Description

Definition at line 102 of file IPositionBuilder.h.

Inheritance diagram for Finite2DLatticePositionBuilder:

Collaboration diagram for Finite2DLatticePositionBuilder:

Public Member Functions
	Finite2DLatticePositionBuilder (const InterferenceFinite2DLattice *p_iff)

	~Finite2DLatticePositionBuilder () override

std::vector< std::vector< double > >	generatePositions (double layer_size, double density=0.0) const

Private Member Functions
std::vector< std::vector< double > >	generatePositionsImpl (double layer_size, double density=0.0) const override

double	positionVariance () const override

Private Attributes
std::unique_ptr< InterferenceFinite2DLattice >	m_iff

Constructor & Destructor Documentation

◆ Finite2DLatticePositionBuilder()

Finite2DLatticePositionBuilder::Finite2DLatticePositionBuilder ( const InterferenceFinite2DLattice * p_iff )

Definition at line 176 of file IPositionBuilder.cpp.

     : m_iff(p_iff->clone())
 {
 }

◆ ~Finite2DLatticePositionBuilder()

Finite2DLatticePositionBuilder::~Finite2DLatticePositionBuilder ( )

overridedefault

Member Function Documentation

◆ generatePositions()

std::vector< std::vector< double > > IPositionBuilder::generatePositions	(	double	layer_size,
		double	density = `0.0`
	)		const

inherited

Definition at line 29 of file IPositionBuilder.cpp.

 {
     std::vector<std::vector<double>> positions = generatePositionsImpl(layer_size, density);
     double pos_var = positionVariance();
     if (pos_var > 0.0) {
         // random generator and distribution
         std::random_device rd;  // Will be used to obtain a seed for the random number engine
         std::mt19937 gen(rd()); // Standard mersenne_twister_engine seeded with rd()
         std::normal_distribution<double> dis(0.0, std::sqrt(pos_var));
         for (auto& position : positions) {
             for (auto& coordinate : position)
                 coordinate += dis(gen);
         }
     }
     return positions;
 }

References IPositionBuilder::generatePositionsImpl(), and IPositionBuilder::positionVariance().

Here is the call graph for this function:

◆ generatePositionsImpl()

std::vector< std::vector< double > > Finite2DLatticePositionBuilder::generatePositionsImpl	(	double	layer_size,
		double	density = `0.0`
	)		const

overrideprivatevirtual

Implements IPositionBuilder.

Definition at line 185 of file IPositionBuilder.cpp.

 {
     const auto& lattice = m_iff->lattice();
     double l1 = lattice.length1();
     double l2 = lattice.length2();
     double alpha = lattice.latticeAngle();
     double xi = lattice.rotationAngle();
  
     unsigned n1, n2;
     double sina = std::abs(std::sin(alpha));
     if (sina <= 1e-4) {
         n1 = l1 == 0.0 ? 2 : static_cast<unsigned>(2.0 * layer_size * std::sqrt(2.0) / l1);
         n2 = l2 == 0.0 ? 2 : static_cast<unsigned>(2.0 * layer_size * std::sqrt(2.0) / l2);
     } else {
         n1 = l1 == 0.0 ? 2 : static_cast<unsigned>(2.0 * layer_size * std::sqrt(2.0) / l1 / sina);
         n2 = l2 == 0.0 ? 2 : static_cast<unsigned>(2.0 * layer_size * std::sqrt(2.0) / l2 / sina);
     }
     n1 = std::min(n1, m_iff->numberUnitCells1());
     n2 = std::min(n2, m_iff->numberUnitCells2());
  
     return Generate2DLatticePoints(l1, l2, alpha, xi, n1, n2);
 }

References m_iff.

◆ positionVariance()

double Finite2DLatticePositionBuilder::positionVariance ( ) const

overrideprivatevirtual

Implements IPositionBuilder.

Definition at line 208 of file IPositionBuilder.cpp.

 {
     return m_iff->positionVariance();
 }

References m_iff.

Member Data Documentation

◆ m_iff

std::unique_ptr<InterferenceFinite2DLattice> Finite2DLatticePositionBuilder::m_iff

private

Definition at line 111 of file IPositionBuilder.h.

Referenced by generatePositionsImpl(), and positionVariance().

The documentation for this class was generated from the following files:

/home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Realspace/IPositionBuilder.h
/home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Realspace/IPositionBuilder.cpp