[GRASS-dev] Re: [GRASS GIS] #1165: wingrass: cs2cs fails from the msys command line

[GRASS GIS]

#1165: wingrass: cs2cs fails from the msys command line
--------------------------------+-------------------------------------------
 Reporter:  hamish              |       Owner:  grass-dev@…              
     Type:  defect              |      Status:  new                      
 Priority:  normal              |   Milestone:  6.4.1                    
Component:  Projections/Datums  |     Version:  svn-develbranch6         
 Keywords:  cs2cs, wingrass     |    Platform:  MSWindows XP             
      Cpu:  x86-64              |  
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Comment(by hellik):

 Replying to [comment:2 hamish]:
 > Even after applying Helmut's GDAL_DATA path fix (r43520) to the
 destination files by hand, this still fails for me in 6.5svn on XP in the
 same way, both Msys (etc/Init.sh) and DOS-box (grass65svn.bat).
 >
 > I don't think it will help here, but should that "set GDAL_DATA=" also
 be added to mswindows/osgeo4w/ini.bat.tmpl as well?
 >
 >
 > thanks,
 > Hamish

 Hi Hamish,

 I think the GDAL_DATA variable is needed for the gdal stuff.

 I've studied a little bit the proj4- and cs2cs-manpages and faq:

 http://trac.osgeo.org/proj/wiki/man_cs2cs
 http://trac.osgeo.org/proj/wiki/man_proj

 from there I've found:

 {{{
 [...]
 The   environment   parameter
        PROJ_LIB establishes the default directory for a
        file reference without an absolute  path.   This
        is  also  used  for  supporting files like datum
        shift files.
 [...]
 }}}

 http://trac.osgeo.org/proj/wiki/FAQ#HowdoIbuildconfigurePROJ.4tosupportdatumshifting

 {{{
 [...]
 A default build and install on Unix will normally build knowledge of the
 directory where the grid shift files are installed into the PROJ.4 library
 (usually /usr/local/share/proj). On Windows the library is normally built
 thinking that C:\PROJ\NAD is the installed directory for the grid shift
 files. If the built in concept of the PROJ.4 data directory is incorrect,
 the PROJ_LIB environment can be defined with the correct directory.
 [...]
 }}}

 so if I'm correct there are following variables that have to be set in
 windows:

 GRASS_PROJSHARE => needed by grass
 GDAL_DATA => needed by the gdal-stuff
 PROJ_LIB => needed by the proj4/cs2cs-stuff

 best regards
 Helmut

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Ticket URL: <https://trac.osgeo.org/grass/ticket/1165#comment:3>
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