WorldViz User Forum - Arrington Eye tracker

Dear Experts

I'm wondering if anyone can clarify the data that the Arrington Plug-in is picking up in Vizard. I'm using the code below and I get three outputs which I presumes were xposition yposition and velocity (although I can seem to find any confirmation for this) - however these values don't seem to match is being shown in viewpoint. e.g I get

[0.44207999110221863, 0.4781699776649475, 0.0] in vizard

and Viewpoint is showing ~3 and 4 for x and y positions.

Thank you all for you time.

Code:

from ctypes import * # eyetrackka

import os



import sys

sys.path.append('C:/ViewPoint 2.9.2.5')

sys.path.append('C:/Program Files (x86)/WorldViz/Vizard4/plug-ins')



vpxDll = 'C:\ViewPoint 2.9.2.5\VPX_InterApp.dll'



if ( not os.access(vpxDll,os.F_OK) ):

        print("WARNING: Invalid vpxDll path")



cdll.LoadLibrary( vpxDll )

vpx = CDLL( vpxDll )



#Create arrington extension

arrington = viz.add('arrington.dle')

#Connect to eye tracker

tracker = arrington.addEyeTracker()

#Print smoothed gaze position (default)

print tracker.getPosition()