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 // Created on: 1991-05-27
 // Created by: Isabelle GRIGNON
 // Copyright (c) 1991-1999 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_WLine_HeaderFile
 #define _IntPatch_WLine_HeaderFile
 
 #include <Standard.hxx>
 
 #include <Standard_Integer.hxx>
 #include <IntPatch_SequenceOfPoint.hxx>
 #include <Standard_Real.hxx>
 #include <IntPatch_PointLine.hxx>
 #include <IntSurf_LineOn2S.hxx>
 #include <IntSurf_Situation.hxx>
 #include <IntSurf_TypeTrans.hxx>
 
 class IntPatch_Point;
 class IntSurf_PntOn2S;
 class gp_Pnt2d;
 class gp_Pnt;
 
 
 class IntPatch_WLine;
 DEFINE_STANDARD_HANDLE(IntPatch_WLine, IntPatch_PointLine)
 
 //! Definition of set of points as a result of the intersection
 //! between 2 parametrised patches.
 class IntPatch_WLine : public IntPatch_PointLine
 {
 
 public:
 
   //! Enumeration of ways of WLine creation.
   enum IntPatch_WLType
   {
     IntPatch_WLUnknown,
     IntPatch_WLImpImp,
     IntPatch_WLImpPrm,
     IntPatch_WLPrmPrm
   };
   
   //! Creates a WLine as an intersection when the
   //! transitions are In or Out.
   Standard_EXPORT IntPatch_WLine(const Handle(IntSurf_LineOn2S)& Line, const Standard_Boolean Tang, const IntSurf_TypeTrans Trans1, const IntSurf_TypeTrans Trans2);
   
   //! Creates a WLine as an intersection when the
   //! transitions are Touch.
   Standard_EXPORT IntPatch_WLine(const Handle(IntSurf_LineOn2S)& Line, const Standard_Boolean Tang, const IntSurf_Situation Situ1, const IntSurf_Situation Situ2);
   
   //! Creates a WLine as an intersection when the
   //! transitions are Undecided.
   Standard_EXPORT IntPatch_WLine(const Handle(IntSurf_LineOn2S)& Line, const Standard_Boolean Tang);
   
   //! Adds a vertex in the list. If theIsPrepend == TRUE the new
   //! vertex will be added before the first element of vertices sequence.
   //! Otherwise, to the end of the sequence
   virtual void AddVertex (const IntPatch_Point& Pnt,
                     const Standard_Boolean theIsPrepend = Standard_False) Standard_OVERRIDE;
   
   //! Set the Point of index <Index> in the LineOn2S
   Standard_EXPORT void SetPoint (const Standard_Integer Index, const IntPatch_Point& Pnt);
   
   //! Replaces the element of range Index in the list
   //! of points.
   //! The exception OutOfRange is raised when
   //! Index <= 0 or Index > NbVertex.
     void Replace (const Standard_Integer Index, const IntPatch_Point& Pnt);
   
     void SetFirstPoint (const Standard_Integer IndFirst);
   
     void SetLastPoint (const Standard_Integer IndLast);
   
   //! Returns the number of intersection points.
   virtual Standard_Integer NbPnts() const Standard_OVERRIDE;
   
   //! Returns the intersection point of range Index.
   virtual const IntSurf_PntOn2S& Point (const Standard_Integer Index) const Standard_OVERRIDE;
   
   //! Returns True if the line has a known First point.
   //! This point is given by the method FirstPoint().
     Standard_Boolean HasFirstPoint() const;
   
   //! Returns True if the line has a known Last point.
   //! This point is given by the method LastPoint().
     Standard_Boolean HasLastPoint() const;
   
   //! Returns the Point corresponding to the FirstPoint.
     const IntPatch_Point& FirstPoint() const;
   
   //! Returns the Point corresponding to the LastPoint.
     const IntPatch_Point& LastPoint() const;
   
   //! Returns the Point corresponding to the FirstPoint.
   //! Indfirst is the index of the first in the list
   //! of vertices.
     const IntPatch_Point& FirstPoint (Standard_Integer& Indfirst) const;
   
   //! Returns the Point corresponding to the LastPoint.
   //! Indlast is the index of the last in the list
   //! of vertices.
     const IntPatch_Point& LastPoint (Standard_Integer& Indlast) const;
   
   //! Returns number of vertices (IntPatch_Point) of the line
   virtual Standard_Integer NbVertex() const Standard_OVERRIDE;
   
   //! Returns the vertex of range Index on the line.
   virtual const IntPatch_Point& Vertex (const Standard_Integer Index) const Standard_OVERRIDE;
 
