.. _home:

PROJ
###############################################################################

.. toctree::
   :maxdepth: 3
   :hidden:

   about
   news
   download
   install
   usage/index
   apps/index
   operations/index
   resource_files
   geodesic
   development/index
   community/index
   faq
   glossary
   references

.. only:: html

    PROJ is a standard UNIX filter function which converts geographic longitude
    and latitude coordinates into cartesian coordinates (and vice versa), and it is
    a C API for software developers to include coordinate transformation in their
    own software. PROJ is maintained on `GitHub <https://github.com/OSGeo/proj.4/>`_.