Is there a Sun Bug number is for this problem ?
Can I vote for the importance of this problem ?
It will be wonderful when OrderedGroup works properly.
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> -----Original Message-----
> From: Discussion list for Java 3D API
> [mailto:[EMAIL PROTECTED]]On Behalf Of Kasparian, Raffi J.
> Sent: Friday, 22 September 2000 2:13
> To: [EMAIL PROTECTED]
> Subject: Re: [JAVA3D] ArrayIndexOutOfBoundsException after detach
>
>
> Yes, OrderedGroup is broken. I submitted hte following program to the
> discussion group once earlier and didn't get a response so I'm sending it
> again and I also have sent it directly to the 'Java 3D beta program'. I
> think that the bug was initially reported much earlier by someone else and
> that the Java3D team said that it will be fixed in the upcoming v. 1.2.1.
>
> I apologize if this bug has already been reported. Just in case it hasn't,
> I'm providing a test program to illustrate it. In this program an
> OrderedGroup generates an IndexOutOfBoundsException when a grandchild is
> detached and then replaced. The exception doesn't seem to occur in the case
> of a child -- at least not in my tests.
>
> /*******OrderedGroupBug.java********/
> import java.applet.*;
> import java.awt.*;
> import java.awt.event.*;
> import com.sun.j3d.utils.applet.*;
> import com.sun.j3d.utils.geometry.*;
> import com.sun.j3d.utils.universe.*;
> import javax.media.j3d.*;
>
> public class OrderedGroupBug extends Applet{
> public OrderedGroupBug(){
> setLayout(new BorderLayout());
> Canvas3D c = new Canvas3D(
> SimpleUniverse.getPreferredConfiguration() );
> add( "Center", c );
> final Scene scene = new Scene();
>
> SimpleUniverse u = new SimpleUniverse( c );
> u.getViewingPlatform().setNominalViewingTransform();
> u.addBranchGraph( scene );
> Button b1 = new Button( "Toggle Child" );
> b1.addActionListener( new ActionListener(){
> public void actionPerformed( ActionEvent e ){
> scene.toggleChild();
> }
> });
> add( "North", b1 );
> Button b2 = new Button( "Toggle Grandchild" );
> b2.addActionListener( new ActionListener(){
> public void actionPerformed( ActionEvent e ){
> scene.toggleGrandchild();
> }
> });
> add( "South", b2 );
> }
> public static void main( String[] args ){
> new MainFrame( new OrderedGroupBug(), 256, 256 );
> }
> class Scene extends BranchGroup{
> OrderedGroup OG = new OrderedGroup();{
> OG.setCapability( Group.ALLOW_CHILDREN_WRITE );
> OG.setCapability( Group.ALLOW_CHILDREN_EXTEND );
> }
> BranchGroup BG1 = new BranchGroup();{
> BG1.setCapability( BranchGroup.ALLOW_DETACH );
> BG1.setCapability( Group.ALLOW_CHILDREN_WRITE );
> BG1.setCapability( Group.ALLOW_CHILDREN_EXTEND );
> }
> BranchGroup BG2 = new BranchGroup();{
> BG2.setCapability( BranchGroup.ALLOW_DETACH );
> }
> public Scene(){
> super();
> addChild( OG );
> OG.addChild( BG1 );
> BG1.addChild( BG2 );
> BG2.addChild( new ColorCube( 0.2f ));
> }
> public void toggleChild(){
> if( BG1.isLive() ){
> BG1.detach();
> }else{
> OG.addChild( BG1 );
> }
> }
> public void toggleGrandchild(){
> if( BG2.isLive() ){
> BG2.detach();
> }else{
> BG1.addChild( BG2 );
> }
> }
> }
> }
>
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