data_out_resample.h

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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2021 - 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Part of the source code is dual licensed under Apache-2.0 WITH
// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
// governing the source code and code contributions can be found in
// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
//
// ------------------------------------------------------------------------
 
#ifndef dealii_data_out_resample_h
#define dealii_data_out_resample_h
 
 
 
#include <deal.II/base/config.h>
 
#include <deal.II/base/mpi_remote_point_evaluation.h>
#include <deal.II/base/partitioner.h>
 
#include <deal.II/numerics/data_out.h>
#include <deal.II/numerics/data_out_dof_data.h>
 
#include <memory>
 
DEAL_II_NAMESPACE_OPEN
 
template <int dim, int patch_dim, int spacedim>
class DataOutResample
  : public DataOut_DoFData<dim, patch_dim, spacedim, spacedim>
{
public:
  DataOutResample(const Triangulation<patch_dim, spacedim> &patch_tria,
                  const Mapping<patch_dim, spacedim>       &patch_mapping);
 
  void
  update_mapping(const Mapping<dim, spacedim> &mapping,
                 const unsigned int            n_subdivisions = 0);
 
  void
  build_patches(
    const Mapping<dim, spacedim> &mapping,
    const unsigned int            n_subdivisions = 0,
    const typename DataOut<patch_dim, spacedim>::CurvedCellRegion
      curved_region =
        DataOut<patch_dim, spacedim>::CurvedCellRegion::curved_boundary);
 
  void
  build_patches(
    const typename DataOut<patch_dim, spacedim>::CurvedCellRegion
      curved_region =
        DataOut<patch_dim, spacedim>::CurvedCellRegion::curved_boundary);
 
protected:
  virtual const std::vector<typename DataOutBase::Patch<patch_dim, spacedim>> &
  get_patches() const override;
 
private:
  DoFHandler<patch_dim, spacedim> patch_dof_handler;
 
  const ObserverPointer<const Mapping<patch_dim, spacedim>> patch_mapping;
 
  DataOut<patch_dim, spacedim> patch_data_out;
 
  Utilities::MPI::RemotePointEvaluation<dim, spacedim> rpe;
 
  std::shared_ptr<Utilities::MPI::Partitioner> partitioner;
 
  std::vector<types::global_dof_index> point_to_local_vector_indices;
 
  ObserverPointer<const Mapping<dim, spacedim>> mapping;
};
 
DEAL_II_NAMESPACE_CLOSE
 
#endif