Simple processor to calculate aperture photometry on the CCD frame. More...

#include <FastAperturePhotometry.h>

Inheritance diagram for luiza::FastAperturePhotometry:

Public Member Functions
virtual Processor *	newProcessor ()
	Return a new instance of the processor. More...

virtual void	init ()

virtual void	processData (GloriaDataContainer *data)

virtual void	check (GloriaDataContainer *data)
	Called for every loop - right after processData() call. More...

virtual void	end ()

Public Member Functions inherited from luiza::Processor
	Processor (const std::string &typeName)
	Default constructor. More...

virtual	~Processor ()
	Destructor.

virtual void	startAnalysis (GloriaDataContainer *)
	Called before first data processing loop. More...

virtual void	concludeAnalysis (GloriaDataContainer *)
	Called after all data processing loops. More...

virtual const std::string &	type () const
	Return type name for the processor (as set in constructor).

virtual const std::string &	name () const
	Return name of this processor.

virtual const std::string &	logLevelName () const
	Return name of the local verbosity level of this processor - "" if not set.

virtual StringParameters *	parameters ()
	Return parameters defined for this Processor.

virtual void	printDescription ()
	Print information about this processor in ASCII steering file format.

virtual void	printDescriptionXML (std::ostream &stream=std::cout)
	Print information about this processor in XML steering file format.

template<class T >
void	printParameters ()
	Print the parameters and their values depending on the given verbosity level.

void	printParameters ()
	Print the parameters and their values with verbosity level MESSAGE.

const std::string &	description ()
	Description of processor.

bool	isFirstEvent ()
	True if first event in processEvent(evt) - use this e.g. to initialize histograms etc.

GloriaCollectionType	getGloriaInType (const std::string &colName)
	Return the input type for the collection colName. More...

GloriaCollectionType	getGloriaOutType (const std::string &colName)
	Return the output type for the collection colName. More...

bool	isInputCollectionName (const std::string &parameterName)
	Check if parameter defines collection. More...

bool	isOutputCollectionName (const std::string &parameterName)
	True if the given parameter defines an LCIO output collection */.

Protected Member Functions
void	printEndMessage () const

Protected Member Functions inherited from luiza::Processor
void	setReturnValue (bool val)
	Set the return value for this processor - typically at end of processEvent(). More...

void	setReturnValue (const std::string &name, bool val)
	Set a named return value for this processor - typically at end of processEvent() More...

template<class T >
void	registerProcessorParameter (const std::string &name, const std::string &description, T &parameter, const T &defaultVal, int setSize=0)
	Register a steering variable for this processor - call in constructor of processor. More...

void	registerInputCollection (const GloriaCollectionType &type, const std::string &name, const std::string &description, std::string &parameter, const std::string &defaultVal, int setSize=0)
	Register parameter describing input collection. More...

void	registerOutputCollection (const GloriaCollectionType &type, const std::string &name, const std::string &description, std::string &parameter, const std::string &defaultVal, int setSize=0)
	Register parameter describing output collection. More...

void	registerInputCollections (const GloriaCollectionType &type, const std::string &name, const std::string &description, StringVec &parameter, const StringVec &defaultVal, int setSize=0)
	Register parameter describing input collections. More...

template<class T >
void	registerOptionalParameter (const std::string &name, const std::string &description, T &parameter, const T &defaultVal, int setSize=0)
	Same as registerProcessorParameter except that the parameter is optional. More...

bool	parameterSet (const std::string &name)
	Tests whether the parameter has been set in the steering file.

template<class T >
void	message (const std::string &message) const
	Print message according to verbosity level. More...

template<class T >
void	message (const std::basic_ostream< char, std::char_traits< char > > &m) const
	Similar to message(const std::string& message) More...

std::stringstream &	log () const
	Returns an empty stringstream that is used by the message method.

virtual void	setProcessorParameters (StringParameters *parameters)
	Allow friend class CCProcessor to change/reset processor parameters.

virtual void	updateParameters ()
	Allow friend class CCProcessor to update processor parameters.

virtual void	updateTelescopeParameters (std::string name)
	Allow to update processor parameters for given telescope name. More...

virtual void	updateTelescopeParameters (GloriaFitsHeader *header)
	Update processor parameters based on FITS header. More...

