五角星图形

绘制一个五角星图形的通用路径，使这些五角星围着新的原点旋转排列。

代码如下：
import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;
public class Shapes2 extends JFrame {

public Shapes2()
{
super( "Drawing 2D Shapes" );
getContentPane().setBackground( Color.WHITE );
setSize( 400, 400 );
setVisible( true );
}


public void paint( Graphics g )
{
super.paint( g );

int xPoints[] = { 55, 67, 109, 73, 83, 55, 27, 37, 1, 43 };
int yPoints[] = { 0, 36, 36, 54, 96, 72, 96, 54, 36, 36 };

Graphics2D g2d = ( Graphics2D ) g;
GeneralPath star = new GeneralPath();


star.moveTo( xPoints[ 0 ], yPoints[ 0 ] );


for ( int count = 1; count < xPoints.length; count++ )
star.lineTo( xPoints[ count ], yPoints[ count ] );

star.closePath();

g2d.translate( 200, 200 );


for ( int count = 1; count <= 20; count++ ) {
g2d.rotate( Math.PI / 10.0 );
g2d.setColor( new Color( ( int ) ( Math.random() * 256 ),
( int ) ( Math.random() * 256 ),
( int ) ( Math.random() * 256 ) ) );

g2d.fill( star );
}

}
public static void main( String args[] )
{
Shapes2 application = new Shapes2();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}

}

Tags: 五角星图形  五角星设计  五角星算法  五角星课件  五角星教案  
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