TAnnotation Class Reference

An annotation is a TLatex which can be drawn in a 2D or 3D space.

Example:

{
   auto hsurf1 = new TH2F("hsurf1","3D text example ",30,-4,4,30,-20,20);
   float px, py;
   for (Int_t i = 0; i < 25000; i++) {
      gRandom->Rannor(px,py);
      hsurf1->Fill(px-1,5*py);
      hsurf1->Fill(2+0.5*px,2*py-10.,0.1);
   }
   hsurf1->Draw("SURF1");
   int binx,biny,binz;
   int bmax = hsurf1->GetMaximumBin(binx,biny,binz);
   double xm = hsurf1->GetXaxis()->GetBinCenter(binx);
   double ym = hsurf1->GetYaxis()->GetBinCenter(biny);
   double zm = hsurf1->GetMaximum();
   auto t = new TAnnotation(xm,ym,zm,Form("Maximum = %g",zm));
   t->SetTextFont(42);
   t->SetTextSize(0.03);
   t->Draw();
}

Another example:

 
void annotation3d()
{
   auto c = new TCanvas("c", "c", 600, 600);
   c->SetTheta(30);
   c->SetPhi(50);
   gStyle->SetOptStat(0);
   gStyle->SetHistTopMargin(0);
   gStyle->SetOptTitle(kFALSE);
 
   // Define and draw a surface
   auto f = new TF2("f", "[0]*cos(x)*cos(y)", -1, 1, -1, 1);
   f->SetParameter(0, 1);
   double s = 1. / f->Integral(-1, 1, -1, 1);
   f->SetParameter(0, s);
   f->SetNpx(50);
   f->SetNpy(50);
 
   f->GetXaxis()->SetTitle("x");
   f->GetXaxis()->SetTitleOffset(1.4);
   f->GetXaxis()->SetTitleSize(0.04);
   f->GetXaxis()->CenterTitle();
   f->GetXaxis()->SetNdivisions(505);
   f->GetXaxis()->SetTitleOffset(1.3);
   f->GetXaxis()->SetLabelSize(0.03);
   f->GetXaxis()->ChangeLabelByValue(-0.5, -1, -1, -1, kRed, -1, "X_{0}");
 
   f->GetYaxis()->SetTitle("y");
   f->GetYaxis()->CenterTitle();
   f->GetYaxis()->SetTitleOffset(1.4);
   f->GetYaxis()->SetTitleSize(0.04);
   f->GetYaxis()->SetTitleOffset(1.3);
   f->GetYaxis()->SetNdivisions(505);
   f->GetYaxis()->SetLabelSize(0.03);
 
   f->GetZaxis()->SetTitle("dP/dx");
   f->GetZaxis()->CenterTitle();
   f->GetZaxis()->SetTitleOffset(1.3);
   f->GetZaxis()->SetNdivisions(505);
   f->GetZaxis()->SetTitleSize(0.04);
   f->GetZaxis()->SetLabelSize(0.03);
 
   f->SetLineWidth(1);
   f->SetLineColorAlpha(kAzure - 2, 0.3);
 
   f->Draw("surf1 fb");
 
   // Lines for 3D annotation
   double x[11] = {-0.500, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.500};
   double y[11] = {-0.985, -0.8, -0.6, -0.4, -0.2, 0.0, 0.2, 0.4, 0.6, 0.8, 0.985};
   double z[11];
   for (int i = 0; i < 11; ++i)
      z[i] = s * cos(x[i]) * cos(y[i]);
   auto g2 = new TPolyLine3D(11, x, y, z);
 
   double xx[2] = {-0.5, -0.5};
   double yy[2] = {-0.985, -0.985};
   double zz[2] = {0.11, s * cos(-0.5) * cos(-0.985)};
   auto l2 = new TPolyLine3D(2, xx, yy, zz);
 
   g2->SetLineColor(kRed);
   g2->SetLineWidth(3);
   g2->Draw();
 
   l2->SetLineColor(kRed);
   l2->SetLineStyle(kDashed);
   l2->SetLineWidth(1);
   l2->Draw();
 