Protected Attributes
string	_imageCollectionName
	Name of the image collection containing images.

string	_listCollectionName
	Name of the table collection containing object lists.

string	_outputCollectionName
	Name of the output object list collection.

bool	_permanentCollection
	Flag the output collection to be permanent.

float	_apertureRadius
	Radius of circular aperture used for signal counting in pixels.

std::vector< float >	_annulusRadii
	Inner and outer radius of the annulus used for background subtraction.

int	_backgroundSampling
	Background sampling factor. More...

int	_frameDivision
	Frame division for background calculation. More...

int	_interpolationOrder
	Polinomial order used to interpolate background map.

std::string	_brightnessColumn
	Name of the column to store object signal.

std::vector< float >	_objectPositions
	Object positions (two numbers, RA,DEC in degree, per object)

bool	_useTelescopeParameters
	Use network configuration file to update processor parameters. More...

bool	_usingObjectList
	Flag indicating input method used.

std::vector< int >	_apShiftX
	Pixel shifts for aperture definition (to speed up the code)

Protected Attributes inherited from luiza::Processor
std::string	_description
	Describes what the processor does. Set in constructor.

Detailed Description

Simple processor to calculate aperture photometry on the CCD frame.

Processor to calculate aperture photometry on CCD images in the input collection. If input object collection is specified, photometry is calculated for all objects in the object list. For the targeted analysis, coordinates of the objects of interest can be specified. However, valid astrometry has to be found in the image fits header in that case. Two approaches for background calculation are possible: either it is calculated from media of pixels in annulus around object position (when AnnulusRadii is specified) or from the background map calculated for the whole image (as in BackgroundImage processor).

Input: Processor uses images from Gloria data collection

Parameters

ImageCollectionName	- Name of the collection containing input images
ListCollectionName	- Name of the collection containing GloriaObjectList
ObjectPositions	Positions of the considered objects in (Ra,Dec), should be given in degrees (N x 2 numbers).

Algorithm parameters: User can modify processor performance by settin the aperture radius (for signal counting) and annulus radii (background subtraction). Background is calculated as signal median from the pixels inside annulus.

Parameters

ApertureRadius	- Radius of circular aperture used for signal counting in pixels. Distance is always calculated from/to the center of the pixel, to reduce systematic effects due to changing number of pixels considered.
AnnulusRadii	- Inner and outer radius of the annulus used for background subtraction.
BackgroundSampling	- Background level calculation for the whole image can be sped up by considering only 1/BackgroundSampling of pixels.
FrameDivision	- Background for the image is calculated for FrameDivision x FrameDivision subimages and then interpolated between them.
InterpolationOrder	- polinomial order used to interpolate between centers of subframes when calculating background values on the image

Output: Object lists are stored in the output collection

Parameters

BrightnessColumn	- Name of the column in which object brightness should be stored ('Signal' by default).
OutputCollectionName	- Name of the collection where object table will be stored
PermanentCollection	- Flag output collection, as permanent, not deleted after loop is finished (default is false)

Member Function Documentation

void luiza::FastAperturePhotometry::check ( GloriaDataContainer * )

virtual

Called for every loop - right after processData() call.

Can be used to check processing and/or produce check plots.

Reimplemented from luiza::Processor.

void luiza::FastAperturePhotometry::end ( )

virtual

Called after data processing for clean up.

Reimplemented from luiza::Processor.

References printEndMessage().

void luiza::FastAperturePhotometry::init ( )

virtual

Called at the begin of the job before anything is read. Use to initialize the processor, e.g. book histograms.

Reimplemented from luiza::Processor.

References _annulusRadii, _apertureRadius, _apShiftX, _imageCollectionName, _listCollectionName, _objectPositions, _outputCollectionName, _usingObjectList, luiza::Processor::name(), and luiza::Processor::parameters().

virtual Processor* luiza::FastAperturePhotometry::newProcessor ( )

inlinevirtual

Return a new instance of the processor.

Has to be implemented by subclasses.

Implements luiza::Processor.

void luiza::FastAperturePhotometry::printEndMessage ( ) const

protected

Test method for const.

Referenced by end().

void luiza::FastAperturePhotometry::processData ( GloriaDataContainer * data )

virtual

Called for every data loop

Reimplemented from luiza::Processor.

Member Data Documentation

int luiza::FastAperturePhotometry::_backgroundSampling

protected

Background sampling factor.

Parameter used to speed up background level calculation. Only every BackgroundSampling pixel is used.

Referenced by processData().

int luiza::FastAperturePhotometry::_frameDivision

protected

Frame division for background calculation.

Background is calculated for FrameDivision x FrameDivision subimages and then interpolated between them

Referenced by processData().

bool luiza::FastAperturePhotometry::_useTelescopeParameters

protected

Use network configuration file to update processor parameters.

When true, network configuration file is checked for each analysed image and processor parameters are changed if default parameter values are defined for given instrument/telescope.

Referenced by processData().

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

FastAperturePhotometry.h
FastAperturePhotometry.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

Member Data Documentation