/// <summary>
/// Draws Circle Fractal
/// </summary>
/// <param name="flag"> refresh image on pictureBox?</param>
private void DrawCircleFractal(bool flag = true)
{
double width = this.picCanvas.Width;
double height = this.picCanvas.Height;
double maxLen = (double)Math.Min(picCanvas.Width, picCanvas.Height) / 2.1;
Point midPoint = new Point(width / 2, height / 2);
lastImage = new Bitmap((int)(width * Fractal.imageQualityFactor), (int)(height * Fractal.imageQualityFactor));
Console.WriteLine(iterationsUpDown.Value);
CircleFractal fractal = new CircleFractal(maxLen, startColor, endColor, (int)iterationsUpDown.Value);
fractal.Draw(lastImage, midPoint);
if (flag)
{
(picCanvas.Image)?.Dispose();
picCanvas.Image = lastImage;
}
}
/// <summary>
/// method for drawing Circle fractal on image
/// </summary>
/// <param name="image">image to draw on</param>
/// <param name="A">center Point</param>
/// <param name="E">null</param>
public override void Draw(Bitmap image, Point pt1, Point pt2 = null, int helper = 0)
{
if (CurDepth == MaxDepth)
{
return;
}
Pen gradientPen = new Pen(Fractal.GetGradientColor(StartColor, EndColor, CurDepth, MaxDepth), startThickness);
double curRadius = StartLen / (Math.Pow(3, CurDepth));
Point[] arr = new Point[7];
arr[0] = pt1;
double distFromCenter = curRadius * 2 / 3;
for (int i = -1; i < 6; ++i)
{
Point rotated = new Point(-distFromCenter, 0);
rotated = Point.Rotate(rotated, Math.PI / 6 + Math.PI * i / 3);
Point diag = new Point(-curRadius / 3 * Math.Sqrt(2), 0);
diag = Point.Rotate(diag, Math.PI / 4);
arr[i + 1] = rotated + pt1;
//drawing circle, that is in our center
if (i == -1)
{
arr[0] = pt1;
}
Point temp = arr[i + 1] + diag;
using (var graphics = Graphics.FromImage(image))
{
graphics.DrawEllipse(gradientPen,
new RectangleF((float)(temp.X - offsetPoint.X) * imageQualityFactor, (float)(temp.Y - offsetPoint.Y) * imageQualityFactor, (float)curRadius / 3 * (float)2 * imageQualityFactor, (float)curRadius / 3 * (float)2 * imageQualityFactor));
}
CircleFractal fractal = new CircleFractal(StartLen, StartColor, EndColor, MaxDepth, CurDepth + 1);
fractal.Draw(image, arr[i + 1]);
}
}