casa::AWVisResampler Class Reference

#include <AWVisResampler.h>

Inheritance diagram for casa::AWVisResampler:

List of all members.

Public Member Functions
	AWVisResampler ()
virtual	~AWVisResampler ()
	AWVisResampler(const CFStore& cfs): VisibilityResampler(cfs) {}.
virtual VisibilityResamplerBase *	clone ()
virtual void	copyMaps (const AWVisResampler &other)
	AWVisResampler(const AWVisResampler& other): VisibilityResampler(other),cfMap_p(), conjCFMap_p() {copy(other);}.
virtual void	copy (const VisibilityResamplerBase &other)
	VisibilityResampler& operator=(const VisibilityResampler& other);.
virtual void	copy (const AWVisResampler &other)
AWVisResampler &	operator= (const AWVisResampler &other)
virtual void	setCFMaps (const Vector< Int > &cfMap, const Vector< Int > &conjCFMap)
virtual void	DataToGrid (Array< DComplex > &griddedData, VBStore &vbs, Matrix< Double > &sumwt, const Bool &dopsf, Bool useConjFreqCF=False)
	virtual void setConvFunc(const CFStore& cfs) {convFuncStore_p = cfs;};
virtual void	DataToGrid (Array< Complex > &griddedData, VBStore &vbs, Matrix< Double > &sumwt, const Bool &dopsf, Bool useConjFreqCF=False)
virtual void	GridToData (VBStore &vbs, const Array< Complex > &griddedData)
Protected Member Functions
virtual Complex	getConvFuncVal (const Cube< Double > &convFunc, const Matrix< Double > &uvw, const Int &irow, const Vector< Int > &pixel)
	virtual void GridToData(VBStore& vbs, Array<Complex>& griddedData);
Complex	getCFArea (Complex *__restrict__ &convFuncV, Double &wVal, Vector< Int > &scaledSupport, Vector< Float > &scaledSampling, Vector< Double > &off, Vector< Int > &convOrigin, Vector< Int > &cfShape, Double &sinDPA, Double &cosDPA)
template<class T >
Complex	accumulateOnGrid (Array< T > &grid, Complex *__restrict__ &convFuncV, Complex &nvalue, Double &wVal, Vector< Int > &scaledSupport, Vector< Float > &scaledSampling, Vector< Double > &off, Vector< Int > &convOrigin, Vector< Int > &cfShape, Vector< Int > &loc, Vector< Int > &igrdpos, Double &sinDPA, Double &cosDPA, Bool &finitePointingOffset, Bool dopsf)
template<class T >
void	XInnerLoop (const Int *scaleSupport, const Float *scaledSampling, const Double *off, const Int *loc, Complex &cfArea, const Int *__restrict__ iGrdPosPtr, Complex *__restrict__ &convFuncV, const Int *convOrigin, Complex &nvalue, Double &wVal, Bool &, Bool &, T *__restrict__ gridStore, Int *iloc, Complex &norm, Int *igrdpos)
template<class T >
void	accumulateFromGrid (T &nvalue, const T *__restrict__ &grid, Vector< Int > &iGrdPos, Complex *__restrict__ &convFuncV, Double &wVal, Vector< Int > &scaledSupport, Vector< Float > &scaledSampling, Vector< Double > &off, Vector< Int > &convOrigin, Vector< Int > &cfShape, Vector< Int > &loc, Complex &phasor, Double &sinDPA, Double &cosDPA, Bool &finitePointingOffset, Matrix< Complex > &cached_phaseGrad_p)
Private Member Functions
template<class T >
void	DataToGridImpl_p (Array< T > &griddedData, VBStore &vb, Matrix< Double > &sumwt, const Bool &dopsf, Bool)
	Re-sample the griddedData on the VisBuffer (a.k.a de-gridding).
void	sgrid (Vector< Double > &pos, Vector< Int > &loc, Vector< Double > &off, Complex &phasor, const Int &irow, const Matrix< Double > &uvw, const Double &dphase, const Double &freq, const Vector< Double > &scale, const Vector< Double > &offset, const Vector< Float > &sampling)
Bool	onGrid (const Int &nx, const Int &ny, const Int &nw, const Vector< Int > &loc, const Vector< Int > &support)
template<class T >
void	SETVEC (Vector< T > &lhs, const Vector< T > &rhs)
	Array assignment operator in CASACore requires lhs.nelements() == 0 or lhs.nelements()=rhs.nelements()
Complex	getFrom4DArray (const Complex *__restrict__ &store, const Int *iPos, const Int *inc)
	Internal methods to address a 4D array.
Complex	getFrom4DArray (const Complex *__restrict__ &store, const Vector< Int > &iPos, const Vector< Int > &inc)
	The following two methods are called in the innermost loop.
DComplex	getFrom4DArray (const DComplex *__restrict__ &store, const Vector< Int > &iPos, const Vector< Int > &inc)
template<class T >
void	addTo4DArray (T *__restrict__ &store, const Int *__restrict__ &iPos, const Vector< Int > &inc, Complex &nvalue, Complex &wt) __restrict__
Bool	reindex (const Vector< Int > &in, Vector< Int > &out, const Double &sinDPA, const Double &cosDPA, const Vector< Int > &Origin, const Vector< Int > &size)
	This rotates the convolution function by rotating the co-ordinate system.
Complex *	getConvFunc_p (Vector< Int > &cfShape, CFBuffer &cfb, Double &wVal, Int &fndx, Int &wndx, PolMapType &mNdx, PolMapType &conjMNdx, Int &ipol, uInt &mRow)
void	cachePhaseGrad_p (const Vector< Double > &pointingOffset, const Vector< Int > &cfShape, const Vector< Int > &convOrigin, const Double &cfRefFreq, const Double &imRefFreq)
Private Attributes
Vector< Int >	gridInc_p
	----------------------------Private parts-------------------------------------
Vector< Int >	cfInc_p
Matrix< Complex >	cached_phaseGrad_p
Vector< Double >	cached_PointingOffset_p

