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Please read it to get better comments on what's\n  // happening:\n  float pixelsThickness = max(normalLength, minThickness * u_sqrtZoomRatio);\n  float webGLThickness = pixelsThickness * u_correctionRatio;\n  float adaptedWebGLThickness = webGLThickness * u_sqrtZoomRatio;\n  float adaptedWebGLNodeRadius = a_radius * 2.0 * u_correctionRatio * u_sqrtZoomRatio;\n  float adaptedWebGLArrowHeadLength = adaptedWebGLThickness * 2.0 * arrowHeadLengthThicknessRatio;\n  float adaptedWebGLArrowHeadHalfWidth = adaptedWebGLArrowHeadLength * arrowHeadWidthLengthRatio / 2.0;\n\n  float da = a_barycentric.x;\n  float db = a_barycentric.y;\n  float dc = a_barycentric.z;\n\n  vec2 delta = vec2(\n      da * (adaptedWebGLNodeRadius * unitNormal.y)\n    + db * ((adaptedWebGLNodeRadius + adaptedWebGLArrowHeadLength) * unitNormal.y + adaptedWebGLArrowHeadHalfWidth * unitNormal.x)\n    + dc * ((adaptedWebGLNodeRadius + adaptedWebGLArrowHeadLength) * unitNormal.y - adaptedWebGLArrowHeadHalfWidth * unitNormal.x),\n\n      da * (-adaptedWebGLNodeRadius * unitNormal.x)\n    + db * (-(adaptedWebGLNodeRadius + adaptedWebGLArrowHeadLength) * unitNormal.x + adaptedWebGLArrowHeadHalfWidth * unitNormal.y)\n    + dc * (-(adaptedWebGLNodeRadius + adaptedWebGLArrowHeadLength) * unitNormal.x - adaptedWebGLArrowHeadHalfWidth * unitNormal.y)\n  );\n\n  vec2 position = (u_matrix * vec3(a_position + delta, 1)).xy;\n\n  gl_Position = vec4(position, 0, 1);\n\n  // Extract the color:\n  v_color = a_color;\n  v_color.a *= bias;\n}\n"},620:(t,e,r)=>{"use strict";r.r(e),r.d(e,{default:()=>i});const i="attribute vec4 a_color;\nattribute vec2 a_normal;\nattribute vec2 a_position;\nattribute float a_radius;\n\nuniform mat3 u_matrix;\nuniform float u_sqrtZoomRatio;\nuniform float u_correctionRatio;\n\nvarying vec4 v_color;\nvarying vec2 v_normal;\nvarying float v_thickness;\n\nconst float minThickness = 1.7;\nconst float bias = 255.0 / 254.0;\nconst float arrowHeadLengthThicknessRatio = 2.5;\n\nvoid main() {\n  float normalLength = length(a_normal);\n  vec2 unitNormal = a_normal / normalLength;\n\n  // These first computations are taken from edge.vert.glsl. 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So here\'s yet\n  // another thickness version:\n  v_thickness = webGLThickness / u_sqrtZoomRatio;\n\n  v_normal = unitNormal;\n  v_color = a_color;\n  v_color.a *= bias;\n}\n'},262:(t,e,r)=>{"use strict";r.r(e),r.d(e,{default:()=>i});const i="precision mediump float;\n\nvarying vec4 v_color;\nvarying float v_border;\n\nconst float radius = 0.5;\nconst vec4 transparent = vec4(0.0, 0.0, 0.0, 0.0);\n\nvoid main(void) {\n  vec2 m = gl_PointCoord - vec2(0.5, 0.5);\n  float dist = radius - length(m);\n\n  float t = 0.0;\n  if (dist > v_border)\n    t = 1.0;\n  else if (dist > 0.0)\n    t = dist / v_border;\n\n  gl_FragColor = mix(transparent, v_color, t);\n}\n"},106:(t,e,r)=>{"use strict";r.r(e),r.d(e,{default:()=>i});const i="attribute vec2 a_position;\nattribute float a_size;\nattribute vec4 a_color;\n\nuniform float u_ratio;\nuniform float u_scale;\nuniform mat3 u_matrix;\n\nvarying vec4 v_color;\nvarying float v_border;\n\nconst float bias = 255.0 / 254.0;\n\nvoid main() {\n  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s=t.measureText(e.label).width,h=Math.round(s+5),l=Math.round(i+4),c=Math.max(e.size,i/2)+2,u=Math.asin(l/2/c),d=Math.sqrt(Math.abs(Math.pow(c,2)-Math.pow(l/2,2)));t.beginPath(),t.moveTo(e.x+d,e.y+l/2),t.lineTo(e.x+c+h,e.y+l/2),t.lineTo(e.x+c+h,e.y-l/2),t.lineTo(e.x+d,e.y-l/2),t.arc(e.x,e.y,c,u,-u),t.closePath(),t.fill()}else t.beginPath(),t.arc(e.x,e.y,e.size+2,0,2*Math.PI),t.closePath(),t.fill();t.shadowOffsetX=0,t.shadowOffsetY=0,t.shadowBlur=0,(0,n.default)(t,e,r)}},622:(t,e)=>{"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.default=function(t,e,r){if(e.label){var i=r.labelSize,n=r.labelFont,o=r.labelWeight,a=r.labelColor.attribute?e[r.labelColor.attribute]||r.labelColor.color||"#000":r.labelColor.color;t.fillStyle=a,t.font="".concat(o," ").concat(i,"px ").concat(n),t.fillText(e.label,e.x+e.size+3,e.y+i/3)}}},195:function(t,e,r){"use strict";var i,n=this&&this.