[GRASS-dev] Re: [GRASS GIS] #807: r.watershed doesnt consider longer distance to diagonal neighbouring pixels

[GRASS GIS]

#807: r.watershed doesnt consider longer distance to diagonal neighbouring pixels
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  Reporter:  aread   |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect  |      Status:  new                      
  Priority:  major   |   Milestone:  6.4.0                    
 Component:  Raster  |     Version:  6.4.0 RCs                
Resolution:          |    Keywords:  r.watershed              
  Platform:  All     |         Cpu:  All                      
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Comment (by hamish):

 Replying to [comment:7 mmetz]:
 > MFD is not affected, i.e. this fix would be mostly needed
 > by 64 because it doesn't have MFD. OTOH, these are drastically
 > different results and before submitting to 64 I would like to do
 > more testing to 1) make sure I have properly understood and
 > implemented Chuck Ehlschlaeger's description and 2) figure out
 > why the correction present in grass32 was removed for grass4,
 > there must have been a reason (maybe because the code did not
 > exactly match the description and caused problems in special
 > cases).

 maybe a silly question, but have you tried emailing Chuck to ask? He is
 still contactable AFAIK & has been quite responsive to questions in the
 past. I'm not even sure if he knows about all the wonderful updates you've
 done and what r.watershed is now capable of.


 Hamish

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Ticket URL: <https://trac.osgeo.org/grass/ticket/807#comment:8>
GRASS GIS <http://grass.osgeo.org>