Template class for storing HDF4 dataset content with attributes. More...

#include <PNeXus.h>

Public Member Functions
	PNXdata ()
	Default constructor.

	PNXdata (const H4DataType &dataType)
	Constructor with datatype.

H4DataType	GetDataType () const
	Get the HDF4 DataType.

void	SetDataType (const H4DataType &dataType)
	Set the HDF4 DataType.

const std::vector< T > &	GetData () const
	Get the data as a vector.

std::vector< T > &	GetData ()
	Get mutable reference to the data vector.

void	SetData (const std::vector< T > &data)
	Set the data vector.

const std::vector< uint32_t > &	GetDimensions () const
	Get the dimensions of the dataset.

void	SetDimensions (const std::vector< uint32_t > &dims)
	Set the dimensions of the dataset.

size_t	GetRank () const
	Get the number of dimensions.

size_t	GetNumElements () const
	Get total number of elements.

void	AddAttribute (const std::string &name, const std::any &value)
	Add an attribute to this dataset.

std::any	GetAttribute (const std::string &name) const
	Get an attribute by name.

bool	HasAttribute (const std::string &name) const
	Check if an attribute exists.

const std::map< std::string, std::any > &	GetAttributes () const
	Get all attributes.

std::map< std::string, std::any > &	GetAttributes ()
	Get mutable reference to all attributes.

Private Attributes
H4DataType	fDataType
	HDF4 datatype of the dataset.

std::vector< T >	fData
	Data storage (flattened multi-dimensional array)

std::vector< uint32_t >	fDimensions
	Dimensions of the dataset.

std::map< std::string, std::any >	fAttributes
	Attributes associated with this dataset.

Detailed Description

template<typename T>
class nxH4::PNXdata< T >

Template class for storing HDF4 dataset content with attributes.

The PNXdata class stores data read from an HDF4 dataset along with metadata such as dimensions, datatype, and attributes. It is designed to be stored in std::map<std::string, std::any> where the key is the HDF4 path.

Template Parameters

T	The element type of the dataset (int, float, std::string, etc.)

Key features:

Stores multi-dimensional data as flattened std::vector<T>
Preserves dimension information (shape)
Stores HDF4 DataType for type safety
Supports attributes as nested PNXdata objects
Compatible with std::any for type-erased storage

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.cpp, and /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 370 of file PNeXus.h.

Constructor & Destructor Documentation

◆ PNXdata() [1/2]

template<typename T>

nxH4::PNXdata< T >::PNXdata ( )

inline

Default constructor.

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 375 of file PNeXus.h.

References fDataType, and nxH4::kINT32.

◆ PNXdata() [2/2]

template<typename T>

nxH4::PNXdata< T >::PNXdata ( const H4DataType & dataType )

inline

Constructor with datatype.

Parameters

dataType HDF4 datatype for this dataset

Definition at line 381 of file PNeXus.h.

References fDataType.

Member Function Documentation

◆ AddAttribute()

template<typename T>

void nxH4::PNXdata< T >::AddAttribute	(	const std::string &	name,
		const std::any &	value )

inline

Add an attribute to this dataset.

Parameters

name	Attribute name
value	Attribute value (stored as std::any to support different types)

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 449 of file PNeXus.h.

References fAttributes.

Referenced by nxH4::PNeXus::ReadDatasetAttributes().

◆ GetAttribute()

template<typename T>

std::any nxH4::PNXdata< T >::GetAttribute ( const std::string & name ) const

inline

Get an attribute by name.

Parameters

name	Attribute name

Returns: The attribute value as std::any

Exceptions

std::out_of_range if attribute doesn't exist

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 459 of file PNeXus.h.

References fAttributes.

◆ GetAttributes() [1/2]

template<typename T>

std::map< std::string, std::any > & nxH4::PNXdata< T >::GetAttributes ( )

inline

Get mutable reference to all attributes.

Returns: Mutable map of attribute names to values

Definition at line 484 of file PNeXus.h.

References fAttributes.

◆ GetAttributes() [2/2]

template<typename T>

const std::map< std::string, std::any > & nxH4::PNXdata< T >::GetAttributes ( ) const

inline

Get all attributes.

Returns: Map of attribute names to values

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 476 of file PNeXus.h.

References fAttributes.

Referenced by nxH4::PNeXus::WriteDatasetAttributes().

◆ GetData() [1/2]

template<typename T>

std::vector< T > & nxH4::PNXdata< T >::GetData ( )

inline

Get mutable reference to the data vector.

Returns: Reference to the data vector

Definition at line 405 of file PNeXus.h.

References fData.

◆ GetData() [2/2]

template<typename T>

const std::vector< T > & nxH4::PNXdata< T >::GetData ( ) const

inline

Get the data as a vector.

Returns: Reference to the data vector

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 399 of file PNeXus.h.