   // Draw text Annotations
   TAnnotation *txt = new TAnnotation(-0.45, -0.2, 0.3, "f(y,x_{0})");
   txt->SetTextFont(42);
   txt->SetTextColor(kRed);
   txt->Draw();
 
   TAnnotation *txt1 = new TAnnotation(0.5, 0.5, 0.3, "f(x,y)");
   txt1->SetTextColor(kBlue);
   txt1->SetTextFont(42);
   txt1->Draw();
}

Definition at line 18 of file TAnnotation.h.

Public Member Functions
	TAnnotation ()
	TAnnotation (Double_t x, Double_t y, Double_t z, const char *text)
	annotation default constructor.
	~TAnnotation () override
	annotation default destructor.
virtual TAnnotation *	DrawAnnotation (Double_t x, Double_t y, Double_t z, const char *text)
	Draw this annotation with new coordinates.
double	GetZ () const
TClass *	IsA () const override
void	ls (Option_t *option="") const override
	List this annotation with its attributes.
void	Paint (Option_t *option="") override
	Paint a TAnnotation.
void	PaintAnnotation (Double_t x, Double_t y, Double_t z, Double_t angle, Double_t size, const Char_t *text)
	Paint this annotation with new coordinates.
void	Print (Option_t *option="") const override
	Dump this annotation with its attributes.
void	SetZ (double z)
void	Streamer (TBuffer &) override
	Stream an object of class TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
Public Member Functions inherited from TLatex
	TLatex ()
	Default constructor.
	TLatex (const TLatex &text)
	Copy constructor.
	TLatex (Double_t x, Double_t y, const char *text)
	Normal constructor.
	~TLatex () override
	Destructor.
void	Copy (TObject &text) const override
	Copy this TLatex object to another TLatex.
TLatex *	DrawLatex (Double_t x, Double_t y, const char *text)
	Make a copy of this object with the new parameters And copy object attributes.
TLatex *	DrawLatexNDC (Double_t x, Double_t y, const char *text)
	Draw this TLatex with new coordinates in NDC.
void	GetBoundingBox (UInt_t &w, UInt_t &h, Bool_t angle=kFALSE) override
	Return text size in pixels.
Double_t	GetHeight () const
	Return height of current pad in pixels.
Double_t	GetXsize ()
	Return size of the formula along X in pad coordinates when the text precision is smaller than 3.
Double_t	GetYsize ()
	Return size of the formula along Y in pad coordinates when the text precision is smaller than 3.
TClass *	IsA () const override
void	Paint (Option_t *option="") override
	Paint.
virtual void	PaintLatex (Double_t x, Double_t y, Double_t angle, Double_t size, const char *text)
	Main drawing function.
void	SavePrimitive (std::ostream &out, Option_t *option="") override
	Save primitive as a C++ statement(s) on output stream out.
virtual void	SetIndiceSize (Double_t factorSize)
	Set relative size of subscripts and superscripts.
virtual void	SetLimitIndiceSize (Int_t limitFactorSize)
	Set limit for text resizing of subscripts and superscripts.
void	Streamer (TBuffer &) override
	Stream an object of class TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
Public Member Functions inherited from TText
	TText ()
	TText (const TText &text)
	Copy constructor.
	TText (Double_t x, Double_t y, const char *text)
	Text normal constructor.
	TText (Double_t x, Double_t y, const wchar_t *text)
	Text normal constructor.
	~TText () override
	Text default destructor.
void	Copy (TObject &text) const override
	Copy this text to text.
Int_t	DistancetoPrimitive (Int_t px, Int_t py) override
	Compute distance from point px,py to a string.
virtual TText *	DrawText (Double_t x, Double_t y, const char *text)
	Draw this text with new coordinates.
virtual TText *	DrawText (Double_t x, Double_t y, const wchar_t *text)
	Draw this text with new coordinates.
virtual TText *	DrawTextNDC (Double_t x, Double_t y, const char *text)
	Draw this text with new coordinates in NDC.
virtual TText *	DrawTextNDC (Double_t x, Double_t y, const wchar_t *text)
	Draw this text with new coordinates in NDC.
void	ExecuteEvent (Int_t event, Int_t px, Int_t py) override
	Execute action corresponding to one event.
Rectangle_t	GetBBox () override
	Return the "bounding Box" of the Box.
TPoint	GetBBoxCenter () override
	Return the point given by Alignment as 'center'.
virtual void	GetControlBox (Int_t x, Int_t y, Double_t theta, Int_t cBoxX[4], Int_t cBoxY[4])
	Return the text control box.
virtual void	GetTextAdvance (UInt_t &a, const char *text, const Bool_t kern=kTRUE) const
	Return text advance for string text if kern is true (default) kerning is taken into account.
virtual void	GetTextAscentDescent (UInt_t &a, UInt_t &d, const char *text) const
	Return text ascent and descent for string text.
virtual void	GetTextAscentDescent (UInt_t &a, UInt_t &d, const wchar_t *text) const
	Return text ascent and descent for string text.
virtual void	GetTextExtent (UInt_t &w, UInt_t &h, const char *text) const
	Return text extent for string text.
virtual void	GetTextExtent (UInt_t &w, UInt_t &h, const wchar_t *text) const
	Return text extent for string text.
const void *	GetWcsTitle (void) const
	Returns the text as UNICODE.
Double_t	GetX () const
Double_t	GetY () const
TClass *	IsA () const override
void	ls (Option_t *option="") const override
	List this text with its attributes.
TText &	operator= (const TText &src)
	Assignment operator.
void	Paint (Option_t *option="") override
	Paint this text with its current attributes.
virtual void	PaintControlBox (Int_t x, Int_t y, Double_t theta)
	Paint the text control box.
virtual void	PaintText (Double_t x, Double_t y, const char *text)
	Draw this text with new coordinates.
virtual void	PaintText (Double_t x, Double_t y, const wchar_t *text)
	Draw this text with new coordinates.
virtual void	PaintTextNDC (Double_t u, Double_t v, const char *text)
	Draw this text with new coordinates in NDC.
virtual void	PaintTextNDC (Double_t u, Double_t v, const wchar_t *text)
	Draw this text with new coordinates in NDC.
void	Print (Option_t *option="") const override
	Dump this text with its attributes.
void	SavePrimitive (std::ostream &out, Option_t *option="") override
	Save primitive as a C++ statement(s) on output stream out.
void	SetBBoxCenter (const TPoint &p) override
	Set the point given by Alignment as 'center'.
void	SetBBoxCenterX (const Int_t x) override
	Set X coordinate of the point given by Alignment as 'center'.
void	SetBBoxCenterY (const Int_t y) override
	Set Y coordinate of the point given by Alignment as 'center'.
void	SetBBoxX1 (const Int_t) override
	Set left hand side of BoundingBox to a value (resize in x direction on left)
void	SetBBoxX2 (const Int_t) override
