[GRASS-user] getting a polygone outline of raster areas

[Glynn Clements]

Tim Michelsen wrote:

> I have a raster which was calculated from r.mapcalc and therefore contains areas
> with NULL values.
> 
> Is there any procedure I can use to get an raster (or better vector) with the
> outline of all coherent or connected areas where the raster values are not NULL?

r.to.vect

-- 
Glynn Clements <glynn at gclements.plus.com>