886 lines
27 KiB
JavaScript
886 lines
27 KiB
JavaScript
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/*
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* CesiumHeatmap.js v0.1 | Cesium Heatmap Library
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*
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* Works with heatmap.js v2.0.0: http://www.patrick-wied.at/static/heatmapjs/
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*/
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(function (window) {
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"use strict";
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function define_CesiumHeatmap() {
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var CesiumHeatmap = {
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defaults: {
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useEntitiesIfAvailable: true, //whether to use entities if a Viewer is supplied or always use an ImageryProvider
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minCanvasSize: 700, // minimum size (in pixels) for the heatmap canvas
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maxCanvasSize: 2000, // maximum size (in pixels) for the heatmap canvas
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radiusFactor: 60, // data point size factor used if no radius is given (the greater of height and width divided by this number yields the used radius)
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spacingFactor: 1.5, // extra space around the borders (point radius multiplied by this number yields the spacing)
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maxOpacity: 0.8, // the maximum opacity used if not given in the heatmap options object
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minOpacity: 0.1, // the minimum opacity used if not given in the heatmap options object
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blur: 0.85, // the blur used if not given in the heatmap options object
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gradient: {
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// the gradient used if not given in the heatmap options object
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".3": "rgba(250,253,138,1)",
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".65": "rgba(253,156,54,1)",
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".8": "rgba(250,0,0,1)",
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".95": "rgba(153,0,0,1)"
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}
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}
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};
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/* Create a CesiumHeatmap instance
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*
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* cesium: the CesiumWidget or Viewer instance
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* bb: the WGS84 bounding box like {north, east, south, west}
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* options: a heatmap.js options object (see http://www.patrick-wied.at/static/heatmapjs/docs.html#h337-create)
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*/
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CesiumHeatmap.create = function (cesium, bb, options, Cesium) {
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WMP = new Cesium.WebMercatorProjection();
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window.Cesium = Cesium;
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var instance = new CHInstance(cesium, bb, options);
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return instance;
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};
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CesiumHeatmap._getContainer = function (width, height, id) {
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var c = document.createElement("div");
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if (id) {
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c.setAttribute("id", id);
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}
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c.setAttribute("style", "width: " + width + "px; height: " + height + "px; margin: 0px; display: none;");
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document.body.appendChild(c);
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return c;
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};
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CesiumHeatmap._getImageryProvider = function (instance) {
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//var n = (new Date()).getTime();
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var d = instance._heatmap.getDataURL();
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//console.log("Create data URL: " + ((new Date()).getTime() - n));
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//var n = (new Date()).getTime();
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var imgprov = new Cesium.SingleTileImageryProvider({
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url: d,
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rectangle: instance._rectangle
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});
