public static void RasterizeVectorDrawing(Graphics graphics, VectorDrawing vectorDrawing)
{
foreach (var coloredTriangle in vectorDrawing.Vectors)
{
FillColoredTriangle(graphics, coloredTriangle);
}
}
public long CalculateFitness(VectorDrawing vectorDrawing, Bitmap bitmap)
{
if (ReferenceEquals(null, bitmap))
{
return(0L);
}
var distance = 0L;
using (var image = new Bitmap(bitmap.Width, bitmap.Height))
{
using (var graphics = Graphics.FromImage(image))
{
GraphicsExtensions.RasterizeVectorDrawing(graphics, vectorDrawing);
}
for (var x = 0; x < bitmap.Width; x++)
{
for (var y = 0; y < bitmap.Height; y++)
{
var bitmapColor = bitmap.GetPixel(x, y);
var inputColor = image.GetPixel(x, y);
distance += Math.Abs(bitmapColor.R - inputColor.R);
distance += Math.Abs(bitmapColor.G - inputColor.G);
distance += Math.Abs(bitmapColor.B - inputColor.B);
}
}
return(distance);
}
}
public VectorDrawing Mutate(VectorDrawing drawing, int width, int height)
{
var count = drawing.Vectors.Count();
var triangles = drawing.Vectors.ToList();
if (count > 1 && random.Next(2) == 0)
{
triangles.RemoveAt(random.Next(count));
}
else
{
triangles.Add(ColoredTriangleGenetics.Instance.Create(width, height));
}
return(new VectorDrawing()
{
Vectors = triangles
});
}
public VectorDrawing Recombine(VectorDrawing drawingA, VectorDrawing drawingB)
{
var triangles = new List <ColoredTriangle>();
var maxLength = Math.Max(drawingA.Vectors.Count(), drawingB.Vectors.Count());
var minLength = Math.Min(drawingA.Vectors.Count(), drawingB.Vectors.Count());
var aIsBigger = drawingA.Vectors.Count() == maxLength;
for (var i = 0; i < maxLength; i++)
{
if ((i % 2 == 0 && i < minLength) || (i >= minLength && aIsBigger))
{
triangles.Add(drawingA.Vectors.ElementAt(i));
}
else
{
triangles.Add(drawingB.Vectors.ElementAt(i));
}
}
return(new VectorDrawing()
{
Vectors = triangles
});
}
