-- Created on: 1992-11-17 -- Created by: Christian CAILLET -- Copyright (c) 1992-1999 Matra Datavision -- Copyright (c) 1999-2014 OPEN CASCADE SAS -- -- This file is part of Open CASCADE Technology software library. -- -- This library is free software; you can redistribute it and/or modify it under -- the terms of the GNU Lesser General Public License version 2.1 as published -- by the Free Software Foundation, with special exception defined in the file -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT -- distribution for complete text of the license and disclaimer of any warranty. -- -- Alternatively, this file may be used under the terms of Open CASCADE -- commercial license or contractual agreement. class SelectModelRoots from IFSelect inherits SelectBase ---Purpose : A SelectModelRoots gets all the Root Entities of an -- InterfaceModel. Remember that a "Root Entity" is defined as -- having no Sharing Entity (if there is a Loop between Entities, -- none of them can be a "Root"). uses AsciiString from TCollection, EntityIterator, Graph is Create returns SelectModelRoots; ---Purpose : Creates a SelectModelRoot RootResult (me; G : Graph) returns EntityIterator; ---Purpose : Returns the list of selected entities : the Roots of the Model -- (note that this result assures naturally uniqueness) Label (me) returns AsciiString from TCollection; ---Purpose : Returns a text defining the criterium : "Model Roots" end SelectModelRoots;