Modeling Options

The user can create a joint entity as follows.

•     Point, Direction, Direction

•    Point: Selects a point on two bodies to define the location of universal joint.

•    Direction: Defines the z-axis of base marker, which should be oriented along one of the rotational axes of the cross. The x-axis of base marker will be defined to be orthogonal to the z-axis of base marker at once.

•    Direction: Defines the z-axis of action marker, which should be oriented along the other rotational axis of cross. The x-axis of action marker will be defined to be orthogonal to the z-axis of the action marker, as explained in the description of universal joint. If the user wants to define the orientation of z-axis to be normal on the screen, click the same position as the origin of universal joint.

•     Body, Body, Point, Direction, Direction

•    Body: Selects a base body of universal joint.

•    Body: Selects an action body of universal joint.

•    Point: Selects a point to define the location of universal joint.

•    Direction: Defines the z-axis of base body, which should be oriented along one of the rotational axes of the cross. The x-axis of base body will be defined to be orthogonal to the z-axis of base body at once.

•    Direction: Defines the z-axis of action marker, which should be oriented along the other rotational axis of cross. The x-axis of action marker will be defined to be orthogonal to the z-axis of the action marker, as explained in the description of universal joint. If the user wants to define the orientation of z-axis to be normal on the screen, click the same position as the origin of universal joint.

•     Point, Direction, Direction, Direction, Direction

•    Point: Selects a point on two bodies to define the location of universal joint.

•    Direction: Defines the z-axis of base marker.

•    Direction: Defines the x-axis of base marker.

•    Direction: Defines the z-axis of action marker.

•    Direction: Defines the x-axis of action marker.

•     Body, Body, Point, Direction, Direction, Direction, Direction

•    Body: Selects a base body of universal joint.

•    Body: Selects an action body of universal joint.

•    Point: Selects a point to define the location of universal joint.

•    Direction: Defines the z-axis of base marker.

•    Direction: Defines the x-axis of base marker

•    Direction: Defines the z-axis of action marker.

•    Direction: Defines the x-axis of action marker.