fe_bdm.h

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// ---------------------------------------------------------------------
//
// Copyright (C) 2003 - 2023 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_bdm_h
#define dealii_fe_bdm_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/base/geometry_info.h>
#include <deal.II/base/polynomial.h>
#include <deal.II/base/polynomials_bdm.h>
#include <deal.II/base/tensor_product_polynomials.h>
 
#include <deal.II/fe/fe.h>
#include <deal.II/fe/fe_poly_tensor.h>
 
#include <vector>
 
DEAL_II_NAMESPACE_OPEN
 
template <int dim>
class FE_BDM : public FE_PolyTensor<dim>
{
public:
  FE_BDM(const unsigned int p);
 
  virtual std::string
  get_name() const override;
 
  virtual std::unique_ptr<FiniteElement<dim, dim>>
  clone() const override;
 
  // documentation inherited from the base class
  virtual void
  convert_generalized_support_point_values_to_dof_values(
    const std::vector<Vector<double>> &support_point_values,
    std::vector<double> &              nodal_values) const override;
 
private:
  static std::vector<unsigned int>
  get_dpo_vector(const unsigned int degree);
 
  static std::vector<bool>
  get_ria_vector(const unsigned int degree);
  void
  initialize_support_points(const unsigned int bdm_degree);
  std::vector<std::vector<double>> test_values_face;
  std::vector<std::vector<double>> test_values_cell;
 
  void
  initialize_quad_dof_index_permutation_and_sign_change();
};
 
DEAL_II_NAMESPACE_CLOSE
 
#endif