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vtkExtractVOI Class Reference

#include <vtkExtractVOI.h>

Inheritance diagram for vtkExtractVOI:

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Collaboration diagram for vtkExtractVOI:

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List of all members.

Detailed Description

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

Date:
2002/08/06 13:55:12
Revision:
1.32

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
Created by:
  • Schroeder, Will
CVS contributions (if > 5%):
  • Schroeder, Will (42%)
  • Martin, Ken (17%)
  • Lorensen, Bill (14%)
  • Avila, Lisa (9%)
  • Geveci, Berk (9%)
CVS logs (CVSweb):
  • .cxx (/Imaging/vtkExtractVOI.cxx)
  • .h (/Imaging/vtkExtractVOI.h)
Examples:
vtkExtractVOI (Examples)
Tests:
vtkExtractVOI (Tests)

Definition at line 67 of file vtkExtractVOI.h.

Public Types

typedef vtkImageToImageFilter Superclass

Public Methods

virtual const char * GetClassName ()
virtual int IsA (const char *type)
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 Methods

int IsTypeOf (const char *type)
vtkExtractVOI * SafeDownCast (vtkObject *o)
vtkExtractVOI * New ()

Protected Methods

 vtkExtractVOI ()
 ~vtkExtractVOI ()
virtual void ComputeInputUpdateExtent (int inExt[6], int outExt[6])
void ExecuteInformation (vtkImageData *input, vtkImageData *output)
void ExecuteInformation ()
virtual void ExecuteData (vtkDataObject *)

Protected Attributes

int VOI [6]
int SampleRate [3]


Member Typedef Documentation

typedef vtkImageToImageFilter vtkExtractVOI::Superclass
 

Reimplemented from vtkImageToImageFilter.

Definition at line 70 of file vtkExtractVOI.h.


Constructor & Destructor Documentation

vtkExtractVOI::vtkExtractVOI   [protected]
 

vtkExtractVOI::~vtkExtractVOI   [inline, protected]
 

Definition at line 95 of file vtkExtractVOI.h.


Member Function Documentation

virtual const char* vtkExtractVOI::GetClassName   [virtual]
 

Reimplemented from vtkImageToImageFilter.

int vtkExtractVOI::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 vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkImageToImageFilter.

virtual int vtkExtractVOI::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 vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkImageToImageFilter.

vtkExtractVOI* vtkExtractVOI::SafeDownCast vtkObject   o [static]
 

Reimplemented from vtkImageToImageFilter.

void vtkExtractVOI::PrintSelf ostream &    os,
vtkIndent    indent
[virtual]
 

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkImageToImageFilter.

vtkExtractVOI* vtkExtractVOI::New   [static]
 

Construct object to extract all of the input data.

Reimplemented from vtkObject.

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 void vtkExtractVOI::ComputeInputUpdateExtent int    inExt[6],
int    outExt[6]
[protected, virtual]
 

Reimplemented from vtkImageToImageFilter.

void vtkExtractVOI::ExecuteInformation vtkImageData   input,
vtkImageData   output
[protected, virtual]
 

Reimplemented from vtkImageToImageFilter.

void vtkExtractVOI::ExecuteInformation   [inline, protected, virtual]
 

Reimplemented from vtkImageToImageFilter.

Definition at line 99 of file vtkExtractVOI.h.

References vtkImageToImageFilter::ExecuteInformation().

virtual void vtkExtractVOI::ExecuteData vtkDataObject   [protected, virtual]
 

Reimplemented from vtkImageToImageFilter.


Member Data Documentation

int vtkExtractVOI::VOI[6] [protected]
 

Definition at line 102 of file vtkExtractVOI.h.

int vtkExtractVOI::SampleRate[3] [protected]
 

Definition at line 103 of file vtkExtractVOI.h.


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