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Class vlc.vrml.external.util.VrmlTrace

java.lang.Object
   |
   +----vlc.vrml.external.util.VrmlTrace

public class VrmlTrace

extends Object

Version:

0.6 Beta 2 Copyright 1997 The Virtual Light Company under the GNU LGPL

The latest information and bugs in VermelTrap can be found at http://www.vlc.com.au/VermelTrap/

This class is designed to be inserted into a VrmlScene at any point and forms a formatted string that represents the scene graph existing below that node.

This version is designed for use with the External Authoring Interface. To use the class simply include it in your import line and then you have one of two options;

• If you wish to continually monitor a single node and its contents, you can create an instance of this class with the node that you want to follow in the constructor. To get a printout at any time, simply call the toString() method.
• If you just want to check on an individual node, you can call the static version of toString with the node as the argumnet. You end up with the same result, just it allows you to be more flexible

Author:

Justin Couch justin@vlc.com.au

VrmlTrace()

Create a default VermelTrap.

VrmlTrace(Node)

Create the tracer and set the root node to the given node.

setRootNode(Node)

Set the root node to a new value.

toString()

Take the nominated root node and print out the scene graph that exists underneath it.

toString(Node)

Take the nominated node and print out the scene graph that exists underneath it.

 public VrmlTrace()

Create a default VermelTrap. The root node is set to null

 public VrmlTrace(Node rootNode)

Create the tracer and set the root node to the given node.

Parameters:

rootNode - A reference to a Node that will be used as the root of the tracing

 public void setRootNode(Node node)

Set the root node to a new value. This can be anything - even null

Parameters:

node - The new node to use as the root.

 public String toString()

Take the nominated root node and print out the scene graph that exists underneath it. It works on a recursive system, so it will trace to the depth that you require.

If the root node is null then the string "No root Node defined" is returned.

Returns:

A formatted string representing the scene graph.

Overrides:

toString in class Object

 public static String toString(Node node)

Take the nominated node and print out the scene graph that exists underneath it. It works on a recursive system, so it will trace to the depth that you require.

If the root node is null then the string "Supplied root node is null" is returned. If a root node is already defined from previous calls to this class, it is ignored when this method is callled.

Returns:

A formatted string representing the scene graph.

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