   //! Returns the vertex of range Index on the line.
   virtual IntPatch_Point& ChangeVertex (const Standard_Integer Index) Standard_OVERRIDE;
   
   //! 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 Standard_Real Tol);
   
   //! Returns set of intersection points
   Standard_EXPORT virtual Handle(IntSurf_LineOn2S) Curve() const Standard_OVERRIDE;
   
   //! Returns TRUE if theP is out of the box built from
   //! the points on 1st surface
   Standard_Boolean IsOutSurf1Box (const gp_Pnt2d& theP) const Standard_OVERRIDE
   {
     return curv->IsOutSurf1Box(theP);
   }
   
   //! Returns TRUE if theP is out of the box built from
   //! the points on 2nd surface
   Standard_Boolean IsOutSurf2Box(const gp_Pnt2d& theP) const Standard_OVERRIDE
   {
     return curv->IsOutSurf2Box(theP);
   }
   
   //! Returns TRUE if theP is out of the box built from 3D-points.
   Standard_Boolean IsOutBox(const gp_Pnt& theP) const Standard_OVERRIDE
   {
     return curv->IsOutBox(theP);
   }
 
   Standard_EXPORT void SetPeriod (const Standard_Real pu1, const Standard_Real pv1, const Standard_Real pu2, const Standard_Real pv2);
   
   Standard_EXPORT Standard_Real U1Period() const;
   
   Standard_EXPORT Standard_Real V1Period() const;
   
   Standard_EXPORT Standard_Real U2Period() const;
   
   Standard_EXPORT Standard_Real V2Period() const;
   
   Standard_EXPORT void SetArcOnS1 (const Handle(Adaptor2d_Curve2d)& A);
   
   Standard_EXPORT Standard_Boolean HasArcOnS1() const;
   
   Standard_EXPORT const Handle(Adaptor2d_Curve2d)& GetArcOnS1() const;
   
   Standard_EXPORT void SetArcOnS2 (const Handle(Adaptor2d_Curve2d)& A);
   
   Standard_EXPORT Standard_Boolean HasArcOnS2() const;
   
   Standard_EXPORT const Handle(Adaptor2d_Curve2d)& GetArcOnS2() const;
   
   //! Removes vertices from the line (i.e. cleans svtx member)
   virtual void ClearVertexes() Standard_OVERRIDE;
   
   //! Removes single vertex from the line
   virtual void RemoveVertex (const Standard_Integer theIndex) Standard_OVERRIDE;
   
   void InsertVertexBefore (const Standard_Integer theIndex, const IntPatch_Point& thePnt);
   
   //! if (theMode == 0) then prints the information about WLine
   //! if (theMode == 1) then prints the list of 3d-points
   //! if (theMode == 2) then prints the list of 2d-points on the 1st surface
   //! Otherwise,             prints list of 2d-points on the 2nd surface
   Standard_EXPORT void Dump(const Standard_Integer theMode) const;
 
   //! Allows or forbids purging of existing WLine
   void EnablePurging(const Standard_Boolean theIsEnabled)
   {
     myIsPurgerAllowed = theIsEnabled;
   }
 
   //! Returns TRUE if purging is allowed or forbidden for existing WLine
   Standard_Boolean IsPurgingAllowed()
   {
     return myIsPurgerAllowed;
   }
 
   //! Returns the way of <*this> creation.
   IntPatch_WLType GetCreatingWay() const
   {
     return myCreationWay;
   }
 
   //! Sets the info about the way of <*this> creation.
   void SetCreatingWayInfo(IntPatch_WLType theAlgo)
   {
     myCreationWay = theAlgo;
   }
 
 
   DEFINE_STANDARD_RTTIEXT(IntPatch_WLine,IntPatch_PointLine)
 
 protected:
 
 
 
 
 private:
 
 
   Handle(IntSurf_LineOn2S) curv;
   Standard_Boolean fipt;
   Standard_Boolean lapt;
   Standard_Integer indf;
   Standard_Integer indl;
   IntPatch_SequenceOfPoint svtx;
   Standard_Real u1period;
   Standard_Real v1period;
   Standard_Real u2period;
   Standard_Real v2period;
   Standard_Boolean hasArcOnS1;
   Handle(Adaptor2d_Curve2d) theArcOnS1;
   Standard_Boolean hasArcOnS2;
   Handle(Adaptor2d_Curve2d) theArcOnS2;
   Standard_Boolean myIsPurgerAllowed;
 
   //! identifies the way of <*this> creation
   IntPatch_WLType myCreationWay;
 
 };
 
 
 #include <IntPatch_WLine.lxx>
 
 
 
 
 
 #endif // _IntPatch_WLine_HeaderFile

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