code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.TILE_TOCRG__XOFFSET:
  				return XOFFSET_EDEFAULT == null ? xoffset != null : !XOFFSET_EDEFAULT.equals(xoffset);
  			case AfplibPackage.TILE_TOCRG__YOFFSET:
  				return YOFFSET_EDEFAULT == null ? yoffset != null : !YOFFSET_EDEFAULT.equals(yoffset);
  			case AfplibPackage.TILE_TOCRG__THSIZE:
  				return THSIZE_EDEFAULT == null ? thsize != null : !THSIZE_EDEFAULT.equals(thsize);
  			case AfplibPackage.TILE_TOCRG__TVSIZE:
  				return TVSIZE_EDEFAULT == null ? tvsize != null : !TVSIZE_EDEFAULT.equals(tvsize);
  			case AfplibPackage.TILE_TOCRG__RELRES:
  				return RELRES_EDEFAULT == null ? relres != null : !RELRES_EDEFAULT.equals(relres);
  			case AfplibPackage.TILE_TOCRG__COMPR:
  				return COMPR_EDEFAULT == null ? compr != null : !COMPR_EDEFAULT.equals(compr);
  			case AfplibPackage.TILE_TOCRG__DATAPOS:
  				return DATAPOS_EDEFAULT == null ? datapos != null : !DATAPOS_EDEFAULT.equals(datapos);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated