I am using a Tobii TX300 eye tracker. The coordinate system I am using is ADCSpx(origin is at the top left corner of the screen). I still didn’t understand the eye position. Please clarify the term ‘relative to eye tracker’. In my case, the eye tracker is fit at the bottom part of the screen.
My question is that when should I get a zero value for the Horizontal position of left eye? This will better help me to understand the reference point for eye position.
If possible, please give a pictorial representation.