Thiessen polygons in GRASS?
charnotw at helios.aston.ac.uk
Tue Oct 8 08:35:09 EDT 1996
> Hello Grass users,
> I wanted to use Thiessen polygons to extrapolate point data to area
> data. Does anyone know of a GRASS procedure to create Thiessen polygons
> in a watershed. Thanks for helping me out!
You can get a raster of theissen polygons by using
s.surf.idw and setting the number of interpolation
points to one.
GRASS 4.1 >s.surf.idw in=sites out=theissen npoints=1
Tom Charnock O--O
Dept Civil Engineering (~~~~)
Aston University ( __ )
Birmingham B4 7ET UK /|\ /|\
charnotw at sun.aston.ac.uk
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