Mega Code Archive
Specify the x, y, height, and width properties of a rectangular range
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Code from Flex 4 Documentation "Using Adobe Flex 4".
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<!-- charts/GetItemsInRangeExample.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="srv.send()" height="600" width="600">
<fx:Declarations>
<!--
View source of the following page to see the structure of the data
that Flex uses in this example.
-->
<mx:HTTPService id="srv"
url="http://aspexamples.adobe.com/chart_examples/medals-xml.aspx" />
<!--
To see data in an HTML table, go to
http://aspexamples.adobe.com/chart_examples/medals.aspx
-->
</fx:Declarations>
<fx:Script>
import mx.charts.chartClasses.ChartBase;
import mx.charts.ChartItem;
import mx.charts.series.items.ColumnSeriesItem;
private function getItems(e:Event):void {
var x:Number = Number(ti1.text);
var y:Number = Number(ti2.text);
var h:Number = Number(ti3.text);
var w:Number = Number(ti4.text);
var r:Rectangle = new Rectangle(x, y, h, w);
// Get an Array of ChartItems in the defined area.
var a:Array = myChart.getItemsInRegion(r);
for (var i:int = 0; i<a.length; i++) {
var myChartItem:ColumnSeriesItem = ColumnSeriesItem(a[i]);
// Make items appear selected.
myChartItem.currentState = "selected";
// Show values of the items that appear selected.
ta1.text += myChartItem.xValue.toString() + "=" + myChartItem.yValue.toString() + "\n";
}
}
</fx:Script>
<s:layout>
<s:VerticalLayout />
</s:layout>
<s:Panel id="p1" title="Selecting Items in Ranges">
<s:layout>
<s:VerticalLayout />
</s:layout>
<mx:ColumnChart id="myChart" height="207" width="350"
showDataTips="true" dataProvider="{srv.lastResult.data.result}"
selectionMode="multiple">
<mx:series>
<mx:ColumnSeries id="series1" yField="gold"
displayName="Gold" selectable="true" />
<mx:ColumnSeries id="series2" yField="silver"
displayName="Silver" selectable="true" />
<mx:ColumnSeries id="series3" yField="bronze"
displayName="bronze" selectable="true" />
</mx:series>
<mx:horizontalAxis>
<mx:CategoryAxis categoryField="country" />
</mx:horizontalAxis>
</mx:ColumnChart>
<mx:Legend dataProvider="{myChart}" direction="horizontal" />
<s:Label text="Specify dimensions of a rectangle:" />
<s:HGroup>
<mx:Form>
<mx:FormItem label="x">
<mx:TextInput id="ti1" text="20" width="50" />
</mx:FormItem>
<mx:FormItem label="y">
<mx:TextInput id="ti2" text="20" width="50" />
</mx:FormItem>
</mx:Form>
<mx:Form>
<mx:FormItem label="Height">
<mx:TextInput id="ti3" text="200" width="50" />
</mx:FormItem>
<mx:FormItem label="Width">
<mx:TextInput id="ti4" text="200" width="50" />
</mx:FormItem>
</mx:Form>
</s:HGroup>
<s:Button label="Select Items Inside Rectangle" click="ta1.text='';getItems(event)" />
<s:TextArea id="ta1" height="100" width="300" />
</s:Panel>
</s:Application>
]]>