public void UpdatePopulations()
{
if (SelectedSort == 0)//enum
{
populations = populations.OrderBy(p => p.City).ToList();
}
else
{
populations = populations.OrderByDescending(p => p.PopulationNum).ToList();
}
Populations.Clear();
foreach (Population p in populations)
{
Populations.Add(p);
}
}
/// <summary>
/// Clear the Population and SeedGenres entries
/// </summary>
public void Clear()
{
foreach (Population population in Populations)
{
GenrePopulations.RemovePopulation(population.SeedPopulation);
}
if (SeedGenres != null)
{
GenrePopulations.RemovePopulation(SeedGenres);
SeedGenres = null;
}
Populations.Clear();
GenresAlreadyIncluded.Clear();
AlbumsAlreadyIncluded.Clear();
}
public async Task <Genome> FindPathAsync(Roteiro map, Genome seed = null)
{
if (Mutate == null || Crossover == null || Fitness == null || Selection == null)
{
throw new System.Exception("GA cant run without all operators");
}
var locals = map.Destinations.ToList();
locals.Add(map.Depot);
await routeService.Prepare(locals);
var rand = RandomSingleton.Instance;
var startNode = map.Depot;
Populations.Clear();
var popusize = PopulationSize;
if (seed != null)
{
Populations.Add(seed);
popusize--;
}
Populations.AddRange(
Enumerable.Range(0, popusize)
.Select(_ => Genome.Generator(map, Settings)));
await CalcFitness();
for (int i = 0; i < GenerationLimit; i++)
{
var newpopulations = new List <Genome>();
for (int j = 0; j < BestSolutionToPick; j++)
{
newpopulations.Add(Populations[j]);
}
while (newpopulations.Count < Populations.Count)
{
if (newpopulations.Any(e => e.Trucks.SelectMany(l => l.Locals).Count() != map.Destinations.Count))
{
throw new System.Exception();
}
// Selection
var(nodemom, nodedad) = Selection.SelectCouple(Populations);
// CrossOver
var sons = Crossover.Make(nodemom, nodedad);
// Mutation
sons = sons.Select(s => Mutate.Apply(s)).ToArray();
newpopulations.AddRange(sons);
}
Populations = newpopulations.ToList();
await CalcFitness();
Best = Populations.First();
}
return(Best);
}