public long Evaluate(PolygonalImage image)
{
Bitmap bitmap = new Bitmap(this.original.Width, this.original.Height);
image.DrawBitmap(bitmap);
image.Distance = BitmapDistance(this.original, bitmap, this.points);
return(image.Distance);
}
public static Population CreatePopulation(int nimages, int width, int height, int npolygons, int nsides)
{
PolygonalImage[] images = new PolygonalImage[nimages];
for (int k = 0; k < images.Length; k++)
{
images[k] = CreatePolygonalImage(width, height, npolygons, nsides);
}
return(new Population(images));
}
public static PolygonalImage CreatePolygonalImage(int width, int height, int npolygons, int nsides)
{
Polygon[] polygons = new Polygon[npolygons];
for (int k = 0; k < polygons.Length; k++)
{
polygons[k] = CreatePolygon(width, height, nsides, width / 5, height / 5);
}
PolygonalImage image = new PolygonalImage(polygons);
return(image);
}
public PolygonalImage GetBestImage()
{
long best = 0;
PolygonalImage selected = null;
foreach (PolygonalImage image in this.images)
{
if (selected == null || best > image.Distance)
{
best = image.Distance;
selected = image;
}
}
return(selected);
}
public PolygonalImage Mutate(PolygonalImage image)
{
Polygon[] newpolygons = new Polygon[image.Polygons.Length];
//System.Array.Copy(image.Polygons, newpolygons, newpolygons.Length);
//int p = random.Next(newpolygons.Length);
//newpolygons[p] = this.MutatePolygon(newpolygons[p]);
for (int k = 0; k < newpolygons.Length; k++)
{
newpolygons[k] = this.MutatePolygon(image.Polygons[k]);
}
return(new PolygonalImage(newpolygons));
}
public Population Mutate(Mutator mutator, Evaluator evaluator)
{
PolygonalImage[] newimages = new PolygonalImage[this.images.Length];
for (int k = 0; k < this.images.Length; k++)
{
PolygonalImage newimage = mutator.Mutate(this.images[k]);
if (this.images[k].Distance == 0)
{
evaluator.Evaluate(this.images[k]);
}
if (this.images[k].Distance < evaluator.Evaluate(newimage))
{
newimages[k] = this.images[k];
}
else
{
newimages[k] = newimage;
}
}
newimages = newimages.OrderBy(i => i.Distance).ToArray();
//PolygonalImage[] newimages = this.images.OrderBy(i => i.Distance).ToArray();
for (int k = 0; k < newimages.Length / 2; k++)
{
// newimages[k] = mutator.Mutate(newimages[k]);
// newimages[k + newimages.Length / 2] = mutator.Mutate(newimages[k]);
newimages[k + newimages.Length / 2] = newimages[k];
}
return(new Population(newimages));
}
