code: public void setMiniMapVisible(boolean miniMapVisible)
      {
          boolean old = this.isMiniMapVisible();
          this.miniMapVisible = miniMapVisible;
          miniMap.setVisible(miniMapVisible);
          firePropertyChange("miniMapVisible", old, this.isMiniMapVisible());
      }
docs: Sets if the mini-map should be visible
  @param miniMapVisible a new value for the miniMap property