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//console.log("Create imageryprovider: " + ((new Date()).getTime() - n));
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imgprov._tilingScheme = new Cesium.WebMercatorTilingScheme({
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rectangleSouthwestInMeters: new Cesium.Cartesian2(instance._mbounds.west, instance._mbounds.south),
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rectangleNortheastInMeters: new Cesium.Cartesian2(instance._mbounds.east, instance._mbounds.north)
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});
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return imgprov;
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};
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CesiumHeatmap._getID = function (len) {
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var text = "";
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var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
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for (var i = 0; i < (len ? len : 8); i++) text += possible.charAt(Math.floor(Math.random() * possible.length));
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return text;
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};
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var WMP;
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/* Convert a WGS84 location into a mercator location
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*
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* p: the WGS84 location like {x: lon, y: lat}
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*/
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CesiumHeatmap.wgs84ToMercator = function (p) {
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var mp = WMP.project(Cesium.Cartographic.fromDegrees(p.x, p.y));
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return {
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x: mp.x,
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y: mp.y
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};
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};
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/* Convert a WGS84 bounding box into a mercator bounding box
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*
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* bb: the WGS84 bounding box like {north, east, south, west}
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*/
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CesiumHeatmap.wgs84ToMercatorBB = function (bb) {
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var sw = WMP.project(Cesium.Cartographic.fromDegrees(bb.west, bb.south));
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var ne = WMP.project(Cesium.Cartographic.fromDegrees(bb.east, bb.north));
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return {
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north: ne.y,
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east: ne.x,
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south: sw.y,
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west: sw.x
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};
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};
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/* Convert a mercator location into a WGS84 location
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*
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* p: the mercator lcation like {x, y}
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*/
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CesiumHeatmap.mercatorToWgs84 = function (p) {
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var wp = WMP.unproject(new Cesium.Cartesian3(p.x, p.y));
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return {
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x: wp.longitude,
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y: wp.latitude
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};
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};
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/* Convert a mercator bounding box into a WGS84 bounding box
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*
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* bb: the mercator bounding box like {north, east, south, west}
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*/
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CesiumHeatmap.mercatorToWgs84BB = function (bb) {
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var sw = WMP.unproject(new Cesium.Cartesian3(bb.west, bb.south));
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var ne = WMP.unproject(new Cesium.Cartesian3(bb.east, bb.north));
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return {
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north: this.rad2deg(ne.latitude),
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east: this.rad2deg(ne.longitude),
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south: this.rad2deg(sw.latitude),
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west: this.rad2deg(sw.longitude)
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};
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};
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/* Convert degrees into radians
