The user can create a joint entity as follows.
•Point, Direction
•Point: Selects a point on two bodies to define the location of planer joint.
•Direction: Defines the direction of z-axes of base and action markers as the axis of rotation.
•Body, Body, Point, Direction
•Body: Selects a base body of planer joint.
•Body: Selects an action body of planer joint.
•Point: Selects a point to define the location of planer joint.
•Direction: Defines the direction of z-axes of base and action markers as the axis of rotation.