Centering away from [0 0]

Is there a way to change what coordinates the 'c' key brings the eye position to during a task? It defaults to [0 0], but what if, for example, the fixation point is not at the center of the screen?

And if there's a way to do this, is it compatible with the 2D spatial transformation calibration?

The 'c' key is implemented as a hotkey like the following.

hotkey('c', 'forced_eye_drift_correction([0 0],1);');

[0 0] is the coordinates of the new center (in degrees) and 1 indicates the first eye signal (2 is the second eye). So overwrite it (i.e., define it again in your timing script) with the coordinates you want.

Thanks Jaewon. Presumably this preserves (and only slightly shifts) the 2D spatial transformation done in eye calibration?

Yes. The grid will be the same as before but just translated relatively to the new origin.

Great, thank you!