[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
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        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            
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Comment (by lutra):

 Replying to [comment:28 homann]:

 > Remove the +damtum=WGS84 from proj B, and test.

 [[BR]]

 Hi Homann,

 If I remove "+datum" from B) the result is the same described earlier in
 this ticket (see attached files, one defined with +towgs, the other
 without but also without +datum): the two layer align correctly with OTFR
 "on" and with certain crs defined for the project. The difference between
 aligning or not seems to depend if in the project crs are defined the
 +towgs/+datum/+ellps parameter(s). For example they align if the project
 has epsg 3003 but not if the project has epsg 4326.

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/1875#comment:29>
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