topic Re: drawinginfo.renderer.symbol.source... in ArcGIS API for Flex Questions

drawinginfo.renderer.symbol.source...

RoyceSimpson — Thu, 01 Jul 2010 21:11:19 GMT

At beta, update 3, I was doing with success...
item.legendImage = o.drawingInfo.renderer.symbol.source;

to get the image source url string for point features.

Now the "source" property returns a ByteArray and crashes the app.

I was using the string to populate a custom Item object as show above. Then using the item in a List object for a custom legend/TOC.

How can I do the same thing now with a ByteArray? I notice that what used to be a url with PNG file is now like this:
"http://hiatus/ArcGIS/rest/services/dev/EM_Assets/MapServer/32/images/C8D05CC1"

Anyway, I'd just like to be able to use the drawinginfo property (or whatever property would have the image path for point features) for the point symbol.

Thanks much.

Re: drawinginfo.renderer.symbol.source...

RoyceSimpson — Thu, 01 Jul 2010 21:14:00 GMT

Here is more verbose code snippet for what I was doing successfully at beta update3...

   protected function titlewindow1_creationCompleteHandler(event:FlexEvent):void
   {
    emLayerList.selectedIndices = selectedIndices;

    emAssetLayer.getAllDetails(new AsyncResponder(onResult, onFault));
   }
   private function onResult(allDetailsResult:AllDetails, token:Object = null):void
   {
    _emLayerDetails=allDetailsResult.layersDetails;

    _emLayerListDataProvider = new ArrayCollection;

    for each (var o:Object in _emLayerDetails)
    {
     var item:Item = new Item;
     item.layerID = o.id;
     item.name = o.name;
      if (o.geometryType == "esriGeometryPoint")
     {
      item.legendImage = o.drawingInfo.renderer.symbol.source;
     }
     _emLayerListDataProvider.addItem(item);
    }

   }

Re: drawinginfo.renderer.symbol.source...

DasaPaddock — Thu, 01 Jul 2010 21:22:45 GMT

You could call http://help.arcgis.com/en/webapi/flex/apiref/com/esri/ags/symbols/Symbol.html#createSwatch() or pass the ByteArray to the Flex Image component as it's source.

Re: drawinginfo.renderer.symbol.source...

RoyceSimpson — Fri, 02 Jul 2010 14:47:12 GMT

You could call http://help.arcgis.com/en/webapi/flex/apiref/com/esri/ags/symbols/Symbol.html#createSwatch() or pass the ByteArray to the Flex Image component as it's source.

Thanks Dasa,
I've got the ByteArray working... what would be an example usage of the createSwatch method? How would I use the resulting object as the source from an Image?

Re: drawinginfo.renderer.symbol.source...

DasaPaddock — Fri, 02 Jul 2010 15:28:24 GMT

You can just add the UIComponent returned by createSwatch() to a container to view a representation of the symbol.