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

[Quantum GIS]

#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):

 It appears to be something strange about the supplied WKT? If you add a
 +datum in the Custom CRS and export the file by "Save as shapefile" and
 supply your changed Custom CRS, a new WKT gets written in the .prj file.

 The conversion from WKT to +proj is done by OGR(?) OSRImportFromWkt().
 Also the conversion the other way is done with that library.

 And the new .prj file is picked up with +datum, and matched against EPSG
 27200. Is that correct?

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/1875#comment:38>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats