## DESCRIPTION

File map is used as reference file. Cells in the mask are marked as "mask out" if the corresponding cell in map contains a value in the range specified with maskvalues.

Before a new 3d-mask can be created the exisitng mask has to be removed with g.remove.

### Parameters:

maskvalues
  Values specified to be masked out
grid3d
  Name of G3D-map that is used as the mask reference

## SEE ALSO

g.remove

## AUTHORS

Roman Waupotitsch, Michael Shapiro, Helena Mitasova, Bill Brown, Lubos Mitas, Jaro Hofierka

Last changed: $Date: 2006/04/20 21:31:24 $