GeographicLib: GeographicLib (library for converting geographic coordinate systems) GeographicLib: GeographicLib: GeographicLib is a small C++ library for: geodesic and rhumb line GeographicLib: calculations; conversions between geographic, UTM, UPS, MGRS, GeographicLib: geocentric, and local cartesian coordinates; gravity (e.g., EGM2008) GeographicLib: and geomagnetic field (e.g., WMM2020) calculations. GeographicLib: GeographicLib: Homepage: https://sourceforge.net/projects/geographiclib GeographicLib: GeographicLib: GeographicLib: