[Qgis-user] singelband pseudocolor takes a very long time to classify a 21698x24647 raster

[G. Allegri]

Hi Etienne,

which ramp(s) are you using, and how many classification steps?
>

any ramp (qgis defaults and cpt-city behave the same)


>
> Can you test in linux?
>

I will do as soon as I restore my Ubuntu VM...


>
> Can you make the file available?
>

Mmm, I suppose no, both for license issues and being a huge file (various
GBs).
I will try with a subset.

giovanni





>
> Etienne
>
> On Mon, Aug 20, 2012 at 7:50 AM, G. Allegri <giohappy at gmail.com> wrote:
> > I'm testing the new raster styling with qgis-dev (from osgeo4w) on a
> Windows
> > 7 64bit machine.
> > My single band raster (21698x24647) takes a very long time to do the
> color
> > ramp classification with singleband pseudocolor. So much time that I
> ended
> > it before completion (minutes after starting it).
> > In QGis 1.8 the (not customizable) Pseudo Color option rendered
> > istantaneously.
> >
> > The new features in raster simbology are really awesome!
> > Thanks a lot,
> > giovanni
> >
> >
> > _______________________________________________
> > Qgis-user mailing list
> > Qgis-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> >
>
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