Home Forums Legacy SDKs Degrees of Visual Angle


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    Robert Bixler


    I was wondering how to receive eye gaze positions as degrees of visual angle, or how to convert to degrees of visual angle using the eye gaze information and eye position information.

    Is there a way to do this?


    Hi Robert,
    sure, it can be done. It’s a classic trigonometry problem in 3D space: take the two eye-gaze points that you want the angle between and and eye position. Then the angle can be computed using the law of cosines.

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