Forward declaration. More...

#include <Feather.h>

Public Member Functions
	Feather ()
	default constructor More...

	Feather (const casacore::ImageInterface< casacore::Float > &SDImage, const casacore::ImageInterface< casacore::Float > &INTImage, casacore::Float sdScale=1.0)
	Constructor. More...

virtual	~Feather ()
	Destructor. More...

void	clearWeightFlags ()
	Clear the weight flags. More...

void	setSDScale (casacore::Float sdscale=1.0)
	set the SDimage and casacore::Int images More...

void	setSDImage (const casacore::ImageInterface< casacore::Float > &SDImage)

void	setINTImage (const casacore::ImageInterface< casacore::Float > &IntImage)

casacore::Bool	setEffectiveDishDiam (const casacore::Float xdiam, const casacore::Float ydiam=-1.0)
	set and get effective dish diameter to be used in feathering function setEffectiveDishDiam will return false if you are trying to assign a finer resolution than what the original data came with More...

void	getEffectiveDishDiam (casacore::Float &xdiam, casacore::Float &ydiam)

void	getFTCutSDImage (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, const casacore::Bool radial=false)
	Get the 1-D slices of amplitude along the x and y axis of the FFT of images if radial is set to true then the 1D slice is the the circular average rather that X and Y cuts...only the x-values are valid then Note the SD image is already feathered by its beam..you cannot get unfeathered SD data as it implies deconvolution. More...

void	getFTCutIntImage (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, casacore::Bool radial=false)

void	getFeatherSD (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, casacore::Bool radial=false, casacore::Bool normalize=true)
	Get the 1-D slices of the feathering function that will be applied on SD and INTerf data If normalize=false for the SD then the value for Jy/beam correction to final beam size is multiplied to the function. More...

void	getFeatherINT (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, casacore::Bool radial=false)

void	getFeatheredCutSD (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, casacore::Bool radial=false)
	Get 1-D slices of the feathered data... More...

void	getFeatheredCutINT (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, casacore::Bool radial=false)

void	convolveINT (const casacore::GaussianBeam &newHighBeam)
	This function convolves the INT image to the new GaussianBeam So the INT image stored in this object is going to be replaced by the new convolved image. More...

casacore::Bool	saveFeatheredImage (const casacore::String &imagename)
	write the feathered image to disk More...

Static Public Member Functions
static void	getCutXY (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, const casacore::ImageInterface< casacore::Float > &image)

static void	getRadialCut (casacore::Vector< casacore::Float > &radius, casacore::Vector< casacore::Float > &radialAmp, const casacore::ImageInterface< casacore::Float > &image)

static void	feather (const casacore::String &image, const casacore::ImageInterface< casacore::Float > &high, const casacore::ImageInterface< casacore::Float > &low, const casacore::Float &sdScale=1.0, const casacore::String &lowPSF="", const casacore::Bool useDefault=true, const casacore::String &vpTable="", casacore::Float effSDDiam=-1.0, const casacore::Bool lowpassfiltersd=false)

static casacore::Double	worldFreq (const casacore::CoordinateSystem &cs, casacore::Int spectralpix=0)

Private Member Functions
void	fillXVectors (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &uy) const

void	calcCWeightImage ()

void	applyFeather ()

Static Private Member Functions
static void	applyDishDiam (casacore::ImageInterface< casacore::Complex > &image, casacore::GaussianBeam &beam, casacore::Float effDiam, casacore::ImageInterface< casacore::Float > &newbeam, casacore::Vector< casacore::Quantity > &extraconv)

static void	getCutXY (casacore::Vector< casacore::Float > &ux, casacore::Vector< casacore::Float > &xamp, casacore::Vector< casacore::Float > &uy, casacore::Vector< casacore::Float > &yamp, casacore::ImageInterface< casacore::Complex > &ftimage)

static void	getRadialCut (casacore::Vector< casacore::Float > &radialAmp, casacore::ImageInterface< casacore::Complex > &ftimage)

static void	getLowBeam (const casacore::ImageInterface< casacore::Float > &low0, const casacore::String &lowPSF, const casacore::Bool useDefaultPB, const casacore::String &vpTableStr, casacore::GaussianBeam &lBeam)
	calculate the complex weight image to apply on the interf image More...

