Re: lat-lon to UTM conversion.

jparker (jparker@mtg.saic.com)
Tue, 28 Apr 1998 17:27:45 -0400

For all map projection conversions we use the PROJ library distributed
by USGS. It includes all the library routines needed as well as a
simple comman line interface to perform conversions. I've checked
numbers from this package with many commercial products and they match
to several decimal places of meters. The manual for it is:

Cartographic Projection Procedures for the UNIX Environ-
ment--A User's Manual, (Evenden, 1990, Open-file report
90-284).
You can also visit the Map Projection Home Page at

http://everest.hunter.cuny.edu/mp.

I hope this helps.