[GRASS-user] Fwd: concentric circles/regions in vector

Hamish hamish_nospam at yahoo.com
Tue Feb 20 22:23:05 EST 2007

Joel Pitt wrote:
> This creates a vector map with concentric circles, but I am unable to
> select them using "year=2000" - only a point/centroid shows up.
> So my question is whether vector types other than centroids/points can
> link to a row in a database table?

Yes, but they must have a category number to be referenced by.

Use v.category to do that; use v.type first if you have boundaries
which you want to become lines.


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