orientation_util.h

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/*
 * Copyright (c) 2017:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * 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 Lesser General Public License for more details.
 */
 
#ifndef __H__UG_orientation_util
#define __H__UG_orientation_util
 
#include "../grid/grid.h"
 
namespace ug{
 
 
template <class iter_t>
void InvertOrientation(Grid& grid, iter_t elemsBegin,
             iter_t elemsEnd);
 
//  EdgeOrientationMatches
 
UG_API 
bool EdgeOrientationMatches(EdgeVertices* ev, Face* f);
 
UG_API 
bool OrientationMatches(EdgeVertices* ev, Face* f);
UG_API 
bool OrientationMatches(FaceVertices* fv, Volume* v);
 
//  FixOrientation
 
template <class TFaceIterator>
void FixFaceOrientation(Grid& grid, TFaceIterator facesBegin,
            TFaceIterator facesEnd);
 
 
template<class TAAPosVRT>
bool
CheckOrientation(Volume* vol, TAAPosVRT& aaPosVRT);
 
 
template<class TVolIterator, class TAAPosVRT>
int
FixOrientation(Grid& grid, TVolIterator volsBegin, TVolIterator volsEnd,
         TAAPosVRT& aaPosVRT);
 
}// end of namespace
 
 
// include implementation
#include "orientation_util_impl.hpp"
 
#endif  //__H__UG_orientation_util