include/opencascade/TopCnx_EdgeFaceTransition.hxx

0001 // Created on: 1992-08-11
0002 // Created by: Remi LEQUETTE
0003 // Copyright (c) 1992-1999 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 _TopCnx_EdgeFaceTransition_HeaderFile
0018 #define _TopCnx_EdgeFaceTransition_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <TopTrans_CurveTransition.hxx>
0025 #include <TopAbs_Orientation.hxx>
0026 class gp_Dir;
0027
0028 //! TheEdgeFaceTransition is an algorithm to   compute
0029 //! the  cumulated  transition for interferences on an
0030 //! edge.
0031 class TopCnx_EdgeFaceTransition
0032 {
0033 public:
0034   DEFINE_STANDARD_ALLOC
0035
0036   //! Creates an empty algorithm.
0037   Standard_EXPORT TopCnx_EdgeFaceTransition();
0038
0039   //! Initialize  the     algorithm    with the    local
0040   //! description of the edge.
0041   Standard_EXPORT void Reset(const gp_Dir& Tgt, const gp_Dir& Norm, const Standard_Real Curv);
0042
0043   //! Initialize the algorithm with a linear Edge.
0044   Standard_EXPORT void Reset(const gp_Dir& Tgt);
0045
0046   //! Add a curve  element to the  boundary.  Or  is the
0047   //! orientation of   the interference on  the boundary
0048   //! curve. Tr is  the transition  of the interference.
0049   //! BTr     is   the    boundary  transition    of the
0050   //! interference.
0051   Standard_EXPORT void AddInterference(const Standard_Real      Tole,
0052                                        const gp_Dir&            Tang,
0053                                        const gp_Dir&            Norm,
0054                                        const Standard_Real      Curv,
0055                                        const TopAbs_Orientation Or,
0056                                        const TopAbs_Orientation Tr,
0057                                        const TopAbs_Orientation BTr);
0058
0059   //! Returns the current cumulated transition.
0060   Standard_EXPORT TopAbs_Orientation Transition() const;
0061
0062   //! Returns the current cumulated BoundaryTransition.
0063   Standard_EXPORT TopAbs_Orientation BoundaryTransition() const;
0064
0065 protected:
0066 private:
0067   TopTrans_CurveTransition myCurveTransition;
0068   Standard_Integer         nbBoundForward;
0069   Standard_Integer         nbBoundReversed;
0070 };
0071
0072 #endif // _TopCnx_EdgeFaceTransition_HeaderFile