include/opencascade/BRepLib_MakeShape.hxx

0001 // Created on: 1993-07-21
0002 // Created by: Remi LEQUETTE
0003 // Copyright (c) 1993-1999 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 _BRepLib_MakeShape_HeaderFile
0018 #define _BRepLib_MakeShape_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <TopoDS_Shape.hxx>
0025 #include <NCollection_List.hxx>
0026 #include <BRepLib_Command.hxx>
0027 #include <BRepLib_ShapeModification.hxx>
0028 class TopoDS_Face;
0029 class TopoDS_Edge;
0030
0031 //! This is the root class for all shape
0032 //! constructions. It stores the result.
0033 //!
0034 //! It provides deferred methods to trace the history
0035 //! of sub-shapes.
0036 class BRepLib_MakeShape : public BRepLib_Command
0037 {
0038 public:
0039   DEFINE_STANDARD_ALLOC
0040
0041   //! This is called by Shape(). It does nothing but
0042   //! may be redefined.
0043   Standard_EXPORT void Build();
0044
0045   Standard_EXPORT const TopoDS_Shape& Shape();
0046   Standard_EXPORT                     operator TopoDS_Shape();
0047
0048   //! returns the status of the Face after
0049   //! the shape creation.
0050   Standard_EXPORT virtual BRepLib_ShapeModification FaceStatus(const TopoDS_Face& F) const;
0051
0052   //! Returns True if the Face generates new topology.
0053   Standard_EXPORT virtual bool HasDescendants(const TopoDS_Face& F) const;
0054
0055   //! returns the list of generated Faces.
0056   Standard_EXPORT virtual const NCollection_List<TopoDS_Shape>& DescendantFaces(
0057     const TopoDS_Face& F);
0058
0059   //! returns the number of surfaces
0060   //! after the shape creation.
0061   Standard_EXPORT virtual int NbSurfaces() const;
0062
0063   //! Return the faces created for surface I.
0064   Standard_EXPORT virtual const NCollection_List<TopoDS_Shape>& NewFaces(const int I);
0065
0066   //! returns a list of the created faces
0067   //! from the edge <E>.
0068   Standard_EXPORT virtual const NCollection_List<TopoDS_Shape>& FacesFromEdges(
0069     const TopoDS_Edge& E);
0070
0071 protected:
0072   Standard_EXPORT BRepLib_MakeShape();
0073
0074   TopoDS_Shape                   myShape;
0075   NCollection_List<TopoDS_Shape> myGenFaces;
0076   NCollection_List<TopoDS_Shape> myNewFaces;
0077   NCollection_List<TopoDS_Shape> myEdgFaces;
0078 };
0079
0080 #endif // _BRepLib_MakeShape_HeaderFile