itemrenderer.mxml

chart应用蛮广泛的

<?xml version="1.0" encoding="utf-8"?>
<ex:ExampleBase  xmlns:ex="examples.*" xmlns="http://www.adobe.com/2006/mxml">

	<Script>
		<![CDATA[
			import mx.charts.series.PlotSeries;

			import mx.charts.renderers.*;

			override public function get descriptions():Array {
				return ["a simple one series bubble chart chart"];
			}

			[Bindable] public var rvalues:Array = [
				{label:"diamond", value: new ClassFactory(DiamondItemRenderer)},
				{label:"circle", value: new ClassFactory(CircleItemRenderer)},
				{label:"box", value: new ClassFactory(BoxItemRenderer)},
				{label:"triangle", value: new ClassFactory(TriangleItemRenderer)},

			];
			public function replaceSeries():void
			{
				var ps:PlotSeries = new PlotSeries();
				ps.yField="revenue";
				ps.xField="costs";
				ps.setStyle("radius",8);
				ps.setStyle("itemRenderer",rui.selectedItem.value);
				chart.series = [ps];
			}
		]]>
	</Script>

	<Model id="dataSet" source="/data/sampleData.xml" />

	<ex:controls>
		<Label text="renderer:" />
		<ComboBox dataProvider="{rvalues}" id="rui" change="replaceSeries()"/>
	</ex:controls>
	<PlotChart id="chart" width="100%" height="100%" dataProvider="{dataSet.Sample}">
		<series>
			<PlotSeries yField="revenue" xField="costs" radius="8" itemRenderer="{rui.selectedItem.value}" />
		</series>
	</PlotChart>

</ex:ExampleBase>