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vtkImageRFFT Class Reference

Reverse Fast Fourier Transform. More...

#include <vtkImageRFFT.h>

Inheritance diagram for vtkImageRFFT:

[legend]Collaboration diagram for vtkImageRFFT:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
int	SplitExtent (int splitExt[6], int startExt[6], int num, int total)
Static Public Methods
vtkImageRFFT *	New ()
int	IsTypeOf (const char *type)
vtkImageRFFT *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkImageRFFT ()
	~vtkImageRFFT ()
	vtkImageRFFT (const vtkImageRFFT &)
void	operator= (const vtkImageRFFT &)
void	ExecuteInformation (vtkImageData *inData, vtkImageData *outData)
void	ComputeInputUpdateExtent (int inExt[6], int outExt[6])
void	ExecuteInformation ()
void	ThreadedExecute (vtkImageData *inData, vtkImageData *outData, int outExt[6], int threadId)

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Detailed Description

Reverse Fast Fourier Transform.

Date:

2000/12/10 20:09:09

Revision:

1.23

Thanks:

Thanks to C. Charles Law who developed this class.

vtkImageRFFT implements the reverse fast Fourier transform. The input can have real or imaginary data in any components and data types, but the output is always float with real values in component0, and imaginary values in component1. The filter is faster for images that have power of two sizes.

Examples:

vtkImageRFFT (examples)

Definition at line 63 of file vtkImageRFFT.h.

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Constructor & Destructor Documentation

vtkImageRFFT::vtkImageRFFT (    )  [inline, protected]

Definition at line 80 of file vtkImageRFFT.h.

vtkImageRFFT::~vtkImageRFFT (    )  [inline, protected]

Definition at line 81 of file vtkImageRFFT.h.

vtkImageRFFT::vtkImageRFFT (  const vtkImageRFFT &    )  [inline, protected]

Definition at line 82 of file vtkImageRFFT.h.

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Member Function Documentation

vtkImageRFFT* vtkImageRFFT::New (    )  [static]

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3. Reimplemented from vtkImageFourierFilter.

virtual const char* vtkImageRFFT::GetClassName (    )  [virtual]

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageFourierFilter.

int vtkImageRFFT::IsTypeOf (  const char *    type )  [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageFourierFilter.

virtual int vtkImageRFFT::IsA (  const char *    type )  [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageFourierFilter.

vtkImageRFFT* vtkImageRFFT::SafeDownCast (  vtkObject *    o )  [static]

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageFourierFilter.

int vtkImageRFFT::SplitExtent (  int    splitExt[6], int    startExt[6], int    num, int    total )  [virtual]

For streaming and threads. Splits output update extent into num pieces. This method needs to be called num times. Results must not overlap for consistent starting extent. Subclass can override this method. This method returns the number of pieces resulting from a successful split. This can be from 1 to "total". If 1 is returned, the extent cannot be split. Reimplemented from vtkImageToImageFilter.

void vtkImageRFFT::operator= (  const vtkImageRFFT &    )  [inline, protected]

Definition at line 83 of file vtkImageRFFT.h.

void vtkImageRFFT::ExecuteInformation (  vtkImageData *    inData, vtkImageData *    outData )  [protected, virtual]

Reimplemented from vtkImageIterateFilter.

void vtkImageRFFT::ComputeInputUpdateExtent (  int    inExt[6], int    outExt[6] )  [protected, virtual]

Reimplemented from vtkImageIterateFilter.

void vtkImageRFFT::ExecuteInformation (    )  [inline, protected, virtual]

Reimplemented from vtkImageIterateFilter. Definition at line 87 of file vtkImageRFFT.h.

void vtkImageRFFT::ThreadedExecute (  vtkImageData *    inData, vtkImageData *    outData, int    outExt[6], int    threadId )  [protected, virtual]

If the subclass does not define an Execute method, then the task will be broken up, multiple threads will be spawned, and each thread will call this method. It is public so that the thread functions can call this method. Reimplemented from vtkImageToImageFilter.

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

• imaging/vtkImageRFFT.h

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