title: iOS Advanced Gestures: Getting Swipe Direction Vector
body: <p>Looking through the <a href="https://developer.apple.com/library/ios/DOCUMENTATION/UIKit/Reference/UIGestureRecognizer_Class/Reference/Reference.html#//apple_ref/occ/instm/UIGestureRecognizer/locationOfTouch%3ainView%3a" rel="nofollow">documentation</a>, it seems that the new advanced gestures API doesn't determine the direction of a swipe beyond the basic { left, right, up, down }.</p>
  
  <p>I need the start point of the swipe and the direction.</p>
  
  <p>Is there anyway to retrieve this other than coding my own advanced gesture library from scratch out the basic gestures?</p>
  
  <p>And if this is my only option, could anyone point me to some open source code that does this?</p>