[GRASS-dev] Re: [GRASS GIS] #100: v.surf.rst also crashes on Mac OS X

GRASS GIS trac at osgeo.org
Wed Mar 19 22:11:20 EDT 2008

#100: v.surf.rst also crashes on Mac OS X
  Reporter:  cmbarton  |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect    |      Status:  new                      
  Priority:  blocker   |   Milestone:  6.3.0                    
 Component:  default   |     Version:  unspecified              
Resolution:            |    Keywords:                           
Comment (by glynn):

 Replying to [comment:2 cmbarton]:

 > I'm also finding that r.resamp.interp says it makes maps, but it does
 not. With the neighbors algorithm, it makes a map that is exactly the
 raster points that are input. That is, there is no interpolation. For
 bilinear and bicubic, it makes NAN maps.

 You are misunderstanding what r.resamp.interp does. It does not "fill"
 null areas (like e.g. r.surf.idw or r.fillnulls). It resamples a map,
 calculating cell values by interpolating between the neighbouring cells,
 all of which must be non-null in order to get a non-null result.

Ticket URL: <http://trac.osgeo.org/grass/ticket/100#comment:3>
GRASS GIS <http://grass.osgeo.org>
GRASS Geographic Information System (GRASS GIS) - http://grass.osgeo.org/

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