bool CalcValidCentroid(double(¢roid)[3], int start, int end, int increment, int numPoints);
bool CheckLinePointOrder();
bool isPointingCorrectly( int firstPointId, int secPointId, double(¢roid)[3], int contrPointId);
void CloseContourBottom(bool uPointOrder);
bool CalcValidCentroid(double(¢roid)[3], int start, int end, int increment, int numPoints);
bool CheckLinePointOrder();
bool isPointingCorrectly( int firstPointId, int secPointId, double(¢roid)[3], int contrPointId);
void CloseContourBottom(bool uPointOrder);