code: function() {
          var redrawn = false;
          if (this.map) {
  
              // min/max Range may have changed
              this.inRange = this.calculateInRange();
  
              // map's center might not yet be set
              var extent = this.getExtent();
  
              if (extent && this.inRange && this.visibility) {
                  var zoomChanged = true;
                  this.moveTo(extent, zoomChanged, false);
                  this.events.triggerEvent("moveend",
                      {"zoomChanged": zoomChanged});
                  redrawn = true;
              }
          }
          return redrawn;
      }
docs: APIMethod: redraw
  Redraws the layer.  Returns true if the layer was redrawn, false if not.
  
  Returns:
  {Boolean} The layer was redrawn.