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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Sim/Scan/PhysicalScan.h
//! @brief Declares interface PhysicalScan.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2023
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifndef BORNAGAIN_SIM_SCAN_PHYSICALSCAN_H
#define BORNAGAIN_SIM_SCAN_PHYSICALSCAN_H
#include "Sim/Scan/BeamScan.h"
#include <memory>
class IDistribution1D;
class IFootprint;
struct ParameterSample;
//! Abstract base class for alpha and lambda scans.
class PhysicalScan : public BeamScan {
public:
PhysicalScan(const Scale& axis);
~PhysicalScan() override;
void setWavelength(double lambda);
//! Distribution with absolute width, **complementing** wavelength values
void setWavelengthDistribution(const IDistribution1D& distr);
void setGrazingAngle(double alpha);
//! Distribution with absolute width, **complementing** grazing angle values
void setGrazingAngleDistribution(const IDistribution1D& distr);
void setAzimuthalAngle(double phi);
//! Distribution with absolute width, **complementing** azimuthal angle values
void setAzimuthalAngleDistribution(const IDistribution1D& distr);
void setFootprint(const IFootprint* footprint);
#ifndef SWIG
PhysicalScan* clone() const override = 0;
std::vector<const INode*> nodeChildren() const override;
const IFootprint* commonFootprint() const;
const IFootprint* footprintAt(size_t i) const;
double commonWavelength() const;
double wavelengthAt(size_t i) const;
double commonGrazingAngle() const;
double grazingAngleAt(size_t i) const;
double commonAzimuthalAngle() const;
double azimuthalAngleAt(size_t i) const;
// needed for export
const IDistribution1D* wavelengthDistribution() const { return m_lambda_distrib.get(); }
const IDistribution1D* grazingAngleDistribution() const { return m_alpha_distrib.get(); }
const IDistribution1D* azimuthalAngleDistribution() const { return m_phi_distrib.get(); }
size_t nDistributionSamples() const override;
protected:
void copyPhysicalScan(PhysicalScan* dest) const; //!< Used by subclass::clone
std::unique_ptr<IDistribution1D> m_lambda_distrib;
std::unique_ptr<IDistribution1D> m_alpha_distrib;
std::unique_ptr<IDistribution1D> m_phi_distrib;
private:
bool isCommonFootprint() const;
bool isCommonWavelength() const;
bool isCommonGrazingAngle() const;
bool isCommonAzimuthalAngle() const;
#endif // SWIG
};
#endif // BORNAGAIN_SIM_SCAN_PHYSICALSCAN_H
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