Quick clarification - the rest will need to wait :-P > But the most important hint you gave me is the ViewportModel which I hadn't > really been aware of. > > If I add a listener to the ViewportModel, I could do all the Java3D view > platform transformations from this listener. But then the question still is > how the Java3D universe gets populated from the uDig Map.
You can add "listeners" to *anything* in the Map/Layer/Viewportmodel data structure - they are called "adapters" and they are part of the Eclipse Modeling Framework notification system. Jody _______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel
