UnitConversion.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2012 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 "MantidKernel/DeltaEMode.h"
#include "MantidKernel/DllConfig.h"
#include "MantidKernel/Unit.h"
#include <string>
 
namespace Mantid {
namespace Kernel {
//-------------------------------------------------------------------------
// Forward declarations
//-------------------------------------------------------------------------
class Unit;
 
class MANTID_KERNEL_DLL UnitConversion {
public:
  static double run(const std::string &src, const std::string &dest, const double srcValue, const double l1,
                    const double l2, const double theta, const DeltaEMode::Type emode, const double efixed);
  static double run(const std::string &src, const std::string &dest, const double srcValue, const double l1,
                    const DeltaEMode::Type emode, const UnitParametersMap &params = {});
  static double run(Unit &srcUnit, Unit &destUnit, const double srcValue, const double l1, const DeltaEMode::Type emode,
                    const UnitParametersMap &params = {});
 
  static double convertToElasticQ(const double theta, const double efixed);
 
private:
  static double convertQuickly(const double srcValue, const double factor, const double power);
  static double convertViaTOF(Unit &srcUnit, Unit &destUnit, const double srcValue, const double l1,
                              const DeltaEMode::Type emode, const UnitParametersMap &params);
};
 
} // namespace Kernel
} // namespace Mantid