MFEMSamplerBase.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

#ifdef MOOSE_MFEM_ENABLED

#pragma once

#include "MFEMVectorPostprocessor.h"

class MFEMSamplerBase : public MFEMVectorPostprocessor
{
public:
  static InputParameters validParams();

  void initialSetup() override;

  void initialize() override {}

  void finalize() override;

protected:
  enum class PointLocationCode : unsigned int
  {
    INTERNAL = 0,
    BORDER = 1,
    NOT_FOUND = 2,
  };

  MFEMSamplerBase(const InputParameters & parameters,
                  const std::vector<Point> & points,
                  mfem::ParMesh & mesh);

  virtual void finalizeValues() = 0;

  const std::vector<Point> _query_points;
  mfem::ParMesh & _mesh;
  mfem::FindPointsGSLIB _finder;
  mfem::Ordering::Type _points_ordering;
  mfem::Vector _points;
  std::vector<std::reference_wrapper<VectorPostprocessorValue>> _declared_points;
};

#endif // MOOSE_MFEM_ENABLED