distance: eyes tobii eye tracker

[Chris74]

Tobii Eye X Controller Version 1.0.0, using TobiiGazeSdk-CApi-4.0.3.627-Win32

How can I get the distance of the participants eyes to the monitor/tobii eye tracker with the Tobii Gaze SDK?

In the Tobii EyeX Engine a warning is displayed, when the eyes are too far away.

[Anders]

Hi Chris,
when you start tracking, the Gaze SDK will send data packets containing both the eye-gaze data and the eye positions data to your callback function.

The eye positions are available both as absolute positions (millimeters) and as trackbox-normalized positions. The developer’s guide in the Gaze SDK package can give you the details.

[Author]

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