Vizard AR Problem.....

[allanjjj]

i saw the code below is to display avatar only when the marker is shown, but when I run the script, the avatar still shows and jump randomly if no marker is shown in Camera. Is there any problem with the code below?

import viz
viz.go()

#Add ARToolkit extension
ar = viz.add('artoolkit.dle')

#Create camera using first available webcam
camera = ar.addWebCamera()

#Create matrix marker
marker = camera.addMatrixMarker(0,width=1000)

#Add avatar model and set state 1
avatar = viz.add('vcc_male.cfg')
avatar.state(1)

#Link avatar model to marker sensor
viz.link(marker,avatar)

#Method that update if the marker is visible
def updateVisible():
if marker.getVisible():
avatar.visible(viz.ON)
else:
avatar.visible(viz.OFF)

vizact.ontimer(0,updateVisible)