public void T11_ConeNormal()
{
Cone cone = new Cone();
Point[] p = new Point[3];
p[0] = new Point(0, 0, 0);
p[1] = new Point(1, 1, 1);
p[2] = new Point(-1, -1, 0);
Vector[] n = new Vector[3];
n[0] = new Vector(0, 0, 0);
n[1] = new Vector(1, -Math.Sqrt(2), 1);
n[2] = new Vector(-1, 1, 0);
n[0].Normalize();
n[1].Normalize();
n[2].Normalize();
//Stupid vectors in the book aren't normalized ;-p
Assert.AreEqual(n[0], cone.GetNormal(p[0]));
Assert.AreEqual(n[1], cone.GetNormal(p[1]));
Assert.AreEqual(n[2], cone.GetNormal(p[2]));
}