CoarsenBlockGenerator.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

#include "MeshGenerator.h"

class CoarsenBlockGenerator : public MeshGenerator
{
public:
  static InputParameters validParams();

  CoarsenBlockGenerator(const InputParameters & parameters);

protected:
  virtual std::unique_ptr<MeshBase> generate() override;

private:
  std::unique_ptr<MeshBase> & _input;

  const std::vector<SubdomainName> _block;

  const std::vector<unsigned int> _coarsening;

  const Point _starting_point;

  const Real _max_vol_ratio;

  const bool _verbose;

  const bool _check_output_mesh_for_nonconformality;

  virtual std::unique_ptr<MeshBase>
  recursiveCoarsen(const std::vector<subdomain_id_type> & block_ids,
                   std::unique_ptr<MeshBase> & mesh,
                   const std::vector<unsigned int> & coarsening,
                   const unsigned int max,
                   unsigned int coarse_step);
};