Hi Romain,
GeographicLib is a set of C++ classes, there is no such dependencies with PROJ4 (from my understanding).
I agree, I didn't see any reference.
I actually asked Barend if you guys had a look to this library because the library can do geodesic computation:
http://geographiclib.sourceforge.net/html/geodesic.html <http://geographiclib.sourceforge.net/html/geodesic.html> http://geographiclib.sourceforge.net/html/classGeographicLib_1_1Geodesic.htm...
<http://geographiclib.sourceforge.net/html/classGeographicLib_1_1Geodesic.html>However, I am not sure that Boost Geometry is able to perform "geodesic direct / inverse" computation (cf. links before). Any advice on this part?
Boost Geometry can do distance calculations on the ellipsoid, which are modelled as "strategies". But not this specific geodesic, neither direct nor inverse. It can currently do Vincenty and Andoyer. Because Boost.Geometry is designed with strategies, you might even mix the two libraries, using Boost.Geometry for normal calculations, creating a strategy using geographiclib. Didn't do this in practice yet. Regards, Barend