#include <vtkExtractVOI.h>
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.
Definition at line 49 of file vtkExtractVOI.h.
Public Types | |
typedef vtkImageAlgorithm | Superclass |
Public Member Functions | |
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 Member Functions | |
static int | IsTypeOf (const char *type) |
static vtkExtractVOI * | SafeDownCast (vtkObject *o) |
static vtkExtractVOI * | New () |
Protected Member Functions | |
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] |
vtkExtractVOI::vtkExtractVOI | ( | ) | [protected] |
vtkExtractVOI::~vtkExtractVOI | ( | ) | [inline, protected] |
Definition at line 77 of file vtkExtractVOI.h.
virtual const char* vtkExtractVOI::GetClassName | ( | ) | [virtual] |
Reimplemented from vtkImageAlgorithm.
static int vtkExtractVOI::IsTypeOf | ( | const char * | name | ) | [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 vtkImageAlgorithm.
virtual int vtkExtractVOI::IsA | ( | const char * | name | ) | [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 vtkImageAlgorithm.
static vtkExtractVOI* vtkExtractVOI::SafeDownCast | ( | vtkObject * | o | ) | [static] |
Reimplemented from vtkImageAlgorithm.
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 vtkImageAlgorithm.
static vtkExtractVOI* vtkExtractVOI::New | ( | ) | [static] |
Construct object to extract all of the input data.
Reimplemented from vtkAlgorithm.
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 * | ||||
) | [protected, virtual] |
Reimplemented from vtkImageAlgorithm.
virtual int vtkExtractVOI::RequestInformation | ( | vtkInformation * | , | |
vtkInformationVector ** | , | |||
vtkInformationVector * | ||||
) | [protected, virtual] |
Reimplemented from vtkImageAlgorithm.
virtual int vtkExtractVOI::RequestData | ( | vtkInformation * | request, | |
vtkInformationVector ** | inputVector, | |||
vtkInformationVector * | outputVector | |||
) | [protected, virtual] |
This is called by the superclass. This is the method you should override.
Reimplemented from vtkImageAlgorithm.
int vtkExtractVOI::VOI[6] [protected] |
Definition at line 89 of file vtkExtractVOI.h.
int vtkExtractVOI::SampleRate[3] [protected] |
Definition at line 90 of file vtkExtractVOI.h.