PROJ.4 - Cartographic Projections Library

This web page relates to the PROJ.4 Cartographic Projections library originally written by Gerald Evenden then of the USGS. The primary version of this web page can be found at http://www.remotesensing.org/proj.

Download

The current development source is available by anonymous CVS. It can be checked out as the "proj" component. Review the OSRS CVS HOWTO if you need more information on using OSRS anonymous CVS.

The following files are available from the proj ftp directory:

PROJ.4.3.3.tar.gz: The last PROJ 4.3 release produced by Gerald Evenden (classic PROJ.4).
from_kai: A snapshot of everything on the kai.er.usgs.gov/pub/PROJ.4 directory as of March/2000.
OF90-284.pdf: The main users manual for PROJ.
proj-4.4.0.tar.gz: Current release.

Mailing List

This mailing list is for development and user discussions of the PROJ.4 library.

To subscribe send mail to majordomo@remotesensing.org, with no subject. In the body type:

subscribe osrs-proj

To unsubscribe send mail to majordomo@remotesensing.org, with no subject, and in the body type:

unsubscribe osrs-proj

To post an email to this list, send email to: osrs-proj@remotesensing.org. To review previous posts visit the web archive.

Plans

I (Frank Warmerdam - warmerda@home.com) have been using PROJ.4 for a number of projects of mine. PROJ.4 has been without maintenance for nearly five years now since Gerald Evenden retired. I have been in contact with him, and he has indicated no interest in actively maintaining PROJ.4.

It is my intention for this version (here at remotesensing.org) to be the new official version of PROJ.4. So far I have redone the makefiles and configuration mechanism to use automake, autoconf and libtool. As well as couple of portability fixes have been incorporated.

It is my hope to involve the GRASS, MapServer, and OGDI communities all of which use some version of PROJ.4 though in some cases with substantial changes. I am also using PROJ.4 in my own projects, including using it as the basis of OpenGIS inspired coordinate transform services.

If you are a user of PROJ.4, and/or are interested in contributing please drop me a line and join the mailing list.