code: @Override
  	public void eUnset(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.PGD__XPG_BASE:
  				setXpgBase(XPG_BASE_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__YPG_BASE:
  				setYpgBase(YPG_BASE_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__XPG_UNITS:
  				setXpgUnits(XPG_UNITS_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__YPG_UNITS:
  				setYpgUnits(YPG_UNITS_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__XPG_SIZE:
  				setXpgSize(XPG_SIZE_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__YPG_SIZE:
  				setYpgSize(YPG_SIZE_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__RESERVED:
  				setReserved(RESERVED_EDEFAULT);
  				return;
  			case AfplibPackage.PGD__TRIPLETS:
  				getTriplets().clear();
  				return;
  		}
  		super.eUnset(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated