DynamicKuboToyabe.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2007 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
//----------------------------------------------------------------------
// Includes
//----------------------------------------------------------------------
#include "MantidAPI/IFunctionMW.h"
#include "MantidAPI/IFunctionWithLocation.h"
#include "MantidAPI/IPeakFunction.h"
#include "MantidCurveFitting/DllConfig.h"
#include <cmath>
 
namespace Mantid {
namespace CurveFitting {
namespace Functions {
class MANTID_CURVEFITTING_DLL DynamicKuboToyabe : public API::ParamFunction, public API::IFunction1D {
public:
  DynamicKuboToyabe();
 
  std::string name() const override { return "DynamicKuboToyabe"; }
  const std::string category() const override { return "Muon\\MuonGeneric"; }
 
  void setAttribute(const std::string &attName, const Attribute &) override;
 
protected:
  void function1D(double *out, const double *xValues, const size_t nData) const override;
  void functionDeriv1D(API::Jacobian *out, const double *xValues, const size_t nData) override;
  void functionDeriv(const API::FunctionDomain &domain, API::Jacobian &jacobian) override;
  void init() override;
  void setActiveParameter(size_t i, double value) override;
 
private:
  // Evaluate DKT function for a given t, G, F, v and eps
  double getDKT(double t, double G, double F, double v, double eps) const;
 
  double m_eps;
  double m_minEps, m_maxEps;
};
 
} // namespace Functions
} // namespace CurveFitting
} // namespace Mantid