__extends||(i=function(t,e){return i=Object.setPrototypeOf||{__proto__:[]}instanceof 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t=this.gl;t.enableVertexAttribArray(this.positionLocation),t.enableVertexAttribArray(this.sizeLocation),t.enableVertexAttribArray(this.colorLocation),t.vertexAttribPointer(this.positionLocation,2,t.FLOAT,!1,this.attributes*Float32Array.BYTES_PER_ELEMENT,0),t.vertexAttribPointer(this.sizeLocation,1,t.FLOAT,!1,this.attributes*Float32Array.BYTES_PER_ELEMENT,8),t.vertexAttribPointer(this.colorLocation,4,t.UNSIGNED_BYTE,!0,this.attributes*Float32Array.BYTES_PER_ELEMENT,12)},e}(r(171).AbstractProgram);e.AbstractNodeProgram=o,e.createNodeCompoundProgram=function(t){return function(){function e(e,r){this.programs=t.map((function(t){return new t(e,r)}))}return e.prototype.bufferData=function(){this.programs.forEach((function(t){return t.bufferData()}))},e.prototype.allocate=function(t){this.programs.forEach((function(e){return 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t=this.gl;t.bufferData(t.ARRAY_BUFFER,this.array,t.DYNAMIC_DRAW)},t.prototype.allocate=function(t){this.array=new Float32Array(this.points*this.attributes*t)},t.prototype.hasNothingToRender=function(){return 0===this.array.length},t}();e.AbstractProgram=n},569:function(t,e,r){"use strict";var i=this&&this.__importDefault||function(t){return t&&t.__esModule?t:{default:t}};Object.defineProperty(e,"__esModule",{value:!0});var n=r(195),o=i(r(805)),a=i(r(483)),s=(0,n.createEdgeCompoundProgram)([a.default,o.default]);e.default=s},805:function(t,e,r){"use strict";var i,n=this&&this.__extends||(i=function(t,e){return i=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])},i(t,e)},function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Class extends value "+String(e)+" is not a constructor or null");function 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t=this.gl;t.enableVertexAttribArray(this.positionLocation),t.enableVertexAttribArray(this.normalLocation),t.enableVertexAttribArray(this.radiusLocation),t.enableVertexAttribArray(this.colorLocation),t.enableVertexAttribArray(this.barycentricLocation),t.vertexAttribPointer(this.positionLocation,2,t.FLOAT,!1,9*Float32Array.BYTES_PER_ELEMENT,0),t.vertexAttribPointer(this.normalLocation,2,t.FLOAT,!1,9*Float32Array.BYTES_PER_ELEMENT,8),t.vertexAttribPointer(this.radiusLocation,1,t.FLOAT,!1,9*Float32Array.BYTES_PER_ELEMENT,16),t.vertexAttribPointer(this.colorLocation,4,t.UNSIGNED_BYTE,!0,9*Float32Array.BYTES_PER_ELEMENT,20),t.vertexAttribPointer(this.barycentricLocation,3,t.FLOAT,!1,9*Float32Array.BYTES_PER_ELEMENT,24)},e.prototype.computeIndices=function(){},e.prototype.process=function(t,e,r,i,n){if(i)for(var o=27*n,s=o+27;o<s;o++)this.array[o]=0;else{var h=r.size||1,l=e.size||1,c=t.x,u=t.y,d=e.x,f=e.y,p=(0,a.floatColor)(r.color),g=d-c,v=f-u,m=g*g+v*v,y=0,b=0;m&&(y=-v*(m=1/Math.sqrt(m))*h,b=g*m*h);var _=27*n,x=this.array;x[_++]=d,x[_++]=f,x[_++]=-y,x[_++]=-b,x[_++]=l,x[_++]=p,x[_++]=1,x[_++]=0,x[_++]=0,x[_++]=d,x[_++]=f,x[_++]=-y,x[_++]=-b,x[_++]=l,x[_++]=p,x[_++]=0,x[_++]=1,x[_++]=0,x[_++]=d,x[_++]=f,x[_++]=-y,x[_++]=-b,x[_++]=l,x[_++]=p,x[_++]=0,x[_++]=0,x[_]=1}},e.prototype.render=function(t){if(!this.hasNothingToRender()){var e=this.gl,r=this.program;e.useProgram(r),e.uniformMatrix3fv(this.matrixLocation,!1,t.matrix),e.uniform1f(this.sqrtZoomRatioLocation,Math.sqrt(t.ratio)),e.uniform1f(this.correctionRatioLocation,t.correctionRatio),e.drawArrays(e.TRIANGLES,0,this.array.length/9)}},e}(r(195).AbstractEdgeProgram);e.default=l},483:function(t,e,r){"use strict";var i,n=this&&this.