[Qgis-developer] Loading of GRASS rasters

Radim Blazek radim.blazek at gmail.com
Sat Dec 1 09:19:17 PST 2012


On Sat, Dec 1, 2012 at 5:26 PM, Paolo Cavallini <cavallini at faunalia.it> wrote:
> Il 01/12/2012 13:14, Radim Blazek ha scritto:
>> On Sat, Dec 1, 2012 at 9:23 AM, Paolo Cavallini <cavallini at faunalia.it> wrote:
>>> Hi all.
>>> Loading of GRASS rasters is still very slow on master. Any plans to fix it?
>>
>> Can you specify better how slow it is, if it is constant or what it
>> depends on? For me it takes to render one layer full screen 1-2s and
>> it seems to be constant.
>
> It seems to be related to colours: grey scale rasters are much faster, especially in
> zooming in.

GRASS raster layer with defined colors is loaded as single band
pseudocolor, right? How many colors do you have? What happens if you
reduce the number of colors?

Radim

> Thanks.
> --
> Paolo Cavallini - Faunalia
> www.faunalia.eu
> Full contact details at www.faunalia.eu/pc
> Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario


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