fe_bdm.h

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// -----------------------------------------------------------------------------
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception OR LGPL-2.1-or-later
// Copyright (C) 2010 - 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Detailed license information governing the source code and contributions
// can be found in LICENSE.md and CONTRIBUTING.md at the top level directory.
//
// -----------------------------------------------------------------------------
 
#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