	Set right hand side of BoundingBox to a value (resize in x direction on right)
void	SetBBoxY1 (const Int_t) override
	Set top of BoundingBox to a value (resize in y direction on top)
void	SetBBoxY2 (const Int_t) override
	Set bottom of BoundingBox to a value (resize in y direction on bottom)
virtual void	SetMbTitle (const wchar_t *title=L"")
	Change (i.e. set) the title of the TNamed.
virtual void	SetNDC (Bool_t isNDC=kTRUE)
	Set NDC mode on if isNDC = kTRUE, off otherwise.
virtual void	SetText (Double_t x, Double_t y, const char *text)
virtual void	SetText (Double_t x, Double_t y, const wchar_t *text)
virtual void	SetX (Double_t x)
virtual void	SetY (Double_t y)
void	Streamer (TBuffer &) override
	Stream an object of class TText.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
Public Member Functions inherited from TNamed
	TNamed ()
	TNamed (const char *name, const char *title)
	TNamed (const TNamed &named)
	TNamed copy ctor.
	TNamed (const TString &name, const TString &title)
virtual	~TNamed ()
	TNamed destructor.
void	Clear (Option_t *option="") override
	Set name and title to empty strings ("").
TObject *	Clone (const char *newname="") const override
	Make a clone of an object using the Streamer facility.
Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.
virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.
const char *	GetName () const override
	Returns name of object.
const char *	GetTitle () const override
	Returns title of object.
ULong_t	Hash () const override
	Return hash value for this object.
Bool_t	IsSortable () const override
TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.
virtual void	SetName (const char *name)
	Set the name of the TNamed.
virtual void	SetNameTitle (const char *name, const char *title)
	Set all the TNamed parameters (name and title).
virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
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
	Call this function within a function that you don't want to define as purely virtual, in order not to force all users deriving from that class to implement that maybe (on their side) unused function; but at the same time, emit a run-time warning if they try to call it, telling that it is not implemented in the derived class: action must thus be taken on the user side to override it.
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	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 with: gROOT->SetSelectedPad(c1).
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=nullptr)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr)
	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 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 UInt_t	GetUniqueID () const
	Return the unique object id.
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.
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)
Bool_t	IsDestructed () const
	IsDestructed.
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
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 (the base implementation is no-op).
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, void *vp)
	Only called by placement new when throwing an exception.
void	operator delete[] (void *ptr)
	Operator delete [].
void	operator delete[] (void *ptr, void *vp)
	Only called by placement new[] when throwing an exception.
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.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
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=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.
Public Member Functions inherited from TAttText
	TAttText ()
	AttText default constructor.
	TAttText (Int_t align, Float_t angle, Color_t color, Style_t font, Float_t tsize)
	AttText normal constructor.
virtual	~TAttText ()
	AttText destructor.
void	Copy (TAttText &atttext) const
	Copy this text attributes to a new TAttText.
virtual Short_t	GetTextAlign () const
	Return the text alignment.
virtual Float_t	GetTextAngle () const
	Return the text angle.
virtual Color_t	GetTextColor () const
	Return the text color.
virtual Font_t	GetTextFont () const
	Return the text font.
virtual Float_t	GetTextSize () const
	Return the text size.
virtual Float_t	GetTextSizePercent (Float_t size)
	Return the text in percent of the pad size.
virtual void	Modify ()
	Change current text attributes if necessary.
virtual void	ResetAttText (Option_t *toption="")
	Reset this text attributes to default values.
virtual void	SaveTextAttributes (std::ostream &out, const char *name, Int_t alidef=12, Float_t angdef=0, Int_t coldef=1, Int_t fondef=61, Float_t sizdef=1)
	Save text attributes as C++ statement(s) on output stream out.
virtual void	SetTextAlign (Short_t align=11)
	Set the text alignment.
virtual void	SetTextAngle (Float_t tangle=0)
	Set the text angle.
virtual void	SetTextAttributes ()
	Invoke the DialogCanvas Text attributes.
virtual void	SetTextColor (Color_t tcolor=1)
	Set the text color.
void	SetTextColor (TColorNumber lcolor)
virtual void	SetTextColorAlpha (Color_t tcolor, Float_t talpha)
	Set a transparent text color.
virtual void	SetTextFont (Font_t tfont=62)
	Set the text font.
virtual void	SetTextSize (Float_t tsize=1)
	Set the text size.
virtual void	SetTextSizePixels (Int_t npixels)
	Set the text size in pixel.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
Public Member Functions inherited from TAttBBox2D
virtual	~TAttBBox2D ()
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
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.
void	SetLineColor (TColorNumber lcolor)
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.
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 ()
Static Public Member Functions inherited from TLatex
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
Static Public Member Functions inherited from TText
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
Static Public Member Functions inherited from TNamed
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
Static Public Member Functions inherited from TObject
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
static Longptr_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.
Static Public Member Functions inherited from TAttText
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
Static Public Member Functions inherited from TAttBBox2D
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()
Static Public Member Functions inherited from TAttLine
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static const char *	DeclFileName ()

