Category "plane"

Scikit-Spatial Gives Weird Best-Fit Plane using Plane.best_fit

I am using scikit-spatial to find the best-fit plane for a list of 3D points. It usually works well for other lists, but this one is giving me a bit of trouble.

Mapping coordinates from plane given by normal vector to XY plane

So, I have this algorithm to calculate cross-section of 3D shape with plane given with normal vector. However, my current problem is, that the cross-section is

Line of intersection between two planes

How can I find the line of intersection between two planes? I know the mathematics idea, and I did the cross product between the the planes normal vectors bu