805 lines
25 KiB
JavaScript
805 lines
25 KiB
JavaScript
/*
|
|
* CesiumHeatmap.js v0.1 | Cesium Heatmap Library
|
|
*
|
|
* Works with heatmap.js v2.0.0: http://www.patrick-wied.at/static/heatmapjs/
|
|
*/
|
|
(function (window) {
|
|
'use strict';
|
|
function define_CesiumHeatmap() {
|
|
var CesiumHeatmap = {
|
|
defaults: {
|
|
useEntitiesIfAvailable: true, //whether to use entities if a Viewer is supplied or always use an ImageryProvider
|
|
minCanvasSize: 700, // minimum size (in pixels) for the heatmap canvas
|
|
maxCanvasSize: 2000, // maximum size (in pixels) for the heatmap canvas
|
|
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)
|
|
spacingFactor: 1.5, // extra space around the borders (point radius multiplied by this number yields the spacing)
|
|
maxOpacity: 0.8, // the maximum opacity used if not given in the heatmap options object
|
|
minOpacity: 0.1, // the minimum opacity used if not given in the heatmap options object
|
|
blur: 0.85, // the blur used if not given in the heatmap options object
|
|
gradient: { // the gradient used if not given in the heatmap options object
|
|
'.3': 'blue',
|
|
'.65': 'yellow',
|
|
'.8': 'orange',
|
|
'.95': 'red'
|
|
},
|
|
}
|
|
};
|
|
|
|
/* Create a CesiumHeatmap instance
|
|
*
|
|
* cesium: the CesiumWidget or Viewer instance
|
|
* bb: the WGS84 bounding box like {north, east, south, west}
|
|
* options: a heatmap.js options object (see http://www.patrick-wied.at/static/heatmapjs/docs.html#h337-create)
|
|
*/
|
|
CesiumHeatmap.create = function (bb, options) {
|
|
var instance = new CHInstance(bb, options);
|
|
return instance;
|
|
};
|
|
|
|
CesiumHeatmap._getContainer = function (width, height, id) {
|
|
var c = document.createElement("div");
|
|
if (id) {
|
|
c.setAttribute("id", id);
|
|
}
|
|
c.setAttribute("style", "width: " + width + "px; height: " + height + "px; margin: 0px; display: none;");
|
|
document.body.appendChild(c);
|
|
setTimeout(() => {
|
|
document.body.removeChild(c)
|
|
}, 500);
|
|
return c;
|
|
};
|
|
|
|
CesiumHeatmap._getImageryProvider = function (instance) {
|
|
//var n = (new Date()).getTime();
|
|
var d = instance._heatmap.getDataURL();
|
|
//console.log("Create data URL: " + ((new Date()).getTime() - n));
|
|
|
|
//var n = (new Date()).getTime();
|
|
var imgprov = new Cesium.SingleTileImageryProvider({
|
|
url: d,
|
|
rectangle: instance._rectangle
|
|
});
|
|
//console.log("Create imageryprovider: " + ((new Date()).getTime() - n));
|
|
|
|
imgprov._tilingScheme = new Cesium.WebMercatorTilingScheme({
|
|
rectangleSouthwestInMeters: new Cesium.Cartesian2(instance._mbounds.west, instance._mbounds.south),
|
|
rectangleNortheastInMeters: new Cesium.Cartesian2(instance._mbounds.east, instance._mbounds.north)
|
|
});
|
|
|
|
return imgprov;
|
|
};
|
|
|
|
CesiumHeatmap._getID = function (len) {
|
|
var text = "";
|
|
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
|
|
|
|
for (var i = 0; i < ((len) ? len : 8); i++)
|
|
text += possible.charAt(Math.floor(Math.random() * possible.length));
|
|
|
|
return text;
|
|
};
|
|
|
|
var WMP = new Cesium.WebMercatorProjection();
|
|
|
|
/* Convert a WGS84 location into a mercator location
|
|
*
|
|
* p: the WGS84 location like {x: lon, y: lat}
|
|
*/
|
|
CesiumHeatmap.wgs84ToMercator = function (p) {
|
|
var mp = WMP.project(Cesium.Cartographic.fromDegrees(p.x, p.y));
|
|
return {
|
|
x: mp.x,
|
|
y: mp.y
|
|
};
|
|
};
|
|
|
|
/* Convert a WGS84 bounding box into a mercator bounding box
|
|
*
|
|
* bb: the WGS84 bounding box like {north, east, south, west}
|
|
*/
|
|
CesiumHeatmap.wgs84ToMercatorBB = function (bb) {
|
|
var sw = WMP.project(Cesium.Cartographic.fromDegrees(bb.west, bb.south));
|
|
var ne = WMP.project(Cesium.Cartographic.fromDegrees(bb.east, bb.north));
|
|
return {
|
|
north: ne.y,
|
|
east: ne.x,
|
|
south: sw.y,
|
|
west: sw.x
|
|
};
|
|
};
|
|
|
|
/* Convert a mercator location into a WGS84 location
