Hi Stefan,
struct my_point{ typedef point_tag tag; typedef mpl::int_<2> dimension; typedef double coordinate_type; typedef cs::cartesian coordinate_system; //accessors here, haven't lookup up how those are implemented };
I do consider this better than the macro, even in this case.
Personally I don't but I guess it's a matter of taste. A private discussion shew that there might not be unanimity about those macros internally as well. So we might decide to make the existence of the 2 ways clearer in the docs (I mean: manual and macro registration) rather than focusing on the macro way. However I don't think we will go for the third way you propose - 3 ways to do would be a bit confusing to the reader. Does that make sense to you? Regards Bruno