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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Sim/Background/ConstantBackground.h
//! @brief Defines class ConstantBackground.
//!
//! @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_BACKGROUND_CONSTANTBACKGROUND_H
#define BORNAGAIN_SIM_BACKGROUND_CONSTANTBACKGROUND_H
#include "Sim/Background/IBackground.h"
//! Constant background, to be added to simulated scattering.
//!
class ConstantBackground : public IBackground {
public:
ConstantBackground(std::vector<double> P);
ConstantBackground(double background_value);
#ifndef SWIG
ConstantBackground* clone() const override;
#endif // SWIG
std::string className() const final { return "ConstantBackground"; }
std::vector<ParaMeta> parDefs() const final { return {{"BackgroundValue", ""}}; }
double backgroundValue() const { return m_background_value; }
double addBackground(double intensity) const override;
std::string validate() const override;
private:
const double& m_background_value;
};
#endif // BORNAGAIN_SIM_BACKGROUND_CONSTANTBACKGROUND_H
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