org.j3d.renderer.aviatrix3d.util

Interface SceneGraphTraversalObserver

All Known Implementing Classes:

ScenePrinter

public interface SceneGraphTraversalObserver

An observer interface that reports on the scene graph traversal state.

The observer will report the top of a use hierarchy. If the traverser, in it's internal references, detects a reference re-use then the flag will be passed indicating this state. Once a shared graph has been detected, the traverser does not further re-descend the shared state.

When reporting the parent node, if the root is the root node of the scene graph, the parent reference will be null.

Version:

$Revision: 1.2 $

Author:

Justin Couch

Method Summary

Modifier and Type	Method and Description
void	observedNode(SceneGraphObject parent, SceneGraphObject child, boolean shared, int depth) Notification of a scene graph object that has been traversed in the scene.

Method Detail

observedNode

void observedNode(SceneGraphObject parent,
                  SceneGraphObject child,
                  boolean shared,
                  int depth)

Notification of a scene graph object that has been traversed in the scene.

Parameters:

parent - The parent node of this node

child - The child node that is being observed

shared - true if the object reference has already been traversed and this is beyond the first reference

depth - The depth of traversal from the top of the tree. Starts at 0 for top.