AnchorPoseALocal defines a constraint anchor point on the first body and three constraint axes. The movement of AnchorPositionBLocal on the second body is restricted relative to the fixed axis on the first body.

This constraint can be used to create custom constraints. For example using a minimum and maximum limits of (-∞, 0, 0) and (+∞, 0, 0) creates a PointOnLineConstraint where the constraint x-axis is the line axis. Using a minimum and maximum of (-∞, -∞, 0) and (+∞, +∞, 0) creates a PointOnPlaneConstraint where the constraint x- and y-axes define the plane and the plane is fixed on the first body. Using a minimum and maximum of (0, 0, 0) creates a BallJoint.

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