A simple line.

Definition at line 22 of file TLine.h.

Public Types
enum	{ kLineNDC = BIT(14) , kVertical = BIT(15) , kHorizontal = BIT(16) }

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
	TLine ()

	TLine (const TLine &line)
	Line copy constructor.

	TLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
	Line normal constructor.

virtual	~TLine ()=default

void	Copy (TObject &line) const
	Copy this line to line.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Compute distance from point px,py to a line.

virtual TLine *	DrawLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
	Draw this line with new coordinates.

virtual TLine *	DrawLineNDC (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
	Draw this line with new coordinates in NDC.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to one event.

virtual Rectangle_t	GetBBox ()
	Return the bounding Box of the Line.

virtual TPoint	GetBBoxCenter ()
	Return the center of the BoundingBox as TPoint in pixels.

Double_t	GetX1 () const

Double_t	GetX2 () const

Double_t	GetY1 () const

Double_t	GetY2 () const

Bool_t	IsHorizontal ()
	Check whether this line is to be drawn horizontally.

Bool_t	IsVertical ()
	Check whether this line is to be drawn vertically.

virtual void	ls (Option_t *option="") const
	List this line with its attributes.

TLine &	operator= (const TLine &src)
	Assignment operator.

virtual void	Paint (Option_t *option="")
	Paint this line with its current attributes.

virtual void	PaintLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2)
	Draw this line with new coordinates.

virtual void	PaintLineNDC (Double_t u1, Double_t v1, Double_t u2, Double_t v2)
	Draw this line with new coordinates in NDC.

virtual void	Print (Option_t *option="") const
	Dump this line with its attributes.

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

virtual void	SetBBoxCenter (const TPoint &p)
	Set center of the BoundingBox.

virtual void	SetBBoxCenterX (const Int_t x)
	Set X coordinate of the center of the BoundingBox.

virtual void	SetBBoxCenterY (const Int_t y)
	Set Y coordinate of the center of the BoundingBox.

virtual void	SetBBoxX1 (const Int_t x)
	Set left hand side of BoundingBox to a value (resize in x direction on left)

virtual void	SetBBoxX2 (const Int_t x)
	Set right hand side of BoundingBox to a value (resize in x direction on right)

virtual void	SetBBoxY1 (const Int_t y)
	Set top of BoundingBox to a value (resize in y direction on top)

virtual void	SetBBoxY2 (const Int_t y)
	Set bottom of BoundingBox to a value (resize in y direction on bottom)

void	SetHorizontal (Bool_t set=kTRUE)
	Force the line to be drawn horizontally.

virtual void	SetNDC (Bool_t isNDC=kTRUE)
	Set NDC mode on if isNDC = kTRUE, off otherwise.

void	SetVertical (Bool_t set=kTRUE)
	Force the line to be drawn vertically.

virtual void	SetX1 (Double_t x1)

virtual void	SetX2 (Double_t x2)

virtual void	SetY1 (Double_t y1)

virtual void	SetY2 (Double_t y2)

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

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

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

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

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

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.

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

virtual void	Clear (Option_t *="")

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

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

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

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

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

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

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

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

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.

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

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

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

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

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

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

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

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

virtual Option_t *	GetOption () const

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

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

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

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

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.

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

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

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

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

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).

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

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

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).

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

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

void	operator delete (void *ptr)
	Operator delete.

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

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.

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

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

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

void	ResetBit (UInt_t f)

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

void	SetBit (UInt_t f)

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

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

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

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

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.

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

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

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

Public Member Functions inherited from TAttLine
	TAttLine ()
	AttLine default constructor.

	TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)
	AttLine normal constructor.

virtual	~TAttLine ()
	AttLine destructor.

void	Copy (TAttLine &attline) const
	Copy this line attributes to a new TAttLine.

Int_t	DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
	Compute distance from point px,py to a line.

virtual Color_t	GetLineColor () const
	Return the line color.

virtual Style_t	GetLineStyle () const
	Return the line style.

virtual Width_t	GetLineWidth () const
	Return the line width.

virtual void	Modify ()
	Change current line attributes if necessary.

virtual void	ResetAttLine (Option_t *option="")
	Reset this line attributes to default values.

virtual void	SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
	Save line attributes as C++ statement(s) on output stream out.

virtual void	SetLineAttributes ()
	Invoke the DialogCanvas Line attributes.

virtual void	SetLineColor (Color_t lcolor)
	Set the line color.

virtual void	SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
	Set a transparent line color.

virtual void	SetLineStyle (Style_t lstyle)
	Set the line style.

virtual void	SetLineWidth (Width_t lwidth)
	Set the line width.

Public Member Functions inherited from TAttBBox2D
virtual	~TAttBBox2D ()

Protected Attributes
Double_t	fX1 {0}
	X of 1st point.

Double_t	fX2 {0}
	X of 2nd point.

Double_t	fY1 {0}
	Y of 1st point.

Double_t	fY2 {0}
	Y of 2nd point.

Protected Attributes inherited from TAttLine
Color_t	fLineColor
	Line color.

Style_t	fLineStyle
	Line style.