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*
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* d: the degrees to be converted to radians
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*/
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CesiumHeatmap.deg2rad = function (d) {
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var r = d * (Math.PI / 180.0);
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return r;
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};
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/* Convert radians into degrees
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*
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* r: the radians to be converted to degrees
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*/
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CesiumHeatmap.rad2deg = function (r) {
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var d = r / (Math.PI / 180.0);
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return d;
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};
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return CesiumHeatmap;
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}
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if (typeof CesiumHeatmap === "undefined") {
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window.CesiumHeatmap = define_CesiumHeatmap();
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} else {
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console.log("CesiumHeatmap already defined.");
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}
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})(window);
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/* Initiate a CesiumHeatmap instance
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*
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* c: CesiumWidget instance
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* bb: a WGS84 bounding box like {north, east, south, west}
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* o: a heatmap.js options object (see http://www.patrick-wied.at/static/heatmapjs/docs.html#h337-create)
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*/
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function CHInstance(c, bb, o) {
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if (!bb) {
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return null;
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}
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if (!o) {
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o = {};
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}
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this._cesium = c;
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this._options = o;
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this._id = CesiumHeatmap._getID();
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this._options.gradient = this._options.gradient ? this._options.gradient : CesiumHeatmap.defaults.gradient;
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this._options.maxOpacity = this._options.maxOpacity ? this._options.maxOpacity : CesiumHeatmap.defaults.maxOpacity;
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this._options.minOpacity = this._options.minOpacity ? this._options.minOpacity : CesiumHeatmap.defaults.minOpacity;
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this._options.blur = this._options.blur ? this._options.blur : CesiumHeatmap.defaults.blur;
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this._mbounds = CesiumHeatmap.wgs84ToMercatorBB(bb);
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this._setWidthAndHeight(this._mbounds);
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this._options.radius = Math.round(
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this._options.radius
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? this._options.radius
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: this.width > this.height
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? this.width / CesiumHeatmap.defaults.radiusFactor
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: this.height / CesiumHeatmap.defaults.radiusFactor
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);
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this._spacing = this._options.radius * CesiumHeatmap.defaults.spacingFactor;
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this._xoffset = this._mbounds.west;
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this._yoffset = this._mbounds.south;
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this.width = Math.round(this.width + this._spacing * 2);
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this.height = Math.round(this.height + this._spacing * 2);
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this._mbounds.west -= this._spacing * this._factor;
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this._mbounds.east += this._spacing * this._factor;
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this._mbounds.south -= this._spacing * this._factor;
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this._mbounds.north += this._spacing * this._factor;