__extends||(i=function(t,e){return i=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var r in 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t=this.gl;t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,this.indicesBuffer),t.enableVertexAttribArray(this.positionLocation),t.enableVertexAttribArray(this.normalLocation),t.enableVertexAttribArray(this.colorLocation),t.enableVertexAttribArray(this.radiusLocation),t.vertexAttribPointer(this.positionLocation,2,t.FLOAT,!1,6*Float32Array.BYTES_PER_ELEMENT,0),t.vertexAttribPointer(this.normalLocation,2,t.FLOAT,!1,6*Float32Array.BYTES_PER_ELEMENT,8),t.vertexAttribPointer(this.colorLocation,4,t.UNSIGNED_BYTE,!0,6*Float32Array.BYTES_PER_ELEMENT,16),t.vertexAttribPointer(this.radiusLocation,1,t.FLOAT,!1,6*Float32Array.BYTES_PER_ELEMENT,20)},e.prototype.process=function(t,e,r,i,n){if(i)for(var o=24*n,a=o+24;o<a;o++)this.array[o]=0;else{var h=r.size||1,l=t.x,c=t.y,u=e.x,d=e.y,f=e.size||1,p=(0,s.floatColor)(r.color),g=u-l,v=d-c,m=g*g+v*v,y=0,b=0;m&&(y=-v*(m=1/Math.sqrt(m))*h,b=g*m*h);var _=24*n,x=this.array;x[_++]=l,x[_++]=c,x[_++]=y,x[_++]=b,x[_++]=p,x[_++]=0,x[_++]=l,x[_++]=c,x[_++]=-y,x[_++]=-b,x[_++]=p,x[_++]=0,x[_++]=u,x[_++]=d,x[_++]=y,x[_++]=b,x[_++]=p,x[_++]=f,x[_++]=u,x[_++]=d,x[_++]=-y,x[_++]=-b,x[_++]=p,x[_]=-f}},e.prototype.computeIndices=function(){for(var t=this.array.length/6,e=t+t/2,r=new this.IndicesArray(e),i=0,n=0;i<t;i+=4)r[n++]=i,r[n++]=i+1,r[n++]=i+2,r[n++]=i+2,r[n++]=i+1,r[n++]=i+3;this.indicesArray=r},e.prototype.bufferData=function(){t.prototype.bufferData.call(this);var e=this.gl;e.bufferData(e.ELEMENT_ARRAY_BUFFER,this.indicesArray,e.STATIC_DRAW)},e.prototype.render=function(t){if(!this.hasNothingToRender()){var e=this.gl,r=this.program;e.useProgram(r),e.uniformMatrix3fv(this.matrixLocation,!1,t.matrix),e.uniform1f(this.sqrtZoomRatioLocation,Math.sqrt(t.ratio)),e.uniform1f(this.correctionRatioLocation,t.correctionRatio),e.drawElements(e.TRIANGLES,this.indicesArray.length,this.indicesType,0)}},e}(a.AbstractEdgeProgram);e.default=c},753:function(t,e,r){"use strict";var i,n=this&&this.__extends||(i=function(t,e){return i=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])},i(t,e)},function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Class extends value "+String(e)+" is not a constructor or null");function r(){this.constructor=t}i(t,e),t.prototype=null===e?Object.create(e):(r.prototype=e.prototype,new r)}),o=this&&this.__importDefault||function(t){return t&&t.__esModule?t:{default:t}};Object.defineProperty(e,"__esModule",{value:!0});var a=r(928),s=o(r(223)),h=o(r(498)),l=function(t){function e(e){var r=t.call(this,e,s.default,h.default,4,5)||this,i=e.createBuffer();if(null===i)throw new Error("EdgeProgram: error while creating indicesBuffer");r.indicesBuffer=i,r.positionLocation=e.getAttribLocation(r.program,"a_position"),r.colorLocation=e.getAttribLocation(r.program,"a_color"),r.normalLocation=e.getAttribLocation(r.program,"a_normal");var n=e.getUniformLocation(r.program,"u_matrix");if(null===n)throw new Error("EdgeProgram: error while getting matrixLocation");r.matrixLocation=n;var o=e.getUniformLocation(r.program,"u_correctionRatio");if(null===o)throw new Error("EdgeProgram: error while getting correctionRatioLocation");r.correctionRatioLocation=o;var l=e.getUniformLocation(r.program,"u_sqrtZoomRatio");if(null===l)throw new Error("EdgeProgram: error while getting sqrtZoomRatioLocation");return r.sqrtZoomRatioLocation=l,r.canUse32BitsIndices=(0,a.canUse32BitsIndices)(e),r.IndicesArray=r.canUse32BitsIndices?Uint32Array:Uint16Array,r.indicesArray=new r.IndicesArray,r.indicesType=r.canUse32BitsIndices?e.UNSIGNED_INT:e.UNSIGNED_SHORT,r.bind(),r}return n(e,t),e.prototype.bind=function(){var t=this.gl;t.bindBuffer(t.ELEMENT_ARRAY_BUFFER,this.indicesBuffer),t.enableVertexAttribArray(this.positionLocation),t.enableVertexAttribArray(this.normalLocation),t.enableVertexAttribArray(this.colorLocation),t.vertexAttribPointer(this.positionLocation,2,t.FLOAT,!1,5*Float32Array.BYTES_PER_ELEMENT,0),t.vertexAttribPointer(this.normalLocation,2,t.FLOAT,!1,5*Float32Array.BYTES_PER_ELEMENT,8),t.vertexAttribPointer(this.colorLocation,4,t.UNSIGNED_BYTE,!0,5*Float32Array.BYTES_PER_ELEMENT,16)},e.prototype.computeIndices=function(){for(var t=this.array.length/5,e=t+t/2,r=new this.IndicesArray(e),i=0,n=0;i<t;i+=4)r[n++]=i,r[n++]=i+1,r[n++]=i+2,r[n++]=i+2,r[n++]=i+1,r[n++]=i+3;this.indicesArray=r},e.prototype.bufferData=function(){t.prototype.bufferData.call(this);var e=this.gl;e.bufferData(e.ELEMENT_ARRAY_BUFFER,this.indicesArray,e.STATIC_DRAW)},e.prototype.process=function(t,e,r,i,n){if(i)for(var o=20*n,s=o+20;o<s;o++)this.array[o]=0;else{var