---

Detailed Description

Definition at line 44 of file AWVisResampler.h.

---

Constructor & Destructor Documentation

casa::AWVisResampler::AWVisResampler

(

)

[inline]

Definition at line 47 of file AWVisResampler.h.

References cached_PointingOffset_p, casa::Vector< T >::resize(), casa::VisibilityResamplerBase::runTimeDG_p, and casa::VisibilityResamplerBase::runTimeG_p.

Referenced by clone().

virtual casa::AWVisResampler::~AWVisResampler

(

)

[inline, virtual]

AWVisResampler(const CFStore& cfs): VisibilityResampler(cfs) {}.

Definition at line 52 of file AWVisResampler.h.

---

Member Function Documentation

template<class T >

void casa::AWVisResampler::accumulateFromGrid	(	T &	nvalue,
		const T *__restrict__ &	grid,
		Vector< Int > &	iGrdPos,
		Complex *__restrict__ &	convFuncV,
		Double &	wVal,
		Vector< Int > &	scaledSupport,
		Vector< Float > &	scaledSampling,
		Vector< Double > &	off,
		Vector< Int > &	convOrigin,
		Vector< Int > &	cfShape,
		Vector< Int > &	loc,
		Complex &	phasor,
		Double &	sinDPA,
		Double &	cosDPA,
		Bool &	finitePointingOffset,
		Matrix< Complex > &	cached_phaseGrad_p
	)		[protected]

template<class T >

Complex casa::AWVisResampler::accumulateOnGrid	(	Array< T > &	grid,
		Complex *__restrict__ &	convFuncV,
		Complex &	nvalue,
		Double &	wVal,
		Vector< Int > &	scaledSupport,
		Vector< Float > &	scaledSampling,
		Vector< Double > &	off,
		Vector< Int > &	convOrigin,
		Vector< Int > &	cfShape,
		Vector< Int > &	loc,
		Vector< Int > &	igrdpos,
		Double &	sinDPA,
		Double &	cosDPA,
		Bool &	finitePointingOffset,
		Bool	dopsf
	)		[protected]

template<class T >

void casa::AWVisResampler::addTo4DArray	(	T *__restrict__ &	store,
		const Int *__restrict__ &	iPos,
		const Vector< Int > &	inc,
		Complex &	nvalue,
		Complex &	wt
	)		[inline, private]

