[GRASS-dev] Re: [GRASS GIS] #35: Verify and uncomment Swiss datum parameters

GRASS GIS trac at osgeo.org
Sun Jul 12 07:14:21 EDT 2009


#35: Verify and uncomment Swiss datum parameters
---------------------------------+------------------------------------------
  Reporter:  neteler             |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect              |      Status:  closed                   
  Priority:  major               |   Milestone:  6.4.0                    
 Component:  Projections/Datums  |     Version:  unspecified              
Resolution:  fixed               |    Keywords:  CH1903, Swiss            
  Platform:  Unspecified         |         Cpu:  Unspecified              
---------------------------------+------------------------------------------
Changes (by hamish):

  * keywords:  => CH1903, Swiss
  * component:  default => Projections/Datums

Comment:

 Replying to [comment:10 pkelly]:
 > It's just a pity we can't use the gridshift file due to the
 > current structure of PROJ.4 - gridshift files can only be used
 > if they transform to WGS84 directly.

 complete ignorance at my end:  is there any practical difference between
 ETRS89 and WGS84? e.g. is ETR89 a continental plate locked datum, or is
 the difference just the flattening term of the ellipsoid, or ...?


 Hamish

-- 
Ticket URL: <https://trac.osgeo.org/grass/ticket/35#comment:11>
GRASS GIS <http://grass.osgeo.org>


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