1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and/or modify it under
6 // the terms of the GNU Lesser General Public License version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
14 #include <IFSelect_SelectRoots.ixx>
15 #include <IFGraph_Cumulate.hxx>
18 IFSelect_SelectRoots::IFSelect_SelectRoots () { }
21 // Refait pour travailler en une fois
23 Interface_EntityIterator IFSelect_SelectRoots::RootResult
24 (const Interface_Graph& G) const
26 Interface_EntityIterator input = InputResult(G);
27 Interface_EntityIterator iter;
28 IFGraph_Cumulate GC(G);
30 // On note dans le graphe : le cumul de chaque ensemble (Entite + Shared tous
31 // niveaux). Les Roots initiales comptees une seule fois sont bonnes
32 for (input.Start(); input.More(); input.Next()) {
33 Handle(Standard_Transient) ent = input.Value();
34 GC.GetFromEntity(ent);
36 // A present, on retient, parmi les inputs, celles comptees une seule fois
37 for (input.Start(); input.More(); input.Next()) {
38 Handle(Standard_Transient) ent = input.Value();
39 if ((Standard_Boolean)(GC.NbTimes(ent) <= 1) == IsDirect()) iter.GetOneItem(ent);
44 Standard_Boolean IFSelect_SelectRoots::HasUniqueResult () const
45 { return Standard_True; }
47 Standard_Boolean IFSelect_SelectRoots::Sort
48 (const Standard_Integer , const Handle(Standard_Transient)& ,
49 const Handle(Interface_InterfaceModel)& ) const
50 { return Standard_True; }
52 TCollection_AsciiString IFSelect_SelectRoots::ExtractLabel () const
53 { return TCollection_AsciiString("Local Roots"); }