T *tmp=store+(iPos[0] + iPos[1]*inc[1] + iPos[2]*inc[2] +iPos[3]*inc[3]); *tmp += nvalue*wt;

Definition at line 260 of file AWVisResampler.h.

void casa::AWVisResampler::cachePhaseGrad_p	(	const Vector< Double > &	pointingOffset,
		const Vector< Int > &	cfShape,
		const Vector< Int > &	convOrigin,
		const Double &	cfRefFreq,
		const Double &	imRefFreq
	)		[private]

virtual VisibilityResamplerBase* casa::AWVisResampler::clone

(

)

[inline, virtual]

Reimplemented from casa::VisibilityResampler.

Definition at line 54 of file AWVisResampler.h.

References AWVisResampler().

virtual void casa::AWVisResampler::copy

(

const VisibilityResamplerBase &

other

)

[inline, virtual]

VisibilityResampler& operator=(const VisibilityResampler& other);.

const Vector<Int> cfmap=other.getCFMap(); const Vector<Int> conjcfmap = other.getConjCFMap();

setCFMaps(cfmap,conjcfmap);

Reimplemented from casa::VisibilityResampler.

Definition at line 62 of file AWVisResampler.h.

Referenced by copy(), and operator=().

virtual void casa::AWVisResampler::copy

(

const AWVisResampler &

other

)

[inline, virtual]

Definition at line 71 of file AWVisResampler.h.

References cached_phaseGrad_p, cached_PointingOffset_p, copy(), and SETVEC().

virtual void casa::AWVisResampler::copyMaps

(

const AWVisResampler &

other

)

[inline, virtual]

AWVisResampler(const AWVisResampler& other): VisibilityResampler(other),cfMap_p(), conjCFMap_p() {copy(other);}.

Definition at line 60 of file AWVisResampler.h.

References casa::VisibilityResamplerBase::cfMap_p, casa::VisibilityResamplerBase::conjCFMap_p, and setCFMaps().

virtual void casa::AWVisResampler::DataToGrid	(	Array< DComplex > &	griddedData,
		VBStore &	vbs,
		Matrix< Double > &	sumwt,
		const Bool &	dopsf,
		Bool	useConjFreqCF = False
	)		[inline, virtual]

virtual void setConvFunc(const CFStore& cfs) {convFuncStore_p = cfs;};

---

Re-sample the griddedData on the VisBuffer (a.k.a gridding).

In this class, these just call the private templated version. The first variant grids onto a double precision grid while the second one does it on a single precision grid.

Note that the following calls allow using any CFStore object for gridding while de-gridding uses the internal convFuncStore_p object. virtual void DataToGrid(Array<DComplex>& griddedData, VBStore& vbs, Matrix<Double>& sumwt, const Bool& dopsf, CFStore& cfs) {DataToGridImpl_p(griddedData, vbs, sumwt,dopsf,cfs);}

virtual void DataToGrid(Array<Complex>& griddedData, VBStore& vbs, Matrix<Double>& sumwt, const Bool& dopsf, CFStore& cfs) {DataToGridImpl_p(griddedData, vbs, sumwt,dopsf,cfs);}

Simulating defaulting CFStore arguemnt in the above calls to convFuncStore_p

***TEMP REMOVAL OF DComplex gridder*****

Reimplemented from casa::VisibilityResampler.

Definition at line 115 of file AWVisResampler.h.

