Hi Fabian,
First of all, the psychopy.org documentation is missing, but you can find generally accurate documentation here: http://www.isolver-solutions.com/iohubdocs/iohub/api_and_manual/device_details/eyetracker.html
Second, I successfully used PsychoPy and iohub with the iViewX API last year on a SMI RED500 system. I needed very minimal things from it, but once I got the eye-tracker talking to psychopy it looked like I could get it to do whatever I wanted. I was also able to port the whole thing to an EyeLink system a couple months ago with minimal difficulty.
The setup I was on had a separate computer for stimulus presentation and the eye-tracker control, and those two computers were connected on a closed network. I ran iViewX on the eye-tracker control computer and psychopy on the stimulus computer, and just having iViewX running was all I needed, everything else was python. Using iohub I connected to the eye-tracker and the basically just sampled from it in psychopy whenever I wanted to, built my own data structure for the info I got back, and saved what I needed in a CSV. Very simple, but it did what I needed it to do.
EDIT: I just remembered that I needed the API installed on the stimulus presentation computer to make it all work. Important detail!
You should be able to get something working with an iohub_config.yaml file, the relevant piece of which is at the bottom of this post. In your psychopy script, all you should need to start with is:
from psychopy.iohub import launchHubServer
io=launchHubServer(iohub_config_name='iohub_config.yaml')
tracker=io.devices.tracker
Then, when you want to run calibration:
calib = tracker.runSetupProcedure('CALIBRATION_STATE')
And then to start getting data, the following two lines:
tracker.setRecordingState(True)
tracker.enableEventReporting(True)
From there out you can just ask the eye-tracker for information whenever you need it. I only wanted fixation location, so every call after that is simply:
gpos = tracker.getLastGazePosition()
But there are getEvents functions which can get you much more complete information. Hope all that helps!
Here’s my iohub_config info:
SMI iView Config
- eyetracker.hw.smi.iviewx.EyeTracker:
name: tracker
save_events: True
stream_events: True
event_buffer_length: 1024
monitor_event_types: [ BinocularEyeSampleEvent, FixationStartEvent, FixationEndEvent]
network_settings:
send_ip_address: 169.254.101.116
send_port: 4444
receive_ip_address: 169.254.10.231
receive_port: 5555
runtime_settings:
sampling_rate: 250
track_eyes: BINOCULAR_AVERAGED
sample_filtering:
FILTER_ALL: FILTER_OFF
vog_settings:
pupil_measure_types: PUPIL_DIAMETER
calibration:
type: NINE_POINTS
auto_pace: Yes
pacing_speed: SLOW
screen_background_color: 125
target_type: CIRCLE_TARGET
target_attributes:
target_size: 30
target_color: 239
target_inner_color: RED
show_validation_accuracy_window: False
model_name: RED