static void	getRadialUVval (const casacore::Int npix, const casacore::IPosition &imshape, const casacore::CoordinateSystem &csys, casacore::Vector< casacore::Float > &radius)

Private Attributes
casacore::CountedPtr < casacore::ImageInterface < casacore::Float > >	lowIm_p

casacore::CountedPtr < casacore::ImageInterface < casacore::Float > >	lowImOrig_p

casacore::CountedPtr < casacore::ImageInterface < casacore::Float > >	highIm_p

casacore::CountedPtr < casacore::ImageInterface < casacore::Complex > >	cwImage_p

casacore::CountedPtr < casacore::ImageInterface < casacore::Complex > >	cwHighIm_p

casacore::GaussianBeam	hBeam_p

casacore::GaussianBeam	lBeam_p

casacore::GaussianBeam	lBeamOrig_p

casacore::Float	dishDiam_p

casacore::Bool	cweightCalced_p

casacore::Bool	cweightApplied_p

casacore::Float	sdScale_p

casacore::CoordinateSystem	csysHigh_p

Detailed Description

Forward declaration.

Class that contains functions needed for feathering

Definition at line 47 of file Feather.h.

Constructor & Destructor Documentation

casa::Feather::Feather ( )

default constructor

casa::Feather::Feather	(	const casacore::ImageInterface< casacore::Float > &	SDImage,
		const casacore::ImageInterface< casacore::Float > &	INTImage,
		casacore::Float	sdScale = `1.0`
	)

Constructor.

virtual casa::Feather::~Feather ( )

virtual

Destructor.

Member Function Documentation

static void casa::Feather::applyDishDiam	(	casacore::ImageInterface< casacore::Complex > &	image,
		casacore::GaussianBeam &	beam,
		casacore::Float	effDiam,
		casacore::ImageInterface< casacore::Float > &	newbeam,
		casacore::Vector< casacore::Quantity > &	extraconv
	)

staticprivate

void casa::Feather::applyFeather ( )

private

void casa::Feather::calcCWeightImage ( )

private

void casa::Feather::clearWeightFlags ( )

Clear the weight flags.

Used when changing between the SDimage and the dirty image.

void casa::Feather::convolveINT ( const casacore::GaussianBeam & newHighBeam )

This function convolves the INT image to the new GaussianBeam So the INT image stored in this object is going to be replaced by the new convolved image.

static void casa::Feather::feather	(	const casacore::String &	image,
		const casacore::ImageInterface< casacore::Float > &	high,
		const casacore::ImageInterface< casacore::Float > &	low,
		const casacore::Float &	sdScale = `1.0`,
		const casacore::String &	lowPSF = `""`,
		const casacore::Bool	useDefault = `true`,
		const casacore::String &	vpTable = `""`,
		casacore::Float	effSDDiam = `-1.0`,
		const casacore::Bool	lowpassfiltersd = `false`
	)

static

void casa::Feather::fillXVectors	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	uy
	)		const

private

static void casa::Feather::getCutXY	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		const casacore::ImageInterface< casacore::Float > &	image
	)

static

static void casa::Feather::getCutXY	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		casacore::ImageInterface< casacore::Complex > &	ftimage
	)

staticprivate

void casa::Feather::getEffectiveDishDiam	(	casacore::Float &	xdiam,
		casacore::Float &	ydiam
	)

void casa::Feather::getFeatheredCutINT	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		casacore::Bool	radial = `false`
	)

void casa::Feather::getFeatheredCutSD	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		casacore::Bool	radial = `false`
	)

Get 1-D slices of the feathered data...

note for SD this should return the same values as getFTCutSDImage

void casa::Feather::getFeatherINT	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		casacore::Bool	radial = `false`
	)

void casa::Feather::getFeatherSD	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		casacore::Bool	radial = `false`,
		casacore::Bool	normalize = `true`
	)

Get the 1-D slices of the feathering function that will be applied on SD and INTerf data If normalize=false for the SD then the value for Jy/beam correction to final beam size is multiplied to the function.

