title: Core Plot: Data point labels shown, or when data points touched?
body: <p>Is there a way using Core Plot to have periodic labels assigned to data plots?  Such as 10-20 labels listed across my plot points.</p>
  
  <p>Here is an example (mockup) of what I am hoping to do:
  <img src="https://i.stack.imgur.com/tgb7C.jpg" alt="alt text"></p>
  
  <p>Is it possible to do this when the graph loads, or maybe when you swipe across the graph you see the data points showing their call out?</p>