i + 2];\n }\n\n const len = buffer.length;\n out[len - 2] = 0.25 * buffer[len - 1] + 0.4 * buffer[len - 2] +\n 0.25 * buffer[len - 3] + 0.1 * buffer[len - 4];\n out[len - 1] = 0.4 * buffer[len - 1] + 0.5 * buffer[len - 2] +\n 0.1 * buffer[len - 3];\n}\n\n/**\n * Scissors.\n *\n * Ref: Eric N. Mortensen, William A. Barrett, Interactive Segmentation with\n * Intelligent Scissors, Graphical Models and Image Processing, Volume 60,\n * Issue 5, September 1998, Pages 349-384, ISSN 1077-3169,\n * DOI: 10.1006/gmip.1998.0480.\n *\n * See: {@link http://www.sciencedirect.com/science/article/B6WG4-45JB8WN-9/2/6fe59d8089fd1892c2bfb82283065579}.\n *\n * Highly inspired from: {@link http://code.google.com/p/livewire-javascript/}.\n */\nexport class Scissors {\n\n constructor() {\n this.width = -1;\n this.height = -1;\n\n this.curPoint = null; // Corrent point we're searching on.\n this.searchGranBits = 8; // Bits of resolution for BucketQueue.\n this.searchGran = 1 << this.searchGranBits; //bits.\n this.pointsPerPost = 500;\n\n // Precomputed image data. All in ranges 0 >= x >= 1 and\n // all inverted (1 - x).\n this.greyscale = null; // Greyscale of image\n this.laplace = null; // Laplace zero-crossings (either 0 or 1).\n this.gradient = null; // Gradient magnitudes.\n this.gradX = null; // X-differences.\n this.gradY = null; // Y-differences.\n\n // Matrix mapping point => parent along shortest-path to root.\n this.parents = null;\n\n this.working = false; // Currently computing shortest paths?\n\n // Begin Training:\n this.trained = false;\n this.trainingPoints = null;\n\n this.edgeWidth = 2;\n this.trainingLength = 32;\n\n this.edgeGran = 256;\n this.edgeTraining = null;\n\n this.gradPointsNeeded = 32;\n this.gradGran = 1024;\n this.gradTraining = null;\n\n this.insideGran = 256;\n this.insideTraining = null;\n\n this.outsideGran = 256;\n this.outsideTraining = null;\n }\n // End Training\n\n\n // Begin training methods //\n getTrainingIdx(granularity, value) {\n return Math.round((granularity - 1) * value);\n }\n\n getTrainedEdge(edge) {\n return this.edgeTraining[this.getTrainingIdx(this.edgeGran, edge)];\n }\n\n getTrainedGrad(grad) {\n return this.gradTraining[this.getTrainingIdx(this.gradGran, grad)];\n }\n\n getTrainedInside(inside) {\n return this.insideTraining[this.getTrainingIdx(this.insideGran, inside)];\n }\n\n getTrainedOutside(outside) {\n return this.outsideTraining[this.getTrainingIdx(this.outsideGran, outside)];\n }\n // End training methods //\n\n setWorking(working) {\n // Sets working flag\n this.working = working;\n }\n\n setDimensions(width, height) {\n this.width = width;\n this.height = height;\n }\n\n setData(data) {\n if (this.width === -1 || this.height === -1) {\n // The width and height should have already been set\n throw new Error('Dimensions have not been set.');\n }\n\n this.greyscale = computeGreyscale(data, this.width, this.height);\n this.laplace = computeLaplace(this.greyscale);\n this.gradient = computeGradient(this.greyscale);\n this.gradX = computeGradX(this.greyscale);\n this.gradY = computeGradY(this.greyscale);\n\n const sides = computeSides(\n this.edgeWidth, this.gradX, this.gradY, this.greyscale);\n this.inside = sides.inside;\n this.outside = sides.outside;\n this.edgeTraining = [];\n this.gradTraining = [];\n this.insideTraining = [];\n this.outsideTraining = [];\n }\n\n findTrainingPoints(p) {\n // Grab the last handful of points for training\n const points = [];\n\n if (this.parents !== null) {\n for (let i = 0; i < this.trainingLength && p; i++) {\n points.push(p);\n p = this.parents[p.y][p.x];\n }\n }\n\n return points;\n }\n\n resetTraining() {\n this.trained = false; // Training is ignored with this flag set\n }\n\n doTraining(p) {\n // Compute training weights and measures\n this.trainingPoints = this.findTrainingPoints(p);\n\n if (this.trainingPoints.length < 8) {\n return; // Not enough points, I think. It might crash if length = 0.\n }\n\n const buffer = [];\n this.calculateTraining(\n buffer, this.edgeGran, this.greyscale, this.edgeTraining);\n this.calculateTraining(\n buffer, this.gradGran, this.gradient, this.gradTraining);\n this.calculateTraining(\n buffer, this.insideGran, this.inside, this.insideTraining);\n this.calculateTraining(\n buffer, this.outsideGran, this.outside, this.outsideTraining);\n\n if (this.trainingPoints.length < this.gradPointsNeeded) {\n // If we have two few training points, the gradient weight map might not\n // be smooth enough, so average with normal weights.\n this.addInStaticGrad(this.trainingPoints.length, this.gradPointsNeeded);\n }\n\n this.trained = true;\n }\n\n calculateTraining(\n buffer, granularity, input, output) {\n let i = 0;\n // Build a map of raw-weights to trained-weights by favoring input values\n buffer.length = granularity;\n for (i = 0; i < granularity; i++) {\n buffer[i] = 0;\n }\n\n let maxVal = 1;\n for (i = 0; i < this.trainingPoints.length; i++) {\n const p = this.trainingPoints[i];\n const idx = this.getTrainingIdx(granularity, input[p.y][p.x]);\n buffer[idx] += 1;\n\n maxVal = Math.max(maxVal, buffer[idx]);\n }\n\n // Invert and scale.\n for (i = 0; i < granularity; i++) {\n buffer[i] = 1 - buffer[i] / maxVal;\n }\n\n // Blur it, as suggested. Gets rid of static.\n gaussianBlur(buffer, output);\n }\n\n addInStaticGrad(have, need) {\n // Average gradient raw-weights to trained-weights map with standard weight\n // map so that we don't end up with something to spiky\n for (let i = 0; i < this.gradGran; i++) {\n this.gradTraining[i] = Math.min(\n this.gradTraining[i],\n 1 - i * (need - have) / (need * this.gradGran)\n );\n }\n }\n\n gradDirection(px, py, qx, qy) {\n return gradDirection(this.gradX, this.gradY, px, py, qx, qy);\n }\n\n dist(px, py, qx, qy) {\n // The grand culmunation of most of the code: the weighted distance function\n let grad = this.gradient[qy][qx];\n\n if (px === qx || py === qy) {\n // The distance is Euclidean-ish; non-diagonal edges should be shorter\n grad *= Math.SQRT1_2;\n }\n\n const lap = this.laplace[qy][qx];\n const dir = this.gradDirection(px, py, qx, qy);\n\n if (this.trained) {\n // Apply training magic\n const gradT = this.getTrainedGrad(grad);\n const edgeT = this.getTrainedEdge(this.greyscale.data[py][px]);\n const insideT = this.getTrainedInside(this.inside[py][px]);\n const outsideT = this.getTrainedOutside(this.outside[py][px]);\n\n return 0.3 * gradT + 0.3 * lap + 0.1 * (dir + edgeT + insideT + outsideT);\n } else {\n // Normal weights\n return 0.43 * grad + 0.43 * lap + 0.11 * dir;\n }\n }\n\n adj(p) {\n const list = [];\n\n const sx = Math.max(p.x - 1, 0);\n const sy = Math.max(p.y - 1, 0);\n const ex = Math.min(p.x + 1, this.greyscale.data[0].length - 1);\n const ey = Math.min(p.y + 1, this.greyscale.data.length - 1);\n\n let idx = 0;\n for (let y = sy; y <= ey; y++) {\n for (let x = sx; x <= ex; x++) {\n if (x !== p.x || y !== p.y) {\n list[idx++] = {x: x, y: y};\n }\n }\n }\n\n return list;\n }\n\n #costFunction = (p) => {\n return Math.round(this.searchGran * this.cost[p.y][p.x]);\n };\n\n setPoint(sp) {\n this.setWorking(true);\n\n this.curPoint = sp;\n\n let x = 0;\n let y = 0;\n\n this.visited = [];\n for (y = 0; y < this.height; y++) {\n this.visited[y] = [];\n for (x = 0; x < this.width; x++) {\n this.visited[y][x] = false;\n }\n }\n\n this.parents = [];\n for (y = 0; y < this.height; y++) {\n this.parents[y] = [];\n }\n\n this.cost = [];\n for (y = 0; y < this.height; y++) {\n this.cost[y] = [];\n for (x = 0; x < this.width; x++) {\n this.cost[y][x] = Number.MAX_VALUE;\n }\n }\n this.cost[sp.y][sp.x] = 0;\n\n this.pq = new BucketQueue(this.searchGranBits, this.#costFunction);\n this.pq.push(sp);\n }\n\n doWork() {\n if (!this.working) {\n return;\n }\n\n this.timeout = null;\n\n let pointCount = 0;\n const newPoints = [];\n while (!this.pq.isEmpty() && pointCount < this.pointsPerPost) {\n const p = this.pq.pop();\n newPoints.push(p);\n newPoints.push(this.parents[p.y][p.x]);\n\n this.visited[p.y][p.x] = true;\n\n const adjList = this.adj(p);\n for (let i = 0; i < adjList.length; i++) {\n const q = adjList[i];\n\n const pqCost = this.cost[p.y][p.x] + this.dist(p.x, p.y, q.x, q.y);\n\n if (pqCost < this.cost[q.y][q.x]) {\n if (this.cost[q.y][q.x] !== Number.MAX_VALUE) {\n // Already in PQ, must remove it so we can re-add it.\n this.pq.remove(q);\n }\n\n this.cost[q.y][q.x] = pqCost;\n this.parents[q.y][q.x] = p;\n this.pq.push(q);\n }\n }\n\n pointCount++;\n }\n\n return newPoints;\n }\n\n} // Scissors class\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\n/* eslint-enable no-unused-vars */\n\n/**\n * Threshold an image between an input minimum and maximum.\n */\nexport class Threshold {\n /**\n * Threshold minimum.\n *\n * @type {number}\n */\n #min = 0;\n\n /**\n * Threshold maximum.\n *\n * @type {number}\n */\n #max = 0;\n\n /**\n * Get the threshold minimum.\n *\n * @returns {number} The threshold minimum.\n */\n getMin() {\n return this.#min;\n }\n\n /**\n * Set the threshold minimum.\n *\n * @param {number} val The threshold minimum.\n */\n setMin(val) {\n this.#min = val;\n }\n\n /**\n * Get the threshold maximum.\n *\n * @returns {number} The threshold maximum.\n */\n getMax() {\n return this.#max;\n }\n\n /**\n * Set the threshold maximum.\n *\n * @param {number} val The threshold maximum.\n */\n setMax(val) {\n this.#max = val;\n }\n\n /**\n * Get the name of the filter.\n *\n * @returns {string} The name of the filter.\n */\n getName() {\n return 'Threshold';\n }\n\n /**\n * Original image.\n *\n * @type {Image}\n */\n #originalImage = null;\n\n /**\n * Set the original image.\n *\n * @param {Image} image The original image.\n */\n setOriginalImage(image) {\n this.#originalImage = image;\n }\n\n /**\n * Get the original image.\n *\n * @returns {Image} The original image.\n */\n getOriginalImage() {\n return this.#originalImage;\n }\n\n /**\n * Transform the main image using this filter.\n *\n * @returns {Image} The transformed image.\n */\n update() {\n const image = this.getOriginalImage();\n const imageMin = image.getDataRange().min;\n const threshFunction = (value) => {\n if (value < this.getMin() || value > this.getMax()) {\n return imageMin;\n } else {\n return value;\n }\n };\n return image.transform(threshFunction);\n }\n\n} // class Threshold\n\n/**\n * Sharpen an image using a sharpen convolution matrix.\n */\nexport class Sharpen {\n /**\n * Get the name of the filter.\n *\n * @returns {string} The name of the filter.\n */\n getName() {\n return 'Sharpen';\n }\n\n /**\n * Original image.\n *\n * @type {Image}\n */\n #originalImage = null;\n\n /**\n * Set the original image.\n *\n * @param {Image} image The original image.\n */\n setOriginalImage(image) {\n this.#originalImage = image;\n }\n\n /**\n * Get the original image.\n *\n * @returns {Image} The original image.\n */\n getOriginalImage() {\n return this.#originalImage;\n }\n\n /**\n * Transform the main image using this filter.\n *\n * @returns {Image} The transformed image.\n */\n update() {\n const image = this.getOriginalImage();\n /* eslint-disable @stylistic/js/array-element-newline */\n return image.convolute2D([\n 0, -1, 0,\n -1, 5, -1,\n 0, -1, 0\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n }\n\n} // class Sharpen\n\n/**\n * Apply a Sobel filter to an image.\n */\nexport class Sobel {\n /**\n * Get the name of the filter.\n *\n * @returns {string} The name of the filter.\n */\n getName() {\n return 'Sobel';\n }\n\n /**\n * Original image.\n *\n * @type {Image}\n */\n #originalImage = null;\n\n /**\n * Set the original image.\n *\n * @param {Image} image The original image.\n */\n setOriginalImage(image) {\n this.#originalImage = image;\n }\n\n /**\n * Get the original image.\n *\n * @returns {Image} The original image.\n */\n getOriginalImage() {\n return this.#originalImage;\n }\n\n /**\n * Transform the main image using this filter.\n *\n * @returns {Image} The transformed image.\n */\n update() {\n const image = this.getOriginalImage();\n /* eslint-disable @stylistic/js/array-element-newline */\n const gradX = image.convolute2D([\n 1, 0, -1,\n 2, 0, -2,\n 1, 0, -1\n ]);\n const gradY = image.convolute2D([\n 1, 2, 1,\n 0, 0, 0,\n -1, -2, -1\n ]);\n /* eslint-enable @stylistic/js/array-element-newline */\n return gradX.compose(gradY, function (x, y) {\n return Math.sqrt(x * x + y * y);\n });\n }\n\n} // class Sobel\n","import {ListenerHandler} from '../utils/listen';\nimport {\n Threshold as ThresholdFilter,\n Sobel as SobelFilter,\n Sharpen as SharpenFilter\n} from '../image/filter';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Filter tool.\n */\nexport class Filter {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Filter list.\n *\n * @type {object}\n */\n #filterList = null;\n\n /**\n * Selected filter.\n *\n * @type {object}\n */\n #selectedFilter = 0;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the tool.\n *\n * @param {boolean} bool Flag to activate or not.\n */\n activate(bool) {\n // setup event listening\n for (const key in this.#filterList) {\n if (bool) {\n this.#filterList[key].addEventListener('filterrun', this.#fireEvent);\n this.#filterList[key].addEventListener('filter-undo', this.#fireEvent);\n } else {\n this.#filterList[key].removeEventListener(\n 'filterrun', this.#fireEvent);\n this.#filterList[key].removeEventListener(\n 'filter-undo', this.#fireEvent);\n }\n }\n }\n\n /**\n * Set the tool options.\n *\n * @param {object} options The list of filter names amd classes.\n */\n setOptions(options) {\n this.#filterList = {};\n // try to instanciate filters from the options\n for (const key in options) {\n this.#filterList[key] = new options[key](this.#app);\n }\n }\n\n /**\n * Get the type of tool options: here 'instance' since the filter\n * list contains instances of each possible filter.\n *\n * @returns {string} The type.\n */\n getOptionsType() {\n return 'instance';\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // setup event listening\n for (const key in this.#filterList) {\n this.#filterList[key].init();\n }\n }\n\n /**\n * Handle keydown event.\n *\n * @param {object} event The keydown event.\n */\n keydown = (event) => {\n event.context = 'Filter';\n this.#app.onKeydown(event);\n };\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {string[]} The list of event names.\n */\n getEventNames() {\n return ['filterrun', 'filterundo'];\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Get the selected filter.\n *\n * @returns {object} The selected filter.\n */\n getSelectedFilter() {\n return this.#selectedFilter;\n }\n\n /**\n * Set the tool live features: filter name.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.filterName !== 'undefined') {\n // check if we have it\n if (!this.hasFilter(features.filterName)) {\n throw new Error('Unknown filter: \\'' + features.filterName + '\\'');\n }\n // de-activate last selected\n if (this.#selectedFilter) {\n this.#selectedFilter.activate(false);\n }\n // enable new one\n this.#selectedFilter = this.#filterList[features.filterName];\n // activate the selected filter\n this.#selectedFilter.activate(true);\n }\n if (typeof features.run !== 'undefined' && features.run) {\n let args = {};\n if (typeof features.runArgs !== 'undefined') {\n args = features.runArgs;\n }\n this.getSelectedFilter().run(args);\n }\n }\n\n /**\n * Get the list of filters.\n *\n * @returns {Array} The list of filter objects.\n */\n getFilterList() {\n return this.#filterList;\n }\n\n /**\n * Check if a filter is in the filter list.\n *\n * @param {string} name The name to check.\n * @returns {string} The filter list element for the given name.\n */\n hasFilter(name) {\n return this.#filterList[name];\n }\n\n} // class Filter\n\n/**\n * Threshold filter tool.\n */\nexport class Threshold {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Associated filter.\n *\n * @type {object}\n */\n #filter = new ThresholdFilter();\n\n /**\n * Flag to know wether to reset the image or not.\n *\n * @type {boolean}\n */\n #resetImage = true;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the filter.\n *\n * @param {boolean} bool Flag to activate or not.\n */\n activate(bool) {\n // reset the image when the tool is activated\n if (bool) {\n this.#resetImage = true;\n }\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // does nothing\n }\n\n /**\n * Run the filter.\n *\n * @param {*} args The filter arguments.\n */\n run(args) {\n if (typeof args.dataId === 'undefined') {\n throw new Error('No dataId to run threshod filter on.');\n }\n this.#filter.setMin(args.min);\n this.#filter.setMax(args.max);\n // reset the image if asked\n if (this.#resetImage) {\n const image = this.#app.getData(args.dataId).image;\n this.#filter.setOriginalImage(image);\n this.#resetImage = false;\n }\n const command = new RunFilterCommand(this.#filter, args.dataId, this.#app);\n command.onExecute = this.#fireEvent;\n command.onUndo = this.#fireEvent;\n command.execute();\n // save command in undo stack\n this.#app.addToUndoStack(command);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // class Threshold\n\n/**\n * Sharpen filter tool.\n */\nexport class Sharpen {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the filter.\n *\n * @param {boolean} _bool Flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // does nothing\n }\n\n /**\n * Run the filter.\n *\n * @param {*} args The filter arguments.\n */\n run(args) {\n if (typeof args.dataId === 'undefined') {\n throw new Error('No dataId to run sharpen filter on.');\n }\n const filter = new SharpenFilter();\n const image = this.#app.getData(args.dataId).image;\n filter.setOriginalImage(image);\n const command = new RunFilterCommand(filter, args.dataId, this.#app);\n command.onExecute = this.#fireEvent;\n command.onUndo = this.#fireEvent;\n command.execute();\n // save command in undo stack\n this.#app.addToUndoStack(command);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // filter.Sharpen\n\n/**\n * Sobel filter tool.\n */\nexport class Sobel {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Activate the filter.\n *\n * @param {boolean} _bool Flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the filter. Called once the image is loaded.\n */\n init() {\n // does nothing\n }\n\n /**\n * Run the filter.\n *\n * @param {*} args The filter arguments.\n */\n run(args) {\n if (typeof args.dataId === 'undefined') {\n throw new Error('No dataId to run sobel filter on.');\n }\n const filter = new SobelFilter();\n const image = this.#app.getData(args.dataId).image;\n filter.setOriginalImage(image);\n const command = new RunFilterCommand(filter, args.dataId, this.#app);\n command.onExecute = this.#fireEvent;\n command.onUndo = this.#fireEvent;\n command.execute();\n // save command in undo stack\n this.#app.addToUndoStack(command);\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n} // class filter.Sobel\n\n/**\n * Run filter command.\n */\nexport class RunFilterCommand {\n\n /**\n * The filter to run.\n *\n * @type {object}\n */\n #filter;\n\n /**\n * Data id.\n *\n * @type {string}\n */\n #dataId;\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {object} filter The filter to run.\n * @param {string} dataId The data to filter.\n * @param {App} app The associated application.\n */\n constructor(filter, dataId, app) {\n this.#filter = filter;\n this.#dataId = dataId;\n this.#app = app;\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Filter-' + this.#filter.getName();\n }\n\n /**\n * Execute the command.\n *\n * @fires RunFilterCommand#filterrun\n */\n execute() {\n // run filter and set app image\n this.#app.setImage(this.#dataId, this.#filter.update());\n // update display\n this.#app.render(this.#dataId);\n /**\n * Filter run event.\n *\n * @event RunFilterCommand#filterrun\n * @type {object}\n * @property {string} type The event type: filterrun.\n * @property {number} id The id of the run command.\n */\n const event = {\n type: 'filterrun',\n id: this.getName(),\n dataId: this.#dataId\n };\n // callback\n this.onExecute(event);\n }\n\n /**\n * Undo the command.\n *\n * @fires RunFilterCommand#filterundo\n */\n undo() {\n // reset the image\n this.#app.setImage(this.#dataId, this.#filter.getOriginalImage());\n // update display\n this.#app.render(this.#dataId);\n /**\n * Filter undo event.\n *\n * @event RunFilterCommand#filterundo\n * @type {object}\n * @property {string} type The event type: filterundo.\n * @property {number} id The id of the undone run command.\n */\n const event = {\n type: 'filterundo',\n id: this.getName(),\n dataid: this.