コード例 #1
0
        // calculate all points // djm original mandelbrot()
        private void Mandelbrot()
        {
            int x, y;
            float h, b, alt = 0.0f;

            action = false;
            // Cursor = Cursors.WaitCursor; //jh not needed // setCursor(c1); // djm original java
            Text = "C3375905";
            message.Text = "Mandelbrot-Set will be produced - please wait..."; // showStatus("Mandelbrot-Set will be produced - please wait..."); // djm original java

            for (x = 0; x < x1; x += 2) // x less than width - draw lines from left to right
                for (y = 0; y < y1; y++) // draw 1 pixel at a time
                {
                    h = Pointcolour(xstart + xzoom * (double)x, ystart + yzoom * (double)y); // color value
                    if (h != alt)
                    {
                        b = 1.0f - h * h; // brightness

                        var customColour = new HSBColor(h * ScaleUp, 0.8f * ScaleUp, b * ScaleUp); // hsb colour
                        var convertedColour = HSBColor.FromHSB(customColour); // convert hsb to rgb then make a Java Color

                        // Color col = Color.getHSBColor(h,0.8f,b); // djm not needed
                        // int red = col.getRed(); // djm not needed
                        // int green = col.getGreen(); // djm not needed
                        // int blue = col.getBlue(); // djm not needed
                        pen = new Pen(convertedColour);
                        alt = h;
                    }
                    g1.DrawLine(pen, x, y, x + 1, y);
                }

            // Cursor = Cursors.Cross; //jh not needed // setCursor(c1); // djm original java
            message.Text = "Mandelbrot-Set ready - please select zoom area with pressed mouse."; // showStatus("Mandelbrot-Set ready - please select zoom area with pressed mouse."); // djm original java
            action = true;
        }
コード例 #2
0
ファイル: HSB.cs プロジェクト: joehoughton/fractal-conversion
        public static Color FromHSB(HSBColor hsbColor)
        {
            float r = hsbColor.b;
            float g = hsbColor.b;
            float b = hsbColor.b;
            if (hsbColor.s != 0)
            {
                float max = hsbColor.b;
                float dif = hsbColor.b * hsbColor.s / 255f;
                float min = hsbColor.b - dif;

                float h = hsbColor.h * 360f / 255f;

                if (h < 60f)
                {
                    r = max;
                    g = h * dif / 60f + min;
                    b = min;
                }
                else if (h < 120f)
                {
                    r = -(h - 120f) * dif / 60f + min;
                    g = max;
                    b = min;
                }
                else if (h < 180f)
                {
                    r = min;
                    g = max;
                    b = (h - 120f) * dif / 60f + min;
                }
                else if (h < 240f)
                {
                    r = min;
                    g = -(h - 240f) * dif / 60f + min;
                    b = max;
                }
                else if (h < 300f)
                {
                    r = (h - 240f) * dif / 60f + min;
                    g = min;
                    b = max;
                }
                else if (h <= 360f)
                {
                    r = max;
                    g = min;
                    b = -(h - 360f) * dif / 60 + min;
                }
                else
                {
                    r = 0;
                    g = 0;
                    b = 0;
                }
            }

            return Color.FromArgb
                (
                    hsbColor.a,
                    (int)Math.Round(Math.Min(Math.Max(r, 0), 255)),
                    (int)Math.Round(Math.Min(Math.Max(g, 0), 255)),
                    (int)Math.Round(Math.Min(Math.Max(b, 0), 255))
                    );
        }