1 // Created on: 1992-08-20
2 // Created by: Christophe MARION
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _HLRAlgo_Coincidence_HeaderFile
18 #define _HLRAlgo_Coincidence_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
23 #include <Standard_Integer.hxx>
24 #include <TopAbs_State.hxx>
26 //! The Coincidence class is used in an Inteference to
27 //! store information on the "hiding" edge.
29 //! 2D Data : The tangent and the curvature of the
30 //! projection of the edge at the intersection point.
31 //! This is necesserary when the intersection is at
32 //! the extremity of the edge.
34 //! 3D Data : The state of the edge near the
35 //! intersection with the face (before and after).
36 //! This is necessary when the intersection is "ON"
38 class HLRAlgo_Coincidence
43 HLRAlgo_Coincidence() :
51 void Set2D (const Standard_Integer FE, const Standard_Real Param)
57 void SetState3D (const TopAbs_State stbef, const TopAbs_State staft)
63 void Value2D (Standard_Integer& FE, Standard_Real& Param) const
69 void State3D (TopAbs_State& stbef, TopAbs_State& staft) const
76 Standard_Integer myFE;
77 Standard_Real myParam;
82 #endif // _HLRAlgo_Coincidence_HeaderFile