#dataId\n }; // callback\n this.onUndo(event);\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // RunFilterCommand class\n","import {WindowLevel} from './windowLevel';\nimport {Scroll} from './scroll';\nimport {ZoomAndPan} from './zoomPan';\nimport {Opacity} from './opacity';\nimport {Draw} from './draw';\nimport {Floodfill} from './floodfill';\nimport {Livewire} from './livewire';\n\nimport {ArrowFactory} from './arrow';\nimport {CircleFactory} from './circle';\nimport {EllipseFactory} from './ellipse';\nimport {FreeHandFactory} from './freeHand';\nimport {ProtractorFactory} from './protractor';\nimport {RectangleFactory} from './rectangle';\nimport {RoiFactory} from './roi';\nimport {RulerFactory} from './ruler';\n\nimport {Filter, Threshold, Sobel, Sharpen} from './filter';\n\n/**\n * List of client provided tools to be added to\n * the default ones.\n *\n * @type {Object}\n */\nexport const toolList = {};\n\nexport const defaultToolList = {\n WindowLevel,\n Scroll,\n ZoomAndPan,\n Opacity,\n Draw,\n Filter,\n Floodfill,\n Livewire\n};\n\nexport const toolOptions = {\n draw: {\n ArrowFactory,\n CircleFactory,\n EllipseFactory,\n FreeHandFactory,\n ProtractorFactory,\n RectangleFactory,\n RoiFactory,\n RulerFactory\n },\n filter: {\n Threshold,\n Sobel,\n Sharpen\n }\n};","import {ScrollWheel} from './scrollWheel';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {\n validateWindowWidth,\n WindowLevel as WindowLevelValues\n} from '../image/windowLevel';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * WindowLevel tool: handle window/level related events.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {WindowLevel: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('WindowLevel');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class WindowLevel {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n */\n #start(point) {\n this.#started = true;\n this.#startPoint = point;\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n // check start flag\n if (!this.#started) {\n return;\n }\n\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n\n // difference to last position\n const diffX = point.getX() - this.#startPoint.getX();\n const diffY = this.#startPoint.getY() - point.getY();\n // data range\n const range = viewController.getImageRescaledDataRange();\n // 1/1000 seems to give reasonable results...\n const pixelToIntensity = (range.max - range.min) * 0.01;\n\n // calculate new window level\n const center = viewController.getWindowLevel().center;\n const width = viewController.getWindowLevel().width;\n const windowCenter = center + Math.round(diffY * pixelToIntensity);\n let windowWidth = width + Math.round(diffX * pixelToIntensity);\n // bound window width\n windowWidth = validateWindowWidth(windowWidth);\n // set\n const wl = new WindowLevelValues(windowCenter, windowWidth);\n viewController.setWindowLevel(wl);\n\n // store position\n this.#startPoint = point;\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n this.#start(mousePoint);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n this.#start(touchPoints[0]);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle double click event.\n *\n * @param {object} event The double click event.\n */\n dblclick = (event) => {\n const layerDetails = getLayerDetailsFromEvent(event);\n const mousePoint = getMousePoint(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const index = viewLayer.displayToPlaneIndex(mousePoint);\n const viewController = viewLayer.getViewController();\n const image = this.#app.getData(viewLayer.getDataId()).image;\n\n // update view controller\n const wl = new WindowLevelValues(\n image.getRescaledValueAtIndex(\n viewController.getCurrentIndex().getWithNew2D(\n index.get(0),\n index.get(1)\n )\n ),\n viewController.getWindowLevel().width\n );\n viewController.setWindowLevel(wl);\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel = (event) => {\n this.#scrollWhell.wheel(event);\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'WindowLevel';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Set the tool live features: does nothing.\n *\n * @param {object} _features The list of features.\n */\n setFeatures(_features) {\n // does nothing\n }\n\n} // WindowLevel class\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {ScrollWheel} from './scrollWheel';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Scroll class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {Scroll: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('Scroll');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323707.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323563.dcm'\n * ]);\n * @example Example with slider\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {Scroll: new dwv.ToolConfig()};\n * app.init(options);\n * // create range\n * const range = document.createElement('input');\n * range.type = 'range';\n * range.min = 0;\n * range.id = 'sliceRange';\n * document.body.appendChild(range);\n * // update app on slider change\n * range.oninput = function () {\n * const lg = app.getLayerGroupByDivId('layerGroup0');\n * const vc = lg.getActiveViewLayer().getViewController();\n * const index = vc.getCurrentIndex();\n * const values = index.getValues();\n * values[2] = this.value;\n * vc.setCurrentIndex(new dwv.Index(values));\n * }\n * // activate tool and update range max on load\n * app.addEventListener('load', function () {\n * app.setTool('Scroll');\n * const size = app.getData(0).image.getGeometry().getSize();\n * range.max = size.get(2) - 1;\n * });\n * // update slider on slice change (for ex via mouse wheel)\n * app.addEventListener('positionchange', function () {\n * const lg = app.getLayerGroupByDivId('layerGroup0');\n * const vc = lg.getActiveViewLayer().getViewController();\n * range.value = vc.getCurrentIndex().get(2);\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323707.dcm',\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323563.dcm'\n * ]);\n */\nexport class Scroll {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * Touch timer ID (created by setTimeout).\n *\n * @type {number}\n */\n #touchTimerID;\n\n /**\n * Option to show or not a value tooltip on mousemove.\n *\n * @type {boolean}\n */\n #displayTooltip = false;\n\n /**\n * Current layer group div id.\n *\n * @type {string}\n */\n #currentDivId;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #start(point, divId) {\n // optional tooltip\n this.#removeTooltipDiv();\n\n // stop viewer if playing\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n if (viewController.isPlaying()) {\n viewController.stop();\n }\n\n // start flag\n this.#started = true;\n this.#startPoint = point;\n\n // update controller position\n const planePos = viewLayer.displayToPlanePos(point);\n const position = viewController.getPositionFromPlanePoint(planePos);\n viewController.setCurrentPosition(position);\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n // optional tooltip\n if (this.#displayTooltip) {\n this.#showTooltip(point, divId);\n }\n return;\n }\n\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n let newPosition;\n\n // difference to last Y position\n const diffY = point.getY() - this.#startPoint.getY();\n const yMove = (Math.abs(diffY) > 15);\n // do not trigger for small moves\n if (yMove && layerGroup.canScroll()) {\n // update view controller\n if (diffY > 0) {\n newPosition = viewController.getDecrementScrollPosition();\n } else {\n newPosition = viewController.getIncrementScrollPosition();\n }\n }\n\n // difference to last X position\n const diffX = point.getX() - this.#startPoint.getX();\n const xMove = (Math.abs(diffX) > 15);\n // do not trigger for small moves\n if (xMove && layerGroup.moreThanOne(3)) {\n // update view controller\n if (diffX > 0) {\n newPosition = viewController.getIncrementPosition(3);\n } else {\n newPosition = viewController.getDecrementPosition(3);\n }\n }\n\n // set all layers if at least one can be set\n if (typeof newPosition !== 'undefined' &&\n layerGroup.isPositionInBounds(newPosition)) {\n viewController.setCurrentPosition(newPosition);\n }\n\n // reset origin point\n if (xMove || yMove) {\n this.#startPoint = point;\n }\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n // remove possible tooltip div\n this.#removeTooltipDiv();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n // long touch triggers the dblclick\n // @ts-ignore\n this.#touchTimerID = setTimeout(() => {\n this.dblclick(event);\n }, 500);\n // call start\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n // abort timer if move\n if (this.#touchTimerID !== null) {\n clearTimeout(this.#touchTimerID);\n this.#touchTimerID = null;\n }\n // call update\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n // abort timer\n if (this.#touchTimerID !== null) {\n clearTimeout(this.#touchTimerID);\n this.#touchTimerID = null;\n }\n // call mouse equivalent\n this.#finish();\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel = (event) => {\n this.#scrollWhell.wheel(event);\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Scroll';\n this.#app.onKeydown(event);\n };\n\n /**\n * Handle double click.\n *\n * @param {object} event The key down event.\n */\n dblclick = (event) => {\n const layerDetails = getLayerDetailsFromEvent(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n viewController.play();\n };\n\n /**\n * Display a tooltip at the given point.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #showTooltip(point, divId) {\n // get layer group\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n this.#currentDivId = divId;\n // show new tooltip\n layerGroup.showTooltip(point);\n }\n\n /**\n * Remove the last tooltip html div.\n */\n #removeTooltipDiv() {\n if (typeof this.#currentDivId !== 'undefined') {\n const layerGroup = this.#app.getLayerGroupByDivId(this.#currentDivId);\n layerGroup.removeTooltipDiv();\n this.#currentDivId = undefined;\n }\n }\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // remove tooltip html when deactivating\n if (!_bool) {\n this.#removeTooltipDiv();\n }\n }\n\n /**\n * Set the tool live features: disaply tooltip.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.displayTooltip !== 'undefined') {\n this.#displayTooltip = features.displayTooltip;\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n} // Scroll class\n","import {Point2D} from '../math/point';\nimport {Line} from '../math/line';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * ZoomAndPan class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {ZoomAndPan: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('ZoomAndPan');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class ZoomAndPan {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Move flag: true if mouse or touch move.\n *\n * @type {boolean}\n */\n #hasMoved;\n\n /**\n * Line between input points.\n *\n * @type {Line}\n */\n #pointsLine;\n\n /**\n * PointsLine midpoint.\n *\n * @type {Point2D}\n */\n #midPoint;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n */\n #start(point) {\n this.#started = true;\n this.#startPoint = point;\n this.#hasMoved = false;\n }\n\n /**\n * Two touch start.\n *\n * @param {Point2D[]} points The start points.\n */\n #twoTouchStart = (points) => {\n this.#started = true;\n this.#startPoint = points[0];\n this.#hasMoved = false;\n // points line\n this.#pointsLine = new Line(points[0], points[1]);\n this.#midPoint = this.#pointsLine.getMidpoint();\n };\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n this.#hasMoved = true;\n\n // calculate translation\n const tx = point.getX() - this.#startPoint.getX();\n const ty = point.getY() - this.#startPoint.getY();\n // apply translation\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planeOffset = viewLayer.displayToPlaneScale(\n new Point2D(tx, ty)\n );\n const offset3D = viewController.getOffset3DFromPlaneOffset({\n x: planeOffset.getX(),\n y: planeOffset.getY()\n });\n layerGroup.addTranslation({\n x: offset3D.getX(),\n y: offset3D.getY(),\n z: offset3D.getZ()\n });\n layerGroup.draw();\n // reset origin point\n this.#startPoint = point;\n }\n\n /**\n * Two touch update.\n *\n * @param {Point2D[]} points The update points.\n * @param {string} divId The layer group divId.\n */\n #twoTouchUpdate = (points, divId) => {\n if (!this.#started) {\n return;\n }\n this.#hasMoved = true;\n\n const newLine = new Line(points[0], points[1]);\n const lineRatio = newLine.getLength() / this.#pointsLine.getLength();\n\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n if (lineRatio === 1) {\n // scroll mode\n // difference to last position\n const diffY = points[0].getY() - this.#startPoint.getY();\n // do not trigger for small moves\n if (Math.abs(diffY) < 15) {\n return;\n }\n // update view controller\n if (layerGroup.canScroll()) {\n let newPosition;\n if (diffY > 0) {\n newPosition = viewController.getIncrementScrollPosition();\n } else {\n newPosition = viewController.getDecrementScrollPosition();\n }\n // set all layers if at least one can be set\n if (typeof newPosition !== 'undefined' &&\n layerGroup.isPositionInBounds(newPosition)) {\n viewController.setCurrentPosition(newPosition);\n }\n }\n } else {\n // zoom mode\n const zoom = (lineRatio - 1) / 10;\n if (Math.abs(zoom) % 0.1 <= 0.05 &&\n typeof this.#midPoint !== 'undefined') {\n const planePos = viewLayer.displayToMainPlanePos(this.#midPoint);\n const center = viewController.getPlanePositionFromPlanePoint(planePos);\n layerGroup.addScale(zoom, center);\n layerGroup.draw();\n }\n }\n };\n\n /**\n * Set the current position.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #setCurrentPosition(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planePos = viewLayer.displayToPlanePos(point);\n const position = viewController.getPositionFromPlanePoint(planePos);\n viewController.setCurrentPosition(position);\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n this.#start(mousePoint);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} event The mouse up event.\n */\n mouseup = (event) => {\n // update position if no move\n if (!this.#hasMoved) {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#setCurrentPosition(mousePoint, layerDetails.groupDivId);\n }\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n if (touchPoints.length === 1) {\n this.#start(touchPoints[0]);\n } else if (touchPoints.length === 2) {\n this.#twoTouchStart(touchPoints);\n }\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n if (touchPoints.length === 1) {\n this.#update(touchPoints[0], layerDetails.groupDivId);\n } else if (touchPoints.length === 2) {\n this.#twoTouchUpdate(touchPoints, layerDetails.groupDivId);\n }\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} event The touch end event.\n */\n touchend = (event) => {\n // update position if no move\n if (!this.#hasMoved) {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#setCurrentPosition(mousePoint, layerDetails.groupDivId);\n }\n this.#finish();\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {object} event The mouse wheel event.\n */\n wheel = (event) => {\n // prevent default page scroll\n event.preventDefault();\n\n const step = -event.deltaY / 500;\n\n const layerDetails = getLayerDetailsFromEvent(event);\n const mousePoint = getMousePoint(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n const planePos = viewLayer.displayToMainPlanePos(mousePoint);\n const center = viewController.getPlanePositionFromPlanePoint(planePos);\n layerGroup.addScale(step, center);\n layerGroup.draw();\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'ZoomAndPan';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Set the tool live features: does nothing.\n *\n * @param {object} _features The list of features.\n */\n setFeatures(_features) {\n // does nothing\n }\n\n} // ZoomAndPan class\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {ScrollWheel} from './scrollWheel';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Point2D} from '../math/point';\n/* eslint-enable no-unused-vars */\n\n/**\n * Opacity class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.tools = {Opacity: new dwv.ToolConfig()};\n * app.init(options);\n * // activate tool\n * app.addEventListener('load', function () {\n * app.setTool('Opacity');\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class Opacity {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n */\n #start(point) {\n this.#started = true;\n this.#startPoint = point;\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n\n // difference to last X position\n const diffX = point.getX() - this.#startPoint.getX();\n const xMove = (Math.abs(diffX) > 15);\n // do not trigger for small moves\n if (xMove) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const op = viewLayer.getOpacity();\n viewLayer.setOpacity(op + (diffX / 200));\n viewLayer.draw();\n\n // reset origin point\n this.#startPoint = point;\n }\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n this.#start(mousePoint);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n this.#start(touchPoints[0]);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {object} event The mouse wheel event.\n */\n wheel = (event) => {\n this.#scrollWhell.wheel(event);\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Opacity';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} _bool The flag to activate or not.\n */\n activate(_bool) {\n // does nothing\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Set the tool live features: does nothing.\n *\n * @param {object} _features The list of features.\n */\n setFeatures(_features) {\n // does nothing\n }\n\n} // Opacity class\n","import {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {DicomData} from '../app/dataController';\nimport {ViewConfig} from '../app/application';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {guid} from '../math/stats';\nimport {logger} from '../utils/logger';\nimport {\n AddAnnotationCommand,\n RemoveAnnotationCommand\n} from './drawCommands';\nimport {\n isNodeNameShape,\n} from './drawBounds';\nimport {Annotation, AnnotationGroup} from '../image/annotation';\nimport {ScrollWheel} from './scrollWheel';\n\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {Style} from '../gui/style';\nimport {LayerGroup} from '../gui/layerGroup';\nimport {Point2D} from '../math/point';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {DrawShapeHandler} from './drawShapeHandler';\n/* eslint-enable no-unused-vars */\n\n/**\n * Drawing tool.\n *\n * This tool is responsible for the draw of layer group structure.\n *\n * ```\n * drawLayer\n * |_ positionGroup: {name=\"position-group\", id=\"#2-0#_#3-1\"}\n * |_ shapeGroup: {name=\"{shape name}-group\", id=\"#\"}\n * |_ shape: {name=\"shape\"},\n * |_ label: {name=\"label\"},\n * |_ extra: line tick, protractor arc...\n * ```\n *\n * Discussion:\n * - posGroup > shapeGroup:\n * (pro) slice/frame display: 1 loop -\n * (cons) multi-slice shape splitted in positionGroups.\n * - shapeGroup > posGroup:\n * (pros) more logical -\n * (cons) slice/frame display: 2 loops.\n */\nexport class Draw {\n\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * Scroll wheel handler.\n *\n * @type {ScrollWheel}\n */\n #scrollWhell;\n\n /**\n * Drawing style.\n *\n * @type {Style}\n */\n #style;\n\n /**\n * Callback store to allow attach/detach.\n *\n * @type {Array}\n */\n #callbackStore = [];\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #isDrawing = false;\n\n /**\n * Shape factory list.\n *\n * @type {object}\n */\n #shapeFactoryList = null;\n\n /**\n * Current shape factory.\n *\n * @type {object}\n */\n #currentFactory = null;\n\n /**\n * Current shape group.\n *\n * @type {object}\n */\n #tmpShapeGroup = null;\n\n /**\n * Shape name.\n *\n * @type {string}\n */\n #shapeName;\n\n /**\n * List of points.\n *\n * @type {Point2D[]}\n */\n #points = [];\n\n /**\n * Last selected point.\n *\n * @type {Point2D}\n */\n #lastPoint = null;\n\n /**\n * With scroll flag.\n *\n * @type {boolean}\n */\n #withScroll = true;\n\n\n /**\n * Shape handler: activate listeners on existing shape.\n *\n * @type {DrawShapeHandler}\n */\n #shapeHandler;\n\n /**\n * Auto shape colour: will use defaults colours and\n * vary them according to the layer.\n *\n * @type {boolean}\n */\n #autoShapeColour = true;\n\n /**\n * Event listeners.\n */\n #listeners = {};\n\n /**\n * Flag to know if the last added point was made by mouse move.\n *\n * @type {boolean}\n */\n #lastIsMouseMovePoint = false;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n this.#scrollWhell = new ScrollWheel(app);\n this.#shapeHandler = new DrawShapeHandler(app, this.#fireEvent);\n\n this.#style = app.getStyle();\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #switchEditOrCreateShapeGroup(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n let drawLayer = layerGroup.getActiveDrawLayer();\n\n if (typeof drawLayer === 'undefined') {\n // create new data\n const viewLayer = layerGroup.getActiveViewLayer();\n const refData = this.