// 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 <IntSurf_Couple.hxx>

IntWalk_IWLine::IntWalk_IWLine (const IntSurf_Allocator& theAllocator) :
  line (new IntSurf_LineOn2S (theAllocator)),
  closed (Standard_False),
  hasFirst (Standard_False), hasLast (Standard_False),
  firstIndex (-1), lastIndex (-1),
  indextg (-1),
  istgtbeg (Standard_False), istgtend (Standard_False)
{
}

void IntWalk_IWLine::Reverse()
{
  line->Reverse();
  Standard_Integer N = line->NbPoints();
  Standard_Integer NbCouple = couple.Length();
  for (Standard_Integer i = 1; i <= NbCouple; i++) {
    couple(i) = IntSurf_Couple(N - couple(i).First() + 1,
			       couple(i).Second());
  }
}