- * Create groups of entities from existing groups of superior dimensions
- * New group is created. System
- * 1) extracts all nodes from each group,
- * 2) combines all elements of specified dimension laying on these nodes.
+ * Create a group of entities basing on nodes of other groups.
+ * \param [in] aListOfGroups - list of either groups, sub-meshes or filters.
+ * \param [in] anElemType - a type of elements to include to the new group.
+ * \param [in] name - a name of the new group.
+ * \param [in] nbCommonNodes - criterion of inclusion of an element to the new group.
+ * \param [in] underlyingOnly - if \c True, an element is included to the
+ * new group provided that it is based on nodes of an element of
+ * \a aListOfGroups
+ * \return SMESH_Group - the created group