public void Dot()
{
for (int i = 0; i < count; i++)
{
Quaternion a = new Quaternion();
Quaternion b = new Quaternion();
Quaterniond ad = new Quaterniond();
Quaterniond bd = new Quaterniond();
RandomQuaternion(ref a, ref ad);
RandomQuaternion(ref b, ref bd);
float value = Quaternion.Dot(a, b);
double valued = Quaterniond.Dot(ad, bd);
Assert.True(Approximate(value, valued));
}
}
/// <summary>
/// <para>Returns the angle in degrees between two rotations a and b.</para>
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
public static double Angle(Quaterniond a, Quaterniond b)
{
double f = Quaterniond.Dot(a, b);
return(Mathd.Acos(Mathd.Min(Mathd.Abs(f), 1f)) * 2f * 57.29578f);
}
public static bool operator ==(Quaterniond lhs, Quaterniond rhs)
{
return(Quaterniond.Dot(lhs, rhs) > 0.999999f);
}