Hello,

I have a collection of planes and cylinders.

I also have a collection of points.

I'd like a library that tells me which side of a plane/cylinder (surface) a point is on (its surface sense)

Does anything like this exist? Preferably something for Python or C#.

Regards,

-TP

The math for this is not difficult. Why would you need a library?

If a plane is specified by a point P and a normal vector N, the sign of dot_product(X-P,N) tells you what side of the plane the point X is on. For the cylinder, compute the distance from X to the axis of the cylinder and compare to the radius of the cylinder (or compare their squares, so you don't have to call sqrt).