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| author | Kristian Evers <kristianevers@gmail.com> | 2018-06-27 14:43:23 +0200 |
|---|---|---|
| committer | Kristian Evers <kristianevers@gmail.com> | 2018-06-27 14:43:23 +0200 |
| commit | f2682ab8c90be155031b46775475499b921143c0 (patch) | |
| tree | 618d5bce18f41bd21ce09979e1b9009ab1b10e71 /docs/source | |
| parent | 50cef4d3d3b59c557295f042011ca08764cdbc2e (diff) | |
| download | PROJ-f2682ab8c90be155031b46775475499b921143c0.tar.gz PROJ-f2682ab8c90be155031b46775475499b921143c0.zip | |
Add better description to website frontpage
Diffstat (limited to 'docs/source')
| -rw-r--r-- | docs/source/index.rst | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/docs/source/index.rst b/docs/source/index.rst index 3e829274..d09424c8 100644 --- a/docs/source/index.rst +++ b/docs/source/index.rst @@ -24,7 +24,29 @@ PROJ .. 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/>`_. + PROJ is a generic coordinate transformation software, that transforms geospatial + coordinates from one coordinate reference system (CRS) to another. This + includes cartographic projections as well as geodetic transformations. + + PROJ includes :ref:`command line applications<apps>` for easy conversion of + coordinates from text files or directly from user input. In addition to the + command line utilities PROJ also exposes an + :ref:`application programming interface<reference>`, or API in short. The API + let developers use the functionality of PROJ in their own software without having + to implement similar functionality themselves. + + PROJ started purely as a cartography application letting users convert geodetic + coordinates into projected coordinates using a number of different cartographic + projections. Over the years, as the need has become apparent, support for datum + shifts has slowly worked it's way into PROJ as well. Today PROJ support more + than a hundred different map projections and can transform coordinates between + datums using all but the most obscure geodetic techniques. + + You can download the source code for PROJ on the :ref:`download section<download>` + and find links to prepackaged executables in the + :ref:`installation section<install>`. + + In addition to this website the PROJ documentation is also available in `PDF`_ + form. + +.. _`PDF`: https://raw.githubusercontent.com/OSGeo/proj.4/gh-pages/proj.pdf |