[Proj] The area of a rhumb line polygon
charles.karney at sri.com
Tue Dec 16 08:14:51 EST 2014
The calculation of the area of a geodesic polygon has been included in
GeographicLib since v1.4 (2010-09).
In the latest version v1.39, I've also included the equivalent
calculation when the edges of the polygon are rhumb lines. The
formulation is given in
and the online planimeter
implements this area calculation. I've also worked out the area when
the edges are great ellipses. For the formulation, see
An implementation is included in the Matlab package
Comments are welcome.
More information about the Proj