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vtkExtractVOI Class Reference

select piece (e.g., volume of interest) and/or subsample structured points dataset More...

#include <vtkExtractVOI.h>

Inherits vtkImageAlgorithm.

Public Types

typedef vtkImageAlgorithm Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 
vtkExtractVOINewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual void SetVOI (int, int, int, int, int, int)
 
virtual void SetVOI (int[6])
 
virtual int * GetVOI ()
 
virtual void GetVOI (int data[6])
 
virtual void SetSampleRate (int, int, int)
 
virtual void SetSampleRate (int[3])
 
virtual int * GetSampleRate ()
 
virtual void GetSampleRate (int data[3])
 

Static Public Member Functions

static int IsTypeOf (const char *type)
 
static vtkExtractVOISafeDownCast (vtkObjectBase *o)
 
static vtkExtractVOINew ()
 

Protected Member Functions

virtual vtkObjectBase * NewInstanceInternal () const
 
 vtkExtractVOI ()
 
 ~vtkExtractVOI ()
 
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
virtual int RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
 
virtual int RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
 

Protected Attributes

int VOI [6]
 
int SampleRate [3]
 

Detailed Description

select piece (e.g., volume of interest) and/or subsample structured points dataset

vtkExtractVOI is a filter that selects a portion of an input structured points dataset, or subsamples an input dataset. (The selected portion of interested is referred to as the Volume Of Interest, or VOI.) The output of this filter is a structured points dataset. The filter treats input data of any topological dimension (i.e., point, line, image, or volume) and can generate output data of any topological dimension.

To use this filter set the VOI ivar which are i-j-k min/max indices that specify a rectangular region in the data. (Note that these are 0-offset.) You can also specify a sampling rate to subsample the data.

Typical applications of this filter are to extract a slice from a volume for image processing, subsampling large volumes to reduce data size, or extracting regions of a volume with interesting data.

See Also
vtkGeometryFilter vtkExtractGeometry vtkExtractGrid
Examples:
vtkExtractVOI (Examples)
Tests:
vtkExtractVOI (Tests)

Definition at line 50 of file vtkExtractVOI.h.

Member Typedef Documentation

typedef vtkImageAlgorithm vtkExtractVOI::Superclass

Definition at line 53 of file vtkExtractVOI.h.

Constructor & Destructor Documentation

vtkExtractVOI::vtkExtractVOI ( )
protected
vtkExtractVOI::~vtkExtractVOI ( )
inlineprotected

Definition at line 78 of file vtkExtractVOI.h.

Member Function Documentation

static int vtkExtractVOI::IsTypeOf ( const char *  type)
static
virtual int vtkExtractVOI::IsA ( const char *  type)
virtual
static vtkExtractVOI* vtkExtractVOI::SafeDownCast ( vtkObjectBase *  o)
static
virtual vtkObjectBase* vtkExtractVOI::NewInstanceInternal ( ) const
protectedvirtual
vtkExtractVOI* vtkExtractVOI::NewInstance ( ) const
void vtkExtractVOI::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
static vtkExtractVOI* vtkExtractVOI::New ( )
static

Construct object to extract all of the input data.

virtual void vtkExtractVOI::SetVOI ( int  ,
int  ,
int  ,
int  ,
int  ,
int   
)
virtual

Specify i-j-k (min,max) pairs to extract. The resulting structured points dataset can be of any topological dimension (i.e., point, line, image, or volume).

virtual void vtkExtractVOI::SetVOI ( int  [6])
virtual

Specify i-j-k (min,max) pairs to extract. The resulting structured points dataset can be of any topological dimension (i.e., point, line, image, or volume).

virtual int* vtkExtractVOI::GetVOI ( )
virtual

Specify i-j-k (min,max) pairs to extract. The resulting structured points dataset can be of any topological dimension (i.e., point, line, image, or volume).

virtual void vtkExtractVOI::GetVOI ( int  data[6])
virtual

Specify i-j-k (min,max) pairs to extract. The resulting structured points dataset can be of any topological dimension (i.e., point, line, image, or volume).

virtual void vtkExtractVOI::SetSampleRate ( int  ,
int  ,
int   
)
virtual

Set the sampling rate in the i, j, and k directions. If the rate is > 1, then the resulting VOI will be subsampled representation of the input. For example, if the SampleRate=(2,2,2), every other point will be selected, resulting in a volume 1/8th the original size.

virtual void vtkExtractVOI::SetSampleRate ( int  [3])
virtual

Set the sampling rate in the i, j, and k directions. If the rate is > 1, then the resulting VOI will be subsampled representation of the input. For example, if the SampleRate=(2,2,2), every other point will be selected, resulting in a volume 1/8th the original size.

virtual int* vtkExtractVOI::GetSampleRate ( )
virtual

Set the sampling rate in the i, j, and k directions. If the rate is > 1, then the resulting VOI will be subsampled representation of the input. For example, if the SampleRate=(2,2,2), every other point will be selected, resulting in a volume 1/8th the original size.

virtual void vtkExtractVOI::GetSampleRate ( int  data[3])
virtual

Set the sampling rate in the i, j, and k directions. If the rate is > 1, then the resulting VOI will be subsampled representation of the input. For example, if the SampleRate=(2,2,2), every other point will be selected, resulting in a volume 1/8th the original size.

virtual int vtkExtractVOI::RequestUpdateExtent ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protectedvirtual
virtual int vtkExtractVOI::RequestInformation ( vtkInformation *  ,
vtkInformationVector **  ,
vtkInformationVector *   
)
protectedvirtual
virtual int vtkExtractVOI::RequestData ( vtkInformation *  request,
vtkInformationVector **  inputVector,
vtkInformationVector *  outputVector 
)
protectedvirtual

Member Data Documentation

int vtkExtractVOI::VOI[6]
protected

Definition at line 90 of file vtkExtractVOI.h.

int vtkExtractVOI::SampleRate[3]
protected

Definition at line 91 of file vtkExtractVOI.h.


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