Width_t	fLineWidth
	Line width.

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

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

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

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

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

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).

void	MakeZombie ()

#include <TLine.h>

Inheritance diagram for TLine:

[legend]

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
kLineNDC	Use NDC coordinates.
kVertical	Line is vertical.
kHorizontal	Line is horizontal.

Definition at line 32 of file TLine.h.

Constructor & Destructor Documentation

◆ TLine() [1/3]

TLine::TLine ( )

inline

Definition at line 38 of file TLine.h.

◆ TLine() [2/3]

TLine::TLine	(	Double_t	x1,
		Double_t	y1,
		Double_t	x2,
		Double_t	y2
	)

Line normal constructor.

Definition at line 36 of file TLine.cxx.

◆ TLine() [3/3]

TLine::TLine ( const TLine & line )

Line copy constructor.

Definition at line 46 of file TLine.cxx.

◆ ~TLine()

virtual TLine::~TLine ( )

virtualdefault

Member Function Documentation

◆ Copy()

void TLine::Copy ( TObject & line ) const

virtual

Copy this line to line.

Reimplemented from TObject.

Definition at line 63 of file TLine.cxx.

◆ DistancetoPrimitive()

Int_t TLine::DistancetoPrimitive	(	Int_t	px,
		Int_t	py
	)

virtual

Compute distance from point px,py to a line.

Reimplemented from TObject.

Definition at line 76 of file TLine.cxx.

◆ DrawLine()

TLine * TLine::DrawLine	(	Double_t	x1,
		Double_t	y1,
		Double_t	x2,
		Double_t	y2
	)

virtual

Draw this line with new coordinates.

Definition at line 89 of file TLine.cxx.

◆ DrawLineNDC()

TLine * TLine::DrawLineNDC	(	Double_t	x1,
		Double_t	y1,
		Double_t	x2,
		Double_t	y2
	)

virtual

Draw this line with new coordinates in NDC.

Definition at line 101 of file TLine.cxx.

◆ ExecuteEvent()

void TLine::ExecuteEvent	(	Int_t	event,
		Int_t	px,
		Int_t	py
	)

virtual

Execute action corresponding to one event.

This member function is called when a line is clicked with the locator

If Left button clicked on one of the line end points, this point follows the cursor until button is released.

if Middle button clicked, the line is moved parallel to itself until the button is released.

Reimplemented from TObject.

Reimplemented in TASPaletteEditor::LimitLine.

Definition at line 118 of file TLine.cxx.

◆ GetBBox()

Rectangle_t TLine::GetBBox ( )

virtual

Return the bounding Box of the Line.

Implements TAttBBox2D.

Definition at line 527 of file TLine.cxx.

◆ GetBBoxCenter()

TPoint TLine::GetBBoxCenter ( )

virtual

Return the center of the BoundingBox as TPoint in pixels.

Implements TAttBBox2D.

Definition at line 551 of file TLine.cxx.

◆ GetX1()

Double_t TLine::GetX1 ( ) const

inline

Definition at line 50 of file TLine.h.

◆ GetX2()

Double_t TLine::GetX2 ( ) const

inline

Definition at line 51 of file TLine.h.

◆ GetY1()

Double_t TLine::GetY1 ( ) const

inline

Definition at line 52 of file TLine.h.

◆ GetY2()

Double_t TLine::GetY2 ( ) const

inline

Definition at line 53 of file TLine.h.

◆ IsHorizontal()

Bool_t TLine::IsHorizontal ( )

Check whether this line is to be drawn horizontally.

Definition at line 434 of file TLine.cxx.

◆ IsVertical()

Bool_t TLine::IsVertical ( )

Check whether this line is to be drawn vertically.

Definition at line 442 of file TLine.cxx.

◆ ls()

void TLine::ls ( Option_t * option = "" ) const

virtual

List this line with its attributes.

Reimplemented from TObject.

Definition at line 366 of file TLine.cxx.

◆ operator=()

TLine & TLine::operator= ( const TLine & src )

Assignment operator.

Definition at line 54 of file TLine.cxx.

◆ Paint()

void TLine::Paint ( Option_t * option = "" )

virtual

Paint this line with its current attributes.

Reimplemented from TObject.

Reimplemented in TGaxis, TASPaletteEditor::LimitLine, and TArrow.

Definition at line 375 of file TLine.cxx.

◆ PaintLine()

void TLine::PaintLine	(	Double_t	x1,
		Double_t	y1,
		Double_t	x2,
		Double_t	y2
	)

virtual

Draw this line with new coordinates.

Definition at line 384 of file TLine.cxx.

◆ PaintLineNDC()

void TLine::PaintLineNDC	(	Double_t	u1,
		Double_t	v1,
		Double_t	u2,
		Double_t	v2
	)

virtual

Draw this line with new coordinates in NDC.

Definition at line 393 of file TLine.cxx.

◆ Print()

void TLine::Print ( Option_t * option = "" ) const

virtual

Dump this line with its attributes.

Reimplemented from TObject.

Definition at line 402 of file TLine.cxx.

