exclusive Or on Area - Java 2D Graphics

Java examples for 2D Graphics:Area

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Description

exclusive Or on Area

Demo Code

     /*from   ww  w  .  j  av a2s.c o m*/

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Arc2D;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class PE7 extends JFrame
{
     private static final long serialVersionUID = 6;

     public static void main(String arg[]) 
     {
         JFrame frame = new PE7();
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
         frame.setSize(new Dimension(400,400));
         frame.pack();
         frame.setVisible(true);
       }
     
     public PE7()
     {
          JPanel panel = new DrawStuff();
          panel.setPreferredSize(new Dimension(400,400));
          add(panel);
     }
     
     class DrawStuff extends JPanel
     {
          private static final long serialVersionUID = -8;
          int nPoints = 1000;

           public void paintComponent(Graphics g) 
           {
                super.paintComponent(g);
                Graphics2D g2 = (Graphics2D)g;
                g2.translate(getWidth()/3,getHeight()/2);
                g2.scale(1, -1);
                Ellipse2D bigCircle = new Ellipse2D.Double(0,0,200,200);
                Ellipse2D smallCircle1 = new Ellipse2D.Double((int)bigCircle.getCenterX()-5,(int)bigCircle.getCenterY()/2-5,10,10);
                Ellipse2D smallCircle2 = new Ellipse2D.Double((int)bigCircle.getCenterX()-5,(int)bigCircle.getCenterY()/2+(int)bigCircle.getCenterY()-5,10,10);
                Arc2D arc = new Arc2D.Float((int)bigCircle.getCenterX()-(int)bigCircle.getWidth()/4, 100, 100, 100, 90, 180, Arc2D.OPEN);
                Arc2D arc2 = new Arc2D.Float((int)bigCircle.getCenterX()-(int)bigCircle.getWidth()/4, 0, 100, 100, 270, 180, Arc2D.OPEN);
                Area area = new Area(bigCircle);
                Area area2 = new Area(smallCircle1);
                Area area3 = new Area(smallCircle2);
                Area area4 = new Area(arc);
                Area area5 = new Area(arc2);
                Area areaNew = new Area(bigCircle);
                Area rect = new Area(new Rectangle2D.Double(0,0,100,200));
                g2.draw(arc);
                g2.draw(arc2);
                g2.draw(bigCircle);
                areaNew.intersect(rect);
                areaNew.exclusiveOr(area4);
                areaNew.exclusiveOr(area5);
                areaNew.exclusiveOr(area2);
                areaNew.exclusiveOr(area3);
                g2.fill(areaNew);
           }
     }
}

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