Re: [JAVA2D] How to fill the area between two parallel arcs

[java2d]

Something like this:

[code]
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Arc2D;
import java.awt.geom.Path2D;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

@SuppressWarnings("serial")
public class ParallelArcs extends JComponent {
  @Override
  protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                         RenderingHints.VALUE_ANTIALIAS_ON);
    // center of both arcs
    double x = 100.0;
    double y = 80.0;
    // radii of arcs
    double r1 = 50.0;
    double r2 = 20.0;
    // diameters of arcs
    double d1 = 2 * r1;
    double d2 = 2 * r2;
    // start angle and extend
    double start = -45;
    double extent = 225;
    // create arcs
    Arc2D arc1 = new Arc2D.Double(x - r1, y - r1, d1, d1, start, extent,
                                  Arc2D.OPEN);
    Arc2D arc2 = new Arc2D.Double(x - r2, y - r2, d2, d2, start + extent,
                                  -extent, Arc2D.OPEN);
    // create path that consists of arcs
    Path2D path2D = new Path2D.Double();
    path2D.append(arc1, false);
    path2D.append(arc2, true);
    path2D.closePath();
    // fill constructed path
    g2d.fill(path2D);
  }

  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        JFrame frame = new JFrame("Parallel Arcs");
        frame.getContentPane().add(new ParallelArcs());
        frame.setSize(200, 200);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
      }
    });
  }
}
[/code]
[Message sent by forum member 'kamre' (kamre)]

http://forums.java.net/jive/thread.jspa?messageID=334394

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