public DnaDrawing(PolygonChromosome best)
{
Polygons = best.GetPolygons().Select(p => new DnaPolygon()
{
Brush = Mapper.Map <DnaBrush>(p.Brush),
Points = Mapper.Map <List <DnaPoint> >(p.Points)
})
.ToList();
}
private void StartEvolution()
{
SetupSourceColorMatrix();
if (currentDrawing == null)
{
currentDrawing = GetNewInitializedDrawing();
}
lastSelected = 0;
var selection = new EliteSelection();
// var selection = new CustomSelection(20);
var crossover = new OrderedCrossover();
// var crossover = new CycleCrossover();
// var crossover = new CutAndSpliceCrossover();
// var crossover = new OnePointCrossover(2);
var mutation = new CustomMutation();
// var mutation = new UniformMutation(true);
var fitness = new DrawingFitness(sourceColors);
var chromosome = new PolygonChromosome();
var population = new Population(10, 100, chromosome);
_ga = new GeneticAlgorithm(population, fitness, selection, crossover, mutation);
_ga.Termination = new TimeEvolvingTermination(TimeSpan.FromHours(4));
//
_ga.GenerationRan += (sender, args) =>
{
generation++;
var best = _ga.Population.CurrentGeneration.Chromosomes.OrderBy(c => c.Fitness).First() as PolygonChromosome;
var drawing = new DnaDrawing(best);
if (best.Fitness.Value <= errorLevel)
{
errorLevel = best.Fitness.Value;
lock (currentDrawing)
{
currentDrawing = drawing;
}
selected++;
}
};
_ga.Stopped += (sender, args) =>
{
Stop();
};
_ga.Start();
// while (isRunning)
// {
// DnaDrawing newDrawing;
// lock (currentDrawing)
// {
// newDrawing = currentDrawing.Clone();
// }
// newDrawing.Mutate();
//
// if (newDrawing.IsDirty)
// {
// generation++;
//
// double newErrorLevel = FitnessCalculator.GetDrawingFitness(
// newDrawing,
// sourceColors);
//
// if (newErrorLevel <= errorLevel)
// {
// selected++;
// lock (currentDrawing)
// {
// currentDrawing = newDrawing;
// }
// errorLevel = newErrorLevel;
// }
// }
// //else, discard new drawing
// }
}
