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73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
// Created on: 1992-12-02
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// Created by: Christian CAILLET
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// Copyright (c) 1992-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _IFSelect_SelectRootComps_HeaderFile
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#define _IFSelect_SelectRootComps_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <IFSelect_SelectExtract.hxx>
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#include <Standard_Integer.hxx>
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class Interface_EntityIterator;
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class Interface_Graph;
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class Standard_Transient;
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class Interface_InterfaceModel;
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class TCollection_AsciiString;
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class IFSelect_SelectRootComps;
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DEFINE_STANDARD_HANDLE(IFSelect_SelectRootComps, IFSelect_SelectExtract)
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//! A SelectRootComps sorts the Entities which are part of Strong
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//! Components, local roots of a set of Entities : they can be
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//! Single Components (containing one Entity) or Cycles
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//! This class gives a more secure result than SelectRoots (which
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//! considers only Single Components) but is longer to work : it
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//! can be used when there can be or there are cycles in a Model
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//! For each cycle, one Entity is given arbitrarily
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//! Reject works as for SelectRoots : Strong Components defined in
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//! the input list which are not local roots are given
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class IFSelect_SelectRootComps : public IFSelect_SelectExtract
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{
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public:
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//! Creates a SelectRootComps
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Standard_EXPORT IFSelect_SelectRootComps();
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//! Returns the list of local root strong components, by one Entity per component.
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//! It is redefined for a purpose of efficiency : calling a Sort routine for each Entity would
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//! cost more resources than to work in once using a Map
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//! RootResult takes in account the Direct status
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Standard_EXPORT virtual Interface_EntityIterator RootResult (const Interface_Graph& G) const Standard_OVERRIDE;
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//! Returns always True, because RootResult has done work
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Standard_EXPORT Standard_Boolean Sort (const Standard_Integer rank, const Handle(Standard_Transient)& ent, const Handle(Interface_InterfaceModel)& model) const Standard_OVERRIDE;
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//! Returns a text defining the criterium : "Local Root Components"
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Standard_EXPORT TCollection_AsciiString ExtractLabel() const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(IFSelect_SelectRootComps,IFSelect_SelectExtract)
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protected:
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//! Returns True, RootResult assuring uniqueness
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Standard_EXPORT virtual Standard_Boolean HasUniqueResult() const Standard_OVERRIDE;
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};
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#endif // _IFSelect_SelectRootComps_HeaderFile
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