position tracking
 

i wrote following code for tracking position of ppt wand thru vrpn7 in vizard4
it is unable to track position but runs without any errors
import viz
viz.go()

piazza = viz.addChild('maze.osgb')
viz.MainView.move([3,2,8])

vrpn = viz.add('vrpn7.dle')
posTracker = vrpn.addTracker('PPT0@WORLDVIZ-PC',0)

#Connect to Intersense on local machine running Vizard
isense = viz.add('intersense.dle')
oriTracker = isense.addTracker()

#Create a 6DOF tracker by merging position data from PPT with
#Orientation data from Intersense
headTracker = viz.mergeLinkable(posTracker,oriTracker)

#Link viz.MainView with headTracker
headlink = viz.link(headTracker, viz.MainView)

#Once the user is facing PPT north pressing the 'r' key will align
#Intersense's coordinate system with PPT's coordinate system
vizact.onkeydown ('r', oriTracker.reset)
data=headlink.getData()
print data

How many markers are being streamed from PPT? What is the marker number for the wand?

two markers... numbered 0 and 1

It looks like your code is just getting a handle to VRPN sensor 0, which corresponds to marker 1 in PPT Studio.

If you add the following code to your script do you see the axis model move with the wand:

No..it still doesnt work.
Why dont we first try for only one tracker.
Assist the required changes for only one tracker as a start, rest can b added in similar way

Are you getting data from PPT?

Response after working previous code
(46) from PPTO : no response from server for 10 sec
[0.0,0.0,0.0]
Vrpn error
Vrpn_endpoint :send error reports() no TCP connection

Make sure the machines can ping each other. If that is successful, disable any firewall or virus scanner. That could block the communication.

Ping test already done...n all firewall and virus scanners are disabled

Make sure the VRPN7 output plugin is loaded and Talk is enabled in PPT Studio. If that's set up correctly please contact support@worldviz.com and we'll help troubleshoot further.