h=r.size||1,l=t.x,c=t.y,u=e.x,d=e.y,f=(0,a.floatColor)(r.color),p=u-l,g=d-c,v=p*p+g*g,m=0,y=0;v&&(m=-g*(v=1/Math.sqrt(v))*h,y=p*v*h);var b=20*n,_=this.array;_[b++]=l,_[b++]=c,_[b++]=m,_[b++]=y,_[b++]=f,_[b++]=l,_[b++]=c,_[b++]=-m,_[b++]=-y,_[b++]=f,_[b++]=u,_[b++]=d,_[b++]=m,_[b++]=y,_[b++]=f,_[b++]=u,_[b++]=d,_[b++]=-m,_[b++]=-y,_[b]=f}},e.prototype.render=function(t){if(!this.hasNothingToRender()){var e=this.gl,r=this.program;e.useProgram(r),e.uniformMatrix3fv(this.matrixLocation,!1,t.matrix),e.uniform1f(this.sqrtZoomRatioLocation,Math.sqrt(t.ratio)),e.uniform1f(this.correctionRatioLocation,t.correctionRatio),e.drawElements(e.TRIANGLES,this.indicesArray.length,this.indicesType,0)}},e}(r(195).AbstractEdgeProgram);e.default=l},582:function(t,e,r){"use strict";var i,n=this&&this.__extends||(i=function(t,e){return i=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])},i(t,e)},function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Class extends value "+String(e)+" is not a constructor or null");function r(){this.constructor=t}i(t,e),t.prototype=null===e?Object.create(e):(r.prototype=e.prototype,new r)}),o=this&&this.__importDefault||function(t){return t&&t.__esModule?t:{default:t}};Object.defineProperty(e,"__esModule",{value:!0});var a=r(928),s=o(r(106)),h=o(r(262)),l=function(t){function e(e){var r=t.call(this,e,s.default,h.default,1,4)||this;return r.bind(),r}return n(e,t),e.prototype.process=function(t,e,r){var i=this.array,n=1*r*4;if(e)return i[n++]=0,i[n++]=0,i[n++]=0,void(i[n++]=0);var o=(0,a.floatColor)(t.color);i[n++]=t.x,i[n++]=t.y,i[n++]=t.size,i[n]=o},e.prototype.render=function(t){if(!this.hasNothingToRender()){var e=this.gl,r=this.program;e.useProgram(r),e.uniform1f(this.ratioLocation,1/Math.sqrt(t.ratio)),e.uniform1f(this.scaleLocation,t.scalingRatio),e.uniformMatrix3fv(this.matrixLocation,!1,t.matrix),e.drawArrays(e.POINTS,0,this.array.length/4)}},e}(r(909).AbstractNodeProgram);e.default=l},706:(t,e)=>{"use strict";function r(t,e,r){var i="VERTEX"===t?e.VERTEX_SHADER:e.FRAGMENT_SHADER,n=e.createShader(i);if(null===n)throw new Error("loadShader: error while creating the shader");if(e.shaderSource(n,r),e.compileShader(n),!e.getShaderParameter(n,e.COMPILE_STATUS)){var o=e.getShaderInfoLog(n);throw e.deleteShader(n),new Error("loadShader: error while compiling the shader:\n".concat(o,"\n").concat(r))}return n}Object.defineProperty(e,"__esModule",{value:!0}),e.loadProgram=e.loadFragmentShader=e.loadVertexShader=void 0,e.loadVertexShader=function(t,e){return r("VERTEX",t,e)},e.loadFragmentShader=function(t,e){return r("FRAGMENT",t,e)},e.loadProgram=function(t,e){var r,i,n=t.createProgram();if(null===n)throw new Error("loadProgram: error while creating the program.");for(r=0,i=e.length;r<i;r++)t.attachShader(n,e[r]);if(t.linkProgram(n),!t.getProgramParameter(n,t.LINK_STATUS))throw t.deleteProgram(n),new Error("loadProgram: error while linking the program.");return n}},310:function(t,e,r){"use strict";var i=this&&this.__importDefault||function(t){return t&&t.__esModule?t:{default:t}};Object.defineProperty(e,"__esModule",{value:!0}),e.resolveSettings=e.validateSettings=e.DEFAULT_EDGE_PROGRAM_CLASSES=e.DEFAULT_NODE_PROGRAM_CLASSES=e.DEFAULT_SETTINGS=void 0;var n=r(928),o=i(r(622)),a=i(r(61)),s=i(r(942)),h=i(r(582)),l=i(r(753)),c=i(r(569));e.DEFAULT_SETTINGS={hideEdgesOnMove:!1,hideLabelsOnMove:!1,renderLabels:!0,renderEdgeLabels:!1,enableEdgeClickEvents:!1,enableEdgeWheelEvents:!1,enableEdgeHoverEvents:!1,defaultNodeColor:"#999",defaultNodeType:"circle",defaultEdgeColor:"#ccc",defaultEdgeType:"line",labelFont:"Arial",labelSize:14,labelWeight:"normal",labelColor:{color:"#000"},edgeLabelFont:"Arial",edgeLabelSize:14,edgeLabelWeight:"normal",edgeLabelColor:{attribute:"color"},stagePadding:30,labelDensity:1,labelGridCellSize:100,labelRenderedSizeThreshold:6,nodeReducer:null,edgeReducer:null,zIndex:!1,minCameraRatio:null,maxCameraRatio:null,labelRenderer:o.default,hoverRenderer:a.default,edgeLabelRenderer:s.default,allowInvalidContainer:!1,nodeProgramClasses:{},nodeHoverProgramClasses:{},edgeProgramClasses:{}},e.DEFAULT_NODE_PROGRAM_CLASSES={circle:h.default},e.DEFAULT_EDGE_PROGRAM_CLASSES={arrow:c.default,line:l.default},e.validateSettings=function(t){if("number"!