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I have a raster file but am only interested in the cells outside a certain polygon. This polygon is very iregular and scattered across the raster. Is there any easy way to extract only the cells outside of this polygon? A sort of "reverse clip" command? I have zero knowledge of python. I am using QGIS. I need a code-free solution.

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    Use reversed logic and update the cells inside your polygon to nodata value with raster calculator. – user30184 Aug 11 '14 at 8:56

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