[GRASS-dev] Re: [GRASS GIS] #1584: error in r.walk help page

[GRASS GIS]

#1584: error in r.walk help page
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 Reporter:  hamish  |       Owner:  grass-dev@…              
     Type:  defect  |      Status:  new                      
 Priority:  major   |   Milestone:  6.4.3                    
Component:  Docs    |     Version:  unspecified              
 Keywords:  r.walk  |    Platform:  All                      
      Cpu:  All     |  
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Comment(by dkavanagh):

 My note applies to 6.5 and 7.0. The Langmuir correction applies to all
 versions.

 Replying to [comment:1 dkavanagh]:
 > There is also a mistake in the Standard Directions figure in the
 Movement Direction section. 90 should be immediately below x and the zero
 should be removed.
 >
 > Replying to [ticket:1584 hamish]:
 > > one from Agustin:
 > >
 > > {{{
 > > the documentation in r.walk is wrong. It says:
 > > "The default values for a, b, c, d are those proposed by Langmuir
 > > (0.72, 6.0, 1.9998, -1.9998)"
 > > and it should say:
 > > "The default values for a, b, c, d are those proposed by Langmuir
 > > (0.72, 6.0, -1.9998, 1.9998)"
 > >
 > > because the point is that you go faster on gentle slopes and more
 > > slowly on steeper slopes and those values are in m/s
 > > The worrying question is whether these values are also wrong in the
 > > default values of r.walk.
 > > }}}

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1584#comment:2>
GRASS GIS <http://grass.osgeo.org>