It does the circle packing, calculates the crease pattern, and if you use that stick figure that I just showed -- which you can kind of tell, it's a deer, it's got antlers -- you'll get this crease pattern.
On slaže krugove, računa uzorak savijanja, a ako koristite onaj štapićasti  lik koji sam vam upravo pokazao -- za koji nekako možete reći da  je jelen, jer ima rogove -- dobti ćete ovaj uzorak savijanja.