[GRASS-dev] Re: [GRASS GIS] #618: rfe: r.md5sum or equivalent

[GRASS GIS]

#618: rfe: r.md5sum or equivalent
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  Reporter:  hamish       |       Owner:  grass-dev at lists.osgeo.org  
      Type:  enhancement  |      Status:  new                        
  Priority:  normal       |   Milestone:  6.5.0                      
 Component:  Raster       |     Version:  svn-trunk                  
Resolution:               |    Keywords:  testsuite, r.univar, md5sum
  Platform:  All          |         Cpu:  All                        
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Comment (by glynn):

 Replying to [ticket:618 hamish]:

 > It would be helpful for comparing maps if there was some r.md5sum module
 or equivalent.

 What '''exactly''' should this module compute? MD5 and other hash
 algorithms operate on a sequence of bytes, so you need to decide exactly
 how to serialise the data.

 Should it operate upon the raw map data, or after reclassing, MASKing, and
 clipping and resampling according to the current region? How are nulls
 represented? Are numeric values serialised big-endian, little-endian, or
 in the host's native format? Or as decimal values in ASCII?

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Ticket URL: <https://trac.osgeo.org/grass/ticket/618#comment:3>
GRASS GIS <http://grass.osgeo.org>