include/opencascade/Intf_InterferencePolygon2d.hxx

0001 // Created on: 1992-09-28
0002 // Created by: Didier PIFFAULT
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 _Intf_InterferencePolygon2d_HeaderFile
0018 #define _Intf_InterferencePolygon2d_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Standard_Boolean.hxx>
0025 #include <Intf_Interference.hxx>
0026 class Intf_Polygon2d;
0027 class gp_Pnt2d;
0028
0029 //! Computes the interference between two polygons or
0030 //! the self intersection of a polygon in two
0031 //! dimensions.
0032 class Intf_InterferencePolygon2d : public Intf_Interference
0033 {
0034 public:
0035   DEFINE_STANDARD_ALLOC
0036
0037   //! Constructs an empty interference of Polygon.
0038   Standard_EXPORT Intf_InterferencePolygon2d();
0039
0040   //! Constructs and computes an interference between two Polygons.
0041   Standard_EXPORT Intf_InterferencePolygon2d(const Intf_Polygon2d& Obje1,
0042                                              const Intf_Polygon2d& Obje2);
0043
0044   //! Constructs and computes the auto interference of a Polygon.
0045   Standard_EXPORT Intf_InterferencePolygon2d(const Intf_Polygon2d& Obje);
0046
0047   //! Computes an interference between two Polygons.
0048   Standard_EXPORT void Perform(const Intf_Polygon2d& Obje1, const Intf_Polygon2d& Obje2);
0049
0050   //! Computes the self interference of a Polygon.
0051   Standard_EXPORT void Perform(const Intf_Polygon2d& Obje);
0052
0053   //! Gives the geometrical 2d point of the intersection
0054   //! point at address <Index> in the interference.
0055   Standard_EXPORT gp_Pnt2d Pnt2dValue(const int Index) const;
0056
0057 private:
0058   Standard_EXPORT void Interference(const Intf_Polygon2d& Obje1, const Intf_Polygon2d& Obje2);
0059
0060   Standard_EXPORT void Interference(const Intf_Polygon2d& Obje);
0061
0062   Standard_EXPORT void Clean();
0063
0064   //! Computes the intersection between two segments
0065   //! <BegO><EndO> et <BegT><EndT>.
0066   Standard_EXPORT void Intersect(const int       iO,
0067                                  const int       iT,
0068                                  const gp_Pnt2d& BegO,
0069                                  const gp_Pnt2d& EndO,
0070                                  const gp_Pnt2d& BegT,
0071                                  const gp_Pnt2d& EndT);
0072
0073   bool oClos;
0074   bool tClos;
0075   int  nbso;
0076 };
0077
0078 #endif // _Intf_InterferencePolygon2d_HeaderFile