[GRASS-dev] Re: [GRASS GIS] #1640: r.in.gdal scale/offset not applied

GRASS GIS trac at osgeo.org
Sun Apr 15 02:39:30 EDT 2012

#1640: r.in.gdal scale/offset not applied
 Reporter:  alf                       |       Owner:  grass-dev@…              
     Type:  enhancement               |      Status:  new                      
 Priority:  normal                    |   Milestone:  7.0.0                    
Component:  Raster                    |     Version:  6.4.2                    
 Keywords:  r.in.gdal, scale, offset  |    Platform:  Linux                    
      Cpu:  Unspecified               |  
Changes (by hamish):

  * type:  defect => enhancement
  * milestone:  6.4.3 => 7.0.0



 afaik they are non-standard extensions and just treated as plain-text
 metadata by GDAL. heuristics might be possible (albeit fragile), but
 perhaps not advisable to apply them by default. (e.g. makes filtering out
 transformed non-NULL no-data values a bit more difficult)

 for examples of semi-automatic transforms see:

 and exponential flavour: (where Slope and Intercept are present but not


Ticket URL: <https://trac.osgeo.org/grass/ticket/1640#comment:2>
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