190 lines
6.1 KiB
JavaScript
190 lines
6.1 KiB
JavaScript
//>>built
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define("dojox/charting/plot2d/Scatter", ["dojo/_base/lang", "dojo/_base/array", "dojo/_base/declare", "./Base", "./common",
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"dojox/lang/functional", "dojox/lang/functional/reversed", "dojox/lang/utils", "dojox/gfx/fx", "dojox/gfx/gradutils"],
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function(lang, arr, declare, Base, dc, df, dfr, du, fx, gradutils){
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/*=====
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var Base = dojox.charting.plot2d.Base;
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=====*/
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var purgeGroup = dfr.lambda("item.purgeGroup()");
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return declare("dojox.charting.plot2d.Scatter", Base, {
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// summary:
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// A plot object representing a typical scatter chart.
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defaultParams: {
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hAxis: "x", // use a horizontal axis named "x"
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vAxis: "y", // use a vertical axis named "y"
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shadows: null, // draw shadows
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animate: null // animate chart to place
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},
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optionalParams: {
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// theme component
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markerStroke: {},
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markerOutline: {},
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markerShadow: {},
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markerFill: {},
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markerFont: "",
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markerFontColor: ""
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},
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constructor: function(chart, kwArgs){
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// summary:
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// Create the scatter plot.
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// chart: dojox.charting.Chart
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// The chart this plot belongs to.
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// kwArgs: dojox.charting.plot2d.__DefaultCtorArgs?
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// An optional keyword arguments object to help define this plot's parameters.
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this.opt = lang.clone(this.defaultParams);
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du.updateWithObject(this.opt, kwArgs);
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du.updateWithPattern(this.opt, kwArgs, this.optionalParams);
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this.series = [];
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this.hAxis = this.opt.hAxis;
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this.vAxis = this.opt.vAxis;
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this.animate = this.opt.animate;
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},
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render: function(dim, offsets){
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// summary:
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// Run the calculations for any axes for this plot.
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// dim: Object
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// An object in the form of { width, height }
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// offsets: Object
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// An object of the form { l, r, t, b}.
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// returns: dojox.charting.plot2d.Scatter
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// A reference to this plot for functional chaining.
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if(this.zoom && !this.isDataDirty()){
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return this.performZoom(dim, offsets);
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}
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this.resetEvents();
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this.dirty = this.isDirty();
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if(this.dirty){
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arr.forEach(this.series, purgeGroup);
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this._eventSeries = {};
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this.cleanGroup();
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var s = this.group;
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df.forEachRev(this.series, function(item){ item.cleanGroup(s); });
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}
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var t = this.chart.theme, events = this.events();
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for(var i = this.series.length - 1; i >= 0; --i){
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var run = this.series[i];
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if(!this.dirty && !run.dirty){
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t.skip();
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this._reconnectEvents(run.name);
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continue;
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}
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run.cleanGroup();
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if(!run.data.length){
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run.dirty = false;
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t.skip();
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continue;
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}
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var theme = t.next("marker", [this.opt, run]), s = run.group, lpoly,
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ht = this._hScaler.scaler.getTransformerFromModel(this._hScaler),
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vt = this._vScaler.scaler.getTransformerFromModel(this._vScaler);
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if(typeof run.data[0] == "number"){
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lpoly = arr.map(run.data, function(v, i){
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return {
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x: ht(i + 1) + offsets.l,
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y: dim.height - offsets.b - vt(v)
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};
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}, this);
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}else{
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lpoly = arr.map(run.data, function(v, i){
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return {
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x: ht(v.x) + offsets.l,
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y: dim.height - offsets.b - vt(v.y)
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};
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}, this);
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}
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var shadowMarkers = new Array(lpoly.length),
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frontMarkers = new Array(lpoly.length),
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outlineMarkers = new Array(lpoly.length);
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arr.forEach(lpoly, function(c, i){
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var finalTheme = typeof run.data[i] == "number" ?
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t.post(theme, "marker") :
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t.addMixin(theme, "marker", run.data[i], true),
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path = "M" + c.x + " " + c.y + " " + finalTheme.symbol;
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if(finalTheme.marker.shadow){
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shadowMarkers[i] = s.createPath("M" + (c.x + finalTheme.marker.shadow.dx) + " " +
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(c.y + finalTheme.marker.shadow.dy) + " " + finalTheme.symbol).
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setStroke(finalTheme.marker.shadow).setFill(finalTheme.marker.shadow.color);
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if(this.animate){
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this._animateScatter(shadowMarkers[i], dim.height - offsets.b);
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}
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}
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if(finalTheme.marker.outline){
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var outline = dc.makeStroke(finalTheme.marker.outline);
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outline.width = 2 * outline.width + finalTheme.marker.stroke.width;
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outlineMarkers[i] = s.createPath(path).setStroke(outline);
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if(this.animate){
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this._animateScatter(outlineMarkers[i], dim.height - offsets.b);
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}
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}
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var stroke = dc.makeStroke(finalTheme.marker.stroke),
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fill = this._plotFill(finalTheme.marker.fill, dim, offsets);
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if(fill && (fill.type === "linear" || fill.type == "radial")){
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var color = gradutils.getColor(fill, {x: c.x, y: c.y});
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if(stroke){
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stroke.color = color;
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}
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frontMarkers[i] = s.createPath(path).setStroke(stroke).setFill(color);
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}else{
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frontMarkers[i] = s.createPath(path).setStroke(stroke).setFill(fill);
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}
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if(this.animate){
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this._animateScatter(frontMarkers[i], dim.height - offsets.b);
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}
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}, this);
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if(frontMarkers.length){
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run.dyn.stroke = frontMarkers[frontMarkers.length - 1].getStroke();
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run.dyn.fill = frontMarkers[frontMarkers.length - 1].getFill();
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}
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if(events){
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var eventSeries = new Array(frontMarkers.length);
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arr.forEach(frontMarkers, function(s, i){
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var o = {
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element: "marker",
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index: i,
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run: run,
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shape: s,
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outline: outlineMarkers && outlineMarkers[i] || null,
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shadow: shadowMarkers && shadowMarkers[i] || null,
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cx: lpoly[i].x,
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cy: lpoly[i].y
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};
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if(typeof run.data[0] == "number"){
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o.x = i + 1;
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o.y = run.data[i];
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}else{
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o.x = run.data[i].x;
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o.y = run.data[i].y;
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}
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this._connectEvents(o);
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eventSeries[i] = o;
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}, this);
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this._eventSeries[run.name] = eventSeries;
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}else{
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delete this._eventSeries[run.name];
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}
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run.dirty = false;
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}
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this.dirty = false;
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return this; // dojox.charting.plot2d.Scatter
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},
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_animateScatter: function(shape, offset){
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fx.animateTransform(lang.delegate({
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shape: shape,
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duration: 1200,
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transform: [
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{name: "translate", start: [0, offset], end: [0, 0]},
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{name: "scale", start: [0, 0], end: [1, 1]},
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{name: "original"}
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]
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}, this.animate)).play();
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}
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});
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});
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