[GRASS-user] r.watershed - forgot to mask out no data?

[Daniel Victoria]

But the no data on the dem was treated by grass as nodata (when using
d.what.rast). Why mask out what is already nodata?

On Jan 8, 2008 1:35 PM, Markus Neteler <neteler at osgeo.org> wrote:
>
> On Jan 7, 2008 7:40 PM, Daniel Victoria <daniel.victoria at gmail.com> wrote:
> > Hi,
> >
> > After a couple of days I got a successful output from r.watershed.
> > Well, almost successful. Some basins looks very weird, as you can see
> > in the attached file. Is it because I did not mask out the null cells
> > on the dem map (white area on dem30.jpg)?
>
> Right. No data needs to be no data...
>
> Markus
>