private Vector3f getSpatialTranslation(){
        if(motionState.isApplyPhysicsLocal()){
            return spatial.getLocalTranslation();
        }
        return spatial.getWorldTranslation();
    }
Access whichever spatial translation corresponds to the physics location.

@return the pre-existing vector (not null)
jme3-jbullet/src/main/java/com/jme3/bullet/control/RigidBodyControl.java