BIE::GalaxyModelOneD Class Reference

Simple test galaxy model with one flux and line-of-sight caching. More...

#include <GalaxyModelOneD.h>

Inheritance diagram for BIE::GalaxyModelOneD:

[legend]

Collaboration diagram for BIE::GalaxyModelOneD:

[legend]

List of all members.

Public Member Functions
	GalaxyModelOneD (int ndim, int mdim, SampleDistribution *_dist)
	Constructor.
	GalaxyModelOneD ()
	Null constructor.
	~GalaxyModelOneD ()
	Destructor.
void	SetKnots (int num)
	Reset number of integration points.
void	LogLineOfSight (double Smin)
	Logarithmic spacing of integration knots along the line of sight.
void	LinearLineOfSight ()
	Linear spacing of integration knots along the line of sight.
void	SetExtinction (double A, double Z)
	Radial and Vertical size of extinction slab.
void	ExtinctionCoefficient (double ak)
	Set value of extinction coefficient (nominally k-band).
void	CacheLimit (int num)
	Maximum number of cache elements (default=0, unlimited).
void	ModelLimits (double amin, double amax, double hmin, double hmax)
	Set limiting values for model parameters.
void	MaximumDistance (double rmax)
	Set line-of-sight extent.
void	ResetCache ()
	Reset model cache.
virtual double	NormEval (double x, double y, SampleDistribution *d=NULL)
	Compute normalization of tiles.
virtual double	NormEval (double x, double y)
	Compute normalization for point likelihood.
virtual double	NormEvalMeasure (double x, double y)
	Integration measure.
vector< double >	Evaluate (double x, double y, SampleDistribution *d=NULL)
	Main method returning source density.
string	ParameterDescription (int i)
	Label parameters.
int	DataDimension ()
	Dimension of data attributes.
void	Initialize (State &)
	Initialize state dependent part of calculation.
void	Initialize (vector< double > &w, vector< vector< double > > &p)
	From component weights and component parameter vectors.
Static Public Attributes
Global parameters
static double	LMAG
	Minimum magnitude (default 6);.
static double	HMAG
	Maximum magnitude (default 16);.
static double	A1
	Extinction scale length (default 20 [kpc]).
static double	Z1
	Extinction scale height (default 100 [pc]).
static double	K0
	Standard candle magnitude (default -4.0).
static double	SIGK
	Std dev in standard candle magnitudes (default 0.25).
static int	NUM
	Number of integration knots for Jacobi quadrature (default 200).
static double	ALPHA
	Jacobi quadrature parameters (default: 0, 0).
static double	BETA
static double	R0
	Observers position (kpc) (default 8.0).
static double	RMAX
static double	AK
	Extinction (mags) (default 0.1).
static double	AMIN
	Limits for model parameters.
static double	AMAX
	Maximum scale length.
static double	HMIN
	Minimum scale height.
static double	HMAX
	Maximum scale height.
static bool	logs
	Log line of sight.
static double	smin
	Minimum los.
Protected Member Functions
virtual void	manageCache (coordPair &)
	Maintain memory store for cache elements.
virtual void	generate (double L, double B, SampleDistribution *sd=NULL)
	Compute values along the line-of-sight.
virtual void	compute_bins ()
	Compute the bin predictions for the given model paraemeters.
void	check_bounds ()
	Check for in-bounds parameters and set flag.
Protected Attributes
bool	cache_full
	Cache limit exceeded.
unsigned int	cache_limit
	Maximum number of sight lines kept in cache.
int	M
	Maximum number of components in mixture.
int	Mcur
	Current number of components in mixture.
int	Ndim
	Number of model dimensions.
JacoQuad *	intgr
	Integrator.
vector< double >	wt
	Component weights.
vector< vector< double > >	pt
	Parameter vectors for each component.
bool	good_bounds
	Flag is true if parameter values are in bounds.
mmapGalCM	cache
	The line-of-sight element cache.
mmapGalCM::iterator	mit
	Cache iterator.
deque< coordPair >	cacheList
	List of cache coordinates (for management).
CacheGalaxyModel *	current
	Current cache element.
EvalType	type
	Evaluation type (e.g. binned or point).
int	nbins
	Histogram components.
vector< double >	lowb
	Low value for bin edges.
vector< double >	highb
	Low value for bin edges.
Static Protected Attributes
static double	Log10
	Constants.
static double	onedeg
	Number of radians per degree.
static const char *	LENGTH_FIELDNAME
	Constants related to record type.
static const char *	HEIGHT_FIELDNAME
	Descriptor string for scale height.
static const char *	PARAM_NAMES []
	Descriptor strings for all other parameters.
Friends
class	boost::serialization::access

---

Detailed Description

Simple test galaxy model with one flux and line-of-sight caching.

The line-of-sight quantities that are parameter independent are precomputed and cached for each line of sight.

This is implemented with a hash map and a FIFO queue that is set by default to an infinite number of elements. This may be changed using the CacheLimit() member function.

---

Member Function Documentation

void BIE::GalaxyModelOneD::Initialize

(

State &

)

[virtual]

Initialize state dependent part of calculation.

From State vector

Implements BIE::Model.

---

Member Data Documentation

double BIE::GalaxyModelOneD::AMIN [static]

Limits for model parameters.

Minimum scale length

bool BIE::GalaxyModelOneD::logs [static]

Log line of sight.

Flag

double BIE::GalaxyModelOneD::Log10 [static, protected]

Constants.

const char* BIE::GalaxyModelOneD::LENGTH_FIELDNAME [static, protected]

Constants related to record type.

Descriptor string for scale length

int BIE::GalaxyModelOneD::nbins [protected]

Histogram components.

Number of bins

---

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

• /home/weinberg/src/BIE/include/GalaxyModelOneD.h