|
/*
Essential Java 3D Fast
Ian Palmer
Publisher: Springer-Verlag
ISBN: 1-85233-394-4
*/
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.media.j3d.Appearance;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.Locale;
import javax.media.j3d.PhysicalBody;
import javax.media.j3d.PhysicalEnvironment;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.View;
import javax.media.j3d.ViewPlatform;
import javax.media.j3d.VirtualUniverse;
import javax.vecmath.AxisAngle4d;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.geometry.Cylinder;
/**
* This creates a simple cylinder by using the Cylinder utility class.
*
* @author I.J.Palmer
* @version 1.0
*/
public class SimpleCylinder extends Frame implements ActionListener {
protected Canvas3D myCanvas3D = new Canvas3D(null);
protected Button myButton = new Button("Exit");
/**
* This function builds the view branch of the scene graph. It creates a
* branch group and then creates the necessary view elements to give a
* useful view of our content.
*
* @param c
* Canvas3D that will display the view
* @return BranchGroup that is the root of the view elements
*/
protected BranchGroup buildViewBranch(Canvas3D c) {
BranchGroup viewBranch = new BranchGroup();
Transform3D viewXfm = new Transform3D();
viewXfm.set(new Vector3f(0.0f, 0.0f, 5.0f));
TransformGroup viewXfmGroup = new TransformGroup(viewXfm);
ViewPlatform myViewPlatform = new ViewPlatform();
PhysicalBody myBody = new PhysicalBody();
PhysicalEnvironment myEnvironment = new PhysicalEnvironment();
viewXfmGroup.addChild(myViewPlatform);
viewBranch.addChild(viewXfmGroup);
View myView = new View();
myView.addCanvas3D(c);
myView.attachViewPlatform(myViewPlatform);
myView.setPhysicalBody(myBody);
myView.setPhysicalEnvironment(myEnvironment);
return viewBranch;
}
/**
* This builds the content branch of our scene graph. It uses the Cylinder
* utility class to create the actual shape, adding to to the transform
* group so that the shape is slightly tilted to reveal its 3D shape.
*
* @param shape
* Node that represents the geometry for the content
* @return BranchGroup that is the root of the content branch
*/
protected BranchGroup buildContentBranch() {
BranchGroup contentBranch = new BranchGroup();
Transform3D rotateCube = new Transform3D();
rotateCube.set(new AxisAngle4d(1.0, 1.0, 0.0, Math.PI / 4.0));
TransformGroup rotationGroup = new TransformGroup(rotateCube);
contentBranch.addChild(rotationGroup);
//Create the shape and add it to the branch
rotationGroup.addChild(new Cylinder(1.0f, 1.0f, new Appearance()));
return contentBranch;
}
/**
* Handles the exit button action to quit the program.
*/
public void actionPerformed(ActionEvent e) {
dispose();
System.exit(0);
}
public SimpleCylinder() {
VirtualUniverse myUniverse = new VirtualUniverse();
Locale myLocale = new Locale(myUniverse);
myLocale.addBranchGraph(buildViewBranch(myCanvas3D));
myLocale.addBranchGraph(buildContentBranch());
setTitle("SimpleCylinder");
setSize(400, 400);
setLayout(new BorderLayout());
add("Center", myCanvas3D);
add("South", myButton);
myButton.addActionListener(this);
setVisible(true);
}
public static void main(String[] args) {
SimpleCylinder sw = new SimpleCylinder();
}
}
|
