fe_dgp_monomial.h

// ---------------------------------------------------------------------
//
// Copyright (C) 2004 - 2018 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, 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.
// The full text of the license can be found in the file LICENSE.md at
// the top level directory of deal.II.
//
// ---------------------------------------------------------------------

#ifndef dealii_fe_dgp_monomial_h
#define dealii_fe_dgp_monomial_h

#include <deal.II/base/config.h>

#include <deal.II/base/polynomials_p.h>

#include <deal.II/fe/fe_poly.h>

DEAL_II_NAMESPACE_OPEN


template <int dim>
class FE_DGPMonomial : public FE_Poly<PolynomialsP<dim>, dim>
{
public:
  FE_DGPMonomial(const unsigned int p);

  virtual std::string
  get_name() const override;

  virtual std::vector<std::pair<unsigned int, unsigned int>>
  hp_vertex_dof_identities(const FiniteElement<dim> &fe_other) const override;

  virtual std::vector<std::pair<unsigned int, unsigned int>>
  hp_line_dof_identities(const FiniteElement<dim> &fe_other) const override;

  virtual std::vector<std::pair<unsigned int, unsigned int>>
  hp_quad_dof_identities(const FiniteElement<dim> &fe_other) const override;

  virtual bool
  hp_constraints_are_implemented() const override;

  virtual FiniteElementDomination::Domination
  compare_for_face_domination(
    const FiniteElement<dim> &fe_other) const override;

  virtual void
  get_interpolation_matrix(const FiniteElement<dim> &source,
                           FullMatrix<double> &      matrix) const override;

  virtual void
  get_face_interpolation_matrix(const FiniteElement<dim> &source,
                                FullMatrix<double> &matrix) const override;

  virtual void
  get_subface_interpolation_matrix(const FiniteElement<dim> &source,
                                   const unsigned int        subface,
                                   FullMatrix<double> &matrix) const override;

  virtual bool
  has_support_on_face(const unsigned int shape_index,
                      const unsigned int face_index) const override;

  virtual std::size_t
  memory_consumption() const override;

  virtual std::unique_ptr<FiniteElement<dim, dim>>
  clone() const override;

private:
  static std::vector<unsigned int>
  get_dpo_vector(const unsigned int degree);

  void
  initialize_restriction();
};

DEAL_II_NAMESPACE_CLOSE

#endif