title: A read on mesh algorithm and mesh library
body: <p>I am interested to read and understand the 2D mesh algorithms. A search on Google reveals <a href="http://www.google.com.my/search?rlz=1C1GGLS_enMY291&amp;sourceid=chrome&amp;ie=UTF-8&amp;q=meshing+algorithm" rel="noreferrer">a lot of papers and sources</a>, however most are too academic and not much on beginner's side. </p>
  
  <p>So, would anyone here recommend any reading sources ( suitable for the beginners), or open source implementation that I can learn from the start? Thanks.</p>
  
  <p>Also, compared to triangular mesh generation, I have more interest in quadrilateral mesh and mix mesh( quad and tri combined).</p>