FITS file interface class.

TFITSHDU is a class that allows extracting images and data from FITS files and contains several methods to manage them.

Definition at line 35 of file TFITS.h.

Classes
union	Cell

struct	Column

struct	HDURecord

Public Types
enum	EColumnTypes { kString , kRealNumber , kRealArray , kRealVector }

enum	EHDUTypes { kImageHDU , kTableHDU }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

enum	EStatusBits { kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) , kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }

Public Member Functions
	TFITSHDU (const char filepath, const char extension_name)
	TFITSHDU constructor from filepath and extension name. More...

	TFITSHDU (const char *filepath, Int_t extension_number)
	TFITSHDU constructor from filepath and extension number. More...

	TFITSHDU (const char *filepath_with_filter)
	TFITSHDU constructor from file path with HDU selection filter. More...

	~TFITSHDU ()
	TFITSHDU destructor. More...

Bool_t	Change (const char *filter)
	Change to another HDU given by "filter". More...

Bool_t	Change (Int_t extension_number)
	Change to another HDU given by extension_number. More...

void	Draw (Option_t *opt="")
	If the HDU is an image, draw the first layer of the primary array To set a title to the canvas, pass it in "opt". More...

TVectorD *	GetArrayColumn (UInt_t col)
	Get a column from the image HDU when it's a 2D array. More...

TVectorD *	GetArrayRow (UInt_t row)
	Get a row from the image HDU when it's a 2D array. More...

const TString &	GetColumnName (Int_t colnum)
	Get the name of a column given its index (column>=0). More...

Int_t	GetColumnNumber (const char *colname)
	Get column number given its name. More...

TString &	GetKeywordValue (const char *keyword)
	Get the value of a given keyword. Return "" if not found. More...

struct HDURecord *	GetRecord (const char *keyword)
	Get record by keyword. More...

Int_t	GetRecordNumber () const

Int_t	GetTabNColumns () const

Int_t	GetTabNRows () const

TVectorD *	GetTabRealVectorCell (Int_t rownum, const char *colname)
	Get a real vector embedded in a cell given by (row>=0, column name) More...

TVectorD *	GetTabRealVectorCell (Int_t rownum, Int_t colnum)
	Get a real array (with fixed or variable-length) embedded in a cell given by (row>=0, column>=0) More...

TObjArray *	GetTabRealVectorCells (const char *colname)
	Get a collection of real vectors embedded in cells along a given column from a table HDU by name. More...

TObjArray *	GetTabRealVectorCells (Int_t colnum)
	Get a collection of real vectors embedded in cells along a given column from a table HDU. colnum >= 0. More...

TVectorD *	GetTabRealVectorColumn (const char *colname)
	Get a real number-typed column from a table HDU given its name. More...

TVectorD *	GetTabRealVectorColumn (Int_t colnum)
	Get a real number-typed column from a table HDU given its column index (>=0). More...

TObjArray *	GetTabStringColumn (const char *colname)
	Get a string-typed column from a table HDU given its name. More...

TObjArray *	GetTabStringColumn (Int_t colnum)
	Get a string-typed column from a table HDU given its column index (>=0). More...

TArrayD *	GetTabVarLengthVectorCell (Int_t rownum, const char *colname)
	Get the variable-length array contained in a cell given by (row>=0, column name) More...

TArrayD *	GetTabVarLengthVectorCell (Int_t rownum, Int_t colnum)
	Get the variable-length array contained in a cell given by (row>=0, column name) More...

void	Print (const Option_t *opt="") const
	Print metadata. More...

TH1 *	ReadAsHistogram ()
	Read image HDU as a histogram. More...

TImage *	ReadAsImage (Int_t layer=0, TImagePalette *pal=0)
	Read image HDU as a displayable image. More...

TMatrixD *	ReadAsMatrix (Int_t layer=0, Option_t *opt="")
	Read image HDU as a matrix. More...

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor. More...

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor. More...

virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...

virtual void	Copy (TObject &named) const
	Copy this to obj. More...

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

virtual Bool_t	IsSortable () const

virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...

virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...

virtual void	SetName (const char *name)
	Set the name of the TNamed. More...

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title). More...

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed. More...

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor. More...

	TObject (const TObject &object)
	TObject copy ctor. More...

virtual	~TObject ()
	TObject destructor. More...

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...

virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method. More...

virtual void	Copy (TObject &object) const
	Copy this to obj. More...

virtual void	Delete (Option_t *option="")
	Delete this object. More...

