svkMriImageFFT Class Reference

#include <svkMriImageFFT.h>

Inheritance diagram for svkMriImageFFT:

Public Types
enum	FFTMode { FORWARD = 0, REVERSE }

Public Member Functions
	vtkTypeMacro (svkMriImageFFT, svkImageAlgorithm)
void	SetFFTMode (FFTMode mode)
void	SetOperateInPlace (bool operateInPlace)
svkImageData *	GetOutput ()
svkImageData *	GetOutput (int port)
Public Member Functions inherited from svkImageAlgorithm
	vtkTypeMacro (svkImageAlgorithm, vtkImageAlgorithm)
svkImageData *	GetOutput ()
svkImageData *	GetOutput (int port)
svkImageData *	GetImageDataInput (int port)

Static Public Member Functions
static svkMriImageFFT *	New ()

Protected Member Functions
	svkMriImageFFT ()
	~svkMriImageFFT ()
virtual int	FillInputPortInformation (int port, vtkInformation *info)
virtual int	RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
Protected Member Functions inherited from svkImageAlgorithm
	svkImageAlgorithm ()
	~svkImageAlgorithm ()
virtual int	FillOutputPortInformation (int vtkNotUsed(port), vtkInformation *info)
virtual int	FillInputPortInformation (int vtkNotUsed(port), vtkInformation *info)

Detailed Description

Applies vtk FFT algorithms to svkMriImageData objects. In contrast to the vtkImageFFT and vtkImageRFFT svkMriImageFFT performs both forward and reverse FFT's. The domain is defined by the SetFFTMode method. Also this algorithm is by default not in place, but by using the SetOperateInPlace method you can force the algorithm to overate in place. Input can be any data type, but output for the FFT is complex doubles and the output for RFFT is real doubles.

Member Enumeration Documentation

enum FFTMode

Enumerator
FORWARD
REVERSE

Constructor & Destructor Documentation

svkMriImageFFT ( )

protected

References svkMriImageFFT::FORWARD.

~svkMriImageFFT ( )

protected

Member Function Documentation

int FillInputPortInformation ( int  port, vtkInformation *  info  )

protectedvirtual

Defines the input type: svkMriImageData.

svkImageData * GetOutput

(

)

This is only overriden to prevent it from being hidden. When you override a method you need to override every overloaded version.

Referenced by svkMriImageFFT::RequestData(), and svkSincInterpolationFilter::RequestData().

svkImageData * GetOutput

(

int

port

)

We want to override this method so that we can return a pointer to the input in the case of an in place operation.

References svkImageAlgorithm::GetImageDataInput().

static svkMriImageFFT* New ( )

static

Referenced by svkSincInterpolationFilter::RequestData().

int RequestData ( vtkInformation *  request, vtkInformationVector **  inputVector, vtkInformationVector *  outputVector  )

protectedvirtual

This is the primary execution method. If the mode is set to FORWARD it will do an fft of the data. If it is set to REVERSE then it will run an rfft and then extract the real component. Input can be any data type but output is always complex double.

References svkImageData::DeepCopy(), svkDcmHeader::ElementExists(), GetDcmHeader(), svkImageData::GetDcmHeader(), svkImageAlgorithm::GetImageDataInput(), svkMriImageFFT::GetOutput(), svkDcmHeader::GetStringValue(), svkMriImageFFT::REVERSE, svkImageData::ShallowCopy(), and svkImageData::SyncVTKImageDataToDcmHeader().

void SetFFTMode

(

FFTMode

mode

)

This determines if you want a forward fft are a reverse.

Referenced by svkSincInterpolationFilter::RequestData().

void SetOperateInPlace

(

bool

operateInPlace

)

This determines if the input data is being operated on, or if a new dataset should be created.

Referenced by svkSincInterpolationFilter::RequestData().

vtkTypeMacro	(	svkMriImageFFT	,
		svkImageAlgorithm
	)

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

• svkMriImageFFT.h
• svkMriImageFFT.cc