[Qgis-user] Nodata and raster calculator

Nicolas Cadieux nicolas.cadieux at archeotec.ca
Tue Jan 27 12:45:10 PST 2015


Salut JF,
Not sure... perhaps 0 is her no data value in her original DEM... just a 
guess.

This could help...

http://gis.stackexchange.com/questions/33764/how-to-change-null-values-raster-values-to-0-in-qgis
http://gis.stackexchange.com/questions/81640/how-to-set-all-pixels-with-value-0-to-nodata-in-dem-raster

Le 2015-01-27 15:10, jfprieur [via OSGeo.org] a écrit :
> Merci Nicolas ;)
>
> I understand your explanation but why does Kavinda's example set the 
> result to the rasters nodata value eg. he does not have to set the 
> nodata value to 0 manually. Seems to be using float as well. I must 
> not be seeing something obvious. Thanks for your patience.
>
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