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 // Created on: 1995-05-29
 // Created by: Jacques GOUSSARD
 // Copyright (c) 1995-1999 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 _LocOpe_CurveShapeIntersector_HeaderFile
 #define _LocOpe_CurveShapeIntersector_HeaderFile
 
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 
 #include <LocOpe_SequenceOfPntFace.hxx>
 #include <Standard_Integer.hxx>
 #include <TopAbs_Orientation.hxx>
 class gp_Ax1;
 class TopoDS_Shape;
 class gp_Circ;
 class LocOpe_PntFace;
 
 
 //! This  class  provides  the intersection between an
 //! axis  or  a circle and  the  faces of a shape. The
 //! intersection   points  are   sorted in  increasing
 //! parameter along the axis.
 class LocOpe_CurveShapeIntersector 
 {
 public:
 
   DEFINE_STANDARD_ALLOC
 
   
   //! Empty constructor.
     LocOpe_CurveShapeIntersector();
   
   //! Creates  and performs the intersection     betwwen
   //! <Ax1> and <S>.
     LocOpe_CurveShapeIntersector(const gp_Ax1& Axis, const TopoDS_Shape& S);
   
   //! Creates  and performs yte intersection     betwwen
   //! <C> and <S>.
     LocOpe_CurveShapeIntersector(const gp_Circ& C, const TopoDS_Shape& S);
   
   //! Performs the intersection between <Ax1 and <S>.
   Standard_EXPORT void Init (const gp_Ax1& Axis, const TopoDS_Shape& S);
   
   //! Performs the intersection between <Ax1 and <S>.
   Standard_EXPORT void Init (const gp_Circ& C, const TopoDS_Shape& S);
   
   //! Returns <Standard_True>  if the  intersection  has
   //! been done.
     Standard_Boolean IsDone() const;
   
   //! Returns the number of intersection point.
     Standard_Integer NbPoints() const;
   
   //! Returns the intersection  point  of range <Index>.
   //! The points  are   sorted in increasing  order   of
   //! parameter along the axis.
     const LocOpe_PntFace& Point (const Standard_Integer Index) const;
   
   //! Searches the   first intersection  point   located
   //! after the parameter  <From>, which  orientation is
   //! not       TopAbs_EXTERNAL.      If found,  returns
   //! <Standard_True>.  <Or> contains the orientation of
   //! the  point, <IndFrom>  and  <IndTo> represents the
   //! interval of index  in the sequence of intersection
   //! point  corresponding  to   the point. (IndFrom  <=
   //! IndTo).
   //!
   //! Otherwise, returns <Standard_False>.
   Standard_EXPORT Standard_Boolean LocalizeAfter (const Standard_Real From, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const;
   
   //! Searches  the first intersection point     located
   //! before  the parameter <From>, which orientation is
   //! not      TopAbs_EXTERNAL.      If  found,  returns
   //! <Standard_True>.  <Or> contains the orientation of
   //! the point,  <IndFrom>  and <IndTo>  represents the
   //! interval of index  in the sequence of intersection
   //! point  corresponding   to the point   (IndFrom  <=
   //! IndTo).
   //!
   //! Otherwise, returns <Standard_False>.
   Standard_EXPORT Standard_Boolean LocalizeBefore (const Standard_Real From, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const;
   
   //! Searches  the first intersection point     located
   //! after the index <FromInd> ( >= FromInd + 1), which
   //! orientation   is   not TopAbs_EXTERNAL.   If found,
   //! returns   <Standard_True>.   <Or>  contains    the
   //! orientation of the  point, <IndFrom>  and  <IndTo>
   //! represents the interval  of index in  the sequence
   //! of  intersection  point     corresponding to   the
   //! point. (IndFrom <= IndTo).
   //!
   //! Otherwise, returns <Standard_False>.
   Standard_EXPORT Standard_Boolean LocalizeAfter (const Standard_Integer FromInd, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const;
   
   //! Searches the  first  intersection   point  located
   //! before the index <FromInd> ( <= FromInd -1), which
   //! orientation is   not TopAbs_EXTERNAL.   If   found,
   //! returns   <Standard_True>.  <Or>  contains     the
   //! orientation  of the  point,  <IndFrom> and <IndTo>
   //! represents the interval  of index  in the sequence
   //! of  intersection  point corresponding to the point
   //! (IndFrom <= IndTo).
   //!
   //! Otherwise, returns <Standard_False>.
   Standard_EXPORT Standard_Boolean LocalizeBefore (const Standard_Integer FromInd, TopAbs_Orientation& Or, Standard_Integer& IndFrom, Standard_Integer& IndTo) const;
 
 
 
 
 protected:
 
 
 
 
 
 private:
 
 
 
   Standard_Boolean myDone;
   LocOpe_SequenceOfPntFace myPoints;
 
 
 };
 
 
 #include <LocOpe_CurveShapeIntersector.lxx>
 
 
 
 
 
 #endif // _LocOpe_CurveShapeIntersector_HeaderFile

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