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casa::refim::SetJyGridFT Class Reference

An FTMachine for Gridded Fourier transforms specializing in setjy frequency scaling. More...

#include <SetJyGridFT.h>

Inheritance diagram for casa::refim::SetJyGridFT:
casa::refim::GridFT casa::refim::FTMachine

Public Member Functions

 SetJyGridFT (casacore::Long cachesize, casacore::Int tilesize, casacore::String convType, casacore::MPosition mLocation, casacore::MDirection mTangent, casacore::Float passing=1.0, casacore::Bool usezero=true, casacore::Bool useDoublePrec=false, const casacore::Vector< casacore::Double > &freqscale=casacore::Vector< casacore::Double >(1, 0.0), const casacore::Vector< casacore::Double > &scale=casacore::Vector< casacore::Double >(1, 1.0))
 Constructor: cachesize is the size of the cache in words (e.g. More...
 
 SetJyGridFT (const casacore::RecordInterface &stateRec)
 Construct from a casacore::Record containing the GridFT state. More...
 
 SetJyGridFT (const SetJyGridFT &other)
 Copy constructor. More...
 
SetJyGridFToperator= (const SetJyGridFT &other)
 Assignment operator. More...
 
virtual ~SetJyGridFT ()
 
virtual FTMachinecloneFTM ()
 clone FTM More...
 
virtual void initializeToVis (casacore::ImageInterface< casacore::Complex > &image, const vi::VisBuffer2 &vb)
 Initialize transform to Visibility plane using the image as a template. More...
 
void get (vi::VisBuffer2 &vb, casacore::Int row=-1)
 Finalize transform to Visibility plane: flushes the image cache and shows statistics if it is being used. More...
 
virtual casacore::Bool toRecord (casacore::String &error, casacore::RecordInterface &outRec, casacore::Bool withImage=false, const casacore::String diskimage="")
 Save and restore the GridFT to and from a record. More...
 
virtual casacore::Bool fromRecord (casacore::String &error, const casacore::RecordInterface &inRec)
 
virtual void setScale (const casacore::Vector< casacore::Double > &freq, const casacore::Vector< casacore::Double > &scale)
 
virtual casacore::String name () const
 Return the name of the machine. More...
 
- Public Member Functions inherited from casa::refim::GridFT
 GridFT ()
 Constructor: cachesize is the size of the cache in words (e.g. More...
 
 GridFT (casacore::Long cachesize, casacore::Int tilesize, casacore::String convType="SF", casacore::Float padding=1.0, casacore::Bool usezero=true, casacore::Bool useDoublePrec=false)
 
 GridFT (casacore::Long cachesize, casacore::Int tilesize, casacore::String convType, casacore::MPosition mLocation, casacore::Float padding=1.0, casacore::Bool usezero=true, casacore::Bool useDoublePrec=false)
 
 GridFT (casacore::Long cachesize, casacore::Int tilesize, casacore::String convType, casacore::MDirection mTangent, casacore::Float padding=1.0, casacore::Bool usezero=true, casacore::Bool useDoublePrec=false)
 
 GridFT (casacore::Long cachesize, casacore::Int tilesize, casacore::String convType, casacore::MPosition mLocation, casacore::MDirection mTangent, casacore::Float passing=1.0, casacore::Bool usezero=true, casacore::Bool useDoublePrec=false)
 
 GridFT (const casacore::RecordInterface &stateRec)
 Construct from a casacore::Record containing the GridFT state. More...
 
 GridFT (const GridFT &other)
 Copy constructor. More...
 
virtual GridFToperator= (const GridFT &other)
 Assignment operator. More...
 
virtual ~GridFT ()
 
virtual void finalizeToVis ()
 Finalize transform to Visibility plane: flushes the image cache and shows statistics if it is being used. More...
 
virtual void initializeToSky (casacore::ImageInterface< casacore::Complex > &image, casacore::Matrix< casacore::Float > &weight, const vi::VisBuffer2 &vb)
 Initialize transform to Sky plane: initializes the image. More...
 
virtual void finalizeToSky ()
 Finalize transform to Sky plane: flushes the image cache and shows statistics if it is being used. More...
 