=typeof t.labelDensity||t.labelDensity<0)throw new Error("Settings: invalid `labelDensity`. Expecting a positive number.");var e=t.minCameraRatio,r=t.maxCameraRatio;if("number"==typeof e&&"number"==typeof r&&r<e)throw new Error("Settings: invalid camera ratio boundaries. Expecting `maxCameraRatio` to be greater than `minCameraRatio`.")},e.resolveSettings=function(t){var r=(0,n.assign)({},e.DEFAULT_SETTINGS,t);return r.nodeProgramClasses=(0,n.assign)({},e.DEFAULT_NODE_PROGRAM_CLASSES,r.nodeProgramClasses),r.edgeProgramClasses=(0,n.assign)({},e.DEFAULT_EDGE_PROGRAM_CLASSES,r.edgeProgramClasses),r}},159:function(t,e,r){"use strict";var i,n=this&&this.__extends||(i=function(t,e){return i=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])},i(t,e)},function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Class extends value "+String(e)+" is not a constructor or null");function r(){this.constructor=t}i(t,e),t.prototype=null===e?Object.create(e):(r.prototype=e.prototype,new r)}),o=this&&this.__assign||function(){return o=Object.assign||function(t){for(var e,r=1,i=arguments.length;r<i;r++)for(var n in e=arguments[r])Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n]);return t},o.apply(this,arguments)},a=this&&this.__values||function(t){var e="function"==typeof Symbol&&Symbol.iterator,r=e&&t[e],i=0;if(r)return r.call(t);if(t&&"number"==typeof t.length)return{next:function(){return t&&i>=t.length&&(t=void 0),{value:t&&t[i++],done:!t}}};throw new TypeError(e?"Object is not iterable.":"Symbol.iterator is not defined.")},s=this&&this.__importDefault||function(t){return t&&t.__esModule?t:{default:t}};Object.defineProperty(e,"__esModule",{value:!0});var h=s(r(796)),l=s(r(764)),c=s(r(269)),u=s(r(134)),d=r(699),f=r(928),p=r(730),g=r(310),v=s(r(508)),m=r(700),y=r(628);function b(t,e,r){if(!r.hasOwnProperty("x")||!r.hasOwnProperty("y"))throw new Error('Sigma: could not find a valid position (x, y) for node "'.concat(e,'". All your nodes must have a number "x" and "y". Maybe your forgot to apply a layout or your "nodeReducer" is not returning the correct data?'));return r.color||(r.color=t.defaultNodeColor),r.label||""===r.label||(r.label=null),void 0!==r.label&&null!==r.label?r.label=""+r.label:r.label=null,r.size||(r.size=2),r.hasOwnProperty("hidden")||(r.hidden=!1),r.hasOwnProperty("highlighted")||(r.highlighted=!1),r.hasOwnProperty("forceLabel")||(r.forceLabel=!1),r.type&&""!==r.type||(r.type=t.defaultNodeType),r.zIndex||(r.zIndex=0),r}function _(t,e,r){return r.color||(r.color=t.defaultEdgeColor),r.label||(r.label=""),r.size||(r.size=.5),r.hasOwnProperty("hidden")||(r.hidden=!1),r.hasOwnProperty("forceLabel")||(r.forceLabel=!1),r.type&&""!==r.type||(r.type=t.defaultEdgeType),r.zIndex||(r.zIndex=0),r}var x=function(t){function e(e,r,i){void 0===i&&(i={});var n=t.call(this)||this;if(n.elements={},n.canvasContexts={},n.webGLContexts={},n.activeListeners={},n.quadtree=new u.default,n.labelGrid=new p.LabelGrid,n.nodeDataCache={},n.edgeDataCache={},n.nodesWithForcedLabels=[],n.edgesWithForcedLabels=[],n.nodeExtent={x:[0,1],y:[0,1]},n.matrix=(0,m.identity)(),n.invMatrix=(0,m.identity)(),n.correctionRatio=1,n.customBBox=null,n.normalizationFunction=(0,f.createNormalizationFunction)({x:[0,1],y:[0,1]}),n.cameraSizeRatio=1,n.width=0,n.height=0,n.pixelRatio=(0,f.getPixelRatio)(),n.displayedLabels=new Set,n.highlightedNodes=new Set,n.hoveredNode=null,n.hoveredEdge=null,n.renderFrame=null,n.renderHighlightedNodesFrame=null,n.needToProcess=!1,n.needToSoftProcess=!1,n.checkEdgesEventsFrame=null,n.nodePrograms={},n.nodeHoverPrograms={},n.edgePrograms={},n.settings=(0,g.resolveSettings)(i),(0,g.validateSettings)(n.settings),(0,f.validateGraph)(e),!