PieChar,此代码参考网上

 

代码

<? xml version = " 1.0 "  encoding = " utf-8 " ?>
< mx:Application xmlns:mx = " http://www.adobe.com/2006/mxml "  layout = " vertical "  width = " 100% "  height = " 100% " >
     < mx:Script >
         <! [CDATA[
             import  mx.charts.series.items.PieSeriesItem;
             import  mx.charts.events.ChartItemEvent;
             import  mx.effects.easing. * ;
            
             private  function perEvent(evt:ChartItemEvent): void {
                var obj:PieSeriesItem  =  evt.hitData.chartItem as PieSeriesItem;
                var dgrees:Number  =  radius(obj.startAngle);
                var arr:Array  =  [];
                 if  (cbox.selected)
                    arr[obj.index]  =   0.2 ;
                pser.perWedgeExplodeRadius  =  arr;     // 块变化
                 // pser.startAngle -= dgrees;             // 转动
                
                pd.refresh();
            }
             private  function radius(n1:Number):Number{
                 return  n1 * ( 180 / Math.PI);
            }
        ]] >
     </ mx:Script >
     <!--  显示的数据集  -->
     < mx:XMLListCollection id = " pd " >
         < mx:source >
             < mx:XMLList xmlns = "" >
                 < product label = " data1 "  data = " 5 " />  
                 < product label = " data2 "  data = " 7 " />  
                 < product label = " data3 "  data = " 1 " />  
                 < product label = " data4 "  data = " 3 " />  
                 < product label = " data5 "  data = " 8 " />  
                 < product label = " data6 "  data = " 4 " />  
                 < product label = " data7 "  data = " 6 " />  
                 < product label = " data8 "  data = " 9 " />  
             </ mx:XMLList >
         </ mx:source >
     </ mx:XMLListCollection >
     < mx:ApplicationControlBar dock = " true "  width = " 400 " >
         < mx:CheckBox id = " cbox "  label = " Selected "  selected = " true "   />
     </ mx:ApplicationControlBar >
     < mx:PieChart id = " p1 "  dataProvider = " {pd} "  showDataTips = " true "  itemClick = " perEvent(event); "   >
         < mx:series >
             < mx:PieSeries id = " pser "  field = " @data "  nameField = " @label " >
                 < mx:showDataEffect >
                     < mx:SeriesInterpolate duration = " 2000 "  easingFunction = " {Elastic.easeOut} "   />
                 </ mx:showDataEffect >
                 < mx:filters >
                     < mx:DropShadowFilter />
                 </ mx:filters >                                 
             </ mx:PieSeries >
         </ mx:series >
     </ mx:PieChart >
     < mx:Legend dataProvider = " {p1} "  direction = " horizontal "   />
</ mx:Application >