EyeTrackingOperations

Provides static methods for searching for eye trackers as well as connecting directly to a specific eye tracker. The eye tracker object(s) returned can then be used to manipulate the eye trackers and read eye tracker data. This is the entry point for the SDK users.

Contents

Tobii = EyeTrackingOperations()

Get System Time Stamp

Retrieves the time stamp from the system clock in microseconds.

Returns: int64 time stamp in microseconds

%% Get System Time Stamp
Tobii = EyeTrackingOperations();

time_stamp_us = Tobii.get_system_time_stamp();

Get SDK Version

Retrieves the current version of the SDK.

Returns: string with version of the sdk

%% Get SDK Version
Tobii = EyeTrackingOperations();

version = Tobii.get_sdk_version();

disp(['Current SDK Version: ',version])

Find All Eye Trackers

Finds eye trackers connected to the computer or the network. Please note that subsequent calls to find_all_eyetrackers() may return the eye trackers in a different order.

Returns: array with instances of the class EyeTracker

%% Find All EyeTrackers
clear;

Tobii = EyeTrackingOperations();

eyetrackers = Tobii.find_all_eyetrackers();

for i=1:size(eyetrackers)
   disp(['Address:',eyetrackers(i).Address])
   disp(['Name:',eyetrackers(i).Name])
   disp(['Serial Number:',eyetrackers(i).SerialNumber])
   disp(['Model:',eyetrackers(i).Model])
   disp(['Firmware Version:',eyetrackers(i).FirmwareVersion])
   disp(['Runtime Version:',eyetrackers(i).RuntimeVersion])
   fprintf('\n')
end

GetEyeTracker

Gets an eye tracker object that has the specified adress.

Parameters: string with address of the desired eye tracker. Returns: instance of the class EyeTracker

%% Get EyeTracker
clear;

Tobii = EyeTrackingOperations();

eyetracker_address = 'Address of the desired device';
% Example:
% eyetracker_address = 'tet-tcp://10.46.32.51';
try
    eyetracker = Tobii.get_eyetracker(eyetracker_address);
catch ME
    if (strcmp(ME.identifier,'EyeTrackerGet:error204'))
        fprintf('Unable to connect eye tracker.\n');
        return
    end
end

disp(['Address:',eyetracker.Address])
disp(['Name:',eyetracker.Name])
disp(['Serial Number:',eyetracker.SerialNumber])
disp(['Model:',eyetracker.Model])
disp(['Firmware Version:',eyetracker.FirmwareVersion])
disp(['Runtime Version:',eyetracker.RuntimeVersion])

See Also

EyeTracker

Version

1.10.1.24

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Published with MATLAB® R2021a