Text 3D Load
/*
* @(#)Text3DLoad.java 1.19 02/10/21 13:56:22
*
* Copyright (c) 1996-2002 Sun Microsystems, Inc. All Rights Reserved.
*
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* modification, are permitted provided that the following conditions are met:
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* this list of conditions and the following disclaimer.
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* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
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* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
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import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Font;
import java.awt.GraphicsConfiguration;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.media.j3d.Alpha;
import javax.media.j3d.AmbientLight;
import javax.media.j3d.Appearance;
import javax.media.j3d.Background;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.DirectionalLight;
import javax.media.j3d.Font3D;
import javax.media.j3d.FontExtrusion;
import javax.media.j3d.Material;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Text3D;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.behaviors.vp.OrbitBehavior;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.universe.ViewingPlatform;
public class Text3DLoad extends Applet implements ActionListener {
private String fontName = "TestFont";
private String textString = null;
private double tessellation = 0.0;
private SimpleUniverse u;
private Button button;
private boolean behaviorsOn = false;
private OrbitBehavior orbit;
public BranchGroup createSceneGraph() {
float sl = textString.length();
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
// Create a Transformgroup to scale all objects so they
// appear in the scene.
TransformGroup objScale = new TransformGroup();
Transform3D t3d = new Transform3D();
// Assuming uniform size chars, set scale to fit string in view
t3d.setScale(1.2 / sl);
objScale.setTransform(t3d);
objRoot.addChild(objScale);
// Create the transform group node and initialize it to the
// identity. Enable the TRANSFORM_WRITE capability so that
// our behavior code can modify it at runtime. Add it to the
// root of the subgraph.
TransformGroup objTrans = new TransformGroup();
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
objScale.addChild(objTrans);
Font3D f3d;
if (tessellation > 0.0) {
f3d = new Font3D(new Font(fontName, Font.PLAIN, 2), tessellation,
new FontExtrusion());
} else {
f3d = new Font3D(new Font(fontName, Font.PLAIN, 2),
new FontExtrusion());
}
Text3D txt = new Text3D(f3d, textString, new Point3f(-sl / 2.0f, -1.f,
-1.f));
Shape3D sh = new Shape3D();
Appearance app = new Appearance();
Material mm = new Material();
mm.setLightingEnable(true);
app.setMaterial(mm);
sh.setGeometry(txt);
sh.setAppearance(app);
objTrans.addChild(sh);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
if (false) {
Transform3D yAxis = new Transform3D();
Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0,
4000, 0, 0, 0, 0, 0);
RotationInterpolator rotator = new RotationInterpolator(
rotationAlpha, objTrans, yAxis, 0.0f,
(float) Math.PI * 2.0f);
rotator.setSchedulingBounds(bounds);
objTrans.addChild(rotator);
}
// Set up the background
Color3f bgColor = new Color3f(0.05f, 0.05f, 0.5f);
Background bgNode = new Background(bgColor);
bgNode.setApplicationBounds(bounds);
objRoot.addChild(bgNode);
// Set up the ambient light
Color3f ambientColor = new Color3f(0.3f, 0.3f, 0.3f);
AmbientLight ambientLightNode = new AmbientLight(ambientColor);
ambientLightNode.setInfluencingBounds(bounds);
objRoot.addChild(ambientLightNode);
// Set up the directional lights
Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
Vector3f light1Direction = new Vector3f(1.0f, 1.0f, 1.0f);
Color3f light2Color = new Color3f(1.0f, 1.0f, 0.9f);
Vector3f light2Direction = new Vector3f(-1.0f, -1.0f, -1.0f);
DirectionalLight light1 = new DirectionalLight(light1Color,
light1Direction);
light1.setInfluencingBounds(bounds);
objRoot.addChild(light1);
DirectionalLight light2 = new DirectionalLight(light2Color,
light2Direction);
light2.setInfluencingBounds(bounds);
objRoot.addChild(light2);
return objRoot;
}
private void usage() {
System.out
.println("Usage: java Text3DLoad [-f fontname] [-t tessellation] [<text>]");
System.exit(0);
} // End of usage
public Text3DLoad() {
}
public Text3DLoad(String args[]) {
if (args.length == 0) {
// usage();
textString = "Java3D";
} else {
for (int i = 0; i < args.length; i++) {
if (args[i].startsWith("-")) {
if (args[i].equals("-f")) {
if (i < args.length - 1) {
fontName = args[++i];
} else {
usage();
}
} else if (args[i].equals("-t")) {
if (i < args.length - 1) {
tessellation = Double.parseDouble(args[++i]);
} else {
usage();
}
} else {
System.err.println("Argument '" + args[i]
+ "' ignored.");
}
} else {
textString = args[i];
}
}
}
if (textString == null) {
usage();
}
}
public void init() {
if (textString == null) {
textString = "Java3D";
}
setLayout(new BorderLayout());
button = new Button("remove behaviors");
button.addActionListener(this);
Panel p = new Panel();
p.add(button);
add("South", p);
GraphicsConfiguration config = SimpleUniverse
.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config);
add("Center", c);
// Create a simple scene and attach it to the virtual universe
BranchGroup scene = createSceneGraph();
// create a SimpleUniverse with 4 TransformGroups for the mouse
// behaviors
u = new SimpleUniverse(c);
// add the behaviors to the ViewingPlatform
ViewingPlatform viewingPlatform = u.getViewingPlatform();
viewingPlatform.setNominalViewingTransform();
// add orbit behavior to ViewingPlatform
orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL
| OrbitBehavior.STOP_ZOOM);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
orbit.setSchedulingBounds(bounds);
viewingPlatform.setViewPlatformBehavior(orbit);
behaviorsOn = true;
u.addBranchGraph(scene);
}
public void destroy() {
u.cleanup();
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == button) {
ViewingPlatform v = u.getViewingPlatform();
if (behaviorsOn) {
v.setViewPlatformBehavior(null);
button.setLabel("add behaviors");
behaviorsOn = false;
} else {
v.setViewPlatformBehavior(orbit);
button.setLabel("remove behaviors");
behaviorsOn = true;
}
}
}
//
// The following allows Text3DLoad to be run as an application
// as well as an applet
//
public static void main(String[] args) {
new MainFrame(new Text3DLoad(args), 700, 700);
}
}
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