title: Efficient Delaunay triangulation
body: <p>I'm looking for a .NET implementation which builds Delaunay triangulation from set of points.</p>
  
  <p>I have already tested couple of implementations but they all worked only for small amount of points (up to 20,000).</p>
  
  <p>I need something that can handle 500,000 points in reasonable time.</p>