// Created on: 1994-02-24
// Created by: Laurent BOURESCHE
// Copyright (c) 1994-1999 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 _BRepLProp_HeaderFile
#define _BRepLProp_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>

#include <GeomAbs_Shape.hxx>
#include <Standard_Real.hxx>
class BRepAdaptor_Curve;
class BRepLProp_CurveTool;
class BRepLProp_SurfaceTool;
class BRepLProp_CLProps;
class BRepLProp_SLProps;


//! These global functions compute the degree of
//! continuity of a curve built by concatenation of two
//! edges at their junction point.
class BRepLProp 
{
public:

  DEFINE_STANDARD_ALLOC

  
  //! Computes the regularity at the junction between C1 and
  //! C2. The point u1 on C1 and the point u2 on  C2 must be
  //! confused.   tl  and ta  are  the  linear  and  angular
  //! tolerance used two compare the derivative.
  Standard_EXPORT static GeomAbs_Shape Continuity (const BRepAdaptor_Curve& C1, const BRepAdaptor_Curve& C2, const Standard_Real u1, const Standard_Real u2, const Standard_Real tl, const Standard_Real ta);
  
  //! The  same  as  preciding   but   using  the   standard
  //! tolerances from package Precision.
  Standard_EXPORT static GeomAbs_Shape Continuity (const BRepAdaptor_Curve& C1, const BRepAdaptor_Curve& C2, const Standard_Real u1, const Standard_Real u2);




protected:





private:




friend class BRepLProp_CurveTool;
friend class BRepLProp_SurfaceTool;
friend class BRepLProp_CLProps;
friend class BRepLProp_SLProps;

};







#endif // _BRepLProp_HeaderFile