[GRASS-user] help, interpolation of vector results in one value?

Christian Kaiser Christian.Kaiser at unil.ch
Sat Jan 9 14:37:58 EST 2010

If your vector points are already on a grid, you can simply use v.to.rast for conversion.

In every case, check your region. It defines the extent and resolution of the raster you want to create. Check for g.region in the manual. g.manual -p in the command line prints your current settings.

Christian Kaiser

On 9 janv. 2010, at 20:34, James Kebinger wrote:

> Hello, I've imported a vector of points into GRASS - it's approximately a grid with ~24k points according to GRASS. I'm trying to interpolate it, but what ever methods I try (v.surf.idw or v.surf.bspline), the resulting raster is just one point, approximately in the middle of the grid with the average value of the z values. 
> I am able to see the points rendered as a vector field, so the data looks like it's been imported correctly, but I can't figure out this interpolation step.
> Thanks!
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