virtual void put (const vi::VisBuffer2 &vb, casacore::Int row=-1, casacore::Bool dopsf=false, FTMachine::Type type=FTMachine::OBSERVED)
 Put coherence to grid by gridding. More...
 
void makeImage (FTMachine::Type type, vi::VisibilityIterator2 &vi, casacore::ImageInterface< casacore::Complex > &image, casacore::Matrix< casacore::Float > &weight)
 Make the entire image. More...
 
casacore::ImageInterface
< casacore::Complex > & 
getImage (casacore::Matrix< casacore::Float > &, casacore::Bool normalize=true)
 Get the final image: do the Fourier transform and grid-correct, then optionally normalize by the summed weights. More...
 
virtual void normalizeImage (casacore::Lattice< casacore::Complex > &, const casacore::Matrix< casacore::Double > &, casacore::Lattice< casacore::Float > &, casacore::Bool)
 
void getWeightImage (casacore::ImageInterface< casacore::Float > &, casacore::Matrix< casacore::Float > &)
 Get the final weights image. More...
 
virtual casacore::Bool isFourier ()
 Can this FTMachine be represented by Fourier convolutions? More...
 
virtual void setNoPadding (casacore::Bool nopad)
 To make sure no padding is used in certain gridders. More...
 
virtual void modifyConvFunc (const casacore::Vector< casacore::Double > &convFunc, casacore::Int convSupport, casacore::Int convSampling)
 
virtual void setMiscInfo (const casacore::Int qualifier)
 set the order of the Taylor term for MFS this is to tell A-casacore::Projection to qualify the accumulated avgPB for each Taylor term in the CFCache. More...
 
virtual void ComputeResiduals (vi::VisBuffer2 &, casacore::Bool)
 Make the VB and VBStore interefaces for the interim re-factoring work. More...
 
virtual casacore::Long estimateRAM (const casacore::CountedPtr< SIImageStore > &imstore)
 estimate of memory necessary in kB More...
 
- Public Member Functions inherited from casa::refim::FTMachine
 FTMachine ()
 
 FTMachine (casacore::CountedPtr< CFCache > &cfcache, casacore::CountedPtr< ConvolutionFunction > &cfctor)
 
 FTMachine (const FTMachine &other)
 
FTMachineoperator= (const FTMachine &other)
 
void setBasePrivates (const FTMachine &other)
 
virtual ~FTMachine ()
 
virtual void initializeToVisNew (const vi::VisBuffer2 &vb, casacore::CountedPtr< SIImageStore > imstore)
 
virtual void initializeToSkyNew (const casacore::Bool dopsf, const vi::VisBuffer2 &vb, casacore::CountedPtr< SIImageStore > imstore)
 
virtual void initBriggsWeightor (vi::VisibilityIterator2 &vi)
 

This function has to be called after initMaps to initialize Briggs Cube weighting scheme More...

 
virtual void finalizeToSky (casacore::ImageInterface< casacore::Complex > &iimage)
 
virtual void finalizeToSkyNew (casacore::Bool dopsf, const vi::VisBuffer2 &vb, casacore::CountedPtr< SIImageStore > imstore)
 
virtual void put (vi::VisBuffer2 &vb, casacore::Int row=-1, casacore::Bool dopsf=false, refim::FTMachine::Type type=refim::FTMachine::OBSERVED)
 Non const vb version - so that weights can be modified in-place Currently, used only by MultiTermFT. More...
 
virtual void correlationToStokes (casacore::ImageInterface< casacore::Complex > &compImage, casacore::ImageInterface< casacore::Float > &resImage, const casacore::Bool dopsf)
 
More...
 
virtual void stokesToCorrelation (casacore::ImageInterface< casacore::Float > &modelImage, casacore::ImageInterface< casacore::Complex > &compImage)
 
virtual void normalizeImage (casacore::ImageInterface< casacore::Float > &skyImage, casacore::Matrix< casacore::Float > &sumOfWts, casacore::ImageInterface< casacore::Float > &sensitivityImage, casacore::Bool dopsf, casacore::Float pblimit, casacore::Int normtype)
 
virtual casacore::Bool useWeightImage ()
 All FTMachines that fill weightimage, need to set this. More...
 
