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 // Created on: 1992-04-06
 // Created by: Jacques GOUSSARD
 // 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 _IntPatch_GLine_HeaderFile
 #define _IntPatch_GLine_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_Type.hxx>
 
 #include <gp_Ax2.hxx>
 #include <Standard_Integer.hxx>
 #include <IntPatch_Point.hxx>
 #include <NCollection_Sequence.hxx>
 #include <IntPatch_Line.hxx>
 #include <IntSurf_TypeTrans.hxx>
 #include <IntSurf_Situation.hxx>
 #include <gp_Circ.hxx>
 class gp_Lin;
 class gp_Circ;
 class gp_Elips;
 class gp_Parab;
 class gp_Hypr;
 class IntPatch_Point;
 
 //! Implementation of an intersection line represented
 //! by a conic.
 class IntPatch_GLine : public IntPatch_Line
 {
 
 public:
   //! Creates a Line as intersection line
   //! when the transitions are In or Out.
   Standard_EXPORT IntPatch_GLine(const gp_Lin&           L,
                                  const bool              Tang,
                                  const IntSurf_TypeTrans Trans1,
                                  const IntSurf_TypeTrans Trans2);
 
   //! Creates a Line as intersection line
   //! when the transitions are Touch.
   Standard_EXPORT IntPatch_GLine(const gp_Lin&           L,
                                  const bool              Tang,
                                  const IntSurf_Situation Situ1,
                                  const IntSurf_Situation Situ2);
 
   //! Creates a Line as intersection line
   //! when the transitions are Undecided.
   Standard_EXPORT IntPatch_GLine(const gp_Lin& L, const bool Tang);
 
   //! Creates a circle as intersection line
   //! when the transitions are In or Out.
   Standard_EXPORT IntPatch_GLine(const gp_Circ&          C,
                                  const bool              Tang,
                                  const IntSurf_TypeTrans Trans1,
                                  const IntSurf_TypeTrans Trans2);
 
   //! Creates a circle as intersection line
   //! when the transitions are Touch.
   Standard_EXPORT IntPatch_GLine(const gp_Circ&          C,
                                  const bool              Tang,
                                  const IntSurf_Situation Situ1,
                                  const IntSurf_Situation Situ2);
 
   //! Creates a circle as intersection line
   //! when the transitions are Undecided.
   Standard_EXPORT IntPatch_GLine(const gp_Circ& C, const bool Tang);
 
   //! Creates an ellipse as intersection line
   //! when the transitions are In or Out.
   Standard_EXPORT IntPatch_GLine(const gp_Elips&         E,
                                  const bool              Tang,
                                  const IntSurf_TypeTrans Trans1,
                                  const IntSurf_TypeTrans Trans2);
 
   //! Creates an ellispe as intersection line
   //! when the transitions are Touch.
   Standard_EXPORT IntPatch_GLine(const gp_Elips&         E,
                                  const bool              Tang,
                                  const IntSurf_Situation Situ1,
                                  const IntSurf_Situation Situ2);
 
   //! Creates an ellipse as intersection line
   //! when the transitions are Undecided.
   Standard_EXPORT IntPatch_GLine(const gp_Elips& E, const bool Tang);
 
   //! Creates a parabola as intersection line
   //! when the transitions are In or Out.
   Standard_EXPORT IntPatch_GLine(const gp_Parab&         P,
                                  const bool              Tang,
                                  const IntSurf_TypeTrans Trans1,
                                  const IntSurf_TypeTrans Trans2);
 
   //! Creates a parabola as intersection line
   //! when the transitions are Touch.
   Standard_EXPORT IntPatch_GLine(const gp_Parab&         P,
                                  const bool              Tang,
                                  const IntSurf_Situation Situ1,
                                  const IntSurf_Situation Situ2);
 
   //! Creates a parabola as intersection line
   //! when the transitions are Undecided.
   Standard_EXPORT IntPatch_GLine(const gp_Parab& P, const bool Tang);
 
   //! Creates an hyperbola as intersection line
   //! when the transitions are In or Out.
   Standard_EXPORT IntPatch_GLine(const gp_Hypr&          H,
                                  const bool              Tang,
                                  const IntSurf_TypeTrans Trans1,
                                  const IntSurf_TypeTrans Trans2);
 
   //! Creates an hyperbola as intersection line
   //! when the transitions are Touch.
   Standard_EXPORT IntPatch_GLine(const gp_Hypr&          H,
                                  const bool              Tang,
                                  const IntSurf_Situation Situ1,
                                  const IntSurf_Situation Situ2);
 
   //! Creates an hyperbola as intersection line
   //! when the transitions are Undecided.
   Standard_EXPORT IntPatch_GLine(const gp_Hypr& H, const bool Tang);
 
   //! To add a vertex in the list.
   Standard_EXPORT void AddVertex(const IntPatch_Point& Pnt);
 
   //! To replace the element of range Index in the list
   //! of points.
   Standard_EXPORT void Replace(const int Index, const IntPatch_Point& Pnt);
 
   void SetFirstPoint(const int IndFirst);
 
   void SetLastPoint(const int IndLast);
 
   //! Returns the Lin from gp corresponding to the intersection
   //! when ArcType returns IntPatch_Line.
   gp_Lin Line() const;
 
   //! Returns the Circ from gp corresponding to the intersection
   //! when ArcType returns IntPatch_Circle.
   gp_Circ Circle() const;
 
   //! Returns the Elips from gp corresponding to the intersection
   //! when ArcType returns IntPatch_Ellipse.
   gp_Elips Ellipse() const;
 
   //! Returns the Parab from gp corresponding to the intersection
   //! when ArcType returns IntPatch_Parabola.
   gp_Parab Parabola() const;
 
   //! Returns the Hypr from gp corresponding to the intersection
   //! when ArcType returns IntPatch_Hyperbola.
   gp_Hypr Hyperbola() const;
 
   //! Returns True if the line has a known First point.
   //! This point is given by the method FirstPoint().
   bool HasFirstPoint() const;
 
   //! Returns True if the line has a known Last point.
   //! This point is given by the method LastPoint().
   bool HasLastPoint() const;
 
   //! Returns the IntPoint corresponding to the FirstPoint.
   //! An exception is raised when HasFirstPoint returns False.
   const IntPatch_Point& FirstPoint() const;
 
   //! Returns the IntPoint corresponding to the LastPoint.
   //! An exception is raised when HasLastPoint returns False.
   const IntPatch_Point& LastPoint() const;
 
   int NbVertex() const;
 
   //! Returns the vertex of range Index on the line.
   const IntPatch_Point& Vertex(const int Index) const;
 
   //! Set the parameters of all the vertex on the line.
   //! if a vertex is already in the line,
   //! its parameter is modified
   //! else a new point in the line is inserted.
   Standard_EXPORT void ComputeVertexParameters(const double Tol);
 
   DEFINE_STANDARD_RTTIEXT(IntPatch_GLine, IntPatch_Line)
 
 private:
   gp_Ax2                               pos;
   double                               par1;
   double                               par2;
   bool                                 fipt;
   bool                                 lapt;
   int                                  indf;
   int                                  indl;
   NCollection_Sequence<IntPatch_Point> svtx;
 };
 
 #include <IntPatch_GLine.lxx>
 
 #endif // _IntPatch_GLine_HeaderFile

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