// 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.

#include <StdFail_UndefinedDerivative.hxx>
#include <TColgp_HSequenceOfXY.hxx>

inline void IntSurf_PathPoint::AddUV(const Standard_Real U,
				     const Standard_Real V) {
  sequv->Append(gp_XY(U,V));
}
  
inline void IntSurf_PathPoint::SetDirections (const gp_Vec& V,
					      const gp_Dir2d& D) {

  istgt = Standard_False;
  vectg = V;
  dirtg = D;
}

inline void IntSurf_PathPoint::SetTangency (const Standard_Boolean Tang) {
  
  istgt = Tang;
}

inline void IntSurf_PathPoint::SetPassing (const Standard_Boolean Pass) {

  ispass = Pass;
}

inline const gp_Pnt& IntSurf_PathPoint::Value () const
{
  return pt;
}

inline void IntSurf_PathPoint::Value2d (Standard_Real& U,
					Standard_Real& V) const
{
  gp_XY uv(sequv->Sequence().First());
  U = uv.X();
  V = uv.Y();
}

inline Standard_Boolean IntSurf_PathPoint::IsPassingPnt () const {

  return ispass;
}

inline Standard_Boolean IntSurf_PathPoint::IsTangent () const {

  return istgt;
}

inline const gp_Vec& IntSurf_PathPoint::Direction3d () const {

  if (istgt) {throw StdFail_UndefinedDerivative();}
  return vectg;
}

inline const gp_Dir2d& IntSurf_PathPoint::Direction2d () const {

  if (istgt) {throw StdFail_UndefinedDerivative();}
  return dirtg;
}

inline Standard_Integer IntSurf_PathPoint::Multiplicity () const {

  return (sequv->Length()-1);
}

inline void IntSurf_PathPoint::Parameters (const Standard_Integer Index,
					   Standard_Real& U,
					   Standard_Real& V) const
{
  gp_XY uv(sequv->Value(Index+1));
  U = uv.X();
  V = uv.Y();
}