void mandelPanel_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left) //zoom in
{
//add current statee to list
MandelState state = new MandelState(middle, scale, maxLoop);
stateList.Add(state);
//calculate new middle + zoom
middle = mandelImage.pixelToMandelPoint(e.X, e.Y);
scale /= 2;
}
else if (e.Button == MouseButtons.Right) //zoom out
{
if (stateList.Count == 0)
{
return; //don't refresh when there is no previous state
}
// loads the previous settings in textfields
scale = stateList.Last().scale;
middle = stateList.Last().middle;
maxLoop = stateList.Last().maxLoop;
stateList.Remove(stateList.Last());
}
refreshImage();
fillTextFields();
}
List <MandelColor> colorList = new List <MandelColor>(); // list for all possible colorfilters
public MandelForm()
{
InitializeComponent();
//add color filters
colorList.Add(new RandomColor());
colorList.Add(new BlueAlpha());
colorList.Add(new RedGreenBlue());
colorList.Add(new Fire());
colorList.Add(new Green());
colorList.Add(new BlackWhite());
foreach (MandelColor color in colorList)
{
comboBoxColors.Items.Add(color.ToString());
}
comboBoxColors.SelectedItem = comboBoxColors.Items[0];
//initialize variables
middle = new MandelPoint(0, 0);
refreshImage();
fillTextFields();
//register event handlers
mandelPanel.Paint += mandelPanel_Paint;
mandelPanel.MouseClick += mandelPanel_MouseClick;
mandelPanel.MouseMove += mandelPanel_MouseMove;
comboBoxColors.SelectedIndexChanged += comboBoxColors_SelectedIndexChanged;
}
void mandelPanel_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left) //zoom in
{
//add current statee to list
MandelState state = new MandelState(middle, scale, maxLoop);
stateList.Add(state);
//calculate new middle + zoom
middle = mandelImage.pixelToMandelPoint(e.X, e.Y);
scale /= 2;
}
else if (e.Button == MouseButtons.Right) //zoom out
{
if (stateList.Count == 0)
return; //don't refresh when there is no previous state
// loads the previous settings in textfields
scale = stateList.Last().scale;
middle = stateList.Last().middle;
maxLoop = stateList.Last().maxLoop;
stateList.Remove(stateList.Last());
}
refreshImage();
fillTextFields();
}
List<MandelColor> colorList = new List<MandelColor>(); // list for all possible colorfilters
public MandelForm()
{
InitializeComponent();
//add color filters
colorList.Add(new RandomColor());
colorList.Add(new BlueAlpha());
colorList.Add(new RedGreenBlue());
colorList.Add(new Fire());
colorList.Add(new Green());
colorList.Add(new BlackWhite());
foreach (MandelColor color in colorList)
comboBoxColors.Items.Add(color.ToString());
comboBoxColors.SelectedItem = comboBoxColors.Items[0];
//initialize variables
middle = new MandelPoint(0, 0);
refreshImage();
fillTextFields();
//register event handlers
mandelPanel.Paint += mandelPanel_Paint;
mandelPanel.MouseClick += mandelPanel_MouseClick;
mandelPanel.MouseMove += mandelPanel_MouseMove;
comboBoxColors.SelectedIndexChanged += comboBoxColors_SelectedIndexChanged;
}
void mandelPanel_MouseMove(object sender, MouseEventArgs e)
{
// display current position in graph
MandelPoint mandelPoint = mandelImage.pixelToMandelPoint(e.X, e.Y);
int n = mandelImage.mandelPointToNumber(mandelPoint);
this.Text = String.Format("({0}, {1}): {2}", mandelPoint.a, mandelPoint.b, n);
}
int maxLoop; //number of times to try calculating the mandel number
public MandelImage(int width, int height, MandelPoint middle, double scale, int maxLoop = 100)
{
// properties of the image
this.width = width;
this.height = height;
this.middle = middle;
this.scale = scale;
this.maxLoop = maxLoop;
}
int maxLoop; //number of times to try calculating the mandel number
public MandelImage(int width, int height, MandelPoint middle, double scale, int maxLoop = 100)
{
// properties of the image
this.width = width;
this.height = height;
this.middle = middle;
this.scale = scale;
this.maxLoop = maxLoop;
