DiffRotDiscreteCircle.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
 
#include "MantidAPI/IFunction.h"
#include "MantidAPI/ImmutableCompositeFunction.h"
#include "MantidCurveFitting/Functions/ElasticDiffRotDiscreteCircle.h"
#include "MantidCurveFitting/Functions/InelasticDiffRotDiscreteCircle.h"
// standard library (N/A)
 
namespace Mantid {
namespace CurveFitting {
namespace Functions {
/* Class representing the dynamics structure factor of a particle undergoing
 * discrete jumps on N-sites evenly distributed in a circle. The particle can
 * only
 * jump to neighboring sites. This is the most common type of discrete
 * rotational diffusion in a circle.
 */
class MANTID_CURVEFITTING_DLL DiffRotDiscreteCircle : public API::ImmutableCompositeFunction {
public:
  std::string name() const override { return "DiffRotDiscreteCircle"; }
 
  const std::string category() const override { return "QuasiElastic"; }
 
  virtual int version() const { return 1; }
 
  void init() override;
 
  virtual void trickleDownAttribute(const std::string &name);
 
  virtual void declareAttribute(const std::string &name, const API::IFunction::Attribute &defaultValue);
 
  void setAttribute(const std::string &name, const API::IFunction::Attribute &att) override;
 
private:
  std::shared_ptr<ElasticDiffRotDiscreteCircle> m_elastic;
 
  std::shared_ptr<InelasticDiffRotDiscreteCircle> m_inelastic;
};
 
} // namespace Functions
} // namespace CurveFitting
} // namespace Mantid