select piece (e.g., volume of interest) and/or subsample structured points dataset More...
#include <vtkExtractVOI.h>
Public Types | |
| typedef vtkImageAlgorithm | Superclass |
Public Member Functions | |
| virtual int | IsA (const char *type) |
| vtkExtractVOI * | NewInstance () 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 vtkExtractVOI * | SafeDownCast (vtkObjectBase *o) |
| static vtkExtractVOI * | New () |
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.
- Examples:
- vtkExtractVOI (Examples)
- Tests:
- vtkExtractVOI (Tests)
Definition at line 50 of file vtkExtractVOI.h.
Member Typedef Documentation
Reimplemented from vtkImageAlgorithm.
Definition at line 53 of file vtkExtractVOI.h.
Constructor & Destructor Documentation
| vtkExtractVOI::vtkExtractVOI | ( | ) | [protected] |
| vtkExtractVOI::~vtkExtractVOI | ( | ) | [inline, protected] |
Definition at line 78 of file vtkExtractVOI.h.
Member Function Documentation
| 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 | ( | vtkObjectBase * | o | ) | [static] |
Reimplemented from vtkImageAlgorithm.
| virtual vtkObjectBase* vtkExtractVOI::NewInstanceInternal | ( | ) | const [protected, virtual] |
Reimplemented from vtkImageAlgorithm.
| vtkExtractVOI* vtkExtractVOI::NewInstance | ( | ) | const |
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.
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] |
Subclasses can reimplement this method to translate the update extent requests from each output port into update extent requests for the input connections.
Reimplemented from vtkImageAlgorithm.
| virtual int vtkExtractVOI::RequestInformation | ( | vtkInformation * | request, |
| vtkInformationVector ** | inputVector, | ||
| vtkInformationVector * | outputVector | ||
| ) | [protected, virtual] |
Subclasses can reimplement this method to collect information from their inputs and set information for their outputs.
Reimplemented from vtkImageAlgorithm.
| virtual int vtkExtractVOI::RequestData | ( | vtkInformation * | request, |
| vtkInformationVector ** | inputVector, | ||
| vtkInformationVector * | outputVector | ||
| ) | [protected, virtual] |
This is called in response to a REQUEST_DATA request from the executive. Subclasses should override either this method or the ExecuteDataWithInformation method in order to generate data for their outputs. For images, the output arrays will already be allocated, so all that is necessary is to fill in the voxel values.
Reimplemented from vtkImageAlgorithm.
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:
- dox/Imaging/Core/vtkExtractVOI.h
