In an E-mail message, Bill Brown wrote:
> 
> Something like this should work:
> 
> dd if=usgsdem-w ibs=10240 | m.dmaUSGSread top=1 bottom=1201 \
> left=1 right=1201 output=usgsdem.dat logfile=log
> 
> m.rot90 input=usgsdem.dat output=usgsdem.dem rows=1201 cols=1201 bpc=2
> 
> r.support
> (create header & color files - get header info from log)
> 

You will need to import the rotated file into Grass before you run support,
via the r.in.ll command as shown below:

r.in.ll input=usgsdem.dem output=YourDEM dimension=1201,1201 bpc=2 res=3,3 \
corner=sw,00:00N,00:00W spheroid=wgs72

Subsitute the actual latlon coords for where I showed zeros.  Any 1=degree
paper map or USGS map atlas will have the corner coords.  

Lastly you can run support.  The east and west halves patch up easily
with r.patch.

-- 
-------------------------

Paul Loechl					p-loechl@cecer.army.mil
USA CERL					(217)352-6511x7668