(r instanceof HTMLElement))throw new Error("Sigma: container should be an html element.");for(var o in n.graph=e,n.container=r,n.createWebGLContext("edges",{preserveDrawingBuffer:!0}),n.createCanvasContext("edgeLabels"),n.createWebGLContext("nodes"),n.createCanvasContext("labels"),n.createCanvasContext("hovers"),n.createWebGLContext("hoverNodes"),n.createCanvasContext("mouse"),n.webGLContexts){var a=n.webGLContexts[o];a.blendFunc(a.ONE,a.ONE_MINUS_SRC_ALPHA),a.enable(a.BLEND)}for(var s in n.settings.nodeProgramClasses){var h=n.settings.nodeProgramClasses[s];n.nodePrograms[s]=new h(n.webGLContexts.nodes,n);var d=h;s in n.settings.nodeHoverProgramClasses&&(d=n.settings.nodeHoverProgramClasses[s]),n.nodeHoverPrograms[s]=new d(n.webGLContexts.hoverNodes,n)}for(var s in n.settings.edgeProgramClasses){var y=n.settings.edgeProgramClasses[s];n.edgePrograms[s]=new y(n.webGLContexts.edges,n)}return n.resize(),n.camera=new l.default,n.bindCameraHandlers(),n.mouseCaptor=new c.default(n.elements.mouse,n),n.touchCaptor=new v.default(n.elements.mouse,n),n.bindEventHandlers(),n.bindGraphHandlers(),n.handleSettingsUpdate(),n.process(),n.render(),n}return n(e,t),e.prototype.createCanvas=function(t){var e=(0,f.createElement)("canvas",{position:"absolute"},{class:"sigma-".concat(t)});return this.elements[t]=e,this.container.appendChild(e),e},e.prototype.createCanvasContext=function(t){var e=this.createCanvas(t);return this.canvasContexts[t]=e.getContext("2d",{preserveDrawingBuffer:!1,antialias:!1}),this},e.prototype.createWebGLContext=function(t,e){var r,i=this.createCanvas(t),n=o({preserveDrawingBuffer:!1,antialias:!1},e||{});return(r=i.getContext("webgl2",n))||(r=i.getContext("webgl",n)),r||(r=i.getContext("experimental-webgl",n)),this.webGLContexts[t]=r,this},e.prototype.bindCameraHandlers=function(){var t=this;return this.activeListeners.camera=function(){t._scheduleRefresh()},this.camera.on("updated",this.activeListeners.camera),this},e.prototype.mouseIsOnNode=function(t,e,r){var i=t.x,n=t.y,o=e.x,a=e.y;return i>o-r&&i<o+r&&n>a-r&&n<a+r&&Math.sqrt(Math.pow(i-o,2)+Math.pow(n-a,2))<r},e.prototype.getQuadNodes=function(t){var e=this.viewportToFramedGraph(t);return this.quadtree.point(e.x,1-e.y)},e.prototype.getNodeAtPosition=function(t){for(var e=t.x,r=t.y,i=this.getQuadNodes(t),n=1/0,o=null,a=0,s=i.length;a<s;a++){var h=i[a],l=this.nodeDataCache[h],c=this.framedGraphToViewport(l),u=this.scaleSize(l.size);if(!l.hidden&&this.mouseIsOnNode(t,c,u)){var d=Math.sqrt(Math.pow(e-c.x,2)+Math.pow(r-c.y,2));d<n&&(n=d,o=h)}}return o},e.prototype.bindEventHandlers=function(){var t=this;this.activeListeners.handleResize=function(){t.needToSoftProcess=!0,t._scheduleRefresh()},window.addEventListener("resize",this.activeListeners.handleResize),this.activeListeners.handleMove=function(e){var r={event:e,preventSigmaDefault:function(){e.preventSigmaDefault()}},i=t.getNodeAtPosition(e);if(i&&t.hoveredNode!==i&&!t.nodeDataCache[i].hidden)return t.hoveredNode&&t.emit("leaveNode",o(o({},r),{node:t.hoveredNode})),t.hoveredNode=i,t.emit("enterNode",o(o({},r),{node:i})),void t.scheduleHighlightedNodesRender();if(t.hoveredNode){var n=t.nodeDataCache[t.hoveredNode],a=t.framedGraphToViewport(n),s=t.scaleSize(n.size);if(!t.mouseIsOnNode(e,a,s)){var h=t.hoveredNode;return t.hoveredNode=null,t.emit("leaveNode",o(o({},r),{node:h})),void t.scheduleHighlightedNodesRender()}}!0===t.settings.enableEdgeHoverEvents?t.checkEdgeHoverEvents(r):"debounce"===t.settings.enableEdgeHoverEvents&&(t.checkEdgesEventsFrame||(t.checkEdgesEventsFrame=(0,f.requestFrame)((function(){t.checkEdgeHoverEvents(r),t.checkEdgesEventsFrame=null}))))};var e=function(e){return function(r){var i={event:r,preventSigmaDefault:function(){r.preventSigmaDefault()}},n=r.original.isFakeSigmaMouseEvent?t.getNodeAtPosition(r):t.hoveredNode;if(n)return t.emit("".concat(e,"Node"),o(o({},i),{node:n}));if("wheel"===e?t.settings.enableEdgeWheelEvents:t.settings.enableEdgeClickEvents){var a=t.getEdgeAtPoint(r.x,r.y);if(a)return t.emit("".concat(e,"Edge"),o(o({},i),{edge:a}))}return t.emit("".concat(e,"Stage"),i)}};return this.activeListeners.handleClick=e("click"),this.activeListeners.handleRightClick=e("rightClick"),this.activeListeners.handleDoubleClick=e("doubleClick"),this.activeListeners.handleWheel=e("wheel"),this.activeListeners.handleDown=e("down"),this.mouseCaptor.on("mousemove",this.activeListeners.handleMove),this.mouseCaptor.on("click",this.activeListeners.handleClick),this.mouseCaptor.on("rightClick",this.activeListeners.handleRightClick),this.mouseCaptor.on("doubleClick",this.activeListeners.handleDoubleClick),this.mouseCaptor.on("wheel",this.activeListeners.handleWheel),this.mouseCaptor.on("mousedown",this.activeListeners.handleDown),this},e.prototype.bindGraphHandlers=function(){var