public int Handle(RationalInfo info)
{
Rational r = info.rational;
float cents = (float)r.ToCents();
float distance = (float)info.distance;
float harm = 1f / distance;
//float harm = Utils.GetHarmonicity(distance); // harmonicity: 0..1
float x = cents; // 0..1200
// use id as a tip
string id = String.Format("{0} {1} {2} {3:F2} {4}",
r.ToString(),
r.FormatMonzo(),
distance,
r.ToCents(),
_temperament.FormatRational(r)
);
_image.Line(Point.Points(x, 0, x, harm * 3))
.Add(id: id)
.FillStroke(Color.Empty, Color.LightGray, harm * 2);
string fraction = r.FormatFraction("\n");
_image.Text(new Point(x, 0), fraction, harm * 2f, lineLeading: 0.8f, align: Image.Align.Center)
.Add()
.FillStroke(Color.Black, Color.Empty);
return(1);
}
override protected string ValueToText(double value)
{
int primeIndex = (int)value;
int prime = Rationals.Utils.GetPrime(primeIndex);
Rational r = new Rational(prime);
return(r.FormatFraction());
}
void Test1_Rationals()
{
Assert.Equals(new Rational(1), Rational.One);
Assert.Equals(new Rational(2), Rational.Two);
var r0 = new Rational(4, 5);
var r1 = new Rational(6, 4);
Assert.Equals(new Rational(4, 5), r0);
Assert.Equals("4/5", r0.FormatFraction());
Assert.Equals("4/5", r0.ToString());
Assert.Equals("3/2", r1.ToString());
Assert.Equals("6/5", (r0 * r1).FormatFraction());
Assert.Equals("8/15", (r0 / r1).FormatFraction());
var r3 = new Rational(81, 80);
Assert.Equal("|-4 4 -1>", r3.FormatMonzo());
Assert.Equal("|-2 4 -1}", r3.FormatNarrowPowers());
}
