grass: gtopo30 extraction

[Markus Neteler]

> I'm wondering whether any readers have read a downloadable DEM file,
> e.g. e060n40.tar.gz, into grass 5 on a linux machine.  The byte order
> needs to be reversed, or at least the docs indicate this.  If this is
> done will m.dem.extract then work?  Does the header need to be 
> reincorporated somehow after untarring the distributed tile file?
> 
> Finally, has someone already written a program to do this for the 
> gtopo30 data?
Yes. Please use the r.in.bin module.
Details are described at:
http://www.geog.uni-hannover.de/grass/admin/gtopo30_import.html

Cheers

 Markus