[GRASS-dev] Re: [GRASS GIS] #399: Added "backlink" functionality to r.walk, r.cost & r.drain

[GRASS GIS]

#399: Added "backlink" functionality to r.walk, r.cost & r.drain
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  Reporter:  cnielsen     |       Owner:  grass-dev at lists.osgeo.org
      Type:  enhancement  |      Status:  new                      
  Priority:  major        |   Milestone:  6.4.0                    
 Component:  Raster       |     Version:  unspecified              
Resolution:               |    Keywords:                           
  Platform:  All          |         Cpu:  All                      
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Comment (by dylan):

 One more set of comments:

 1. The patched r.walk appears to have the same problem as patched r.cost--
 Seg fault if the outdir option is not specified.

 2. Output direction from patched r.walk is not accepted by patched
 'r.drain -d'.

 I have been using data on this page
 (http://casoilresource.lawr.ucdavis.edu/drupal/node/544) as my test cases.
 The elevation surface and start/stop points are included at the bottom of
 the linked page.

 Cheers,

 Dylan

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Ticket URL: <http://trac.osgeo.org/grass/ticket/399#comment:7>
GRASS GIS <http://grass.osgeo.org>