On Wed, Jan 16, 2013 at 10:16 AM, Brian Sanjeewa Rupasinghe <jink...@gmail.com> wrote: > Hi, > > I have 2D isolines in GRASS vector format with elevation in an attribute > field called height. > I used v.surf.rst function to create raster DEM. However, after creation, it > outputs a DEM > with value 0 elevation only. The description of the function is given as > below. What would > be the possible cause for this? I am using wingrass 7. > > cheers, Brian. > > v.surf.rst -z input=isoline@TOPOIKDATA zcolumn=height elev=elev_1m
If you want to use elevation values from zcolumn, you should not use the -z flag. Try instead v.surf.rst input=isoline@TOPOIKDATA zcolumn=height elev=elev_1m Also make sure that the computational region extents and resolution are set correctly. HTH, Markus M _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user