How to extract exterior curve of curtain wall panels in plan

[Marcel_Rijsmus]

Have a look here for something similar.
I’m not saying its a solution, but a nudge in the right direction maybe.

Embedded wall

I have embedded curtain walls (2) inside a normal wall (1) The curtain wall has a basic wall as a panel how do i get the geometry in the red circle? assuming the bottom of the wall has an offset to the level the wall might be curved aswell the hight to the top of the curtain wall is a bonus wall by face (spline based) is xtra bonus volume of the latter, well… drawing is crap, sorry [image]