ITK  5.3.0
Insight Toolkit
Public Types | Public Member Functions | Protected Member Functions | Private Attributes | List of all members
itk::StreamingProcessObject Class Referenceabstract

#include <itkStreamingProcessObject.h>

+ Inheritance diagram for itk::StreamingProcessObject:
+ Collaboration diagram for itk::StreamingProcessObject:

Public Types

using ConstPointer = SmartPointer< const Self >
using Pointer = SmartPointer< Self >
using Self = StreamingProcessObject
using Superclass = ProcessObject
- Public Types inherited from itk::ProcessObject
using ConstPointer = SmartPointer< const Self >
using DataObjectIdentifierType = DataObject::DataObjectIdentifierType
using DataObjectPointer = DataObject::Pointer
using DataObjectPointerArray = std::vector< DataObjectPointer >
using DataObjectPointerArraySizeType = DataObjectPointerArray::size_type
using MultiThreaderType = MultiThreaderBase
using NameArray = std::vector< DataObjectIdentifierType >
using Pointer = SmartPointer< Self >
using Self = ProcessObject
using Superclass = Object
- Public Types inherited from itk::Object
using ConstPointer = SmartPointer< const Self >
using Pointer = SmartPointer< Self >
using Self = Object
using Superclass = LightObject
- Public Types inherited from itk::LightObject
using ConstPointer = SmartPointer< const Self >
using Pointer = SmartPointer< Self >
using Self = LightObject

Public Member Functions

void GenerateData () override
virtual int GetCurrentRequestNumber () const
virtual const char * GetNameOfClass () const
void PropagateRequestedRegion (DataObject *output) override
void ResetPipeline () override
void UpdateOutputData (DataObject *output) override
- Public Member Functions inherited from itk::ProcessObject
virtual void AbortGenerateDataOn ()
virtual void EnlargeOutputRequestedRegion (DataObject *)
virtual const bool & GetAbortGenerateData () const
DataObjectPointerArray GetIndexedInputs ()
DataObjectPointerArray GetIndexedOutputs ()
NameArray GetInputNames () const
DataObjectPointerArray GetInputs ()
MultiThreaderTypeGetMultiThreader () const
DataObjectPointerArraySizeType GetNumberOfIndexedInputs () const
DataObjectPointerArraySizeType GetNumberOfIndexedOutputs () const
DataObjectPointerArraySizeType GetNumberOfInputs () const
DataObjectPointerArraySizeType GetNumberOfOutputs () const
virtual DataObjectPointerArraySizeType GetNumberOfValidRequiredInputs () const
NameArray GetOutputNames () const
DataObjectPointerArray GetOutputs ()
virtual float GetProgress () const
NameArray GetRequiredInputNames () const
bool HasInput (const DataObjectIdentifierType &key) const
bool HasOutput (const DataObjectIdentifierType &key) const
void IncrementProgress (float increment)
virtual DataObjectPointer MakeOutput (const DataObjectIdentifierType &)
virtual DataObjectPointer MakeOutput (DataObjectPointerArraySizeType idx)
virtual void PrepareOutputs ()
virtual void SetAbortGenerateData (bool _arg)
void SetMultiThreader (MultiThreaderType *threader)
virtual void Update ()
virtual void UpdateLargestPossibleRegion ()
virtual void UpdateOutputInformation ()
void UpdateProgress (float progress)
virtual void SetReleaseDataFlag (bool val)
virtual bool GetReleaseDataFlag () const
void ReleaseDataFlagOn ()
void ReleaseDataFlagOff ()
virtual void SetReleaseDataBeforeUpdateFlag (bool _arg)
virtual const bool & GetReleaseDataBeforeUpdateFlag () const
virtual void ReleaseDataBeforeUpdateFlagOn ()
virtual void SetNumberOfWorkUnits (ThreadIdType _arg)
virtual const ThreadIdTypeGetNumberOfWorkUnits () const
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *)
unsigned long AddObserver (const EventObject &event, Command *) const
unsigned long AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const
LightObject::Pointer CreateAnother () const override
virtual void DebugOff () const
virtual void DebugOn () const
CommandGetCommand (unsigned long tag)
bool GetDebug () const
MetaDataDictionaryGetMetaDataDictionary ()
const MetaDataDictionaryGetMetaDataDictionary () const
virtual ModifiedTimeType GetMTime () const
virtual const TimeStampGetTimeStamp () const
bool HasObserver (const EventObject &event) const
void InvokeEvent (const EventObject &)
void InvokeEvent (const EventObject &) const
virtual void Modified () const
void Register () const override
void RemoveAllObservers ()
void RemoveObserver (unsigned long tag)
void SetDebug (bool debugFlag) const
void SetReferenceCount (int) override
void UnRegister () const noexcept override
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
void SetMetaDataDictionary (MetaDataDictionary &&rrhs)
virtual void SetObjectName (std::string _arg)
virtual const std::string & GetObjectName () const
- Public Member Functions inherited from itk::LightObject
Pointer Clone () const
virtual void Delete ()
virtual int GetReferenceCount () const
void Print (std::ostream &os, Indent indent=0) const

