PiecewiseBilinear.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 "Function.h"
 
template <typename>
class ColumnMajorMatrixTempl;
typedef ColumnMajorMatrixTempl<Real> ColumnMajorMatrix;
class BilinearInterpolation;
 
class PiecewiseBilinear : public Function
{
public:
  static InputParameters validParams();
 
  PiecewiseBilinear(const InputParameters & parameters);
 
  // Necessary for using forward declaration of BilinearInterpolation in std::unique_ptr
  virtual ~PiecewiseBilinear();
 
  using Function::value;
  virtual Real value(Real t, const Point & pt) const override;
  virtual ADReal value(const ADReal & t, const ADPoint & pt) const override;
 
  static void parse(const std::string & data_file_name,
                    std::vector<Real> & x,
                    std::vector<Real> & y,
                    ColumnMajorMatrix & z,
                    const std::string & object_name);
 
  const int _xaxis;
  const int _yaxis;
 
private:
  std::unique_ptr<BilinearInterpolation> _bilinear_interp;
  const std::string _data_file_name;
  const int _axis;
  const bool _axisValid;
  const bool _yaxisValid;
  const bool _xaxisValid;
  const Real _scale_factor;
  const bool _radial;
 
  template <typename T, typename P>
  T valueInternal(T t, const P & p) const;
};