1 // Copyright (c) 1999-2012 OPEN CASCADE SAS
3 // The content of this file is subject to the Open CASCADE Technology Public
4 // License Version 6.5 (the "License"). You may not use the content of this file
5 // except in compliance with the License. Please obtain a copy of the License
6 // at http://www.opencascade.org and read it completely before using this file.
8 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
9 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11 // The Original Code and all software distributed under the License is
12 // distributed on an "AS IS" basis, without warranty of any kind, and the
13 // Initial Developer hereby disclaims all such warranties, including without
14 // limitation, any warranties of merchantability, fitness for a particular
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16 // and conditions governing the rights and limitations under the License.
18 #include <IFSelect_SelectRoots.ixx>
19 #include <IFGraph_Cumulate.hxx>
22 IFSelect_SelectRoots::IFSelect_SelectRoots () { }
25 // Refait pour travailler en une fois
27 Interface_EntityIterator IFSelect_SelectRoots::RootResult
28 (const Interface_Graph& G) const
30 Interface_EntityIterator input = InputResult(G);
31 Interface_EntityIterator iter;
32 IFGraph_Cumulate GC(G);
34 // On note dans le graphe : le cumul de chaque ensemble (Entite + Shared tous
35 // niveaux). Les Roots initiales comptees une seule fois sont bonnes
36 for (input.Start(); input.More(); input.Next()) {
37 Handle(Standard_Transient) ent = input.Value();
38 GC.GetFromEntity(ent);
40 // A present, on retient, parmi les inputs, celles comptees une seule fois
41 for (input.Start(); input.More(); input.Next()) {
42 Handle(Standard_Transient) ent = input.Value();
43 if ((Standard_Boolean)(GC.NbTimes(ent) <= 1) == IsDirect()) iter.GetOneItem(ent);
48 Standard_Boolean IFSelect_SelectRoots::HasUniqueResult () const
49 { return Standard_True; }
51 Standard_Boolean IFSelect_SelectRoots::Sort
52 (const Standard_Integer , const Handle(Standard_Transient)& ,
53 const Handle(Interface_InterfaceModel)& ) const
54 { return Standard_True; }
56 TCollection_AsciiString IFSelect_SelectRoots::ExtractLabel () const
57 { return TCollection_AsciiString("Local Roots"); }