ITK  6.0.0
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itk::HilbertPath< TIndexValue, VDimension > Class Template Reference

#include <itkHilbertPath.h>

Detailed Description

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
class itk::HilbertPath< TIndexValue, VDimension >

Represent an n-dimensional Hilbert path for a given order.

This class is used to construct a Hilbert spacing-filling curve (or path) for a given order and given dimension. The locality- preserving properties make the Hilbert path an attractive option for mapping multi-dimensional data to a single array.

The path is defined by its dimensionality and order( >= 1 ) with its starting point at [0]^Dimension. The size of the path in each dimension is 2^order where each discrete location is visited by that path. For example, a 2-D Hilbert path of order 8 can map each pixel of a 256x256 image onto a single array. More properties and visualizations can be found in various places on the web.

The implementation is based on Chris Hamilton, "Compact Hilbert Indices", Technical Report CS-2006-07, July 24, 2006. and a direct porting of the Aldo Cortesi's python code found at https://github.com/cortesi/scurve

Author
Nick Tustison

Definition at line 54 of file itkHilbertPath.h.

+ Inheritance diagram for itk::HilbertPath< TIndexValue, VDimension >:
+ Collaboration diagram for itk::HilbertPath< TIndexValue, VDimension >:

Public Types

using ConstPointer = SmartPointer< const Self >
 
using HilbertOrderType = unsigned int
 
using HilbertPathSizeType = typename HilbertPathType::size_type
 
using HilbertPathType = std::vector< IndexType >
 
using IndexType = OutputType
 
using PathIndexType = InputType
 
using Pointer = SmartPointer< Self >
 
using Self = HilbertPath< TIndexValue, VDimension >
 
using Superclass = Path< unsigned int, Index< VDimension >, VDimension >
 
- Public Types inherited from itk::Path< unsigned int, Index< 3 >, 3 >
using ConstPointer = SmartPointer< const Self >
 
using IndexType = Index< VDimension >
 
using InputType = unsigned int
 
using OffsetType = Offset< VDimension >
 
using OutputType = Index< 3 >
 
using Pointer = SmartPointer< Self >
 
using Self = Path
 
using Superclass = DataObject
 
- Public Types inherited from itk::DataObject
using ConstPointer = SmartPointer< const Self >
 
using DataObjectIdentifierType = std::string
 
using DataObjectPointerArraySizeType = std::vector< Pointer >::size_type
 
using Pointer = SmartPointer< Self >
 
using Self = DataObject
 
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

InputType EndOfInput () const override
 
OutputType Evaluate (const PathIndexType &input) const override
 
virtual InputType EvaluateInverse (const IndexType &input)
 
OutputType EvaluateToIndex (const PathIndexType &input) const override
 
const char * GetNameOfClass () const override
 
OffsetType IncrementInput (InputType &) const override
 
virtual HilbertPathSizeType NumberOfSteps () const
 
PathIndexType TransformMultiDimensionalIndexToPathIndex (const IndexType &index)
 
IndexType TransformPathIndexToMultiDimensionalIndex (const PathIndexType id)
 
virtual void Clear ()
 
void Initialize () override
 
virtual void SetHilbertOrder (HilbertOrderType _arg)
 
virtual HilbertOrderType GetHilbertOrder () const
 
- Public Member Functions inherited from itk::Path< unsigned int, Index< 3 >, 3 >
virtual InputType EndOfInput () const
 
virtual OutputType Evaluate (const InputType &input) const=0
 
virtual IndexType EvaluateToIndex (const InputType &input) const=0
 
const char * GetNameOfClass () const override
 
virtual OffsetType IncrementInput (InputType &input) const=0
 
virtual InputType StartOfInput () const
 
- Public Member Functions inherited from itk::DataObject
virtual void CopyInformation (const DataObject *)
 
virtual void DataHasBeenGenerated ()
 
void DisconnectPipeline ()
 
