On 2017-06-20 at 08:45, Markus Metz wrote:
> Negative values in the drainage direction should only occur at the
> borders of the current region and around NULL cells. Note that if you
> want internal sinks to be drained, you must not use the depression
> option.
I was not using depression option
[mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Ken
Mankoff
Sent: mandag 19. juni 2017 18.36
To: GRASS user list
Subject: [GRASS-user] Filling sinks w/ minimum slope
Hi GRASS list,
I'm interested in filling sinks in a DEM before using r.watershed. I currently
use r.fill.dir.
I've disco
On Tue, Jun 20, 2017 at 10:05 AM, Ken Mankoff wrote:
>
>
> On 2017-06-20 at 06:28, Markus Metz wrote:
> > You don't need to fill sinks with r.watershed, internal sinks are by
> > default drained.
>
> I have negative values in the drainage direction raster produced by
r.watershed in the interior.
On 2017-06-20 at 06:28, Markus Metz wrote:
> You don't need to fill sinks with r.watershed, internal sinks are by
> default drained.
I have negative values in the drainage direction raster produced by r.watershed
in the interior. Is this a bug? Or am I misunderstanding the definition of a
sink
On Mon, Jun 19, 2017 at 10:35 PM, Ken Mankoff wrote:
>
>
> On 2017-06-19 at 18:20, Stefan Blumentrath
wrote:
> > To my knowledge r.watershed does not require to fill sinks in advance,
> > because it has a minimal impact routing for handling (non-real) sinks.
> >
> > Do you have a particular reaso
On 2017-06-19 at 18:20, Stefan Blumentrath wrote:
> To my knowledge r.watershed does not require to fill sinks in advance,
> because it has a minimal impact routing for handling (non-real) sinks.
>
> Do you have a particular reason for your wish to fill the DEM in
> advance?
If I don't fill it,
Hi GRASS list,
I'm interested in filling sinks in a DEM before using r.watershed. I currently
use r.fill.dir.
I've discovered that the SAGA fill command has an option to set a "Minimum
slope gradient to preserve from cell to cell; with a value of zero sinks are
filled up to the spill elevation