public void EvaluateFitnessAllInOneRow()
{
var fitness = new StretchFitness(definitionSample);
var chromosome = new StretchChromosome(24, 5, 0, 1, 2, 3, 4);
Assert.That(
fitness.WeightedDistanceFor(chromosome),
Is.EqualTo(1 * 7 + 2 * 4 + 3 * 2 + 1 * 6)
);
Assert.AreEqual(0.2437085, fitness.Evaluate(chromosome), precision);
}
public void DefineFitnessFromString()
{
var fitness = new StretchFitness(definitionSample);
Assert.That(fitness.Width, Is.EqualTo(6));
Assert.That(fitness.Height, Is.EqualTo(4));
Assert.That(fitness.Nodes.Length, Is.EqualTo(5));
Assert.That(
fitness.Nodes.Select(n => n.Name),
Is.EqualTo(new string[] { "Superman", "Kryptonite", "LexLuthor", "Batman", "Joker" })
);
}
public void EvaluateFitnessWithDiagonal()
{
var fitness = new StretchFitness(definitionSample);
var chromosome = new StretchChromosome(24, 5, 0, 7, 14, 21, 16);
var sqrt2 = Math.Sqrt(2);
Assert.AreEqual(
fitness.WeightedDistanceFor(chromosome),
sqrt2 * 7 + 2 * sqrt2 * 4 + 3 * sqrt2 * 2 + sqrt2 * 6,
precision
);
Assert.AreEqual(0.3446559, fitness.Evaluate(chromosome), precision);
}
public void EvaluateGeneralFitness()
{
var fitness = new StretchFitness(definitionSample);
var chromosome = new StretchChromosome(24, 5, 5, 12, 19, 0, 23);
var diag = Math.Sqrt(34);
var diag2 = Math.Sqrt(25);
var diag3 = Math.Sqrt(29);
Assert.AreEqual(
fitness.WeightedDistanceFor(chromosome),
diag3 * 7 + diag2 * 4 + 5 * 2 + diag * 6,
precision
);
Assert.AreEqual(0.9268313, fitness.Evaluate(chromosome), precision);
}
public override IFitness CreateFitness()
{
if (string.IsNullOrEmpty(m_problemDefinition))
{
return(null);
}
try
{
m_fitness = new StretchFitness(m_problemDefinition);
InitializeDrawingScales();
return(m_fitness);
}
catch (Exception)
{
var md = new MessageDialog(Context.GtkWindow,
DialogFlags.DestroyWithParent, MessageType.Error,
ButtonsType.Close, "Error loading file");
md.Run();
md.Destroy();
return(null);
}
}
