ITK
6.0.0
Insight Toolkit
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#include <itkHilbertPath.h>
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
Definition at line 54 of file itkHilbertPath.h.
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< ProcessObject > | GetSource () const |
DataObjectPointerArraySizeType | GetSourceOutputIndex () const |
const DataObjectIdentifierType & | GetSourceOutputName () 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 ModifiedTimeType & | GetPipelineMTime () const |
virtual void | SetRealTimeStamp (RealTimeStamp _arg) |
virtual const RealTimeStamp & | GetRealTimeStamp () 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 |
Command * | GetCommand (unsigned long tag) |
bool | GetDebug () const |
MetaDataDictionary & | GetMetaDataDictionary () |
const MetaDataDictionary & | GetMetaDataDictionary () const |
virtual ModifiedTimeType | GetMTime () const |
const char * | GetNameOfClass () const override |
virtual const TimeStamp & | GetTimeStamp () 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 {} |
using itk::HilbertPath< TIndexValue, VDimension >::ConstPointer = SmartPointer<const Self> |
Definition at line 63 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::HilbertOrderType = unsigned int |
Definition at line 81 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::HilbertPathSizeType = typename HilbertPathType::size_type |
Definition at line 83 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::HilbertPathType = std::vector<IndexType> |
Definition at line 82 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::IndexType = OutputType |
Definition at line 80 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::PathIndexType = InputType |
The input/output type alias
Definition at line 79 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::Pointer = SmartPointer<Self> |
Definition at line 62 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::Self = HilbertPath<TIndexValue, VDimension> |
Standard class type aliases.
Definition at line 60 of file itkHilbertPath.h.
using itk::HilbertPath< TIndexValue, VDimension >::Superclass = Path<unsigned int, Index<VDimension>, VDimension> |
Definition at line 61 of file itkHilbertPath.h.
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Remove all steps from the path
Definition at line 126 of file itkHilbertPath.h.
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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.
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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.
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inlinevirtual |
Evaluate the hilbert path for the path-position at the specified index.
Definition at line 103 of file itkHilbertPath.h.
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inlineoverridevirtual |
Like Evaluate(), except always returns an index
Implements itk::Path< unsigned int, Index< 3 >, 3 >.
Definition at line 96 of file itkHilbertPath.h.
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Set/get Hilbert order. The multi-dimensional space is of size 2^(HilbertOrder).
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overridevirtual |
Reimplemented from itk::DataObject.
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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.
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inlineoverridevirtual |
Needed for Pipelining
Reimplemented from itk::DataObject.
Definition at line 142 of file itkHilbertPath.h.
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New() method for dynamic construction
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inlinevirtual |
How many steps in the path?
Definition at line 135 of file itkHilbertPath.h.
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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.
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Set/get Hilbert order. The multi-dimensional space is of size 2^(HilbertOrder).
PathIndexType itk::HilbertPath< TIndexValue, VDimension >::TransformMultiDimensionalIndexToPathIndex | ( | const IndexType & | index | ) |
Convert the multidimensional index to the path index
IndexType itk::HilbertPath< TIndexValue, VDimension >::TransformPathIndexToMultiDimensionalIndex | ( | const PathIndexType | id | ) |
Convert the path index to the multidimensional index location
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Dimension underlying input image.
Definition at line 72 of file itkHilbertPath.h.
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Definition at line 207 of file itkHilbertPath.h.
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Definition at line 208 of file itkHilbertPath.h.