public void Normalize()
{
Vector4F v, n1, n2;
float magnitude;
v = new Vector4F(3.0f, 4.0f, 0.0f, 0.0f);
n1 = v.Normalize();
n2 = v.Normalize(out magnitude);
Assert.AreEqual(1.0f, n1.Magnitude, 1e-14);
Assert.AreEqual(1.0f, n2.Magnitude, 1e-14);
Assert.AreEqual(5.0f, magnitude, 1e-14);
v = new Vector4F(3.0f, 0.0f, 4.0f, 0.0f);
n1 = v.Normalize();
n2 = v.Normalize(out magnitude);
Assert.AreEqual(1.0f, n1.Magnitude, 1e-14);
Assert.AreEqual(1.0f, n2.Magnitude, 1e-14);
Assert.AreEqual(5.0f, magnitude, 1e-14);
v = new Vector4F(0.0f, 3.0f, 4.0f, 0.0f);
n1 = v.Normalize();
n2 = v.Normalize(out magnitude);
Assert.AreEqual(1.0f, n1.Magnitude, 1e-14);
Assert.AreEqual(1.0f, n2.Magnitude, 1e-14);
Assert.AreEqual(5.0f, magnitude, 1e-14);
v = new Vector4F(0.0f, 0.0f, 3.0f, 4.0f);
n1 = v.Normalize();
n2 = v.Normalize(out magnitude);
Assert.AreEqual(1.0f, n1.Magnitude, 1e-14);
Assert.AreEqual(1.0f, n2.Magnitude, 1e-14);
Assert.AreEqual(5.0f, magnitude, 1e-14);
}
public void NormalizeZeroVector()
{
Vector4F v = new Vector4F(0.0f, 0.0f, 0.0f, 0.0f);
Vector4F n1 = v.Normalize();
Assert.IsNaN(n1.X);
Assert.IsNaN(n1.Y);
Assert.IsNaN(n1.Z);
Assert.IsTrue(n1.IsUndefined);
float magnitude;
Vector4F n2 = v.Normalize(out magnitude);
Assert.IsNaN(n2.X);
Assert.IsNaN(n2.Y);
Assert.IsNaN(n2.Z);
Assert.IsTrue(n2.IsUndefined);
Assert.AreEqual(0.0f, magnitude);
}