How to pass only 1 axis of the position signal from the source to the dest in a LINK?

[Jeff]

Yes, you can get the position and orientation of the tracker each frame and apply whichever parts of that you want:

import viz
import vizact
import vizcam
viz.go()

dojo = viz.addChild('dojo.osgb')

keyTracker = vizcam.addKeyboard6DOF()

def updateView():
	pos = keyTracker.getPosition()
	ori = keyTracker.getEuler()
	
	viz.MainView.setPosition([pos[0],1.8,0])
	viz.MainView.setEuler(ori)
	
vizact.onupdate(0,updateView)