[GRASS-user] Buffered categories

Hamish hamish_b at yahoo.com
Fri Feb 24 03:30:53 EST 2012

Richard wrote:
> rather than the 47 categories I need (because there are 47
> distinct  areas in the buffer.
> So: how do I reassign the cats so there are 47 instead of 1
> in the buffer?

# get rid of the old
v.category type=centroid op=del
# create some new sequential ones
v.category type=centroid op=add cat=1 step=1

(cat= is the number it starts counting from)

if you need the cat to match the seed point, use v.distance as earlier
suggested. and do beware of what becomes of overlapping areas.


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