duration of fixation and coordinates in c#

[alvin10079]

Hi,
I am freshman in eye tracking field and curious for couple of problems.

one: How to know duration of fixation when received "IsFixated" is true from GazeData?
second: What is different between raw gaze coordinates and smoothed gaze coordinates?

looking forward to get reply.

Thank you so much.

[Olavz]

The feature you are looking, I believe you must develop your self.

If I where to detect when a user fixates on a point for over 500ms?

First I would create a timestamp and a flag for when isFixated returns true. So when I check isFixated the next time and it remains true I would contract current time with my saved timestamp. If the contracted time exceeds 500ms I can be sure that the user fixated on this point for 500ms. However you choose to go about it, be careful so you dont get a bottleneck.