[GRASS-user] v.to.rast for a vectorial without Values

[Luisa Peña]

Hello Hamish
Regarding the v.centroids it worked. Thanks (and thanks Antonio)...

About v.category I suppose I have to do the following:
1- Create boundaries in TclTk Digitizer
2- v.category input=teste04 at user1 output=output type=boundary,area step=0

3- v.to.rast this and it worked

Before I convert to raster, how can i define all boundaries/with Centroids
with the same cat value?

Thanks

2010/7/27 Hamish <hamish_b at yahoo.com>

> Luisa Peña wrote:
> > I have created a Vectorial using GRASS vector digitizer without
> > categories.
>
> most vector modules require features to have categories if they
> are to be processed.
>
> > How can I add a category to the vectorials in order to agfter
> > that, run v.to.rast?
>
> v.category or v.centroids will do it.
>
> "areas" in GRASS are really boundaries (no category) with a
> centroid point inside them (centroid has the category).
>
>
> regards,
> Hamish
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/grass-user/attachments/20100728/e101e1e2/attachment.html