数据源改变后,BarChart组件的运动效果

http://www.cnblogs.com/xxcainiao/archive/2008/04/26/1172463.html

 

showDataEffect属性.
barSeries.xField 属性
barSeries.displayName 属性

示例:


代码:

<? xml version="1.0" encoding="utf-8" ?>
<!--  http://blog.flexexamples.com/2007/10/15/using-data-effects-to-animate-chart-data/  -->
< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"
        layout
="vertical"
        verticalAlign
="middle"
        backgroundColor
="white" >

    
< mx:Script >
        
<![CDATA[
            private function updateDP():void {
                var str:String = categoryFieldComboBox.selectedItem.data;
                barSeries.xField = str;
                barSeries.displayName = str;
            }
        
]]>
    
</ mx:Script >

    
< mx:SeriesInterpolate  id ="seriesInterpolate"  duration ="1000"   />
    
< mx:SeriesSlide  id ="seriesSlide"  duration ="1000"  direction ="right"   />
    
< mx:SeriesZoom  id ="seriesZoom"  duration ="1000"   />

    
< mx:Array  id ="dataEffects" >
        
< mx:Object  label ="seriesInterpolate"  data =" {seriesInterpolate} "   />
        
< mx:Object  label ="seriesSlide"  data =" {seriesSlide} "   />
        
< mx:Object  label ="seriesZoom"  data =" {seriesZoom} "   />
    
</ mx:Array >

    
< mx:Array  id ="categoryFields" >
        
< mx:Object  data ="obp"  label ="OBP"   />
        
< mx:Object  data ="slg"  label ="SLG"   />
        
< mx:Object  data ="avg"  label ="AVG"   />
    
</ mx:Array >

    
< mx:ArrayCollection  id ="arrColl" >
        
< mx:source >
            
< mx:Array >
                
< mx:Object  name ="R Winn"  obp =".353"  slg =".445"  avg =".300"   />
                
< mx:Object  name ="P Feliz"  obp =".290"  slg =".418"  avg =".253"   />
                
< mx:Object  name ="O Vizquel"  obp =".305"  slg =".316"  avg =".246"   />
                
< mx:Object  name ="B Molina"  obp =".298"  slg =".433"  avg =".276"   />
                
< mx:Object  name ="R Durham"  obp =".295"  slg =".343"  avg =".218"   />
            
</ mx:Array >
        
</ mx:source >
    
</ mx:ArrayCollection >

    
< mx:ApplicationControlBar  dock ="true" >
        
< mx:Form >
            
< mx:FormItem  label ="categoryField:" >
                
< mx:ComboBox  id ="categoryFieldComboBox"
                    dataProvider
=" {categoryFields} "
                        change
="updateDP();"   />
            
</ mx:FormItem >
            
< mx:FormItem  label ="showDataEffect:" >
                
< mx:ComboBox  id ="showDataEffectComboBox"
                        dataProvider
=" {dataEffects} "
                        change
="updateDP();"   />
            
</ mx:FormItem >
        
</ mx:Form >
    
</ mx:ApplicationControlBar >

     
< mx:BarChart  id ="barChart"
             showDataTips
="true"
             dataProvider
=" {arrColl} "
             width
="100%"
             height
="100%" >
        
< mx:verticalAxis >
            
< mx:CategoryAxis  categoryField ="name" />
        
</ mx:verticalAxis >
        
< mx:series >
            
< mx:BarSeries  id ="barSeries"
                    yField
="name"
                    xField
="obp"
                    displayName
="obp"
                    showDataEffect
=" {showDataEffectComboBox.selectedItem.data} "   />
        
</ mx:series >
    
</ mx:BarChart >

</ mx:Application >

 

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