References DataToGridImpl_p().

virtual void casa::AWVisResampler::DataToGrid	(	Array< Complex > &	griddedData,
		VBStore &	vbs,
		Matrix< Double > &	sumwt,
		const Bool &	dopsf,
		Bool	useConjFreqCF = False
	)		[inline, virtual]

Reimplemented from casa::VisibilityResampler.

Definition at line 119 of file AWVisResampler.h.

References DataToGridImpl_p().

template<class T >

void casa::AWVisResampler::DataToGridImpl_p	(	Array< T > &	griddedData,
		VBStore &	vb,
		Matrix< Double > &	sumwt,
		const Bool &	dopsf,
		Bool
	)		[private]

Re-sample the griddedData on the VisBuffer (a.k.a de-gridding).

Referenced by DataToGrid().

Complex casa::AWVisResampler::getCFArea	(	Complex *__restrict__ &	convFuncV,
		Double &	wVal,
		Vector< Int > &	scaledSupport,
		Vector< Float > &	scaledSampling,
		Vector< Double > &	off,
		Vector< Int > &	convOrigin,
		Vector< Int > &	cfShape,
		Double &	sinDPA,
		Double &	cosDPA
	)		[protected]

Complex* casa::AWVisResampler::getConvFunc_p	(	Vector< Int > &	cfShape,
		CFBuffer &	cfb,
		Double &	wVal,
		Int &	fndx,
		Int &	wndx,
		PolMapType &	mNdx,
		PolMapType &	conjMNdx,
		Int &	ipol,
		uInt &	mRow
	)		[private]

virtual Complex casa::AWVisResampler::getConvFuncVal	(	const Cube< Double > &	convFunc,
		const Matrix< Double > &	uvw,
		const Int &	irow,
		const Vector< Int > &	pixel
	)		[inline, protected, virtual]

virtual void GridToData(VBStore& vbs, Array<Complex>& griddedData);

Definition at line 131 of file AWVisResampler.h.

Complex casa::AWVisResampler::getFrom4DArray	(	const Complex *__restrict__ &	store,
		const Int *	iPos,
		const Int *	inc
	)		[inline, private]

Internal methods to address a 4D array.

These should ulimately moved to a Array4D class in CASACore

This is called less frequently. Currently once per VisBuffer inline void cacheAxisIncrements(const Vector<Int>& n, Vector<Int>& inc) {inc.resize(4);inc[0]=1, inc[1]=inc[0]*n[0], inc[2]=inc[1]*n[1], inc[3]=inc[2]*n[2];(void)n[3];}

The following method is also called from the inner loop, but does not use CASA Vector (which are not thread safe, I (SB) am told).

return store[iPos[0] + iPos[1]*inc[1] + iPos[2]*inc[2] +iPos[3]*inc[3]];

Definition at line 238 of file AWVisResampler.h.

Complex casa::AWVisResampler::getFrom4DArray	(	const Complex *__restrict__ &	store,
		const Vector< Int > &	iPos,
		const Vector< Int > &	inc
	)		[inline, private]

The following two methods are called in the innermost loop.

return store[iPos[0] + iPos[1]*inc[1] + iPos[2]*inc[2] +iPos[3]*inc[3]];

Definition at line 246 of file AWVisResampler.h.

DComplex casa::AWVisResampler::getFrom4DArray	(	const DComplex *__restrict__ &	store,
		const Vector< Int > &	iPos,
		const Vector< Int > &	inc
	)		[inline, private]

return store[iPos[0] + iPos[1]*inc[1] + iPos[2]*inc[2] +iPos[3]*inc[3]];

Definition at line 252 of file AWVisResampler.h.

virtual void casa::AWVisResampler::GridToData	(	VBStore &	vbs,
		const Array< Complex > &	griddedData
	)		[virtual]

---

Re-sample VisBuffer to a regular grid (griddedData) (a.k.a. de-gridding)

Reimplemented from casa::VisibilityResampler.

