def present_trial(imagepath): """ This is the main function used to run this demo. It is fed an imagepath and uses this to create a CommandableImageSprite offscreen. This Sprite is later moved onto the screen, where it hangs out until it is clicked. """ #create a tobii simulator tobii_sim = TobiiSimController(screen) #create a tobii sprite img = TobiiSprite( screen, spot.center, imagepath, tobii_sim, scale=IMAGE_SCALE) # this sets this sprite to follow eye gaze once it's first looked at img.enable_follow(); # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # Set up the updates, etc. # A queue of animation operations Q = DisplayQueue() # Draw a single animation in if you want! # What order do we draw sprites and things in? dos = OrderedUpdates(img) # Draw and update in this order ## Note the start time... start_time = time() # start recording the "eye gaze" data tobii_sim.start_tracking() ## The standard event loop in kelpy -- this loops infinitely to process interactions ## and throws events depending on what the user does trial_time = 5.0 for event in kelpy_standard_event_loop(screen, Q, dos, throw_null_events=True): #stay in the event loop until the trial time has passed if (time() - start_time > trial_time): print "trial end" break #can check if the image is being looked at #img.is_following = img.is_looked_at() #have the sprite follow the "eye gaze" img.process_follow(event) #stop collecting "eye gaze" data tobii_sim.stop_tracking()
os.makedirs(data_folder)
except OSError:
if not os.path.isdir(data_folder):
raise
data_file = data_folder + subject + '_' + session + '_' + session_time + '.csv'
##############################################
## Set up eye tracker
##############################################
## Set up pygame
screen, spot = initialize_kelpy(dimensions=(1920,1200))
if use_tobii_sim:
#create a tobii simulator
tobii_controller = TobiiSimController(screen)
else:
#create an actual tobii controller
tobii_controller = TobiiController(screen)
# code for when it's actually hooked up to the eye tracker
tobii_controller.wait_for_find_eyetracker(3)
#store tobii data in this file
tobii_controller.set_data_file(data_folder + subject + '_' + session + '_' + session_time + '.tsv')
#activate the first tobii eyetracker that was found
tobii_controller.activate(tobii_controller.eyetrackers.keys()[0])
MAX_DISPLAY_TIME = 5.0
##############################################
## Set up pygame
screen, spot = initialize_kelpy( dimensions=(800,600) )
OFF_LEFT = (spot.west)
##############################################
## setup and activate tobii
# this creates a TobiiController that calls the actual Tobii SDK code
#tobii_controller = TobiiController(screen)
tobii_controller = TobiiSimController(screen)
# this searches for the tobii eyetracker that is connected.
# It times out based on the given amount of seconds (the default is 1,000 seconds) and exits this program
#tobii_controller.wait_for_find_eyetracker(3)
#set the name of the data file that will output all of the Tobii data
tobii_controller.set_data_file('testdata.tsv')
#activate the first tobii eyetracker that was found
#tobii_controller.activate(tobii_controller.eyetrackers.keys()[0])
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Run a single trial
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def present_trial(imagepath):