[GRASS-dev] [GRASS GIS] #631: Discrepancies between tcl/tk and wxpython PROJ_INFO files

[GRASS GIS]

#631: Discrepancies between tcl/tk and wxpython PROJ_INFO files
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 Reporter:  voncasec                      |       Owner:  grass-dev at lists.osgeo.org
     Type:  defect                        |      Status:  new                      
 Priority:  normal                        |   Milestone:  6.4.0                    
Component:  default                       |     Version:  unspecified              
 Keywords:  Projections, wxpython, tcltk  |    Platform:  Unspecified              
      Cpu:  Unspecified                   |  
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 I have been noticing some discrepancies in the PROJ_INFO files that are
 created using Grass6.4 RC4 between the projection values option in the
 tcltk interface and the location wizard option using the wxpython
 interface.

 For example, inputting the projection info:

 Coordinate System=UTM
 Datum=Nad27 - T04 (Transformation Parameters for Alaska)
 Ellipse: Clark66
 Zone=8

 I get the following PROJ_INFO files created.

 tcltk interface results:

 name: UTM
 datum: nad27
 nadgrids: alaska
 proj: utm
 ellps: clark66
 a: 6378206.4000000004
 es: 0.0067686580
 f: 294.9786982000
 zone: 8

 wxpython results:

 name: Universe Transverse Mercator
 proj: utm
 ellps: clark66
 zone: 8
 no_defs: defined

 The summary at the end of the wxpython location wizard method says the
 proj.4 definition is:
 +proj=utm, +zone=8, +a= 6378206.4000000004, +rf=294.9786982000, +dx=-22,
 +dy=157.0, +dz=176.0, +no_defs, +nadgrids=alaska
 but if I run g.proj -j -f, I get the following output (which matches the
 PROJ_INFO file):
 +proj=utm +no_defs +zone=8 +a=6378206.4 +rf=294.9786982 +to_meter=1

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/631>
GRASS GIS <http://grass.osgeo.org>