Dengan JAVA GUI kita bisa menggambar polygons dalam program kita. Dengan menentukan titik-titik koordinat masing-masing kita akan mendapatkan gambar yang kita inginkan.
Ini source code programnya. Silahkan copy-paste dan kompile.
// Fig. 12.21: DrawPolygons.java
// Drawing polygons.
import java.awt.*;
import javax.swing.*;
public class DrawPolygons extends JFrame {
// set window's title bar String and dimensions
public DrawPolygons()
{
super( "Drawing Polygons" );
setSize( 275, 230 );
setVisible( true );
}
// draw polygons and polylines
public void paint( Graphics g )
{
super.paint( g ); // call superclass's paint method
int xValues[] = { 20, 40, 50, 30, 20, 15 };
int yValues[] = { 50, 50, 60, 80, 80, 60 };
Polygon polygon1 = new Polygon( xValues, yValues, 6 );
g.drawPolygon( polygon1 );
int xValues2[] = { 70, 90, 100, 80, 70, 65, 60 };
int yValues2[] = { 100, 100, 110, 110, 130, 110, 90 };
g.drawPolyline( xValues2, yValues2, 7 );
int xValues3[] = { 120, 140, 150, 190 };
int yValues3[] = { 40, 70, 80, 60 };
g.fillPolygon( xValues3, yValues3, 4 );
Polygon polygon2 = new Polygon();
polygon2.addPoint( 165, 135 );
polygon2.addPoint( 175, 150 );
polygon2.addPoint( 270, 200 );
polygon2.addPoint( 200, 220 );
polygon2.addPoint( 130, 180 );
g.fillPolygon( polygon2 );
} // end method paint
// execute application
public static void main( String args[] )
{
DrawPolygons application = new DrawPolygons();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}
} // end class DrawPolygons
