Hi,
I am trying to develop an app for a case where the users may not be able to focus on the point to calibrate the system. In my environment I can guarantee that the eye level and distance from the tracker will be fixed (or within a very narrow range) and the position and size of the monitor will also be fixed. The variables then are eye size, color, distance between eyes, etc. Is there any way to provide alternate calibration data for such a case?