Is there anyone who has developed map projection library?

Is there anyone who has developed map projection library?

esp. source code in visual c++ class

thanks ahead

Yes!

Try http://www.remotesensing.org/proj/ . It can be compiled as a
library. Although not C++, it can be used with C++. This is widely
regarded as the most comprehensive, reliable and well tested
projection software available.

Paul Cooper

thanks ahead

proj is really a cool library that supports a lot of utilities.

There is a c++ version in Borland c++.
But not for Microsoft visual c++.
I am trying to port it into visual c++ class.

It seems to me somewhat curious.

proj is very old software, and is written in an OO style using C
syntax, not C++. However, in this case old is good, as the original
version was developed by a real projection guru. For VC, you should be
able to compile it as a DLL and simply call it. That works for VB.

Paul

Paul,
I have been looking at making a standalone projection utility that I
can use outside of my ARCView. I am a beginning programmer(I'm taking
my first "official" programming class at the local junior college). I
have a Vis Studio licensce (through work). My question to you is: How
would I make this a standalone executable? I realize I may need to make
a dll out of the code, but I want a simple user interface, to reproject
my scanned quads, and scanned maps from other clients.

If you could point me in the "right" direction, that would be helpful,

Randy