virtual casacore::Bool isSkyJonesSet ()
 
virtual casacore::Bool isSkyJonesChanged (vi::VisBuffer2 &vb, casacore::Int row)
 
virtual void setSkyJones (casacore::Vector< casacore::CountedPtr< SkyJones > > &sj)
 Set SkyJones if image domain corrections /applycation are needed To reset the the FTMachine for stopping image based correction/applycation set in a casacore::Vector of size 0. More...
 
casacore::Bool changedSkyJonesLogic (const vi::VisBuffer2 &vb, casacore::Bool &firstRow, casacore::Bool &internalRow)
 
template<typename T >
void getGrid (casacore::Array< T > &thegrid)
 
More...
 
virtual const
casacore::CountedPtr
< refim::ConvolutionFunction > & 
getAWConvFunc ()
 
virtual void findConvFunction (const casacore::ImageInterface< casacore::Complex > &, const vi::VisBuffer2 &)
 
virtual void getFluxImage (casacore::ImageInterface< casacore::Float > &image)
 Get a flux (divide by this to get a flux density correct image) image if there is one. More...
 
void rotateUVW (casacore::Matrix< casacore::Double > &uvw, casacore::Vector< casacore::Double > &dphase, const vi::VisBuffer2 &vb)
 
More...
 
void girarUVW (casacore::Matrix< casacore::Double > &uvw, casacore::Vector< casacore::Double > &dphase, const vi::VisBuffer2 &vb)
 rotate with facetting style rephasing..for multifield mosaic More...
 
void refocus (casacore::Matrix< casacore::Double > &uvw, const casacore::Vector< casacore::Int > &ant1, const casacore::Vector< casacore::Int > &ant2, casacore::Vector< casacore::Double > &dphase, const vi::VisBuffer2 &vb)
 Refocus on a finite distance. More...
 
virtual casacore::Bool changed (const vi::VisBuffer2 &vb)
 Has this operator changed since the last application? More...
 
casacore::Bool setFrameValidity (casacore::Bool validFrame)
 set otf spectral frame transform is on or off; More...
 
virtual casacore::Bool doublePrecGrid ()
 return whether the ftmachine is using a double precision grid More...
 
virtual void setLocation (const casacore::MPosition &loc)
 set and get the location used for frame More...
 
virtual casacore::MPositiongetLocation ()
 
virtual void setMovingSource (const casacore::String &sourcename, const casacore::String &ephemtable="")
 set a moving source aka planets or comets => adjust phase center on the fly for gridding More...
 
virtual void setMovingSource (const casacore::MDirection &mdir)
 
virtual void reset ()
 reset stuff in an FTMachine More...
 
virtual void setFreqInterpolation (const casacore::String &method)
 set frequency interpolation type More...
 
virtual void setFreqInterpolation (const casacore::InterpolateArray1D< casacore::Double, casacore::Complex >::InterpolationMethod type)
 
virtual void setPointingDirColumn (const casacore::String &column="DIRECTION")
 tell ftmachine which Pointing table column to use for Direction Mosaic or Single dish ft use this for example More...
 
virtual casacore::String getPointingDirColumnInUse ()
 
virtual void setSpwChanSelection (const casacore::Cube< casacore::Int > &spwchansels)
 
virtual void setSpwFreqSelection (const casacore::Matrix< casacore::Double > &spwfreqs)
 
virtual void setCanComputeResiduals (casacore::Bool &b)
 
virtual casacore::Bool canComputeResiduals ()
 
virtual casacore::Float getPBLimit ()
 
void setnumthreads (casacore::Int n)
 virtual void ComputeResiduals(VBStore& vb)=0; get and set numthreads More...
 
casacore::Int getnumthreads ()
 
virtual void setCFCache (casacore::CountedPtr< CFCache > &cfc, const casacore::Bool resetCFC=true)
 
casacore::CountedPtr< CFCachegetCFCache ()
 
casacore::String getCacheDir ()
 
virtual void setDryRun (casacore::Bool val)
 
virtual casacore::Bool dryRun ()
 
virtual casacore::Bool isUsingCFCache ()
 
virtual const
casacore::CountedPtr
< refim::FTMachine > & 
getFTM2 (const casacore::Bool)
 
void setPseudoIStokes (casacore::Bool pseudoI)
 
void setPhaseCenterTime (const casacore::Double time)
 set and get Time to calculate phasecenter -1.0 means using the time available at each iteration..this is used when the phasecenter in the field table is either a polynomial or has a ephemerides tables associated with it Using double in the units and epoch-frame of the ms(s)..caller is responsible for conversion More...
 
