[GRASS-dev] [GRASS GIS] #2229: error in projection definition

GRASS GIS trac at osgeo.org
Tue Aug 30 22:38:35 PDT 2016


#2229: error in projection definition
---------------------------------+---------------------------------
  Reporter:  vincent             |      Owner:  grass-dev@…
      Type:  defect              |     Status:  new
  Priority:  normal              |  Milestone:  7.0.5
 Component:  Projections/Datums  |    Version:  svn-releasebranch70
Resolution:                      |   Keywords:  pseudomercator
       CPU:  Unspecified         |   Platform:  Unspecified
---------------------------------+---------------------------------

Comment (by vincent):

 Replying to [comment:19 mlennert]:
 > As discussed during the code sprint, the issue is because of the very
 weird nature of this "projection" system [...]
 I fully agree with these comments
 > The most reasonable conclusion, however, was to not use this system at
 all because of it's weird nature. Several official administrations forbid
 its use...
 Ok bu sooner or later, users may have to manage data in this "projection"
 system, and they might be puzzled (angry) to see it does not work despite
 a proper location definition via the epsg code.
 > In the discussions, one idea that came up was to provide alternative
 datum transformation parameters for this system, one on the sphere and one
 on the wgs84 ellipsoid.
 If there is no solution to automatically "patch" this issue, meanwhile we
 could edit a wiki page describing a solution (like passing a proj.4 chain)
 to the location's creation.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2229#comment:20>
GRASS GIS <https://grass.osgeo.org>



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