Amaginary Studios wrote: > > I have been toying with creating 3D surfaces from my vector data > (contour lines) matched to my AirPhotos out of interest. > > My vector file has a category "ELEVATION" with all the z values in > meters. To create a DEM from contour lines, you might try v.to.rast + r.surf.contour see the r.surf.contour help page Hamish