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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Sim/Residual/IIntensityFunction.h
//! @brief Defines and implements the interface class IIntensityFunction.
//! and its child classes IntensityFunctionLog, IntensityFunctionSqrt
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifndef BORNAGAIN_SIM_RESIDUAL_IINTENSITYFUNCTION_H
#define BORNAGAIN_SIM_RESIDUAL_IINTENSITYFUNCTION_H
//! Interface for applying arbitrary function to the measured intensity.
class IIntensityFunction {
public:
virtual ~IIntensityFunction();
#ifndef SWIG
virtual IIntensityFunction* clone() const = 0;
#endif // SWIG
virtual double evaluate(double value) const = 0;
};
//! Algorithm for applying log function to the measured intensity.
class IntensityFunctionLog : public IIntensityFunction {
public:
#ifndef SWIG
IntensityFunctionLog* clone() const override;
#endif // SWIG
double evaluate(double value) const override;
};
//! Algorithm for applying sqrt function to the measured intensity.
class IntensityFunctionSqrt : public IIntensityFunction {
public:
#ifndef SWIG
IntensityFunctionSqrt* clone() const override;
#endif // SWIG
double evaluate(double value) const override;
};
#endif // BORNAGAIN_SIM_RESIDUAL_IINTENSITYFUNCTION_H
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