Common surface

I would like to know how the common operation works. Because i'm trying to search the common surface between 2 3D objects (with no interference) with draw application and i have no result. The operator works just to find common vloumes?
Thank you

Paul Jimenez's picture

Have you tried using Shells instead of Solids?

andria's picture

No I'll try it thanks, but how to change the solid to be a shell?Because i create a box and another one they don't interfer but have just a common surface.

Paul Jimenez's picture

You can use TopExp_Explorer specifying TopAbs_SHELL, or even more easily use BRepTools::OuterShell to get the Shell from the Solid.