[GRASS-dev] [GRASS GIS] #1828: v.kernel's "Standard deviation in map units" field is not clear

GRASS GIS trac at osgeo.org
Fri Dec 7 10:12:01 PST 2012


#1828: v.kernel's "Standard deviation in map units" field is not clear
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 Reporter:  arencambre  |       Owner:  grass-dev@…              
     Type:  defect      |      Status:  new                      
 Priority:  normal      |   Milestone:  6.4.3                    
Component:  Vector      |     Version:  6.4.2                    
 Keywords:              |    Platform:  MSWindows 7              
      Cpu:  x86-64      |  
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 Discussing with Markus Metz, it's apparent that v.kernel's '''Standard
 deviation in map units''' field is unclear and has different meanings
 depending on the kernel function used. E.g., the actual kernel radius is
 currently a function of the SD and the selected kernel function.

 USers should be just asked for the radius in map units. The SD would be
 adjusted as necessary depending on the function.

 It may be OK to retain an SD field for advanced cases, but it should not
 be on the '''Required''' tab of the v.kernel UI.

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/1828>
GRASS GIS <http://grass.osgeo.org>



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