Hi Qiuli,
The attach program invoke setString() after a few second but
it works fine under v1.2. Can you please give us a test
program that to illustrate this bug.
Thanks.
- Kelvin
-------------
Java 3D Team
Sun Microsystems Inc.
>X-Unix-From: [EMAIL PROTECTED] Thu Jan 11 15:39:24 2001
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>Date: Thu, 11 Jan 2001 17:29:58 -0600
>From: Qiuli Sun <[EMAIL PROTECTED]>
>Subject: [JAVA3D] Why can not OrietentedShape3D and Text3D.setString() work together?
>To: [EMAIL PROTECTED]
>
>Hi,
>
>I have a strange problem. When I used setString() to change the string in an
>Text3D instance of an OrientedShape3D object, the string is changed but it
>never rotates again. If I don't use setString() of Text3D, everything works
>fine. What is the reason?
>
>
>Thank you.
>
>
>Qiuli
>
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/*
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* Copyright (c) 1996-2000 Sun Microsystems, Inc. All Rights Reserved.
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* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
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* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
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import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.behaviors.mouse.*;
public class OrientedTest extends Applet {
// setup font stuff
private String fontName = "TestFont";
private String textString = "OrientedShape3D";
float sl = textString.length();
Text3D txt;
boolean doneInit = false;
// paths to texture image files
private java.net.URL earthImage = null;
private java.net.URL stoneImage = null;
private SimpleUniverse u = null;
public BranchGroup createSceneGraph() {
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
TransformGroup objScale = new TransformGroup();
Transform3D textMat = new Transform3D();
// Assuming uniform size chars, set scale to fit string in view
textMat.setScale(1.2/sl);
objScale.setTransform(textMat);
// 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);
objRoot.addChild(objTrans);
// Create a new Behavior object that will perform the
// desired operation on the specified transform and add
// it into the scene graph.
Transform3D yAxis = new Transform3D();
Alpha rotationAlpha = new Alpha(-1, 4000);
RotationInterpolator rotator =
new RotationInterpolator(rotationAlpha, objTrans, yAxis,
0.0f, (float) Math.PI*2.0f);
BoundingSphere bounds =
new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
rotator.setSchedulingBounds(bounds);
objRoot.addChild(rotator);
Appearance apText = new Appearance();
Material m = new Material();
m.setLightingEnable(true);
apText.setMaterial(m);
// Create the rotate behavior node
MouseRotateY behavior = new MouseRotateY();
behavior.setTransformGroup(objTrans);
objTrans.addChild(behavior);
behavior.setSchedulingBounds(bounds);
// Create the zoom behavior node
MouseZoom behavior2 = new MouseZoom();
behavior2.setTransformGroup(objTrans);
objTrans.addChild(behavior2);
behavior2.setSchedulingBounds(bounds);
// Create the translate behavior node
MouseTranslate behavior3 = new MouseTranslate();
behavior3.setTransformGroup(objTrans);
objTrans.addChild(behavior3);
behavior3.setSchedulingBounds(bounds);
Appearance apEarth= new Appearance();
Material mm = new Material();
mm.setLightingEnable(true);
apEarth.setMaterial(mm);
Appearance apStone = new Appearance();
apStone.setMaterial(mm);
// create 3D text
Font3D f3d = new Font3D(new Font(fontName, Font.PLAIN, 2),
new FontExtrusion());
txt = new Text3D(f3d, textString,
new Point3f( -sl/2.0f, 3.0f, 0.0f));
txt.setCapability(Text3D.ALLOW_STRING_WRITE);
OrientedShape3D textShape = new OrientedShape3D();
textShape.setGeometry(txt);
textShape.setAppearance(apText);
textShape.setAlignmentAxis( 0.0f, 1.0f, 0.0f);
objScale.addChild( textShape );
// Create a simple shape leaf node, add it to the scene graph.
