marcus-nystrom / Titta

Python and PsychoPy interface to Tobii eye trackers using Tobii Pro SDK
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data output columns in titta #45

Closed amandasaksida closed 1 year ago

amandasaksida commented 1 year ago

Hi, i have request regarding the data columns from Tobii Pro Nano. It is unclear what is the current list of the output columns from Tobii. They are only defined in the Tobii_dummy.py files of titta, and they differ in the previous and the current versions. I list both versions below. Given that we want to give an instant feedback about the pupil position and validity during the experiment, we have to define the columns from which the data is taken. So far i have tried to define the column using the list from the current (and the old) version, but it doesn't seem to be giving me the right data. Is it possible to obtain the correct version of the data output column, and where do we search for them? Thanks in advance, Amanda

Current version: [ 'device_time_stamp', 'system_time_stamp', 'left_gaze_point_on_display_area_x', 'left_gaze_point_on_display_area_y', 'left_gaze_point_in_user_coordinates_x', 'left_gaze_point_in_user_coordinates_y', 'left_gaze_point_in_user_coordinates_z', 'left_gaze_point_valid', 'left_gaze_point_available', 'left_pupil_diameter', 'left_pupil_valid', 'left_pupil_available', 'left_gaze_origin_in_user_coordinates_x', 'left_gaze_origin_in_user_coordinates_y', 'left_gaze_origin_in_user_coordinates_z', 'left_gaze_origin_in_track_box_coordinates_x', 'left_gaze_origin_in_track_box_coordinates_y', 'left_gaze_origin_in_track_box_coordinates_z', 'left_gaze_origin_valid', 'left_gaze_origin_available', 'left_eye_openness_diameter', 'left_eye_openness_valid', 'left_eye_openness_available', 'right_gaze_point_on_display_area_x', 'right_gaze_point_on_display_area_y', 'right_gaze_point_in_user_coordinates_x', 'right_gaze_point_in_user_coordinates_y', 'right_gaze_point_in_user_coordinates_z', 'right_gaze_point_valid', 'right_gaze_point_available', 'right_pupil_diameter', 'right_pupil_valid', 'right_pupil_available', 'right_gaze_origin_in_user_coordinates_x', 'right_gaze_origin_in_user_coordinates_y', 'right_gaze_origin_in_user_coordinates_z', 'right_gaze_origin_in_track_box_coordinates_x', 'right_gaze_origin_in_track_box_coordinates_y', 'right_gaze_origin_in_track_box_coordinates_z', 'right_gaze_origin_valid', 'right_gaze_origin_available', 'right_eye_openness_diameter', 'right_eye_openness_valid', 'right_eye_openness_available' ]

Previous version: [ 'device_time_stamp', 'system_time_stamp', 'left_gaze_point_on_display_area_x', 'left_gaze_point_on_display_area_y', 'left_gaze_point_in_user_coordinate_system_x', 'left_gaze_point_in_user_coordinate_system_y', 'left_gaze_point_in_user_coordinate_system_z', 'left_gaze_origin_in_trackbox_coordinate_system_x', 'left_gaze_origin_in_trackbox_coordinate_system_y', 'left_gaze_origin_in_trackbox_coordinate_system_z', 'left_gaze_origin_in_user_coordinate_system_x', 'left_gaze_origin_in_user_coordinate_system_y', 'left_gaze_origin_in_user_coordinate_system_z', 'left_pupil_diameter', 'left_pupil_validity', 'left_gaze_origin_validity', 'left_gaze_point_validity', 'right_gaze_point_on_display_area_x', 'right_gaze_point_on_display_area_y', 'right_gaze_point_in_user_coordinate_system_x', 'right_gaze_point_in_user_coordinate_system_y', 'right_gaze_point_in_user_coordinate_system_z', 'right_gaze_origin_in_trackbox_coordinate_system_x', 'right_gaze_origin_in_trackbox_coordinate_system_y', 'right_gaze_origin_in_trackbox_coordinate_system_z', 'right_gaze_origin_in_user_coordinate_system_x', 'right_gaze_origin_in_user_coordinate_system_y', 'right_gaze_origin_in_user_coordinate_system_z', 'right_pupil_diameter', 'right_pupil_validity', 'right_gaze_origin_validity', 'right_gaze_point_validity' ]

marcus-nystrom commented 1 year ago

The keys in the current version are correct. Use them. Look at the read_my.py demo to see how you access the data in real time, for instance:

