#2980: r.watershed and max_slope_length
---------------------+-------------------------
Reporter: mankoff | Owner: grass-dev@…
Type: defect | Status: new
Priority: normal | Milestone: 7.0.4
Component: Raster | Version: 7.0.1
Keywords: | CPU: OSX/Intel
Platform: MacOSX |
---------------------+-------------------------
I'm not sure if this is a bug, but I think it might be. The
{{{max_slope_length}}} seems to have no effect in the {{{r.watershed}}}
program. Below is an example that should work on the NC data set. I'd
expect there to be different accumulation maps based on setting
{{{max_slope_length}}}, but they appear identical.
{{{
r.mapcalc "rain = 1"
r.watershed -s -a --v elevation=elev_srtm_30m accumulation=acc
drainage=fdir flow=rain
r.watershed -s -a --v elevation=elev_srtm_30m accumulation=acc.len
drainage=fdir.len flow=rain max_slope_length=15
g.gui.mapswipe first=acc second=acc.len
}}}
Also mentioned at https://www.mail-archive.com/grass-
u...@lists.osgeo.org/msg31665.html and
https://gis.stackexchange.com/questions/187312/what-does-the-max-slope-
length-option-do-in-grass-r-watershed
--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2980>
GRASS GIS <https://grass.osgeo.org>
_______________________________________________
grass-dev mailing list
grass-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/grass-dev