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: `gROOT->SetSelectedPad(gPad)`. More...

virtual void	Dump () const
	Dump contents of object on stdout. More...

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message. More...

virtual void	Execute (const char method, const char params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message. More...

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...

virtual const char *	GetIconName () const
	Returns mime type name of object. More...

virtual const char *	GetName () const
	Returns name of object. More...

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object. More...

virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...

virtual ULong_t	Hash () const
	Return hash value for this object. More...

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message. More...

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...

void	InvertBit (UInt_t f)

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout. More...

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...

void	operator delete (void *ptr)
	Operator delete. More...

void	operator delete[] (void *ptr)
	Operator delete []. More...

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...

virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself. More...

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename. More...

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message. More...

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

Protected Member Functions
Bool_t	LoadHDU (TString &filepath_filter)
	Load HDU from fits file satisfying the specified filter. More...

void	PrintColumnInfo (const Option_t *) const
	Print column information. More...

void	PrintFileMetadata (const Option_t *opt="") const
	Print HDU's parent file's metadata. More...

void	PrintFullTable (const Option_t *) const
	Print full table contents. More...

void	PrintHDUMetadata (const Option_t *opt="") const
	Print records. More...

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected). More...

void	MakeZombie ()

Static Protected Member Functions
static void	CleanFilePath (const char *filepath_with_filter, TString &dst)
	Clean path from possible filter and put the result in 'dst'. More...

Protected Attributes
TString	fBaseFilePath
	Path to HDU's file excluding filter. More...

union Cell *	fCells
	Table cells (when fType == kTableHDU). More...

struct Column *	fColumnsInfo
	Information about columns (when fType == kTableHDU) More...

TString	fExtensionName
	Extension Name. More...

TString	fFilePath
	Path to HDU's file including filter. More...

Int_t	fNColumns
	Number of columns (when fType == kTableHDU) More...

Int_t	fNRecords
	Number of records. More...

Int_t	fNRows
	Number of rows (when fType == kTableHDU) More...

Int_t	fNumber
	HDU number (1=PRIMARY) More...

TArrayD *	fPixels
	Image pixels (when fType == kImageHDU) More...

struct HDURecord *	fRecords
	HDU metadata records. More...

TArrayI *	fSizes
	Image sizes in each dimension (when fType == kImageHDU) More...

enum EHDUTypes	fType
	HDU type. More...

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Member Functions
void	_initialize_me ()
	Do some initializations. More...

void	_release_resources ()
	Release internal resources. More...

Additional Inherited Members
Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...

static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...

static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

#include <TFITS.h>

Inheritance diagram for TFITSHDU:

[legend]

Member Enumeration Documentation

◆ EColumnTypes

enum TFITSHDU::EColumnTypes

Enumerator
kString
kRealNumber
kRealArray
kRealVector

Definition at line 47 of file TFITS.h.

◆ EHDUTypes

enum TFITSHDU::EHDUTypes

Enumerator
kImageHDU
kTableHDU

Definition at line 42 of file TFITS.h.

Constructor & Destructor Documentation

◆ TFITSHDU() [1/3]

TFITSHDU::TFITSHDU ( const char * filepath_with_filter )

TFITSHDU constructor from file path with HDU selection filter.

Please refer to CFITSIO manual for more information about HDU selection filters.

Examples:

TFITSHDU("/path/to/myfile.fits"): just open the PRIMARY HDU
TFITSHDU("/path/to/myfile.fits[1]"): open HDU #1
TFITSHDU("/path/to/myfile.fits[PICS]"): open HDU called 'PICS'
TFITSHDU("/path/to/myfile.fits[ACQ][EXPOSURE > 5]"): open the (table) HDU called 'ACQ' and selects the rows that have column 'EXPOSURE' greater than 5.

Definition at line 118 of file TFITS.cxx.

◆ TFITSHDU() [2/3]

TFITSHDU::TFITSHDU	(	const char *	filepath,
		Int_t	extension_number
	)

TFITSHDU constructor from filepath and extension number.

Definition at line 134 of file TFITS.cxx.

◆ TFITSHDU() [3/3]

TFITSHDU::TFITSHDU	(	const char *	filepath,
		const char *	extension_name
	)

TFITSHDU constructor from filepath and extension name.

Definition at line 151 of file TFITS.cxx.

◆ ~TFITSHDU()

TFITSHDU::~TFITSHDU ( )

TFITSHDU destructor.

