GeographicLib is a small C++ library for
- geodesic and rhumb line calculations;
- conversions between geographic, UTM, UPS, MGRS, geocentric, and local cartesian coordinates;
- gravity (e.g., EGM2008) and geomagnetic field (e.g., WMM2020) calculations;
- computations on a triaxial ellipsoid.
It is licensed under the MIT License; see LICENSE.txt.
- Library documentation (latest release): https://geographiclib.sourceforge.io/C++/doc
- Library documentation (all versions): https://geographiclib.sourceforge.io/C++
- Change log: https://geographiclib.sourceforge.io/C++/doc/changes.html
- Git repository: https://github.com/geographiclib/geographiclib
- Releases are on the
releasebranch, and specific releases are tagged as, e.g.,r1.52,r2.0, etc. This is the appropriate branch for most users of GeographicLib. - The main branch is
mainand most development is done on thedevelbranch. These branches are for the developers of GeographicLib. Tagsv1.52,v2.0, etc., are aligned with the corresponding release tagsr1.52,r2.0, etc.
- Releases are on the
- Source distribution: https://sourceforge.net/projects/geographiclib/files/distrib-C++
- GeographicLib: https://geographiclib.sourceforge.io
- GeographicLib in various languages: https://geographiclib.sourceforge.io/doc/library.html#languages
- Author: Charles Karney, karney@alum.mit.edu