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this.bounds = CesiumHeatmap.mercatorToWgs84BB(this._mbounds);
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this._rectangle = Cesium.Rectangle.fromDegrees(this.bounds.west, this.bounds.south, this.bounds.east, this.bounds.north);
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this._container = CesiumHeatmap._getContainer(this.width, this.height, this._id);
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this._options.container = this._container;
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this._heatmap = h337.create(this._options);
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this._container.children[0].setAttribute("id", this._id + "-hm");
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}
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/* Convert a WGS84 location to the corresponding heatmap location
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*
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* p: a WGS84 location like {x:lon, y:lat}
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*/
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CHInstance.prototype.wgs84PointToHeatmapPoint = function (p) {
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return this.mercatorPointToHeatmapPoint(CesiumHeatmap.wgs84ToMercator(p));
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};
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/* Convert a mercator location to the corresponding heatmap location
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*
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* p: a WGS84 location like {x: lon, y:lat}
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*/
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CHInstance.prototype.mercatorPointToHeatmapPoint = function (p) {
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var pn = {};
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pn.x = Math.round((p.x - this._xoffset) / this._factor + this._spacing);
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pn.y = Math.round((p.y - this._yoffset) / this._factor + this._spacing);
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pn.y = this.height - pn.y;
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return pn;
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};
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CHInstance.prototype._setWidthAndHeight = function (mbb) {
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this.width = mbb.east > 0 && mbb.west < 0 ? mbb.east + Math.abs(mbb.west) : Math.abs(mbb.east - mbb.west);
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this.height = mbb.north > 0 && mbb.south < 0 ? mbb.north + Math.abs(mbb.south) : Math.abs(mbb.north - mbb.south);
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this._factor = 1;
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if (this.width > this.height && this.width > CesiumHeatmap.defaults.maxCanvasSize) {
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this._factor = this.width / CesiumHeatmap.defaults.maxCanvasSize;
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if (this.height / this._factor < CesiumHeatmap.defaults.minCanvasSize) {
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this._factor = this.height / CesiumHeatmap.defaults.minCanvasSize;
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}
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} else if (this.height > this.width && this.height > CesiumHeatmap.defaults.maxCanvasSize) {
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this._factor = this.height / CesiumHeatmap.defaults.maxCanvasSize;
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if (this.width / this._factor < CesiumHeatmap.defaults.minCanvasSize) {
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this._factor = this.width / CesiumHeatmap.defaults.minCanvasSize;
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}
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} else if (this.width < this.height && this.width < CesiumHeatmap.defaults.minCanvasSize) {
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this._factor = this.width / CesiumHeatmap.defaults.minCanvasSize;
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if (this.height / this._factor > CesiumHeatmap.defaults.maxCanvasSize) {
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this._factor = this.height / CesiumHeatmap.defaults.maxCanvasSize;
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}
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} else if (this.height < this.width && this.height < CesiumHeatmap.defaults.minCanvasSize) {
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this._factor = this.height / CesiumHeatmap.defaults.minCanvasSize;
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if (this.width / this._factor > CesiumHeatmap.defaults.maxCanvasSize) {
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this._factor = this.width / CesiumHeatmap.defaults.maxCanvasSize;
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}
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}
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this.width = this.width / this._factor;
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this.height = this.height / this._factor;
