Working mandelbrot function

4 files changed, 70 insertions, 10 deletions

diff --git a/Week11 Mandelbrot/nbproject/project.properties b/Week11 Mandelbrot/nbproject/project.properties
index 0c027f6..c0f18c5 100644
--- a/Week11 Mandelbrot/nbproject/project.properties
+++ b/Week11 Mandelbrot/nbproject/project.properties
@@ -54,7 +54,7 @@ javadoc.splitindex=true
 javadoc.use=true
 javadoc.version=false
 javadoc.windowtitle=
-main.class=
+main.class=fractals.Mandelbrot
 manifest.file=manifest.mf
 meta.inf.dir=${src.dir}/META-INF
 mkdist.disabled=false
diff --git a/Week11 Mandelbrot/src/fractals/GridFiller.java b/Week11 Mandelbrot/src/fractals/GridFiller.java
index 1fbb676..73b422e 100644
--- a/Week11 Mandelbrot/src/fractals/GridFiller.java
+++ b/Week11 Mandelbrot/src/fractals/GridFiller.java
@@ -20,7 +20,7 @@ public class GridFiller {
      * @param grid to be filled

      */

     public GridFiller (Grid grid) {

-    	colorTable = new ColorTable (20); // some random value, needs to be adjusted

+    	colorTable = new ColorTable (30); // some random value, needs to be adjusted

         this.grid = grid;

     }

 

diff --git a/Week11 Mandelbrot/src/fractals/MainWindow.java b/Week11 Mandelbrot/src/fractals/MainWindow.java
index 5c56b7f..7e72b30 100644
--- a/Week11 Mandelbrot/src/fractals/MainWindow.java
+++ b/Week11 Mandelbrot/src/fractals/MainWindow.java
@@ -2,9 +2,13 @@ package fractals;
 

 

 

+import java.awt.BorderLayout;

+import java.awt.FlowLayout;

 import java.awt.Insets;

+import javax.swing.JButton;

 

 import javax.swing.JFrame;

+import javax.swing.JPanel;

 

 /**

  * 

@@ -18,7 +22,7 @@ import javax.swing.JFrame;
  */

 public class MainWindow  {

     // the size of the window

-    public static final int WIDTH = 650, HEIGHT = 650;

+    public static final int WIDTH = 500, HEIGHT = 500;

     

     // The grip panel

     private GridView grid;

@@ -26,16 +30,21 @@ public class MainWindow  {
     public MainWindow () {

     	JFrame mainFrame = new JFrame ("Mandelbrot");

         

-    	mainFrame.setSize (WIDTH, HEIGHT);                

+        mainFrame.setLayout(new BorderLayout());

+    	mainFrame.setSize (WIDTH, HEIGHT);

     	mainFrame.setLocationRelativeTo(null);

     	mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

     	mainFrame.setResizable(false);

     	mainFrame.setVisible(true);

     	

-        Insets insets = mainFrame.getInsets ();

-        grid = new GridView (WIDTH - insets.left - insets.right, HEIGHT - insets.top - insets.bottom);

+        Insets insets = mainFrame.getInsets();

+        grid = new GridView(WIDTH - insets.left - insets.right, HEIGHT - insets.top - insets.bottom);

+        mainFrame.add(grid, BorderLayout.CENTER);

+        

+        JPanel panel = new JPanel(new FlowLayout());

+        panel.add(new JButton("test"));

+        mainFrame.add(panel, BorderLayout.PAGE_END);

         

-        mainFrame.add(grid);

         mainFrame.pack();

     }

     

diff --git a/Week11 Mandelbrot/src/fractals/Mandelbrot.java b/Week11 Mandelbrot/src/fractals/Mandelbrot.java
index fa68372..74b522e 100644
--- a/Week11 Mandelbrot/src/fractals/Mandelbrot.java
+++ b/Week11 Mandelbrot/src/fractals/Mandelbrot.java
@@ -5,12 +5,63 @@ package fractals;
  * @author Sjaak Smetsers

  * @version 1.0, 14-03-2013

  */

-public class Mandelbrot 

-{

-    public static void main(String args[]) {    	       

+public class Mandelbrot {

+    

+    public final static int MAX_MANDEL_NUMBER = 100; // infinity will be this + 1

+    

+    public Mandelbrot() {

         MainWindow fractal_win = new MainWindow ();

         GridFiller filler = new GridFiller (fractal_win.getGrid());

         filler.fill();

+        

+        System.out.println(Integer.toString(mandelNumber(0,0)));

+    }

+    

+    public static void main(String args[]) {    	       

+        Mandelbrot mandelbrot = new Mandelbrot();

+    }

+    

+    public static int mandelNumber(double x, double y) {

+        double x_n = x, y_n = y;

+        int n = 0;

+        

+        while (x_n * x_n + y_n * y_n <= 4 && n <= MAX_MANDEL_NUMBER) {

+            double new_x_n = x_n * x_n - y_n * y_n + x;

+            y_n = 2 * x_n * y_n + y;

+            x_n = new_x_n;

+            n++;

+        }

+        

+        return n;

+    }

+    

+    private class GridFiller {

+        private Grid grid;              // the grid to be filled

+        

+        /**

+         * The constructor

+         * @param grid to be filled

+         */

+        public GridFiller (Grid grid) {

+            this.grid = grid;

+        }

+        

+        private final double MIN_X = -2.5, MAX_X = 2.5, MIN_Y = -2.5, MAX_Y = 2.5;

+

+        /**

+         * fills the whole grid with some arbitrarily chosen color

+         * 

+         */

+        public void fill () {

+            int grid_w = grid.getWidth(), grid_h = grid.getHeight();

+            for (float i = 0; i < grid_w; i++) {

+                for (float j = 0; j < grid_h; j++) {

+                    int grayscale = mandelNumber(MIN_X + (i / grid_w) * (MAX_X - MIN_X), MIN_Y + (j / grid_h) * (MAX_Y - MIN_Y)) * 256 / MAX_MANDEL_NUMBER;

+                    int[] color = {grayscale, grayscale, grayscale};

+                    grid.setPixel((int) i, (int) j, color);

+                }               

+            }

+        }

     }

 

 }
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