casacore::Double getPhaseCenterTime ()
 
casacore::Vector< casacore::IntchannelMap (const vi::VisBuffer2 &vb)
 
casacore::Matrix
< casacore::Double
getSumWeights ()
 
void setBriggsCubeWeight (casacore::CountedPtr< refim::BriggsCubeWeightor > bwght)
 Functions associated with Briggs weighting for cubes. More...
 
void getImagingWeight (casacore::Matrix< casacore::Float > &imwght, const vi::VisBuffer2 &vb)
 

Protected Attributes

casacore::Vector
< casacore::Double
freqscale_p
 Prepare the grid for degridding void prepGridForDegrid();. More...
 
casacore::Vector
< casacore::Double
scale_p
 
casacore::Vector
< casacore::Double
interpscale_p
 
- Protected Attributes inherited from casa::refim::GridFT
casacore::Float padding_p
 Padding in FFT. More...
 
casacore::LatticeCache
< casacore::Complex > * 
imageCache
 Is this record on Grid? check both ends. More...
 
casacore::Long cachesize
 Sizes. More...
 
casacore::Int tilesize
 
casacore::ConvolveGridder
< casacore::Double,
casacore::Complex > * 
gridder
 Gridder. More...
 
casacore::Bool isTiled
 Is this tiled? More...
 
std::shared_ptr
< casacore::Lattice
< casacore::Complex > > 
arrayLattice
 casacore::Array lattice More...
 
std::shared_ptr
< casacore::Lattice
< casacore::Complex > > 
lattice
 Lattice. More...
 
casacore::String convType
 
casacore::Float maxAbsData
 
casacore::IPosition centerLoc
 Useful IPositions. More...
 
casacore::IPosition offsetLoc
 
casacore::Vector
< casacore::Double
uvScale
 Image Scaling and offset. More...
 
casacore::Vector
< casacore::Double
uvOffset
 
casacore::Int priorCacheSize
 
casacore::Bool usezero_p
 Grid/degrid zero spacing points? More...
 
casacore::Bool noPadding_p
 force no padding More...
 
casacore::Bool usePut2_p
 Check if using put that avoids non-necessary reads. More...
 
casacore::String machineName_p
 machine name More...
 
casacore::Double timemass_p
 
casacore::Double timegrid_p
 
casacore::Double timedegrid_p
 
casacore::Vector
< casacore::Double
convFunc_p
 
casacore::Int convSampling_p
 
casacore::Int convSupport_p
 
- Protected Attributes inherited from casa::refim::FTMachine
casacore::LogIO logIO_p
 
casacore::ImageInterface
< casacore::Complex > * 
image
 
casacore::UVWMachineuvwMachine_p
 
casacore::CountedPtr
< casacore::UVWMachine
phaseShifter_p
 
casacore::MeasFrame mFrame_p
 
casacore::Bool tangentSpecified_p
 Direction of desired tangent plane. More...
 
casacore::MDirection mTangent_p
 
casacore::MDirection mImage_p
 
casacore::MDirection movingDir_p
 moving source stuff More...
 
casacore::Bool fixMovingSource_p
 
casacore::String ephemTableName_p
 
casacore::MDirection firstMovingDir_p
 
casacore::MVDirection movingDirShift_p
 This will hold the angular difference between movingDir and firstMovingDir with the frame conversion done properly etc. More...
 
casacore::Double distance_p
 
casacore::uInt nAntenna_p
 
casacore::Int lastFieldId_p
 
casacore::Int lastMSId_p
 
casacore::CountedPtr
< casacore::ROMSColumns
romscol_p
 
casacore::Bool useDoubleGrid_p
 Use douple precision grid in gridding process. More...
 
