[osg-users] blend vpb & osgGIS models

[MingWei]

Hi!
  I am learning about the VirtualPlanetBuilder and osgGIS, both are necessary for the Geography Infomation system, I want to know how to use them together, When I use the osggis_viewer application, I cannot find the right way to display the osgGis models and VPB models together, my data include global image, dem and the world courtys polygon vector. 
 
  I want to add the vector as a layer, and blend the vector with the terrain and adjust the transparency. Can I did that using osgGIS? Any one can tell me the right way.
 
  Thanks.
 
 
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