Given: * An arbitrary **circular** cylinder (defined by startpoint, endpoint, and radius). An **Infinite cylinder is acceptable as well**, as long as it passes through those points and has the same radius. * An axis-aligned box (defined by its minimum and maximum point) * The box being inside the volume of the cylinder should also count as an intersection To test if the cylinder and the box intersect. Does such a test exist? EDIT: I found [this](https://math.stackexchange.com/questions/166863/intersection-between-a-cylinder-and-an-axis-aligned-bounding-box?rq=1) on the mathmatics stack exchange, though at the moment I do not follow it. If there is an example of it in code form that would be fantastic. **EDIT:** I think I have realized there is a far, far simpler solution. (Though it still involves rotations) 1: Rotate the cylinder to the Z axis 2: Apply the same rotation to the axis-aligned bounding box vertices 3: Get the distance of every vertex (in x,y) from 0,0. If *any* of them report a distance less than the radius of the cylinder, part of the box must overlap with the cylinder. I'm not positive, but I think that should work! If it does, I will put it into a full solution.