whole_func_string: function _createOverlay() {
          this.overlay = new LayoutController({
              layout: OverlayLayout,
              layoutOptions: {
                  itemSize: this.options.wheelLayout.itemSize
              },
              dataSource: this._overlayRenderables
          });
          this.add(this.overlay);
      }
func_code_string: function _createOverlay() {
          this.overlay = new LayoutController({
              layout: OverlayLayout,
              layoutOptions: {
                  itemSize: this.options.wheelLayout.itemSize
              },
              dataSource: this._overlayRenderables
          });
          this.add(this.overlay);
      }
func_documentation_string: Creates the overlay LayoutController