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 // Created on: 1992-10-19
 // Created by: Remi GILET
 // Copyright (c) 1992-1999 Matra Datavision
 // Copyright (c) 1999-2014 OPEN CASCADE SAS
 //
 // This file is part of Open CASCADE Technology software library.
 //
 // This library is free software; you can redistribute it and/or modify it under
 // the terms of the GNU Lesser General Public License version 2.1 as published
 // by the Free Software Foundation, with special exception defined in the file
 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
 // distribution for complete text of the license and disclaimer of any warranty.
 //
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
 #ifndef _Bisector_Bisec_HeaderFile
 #define _Bisector_Bisec_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
 
 #include <GeomAbs_JoinType.hxx>
 class Geom2d_TrimmedCurve;
 class Geom2d_Curve;
 class gp_Pnt2d;
 class gp_Vec2d;
 class Geom2d_Point;
 
 //! Bisec provides the bisecting line between two elements
 //! This line is trimmed by a point <P> and it's contained in the domain
 //! defined by the two vectors <V1>, <V2> and <Sense>.
 //!
 //! Definition of the domain:
 //! if <Sense> is true the bisecting line is contained in the sector
 //! defined by <-V1> and <-V2> in the sense indirect.
 //! if <Sense> is false the bisecting line is contained in the sector
 //! defined by <-V1> and <-V2> in the sense direct.
 //!
 //! <Tolerance> is used to define degenerate bisector.
 //! if the bisector is an hyperbola and one of this radius is smaller
 //! than <Tolerance>, the bisector is replaced by a line or semi_line
 //! corresponding to one of hyperbola's axes.
 //! if the bisector is a parabola on the focal length is smaller than
 //! <Tolerance>, the bisector is replaced by a semi_line corresponding
 //! to the axe of symmetry of the parabola.
 //! if the bisector is an ellipse and the minor radius is smaller than
 //! <Tolerance>, the bisector is replaced by a segment corresponding
 //! to the great axe of the ellipse.
 class Bisector_Bisec
 {
 public:
   DEFINE_STANDARD_ALLOC
 
   Standard_EXPORT Bisector_Bisec();
 
   //! Performs the bisecting line between the curves
   //! <Cu1> and <Cu2>.
   //! <oncurve> is True if the point <P> is common to <Cu1>
   //! and <Cu2>.
   Standard_EXPORT void Perform(const occ::handle<Geom2d_Curve>& Cu1,
                                const occ::handle<Geom2d_Curve>& Cu2,
                                const gp_Pnt2d&                  P,
                                const gp_Vec2d&                  V1,
                                const gp_Vec2d&                  V2,
                                const double                     Sense,
                                const GeomAbs_JoinType           ajointype,
                                const double                     Tolerance,
                                const bool                       oncurve = true);
 
   //! Performs the bisecting line between the curve
   //! <Cu1> and the point <Pnt>.
   //! <oncurve> is True if the point <P> is the point <Pnt>.
   Standard_EXPORT void Perform(const occ::handle<Geom2d_Curve>& Cu,
                                const occ::handle<Geom2d_Point>& Pnt,
                                const gp_Pnt2d&                  P,
                                const gp_Vec2d&                  V1,
                                const gp_Vec2d&                  V2,
                                const double                     Sense,
                                const double                     Tolerance,
                                const bool                       oncurve = true);
 
   //! Performs the bisecting line between the curve
   //! <Cu> and the point <Pnt>.
   //! <oncurve> is True if the point <P> is the point <Pnt>.
   Standard_EXPORT void Perform(const occ::handle<Geom2d_Point>& Pnt,
                                const occ::handle<Geom2d_Curve>& Cu,
                                const gp_Pnt2d&                  P,
                                const gp_Vec2d&                  V1,
                                const gp_Vec2d&                  V2,
                                const double                     Sense,
                                const double                     Tolerance,
                                const bool                       oncurve = true);
 
   //! Performs the bisecting line between the two points
   //! <Pnt1> and <Pnt2>.
   Standard_EXPORT void Perform(const occ::handle<Geom2d_Point>& Pnt1,
                                const occ::handle<Geom2d_Point>& Pnt2,
                                const gp_Pnt2d&                  P,
                                const gp_Vec2d&                  V1,
                                const gp_Vec2d&                  V2,
                                const double                     Sense,
                                const double                     Tolerance = 0.0,
                                const bool                       oncurve   = true);
 
   //! Returns the Curve of <me>.
   Standard_EXPORT const occ::handle<Geom2d_TrimmedCurve>& Value() const;
 
   //! Returns the Curve of <me>.
   Standard_EXPORT const occ::handle<Geom2d_TrimmedCurve>& ChangeValue();
 
 private:
   occ::handle<Geom2d_TrimmedCurve> thebisector;
 };
 
 #endif // _Bisector_Bisec_HeaderFile

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