SampledOutput.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html

#pragma once

// MOOSE includes
#include "AdvancedOutput.h"

class MooseMesh;

// libMesh forward declarations
namespace libMesh
{
template <typename T>
class NumericVector;
class MeshFunction;
}

class SampledOutput : public AdvancedOutput
{
public:
  static InputParameters validParams();

  SampledOutput(const InputParameters & parameters);

  virtual ~SampledOutput();

  virtual void initialSetup() override;
  virtual void meshChanged() override;
  virtual void outputStep(const ExecFlagType & type) override;

protected:
  virtual void updateSample();

  virtual void setFileBaseInternal(const std::string & file_base) override;

  const unsigned int _refinements;

  const bool _using_external_sampling_file;

  const bool _change_position;

  bool _use_sampled_output;

private:
  void initSample();

  void cloneMesh();

  bool isSampledAtNodes(const FEType & fe_type) const;

  std::vector<std::vector<std::unique_ptr<libMesh::MeshFunction>>> _mesh_functions;

  std::vector<std::vector<unsigned int>> _variable_numbers_in_system;

  Point _position;

  bool _sampling_mesh_changed;

  bool _mesh_subdomains_match;

  bool _serialize;

  std::unique_ptr<EquationSystems> _sampling_es;

  std::unique_ptr<MooseMesh> _sampling_mesh_ptr;

  /* Each of the MeshFunctions keeps a reference to this vector, the vector is updated for the
   * current system
   * and variable before the MeshFunction is applied. This allows for the same MeshFunction object
   * to be
   * re-used, unless the mesh has changed due to adaptivity */
  std::unique_ptr<NumericVector<Number>> _serialized_solution;
};