EquilibriumConstantInterpolator.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 "MooseTypes.h"
#include "LeastSquaresFitBase.h"
#include "LinearInterpolation.h"

class EquilibriumConstantInterpolator : public LeastSquaresFitBase
{
public:
  EquilibriumConstantInterpolator(const std::vector<Real> & temperature,
                                  const std::vector<Real> & logk,
                                  const std::string type,
                                  const Real no_value = 500.0);

  virtual Real sample(Real T) override;
  ADReal sample(const ADReal & T);

  Real sampleDerivative(Real T);

protected:
  virtual void fillMatrix() override;

  enum class FitTypeEnum
  {
    FOURTHORDER,
    MAIERKELLY,
    LINEAR,
    PIECEWISELINEAR
  } _fit_type;

  std::unique_ptr<LinearInterpolation> _linear_interp;
};