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};
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/* Set an array of heatmap locations
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*
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* min: the minimum allowed value for the data values
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* max: the maximum allowed value for the data values
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* data: an array of data points in heatmap coordinates and values like {x, y, value}
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*/
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CHInstance.prototype.setData = function (min, max, data) {
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if (data && data.length > 0 && min !== null && min !== false && max !== null && max !== false) {
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this._heatmap.setData({
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min: min,
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max: max,
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data: data
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});
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this.updateLayer();
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return true;
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}
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return false;
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};
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/* Set an array of WGS84 locations
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*
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* min: the minimum allowed value for the data values
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* max: the maximum allowed value for the data values
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* data: an array of data points in WGS84 coordinates and values like { x:lon, y:lat, value }
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*/
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CHInstance.prototype.setWGS84Data = function (min, max, data) {
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if (data && data.length > 0 && min !== null && min !== false && max !== null && max !== false) {
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var convdata = [];
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for (var i = 0; i < data.length; i++) {
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var gp = data[i];
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var hp = this.wgs84PointToHeatmapPoint(gp);
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if (gp.value || gp.value === 0) {
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hp.value = gp.value;
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}
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convdata.push(hp);
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}
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return this.setData(min, max, convdata);
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}
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return false;
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};
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/* Set whether or not the heatmap is shown on the map
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*
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* s: true means the heatmap is shown, false means the heatmap is hidden
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*/
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CHInstance.prototype.show = function (s) {
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if (this._layer) {
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this._layer.show = s;
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}
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};
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/* Update/(re)draw the heatmap
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*/
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CHInstance.prototype.updateLayer = function () {
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// only works with a Viewer instance since the cesiumWidget
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// instance doesn't contain an entities property
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if (CesiumHeatmap.defaults.useEntitiesIfAvailable && this._cesium.entities) {
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if (this._layer) {
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this._cesium.entities.remove(this._layer);
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}
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// Work around issue with material rendering in Cesium
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// provided by https://github.com/criis
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material = new Cesium.ImageMaterialProperty({
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image: this._heatmap._renderer.canvas
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});
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if (Cesium.VERSION >= "1.21") {
|
||
|
|
material.transparent = true;
|
||
|
|
} else if (Cesium.VERSION >= "1.16") {