bool GetDataReleased () const
 
const char * GetNameOfClass () const override
 
virtual const bool & GetReleaseDataFlag () const
 
SmartPointer< ProcessObjectGetSource () const
 
DataObjectPointerArraySizeType GetSourceOutputIndex () const
 
const DataObjectIdentifierTypeGetSourceOutputName () const
 
virtual ModifiedTimeType GetUpdateMTime () const
 
virtual void Graft (const DataObject *)
 
virtual void Initialize ()
 
virtual void PrepareForNewData ()
 
virtual void PropagateRequestedRegion ()
 
void ReleaseData ()
 
virtual void ReleaseDataFlagOn ()
 
virtual bool RequestedRegionIsOutsideOfTheBufferedRegion ()
 
virtual void ResetPipeline ()
 
void SetReleaseDataFlag (bool flag)
 
virtual void SetRequestedRegion (const DataObject *)
 
virtual void SetRequestedRegionToLargestPossibleRegion ()
 
bool ShouldIReleaseData () const
 
virtual void Update ()
 
virtual void UpdateOutputData ()
 
virtual void UpdateOutputInformation ()
 
void UpdateSource () const
 
virtual bool VerifyRequestedRegion ()
 
void SetPipelineMTime (ModifiedTimeType time)
 
virtual const ModifiedTimeTypeGetPipelineMTime () const
 
virtual void SetRealTimeStamp (RealTimeStamp _arg)
 
virtual const RealTimeStampGetRealTimeStamp () const
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *cmd) 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
 
const char * GetNameOfClass () const override
 
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) const
 
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 Pointer CreateAnother () const
 
virtual void Delete ()
 
virtual const char * GetNameOfClass () const
 
virtual int GetReferenceCount () const
 
void Print (std::ostream &os, Indent indent=0) const
 
virtual void Register () const
 
virtual void SetReferenceCount (int)
 
virtual void UnRegister () const noexcept
 

Static Public Member Functions

static Pointer New ()
 
- Static Public Member Functions inherited from itk::DataObject
static bool GetGlobalReleaseDataFlag ()
 
static void GlobalReleaseDataFlagOff ()
 
static void GlobalReleaseDataFlagOn ()
 
static Pointer New ()
 
static void SetGlobalReleaseDataFlag (bool val)
 
- 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 Public Attributes

static constexpr unsigned int Dimension = VDimension
 
- Static Public Attributes inherited from itk::Path< unsigned int, Index< 3 >, 3 >
static constexpr unsigned int PathDimension
 

Protected Member Functions

 HilbertPath ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~HilbertPath () override=default
 
- Protected Member Functions inherited from itk::Path< unsigned int, Index< 3 >, 3 >
virtual IndexType GetZeroIndex () const
 
virtual OffsetType GetZeroOffset () const
 
 Path ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~Path () override=default
 
- Protected Member Functions inherited from itk::DataObject
 DataObject ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
virtual void PropagateResetPipeline ()
 
 ~DataObject () override
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
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 PrintSelf (std::ostream &os, Indent indent) const
 
virtual void PrintTrailer (std::ostream &os, Indent indent) const
 
virtual ~LightObject ()
 

Private Member Functions

void ConstructHilbertPath ()
 
PathIndexType GetBitRange (const PathIndexType, const PathIndexType, const PathIndexType, const PathIndexType)
 
PathIndexType GetDirection (const PathIndexType, const PathIndexType)
 
PathIndexType GetEntry (const PathIndexType)
 
PathIndexType GetGrayCode (const PathIndexType)
 
PathIndexType GetInverseGrayCode (const PathIndexType)
 
PathIndexType GetInverseTransform (const PathIndexType, const PathIndexType, const PathIndexType, const PathIndexType)
 
PathIndexType GetLeftBitRotation (PathIndexType, PathIndexType, const PathIndexType)
 
PathIndexType GetRightBitRotation (PathIndexType, PathIndexType, const PathIndexType)
 
PathIndexType GetTrailingSetBits (const PathIndexType, const PathIndexType)
 
PathIndexType GetTransform (const PathIndexType, const PathIndexType, const PathIndexType, const PathIndexType)
 
PathIndexType SetBit (const PathIndexType, const PathIndexType, const PathIndexType, const PathIndexType)
 

Private Attributes

HilbertOrderType m_HilbertOrder { 1 }
 
HilbertPathType m_HilbertPath {}
 

Additional Inherited Members

- Protected Attributes inherited from itk::LightObject
std::atomic< int > m_ReferenceCount {}
 

Member Typedef Documentation

◆ ConstPointer

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::ConstPointer = SmartPointer<const Self>

Definition at line 63 of file itkHilbertPath.h.

