[QGIS-trac] Re: [Quantum GIS] #1875: A few problems with crs definitions with TOWGS parameters

Quantum GIS qgis at qgis.org
Wed Aug 19 11:31:35 EDT 2009


#1875: A few problems with crs definitions with TOWGS parameters
--------------------------------------------------------------+-------------
        Reporter:  lutra                                      |         Owner:  homann       
            Type:  bug                                        |        Status:  closed       
        Priority:  critical: causes crash or data corruption  |     Milestone:  Version 1.2.0
       Component:  Projection Support                         |       Version:  HEAD         
      Resolution:  fixed                                      |      Keywords:               
Platform_version:                                             |      Platform:  All          
        Must_fix:  No                                         |   Status_info:  0            
--------------------------------------------------------------+-------------
Comment (by homann):

 Again, the WKT you have supplied is not translated by OGR into the proj-
 string you think it should be. OGR library is used for that. The proj-
 string is then used by PROJ4 to do the actual projection. OGR library is
 used for that translataion also.

 If you use the GDAL/OGR program "testepsg <your-WKT-definition>" you will
 see that OGR does not pick up the datum. The error (if any) is
 reproducable outside QGIS. If you are sure the WKT is correct, please file
 a bug with OGR, where the problem (if any) can be solved.

 Posting more comments here will not fix the problem.

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/1875#comment:43>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats


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