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67 lines
1.9 KiB
JavaScript
67 lines
1.9 KiB
JavaScript
15 years ago
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dojo.provide("dojox.charting.plot3d.Cylinders");
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dojo.require("dojox.charting.plot3d.Base");
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(function(){
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// reduce function borrowed from dojox.fun
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var reduce = function(/*Array*/ a, /*Function|String|Array*/ f, /*Object?*/ o){
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// summary: repeatedly applies a binary function to an array from left
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// to right; returns the final value.
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a = typeof a == "string" ? a.split("") : a; o = o || dojo.global;
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var z = a[0];
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for(var i = 1; i < a.length; z = f.call(o, z, a[i++]));
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return z; // Object
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};
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dojo.declare("dojox.charting.plot3d.Cylinders", dojox.charting.plot3d.Base, {
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constructor: function(width, height, kwArgs){
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this.depth = "auto";
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this.gap = 0;
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this.data = [];
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this.material = {type: "plastic", finish: "shiny", color: "lime"};
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this.outline = null;
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if(kwArgs){
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if("depth" in kwArgs){ this.depth = kwArgs.depth; }
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if("gap" in kwArgs){ this.gap = kwArgs.gap; }
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if("material" in kwArgs){
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var m = kwArgs.material;
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if(typeof m == "string" || m instanceof dojo.Color){
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this.material.color = m;
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}else{
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this.material = m;
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}
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}
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if("outline" in kwArgs){ this.outline = kwArgs.outline; }
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}
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},
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getDepth: function(){
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if(this.depth == "auto"){
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var w = this.width;
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if(this.data && this.data.length){
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w = w / this.data.length;
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}
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return w - 2 * this.gap;
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}
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return this.depth;
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},
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generate: function(chart, creator){
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if(!this.data){ return this; }
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var step = this.width / this.data.length, org = 0,
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scale = this.height / reduce(this.data, Math.max);
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if(!creator){ creator = chart.view; }
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for(var i = 0; i < this.data.length; ++i, org += step){
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creator
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.createCylinder({
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center: {x: org + step / 2, y: 0, z: 0},
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radius: step / 2 - this.gap,
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height: this.data[i] * scale
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})
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.setTransform(dojox.gfx3d.matrix.rotateXg(-90))
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.setFill(this.material).setStroke(this.outline);
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}
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}
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});
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})();
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