org.web3d.vrml.device
Class Tracker

java.lang.Object
  org.web3d.vrml.device.Tracker

Direct Known Subclasses:

MouseTracker, MouseTracker

public abstract class Tracker

extends java.lang.Object

An abstract representation of a tracker. A tracker is a sensor on a device. A device may contain many trackers.

Version:

$Revision: 1.4 $

Author:

Alan Hudson

Field Summary

static int	MASK_NONE This sensor only issues button events
static int	MASK_ORIENTATION This sensor can change orientation in the scene
static int	MASK_PICKING This sensor can pick items in the scene
static int	MASK_POSITION This sensor can change position in the scene

Constructor Summary

Tracker()

Method Summary

boolean	actionChanges() Can the action type of this sensor change over time?
abstract int	getActionMask() What action types does this sensor return.
abstract void	getState(TrackerState state) Get the current state of this tracker.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MASK_NONE

public static final int MASK_NONE

This sensor only issues button events

See Also:

Constant Field Values

MASK_PICKING

public static final int MASK_PICKING

This sensor can pick items in the scene

See Also:

Constant Field Values

MASK_POSITION

public static final int MASK_POSITION

This sensor can change position in the scene

See Also:

Constant Field Values

MASK_ORIENTATION

public static final int MASK_ORIENTATION

This sensor can change orientation in the scene

See Also:

Constant Field Values

Constructor Detail

Tracker

public Tracker()

Method Detail

actionChanges

public boolean actionChanges()

Can the action type of this sensor change over time?

Returns:

Is this an action figure?

getActionMask

public abstract int getActionMask()

What action types does this sensor return. This a combination of ACTION masks.

Returns:

The action mask.

getState

public abstract void getState(TrackerState state)

Get the current state of this tracker.

Parameters:

state - The current state