A plane joint allows sliding or rotating movements on the specified plane. It constraints the xy plane of the action marker in the same plane with the xy plane of the base marker. The location of the planar joint decides a point in space through which joint’s plane of motion passes. The orientation vector of the planar joint is perpendicular to joint’s plane of motion. The rotational axis of the planar joint, which is normal to the joint’s plane of motion, is parallel to the orientation vector. This joint has one rotational and two translational degrees of freedom. The z-axis of this joint is parallel to the plane normal.
Figure 1 Planar Joint icon on Working Window
Figure 2 Planar icon of the Joint group in the Professional tab