[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 neteler):

 Ok, I have tested with QGIS trunk from 15 aug 2009. Attached a screenshot,
 the result of a vector projection from Lat-Long (!OpenStreetMap) and
 Gauss-Boaga (provincial data) to a provincial 1m DEM which was made in
 UTM32 look good.

 The prj file of the "viapri" Gauss-Boaga file looks like this:
 {{{
 # long lines broken for readability here
 cat viapri.prj
 PROJCS["Transverse
 Mercator",GEOGCS["international",DATUM["Monte_Mario",SPHEROID["International_1924",6378388,297],
 TOWGS84[-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68]],PRIMEM["Greenwich",0],
 UNIT["degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],
 PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",9],
 PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",1500000],
 PARAMETER["false_northing",0],UNIT["Meter",1]]
 }}}

 I did no longer see the error message in the terminal about towgs84
 confusion of QGIS. Thanks for having this long term issue fixed.

-- 
Ticket URL: <http://trac.osgeo.org/qgis/ticket/1875#comment:31>
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