[solved] Task with touchscreen

Comments

• sebastiaan

  September 2011 edited 12:57PM

  Hi Waz,

  Welcome and thank you for your interest in OpenSesame!

  In order to determine whether a participant has clicked on (or touched) a certain object you will need to a little coding, but nothing terribly complicated. Another user already asked a similar question, and I made a simple demonstration experiment. Hopefully this will get you started.
  mouse.opensesame.tar.gz

  Basically, you need to create a mouse object in an inline_script item, get the coordinates and use these to determine which object the participant has selected. This is shown in the demonstration experiment in more detail, but here's the general idea:
  from openexp.mouse import mouse # import the mouse class
my_mouse = mouse(self.experiment) # create a mouse object
my_mouse.set_visible(True) # make the cursor visible
button, pos, time = my_mouse.get_click() # get a mouseclick
x, y = pos # get the coordinates (pos is a tuple)
  You can find a complete function list here:
  http://osdoc.cogsci.nl/python-inline-code/mouse-functions

  There's one thing that can be problematic. On some systems the mouse cursor doesn't appear (it works, but the cursor is hidden). Come to think of it, this doesn't really matter for a touchscreen, but if this becomes problematic, let me know.

  Kindest regards,
  Sebastiaan

  
  
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• sebastiaan

  January 2012 edited 12:57PM

  Inactive, marking as solved.

  
  
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