ajax读取数据后使用jqchart显示图表的方法_javascript技巧

//各DIV作成 
// 取消标题显示 
/* 
this.titleBox//Title 
  =this.mkBoxElement('T', 
   this.op.titleLeft,this.op.titleTop 
  ).appendTo(this.jQcanvasBox) 
  .css('width',this.op.width-this.op.titleLeft)
  //fix for safari3 2007.12.4 
  .get(0); 
*/ 
// 取消y轴数字显示 
/* 
this.scaleYBox//Y軸スケール 
  =this.mkBoxElement('Y', 
   this.op.scaleYLeft,this.op.scaleYTop 
  ).appendTo(this.jQcanvasBox).get(0); 
*/ 
// 取消x轴分类显示 
/* 
this.scaleXBox//X軸スケール 
  =this.mkBoxElement('X', 
   this.op.scaleXLeft,this.op.scaleXTop 
).appendTo(this.jQcanvasBox).get(0); 
*/

if( x <= op.width){ 
 var dx=x-op.paddingL,dy=y-op.paddingT; 
 var dxx = i<=0 ? (dx+op.labelDataOffsetX - 5 + 'px'):( dx+op.labelDataOffsetX - 20 + 'px'); //坐标点x轴偏移 
 var dyy = i%2 ? (dy+op.labelDataOffsetY - 25 + 'px'):(dy+op.labelDataOffsetY - 5 + 'px'); //坐标点y轴偏移 
 it.wrtText( 
  //dx+op.labelDataOffsetX - 20 + 'px', 
  dxx, 
  //dy+op.labelDataOffsetY - 10 + 'px', 
  dyy, 
  //op.rows[i],  // pre: 坐标点data值 
  op.txtpointers[i], // cychai:坐标点文字 
  op, 
  "#jQchart-data-D-"+op.id 
 ).css('color',(op.data.length==1)?'#333':strokeStyle) 
 .css({"width":"100px","font-size":"12px"}); // cychai:样式控制 

$(function(){ 
 $.ajax({ 
  url: "chartdata.html", 
  type: "GET", 
  success: function(cdata){ 
   showDDChart(cdata); 
  } 
 }); 
 function showDDChart(cdata){ 
  var dd_chart = eval(cdata)[0]; 
  var chartSetting={ 
   config : {  
    title : "",  
    titleLeft: 70,  
    labelX :dd_chart.labelX,  
    //labelX :["外观设计","便携性","易用性","电池待机","摄像功能","变焦"], 
    scaleY : {min: 0,max:10,gap:2}, 
    width: 300+25,  
    height: 125+50,  
    paddingL : 10,  
    paddingT : 10  
   },  
   //data: [[5,3,1,8,4,9]] 
   data :dd_chart.data 
  };  
  $('#canvasMyID').jQchart(chartSetting); 
 } 
});