t=this,e=this.graph;return this.activeListeners.graphUpdate=function(){t.needToProcess=!0,t._scheduleRefresh()},this.activeListeners.softGraphUpdate=function(){t.needToSoftProcess=!0,t._scheduleRefresh()},this.activeListeners.dropNodeGraphUpdate=function(e){delete t.nodeDataCache[e.key],t.hoveredNode===e.key&&(t.hoveredNode=null),t.activeListeners.graphUpdate()},this.activeListeners.dropEdgeGraphUpdate=function(e){delete t.edgeDataCache[e.key],t.hoveredEdge===e.key&&(t.hoveredEdge=null),t.activeListeners.graphUpdate()},this.activeListeners.clearEdgesGraphUpdate=function(){t.edgeDataCache={},t.hoveredEdge=null,t.activeListeners.graphUpdate()},this.activeListeners.clearGraphUpdate=function(){t.nodeDataCache={},t.hoveredNode=null,t.activeListeners.clearEdgesGraphUpdate()},e.on("nodeAdded",this.activeListeners.graphUpdate),e.on("nodeDropped",this.activeListeners.dropNodeGraphUpdate),e.on("nodeAttributesUpdated",this.activeListeners.softGraphUpdate),e.on("eachNodeAttributesUpdated",this.activeListeners.graphUpdate),e.on("edgeAdded",this.activeListeners.graphUpdate),e.on("edgeDropped",this.activeListeners.dropEdgeGraphUpdate),e.on("edgeAttributesUpdated",this.activeListeners.softGraphUpdate),e.on("eachEdgeAttributesUpdated",this.activeListeners.graphUpdate),e.on("edgesCleared",this.activeListeners.clearEdgesGraphUpdate),e.on("cleared",this.activeListeners.clearGraphUpdate),this},e.prototype.unbindGraphHandlers=function(){var t=this.graph;t.removeListener("nodeAdded",this.activeListeners.graphUpdate),t.removeListener("nodeDropped",this.activeListeners.dropNodeGraphUpdate),t.removeListener("nodeAttributesUpdated",this.activeListeners.softGraphUpdate),t.removeListener("eachNodeAttributesUpdated",this.activeListeners.graphUpdate),t.removeListener("edgeAdded",this.activeListeners.graphUpdate),t.removeListener("edgeDropped",this.activeListeners.dropEdgeGraphUpdate),t.removeListener("edgeAttributesUpdated",this.activeListeners.softGraphUpdate),t.removeListener("eachEdgeAttributesUpdated",this.activeListeners.graphUpdate),t.removeListener("edgesCleared",this.activeListeners.clearEdgesGraphUpdate),t.removeListener("cleared",this.activeListeners.clearGraphUpdate)},e.prototype.checkEdgeHoverEvents=function(t){var e=this.hoveredNode?null:this.getEdgeAtPoint(t.event.x,t.event.y);return e!==this.hoveredEdge&&(this.hoveredEdge&&this.emit("leaveEdge",o(o({},t),{edge:this.hoveredEdge})),e&&this.emit("enterEdge",o(o({},t),{edge:e})),this.hoveredEdge=e),this},e.prototype.getEdgeAtPoint=function(t,e){var r,i,n=this,o=this.edgeDataCache,s=this.nodeDataCache;if(!(0,y.isPixelColored)(this.webGLContexts.edges,t*this.pixelRatio,e*this.pixelRatio))return null;var h=this.viewportToGraph({x:t,y:e}),l=h.x,c=h.y,u=0;if(this.graph.someEdge((function(t,e,r,i,a,h){var l=a.x,c=a.y,d=h.x,f=h.y;if(o[t].hidden||s[r].hidden||s[i].hidden)return!1;if(l!==d||c!==f){var p=Math.sqrt(Math.pow(d-l,2)+Math.pow(f-c,2)),g=n.graphToViewport({x:l,y:c}),v=g.x,m=g.y,y=n.graphToViewport({x:d,y:f}),b=y.x,_=y.y,x=Math.sqrt(Math.pow(b-v,2)+Math.pow(_-m,2));return u=p/x,!0}})),!u)return null;var d=this.graph.filterEdges((function(t,e,r,i,a,h){return!(o[t].hidden||s[r].hidden||s[i].hidden)&&(!!(0,y.doEdgeCollideWithPoint)(l,c,a.x,a.y,h.x,h.y,o[t].size*u/n.cameraSizeRatio)||void 0)}));if(0===d.length)return null;var f=d[d.length-1],p=-1/0;try{for(var g=a(d),v=g.next();!v.done;v=g.next()){var m=v.value,b=this.graph.getEdgeAttribute(m,"zIndex");b>=p&&(f=m,p=b)}}catch(t){r={error:t}}finally{try{v&&!v.done&&(i=g.return)&&i.call(g)}finally{if(r)throw r.error}}return f},e.prototype.process=function(t){var e=this;void 0===t&&(t=!1);var r=this.graph,i=this.settings,n=this.getDimensions(),o=[1/0,-1/0],a=[1/0,-1/0];this.quadtree.clear(),this.labelGrid.resizeAndClear(n,i.labelGridCellSize),this.highlightedNodes=new Set,this.nodeExtent=(0,f.graphExtent)(r),this.nodesWithForcedLabels=[],this.edgesWithForcedLabels=[];var