DTED - Format / IO in Ada?

DTED - Format / IO in Ada?

[Joachim Schröer]

Hello,

can anyone give me a pointer to a DTED (digital terrain elevation data), 
implementation (all levels 0 .. 5 if possible) in Ada? I'm looking for 
the data types representing the CD-contents and if possible a read - 
procedure.
A pure C-implementation is also ok, I could use C2Ada to save hacking in 
the data types.

Thanks
	J. Schr�er

Re: DTED - Format / IO in Ada?

[Jonathan DeSena]

On Fri, 17 May 2002 12:01:34 -0400, Joachim Schr�er wrote:

> Hello,
> 
> can anyone give me a pointer to a DTED (digital terrain elevation data),
> implementation (all levels 0 .. 5 if possible) in Ada? I'm looking for
> the data types representing the CD-contents and if possible a read -
> procedure.
> A pure C-implementation is also ok, I could use C2Ada to save hacking in
> the data types.
> 
> Thanks
> 	J. Schr�er
As for the format, do a google search for MIL-PRF-89020B. This is the
official DTED reference, I believe. There may be other references. 
I have not found any freely available code yet.

Jon

Re: DTED - Format / IO in Ada?

[Joachim Schr�er]

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Ok, thanks for the hint, I had MIL-PRF-89020A, B is a little bit more
precise.
I think I have to more or less hand-translate the C++ implementation we have
at work.

Best regards
    J. Schr�er

"Jonathan DeSena" <jonathan.desena@nospam.jhuapl.edu> schrieb im Newsbeitrag
news:ac3p80$bhj$1@houston.jhuapl.edu...
> On Fri, 17 May 2002 12:01:34 -0400, Joachim Schr�er wrote:
>
> > Hello,
> >
> > can anyone give me a pointer to a DTED (digital terrain elevation data),
> > implementation (all levels 0 .. 5 if possible) in Ada? I'm looking for
> > the data types representing the CD-contents and if possible a read -
> > procedure.
> > A pure C-implementation is also ok, I could use C2Ada to save hacking in
> > the data types.
> >
> > Thanks
> > J. Schr�er
> As for the format, do a google search for MIL-PRF-89020B. This is the
> official DTED reference, I believe. There may be other references.
> I have not found any freely available code yet.
>
> Jon

Re: DTED - Format / IO in Ada?

[Ted Dennison]

Joachim Schr�er <joachim.schroeer@dornier.eads.net> wrote in message news:<3CE5295E.8020702@dornier.eads.net>...
> can anyone give me a pointer to a DTED (digital terrain elevation data), 
> implementation (all levels 0 .. 5 if possible) in Ada? I'm looking for 
> the data types representing the CD-contents and if possible a read - 
> procedure.
> A pure C-implementation is also ok, I could use C2Ada to save hacking in 
> the data types.

Hmmm. I used one once on an old military project. It should be
obtainable by someone working on a US DoD contract, with a bit of
footwork. I'm guessing that won't help you though.

-- 
T.E.D. 
Home     -  mailto:dennison@telepath.com (Yahoo: Ted_Dennison)
Homepage -  http://www.telepath.com/dennison/Ted/TED.html

Re: DTED - Format / IO in Ada?

[Jeffrey Creem]

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my standard answer on all of thiese (if you are running on windows) is find
a COM/ActiveX binding
and use GNATCOM to build an autobinding.

This of course only works for Windows  and probably GNAT.

A quick look at http://www.vterrain.org/Packages/ (found via google)
shows a few packages with COM and DTED support.


"Joachim Schr�er" <joachim.schroeer@dornier.eads.net> wrote in message
news:3CE5295E.8020702@dornier.eads.net...
> Hello,
>
> can anyone give me a pointer to a DTED (digital terrain elevation data),
> implementation (all levels 0 .. 5 if possible) in Ada? I'm looking for
> the data types representing the CD-contents and if possible a read -
> procedure.
> A pure C-implementation is also ok, I could use C2Ada to save hacking in
> the data types.
>
> Thanks
> J. Schr�er
>

Re: DTED - Format / IO in Ada?

[Joachim Schr�er]

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"Jeffrey Creem" <jeff@thecreems.com> schrieb im Newsbeitrag
news:qstF8.29869$sg2.7835878@typhoon.ne.ipsvc.net...
> my standard answer on all of thiese (if you are running on windows) is
find
> a COM/ActiveX binding
> and use GNATCOM to build an autobinding.

That's not an option.
First, I develop on windows but it has to run on Unix too.
Second and more important:
DTED is an important standard format and I want a quality implementation.
If I use a binding I have to live with the implementation. If I would get an
Ada
implementation where I'm not happy with I can alter it. The DTED-format is
not so complicated that this is not acceptable.

I just wrote these 3 lines to c.l.a in the hope someone could save me a few
days
of hacking.

    J. Schr�er

>
> This of course only works for Windows  and probably GNAT.
>
> A quick look at http://www.vterrain.org/Packages/ (found via google)
> shows a few packages with COM and DTED support.
>
>
> "Joachim Schr�er" <joachim.schroeer@dornier.eads.net> wrote in message
> news:3CE5295E.8020702@dornier.eads.net...
> > Hello,
> >
> > can anyone give me a pointer to a DTED (digital terrain elevation data),
> > implementation (all levels 0 .. 5 if possible) in Ada? I'm looking for
> > the data types representing the CD-contents and if possible a read -
> > procedure.
> > A pure C-implementation is also ok, I could use C2Ada to save hacking in
> > the data types.
> >
> > Thanks
> > J. Schr�er
> >
>
>