Without the typedefs for point_ll_XX many examples (even in the main page) are broken, correct ? I think this is a serious issue, because the main use for the library is for non-cartesian geometries, so if its not easy anymore then what is the value of using the library ? ------------------------------------------------------------------ We now show that it is also possible to use non-Cartesian points. When then an algorithm such as distance is used the library "feels" that it is handling geographic points and calculates the distance over the globe, in meters: point_ll_deg amsterdam, paris; parse(amsterdam, "52 22 23 N", "4 53 32 E"); parse(paris, "48 52 0 N", "2 19 59 E"); std::cout << "Distance A'dam-Paris: " << distance(amsterdam, paris) / 1000.0 << " kilometers " << std::endl;