Hi Tony,
Just wondering....
If QGIS is using SAGA to do the work, have you considered installing SAGA &
using it directly?
Brent Wood
Principal Technician, Fisheries
NIWA
DDI: +64 (4) 3860529
________________________________
From: Qgis-user <qgis-user-boun...@lists.osgeo.org> on behalf of Tony Shepherd
(FarmMaps NZ) via Qgis-user <qgis-user@lists.osgeo.org>
Sent: Wednesday, November 9, 2022 11:04
To: 'Qgis Users List' <qgis-user@lists.osgeo.org>
Subject: [Qgis-user] Watershed - Catchment area upstream of a point
Hi All
I’m wanting to use a DEM/DTM to automatically map the watershed/catchment area
upstream of a known point.
After a bit of reading, this appears to be a not-so-simple task but suggestions
are to use the “Upslope Area” algorithm.
In my case, the program fails to finish running, and the message window shows
the following error:
SAGA Version: 7.8.2 (64 bit)
Error: tool needs graphical user interface [Upslope Area]
C:\Users\Tony\Documents>exit
Questions:
* Does anybody know what that error means?
* Is there another tool/method that is preferable to use?
Cheers
Tony
Tony Shepherd | GeoSpatial / Mapping Manager
Ph 027 435 6193 | E t...@farmmaps.nz<mailto:t...@farmmaps.nz> | W
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Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
+64-4-386-0529
National Institute of Water & Atmospheric Research Ltd (NIWA)
301 Evans Bay Parade Hataitai Wellington New Zealand
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