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Transport coordinate between earth(WGS-84) and mars in china(GCJ-02)
EvilTransform is a library for converting between geodetic coordinate systems, specifically WGS-84 (global Earth coordinate) and GCJ-02 (the “Mars” coordinate system used in Chinese mapping services). It provides functions to go from GCJ-02 to WGS-84, and vice versa, with variants including exact inversion. It is useful when dealing with map data in China, where many map providers apply coordinate obfuscation.
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.
OpenPMU is a collaborative project developing a software defined Phasor Measurement Unit for Smart Grids and electrical utilities. This project is currently hosted by Queen’s University Belfast.