private void Button_Click_1(object sender, RoutedEventArgs e)
{
var stopWatch = new Stopwatch();
stopWatch.Start();
var fractalCreating = new CustomBitmap();
var argumentsParser = new InputArguments(WidthBox.Text, HeightBox.Text, CoordinatesBox.Text, ThreadsNumBox.Text);
var drewObject = fractalCreating.DrawMandelbrot(argumentsParser);
drewObject.Bitmap.Save(ImageNameBox.Text, ImageFormat.Jpeg);
Image.Source = LoadBitmap(drewObject.Bitmap);
stopWatch.Stop();
AllTimeBox.Text = stopWatch.Elapsed.ToString();
RenderTimeBox.Text = drewObject.TimeForRender.ToString();
}
public ImageAndTime DrawMandelbrot(InputArguments arguments)
{
var palette = GenerateColorPalette();
var img = new CustomBitmap(arguments.Width, arguments.Height);
// Offset in real numbers to which bits will be moved
var realScale = (Math.Abs(arguments.Coordinates[0]) + Math.Abs(arguments.Coordinates[1])) / arguments.Width;
// Offset in complex numbers to which bits will be moved
var imaginaryScale = (Math.Abs(arguments.Coordinates[2]) + Math.Abs(arguments.Coordinates[3])) / arguments.Height;
var stopwatch = new Stopwatch();
stopwatch.Start();
var rectangle = new Rectangle(0, 0, img.Bitmap.Width, img.Bitmap.Height);
var data = img.Bitmap.LockBits(rectangle, ImageLockMode.ReadWrite, PixelFormat.Format48bppRgb);
var height = arguments.Height;
var width = arguments.Width;
var coordinatesF = arguments.Coordinates[0];
var coordinatesS = arguments.Coordinates[2];
var numberOfThreads = arguments.Threads;
Parallel.For(0, width, new ParallelOptions { MaxDegreeOfParallelism = numberOfThreads }, x =>
{
for (var y = 0; y < height; y++)
{
//scaling of complex number
var c = new Complex(x * realScale + coordinatesF, y * imaginaryScale + coordinatesS);
var z = c;
foreach (var t in palette)
{
if (z.Magnitude >= 2.0)
{
img.SetPixel(x, y, t,data);
break;
}
z = c + Complex.Pow(z, 2); // Z = Zlast^2 + C
}
}
});
img.Bitmap.UnlockBits(data);
stopwatch.Stop();
Console.WriteLine(stopwatch.Elapsed);
return new ImageAndTime{Bitmap=img.Bitmap,TimeForRender = stopwatch.Elapsed};
}
