[Qgis-user] New raster provider: opening larger tiff files takes forever

[Andreas Neumann]

 Hi,

 Like others, I am experiencing severe problems with the new raster 
 provider. The Geotiff already has pyramids. With the previous raster 
 provider it opened in less than a second, in the new raster provider it 
 takes forever (several minutes). There must be something wrong.

 In the console I see:

 ERROR 6: Attempt to call SetGeoTransform() on a read-only GeoTIFF file.
 0...10...20...30...40...50...60...70...80...90...100 - done.

 and the progress message appears several times.

 To me it looks like the new raster provides does not recognize the 
 existing gdal pyramids and tries to create new pyramids while opening 
 the file?

 Am I doing somehting wrong?

 -

 I tested on Ubuntu 10.04 64bit, current trunk.

 Thanks,
 Andreas

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 Andreas Neumann
 Böschacherstrasse 10A
 8624 Grüt (Gossau ZH)
 Switzerland