Removing a mitre line to generate flat 2d


I have a complex geometry pipeline but i internalized the data just to keep it sane. What I am trying to achieve here is a flat grouped line object that I can use with open nest. Which in my very amateur experience needs to be curves or group of curves. I have attached the definition but I think I am complicating it too much.
Thank you,
Karan. (51.9 KB)

I don’t understand what you want to do. Can you give some more details or an example?

My question is will it remain generically depended on the angle bisector of the plane.Because I cant possibly make assumption that it would work in all angles right ?