Flex 1.3 - Multiple Calls to Geometry Service not producing output

DaviKucharski

Hello. Below you will see my code for a GeometryService, function to call the GeometryService and the symbol I am using to apply to the graphic the comes out of the result. If I call this function 1 time, the system will product a circle with a radius of whatever my parameter is using the x and y parameters as the center point. The problem is when I call this function multiple times, no graphics will be displayed. The code is still running fine and I believe correctly. Just no circle graphic. I was wondering if there is an issue with calling this multiple times.

Again, if I run the following code a circle appears:
highlightStoresArea(-87.8658, 41.6694, 5)

If I try to run the following statements no graphics. If I comment 1 of them out, circle appears.
highlightStoresArea(-87.8658, 41.6694, 5)
highlightStoresArea(-88.1995, 41.7070, 5)



<esri:GeometryService id="myGeometryService"
url="http://dg2k8esridev1/ArcGISDevelopment/rest/services/Geometry/GeometryServer"/>


public function highlightStoresArea(x:Number, y:Number, radius:Number):void
{
var myMapCenterPoint:Graphic = new Graphic();
myMapCenterPoint.geometry = new MapPoint(x, y, new SpatialReference(4326));
  
             var bufferParameters:BufferParameters = new BufferParameters();               
bufferParameters.features = [myMapCenterPoint];               
bufferParameters.distances = [radius];               
bufferParameters.unit = BufferParameters.UNIT_STATUTE_MILE;               
bufferParameters.bufferSpatialReference = new SpatialReference(4326);               
myGeometryService.addEventListener(GeometryServiceEvent.BUFFER_COMPLETE, bufferCompleteHandler);               
myGeometryService.buffer(bufferParameters);               
  
               function bufferCompleteHandler(event:GeometryServiceEvent):void               
{                   
  myGeometryService.removeEventListener(GeometryServiceEvent.BUFFER_COMPLETE, bufferCompleteHandler);           
  for each (var graphic:Graphic in event.graphics)                   
  {    
   graphic.symbol = sfs;         
   myGraphicsLocationsLayer.add(graphic);
  }
}
}

<esri:SimpleFillSymbol id="sfs" color="0xFF0000" alpha="0.0">       
<esri:SimpleLineSymbol color="0x000000"/>   
</esri:SimpleFillSymbol>

RobertScheitlin__GISP

Davi,

   In your code after the first buffer result is complete you remove the event listener... If you are going to do that then you need to add it back each time you call the highlightStoresArea function.