#app.getData(viewLayer.getDataId());\n const refMeta = refData.image.getMeta();\n const data = new DicomData({});\n data.annotationGroup = new AnnotationGroup();\n data.annotationGroup.setMetaValue('Modality', 'SR');\n data.annotationGroup.setMetaValue(\n 'PatientID', refMeta.PatientID);\n data.annotationGroup.setMetaValue(\n 'StudyInstanceUID', refMeta.StudyInstanceUID);\n data.annotationGroup.setMetaValue(\n 'ReferencedSeriesSequence', {\n value: [{\n SeriesInstanceUID: refMeta.SeriesInstanceUID\n }]\n });\n const dataId = this.#app.addData(data);\n // render (will create draw layer)\n this.#app.addDataViewConfig(dataId, new ViewConfig(divId));\n this.#app.render(dataId);\n\n drawLayer = layerGroup.getActiveDrawLayer();\n // set active to bind to toolboxController\n layerGroup.setActiveDrawLayerByDataId(dataId);\n }\n\n // set the layer shape handler\n drawLayer.setShapeHandler(this.#shapeHandler);\n\n const stage = drawLayer.getKonvaStage();\n\n // determine if the click happened in an existing shape\n const kshape = stage.getIntersection({\n x: point.getX(),\n y: point.getY()\n });\n\n // update scale\n this.#style.setZoomScale(stage.scale());\n\n // If shape exists, let user to edit\n if (kshape) {\n this.#selectShapeGroup(drawLayer, kshape);\n return;\n }\n // Else, is a new shape creation\n this.#startShapeGroupCreation(layerGroup, point);\n }\n\n /**\n * Initializes the new shape creation:\n * - Updates the started variable,\n * - Gets the factory,\n * - Initializes the points array.\n *\n * @param {LayerGroup} layerGroup The layer group where the user clicks.\n * @param {Point2D} point The start point where the user clicks.\n */\n #startShapeGroupCreation(layerGroup, point) {\n // disable edition\n this.#shapeHandler.disableAndResetEditor();\n this.#setToDrawingState();\n // store point\n const viewLayer = layerGroup.getActiveViewLayer();\n this.#lastPoint = viewLayer.displayToPlanePos(point);\n this.#points.push(this.#lastPoint);\n }\n\n /**\n * Sets the variables to drawing state:\n * - Updates is drawing variable,\n * - Initializes the current factory,\n * - Resets points.\n */\n #setToDrawingState() {\n // start storing points\n this.#isDrawing = true;\n // set factory\n this.#currentFactory = new this.#shapeFactoryList[this.#shapeName]();\n // clear array\n this.#points = [];\n }\n\n /**\n * Resets the variables to not drawing state:\n * - Destroys tmp shape group,\n * - Updates is drawing variable,\n * - Resets points.\n */\n #setToNotDrawingState() {\n this.#isDrawing = false;\n this.#points = [];\n }\n\n /**\n * Selects a shape group.\n *\n * @param {DrawLayer} drawLayer The draw layer where to draw.\n * @param {Konva.Shape} kshape The shape that has been selected.\n */\n #selectShapeGroup(drawLayer, kshape) {\n const group = kshape.getParent();\n const selectedShape = group.find('.shape')[0];\n if (!(selectedShape instanceof Konva.Shape)) {\n return;\n }\n this.#shapeHandler.setEditorShape(selectedShape, drawLayer);\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #updateShapeGroupCreation(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const pos = viewLayer.displayToPlanePos(point);\n\n // draw line to current pos\n if (Math.abs(pos.getX() - this.#lastPoint.getX()) > 0 ||\n Math.abs(pos.getY() - this.#lastPoint.getY()) > 0) {\n // clear last mouse move point\n if (this.#lastIsMouseMovePoint) {\n this.#points.pop();\n }\n // current point\n this.#lastPoint = pos;\n // mark it as temporary\n this.#lastIsMouseMovePoint = true;\n // add it to the list\n this.#points.push(this.#lastPoint);\n // update points\n this.#onNewPoints(this.#points, layerGroup);\n }\n }\n\n /**\n * Finish tool interaction.\n *\n * @param {string} divId The layer group divId.\n */\n #finishShapeGroupCreation(divId) {\n // exit if no points\n if (this.#points.length === 0) {\n logger.warn('Draw mouseup but no points...');\n return;\n }\n\n // do we have all the needed points\n if (this.#points.length === this.#currentFactory.getNPoints()) {\n // store points\n const layerGroup =\n this.#app.getLayerGroupByDivId(divId);\n this.#onFinalPoints(this.#points, layerGroup);\n this.#setToNotDrawingState();\n }\n\n // reset mouse move point flag\n this.#lastIsMouseMovePoint = false;\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n // exit if not started draw\n if (this.#isDrawing) {\n return;\n }\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#switchEditOrCreateShapeGroup(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#updateShapeGroupCreation(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} event The mouse up event.\n */\n mouseup = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#finishShapeGroupCreation(layerDetails.groupDivId);\n };\n\n /**\n * Handle double click event: some tools use it to finish interaction.\n *\n * @param {object} event The double click event.\n */\n dblclick = (event) => {\n // only end by double click undefined NPoints\n if (typeof this.#currentFactory.getNPoints() !== 'undefined') {\n return;\n }\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n // exit if no points\n if (this.#points.length === 0) {\n logger.warn('Draw dblclick but no points...');\n return;\n }\n\n // store points\n const layerDetails = getLayerDetailsFromEvent(event);\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n this.#onFinalPoints(this.#points, layerGroup);\n this.#setToNotDrawingState();\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} event The mouse out event.\n */\n mouseout = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#finishShapeGroupCreation(layerDetails.groupDivId);\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n // exit if not started draw\n if (this.#isDrawing) {\n return;\n }\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#switchEditOrCreateShapeGroup(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n // exit if not started draw\n if (!this.#isDrawing) {\n return;\n }\n\n const layerDetails = getLayerDetailsFromEvent(event);\n const touchPoints = getTouchPoints(event);\n\n const layerGroup = this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const pos = viewLayer.displayToPlanePos(touchPoints[0]);\n\n if (Math.abs(pos.getX() - this.#lastPoint.getX()) > 0 ||\n Math.abs(pos.getY() - this.#lastPoint.getY()) > 0) {\n // clear last added point from the list (but not the first one)\n if (this.#points.length !== 1) {\n this.#points.pop();\n }\n // current point\n this.#lastPoint = pos;\n // add current one to the list\n this.#points.push(this.#lastPoint);\n // allow for anchor points\n if (this.#points.length < this.#currentFactory.getNPoints()) {\n clearTimeout(this.timer);\n this.timer = setTimeout(() => {\n this.#points.push(this.#lastPoint);\n }, this.#currentFactory.getTimeout());\n }\n // update points\n this.#onNewPoints(this.#points, layerGroup);\n }\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} event The touch end event.\n */\n touchend = (event) => {\n this.dblclick(event);\n };\n\n /**\n * Handle mouse wheel event.\n *\n * @param {WheelEvent} event The mouse wheel event.\n */\n wheel = (event) => {\n if (this.#withScroll) {\n this.#scrollWhell.wheel(event);\n }\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n // call app handler if we are not in the middle of a draw\n if (!this.#isDrawing) {\n event.context = 'Draw';\n this.#app.onKeydown(event);\n }\n\n // press delete or backspace key\n const annotation = this.#shapeHandler.getEditorAnnotation();\n if ((event.key === 'Delete' ||\n event.key === 'Backspace') &&\n typeof annotation !== 'undefined') {\n const layerGroup = this.#app.getActiveLayerGroup();\n const drawLayer = layerGroup.getActiveDrawLayer();\n const drawController = drawLayer.getDrawController();\n\n // create remove annotation command\n const command = new RemoveAnnotationCommand(annotation, drawController);\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command: triggers draw remove\n command.execute();\n\n // reset cursor\n this.#shapeHandler.onMouseOutShapeGroup();\n }\n\n // escape key: exit shape creation\n if (event.key === 'Escape' && this.#tmpShapeGroup !== null) {\n const konvaLayer = this.#tmpShapeGroup.getLayer();\n // reset temporary shape group\n this.#tmpShapeGroup.destroy();\n this.#tmpShapeGroup = null;\n // set state\n this.#setToNotDrawingState();\n // redraw\n konvaLayer.draw();\n }\n };\n\n /**\n * Update the current draw with new points.\n *\n * @param {Point2D[]} tmpPoints The array of new points.\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #onNewPoints(tmpPoints, layerGroup) {\n // remove temporary shape draw\n if (this.#tmpShapeGroup) {\n this.#tmpShapeGroup.destroy();\n this.#tmpShapeGroup = null;\n }\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n const konvaLayer = drawLayer.getKonvaLayer();\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n // auto mode: vary shape colour with layer id\n if (this.#autoShapeColour) {\n const colours = [\n '#ffff80', '#ff80ff', '#80ffff', '#80ff80', '8080ff', 'ff8080'\n ];\n // warning: depends on layer id nomenclature\n const viewLayerId = viewLayer.getId();\n const layerId = viewLayerId.substring(viewLayerId.length - 1);\n // expecting one draw layer per view layer\n const layerIndex = parseInt(layerId, 10) / 2;\n const colour = colours[layerIndex];\n if (typeof colour !== 'undefined') {\n this.#style.setLineColour(colour);\n }\n }\n\n // create tmp annotation\n const annotation = new Annotation();\n annotation.colour = this.#style.getLineColour();\n annotation.setViewController(viewController);\n // set annotation shape\n this.#currentFactory.setAnnotationMathShape(annotation, tmpPoints);\n // create shape group\n this.#tmpShapeGroup =\n this.#currentFactory.createShapeGroup(annotation, this.#style);\n\n // do not listen during creation\n const shape = this.#tmpShapeGroup.getChildren(isNodeNameShape)[0];\n shape.listening(false);\n konvaLayer.listening(false);\n // draw shape\n konvaLayer.add(this.#tmpShapeGroup);\n konvaLayer.draw();\n }\n\n /**\n * Create the final shape from a point list.\n *\n * @param {Point2D[]} finalPoints The array of points.\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #onFinalPoints(finalPoints, layerGroup) {\n // remove temporary shape draw\n // (has to be done before sending add event)\n if (this.#tmpShapeGroup) {\n this.#tmpShapeGroup.destroy();\n this.#tmpShapeGroup = null;\n }\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n const konvaLayer = drawLayer.getKonvaLayer();\n const drawController = drawLayer.getDrawController();\n const viewLayer = layerGroup.getActiveViewLayer();\n const viewController = viewLayer.getViewController();\n\n // create final annotation\n const annotation = new Annotation();\n annotation.colour = this.#style.getLineColour();\n annotation.id = guid();\n annotation.setViewController(viewController);\n // set annotation shape\n this.#currentFactory.setAnnotationMathShape(annotation, finalPoints);\n\n // create add annotation command\n const command = new AddAnnotationCommand(annotation, drawController);\n // add command to undo stack\n this.#app.addToUndoStack(command);\n // execute command: triggers draw creation\n command.execute();\n\n // re-activate layer\n konvaLayer.listening(true);\n }\n\n\n /**\n * Get a layerGroup position callback.\n *\n * TODO: check needo for store item removal.\n *\n * @param {LayerGroup} layerGroup The origin layer group.\n * @returns {Function} The layerGroup position callback.\n */\n #getPositionCallback(layerGroup) {\n const divId = layerGroup.getDivId();\n if (typeof this.#callbackStore[divId] === 'undefined') {\n this.#callbackStore[divId] = () => {\n this.#updateDrawLayer(layerGroup);\n };\n }\n return this.#callbackStore[divId];\n }\n\n /**\n * Activate the tool.\n *\n * @param {boolean} flag The flag to activate or not.\n */\n activate(flag) {\n // reset shape editor\n this.#shapeHandler.disableAndResetEditor();\n\n // get the current draw layer\n const layerGroup = this.#app.getActiveLayerGroup();\n if (typeof layerGroup === 'undefined') {\n throw new Error('No active layerGroup to activate draw on');\n }\n this.#activateCurrentPositionShapes(flag, layerGroup);\n // listen to app change to update the draw layer\n if (flag) {\n // TODO: merge with drawLayer.activateDrawLayer?\n this.#app.addEventListener('positionchange',\n this.#getPositionCallback(layerGroup)\n );\n } else {\n // reset layer shape handler\n const drawLayer = layerGroup.getActiveDrawLayer();\n if (typeof drawLayer !== 'undefined') {\n drawLayer.setShapeHandler(undefined);\n }\n\n // reset shape and cursor\n this.#shapeHandler.onMouseOutShapeGroup();\n // remove listeners\n this.#app.removeEventListener('positionchange',\n this.#getPositionCallback(layerGroup)\n );\n }\n }\n\n /**\n * Update the draw layer.\n *\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #updateDrawLayer(layerGroup) {\n // activate the shape at current position\n this.#activateCurrentPositionShapes(true, layerGroup);\n }\n\n /**\n * Activate shapes at current position.\n *\n * @param {boolean} visible Set the draw layer visible or not.\n * @param {LayerGroup} layerGroup The origin layer group.\n */\n #activateCurrentPositionShapes(visible, layerGroup) {\n const drawLayer = layerGroup.getActiveDrawLayer();\n if (typeof drawLayer === 'undefined') {\n return;\n }\n const drawController = drawLayer.getDrawController();\n\n // get shape groups at the current position\n const shapeGroups =\n drawLayer.getCurrentPosGroup().getChildren();\n\n // set shape display properties\n if (visible) {\n // activate shape listeners\n shapeGroups.forEach((group) => {\n if (group instanceof Konva.Group) {\n const annotation = drawController.getAnnotation(group.id());\n this.#shapeHandler.addShapeListeners(drawLayer, group, annotation);\n }\n });\n } else {\n // de-activate shape listeners\n shapeGroups.forEach((group) => {\n if (group instanceof Konva.Group) {\n this.#shapeHandler.removeShapeListeners(group);\n }\n });\n }\n\n const notCurrentPosGroup =\n drawLayer.getNonCurrentPosGroup();\n for (const posGroup of notCurrentPosGroup) {\n posGroup.getChildren().forEach((group) => {\n this.#shapeHandler.removeShapeListeners(group);\n });\n }\n\n // draw\n const konvaLayer = drawLayer.getKonvaLayer();\n if (shapeGroups.length !== 0) {\n konvaLayer.listening(true);\n }\n konvaLayer.draw();\n }\n\n /**\n * Set the tool configuration options.\n *\n * @param {object} options The list of shape names amd classes.\n */\n setOptions(options) {\n // save the options as the shape factory list\n this.#shapeFactoryList = options;\n }\n\n /**\n * Get the type of tool options: here 'factory' since the shape\n * list contains factories to create each possible shape.\n *\n * @returns {string} The type.\n */\n getOptionsType() {\n return 'factory';\n }\n\n /**\n * Set the tool live features: shape colour and shape name.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.autoShapeColour !== 'undefined') {\n this.#autoShapeColour = features.autoShapeColour;\n }\n if (typeof features.shapeColour !== 'undefined') {\n this.#style.setLineColour(features.shapeColour);\n this.#autoShapeColour = false;\n }\n if (typeof features.shapeName !== 'undefined') {\n // check if we have it\n if (!this.hasShape(features.shapeName)) {\n throw new Error('Unknown shape: \\'' + features.shapeName + '\\'');\n }\n this.#shapeName = features.shapeName;\n }\n if (typeof features.mouseOverCursor !== 'undefined') {\n this.#shapeHandler.storeMouseOverCursor(features.mouseOverCursor);\n }\n if (typeof features.withScroll !== 'undefined') {\n this.#withScroll = features.withScroll;\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {string[]} The list of event names.\n */\n getEventNames() {\n return [\n 'annotationupdate'\n ];\n }\n\n /**\n * Add an event listener on the app.\n *\n * @param {string} type The event type.\n * @param {Function} listener The function associated with the provided\n * event type.\n */\n addEventListener(type, listener) {\n if (typeof this.#listeners[type] === 'undefined') {\n this.#listeners[type] = [];\n }\n this.#listeners[type].push(listener);\n }\n\n /**\n * Remove an event listener from the app.\n *\n * @param {string} type The event type.\n * @param {Function} listener The function associated with the provided\n * event type.\n */\n removeEventListener(type, listener) {\n if (typeof this.#listeners[type] === 'undefined') {\n return;\n }\n for (let i = 0; i < this.#listeners[type].length; ++i) {\n if (this.#listeners[type][i] === listener) {\n this.#listeners[type].splice(i, 1);\n }\n }\n }\n\n // Private Methods -----------------------------------------------------------\n\n /**\n * Fire an event: call all associated listeners.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n if (typeof this.#listeners[event.type] === 'undefined') {\n return;\n }\n for (let i = 0; i < this.#listeners[event.type].length; ++i) {\n this.#listeners[event.type][i](event);\n }\n };\n\n /**\n * Check if the shape is in the shape list.\n *\n * @param {string} name The name of the shape.\n * @returns {boolean} True if there is a factory for the shape.\n */\n hasShape(name) {\n return typeof this.#shapeFactoryList[name] !== 'undefined';\n }\n\n} // Draw class\n","import {DrawGroupCommand} from '../tools/drawCommands';\nimport {RoiFactory} from '../tools/roi';\nimport {guid} from '../math/stats';\nimport {Point2D} from '../math/point';\nimport {Style} from '../gui/style';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {ListenerHandler} from '../utils/listen';\nimport {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\nimport {LayerGroup} from '../gui/layerGroup';\nimport {Scalar2D} from '../math/scalar';\n/* eslint-enable no-unused-vars */\n\n/**\n * The magic wand namespace.\n *\n * Ref: {@link https://github.com/Tamersoul/magic-wand-js}.\n *\n * @external MagicWand\n */\nimport MagicWand from 'magic-wand-tool';\n\n/**\n * Floodfill painting tool.\n */\nexport class Floodfill {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Original variables from external library. Used as in the lib example.\n *\n * @type {number}\n */\n #blurRadius = 5;\n /**\n * Original variables from external library. Used as in the lib example.\n *\n * @type {number}\n */\n #simplifyTolerant = 0;\n\n /**\n * Original variables from external library. Used as in the lib example.\n *\n * @type {number}\n */\n #simplifyCount = 2000;\n\n /**\n * Canvas info.\n *\n * @type {object}\n */\n #imageInfo = null;\n\n /**\n * Object created by MagicWand lib containing border points.\n *\n * @type {object}\n */\n #mask = null;\n\n /**\n * Threshold default tolerance of the tool border.\n *\n * @type {number}\n */\n #initialthreshold = 10;\n\n /**\n * Threshold tolerance of the tool border.\n *\n * @type {number}\n */\n #currentthreshold = null;\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n /**\n * Draw command.\n *\n * @type {object}\n */\n #command = null;\n\n /**\n * Current shape group.\n *\n * @type {object}\n */\n #shapeGroup = null;\n\n /**\n * Coordinates of the fist mousedown event.\n *\n * @type {object}\n */\n #initialpoint;\n\n /**\n * Floodfill border.\n *\n * @type {object}\n */\n #border = null;\n\n /**\n * List of parent points.\n *\n * @type {Array}\n */\n #parentPoints = [];\n\n /**\n * Assistant variable to paint border on all slices.\n *\n * @type {boolean}\n */\n #extender = false;\n\n /**\n * Timeout for painting on mousemove.\n *\n */\n #painterTimeout;\n\n /**\n * Drawing style.\n *\n * @type {Style}\n */\n #style = new Style();\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Set extend option for painting border on all slices.\n *\n * @param {boolean} bool The option to set.\n */\n setExtend(bool) {\n this.#extender = bool;\n }\n\n /**\n * Get extend option for painting border on all slices.\n *\n * @returns {boolean} The actual value of of the variable to use Floodfill\n * on museup.\n */\n getExtend() {\n return this.#extender;\n }\n\n /**\n * Get (x, y) coordinates referenced to the canvas.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n * @returns {Scalar2D} The coordinates as a {x,y}.\n */\n #getIndex = (point, divId) => {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const index = viewLayer.displayToPlaneIndex(point);\n return {\n x: index.get(0),\n y: index.get(1)\n };\n };\n\n /**\n * Calculate border.\n *\n * @param {object} points The input points.\n * @param {number} threshold The threshold of the floodfill.\n * @param {boolean} simple Return first points or a list.\n * @returns {Array} The parent points.\n */\n #calcBorder(points, threshold, simple) {\n\n this.