|
||
|
|
material.alpha = 0.99;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._layer = this._cesium.entities.add({
|
||
|
|
show: true,
|
||
|
|
rectangle: {
|
||
|
|
coordinates: this._rectangle,
|
||
|
|
material: material
|
||
|
|
}
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
if (this._layer) {
|
||
|
|
this._cesium.scene.imageryLayers.remove(this._layer);
|
||
|
|
}
|
||
|
|
|
||
|
|
this._layer = this._cesium.scene.imageryLayers.addImageryProvider(CesiumHeatmap._getImageryProvider(this));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/* DON'T TOUCH:
|
||
|
|
*
|
||
|
|
* heatmap.js v2.0.0 | JavaScript Heatmap Library: http://www.patrick-wied.at/static/heatmapjs/
|
||
|
|
*
|
||
|
|
* Copyright 2008-2014 Patrick Wied <heatmapjs@patrick-wied.at> - All rights reserved.
|
||
|
|
* Dual licensed under MIT and Beerware license
|
||
|
|
*
|
||
|
|
* :: 2014-10-31 21:16
|
||
|
|
*/
|
||
|
|
(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: { 0.25: "rgb(0,0,255)", 0.55: "rgb(0,255,0)", 0.85: "yellow", 1: "rgb(255,0,0)" },
|
||
|
|
defaultMaxOpacity: 1,
|
||
|
|
defaultMinOpacity: 0,
|
||
|
|
defaultBlur: 0.85,
|
||
|
|
defaultXField: "x",
|
||
|
|
defaultYField: "y",
|
||
|
|
defaultValueField: "value",
|
||
|
|
plugins: {}
|
||
|
|
};
|
||
|
|
var b = (function h() {
|
||
|
|
var b = function d(a) {
|
||
|
|
this._coordinator = {};
|
||
|
|
this._data = [];
|
||
|
|
this._radi = [];
|
||
|
|
this._min = 0;
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
if (g[d][e] > h) {
|
||
|
|
if (!b) {
|
||
|
|
this._max = g[d][e];
|
||
|
|
} else {
|
||
|
|
this.setDataMax(g[d][e]);
|
||
|
|
}
|
||
|
|
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) {
|
||
|
|
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 = +g.width.replace(/px/, "");
|
||
|
|
this._height = e.height = d.height = +g.height.replace(/px/, "");
|
||
|
|
this.shadowCtx = d.getContext("2d");
|
||
|
|
this.ctx = e.getContext("2d");
|
||
|
|
e.style.cssText = d.style.cssText = "position:absolute;left:0;top:0;";
|
||
|
|
c.style.position = "relative";
|
||
|
|
c.appendChild(e);
|
||
|
|
this._palette = a(b);
|
||
|
|
this._templates = {};
|
||
|
|
this._setStyles(b);
|
||
|
|
}
|
||
|
|
|
||
|
|
d.prototype = {
|
||
|
|
renderPartial: function (a) {
|
||
|
|
this._drawAlpha(a);
|
||
|
|
this._colorize();
|
||
|
|
},
|
||
|
|
renderAll: function (a) {
|
||
|
|
this._clear();
|
||
|
|
this._drawAlpha(c(a));
|
||
|
|
this._colorize();
|
||
|
|
},
|
||
|
|
_updateGradient: function (b) {
|
||
|
|
this._palette = a(b);
|
||
|
|
},
|
||
|
|
updateConfig: function (a) {
|
||
|
|
if (a["gradient"]) {
|
||
|
|
this._updateGradient(a);
|
||
|
|
}
|
||
|
|
this._setStyles(a);
|
||
|
|
},
|
||
|
|
setDimensions: function (a, b) {
|
||
|
|
this._width = a;
|
||
|
|
this._height = b;
|
||
|
|
this.canvas.width = this.shadowCanvas.width = a;
|
||
|
|
this.canvas.height = this.shadowCanvas.height = b;
|
||
|
|
},
|
||
|
|
_clear: function () {
|
||
|
|
this.shadowCtx.clearRect(0, 0, this._width, this._height);
|
||
|
|
this.ctx.clearRect(0, 0, this._width, this._height);
|
||
|
|
},
|
||
|
|
_setStyles: function (a) {
|
||
|
|
this._blur = a.blur == 0 ? 0 : a.blur || a.defaultBlur;
|
||
|
|
if (a.backgroundColor) {
|
||
|
|
this.canvas.style.backgroundColor = a.backgroundColor;
|
||
|
|
}
|
||
|
|
this._opacity = (a.opacity || 0) * 255;
|
||
|
|
this._maxOpacity = (a.maxOpacity || a.defaultMaxOpacity) * 255;
|
||
|
|
this._minOpacity = (a.minOpacity || a.defaultMinOpacity) * 255;
|
||
|
|
this._useGradientOpacity = !!a.useGradientOpacity;
|
||
|
|
},
|
||
|
|
_drawAlpha: function (a) {
|
||
|
|
var c = (this._min = a.min);
|
||
|
|
var d = (this._max = a.max);
|
||
|
|
var a = a.data || [];
|
||
|
|
var e = a.length;
|
||
|
|
var f = 1 - this._blur;
|
||
|
|
while (e--) {
|
||
|
|
var g = a[e];
|
||
|
|
var h = g.x;
|
||
|
|
var i = g.y;
|
||
|
|
var j = g.radius;
|
||
|
|
var k = Math.min(g.value, d);
|
||
|
|
var l = h - j;
|
||
|
|
var m = i - j;
|
||
|
|
var n = this.shadowCtx;
|
||
|
|
var o;
|
||
|
|
if (!this._templates[j]) {
|
||
|
|
this._templates[j] = o = b(j, f);
|
||
|
|
} else {
|
||
|
|
o = this._templates[j];
|
||
|
|
}
|
||
|
|
n.globalAlpha = (k - c) / (d - c);
|
||
|
|
n.drawImage(o, l, m);
|
||
|
|
if (l < this._renderBoundaries[0]) {
|
||
|
|
this._renderBoundaries[0] = l;
|
||
|
|
}
|
||
|
|
if (m < this._renderBoundaries[1]) {
|
||
|
|
this._renderBoundaries[1] = m;
|
||
|
|
}
|
||
|
|
if (l + 2 * j > this._renderBoundaries[2]) {
|
||
|
|
this._renderBoundaries[2] = l + 2 * j;
|
||
|
|
}
|
||
|
|
if (m + 2 * j > this._renderBoundaries[3]) {
|
||
|
|
this._renderBoundaries[3] = m + 2 * j;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
_colorize: function () {
|
||
|
|
var a = this._renderBoundaries[0];
|
||
|
|
var b = this._renderBoundaries[1];
|
||
|
|
var c = this._renderBoundaries[2] - a;
|
||
|
|
var d = this._renderBoundaries[3] - b;
|
||
|
|
var e = this._width;
|
||
|
|
var f = this._height;
|
||
|
|
var g = this._opacity;
|
||
|
|
var h = this._maxOpacity;
|
||
|
|
var i = this._minOpacity;
|
||
|
|
var j = this._useGradientOpacity;
|
||
|
|
if (a < 0) {
|
||
|
|
a = 0;
|
||
|
|
}
|
||
|
|
if (b < 0) {
|
||
|
|
b = 0;
|
||
|
|
}
|
||
|
|
if (a + c > e) {
|
||
|
|
c = e - a;
|
||
|
|
}
|
||
|
|
if (b + d > f) {
|
||
|
|
d = f - b;
|
||
|
|
}
|
