Java2D: Increase the line width

by

You should use setStroke to set a stroke of the Graphics2D object.

The example at http://www.java2s.com gives you some code examples.

The following code produces the image below:

import java.awt.*;
import java.awt.geom.Line2D;
import javax.swing.*;

public class FrameTest {
    public static void main(String[] args) {
        JFrame jf = new JFrame("Demo");
        Container cp = jf.getContentPane();
        cp.add(new JComponent() {
            public void paintComponent(Graphics g) {
                Graphics2D g2 = (Graphics2D) g;
                g2.setStroke(new BasicStroke(10));
                g2.draw(new Line2D.Float(30, 20, 80, 90));
            }
        });
        jf.setSize(300, 200);
        jf.setVisible(true);
    }
}

enter image description here

(Note that the setStroke method is not available in the Graphics object. You have to cast it to a Graphics2D object.)

This post has been rewritten as an article here.

More Related Contents:

  1. setOpaque(true/false); Java
  2. Center Align a rectangle in Java Frame/Panel [closed]
  3. Draw a line in a JPanel with button click in Java
  4. Drawing a rectangle that won’t disappear in next paint
  5. Drawing Multiple JComponents to a Frame
  6. Draw with lines in Java
  7. Printing a JFrame and its components
  8. How to setSize of image using RescaleOp
  9. Graphics rendering in title bar
  10. Java2D Graphics anti-aliased
  11. How to resize text in java
  12. calling a java method to draw graphics
  13. Why does calling dispose() on Graphics object cause JPanel to not render any components
  14. Create the square, rectangle, triangle of java in jframe [closed]
  15. Java: How to draw non-scrolling overlay over ScrollPane Viewport?
  16. How do i align this text correctly?
  17. Saving a Java 2d graphics image as .png file
  18. How to serialize Java 2D Shape objects as XML?
  19. Java make a directed line and make it move
  20. Pacman open/close mouth animation
  21. Secure Desktop Mode effect for java application
  22. Drawing a Component to BufferedImage causes display corruption
  23. How do I make a rectangle move across the screen with key bindings?
  24. Draggable rectangles in Java 2D [duplicate]
  25. Java 2D Drawing Optimal Performance
  26. Java AWT/SWT/Swing: How to plan a GUI?
  27. Creating a draw rectangle (filled with black color) function in Java for a grid
  28. about drawing a Polygon in java
  29. Clicking on a drawn object
  30. Swing repaint() doesn’t work in loop or thread

Leave a Comment