title: how to calculate area of a polygon in iOS maps
body: <p>This question is on the similar lines of the below question. But i am asking this question since that question does not answer the requirements .</p>
  
  <p><a href="https://stackoverflow.com/questions/18314465/area-of-an-irregular-polygon-using-side-lengths-in-ios">Area of an irregular polygon using side lengths in ios</a></p>
  
  <p>overview of the app </p>
  
  <p>1 - User moves on his vehicle with his iPhone/iPad and we are supposed to plot his co-ordinates.</p>
  
  <p>2 - After he finishes his ride, we are suppose to draw a polygon covering all his co-ordinates</p>
  
  <p>3 - Calculate the area covered by the polygon.</p>
  
  <p>i have referred maps API and could not find any methods that calculates the area. </p>
  
  <p>Is there any 3rd party library / a mechanism which will help me in calculating the area of the polygon in iOS maps..</p>