vector_tools_constraints.h

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// ---------------------------------------------------------------------
//
// Copyright (C) 1998 - 2021 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_vector_tools_constraints_h
#define dealii_vector_tools_constraints_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/dofs/dof_handler.h>
 
#include <map>
#include <set>
 
DEAL_II_NAMESPACE_OPEN
 
template <typename number>
class AffineConstraints;
template <int dim, int spacedim>
struct StaticMappingQ1;
template <int dim, typename Number>
class Function;
template <int dim, int spacedim>
class Mapping;
 
 
namespace VectorTools
{
 
  template <int dim, int spacedim>
  void
  compute_nonzero_normal_flux_constraints(
    const DoFHandler<dim, spacedim> &   dof_handler,
    const unsigned int                  first_vector_component,
    const std::set<types::boundary_id> &boundary_ids,
    const std::map<types::boundary_id, const Function<spacedim, double> *>
      &                           function_map,
    AffineConstraints<double> &   constraints,
    const Mapping<dim, spacedim> &mapping =
      (ReferenceCells::get_hypercube<dim>()
         .template get_default_linear_mapping<dim, spacedim>()));
 
  template <int dim, int spacedim>
  void
  compute_no_normal_flux_constraints(
    const DoFHandler<dim, spacedim> &   dof_handler,
    const unsigned int                  first_vector_component,
    const std::set<types::boundary_id> &boundary_ids,
    AffineConstraints<double> &         constraints,
    const Mapping<dim, spacedim> &      mapping =
      (ReferenceCells::get_hypercube<dim>()
         .template get_default_linear_mapping<dim, spacedim>()));
 
  template <int dim, int spacedim>
  void
  compute_nonzero_tangential_flux_constraints(
    const DoFHandler<dim, spacedim> &   dof_handler,
    const unsigned int                  first_vector_component,
    const std::set<types::boundary_id> &boundary_ids,
    const std::map<types::boundary_id, const Function<spacedim, double> *>
      &                           function_map,
    AffineConstraints<double> &   constraints,
    const Mapping<dim, spacedim> &mapping =
      (ReferenceCells::get_hypercube<dim>()
         .template get_default_linear_mapping<dim, spacedim>()));
 
  template <int dim, int spacedim>
  void
  compute_normal_flux_constraints(
    const DoFHandler<dim, spacedim> &   dof_handler,
    const unsigned int                  first_vector_component,
    const std::set<types::boundary_id> &boundary_ids,
    AffineConstraints<double> &         constraints,
    const Mapping<dim, spacedim> &      mapping =
      (ReferenceCells::get_hypercube<dim>()
         .template get_default_linear_mapping<dim, spacedim>()));
 
} // namespace VectorTools
 
DEAL_II_NAMESPACE_CLOSE
 
#endif // dealii_vector_tools_constraints_h