Transform3D cubeMat = new Transform3D();
TransformGroup cubeTrans = new TransformGroup(cubeMat);
cubeMat.set(new Vector3d(0.9, 0.0, -1.0));
cubeTrans.setTransform(cubeMat);
cubeTrans.addChild(new ColorCube(0.3));
objTrans.addChild(cubeTrans);
TextureLoader stoneTex = new TextureLoader(stoneImage, new String("RGB"),
this);
if (stoneTex != null) apStone.setTexture(stoneTex.getTexture());
TextureAttributes texAttr = new TextureAttributes();
texAttr.setTextureMode(TextureAttributes.MODULATE);
apStone.setTextureAttributes(texAttr);
Transform3D coneMat = new Transform3D();
TransformGroup coneTrans = new TransformGroup(coneMat);
coneMat.set(new Vector3d(0.0, 0.0, 0.0));
coneTrans.setTransform(coneMat);
coneTrans.addChild(new Cone(.2f, 0.8f,Cone.GENERATE_NORMALS |
Cone.GENERATE_TEXTURE_COORDS, apStone));
objTrans.addChild(coneTrans);
TextureLoader earthTex = new TextureLoader(earthImage, new String("RGB"),
this);
if (earthTex != null) apEarth.setTexture(earthTex.getTexture());
apEarth.setTextureAttributes(texAttr);
Transform3D cylinderMat = new Transform3D();
TransformGroup cylinderTrans = new TransformGroup(cylinderMat);
cylinderMat.set(new Vector3d(-0.9, 0.5, -1.0));
cylinderTrans.setTransform(cylinderMat);
cylinderTrans.addChild(new Cylinder(.35f, 2.0f,Cylinder.GENERATE_NORMALS |
Cylinder.GENERATE_TEXTURE_COORDS, apEarth));
objTrans.addChild(cylinderTrans);
objTrans.addChild(objScale);
// 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(0.1f, 0.1f, 0.1f);
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);
apText.setMaterial(mm);
// Have Java 3D perform optimizations on this scene graph.
objRoot.compile();
return objRoot;
}
public OrientedTest() {
}
public OrientedTest(java.net.URL earthURL, java.net.URL stoneURL) {
earthImage = earthURL;
stoneImage = stoneURL;
}
public void init() {
// the paths to the image files for an applet
if (earthImage == null) {
try {
earthImage = new java.net.URL(getCodeBase().toString() +
"../images/earth.jpg");
}
catch (java.net.MalformedURLException ex) {
System.out.println(ex.getMessage());
System.exit(1);
}
}
if (stoneImage == null) {
try {
stoneImage = new java.net.URL(getCodeBase().toString() +
"../images/stone.jpg");
}
catch (java.net.MalformedURLException ex) {
System.out.println(ex.getMessage());
System.exit(1);
}
}
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, 4);
u = new SimpleUniverse(c);
// add mouse behaviors to ViewingPlatform
ViewingPlatform viewingPlatform = u.getViewingPlatform();
// there is a special rotate behavior, so can't use the utility
// method
MouseRotateY rotate = new MouseRotateY();
rotate.setTransformGroup(viewingPlatform.getMultiTransformGroup().
getTransformGroup(0));
BranchGroup rotateBG = new BranchGroup();
rotateBG.addChild(rotate);
viewingPlatform.addChild(rotateBG);
BoundingSphere bounds =
new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
rotate.setSchedulingBounds(bounds);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
doneInit = true;
}
void setString(String s) {
txt.setString(s);
}
public void destroy() {
u.removeAllLocales();
}
//
// The following allows OrientedTest to be run as an application
// as well as an applet
//
public static void main(String[] args) {
java.net.URL earthURL = null;
java.net.URL stoneURL = null;
try {
// the paths to the image files for an application
earthURL = new java.net.URL("file:../images/earth.jpg");
stoneURL = new java.net.URL("file:../images/stone.jpg");
}
catch (java.net.MalformedURLException ex) {
System.out.println(ex.getMessage());
System.exit(1);
}
OrientedTest test = new OrientedTest(earthURL, stoneURL);
new MainFrame(test, 400, 400);
while (!test.doneInit) {
try {
Thread.sleep(50);
} catch (Exception e){}
}
try {
Thread.sleep(5000);
} catch (Exception e){}
System.out.println("setString");
test.setString("BUG !!");
}
}
