[open] Problems with 3.0.0 and eyetracking

Comments

• cyrusshaoul

  October 2015 edited 7:53PM

  Also, I forgot to mention that I have tested PyGaze independently on the exact same system, and it works just fine.

  -Cyrus
• cyrusshaoul

  October 2015 edited 7:53PM

  Hmm. After changing the runner to the "internal runner", It runs my experiment, but with different problems:

  1) It seems to be skipping the calibration/validation screens.
  2) It crashes on the first trial with this error:

  Stopped
  
  The experiment did not finish normally for the following reason:
  
  Unexpected error
  Details
  
  item-stack: experiment[run].practice_loop[run].block_sequence[run].block_loop[run].trial_sequence[run].pygaze_log[run]
  exception message: eval_text not found
  time: Thu Oct 22 15:44:44 2015
  exception type: AttributeError
  Traceback (also in debug window)
  
    File "/usr/lib/pymodules/python2.7/libqtopensesame/runners/inprocess_runner.py", line 38, in execute
      self.experiment.run()
    File "/usr/lib/pymodules/python2.7/libopensesame/experiment.py", line 390, in run
      self.items.execute(self.var.start)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 95, in execute
      self.run(name)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/lib/pymodules/python2.7/libopensesame/sequence.py", line 49, in run
      self.experiment.items.run(_item)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/lib/pymodules/python2.7/libopensesame/loop.py", line 143, in run
      self.experiment.items.execute(self.var.item)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 95, in execute
      self.run(name)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/lib/pymodules/python2.7/libopensesame/sequence.py", line 49, in run
      self.experiment.items.run(_item)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/lib/pymodules/python2.7/libopensesame/loop.py", line 143, in run
      self.experiment.items.execute(self.var.item)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 95, in execute
      self.run(name)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/lib/pymodules/python2.7/libopensesame/sequence.py", line 49, in run
      self.experiment.items.run(_item)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/share/opensesame/plugins/pygaze_log/pygaze_log.py", line 60, in run
      self.experiment.pygaze_eyetracker.log(self.eval_text(msg))
    File "/usr/lib/pymodules/python2.7/libopensesame/item.py", line 280, in __getattr__
      raise AttributeError(u'%s not found' % var)
  AttributeError: eval_text not found
  

  I am new to OpenSesame, but this seems to be a problem with the pygaze plugin... Could it be that the pygaze plugins are incompatible with 3.0.0?

  Thanks,

  Cyrus
• sebastiaan

  October 2015 edited 7:53PM

  Hi Cyrus,

  PyGaze had to be updated to work with OpenSesame 3.0 (which should be documented better, come to think of it). You can get the latest snapshot from here:

  • https://github.com/smathot/PyGaze/releases

  If you're using Expyriment, you also need to update it to 0.8.0. Otherwise you get funny-looking circles.

  It's a bit of a hassle, I know. I'll see if I can update all the packages in the repository soon, so that it doesn't have to be done manually.

  Cheers,
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• cyrusshaoul

  October 2015 edited 7:53PM

  Thanks, Sebastian! I really appreciate the quick reply. I will test that out and let you know how it goes.

  Yours,

  Cyrus
• cyrusshaoul

  October 2015 edited 7:53PM

  Question: Should I checkout the os3 branch of your PyGaze fork to test this with 3.0.0?
• cyrusshaoul

  October 2015 edited 7:53PM

  I got the os3 branch of PyGaze, and now the calibration phase starts. After calibration, my experiment doesn't work.

  I am getting this error:

  
  
  In [1]: Expyriment 0.8.0 (Python 2.7.6) 
  openexp.sampler._legacy.init_sound(): sampling freq = 48000, buffer size = 1024
  openexp.sampler._legacy.init_sound(): mixer already initialized, closing
  experiment.run(): experiment started at Thu Oct 22 17:17:53 2015
  Attention: EyeLink logfile renamed to /home/cyrus/src/Testing.OpenSesame.with.PyGaze/sub_0.edf
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/pygaze/_eyetracker/eyelinkgraphics.py", line 523, in draw_image_line
      self.imagebuffer.tostring(), self.size, 'RGBX')
  ValueError: String length does not equal format and resolution size
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/pygaze/_eyetracker/eyelinkgraphics.py", line 523, in draw_image_line
      self.imagebuffer.tostring(), self.size, 'RGBX')
  ValueError: String length does not equal format and resolution size
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/pygaze/_eyetracker/eyelinkgraphics.py", line 523, in draw_image_line
      self.imagebuffer.tostring(), self.size, 'RGBX')
  ValueError: String length does not equal format and resolution size
  
  
• cyrusshaoul

  October 2015 edited 7:53PM

  Not sure what the above error was, but I finally got something working.

  The only way I could get it to work was to remove the pygaze_drift-correction plugin from my sequence.

  Is that working for you?

  Thanks so much,

  Cyrus
• sebastiaan

  October 2015 edited October 2015

  Hi Cyrus,

  I updated the Cogsci PPA, so at least you should have all the up-to-date versions without needing to do any manual hacking. Let me know if you still encounter issues.

  Cheers,
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• cyrusshaoul

  November 2015 edited 7:53PM

  Hi All,

  I am getting somewhere, but I wanted to report a problem. Whenever I run a eye-tracking experiment in OS 3.0.1, the second time I try to run it, I get this error:

  Unexpected error
  
  item-stack: experiment[run].pygaze_init[run]
  exception message: Link terminated
  time: Tue Nov  3 18:18:40 2015
  exception type: RuntimeError
  
  Traceback:
    File "/usr/lib/pymodules/python2.7/libqtopensesame/runners/inprocess_runner.py", line 38, in execute
      self.experiment.run()
    File "/usr/lib/pymodules/python2.7/libopensesame/experiment.py", line 390, in run
      self.items.execute(self.var.start)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 95, in execute
      self.run(name)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/lib/pymodules/python2.7/libopensesame/sequence.py", line 49, in run
      self.experiment.items.run(_item)
    File "/usr/lib/pymodules/python2.7/libopensesame/item_store.py", line 110, in run
      self[name].run()
    File "/usr/share/opensesame/plugins/pygaze_init/pygaze_init.py", line 197, in run
      **kwdict)
    File "/usr/local/lib/python2.7/dist-packages/pygaze/eyetracker.py", line 68, in __init__
      self.__class__.__init__(self, display, **args)
    File "/usr/local/lib/python2.7/dist-packages/pygaze/_eyetracker/libeyelink.py", line 166, in __init__
      self.eyelink_graphics = EyelinkGraphics(self, _eyelink)
    File "/usr/local/lib/python2.7/dist-packages/pygaze/_eyetracker/eyelinkgraphics.py", line 112, in __init__
      self.set_tracker(tracker)
    File "/usr/local/lib/python2.7/dist-packages/pygaze/_eyetracker/eyelinkgraphics.py", line 194, in set_tracker
      self.tracker.sendCommand("enable_search_limits=YES")
  RuntimeError: Link terminated
  

  I have to kill OpenSesame and run it again for eye tracking to work. Is there a way around this?

  Thanks,

  -Cyrus