eyetracker.add

description

Adds elements to be tracked.

syntax

getEyeTracker(ELEMENT_NAME).add(element1, element2, ...)
  • element1 :
  • element2 :
  • ... :

notes

  • Any commands passed to callback will be executed on every cycle (or span of cycles) where the estimated looks fall on one of the specified elements.

  • Once you add elements to the tracker and use start, the tracker will report 1 (looked-at) or 0 (not looked-at) for every element on every cycle, which will be sent to your PHP script at the end of the trial.

  • Looked at element also receive the CSS class eyetracked.

since

PennController 1.8

example(s) 


@newTrial( newButton("Start").print().wait(newEyeTracker().test.ready()) )
@
@newTrial(
@    newEyeTracker("tracker")
@        .calibrate(70)
@        .train(true)
@    ,
@    newButton("Click here first").print("20vw","40vh").wait().remove(), 
@    newButton("Now Click here").print("60vw","40vh").wait().remove()
@    ,
@    newText("Left").css("padding","20vw").print("20vw", "40vh"),
@    newText("Right").css("padding","20vw").print("60vw", "40vh")
@    ,
@    getEyeTracker("tracker")
@        .stopTraining()
$        .add( getText("Left") , getText("Right") )
@    ,
@    newSelector().add( getText("Left") , getText("Right") ).wait()
@)
  • Will add Left and Right as tracked elements.