Examples of javax.media.j3d.SceneGraphObject

javax.media.j3d.SceneGraphObject
SceneGraphObject is the common superclass for all scene graph objects. Scene graph objects are classified into two main types: nodes and node components. The Node object is the common superclass of all nodes, which includes TransformGroup, Shape3D, etc. The NodeComponent object is the common superclass of all node components, which includes Geometry, Appearance, etc.
All scene graph objects have a name, a user data object, a set of capability bits, and a set of capabilityIsFrequent bits.
Capability bits control whether a particular attribute in a node or node component is readable or writable. For live or compiled scene graphs, only those attributes whose capabilities are set before the scene graph is compiled or made live may be read or written. The default value for all read capability bits is true, meaning that all attributes may be read by default. The default value for all write capability bits is false, meaning that no attributes may be written by default. Read capability bits are defined as those capability bits of the form ALLOW_*_READ, plus the ALLOW_INTERSECT capability bit. Write capability bits are defined as those capability bits of the form ALLOW_*_WRITE, plus the ALLOW_CHILDREN_EXTEND and ALLOW_DETACH capability bits.
NOTE that the ENABLE_COLLISION_REPORTING and ENABLE_PICK_REPORTING bits are not really capability bits, although they are set with the setCapability method. The default value for each of the ENABLE_*_REPORTING bits is false.
For more information, see the Introduction to the Java 3D API.

/*     */ 
/* 302 */       ret = createNode(state);
/*     */     }
/*     */     catch (ClassNotFoundException e)
/*     */     {
/*     */       SceneGraphObject ret;
/* 306 */       if (this.control.useSuperClassIfNoChildClass())
/* 307 */         ret = createNodeFromSuper(className);
/*     */       else
/* 309 */         throw new SGIORuntimeException("No Such Class " + className);
/*     */     }
/*     */     SceneGraphObject ret;
/* 313 */     return ret;
/*     */   }

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/*     */   {
/* 324 */     String tmp = getClass().getName();
/* 325 */     String superClass = tmp.substring(tmp.indexOf("state") + 6, tmp.length() - 5);
/*     */ 
/* 327 */     System.err.println("Unable to create node " + className + " attempting Java3D superclass " + superClass);
/*     */     SceneGraphObject ret;
/*     */     try
/*     */     {
/* 330 */       Class state = Class.forName(superClass, true, this.control.getClassLoader());
/*     */ 
/* 332 */       ret = (SceneGraphObject)state.newInstance();

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/* 345 */     return ret;
/*     */   }
/*     */ 
/*     */   private SceneGraphObject createNode(String className, Class[] parameterTypes, Object[] parameters)
/*     */   {
/*     */     SceneGraphObject ret;
/*     */     try
/*     */     {
/* 362 */       Class state = Class.forName(className);
/* 363 */       Constructor constructor = state.getConstructor(parameterTypes);
/* 364 */       ret = (SceneGraphObject)constructor.newInstance(parameters);
/*     */     }
/*     */     catch (ClassNotFoundException e1)
/*     */     {
/*     */       SceneGraphObject ret;
/* 366 */       if (this.control.useSuperClassIfNoChildClass())
/* 367 */         ret = createNodeFromSuper(className, parameterTypes, parameters);
/*     */       else
/* 369 */         throw new SGIORuntimeException("No State class for " + className);
/*     */     }

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/* 388 */     return ret;
/*     */   }
/*     */ 
/*     */   protected SceneGraphObject createNode(Class j3dClass, Class[] parameterTypes, Object[] parameters)
/*     */   {
/*     */     SceneGraphObject ret;
/*     */     try
/*     */     {
/* 405 */       Constructor constructor = j3dClass.getConstructor(parameterTypes);
/* 406 */       ret = (SceneGraphObject)constructor.newInstance(parameters);
/*     */     } catch (IllegalAccessException e2) {

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/*     */ 
/*     */   private SceneGraphObject createNodeFromSuper(String className, Class[] parameterTypes, Object[] parameters)
/*     */   {
/* 435 */     String tmp = getClass().getName();
/* 436 */     String superClass = tmp.substring(tmp.indexOf("state") + 6, tmp.length() - 5);
/*     */     SceneGraphObject ret;
/*     */     try
/*     */     {
/* 440 */       Class state = Class.forName(superClass);
/* 441 */       Constructor constructor = state.getConstructor(parameterTypes);
/* 442 */       ret = (SceneGraphObject)constructor.newInstance(parameters);

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        TransformGroup trunkTransformGroup = (TransformGroup) trunk3D.getGroup().getChild(0);
        Enumeration transformChilds = trunkTransformGroup.getAllChildren();
        // check at least one element
        assertTrue(transformChilds.hasMoreElements());
        SceneGraphObject child = (SceneGraphObject) transformChilds.nextElement();
        assertEquals(trunkCylinder, child);
        // check only one element
        assertFalse(transformChilds.hasMoreElements());


        // get transform object

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        TransformGroup trunkTransformGroup = (TransformGroup) trunk3D.getGroup().getChild(0);
        Enumeration transformChilds = trunkTransformGroup.getAllChildren();
        // check at least one element
        assertTrue(transformChilds.hasMoreElements());
        SceneGraphObject child = (SceneGraphObject) transformChilds.nextElement();
        assertEquals(trunkCylinder, child);
        // check only one element
        assertFalse(transformChilds.hasMoreElements());


        // get transform object

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