[GRASS-dev] [GRASS GIS] #1874: latitudinal bias in sample points created with r.random

[GRASS GIS]

#1874: latitudinal bias in sample points created with r.random
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 Reporter:  pvanbosgeo  |       Owner:  grass-dev@…              
     Type:  defect      |      Status:  new                      
 Priority:  major       |   Milestone:  7.0.0                    
Component:  Raster      |     Version:  svn-trunk                
 Keywords:  r.random    |    Platform:  Linux                    
      Cpu:  x86-64      |  
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Comment(by hamish):

 Replying to [ticket:1874 pvanbosgeo]:
 > Note that points created with v.random do no show a bias.
 > However, this is not really an alternative for creating
 > random points within a irregular area.

 the v.random.cover addon script for grass 6 exists to do that.
   http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#v.random.cover

 '' v.random.cover is a shell script for creating random points constrained
 within an irregularly shaped vector area. (v.random places points only in
 current region rectangle). Optionally the user can upload raster values at
 the points. See also 'r.random cover= vector_output=' ''


 It's internal method is not especially efficient, but it gets the job done
 all the same.


 Hamish

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Ticket URL: <https://trac.osgeo.org/grass/ticket/1874#comment:5>
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