title: Get the position of 3d objects in Facebook AR and changing them via script
body: <p>I have a 3d object which i want to "move" from A to B via script. I am not too sure how to go about it; I don't understand the Facebook documents. Just a short example as a start would be great.</p>
  
  <p>I assume something along the lines:</p>
  
  <pre><code>var object = Scene.root.find("object");
  var lastPosX = object.transform.positionX.lastValue;
  object.transform.positionX = //NOT SURE HOW TO PUT THE NEW POSITION
  </code></pre>