[GRASS-user] v.buffer and categories

Markus Metz markus.metz.giswork at gmail.com
Tue Oct 9 08:13:39 PDT 2012

This is fixed only in GRASS 7, here, v.buffer can preserve attributes
in the output. Furthermore, v.buffer in GRASS 6 is not working well,
there are a number of known bugs.

Alternatively, you can delete categories with
v.category option=del cat=-1
followed by
v.category option=add cat=1

Each polygon will then have its own unique category.


Markus M

On Tue, Oct 9, 2012 at 1:40 PM, Martin Album Ytre-Eide
<Martin.Album.Ytre-Eide at nrpa.no> wrote:
> Hello all.
> I have three points for which I create three areas with v.buffer. However,
> this new polygon map have no attribute table - so I create one with
> v.category and v.db.addtable. This gives an attribute table with 3
> categories but they are all linked to all polygons! I won't each polygon to
> have a separate category.
> Anyone knows what to do?
> Martin
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