void CollisionWorldDistanceField::checkRobotCollision(const CollisionRequest &req, 
                                                      CollisionResult &res, 
                                                      const CollisionRobot &robot, 
                                                      const planning_models::KinematicState &state) const
{
  boost::shared_ptr<GroupStateRepresentation> gsr;
  checkRobotCollision(req, res, robot, state, gsr);
}
void CollisionWorldDistanceField::checkRobotCollision(const CollisionRequest &req, 
                                                      CollisionResult &res, 
                                                      const CollisionRobot &robot, 
                                                      const robot_state::RobotState &state) const
{
  boost::shared_ptr<GroupStateRepresentation> gsr;
  checkRobotCollision(req, res, robot, state, gsr);
}