Can Shape model a cross section of swiss cheese or a doughnut?

Question

Can a GeneralPath or Area model a shape that has holes in the middle?
Could a GeneralPath model a 2-d cross-section of swiss cheese or a doughnut?
Do all the points of a GeneralPath need to be contiguous?
According Ernimril in [this post|http://forums.sun.com/thread.jspa?forumID=5&threadID=612402] , a GeneralPath can have a hole in the middle, as long as the winding rule is set to WIND_EVEN_ODD. This seems to be confirmed by [the explanation of WIND_EVEN_ODD on the documentation for GNU Classpath|http://developer.classpath.org/doc/java/awt/geom/GeneralPath.html] , and [this nice forum post explaining the difference between the two winding rules|http://forums.sun.com/thread.jspa?forumID=54&threadID=781529] . However none of the examples given point to a shape that consecutive but noncontiguous points.

Answer 1

Thanks for the tips! I've come up with an example that visually demonstrates that this can be done with GeneralPath or Area:
// ShapeTest1.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
class ShapeTest1 extends JComponent
    Area _shape;
    GeneralPath _generalPath;
    ShapeTest1( Dimension d )
        setPreferredSize( d );
        // using Area
        _shape = new Area(
            new Ellipse2D.Double(
                50, 50, 50, 50
        _shape.subtract(
            new Area(     
                new Rectangle2D.Double( 60, 60, 20, 20 )
        // using GeneralPath
        _generalPath = new GeneralPath( GeneralPath.WIND_EVEN_ODD );
        _generalPath.append(
                new Ellipse2D.Double( 150, 150, 100, 100 ), false
        _generalPath.append(
                new Ellipse2D.Double( 160, 160, 50, 50 ), false
    @Override
    protected void paintComponent( Graphics g )
        super.paintComponent( g );
        Graphics2D g2d = ( Graphics2D )g;
        g2d.setColor( Color.BLACK );
        g2d.draw( _shape );
        g2d.setColor( Color.RED );
        g2d.draw( _generalPath );
    public static void main( String[] args )
        JFrame frame = new JFrame( "ShapeTest.java" );
        frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        ShapeTest1 shapeTest = new ShapeTest1( new Dimension( 300, 300 ) );
        frame.getContentPane().add( shapeTest );
        frame.setLocation( 100, 100 );
        frame.pack();
        frame.setVisible( true );
}