s=new l.default,h=(0,f.matrixFromCamera)(s.getState(),this.getDimensions(),this.getGraphDimensions(),this.getSetting("stagePadding")||0);this.normalizationFunction=(0,f.createNormalizationFunction)(this.customBBox||this.nodeExtent);for(var c={},u=r.nodes(),d=0,p=u.length;d<p;d++){var g=u[d],v=Object.assign({},r.getNodeAttributes(g));i.nodeReducer&&(v=i.nodeReducer(g,v)),c[(y=b(this.settings,g,v)).type]=(c[y.type]||0)+1,this.nodeDataCache[g]=y,this.normalizationFunction.applyTo(y),y.forceLabel&&this.nodesWithForcedLabels.push(g),this.settings.zIndex&&(y.zIndex<o[0]&&(o[0]=y.zIndex),y.zIndex>o[1]&&(o[1]=y.zIndex))}for(var m in this.nodePrograms){if(!this.nodePrograms.hasOwnProperty(m))throw new Error('Sigma: could not find a suitable program for node type "'.concat(m,'"!'));t||this.nodePrograms[m].allocate(c[m]||0),c[m]=0}for(this.settings.zIndex&&o[0]!==o[1]&&(u=(0,f.zIndexOrdering)(o,(function(t){return e.nodeDataCache[t].zIndex}),u)),d=0,p=u.length;d<p;d++){g=u[d];var y=this.nodeDataCache[g];this.quadtree.add(g,y.x,1-y.y,y.size/this.width),"string"!=typeof y.label||y.hidden||this.labelGrid.add(g,y.size,this.framedGraphToViewport(y,{matrix:h}));var x=this.nodePrograms[y.type];if(!x)throw new Error('Sigma: could not find a suitable program for node type "'.concat(y.type,'"!'));x.process(y,y.hidden,c[y.type]++),y.highlighted&&!y.hidden&&this.highlightedNodes.add(g)}this.labelGrid.organize();var w={},E=r.edges();for(d=0,p=E.length;d<p;d++){var L=E[d];v=Object.assign({},r.getEdgeAttributes(L)),i.edgeReducer&&(v=i.edgeReducer(L,v)),w[(y=_(this.settings,0,v)).type]=(w[y.type]||0)+1,this.edgeDataCache[L]=y,y.forceLabel&&!y.hidden&&this.edgesWithForcedLabels.push(L),this.settings.zIndex&&(y.zIndex<a[0]&&(a[0]=y.zIndex),y.zIndex>a[1]&&(a[1]=y.zIndex))}for(var m in this.edgePrograms){if(!this.edgePrograms.hasOwnProperty(m))throw new Error('Sigma: could not find a suitable program for edge type "'.concat(m,'"!'));t||this.edgePrograms[m].allocate(w[m]||0),w[m]=0}for(this.settings.zIndex&&a[0]!==a[1]&&(E=(0,f.zIndexOrdering)(a,(function(t){return e.edgeDataCache[t].zIndex}),E)),d=0,p=E.length;d<p;d++){L=E[d],y=this.edgeDataCache[L];var F=r.extremities(L),C=this.nodeDataCache[F[0]],A=this.nodeDataCache[F[1]],T=y.hidden||C.hidden||A.hidden;this.edgePrograms[y.type].process(C,A,y,T,w[y.type]++)}for(var m in this.edgePrograms){var P=this.edgePrograms[m];t||"function"!=typeof P.computeIndices||P.computeIndices()}return this},e.prototype.handleSettingsUpdate=function(){return this.camera.minRatio=this.settings.minCameraRatio,this.camera.maxRatio=this.settings.maxCameraRatio,this.camera.setState(this.camera.validateState(this.camera.getState())),this},e.prototype._refresh=function(){return this.needToProcess?this.process():this.needToSoftProcess&&this.process(!0),this.needToProcess=!1,this.needToSoftProcess=!1,this.render(),this},e.prototype._scheduleRefresh=function(){var t=this;return this.renderFrame||(this.renderFrame=(0,f.requestFrame)((function(){t._refresh(),t.renderFrame=null}))),this},e.prototype.renderLabels=function(){if(!this.settings.renderLabels)return this;var t=this.camera.getState(),e=this.labelGrid.getLabelsToDisplay(t.ratio,this.settings.labelDensity);(0,h.default)(e,this.nodesWithForcedLabels),this.displayedLabels=new Set;for(var r=this.canvasContexts.labels,i=0,n=e.length;i<n;i++){var a=e[i],s=this.nodeDataCache[a];if(!this.displayedLabels.has(a)&&!s.hidden){var l=this.framedGraphToViewport(s),c=l.x,u=l.y,d=this.scaleSize(s.size);!s.forceLabel&&d<this.settings.labelRenderedSizeThreshold||c<-150||c>this.width+150||u<-50||u>this.height+50||(this.displayedLabels.add(a),this.settings.labelRenderer(r,o(o({key:a},s),{size:d,x:c,y:u}),this.settings))}}return this},e.prototype.renderEdgeLabels=function(){if(!this.settings.renderEdgeLabels)return this;var t=this.canvasContexts.edgeLabels;t.clearRect(0,0,this.width,this.height);for(var e=(0,p.edgeLabelsToDisplayFromNodes)({graph:this.graph,hoveredNode:this.hoveredNode,displayedNodeLabels:this.displayedLabels,highlightedNodes:this.highlightedNodes}).concat(this.edgesWithForcedLabels),r=new 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