[GRASS-user] Rectangle as neighbourhood to point

Hamish hamish_nospam at yahoo.com
Wed Aug 15 22:12:42 EDT 2007

Martin Besta wrote:
> I tried to make rectangular neighbourhood for points in regular grid
> with v.voronoi. I need for each point his rectangular neighbourhood
> 300x300m (distance between points is 300m). But v.voronoi has made
> this square only for some of them.  This is result
> http://best.krajinari.com/voronoi.png.
> v.info gives folloving information for both layer (points and voronoi
> polygons):
> points:
> Number of points: 7873
> polygons:
> Number of centroids:7873
> Number of areas:2619
> For my work is circle sufficient too, but square would be the best
> solution. I tried also other possibilities as buffer (only circle and
> all neighbourhood as one polygon), v.neighbors gives me also circle
> neighbourhood in raster (which I need as sampling area in r.le, or
> r.li ) but each cell has only 1 as value. I need for every
> neighborhood unique value. 

how about v.mkgrid + v.select or v.overlay?


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