non-interactive r.mask (v. 4.2.1)

[Malcolm Williamson]

If you have several work regions defined within a single raster layer,
it is easy to use a "do" or "for" loop with r.reclass:

(this is in Bourne shell)
----
count=1
while [ $count -le 30 ] 
do
r.reclass in=inputmapname out=MASK << EOF
$count = 1
EOF

count=`expr $count + 1`
done
----

Regards,
	-Malcolm Williamson

"William L. Baker" wrote:
> 
> Yes, just use g.copy rast=maskname,MASK
> 
> Bill B.
> 
> > -----Original Message-----
> > From: Stephan Eickschen [SMTP:eicksch at earth.uni-muenster.de]
> > Sent: Thursday, July 15, 1999 2:43 PM
> > To:   grass-list at cecer.army.mil
> > Cc:   Stephan Eickschen
> > Subject:      non-interactive r.mask (v. 4.2.1)
> >
> > Hi GRASSers,
> >
> > I have to do some stupid work - so I would rather enjoy to write a skript,
> > fire it and have a decent cup of tea :) But, unfortunatly, I don´t know
> > the
> > right, best, or "state-of-the-art" way.
> > My problem:
> > I have many raster data sets which have to be processed in the same way.
> > That would not be too complicated if I do not have to change between
> > different MASKs. A possibility would be to write the skript without
> > automating the MASK setting. Then I would have to
> > - set MASK no. 1
> > - fire the skript
> > - set MASK no. 2
> > - fire the skript
> > and so on.
> > The problem is that r.mask in _always_ interactive. Just to make it short:
> >
> > Is there a way to set the MASK non-interactivly?
> >
> > I tried to look at the different MASK file in the $LOCATION directory, and
> > it looked somehow promising - but it looked aswell to be a lousy hack...
> >
> > Any suggestions...
> >
> > With kind regards,
> >
> >       Stephan
> >
> >
> > ------------------------------------------------------------------------
> >
> > Stephan Eickschen                     Tel. : +49 (0)251 83-34704
> > Westfaelische Wilhelms-Universitaet   Fax. : +49 (0)251 83-36100
> > Institute for Geophysics
> > Research Unit of Physical Glaciology  email: eicksch at uni-muenster.de
> > Corrensstrasse 24
> > 48149 Muenster
> > Germany
> >               http://earth.uni-muenster.de/~eicksch/
> > ------------------------------------------------------------------------
> >