└── DDA algorithm.java


/DDA algorithm.java:
--------------------------------------------------------------------------------
 1 | import java.awt.*;
 2 | import javax.swing.*;
 3 | 
 4 | public class DDALineDrawing extends JPanel {
 5 | 
 6 |     private int x1, y1, x2, y2;
 7 | 
 8 |     public DDALineDrawing(int x1, int y1, int x2, int y2) {
 9 |         this.x1 = x1;
10 |         this.y1 = y1;
11 |         this.x2 = x2;
12 |         this.y2 = y2;
13 |     }
14 | 
15 |     @Override
16 |     protected void paintComponent(Graphics g) {
17 |         super.paintComponent(g);
18 |         drawLineDDA(g, x1, y1, x2, y2);
19 |     }
20 | 
21 |     private void drawLineDDA(Graphics g, int x1, int y1, int x2, int y2) {
22 |         int dx = x2 - x1;
23 |         int dy = y2 - y1;
24 | 
25 |         int steps = Math.max(Math.abs(dx), Math.abs(dy));
26 | 
27 |         float xIncrement = (float) dx / steps;
28 |         float yIncrement = (float) dy / steps;
29 | 
30 |         float x = x1;
31 |         float y = y1;
32 | 
33 |         for (int i = 0; i <= steps; i++) {
34 |             g.fillRect(Math.round(x), Math.round(y), 1, 1); // Draw pixel
35 |             x += xIncrement;
36 |             y += yIncrement;
37 |         }
38 |     }
39 | 
40 |     public static void main(String[] args) {
41 |         JFrame frame = new JFrame("DDA Line Drawing Algorithm");
42 |         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
43 |         frame.setSize(800, 800);
44 | 
45 |         // Example: Line from (50, 50) to (400, 300)
46 |         DDALineDrawing panel = new DDALineDrawing(50, 50, 400, 300);
47 |         frame.add(panel);
48 | 
49 |         frame.setVisible(true);
50 |     }
51 | }
52 | 


--------------------------------------------------------------------------------