Get the joint anchor point, in world coordinates. This returns the point on body 2. You can think of the ball and socket part of a universal joint as trying to keep the result of dJointGetBallAnchor() and dJointGetBallAnchor2() the same. If the joint is perfectly satisfied, this function will return the same value as dJointGetUniversalAnchor to within roundoff errors. dJointGetUniversalAnchor2 can be used, along with dJointGetUniversalAnchor, to see how far the joint has come apart.