Protected Member Functions

virtual void AfterStreamedGenerateData ()
virtual void BeforeStreamedGenerateData ()
virtual void GenerateNthInputRequestedRegion (unsigned int inputRequestedRegionNumber)=0
virtual unsigned int GetNumberOfInputRequestedRegions ()=0
void PrintSelf (std::ostream &os, Indent indent) const override
virtual void StreamedGenerateData (unsigned int inputRequestedRegionNumber)=0
 StreamingProcessObject ()
 ~StreamingProcessObject () override
- Protected Member Functions inherited from itk::ProcessObject
virtual void AddInput (DataObject *input)
void AddOptionalInputName (const DataObjectIdentifierType &)
void AddOptionalInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)
virtual void AddOutput (DataObject *output)
bool AddRequiredInputName (const DataObjectIdentifierType &)
bool AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)
virtual void CacheInputReleaseDataFlags ()
virtual void GenerateInputRequestedRegion ()
virtual void GenerateOutputInformation ()
virtual void GenerateOutputRequestedRegion (DataObject *output)
DataObjectGetInput (const DataObjectIdentifierType &key)
const DataObjectGetInput (const DataObjectIdentifierType &key) const
virtual const DataObjectPointerArraySizeTypeGetNumberOfRequiredInputs () const
virtual const DataObjectPointerArraySizeTypeGetNumberOfRequiredOutputs () const
bool IsIndexedInputName (const DataObjectIdentifierType &) const
bool IsIndexedOutputName (const DataObjectIdentifierType &) const
bool IsRequiredInputName (const DataObjectIdentifierType &) const
DataObjectPointerArraySizeType MakeIndexFromInputName (const DataObjectIdentifierType &name) const
DataObjectPointerArraySizeType MakeIndexFromOutputName (const DataObjectIdentifierType &name) const
DataObjectIdentifierType MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const
DataObjectIdentifierType MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const
virtual void PopBackInput ()
virtual void PopFrontInput ()
 ProcessObject ()
virtual void PropagateResetPipeline ()
virtual void PushBackInput (const DataObject *input)
virtual void PushFrontInput (const DataObject *input)
virtual void ReleaseInputs ()
virtual void RemoveInput (const DataObjectIdentifierType &key)
virtual void RemoveInput (DataObjectPointerArraySizeType)
virtual void RemoveOutput (const DataObjectIdentifierType &key)
virtual void RemoveOutput (DataObjectPointerArraySizeType idx)
bool RemoveRequiredInputName (const DataObjectIdentifierType &)
virtual void RestoreInputReleaseDataFlags ()
virtual void SetInput (const DataObjectIdentifierType &key, DataObject *input)
virtual void SetNthInput (DataObjectPointerArraySizeType idx, DataObject *input)
virtual void SetNthOutput (DataObjectPointerArraySizeType idx, DataObject *output)
void SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)
void SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)
virtual void SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)
virtual void SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)
virtual void SetOutput (const DataObjectIdentifierType &name, DataObject *output)
virtual void SetPrimaryInput (DataObject *object)
virtual void SetPrimaryOutput (DataObject *object)
void SetRequiredInputNames (const NameArray &)
virtual void VerifyInputInformation () ITKv5_CONST
virtual void VerifyPreconditions () ITKv5_CONST
 ~ProcessObject () override
DataObjectGetInput (DataObjectPointerArraySizeType idx)
const DataObjectGetInput (DataObjectPointerArraySizeType idx) const
DataObjectGetPrimaryInput ()
const DataObjectGetPrimaryInput () const
virtual void SetPrimaryInputName (const DataObjectIdentifierType &key)
virtual const char * GetPrimaryInputName () const
DataObjectGetOutput (const DataObjectIdentifierType &key)
const DataObjectGetOutput (const DataObjectIdentifierType &key) const
virtual void SetPrimaryOutputName (const DataObjectIdentifierType &key)
virtual const char * GetPrimaryOutputName () const
DataObjectGetOutput (DataObjectPointerArraySizeType i)
const DataObjectGetOutput (DataObjectPointerArraySizeType i) const
DataObjectGetPrimaryOutput ()
const DataObjectGetPrimaryOutput () const
virtual bool GetThreaderUpdateProgress () const
virtual void ThreaderUpdateProgressOn ()
virtual void SetThreaderUpdateProgress (bool arg)
- Protected Member Functions inherited from itk::Object
 Object ()
bool PrintObservers (std::ostream &os, Indent indent) const
virtual void SetTimeStamp (const TimeStamp &timeStamp)
 ~Object () override
- Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer InternalClone () const
 LightObject ()
virtual void PrintHeader (std::ostream &os, Indent indent) const
virtual void PrintTrailer (std::ostream &os, Indent indent) const
virtual ~LightObject ()

