Manages histogram axis attributes.

They are:

The number of divisions: TAttAxis::SetNdivisions.
The line axis' color: TAttAxis::SetAxisColor.
The axis labels' color: TAttAxis::SetLabelColor.
The axis labels' font: TAttAxis::SetLabelFont.
The axis labels' offset: TAttAxis::SetLabelOffset.
The axis labels' size: TAttAxis::SetLabelSize.
The tick marks's length: TAttAxis::SetTickLength or TAttAxis::SetTickSize .
The axis title's offset: TAttAxis::SetTitleOffset.
The axis title's size: TAttAxis::SetTitleSize.
The axis title's color: TAttAxis::SetTitleColor.
The axis title's font: TAttAxis::SetTitleFont.

Definition at line 18 of file TAttAxis.h.

Public Member Functions
	TAttAxis ()

virtual	~TAttAxis ()
	Destructor.

void	Copy (TAttAxis &attaxis) const
	Copy of the object.

virtual Color_t	GetAxisColor () const

virtual Color_t	GetLabelColor () const

virtual Style_t	GetLabelFont () const

virtual Float_t	GetLabelOffset () const

virtual Float_t	GetLabelSize () const

virtual Int_t	GetMaxDigits () const

virtual Int_t	GetNdivisions () const

virtual Float_t	GetTickLength () const

virtual Color_t	GetTitleColor () const

virtual Style_t	GetTitleFont () const

virtual Float_t	GetTitleOffset () const

virtual Float_t	GetTitleSize () const

virtual TClass *	IsA () const

virtual void	ResetAttAxis (Option_t *option="")
	Reset axis attributes.

virtual void	SaveAttributes (std::ostream &out, const char name, const char subname)
	Save axis attributes as C++ statement(s) on output stream out.

virtual void	SetAxisColor (Color_t color=1, Float_t alpha=1.)
	Set color of the line axis and tick marks.

virtual void	SetLabelColor (Color_t color=1, Float_t alpha=1.)
	Set color of labels.

virtual void	SetLabelFont (Style_t font=62)
	Set labels' font.

virtual void	SetLabelOffset (Float_t offset=0.005)
	Set distance between the axis and the labels.

virtual void	SetLabelSize (Float_t size=0.04)
	Set size of axis labels.

virtual void	SetMaxDigits (Int_t maxDigits=5)
	This function sets the maximum number of digits permitted for the axis labels above which the notation with 10^N is used.

virtual void	SetNdivisions (Int_t n1, Int_t n2, Int_t n3, Bool_t optim=kTRUE)
	Set the number of divisions for this axis using one `int` per division level.

virtual void	SetNdivisions (Int_t n=510, Bool_t optim=kTRUE)
	Set the number of divisions for this axis.

virtual void	SetTickLength (Float_t length=0.03)
	Set tick mark length.

virtual void	SetTickSize (Float_t size=0.03)

virtual void	SetTitleColor (Color_t color=1)
	Set color of axis title.

virtual void	SetTitleFont (Style_t font=62)
	Set the title font.

virtual void	SetTitleOffset (Float_t offset=1)
	Set distance between the axis and the axis title.

virtual void	SetTitleSize (Float_t size=0.04)
	Set size of axis title.

virtual void	Streamer (TBuffer &)
	Stream an object of class TAttAxis.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Protected Attributes
Color_t	fAxisColor
	Color of the line axis.

Color_t	fLabelColor
	Color of labels.

Style_t	fLabelFont
	Font for labels.

Float_t	fLabelOffset
	Offset of labels.

Float_t	fLabelSize
	Size of labels.

Int_t	fNdivisions
	Number of divisions(10000n3 + 100n2 + n1)

Float_t	fTickLength
	Length of tick marks.

Color_t	fTitleColor
	Color of axis title.

Style_t	fTitleFont
	Font for axis title.

Float_t	fTitleOffset
	Offset of axis title.

Float_t	fTitleSize
	Size of axis title.

