Map Projections

[Michael Hanratty]

In message <3.0.32.19970613091116.006d6084 at zomba.ncl.ac.uk>  writes:
> Dear Grass Users,
> 
> Is there a simple way of using two map projections simultaneously in GRASS?
>  I have a GRASS location in UTM, but need to add new maps by digitising
> from base maps stored as latitude-longitude.  The v.digit command only
> seems able to cope with digitising using the same projection as the
> original location (in this case UTM). I could resort to using Arc/Info for
> digitising, then PROJECT/TRANSFORM into UTM before exporting to GRASS, but
> I'd prefer to carry out the whole operation in GRASS if possible.
> 
My suggestion is that you create a GRASS location for lat-long, store your newly
digitized maps there, then convert them to UTM using v.proj (an alpha module in 
GRASS).



Michael Hanratty                           Phone: (612) 627-4590
St. Anthony Falls Laboratory               Fax: (612) 627-4609
Dept. of Civil Engineering
University of Minnesota
Mississippi River @ 3rd Ave. SE
Minneapolis, MN 55414