Equivalent to PolyNode->IsOpen() in V2?

[EricAtPlanGrid]

With the disclaimer that I am quite a newb when it comes to analytic clipping, so please forgive me if the question is off base :)

In V1, when we convert a PolyTree solution, we take advantage of PolyNode->IsOpen() to know if the input path was open or closed. With Clipper2, Paths64 is simply std::vector<Point64> so I'm unsure how to recover this information. Unless, closed paths have path[0] == path[path.size() - 1] ?

Or does it even make sense to have a mix of open and closed paths in the subject? Any help is much appreciated! 🙏🏻

Thank you so much for all your work, I am really hoping we can migrate to the new version!

[AngusJohnson]

Hi Eric, and welome to Clipper2 Discussion.
As the documentation states, Polytrees (in Clipper2) will never contain open paths.
If the clipping op includes open paths, then Clipper64/ClipperD's Execute will return them via a separate Paths64/PathsD parameter.
I made this change from Clipper1 because open paths will never be contained by or will themselves contain other paths, so it made no sense including them in Polytree objects.

[EricAtPlanGrid]

Thank you so much! Now I see, there is an overload of Execute which has the final Paths64 open_solution parameter.

Also, just wanted to mention the documentation currently mislabels that final parameter as Paths64& open_olution