code: function(){
      var labelType = this.config.Label.type;
      if(labelType != 'Native') {
        var that = this;
        this.graph.eachNode(function(n) { that.labels.hideLabel(n, false); });
      }
      this.compute();
      this.plot();
    }
docs: /*
  Method: refresh
  
  Computes positions and plots the tree.