}
private void buttonSpace_Click(object sender, EventArgs e)
{
scale = 3.0517578125E-07;
maxLoop = 1000;
middle = new MandelPoint(-1.6320947265625, -4.7607421875E-05);
comboBoxColors.SelectedItem = comboBoxColors.Items[1];
fillTextFields();
refreshImage();
}
// methods for examples
private void buttonTeeth_Click(object sender, EventArgs e)
{
scale = 6.103515625E-07;
maxLoop = 1000;
middle = new MandelPoint(-1.63213623046875, -3.662109375E-06);
comboBoxColors.SelectedItem = comboBoxColors.Items[0];
fillTextFields();
refreshImage();
}
//calculate the mandel number for a point 'pt'
public int calculate(MandelPoint point)
{
MandelPoint basePoint = new MandelPoint(0, 0);
for (int i = 0; i < maxLoop; i++)
{
basePoint = transform(basePoint, point.a, point.b);
if (!basePoint.IsInBounds())
return i + 1;
}
return INVALID;
}
//calculate the mandel number for a point 'pt'
public int calculate(MandelPoint point)
{
MandelPoint basePoint = new MandelPoint(0, 0);
for (int i = 0; i < maxLoop; i++)
{
basePoint = transform(basePoint, point.a, point.b);
if (!basePoint.IsInBounds())
{
return(i + 1);
}
}
return(INVALID);
}
// method for adjusting settings when clicking 'refresh'
private void buttonRefresh_Click(object sender, EventArgs e)
{
try
{
scale = double.Parse(textBoxScale.Text);
maxLoop = int.Parse(textBoxMax.Text);
middle = new MandelPoint(double.Parse(textBoxMiddleX.Text), double.Parse(textBoxMiddleY.Text));
refreshImage();
}
catch (Exception)
{
MessageBox.Show("Invalid format used!", "Error"); // in case input is not a number
}
}
private void buttonSpace_Click(object sender, EventArgs e)
{
scale = 3.0517578125E-07;
maxLoop = 1000;
middle = new MandelPoint(-1.6320947265625, -4.7607421875E-05);
comboBoxColors.SelectedItem = comboBoxColors.Items[1];
fillTextFields();
refreshImage();
}
// the state of the mandelimage with 3 variables
public MandelState(MandelPoint middle, double scale, int maxLoop)
{
this.middle = middle;
this.scale = scale;
this.maxLoop = maxLoop;
}
//transform a mandel point: f(a,b) = (a*a - b*b + x, 2*a*b + y)
private static MandelPoint transform(MandelPoint basePoint, double x, double y)
{
return new MandelPoint(basePoint.a * basePoint.a - basePoint.b * basePoint.b + x, 2 * basePoint.a * basePoint.b + y);
}
//get the mandel number for a specified point in the mandelbrot image
public int mandelPointToNumber(MandelPoint point)
{
MandelNumber mandelNumber = new MandelNumber(maxLoop);
return(mandelNumber.calculate(point));
}
//transform a mandel point: f(a,b) = (a*a - b*b + x, 2*a*b + y)
private static MandelPoint transform(MandelPoint basePoint, double x, double y)
{
return(new MandelPoint(basePoint.a * basePoint.a - basePoint.b * basePoint.b + x, 2 * basePoint.a * basePoint.b + y));
}
// the state of the mandelimage with 3 variables
public MandelState(MandelPoint middle, double scale, int maxLoop)
{
this.middle = middle;
this.scale = scale;
this.maxLoop = maxLoop;
}
// methods for examples
private void buttonTeeth_Click(object sender, EventArgs e)
{
scale = 6.103515625E-07;
maxLoop = 1000;
middle = new MandelPoint(-1.63213623046875, -3.662109375E-06);
comboBoxColors.SelectedItem = comboBoxColors.Items[0];
fillTextFields();
refreshImage();
}
//get the mandel number for a specified point in the mandelbrot image
public int mandelPointToNumber(MandelPoint point)
{
MandelNumber mandelNumber = new MandelNumber(maxLoop);
return mandelNumber.calculate(point);
}
// method for adjusting settings when clicking 'refresh'
private void buttonRefresh_Click(object sender, EventArgs e)
{
try
{
scale = double.Parse(textBoxScale.Text);
maxLoop = int.Parse(textBoxMax.Text);
middle = new MandelPoint(double.Parse(textBoxMiddleX.Text), double.Parse(textBoxMiddleY.Text));
refreshImage();
}
catch (Exception)
{
MessageBox.Show("Invalid format used!", "Error"); // in case input is not a number
}
}
