[Qgis-user] Raster calculator merge 2 grids

Matt Boyd mattslists at gmail.com
Thu Sep 18 18:33:23 PDT 2014


Hi List,
trying to get my head around the raster calculator.
I've 2 grids. Where grid 1 is null I want to replace it with grid 2. The
null value reported in the tiff using the info tool is nan. It's just a
single band.

I've tried various iteration of this...

("P_Clip_fill at 1">0) * "P_Clip_fill at 1"+("P_Clip_fill at 1"<=0)*"Z_Clip_fill at 1"

Any tips?
thanks
Matt
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