[GRASSLIST:4989] Re: Interpolation of points in PostGIS database

[Markus Neteler]

On Fri, Nov 26, 2004 at 04:06:46PM +0100, Bernhard Reimar Hoefle wrote:
> Hi!
> How can I interpolate point data (to a raster) which is stored in a PostGIS
> database directly in GRASS.
> I don't want to import the data to the GRASS location with v.in.db. I want GRASS
> to use the points directly for the interpolation. There should be no data transfer.

I assume that you can use
 v.external
 http://grass.itc.it/grass57/manuals/html57_user/v.external.html

to virtually link the map, then use v.surf.idw/v.surf.rst/v.vol.rst
to interpolate.

Hope this helps

 Markus