code: public void setGaugeType(final GaugeType GAUGE_TYPE) {
          getModel().setGaugeType(GAUGE_TYPE);
          init(getInnerBounds().width, getInnerBounds().height);
          repaint(getInnerBounds());
      }
docs: Sets the type of the gauge
  TYPE1    a quarter gauge (90 deg)
  TYPE2    a two quarter gauge (180 deg)
  TYPE3    a three quarter gauge (270 deg)
  TYPE4    a four quarter gauge (300 deg)
  CUSTOM   set the {@link #setCustomGaugeType(CustomGaugeType) custom gauge type}.
  @param GAUGE_TYPE