Gnome::Art::Point replacement to Goocanvas

[Hydexon <cristopher7sosa gmail com>]

Hello!, i'm rewritting the FlowChart component, porting from Gtkmm 2 and GnomeCanvasmm to Gtkmm 3 and Goocanvasmm, and i need to know what are correct replacement the following code:

 virtual Gnome::Art::Point src_connection_point() = 0;

 virtual Gnome::Art::Point dst_connection_point(const Gnome::Art::Point& src) = 0;

 virtual Gnome::Art::Point connection_point_vector(double dx, double dy) = 0;

i see the Goocanvasmm refernce manual and the only similar are Goocanvas::Points.

Thanks.