[GRASS-dev] Re: [GRASS GIS] #610: r.sun: incidout uses 0 instead of NULL

[GRASS GIS]

#610: r.sun: incidout uses 0 instead of NULL
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  Reporter:  hamish  |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect  |      Status:  new                      
  Priority:  normal  |   Milestone:  6.5.0                    
 Component:  Raster  |     Version:  6.4.0 RCs                
Resolution:          |    Keywords:  r.sun                    
  Platform:  All     |         Cpu:  All                      
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Comment (by hamish):

 Replying to [comment:8 hamish]:
 > now, any ideas about why the western most column is all nulls?
 > consequence of not supplying aspect/slope maps??

 weird, if I zoom in to be entirely within elevation.dem, then run with
 slope=slope and aspect=aspect, now the southern most row and eastern most
 column are not NULL. I guess that's just because those two edges have only
 NULL between them and the sun rising in the south-east that day, so no way
 of knowing that they're on a downslope or not.


 Hamish

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Ticket URL: <http://trac.osgeo.org/grass/ticket/610#comment:9>
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