GeographicLib¶ GeographicLib is collection of libraries descended from an original C++ library by Charles Karney which started in 2008. That C++ library now offers: 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. Portions of the library (par