#include <TAttAxis.h>

Inheritance diagram for TAttAxis:

[legend]

Constructor & Destructor Documentation

◆ TAttAxis()

TAttAxis::TAttAxis ( )

Definition at line 45 of file TAttAxis.cxx.

◆ ~TAttAxis()

TAttAxis::~TAttAxis ( )

virtual

Destructor.

Definition at line 54 of file TAttAxis.cxx.

Member Function Documentation

◆ Class()

static TClass * TAttAxis::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TAttAxis::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TAttAxis::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 65 of file TAttAxis.h.

◆ Copy()

void TAttAxis::Copy ( TAttAxis & attaxis ) const

Copy of the object.

Definition at line 61 of file TAttAxis.cxx.

◆ DeclFileName()

static const char * TAttAxis::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 65 of file TAttAxis.h.

◆ GetAxisColor()

virtual Color_t TAttAxis::GetAxisColor ( ) const

inlinevirtual

Definition at line 37 of file TAttAxis.h.

◆ GetLabelColor()

virtual Color_t TAttAxis::GetLabelColor ( ) const

inlinevirtual

Definition at line 38 of file TAttAxis.h.

◆ GetLabelFont()

virtual Style_t TAttAxis::GetLabelFont ( ) const

inlinevirtual

Definition at line 39 of file TAttAxis.h.

◆ GetLabelOffset()

virtual Float_t TAttAxis::GetLabelOffset ( ) const

inlinevirtual

Definition at line 40 of file TAttAxis.h.

◆ GetLabelSize()

virtual Float_t TAttAxis::GetLabelSize ( ) const

inlinevirtual

Definition at line 41 of file TAttAxis.h.

◆ GetMaxDigits()

virtual Int_t TAttAxis::GetMaxDigits ( ) const

inlinevirtual

Definition at line 42 of file TAttAxis.h.

◆ GetNdivisions()

virtual Int_t TAttAxis::GetNdivisions ( ) const

inlinevirtual

Definition at line 36 of file TAttAxis.h.

◆ GetTickLength()

virtual Float_t TAttAxis::GetTickLength ( ) const

inlinevirtual

Definition at line 45 of file TAttAxis.h.

◆ GetTitleColor()

virtual Color_t TAttAxis::GetTitleColor ( ) const

inlinevirtual

Definition at line 46 of file TAttAxis.h.

◆ GetTitleFont()

virtual Style_t TAttAxis::GetTitleFont ( ) const

inlinevirtual

Definition at line 47 of file TAttAxis.h.

◆ GetTitleOffset()

virtual Float_t TAttAxis::GetTitleOffset ( ) const

inlinevirtual

Definition at line 43 of file TAttAxis.h.

◆ GetTitleSize()

virtual Float_t TAttAxis::GetTitleSize ( ) const

inlinevirtual

Definition at line 44 of file TAttAxis.h.

◆ IsA()

virtual TClass * TAttAxis::IsA ( ) const

inlinevirtual

Returns: TClass describing current object

Reimplemented in TEveProjectionAxes, and TAxis.

Definition at line 65 of file TAttAxis.h.

◆ ResetAttAxis()

void TAttAxis::ResetAttAxis ( Option_t * option = "" )

virtual

Reset axis attributes.

Definition at line 79 of file TAttAxis.cxx.

◆ SaveAttributes()

void TAttAxis::SaveAttributes	(	std::ostream &	out,
		const char *	name,
		const char *	subname
	)

virtual

Save axis attributes as C++ statement(s) on output stream out.

Reimplemented in TAxis.

Definition at line 111 of file TAttAxis.cxx.

◆ SetAxisColor()

void TAttAxis::SetAxisColor	(	Color_t	color = `1`,
		Float_t	alpha = `1.`
	)

virtual

Set color of the line axis and tick marks.

Definition at line 160 of file TAttAxis.cxx.

◆ SetLabelColor()

void TAttAxis::SetLabelColor	(	Color_t	color = `1`,
		Float_t	alpha = `1.`
	)

virtual

Set color of labels.