#parentPoints = [];\n const image = {\n data: this.#imageInfo.data,\n width: this.#imageInfo.width,\n height: this.#imageInfo.height,\n bytes: 4\n };\n\n this.#mask = MagicWand.floodFill(image, points.x, points.y, threshold);\n this.#mask = MagicWand.gaussBlurOnlyBorder(this.#mask, this.#blurRadius);\n\n let cs = MagicWand.traceContours(this.#mask);\n cs = MagicWand.simplifyContours(\n cs, this.#simplifyTolerant, this.#simplifyCount);\n\n if (cs.length > 0 && cs[0].points[0].x) {\n if (simple) {\n return cs[0].points;\n }\n for (let j = 0, icsl = cs[0].points.length; j < icsl; j++) {\n this.#parentPoints.push(new Point2D(\n cs[0].points[j].x,\n cs[0].points[j].y\n ));\n }\n return this.#parentPoints;\n } else {\n return [];\n }\n }\n\n /**\n * Paint Floodfill.\n *\n * @param {object} point The start point.\n * @param {number} threshold The border threshold.\n * @param {LayerGroup} layerGroup The origin layer group.\n * @returns {boolean} False if no border.\n */\n #paintBorder(point, threshold, layerGroup) {\n // Calculate the border\n this.#border = this.#calcBorder(point, threshold, false);\n // Paint the border\n if (this.#border) {\n const factory = new RoiFactory();\n this.#shapeGroup = factory.create(this.#border, this.#style);\n this.#shapeGroup.id(guid());\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n\n // get the position group\n const posGroup = drawLayer.getCurrentPosGroup();\n // add shape group to position group\n posGroup.add(this.#shapeGroup);\n\n // draw shape command\n this.#command = new DrawGroupCommand(\n this.#shapeGroup,\n 'floodfill',\n drawLayer\n );\n this.#command.onExecute = this.#fireEvent;\n this.#command.onUndo = this.#fireEvent;\n // // draw\n this.#command.execute();\n // save it in undo stack\n this.#app.addToUndoStack(this.#command);\n\n return true;\n } else {\n return false;\n }\n }\n\n /**\n * Create Floodfill in all the prev and next slices while border is found.\n *\n * @param {number} ini The first slice to extend to.\n * @param {number} end The last slice to extend to.\n * @param {object} layerGroup The origin layer group.\n */\n extend(ini, end, layerGroup) {\n //avoid errors\n if (!this.#initialpoint) {\n throw '\\'initialpoint\\' not found. User must click before use extend!';\n }\n // remove previous draw\n if (this.#shapeGroup) {\n this.#shapeGroup.destroy();\n }\n\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n\n const pos = viewController.getCurrentIndex();\n const imageSize = viewController.getImageSize();\n const threshold = this.#currentthreshold || this.#initialthreshold;\n\n // Iterate over the next images and paint border on each slice.\n for (let i = pos.get(2),\n len = end\n ? end : imageSize.get(2);\n i < len; i++) {\n if (!this.#paintBorder(this.#initialpoint, threshold, layerGroup)) {\n break;\n }\n viewController.incrementIndex(2);\n }\n viewController.setCurrentPosition(pos);\n\n // Iterate over the prev images and paint border on each slice.\n for (let j = pos.get(2), jl = ini ? ini : 0; j > jl; j--) {\n if (!this.#paintBorder(this.#initialpoint, threshold, layerGroup)) {\n break;\n }\n viewController.decrementIndex(2);\n }\n viewController.setCurrentPosition(pos);\n }\n\n /**\n * Modify tolerance threshold and redraw ROI.\n *\n * @param {number} modifyThreshold The new threshold.\n * @param {object} shape The shape to update.\n */\n modifyThreshold(modifyThreshold, shape) {\n\n if (!shape && this.#shapeGroup) {\n shape = this.#shapeGroup.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n } else {\n throw 'No shape found';\n }\n\n clearTimeout(this.#painterTimeout);\n this.#painterTimeout = setTimeout(() => {\n this.#border = this.#calcBorder(\n this.#initialpoint, modifyThreshold, true);\n if (!this.#border) {\n return false;\n }\n const arr = [];\n for (let i = 0, bl = this.#border.length; i < bl; ++i) {\n arr.push(this.#border[i].x);\n arr.push(this.#border[i].y);\n }\n shape.setPoints(arr);\n const shapeLayer = shape.getLayer();\n shapeLayer.draw();\n this.onThresholdChange(modifyThreshold);\n }, 100);\n }\n\n /**\n * Event fired when threshold change.\n *\n * @param {number} _value Current threshold.\n */\n onThresholdChange(_value) {\n // Defaults do nothing\n }\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #start(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const drawLayer = layerGroup.getActiveDrawLayer();\n\n this.#imageInfo = viewLayer.getImageData();\n if (!this.#imageInfo) {\n logger.error('No image found');\n return;\n }\n\n // update zoom scale\n this.#style.setZoomScale(\n drawLayer.getKonvaLayer().getAbsoluteScale());\n\n this.#started = true;\n this.#initialpoint = this.#getIndex(point, divId);\n this.#paintBorder(this.#initialpoint, this.#initialthreshold, layerGroup);\n this.onThresholdChange(this.#initialthreshold);\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n\n const movedpoint = this.#getIndex(point, divId);\n this.#currentthreshold = Math.round(Math.sqrt(\n Math.pow((this.#initialpoint.x - movedpoint.x), 2) +\n Math.pow((this.#initialpoint.y - movedpoint.y), 2)) / 2);\n this.#currentthreshold = this.#currentthreshold < this.#initialthreshold\n ? this.#initialthreshold\n : this.#currentthreshold - this.#initialthreshold;\n this.modifyThreshold(this.#currentthreshold);\n }\n\n /**\n * Finish tool interaction.\n */\n #finish() {\n if (this.#started) {\n this.#started = false;\n }\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup = (_event) => {\n this.#finish();\n // TODO: re-activate\n // if (this.#extender) {\n // const layerDetails = getLayerDetailsFromEvent(event);\n // const layerGroup =\n // this.#app.getLayerGroupByDivId(layerDetails.groupDivId);\n // this.extend(layerGroup);\n // }\n };\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n this.#finish();\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Floodfill';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} bool The flag to activate or not.\n */\n activate(bool) {\n if (bool) {\n // init with the app window scale\n this.#style.setBaseScale(this.#app.getBaseScale());\n // set the default to the first in the list\n this.setFeatures({shapeColour: this.#style.getLineColour()});\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {Array} The list of event names.\n */\n getEventNames() {\n return ['drawcreate', 'drawchange', 'drawmove', 'drawdelete'];\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Set the tool live features: shape colour.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.shapeColour !== 'undefined') {\n this.#style.setLineColour(features.shapeColour);\n }\n }\n\n} // Floodfill class\n","import {Style} from '../gui/style';\nimport {\n getMousePoint,\n getTouchPoints\n} from '../gui/generic';\nimport {Point2D} from '../math/point';\nimport {Path} from '../math/path';\nimport {Scissors} from '../math/scissors';\nimport {guid} from '../math/stats';\nimport {getLayerDetailsFromEvent} from '../gui/layerGroup';\nimport {ListenerHandler} from '../utils/listen';\nimport {RoiFactory} from '../tools/roi';\nimport {DrawGroupCommand} from '../tools/drawCommands';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {App} from '../app/application';\n/* eslint-enable no-unused-vars */\n\n/**\n * Livewire painting tool.\n */\nexport class Livewire {\n /**\n * Associated app.\n *\n * @type {App}\n */\n #app;\n\n /**\n * @param {App} app The associated application.\n */\n constructor(app) {\n this.#app = app;\n }\n\n /**\n * Interaction start flag.\n *\n * @type {boolean}\n */\n #started = false;\n\n /**\n * Start point.\n *\n * @type {Point2D}\n */\n #startPoint;\n\n /**\n * Draw command.\n *\n * @type {object}\n */\n #command = null;\n\n /**\n * Current shape group.\n *\n * @type {object}\n */\n #shapeGroup = null;\n\n /**\n * Drawing style.\n *\n * @type {Style}\n */\n #style = new Style();\n\n /**\n * Path storage. Paths are stored in reverse order.\n *\n * @type {Path}\n */\n #path = new Path();\n\n /**\n * Current path storage. Paths are stored in reverse order.\n *\n * @type {Path}\n */\n #currentPath = new Path();\n\n /**\n * List of parent points.\n *\n * @type {Array}\n */\n #parentPoints = [];\n\n /**\n * Tolerance.\n *\n * @type {number}\n */\n #tolerance = 5;\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Clear the parent points list.\n *\n * @param {object} imageSize The image size.\n */\n #clearParentPoints(imageSize) {\n const nrows = imageSize.get(1);\n for (let i = 0; i < nrows; ++i) {\n this.#parentPoints[i] = [];\n }\n }\n\n /**\n * Clear the stored paths.\n */\n #clearPaths() {\n this.#path = new Path();\n this.#currentPath = new Path();\n }\n\n /**\n * Scissor representation.\n *\n * @type {Scissors}\n */\n #scissors = new Scissors();\n\n /**\n * Start tool interaction.\n *\n * @param {Point2D} point The start point.\n * @param {string} divId The layer group divId.\n */\n #start(point, divId) {\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const imageSize = viewLayer.getViewController().getImageSize();\n const index = viewLayer.displayToPlaneIndex(point);\n\n // first time\n if (!this.#started) {\n this.#started = true;\n this.#startPoint = new Point2D(index.get(0), index.get(1));\n // clear vars\n this.#clearPaths();\n this.#clearParentPoints(imageSize);\n this.#shapeGroup = null;\n // update zoom scale\n const drawLayer = layerGroup.getActiveDrawLayer();\n this.#style.setZoomScale(\n drawLayer.getKonvaLayer().getAbsoluteScale());\n // do the training from the first point\n const p = {x: index.get(0), y: index.get(1)};\n this.#scissors.doTraining(p);\n // add the initial point to the path\n const p0 = new Point2D(index.get(0), index.get(1));\n this.#path.addPoint(p0);\n this.#path.addControlPoint(p0);\n } else {\n const diffX = Math.abs(index.get(0) - this.#startPoint.getX());\n const diffY = Math.abs(index.get(1) - this.#startPoint.getY());\n // final point: at 'tolerance' of the initial point\n if (diffX < this.#tolerance &&\n diffY < this.#tolerance) {\n // finish\n this.#finishShape();\n } else {\n // anchor point\n this.#path = this.#currentPath;\n this.#clearParentPoints(imageSize);\n const pn = {x: index.get(0), y: index.get(1)};\n this.#scissors.doTraining(pn);\n this.#path.addControlPoint(this.#currentPath.getPoint(0));\n }\n }\n }\n\n /**\n * Update tool interaction.\n *\n * @param {Point2D} point The update point.\n * @param {string} divId The layer group divId.\n */\n #update(point, divId) {\n if (!this.#started) {\n return;\n }\n const layerGroup = this.#app.getLayerGroupByDivId(divId);\n const viewLayer = layerGroup.getActiveViewLayer();\n const index = viewLayer.displayToPlaneIndex(point);\n\n // set the point to find the path to\n let p = {x: index.get(0), y: index.get(1)};\n this.#scissors.setPoint(p);\n // do the work\n let results = [];\n let stop = false;\n while (!this.#parentPoints[p.y][p.x] && !stop) {\n results = this.#scissors.doWork();\n\n if (results.length === 0) {\n stop = true;\n } else {\n // fill parents\n for (let i = 0; i < results.length - 1; i += 2) {\n const _p = results[i];\n const _q = results[i + 1];\n this.#parentPoints[_p.y][_p.x] = _q;\n }\n }\n }\n\n // get the path\n this.#currentPath = new Path();\n stop = false;\n while (p && !stop) {\n this.#currentPath.addPoint(new Point2D(p.x, p.y));\n if (!this.#parentPoints[p.y]) {\n stop = true;\n } else {\n if (!this.#parentPoints[p.y][p.x]) {\n stop = true;\n } else {\n p = this.#parentPoints[p.y][p.x];\n }\n }\n }\n this.#currentPath.appenPath(this.#path);\n\n // remove previous draw\n if (this.#shapeGroup) {\n this.#shapeGroup.destroy();\n }\n // create shape\n const factory = new RoiFactory();\n this.#shapeGroup = factory.create(\n this.#currentPath.pointArray, this.#style);\n this.#shapeGroup.id(guid());\n\n const drawLayer = layerGroup.getActiveDrawLayer();\n\n // get the position group\n const posGroup = drawLayer.getCurrentPosGroup();\n // add shape group to position group\n posGroup.add(this.#shapeGroup);\n\n // draw shape command\n this.#command = new DrawGroupCommand(\n this.#shapeGroup,\n 'livewire',\n drawLayer\n );\n // draw\n this.#command.execute();\n }\n\n /**\n * Finish a livewire (roi) shape.\n */\n #finishShape() {\n // fire creation event (was not propagated during draw)\n this.#fireEvent({\n type: 'drawcreate',\n id: this.#shapeGroup.id()\n });\n // listen\n this.#command.onExecute = this.#fireEvent;\n this.#command.onUndo = this.#fireEvent;\n // save command in undo stack\n this.#app.addToUndoStack(this.#command);\n // set flag\n this.#started = false;\n }\n\n /**\n * Handle mouse down event.\n *\n * @param {object} event The mouse down event.\n */\n mousedown = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse move event.\n *\n * @param {object} event The mouse move event.\n */\n mousemove = (event) => {\n const mousePoint = getMousePoint(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(mousePoint, layerDetails.groupDivId);\n };\n\n /**\n * Handle mouse up event.\n *\n * @param {object} _event The mouse up event.\n */\n mouseup(_event) {\n // nothing to do\n }\n\n /**\n * Handle mouse out event.\n *\n * @param {object} _event The mouse out event.\n */\n mouseout = (_event) => {\n // nothing to do\n };\n\n /**\n * Handle double click event.\n *\n * @param {object} _event The double click event.\n */\n dblclick = (_event) => {\n this.#finishShape();\n };\n\n /**\n * Handle touch start event.\n *\n * @param {object} event The touch start event.\n */\n touchstart = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#start(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch move event.\n *\n * @param {object} event The touch move event.\n */\n touchmove = (event) => {\n const touchPoints = getTouchPoints(event);\n const layerDetails = getLayerDetailsFromEvent(event);\n this.#update(touchPoints[0], layerDetails.groupDivId);\n };\n\n /**\n * Handle touch end event.\n *\n * @param {object} _event The touch end event.\n */\n touchend = (_event) => {\n // nothing to do\n };\n\n /**\n * Handle key down event.\n *\n * @param {object} event The key down event.\n */\n keydown = (event) => {\n event.context = 'Livewire';\n this.#app.onKeydown(event);\n };\n\n /**\n * Activate the tool.\n *\n * @param {boolean} bool The flag to activate or not.\n */\n activate(bool) {\n // start scissors if displayed\n if (bool) {\n const layerGroup = this.#app.getActiveLayerGroup();\n const viewLayer = layerGroup.getActiveViewLayer();\n\n //scissors = new Scissors();\n const imageSize = viewLayer.getViewController().getImageSize();\n this.#scissors.setDimensions(\n imageSize.get(0),\n imageSize.get(1));\n this.#scissors.setData(viewLayer.getImageData().data);\n\n // init with the app window scale\n this.#style.setBaseScale(this.#app.getBaseScale());\n // set the default to the first in the list\n this.setFeatures({shapeColour: this.#style.getLineColour()});\n }\n }\n\n /**\n * Initialise the tool.\n */\n init() {\n // does nothing\n }\n\n /**\n * Get the list of event names that this tool can fire.\n *\n * @returns {Array} The list of event names.\n */\n getEventNames() {\n return ['drawcreate', 'drawchange', 'drawmove', 'drawdelete'];\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Set the tool live features: shape colour.\n *\n * @param {object} features The list of features.\n */\n setFeatures(features) {\n if (typeof features.shapeColour !== 'undefined') {\n this.#style.setLineColour(features.shapeColour);\n }\n }\n\n} // Livewire class\n","import {Point2D} from '../math/point';\nimport {Line, getPerpendicularLine, getAngle} from '../math/line';\nimport {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Arrow factory.\n */\nexport class ArrowFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'line-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 2;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 0;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create an arrow shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const line = new Line(points[0], points[1]);\n // draw shape\n const kshape = new Konva.Line({\n points: [line.getBegin().getX(),\n line.getBegin().getY(),\n line.getEnd().getX(),\n line.getEnd().getY()],\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n // larger hitfunc\n const tickLen = style.applyZoomScale(10).x;\n const linePerp0 = getPerpendicularLine(line, points[0], tickLen);\n const linePerp1 = getPerpendicularLine(line, points[1], tickLen);\n kshape.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kshape);\n });\n // triangle\n const beginTy = new Point2D(\n line.getBegin().getX(),\n line.getBegin().getY() - 10);\n const verticalLine = new Line(line.getBegin(), beginTy);\n const angle = getAngle(line, verticalLine);\n const angleRad = angle * Math.PI / 180;\n const radius = Math.abs(style.applyZoomScale(8).x);\n const kpoly = new Konva.RegularPolygon({\n x: line.getBegin().getX() + radius * Math.sin(angleRad),\n y: line.getBegin().getY() + radius * Math.cos(angleRad),\n sides: 3,\n radius: radius,\n rotation: -angle,\n fill: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape-triangle'\n });\n // quantification\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.arrow[modality] !== 'undefined') {\n textExpr = defaults.labelText.arrow[modality];\n } else {\n textExpr = defaults.labelText.arrow['*'];\n }\n ktext.setText(textExpr);\n // augment text with meta data\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: {}\n };\n // label\n const dX = line.getBegin().getX() > line.getEnd().getX() ? 0 : -1;\n const dY = line.getBegin().getY() > line.getEnd().getY() ? -1 : 0;\n const klabel = new Konva.Label({\n x: line.getEnd().getX() + dX * ktext.width(),\n y: line.getEnd().getY() + dY * style.applyZoomScale(15).y,\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(kpoly);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update an arrow shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n points[0] + shape.x(), points[1] + shape.y(), 'begin', style\n ));\n anchors.push(getDefaultAnchor(\n points[2] + shape.x(), points[3] + shape.y(), 'end', style\n ));\n return anchors;\n }\n\n /**\n * Update an arrow shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated triangle shape\n const ktriangle = group.getChildren(function (node) {\n return node.name() === 'shape-triangle';\n })[0];\n if (!(ktriangle instanceof Konva.RegularPolygon)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // find special points\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n // update special points\n switch (anchor.id()) {\n case 'begin':\n begin.x(anchor.x());\n begin.y(anchor.y());\n break;\n case 'end':\n end.x(anchor.x());\n end.y(anchor.y());\n break;\n }\n // update shape and compensate for possible drag\n // note: shape.position() and shape.size() won't work...\n const bx = begin.x() - kline.x();\n const by = begin.y() - kline.y();\n const ex = end.x() - kline.x();\n const ey = end.y() - kline.y();\n kline.points([bx, by, ex, ey]);\n // new line\n const p2d0 = new Point2D(begin.x(), begin.y());\n const p2d1 = new Point2D(end.x(), end.y());\n const line = new Line(p2d0, p2d1);\n // larger hitfunc\n const p2b = new Point2D(bx, by);\n const p2e = new Point2D(ex, ey);\n const tickLen = style.applyZoomScale(10).x;\n const linePerp0 = getPerpendicularLine(line, p2b, tickLen);\n const linePerp1 = getPerpendicularLine(line, p2e, tickLen);\n kline.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(linePerp0.getBegin().getX(), linePerp0.getBegin().getY());\n context.lineTo(linePerp0.getEnd().getX(), linePerp0.getEnd().getY());\n context.lineTo(linePerp1.getEnd().getX(), linePerp1.getEnd().getY());\n context.lineTo(linePerp1.getBegin().getX(), linePerp1.getBegin().getY());\n context.closePath();\n context.fillStrokeShape(kline);\n });\n // udate triangle\n const beginTy = new Point2D(\n line.getBegin().getX(),\n line.getBegin().getY() - 10);\n const verticalLine = new Line(line.getBegin(), beginTy);\n const angle = getAngle(line, verticalLine);\n const angleRad = angle * Math.PI / 180;\n ktriangle.x(\n line.getBegin().getX() + ktriangle.radius() * Math.sin(angleRad));\n ktriangle.y(\n line.getBegin().getY() + ktriangle.radius() * Math.cos(angleRad));\n ktriangle.rotation(-angle);\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n ktext.setText(ktext.meta.textExpr);\n // update position\n const dX = line.getBegin().getX() > line.getEnd().getX() ? 0 : -1;\n const dY = line.getBegin().getY() > line.getEnd().getY() ? -1 : 0;\n const textPos = {\n x: line.getEnd().getX() + dX * ktext.width(),\n y: line.getEnd().getY() + dY * style.applyZoomScale(15).y\n };\n klabel.position(textPos);\n }\n\n} // class ArrowFactory\n","import {defaults} from '../app/defaults';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Point2D} from '../math/point';\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * FreeHand factory.