[osg-users] Generating terrain mesh using 3D points

[Linda Lee]

Hi,

Has anyone tried generating a terrain mesh using 3D points?  Any advice of how 
to get started?  I have some terrain data consisting of 3D points and need to 
develop functions to query the terrain height during runtime.

Thank you!

Cheers,
Linda

--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=37533#37533





___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Re: [osg-users] Generating terrain mesh using 3D points

[Chris 'Xenon' Hanson]

On 3/10/2011 7:21 PM, Linda Lee wrote:
 Has anyone tried generating a terrain mesh using 3D points?  Any advice of 
 how to get started?  I have some terrain data consisting of 3D points and 
 need to develop functions to query the terrain height during runtime.

  You'll need to use a gridding tool to transform this into a regularly sampled 
surface.

  GDAL offers tools to do this.

  You can then query this grid directly, without using OSG, or if you need to 
visualize
the terrain too, use VPB to build an OSG terrain database and use osgSim's 
Height Above
Terrain tools to query it at various locations.

-- 
Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com 
http://www.alphapixel.com/
  Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. 
Contracting.
There is no Truth. There is only Perception. To Perceive is to Exist. - 
Xen
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org