◆ SavePrimitive()

void TLine::SavePrimitive	(	std::ostream &	out,
		Option_t *	option = `""`
	)

virtual

Save primitive as a C++ statement(s) on output stream out.

Reimplemented from TObject.

Reimplemented in TArrow, and TGaxis.

Definition at line 414 of file TLine.cxx.

◆ SetBBoxCenter()

void TLine::SetBBoxCenter ( const TPoint & p )

virtual

Set center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 562 of file TLine.cxx.

◆ SetBBoxCenterX()

void TLine::SetBBoxCenterX ( const Int_t x )

virtual

Set X coordinate of the center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 587 of file TLine.cxx.

◆ SetBBoxCenterY()

void TLine::SetBBoxCenterY ( const Int_t y )

virtual

Set Y coordinate of the center of the BoundingBox.

Implements TAttBBox2D.

Definition at line 603 of file TLine.cxx.

◆ SetBBoxX1()

void TLine::SetBBoxX1 ( const Int_t x )

virtual

Set left hand side of BoundingBox to a value (resize in x direction on left)

Implements TAttBBox2D.

Definition at line 620 of file TLine.cxx.

◆ SetBBoxX2()

void TLine::SetBBoxX2 ( const Int_t x )

virtual

Set right hand side of BoundingBox to a value (resize in x direction on right)

Implements TAttBBox2D.

Definition at line 632 of file TLine.cxx.

◆ SetBBoxY1()

void TLine::SetBBoxY1 ( const Int_t y )

virtual

Set top of BoundingBox to a value (resize in y direction on top)

Implements TAttBBox2D.

Definition at line 643 of file TLine.cxx.

◆ SetBBoxY2()

void TLine::SetBBoxY2 ( const Int_t y )

virtual

Set bottom of BoundingBox to a value (resize in y direction on bottom)

Implements TAttBBox2D.

Definition at line 655 of file TLine.cxx.

◆ SetHorizontal()

void TLine::SetHorizontal ( Bool_t set = kTRUE )

Force the line to be drawn horizontally.

Makes fY2 equal to fY1. The line length is kept. TArrow and TGaxis also get this function by inheritance.

Definition at line 461 of file TLine.cxx.

◆ SetNDC()

void TLine::SetNDC ( Bool_t isNDC = kTRUE )

virtual

Set NDC mode on if isNDC = kTRUE, off otherwise.

Definition at line 450 of file TLine.cxx.

◆ SetVertical()

void TLine::SetVertical ( Bool_t set = kTRUE )

Force the line to be drawn vertically.

Makes fX2 equal to fX1. The line length is kept. TArrow and TGaxis also get this function by inheritance.

Definition at line 482 of file TLine.cxx.

◆ SetX1()

virtual void TLine::SetX1 ( Double_t x1 )

inlinevirtual

Definition at line 65 of file TLine.h.

◆ SetX2()

virtual void TLine::SetX2 ( Double_t x2 )

inlinevirtual

Definition at line 66 of file TLine.h.

◆ SetY1()

virtual void TLine::SetY1 ( Double_t y1 )

inlinevirtual

Definition at line 67 of file TLine.h.

◆ SetY2()

virtual void TLine::SetY2 ( Double_t y2 )

inlinevirtual

Definition at line 68 of file TLine.h.

Member Data Documentation

◆ fX1

Double_t TLine::fX1 {0}

protected

X of 1st point.

Definition at line 25 of file TLine.h.

◆ fX2

Double_t TLine::fX2 {0}

protected

X of 2nd point.

Definition at line 27 of file TLine.h.

◆ fY1

Double_t TLine::fY1 {0}

protected

Y of 1st point.

Definition at line 26 of file TLine.h.

◆ fY2

Double_t TLine::fY2 {0}

protected

Y of 2nd point.

Definition at line 28 of file TLine.h.

Libraries for TLine:

[legend]

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

graf2d/graf/inc/TLine.h
graf2d/graf/src/TLine.cxx

Public Types

Public Member Functions

Protected Attributes

Additional Inherited Members

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ TLine() [1/3]

◆ TLine() [2/3]

◆ TLine() [3/3]

◆ ~TLine()

Member Function Documentation

◆ Copy()

◆ DistancetoPrimitive()

◆ DrawLine()

◆ DrawLineNDC()

◆ ExecuteEvent()

◆ GetBBox()

◆ GetBBoxCenter()

◆ GetX1()

◆ GetX2()

◆ GetY1()

◆ GetY2()

◆ IsHorizontal()

◆ IsVertical()

◆ ls()

◆ operator=()

◆ Paint()

◆ PaintLine()

◆ PaintLineNDC()

◆ Print()

◆ SavePrimitive()

◆ SetBBoxCenter()

◆ SetBBoxCenterX()

◆ SetBBoxCenterY()

◆ SetBBoxX1()

◆ SetBBoxX2()

◆ SetBBoxY1()

◆ SetBBoxY2()

◆ SetHorizontal()

◆ SetNDC()

◆ SetVertical()

◆ SetX1()

◆ SetX2()

◆ SetY1()

◆ SetY2()

Member Data Documentation

◆ fX1

◆ fX2

◆ fY1

◆ fY2