GRASS 3.x had a program called mapmask (I think that's the right name).
It allowed users to draw polygons on a map layer and then make them the
current mask.
Is there an analogous program in GRASS 4.0? There is a reference to
r.mapmask in the g.manual "list", but no manual page is available. If the
program exists, I assume that it didn't compile along with the other
GRASS code. Where does the code live?
Thanks....
Mike Camann
camann@athena.cs.uga.edu