title: UITapGestureRecognizer Point Coordinates
body: <p>I'm trying to implement a tap gesture recognizer into my app.
  Ideally I need for the tap gesture to return the <code>x</code> and <code>y</code> coordinates, so I can then create a variable to apply to a core image filter using a parameter which requires the <code>x</code> and <code>y</code> values. e.g, the user taps their nose, the gesture recognizer passes the coordinates(a variable, say, <code>nosePosition.x</code> and <code>nosePosition.y</code>) into a filter such as <code>CIBumpDistorion</code>, which need the <code>x</code> and <code>y</code> values for its <code>kCIInputCenterKey</code>.    </p>
  
  <p>I have tried using quite a few methods and moving/deleting code all to no avail. So if anyone has some advice I would be very grateful!</p>