- weldx.transformations.orientation_point_plane_containing_origin(point, p_a, p_b)#
Determine a points orientation relative to a plane containing the origin.
The side is defined by the winding order of the triangle ‘origin - A - B’. When looking at it from the left-hand side, the ordering is clockwise and counter-clockwise when looking from the right-hand side.
The function returns 1 if the point lies left of the plane, -1 if it is on the right and 0 if it lies on the plane.
Note, that this function is not appropriate to check if a point lies on a plane since it has no tolerance to compensate for numerical errors.
Additional note: The points A and B can also been considered as two vectors spanning the plane.
point – Point
p_a – Second point of the triangle ‘origin - A - B’.
p_b – Third point of the triangle ‘origin - A - B’.
1, -1 or 0 (see description)
- Return type