git.pond.sub.org Git - eow/blob - static/dojo-release-1.1.1/dojox/charting/plot3d/Bars.js

   1 if(!dojo._hasResource["dojox.charting.plot3d.Bars"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
   2 dojo._hasResource["dojox.charting.plot3d.Bars"] = true;
   3 dojo.provide("dojox.charting.plot3d.Bars");
   4
   5 dojo.require("dojox.charting.plot3d.Base");
   6
   7 (function(){
   8
   9         // reduce function borrowed from dojox.fun
  10         var reduce = function(/*Array*/ a, /*Function|String|Array*/ f, /*Object?*/ o){
  11                 // summary: repeatedly applies a binary function to an array from left
  12                 //      to right; returns the final value.
  13                 a = typeof a == "string" ? a.split("") : a; o = o || dojo.global;
  14                 var z = a[0];
  15                 for(var i = 1; i < a.length; z = f.call(o, z, a[i++]));
  16                 return z;       // Object
  17         };
  18
  19         dojo.declare("dojox.charting.plot3d.Bars", dojox.charting.plot3d.Base, {
  20                 constructor: function(width, height, kwArgs){
  21                         this.depth = "auto";
  22                         this.gap   = 0;
  23                         this.data  = [];
  24                         this.material = {type: "plastic", finish: "dull", color: "lime"};
  25                         if(kwArgs){
  26                                 if("depth" in kwArgs){ this.depth = kwArgs.depth; }
  27                                 if("gap"   in kwArgs){ this.gap   = kwArgs.gap; }
  28                                 if("material" in kwArgs){
  29                                         var m = kwArgs.material;
  30                                         if(typeof m == "string" || m instanceof dojo.Color){
  31                                                 this.material.color = m;
  32                                         }else{
  33                                                 this.material = m;
  34                                         }
  35                                 }
  36                         }
  37                 },
  38                 getDepth: function(){
  39                         if(this.depth == "auto"){
  40                                 var w = this.width;
  41                                 if(this.data && this.data.length){
  42                                         w = w / this.data.length;
  43                                 }
  44                                 return w - 2 * this.gap;
  45                         }
  46                         return this.depth;
  47                 },
  48                 generate: function(chart, creator){
  49                         if(!this.data){ return this; }
  50                         var step = this.width / this.data.length, org = 0,
  51                                 depth = this.depth == "auto" ? step - 2 * this.gap : this.depth,
  52                                 scale = this.height / reduce(this.data, Math.max);
  53                         if(!creator){ creator = chart.view; }
  54                         for(var i = 0; i < this.data.length; ++i, org += step){
  55                                 creator
  56                                         .createCube({
  57                                                 bottom: {x: org + this.gap, y: 0, z: 0},
  58                                                 top:    {x: org + step - this.gap, y: this.data[i] * scale, z: depth}
  59                                         })
  60                                         .setFill(this.material);
  61                         }
  62                 }
  63         });
  64 })();
  65
  66 }