Protected Attributes
double	fZ {0}
	Z position of text.
Protected Attributes inherited from TLatex
const Char_t *	fError {nullptr}
	! error code
Double_t	fFactorPos
	! Relative position of subscripts and superscripts
Double_t	fFactorSize
	! Relative size of subscripts and superscripts
Bool_t	fItalic
	! Currently inside italic operator
Int_t	fLimitFactorSize
	lower bound for subscripts/superscripts size
Double_t	fOriginSize
	Font size of the starting font.
Bool_t	fShow
	! is true during the second pass (Painting)
std::vector< TLatexFormSize >	fTabSize
	! array of values for the different zones
Protected Attributes inherited from TText
void *	fWcsTitle {nullptr}
	!Used by TMathText
Double_t	fX {0}
	X position of text (left,center,etc..)
Double_t	fY {0}
	Y position of text (left,center,etc..)
Protected Attributes inherited from TNamed
TString	fName
TString	fTitle
Protected Attributes inherited from TAttText
Short_t	fTextAlign
	Text alignment.
Float_t	fTextAngle
	Text angle.
Color_t	fTextColor
	Text color.
Font_t	fTextFont
	Text font.
Float_t	fTextSize
	Text size.
Protected Attributes inherited from TAttLine
Color_t	fLineColor
	Line color.
Style_t	fLineStyle
	Line style.
Width_t	fLineWidth
	Line width.

