include/opencascade/BRepAlgo_FaceRestrictor.hxx

0001 // Created on: 1995-09-01
0002 // Created by: Yves FRICAUD
0003 // Copyright (c) 1995-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _BRepAlgo_FaceRestrictor_HeaderFile
0018 #define _BRepAlgo_FaceRestrictor_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022
0023 #include <TopoDS_Face.hxx>
0024 #include <TopoDS_Shape.hxx>
0025 #include <NCollection_List.hxx>
0026 #include <TopTools_ShapeMapHasher.hxx>
0027 #include <NCollection_DataMap.hxx>
0028 class TopoDS_Wire;
0029
0030 //! Builds all the faces limited with a set of non
0031 //! jointing and planars wires.
0032 //! if <ControlOrientation> is false The Wires must have
0033 //! correct orientations. Sinon orientation des wires
0034 //! de telle sorte que les faces ne soient pas infinies
0035 //! et qu'elles soient disjointes.
0036 class BRepAlgo_FaceRestrictor
0037 {
0038 public:
0039   DEFINE_STANDARD_ALLOC
0040
0041   Standard_EXPORT BRepAlgo_FaceRestrictor();
0042
0043   //! the surface of <F> will be the surface of each new
0044   //! faces built.
0045   //! <Proj> is used to update pcurves on edges if necessary.
0046   //! See Add().
0047   Standard_EXPORT void Init(const TopoDS_Face& F,
0048                             const bool         Proj               = false,
0049                             const bool         ControlOrientation = false);
0050
0051   //! Add the wire <W> to the set of wires.
0052   //!
0053   //! Warning:
0054   //! The Wires must be closed.
0055   //!
0056   //! The edges of <W> can be modified if they don't have
0057   //! pcurves on the surface <S> of <F>. In this case
0058   //! if <Proj> is false the first pcurve of the edge
0059   //! is positioned on <S>.
0060   //! if <Proj> is True, the Pcurve On <S> is the
0061   //! projection of the curve 3d on <F>.
0062   Standard_EXPORT void Add(TopoDS_Wire& W);
0063
0064   //! Removes all the Wires
0065   Standard_EXPORT void Clear();
0066
0067   //! Evaluate all the faces limited by the set of Wires.
0068   Standard_EXPORT void Perform();
0069
0070   Standard_EXPORT bool IsDone() const;
0071
0072   Standard_EXPORT bool More() const;
0073
0074   Standard_EXPORT void Next();
0075
0076   Standard_EXPORT TopoDS_Face Current() const;
0077
0078 private:
0079   //! Evaluate all the faces limited by the set of Wires.
0080   Standard_EXPORT void PerformWithCorrection();
0081
0082   bool                           myDone;
0083   bool                           modeProj;
0084   TopoDS_Face                    myFace;
0085   NCollection_List<TopoDS_Shape> wires;
0086   NCollection_List<TopoDS_Shape> faces;
0087   bool                           myCorrection;
0088   NCollection_DataMap<TopoDS_Shape, NCollection_List<TopoDS_Shape>, TopTools_ShapeMapHasher>
0089     keyIsIn;
0090   NCollection_DataMap<TopoDS_Shape, NCollection_List<TopoDS_Shape>, TopTools_ShapeMapHasher>
0091     keyContains;
0092 };
0093
0094 #endif // _BRepAlgo_FaceRestrictor_HeaderFile