code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.PGD__XPG_BASE:
  				return XPG_BASE_EDEFAULT == null ? xpgBase != null : !XPG_BASE_EDEFAULT.equals(xpgBase);
  			case AfplibPackage.PGD__YPG_BASE:
  				return YPG_BASE_EDEFAULT == null ? ypgBase != null : !YPG_BASE_EDEFAULT.equals(ypgBase);
  			case AfplibPackage.PGD__XPG_UNITS:
  				return XPG_UNITS_EDEFAULT == null ? xpgUnits != null : !XPG_UNITS_EDEFAULT.equals(xpgUnits);
  			case AfplibPackage.PGD__YPG_UNITS:
  				return YPG_UNITS_EDEFAULT == null ? ypgUnits != null : !YPG_UNITS_EDEFAULT.equals(ypgUnits);
  			case AfplibPackage.PGD__XPG_SIZE:
  				return XPG_SIZE_EDEFAULT == null ? xpgSize != null : !XPG_SIZE_EDEFAULT.equals(xpgSize);
  			case AfplibPackage.PGD__YPG_SIZE:
  				return YPG_SIZE_EDEFAULT == null ? ypgSize != null : !YPG_SIZE_EDEFAULT.equals(ypgSize);
  			case AfplibPackage.PGD__RESERVED:
  				return RESERVED_EDEFAULT == null ? reserved != null : !RESERVED_EDEFAULT.equals(reserved);
  			case AfplibPackage.PGD__TRIPLETS:
  				return triplets != null && !triplets.isEmpty();
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated