GoogleNavigation Framework Reference

GMSGeometrySignedArea

extern double GMSGeometrySignedArea(GMSPath *_Nonnull path)

Returns the signed area of a geodesic polygon defined by path on Earth.

The result has the same absolute value as GMSGeometryArea(); it is positive if the points of path are in counter-clockwise order, and negative otherwise.

The same restrictions as on GMSGeometryArea() apply.