[GRASS-user] Query: number of 'areas' reported in v.build output does not necessarily represent different geographical areas

Markus Metz markus.metz.giswork at gmail.com
Fri May 10 00:11:09 PDT 2013

On Fri, May 10, 2013 at 8:14 AM, RichardC <richtcooper at hotmail.com> wrote:
> I should rephrase my question, as Markus indicated that GRASS doesn't have
> tools to resolve:

You could try a dissolve:

v.category op=add cat=1 step=0 type=centroid layer=3
v.extract -d layer=3 type=area

optionally add new categories as unique ids to layer 1:
v.category op=del cat=-1 step=0 type=centroid layer=1
v.category op=add cat=1 step=1 type=centroid layer=1


Markus M

> Is there any automated way outside GRASS (if not within) of removing the
> overlaps, as they appear quite extensive?
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