Actuated Force ============== An actuated force acts with equal and opposite magnitude on two points, with vector components x, y, and z defined in the reference frame. **Keyword Arguments** :param str name: Name given to the force. :param str ref_frame_key: Reference frame in which the vector components of the force are defined. :param str start_point: First point upon which the force acts. :param str end_point: Second point upon which the force acts, with negative magnitude. :param numeric force: Force magnitude. :param numeric x: X-component of the vector aligned with the force. :param numeric y: Y-component of the vector aligned with the force. :param numeric z: Z-component of the vector aligned with the force.