FormFactorCoherentPart.h

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// ************************************************************************** //
//
//  BornAgain: simulate and fit scattering at grazing incidence
//
//! @file      Sample/Fresnel/FormFactorCoherentPart.h
//! @brief     Defines class FormFactorCoherentPart.
//!
//! @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_CORE_MULTILAYER_FORMFACTORCOHERENTPART_H
#define BORNAGAIN_CORE_MULTILAYER_FORMFACTORCOHERENTPART_H
 
#include "Base/Types/Complex.h"
#include "Base/Vector/EigenCore.h"
#include <memory>
 
class IFresnelMap;
class IFormFactor;
class SimulationElement;
 
//! Information about single particle form factor and specular info of the embedding layer.
//! @ingroup formfactors_internal
 
class FormFactorCoherentPart
{
public:
    FormFactorCoherentPart(IFormFactor* p_ff);
    FormFactorCoherentPart(const FormFactorCoherentPart& other);
    FormFactorCoherentPart(FormFactorCoherentPart&& other);
    FormFactorCoherentPart& operator=(const FormFactorCoherentPart& other);
    FormFactorCoherentPart& operator=(FormFactorCoherentPart&& other);
    ~FormFactorCoherentPart();
 
    complex_t evaluate(const SimulationElement& sim_element) const;
#ifndef SWIG
    Eigen::Matrix2cd evaluatePol(const SimulationElement& sim_element) const;
#endif
 
    void setSpecularInfo(const IFresnelMap* p_fresnel_map, size_t layer_index);
    double radialExtension() const;
 
private:
    std::unique_ptr<IFormFactor> mP_ff;
    const IFresnelMap* mp_fresnel_map;
    size_t m_layer_index;
};
 
#endif // BORNAGAIN_CORE_MULTILAYER_FORMFACTORCOHERENTPART_H