Simple MouseBehavior example and later vanish the object !!!

Question

Hi all,
I am new to Java3D and trying to model a network. For nodes of the network I am using spheres. Users of this model will click on any nodes, and links later, to get more information about it. I don�t know what is the best way to implement this, I know that I need a MouseBehavior to get the node which was clicked on and then show a label with some information in it. My problem is:
1- I could not find a simple example of MouseBehavior to learn from.
2- I don�t know how to make that label disappear later, as for example when user presses Esc.
Thanks all,
Ava

Answer 1

Hi Venkat,
It is still not working! I set the user data this way:
[vector[][] include coordinates for each node]
//To put each sphere in its position
        for ( j = 0; j < 2; j++ )// This representation includes a 2-layered network
            for ( i = 0; i < subnetCount; i++ ) {
                if ( j == 1 && nodes2.get( i ).equals( "Not Found!" ) ) {
                    continue;
                Sphere s = new Sphere( 0.07f );
                s.setUserData( j+"."+i );
                s.setCapability( Shape3D.ENABLE_PICK_REPORTING );
                s.setCapability( Shape3D.ALLOW_PICKABLE_WRITE );
                s.setCapability( Shape3D.ALLOW_PICKABLE_READ );
                s.setCapability( Shape3D.ALLOW_APPEARANCE_WRITE );
                s.setCapability( Shape3D.ALLOW_APPEARANCE_READ );
                s.getShape(Sphere.BODY).setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
                s.setAppearance( app[j] );
                // This sphere can be picked to view more information about the corresponding cluster
                 s.setPickable( true );
                TransformGroup tg = new TransformGroup();
                Transform3D transform = new Transform3D();
                transform.setTranslation( vector[j] );
tg.setTransform( transform );
tg.addChild( s );
Bounds boundSphere = new BoundingSphere( new Point3d( vector[j][i].x, vector[j][i].y,vector[j][i].z), 1.0 );
PickMouseBehavior mousePick = new PickHighlightBehavior ( canvas3D, globalBR, boundSphere );
//Add the sphere to the graph
globalBR.addChild( tg );
}Then I try to get it by:pickResult = pickCanvas.pickClosest();
     if (pickResult != null) {
     shape = (Shape3D) pickResult.getNode(PickResult.SHAPE3D);
System.out.println( "Shape name: "+shape.getUserData()); // It returns all nul!!!
It returns null ! I checked It actually sets the user data but when it is picked, it returns null!
Your concerns are appreciated,
Ava