title: How to Zoom in/out an UIView based on Pan gesture?
body: <p>I would like to Zoom in/out an <code>UIView</code> based on the <code>UIPanGesture</code>. I don't know how to convert <code>translationInView</code> to Scaling parameter. (I know how to zoom in/out based on pinch gesture).</p>
  
  <p>I'm trying to figure out how to do this, but no such luck so far.</p>