Class Playback

java.lang.Object
  |
  +--vrml.VrmlObject
        |
        +--vrml.BaseNode
              |
              +--vrml.node.Script
                    |
                    +--Playback

All Implemented Interfaces:

NetListener

public class Playback

extends vrml.node.Script

implements NetListener

The java that interfaces with the Script in Sensors.wrl. Will read in a file and play back the sensor orientations that it reads. It opens a socket to a server that will play files to it.

Field Summary

private float	a
(package private) boolean	animate Used to indicate that data has come to the network, and the script should send orientation events
private int	currentTime
private static int	dataSize
private int	frameCount count the number of frames that have come in over the network
private boolean	frameReady true if there is a new frame to animate
(package private) int	getCounter
private int	id
private static int	jointPayloadSize
(package private) Net	net
private int	njoints The number of joints we are dealing with
private float[][]	orientation
private float[][]	orientationBuffer
private static int	PORT
(package private) vrml.field.SFRotation[]	rotField References to the rotation fields of the script
private static int	timePayloadSize
private float	x
private float	y
private float	z

Fields inherited from class vrml.BaseNode

browser

Fields inherited from class vrml.VrmlObject

handle

Constructor Summary

Playback()

Method Summary

private void	bufferOrientation(int newid, float newx, float newy, float newz, float newa) The network thread writes into this buffer.
private void	getOrientations() The VRML event thread uses this to update the avatar rotations.
void	initialize() Get references to the EventOut's of the Script.
private void	loadFrame() When all the joint data for a new frame as arrived, then update the vrml display
void	NetReadData(java.io.DataInputStream in_stream) Part of the NetListener interface, this reads the packets that come in over the network socket and sends them to the VRML player.
void	processEvent(vrml.Event e)
void	shutdown() Part of VRML Script Java interface

Methods inherited from class vrml.node.Script

eventsProcessed, getEventIn, getEventOut, getField, processEvents

Methods inherited from class vrml.BaseNode

getBrowser, getBrowserHandle, getFieldHandle, getFieldName, getNode, getPeer, getType, setBrowser, toString

Methods inherited from class vrml.VrmlObject

assign, doAddRef, doRelease, equals, finalize, getHandle, hashCode, makeTimeStamp, setHandle

Methods inherited from class java.lang.Object

, clone, getClass, notify, notifyAll, registerNatives, wait, wait, wait

Field Detail

rotField

vrml.field.SFRotation[] rotField

References to the rotation fields of the script

animate

boolean animate

Used to indicate that data has come to the network, and the script should send orientation events

net

Net net

PORT

private static int PORT

jointPayloadSize

private static int jointPayloadSize

timePayloadSize

private static int timePayloadSize

dataSize

private static int dataSize

currentTime

private int currentTime

id

private int id

x

private float x

y

private float y

z

private float z

a

private float a

njoints

private int njoints

The number of joints we are dealing with

orientation

private float[][] orientation

orientationBuffer

private float[][] orientationBuffer

frameReady

private boolean frameReady

true if there is a new frame to animate

frameCount

private int frameCount

count the number of frames that have come in over the network

getCounter

int getCounter

Constructor Detail

Playback

public Playback()

Method Detail

initialize

public void initialize()

Get references to the EventOut's of the Script.

Overrides:

initialize in class vrml.node.Script

processEvent

public void processEvent(vrml.Event e)

Overrides:

processEvent in class vrml.node.Script

shutdown

public void shutdown()

Part of VRML Script Java interface

Overrides:

shutdown in class vrml.node.Script

bufferOrientation

private void bufferOrientation(int newid,
                               float newx,
                               float newy,
                               float newz,
                               float newa)

The network thread writes into this buffer.

loadFrame

private void loadFrame()

When all the joint data for a new frame as arrived, then update the vrml display

getOrientations

private void getOrientations()

The VRML event thread uses this to update the avatar rotations.

NetReadData

public void NetReadData(java.io.DataInputStream in_stream)

Part of the NetListener interface, this reads the packets that come in over the network socket and sends them to the VRML player.

         
    Packet format:
 	    
    Addr  |  x  | y   |  z  |   a
    short |float|float|float| float
	    
	 or
	    
	 TIME_STAMP | time
	 short      | int;
   

Specified by:

NetReadData in interface NetListener