/// Returns null label otherwise.
TDF_Label baseDocumentLab();
+ /// Returns features that conceals theFeature and located in history before theStop
+ void Model_AttributeSelection::concealedFeature(
+ const FeaturePtr theFeature, const FeaturePtr theStop, std::list<FeaturePtr>& theConcealers);
+
friend class Model_Data;
friend class Model_AttributeSelectionList;
};