Bool casa::AWVisResampler::onGrid	(	const Int &	nx,
		const Int &	ny,
		const Int &	nw,
		const Vector< Int > &	loc,
		const Vector< Int > &	support
	)		[inline, private]

Definition at line 209 of file AWVisResampler.h.

AWVisResampler& casa::AWVisResampler::operator=

(

const AWVisResampler &

other

)

[inline]

Definition at line 78 of file AWVisResampler.h.

References cached_phaseGrad_p, cached_PointingOffset_p, copy(), and SETVEC().

Bool casa::AWVisResampler::reindex	(	const Vector< Int > &	in,
		Vector< Int > &	out,
		const Double &	sinDPA,
		const Double &	cosDPA,
		const Vector< Int > &	Origin,
		const Vector< Int > &	size
	)		[private]

This rotates the convolution function by rotating the co-ordinate system.

For the accuracies already required for EVLA and ALMA, this is not useful. Leaving it hear for now....

virtual void casa::AWVisResampler::setCFMaps	(	const Vector< Int > &	cfMap,
		const Vector< Int > &	conjCFMap
	)		[inline, virtual]

Reimplemented from casa::VisibilityResampler.

Definition at line 86 of file AWVisResampler.h.

References casa::VisibilityResamplerBase::cfMap_p, casa::VisibilityResamplerBase::conjCFMap_p, and SETVEC().

Referenced by copyMaps().

template<class T >

void casa::AWVisResampler::SETVEC	(	Vector< T > &	lhs,
		const Vector< T > &	rhs
	)		[inline, private]

Array assignment operator in CASACore requires lhs.nelements() == 0 or lhs.nelements()=rhs.nelements()

Definition at line 221 of file AWVisResampler.h.

References casa::Vector< T >::resize(), and casa::Vector< T >::shape().

Referenced by copy(), operator=(), and setCFMaps().

void casa::AWVisResampler::sgrid	(	Vector< Double > &	pos,
		Vector< Int > &	loc,
		Vector< Double > &	off,
		Complex &	phasor,
		const Int &	irow,
		const Matrix< Double > &	uvw,
		const Double &	dphase,
		const Double &	freq,
		const Vector< Double > &	scale,
		const Vector< Double > &	offset,
		const Vector< Float > &	sampling
	)		[private]

template<class T >

void casa::AWVisResampler::XInnerLoop	(	const Int *	scaleSupport,
		const Float *	scaledSampling,
		const Double *	off,
		const Int *	loc,
		Complex &	cfArea,
		const Int *__restrict__	iGrdPosPtr,
		Complex *__restrict__ &	convFuncV,
		const Int *	convOrigin,
		Complex &	nvalue,
		Double &	wVal,
		Bool &	,
		Bool &	,
		T *__restrict__	gridStore,
		Int *	iloc,
		Complex &	norm,
		Int *	igrdpos
	)		[protected]

---

Member Data Documentation

Matrix<Complex> casa::AWVisResampler::cached_phaseGrad_p [private]

Definition at line 193 of file AWVisResampler.h.

Referenced by copy(), and operator=().

Vector<Double> casa::AWVisResampler::cached_PointingOffset_p [private]

Definition at line 194 of file AWVisResampler.h.

Referenced by AWVisResampler(), copy(), and operator=().

Vector<Int> casa::AWVisResampler::cfInc_p [private]

Definition at line 192 of file AWVisResampler.h.

Vector<Int> casa::AWVisResampler::gridInc_p [private]

---

----------------------------Private parts-------------------------------------

Vector<Double> uvwScale_p, offset_p, dphase_p; Vector<Int> chanMap_p, polMap_p; CFStore convFuncStore_p; Int inc0_p, inc1_p, inc2_p, inc3_p; Vector<Int> inc_p; Vector<Int> cfMap_p, conjCFMap_p;

Definition at line 192 of file AWVisResampler.h.

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

• code/synthesis/TransformMachines/AWVisResampler.h