Definition at line 169 of file TFITS.cxx.

Member Function Documentation

◆ _initialize_me()

void TFITSHDU::_initialize_me ( )

private

Do some initializations.

Definition at line 222 of file TFITS.cxx.

◆ _release_resources()

void TFITSHDU::_release_resources ( )

private

Release internal resources.

Definition at line 177 of file TFITS.cxx.

◆ Change() [1/2]

Bool_t TFITSHDU::Change ( const char * filter )

Change to another HDU given by "filter".

The parameter "filter" will be appended to the FITS file's base path. For example: hduObject.Change("[EVENTS][TIME > 5]"); Please, see documentation of TFITSHDU(const char *filepath_with_filter) constructor for further information.

Definition at line 1414 of file TFITS.cxx.

◆ Change() [2/2]

Bool_t TFITSHDU::Change ( Int_t extension_number )

Change to another HDU given by extension_number.

Definition at line 1443 of file TFITS.cxx.

◆ CleanFilePath()

void TFITSHDU::CleanFilePath	(	const char *	filepath_with_filter,
		TString &	dst
	)

staticprotected

Clean path from possible filter and put the result in 'dst'.

Definition at line 94 of file TFITS.cxx.

◆ Draw()

void TFITSHDU::Draw ( Option_t * opt = "" )

virtual

If the HDU is an image, draw the first layer of the primary array To set a title to the canvas, pass it in "opt".

Reimplemented from TObject.

Definition at line 973 of file TFITS.cxx.

◆ GetArrayColumn()

TVectorD * TFITSHDU::GetArrayColumn ( UInt_t col )

Get a column from the image HDU when it's a 2D array.

Definition at line 1212 of file TFITS.cxx.

◆ GetArrayRow()

TVectorD * TFITSHDU::GetArrayRow ( UInt_t row )

Get a row from the image HDU when it's a 2D array.

Definition at line 1172 of file TFITS.cxx.

◆ GetColumnName()

const TString & TFITSHDU::GetColumnName ( Int_t colnum )

Get the name of a column given its index (column>=0).

In case of error the column name is "".

Definition at line 1565 of file TFITS.cxx.

◆ GetColumnNumber()

Int_t TFITSHDU::GetColumnNumber ( const char * colname )

Get column number given its name.

Definition at line 1252 of file TFITS.cxx.

◆ GetKeywordValue()

TString & TFITSHDU::GetKeywordValue ( const char * keyword )

Get the value of a given keyword. Return "" if not found.

Definition at line 638 of file TFITS.cxx.

◆ GetRecord()

struct TFITSHDU::HDURecord * TFITSHDU::GetRecord ( const char * keyword )

Get record by keyword.

Definition at line 625 of file TFITS.cxx.

◆ GetRecordNumber()

Int_t TFITSHDU::GetRecordNumber ( ) const

inline

Definition at line 111 of file TFITS.h.

◆ GetTabNColumns()

Int_t TFITSHDU::GetTabNColumns ( ) const

inline

Definition at line 124 of file TFITS.h.

◆ GetTabNRows()

Int_t TFITSHDU::GetTabNRows ( ) const

inline

Definition at line 125 of file TFITS.h.

◆ GetTabRealVectorCell() [1/2]

TVectorD * TFITSHDU::GetTabRealVectorCell	(	Int_t	rownum,
		const char *	colname
	)

Get a real vector embedded in a cell given by (row>=0, column name)

Definition at line 1544 of file TFITS.cxx.

◆ GetTabRealVectorCell() [2/2]

TVectorD * TFITSHDU::GetTabRealVectorCell	(	Int_t	rownum,
		Int_t	colnum
	)

Get a real array (with fixed or variable-length) embedded in a cell given by (row>=0, column>=0)

Definition at line 1513 of file TFITS.cxx.

◆ GetTabRealVectorCells() [1/2]

TObjArray * TFITSHDU::GetTabRealVectorCells ( const char * colname )

Get a collection of real vectors embedded in cells along a given column from a table HDU by name.

Definition at line 1493 of file TFITS.cxx.

◆ GetTabRealVectorCells() [2/2]

TObjArray * TFITSHDU::GetTabRealVectorCells ( Int_t colnum )

Get a collection of real vectors embedded in cells along a given column from a table HDU. colnum >= 0.

Definition at line 1454 of file TFITS.cxx.

