[GRASS-user] Spatial join of points to polygon

Patrick_schirmer patrick_GIS at gmx.ch
Fri Aug 27 11:48:00 EDT 2010


Dear all,

Unfortunately I am not really used to work with GRASS so this might be a 
rookie-question. But I am not able to solve it alone, don't find any 
hint on the net and thus will need your help:
I got a map of polygones and a map of points. My aim is to sum up the 
attributes of a defined column in the point-map to the polygone where 
they are lying in. So what I am looking for is a function saying 
'spatial join' of polygons and points with the options 'contains' by 
using the function 'sum'. The only thing I can find will be v.what.vect. 
which will allow to give the point the value of the polygone, but not 
the other way round.

Is there a simple solution to that question within GRASS6.4? (I think 
QGIS is having this option, but I would like to solve it within GRASS6.4).

Thanks for your help!

Patrick


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