[Qgis-developer] Slow raster loading

[Paolo Cavallini]

Hi all.
Currently, loading coloured rasters with stretching to minmax on is extremely 
slow
(almost unusable):
http://hub.qgis.org/issues/4421
E.g. I could load a large RasterLite in <1 sec instead of minutes (!).
The trick, from the user point of view, is to disable stretching by default, and
enable it only for rasters where the option makes sense (e.g. a monoband, 
greyscale).
Obviously we could do it better, disabling the stretch for the rasters where it 
does
not make sense.
In addition, Giovanni noticed several other small bugs.
Anybody interested in looking into this? The situation is rather intricate, but 
most
of the fixes should be trivial, and would improve usability a lot.
We (Faunalia) are ready to help testing and clarifying.
Thanks a lot.
-- 
Paolo Cavallini - Faunalia
www.faunalia.eu
Full contact details at www.faunalia.eu/pc
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