void casa::Feather::getFTCutIntImage	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		casacore::Bool	radial = `false`
	)

void casa::Feather::getFTCutSDImage	(	casacore::Vector< casacore::Float > &	ux,
		casacore::Vector< casacore::Float > &	xamp,
		casacore::Vector< casacore::Float > &	uy,
		casacore::Vector< casacore::Float > &	yamp,
		const casacore::Bool	radial = `false`
	)

Get the 1-D slices of amplitude along the x and y axis of the FFT of images if radial is set to true then the 1D slice is the the circular average rather that X and Y cuts...only the x-values are valid then Note the SD image is already feathered by its beam..you cannot get unfeathered SD data as it implies deconvolution.

static void casa::Feather::getLowBeam	(	const casacore::ImageInterface< casacore::Float > &	low0,
		const casacore::String &	lowPSF,
		const casacore::Bool	useDefaultPB,
		const casacore::String &	vpTableStr,
		casacore::GaussianBeam &	lBeam
	)

staticprivate

calculate the complex weight image to apply on the interf image

static void casa::Feather::getRadialCut	(	casacore::Vector< casacore::Float > &	radius,
		casacore::Vector< casacore::Float > &	radialAmp,
		const casacore::ImageInterface< casacore::Float > &	image
	)

static

static void casa::Feather::getRadialCut	(	casacore::Vector< casacore::Float > &	radialAmp,
		casacore::ImageInterface< casacore::Complex > &	ftimage
	)

staticprivate

static void casa::Feather::getRadialUVval	(	const casacore::Int	npix,
		const casacore::IPosition &	imshape,
		const casacore::CoordinateSystem &	csys,
		casacore::Vector< casacore::Float > &	radius
	)

staticprivate

casacore::Bool casa::Feather::saveFeatheredImage ( const casacore::String & imagename )

write the feathered image to disk

casacore::Bool casa::Feather::setEffectiveDishDiam	(	const casacore::Float	xdiam,
		const casacore::Float	ydiam = `-1.0`
	)

set and get effective dish diameter to be used in feathering function setEffectiveDishDiam will return false if you are trying to assign a finer resolution than what the original data came with

void casa::Feather::setINTImage ( const casacore::ImageInterface< casacore::Float > & IntImage )

void casa::Feather::setSDImage ( const casacore::ImageInterface< casacore::Float > & SDImage )

void casa::Feather::setSDScale ( casacore::Float sdscale = 1.0 )

set the SDimage and casacore::Int images

static casacore::Double casa::Feather::worldFreq	(	const casacore::CoordinateSystem &	cs,
		casacore::Int	spectralpix = `0`
	)

static

Member Data Documentation

casacore::CoordinateSystem casa::Feather::csysHigh_p

private

Definition at line 133 of file Feather.h.

casacore::Bool casa::Feather::cweightApplied_p

private

Definition at line 131 of file Feather.h.

casacore::Bool casa::Feather::cweightCalced_p

private

Definition at line 130 of file Feather.h.

casacore::CountedPtr<casacore::ImageInterface<casacore::Complex> > casa::Feather::cwHighIm_p

private

Definition at line 117 of file Feather.h.

casacore::CountedPtr<casacore::ImageInterface<casacore::Complex> > casa::Feather::cwImage_p

private

Definition at line 116 of file Feather.h.

casacore::Float casa::Feather::dishDiam_p

private

Definition at line 129 of file Feather.h.

casacore::GaussianBeam casa::Feather::hBeam_p

private

Definition at line 126 of file Feather.h.

casacore::CountedPtr<casacore::ImageInterface<casacore::Float> > casa::Feather::highIm_p

private

Definition at line 115 of file Feather.h.

casacore::GaussianBeam casa::Feather::lBeam_p

private

Definition at line 127 of file Feather.h.

casacore::GaussianBeam casa::Feather::lBeamOrig_p

private

Definition at line 128 of file Feather.h.

casacore::CountedPtr<casacore::ImageInterface<casacore::Float> > casa::Feather::lowIm_p

private

Definition at line 113 of file Feather.h.

casacore::CountedPtr<casacore::ImageInterface<casacore::Float> > casa::Feather::lowImOrig_p

private

Definition at line 114 of file Feather.h.

casacore::Float casa::Feather::sdScale_p

private

Definition at line 132 of file Feather.h.

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

casa/code/synthesis/MeasurementEquations/Feather.h

Public Member Functions

Static Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation