Michael Barton wrote: > Is there anyway to display a TIN in 3D with GRASS? In NVIZ, it just > looks like a Delaunay triangulation network unless there is something > I'm not doing.
Make sure your 3D triangulation output "Map is 3D". AFAIK faces will always be based on a single color (some todo). off on a tangent: As I've ranted on about before, TINs are really just the point data that define them, so in general you'd be much better off extracting the points and using a real interpolation module like v.surf.rst to make a surface from those points. The exception is from e.g. the poster the other day who's point data was not uniformly distributed, density increased by orders of magnitude as you get nearer to an object of interest (dynamic computational mesh size) e.g. http://gfs.sourceforge.net/examples/examples/tangaroa.html v.surf.rst does the same sort of thing during processing for no-data search areas, but the final product there is at the region resolution. The problem the poster the other day had was that the overall grid at a resolution appropriate for the coastal areas would make a massive array when extended to include the oceanic data, and you probably have to make a number of maps each as a different scale. I remember in the past when talking about the GRASS 7 raster format it was mentioned that perhaps Adaptive JPEG-like blocks could be used to save the data instead of row-by-row. This is slightly a perversion of that, but an interesting problem to think about. Hamish ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