Additional Inherited Members
Public Types inherited from TLatex
enum	{ kTextNDC = (1ULL << ( 14 )) }
Public Types inherited from TText
enum	{ kTextNDC = (1ULL << ( 14 )) }
Public Types inherited from TObject
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }
enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }
enum	EStatusBits {   kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) ,   kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }
Protected Member Functions inherited from TLatex
TLatexFormSize	Anal1 (const TextSpec_t &spec, const Char_t *t, Int_t length)
	Analyse function.
TLatexFormSize	Analyse (Double_t x, Double_t y, const TextSpec_t &spec, const Char_t *t, Int_t length)
	Analyse and paint the TLatex formula.
Int_t	CheckLatexSyntax (TString &text)
	Check if the Latex syntax is correct.
void	DrawCircle (Double_t x1, Double_t y1, Double_t r, const TextSpec_t &spec)
	Draw an arc of ellipse in a Latex formula (right or left parenthesis)
void	DrawLine (Double_t x1, Double_t y1, Double_t x2, Double_t y2, const TextSpec_t &spec)
	Draw a line in a Latex formula.
void	DrawParenthesis (Double_t x1, Double_t y1, Double_t r1, Double_t r2, Double_t phimin, Double_t phimax, const TextSpec_t &spec)
	Draw an arc of ellipse in a Latex formula (right or left parenthesis)
void	DrawPolyLine (Int_t npoints, Double_t *xx, Double_t *yy, const TextSpec_t &spec, Double_t scale_width=0.)
	Draw a poly line in a Latex formula Is scale_width parameter >=1, fill area will be drawn Otherwise line width will be scaled proportional to current font size If not specified - default line width will be used.
TLatexFormSize	FirstParse (Double_t angle, Double_t size, const Char_t *text)
	First parsing of the analyse sequence.
TLatex &	operator= (const TLatex &)
	assignment operator
Int_t	PaintLatex1 (Double_t x, Double_t y, Double_t angle, Double_t size, const char *text)
	Drawing function.
TLatexFormSize	Readfs ()
	Read fs in fTabSize.
void	Savefs (TLatexFormSize *fs)
	Save fs values in array fTabSize.
Protected Member Functions inherited from TNamed
void	SavePrimitiveNameTitle (std::ostream &out, const char *variable_name)
	Save object name and title into the output stream "out".
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 ()
Static Protected Member Functions inherited from TObject
static void	SavePrimitiveConstructor (std::ostream &out, TClass *cl, const char *variable_name, const char *constructor_agrs="", Bool_t empty_line=kTRUE)
	Save object constructor in the output stream "out".
static void	SavePrimitiveDraw (std::ostream &out, const char *variable_name, Option_t *option=nullptr)
	Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.
static TString	SavePrimitiveVector (std::ostream &out, const char *prefix, Int_t len, Double_t *arr, Bool_t empty_line=kFALSE)
	Save array in the output stream "out" as vector.