casacore::Matrix
< casacore::Double
sumWeight
 Sum of weights per polarization and per chan. More...
 
casacore::Matrix
< casacore::Double
sumCFWeight
 
casacore::Int nx
 Sizes. More...
 
casacore::Int ny
 
casacore::Int npol
 
casacore::Int nchan
 
casacore::Int nvischan
 
casacore::Int nvispol
 
casacore::Vector< casacore::IntchanMap
 Maps of channels and polarization. More...
 
casacore::Vector< casacore::IntpolMap
 
casacore::Bool isPseudoI_p
 Stokes pseudo I only? single parallel flagged will be allowed. More...
 
casacore::MPosition mLocation_p
 Default Position used for phase rotations. More...
 
casacore::Bool doUVWRotation_p
 Set if uvwrotation is necessary. More...
 
casacore::Vector< casacore::IntnVisChan_p
 
setup multiple spectral window for cubes

casacore::Block <casacore::Vector <casacore::Int> > multiChanMap_p; casacore::Vector<casacore::Int> selectedSpw_p; More...

 
casacore::SpectralCoordinate spectralCoord_p
 Private variables needed for spectral frame conversion. More...
 
casacore::Bool freqFrameValid_p
 casacore::Vector<casacore::Bool> doConversion_p; More...
 
casacore::Vector
< casacore::Double
imageFreq_p
 
casacore::Vector
< casacore::Double
lsrFreq_p
 casacore::Vector of float lsrfreq needed for regridding More...
 
casacore::Vector
< casacore::Double
interpVisFreq_p
 
casacore::InterpolateArray1D
< casacore::Double,
casacore::Complex >
::InterpolationMethod 
freqInterpMethod_p
 
casacore::String pointingDirCol_p
 
casacore::Cube< casacore::IntspwChanSelFlag_p
 
casacore::Matrix
< casacore::Double
spwFreqSel_p
 
casacore::Matrix
< casacore::Double
expandedSpwFreqSel_p
 
casacore::Matrix
< casacore::Double
expandedSpwConjFreqSel_p
 
casacore::Vector< casacore::IntcfStokes_p
 
casacore::Int polInUse_p
 
casacore::CountedPtr< CFCachecfCache_p
 
CFStore cfs_p
 
CFStore cfwts_p
 
casacore::CountedPtr< CFStore2cfs2_p
 
casacore::CountedPtr< CFStore2cfwts2_p
 
casacore::CountedPtr
< ConvolutionFunction
convFuncCtor_p
 
casacore::CountedPtr
< PolOuterProduct
pop_p
 
casacore::Bool canComputeResiduals_p
 
casacore::Bool toVis_p
 
casacore::Int numthreads_p
 
casacore::Array
< casacore::Complex > 
griddedData
 casacore::Array for non-tiled gridding These are common to most FTmachines More...
 
casacore::Array
< casacore::DComplex > 
griddedData2
 
casacore::Float pbLimit_p
 
casacore::Vector
< casacore::CountedPtr
< SkyJones > > 
sj_p
 casacore::Vector<SkyJones *> sj_p; More...
 
casacore::CountedPtr
< casacore::ImageInterface
< casacore::Complex > > 
cmplxImage_p
 A holder for the complex image if nobody else is keeping it. More...
 
casacore::CountedPtr
< VisBufferUtil
vbutil_p
 
casacore::Double phaseCenterTime_p
 
casacore::Int doneThreadPartition_p
 Some parameters and helpers for multithreaded gridders. More...
 
casacore::Vector< casacore::Intxsect_p
 
casacore::Vector< casacore::Intysect_p
 
casacore::Vector< casacore::Intnxsect_p
 
casacore::Vector< casacore::Intnysect_p
 
casacore::CountedPtr
< refim::BriggsCubeWeightor
briggsWeightor_p
 
casacore::MRadialVelocity::Convert obsvelconv_p
 moving source spectral frame stuff More...
 
casacore::MeasTable::Types mtype_p
 
FFT2D ft_p
 

Additional Inherited Members

- Public Types inherited from casa::refim::FTMachine
enum  Type {
  OBSERVED,
  MODEL,
  CORRECTED,
  RESIDUAL,
  PSF,
  COVERAGE,
  N_types,
  DEFAULT
}
 Types of known Images that may be made using the makeImage method. More...
 