Get the latest sample

sample = tracker.buffer.peek_N('gaze', 1)

Extract stuff from this sample

print(sample['left_gaze_point_on_display_area_x']) print(sample['right_pupil_diameter'])

On Fri, Oct 6, 2023 at 2:22 PM amandasaksida @.***> wrote:

Hi, i have request regarding the data columns from Tobii Pro Nano. It is unclear what is the current list of the output columns from Tobii. They are only defined in the Tobii_dummy.py files of titta, and they differ in the previous and the current versions. I list both versions below. Given that we want to give an instant feedback about the pupil position and validity during the experiment, we have to define the columns from which the data is taken. So far i have tried to define the column using the list from the current (and the old) version, but it doesn't seem to be giving me the right data. Is it possible to obtain the correct version of the data output column, and where do we search for them? Thanks in advance, Amanda

Current version: [ 'device_time_stamp', 'system_time_stamp', 'left_gaze_point_on_display_area_x', 'left_gaze_point_on_display_area_y', 'left_gaze_point_in_user_coordinates_x', 'left_gaze_point_in_user_coordinates_y', 'left_gaze_point_in_user_coordinates_z', 'left_gaze_point_valid', 'left_gaze_point_available', 'left_pupil_diameter', 'left_pupil_valid', 'left_pupil_available', 'left_gaze_origin_in_user_coordinates_x', 'left_gaze_origin_in_user_coordinates_y', 'left_gaze_origin_in_user_coordinates_z', 'left_gaze_origin_in_track_box_coordinates_x', 'left_gaze_origin_in_track_box_coordinates_y', 'left_gaze_origin_in_track_box_coordinates_z', 'left_gaze_origin_valid', 'left_gaze_origin_available', 'left_eye_openness_diameter', 'left_eye_openness_valid', 'left_eye_openness_available', 'right_gaze_point_on_display_area_x', 'right_gaze_point_on_display_area_y', 'right_gaze_point_in_user_coordinates_x', 'right_gaze_point_in_user_coordinates_y', 'right_gaze_point_in_user_coordinates_z', 'right_gaze_point_valid', 'right_gaze_point_available', 'right_pupil_diameter', 'right_pupil_valid', 'right_pupil_available', 'right_gaze_origin_in_user_coordinates_x', 'right_gaze_origin_in_user_coordinates_y', 'right_gaze_origin_in_user_coordinates_z', 'right_gaze_origin_in_track_box_coordinates_x', 'right_gaze_origin_in_track_box_coordinates_y', 'right_gaze_origin_in_track_box_coordinates_z', 'right_gaze_origin_valid', 'right_gaze_origin_available', 'right_eye_openness_diameter', 'right_eye_openness_valid', 'right_eye_openness_available' ]

Previous version: [ 'device_time_stamp', 'system_time_stamp', 'left_gaze_point_on_display_area_x', 'left_gaze_point_on_display_area_y', 'left_gaze_point_in_user_coordinate_system_x', 'left_gaze_point_in_user_coordinate_system_y', 'left_gaze_point_in_user_coordinate_system_z', 'left_gaze_origin_in_trackbox_coordinate_system_x', 'left_gaze_origin_in_trackbox_coordinate_system_y', 'left_gaze_origin_in_trackbox_coordinate_system_z', 'left_gaze_origin_in_user_coordinate_system_x', 'left_gaze_origin_in_user_coordinate_system_y', 'left_gaze_origin_in_user_coordinate_system_z', 'left_pupil_diameter', 'left_pupil_validity', 'left_gaze_origin_validity', 'left_gaze_point_validity', 'right_gaze_point_on_display_area_x', 'right_gaze_point_on_display_area_y', 'right_gaze_point_in_user_coordinate_system_x', 'right_gaze_point_in_user_coordinate_system_y', 'right_gaze_point_in_user_coordinate_system_z', 'right_gaze_origin_in_trackbox_coordinate_system_x', 'right_gaze_origin_in_trackbox_coordinate_system_y', 'right_gaze_origin_in_trackbox_coordinate_system_z', 'right_gaze_origin_in_user_coordinate_system_x', 'right_gaze_origin_in_user_coordinate_system_y', 'right_gaze_origin_in_user_coordinate_system_z', 'right_pupil_diameter', 'right_pupil_validity', 'right_gaze_origin_validity', 'right_gaze_point_validity' ]

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