interpolation2D.h

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/*
 *
 *    Copyright (c) 2020,2022
 *      SMASH Team
 *
 *    GNU General Public License (GPLv3 or later)
 *
 */
 
#ifndef SRC_INCLUDE_SMASH_INTERPOLATION2D_H_
#define SRC_INCLUDE_SMASH_INTERPOLATION2D_H_
 
#include <vector>
 
#include "gsl/gsl_spline2d.h"
 
namespace smash {
 
class InterpolateData2DSpline {
 public:
  InterpolateData2DSpline(const std::vector<double>& x,
                          const std::vector<double>& y,
                          const std::vector<double>& z);
 
  ~InterpolateData2DSpline();
 
  double operator()(double xi, double yi) const;
 
 private:
  double first_x_;
  double last_x_;
  double first_y_;
  double last_y_;
 
  gsl_interp_accel* xacc_;
  gsl_interp_accel* yacc_;
  gsl_spline2d* spline_;
};
 
}  // namespace smash
 
#endif  // SRC_INCLUDE_SMASH_INTERPOLATION2D_H_