Infrastructure¶

The repositories for all implementations are on GitHub. The project is hosted on SourceForge and it hosts GeographicLib’s web pages and the file system for package distribution.

Supported languages¶

The C++ version of GeographicLib offers the broadest range of features. However, the geodesic routines are available several other languages. Here is a list of the supported languages.

Online utilities¶

The C++ library provides some online tools using GeographicLib

• geographic coordinate conversions between latitude/longitude, UTM or UPS, and MGRS;

• direct and inverse geodesic calculations;

• calculate the perimeter and area of geodesic polygons;

• various geodesic calculations using JavaScript;

• a tool for displaying geodesics on Google Maps;

• rhumb line calculator;

• evaluate the geoid height for EGM84, EGM96, and EGM2008.

Datasets¶

Some classes in the C++ library and the geoid functions in the Octave package require datasets to be available. Here are the links for the instructions for how to download and install these.

Test data¶

High quality test data is used to test GeographicLib for

• the geodesic problem

• the transverse Mercator projection

• geoid heights

Other implementations¶

Others have written independent implementations of the geodesic algorithms or have built other tools using GeographicLib:

• Mathematica: Kei Misawa, mathematica-geodesic.

• R: R. J. Hijmans, geosphere.

• Rust: Michael Kirk, Rust implementation of GeographicLib.

• Go: Patrick Yukman, A Go port of GeographicLib.

• Python via Cython: Sergey Serebryakov, Cython extension module for GeographicLib.

• JavaScript via emscripten: William Wall, OpenSphere ASM.

• JavaScript: Jaco, a graphical tool for geodesic calculations.

• Swift native: Mike Roncone, Swift Implementation of the geodesic routines in GeographicLib.

• Swift wrapper: Scott Hoyt, Swift wrapper for the geodesic routines in GeographicLib-C.