docs: function(theta, method, opt) {
      var that = this;
      var options = $.merge(this.config, opt || {}, {
        modes: [ 'polar' ]
      });
      var prop = opt.property || (method === "animate" ? 'end' : 'current');
      if(method === 'animate') {
        this.fx.animation.pause();
      }
      this.graph.eachNode(function(n) {
        var p = n.getPos(prop);
        p.theta += theta;
        if (p.theta < 0) {
          p.theta += Math.PI * 2;
        }
      });
      if (method == 'animate') {
        this.fx.animate(options);
      } else if (method == 'replot') {
        this.fx.plot();
        this.busy = false;
      }
    }