[Qgis-user] Wrong result with Saga Raster calculator

Wed May 31 02:05:02 PDT 2017

Il 31/05/2017 10:27, frippe12573 ha scritto:
> Hi all,
> 
> I'm in trouble with Saga Raster Calculator in QGIS 2.18.9 3a16a4e installed
> via deb package on ubuntu 17.04.
> I set this operation on three raster layers:
> 
> ifelse(a<500,0,((b-c)/a)*1000)
> 
> I got the resulting map, but checking the computation the pixels have no
> correct values.
> 
> I tested the same operation in a proprietary software, and with
> astonishment, I see that the computation
> works fine. I cannot believe that! So I think I'm wrong somewhere in the
> raster calculator module.

could this be because of interpolation of rasters of different pixel
size and origin?
have you tried with another one of the raster calc available in QGIS?
all the best.
-- 
Paolo Cavallini - www.faunalia.eu
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