Data collection

Experimenters will most of the time want to know additional parameters when an action is triggered, such as what was the current position of the user when this object was visible, the orientation of the object etc. In order to collect useful data from experiments, signals have been introduced.

Signals are stripped down actions that will execute when entering a timeline action or exiting one.

To enable signals, the "execute on enter" and "execute on exit" must be selected. To do so use the experiment logger button on the bottom toolbar.

Once enabled, lightning bolts will be displayed around actions.

The front lightning bolt will be triggered on action enter; the back bolt on action exit.

A white bolt (1) will signify that the action will not trigger a signal. A yellow bolt (2) will. To activate or deactivate, simply mouse click on the bolt.

A shortcut (3) on the track allows enabling or disabling all the signals on a track.

The signal that will be send has to be selected using the experiment logger (1), configure logs (2) and click the change signal target button.

After selecting the action, the operation will succeed or fail.

Should the action you want to use as a signal contain non compatible code (Code that calls to the current track, that changes track parameters etc..), the console will notify you of the current problem (1) and (2).