In the measure lengths sample, I added a button into the info symbol component -- on button click I want clear the graphic layers and thus, the info symbol. The code errs as the button click event cannot see the closeWin() method:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:esri="http://www.esri.com/2008/ags"
initialize="application_initializeHandler(event)"
pageTitle="Draw and Measure lines">
<!--
This sample shows how to measure line distance correctly.
ArcGIS Server 10 adds support for geodesic measurement.
With earlier versions of ArcGIS Server, the "geodesic" property cannot be used.
The "9.3" solution depends on which coordinate system is being using.
If the map uses a geographic coordinate system, the line needs to be projected
into the desired projected coordinate system for calculating the line length.
The geometry service can be used to do the projection.
With ArcGIS Server 10, the geodesic property can be used for easier measurements.
-->
<fx:Script>
<![CDATA[
import com.esri.ags.Graphic;
import com.esri.ags.SpatialReference;
import com.esri.ags.events.DrawEvent;
import com.esri.ags.events.GeometryServiceEvent;
import com.esri.ags.geometry.MapPoint;
import com.esri.ags.geometry.Polyline;
import com.esri.ags.tasks.supportClasses.LengthsParameters;
import mx.events.FlexEvent;
[Bindable]private var latestEndpoint:MapPoint;
private function application_initializeHandler(event:FlexEvent):void
{
drawTool.activate(DrawTool.FREEHAND_POLYLINE);
}
private function drawEndHandler(event:DrawEvent):void
{
var drawnLine:Polyline = Polyline(event.graphic.geometry);
var lengthsParameters:LengthsParameters = new LengthsParameters();
lengthsParameters.geodesic = true;
lengthsParameters.polylines = [ drawnLine ];
latestEndpoint = drawnLine.paths[0][0] as MapPoint;
geometryService.lengths(lengthsParameters);
}
private function lengthsCompleteHandler(event:GeometryServiceEvent):void
{
// Report as meters if less than 3km, otherwise km
var dist:Number = (event.result as Array)[0];
var myAttributes:Object = {};
if (dist < 3000)
{
myAttributes.distance = Math.round(dist) + " meters";
}
else
{
myAttributes.distance = Number(dist / 1000).toFixed(1) + " km";
}
//var g:Graphic = new Graphic(latestEndpoint, new TextSymbol(null, "text3", 0, true, 0, true));
var g:Graphic = new Graphic(latestEndpoint, myInfoSymbol, myAttributes);
resultLayer.add(g);
}
private function closeWin(event:MouseEvent):void
{
trace ("closeWin");
lineLayer.clear();
resultLayer.clear();
}
]]>
</fx:Script>
<fx:Style>
@namespace esri "http://www.esri.com/2008/ags";
esri|InfoSymbolWindow
{
backgroundColor: #FFFF00;
border-color: #6E6F00;
border-thickness: 2;
info-placement: bottom;
}
</fx:Style>
<fx:Declarations>
<esri:InfoSymbol id="myInfoSymbol">
<esri:infoRenderer>
<fx:Component>
<s:DataRenderer>
<s:layout>
<s:HorizontalLayout/>
</s:layout>
<s:Label paddingBottom="3"
paddingLeft="3"
paddingRight="3"
paddingTop="3"
text="This line is {data.distance}"/>
<s:Button id="closeButton" label="X"
width="14" height="14" click="closeWin(event)"/>
</s:DataRenderer>
</fx:Component>
</esri:infoRenderer>
</esri:InfoSymbol>
<esri:GeometryService id="geometryService"
concurrency="last"
lengthsComplete="lengthsCompleteHandler(event)"
showBusyCursor="true"
url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer"/>
<esri:SimpleLineSymbol id="lineSymbol"
width="4"
color="#6E6F00"/>
<esri:DrawTool id="drawTool"
drawEnd="drawEndHandler(event)"
graphicsLayer="{lineLayer}"
lineSymbol="{lineSymbol}"
map="{map}"/>
</fx:Declarations>
<s:controlBarContent>
<s:Label width="100%"
color="#6E6F00"
fontSize="14"
text="Click and hold down on the map to draw a line that will be added to the map. The application will then use the geometry service to calculate the length of the line."/>
</s:controlBarContent>
<esri:Map id="map">
<esri:extent>
<esri:Extent xmin="-13044000" ymin="4035000" xmax="-13039000" ymax="4039000">
<esri:SpatialReference wkid="102100"/>
</esri:Extent>
</esri:extent>
<esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"/>
<esri:GraphicsLayer id="lineLayer"/>
<esri:GraphicsLayer id="resultLayer"/>
</esri:Map>
</s:Application>
Any ideas on this?Thanks,Glen
