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