Randomly generating chart data
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<!-- charts/RandomDataGeneration.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
creationComplete="initApp()" height="600">
<fx:Script>
import mx.collections.*;
// Define data provider array for the chart data.
[Bindable]
public var dataSet:ArrayCollection;
// Define the number of elements in the array.
public var dsLength:Number = 10;
public function initApp():void {
// Initialize data provider array.
dataSet = new ArrayCollection(genData());
}
public function genData():Array {
var result:Array = [];
for (var i:int=0;i<dsLength;i++) {
var localVals:Object = {
valueA:Math.random()*100,
valueB:Math.random()*100,
valueX:Math.random()*100,
valueY:Math.random()*100
};
// Push new object onto the data array.
result.push(localVals);
}
return result;
}
</fx:Script>
<s:layout>
<s:VerticalLayout />
</s:layout>
<s:Panel title="Plot Chart">
<s:layout>
<s:VerticalLayout />
</s:layout>
<mx:PlotChart id="myChart" dataProvider="{dataSet}"
showDataTips="true">
<mx:series>
<mx:PlotSeries xField="valueX" yField="valueY"
displayName="Series 1" />
<mx:PlotSeries xField="valueA" yField="valueB"
displayName="Series 2" />
</mx:series>
</mx:PlotChart>
<mx:Legend id="l1" dataProvider="{myChart}" />
</s:Panel>
</s:Application>
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