Tracker Namespace Reference

Functions
int	findVortex (int *marker, const double2 *wfc, double radius, int xDim, const double *x, int timestep)
	Find vortex locations in the condensate. More...
void	vortPos (const int *marker, std::vector< std::shared_ptr< Vtx::Vortex > > &vLocation, int xDim, const double2 *wfc)
	Accepts matrix of vortex locations as argument, returns array of x,y coordinates of locations and winding. More...
void	olPos (int *marker, int2 *vLocation, int xDim)
	Accepts matrix of vortex locations as argument, returns array of x,y coordinates of locations and winding. More...
std::shared_ptr< Vtx::Vortex >	vortPosDelta (int *cMarker, int2 *pMarker, double *x, double tolerance, int xDim)
	Changes in vortex positions. Not implemented. See vort.py for current tracking. More...
std::shared_ptr< Vtx::Vortex >	vortCentre (const std::vector< std::shared_ptr< Vtx::Vortex > > &cArray, int xDim)
	Determines the most central vortex in the condensate. More...
double	vortAngle (const std::vector< std::shared_ptr< Vtx::Vortex >> &vortCoords, const std::shared_ptr< Vtx::Vortex > central)
	Determines the rotation angle of the vortex lattice. More...
double	vortSepAvg (const std::vector< std::shared_ptr< Vtx::Vortex > > &vArray, const std::shared_ptr< Vtx::Vortex > centre)
	Determines average inter-vortex separation about the condensate centre. More...
double	sigVOL (const std::vector< std::shared_ptr< Vtx::Vortex > > &vArr, const int2 *opLatt, const double *x)
int	findOLMaxima (int *marker, double *V, double radius, int xDim, double *x)
	Finds optical lattice maxima locations. Deprecated. More...
void	vortArrange (std::vector< std::shared_ptr< Vtx::Vortex > > &vCoordsC, const std::vector< std::shared_ptr< Vtx::Vortex >> &vCoordsP)
	Ensures the vortices are tracked and arranged in the right order based on minimum distance between previous and current positions. More...
int	phaseTest (int2 vLoc, double2 *wfc, int xDim)
	Checks given coordinate for phase singularity of +ve winding. More...
void	lsFit (std::vector< std::shared_ptr< Vtx::Vortex >> &vortCoords, const double2 *wfc, int xDim)
	Least-squares vortex code estimation. Loosely based on c42f's vortutils code. More...

Detailed Description

See the source file for more info on functions.

Function Documentation

findOLMaxima()

int Tracker::findOLMaxima	(	int *	marker,
		double *	V,
		double	radius,
		int	xDim,
		double *	x
	)

Finds optical lattice maxima locations. Deprecated.

Parameters

marker	Matrix of lattice maxima locations
V	Optical lattice potential
radius	Search radius for maxima
x	X grid

findVortex()

int Tracker::findVortex	(	int *	marker,
		const double2 *	wfc,
		double	radius,
		int	xDim,
		const double *	x,
		int	timestep
	)

Find vortex locations in the condensate.

Parameters

marker	Matrix for vortex locations to nearest grid point
wfc	Wavefunction
radius	Vortex search radius in condensate
xDim	Length of X dimension
x	X grid
timestep	Timestep in simulation

Returns

Number of found vortices of either rotation direction

lsFit()

void Tracker::lsFit	(	std::vector< std::shared_ptr< Vtx::Vortex >> &	vortCoords,
		const double2 *	wfc,
		int	xDim
	)

Least-squares vortex code estimation. Loosely based on c42f's vortutils code.

Parameters

vortCoords	Array of vortices. Result returned in struct double coordinates
wfc	Wavefunction
xDim	Length of X dimension

olPos()

void Tracker::olPos	(	int *	marker,
		int2 *	vLocation,
		int	xDim
	)

Accepts matrix of vortex locations as argument, returns array of x,y coordinates of locations and winding.

Parameters

marker	Matrix containing vortex grid locations
vLocation	Array to store vortex data
xDim	Length of X dimension
wfc	Wavefunction

phaseTest()

int Tracker::phaseTest	(	int2	vLoc,
		double2 *	wfc,
		int	xDim
	)

Checks given coordinate for phase singularity of +ve winding.

Parameters

vLoc	Vortex location
wfc	Wavefunction
xDim	Length of X dimension

Returns

1 for singularity. 0 otherwise

sigVOL()

double Tracker::sigVOL	(	const std::vector< std::shared_ptr< Vtx::Vortex > > &	vArr,
		const int2 *	opLatt,
		const double *	x
	)

vortAngle()

double Tracker::vortAngle	(	const std::vector< std::shared_ptr< Vtx::Vortex >> &	vortCoords,
		const std::shared_ptr< Vtx::Vortex >	central
	)

Determines the rotation angle of the vortex lattice.

Parameters

vortCoords	Array of vortices
central	Central vortex in lattice

Returns

$0 2$, though between $0 \3$ is sufficient.

vortArrange()

void Tracker::vortArrange	(	std::vector< std::shared_ptr< Vtx::Vortex > > &	vCoordsC,
		const std::vector< std::shared_ptr< Vtx::Vortex >> &	vCoordsP
	)

Ensures the vortices are tracked and arranged in the right order based on minimum distance between previous and current positions.

Parameters

vCoordsC	Current vortex locations
vCoordsP	Previous vortex locations

vortCentre()

std::shared_ptr<Vtx::Vortex> Tracker::vortCentre	(	const std::vector< std::shared_ptr< Vtx::Vortex > > &	cArray,
		int	xDim
	)

Determines the most central vortex in the condensate.

Parameters

cArray	Array of vortices
xDim	Length of X dimension

Returns

Central vortex struct

vortPos()

void Tracker::vortPos	(	const int *	marker,
		std::vector< std::shared_ptr< Vtx::Vortex > > &	vLocation,
		int	xDim,
		const double2 *	wfc
	)

Accepts matrix of vortex locations as argument, returns array of x,y coordinates of locations and winding.

Parameters

marker	Matrix containing vortex grid locations
vLocation	Array to store vortex data
xDim	Length of X dimension
wfc	Wavefunction

vortPosDelta()

std::shared_ptr<Vtx::Vortex> Tracker::vortPosDelta	(	int *	cMarker,
		int2 *	pMarker,
		double *	x,
		double	tolerance,
		int	xDim
	)

Changes in vortex positions. Not implemented. See vort.py for current tracking.

Parameters

cMarker	Current vortex location matrix
pMarker	Previous vortex location matrix
x	X grid
tolerance	Maximum change acceptable for a vortex to have moved
xDim	Length of X dimension

Returns

Vortex struct pointer.

vortSepAvg()

double Tracker::vortSepAvg	(	const std::vector< std::shared_ptr< Vtx::Vortex > > &	vArray,
		const std::shared_ptr< Vtx::Vortex >	centre
	)

Determines average inter-vortex separation about the condensate centre.

Parameters

vArray	Vortices
centre	Central vortex in lattice

Returns

Separation distance