Temporal delay on movement

[westbyb]

Fantastic! That worked for using addWalkNavigate, but I'm now using VRPN 7 to get location data, as such:

vrpn = viz.add('vrpn7.dle')
headPos = vrpn.addTracker( 'PPT0@'+PPT_MACHINE,0)
iLabs = viz.addExtension( 'inertiallabs.dle' )
headOri = iLabs.addSensorBus(port=INERTIALLABS_HEAD_PORT)[0]

I've tried subbing these values into the code that worked previously, but it's seeming that won't be possible. How should I go about implementing the same idea using vrpn?