public void TestSetAmplitude()
{
var myCos = new Sinusoid();
myCos.Amplitude = 0.1337;
Assert.AreEqual(0.1337, myCos.Amplitude, 0.001, "Failed to set amplitude.");
}
public void TestSetPhase()
{
var myCos = new Sinusoid();
myCos.Phase = 90; // degrees
Assert.AreEqual(90, myCos.Phase, 0.001, "Failed to set phase.");
Assert.AreEqual(0, myCos.sample((1 / 2) * Math.PI), 0.001, "Sampled value of 90 deg shifted wave not expected.");
}
public void TestSetFrequency()
{
var myCos = new Sinusoid();
myCos.Frequency = 440; // Hz.
Assert.AreEqual(440, myCos.Frequency, 0.001, "Failed to set frequency.");
Assert.AreEqual(-1, myCos.sample(0.001136364), 0.001, "Sampled value of 440 Hz wave not expected.");
}
public void TestSetOffset()
{
var myCos = new Sinusoid();
myCos.Offset = 2;
Assert.AreEqual(2, myCos.Offset, 0.001, "Failed to set offset.");
Assert.AreEqual(3, myCos.sample(0), 0.001, "Sampled value of offset wave not expected.");
}
public void TestDefaultSample()
{
var myCos = new Sinusoid();
Assert.AreEqual(1, myCos.sample(0), 0.001, "Sample failed -- default cosine -- t = 0.");
Assert.AreEqual(0, myCos.sample((1.0 / 2) * Math.PI), 0.001, "Sample failed -- default cosine -- t = pi.");
Assert.AreEqual(-1, myCos.sample(1 * Math.PI), 0.001, "Sample failed -- default cosine -- t = 3/2 * pi.");
Assert.AreEqual(0, myCos.sample((3.0 / 2) * Math.PI), 0.001, "Sample failed -- default cosine -- t = 2 * pi");
}
public void TestDefaultConstructor()
{
var myCos = new Sinusoid();
Assert.AreEqual(1, myCos.Amplitude, 0.001, "Default amplitude not calculated correctly.");
Assert.AreEqual(1 / (2 * Math.PI), myCos.Frequency, 0.001, "Default frequency not calculated correctly.");
Assert.AreEqual(0, myCos.Phase, 0.001, "Default phase shift not calculated correctly.");
Assert.AreEqual(0, myCos.Offset, 0.001, "Default vertical offset not calculated correctly.");
}
public void TestSample()
{
// A, w, phi, y_offset
var myCos = new Sinusoid(0.5, 20.5, 0.25, 0.1);
double[] t = { 0.012195122, 0.088819333, 0.165443544, 0.242067755 };
Assert.AreEqual(0.6, myCos.sample(t[0]), 0.001, "Sample failed -- example cosine -- t = 0");
Assert.AreEqual(0.1, myCos.sample(t[1]), 0.001, "Sample failed -- example cosine -- t = 1/4 period");
Assert.AreEqual(-0.4, myCos.sample(t[2]), 0.001, "Sample failed -- example cosine -- t = 1/2 period");
Assert.AreEqual(0.1, myCos.sample(t[3]), 0.001, "Sample failed -- example cosine -- t = 3/4 period");
}
public void TestConstructor()
{
double A, w, phi, y_offset;
A = 0.5;
w = 20.5;
phi = 0.25;
y_offset = 0.1;
double amplitude, frequency, phase, offset;
amplitude = 0.5;
frequency = 3.262675; // Hz
phase = 14.32394; // deg
offset = 0.1;
var myCos = new Sinusoid(A, w, phi, y_offset);
Assert.AreEqual(amplitude, myCos.Amplitude, 0.001, "Amplitude not calculated correctly.");
Assert.AreEqual(frequency, myCos.Frequency, 0.001, "Frequency not calculated correctly.");
Assert.AreEqual(phase, myCos.Phase, 0.001, "Phase shift not calculated correctly.");
Assert.AreEqual(offset, myCos.Offset, 0.001, "Vertical offset not calculated correctly.");
}
public List <Vector2> Upwards_Graph(double totalRatio)
{
var pointss = new Sinusoid().Points(realbpm / (ratioUp / totalRatio), amplitude, detail, 0.5);
return(pointss.ToList());
}
