• Revolute2[cnum, point1, point2] models a rotational joint. point1 is constrained to be coincident with point2.
• Revolute2 constrains two degrees of freedom.
• Revolute2 is used in 2D models to model a shaft in a bearing, or a revolving hinge.
• The two equations constrain the X and Y coordinates of the two points to be coincident.
• See also: GenRevolute2, SetConstraints, SysCon, Translate2.