\n */\nexport class FreeHandFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'freeHand-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number|undefined} The number of points.\n */\n getNPoints() {\n // undefined to end with double click\n return undefined;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 25;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a roi shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the line.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // points stored the Konvajs way\n const arr = [];\n for (let i = 0; i < points.length; ++i) {\n arr.push(points[i].getX());\n arr.push(points[i].getY());\n }\n // draw shape\n const kshape = new Konva.Line({\n points: arr,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape',\n tension: 0.5\n });\n\n // text\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.freeHand[modality] !== 'undefined') {\n textExpr = defaults.labelText.freeHand[modality];\n } else {\n textExpr = defaults.labelText.freeHand['*'];\n }\n ktext.setText(textExpr);\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: {}\n };\n\n // label\n const klabel = new Konva.Label({\n x: points[0].getX(),\n y: points[0].getY() + style.scale(10),\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // return group\n const group = new Konva.Group();\n group.name(this.getGroupName());\n group.add(klabel);\n group.add(kshape);\n group.visible(true); // dont inherit\n return group;\n }\n\n /**\n * Get anchors to update a free hand shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Konva.Ellipse[]} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n for (let i = 0; i < points.length; i = i + 2) {\n const px = points[i] + shape.x();\n const py = points[i + 1] + shape.y();\n const name = i.toString();\n anchors.push(getDefaultAnchor(\n px, py, name, style\n ));\n }\n return anchors;\n }\n\n /**\n * Update a FreeHand shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n\n // update self\n const point = group.getChildren(function (node) {\n return node.id() === anchor.id();\n })[0];\n point.x(anchor.x());\n point.y(anchor.y());\n // update the roi point and compensate for possible drag\n // (the anchor id is the index of the point in the list)\n const points = kline.points();\n const index = parseInt(anchor.id(), 10);\n points[index] = anchor.x() - kline.x();\n points[index + 1] = anchor.y() - kline.y();\n // concat to make Konva think it is a new array\n kline.points(points.concat());\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n ktext.setText(meta.textExpr);\n // update position\n const textPos = {\n x: points[0] + kline.x(),\n y: points[1] + kline.y() + style.scale(10)\n };\n klabel.position(textPos);\n }\n\n} // class FreeHandFactory\n","import {Line, getAngle} from '../math/line';\nimport {Point2D} from '../math/point';\nimport {replaceFlags} from '../utils/string';\nimport {defaults} from '../app/defaults';\nimport {i18n} from '../utils/i18n';\nimport {getDefaultAnchor} from './drawBounds';\n// external\nimport Konva from 'konva';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {ViewController} from '../app/viewController';\nimport {Style} from '../gui/style';\n/* eslint-enable no-unused-vars */\n\n/**\n * Protractor factory.\n */\nexport class ProtractorFactory {\n /**\n * Get the name of the shape group.\n *\n * @returns {string} The name.\n */\n getGroupName() {\n return 'protractor-group';\n }\n\n /**\n * Get the number of points needed to build the shape.\n *\n * @returns {number} The number of points.\n */\n getNPoints() {\n return 3;\n }\n\n /**\n * Get the timeout between point storage.\n *\n * @returns {number} The timeout in milliseconds.\n */\n getTimeout() {\n return 500;\n }\n\n /**\n * Is the input group a group of this factory?\n *\n * @param {Konva.Group} group The group to test.\n * @returns {boolean} True if the group is from this fcatory.\n */\n isFactoryGroup(group) {\n return this.getGroupName() === group.name();\n }\n\n /**\n * Create a protractor shape to be displayed.\n *\n * @param {Point2D[]} points The points from which to extract the protractor.\n * @param {Style} style The drawing style.\n * @param {ViewController} viewController The associated view controller.\n * @returns {Konva.Group} The Konva group.\n */\n create(points, style, viewController) {\n // physical shape\n const line0 = new Line(points[0], points[1]);\n // points stored the Konvajs way\n const pointsArray = [];\n for (let i = 0; i < points.length; ++i) {\n pointsArray.push(points[i].getX());\n pointsArray.push(points[i].getY());\n }\n // draw shape\n const kshape = new Konva.Line({\n points: pointsArray,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n name: 'shape'\n });\n const group = new Konva.Group();\n group.name(this.getGroupName());\n // text and decoration\n if (points.length === 3) {\n const line1 = new Line(points[1], points[2]);\n // larger hitfunc\n kshape.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(points[0].getX(), points[0].getY());\n context.lineTo(points[1].getX(), points[1].getY());\n context.lineTo(points[2].getX(), points[2].getY());\n context.closePath();\n context.fillStrokeShape(kshape);\n });\n // quantification\n let angle = getAngle(line0, line1);\n let inclination = line0.getInclination();\n if (angle > 180) {\n angle = 360 - angle;\n inclination += angle;\n }\n\n // quantification\n const ktext = new Konva.Text({\n fontSize: style.getFontSize(),\n fontFamily: style.getFontFamily(),\n fill: style.getLineColour(),\n padding: style.getTextPadding(),\n shadowColor: style.getShadowLineColour(),\n shadowOffset: style.getShadowOffset(),\n name: 'text'\n });\n let textExpr = '';\n const modality = viewController.getModality();\n if (typeof defaults.labelText.protractor[modality] !== 'undefined') {\n textExpr = defaults.labelText.protractor[modality];\n } else {\n textExpr = defaults.labelText.protractor['*'];\n }\n const quant = {\n angle: {\n value: angle,\n unit: i18n.t('unit.degree')\n }\n };\n ktext.setText(replaceFlags(textExpr, quant));\n // augment text with meta\n // @ts-ignore\n ktext.meta = {\n textExpr: textExpr,\n quantification: quant\n };\n\n // label\n const midX =\n (line0.getMidpoint().getX() + line1.getMidpoint().getX()) / 2;\n const midY =\n (line0.getMidpoint().getY() + line1.getMidpoint().getY()) / 2;\n const klabel = new Konva.Label({\n x: midX,\n y: midY - style.applyZoomScale(15).y,\n scale: style.applyZoomScale(1),\n visible: textExpr.length !== 0,\n name: 'label'\n });\n klabel.add(ktext);\n klabel.add(new Konva.Tag({\n fill: style.getLineColour(),\n opacity: style.getTagOpacity()\n }));\n\n // arc\n const radius = Math.min(line0.getLength(), line1.getLength()) * 33 / 100;\n const karc = new Konva.Arc({\n innerRadius: radius,\n outerRadius: radius,\n stroke: style.getLineColour(),\n strokeWidth: style.getStrokeWidth(),\n strokeScaleEnabled: false,\n angle: angle,\n rotation: -inclination,\n x: points[1].getX(),\n y: points[1].getY(),\n name: 'shape-arc'\n });\n // add to group\n group.add(klabel);\n group.add(karc);\n }\n // add shape to group\n group.add(kshape);\n group.visible(true); // dont inherit\n // return group\n return group;\n }\n\n /**\n * Get anchors to update a protractor shape.\n *\n * @param {Konva.Line} shape The associated shape.\n * @param {Style} style The application style.\n * @returns {Array} A list of anchors.\n */\n getAnchors(shape, style) {\n const points = shape.points();\n\n const anchors = [];\n anchors.push(getDefaultAnchor(\n points[0] + shape.x(), points[1] + shape.y(), 'begin', style\n ));\n anchors.push(getDefaultAnchor(\n points[2] + shape.x(), points[3] + shape.y(), 'mid', style\n ));\n anchors.push(getDefaultAnchor(\n points[4] + shape.x(), points[5] + shape.y(), 'end', style\n ));\n return anchors;\n }\n\n /**\n * Update a protractor shape.\n *\n * @param {Konva.Ellipse} anchor The active anchor.\n * @param {Style} style The app style.\n * @param {ViewController} _viewController The associated view controller.\n */\n update(anchor, style, _viewController) {\n // parent group\n const group = anchor.getParent();\n // associated shape\n const kline = group.getChildren(function (node) {\n return node.name() === 'shape';\n })[0];\n if (!(kline instanceof Konva.Line)) {\n return;\n }\n // associated label\n const klabel = group.getChildren(function (node) {\n return node.name() === 'label';\n })[0];\n if (!(klabel instanceof Konva.Label)) {\n return;\n }\n // associated arc\n const karc = group.getChildren(function (node) {\n return node.name() === 'shape-arc';\n })[0];\n if (!(karc instanceof Konva.Arc)) {\n return;\n }\n // find special points\n const begin = group.getChildren(function (node) {\n return node.id() === 'begin';\n })[0];\n const mid = group.getChildren(function (node) {\n return node.id() === 'mid';\n })[0];\n const end = group.getChildren(function (node) {\n return node.id() === 'end';\n })[0];\n // update special points\n switch (anchor.id()) {\n case 'begin':\n begin.x(anchor.x());\n begin.y(anchor.y());\n break;\n case 'mid':\n mid.x(anchor.x());\n mid.y(anchor.y());\n break;\n case 'end':\n end.x(anchor.x());\n end.y(anchor.y());\n break;\n }\n // update shape and compensate for possible drag\n // note: shape.position() and shape.size() won't work...\n const bx = begin.x() - kline.x();\n const by = begin.y() - kline.y();\n const mx = mid.x() - kline.x();\n const my = mid.y() - kline.y();\n const ex = end.x() - kline.x();\n const ey = end.y() - kline.y();\n kline.points([bx, by, mx, my, ex, ey]);\n // larger hitfunc\n kline.hitFunc(function (context) {\n context.beginPath();\n context.moveTo(bx, by);\n context.lineTo(mx, my);\n context.lineTo(ex, ey);\n context.closePath();\n context.fillStrokeShape(kline);\n });\n // update text\n const p2d0 = new Point2D(begin.x(), begin.y());\n const p2d1 = new Point2D(mid.x(), mid.y());\n const p2d2 = new Point2D(end.x(), end.y());\n const line0 = new Line(p2d0, p2d1);\n const line1 = new Line(p2d1, p2d2);\n let angle = getAngle(line0, line1);\n let inclination = line0.getInclination();\n if (angle > 180) {\n angle = 360 - angle;\n inclination += angle;\n }\n\n // update text\n const ktext = klabel.getText();\n // @ts-expect-error\n const meta = ktext.meta;\n const quantification = {\n angle: {value: angle, unit: i18n.t('unit.degree')}\n };\n ktext.setText(replaceFlags(meta.textExpr, quantification));\n // update meta\n meta.quantification = quantification;\n // update position\n const midX = (line0.getMidpoint().getX() + line1.getMidpoint().getX()) / 2;\n const midY = (line0.getMidpoint().getY() + line1.getMidpoint().getY()) / 2;\n const textPos = {\n x: midX,\n y: midY - style.applyZoomScale(15).y\n };\n klabel.position(textPos);\n\n // arc\n const radius = Math.min(line0.getLength(), line1.getLength()) * 33 / 100;\n karc.innerRadius(radius);\n karc.outerRadius(radius);\n karc.angle(angle);\n karc.rotation(-inclination);\n const arcPos = {x: mid.x(), y: mid.y()};\n karc.position(arcPos);\n }\n\n} // class ProtractorFactory\n","import {viewEventNames} from '../image/view';\nimport {ViewFactory} from '../image/viewFactory';\nimport {\n getMatrixFromName,\n getOrientationStringLPS,\n Orientation\n} from '../math/orientation';\nimport {Point3D} from '../math/point';\nimport {Stage} from '../gui/stage';\nimport {Style} from '../gui/style';\nimport {\n getViewOrientation,\n getLayerDetailsFromLayerDivId\n} from '../gui/layerGroup';\nimport {ListenerHandler} from '../utils/listen';\nimport {State} from '../io/state';\nimport {logger} from '../utils/logger';\nimport {getUriQuery, decodeQuery} from '../utils/uri';\nimport {UndoStack} from '../tools/undo';\nimport {ToolboxController} from './toolboxController';\nimport {LoadController} from './loadController';\nimport {DataController} from './dataController';\nimport {OverlayData} from '../gui/overlayData';\nimport {toolList, defaultToolList, toolOptions} from '../tools';\nimport {binderList} from '../gui/stage';\nimport {WindowLevel} from '../image/windowLevel';\nimport {PlaneHelper} from '../image/planeHelper';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {LayerGroup} from '../gui/layerGroup';\nimport {ViewLayer} from '../gui/viewLayer';\nimport {DrawLayer} from '../gui/drawLayer';\nimport {Image} from '../image/image';\nimport {Matrix33} from '../math/matrix';\nimport {DataElement} from '../dicom/dataElement';\nimport {Scalar3D} from '../math/scalar';\nimport {DicomData} from './dataController';\n/* eslint-enable no-unused-vars */\n\n/**\n * View configuration: mainly defines the ´divId´\n * of the associated HTML div.\n */\nexport class ViewConfig {\n /**\n * Associated HTML div id.\n *\n * @type {string}\n */\n divId;\n /**\n * Optional orientation of the data; 'axial', 'coronal' or 'sagittal'.\n * If undefined, will use the data aquisition plane.\n *\n * @type {string|undefined}\n */\n orientation;\n /**\n * Optional view colour map name.\n *\n * @type {string|undefined}\n */\n colourMap;\n /**\n * Optional layer opacity; in [0, 1] range.\n *\n * @type {number|undefined}\n */\n opacity;\n /**\n * Optional layer window level preset name.\n * If present, the preset name will be used and\n * the window centre and width ignored.\n *\n * @type {string|undefined}\n */\n wlPresetName;\n /**\n * Optional layer window center.\n *\n * @type {number|undefined}\n */\n windowCenter;\n /**\n * Optional layer window width.\n *\n * @type {number|undefined}\n */\n windowWidth;\n\n /**\n * @param {string} divId The associated HTML div id.\n */\n constructor(divId) {\n this.divId = divId;\n }\n}\n\n/**\n * Tool configuration.\n */\nexport class ToolConfig {\n /**\n * Optional tool options.\n * For Draw: list of shape names.\n * For Filter: list of filter names.\n *\n * @type {string[]|undefined}\n */\n options;\n\n /**\n * @param {string[]} [options] Optional tool options.\n */\n constructor(options) {\n this.options = options;\n }\n}\n\n/**\n * Application options.\n */\nexport class AppOptions {\n /**\n * DataId indexed object containing the data view configurations.\n *\n * @type {Object|undefined}\n */\n dataViewConfigs;\n /**\n * Tool name indexed object containing individual tool configurations.\n *\n * @type {Object|undefined}\n */\n tools;\n /**\n * Optional array of layerGroup binder names.\n *\n * @type {string[]|undefined}\n */\n binders;\n /**\n * Optional boolean flag to trigger the first data render\n * after the first loaded data or not. Defaults to true.\n *\n * @type {boolean|undefined}\n */\n viewOnFirstLoadItem;\n /**\n * Optional default chraracterset string used for DICOM parsing if\n * not passed in DICOM file.\n *\n * Valid values: {@link https://developer.mozilla.org/en-US/docs/Web/API/Encoding_API/Encodings}.\n *\n * @type {string|undefined}\n */\n defaultCharacterSet;\n /**\n * Optional overlay config.\n *\n * @type {object|undefined}\n */\n overlayConfig;\n /**\n * DOM root document.\n *\n * @type {DocumentFragment}\n */\n rootDocument;\n\n /**\n * @param {Object} [dataViewConfigs] Optional dataId\n * indexed object containing the data view configurations.\n */\n constructor(dataViewConfigs) {\n this.dataViewConfigs = dataViewConfigs;\n }\n}\n\n/**\n * List of ViewConfigs indexed by dataIds.\n *\n * @typedef {Object} DataViewConfigs\n */\n\n/**\n * Main application class.\n *\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * app.init(options);\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\nexport class App {\n\n /**\n * App options.\n *\n * @type {AppOptions}\n */\n #options = null;\n\n /**\n * Data controller.\n *\n * @type {DataController}\n */\n #dataController = null;\n\n /**\n * Toolbox controller.\n *\n * @type {ToolboxController}\n */\n #toolboxController = null;\n\n /**\n * Load controller.\n *\n * @type {LoadController}\n */\n #loadController = null;\n\n /**\n * Stage.\n *\n * @type {Stage}\n */\n #stage = null;\n\n /**\n * Undo stack.\n *\n * @type {UndoStack}\n */\n #undoStack = null;\n\n /**\n * Style.\n *\n * @type {Style}\n */\n #style = new Style();\n\n // overlay datas\n #overlayDatas = {};\n\n /**\n * Listener handler.\n *\n * @type {ListenerHandler}\n */\n #listenerHandler = new ListenerHandler();\n\n /**\n * Get a DicomData.\n *\n * @param {string} dataId The data id.\n * @returns {DicomData|undefined} The data.\n */\n getData(dataId) {\n return this.#dataController.get(dataId);\n }\n\n /**\n * Set the image at the given id.\n *\n * @param {string} dataId The data id.\n * @param {Image} img The associated image.\n */\n setImage(dataId, img) {\n this.#dataController.setImage(dataId, img);\n }\n\n /**\n * Add a new DicomData.\n *\n * @param {DicomData} data The new data.\n * @returns {string} The data id.\n */\n addData(data) {\n // get a new dataId\n const dataId = this.#dataController.getNextDataId();\n // add image to data controller\n this.#dataController.add(\n dataId,\n data\n );\n // optional render\n // if (this.#options.viewOnFirstLoadItem) {\n // this.render(dataId);\n // }\n // return\n return dataId;\n }\n\n /**\n * Get the meta data.\n *\n * @param {string} dataId The data id.\n * @returns {Object|undefined} The list of meta data.\n */\n getMetaData(dataId) {\n let res;\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n res = this.#dataController.get(dataId).meta;\n }\n return res;\n }\n\n /**\n * Get the list of ids in the data storage.\n *\n * @returns {string[]} The list of data ids.\n */\n getDataIds() {\n return this.#dataController.getDataIds();\n }\n\n /**\n * Get the list of dataIds that contain the input UIDs.\n *\n * @param {string[]} uids A list of UIDs.\n * @returns {string[]} The list of dataIds that contain the UIDs.\n */\n getDataIdsFromSopUids(uids) {\n return this.#dataController.getDataIdsFromSopUids(uids);\n }\n\n /**\n * Can the data (of the active view of the active layer) be scrolled?\n *\n * @returns {boolean} True if the data has a third dimension greater than one.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n canScroll() {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n const controller = viewLayer.getViewController();\n return controller.canScroll();\n }\n\n /**\n * Can window and level be applied to the data\n * (of the active view of the active layer)?\n *\n * @returns {boolean} True if the data is monochrome.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n canWindowLevel() {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n const controller = viewLayer.getViewController();\n return controller.canWindowLevel();\n }\n\n /**\n * Get the active layer group scale on top of the base scale.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getAddedScale() {\n return this.#stage.getActiveLayerGroup().getAddedScale();\n }\n\n /**\n * Get the base scale of the active layer group.\n *\n * @returns {Scalar3D} The scale as {x,y,z}.\n */\n getBaseScale() {\n return this.#stage.getActiveLayerGroup().getBaseScale();\n }\n\n /**\n * Get the layer offset of the active layer group.\n *\n * @returns {Scalar3D} The offset as {x,y,z}.\n */\n getOffset() {\n return this.#stage.getActiveLayerGroup().getOffset();\n }\n\n /**\n * Get the toolbox controller.\n *\n * @returns {ToolboxController} The controller.\n */\n getToolboxController() {\n return this.#toolboxController;\n }\n\n /**\n * Get the active layer group.\n * The layer is available after the first loaded item.\n *\n * @returns {LayerGroup|undefined} The layer group.\n */\n getActiveLayerGroup() {\n return this.#stage.getActiveLayerGroup();\n }\n\n /**\n * Set the active layer group.\n *\n * @param {number} index The layer group index.\n */\n setActiveLayerGroup(index) {\n this.#stage.setActiveLayerGroup(index);\n }\n\n /**\n * Get the view layers associated to a data id.\n * The layer are available after the first loaded item.\n *\n * @param {string} dataId The data id.\n * @returns {ViewLayer[]} The layers.\n */\n getViewLayersByDataId(dataId) {\n return this.#stage.getViewLayersByDataId(dataId);\n }\n\n /**\n * Get the draw layers associated to a data id.\n * The layer are available after the first loaded item.\n *\n * @param {string} dataId The data id.\n * @returns {DrawLayer[]} The layers.\n */\n getDrawLayersByDataId(dataId) {\n return this.#stage.getDrawLayersByDataId(dataId);\n }\n\n /**\n * Get a layer group by div id.\n * The layer is available after the first loaded item.\n *\n * @param {string} divId The div id.\n * @returns {LayerGroup} The layer group.\n */\n getLayerGroupByDivId(divId) {\n return this.#stage.getLayerGroupByDivId(divId);\n }\n\n /**\n * Get the number of layer groups.\n *\n * @returns {number} The number of groups.\n */\n getNumberOfLayerGroups() {\n return this.