inf_fe_map.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2025 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner

// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.

// This library 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.

// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



#ifndef LIBMESH_INF_FE_MAP_H
#define LIBMESH_INF_FE_MAP_H

#include "libmesh/libmesh_config.h"

#ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS

// Local includes
#include "libmesh/fe_type.h"
#include "libmesh/point.h"

// C++ includes
#include <vector>

namespace libMesh
{

// forward declarations
class Elem;
class FEComputeData;



class InfFEMap
{
public:
  static Point map (const unsigned int dim,
                    const Elem * inf_elem,
                    const Point & reference_point);

  static Point inverse_map (const unsigned int dim,
                            const Elem * elem,
                            const Point & p,
                            const Real tolerance = TOLERANCE,
                            const bool secure = true);


  static void inverse_map (const unsigned int dim,
                           const Elem * elem,
                           const std::vector<Point> & physical_points,
                           std::vector<Point> &       reference_points,
                           const Real tolerance = TOLERANCE,
                           const bool secure = true);

  static Real eval(Real v,
                   Order o,
                   unsigned int i);

  static Real eval_deriv(Real v,
                         Order o,
                         unsigned int i);
};


} // namespace libMesh


#endif // ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS


#endif // LIBMESH_INF_FE_MAP_H