[GRASS-dev] [GRASS GIS] #1452: wx location wizard doesn't ask for datum transform options because proj4 4.7.1's epsg file is broken

GRASS GIS trac at osgeo.org
Thu Oct 18 02:05:50 PDT 2012


#1452: wx location wizard doesn't ask for datum transform options because proj4
4.7.1's epsg file is broken
---------------------------------+------------------------------------------
  Reporter:  hamish              |       Owner:  grass-dev@…              
      Type:  defect              |      Status:  reopened                 
  Priority:  critical            |   Milestone:  6.4.3                    
 Component:  Projections/Datums  |     Version:  svn-releasebranch64      
Resolution:                      |    Keywords:  location wizard, g.proj  
  Platform:  All                 |         Cpu:  All                      
---------------------------------+------------------------------------------

Comment(by mlennert):

 Replying to [comment:36 pkelly]:
 > Hmmm, I have just read through the bug thread and am confused by all the
 discussion about PROJ. g.proj does not use PROJ at all (nor any files from
 the PROJ distribution) and strings passed with the proj4= option are
 interpreted by GDAL/OGR functions, so I don't see how changes to PROJ can
 fix the original problem in this report.

 Most of us do use the epsg file that come from proj. And that file, in the
 4.7.1 version of proj did not contain datum names, but precise
 transformation parameters for one of the available transformations. Thus,
 the location wizard suddenly did not ask for a choice between datum
 transformations.

 This issue was actually fixed by the changes in proj, and, as you say,
 have nothing to do with the patches. But AFAIU the issue can still be
 considered as solved.

 AFAIU (again), your patches fixed another bug, and both were mixed up in
 this ticket. But both seem to be solved now.

 Moritz

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/1452#comment:37>
GRASS GIS <http://grass.osgeo.org>



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