◆ GetTabRealVectorColumn() [1/2]

TVectorD * TFITSHDU::GetTabRealVectorColumn ( const char * colname )

Get a real number-typed column from a table HDU given its name.

Definition at line 1368 of file TFITS.cxx.

◆ GetTabRealVectorColumn() [2/2]

TVectorD * TFITSHDU::GetTabRealVectorColumn ( Int_t colnum )

Get a real number-typed column from a table HDU given its column index (>=0).

Definition at line 1329 of file TFITS.cxx.

◆ GetTabStringColumn() [1/2]

TObjArray * TFITSHDU::GetTabStringColumn ( const char * colname )

Get a string-typed column from a table HDU given its name.

Definition at line 1296 of file TFITS.cxx.

◆ GetTabStringColumn() [2/2]

TObjArray * TFITSHDU::GetTabStringColumn ( Int_t colnum )

Get a string-typed column from a table HDU given its column index (>=0).

Definition at line 1266 of file TFITS.cxx.

◆ GetTabVarLengthVectorCell() [1/2]

TArrayD * TFITSHDU::GetTabVarLengthVectorCell	(	Int_t	rownum,
		const char *	colname
	)

Get the variable-length array contained in a cell given by (row>=0, column name)

Definition at line 1606 of file TFITS.cxx.

◆ GetTabVarLengthVectorCell() [2/2]

TArrayD * TFITSHDU::GetTabVarLengthVectorCell	(	Int_t	rownum,
		Int_t	colnum
	)

Get the variable-length array contained in a cell given by (row>=0, column name)

Definition at line 1583 of file TFITS.cxx.

◆ LoadHDU()

Bool_t TFITSHDU::LoadHDU ( TString & filepath_filter )

protected

Load HDU from fits file satisfying the specified filter.

Returns kTRUE if success. Otherwise kFALSE. If filter == "" then the primary array is selected

Definition at line 237 of file TFITS.cxx.

◆ Print()

void TFITSHDU::Print ( const Option_t * opt = "" ) const

Print metadata.

Currently supported options:

"" : print HDU record data
"F" : print FITS file's extension names, numbers and types
"F+": print FITS file's extension names and types and their record data
"T" : print column information when HDU is a table
"T+" : print full table (columns header and rows)

Definition at line 858 of file TFITS.cxx.

◆ PrintColumnInfo()

void TFITSHDU::PrintColumnInfo ( const Option_t * ) const

protected

Print column information.

Definition at line 766 of file TFITS.cxx.

◆ PrintFileMetadata()

void TFITSHDU::PrintFileMetadata ( const Option_t * opt = "" ) const

protected

Print HDU's parent file's metadata.

Definition at line 665 of file TFITS.cxx.

◆ PrintFullTable()

void TFITSHDU::PrintFullTable ( const Option_t * ) const

protected

Print full table contents.

Definition at line 794 of file TFITS.cxx.

◆ PrintHDUMetadata()

void TFITSHDU::PrintHDUMetadata ( const Option_t * opt = "" ) const

protected

Print records.

Definition at line 651 of file TFITS.cxx.

◆ ReadAsHistogram()

TH1 * TFITSHDU::ReadAsHistogram ( )

Read image HDU as a histogram.

Return 0 if conversion cannot be done. The returned object can be TH1D, TH2D or TH3D depending on data dimensionality. Please, check condition (returnedValue->IsA() == TH*DClass()) to determine the object class.

NOTE: do not confuse with image histogram! This function interprets the array as a histogram. It does not compute the histogram of pixel values of an image! Here "pixels" are interpreted as number of entries.

Definition at line 1093 of file TFITS.cxx.

◆ ReadAsImage()

TImage * TFITSHDU::ReadAsImage	(	Int_t	layer = `0`,
		TImagePalette *	pal = `0`
	)

Read image HDU as a displayable image.

Return 0 if conversion cannot be done. If the HDU seems to be a multilayer image, 'layer' parameter can be used to retrieve the specified layer (starting from 0)

Definition at line 880 of file TFITS.cxx.

◆ ReadAsMatrix()

TMatrixD * TFITSHDU::ReadAsMatrix	(	Int_t	layer = `0`,
		Option_t *	opt = `""`
	)

Read image HDU as a matrix.

Return 0 if conversion cannot be done If the HDU seems to be a multilayer image, 'layer' parameter can be used to retrieve the specified layer (starting from 0) in matrix form. Options (value of 'opt'): "S": stretch pixel values to a range from 0.0 to 1.0

Definition at line 1000 of file TFITS.cxx.

