[GRASS-dev] [GRASS GIS] #2032: r.mapcalc does not always respect MASK

[GRASS GIS]

#2032: r.mapcalc does not always respect MASK
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  Reporter:  pvanbosgeo  |       Owner:  grass-dev@…              
      Type:  defect      |      Status:  closed                   
  Priority:  normal      |   Milestone:  7.0.0                    
 Component:  Raster      |     Version:  unspecified              
Resolution:  invalid     |    Keywords:  r.mapcalc                
  Platform:  Linux       |         Cpu:  Unspecified              
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Changes (by mmetz):

  * status:  new => closed
  * resolution:  => invalid


Comment:

 Replying to [ticket:2032 pvanbosgeo]:
 > If I run:
 >
 {{{
 r.mask raster=mymask
 r.mapcalc "test1 = 1"
 r.mapcalc "test2 = test1"
 r.mask -r
 }}}
 >
 > The layer ''test1'' has value 1 for all raster cells within the current
 region. In layer ''test2'' only cells within the masked area have the
 value 1, cells outside the mask have nodata, as I would expect.

 From the raster intro [0]:
 "Raster input maps are automatically masked if a raster map named MASK
 exists. The MASK is only applied when ''reading'' maps from the disk."

 A MASK is not applied when writing out files. If you set the output cell
 value to constant 1, all output cells will have the value 1, even if a
 MASK was set while writing the output raster.

 [0] http://grass.osgeo.org/grass70/manuals/rasterintro.html

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2032#comment:1>
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