title: Box2d Edgeshape doesn't rotate
body: <p>I'm using Libgdx's port of box2d.  I'm creating an edge shape, but it does not rotate upon collision with other polygons.  Why is this?</p>
  
  <p>Here's my code for setting up the edge shape.</p>
  
  <pre><code>float x = 3;
  float y = 10;
  BodyDef bodyDef = new BodyDef();
  bodyDef.type = BodyType.DynamicBody;
  bodyDef.position.set(x, y);
  
  Body body = this.world.createBody(bodyDef);
  MassData massdata = new MassData();
  massdata.center.set(1,1);
  massdata.mass = 10;
  body.setMassData(massdata);
  
  FixtureDef fixtureDef = new FixtureDef();
  EdgeShape shape = new EdgeShape();
  shape.set(0, 0, 2, 2);
  fixtureDef.shape= shape;
  fixtureDef.friction = 1;
  fixtureDef.restitution = .5f;
  fixtureDef.density = 10;
  body.createFixture(fixtureDef);
  </code></pre>