[open] How to use Tobii TX300 with openseasme

Comments

• Josh

  March 2015 edited 8:33AM

  Hi Krishnan, welcome to the forum!

  You won't have to be a programming expert, but it may be wise to just go through these tutorials: http://osdoc.cogsci.nl/tutorials/ (especially since you not only need this knowledge to get your Tobii to work, but to implement your experiment design as well).

  Next, there are pygaze instructions here: http://osdoc.cogsci.nl/devices/pygaze/

  What it will come down to, is to drag and drop some pygaze items into the overview window (such as an item that 'starts up' your eyetracker, and one that starts recording, one that logs what has been recorded etc. etc.) and put some code in between (in the form of an inline_script item) ; the latter is where you can do whatever you want with the recorded eye position coordinates (e.g. alter what is on screen based on where people look). Of course you don't have to do anything with the recorded eye position; perhaps you just want to display some static stimuli.
  As you can imagine, we can't immediately program your whole experiment for you, so I suggest going through some tutorials first and let us know if you encounter any problems!

  Good luck!

  Cheers,
  Josh
• krishnan

  March 2015 edited 8:33AM

  Thanks Josh for your help! I shall try this out. And, I shall get back to the forum with my experience.

  Thanks again for your time,
  Regards.
  Krish
• krishnan

  April 2015 edited April 2015

  Dear Josh,
  I followed your instructions. however, I am getting some errors as shown below:

  Python 2.7.8
  Type "help()", "copyright()", "credits()" or "license()" for more information.
  Type "modules()" for details about installed modules and version information.
  Use the "print([msg])" statement in inline_script items to print to this debug window.
  >>> 
  Starting experiment as ExperimentProcess-1
  Expyriment  (Revision ; Python 2.7.8) 
  File: opensesame.exe (6a8b7f)
  openexp.sampler._legacy.init_sound(): sampling freq = 48000, buffer size = 1024
  openexp.sampler._legacy.init_sound(): mixer already initialized, closing
  experiment.init_log(): using 'E:/Python/Trials/subject-0.csv' as logfile (utf-8)
  experiment.run(): experiment started at Tue Apr 14 11:46:06 2015
  
  Unexpected error
  
  line: 6
  exception message: No module named _tetiopy27
  exception type: ImportError
  
  Traceback:
    File "dist\libqtopensesame\misc\process.py", line 139, in run
    File "dist\libopensesame\experiment.py", line 344, in run
    File "dist\libopensesame\sequence.py", line 47, in run
    File "C:\Program Files (x86)\OpenSesame\plugins\pygaze_init\pygaze_init.py", line 198, in run
    File "dist\pygaze\eyetracker.py", line 86, in __init__
    File "dist\pygaze\_eyetracker\libtobii.py", line 55, in <module>
    File "C:\Program Files (x86)\OpenSesame\tobii\eye_tracking_io\__init__.py", line 5, in <module>
    File "C:\Program Files (x86)\OpenSesame\tobii\eye_tracking_io\_native\__init__.py", line 6, in <module>
  ImportError: No module named _tetiopy27
  
  
  >>> 
  

  Any luck?!
  Thank you.

  Krish
• krishnan

  April 2015 edited April 2015

  Dear Josh,

  The file referring to the error is as follows:

  
  import sys
  import platform
  
  if sys.version_info[0:2] == (2, 7):
      import _tetiopy27
      tetio = _tetiopy27
  else:
      raise Exception("Unsupported python runtime version, tobii.eye_tracking_io requires python 2.7")
  
  #
  # Internal class
  #
  class BoundHandler(object):
      def __init__(self, callback, *args):
          self._callback = callback
          self._args = args
  
      def __call__(self, opcode, error, payload):
          try:
              self._callback(opcode, error, payload, *self._args)
          except Exception, ex:
              print "Exception during BoundHandler.__call__(): ", ex
  
• krishnan

  April 2015 edited April 2015

  import sys
  import platform
  
  if sys.version_info[0:2] == (2, 7):
      import _tetiopy27
      tetio = _tetiopy27
  else:
      raise Exception("Unsupported python runtime version, tobii.eye_tracking_io requires python 2.7")
  
  #
  # Internal class
  #
  class BoundHandler(object):
      def __init__(self, callback, *args):
          self._callback = callback
          self._args = args
  
      def __call__(self, opcode, error, payload):
          try:
              self._callback(opcode, error, payload, *self._args)
          except Exception, ex:
              print "Exception during BoundHandler.__call__(): ", ex
  
• Edwin

  April 2015 edited 8:33AM

  Hi,

  There is a very strong possibility that you did not install the Tobii SDK. Without this, you won't be able to run anything!

  For information on how to install Tobii's Python SDK, please refer to the PyGaze website.

  Good luck!
• krishnan

  April 2015 edited April 2015

  Hi there!
  I have followed all the instructions on installing the Tobii package (http://www.pygaze.org/installation/#tobii). Despite this, the following error continue to appear:

  >>> 
  Starting experiment as ExperimentProcess-2
  Expyriment  (Revision ; Python 2.7.8) 
  File: opensesame.exe (6a8b7f)
  openexp.sampler._legacy.init_sound(): sampling freq = 48000, buffer size = 1024
  openexp.sampler._legacy.init_sound(): mixer already initialized, closing
  experiment.init_log(): using 'E:/Python/Trials/subject-0.csv' as logfile (utf-8)
  experiment.run(): experiment started at Wed Apr 29 10:51:19 2015
  

  Unexpected error
  
  line: 6
  exception message: No module named _tetiopy27
  exception type: ImportError
  
  Traceback:
    File "dist\libqtopensesame\misc\process.py", line 139, in run
    File "dist\libopensesame\experiment.py", line 344, in run
    File "dist\libopensesame\sequence.py", line 47, in run
    File "C:\Program Files (x86)\OpenSesame\plugins\pygaze_init\pygaze_init.py", line 198, in run
    File "dist\pygaze\eyetracker.py", line 86, in __init__
    File "dist\pygaze\_eyetracker\libtobii.py", line 55, in <module>
    File "C:\Program Files (x86)\OpenSesame\tobii\eye_tracking_io\__init__.py", line 5, in <module>
    File "C:\Program Files (x86)\OpenSesame\tobii\eye_tracking_io\_native\__init__.py", line 6, in <module>
  ImportError: No module named _tetiopy27
  

  Any help?!
  Krishnan
• sebastiaan

  April 2015 edited 8:33AM

  Hi Krishnan,

  As Edwin said, you're probably missing (part of) the Tobii SDK. I'm not familiar with it myself, but this discussion on the PyschoPy list seems relevant:

  • https://groups.google.com/forum/#!topic/psychopy-users/6gYNtTNr4Ec

  Cheers,
  Sebastiaan

  
  
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