[GRASS-user] Importing vectors (polygons) without building topology

[Maciek Sieczka]

On Fri, 23 Jun 2006 07:28:05 +0200
Jarek Jasiewicz <jarekj at amu.edu.pl> wrote:

> Hernán De Angelis napisa?(a):
> > Dear list,
> >
> > I have a bunch of PostGIS layers (polygons) that I want to import
> > into GRASS. These polygons represent palaeogeographic features and
> > therefore they necessarily overlap over some regions (different
> > entities are distinguished by attributes in the attribute table).
> > Since v.in.ogr automatically builds topology by default, a
> > secondary layer is generated during import where the the
> > overlapping sectors of the polygons are cut and stored. Whereas
> > this might be useful for a wide range of applications it is
> > certainly not desirable in my case, since it destroys the
> > palaeogeographic representation. My question is therefore: how can
> > I import these shapefiles and avoid topology building at the same
> > time?

> v.external

Or v.in.ogr -c, ?

Maciek

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