edge_inf_edge2.h

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// The libMesh Finite Element Library.
// Copyright (C) 2002-2024 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_EDGE_INF_EDGE2_H
#define LIBMESH_EDGE_INF_EDGE2_H

#include "libmesh/libmesh_common.h"

#ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS

// Local includes
#include "libmesh/edge.h"

namespace libMesh
{

class InfEdge2 : public Edge
{
public:

  explicit
  InfEdge2 (Elem * p=nullptr) :
    Edge(InfEdge2::n_nodes(), p, _nodelinks_data) {}

  InfEdge2 (InfEdge2 &&) = delete;
  InfEdge2 (const InfEdge2 &) = delete;
  InfEdge2 & operator= (const InfEdge2 &) = delete;
  InfEdge2 & operator= (InfEdge2 &&) = delete;
  virtual ~InfEdge2() = default;

  virtual Point master_point (const unsigned int i) const override
  {
    libmesh_assert_less(i, this->n_nodes());
    return Point(0,i,0);
  }

  virtual unsigned int n_sub_elem() const override { return 1; }

  virtual bool is_vertex(const unsigned int i) const override;

  virtual bool is_edge(const unsigned int i) const override;

  virtual bool is_face(const unsigned int i) const override;

  virtual bool is_node_on_side(const unsigned int n,
                               const unsigned int s) const override;

  virtual std::vector<unsigned int> nodes_on_side(const unsigned int s) const override;

  virtual bool is_node_on_edge(const unsigned int n,
                               const unsigned int e) const override;

  virtual ElemType type() const override { return INFEDGE2; }

  virtual Order default_order() const override;

  virtual void connectivity(const unsigned int se,
                            const IOPackage iop,
                            std::vector<dof_id_type> & conn) const override;

  virtual void flip(BoundaryInfo *) override final {};

#ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS

  virtual bool infinite () const override { return true; }

  virtual Point origin () const override;

  virtual bool is_mid_infinite_edge_node(const unsigned int i) const
    override { return (i > 0); }

#endif


protected:

  Node * _nodelinks_data[2];



#ifdef LIBMESH_ENABLE_AMR

  virtual Real embedding_matrix (const unsigned int,
                                 const unsigned int,
                                 const unsigned int) const override
  { libmesh_not_implemented(); return 0.; }

  LIBMESH_ENABLE_TOPOLOGY_CACHES;

#endif // LIBMESH_ENABLE_AMR

};




// ------------------------------------------------------------
// InfEdge2 class member functions
inline
Point InfEdge2::origin () const
{
  return ( this->point(0)*2 - this->point(1) );
}


} // namespace libMesh

#endif

#endif // LIBMESH_EDGE_INF_EDGE2_H