GROUP LINES THAT INTERSECT A POINT.3dm (91.5 KB) I have a large number of planar surfaces and I’m trying to understand how they intersect each other. Specifically I would like to find places where two surfaces intersect a shared single surface. I used the Brep Brep intersection component to get the lines at their intersections. Next I used to Collision Many component to find the intersections of these lines.

I want to group the lines that intersect at a common point. I have been running into a problem where I can only group intersecting lines that also share a common surface. I am looking for cases where three lines intersect a point but don’t share a common surface.

Any help with this would be much appreciated. Thanks (230.0 KB)GROUP LINES THAT INTERSECT A POINT.gh (230.0 KB)