FunctionPeriodicBoundary.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 "Moose.h"

#include "libmesh/point.h"
#include "libmesh/periodic_boundary_base.h"

#include <array>
#include <vector>

class FEProblemBase;
class Function;

class FunctionPeriodicBoundary : public libMesh::PeriodicBoundaryBase
{
public:
  FunctionPeriodicBoundary(FEProblemBase & subproblem,
                           const std::vector<std::string> & fn_names,
                           const std::vector<std::string> & inv_fn_names);

  FunctionPeriodicBoundary(const FunctionPeriodicBoundary & o, TransformationType t = FORWARD);

  virtual libMesh::Point get_corresponding_pos(const libMesh::Point & pt) const override;

  virtual std::unique_ptr<libMesh::PeriodicBoundaryBase> clone(TransformationType t) const override;

private:
  static std::array<const Function *, 3> getFunctions(FEProblemBase & problem,
                                                      const std::vector<std::string> & names);

  const unsigned int _dim;

  const std::array<const Function *, 3> _tr;
  const std::array<const Function *, 3> _inv_tr;
};