title: Alpha shape (concave hull) algorithm in C#
body: <p>I'm in need of concave algorithm to outline shape from set of points, is there implementation in AForge.NET that I could use, I have read somewhere that AForge.NET has implementation of that algorithm but I can't find it in documentation.</p>
  
  <p>Any help would be greatly appreciated,</p>
  
  <p>Best regards,</p>
  
  <p>Daniel</p>