public void RenderImage()
{
try
{
RenderProgress.Minimum = 0;
RenderProgress.Maximum = 625;
XMaxLabel.Text = Convert.ToString("xMax: " + this.MaximumXValue);
YMaxLabel.Text = Convert.ToString("yMax: " + this.MaximumYValue);
XMinLabel.Text = Convert.ToString("xMin: " + this.MinimumXValue);
YMinLabel.Text = Convert.ToString("yMin: " + this.MinimumYValue);
if (Convert.ToInt32(this.IterationsTextbox.Text) > 0)
{
this.MaximumIterations = Convert.ToInt32(IterationsTextbox.Text);
}
else
{
this.IterationsTextbox.Text = "50";
this.MaximumIterations = 50;
}
int PixelStep = 1;
bool grey = Greyscale.Checked ? true : false;
GraphicsObject.Clear(Color.Black);
int height = (int)GraphicsObject.VisibleClipBounds.Size.Height;
int LastIteration = -1;
Color Colour;
Color LastColour = Color.Red;
ComplexNumber BottomLeft = new ComplexNumber(MinimumXValue, MinimumYValue);
ComplexNumber TopRight = new ComplexNumber(MaximumXValue, MaximumYValue);
Converter = new Conversions(GraphicsObject, BottomLeft, TopRight);
IsConverterInitialized = true;
ComplexNumber pixel_step = new ComplexNumber(PixelStep, PixelStep);
ComplexNumber Step = Converter.GetDeltaMathsCoord(pixel_step);
Stopwatch RenderTimer = new Stopwatch();
RenderTimer.Start();
int ZExponent = Convert.ToInt32(ZExponentBox.Value);
int CExponent = Convert.ToInt32(CExponentBox.Value);
int line_number = 0;
int yPixel = FractalCanvas.Height - 1;
for (double YRange = MinimumYValue; YRange < MaximumYValue; YRange += Step.Imaginary)
{
int xPixel = 0;
for (double XRange = MinimumXValue; XRange < MaximumXValue; XRange += Step.Real)
{
ComplexNumber CComplex = new ComplexNumber(XRange, YRange);
ComplexNumber ZComplex = new ComplexNumber(0.0, 0.0);
Tuple <int, double> IterationsNormalizedTuple = Rendering.GetEscapeIterations(ZExponent, CExponent, ZComplex, CComplex, MaximumIterations);
int Iterations = IterationsNormalizedTuple.Item1;
double Normalized = IterationsNormalizedTuple.Item2;
if (Iterations < MaximumIterations)
{
Colour = Rendering.GetColourForPixel(Iterations, MaximumIterations, LastIteration, LastColour, Greyscale.Checked, BlackAndWhite.Checked, Normalized);
LastColour = Colour;
LastIteration = Iterations;
if ((xPixel < FractalCanvas.Width) && (yPixel >= 0))
{
FractalCanvas.SetPixel(xPixel, yPixel, Colour);
}
}
xPixel += PixelStep;
}
yPixel -= PixelStep;
line_number++;
if ((line_number % 120) == 0)
{
Refresh();
}
if ((line_number % 240) == 0)
{
try
{
RenderProgress.Value = line_number;
}
catch (Exception)
{
RenderProgress.Value = 0;
}
}
}
RenderProgress.Value = line_number;
Refresh();
UndoData.Push(new MandelbrotData(MaximumIterations, ZoomScale, grey, BlackAndWhite.Checked, MinimumXValue, MaximumXValue, MinimumYValue, MaximumYValue, ZExponent, CExponent));
RenderTimer.Stop();
TimeElapsedLabel.Text = "Elapsed: " + RenderTimer.Elapsed.Seconds + "." + RenderTimer.Elapsed.Milliseconds + " seconds.";
RenderProgress.Value = 0;
}
catch (Exception e2)
{
MessageBox.Show("Exception Trapped: " + e2.Message, "Error");
}
}
public Bitmap GenerateNewImage(double yMin, double yMax, double xMin, double xMax)
{
Bitmap newImage = new Bitmap(ClientWidth,
ClientHeight,
System.Drawing.Imaging.PixelFormat.Format24bppRgb
);
if (Convert.ToInt32(this.IterationsTextbox.Text) > 0)
{
this.MaximumIterations = Convert.ToInt32(IterationsTextbox.Text);
}
else
{
this.IterationsTextbox.Text = "50";
this.MaximumIterations = 50;
}
int xyPixelStep = 1;
bool grey = Greyscale.Checked ? true : false;
GraphicsObject.Clear(Color.Black);
int height = (int)GraphicsObject.VisibleClipBounds.Size.Height;
int kLast = -1;
Color color;
Color colorLast = Color.Red;
ComplexNumber screenBottomLeft = new ComplexNumber(xMin, yMin);
ComplexNumber screenTopRight = new ComplexNumber(xMax, yMax);
Converter = new Conversions(GraphicsObject, screenBottomLeft, screenTopRight);
IsConverterInitialized = true;
ComplexNumber pixelStep = new ComplexNumber(xyPixelStep, xyPixelStep);
ComplexNumber xyStep = Converter.GetDeltaMathsCoord(pixelStep);
int ZExponent = Convert.ToInt32(ZExponentBox.Text);
int CExponent = Convert.ToInt32(CExponentBox.Text);
int yPix = FractalCanvas.Height - 1;
for (double y = yMin; y < yMax; y += xyStep.Imaginary)
{
int xPix = 0;
for (double x = xMin; x < xMax; x += xyStep.Real)
{
ComplexNumber CComplex = new ComplexNumber(x, y);
ComplexNumber ZComplex = new ComplexNumber(0.0, 0.0);
Tuple <int, double> IterationsNormalizedTuple = Rendering.GetEscapeIterations(ZExponent, CExponent, ZComplex, CComplex, MaximumIterations);
int Iterations = IterationsNormalizedTuple.Item1;
double Normalized = IterationsNormalizedTuple.Item2;
if (Iterations < MaximumIterations)
{
color = Rendering.GetColourForPixel(Iterations, MaximumIterations, kLast, colorLast, Greyscale.Checked, BlackAndWhite.Checked, Normalized);
colorLast = color;
kLast = Iterations;
if ((xPix < newImage.Width) && (yPix >= 0))
{
newImage.SetPixel(xPix, yPix, color);
}
}
xPix += xyPixelStep;
}
yPix -= xyPixelStep;
}
IterationsTextbox.Text = Convert.ToString(Math.Round(10 + IterationsScaleFactor + Convert.ToInt32(IterationsTextbox.Text)));
IterationsScaleFactor += 2;
return(newImage);
}