◆ HilbertOrderType

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::HilbertOrderType = unsigned int

Definition at line 81 of file itkHilbertPath.h.

◆ HilbertPathSizeType

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::HilbertPathSizeType = typename HilbertPathType::size_type

Definition at line 83 of file itkHilbertPath.h.

◆ HilbertPathType

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::HilbertPathType = std::vector<IndexType>

Definition at line 82 of file itkHilbertPath.h.

◆ IndexType

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::IndexType = OutputType

Definition at line 80 of file itkHilbertPath.h.

◆ PathIndexType

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::PathIndexType = InputType

The input/output type alias

Definition at line 79 of file itkHilbertPath.h.

◆ Pointer

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::Pointer = SmartPointer<Self>

Definition at line 62 of file itkHilbertPath.h.

◆ Self

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::Self = HilbertPath<TIndexValue, VDimension>

Standard class type aliases.

Definition at line 60 of file itkHilbertPath.h.

◆ Superclass

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
using itk::HilbertPath< TIndexValue, VDimension >::Superclass = Path<unsigned int, Index<VDimension>, VDimension>

Definition at line 61 of file itkHilbertPath.h.

Constructor & Destructor Documentation

◆ HilbertPath()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
itk::HilbertPath< TIndexValue, VDimension >::HilbertPath ( )
protected

◆ ~HilbertPath()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
itk::HilbertPath< TIndexValue, VDimension >::~HilbertPath ( )
overrideprotecteddefault

Member Function Documentation

◆ Clear()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
virtual void itk::HilbertPath< TIndexValue, VDimension >::Clear ( )
inlinevirtual

Remove all steps from the path

Definition at line 126 of file itkHilbertPath.h.

◆ ConstructHilbertPath()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
void itk::HilbertPath< TIndexValue, VDimension >::ConstructHilbertPath ( )
private

◆ EndOfInput()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
InputType itk::HilbertPath< TIndexValue, VDimension >::EndOfInput ( ) const
inlineoverridevirtual

Where does the path end (what is the last valid input value)?

Reimplemented from itk::Path< unsigned int, Index< 3 >, 3 >.

Definition at line 110 of file itkHilbertPath.h.

◆ Evaluate()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
OutputType itk::HilbertPath< TIndexValue, VDimension >::Evaluate ( const PathIndexType input) const
inlineoverridevirtual

Evaluate the hilbert path for the index at the specified path-position.

Implements itk::Path< unsigned int, Index< 3 >, 3 >.

Definition at line 90 of file itkHilbertPath.h.

◆ EvaluateInverse()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
virtual InputType itk::HilbertPath< TIndexValue, VDimension >::EvaluateInverse ( const IndexType input)
inlinevirtual

Evaluate the hilbert path for the path-position at the specified index.

Definition at line 103 of file itkHilbertPath.h.

◆ EvaluateToIndex()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
OutputType itk::HilbertPath< TIndexValue, VDimension >::EvaluateToIndex ( const PathIndexType input) const
inlineoverridevirtual

Like Evaluate(), except always returns an index

Implements itk::Path< unsigned int, Index< 3 >, 3 >.

Definition at line 96 of file itkHilbertPath.h.

◆ GetBitRange()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetBitRange ( const  PathIndexType,
const  PathIndexType,
const  PathIndexType,
const  PathIndexType 
)
private

◆ GetDirection()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetDirection ( const  PathIndexType,
const  PathIndexType 
)
private

◆ GetEntry()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetEntry ( const  PathIndexType)
private

◆ GetGrayCode()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetGrayCode ( const  PathIndexType)
private

◆ GetHilbertOrder()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
virtual HilbertOrderType itk::HilbertPath< TIndexValue, VDimension >::GetHilbertOrder ( ) const
virtual

Set/get Hilbert order. The multi-dimensional space is of size 2^(HilbertOrder).

