[udig-devel] Re: FW: Add layer programmatically/1.1 question

[Jody Garnett <jgarnett@xxxxxxxxxxxxxxx>]

My understanding the two are very similar;
- option one sends the AddLayerCommand to the map
- option 2 creates a bunch of layers from the provided list of 
GeoResources and inserts these new layers at the indicated position.

There have been a number of off lists questions about creating and 
managing maps "by hand"; in general you can ignore all the udig stuff 
and create your own MapCommand; in the body of the command you can do 
anything you want...

Jody

Stephen Kilburn wrote:
> To add a layer programmatically,
> http://udig.refractions.net/confluence/display/DEV/How+do+I+add+a+layer+prog
> rammatically says:
>
> -for uDig 1.0:
>   IMap map;
>   map.sendCommandASync(new AddLayerCommand(layer) );
>
> -for uDig 1.1:
>   ApplicationGIS.addLayersToMap(map, layers, startposition, project);
>
> But addLayersToMap takes a List<IGeoResource>, not a List<ILayer>, and when
> I try:
>
>   Layer layer = ProjectFactory.eINSTANCE.createLayer();
>   // ... populate the new layer with geo and styling ...
>   IGeoResource igr = (IGeoResource) layer;
>
> I get a ClassCastException.
>
> Do I need to use the 1.0 syntax to add *layers* or am I missing something?
> (Latter exceedingly likely!)
> _____________________________________________________________
> Stephen Kilburn, GeoPraxis Inc.
>
>
>