Eric,
There is a radial gradient implementation in the GLF software that
you can download at:
http://java.sun.com/products/java-media/2D/samples/index.html
If you use the RadialGradientPaintExt in that software (a multicolor
radial gradient Paint), you can create a sphere effect on a circle.
I have put an example of how to create a sphere effect with that
gradient at the end of this email.
I hope this helps.
Regards.
Vincent Hardy.
Sun Microsystems.
> >At 11:24 AM 9/22/00 -0700, EEOAM wrote:
> > >Hi,
> > >
> > >does anyone know how I can draw a sphere with Java2D?
> > >
> > >Thanks,
> > >
> > >Eric M.
> > >
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import javax.swing.*;
import com.sun.glf.goodies.*;
public class Sphere extends JComponent {
public void paint(Graphics _g){
Graphics2D g = (Graphics2D)_g;
Dimension size = getSize();
int sphereSize = size.width <= size.height? size.width :
size.height;
Color highlightColor = new Color(255, 255, 50);
Color midtoneColor = new Color(200, 160, 40);
Color shadowColor = new Color(128, 30, 10);
float highlightInterval = 2, midtoneInterval = 2;
float shadowInterval = 2, blackInterval = 1;
Ellipse2D sphere = new Ellipse2D.Float(0, 0, sphereSize,
sphereSize);
Rectangle gradientRect = new Rectangle(-sphereSize/2,
-sphereSize/2,
3*sphereSize/2,
3*sphereSize/2);
Color gradientColors[] = {Color.white, highlightColor,
midtoneColor, shadowColor,
Color.black};
float gradientIntervals[] = {highlightInterval, midtoneInterval,
shadowInterval, blackInterval};
RadialGradientPaintExt sphereFilling
= new RadialGradientPaintExt(gradientRect,
gradientColors,
gradientIntervals);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g.setPaint(sphereFilling);
g.fill(sphere);
}
public static void main(String args[]){
JFrame frame = new JFrame();
Sphere sphere = new Sphere();
sphere.setPreferredSize(new Dimension(200, 200));
frame.getContentPane().add(sphere);
frame.getContentPane().setBackground(Color.white);
frame.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent evt){
System.exit(0);
}
});
frame.pack();
frame.setVisible(true);
}
}
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