[GRASS-user] Get non-NULL cells over multiple rasters

Johannes Radinger JRadinger at gmx.at
Thu Mar 1 06:38:50 EST 2012


Hi,

I have a bunch of raster maps (~50 are named crast_* and 50 are named rast_*). Is there a simple way (eg. using regular expressions) to process them with the mapcalculator to get one resulting map which shows only those cells (value 1) which are non-NULL cell in ALL maps? Like I'd like the cells which all rasters have commonly populated.
Maybe there is a simple way to do this in the mapcalculator (or any other modul) resp. in a python script?? Suggestions are mostly welcome.
Thanks,

Best regards,

/johannes
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