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

[Giovanni Manghi]

Most of the problems are resolved with the revision available today.

cheers

-- Giovanni --

On Thu, 2011-03-10 at 10:48 +0100, Andreas Neumann wrote:
> 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
>