Definition at line 170 of file TAttAxis.cxx.

◆ SetLabelFont()

void TAttAxis::SetLabelFont ( Style_t font = 62 )

virtual

Set labels' font.

Definition at line 180 of file TAttAxis.cxx.

◆ SetLabelOffset()

void TAttAxis::SetLabelOffset ( Float_t offset = 0.005 )

virtual

Set distance between the axis and the labels.

The distance is expressed in per cent of the pad width. A negative value allow to draw the label on the other side of the axis.

Definition at line 191 of file TAttAxis.cxx.

◆ SetLabelSize()

void TAttAxis::SetLabelSize ( Float_t size = 0.04 )

virtual

Set size of axis labels.

The size is expressed in per cent of the pad size, unless the font precision is 3 and in that case the size is expressed in pixels.

Definition at line 203 of file TAttAxis.cxx.

◆ SetMaxDigits()

void TAttAxis::SetMaxDigits ( Int_t maxDigits = 5 )

virtual

This function sets the maximum number of digits permitted for the axis labels above which the notation with 10^N is used.

For example, to accept 6 digits number like 900000 on the X axis of the histogram h call:

h->GetXaxis()->SetMaxDigits(6);

h

#define h(i)

Definition RSha256.hxx:106

The default value is 5.

The default value for all axis can be set with the static function TGaxis::SetMaxDigits.

Definition at line 268 of file TAttAxis.cxx.

◆ SetNdivisions() [1/2]

void TAttAxis::SetNdivisions	(	Int_t	n1,
		Int_t	n2,
		Int_t	n3,
		Bool_t	optim = `kTRUE`
	)

virtual

Set the number of divisions for this axis using one int per division level.

Definition at line 247 of file TAttAxis.cxx.

◆ SetNdivisions() [2/2]

void TAttAxis::SetNdivisions	(	Int_t	n = `510`,
		Bool_t	optim = `kTRUE`
	)

virtual

Set the number of divisions for this axis.

if optim = kTRUE (default), the number of divisions will be optimized around the specified value.
if optim = kFALSE, or n < 0, the axis will be forced to use exactly n divisions.
n = n1 + 100*n2 + 10000*n3

n
const Int_t n
Definition legend1.C:16

Where n1 is the number of primary divisions, n2 is the number of second order divisions and n3 is the number of third order divisions.

If the number of divisions is "optimized" (see above) n1, n2, n3 are maximum values.

Examples:

ndiv = 0: no tick marks.
ndiv = 2: 2 divisions, one tick mark in the middle of the axis.
ndiv = 510: 10 primary divisions, 5 secondary divisions.
ndiv = -10: exactly 10 primary divisions.

Definition at line 233 of file TAttAxis.cxx.

◆ SetTickLength()

void TAttAxis::SetTickLength ( Float_t length = 0.03 )

virtual

Set tick mark length.

The length is expressed in per cent of the pad width.

Definition at line 284 of file TAttAxis.cxx.

◆ SetTickSize()

virtual void TAttAxis::SetTickSize ( Float_t size = 0.03 )

inlinevirtual

Definition at line 59 of file TAttAxis.h.

◆ SetTitleColor()

void TAttAxis::SetTitleColor ( Color_t color = 1 )

virtual

Set color of axis title.

Definition at line 318 of file TAttAxis.cxx.

◆ SetTitleFont()

void TAttAxis::SetTitleFont ( Style_t font = 62 )

virtual

Set the title font.

Definition at line 327 of file TAttAxis.cxx.

◆ SetTitleOffset()

void TAttAxis::SetTitleOffset ( Float_t offset = 1 )

virtual

Set distance between the axis and the axis title.

Offset is a correction factor with respect to the "standard" value.

offset = 1 uses standard position that is computed in function of the label offset and size.
offset = 1.2 will add 20 per cent more to the standard offset.
offset = 0 automatic placement for the Y axis title (default).

