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: $Date$