public void TestConvexHull1()
{
List <Point> al = new List <Point>();
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 5; j++)
{
al.Add(new Point(i, j));
}
}
Poly p = Poly.ConvexHull(new Poly(al.ToArray()));
Assert.AreEqual(4, p.point.Length);
}