Definition at line 298 of file TAttAxis.cxx.

◆ SetTitleSize()

void TAttAxis::SetTitleSize ( Float_t size = 0.04 )

virtual

Set size of axis title.

The size is expressed in per cent of the pad size, unless the font precision is 3 and in that case the size is expressed in pixels.

Definition at line 309 of file TAttAxis.cxx.

◆ Streamer()

void TAttAxis::Streamer ( TBuffer & R__b )

virtual

Stream an object of class TAttAxis.

Reimplemented in TEveProjectionAxes, and TAxis.

Definition at line 336 of file TAttAxis.cxx.

◆ StreamerNVirtual()

void TAttAxis::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 65 of file TAttAxis.h.

Member Data Documentation

◆ fAxisColor

Color_t TAttAxis::fAxisColor

protected

Color of the line axis.

Definition at line 21 of file TAttAxis.h.

◆ fLabelColor

Color_t TAttAxis::fLabelColor

protected

Color of labels.

Definition at line 22 of file TAttAxis.h.

◆ fLabelFont

Style_t TAttAxis::fLabelFont

protected

Font for labels.

Definition at line 23 of file TAttAxis.h.

◆ fLabelOffset

Float_t TAttAxis::fLabelOffset

protected

Offset of labels.

Definition at line 24 of file TAttAxis.h.

◆ fLabelSize

Float_t TAttAxis::fLabelSize

protected

Size of labels.

Definition at line 25 of file TAttAxis.h.

◆ fNdivisions

Int_t TAttAxis::fNdivisions

protected

Number of divisions(10000*n3 + 100*n2 + n1)

Definition at line 20 of file TAttAxis.h.

◆ fTickLength

Float_t TAttAxis::fTickLength

protected

Length of tick marks.

Definition at line 26 of file TAttAxis.h.

◆ fTitleColor

Color_t TAttAxis::fTitleColor

protected

Color of axis title.

Definition at line 29 of file TAttAxis.h.

◆ fTitleFont

Style_t TAttAxis::fTitleFont

protected

Font for axis title.

Definition at line 30 of file TAttAxis.h.

◆ fTitleOffset

Float_t TAttAxis::fTitleOffset

protected

Offset of axis title.

Definition at line 27 of file TAttAxis.h.

◆ fTitleSize

Float_t TAttAxis::fTitleSize

protected

Size of axis title.

Definition at line 28 of file TAttAxis.h.

core/base/inc/TAttAxis.h

core/base/src/TAttAxis.cxx

Public Member Functions

Static Public Member Functions

Protected Attributes

Constructor & Destructor Documentation

◆ TAttAxis()

◆ ~TAttAxis()

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ Copy()

◆ DeclFileName()

◆ GetAxisColor()

◆ GetLabelColor()

◆ GetLabelFont()

◆ GetLabelOffset()

◆ GetLabelSize()

◆ GetMaxDigits()

◆ GetNdivisions()

◆ GetTickLength()

◆ GetTitleColor()

◆ GetTitleFont()

◆ GetTitleOffset()

◆ GetTitleSize()

◆ IsA()

◆ ResetAttAxis()

◆ SaveAttributes()

◆ SetAxisColor()

◆ SetLabelColor()

◆ SetLabelFont()

◆ SetLabelOffset()

◆ SetLabelSize()

◆ SetMaxDigits()

◆ SetNdivisions() [1/2]

◆ SetNdivisions() [2/2]

◆ SetTickLength()

◆ SetTickSize()

◆ SetTitleColor()

◆ SetTitleFont()

◆ SetTitleOffset()

◆ SetTitleSize()

◆ Streamer()

◆ StreamerNVirtual()

Member Data Documentation

◆ fAxisColor

◆ fLabelColor

◆ fLabelFont

◆ fLabelOffset

◆ fLabelSize

◆ fNdivisions

◆ fTickLength

◆ fTitleColor

◆ fTitleFont

◆ fTitleOffset

◆ fTitleSize