References fData.

Referenced by nxH4::PNeXus::WriteFloatDataset(), nxH4::PNeXus::WriteIntDataset(), and nxH4::PNeXus::WriteStringDataset().

◆ GetDataType()

template<typename T>

H4DataType nxH4::PNXdata< T >::GetDataType ( ) const

inline

Get the HDF4 DataType.

Returns: The HDF4 DataType for this dataset

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 387 of file PNeXus.h.

References fDataType.

◆ GetDimensions()

template<typename T>

const std::vector< uint32_t > & nxH4::PNXdata< T >::GetDimensions ( ) const

inline

Get the dimensions of the dataset.

Returns: Vector of dimension sizes

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 417 of file PNeXus.h.

References fDimensions.

Referenced by nxH4::PNeXus::WriteFloatDataset(), and nxH4::PNeXus::WriteIntDataset().

◆ GetNumElements()

template<typename T>

size_t nxH4::PNXdata< T >::GetNumElements ( ) const

inline

Get total number of elements.

Returns: Product of all dimensions

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 435 of file PNeXus.h.

References fDimensions.

◆ GetRank()

template<typename T>

size_t nxH4::PNXdata< T >::GetRank ( ) const

inline

Get the number of dimensions.

Returns: Number of dimensions (rank)

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 429 of file PNeXus.h.

References fDimensions.

◆ HasAttribute()

template<typename T>

bool nxH4::PNXdata< T >::HasAttribute ( const std::string & name ) const

inline

Check if an attribute exists.

Parameters

name	Attribute name

Returns: true if attribute exists, false otherwise

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 468 of file PNeXus.h.

References fAttributes.

◆ SetData()

template<typename T>

void nxH4::PNXdata< T >::SetData ( const std::vector< T > & data )

inline

Set the data vector.

Parameters

data	Vector of data to store

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 411 of file PNeXus.h.

References fData.

Referenced by nxH4::PNeXus::AddDataset(), nxH4::PNeXus::ReadFloatDataset(), nxH4::PNeXus::ReadIntDataset(), and nxH4::PNeXus::ReadStringDataset().

◆ SetDataType()

template<typename T>

void nxH4::PNXdata< T >::SetDataType ( const H4DataType & dataType )

inline

Set the HDF4 DataType.

Parameters

dataType The HDF4 DataType to set

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 393 of file PNeXus.h.

References fDataType.

◆ SetDimensions()

template<typename T>

void nxH4::PNXdata< T >::SetDimensions ( const std::vector< uint32_t > & dims )

inline

Set the dimensions of the dataset.

Parameters

dims	Vector of dimension sizes

Examples: /workspace/LMU/musrfit/src/external/nexus/PNeXus.h.

Definition at line 423 of file PNeXus.h.

References fDimensions.

Referenced by nxH4::PNeXus::AddDataset(), nxH4::PNeXus::ReadFloatDataset(), nxH4::PNeXus::ReadIntDataset(), and nxH4::PNeXus::ReadStringDataset().

Member Data Documentation

◆ fAttributes

template<typename T>

std::map<std::string, std::any> nxH4::PNXdata< T >::fAttributes

private

Attributes associated with this dataset.

Definition at line 492 of file PNeXus.h.

Referenced by AddAttribute(), GetAttribute(), GetAttributes(), GetAttributes(), and HasAttribute().

◆ fData

template<typename T>

std::vector<T> nxH4::PNXdata< T >::fData

private

Data storage (flattened multi-dimensional array)

Definition at line 490 of file PNeXus.h.

Referenced by GetData(), GetData(), and SetData().

◆ fDataType

template<typename T>

H4DataType nxH4::PNXdata< T >::fDataType

private

HDF4 datatype of the dataset.

Definition at line 489 of file PNeXus.h.

Referenced by GetDataType(), PNXdata(), PNXdata(), and SetDataType().

◆ fDimensions

template<typename T>

std::vector<uint32_t> nxH4::PNXdata< T >::fDimensions

private

Dimensions of the dataset.

Definition at line 491 of file PNeXus.h.

Referenced by GetDimensions(), GetNumElements(), GetRank(), and SetDimensions().

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

/workspace/LMU/musrfit/src/external/nexus/PNeXus.h

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ PNXdata() [1/2]

◆ PNXdata() [2/2]

Member Function Documentation

◆ AddAttribute()

◆ GetAttribute()

◆ GetAttributes() [1/2]

◆ GetAttributes() [2/2]

◆ GetData() [1/2]

◆ GetData() [2/2]

◆ GetDataType()

◆ GetDimensions()

◆ GetNumElements()

◆ GetRank()

◆ HasAttribute()

◆ SetData()

◆ SetDataType()

◆ SetDimensions()

Member Data Documentation

◆ fAttributes

◆ fData

◆ fDataType

◆ fDimensions