title: Use javascript change a dom's translate3d not smooth then native slide behavior
body: <p>I wrote a web app use touchevent to change a dom's position,on touchstart </p>
  
  <pre><code> start_position = [event.pageX,event.pageY]
  </code></pre>
  
  <p>at sometime add touchmove event,every trigger,change Translate3D in requestAnimationFrame's function</p>
  
  <pre><code> current_position = [event.pageX,event.pageY]
   dom.style.webkitTransform = 'translate3d('+Math.round(offset*(i-1)+self.current_pos[0]-self.start_pos[0])+'px,0,0)'
  </code></pre>
  
  <p>I think there something else that I don't know to resolve this problem to make animation smooth..</p>
  
  <p>I search iScroll's source code,but can't understand..
  <a href="https://github.com/cubiq/iscroll/blob/master/src/utils.js" rel="nofollow">https://github.com/cubiq/iscroll/blob/master/src/utils.js</a></p>