public Form1()
{
InitializeComponent();
turn_angle = 0;
start_angle = 0;
rules = new Dictionary <char, string>();
start_node = new Frac_point(new PointF(0, 0));
max_p = new PointF(0, 0);
min_p = new PointF(0, 0);
depth = 2;
rand_turn = false;
}
private void numericUpDown1_ValueChanged(object sender, EventArgs e)
{
depth = (int)numericUpDown1.Value;
if (fractal == null)
{
return;
}
start_node = new Frac_point(new PointF(0, 0));
max_p = new PointF(0, 0);
min_p = new PointF(0, 0);
apply_rules();
create_fractal();
pictureBox1.Invalidate();
}
private void button1_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() != DialogResult.OK)
{
return;
}
string filename = openFileDialog1.FileName;
string fileText = System.IO.File.ReadAllText(filename);
fileText = fileText.Replace(" ", string.Empty);
rules.Clear();
start_node = new Frac_point(new PointF(0, 0));
max_p = new PointF(0, 0);
min_p = new PointF(0, 0);
start = "";
parse_input(fileText);
apply_rules();
create_fractal();
pictureBox1.Invalidate();
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
float w = max_p.X - min_p.X;
float h = max_p.Y - min_p.Y;
var scale = Math.Min((float)(pictureBox1.Width - 75) / w, (float)(pictureBox1.Height - 75) / h);
if (w == 0 || h == 0)
{
scale = 1;
}
// Перемещаем (0, 0) в центр окна и устанавливаем масштаб
e.Graphics.ScaleTransform(scale, scale);
e.Graphics.TranslateTransform(-min_p.X + 50 / scale, -min_p.Y + 50 / scale);
Color c1 = Color.DeepPink;
Color c2 = Color.DeepSkyBlue;
float sw = 5f;
float fw = 0.1f;
int[] R = Interpolate(0, c1.R, max_lvl, c2.R);
int[] G = Interpolate(0, c1.G, max_lvl, c2.G);
int[] B = Interpolate(0, c1.B, max_lvl, c2.B);
float[] W = FInterpolate(0, sw, max_lvl, fw);
Stack <Frac_point> s = new Stack <Frac_point>();
s.Push(start_node);
while (s.Count > 0)
{
Frac_point cur = s.Pop();
foreach (var fp in cur.fpoints)
{
e.Graphics.DrawLine(new Pen(Color.FromArgb(R[cur.level], G[cur.level], B[cur.level]), W[cur.level]), cur.p, fp.p);
s.Push(fp);
}
}
}
private void create_fractal()
{
Frac_point cur = start_node;
Stack <Tuple <Frac_point, double> > st = new Stack <Tuple <Frac_point, double> >();
int lvl = 0;
double angle = start_angle;
foreach (char c in fractal)
{
if (c == '+')
{
if (rand_turn)
{
angle += turn_angle + (rand_ang.Next(-20, 20) * Math.PI / 180);
}
else
{
angle += turn_angle;
}
++lvl;
}
else if (c == '-')
{
if (rand_turn)
{
angle -= turn_angle + (rand_ang.Next(-20, 20) * Math.PI / 180);
}
else
{
angle -= turn_angle;
}
++lvl;
}
else if (c == '[')
{
st.Push(new Tuple <Frac_point, double>(cur, angle));
}
else if (c == ']')
{
var t = st.Pop();
lvl = t.Item1.level;
cur = t.Item1;
angle = t.Item2;
}
else if (c == '@')
{
rand_turn = true;
}
else if (c == 'F')
{
max_lvl = Math.Max(max_lvl, lvl);
PointF next = new PointF(cur.p.X + (float)Math.Cos(angle) * 10, cur.p.Y + (float)Math.Sin(angle) * 10);
min_p.X = Math.Min(min_p.X, next.X);
min_p.Y = Math.Min(min_p.Y, next.Y);
max_p.X = Math.Max(max_p.X, next.X);
max_p.Y = Math.Max(max_p.Y, next.Y);
Frac_point t = new Frac_point(next);
t.level = lvl;
cur.fpoints.Add(t);
cur = t;
}
}
}