# Object (Constraint) A Constraint is a special Object and Connector, which links two or more markers. A Constraint leads to algebraic equations, which exactly fulfill special constraints on the kinematic behavior of the multibody syste, such as a constraint on a coordinate or a distance constraint. ```{toctree} :maxdepth: 1 objectConstraintGeneral ObjectConnectorDistance ObjectConnectorCoordinate ObjectConnectorCoordinateVector ```