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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Sample/Aggregate/Interference2DSuperLattice.h
//! @brief Defines class Interference2DSuperLattice.
//!
//! @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_SAMPLE_AGGREGATE_INTERFERENCE2DSUPERLATTICE_H
#define BORNAGAIN_SAMPLE_AGGREGATE_INTERFERENCE2DSUPERLATTICE_H
#include "Sample/Aggregate/IInterference.h"
#include "Sample/Lattice/Lattice2D.h"
//! Interference function of a 2D superlattice with a configurable interference function for
//! each lattice site.
class Interference2DSuperLattice : public IInterference {
public:
Interference2DSuperLattice(const Lattice2D& lattice, unsigned size_1, unsigned size_2);
Interference2DSuperLattice(double length_1, double length_2, double alpha, double xi,
unsigned size_1, unsigned size_2);
~Interference2DSuperLattice() override;
#ifndef SWIG
Interference2DSuperLattice* clone() const override;
std::vector<const INode*> nodeChildren() const override;
#endif // SWIG
std::string className() const final { return "Interference2DSuperLattice"; }
std::vector<ParaMeta> parDefs() const final
{
return {{"Length1", "nm"}, {"Length2", "nm"}, {"Alpha", "rad"}, {"Xi", "rad"}};
}
void setSubstructureIFF(const IInterference& sub_iff);
const IInterference& substructureIFF() const;
double structureFactor(const R3& q, double outer_iff = 1.0) const override;
unsigned domainSize1() const { return m_size_1; }
unsigned domainSize2() const { return m_size_2; }
void setIntegrationOverXi(bool integrate_xi);
bool integrationOverXi() const { return m_integrate_xi; }
const Lattice2D& lattice() const;
private:
double iff_without_dw(const R3& q) const override;
double iff_without_dw(const R3& q, double xi) const;
double interferenceForXi(double xi, double qx, double qy, double outer_iff) const;
bool m_integrate_xi; //!< Integrate over the orientation xi
std::unique_ptr<Lattice2D> m_lattice;
std::unique_ptr<IInterference> m_substructure; //!< IFF of substructure
unsigned m_size_1, m_size_2; //!< Size of the finite lattice in lattice units
};
#endif // BORNAGAIN_SAMPLE_AGGREGATE_INTERFERENCE2DSUPERLATTICE_H
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