Mega Code Archive
Text 2D Test
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/*
* @(#)Text2DTest.java 1.11 02/10/21 13:55:56
*
* Copyright (c) 1996-2002 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met: -
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. - Redistribution in binary
* form must reproduce the above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* 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
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
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* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
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*
* You acknowledge that Software is not designed,licensed or intended for use in
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*/
import java.applet.Applet;
import java.awt.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.GraphicsConfiguration;
import java.awt.event.KeyEvent;
import java.util.Enumeration;
import javax.media.j3d.Alpha;
import javax.media.j3d.Appearance;
import javax.media.j3d.Behavior;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.Bounds;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.PolygonAttributes;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.WakeupCondition;
import javax.media.j3d.WakeupCriterion;
import javax.media.j3d.WakeupOnAWTEvent;
import javax.media.j3d.WakeupOr;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.Text2D;
import com.sun.j3d.utils.universe.SimpleUniverse;
public class Text2DTest extends Applet {
private SimpleUniverse u = null;
public BranchGroup createSceneGraph() {
// 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();
t3d.setScale(0.4);
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);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
TransformGroup textTranslationGroup;
Transform3D textTranslation;
float yPos = -.5f;
Shape3D textObject = new Text2D("Rotating Yellow Text", new Color3f(1f,
1f, 0f), "Serif", 60, Font.BOLD);
Appearance app = textObject.getAppearance();
PolygonAttributes pa = app.getPolygonAttributes();
if (pa == null)
pa = new PolygonAttributes();
pa.setCullFace(PolygonAttributes.CULL_NONE);
if (app.getPolygonAttributes() == null)
app.setPolygonAttributes(pa);
objTrans.addChild(textObject);
textTranslation = new Transform3D();
textTranslation.setTranslation(new Vector3f(0f, yPos, 0f));
textTranslationGroup = new TransformGroup(textTranslation);
textTranslationGroup.addChild(objTrans);
objScale.addChild(textTranslationGroup);
yPos += .5f;
/* Blue 40point text */
textObject = new Text2D("Blue 40point Text", new Color3f(0f, 0f, 1f),
"Serif", 40, Font.BOLD);
textTranslation = new Transform3D();
textTranslation.setTranslation(new Vector3f(0f, yPos, 0f));
textTranslationGroup = new TransformGroup(textTranslation);
textTranslationGroup.addChild(textObject);
objScale.addChild(textTranslationGroup);
yPos += .5f;
/* Green italic text */
textObject = new Text2D("Green Italic Text", new Color3f(0f, 1f, 0f),
"Serif", 70, Font.ITALIC);
textTranslation = new Transform3D();
textTranslation.setTranslation(new Vector3f(0f, yPos, 0f));
textTranslationGroup = new TransformGroup(textTranslation);
textTranslationGroup.addChild(textObject);
objScale.addChild(textTranslationGroup);
yPos += .5f;
// Create a new Behavior object that will perform the desired
// operation on the specified transform object and add it into
// the scene graph.
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);
return objRoot;
}
public Text2DTest() {
}
public void init() {
setLayout(new BorderLayout());
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();
u = new SimpleUniverse(c);
MoverBehavior navigator = new MoverBehavior(u.getViewingPlatform()
.getViewPlatformTransform());
scene.addChild(navigator);
// Have Java 3D perform optimizations on this scene graph.
scene.compile();
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
}
public void destroy() {
u.cleanup();
}
//
// The following allows HelloUniverse to be run as an application
// as well as an applet
//
public static void main(String[] args) {
new MainFrame(new Text2DTest(), 256, 256);
}
}
// Mover behavior class - used to allow viewer to move using arrow keys
class MoverBehavior extends Behavior {
WakeupOnAWTEvent w1 = new WakeupOnAWTEvent(KeyEvent.KEY_PRESSED);
WakeupCriterion[] w2 = { w1 };
WakeupCondition w = new WakeupOr(w2);
TransformGroup viewTransformGroup;
double rotation = 0.0; // holds current rotation radians
public void initialize() {
// Establish initial wakeup criteria
wakeupOn(w);
}
/**
* Override Behavior's stimulus method to handle the event.
*/
public void processStimulus(Enumeration criteria) {
WakeupOnAWTEvent ev;
WakeupCriterion genericEvt;
AWTEvent[] events;
while (criteria.hasMoreElements()) {
genericEvt = (WakeupCriterion) criteria.nextElement();
if (genericEvt instanceof WakeupOnAWTEvent) {
ev = (WakeupOnAWTEvent) genericEvt;
events = ev.getAWTEvent();
processManualEvent(events);
}
}
// Set wakeup criteria for next time
wakeupOn(w);
}
/**
* Process a keyboard event to move or rotate the viewer.
*/
void processManualEvent(AWTEvent[] events) {
for (int i = 0; i < events.length; ++i) {
if (events[i] instanceof KeyEvent) {
KeyEvent event = (KeyEvent) events[i];
if (event.getKeyCode() == KeyEvent.VK_EQUALS) {
continue;
}
Transform3D t = new Transform3D();
viewTransformGroup.getTransform(t);
Vector3f viewDir = new Vector3f(0f, 0f, -1f);
Vector3f translation = new Vector3f();
t.get(translation);
t.transform(viewDir);
if (event.getKeyCode() == KeyEvent.VK_UP) {
translation.x += viewDir.x;
translation.y += viewDir.y;
translation.z += viewDir.z;
} else if (event.getKeyCode() == KeyEvent.VK_DOWN) {
translation.x -= viewDir.x;
translation.y -= viewDir.y;
translation.z -= viewDir.z;
} else if (event.getKeyCode() == KeyEvent.VK_RIGHT) {
rotation += -.1;
} else if (event.getKeyCode() == KeyEvent.VK_LEFT) {
rotation += .1;
}
t.rotY(rotation);
t.setTranslation(translation);
viewTransformGroup.setTransform(t);
}
}
}
/**
* Constructor
*/
public MoverBehavior(TransformGroup trans) {
viewTransformGroup = trans;
Bounds bound = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 10000.0);
this.setSchedulingBounds(bound);
}
}
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