[GRASSLIST:8039] Re: v.surf.idw usage

[Maciek Sieczka]

From: "Stefan Istvan" <stefi at geohidroterv.hu>

> Hello!
> I tried to make an interpolation on a vector map that contains point
> datas with the v.surf.idw command. As I remember, in Grass 5.0.3 I used
> s.surf.idw with two paramters, one for the site map and one for the
> raster map. Now, in 6.0 there is no site commands, so I try to use
> v.surf.idw, but it needs a plus parameter, named "col".
> What this parameter used for? Could somebody please explain it's
> meaning?

"col" is the name of the column where your elevation attributes are stored. 
Each your vector point has to have an according elevation value.

Maciek