PointState class
class PointState { static const int NULL_STATE = 0; static const int ADD_STATE = 1; static const int PERSIST_STATE = 2; static const int REMOVE_STATE = 3; }
class PointState { static const int NULL_STATE = 0; static const int ADD_STATE = 1; static const int PERSIST_STATE = 2; static const int REMOVE_STATE = 3; }