Member Data Documentation

◆ fBaseFilePath

TString TFITSHDU::fBaseFilePath

protected

Path to HDU's file excluding filter.

Definition at line 79 of file TFITS.h.

◆ fCells

union Cell* TFITSHDU::fCells

protected

Table cells (when fType == kTableHDU).

Cells are ordered in the following way: fCells[0..fNRows-1] -> cells of column 0 fCells[fNRows..2*fNRows-1] -> cells of column 1 fCells[2*fNRows..3*fNRows-1] -> cells of column 2 fCells[(fNColumns-1)*fNRows..fNColumns*fNRows-1] -> cells of column fNColumns-1

Definition at line 90 of file TFITS.h.

◆ fColumnsInfo

struct Column* TFITSHDU::fColumnsInfo

protected

Information about columns (when fType == kTableHDU)

Definition at line 87 of file TFITS.h.

◆ fExtensionName

TString TFITSHDU::fExtensionName

protected

Extension Name.

Definition at line 83 of file TFITS.h.

◆ fFilePath

TString TFITSHDU::fFilePath

protected

Path to HDU's file including filter.

Definition at line 78 of file TFITS.h.

◆ fNColumns

Int_t TFITSHDU::fNColumns

protected

Number of columns (when fType == kTableHDU)

Definition at line 88 of file TFITS.h.

◆ fNRecords

Int_t TFITSHDU::fNRecords

protected

Number of records.

Definition at line 81 of file TFITS.h.

◆ fNRows

Int_t TFITSHDU::fNRows

protected

Number of rows (when fType == kTableHDU)

Definition at line 89 of file TFITS.h.

◆ fNumber

Int_t TFITSHDU::fNumber

protected

HDU number (1=PRIMARY)

Definition at line 84 of file TFITS.h.

◆ fPixels

TArrayD* TFITSHDU::fPixels

protected

Image pixels (when fType == kImageHDU)

Definition at line 86 of file TFITS.h.

◆ fRecords

struct HDURecord* TFITSHDU::fRecords

protected

HDU metadata records.

Definition at line 80 of file TFITS.h.

◆ fSizes

TArrayI* TFITSHDU::fSizes

protected

Image sizes in each dimension (when fType == kImageHDU)

Definition at line 85 of file TFITS.h.

◆ fType

enum EHDUTypes TFITSHDU::fType

protected

HDU type.

Definition at line 82 of file TFITS.h.

Libraries for TFITSHDU:

[legend]

Classes

Public Types

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Member Enumeration Documentation

◆ EColumnTypes

◆ EHDUTypes

Constructor & Destructor Documentation

◆ TFITSHDU() [1/3]

◆ TFITSHDU() [2/3]

◆ TFITSHDU() [3/3]

◆ ~TFITSHDU()

Member Function Documentation

◆ _initialize_me()

◆ _release_resources()

◆ Change() [1/2]

◆ Change() [2/2]

◆ CleanFilePath()

◆ Draw()

◆ GetArrayColumn()

◆ GetArrayRow()

◆ GetColumnName()

◆ GetColumnNumber()

◆ GetKeywordValue()

◆ GetRecord()

◆ GetRecordNumber()

◆ GetTabNColumns()

◆ GetTabNRows()

◆ GetTabRealVectorCell() [1/2]

◆ GetTabRealVectorCell() [2/2]

◆ GetTabRealVectorCells() [1/2]

◆ GetTabRealVectorCells() [2/2]

◆ GetTabRealVectorColumn() [1/2]

◆ GetTabRealVectorColumn() [2/2]

◆ GetTabStringColumn() [1/2]

◆ GetTabStringColumn() [2/2]

◆ GetTabVarLengthVectorCell() [1/2]

◆ GetTabVarLengthVectorCell() [2/2]

◆ LoadHDU()

◆ Print()

◆ PrintColumnInfo()

◆ PrintFileMetadata()

◆ PrintFullTable()

◆ PrintHDUMetadata()

◆ ReadAsHistogram()

◆ ReadAsImage()

◆ ReadAsMatrix()

Member Data Documentation

◆ fBaseFilePath

◆ fCells

◆ fColumnsInfo

◆ fExtensionName

◆ fFilePath

◆ fNColumns

◆ fNRecords

◆ fNRows

◆ fNumber

◆ fPixels

◆ fRecords

◆ fSizes

◆ fType