#stage.getNumberOfLayerGroups();\n }\n\n /**\n * Get the app style.\n *\n * @returns {object} The app style.\n */\n getStyle() {\n return this.#style;\n }\n\n /**\n * Add a command to the undo stack.\n *\n * @param {object} cmd The command to add.\n * @fires UndoStack#undoadd\n * @function\n */\n addToUndoStack = (cmd) => {\n if (this.#undoStack !== null) {\n this.#undoStack.add(cmd);\n }\n };\n\n /**\n * Initialise the application.\n *\n * @param {AppOptions} opt The application options.\n * @example\n * // create the dwv app\n * const app = new dwv.App();\n * // initialise\n * const viewConfig0 = new dwv.ViewConfig('layerGroup0');\n * const viewConfigs = {'*': [viewConfig0]};\n * const options = new dwv.AppOptions(viewConfigs);\n * options.viewOnFirstLoadItem = false;\n * app.init(options);\n * // render button\n * const button = document.createElement('button');\n * button.id = 'render';\n * button.disabled = true;\n * button.appendChild(document.createTextNode('render'));\n * document.body.appendChild(button);\n * app.addEventListener('load', function () {\n * const button = document.getElementById('render');\n * button.disabled = false;\n * button.onclick = function () {\n * // render data #0\n * app.render(0);\n * };\n * });\n * // load dicom data\n * app.loadURLs([\n * 'https://raw.githubusercontent.com/ivmartel/dwv/master/tests/data/bbmri-53323851.dcm'\n * ]);\n */\n init(opt) {\n // store\n this.#options = opt;\n // defaults\n if (typeof this.#options.viewOnFirstLoadItem === 'undefined') {\n this.#options.viewOnFirstLoadItem = true;\n }\n if (typeof this.#options.dataViewConfigs === 'undefined') {\n this.#options.dataViewConfigs = {};\n }\n if (typeof this.#options.rootDocument === 'undefined') {\n this.#options.rootDocument = document;\n }\n\n // undo stack\n this.#undoStack = new UndoStack();\n this.#undoStack.addEventListener('undoadd', this.#fireEvent);\n this.#undoStack.addEventListener('undo', this.#fireEvent);\n this.#undoStack.addEventListener('redo', this.#fireEvent);\n\n // tools\n if (typeof this.#options.tools !== 'undefined') {\n // setup the tool list\n const appToolList = {};\n const keys = Object.keys(this.#options.tools);\n for (let t = 0; t < keys.length; ++t) {\n const toolName = keys[t];\n // find the tool in the default tool list\n let toolConstructor = defaultToolList[toolName];\n // or use external one\n if (typeof toolConstructor === 'undefined') {\n toolConstructor = toolList[toolName];\n }\n if (typeof toolConstructor !== 'undefined') {\n // create tool instance\n appToolList[toolName] = new toolConstructor(this);\n // register listeners\n if (typeof appToolList[toolName].addEventListener !== 'undefined') {\n const names = appToolList[toolName].getEventNames();\n for (let j = 0; j < names.length; ++j) {\n appToolList[toolName].addEventListener(names[j], this.#fireEvent);\n }\n }\n // tool options\n const toolParams = this.#options.tools[toolName];\n if (typeof toolParams.options !== 'undefined' &&\n toolParams.options.length !== 0) {\n let type = 'raw';\n if (typeof appToolList[toolName].getOptionsType !== 'undefined') {\n type = appToolList[toolName].getOptionsType();\n }\n let appToolOptions;\n if (type === 'instance' || type === 'factory') {\n appToolOptions = {};\n for (let i = 0; i < toolParams.options.length; ++i) {\n const optionName = toolParams.options[i];\n let optionClassName = optionName;\n if (type === 'factory') {\n optionClassName += 'Factory';\n }\n const toolNamespace = toolName.charAt(0).toLowerCase() +\n toolName.slice(1);\n if (typeof toolOptions[toolNamespace][optionClassName] !==\n 'undefined') {\n appToolOptions[optionName] =\n toolOptions[toolNamespace][optionClassName];\n } else {\n logger.warn('Could not find option class for: ' +\n optionName);\n }\n }\n } else {\n appToolOptions = toolParams.options;\n }\n appToolList[toolName].setOptions(appToolOptions);\n }\n } else {\n logger.warn('Could not initialise unknown tool: ' + toolName);\n }\n }\n // add tools to the controller\n this.#toolboxController = new ToolboxController(appToolList);\n }\n\n // create load controller\n this.#loadController =\n new LoadController(this.#options.defaultCharacterSet);\n this.#loadController.onloadstart = this.#onloadstart;\n this.#loadController.onprogress = this.#onloadprogress;\n this.#loadController.onloaditem = this.#onloaditem;\n this.#loadController.onload = this.#onload;\n this.#loadController.onloadend = this.#onloadend;\n this.#loadController.onerror = this.#onloaderror;\n this.#loadController.onabort = this.#onloadabort;\n\n // create data controller\n this.#dataController = new DataController();\n // propagate data events\n this.#dataController.addEventListener('dataadd', this.#fireEvent);\n this.#dataController.addEventListener('dataremove', this.#fireEvent);\n this.#dataController.addEventListener('dataimageset', this.#fireEvent);\n this.#dataController.addEventListener('dataupdate', this.#fireEvent);\n // propage individual data events\n this.#dataController.addEventListener('dataadd', (event) => {\n this.#bindDataEvents(event.dataid);\n });\n this.#dataController.addEventListener('dataremove', (event) => {\n this.#unbindDataEvents(event.dataid);\n });\n // create stage\n this.#stage = new Stage();\n if (typeof this.#options.binders !== 'undefined') {\n this.#stage.setBinders(this.#options.binders);\n }\n }\n\n /**\n * Propagate data events.\n *\n * @param {string} dataId The data to bind.\n */\n #bindDataEvents(dataId) {\n const data = this.getData(dataId);\n if (typeof data.annotationGroup !== 'undefined') {\n data.annotationGroup.addEventListener(\n 'annotationadd', this.#fireEvent);\n data.annotationGroup.addEventListener(\n 'annotationupdate', this.#fireEvent);\n data.annotationGroup.addEventListener(\n 'annotationremove', this.#fireEvent);\n }\n }\n\n /**\n * Stop propagating data events.\n *\n * @param {string} dataId The data to unbind.\n */\n #unbindDataEvents(dataId) {\n const data = this.getData(dataId);\n if (typeof data.annotationGroup !== 'undefined') {\n data.annotationGroup.removeEventListener(\n 'annotationadd', this.#fireEvent);\n data.annotationGroup.removeEventListener(\n 'annotationupdate', this.#fireEvent);\n data.annotationGroup.removeEventListener(\n 'annotationremove', this.#fireEvent);\n }\n }\n\n /**\n * Reset the application.\n */\n reset() {\n // clear objects\n this.#stage.empty();\n this.#overlayDatas = {};\n // reset undo/redo\n if (this.#undoStack) {\n this.#undoStack = new UndoStack();\n this.#undoStack.addEventListener('undoadd', this.#fireEvent);\n this.#undoStack.addEventListener('undo', this.#fireEvent);\n this.#undoStack.addEventListener('redo', this.#fireEvent);\n }\n }\n\n /**\n * Reset the layout of the application.\n */\n resetLayout() {\n this.#stage.reset();\n this.#stage.draw();\n }\n\n /**\n * Add an event listener to this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type, will be called with the fired event.\n */\n addEventListener(type, callback) {\n this.#listenerHandler.add(type, callback);\n }\n\n /**\n * Remove an event listener from this class.\n *\n * @param {string} type The event type.\n * @param {Function} callback The function associated with the provided\n * event type.\n */\n removeEventListener(type, callback) {\n this.#listenerHandler.remove(type, callback);\n }\n\n // load API [begin] -------------------------------------------------------\n\n /**\n * Load a list of files. Can be image files or a state file.\n *\n * @param {File[]} files The list of files to load.\n * @fires App#loadstart\n * @fires App#loadprogress\n * @fires App#loaditem\n * @fires App#loadend\n * @fires App#error\n * @fires App#abort\n * @function\n */\n loadFiles = (files) => {\n // Get new data id\n const dataId = this.#dataController.getNextDataId();\n if (files.length === 0) {\n logger.warn('Ignoring empty input file list.');\n return;\n }\n this.#loadController.loadFiles(files, dataId);\n };\n\n /**\n * Load a list of URLs. Can be image files or a state file.\n *\n * @param {string[]} urls The list of urls to load.\n * @param {object} [options] The options object, can contain:\n * - requestHeaders: an array of {name, value} to use as request headers,\n * - withCredentials: boolean xhr.withCredentials flag to pass to the request,\n * - batchSize: the size of the request url batch.\n * @fires App#loadstart\n * @fires App#loadprogress\n * @fires App#loaditem\n * @fires App#loadend\n * @fires App#error\n * @fires App#abort\n * @function\n */\n loadURLs = (urls, options) => {\n // Get new data id\n const dataId = this.#dataController.getNextDataId();\n if (urls.length === 0) {\n logger.warn('Ignoring empty input url list.');\n return;\n }\n this.#loadController.loadURLs(urls, dataId, options);\n };\n\n /**\n * Load from an input uri.\n *\n * @param {string} uri The input uri, for example: 'window.location.href'.\n * @param {object} [options] Optional url request options.\n * @function\n */\n loadFromUri = (uri, options) => {\n const query = getUriQuery(uri);\n\n // load end callback: loads the state.\n const onLoadEnd = (/*event*/) => {\n this.removeEventListener('loadend', onLoadEnd);\n this.loadURLs([query.state]);\n };\n\n // check query\n if (query && typeof query.input !== 'undefined') {\n // optional display state\n if (typeof query.state !== 'undefined') {\n // queue after main data load\n this.addEventListener('loadend', onLoadEnd);\n }\n // load base image\n decodeQuery(query, this.loadURLs, options);\n }\n // no else to allow for empty uris\n };\n\n /**\n * Load a list of ArrayBuffers.\n *\n * @param {Array} data The list of ArrayBuffers to load\n * in the form of [{name: \"\", filename: \"\", data: data}].\n * @fires App#loadstart\n * @fires App#loadprogress\n * @fires App#loaditem\n * @fires App#loadend\n * @fires App#error\n * @fires App#abort\n * @function\n */\n loadImageObject = (data) => {\n // Get new data id\n const dataId = this.#dataController.getNextDataId();\n this.#loadController.loadImageObject(data, dataId);\n };\n\n /**\n * Abort all the current loads.\n */\n abortAllLoads() {\n const ids = this.#loadController.getLoadingDataIds();\n for (const id of ids) {\n this.abortLoad(id);\n }\n }\n\n /**\n * Abort an individual data load.\n *\n * @param {string} dataId The data to stop loading.\n */\n abortLoad(dataId) {\n // abort load\n this.#loadController.abort(dataId);\n // remove data\n this.#dataController.remove(dataId);\n // clean up stage\n this.#stage.removeLayersByDataId(dataId);\n }\n\n // load API [end] ---------------------------------------------------------\n\n /**\n * Fit the display to the data of each layer group.\n * To be called once the image is loaded.\n */\n fitToContainer() {\n this.#stage.fitToContainer();\n }\n\n /**\n * Init the Window/Level display\n * (of the active layer of the active layer group).\n *\n * @deprecated Please set the opacity of the desired view layer directly.\n */\n initWLDisplay() {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n const controller = viewLayer.getViewController();\n controller.initialise();\n }\n\n /**\n * Set the imageSmoothing flag value. Default is false.\n *\n * @param {boolean} flag True to enable smoothing.\n */\n setImageSmoothing(flag) {\n this.#stage.setImageSmoothing(flag);\n this.#stage.draw();\n }\n\n /**\n * Get the layer group configuration from a data id.\n *\n * @param {string} dataId The data id.\n * @param {boolean} [excludeStarConfig] Exclude the star config\n * (default to false).\n * @returns {ViewConfig[]} The list of associated configs.\n */\n getViewConfigs(dataId, excludeStarConfig) {\n // check options\n if (this.#options.dataViewConfigs === null ||\n typeof this.#options.dataViewConfigs === 'undefined') {\n throw new Error('No available data view configuration');\n }\n let configs = [];\n if (typeof this.#options.dataViewConfigs[dataId] !== 'undefined') {\n configs = this.#options.dataViewConfigs[dataId];\n } else if (!excludeStarConfig &&\n typeof this.#options.dataViewConfigs['*'] !== 'undefined') {\n configs = this.#options.dataViewConfigs['*'];\n }\n return configs;\n }\n\n /**\n * Get the layer group configuration for a data id and group\n * div id.\n *\n * @param {string} dataId The data id.\n * @param {string} groupDivId The layer group div id.\n * @param {boolean} [excludeStarConfig] Exclude the star config\n * (default to false).\n * @returns {ViewConfig|undefined} The associated config.\n */\n getViewConfig(dataId, groupDivId, excludeStarConfig) {\n const configs = this.getViewConfigs(dataId, excludeStarConfig);\n return configs.find(function (item) {\n return item.divId === groupDivId;\n });\n }\n\n /**\n * Get the data view config.\n * Carefull, returns a reference, do not modify without resetting.\n *\n * @returns {Object} The configuration list.\n */\n getDataViewConfigs() {\n return this.#options.dataViewConfigs;\n }\n\n /**\n * Set the data view configuration.\n * Resets the stage and recreates all the views.\n *\n * @param {Object} configs The configuration list.\n */\n setDataViewConfigs(configs) {\n // clean up\n this.#stage.empty();\n // set new\n this.#options.dataViewConfigs = configs;\n // create layer groups\n this.#createLayerGroups(configs);\n }\n\n /**\n * Add a data view config.\n *\n * @param {string} dataId The data id.\n * @param {ViewConfig} config The view configuration.\n */\n addDataViewConfig(dataId, config) {\n // add to list\n const configs = this.#options.dataViewConfigs;\n if (typeof configs[dataId] === 'undefined') {\n configs[dataId] = [];\n }\n const equalDivId = function (item) {\n return item.divId === config.divId;\n };\n const itemIndex = configs[dataId].findIndex(equalDivId);\n if (itemIndex === -1) {\n this.#options.dataViewConfigs[dataId].push(config);\n } else {\n throw new Error('Duplicate view config for data ' + dataId +\n ' and div ' + config.divId);\n }\n\n // add layer group if not done\n if (typeof this.#stage.getLayerGroupByDivId(config.divId) === 'undefined') {\n this.#createLayerGroup(config);\n }\n\n // render (will create layers)\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n this.render(dataId, [config]);\n }\n }\n\n /**\n * Remove a data view config.\n *\n * @param {string} dataId The data id.\n * @param {string} divId The div id.\n */\n removeDataViewConfig(dataId, divId) {\n // remove from list\n const configs = this.#options.dataViewConfigs;\n if (typeof configs[dataId] === 'undefined') {\n // no config for dataId\n return;\n }\n const equalDivId = function (item) {\n return item.divId === divId;\n };\n const itemIndex = configs[dataId].findIndex(equalDivId);\n if (itemIndex === -1) {\n // no config for divId\n return;\n }\n configs[dataId].splice(itemIndex, 1);\n if (configs[dataId].length === 0) {\n delete configs[dataId];\n }\n\n // data is loaded, remove view\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n const lg = this.#stage.getLayerGroupByDivId(divId);\n if (typeof lg !== 'undefined') {\n const vls = lg.getViewLayersByDataId(dataId);\n if (vls.length === 1) {\n lg.removeLayer(vls[0]);\n }\n const dls = lg.getDrawLayersByDataId(dataId);\n if (dls.length === 1) {\n lg.removeLayer(dls[0]);\n }\n if (vls.length === 0 && dls.length === 0) {\n throw new Error('Expected one layer, got none');\n }\n if (lg.getNumberOfLayers() === 0) {\n this.#stage.removeLayerGroup(lg);\n }\n }\n }\n }\n\n /**\n * Update an existing data view config.\n * Removes and re-creates the layer if found.\n *\n * @param {string} dataId The data id.\n * @param {string} divId The div id.\n * @param {ViewConfig} config The view configuration.\n */\n updateDataViewConfig(dataId, divId, config) {\n const configs = this.#options.dataViewConfigs;\n // check data id\n if (typeof configs[dataId] === 'undefined') {\n throw new Error('No config for dataId: ' + dataId);\n }\n // check div id\n const equalDivId = function (item) {\n return item.divId === divId;\n };\n const itemIndex = configs[dataId].findIndex(equalDivId);\n if (itemIndex === -1) {\n throw new Error('No config for dataId: ' +\n dataId + ' and divId: ' + divId);\n }\n // update config\n const configToUpdate = configs[dataId][itemIndex];\n for (const prop in config) {\n configToUpdate[prop] = config[prop];\n }\n\n // remove previous layers\n const lg = this.#stage.getLayerGroupByDivId(configToUpdate.divId);\n if (typeof lg !== 'undefined') {\n const vls = lg.getViewLayersByDataId(dataId);\n if (vls.length === 1) {\n lg.removeLayer(vls[0]);\n }\n const dls = lg.getDrawLayersByDataId(dataId);\n if (dls.length === 1) {\n lg.removeLayer(dls[0]);\n }\n if (vls.length === 0 && dls.length === 0) {\n throw new Error('Expected one layer, got none');\n }\n }\n\n // render (will create layer)\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n this.render(dataId, [configToUpdate]);\n }\n }\n\n /**\n * Create layer groups according to a data view config:\n * adds them to stage and binds them.\n *\n * @param {DataViewConfigs} dataViewConfigs The data view config.\n */\n #createLayerGroups(dataViewConfigs) {\n const dataKeys = Object.keys(dataViewConfigs);\n const divIds = [];\n for (let i = 0; i < dataKeys.length; ++i) {\n const viewConfigs = dataViewConfigs[dataKeys[i]];\n for (let j = 0; j < viewConfigs.length; ++j) {\n const viewConfig = viewConfigs[j];\n // view configs can contain the same divIds, avoid duplicating\n if (!divIds.includes(viewConfig.divId)) {\n this.#createLayerGroup(viewConfig);\n divIds.push(viewConfig.divId);\n }\n }\n }\n }\n\n /**\n * Create a layer group according to a view config:\n * adds it to stage and binds it.\n *\n * @param {ViewConfig} viewConfig The view config.\n */\n #createLayerGroup(viewConfig) {\n // create new layer group\n const element = this.#options.rootDocument.getElementById(viewConfig.divId);\n const layerGroup = this.#stage.addLayerGroup(element);\n // bind events\n this.#bindLayerGroupToApp(layerGroup);\n }\n\n /**\n * Set the layer groups binders.\n *\n * @param {string[]} list The list of binder names.\n */\n setLayerGroupsBinders(list) {\n // create instances\n const instances = [];\n for (let i = 0; i < list.length; ++i) {\n if (typeof binderList[list[i]] !== 'undefined') {\n instances.push(new binderList[list[i]]);\n }\n }\n // pass to stage\n this.#stage.setBinders(instances);\n }\n\n /**\n * Render the current data.\n *\n * @param {string} dataId The data id to render.\n * @param {ViewConfig[]} [viewConfigs] The list of configs to render.\n */\n render(dataId, viewConfigs) {\n if (typeof dataId === 'undefined' || dataId === null) {\n throw new Error('Cannot render without data id');\n }\n // guess data type\n const isImage =\n typeof this.getData(dataId).image !== 'undefined';\n const isMeasurement =\n typeof this.getData(dataId).annotationGroup !== 'undefined';\n\n // create layer groups if not done yet\n // (create all to allow for ratio sync)\n if (this.#stage.getNumberOfLayerGroups() === 0) {\n this.#createLayerGroups(this.#options.dataViewConfigs);\n }\n\n // use options list if non provided\n if (typeof viewConfigs === 'undefined') {\n viewConfigs = this.getViewConfigs(dataId);\n }\n\n // nothing to do if no view config\n if (viewConfigs.length === 0) {\n logger.info('Not rendering data: ' + dataId +\n ' (no data view config)');\n return;\n }\n\n // loop on configs\n for (let i = 0; i < viewConfigs.length; ++i) {\n const config = viewConfigs[i];\n const layerGroup =\n this.#stage.getLayerGroupByDivId(config.divId);\n // layer group must exist\n if (!layerGroup) {\n throw new Error('No layer group for ' + config.divId);\n }\n // create layer if needed\n // warn: needs a loaded DOM\n if (typeof this.#dataController.get(dataId) !== 'undefined') {\n if (isImage &&\n layerGroup.getViewLayersByDataId(dataId).length === 0\n ) {\n this.#addViewLayer(dataId, config);\n } else if (isMeasurement &&\n layerGroup.getDrawLayersByDataId(dataId).length === 0\n ) {\n this.addDrawLayer(dataId, config);\n }\n }\n // draw\n layerGroup.draw();\n }\n }\n\n /**\n * Zoom the layers of the active layer group.\n *\n * @param {number} step The step to add to the current zoom.\n * @param {number} cx The zoom center X coordinate.\n * @param {number} cy The zoom center Y coordinate.\n */\n zoom(step, cx, cy) {\n const layerGroup = this.#stage.getActiveLayerGroup();\n const viewController = layerGroup.getActiveViewLayer().getViewController();\n const k = viewController.getCurrentScrollPosition();\n const center = new Point3D(cx, cy, k);\n layerGroup.addScale(step, center);\n layerGroup.draw();\n }\n\n /**\n * Apply a translation to the layers of the active layer group.\n *\n * @param {number} tx The translation along X.\n * @param {number} ty The translation along Y.\n */\n translate(tx, ty) {\n const layerGroup = this.