//===========================================================================
// Copyright (C) 1998, 2000-2007, 2010, 2011, 2012 SINTEF ICT, Applied
// Mathematics, Norway.
//
// This file is part of GoTools
//
// This program is free software; you can redistribute it and/or          
// modify it under the terms of the GNU General Public License            
// as published by the Free Software Foundation version 2 of the License. 
//
// This program is distributed in the hope that it will be useful,        
// but WITHOUT ANY WARRANTY; without even the implied warranty of         
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          
// GNU General Public License for more details.                           
//
// You should have received a copy of the GNU General Public License      
// along with this program; if not, see <http://www.gnu.org/licenses>
//
// Contact information: E-mail: tor.dokken@sintef.no                      
// SINTEF ICT, Department of Applied Mathematics,                         
// P.O. Box 124 Blindern,                                                 
// 0314 Oslo, Norway.                                                     
//
// Other licenses are also available for this software, notably licenses
// for:
// - Building commercial software.                                        
// - Building software whose source code you wish to keep private.        
//===========================================================================

#include "GoTools/topology/tpFace.h"
#include "GoTools/topology/tpEdge.h"

using namespace Go;

// //---------------------------------------------------------------------------
// void tpFace::turnFace(vector<tpFace*>& turned)
// //---------------------------------------------------------------------------
// {
//   int ki;
//   for (ki=0; ki<turned.size(); ki++)
//     if (turned[ki] == this)
//       return;   // This face is already turned.

//   //  std::cout << "Turning face: " << this << std::endl;
//   turnOrientation();  // Turn the current face
//   turned.push_back(this);

//   // Reverse the direction of all edges, and turn neighbouring surfaces.
//   vector<shared_ptr<tpEdge> > start_edges = startEdges();
//   for (ki=0; ki<start_edges.size(); ki++)
//     {
//       tpEdge *e0 = start_edges[ki].get();
//       bool finished = false;
//       while (!finished)
// 	{
// 	  e0->turnOrientation();
// 	  if (e0->twin())
// 	    e0->twin()->face()->turnFace(turned);
// 	  e0 = e0->next();
// 	  if (e0 == start_edges[ki].get())
// 	    finished = true;
// 	}
//     }
// }