|
|
*
|
|
* p: the mercator lcation like {x, y}
|
|
*/
|
|
CesiumHeatmap.mercatorToWgs84 = function (p) {
|
|
var wp = WMP.unproject(new Cesium.Cartesian3(p.x, p.y));
|
|
return {
|
|
x: wp.longitude,
|
|
y: wp.latitude
|
|
};
|
|
};
|
|
|
|
/* Convert a mercator bounding box into a WGS84 bounding box
|
|
*
|
|
* bb: the mercator bounding box like {north, east, south, west}
|
|
*/
|
|
CesiumHeatmap.mercatorToWgs84BB = function (bb) {
|
|
var sw = WMP.unproject(new Cesium.Cartesian3(bb.west, bb.south));
|
|
var ne = WMP.unproject(new Cesium.Cartesian3(bb.east, bb.north));
|
|
return {
|
|
north: this.rad2deg(ne.latitude),
|
|
east: this.rad2deg(ne.longitude),
|
|
south: this.rad2deg(sw.latitude),
|
|
west: this.rad2deg(sw.longitude)
|
|
};
|
|
};
|
|
|
|
/* Convert degrees into radians
|
|
*
|
|
* d: the degrees to be converted to radians
|
|
*/
|
|
CesiumHeatmap.deg2rad = function (d) {
|
|
var r = d * (Math.PI / 180.0);
|
|
return r;
|
|
};
|
|
|
|
/* Convert radians into degrees
|
|
*
|
|
* r: the radians to be converted to degrees
|
|
*/
|
|
CesiumHeatmap.rad2deg = function (r) {
|
|
var d = r / (Math.PI / 180.0);
|
|
return d;
|
|
};
|
|
|
|
return CesiumHeatmap;
|
|
}
|
|
|
|
if (typeof (CesiumHeatmap) === 'undefined') {
|
|
window.CesiumHeatmap = define_CesiumHeatmap();
|
|
} else {
|
|
console.log("CesiumHeatmap already defined.");
|
|
}
|
|
})(window);
|
|
|
|
/* Initiate a CesiumHeatmap instance
|
|
*
|
|
* c: CesiumWidget instance
|
|
* bb: a WGS84 bounding box like {north, east, south, west}
|
|
* o: a heatmap.js options object (see http://www.patrick-wied.at/static/heatmapjs/docs.html#h337-create)
|
|
*/
|
|
function CHInstance(bb, o) {
|
|
if (!bb) {
|
|
return null;
|
|
}
|
|
if (!o) {
|
|
o = {};
|
|
}
|
|
|
|
this._options = o;
|
|
this._id = CesiumHeatmap._getID();
|
|
|
|
this._options.gradient = ((this._options.gradient) ? this._options.gradient : CesiumHeatmap.defaults.gradient);
|
|
this._options.maxOpacity = ((this._options.maxOpacity) ? this._options.maxOpacity : CesiumHeatmap.defaults.maxOpacity);
|
|
this._options.minOpacity = ((this._options.minOpacity) ? this._options.minOpacity : CesiumHeatmap.defaults.minOpacity);
|
|
this._options.blur = ((this._options.blur) ? this._options.blur : CesiumHeatmap.defaults.blur);
|
|
|
|
this._mbounds = CesiumHeatmap.wgs84ToMercatorBB(bb);
|
|
this._setWidthAndHeight(this._mbounds);
|
|
|
|
this._options.radius = Math.round((this._options.radius) ? this._options.radius : ((this.width > this.height) ? this.width / CesiumHeatmap.defaults.radiusFactor : this.height / CesiumHeatmap.defaults.radiusFactor));
|
|
|
|
this._spacing = this._options.radius * CesiumHeatmap.defaults.spacingFactor;
|
|
this._xoffset = this._mbounds.west;
|
|
this._yoffset = this._mbounds.south;
|
|
|
|
this.width = Math.round(this.width + this._spacing * 2);
|
|
this.height = Math.round(this.height + this._spacing * 2);
|
|
|
|
this._mbounds.west -= this._spacing * this._factor;
|
|
this._mbounds.east += this._spacing * this._factor;
|
|
this._mbounds.south -= this._spacing * this._factor;
|
|
this._mbounds.north += this._spacing * this._factor;
|
|
|
|
this.bounds = CesiumHeatmap.mercatorToWgs84BB(this._mbounds);
|
|
|
|
this._rectangle = Cesium.Rectangle.fromDegrees(this.bounds.west, this.bounds.south, this.bounds.east, this.bounds.north);
|
|
this._container = CesiumHeatmap._getContainer(this.width, this.height, this._id);
|
|
this._options.container = this._container;
|
|
this._heatmap = h337.create(this._options);
|
|
this._container.children[0].setAttribute("id", this._id + "-hm");
|
|
}
|
|
|
|
/* Convert a WGS84 location to the corresponding heatmap location
|
|
*
|
|
* p: a WGS84 location like {x:lon, y:lat}
|
|
*/
|
|
CHInstance.prototype.wgs84PointToHeatmapPoint = function (p) {
|
|
return this.mercatorPointToHeatmapPoint(CesiumHeatmap.wgs84ToMercator(p));
|
|
};
|
|
|
|