- Static Public Member Functions inherited from casa::refim::FTMachine
static void locateuvw (const casacore::Double *&uvw, const casacore::Double *&dphase, const casacore::Double *&freq, const casacore::Int &nchan, const casacore::Double *&scale, const casacore::Double *&offset, const casacore::Int &sampling, casacore::Int *&loc, casacore::Int *&off, casacore::Complex *&phasor, const casacore::Int &row, const casacore::Bool &doW=false)
 helper function for openmp to call...no private dependency More...
 
- Public Attributes inherited from casa::refim::FTMachine
casacore::Bool isDryRun
 
- Protected Member Functions inherited from casa::refim::GridFT
casacore::Array
< casacore::Complex > * 
getDataPointer (const casacore::IPosition &, casacore::Bool)
 Get the appropriate data pointer. More...
 
virtual void ok ()
 
virtual void init ()
 
virtual void prepGridForDegrid ()
 Prepare the grid for degridding. More...
 
- Protected Member Functions inherited from casa::refim::FTMachine
casacore::LogIOlogIO ()
 
virtual void initMaps (const vi::VisBuffer2 &vb)
 
virtual void initPolInfo (const vi::VisBuffer2 &vb)
 
virtual void gridOk (casacore::Int gridsupport)
 check if image is big enough for gridding More...
 
casacore::Bool matchChannel (const casacore::Int &spw, const VisBuffer &vb)
 
casacore::Bool matchChannel (const vi::VisBuffer2 &vb)
 
casacore::Bool matchAllSpwChans (const VisBuffer &vb)
 redo all spw chan match especially if ms has changed underneath More...
 
virtual casacore::Bool interpolateFrequencyTogrid (const vi::VisBuffer2 &vb, const casacore::Matrix< casacore::Float > &wt, casacore::Cube< casacore::Complex > &data, casacore::Cube< casacore::Int > &flag, casacore::Matrix< casacore::Float > &weight, FTMachine::Type type=FTMachine::OBSERVED)
 casacore::Bool matchAllSpwChans(const vi::VisBuffer2& vb); interpolate visibility data of vb to grid frequency definition flag will be set the one as described in interpolateArray1D return false if no interpolation is done...for e.g for nearest case More...
 
virtual casacore::Bool interpolateFrequencyFromgrid (vi::VisBuffer2 &vb, casacore::Cube< casacore::Complex > &data, FTMachine::Type type=FTMachine::MODEL)
 degridded data interpolated back onto visibilities More...
 
virtual void getInterpolateArrays (const vi::VisBuffer2 &vb, casacore::Cube< casacore::Complex > &data, casacore::Cube< casacore::Int > &flag)
 Interpolate visibilities to be degridded upon. More...
 
void setSpectralFlag (const vi::VisBuffer2 &vb, casacore::Cube< casacore::Bool > &modflagcube)
 
casacore::Bool storeMovingSourceState (casacore::String &error, casacore::RecordInterface &outRecord)
 Save/Recover some elements of state of ftmachine in/from record. More...
 
casacore::Bool saveMeasure (casacore::RecordInterface &rec, const casacore::String &name, casacore::String &error, const casacore::Measure &ms)
 helper to save Measures in a record More...
 
casacore::Bool recoverMovingSourceState (casacore::String &error, const casacore::RecordInterface &inRecord)
 
casacore::Matrix
< casacore::Double
negateUV (const vi::VisBuffer2 &vb)
 
virtual void findGridSector (const casacore::Int &nxp, const casacore::Int &nyp, const casacore::Int &ixsub, const casacore::Int &iysub, const casacore::Int &minx, const casacore::Int &miny, const casacore::Int &icounter, casacore::Int &x0, casacore::Int &y0, casacore::Int &nxsub, casacore::Int &nysub, const casacore::Bool linear)
 
virtual void tweakGridSector (const casacore::Int &nx, const casacore::Int &ny, const casacore::Int &ixsub, const casacore::Int &iysub)
 
void initSourceFreqConv ()
 
void shiftFreqToSource (casacore::Vector< casacore::Double > &freqs)
 

Detailed Description

An FTMachine for Gridded Fourier transforms specializing in setjy frequency scaling.

