Hi Tim, thanks for the answer.
Yes, I think this part needs review and revision. If QGIS provides some raster stats, which GDAL doesn't these stats should be stored and loaded externally, so that QGIS will not try to recalculate them every time they are needed. Maxim Вы писали 17 июля 2010 г., 3:33:57: TS> Hi TS> 2010/7/14 Maxim Dubinin <[email protected]>: >> Hi all, >> >> there are two sets of statistics now for rasters, visible when you >> open raster properties. One is taken aux-file if it exists using GDAL >> and another is some kind of internal QGIS one. >> >> Question why not use just one, GDAL's? >> TS> Back in the day when I wrote that, GDAL only estimated the stats TS> whereas the QGIS implementation computes them completely (I think this TS> situation is still the same today). Perhaps this functionality is not TS> something important and could be stripped out (or made into a plugin) TS> - it would certainly speed things up with rasters in some contexts. TS> Regards TS> Tim >> Implication is that QGIS stats are saved only session wide, if you >> remove raster from the project it needs to be recalculated. >> >> Maxim >> >> >> _______________________________________________ >> Qgis-developer mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-developer >> _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
