GEOMETRY

 

POLYGONS

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package geometry;
 
//import javax.swing.JApplet;
 
/**
 *
 * @author dipantazis
 */
//public class NewJApplet extends JApplet {
 
    /**
     * Initialization method that will be called after the applet is loaded into
     * the browser.
     */
  //  public void init() {
        // TODO start asynchronous download of heavy resources
  //  }
 
    // TODO overwrite start(), stop() and destroy() methods
//}
import java.awt.*;
import java.awt.event.*;
//import java.awt.print.PageFormat;
//import java.awt.print.Printable;
//import static java.awt.print.Printable.NO_SUCH_PAGE;
//import static java.awt.print.Printable.PAGE_EXISTS;
//import java.awt.print.PrinterException;
//import java.awt.print.PrinterJob;
import javax.swing.*;
 
 
 
 
 
public class Polygons extends JPanel {
   public void paintComponent(Graphics g) {
  // public static Color get HSBColor
       super.paintComponent(g);
      int n=7;
     Polygon p1 = new Polygon();
      for (int i = 0; i < n; i++)
     
          p1.addPoint((int) 
      (600 + 400 * Math.cos(i * 2 * Math.PI / n)/Math.cos(Math.PI/n)),
      (int) (500 + 400 * Math.sin(i * 2 * Math.PI / n)/Math.cos(Math.PI/n)));
     g.setColor(Color.decode("#ffff00"));
      g.fillPolygon(p1);  
      Polygon p = new Polygon();
     for (int i = 0; i < n; i++)
      p.addPoint((int) 
      (600 + 400 * Math.cos(i * 2 * Math.PI / n)),
      (int) (500 + 400 * Math.sin(i * 2 * Math.PI / n)));
      g.setColor(Color.decode("#00ff00"));
      g.fillPolygon(p);
      Polygon p2 = new Polygon();
      for (int i = 0; i < n; i++)
     
          p2.addPoint((int) 
      (600 + 200 * Math.cos(i * 2 * Math.PI / n)/Math.cos(Math.PI/n)),
      (int) (500 + 200 * Math.sin(i * 2 * Math.PI / n)/Math.cos(Math.PI/n)));
     g.setColor(Color.decode("#ff0000"));
      g.fillPolygon(p2); 
      g.setColor(Color.decode("#0000ff"));
    //  public Color (ini,int int);
      //StdDraw.setPenColor(new Color );
     
      g.drawOval(200, 100, 800, 800);
   }
   public static void main(String[] args) {
      JFrame frame = new JFrame();
      frame.setTitle("Polygon");
      frame.setSize(1200, 1000);
      frame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent e) {
            System.exit(0);
         }
      });
      Container contentPane = frame.getContentPane();
      contentPane.add(new Polygons());
      frame.setVisible(true);
   }
}