= Welcome to Proj4J =

[[TOC]]

Proj4J is a Java library to transform point coordinates from one geographic coordinate system to another, including datum transformations. 

The core of this library is a port of the [http://trac.osgeo.org/proj/ PROJ.4] C library. The basic algorithms, concepts and coordinate system definitions supplied by PROJ.4 are exposed via a Java class model which follows standard Java conventions and OO best practices. 

Proj4J is a part of the [http://wiki.osgeo.org/wiki/MetaCRS MetaCRS] group of projects, hosted by [http://osgeo.org OSGeo].  

== Download ==

'''Status: Currently this library is still being created, and is not yet ready for download'''

 * The current development source is available via anonymous SVN from http://svn.osgeo.org/metacrs/proj4j.


== Documentation ==

 * The current [http://trac.osgeo.org/proj/#Documentation PROJ.4 documentation].

== Development ==

 * [wiki:DesignGoals Design Goals]


== Related Resources ==

 * The PROJ.4 site has a comprehensive list of [http://trac.osgeo.org/proj/#RelatedResources resources] dealing with Coordinate Systems in general and the PROJ.4 library in particular.