/// <summary>
/// Crossover operator.
/// </summary>
///
/// <param name="pair">Pair chromosome to crossover with.</param>
///
/// <remarks><para>The method performs crossover between two chromosomes interchanging
/// range of genes (array elements) between these chromosomes.</para></remarks>
///
public override void Crossover(AForge.Genetic.IChromosome pair)
{
ModelItemArrayChromosome p = (ModelItemArrayChromosome)pair;
// check for correct pair
if ((p != null) && (p.Mic.Length == Mic.Length))
{
// crossover point
int crossOverPoint = rand.Next(Mic.Length - 1) + 1;
// length of chromosome to be crossed
int crossOverLength = Mic.Length - crossOverPoint;
// temporary array
uint[] temp1 = new uint[crossOverLength];
uint[] temp2 = new uint[crossOverLength];
ObjectItem[] temp3 = new ObjectItem[crossOverLength];
// copy part of first (this) chromosome to temp
Array.Copy(start, crossOverPoint, temp1, 0, crossOverLength);
Array.Copy(end, crossOverPoint, temp2, 0, crossOverLength);
Array.Copy(Micp, crossOverPoint, temp3, 0, crossOverLength);
// copy part of second (pair) chromosome to the first
Array.Copy(p.start, crossOverPoint, start, crossOverPoint, crossOverLength);
Array.Copy(p.end, crossOverPoint, end, crossOverPoint, crossOverLength);
Array.Copy(p.Micp, crossOverPoint, Micp, crossOverPoint, crossOverLength);
// copy temp to the second
Array.Copy(temp1, 0, p.start, crossOverPoint, crossOverLength);
Array.Copy(temp2, 0, p.end, crossOverPoint, crossOverLength);
Array.Copy(temp3, 0, p.Micp, crossOverPoint, crossOverLength);
}
}
public double Evaluate(AForge.Genetic.IChromosome chromosome)
{
uint[] Start = (uint[])((ModelItemArrayChromosome)chromosome).Start;
uint[] End = (uint[])((ModelItemArrayChromosome)chromosome).End;
ModelItem[] Mic = (ModelItem[])((ModelItemArrayChromosome)chromosome).ModelItems;
ModelItemCollection SItems = ((ModelItemArrayChromosome)chromosome).SItems;
ObjectItem[] Micp = ((ModelItemArrayChromosome)chromosome).DyamicProperties;
int[] t = new int[Mic.Length]; int k; for (k = 0; k < t.Length; k++)
{
t[k] = k;
}
Array.Sort((uint[])Start.Clone(), t); uint[] EDTS = (uint[])End.Clone(); Array.Sort(EDTS);
Double[] Vol = new double[((ModelItemArrayChromosome)chromosome).Length + 1]; k = 0;
for (uint dt = Start[0]; dt <= EDTS[EDTS.Length - 1]; dt++, k++)
{
Vol[k] = getIntersectsVolume(Mic, Micp, SItems, dt, Start, End, t);
}
return(-getMaxVolume(Vol));
}
