java-2d

I want to increase the Line2D width. I could not find any method to do that. Do I need to actually make a small rectangle for this purpose? 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

Possible Duplicate: how to drag object I need to draw some UML components (classes, packages etc) using Java 2D and then be able to drag them around. Is there a way to do this? I mean, to make a shape "draggable"? JHotDraw was designed as "a Java GUI framework for technical and structured Graphics." The linked JHotDraw Pattern Language: JHotDraw Domain Overview illustrates how to customize drawing editors. The sample org.jhotdraw.samples.draw.Main is a reasonable starting point, and JModeller is a simple UML editor built using the framework. Are you forced to swing? If not you might have look

I want to draw a directed arrow line through Java. At present, I am using java.awt.Line2D.Double class to draw a line g2.setStroke(new BasicStroke(2.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL)); // g2 is an instance of Graphics2D g2.draw(new Line2D.Double(x1,y1,x2,y2)); But only the line appears and no directed arrow appears. BasicStroke.Join_BEVEL is used to draw a directed arrow. It is applied when two line segments meet. The line I am drawing meets the border of a rectangle but no directed arrow is drawn. Only a simple line is drawn. Is there anything I am missing? The bevel is drawn

I'm having performance oddities with Java2D. I know of the sun.java2d.opengl VM parameter to enable 3D acceleration for 2D, but even using that has some weird issues. Here are results of tests I ran: Drawing a 25x18 map with 32x32 pixel tiles on a JComponent Image 1 = .bmp format, Image 2 = A .png format Without -Dsun.java2d.opengl=true 120 FPS using .BMP image 1 13 FPS using .PNG image 2 With -Dsun.java2d.opengl=true 12 FPS using .BMP image 1 700 FPS using .PNG image 2 Without acceleration, I'm assuming some kind of transformation is taking place with every drawImage() I do in software, and

I want to make the pacman open/close mouth animation using the easiest method. Here is my recent code: The problem is, nothing is happening? package ordner; import java.awt.Color; import java.awt.Graphics; import javax.swing.JFrame; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class PacMan implements ActionListener { private JFrame frame; private DrawPanel panel; private void initGui() { frame = new JFrame("Pacman"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); panel = new DrawPanel(); frame.add(panel); panel.setBackground(Color.BLACK); frame.setSize