public void GetMembershipFunctions(out IMemebershipFunction cold, out IMemebershipFunction warm, out IMemebershipFunction hot)
{
Coords c0;
Coords c1;
Coords c2;
c0.X = -270;
c0.Y = 1;
c1.X = 5;
c1.Y = 1;
c2.X = 20;
c2.Y = 0;
cold = new TriangularMemebershipFunction(c0, c1, c2);
c0.X = 5;
c0.Y = 0;
c1.X = 20;
c1.Y = 1;
c2.X = 30;
c2.Y = 0;
warm = new TriangularMemebershipFunction(c0, c1, c2);
c0.X = 20;
c0.Y = 0;
c1.X = 30;
c1.Y = 1;
c2.X = 100;
c2.Y = 1;
hot = new TriangularMemebershipFunction(c0, c1, c2);
}
private FuzzySet <AmmoStatus> GetAmmoStatusSet()
{
IMemebershipFunction lowFx = new ShoulderMembershipFunction(0f, new Coords(0f, 1f), new Coords(10f, 0f), 40f);
IMemebershipFunction okayFx = new TriangularMemebershipFunction(new Coords(0f, 0f), new Coords(10f, 1f), new Coords(30f, 0f));
IMemebershipFunction loadsFx = new ShoulderMembershipFunction(0f, new Coords(10f, 0f), new Coords(30f, 1f), 40f);
FuzzySet <AmmoStatus> set = new FuzzySet <AmmoStatus>();
set.Set(AmmoStatus.Low, lowFx);
set.Set(AmmoStatus.Okay, okayFx);
set.Set(AmmoStatus.Loads, loadsFx);
return(set);
}
private FuzzySet <DistanceToTarget> GetDistanceToTargetSet()
{
IMemebershipFunction closeFx = new ShoulderMembershipFunction(0f, new Coords(25f, 1f), new Coords(150f, 0f), 400f);
IMemebershipFunction mediumFx = new TriangularMemebershipFunction(new Coords(25f, 0f), new Coords(150f, 1f), new Coords(300f, 0f));
IMemebershipFunction farFx = new ShoulderMembershipFunction(0f, new Coords(150f, 0f), new Coords(300f, 1f), 400f);
FuzzySet <DistanceToTarget> set = new FuzzySet <DistanceToTarget>();
set.Set(DistanceToTarget.Close, closeFx);
set.Set(DistanceToTarget.Medium, mediumFx);
set.Set(DistanceToTarget.Far, farFx);
return(set);
}
private FuzzySet <Desirability> GetDesirabilitySet()
{
IMemebershipFunction undesirableFx = new ShoulderMembershipFunction(0f, new Coords(25f, 1f), new Coords(50f, 0f), 100f);
IMemebershipFunction desirableFx = new TriangularMemebershipFunction(new Coords(25f, 0f), new Coords(50f, 1f), new Coords(75f, 0f));
IMemebershipFunction veryDesirableFx = new ShoulderMembershipFunction(0f, new Coords(50f, 0f), new Coords(75f, 1f), 100f);
FuzzySet <Desirability> set = new FuzzySet <Desirability>();
set.Set(new FuzzyVariable <Desirability>(Desirability.Undesirable, undesirableFx));
set.Set(new FuzzyVariable <Desirability>(Desirability.Desirable, desirableFx));
set.Set(new FuzzyVariable <Desirability>(Desirability.VeryDesirable, veryDesirableFx));
return(set);
}
public void FuzzyExpressionBuilder()
{
Coords c0 = new Coords(2.5f, 0f);
Coords c1 = new Coords(5f, 1f);
Coords c2 = new Coords(7.5f, 0.25f);
TriangularMemebershipFunction membFunc = new TriangularMemebershipFunction(c1, c0, c2);
FuzzyVariable <Temperature> cold = new FuzzyVariable <Temperature>(Temperature.Cold, membFunc);
FuzzyVariable <Temperature> warm = new FuzzyVariable <Temperature>(Temperature.Warm, membFunc);
FuzzyVariable <Temperature> hot = new FuzzyVariable <Temperature>(Temperature.Hot, membFunc);
var exp = cold.AsExpression().And(warm).Or(hot.AsExpression().Not());
string expected = "((Cold AND Warm) OR NOT(Hot))";
Assert.IsNotNull(exp);
Assert.AreEqual(expected, exp.ToString());
}
public void TestTriangularMemebershipFunction()
{
Coords c0 = new Coords(2.5f, 0f);
Coords c1 = new Coords(5f, 1f);
Coords c2 = new Coords(7.5f, 0.25f);
TriangularMemebershipFunction membFunc = new TriangularMemebershipFunction(c1, c0, c2);
Assert.AreEqual(2.5f, membFunc.P0.X);
Assert.AreEqual(5f, membFunc.P1.X);
Assert.AreEqual(7.5f, membFunc.P2.X);
var result = membFunc.fX(0.0f);
Assert.AreEqual(0f, result);
result = membFunc.fX(3.75f);
Assert.AreEqual(0.5f, result);
result = membFunc.fX(5.0f);
Assert.AreEqual(1f, result);
result = membFunc.fX(6.25f);
Assert.AreEqual(0.625f, result);
result = membFunc.fX(10.0f);
Assert.AreEqual(0.25f, result);
}
