casa::refim::ComponentFTMachine Class Reference

ComponentFTMachine: a abstract base class defining the interface for a Fourier Transform Machine to be used in the SkyEquation for the transformation of SkyComponents. More...

#include <ComponentFTMachine.h>

Inheritance diagram for casa::refim::ComponentFTMachine:

List of all members.

Public Member Functions
	ComponentFTMachine ()
	ComponentFTMachine (const ComponentFTMachine &other)
ComponentFTMachine &	operator= (const ComponentFTMachine &other)
virtual	~ComponentFTMachine ()
virtual void	get (vi::VisBuffer2 &vb, SkyComponent &component, Int row=-1)=0
	Get actual coherence : this is the only virtual method.
virtual void	get (vi::VisBuffer2 &vb, const ComponentList &componentList, Int row=-1)=0
	Get actual coherence : this is the other only virtual method.
void	rotateUVW (Matrix< Double > &uvw, Vector< Double > &dphase, const vi::VisBuffer2 &vb, const MDirection &mDesired)
	Rotate the uvw from the observed phase center to the desired phase center.
void	rotateUVW (Double &uvw, Double &dphase, const Int nrows, const vi::VisBuffer2 &vb, const MDirection &mDesired)
	A version that use pointers to contigous matrix and vector.
void	setnumthreads (const Int numthreads)
	Set number of threads to use when predicting.
Protected Member Functions
LogIO &	logIO ()
virtual void	ok ()
Protected Attributes
LogIO	logIO_p
MPosition	mLocation_p
	Default Position used for phase rotations.
Int	numthreads_p

Detailed Description

ComponentFTMachine: a abstract base class defining the interface for a Fourier Transform Machine to be used in the SkyEquation for the transformation of SkyComponents.

Intended use:

Public interface

Prerequisite

SkyModel module
SkyEquation module
VisBuffer module
SkyComponent class

Etymology

FTMachine is a Machine for Fourier Transforms

Synopsis

The SkyEquation needs to be able to perform Fourier transforms on visibility data. FTMachine allows efficient Fourier Transform processing using a VisBuffer which encapsulates a chunk of visibility (typically all baselines for one time) together with all the information needed for processing (e.g. UVW coordinates).

Example

A simple example of an ComponentFTMachine is found in SimpleComponentFTMachine . See the example for SkyModel .

Motivation

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

Definition at line 103 of file ComponentFTMachine.h.

Constructor & Destructor Documentation

casa::refim::ComponentFTMachine::ComponentFTMachine ( )

casa::refim::ComponentFTMachine::ComponentFTMachine ( const ComponentFTMachine & other )

virtual casa::refim::ComponentFTMachine::~ComponentFTMachine ( ) [virtual]

Member Function Documentation

virtual void casa::refim::ComponentFTMachine::get	(	vi::VisBuffer2 &	vb,
		const ComponentList &	componentList,
		Int	row = `-1`
	)			`[pure virtual]`

Get actual coherence : this is the other only virtual method.

Implemented in casa::refim::SimpleComponentFTMachine.

virtual void casa::refim::ComponentFTMachine::get	(	vi::VisBuffer2 &	vb,
		SkyComponent &	component,
		Int	row = `-1`
	)			`[pure virtual]`

Get actual coherence : this is the only virtual method.

Implemented in casa::refim::SimpleComponentFTMachine.

LogIO& casa::refim::ComponentFTMachine::logIO ( ) [protected]

virtual void casa::refim::ComponentFTMachine::ok ( ) [protected, virtual]

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

void casa::refim::ComponentFTMachine::rotateUVW	(	Double *&	uvw,
		Double *&	dphase,
		const Int	nrows,
		const vi::VisBuffer2 &	vb,
		const MDirection &	mDesired
	)

A version that use pointers to contigous matrix and vector.

void casa::refim::ComponentFTMachine::rotateUVW	(	Matrix< Double > &	uvw,
		Vector< Double > &	dphase,
		const vi::VisBuffer2 &	vb,
		const MDirection &	mDesired
	)

Rotate the uvw from the observed phase center to the desired phase center.

void casa::refim::ComponentFTMachine::setnumthreads ( const Int numthreads )

Set number of threads to use when predicting.

Setting it to -1 basically tell openmp to use the number it can get

Member Data Documentation

LogIO casa::refim::ComponentFTMachine::logIO_p [protected]

Definition at line 131 of file ComponentFTMachine.h.

MPosition casa::refim::ComponentFTMachine::mLocation_p [protected]

Default Position used for phase rotations.

Definition at line 136 of file ComponentFTMachine.h.

Int casa::refim::ComponentFTMachine::numthreads_p [protected]

Definition at line 139 of file ComponentFTMachine.h.

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

code/synthesis/TransformMachines2/ComponentFTMachine.h