[QGIS-trac] Re: [Quantum GIS] #2427: Can't build pyramids for IMG files

[Quantum GIS]

#2427: Can't build pyramids for IMG files
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        Reporter:  alexbruy                          |         Owner:  nobody       
            Type:  bug                               |        Status:  new          
        Priority:  major: does not work as expected  |     Milestone:  Version 1.5.0
       Component:  Rasters                           |       Version:  HEAD         
      Resolution:                                    |      Keywords:  pyramids, IMG
Platform_version:                                    |      Platform:  All          
        Must_fix:  No                                |   Status_info:  0            
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Comment (by lutra):

 Hi,

 if you don't choose the pyramids resolution (up-right), then clicking the
 "build pyramid" button does nothing. Nevertheless if you choose at least
 one resolution then the button works, ans in the case of .img files a
 warning pops up

 "Building pyramid overviews is not supported on this type of raster."

 This is at least what happens with the .img raster you can find in the
 qgis sample dataset. Gdal tools also cannot create overviews for this
 particular file.

 Did not tested gdal from the command line.

 Closing?

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/2427#comment:1>
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