How to reference the position of a scene object in a script?

Thanks, Sir Qu3ntin,

I will give these a try

Assuming your two images have ScreenTransform components on them, you can do something like below. (You can pull it out of the onUpdate function and just call it when necessary if you don't need it to constantly compute distance every frame).

Since the points are being computed in screen space, they are limited to values between 0 and 1, so that affects the calculated distance result (i.e. it's not in centimeters). 

The anchorSpaceToScreenSpace() function simply converts one coordinate system to another (I nabbed that bit from one of the lens studio template scripts at some point). 

//@input Component.ScreenTransform obj1
//@input Component.ScreenTransform obj2

function onUpdate() {
    var center1 = script.obj1.anchors.getCenter();
    screenPos1 = anchorSpaceToScreenSpace(center1);
    var center2 = script.obj2.anchors.getCenter();
    screenPos2 = anchorSpaceToScreenSpace(center2);
    var dist = center1.distance(center2);

    //then do something with dist
}

function anchorSpaceToScreenSpace(point) {
  return new vec2( 
  (point.x * 0.5) + 0.5, 
  (-point.y * 0.5) + 0.5
  );
}

var updateEvent = script.createEvent("UpdateEvent");
updateEvent.bind(onUpdate);