Selon David Strip <g...@stripfamily.net>: > The new 64 bit release of qgis (2.0.1 Dufur) fails when trying to load > deflate compressed geotiffs. Further testing reveals that the bundled > gdal utilities suffer the same problem. The version lists as 1.10.0, > released 2013/04/24. No idea how it was built - this is a download of > the pre-compiled Win7 qgis release. Before digging any deeper, I thought > I'd ask if the 64bit version of gdal is supposed to support deflate. The > 32 bit version does (that's how I compressed the files in the first place).
David, http://trac.osgeo.org/gdal/browser/trunk/autotest/gcore/tiff_write.py has a test "tiff_write_6" that generates a deflate compressed geotiff and reads it, and it passes on the gisinternals binaries, including 64 bit builds ( e.g. http://gisinternals.com/sdk/BuildLog.aspx?id=vc8x64-dev ), and I'm pretty sure that there are quite a lof of places elsewhere in the autotest suite where deflate compression is used, so it might indeed be an issue with the particular build (OSGeo4W-64 ?) used by QGIS. Or perhaps you are triggering a particular issue not triggered by the autotest suite... You could try downloading http://download.osgeo.org/gdal/1.10.0/gdalautotest-1.10.0.zip and check it gcore/tiff_write.py and gcore/tiff_read.py pass. Even _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
