[QGIS-trac] [Quantum GIS] #1146: Custom Projection Definition

[Quantum GIS]

#1146: Custom Projection Definition
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   Reporter:  alf                                          |              Owner:  nobody
       Type:  bug                                          |             Status:  new   
   Priority:  major: does not work as expected             |          Milestone:        
  Component:  Projection Support                           |            Version:  0.10.0
   Keywords:  Projection, Custom, ellps, proj4, ellipsoid  |   Platform_version:        
   Platform:  All                                          |           Must_fix:  No    
Status_info:  0                                            |  
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 Hello,

 while adding a projection definition in the Custom Projection Definition
 dialog, if I pass 'a' and 'b' parameters instead the 'ellps' I got the
 error message: "This proj4 ellps definition is not valid. Please add a
 valid ellps clause before pressing save".
 Even adding the ellipsoid name (e.g. foo) and relative parameters to
 qgis.db and passing +ellps=foo does not work, as qgis rises up: "This
 proj4 definition is not valid. Please correct before saving".

 To fix this beaviour temporarily I commented out lines 775-780 of
 src/app/qgscustomprojectiondialog.cpp ( conditional statement on
 myEllipsoidAcronym.isNull() ); in this way, the projection definition is
 accepted also with 'a' and 'b' parameters and the reprojection on the fly
 works as expected (I've checked coordinates with proj using the same proj4
 definition on the command line).

 Best regards,

 Alessandro Frigeri

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/1146>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats