xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark"
height="600">
import mx.collections.ArrayCollection;
[Bindable]
private var s1:ArrayCollection = new ArrayCollection( [
{"x": 20, "y": 10, "r":10 },
{"x": 40, "y": 5, "r":20 } ,
{"x": 60, "y": 0, "r":30 }]);
[Bindable]
private var s2:ArrayCollection = new ArrayCollection( [
{"x": 20, "y": 50, "r":2 },
{"x": 40, "y": 75, "r":4 },
{"x": 60, "y": 100, "r":8 } ]);
xField="x" yField="y" radiusField="r" />
xField="x" yField="y" radiusField="r" />