public void TestNormalize()
{
Vector a = Vector.Create(1.0, 2.0);
Vector na = new Vector(2);
double old_len = VectorOperations.Normalize(a, ref na);
Assert.AreEqual((double)Math.Sqrt(5.0), old_len, FloatComparison.DefaultEps);
double new_len = VectorReductions.L2Norm(na);
Assert.AreEqual(1.0, new_len, FloatComparison.DefaultEps);
}
public void TestBallContainsAll()
{
// Ball encapsulating entire region
IVector diag = _tree.Root.InternalBounds.Diagonal;
IVector center = _tree.Root.InternalBounds.Center;
double len_half = VectorReductions.L2Norm(diag) * 0.5;
Ball b = new Ball(center, len_half);
BoundingVolumeSearch <Vector> s = new BoundingVolumeSearch <Vector>(_tree.Root);
List <Vector> result = new List <Vector>(s.FindInsideBoundingVolume(b));
Assert.AreEqual(7, result.Count);
}
public void TestL2Norm()
{
Vector a = Vector.Create(1.0, 2.0);
Assert.IsTrue(FloatComparison.Close(VectorReductions.L2Norm(a), (double)Math.Sqrt(5.0), FloatComparison.DefaultEps));
}