How to get only one gaze point?

[H. Moon]

Hi. I’m new in C#.

In my case, I want to analyze gaze point using C# DLL file.
And I am trying to get only one gaze point (x, y).

For instance, in the GUI, if I click a button, the current gaze point shows in the edit box.

using Tobii.Interaction;
public class Program
{
    public static double Main()
    {
        var host = new Host();
        var fixationDataStream = host.Streams.CreateFixationDataStream();
        
        var fixationPointX = 0.0 // initialization
        var fixationPointY = 0.0 

        fixationDataStream.Next += (o, fixation) =>
        {
            // fixationPointX = fixation.Data.X;
            fixationPointX = 1.0
            fixationPointY = fixation.Data.Y;
        }

        return fixationPointX; (or fixationPointY)
    }
}

Above code returns 0.0 (I guess this result is the initialize value).
As I expected it should be 1.0.
And I know that fixationDataStream.Next += (o, fixation) => this loop(?) doesn’t work when it export as DLL.

I already checked the github samples, but it doesn’t helpful to me.

please help me..

[Grant [Tobii]]

Hi @h-moon and thanks for your query. It looks like you are using the older Tobii Core SDK C# SDK for your project? This software has been deprecated quite some time and has now been replaced with the Tobii Interaction Library, which also supports the C# language.

We provide a very detailed tutorial and several samples of this new API available @ https://developer.tobii.com/consumer-eye-trackers-interaction-library-getting-started/

If you kindly go through the C# section on this page and get back to us if you still are experiencing issues. Best Wishes.

[Author]

Posts