#include <Hdu.h>

Class Description

Base class for ImageHdu and BintableHdu.

This class provides services common to all HDUs for reading and writing records. Services exclusively applicable to MEF files (e.g. HDU name or type) are directly provided as methods, while generic services are accessed through the header() method (refer to the documentation of the Header class).

Note: Hdus are written as Image HDUs with NAXIS = 0.

Examples: EleFitsTutorial.cpp.

Inheritance diagram for Euclid::Fits::Hdu:

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Public Member Functions
virtual	~Hdu ()=default
	Destructor.

long	index () const
	Get the 0-based index of the HDU.

HduCategory	type () const
	Get the type of the HDU. More...

virtual HduCategory	readCategory () const
	Read the category of the HDU. More...

bool	matches (HduFilter filter) const
	Check whether the HDU matches a given filter. More...

template<typename T >
const T &	as () const
	Cast to an ImageHdu or BintableHdu (if possible).

const Header &	header () const
	Access the header unit to read and write records. More...

std::string	readName () const
	Read the extension name.

long	readVersion () const
	Read the extension version.

void	updateName (const std::string &name) const
	Write or update the extension name.

void	updateVersion (long version) const
	Write or update the extension version.

void	verifyChecksums () const
	Compute the HDU and data checksums and compare them to the values in the header. More...

void	updateChecksums () const
	Compute and write (or update) the HDU and data checksums. More...

Protected Member Functions
void	touchThisHdu () const
	Set the current HDU to this one. More...

void	editThisHdu () const
	Set the current HDU to this one for writing. More...

Protected Attributes
fitsfile *&	m_fptr
	The parent file handler. More...

long	m_cfitsioIndex
	The 1-based CFitsIO HDU index. More...

HduCategory	m_type
	The HDU type.

Header	m_header
	The header unit handler.

HduCategory	m_status
	The HDU status. More...

fitsfile *	m_dummyFptr = nullptr
	Dummy file handler dedicated to dummy constructor.

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

EleFits/EleFits/Hdu.h

Class Description

Public Member Functions

Protected Member Functions

Protected Attributes