[GRASS-dev] Re: [GRASS GIS] #163: g.transform no longer calculating error for 2nd order transformation

[GRASS GIS]

#163: g.transform no longer calculating error for 2nd order transformation
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  Reporter:  cmbarton  |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect    |      Status:  reopened                 
  Priority:  major     |   Milestone:  6.4.0                    
 Component:  default   |     Version:  svn-develbranch6         
Resolution:            |    Keywords:  g.transform georectify   
  Platform:  All       |         Cpu:  Unspecified              
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Comment (by cmbarton):

 Well, when I use exactly 6 GCP's the RMS values returned by g.transform
 are 0, and i.rectify fails. If I use 7 GCP's, I get real values from
 g.transform and i.rectify works.

 So at present, in terms of how this functions, the i.rectify man page is
 incorrect. I don't know if there is an error in the code or an error in
 the description.

 Michael

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Ticket URL: <http://trac.osgeo.org/grass/ticket/163#comment:4>
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