[GRASS-user] r.mapcalc problem ?

Nikos Alexandris nikos.alexandris at felis.uni-freiburg.de
Sat Jul 4 15:45:23 EDT 2009

Juan CT:
> > I think that your second command is correct. That is

> > r.mapcalc 'test = if(mydem < 0.0000,mydem,null())'
> > 
> > Probably your problem is that your are drawing the new map on top of the 
> > older one. Just try to erase the monitor before drawing

Glynn C:
> Or use "d.rast -n ...", which will draw null cells.

Ehm... where is this flag (-n) ? In grass70?
Thanks, Nikos

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