public MyVector3 MinCoord()
        {
            MyVector3 minCoord = new MyVector3(double.MaxValue, double.MaxValue, double.MaxValue);

            for (int i = 0, j = 0; i < vertexCount; i++, j += 3)
            {
                MyVector3 v = new MyVector3(vertexPos, j);
                minCoord = MyVector3.Min(minCoord, v);
            }
            return(minCoord);
        }