#stage.getActiveLayerGroup();\n layerGroup.addTranslation({x: tx, y: ty, z: 0});\n layerGroup.draw();\n }\n\n /**\n * Set the active view layer (of the active layer group) opacity.\n *\n * @param {number} alpha The opacity ([0:1] range).\n * @deprecated Please set the opacity of the desired view layer directly.\n */\n setOpacity(alpha) {\n const viewLayer = this.#stage.getActiveLayerGroup().getActiveViewLayer();\n viewLayer.setOpacity(alpha);\n viewLayer.draw();\n }\n\n /**\n * Set the drawings of the active layer group.\n *\n * @deprecated\n * @param {Array} _drawings An array of drawings.\n * @param {Array} _drawingsDetails An array of drawings details.\n */\n setDrawings(_drawings, _drawingsDetails) {\n // does nothing\n }\n\n /**\n * Get the JSON state of the app.\n *\n * @deprecated\n * @returns {string} The state of the app as a JSON string.\n */\n getJsonState() {\n const state = new State();\n return state.toJSON(this);\n }\n\n /**\n * Apply a JSON state to this app.\n *\n * @deprecated\n * @param {string} jsonState The state of the app as a JSON string.\n */\n applyJsonState(jsonState) {\n const state = new State();\n state.apply(this, state.fromJSON(jsonState));\n }\n\n // Handler Methods -----------------------------------------------------------\n\n /**\n * Handle resize: fit the display to the window.\n * To be called once the image is loaded.\n * Can be connected to a window 'resize' event.\n *\n * @function\n */\n onResize = () => {\n this.fitToContainer();\n };\n\n /**\n * Key down callback. Meant to be used in tools.\n *\n * @param {KeyboardEvent} event The key down event.\n * @fires App#keydown\n * @function\n */\n onKeydown = (event) => {\n /**\n * Key down event.\n *\n * @event App#keydown\n * @type {KeyboardEvent}\n * @property {string} type The event type: keydown.\n * @property {string} context The tool where the event originated.\n */\n this.#fireEvent(event);\n };\n\n /**\n * Key down event handler example.\n * - CRTL-Z: undo,\n * - CRTL-Y: redo,\n * - CRTL-ARROW_LEFT: next element on fourth dim,\n * - CRTL-ARROW_UP: next element on third dim,\n * - CRTL-ARROW_RIGHT: previous element on fourth dim,\n * - CRTL-ARROW_DOWN: previous element on third dim.\n *\n * Applies to the active view of the active layer group.\n *\n * @param {KeyboardEvent} event The key down event.\n * @fires UndoStack#undo\n * @fires UndoStack#redo\n * @function\n */\n defaultOnKeydown = (event) => {\n if (event.ctrlKey) {\n if (event.shiftKey) {\n const layerGroup = this.#stage.getActiveLayerGroup();\n const viewController =\n layerGroup.getActiveViewLayer().getViewController();\n if (event.key === 'ArrowLeft') { // crtl-shift-arrow-left\n if (viewController.moreThanOne(3)) {\n viewController.decrementIndex(3);\n }\n } else if (event.key === 'ArrowUp') { // crtl-shift-arrow-up\n if (layerGroup.canScroll()) {\n viewController.incrementScrollIndex();\n }\n } else if (event.key === 'ArrowRight') { // crtl-shift-arrow-right\n if (layerGroup.moreThanOne(3)) {\n viewController.incrementIndex(3);\n }\n } else if (event.key === 'ArrowDown') { // crtl-shift-arrow-down\n if (layerGroup.canScroll()) {\n viewController.decrementScrollIndex();\n }\n }\n } else if (event.key === 'y') { // crtl-y\n this.#undoStack.redo();\n } else if (event.key === 'z') { // crtl-z\n this.#undoStack.undo();\n } else if (event.key === ' ') { // crtl-space\n for (let i = 0; i < this.#stage.getNumberOfLayerGroups(); ++i) {\n this.#stage.getLayerGroup(i).setShowCrosshair(\n !this.#stage.getLayerGroup(i).getShowCrosshair()\n );\n }\n }\n }\n };\n\n // Internal members shortcuts-----------------------------------------------\n\n /**\n * Reset the display.\n */\n resetDisplay() {\n this.resetLayout();\n this.initWLDisplay();\n }\n\n /**\n * Reset the app zoom.\n */\n resetZoom() {\n this.resetLayout();\n }\n\n /**\n * Set the colour map of the active view of the active layer group.\n *\n * @param {string} name The colour map name.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n setColourMap(name) {\n const viewController =\n this.#stage.getActiveLayerGroup()\n .getActiveViewLayer().getViewController();\n viewController.setColourMap(name);\n }\n\n /**\n * Set the window/level preset of the active view of the active layer group.\n *\n * @param {string} preset The window/level preset.\n * @deprecated Please use the ViewController equivalent directly instead.\n */\n setWindowLevelPreset(preset) {\n const viewController =\n this.#stage.getActiveLayerGroup()\n .getActiveViewLayer().getViewController();\n viewController.setWindowLevelPreset(preset);\n }\n\n /**\n * Set the tool.\n *\n * @param {string} tool The tool.\n */\n setTool(tool) {\n // bind tool to active layer\n for (let i = 0; i < this.#stage.getNumberOfLayerGroups(); ++i) {\n const layerGroup = this.#stage.getLayerGroup(i);\n // draw or view layer\n const isDrawTool = tool === 'Draw' ||\n tool === 'Livewire' ||\n tool === 'Floodfill';\n let layer;\n if (isDrawTool &&\n typeof layerGroup.getActiveDrawLayer() !== 'undefined') {\n layer = layerGroup.getActiveDrawLayer();\n } else {\n layer = layerGroup.getActiveViewLayer();\n }\n if (typeof layer !== 'undefined') {\n this.#toolboxController.bindLayerGroup(layerGroup, layer);\n }\n }\n\n // set toolbox tool\n this.#toolboxController.setSelectedTool(tool);\n }\n\n /**\n * Set the tool live features.\n *\n * @param {object} list The list of features.\n */\n setToolFeatures(list) {\n this.#toolboxController.setToolFeatures(list);\n }\n\n /**\n * Undo the last action.\n *\n * @fires UndoStack#undo\n */\n undo() {\n this.#undoStack.undo();\n }\n\n /**\n * Redo the last action.\n *\n * @fires UndoStack#redo\n */\n redo() {\n this.#undoStack.redo();\n }\n\n /**\n * Get the undo stack size.\n *\n * @returns {number} The size of the stack.\n */\n getStackSize() {\n return this.#undoStack.getStackSize();\n }\n\n /**\n * Get the current undo stack index.\n *\n * @returns {number} The stack index.\n */\n getCurrentStackIndex() {\n return this.#undoStack.getCurrentStackIndex();\n }\n\n /**\n * Get the overlay data for a data id.\n *\n * @param {string} dataId The data id.\n * @returns {OverlayData|undefined} The overlay data.\n */\n getOverlayData(dataId) {\n let data;\n if (typeof this.#overlayDatas !== 'undefined') {\n data = this.#overlayDatas[dataId];\n }\n return data;\n }\n\n /**\n * Toggle overlay listeners.\n *\n * @param {string} dataId The data id.\n */\n toggleOverlayListeners(dataId) {\n const data = this.getOverlayData(dataId);\n if (typeof data !== 'undefined') {\n if (data.isListening()) {\n data.removeAppListeners();\n } else {\n data.addAppListeners();\n }\n }\n }\n\n // Private Methods -----------------------------------------------------------\n\n /**\n * Fire an event: call all associated listeners with the input event object.\n *\n * @param {object} event The event to fire.\n */\n #fireEvent = (event) => {\n this.#listenerHandler.fireEvent(event);\n };\n\n /**\n * Data load start callback.\n *\n * @param {object} event The load start event.\n */\n #onloadstart = (event) => {\n // create overlay data\n if (typeof this.#options.overlayConfig !== 'undefined') {\n this.#overlayDatas[event.dataid] = new OverlayData(\n this, event.dataid, this.#options.overlayConfig);\n }\n /**\n * Load start event.\n *\n * @event App#loadstart\n * @type {object}\n * @property {string} type The event type: loadstart.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n */\n event.type = 'loadstart';\n this.#fireEvent(event);\n };\n\n /**\n * Data load progress callback.\n *\n * @param {object} event The progress event.\n */\n #onloadprogress = (event) => {\n /**\n * Load progress event.\n *\n * @event App#loadprogress\n * @type {object}\n * @property {string} type The event type: loadprogress.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n * @property {number} loaded The loaded percentage.\n * @property {number} total The total percentage.\n */\n event.type = 'loadprogress';\n this.#fireEvent(event);\n };\n\n /**\n * Data load callback.\n *\n * @param {object} event The load event.\n */\n #onloaditem = (event) => {\n // check event\n if (typeof event.data === 'undefined') {\n logger.error('Missing loaditem event data.');\n }\n if (typeof event.loadtype === 'undefined') {\n logger.error('Missing loaditem event load type.');\n }\n\n const isFirstLoadItem = event.isfirstitem;\n\n let eventMetaData = null;\n if (event.loadtype === 'image') {\n if (isFirstLoadItem) {\n this.#dataController.add(event.dataid, event.data);\n } else {\n this.#dataController.update(event.dataid, event.data);\n }\n eventMetaData = event.data.meta;\n } else if (event.loadtype === 'state') {\n this.applyJsonState(event.data);\n eventMetaData = 'state';\n }\n\n /**\n * Load item event: fired when a load item is successfull.\n *\n * @event App#loaditem\n * @type {object}\n * @property {string} type The event type: loaditem.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n * @property {object} data The loaded meta data.\n */\n this.#fireEvent({\n type: 'loaditem',\n data: eventMetaData,\n source: event.source,\n loadtype: event.loadtype,\n dataid: event.dataid,\n isfirstitem: event.isfirstitem,\n warn: event.warn\n });\n\n // update overlay data if present\n if (typeof this.#overlayDatas !== 'undefined' &&\n typeof this.#overlayDatas[event.dataid] !== 'undefined') {\n this.#overlayDatas[event.dataid].addItemMeta(eventMetaData);\n }\n\n // render if first and flag allows\n if (event.loadtype === 'image' &&\n this.getViewConfigs(event.dataid).length !== 0 &&\n isFirstLoadItem && this.#options.viewOnFirstLoadItem) {\n this.render(event.dataid);\n }\n };\n\n /**\n * Data load callback.\n *\n * @param {object} event The load event.\n */\n #onload = (event) => {\n /**\n * Load event: fired when a load finishes successfully.\n *\n * @event App#load\n * @type {object}\n * @property {string} type The event type: load.\n * @property {string} loadType The load type: image or state.\n */\n event.type = 'load';\n this.#fireEvent(event);\n };\n\n /**\n * Data load end callback.\n *\n * @param {object} event The load end event.\n */\n #onloadend = (event) => {\n /**\n * Main load end event: fired when the load finishes,\n * successfully or not.\n *\n * @event App#loadend\n * @type {object}\n * @property {string} type The event type: loadend.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n */\n event.type = 'loadend';\n this.#fireEvent(event);\n };\n\n /**\n * Data load error callback.\n *\n * @param {object} event The error event.\n */\n #onloaderror = (event) => {\n /**\n * Load error event.\n *\n * @event App#error\n * @type {object}\n * @property {string} type The event type: error.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n * @property {object} error The error.\n * @property {object} target The event target.\n */\n if (typeof event.type === 'undefined') {\n event.type = 'error';\n }\n this.#fireEvent(event);\n };\n\n /**\n * Data load abort callback.\n *\n * @param {object} event The abort event.\n */\n #onloadabort = (event) => {\n /**\n * Load abort event.\n *\n * @event App#abort\n * @type {object}\n * @property {string} type The event type: abort.\n * @property {string} loadType The load type: image or state.\n * @property {*} source The load source: string for an url,\n * File for a file.\n */\n if (typeof event.type === 'undefined') {\n event.type = 'abort';\n }\n this.#fireEvent(event);\n };\n\n /**\n * Bind layer group events to app.\n *\n * @param {LayerGroup} group The layer group.\n */\n #bindLayerGroupToApp(group) {\n // propagate layer group events\n group.addEventListener('zoomchange', this.#fireEvent);\n group.addEventListener('offsetchange', this.#fireEvent);\n // propagate viewLayer events\n group.addEventListener('renderstart', this.#fireEvent);\n group.addEventListener('renderend', this.#fireEvent);\n // propagate view events\n for (let j = 0; j < viewEventNames.length; ++j) {\n group.addEventListener(viewEventNames[j], this.#fireEvent);\n }\n // propagate drawLayer events\n if (this.#toolboxController && this.#toolboxController.hasTool('Draw')) {\n group.addEventListener('drawcreate', this.#fireEvent);\n group.addEventListener('drawdelete', this.#fireEvent);\n }\n // updata data view config\n group.addEventListener('wlchange', (event) => {\n const layerDetails = getLayerDetailsFromLayerDivId(event.srclayerid);\n const groupId = layerDetails.groupDivId;\n const config = this.getViewConfig(event.dataid, groupId, true);\n if (typeof config !== 'undefined') {\n // reset previous values\n config.windowCenter = undefined;\n config.windowWidth = undefined;\n config.wlPresetName = undefined;\n // window width and center\n if (event.value.length === 2) {\n config.windowCenter = event.value[0];\n config.windowWidth = event.value[1];\n }\n // window level preset name\n if (event.value.length === 3) {\n config.wlPresetName = event.value[2];\n }\n }\n });\n group.addEventListener('opacitychange', (event) => {\n const layerDetails = getLayerDetailsFromLayerDivId(event.srclayerid);\n const groupId = layerDetails.groupDivId;\n const config = this.getViewConfig(event.dataid, groupId, true);\n if (typeof config !== 'undefined') {\n config.opacity = event.value[0];\n }\n });\n group.addEventListener('colourmapchange', (event) => {\n const layerDetails = getLayerDetailsFromLayerDivId(event.srclayerid);\n const groupId = layerDetails.groupDivId;\n const config = this.getViewConfig(event.dataid, groupId, true);\n if (typeof config !== 'undefined') {\n config.colourMap = event.value[0];\n }\n });\n }\n\n /**\n * Add a view layer.\n *\n * @param {string} dataId The data id.\n * @param {ViewConfig} viewConfig The data view config.\n */\n #addViewLayer(dataId, viewConfig) {\n const data = this.#dataController.get(dataId);\n if (!data) {\n throw new Error('Cannot initialise layer with missing data, id: ' +\n dataId);\n }\n const layerGroup = this.#stage.getLayerGroupByDivId(viewConfig.divId);\n if (!layerGroup) {\n throw new Error('Cannot initialise layer with missing group, id: ' +\n viewConfig.divId);\n }\n const imageGeometry = data.image.getGeometry();\n\n // un-bind\n this.#stage.unbindLayerGroups();\n\n // create and setup view\n const viewFactory = new ViewFactory();\n const view = viewFactory.create(data.meta, data.image);\n const viewOrientation = getViewOrientation(\n imageGeometry.getOrientation(),\n getMatrixFromName(viewConfig.orientation)\n );\n view.setOrientation(viewOrientation);\n\n // make pixel of value 0 transparent for segmentation\n // (assuming RGB data)\n if (data.image.getMeta().Modality === 'SEG') {\n view.setAlphaFunction(function (value /*, index*/) {\n if (value[0] === 0 &&\n value[1] === 0 &&\n value[2] === 0) {\n return 0;\n } else {\n return 0xff;\n }\n });\n }\n\n // do we have more than one layer\n // (the layer has not been added to the layer group yet)\n const isBaseLayer = layerGroup.getNumberOfViewLayers() === 0;\n\n // opacity\n let opacity = 1;\n if (typeof viewConfig.opacity !== 'undefined') {\n opacity = viewConfig.opacity;\n } else {\n if (!isBaseLayer) {\n opacity = 0.5;\n }\n }\n\n // view layer\n const viewLayer = layerGroup.addViewLayer();\n viewLayer.setView(view, dataId);\n const size2D = imageGeometry.getSize(viewOrientation).get2D();\n const spacing2D = imageGeometry.getSpacing(viewOrientation).get2D();\n viewLayer.initialise(size2D, spacing2D, opacity);\n\n // view controller\n const viewController = viewLayer.getViewController();\n // window/level\n if (typeof viewConfig.wlPresetName !== 'undefined') {\n viewController.setWindowLevelPreset(viewConfig.wlPresetName);\n } else if (typeof viewConfig.windowCenter !== 'undefined' &&\n typeof viewConfig.windowWidth !== 'undefined') {\n const wl = new WindowLevel(\n viewConfig.windowCenter, viewConfig.windowWidth);\n viewController.setWindowLevel(wl);\n }\n // colour map\n if (typeof viewConfig.colourMap !== 'undefined') {\n viewController.setColourMap(viewConfig.colourMap);\n } else {\n if (!isBaseLayer) {\n if (data.image.getMeta().Modality === 'PT') {\n viewController.setColourMap('hot');\n } else {\n viewController.setColourMap('rainbow');\n }\n }\n }\n\n // listen to image set\n this.#dataController.addEventListener(\n 'dataimageset', viewLayer.onimageset);\n\n // sync layers position\n const value = [\n viewController.getCurrentIndex().getValues(),\n viewController.getCurrentPosition().getValues()\n ];\n layerGroup.updateLayersToPositionChange({\n value: value,\n srclayerid: viewLayer.getId()\n });\n\n // sync layer groups\n this.#stage.fitToContainer();\n\n // view layer offset (done before scale)\n viewLayer.setOffset(layerGroup.getOffset());\n\n // get and apply flip flags\n const flipFlags = this.#getViewFlipFlags(\n imageGeometry.getOrientation(),\n viewConfig.orientation);\n this.#applyFlipFlags(flipFlags, viewLayer);\n\n // layer scale (done after possible flip)\n if (!isBaseLayer) {\n // use zoom offset of base layer\n const baseViewLayer = layerGroup.getBaseViewLayer();\n viewLayer.initScale(\n layerGroup.getScale(),\n baseViewLayer.getAbsoluteZoomOffset()\n );\n } else {\n viewLayer.setScale(layerGroup.getScale());\n }\n\n // bind\n this.#stage.bindLayerGroups();\n if (this.#toolboxController) {\n this.#toolboxController.bindLayerGroup(layerGroup, viewLayer);\n }\n\n /**\n * Add view layer event.\n *\n * @event Application#viewlayeradd\n * @type {object}\n * @property {string} type The event type.\n */\n this.#fireEvent({\n type: 'viewlayeradd',\n layerid: viewLayer.getId(),\n layergroupid: layerGroup.getDivId(),\n dataid: dataId\n });\n\n // initialise the toolbox for base\n if (isBaseLayer) {\n if (this.#toolboxController) {\n this.#toolboxController.init();\n }\n }\n }\n\n /**\n * Add a draw layer.\n *\n * @param {string} dataId The data id.\n * @param {ViewConfig} viewConfig The data view config.\n */\n addDrawLayer(dataId, viewConfig) {\n const layerGroup = this.#stage.getLayerGroupByDivId(viewConfig.divId);\n if (!layerGroup) {\n throw new Error('Cannot initialise layer with missing group, id: ' +\n viewConfig.divId);\n }\n\n // reference is the data of the view layer with the\n // same StudyInstanceUID\n const data = this.#dataController.get(dataId);\n if (!data) {\n throw new Error('Cannot initialise layer with missing data, id: ' +\n dataId);\n }\n const studyInstanceUID =\n data.annotationGroup.getMetaValue('StudyInstanceUID');\n const viewLayers = layerGroup.searchViewLayers({\n StudyInstanceUID: studyInstanceUID\n });\n if (viewLayers.length === 0) {\n console.warn(\n 'No loaded data that matches the measurement study UID');\n return;\n }\n const refViewLayer = viewLayers[0];\n const refDataId = refViewLayer.getDataId();\n\n // set annotation view controller (allows quantification)\n const refViewController = refViewLayer.getViewController();\n data.annotationGroup.setViewController(refViewController);\n\n // reference data to use as base for layer properties\n const refData = this.#dataController.get(refDataId);\n if (!refData) {\n throw new Error(\n 'Cannot initialise layer with missing reference data, id: ' +\n refDataId);\n }\n const imageGeometry = refData.image.getGeometry();\n\n const viewOrientation = getViewOrientation(\n imageGeometry.getOrientation(),\n getMatrixFromName(viewConfig.orientation)\n );\n const size2D = imageGeometry.getSize(viewOrientation).get2D();\n const spacing2D = imageGeometry.getSpacing(viewOrientation).get2D();\n\n const drawLayer = layerGroup.addDrawLayer();\n drawLayer.initialise(size2D, spacing2D);\n\n const planeHelper = new PlaneHelper(\n imageGeometry.getRealSpacing(),\n imageGeometry.getOrientation(),\n viewOrientation\n );\n drawLayer.setPlaneHelper(planeHelper);\n\n // sync layer groups\n this.#stage.fitToContainer();\n\n // get and apply flip flags\n const flipFlags = this.#getViewFlipFlags(\n imageGeometry.getOrientation(),\n viewConfig.orientation);\n this.#applyFlipFlags(flipFlags, drawLayer);\n\n drawLayer.setScale(layerGroup.getScale());\n\n // add possible existing data\n drawLayer.setAnnotationGroup(\n data.annotationGroup,\n dataId,\n this.addToUndoStack);\n\n drawLayer.setCurrentPosition(\n refViewController.getCurrentPosition(),\n refViewController.getCurrentIndex()\n );\n\n /**\n * Add draw layer event.\n *\n * @event Application#drawlayeradd\n * @type {object}\n * @property {string} type The event type.\n */\n this.#fireEvent({\n type: 'drawlayeradd',\n layerid: drawLayer.getId(),\n layergroupid: layerGroup.getDivId(),\n dataid: dataId\n });\n }\n\n /**\n * Get the view flip flags: offset (x, y) and scale (x, y, z) flags.\n *\n * @param {Matrix33} imageOrientation The image orientation.\n * @param {string} viewConfigOrientation The view config orientation.\n * @returns {object} Offset and scale flip flags.