◆ GetInverseGrayCode()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetInverseGrayCode ( const  PathIndexType)
private

◆ GetInverseTransform()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetInverseTransform ( const  PathIndexType,
const  PathIndexType,
const  PathIndexType,
const  PathIndexType 
)
private

◆ GetLeftBitRotation()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetLeftBitRotation ( PathIndexType  ,
PathIndexType  ,
const  PathIndexType 
)
private

◆ GetNameOfClass()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
const char * itk::HilbertPath< TIndexValue, VDimension >::GetNameOfClass ( ) const
overridevirtual
See also
LightObject::GetNameOfClass()

Reimplemented from itk::DataObject.

◆ GetRightBitRotation()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetRightBitRotation ( PathIndexType  ,
PathIndexType  ,
const  PathIndexType 
)
private

◆ GetTrailingSetBits()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetTrailingSetBits ( const  PathIndexType,
const  PathIndexType 
)
private

◆ GetTransform()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::GetTransform ( const  PathIndexType,
const  PathIndexType,
const  PathIndexType,
const  PathIndexType 
)
private

◆ IncrementInput()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
OffsetType itk::HilbertPath< TIndexValue, VDimension >::IncrementInput ( InputType ) const
inlineoverridevirtual

Increment the input variable passed by reference and then return the index stored at the new path-position.

Implements itk::Path< unsigned int, Index< 3 >, 3 >.

Definition at line 119 of file itkHilbertPath.h.

◆ Initialize()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
void itk::HilbertPath< TIndexValue, VDimension >::Initialize ( )
inlineoverridevirtual

Needed for Pipelining

Reimplemented from itk::DataObject.

Definition at line 142 of file itkHilbertPath.h.

◆ New()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
static Pointer itk::HilbertPath< TIndexValue, VDimension >::New ( )
static

New() method for dynamic construction

◆ NumberOfSteps()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
virtual HilbertPathSizeType itk::HilbertPath< TIndexValue, VDimension >::NumberOfSteps ( ) const
inlinevirtual

How many steps in the path?

Definition at line 135 of file itkHilbertPath.h.

◆ PrintSelf()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
void itk::HilbertPath< TIndexValue, VDimension >::PrintSelf ( std::ostream &  os,
Indent  indent 
) const
overrideprotectedvirtual

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::DataObject.

◆ SetBit()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::SetBit ( const  PathIndexType,
const  PathIndexType,
const  PathIndexType,
const  PathIndexType 
)
private

◆ SetHilbertOrder()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
virtual void itk::HilbertPath< TIndexValue, VDimension >::SetHilbertOrder ( HilbertOrderType  _arg)
virtual

Set/get Hilbert order. The multi-dimensional space is of size 2^(HilbertOrder).

◆ TransformMultiDimensionalIndexToPathIndex()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::TransformMultiDimensionalIndexToPathIndex ( const IndexType index)

Convert the multidimensional index to the path index

◆ TransformPathIndexToMultiDimensionalIndex()

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
IndexType itk::HilbertPath< TIndexValue, VDimension >::TransformPathIndexToMultiDimensionalIndex ( const PathIndexType  id)

Convert the path index to the multidimensional index location

Member Data Documentation

◆ Dimension

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
constexpr unsigned int itk::HilbertPath< TIndexValue, VDimension >::Dimension = VDimension
staticconstexpr

Dimension underlying input image.

Definition at line 72 of file itkHilbertPath.h.

◆ m_HilbertOrder

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
HilbertOrderType itk::HilbertPath< TIndexValue, VDimension >::m_HilbertOrder { 1 }
private

Definition at line 207 of file itkHilbertPath.h.

◆ m_HilbertPath

template<typename TIndexValue = unsigned int, unsigned int VDimension = 3>
HilbertPathType itk::HilbertPath< TIndexValue, VDimension >::m_HilbertPath {}
private

Definition at line 208 of file itkHilbertPath.h.


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