Ada95 representation of geographic coordinate system(s)

Ada95 representation of geographic coordinate system(s)

[Steve Quinlan]

If anyone has or knows of any Ada95 design or implementation of one or
multiple geographic coordinate systems, the information would be
appreciated.

Re: Ada95 representation of geographic coordinate system(s)

[Michael F Brenner]

Actually, you might be surprized at how much geography is no 
longer done exclusively by DOD, but has been privatized, and
made available for commerce by those private companies that are
doing it.

I have some Free code that does a simple spherical earth model,
including intersections of great circles on the earth, 
dead reckoning, travelling along great circles, and converting
plane to spherical trigonometry. 

I do not know of a Free source of source code for the various
geodetic, oblate, etc. systems of geographical coordinates.

However, the original question is not complete. Could you give
more details on what you are looking for?   

Previous Response > why don't you ask the American DoD, 
                  > I'm sure they'll give you free
                  > access to all their source code. 

Steve Quinlan > If anyone has or knows of any Ada95 design or 
              > implementation of one or multiple geographic 
              > coordinate systems, the information would be
              > appreciated.       

Re: Ada95 representation of geographic coordinate system(s)

[Michael F Brenner]

Tarjei.Jensen@kvaerner.com asked me to post this reponse:
---------------------------------------------------------------

I have trouble posting from my account. So here goes by mail.

> I have some Free code that does a simple spherical earth model,
> including intersections of great circles on the earth,
> dead reckoning, travelling along great circles, and converting
> plane to spherical trigonometry.

Would that be useful in one of the repositories or is is already there?

> I do not know of a Free source of source code for the various
> geodetic, oblate, etc. systems of geographical coordinates.

There is acutally quite a lot of more or less free software available
for GIS. The ones I am aware of is grass and moss. The problem with
these are that they are written in C. However I believe that it is
pos
sible to get useful information from these programs regarding how to
represent coordinates. GIS people seems to think that something called
quadtrees are really neat. I am basically clueless about these.

I think grass is the most modern. I believe it is being maintained by a
commercial company.


Greetings,