GeographicLib

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Downloads: 13,699 This Week

Last Update: 2025-02-17

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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.

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License

MIT License

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awotji Posted 2019-03-09

I have used this to calculate Ocad mapping software angle correction GD: declination + convergence. Just updated WMM2015v2. Need to overwrite WMM2015 files ? Didn't find helps, but it looks that need to overwrite ?
wallw Posted 2017-05-19

Very fast and very accurate. Don't reinvent the wheel! Use this!
lzjtliwei Posted 2016-12-08

It has some useful for me, thanks!
zonaopengts Posted 2016-09-10

Hi Visit the blog "Zona OpenGTS" (www) zona-opengts.blogspot.com Thanks !!!
frougon Posted 2016-03-11

GeographicLib is a great library. I use it in FFGo to solve the geodetic inverse and direct problems, as well as to get magnetic declination data, and it works great! Having a ready-to-use algorithm that is more robust than the Vincenty algorithm for the geodetic inverse problem (and also more accurate, as I understood it) it invaluable. Thank you so much, Mr. Karney! (for info, I use the Python 3 implementation for geodetic calculations and call MagneticField as an external program to get magnetic declination data)

Additional Project Details

Intended Audience

Science/Research, Advanced End Users, Developers

User Interface

Command-line

Programming Language

MATLAB, Python, C++, C, JavaScript, Java

Related Categories

MATLAB GIS Software, Python GIS Software, C++ GIS Software, C GIS Software, JavaScript GIS Software

Registered

2009-10-17

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