>Yes. Before starting the series of steps leading to extracting streams I >set the region to dem10m.agv. The region for dem10m.acc is the same. > > I recalculated the weight map with no errors and this makes me wonder > why >r.stream.extract with the weighted accumulation map throws and error when >r.stream.extract without the weighting does not. > > Re-running each step is an option, but the issue seems related to the >weighted accumulation map so I can re-calculate weights and the weighted >accumulation but I suspect that's not the problem.
tested here with osgeo4w-wingrass6.4.2, spearfish sample dataset [1] and the example from the manual page [2] both, accumulation (A) and weighted (WA) accumulation map, are working: WA: r.stream.extract elevation=elevation.10m@PERMANENT accumulation=elevation.10m.acc.weighed threshold=1000 stream_rast=elevation.10m.streams Load input maps and get start points... Set edge points... A* Search... Extract streams... Thin stream segments... Write raster map (Fri Apr 06 20:35:36 2012) Befehl ausgeführt (6 sec) (Fri Apr 06 20:36:36 2012) A: r.stream.extract elevation=elevation.10m@PERMANENT accumulation=elevation.10m.acc threshold=1000 stream_rast=elevation.10m.streams.noweight Load input maps and get start points... Set edge points... A* Search... Extract streams... Thin stream segments... Write raster map (Fri Apr 06 20:36:42 2012) Befehl ausgeführt (6 sec) HTH Helmut [1] http://grass.osgeo.org/sampledata/spearfish_grass60data-0.3.tar.gz [2] https://svn.osgeo.org/grass/grass-addons/grass6/raster/r.stream.extract/description.html ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.n6.nabble.com/r-stream-extract-Syntax-Problem-tp4690890p4693391.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