/* Convert a mercator location to the corresponding heatmap location
|
|
*
|
|
* p: a WGS84 location like {x: lon, y:lat}
|
|
*/
|
|
CHInstance.prototype.mercatorPointToHeatmapPoint = function (p) {
|
|
var pn = {};
|
|
|
|
pn.x = Math.round((p.x - this._xoffset) / this._factor + this._spacing);
|
|
pn.y = Math.round((p.y - this._yoffset) / this._factor + this._spacing);
|
|
pn.y = this.height - pn.y;
|
|
|
|
return pn;
|
|
};
|
|
|
|
CHInstance.prototype._setWidthAndHeight = function (mbb) {
|
|
this.width = ((mbb.east > 0 && mbb.west < 0) ? mbb.east + Math.abs(mbb.west) : Math.abs(mbb.east - mbb.west));
|
|
this.height = ((mbb.north > 0 && mbb.south < 0) ? mbb.north + Math.abs(mbb.south) : Math.abs(mbb.north - mbb.south));
|
|
this._factor = 1;
|
|
|
|
if (this.width > this.height && this.width > CesiumHeatmap.defaults.maxCanvasSize) {
|
|
this._factor = this.width / CesiumHeatmap.defaults.maxCanvasSize;
|
|
|
|
if (this.height / this._factor < CesiumHeatmap.defaults.minCanvasSize) {
|
|
this._factor = this.height / CesiumHeatmap.defaults.minCanvasSize;
|
|
}
|
|
} else if (this.height > this.width && this.height > CesiumHeatmap.defaults.maxCanvasSize) {
|
|
this._factor = this.height / CesiumHeatmap.defaults.maxCanvasSize;
|
|
|
|
if (this.width / this._factor < CesiumHeatmap.defaults.minCanvasSize) {
|
|
this._factor = this.width / CesiumHeatmap.defaults.minCanvasSize;
|
|
}
|
|
} else if (this.width < this.height && this.width < CesiumHeatmap.defaults.minCanvasSize) {
|
|
this._factor = this.width / CesiumHeatmap.defaults.minCanvasSize;
|
|
|
|
if (this.height / this._factor > CesiumHeatmap.defaults.maxCanvasSize) {
|
|
this._factor = this.height / CesiumHeatmap.defaults.maxCanvasSize;
|
|
}
|
|
} else if (this.height < this.width && this.height < CesiumHeatmap.defaults.minCanvasSize) {
|
|
this._factor = this.height / CesiumHeatmap.defaults.minCanvasSize;
|
|
|
|
if (this.width / this._factor > CesiumHeatmap.defaults.maxCanvasSize) {
|
|
this._factor = this.width / CesiumHeatmap.defaults.maxCanvasSize;
|
|
}
|
|
}
|
|
|
|
this.width = this.width / this._factor;
|
|
this.height = this.height / this._factor;
|
|
};
|
|
|
|
/* Set an array of heatmap locations
|
|
*
|
|
* min: the minimum allowed value for the data values
|
|
* max: the maximum allowed value for the data values
|
|
* data: an array of data points in heatmap coordinates and values like {x, y, value}
|
|
*/
|
|
CHInstance.prototype.setData = function (min, max, data) {
|
|
|
|
if (data && data.length > 0 && min !== null && min !== false && max !== null && max !== false) {
|
|
this._heatmap.setData({
|
|
min: min,
|
|
max: max,
|
|
data: data
|
|
});
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
};
|
|
/* Set an array of WGS84 locations
|
|
*
|
|
* min: the minimum allowed value for the data values
|
|
* max: the maximum allowed value for the data values
|
|
* data: an array of data points in WGS84 coordinates and values like { x:lon, y:lat, value }
|
|
*/
|
|
CHInstance.prototype.setWGS84Data = function (min, max, data) {
|
|
|
|
if (data && data.length > 0 && min !== null && min !== false && max !== null && max !== false) {
|
|
var convdata = [];
|
|
|
|
for (var i = 0; i < data.length; i++) {
|
|
var gp = data[i];
|
|
var hp = this.wgs84PointToHeatmapPoint(gp);
|
|
if (gp.value || gp.value === 0) {
|
|
hp.value = gp.value;
|
|
}
|
|
convdata.push(hp);
|
|
}
|
|
return this.setData(min, max, convdata);
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
/* Set whether or not the heatmap is shown on the map
|
|
*
|
|
* s: true means the heatmap is shown, false means the heatmap is hidden
|
|
*/
|
|
CHInstance.prototype.show = function (s) {
|
|
if (this._layer) {
|
|
this._layer.show = s;
|
|
}
|
|
};
|
|
|
|
/* 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: { .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 = 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
|
|
}); |