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

Etienne Tourigny etourigny.dev at gmail.com
Mon Aug 20 07:36:21 PDT 2012


Hi,

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

Can you test in linux?

Can you make the file available?

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
>



More information about the Qgis-user mailing list