code: public void setTicklabelOrientation(final TicklabelOrientation TICKLABEL_ORIENTATION) {
          getModel().setTicklabelOrienatation(TICKLABEL_ORIENTATION);
          init(getInnerBounds().width, getInnerBounds().height);
          repaint(getInnerBounds());
      }
docs: Sets the orientation of the tickmark labels
  @param TICKLABEL_ORIENTATION