brettwiesner wrote:
> I want to position something (let's say a building) to a terrain.
> Currently I'm getting the Z value for the building doing this with an
> osgUtil::IntersectVisitor and that works fine for static terrains. When
> I run on a paging terrain (like one from osgEarth) and I position the
> building, I get a Z value of the lowest LOD. Then more data pages in and
> the building gets "buried" underground as more accurate data comes
> available.
> What's the most effiecient "ground clamp" things to paging terrain?

  I think you're on the right track. I ran into this before -- the Intersect 
visitor only
goes to the lowest LOD. but I think you could adapt it to be smarter.

> Thanks,
> Brett

Chris 'Xenon' Hanson, omo sanza lettere                  Xenon
PixelSense Landsat processing now available!
"There is no Truth. There is only Perception. To Perceive is to Exist." - Xen
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