[GRASS-dev] [GRASS GIS] #2664: The r.watershed module documentation has the wrong value for cells that do not get included in a complete watershed.

GRASS GIS trac at osgeo.org
Sat Apr 25 18:20:39 PDT 2015


#2664: The r.watershed module documentation has the wrong value for cells that do
not get included in a complete watershed.
-------------------------------------+-------------------------
 Reporter:  swendel621               |      Owner:  grass-dev@…
     Type:  defect                   |     Status:  new
 Priority:  normal                   |  Milestone:  7.0.1
Component:  Docs                     |    Version:  7.0.0
 Keywords:  r.watershed, basin, doc  |        CPU:  All
 Platform:  All                      |
-------------------------------------+-------------------------
 In the current online r.watershed module's help documentation, there is a
 conflicting statement to the output generated for the basin parameter.

 [http://grass.osgeo.org/grass71/manuals/r.watershed.html]

 In the text it says, "0 values indicate that the cell is not part of a
 complete watershed basin in the current geographic region."

 If I run r.watershed on the Elevation sample data and set the threshold to
 10000, the output basin will have areas on the edges that do not generate
 a basin. The values of these areas are null instead of 0 like the
 documentation makes it sounds like it should get. It makes sense for the
 values to be null instead of 0 so the documentation needs to be updated.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2664>
GRASS GIS <http://grass.osgeo.org>



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