vector_tools_integrate_difference.h

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// ---------------------------------------------------------------------
//
// Copyright (C) 1998 - 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.
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#ifndef dealii_vector_tools_integrate_difference_h
#define dealii_vector_tools_integrate_difference_h
 
 
#include <deal.II/base/config.h>
 
#include <deal.II/numerics/vector_tools_common.h>
 
DEAL_II_NAMESPACE_OPEN
 
template <int dim, int spacedim>
DEAL_II_CXX20_REQUIRES((concepts::is_valid_dim_spacedim<dim, spacedim>))
class DoFHandler;
 
template <int dim, typename Number>
class Function;
template <int dim, int spacedim>
class Mapping;
template <int dim>
class Quadrature;
 
template <int dim, int spacedim>
DEAL_II_CXX20_REQUIRES((concepts::is_valid_dim_spacedim<dim, spacedim>))
class Triangulation;
 
namespace hp
{
  template <int dim, int spacedim>
  class MappingCollection;
  template <int dim>
  class QCollection;
} // namespace hp
 
 
namespace VectorTools
{
  template <int dim, class InVector, class OutVector, int spacedim>
  DEAL_II_CXX20_REQUIRES(concepts::is_dealii_vector_type<InVector> &&
                           concepts::is_writable_dealii_vector_type<OutVector>)
  void integrate_difference(
    const Mapping<dim, spacedim> &                           mapping,
    const DoFHandler<dim, spacedim> &                        dof,
    const InVector &                                         fe_function,
    const Function<spacedim, typename InVector::value_type> &exact_solution,
    OutVector &                                              difference,
    const Quadrature<dim> &                                  q,
    const NormType &                                         norm,
    const Function<spacedim, double> *                       weight   = nullptr,
    const double                                             exponent = 2.);
 
  template <int dim, class InVector, class OutVector, int spacedim>
  DEAL_II_CXX20_REQUIRES(concepts::is_dealii_vector_type<InVector> &&
                           concepts::is_writable_dealii_vector_type<OutVector>)
  void integrate_difference(
    const DoFHandler<dim, spacedim> &                        dof,
    const InVector &                                         fe_function,
    const Function<spacedim, typename InVector::value_type> &exact_solution,
    OutVector &                                              difference,
    const Quadrature<dim> &                                  q,
    const NormType &                                         norm,
    const Function<spacedim, double> *                       weight   = nullptr,
    const double                                             exponent = 2.);
 
  template <int dim, class InVector, class OutVector, int spacedim>
  DEAL_II_CXX20_REQUIRES(concepts::is_dealii_vector_type<InVector> &&
                           concepts::is_writable_dealii_vector_type<OutVector>)
  void integrate_difference(
    const hp::MappingCollection<dim, spacedim> &             mapping,
    const DoFHandler<dim, spacedim> &                        dof,
    const InVector &                                         fe_function,
    const Function<spacedim, typename InVector::value_type> &exact_solution,
    OutVector &                                              difference,
    const hp::QCollection<dim> &                             q,
    const NormType &                                         norm,
    const Function<spacedim, double> *                       weight   = nullptr,
    const double                                             exponent = 2.);
 
  template <int dim, class InVector, class OutVector, int spacedim>
  DEAL_II_CXX20_REQUIRES(concepts::is_dealii_vector_type<InVector> &&
                           concepts::is_writable_dealii_vector_type<OutVector>)
  void integrate_difference(
    const DoFHandler<dim, spacedim> &                        dof,
    const InVector &                                         fe_function,
    const Function<spacedim, typename InVector::value_type> &exact_solution,
    OutVector &                                              difference,
    const hp::QCollection<dim> &                             q,
    const NormType &                                         norm,
    const Function<spacedim, double> *                       weight   = nullptr,
    const double                                             exponent = 2.);
 
  template <int dim, int spacedim, class InVector>
  DEAL_II_CXX20_REQUIRES(concepts::is_dealii_vector_type<InVector>)
  double compute_global_error(const Triangulation<dim, spacedim> &tria,
                              const InVector &cellwise_error,
                              const NormType &norm,
                              const double    exponent = 2.);
 
} // namespace VectorTools
 
DEAL_II_NAMESPACE_CLOSE
 
#endif // dealii_vector_tools_integrate_difference_h