#include <TAnnotation.h>

Inheritance diagram for TAnnotation:

Constructor & Destructor Documentation

TAnnotation() [1/2]

TAnnotation::TAnnotation ( )

inline

Definition at line 25 of file TAnnotation.h.

TAnnotation() [2/2]

TAnnotation::TAnnotation	(	Double_t	x,
		Double_t	y,
		Double_t	z,
		const char *	text )

annotation default constructor.

Definition at line 60 of file TAnnotation.cxx.

~TAnnotation()

TAnnotation::~TAnnotation ( )

override

annotation default destructor.

Definition at line 73 of file TAnnotation.cxx.

Member Function Documentation

Class()

static TClass * TAnnotation::Class ( )

static

Returns

TClass describing this class

Class_Name()

static const char * TAnnotation::Class_Name ( )

static

Returns

Name of this class

Class_Version()

static constexpr Version_t TAnnotation::Class_Version ( )

inlinestaticconstexpr

Returns

Version of this class

Definition at line 37 of file TAnnotation.h.

DeclFileName()

static const char * TAnnotation::DeclFileName ( )

inlinestatic

Returns

Name of the file containing the class declaration

Definition at line 37 of file TAnnotation.h.

DrawAnnotation()

TAnnotation * TAnnotation::DrawAnnotation ( Double_t x, Double_t y, Double_t z, const char * text )

virtual

Draw this annotation with new coordinates.

Definition at line 90 of file TAnnotation.cxx.

GetZ()

double TAnnotation::GetZ ( ) const

inline

Definition at line 35 of file TAnnotation.h.

IsA()

TClass * TAnnotation::IsA ( ) const

inlineoverridevirtual

Returns

TClass describing current object

Reimplemented from TObject.

Definition at line 37 of file TAnnotation.h.

ls()

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

overridevirtual

List this annotation with its attributes.

Reimplemented from TObject.

Definition at line 80 of file TAnnotation.cxx.

Paint()

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

overridevirtual

Paint a TAnnotation.

Reimplemented from TObject.

Definition at line 119 of file TAnnotation.cxx.

PaintAnnotation()

void TAnnotation::PaintAnnotation	(	Double_t	x,
		Double_t	y,
		Double_t	z,
		Double_t	angle,
		Double_t	size,
		const Char_t *	text )

Paint this annotation with new coordinates.

Definition at line 104 of file TAnnotation.cxx.

Print()

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

overridevirtual

Dump this annotation with its attributes.

Reimplemented from TObject.

Definition at line 127 of file TAnnotation.cxx.

SetZ()

void TAnnotation::SetZ ( double z )

inline

Definition at line 34 of file TAnnotation.h.

Streamer()

void TAnnotation::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

StreamerNVirtual()

void TAnnotation::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 37 of file TAnnotation.h.

Member Data Documentation

fZ

double TAnnotation::fZ {0}

protected

Z position of text.

Definition at line 21 of file TAnnotation.h.

Libraries for TAnnotation:

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

• graf2d/gpad/inc/TAnnotation.h
• graf2d/gpad/src/TAnnotation.cxx