9 lines
9.2 KiB
JavaScript
9 lines
9.2 KiB
JavaScript
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/*
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* heatmap.js v2.0.5 | JavaScript Heatmap Library
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*
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* Copyright 2008-2016 Patrick Wied <heatmapjs@patrick-wied.at> - All rights reserved.
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* Dual licensed under MIT and Beerware license
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*
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* :: 2016-09-05 01:16
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*/
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(function(a,b,c){if(typeof module!=="undefined"&&module.exports){module.exports=c()}else if(typeof define==="function"&&define.amd){define(c)}else{b[a]=c()}})("h337",this,function(){var a={defaultRadius:40,defaultRenderer:"canvas2d",defaultGradient:{.25:"rgb(0,0,255)",.55:"rgb(0,255,0)",.85:"yellow",1:"rgb(255,0,0)"},defaultMaxOpacity:1,defaultMinOpacity:0,defaultBlur:.85,defaultXField:"x",defaultYField:"y",defaultValueField:"value",plugins:{}};var b=function h(){var b=function d(a){this._coordinator={};this._data=[];this._radi=[];this._min=10;this._max=1;this._xField=a["xField"]||a.defaultXField;this._yField=a["yField"]||a.defaultYField;this._valueField=a["valueField"]||a.defaultValueField;if(a["radius"]){this._cfgRadius=a["radius"]}};var c=a.defaultRadius;b.prototype={_organiseData:function(a,b){var d=a[this._xField];var e=a[this._yField];var f=this._radi;var g=this._data;var h=this._max;var i=this._min;var j=a[this._valueField]||1;var k=a.radius||this._cfgRadius||c;if(!g[d]){g[d]=[];f[d]=[]}if(!g[d][e]){g[d][e]=j;f[d][e]=k}else{g[d][e]+=j}var l=g[d][e];if(l>h){if(!b){this._max=l}else{this.setDataMax(l)}return false}else if(l<i){if(!b){this._min=l}else{this.setDataMin(l)}return false}else{return{x:d,y:e,value:j,radius:k,min:i,max:h}}},_unOrganizeData:function(){var a=[];var b=this._data;var c=this._radi;for(var d in b){for(var e in b[d]){a.push({x:d,y:e,radius:c[d][e],value:b[d][e]})}}return{min:this._min,max:this._max,data:a}},_onExtremaChange:function(){this._coordinator.emit("extremachange",{min:this._min,max:this._max})},addData:function(){if(arguments[0].length>0){var a=arguments[0];var b=a.length;while(b--){this.addData.call(this,a[b])}}else{var c=this._organiseData(arguments[0],true);if(c){if(this._data.length===0){this._min=this._max=c.value}this._coordinator.emit("renderpartial",{min:this._min,max:this._max,data:[c]})}}return this},setData:function(a){var b=a.data;var c=b.length;this._data=[];this._radi=[];for(var d=0;d<c;d++){this._organiseData(b[d],false)}this._max=a.max;this._min=a.min||0;this._onExtremaChange();this._coordinator.emit("renderall",this._getInternalData());return this},removeData:function(){},setDataMax:function(a){this._max=a;this._onExtremaChange();this._coordinator.emit("renderall",this._getInternalData());return this},setDataMin:function(a){this._min=a;this._onExtremaChange();this._coordinator.emit("renderall",this._getInternalData());return this},setCoordinator:function(a){this._coordinator=a},_getInternalData:function(){return{max:this._max,min:this._min,data:this._data,radi:this._radi}},getData:function(){return this._unOrganizeData()}};return b}();var c=function i(){var a=function(a){var b=a.gradient||a.defaultGradient;var c=document.createElement("canvas");var d=c.getContext("2d");c.width=256;c.height=1;var e=d.createLinearGradient(0,0,256,1);for(var f in b){e.addColorStop(f,b[f])}d.fillStyle=e;d.fillRect(0,0,256,1);return d.getImageData(0,0,256,1).data};var b=function(a,b){var c=document.createElement("canvas");var d=c.getContext("2d");var e=a;var f=a;c.width=c.height=a*2;if(b==1){d.beginPath();d.arc(e,f,a,0,2*Math.PI,false);d.fillStyle="rgba(0,0,0,1)";d.fill()}else{var g=d.createRadialGradient(e,f,a*b,e,f,a);g.addColorStop(0,"rgba(0,0,0,1)");g.addColorStop(1,"rgba(0,0,0,0)");d.fillStyle=g;d.fillRect(0,0,2*a,2*a)}return c};var c=function(a){var b=[];var c=a.min;var d=a.max;var e=a.radi;var a=a.data;var f=Object.keys(a);var g=f.length;while(g--){var h=f[g];var i=Object.keys(a[h]);var j=i.length;while(j--){var k=i[j];var l=a[h][k];var m=e[h][k];b.push({x:h,y:k,value:l,radius:m})}}return{min:c,max:d,data:b}};function d(b){var c=b.container;var d=this.shadowCanvas=document.createElement("canvas");var e=this.canvas=b.canvas||document.createElement("canvas");var f=this._renderBoundaries=[1e4,1e4,0,0];var g=getComputedStyle(b.container)||{};e.className="heatmap-canvas";this._width=e.width=d.width=b.width||+g.width.replace(/px/,"");this._height=e.height=d.height=b.height||+g.height.replace(/px/,"");this.shadowCtx=d.getContext("2d");this.ctx=e.getContext("2d");e.style.cssText=d.style.cssTex
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