[Qgis-user] new issue with raster calculator

[Nicolas Cadieux]

Hi,
Works for me.  Placing a "," rather that a "." decimal results in a 
"expression invalid" so that can't be it.  Are you really getting Nan?  
Use the "value plugin" to look at this or look at the histogram in layer 
properties.  Sometime it is just the image scaling that is off.  Send a 
sample file to test if it's still an issue.
Nicolas

Le 2015-05-18 09:04, Giacomo Fontanelli-2 [via OSGeo.org] a écrit :
> Dear community
>
> I have a raster layer with pixel values ranging from -8 to -11.
>
> when I do "layer1 at band1" * 0.1 I get a map with only 0 and Nan, instead
> when I do "layer1 at band1" / 10 I obtain the map with correct values.
>
> What do I do wrong?
>
> Thank you very much
>
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