[GRASS-dev] Re: [GRASS GIS] #617: r.sim.water crashes on WinGrass

GRASS GIS trac at osgeo.org
Wed Jan 27 17:55:18 EST 2010


#617: r.sim.water crashes on WinGrass
---------------------------+------------------------------------------------
  Reporter:  hamish        |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect        |      Status:  new                      
  Priority:  normal        |   Milestone:  6.4.0                    
 Component:  Raster        |     Version:  6.4.0 RCs                
Resolution:                |    Keywords:  wingrass, r.sim.water    
  Platform:  MSWindows XP  |         Cpu:  x86-32                   
---------------------------+------------------------------------------------
Comment (by huhabla):

 I have hardly tried to find the error using valgrind, but was
 unsuccessful.
 Neither the grass6.4 version nor the grass7 version showing any suspicious
 behavior on 32bit Linux.
 So i don't know if my changes may have solved the problem, but it would be
 great, if anybody may
 compile the latest grass7 version on MacOS or Windows for testing, running
 the speafish60 example.

 Helena can you please provide a simple spearfish example for
 r.sim.sediment, so i can test my changes with this module?

 BTW: Is it possible to add the water depth in every step to the elevation
 map and additionally  computing the direction derivatives dx and dy to
 avoid infinite water accumulation in sinks and pits? I suggest this will
 make the solution of the partial differential equation non linear, but
 maybe the time steps are already small enough to implement this as an
 explicit step?

 Soeren

-- 
Ticket URL: <https://trac.osgeo.org/grass/ticket/617#comment:5>
GRASS GIS <http://grass.osgeo.org>


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