title: How to get the points around a voronoi cell?
body: <p>I am trying to get the points which form a polygon to fill it with some color. I have a set of points and then I calculate the Voronoi Diagram for it. The result is this:</p>
  
  <p><img src="https://i.stack.imgur.com/s87BO.png" alt="Voronoi Diagram"></p>
  
  <p>Green points are the points I define and blue points are the calculated vertices for the Voronoi Diagram. I want to fill the polygon which is generated by an specific green point so I need to know which points are around it to form the polygon and fill it.</p>
  
  <p>I have read about <a href="http://en.wikipedia.org/wiki/Gift_wrapping_algorithm%20%22%22" rel="nofollow noreferrer">Gift Wrapping Algorithm</a> and <a href="http://en.wikipedia.org/wiki/Convex_hull%20%22%22" rel="nofollow noreferrer">Convex Hull</a> but it doesn't seems to be what I need. Is there any algorithms to suit this need ? I am programming in C++ but any help in Java or C# would be helpful.</p>