\n */\n #getViewFlipFlags(imageOrientation, viewConfigOrientation) {\n // 'simple' orientation code (does not take into account angles)\n const orientationCode =\n getOrientationStringLPS(imageOrientation.asOneAndZeros());\n if (typeof orientationCode === 'undefined') {\n throw new Error('Unsupported undefined orientation code');\n }\n\n // view orientation flags\n const isViewUndefined = typeof viewConfigOrientation === 'undefined';\n const isViewAxial = !isViewUndefined &&\n viewConfigOrientation === Orientation.Axial;\n const isViewCoronal = !isViewUndefined &&\n viewConfigOrientation === Orientation.Coronal;\n const isViewSagittal = !isViewUndefined &&\n viewConfigOrientation === Orientation.Sagittal;\n\n // default flags\n const flipOffset = {\n x: false,\n y: false\n };\n const flipScale = {\n x: false,\n y: false,\n z: false\n };\n\n if (orientationCode === 'LPS') {\n // axial\n if (isViewCoronal || isViewSagittal) {\n flipScale.z = true;\n flipOffset.y = true;\n }\n } else if (orientationCode === 'LAI') {\n // axial\n if (isViewUndefined || isViewAxial) {\n flipOffset.y = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n } else if (isViewSagittal) {\n flipScale.z = true;\n flipOffset.x = true;\n }\n } else if (orientationCode === 'RPI') {\n // axial\n if (isViewUndefined || isViewAxial) {\n flipOffset.x = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n flipOffset.x = true;\n } else if (isViewSagittal) {\n flipScale.z = true;\n }\n } else if (orientationCode === 'RAS') {\n // axial\n flipOffset.x = true;\n flipOffset.y = true;\n if (isViewCoronal || isViewSagittal) {\n flipScale.z = true;\n }\n } else if (orientationCode === 'LSA') {\n // coronal\n flipOffset.y = true;\n if (isViewUndefined || isViewCoronal) {\n flipScale.z = true;\n } else if (isViewAxial) {\n flipScale.y = true;\n } else if (isViewSagittal) {\n flipOffset.x = true;\n flipScale.y = true;\n flipScale.z = true;\n }\n // } else if (orientationCode === 'LIP') { // nothing to do\n } else if (orientationCode === 'RSP') {\n // coronal\n if (isViewUndefined || isViewCoronal) {\n flipOffset.x = true;\n flipOffset.y = true;\n flipScale.x = true;\n flipScale.z = true;\n } else if (isViewAxial) {\n flipOffset.x = true;\n flipScale.x = true;\n } else if (isViewSagittal) {\n flipOffset.y = true;\n flipScale.z = true;\n }\n } else if (orientationCode === 'RIA') {\n // coronal\n flipOffset.x = true;\n if (isViewUndefined || isViewCoronal) {\n flipScale.x = true;\n } else if (isViewAxial) {\n flipOffset.y = true;\n flipScale.x = true;\n flipScale.y = true;\n } else if (isViewSagittal) {\n flipScale.y = true;\n }\n } else if (orientationCode === 'PSL') {\n // sagittal\n flipScale.z = true;\n if (isViewUndefined || isViewSagittal) {\n flipOffset.y = true;\n } else if (isViewCoronal) {\n flipOffset.y = true;\n }\n } else if (orientationCode === 'PIR') {\n // sagittal\n flipScale.z = true;\n if (isViewAxial || isViewCoronal) {\n flipOffset.x = true;\n }\n } else if (orientationCode === 'ASR') {\n // sagittal\n flipOffset.x = true;\n flipOffset.y = true;\n if (isViewUndefined || isViewSagittal) {\n flipScale.z = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n }\n } else if (orientationCode === 'AIL') {\n // sagittal\n if (isViewUndefined || isViewSagittal) {\n flipOffset.x = true;\n flipScale.z = true;\n } else if (isViewAxial) {\n flipOffset.y = true;\n } else if (isViewCoronal) {\n flipScale.z = true;\n }\n } else {\n logger.warn('Unsupported orientation code: ' +\n orientationCode + ', display could be incorrect');\n }\n\n return {\n scale: flipScale,\n offset: flipOffset\n };\n }\n\n #applyFlipFlags(flipFlags, layer) {\n if (flipFlags.offset.x) {\n layer.addFlipOffsetX();\n }\n if (flipFlags.offset.y) {\n layer.addFlipOffsetY();\n }\n if (flipFlags.scale.x) {\n layer.flipScaleX();\n }\n if (flipFlags.scale.y) {\n layer.flipScaleY();\n }\n if (flipFlags.scale.z) {\n layer.flipScaleZ();\n }\n }\n\n} // class App\n","import {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mask segment helper: helps handling the segments list,\n * but does *NOT* update the associated mask (use special commands\n * for that such as DeleteSegmentCommand, ChangeSegmentColourCommand...).\n */\nexport class MaskSegmentHelper {\n\n /**\n * The associated mask.\n *\n * @type {Image}\n */\n #mask;\n\n /**\n * The segments: array of segment description.\n *\n * @type {MaskSegment[]}\n */\n #segments;\n\n /**\n * @param {Image} mask The associated mask image.\n */\n constructor(mask) {\n this.#mask = mask;\n // check segments in meta\n const meta = mask.getMeta();\n if (typeof meta.custom === 'undefined') {\n meta.custom = {};\n }\n if (typeof meta.custom.segments === 'undefined') {\n meta.custom.segments = [];\n }\n this.#segments = meta.custom.segments;\n }\n\n /**\n * Find the index of a segment in the segments list.\n *\n * @param {number} segmentNumber The number to find.\n * @returns {number} The index in the segments list, -1 if not found.\n */\n #findSegmentIndex(segmentNumber) {\n return this.#segments.findIndex(function (item) {\n return item.number === segmentNumber;\n });\n }\n\n /**\n * Check if a segment is part of the segments list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {boolean} True if the segment is included.\n */\n hasSegment(segmentNumber) {\n return this.#findSegmentIndex(segmentNumber) !== -1;\n }\n\n /**\n * Check if a segment is present in a mask image.\n *\n * @param {number[]} numbers Array of segment numbers.\n * @returns {boolean[]} Array of boolean set to true\n * if the segment is present in the mask.\n */\n maskHasSegments(numbers) {\n // create values using displayValue\n const values = [];\n const unknowns = [];\n for (let i = 0; i < numbers.length; ++i) {\n const segment = this.getSegment(numbers[i]);\n if (typeof segment !== 'undefined') {\n if (typeof segment.displayValue !== 'undefined') {\n values.push(segment.displayValue);\n } else {\n values.push(segment.displayRGBValue);\n }\n } else {\n logger.warn('Unknown segment in maskHasSegments: ' + numbers[i]);\n unknowns.push(i);\n }\n }\n const res = this.#mask.hasValues(values);\n // insert unknowns as false in result\n for (let j = 0; j < unknowns.length; ++j) {\n res.splice(unknowns[j], 0, false);\n }\n return res;\n }\n\n /**\n * Get a segment from the inner segment list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {MaskSegment|undefined} The segment or undefined if not found.\n */\n getSegment(segmentNumber) {\n let segment;\n const index = this.#findSegmentIndex(segmentNumber);\n if (index !== -1) {\n segment = this.#segments[index];\n }\n return segment;\n }\n\n /**\n * Add a segment to the segments list.\n *\n * @param {MaskSegment} segment The segment to add.\n */\n addSegment(segment) {\n const index = this.#findSegmentIndex(segment.number);\n if (index === -1) {\n this.#segments.push(segment);\n } else {\n logger.warn(\n 'Not adding segment, it is allready in the segments list: ' +\n segment.number);\n }\n }\n\n /**\n * Remove a segment from the segments list.\n *\n * @param {number} segmentNumber The segment number.\n */\n removeSegment(segmentNumber) {\n const index = this.#findSegmentIndex(segmentNumber);\n if (index !== -1) {\n this.#segments.splice(index, 1);\n } else {\n logger.warn(\n 'Cannot remove segment, it is not in the segments list: ' +\n segmentNumber);\n }\n }\n\n /**\n * Update a segment of the segments list.\n *\n * @param {MaskSegment} segment The segment to update.\n */\n updateSegment(segment) {\n const index = this.#findSegmentIndex(segment.number);\n if (index !== -1) {\n this.#segments[index] = segment;\n } else {\n logger.warn(\n 'Cannot update segment, it is not in the segments list: ' +\n segment.number);\n }\n }\n\n} // class MaskSegmentHelper\n","import {MaskSegmentHelper} from './maskSegmentHelper';\nimport {BLACK} from '../utils/colour';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * Delete segment command.\n */\nexport class DeleteSegmentCommand {\n\n /**\n * The associated mask.\n *\n * @type {Image}\n */\n #mask;\n\n /**\n * The segment to remove.\n *\n * @type {MaskSegment}\n */\n #segment;\n\n /**\n * Flag to send creation events.\n *\n * @type {boolean}\n */\n #isSilent;\n\n /**\n * List of offsets.\n *\n * @type {number[]}\n */\n #offsets;\n\n /**\n * @param {Image} mask The mask image.\n * @param {MaskSegment} segment The segment to remove.\n * @param {boolean} [silent] Whether to send a creation event or not.\n */\n constructor(mask, segment, silent) {\n this.#mask = mask;\n this.#segment = segment;\n this.#isSilent = (typeof silent === 'undefined') ? false : silent;\n // list of offsets with the colour to delete\n if (typeof segment.displayRGBValue !== 'undefined') {\n this.#offsets = mask.getOffsets(segment.displayRGBValue);\n } else {\n this.#offsets = mask.getOffsets(segment.displayValue);\n }\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Delete-segment';\n }\n\n /**\n * Check if a command is valid and can be executed.\n *\n * @returns {boolean} True if the command is valid.\n */\n isValid() {\n const segments = this.#mask.getMeta().custom.segments;\n return segments.some(segmentItem =>\n segmentItem.number === this.#segment.number\n );\n }\n\n /**\n * Execute the command.\n *\n * @fires DeleteSegmentCommand#masksegmentdelete\n */\n execute() {\n if (this.#offsets.length !== 0) {\n // remove from image\n if (typeof this.#segment.displayRGBValue !== 'undefined') {\n this.#mask.setAtOffsets(this.#offsets, BLACK);\n } else {\n this.#mask.setAtOffsets(this.#offsets, 0);\n }\n }\n\n // remove from segments\n const segHelper = new MaskSegmentHelper(this.#mask);\n segHelper.removeSegment(this.#segment.number);\n\n // callback\n if (!this.#isSilent) {\n /**\n * Segment delete event.\n *\n * @event DeleteSegmentCommand#masksegmentdelete\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onExecute({\n type: 'masksegmentdelete',\n segmentnumber: this.#segment.number\n });\n }\n }\n\n /**\n * Undo the command.\n *\n * @fires DeleteSegmentCommand#masksegmentredraw\n */\n undo() {\n if (this.#offsets.length !== 0) {\n // re-draw in image\n if (typeof this.#segment.displayRGBValue !== 'undefined') {\n this.#mask.setAtOffsets(this.#offsets, this.#segment.displayRGBValue);\n } else {\n this.#mask.setAtOffsets(this.#offsets, this.#segment.displayValue);\n }\n }\n // add back to segments\n const segHelper = new MaskSegmentHelper(this.#mask);\n segHelper.addSegment(this.#segment);\n\n // callback\n /**\n * Segment redraw event.\n *\n * @event DeleteSegmentCommand#masksegmentredraw\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onUndo({\n type: 'masksegmentredraw',\n segmentnumber: this.#segment.number\n });\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // DeleteSegmentCommand class\n","// doc imports\n/* eslint-disable no-unused-vars */\nimport {Image} from './image';\nimport {MaskSegment} from '../dicom/dicomSegment';\nimport {RGB} from '../utils/colour';\n/* eslint-enable no-unused-vars */\n\n/**\n * Change segment colour command.\n */\nexport class ChangeSegmentColourCommand {\n\n /**\n * The associated mask.\n *\n * @type {Image}\n */\n #mask;\n\n /**\n * The segment to modify.\n *\n * @type {MaskSegment}\n */\n #segment;\n\n /**\n * The new segment colour.\n *\n * @type {RGB|number}\n */\n #newColour;\n\n /**\n * The previous segment colour.\n *\n * @type {RGB|number}\n */\n #previousColour;\n\n /**\n * Flag to send creation events.\n *\n * @type {boolean}\n */\n #isSilent;\n\n /**\n * List of offsets.\n *\n * @type {number[]}\n */\n #offsets;\n\n /**\n * @param {Image} mask The mask image.\n * @param {MaskSegment} segment The segment to modify.\n * @param {RGB|number} newColour The new segment colour.\n * @param {boolean} [silent] Whether to send a creation event or not.\n */\n constructor(mask, segment, newColour, silent) {\n this.#mask = mask;\n this.#segment = segment;\n this.#newColour = newColour;\n\n this.#isSilent = (typeof silent === 'undefined') ? false : silent;\n // list of offsets with the colour to delete\n if (typeof segment.displayRGBValue !== 'undefined') {\n this.#previousColour = segment.displayRGBValue;\n } else {\n this.#previousColour = segment.displayValue;\n }\n this.#offsets = mask.getOffsets(this.#previousColour);\n }\n\n /**\n * Get the command name.\n *\n * @returns {string} The command name.\n */\n getName() {\n return 'Change-segment-colour';\n }\n\n /**\n * Check if a command is valid and can be executed.\n *\n * @returns {boolean} True if the command is valid.\n */\n isValid() {\n return this.#offsets.length !== 0;\n }\n\n /**\n * Execute the command.\n *\n * @fires ChangeSegmentColourCommand#changemasksegmentcolour\n */\n execute() {\n // remove\n this.#mask.setAtOffsets(this.#offsets, this.#newColour);\n // update segment property\n if (typeof this.#newColour === 'number') {\n this.#segment.displayValue = this.#newColour;\n } else {\n this.#segment.displayRGBValue = this.#newColour;\n }\n\n // callback\n if (!this.#isSilent) {\n /**\n * Segment delete event.\n *\n * @event ChangeSegmentColourCommand#changemasksegmentcolour\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onExecute({\n type: 'changemasksegmentcolour',\n segmentnumber: this.#segment.number,\n value: [this.#newColour]\n });\n }\n }\n\n /**\n * Undo the command.\n *\n * @fires ChangeSegmentColourCommand#changemasksegmentcolour\n */\n undo() {\n // re-draw\n this.#mask.setAtOffsets(this.#offsets, this.#previousColour);\n // update segment property\n if (typeof this.#previousColour === 'number') {\n this.#segment.displayValue = this.#previousColour;\n } else {\n this.#segment.displayRGBValue = this.#previousColour;\n }\n\n // callback\n /**\n * Segment redraw event.\n *\n * @event ChangeSegmentColourCommand#changemasksegmentcolour\n * @type {object}\n * @property {number} segmentnumber The segment number.\n */\n this.onUndo({\n type: 'changemasksegmentcolour',\n segmentnumber: this.#segment.number,\n value: [this.#previousColour]\n });\n }\n\n /**\n * Handle an execute event.\n *\n * @param {object} _event The execute event with type and id.\n */\n onExecute(_event) {\n // default does nothing.\n }\n\n /**\n * Handle an undo event.\n *\n * @param {object} _event The undo event with type and id.\n */\n onUndo(_event) {\n // default does nothing.\n }\n\n} // ChangeSegmentColourCommand class\n","import {logger} from '../utils/logger';\n\n// doc imports\n/* eslint-disable no-unused-vars */\nimport {MaskSegment} from '../dicom/dicomSegment';\n/* eslint-enable no-unused-vars */\n\n/**\n * Mask segment view helper: handles hidden segments.\n */\nexport class MaskSegmentViewHelper {\n\n /**\n * List of hidden segments.\n *\n * @type {MaskSegment[]}\n */\n #hiddenSegments = [];\n\n #isMonochrome;\n\n /**\n * Get the index of a segment in the hidden list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {number} The index in the array, -1 if not found.\n */\n #findHiddenIndex(segmentNumber) {\n return this.#hiddenSegments.findIndex(function (item) {\n return item.number === segmentNumber;\n });\n }\n\n /**\n * Check if a segment is in the hidden list.\n *\n * @param {number} segmentNumber The segment number.\n * @returns {boolean} True if the segment is in the list.\n */\n isHidden(segmentNumber) {\n return this.#findHiddenIndex(segmentNumber) !== -1;\n }\n\n /**\n * Add a segment to the hidden list.\n *\n * @param {MaskSegment} segment The segment to add.\n */\n addToHidden(segment) {\n if (!this.isHidden(segment.number)) {\n this.#hiddenSegments.push(segment);\n // base flag on latest added\n this.#isMonochrome = typeof segment.displayValue !== 'undefined';\n } else {\n logger.warn(\n 'Not hidding segment, it is allready in the hidden list: ' +\n segment.number);\n }\n }\n\n /**\n * Remove a segment from the hidden list.\n *\n * @param {number} segmentNumber The segment number.\n */\n removeFromHidden(segmentNumber) {\n const index = this.#findHiddenIndex(segmentNumber);\n if (index !== -1) {\n this.#hiddenSegments.splice(index, 1);\n } else {\n logger.warn(\n 'Cannot remove segment, it is not in the hidden list: ' +\n segmentNumber);\n }\n }\n\n /**\n * @callback alphaFn\n * @param {number[]|number} value The pixel value.\n * @param {number} index The values' index.\n * @returns {number} The opacity of the input value.\n */\n\n /**\n * Get the alpha function to apply hidden colors.\n *\n * @returns {alphaFn} The corresponding alpha function.\n */\n getAlphaFunc() {\n // get colours\n const hiddenColours = [];\n if (this.#isMonochrome) {\n hiddenColours[0] = 0;\n } else {\n hiddenColours[0] = {r: 0, g: 0, b: 0};\n }\n for (const segment of this.#hiddenSegments) {\n if (this.#isMonochrome) {\n hiddenColours.push(segment.displayValue);\n } else {\n hiddenColours.push(segment.displayRGBValue);\n }\n }\n\n // create alpha function\n let resultFn;\n if (this.#isMonochrome) {\n resultFn = function (value/*, index*/) {\n for (let i = 0; i < hiddenColours.length; ++i) {\n if (value === hiddenColours[i]) {\n return 0;\n }\n }\n // default\n return 255;\n };\n } else {\n resultFn = function (value/*, index*/) {\n for (let i = 0; i < hiddenColours.length; ++i) {\n if (value[0] === hiddenColours[i].r &&\n value[1] === hiddenColours[i].g &&\n value[2] === hiddenColours[i].b) {\n return 0;\n }\n }\n // default\n return 255;\n };\n }\n return resultFn;\n }\n}","/**\n * Mutable 2D scalar ({x,y}).\n */\nexport class Scalar2D {\n /**\n * X value.\n *\n * @type {number}\n */\n x;\n\n /**\n * Y value.\n *\n * @type {number}\n */\n y;\n}\n\n/**\n * Mutable 3D scalar ({x,y,z}).\n */\nexport class Scalar3D {\n /**\n * X value.\n *\n * @type {number}\n */\n x;\n\n /**\n * Y value.\n *\n * @type {number}\n */\n y;\n\n /**\n * Z value.\n *\n * @type {number}\n */\n 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\ No newline at end of file diff --git a/package.json b/package.json index 4cb9b31ff1..d4240d6404 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "dwv", - "version": "0.34.0-beta.4", + "version": "0.34.0-beta.5", "description": "DICOM Web Viewer.", "keywords": [ "DICOM", diff --git a/resources/api/dwv.api.md b/resources/api/dwv.api.md index 350526b9bc..7cfcf3326a 100644 --- a/resources/api/dwv.api.md +++ b/resources/api/dwv.api.md @@ -17,6 +17,7 @@ export class Annotation { getFactory(): object; getOriginIndex(): Index | undefined; getText(): string; + getType(): string; id: string; labelPosition: Point2D; mathShape: object; @@ -55,11 +56,14 @@ export class AnnotationGroup { find(id: string): Annotation | undefined; getLength(): number; getList(): Annotation[]; - getMeta(key: string): object; + getMeta(): { + [x: string]: any; + }; + getMetaValue(key: string): object; hasMeta(key: string): boolean; remove(id: string): void; removeEventListener(type: string, callback: Function): void; - setMeta(key: string, value: object): void; + setMetaValue(key: string, value: object): void; setViewController(viewController: ViewController): void; update(annotation: Annotation): void; } @@ -386,7 +390,7 @@ export class DrawLayer { // @public export class DrawShapeHandler { - constructor(app: App); + constructor(app: App, eventCallback: Function); addShapeListeners(drawLayer: DrawLayer, shapeGroup: Konva.Group, annotation: Annotation): void; disableAndResetEditor(): void; getEditorAnnotation(): Annotation | undefined; @@ -1032,8 +1036,6 @@ export class ViewController { getPositionFromPlanePoint(point2D: Point2D): Point; getRescaledImageValue(position: Point): number | undefined; getScrollIndex(): number; - getSeriesInstanceUID(): string; - getStudyInstanceUID(): string; getWindowLevel(): WindowLevel; getWindowLevelPresetsNames(): string[]; incrementIndex(dim: number, silent?: boolean): boolean; diff --git a/resources/doc/jsdoc.conf.json b/resources/doc/jsdoc.conf.json index 2f704b9d7a..17665afe7a 100644 --- a/resources/doc/jsdoc.conf.json +++ b/resources/doc/jsdoc.conf.json @@ -25,7 +25,7 @@ "package": "package.json", "theme_opts": { "title": "DWV", - "footer": "Documentation generated for dwv v0.34.0-beta.4.", + "footer": "Documentation generated for dwv v0.34.0-beta.5.", "sections": [ "Tutorials", "Namespaces", @@ -50,7 +50,7 @@ "codepen": { "enable_for": ["examples"], "options": { - "js_external": "https://github.com/ivmartel/dwv/releases/download/v0.34.0-beta.4/dwv-0.34.0-beta.4.min.js", + "js_external": "https://github.com/ivmartel/dwv/releases/download/v0.34.0-beta.5/dwv-0.34.0-beta.5.min.js", "html": "
" } } diff --git a/src/dicom/dicomParser.js b/src/dicom/dicomParser.js index e4e16c5712..97d335eb87 100755 --- a/src/dicom/dicomParser.js +++ b/src/dicom/dicomParser.js @@ -34,7 +34,7 @@ import { * @returns {string} The version of the library. */ export function getDwvVersion() { - return '0.34.0-beta.4'; + return '0.34.0-beta.5'; } /**