[GRASS-dev] [GRASS GIS] #3863: epsg file missing in GRASS 7.6.1 stable

GRASS GIS trac at osgeo.org
Wed Jul 3 00:34:28 PDT 2019


#3863: epsg file missing in GRASS 7.6.1 stable
---------------------------------+---------------------------------
  Reporter:  Luigi Ponti         |      Owner:  grass-dev@…
      Type:  defect              |     Status:  new
  Priority:  normal              |  Milestone:  7.6.2
 Component:  Projections/Datums  |    Version:  svn-releasebranch76
Resolution:                      |   Keywords:  epsg
       CPU:  OSX/Intel           |   Platform:  MacOSX
---------------------------------+---------------------------------

Comment (by mmetz):

 Replying to [comment:2 Luigi Ponti]:
 >
 > I wonder why the bundle was built with an incompatible proj-6 libary --
 it that going to break a lot of GRASS functionality other than the missing
 epsg file?

 Yes, reprojections are affected because the bahviour of proj changed:
 previously, it expected coordinates in the order east, north. Now it
 depends on the CRS definition, e.g. commonly used EPSG:4326 defines an
 order of north, east. Previously it expected coordinates for ll to be in
 radians, now it also depends on the CRS definition (commonly degrees, not
 radians for ll). That means even if you patch in the old epsg file,
 coordinate transformations might be wrong. Not to mention the new temporal
 dimension and the new availability of more accurate transformation
 pipelines.
 >
 > Should I close the bug as it is apparently not a bug?

 Maybe we should add a configure check for proj-6+ to GRASS 7.6.

-- 
Ticket URL: <https://trac.osgeo.org/grass/ticket/3863#comment:3>
GRASS GIS <https://grass.osgeo.org>



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