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

[Markus Neteler]

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