code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.DIR__RLENGTH:
  				return RLENGTH_EDEFAULT == null ? rlength != null : !RLENGTH_EDEFAULT.equals(rlength);
  			case AfplibPackage.DIR__RWIDTH:
  				return RWIDTH_EDEFAULT == null ? rwidth != null : !RWIDTH_EDEFAULT.equals(rwidth);
  			case AfplibPackage.DIR__RWIDTHFRACTION:
  				return RWIDTHFRACTION_EDEFAULT == null ? rwidthfraction != null : !RWIDTHFRACTION_EDEFAULT.equals(rwidthfraction);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated