flex报表-饼状图

 
<?xml version="1.0"?>
<!-- Simple example to demonstrate the PieChart control. -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:Script>
        <![CDATA[          
        import mx.collections.ArrayCollection;

        [Bindable]
        private var medalsAC:ArrayCollection = new ArrayCollection( [
            { Country: "USA",Gold: 35,Silver:39,Bronze: 29 },{ Country: "China",Gold: 32,Silver:17,Bronze: 14 },{ Country: "Russia",Gold: 27,Silver:27,Bronze: 38 } ]);
    
        private function displayGold(data:Object,field:String,index:Number,percentValue:Number):String {
            var temp:String= (" " + percentValue).substr(0,6);
            return data.Country + ": " + 'n' + "Total Gold: " + data.Gold + 'n' + temp + "%";
        }
        ]]>
    </mx:Script>

    <!-- Define custom colors for use as pie wedge fills. -->
    <mx:SolidColor id="sc1" color="blue" alpha=".6"/>
    <mx:SolidColor id="sc2" color="red" alpha=".6"/>
    <mx:SolidColor id="sc3" color="0x663300" alpha=".6"/>

    <!-- This Stroke is used for the callout lines. -->
    <mx:Stroke id="callouts" weight="2" color="0x999999" alpha=".8" caps="square"/>
    
    <!-- This Stroke is used to separate the wedges in the pie. -->
    <mx:Stroke id="radial" weight="1" color="0xFFFFCC" alpha=".3"/>

    <!-- This Stroke is used for the outer border of the pie. -->
    <mx:Stroke id="pieborder" color="0x000000" weight="2" alpha=".5"/>


    <mx:Panel title="Olympics 2004 Medals Tally Panel" height="100%" width="100%">
        <mx:PieChart id="chart" 
            height="100%" 
            width="100%"
            paddingRight="5" 
            paddingLeft="5" 
            showDataTips="true" 
            dataProvider="{medalsAC}"
        >          
            <!--
            -->
            <mx:series>
                <mx:PieSeries 
                    nameField="Country"
                    labelPosition="callout" 
                    field="Gold" 
                    labelFunction="displayGold" 
                    calloutStroke="{callouts}" 
                    radialStroke="{radial}" 
                    stroke="{pieborder}"
                    fills="{[sc1,sc2,sc3]}"
                >
                    <!-- Clear the drop shadow filters from the chart. -->
                    <mx:filters>
                        <mx:Array/>
                    </mx:filters>
                </mx:PieSeries>
            </mx:series>
        </mx:PieChart>  
        <mx:Legend dataProvider="{chart}"/>
    </mx:Panel>
</mx:Application>