Private Attributes

int m_CurrentRequestNumber { -1 }

Additional Inherited Members

- Static Public Member Functions inherited from itk::Object
static bool GetGlobalWarningDisplay ()
static void GlobalWarningDisplayOff ()
static void GlobalWarningDisplayOn ()
static Pointer New ()
static void SetGlobalWarningDisplay (bool val)
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
static Pointer New ()
- Static Protected Member Functions inherited from itk::ProcessObject
static constexpr float progressFixedToFloat (uint32_t fixed)
static uint32_t progressFloatToFixed (float f)
- Protected Attributes inherited from itk::ProcessObject
TimeStamp m_OutputInformationMTime
bool m_Updating
- Protected Attributes inherited from itk::LightObject
std::atomic< int > m_ReferenceCount

Detailed Description

Base class interface to process data on multiple requested input chunks.

Streaming allows the data to be split into chunks and processed separately. The StreamingProcessObject class extends functionally to execute the primary input's pipeline multiple times over different requested regions. After each requested region is generated by the upstream pipeline the StreamedGenerateData method is called.

Definition at line 40 of file itkStreamingProcessObject.h.

Member Typedef Documentation

◆ ConstPointer

Definition at line 49 of file itkStreamingProcessObject.h.

◆ Pointer

Definition at line 48 of file itkStreamingProcessObject.h.

◆ Self

Standard class types.

Definition at line 46 of file itkStreamingProcessObject.h.

◆ Superclass

Definition at line 47 of file itkStreamingProcessObject.h.

