} else if (name.equals(AllUnitsPropertyValue)) { setUnit(null);
    public void setProperties(String prefix, Properties setList) {        super.setProperties(prefix, setList);        prefix = PropUtils.getScopedPropertyPrefix(prefix);        String name = setList.getProperty(prefix + UnitProperty);        if (name != null) {            Length length = Length.get(name);            if (length != null) {                setUnit(length);            }        }        showCircle(PropUtils.booleanFromProperties(setList, prefix                + ShowCircleProperty, true));        showAzimuth(PropUtils.booleanFromProperties(setList, prefix                + ShowAngleProperty, true));        setRepaintToClean(PropUtils.booleanFromProperties(setList, prefix                + RepaintToCleanProperty, false));    }