Intended use:

Public interface

Prerequisite

Etymology

Inheriting from GridFT which does Grid-based Fourier transforms. special case for setjy style frequency scaling

Synopsis

Example

Motivation

Define an interface to allow efficient processing of chunks of visibility data

Definition at line 73 of file SetJyGridFT.h.

Constructor & Destructor Documentation

casa::refim::SetJyGridFT::SetJyGridFT ( casacore::Long  cachesize,
casacore::Int  tilesize,
casacore::String  convType,
casacore::MPosition  mLocation,
casacore::MDirection  mTangent,
casacore::Float  passing = 1.0,
casacore::Bool  usezero = true,
casacore::Bool  useDoublePrec = false,
const casacore::Vector< casacore::Double > &  freqscale = casacore::Vectorcasacore::Double >(1, 0.0),
const casacore::Vector< casacore::Double > &  scale = casacore::Vectorcasacore::Double >(1, 1.0) 
)

Constructor: cachesize is the size of the cache in words (e.g.

a few million is a good number), tilesize is the size of the tile used in gridding (cannot be less than 12, 16 works in most cases), and convType is the type of gridding used (SF is prolate spheriodal wavefunction, and BOX is plain box-car summation). mLocation is the position to be used in some phase rotations. If mTangent is specified then the uvw rotation is done for that location iso the image center.

casa::refim::SetJyGridFT::SetJyGridFT ( const casacore::RecordInterface stateRec)

Construct from a casacore::Record containing the GridFT state.

casa::refim::SetJyGridFT::SetJyGridFT ( const SetJyGridFT other)

Copy constructor.

virtual casa::refim::SetJyGridFT::~SetJyGridFT ( )
virtual

Member Function Documentation

virtual FTMachine* casa::refim::SetJyGridFT::cloneFTM ( )
virtual

clone FTM

Reimplemented from casa::refim::GridFT.

virtual casacore::Bool casa::refim::SetJyGridFT::fromRecord ( casacore::String error,
const casacore::RecordInterface inRec 
)
virtual

Reimplemented from casa::refim::GridFT.

void casa::refim::SetJyGridFT::get ( vi::VisBuffer2 vb,
casacore::Int  row = -1 
)
virtual

Finalize transform to Visibility plane: flushes the image cache and shows statistics if it is being used.

void finalizeToVis();

Get actual coherence from grid by degridding

Reimplemented from casa::refim::GridFT.

virtual void casa::refim::SetJyGridFT::initializeToVis ( casacore::ImageInterface< casacore::Complex > &  image,
const vi::VisBuffer2 vb 
)
virtual

Initialize transform to Visibility plane using the image as a template.

The image is loaded and Fourier transformed.

Reimplemented from casa::refim::GridFT.

virtual casacore::String casa::refim::SetJyGridFT::name ( ) const
virtual

Return the name of the machine.

Reimplemented from casa::refim::GridFT.

SetJyGridFT& casa::refim::SetJyGridFT::operator= ( const SetJyGridFT other)

Assignment operator.

virtual void casa::refim::SetJyGridFT::setScale ( const casacore::Vector< casacore::Double > &  freq,
const casacore::Vector< casacore::Double > &  scale 
)
virtual
virtual casacore::Bool casa::refim::SetJyGridFT::toRecord ( casacore::String error,
casacore::RecordInterface outRec,
casacore::Bool  withImage = false,
const casacore::String  diskimage = "" 
)
virtual

Save and restore the GridFT to and from a record.

Reimplemented from casa::refim::GridFT.

Member Data Documentation

casacore::Vector<casacore::Double> casa::refim::SetJyGridFT::freqscale_p
protected

Prepare the grid for degridding void prepGridForDegrid();.

Definition at line 137 of file SetJyGridFT.h.

casacore::Vector<casacore::Double> casa::refim::SetJyGridFT::interpscale_p
protected

Definition at line 139 of file SetJyGridFT.h.

casacore::Vector<casacore::Double> casa::refim::SetJyGridFT::scale_p
protected

Definition at line 138 of file SetJyGridFT.h.


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