From: Marco O. Lanzagorta (lnzgrt++at++volt.nrl.navy.mil)
Date: 04/30/2001 07:36:06
Hello,
Right now, as part of one of my projects, I am incorporating level 1 DTED
data from the NIMA CD ROMS. After several experiments, I concluded that
the best way for me to do this task is the following: I use the Nima Muse
software to read the DTED data from a pre-determined region, then I export
it as an ARC file, which is very much like an elevation data file. Then I
use a modified version of SGI's ASDGen to create a paging ASD terrain. The
original version uses a fractal terrain generator, but you can modify that
part to make it work with your own data. A colleague of mine also
suggested to use a demToPGM and a pgmToASD programs for such effect,
but I have not tried them yet.
Nima Muse is freely available from the Nima web site:
http://164.214.2.59/geospatial/SW_TOOLS/NIMAMUSE/
and SGI's ASDGEn from Yair's web page:
http://reality.sgi.com/yair/ASDGen/
Regards,
Marco
===========================================================================
Dr. Marco Lanzagorta email: lnzgrt++at++volt.nrl.navy.mil
Code 5594 phone: (202) 767-8427
Visualization Laboratory fax : (202) 404-7402
Naval Research Laboratory
4555 Overlook Ave, S.W.
Washington, DC 20375 http://ohm.nrl.navy.mil/staff/lnzgrt
===========================================================================
On Sun, 29 Apr 2001, Martin Peter Hanke wrote:
> Hi Performers,
>
> I'm trying to generate a large terrain database. By now I figured out, that
> it would be good to use DTED-data. In the manual I read something about PTU
> and the ascii file for that, but I can't figure out how to do that. Has
> somebody a suggestion on how a PTU-File looks like and where I can get
> elevationdata of terrain?
> Or maybe a good idea what tool to use for terrain generation(maybe from
> DTED or similiar), I'm not really bound to use real terraindata, it would
> be nice, though.
>
>
> Thanks,
> Martin Peter Hanke
>
> ==================================================
> I. Thessalonians 4:16
> Thanks, Dad, for just letting me be a nerd.
>
> We don't stop playing because we grow older,
> We grow older because we stop playing.
> ==================================================
>
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