Constructor & Destructor Documentation

◆ StreamingProcessObject()

itk::StreamingProcessObject::StreamingProcessObject ( )

◆ ~StreamingProcessObject()

itk::StreamingProcessObject::~StreamingProcessObject ( )

Member Function Documentation

◆ AfterStreamedGenerateData()

virtual void itk::StreamingProcessObject::AfterStreamedGenerateData ( )

◆ BeforeStreamedGenerateData()

virtual void itk::StreamingProcessObject::BeforeStreamedGenerateData ( )

◆ GenerateData()

void itk::StreamingProcessObject::GenerateData ( )

This method causes the filter to generate its output.

Reimplemented from itk::ProcessObject.

◆ GenerateNthInputRequestedRegion()

virtual void itk::StreamingProcessObject::GenerateNthInputRequestedRegion ( unsigned int  inputRequestedRegionNumber)
protectedpure virtual

For each streamed region, propagate request to all inputs.

Derived classes should overload this method to compute regions splits and propagate to the particular DataObject types used for the input.

Implemented in itk::ImageSink< TInputImage >, itk::ImageSink< TImage >, and itk::ImageSink< TLabelImage >.

◆ GetCurrentRequestNumber()

virtual int itk::StreamingProcessObject::GetCurrentRequestNumber ( ) const

The current requested region number during execution. The value -1, is used when the pipeline is not currently being updated.

◆ GetNameOfClass()

virtual const char* itk::StreamingProcessObject::GetNameOfClass ( ) const

◆ GetNumberOfInputRequestedRegions()

virtual unsigned int itk::StreamingProcessObject::GetNumberOfInputRequestedRegions ( )
protectedpure virtual

Return the actual number of regions to request upstream.

This method can be overloaded to return one, when a derived filter is unable stream.

Implemented in itk::Statistics::ImageToHistogramFilter< TImage >, itk::ImageSink< TInputImage >, itk::ImageSink< TImage >, and itk::ImageSink< TLabelImage >.

◆ PrintSelf()

void itk::StreamingProcessObject::PrintSelf ( std::ostream &  os,
Indent  indent 
) const

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 itk::ProcessObject.

Reimplemented in itk::LabelStatisticsImageFilter< TInputImage, TLabelImage >, itk::LabelOverlapMeasuresImageFilter< TLabelImage >, itk::Statistics::ImageToHistogramFilter< TImage >, itk::ImageSink< TImage >, itk::ImageSink< TLabelImage >, itk::StatisticsImageFilter< TInputImage >, and itk::MinimumMaximumImageFilter< TInputImage >.

◆ PropagateRequestedRegion()

void itk::StreamingProcessObject::PropagateRequestedRegion ( DataObject output)

Override PropagateRequestedRegion from ProcessObject Since inside UpdateOutputData we iterate over streaming pieces we don't need to proapage up the pipeline

Reimplemented from itk::ProcessObject.

◆ ResetPipeline()

void itk::StreamingProcessObject::ResetPipeline ( )

Reset the pipeline.

If an exception is thrown during an Update(), the pipeline may be in an inconsistent state. This method clears the internal state of the pipeline so Update() can be called.

Reimplemented from itk::ProcessObject.

◆ StreamedGenerateData()

virtual void itk::StreamingProcessObject::StreamedGenerateData ( unsigned int  inputRequestedRegionNumber)
protectedpure virtual

This method will be called multiple times for each requested region generated by the input.

Implemented in itk::ImageSink< TInputImage >, itk::ImageSink< TImage >, itk::ImageSink< TLabelImage >, and itk::Statistics::ImageToHistogramFilter< TImage >.

◆ UpdateOutputData()

void itk::StreamingProcessObject::UpdateOutputData ( DataObject output)

Override UpdateOutputData() from ProcessObject to divide upstream updates into pieces.

Reimplemented from itk::ProcessObject.

Member Data Documentation

◆ m_CurrentRequestNumber

int itk::StreamingProcessObject::m_CurrentRequestNumber { -1 }

Definition at line 119 of file itkStreamingProcessObject.h.

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