title: Manually insert mesh into CGAL with points and cells
body: <p>I have a triangular mesh written down on a piece of paper with a bunch of nodes and their connectivity. I'd like to put in this mesh into CGAL, to, e.g., play around with Lloyd smoothing, computing the Voronoi diagram etc.</p>
  
  <p>I'm looking at <a href="http://doc.cgal.org/latest/Mesh_2/Mesh_2_2mesh_optimization_8cpp-example.html" rel="nofollow">Mesh_2/mesh_optimization.cpp
  </a> which apparently allows the inserting of points</p>
  
  
  
  <pre><code>CDT cdt;
  Vertex_handle va = cdt.insert(Point(-2,0));
  Vertex_handle vb = cdt.insert(Point(0,-2));
  Vertex_handle vc = cdt.insert(Point(2,0));
  Vertex_handle vd = cdt.insert(Point(0,1));
  </code></pre>
  
  <p>but not cells (triangles).</p>
  
  <p>Any hint on where to start?</p>