I've been given an assignment for my class to make a program that draws Mandelbrot figures.
We have to basically get the program to draw a bitmap of the result.
Thing is, my CalcMBF
function only outputs 2
as the Mandelbrot number.
I have absolutely no idea why that is. Can anyone help me out?
Here is my code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Mandelbrot_Figure
{
class PreMainClass
{
static void main (String[] args)
{
Form1 screen;
screen = new Form1();
Application.Run(screen);
}
}
public partial class Form1 : Form
{
Label xInputLabel = new Label();
Label yInputLabel = new Label();
Label maxInputLabel = new Label();
Label scaleInputLabel = new Label();
TextBox xInput = new TextBox();
TextBox yInput = new TextBox();
TextBox maxInput = new TextBox();
TextBox scaleInput = new TextBox();
Button okButton = new Button();
double xValue = 0;
double yValue = 0;
double maxValue = 0;
double scaleValue = 0;
double pixVal = 0;
double xCalc = 0;
double yCalc = 0;
double[,,] mArray = new double[400, 400, 1];
public Form1()
{
InitializeComponent();
BackColor = Color.FromArgb(255, 255, 255);
Text = "Mandelbrot Figure";
Size = new System.Drawing.Size(700, 950);
//Messing with the xInput Box and Label
xInput.Location = new Point(50, 50);
xInput.Size = new Size(210, 50);
xInput.Text = ("Please input desired X coordinate.");
Controls.Add(xInput);
xInputLabel.Location = new Point(46, 20);
xInputLabel.Size = new Size(100, 40);
xInputLabel.Text = "Middle X:";
Controls.Add(xInputLabel);
//Messing with the yInput Box and Label
yInput.Location = new Point(320, 50);
yInput.Size = new Size(210, 50);
yInput.Text = ("Please input desired Y coordinate.");
Controls.Add(yInput);
yInputLabel.Location = new Point(316, 20);
yInputLabel.Size = new Size(100, 40);
yInputLabel.Text = "Middle Y:";
Controls.Add(yInputLabel);
//Messing with the maxInput Box and Label
maxInput.Location = new Point(50, 126);
maxInput.Size = new Size(210, 100);
maxInput.Text = ("Please input desired max value.");
Controls.Add(maxInput);
maxInputLabel.Location = new Point(46, 100);
maxInputLabel.Size = new Size(50, 40);
maxInputLabel.Text = "Max:";
Controls.Add(maxInputLabel);
//Messing with the scaleInput Box and Label
scaleInput.Location = new Point(320, 126);
scaleInput.Size = new Size(210, 100);
scaleInput.Text = ("Please input desired scale value.");
Controls.Add(scaleInput);
scaleInputLabel.Location = new Point(316, 100);
scaleInputLabel.Size = new Size(80, 40);
scaleInputLabel.Text = "Scale:";
Controls.Add(scaleInputLabel);
//Messing with the okButton
okButton.Location = new Point(560, 49);
okButton.Size = new Size(100, 100);
okButton.Text = ("Start");
Controls.Add(okButton);
okButton.Click += CalcMandelbrot;
}
//Grabs data and drops it into an array
public void CalcMandelbrot(object sender, EventArgs e)
{
xValue = Convert.ToDouble(xInput.Text);
yValue = Convert.ToDouble(yInput.Text);
maxValue = Convert.ToDouble(maxInput.Text);
scaleValue = Convert.ToDouble(scaleInput.Text);
pixVal = scaleValue * 0.01;
for (double yCounter = 0; yCounter < 400; yCounter++)
{
yCalc = yValue + (200 * pixVal) + (yCounter * pixVal);
for (double xCounter = 0; xCounter < 400; xCounter++)
{
xCalc = xValue - (200 * pixVal) + (xCounter * pixVal);
mArray[Convert.ToInt32(xCounter), Convert.ToInt32(yCounter), 0] = CalcMBF(xCalc, yCalc, maxValue);
Console.WriteLine(xCounter + " " + yCounter + " " + " " + xCalc + " " + yCalc + " " + CalcMBF(xCalc, yCalc, maxValue));
}
}
}
public double CalcMBF(double aOut, double bOut, double maxValue)
{
double aWork = aOut;
double bWork = bOut;
double maxWork = maxValue;
double distanceXY = 0;
int mandelbrotNum = 0;
for (int loopCounter = 1; loopCounter < maxWork; loopCounter++)
{
if (distanceXY <= 2)
{
distanceXY = Math.Sqrt(Math.Pow((aWork), 2) + Math.Pow((bWork), 2));
mandelbrotNum = loopCounter;
aWork = (aWork * aWork) - (bWork * bWork) + xCalc;
bWork = (2 * aWork * bWork) + yCalc;
}
else
{
aWork = 0;
bWork = 0;
break;
}
}
return mandelbrotNum;
}
}
}
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