Hi, just to add to what others have already said; it is better to reproject to your target projection _before_ doing the rasterization step, that way you avoid the generational loss from r.proj. Try to import them directly as points into your target location.
So methods could be: xyz.txt -> v.in.ascii -> v.proj -> v.surf.rst (for many millions of input points use the v.in.ascii -zbt flags) or xyz.txt -> m.proj (or cs2cs) -> r.in.xyz -> r.surf.nnbathy (addon) r.in.xyz is very good at creating DEM cells at points with known data, but it does not do any interpolation, you need the r.surf.nnbathy module (or another r.surf.* or v.surf.* module) to fill in the gaps. good luck, Hamish _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