||
|
|
var k = this.shadowCtx.getImageData(a, b, c, d);
|
||
|
|
var l = k.data;
|
||
|
|
var m = l.length;
|
||
|
|
var n = this._palette;
|
||
|
|
for (var o = 3; o < m; o += 4) {
|
||
|
|
var p = l[o];
|
||
|
|
var q = p * 4;
|
||
|
|
if (!q) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
var r;
|
||
|
|
if (g > 0) {
|
||
|
|
r = g;
|
||
|
|
} else {
|
||
|
|
if (p < h) {
|
||
|
|
if (p < i) {
|
||
|
|
r = i;
|
||
|
|
} else {
|
||
|
|
r = p;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
r = h;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
l[o - 3] = n[q];
|
||
|
|
l[o - 2] = n[q + 1];
|
||
|
|
l[o - 1] = n[q + 2];
|
||
|
|
l[o] = j ? n[q + 3] : r;
|
||
|
|
}
|
||
|
|
k.data = l;
|
||
|
|
this.ctx.putImageData(k, a, b);
|
||
|
|
this._renderBoundaries = [1e3, 1e3, 0, 0];
|
||
|
|
},
|
||
|
|
getValueAt: function (a) {
|
||
|
|
var b;
|
||
|
|
var c = this.shadowCtx;
|
||
|
|
var d = c.getImageData(a.x, a.y, 1, 1);
|
||
|
|
var e = d.data[3];
|
||
|
|
var f = this._max;
|
||
|
|
var g = this._min;
|
||
|
|
b = (Math.abs(f - g) * (e / 255)) >> 0;
|
||
|
|
return b;
|
||
|
|
},
|
||
|
|
getDataURL: function () {
|
||
|
|
return this.canvas.toDataURL();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return d;
|
||
|
|
})();
|
||
|
|
var d = (function j() {
|
||
|
|
var b = false;
|
||
|
|
if (a["defaultRenderer"] === "canvas2d") {
|
||
|
|
b = c;
|
||
|
|
}
|
||
|
|
return b;
|
||
|
|
})();
|
||
|
|
var e = {
|
||
|
|
merge: function () {
|
||
|
|
var a = {};
|
||
|
|
var b = arguments.length;
|
||
|
|
for (var c = 0; c < b; c++) {
|
||
|
|
var d = arguments[c];
|
||
|
|
for (var e in d) {
|
||
|
|
a[e] = d[e];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var f = (function k() {
|
||
|
|
var c = (function h() {
|
||
|
|
function a() {
|
||
|
|
this.cStore = {};
|
||
|
|
}
|
||
|
|
|
||
|
|
a.prototype = {
|
||
|
|
on: function (a, b, c) {
|
||
|
|
var d = this.cStore;
|
||
|
|
if (!d[a]) {
|
||
|
|
d[a] = [];
|
||
|
|
}
|
||
|
|
d[a].push(function (a) {
|
||
|
|
return b.call(c, a);
|
||
|
|
});
|
||
|
|
},
|
||
|
|
emit: function (a, b) {
|
||
|
|
var c = this.cStore;
|
||
|
|
if (c[a]) {
|
||
|
|
var d = c[a].length;
|
||
|
|
for (var e = 0; e < d; e++) {
|
||
|
|
var f = c[a][e];
|
||
|
|
f(b);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return a;
|
||
|
|
})();
|
||
|
|
var f = function (a) {
|
||
|
|
var b = a._renderer;
|
||
|
|
var c = a._coordinator;
|
||
|
|
var d = a._store;
|
||
|
|
c.on("renderpartial", b.renderPartial, b);
|
||
|
|
c.on("renderall", b.renderAll, b);
|
||
|
|
c.on("extremachange", function (b) {
|
||
|
|
a._config.onExtremaChange &&
|
||
|
|
a._config.onExtremaChange({
|
||
|
|
min: b.min,
|
||
|
|
max: b.max,
|
||
|
|
gradient: a._config["gradient"] || a._config["defaultGradient"]
|
||
|
|
});
|
||
|
|
});
|
||
|
|
d.setCoordinator(c);
|
||
|
|
};
|
||
|
|
|
||
|
|
function g() {
|
||
|
|
var g = (this._config = e.merge(a, arguments[0] || {}));
|
||
|
|
this._coordinator = new c();
|
||
|
|
if (g["plugin"]) {
|
||
|
|
var h = g["plugin"];
|
||
|
|
if (!a.plugins[h]) {
|
||
|
|
throw new Error("Plugin '" + h + "' not found. Maybe it was not registered.");
|
||
|
|
} else {
|
||
|
|
var i = a.plugins[h];
|
||
|
|
this._renderer = new i.renderer(g);
|
||
|
|
this._store = new i.store(g);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
this._renderer = new d(g);
|
||
|
|
this._store = new b(g);
|
||
|
|
}
|
||
|
|
f(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
g.prototype = {
|
||
|
|
addData: function () {
|
||
|
|
this._store.addData.apply(this._store, arguments);
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
removeData: function () {
|
||
|
|
this._store.removeData && this._store.removeData.apply(this._store, arguments);
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
setData: function () {
|
||
|
|
this._store.setData.apply(this._store, arguments);
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
setDataMax: function () {
|
||
|
|
this._store.setDataMax.apply(this._store, arguments);
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
setDataMin: function () {
|
||
|
|
this._store.setDataMin.apply(this._store, arguments);
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
configure: function (a) {
|
||
|
|
this._config = e.merge(this._config, a);
|
||
|
|
this._renderer.updateConfig(this._config);
|
||
|
|
this._coordinator.emit("renderall", this._store._getInternalData());
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
repaint: function () {
|
||
|
|
this._coordinator.emit("renderall", this._store._getInternalData());
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
getData: function () {
|
||
|
|
return this._store.getData();
|
||
|
|
},
|
||
|
|
getDataURL: function () {
|
||
|
|
return this._renderer.getDataURL();
|
||
|
|
},
|
||
|
|
getValueAt: function (a) {
|
||
|
|
if (this._store.getValueAt) {
|
||
|
|
return this._store.getValueAt(a);
|
||
|
|
} else if (this._renderer.getValueAt) {
|
||
|
|
return this._renderer.getValueAt(a);
|
||
|
|
} else {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return g;
|
||
|
|
})();
|
||
|
|
var g = {
|
||
|
|
create: function (a) {
|
||
|
|
return new f(a);
|
||
|
|
},
|
||
|
|
register: function (b, c) {
|
||
|
|
a.plugins[b] = c;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
return g;
|
||
|
|
});
|