A TScatter is able to draw four variables scatter plot on a single plot.

Python interface

The TScatter class in PyROOT can be used to create and visualize scatter plots dynamically. By integrating with NumPy, it allows efficient data management and customization.

Key Features:

Efficient Data Handling: Use NumPy arrays to manage and pass data points to the TScatter object.
Visual Customization: Adjust marker styles, colors, and titles to tailor the visualization.
Canvas Layout Control: Configure canvas margins to ensure that titles and axes are displayed without clipping.
Exporting Plots: Save scatter plots in various formats (e.g., .png, .pdf) for further use.

Example Usage:

Below is a Python example demonstrating the use of TScatter:

import ROOT
import numpy as np
 
# Create a TCanvas and configure margins
canvas = ROOT.TCanvas("c1", "Scatter Plot Example", 800, 600)
# Margins (left, right, bottom, top) to adjust the canvas layout and prevent clipping of titles or axis labels.
canvas.SetMargin(0.1, 0.13, 0.1, 0.1)
 
# Define the number of data points
n = 175
 
# Generate arrays for x, y coordinates and optional metadata
x = 100*np.random.rand(n)
y = 200*np.random.rand(n)
c = 300*np.random.rand(n)  # Optional: Color or other metadata
s = 400*np.random.rand(n)  # Optional: Size or other metadata
 
# Create a TScatter object with the data
scatter = ROOT.TScatter(n, x, y, c, s)
 
# Customize the plot's appearance
scatter.SetMarkerStyle(20) # Set marker style
scatter.SetMarkerColor(4)  # Set marker color
scatter.SetTitle("Scatter plot title;X title;Y title;Z title")  # Set plot and axis titles
scatter.GetZaxis().SetTitleSize(0.04)  # Modify the title size
scatter.GetZaxis().SetTitleOffset(1.0)  # Adjust the z-axis title offset
 
# Draw the scatter plot
scatter.Draw("AP")  # "A" for Axis, "P" for Points
 
# Save the scatter plot to a file
canvas.SaveAs("scatter_plot_example.png")

The two first variables are the x and y position of the markers, the third is mapped on the current color map and the fourth on the marker size.

The following example demonstrates how it works:

 
void gr006_scatter()
{
   auto canvas = new TCanvas();
   canvas->SetRightMargin(0.14);
   gStyle->SetPalette(kBird, 0, 0.6); // define a transparent palette
 
   const int n = 175;
   double x1[n];
   double y1[n];
   double c1[n];
   double s1[n];
   double x2[n];
   double y2[n];
   double c2[n];
   double s2[n];
 
   // Define four random data sets
   auto r  = new TRandom();
   for (int i=0; i<n; i++) {
      x1[i] = 100*r->Rndm(i);
      y1[i] = 200*r->Rndm(i);
      c1[i] = 300*r->Rndm(i);
      s1[i] = 400*r->Rndm(i);
      x2[i] = 100*r->Rndm(i);
      y2[i] = 200*r->Rndm(i);
      c2[i] = 100*r->Rndm(i);
      s2[i] = 200*r->Rndm(i);
   }
 
   auto scatter1 = new TScatter(n, x1, y1, c1, s1);
   scatter1->SetMarkerStyle(20);
   scatter1->SetTitle("Scatter plot title;X title;Y title;Z title");
   scatter1->GetXaxis()->SetRangeUser(20.,90.);
   scatter1->GetYaxis()->SetRangeUser(55.,90.);
   scatter1->GetZaxis()->SetRangeUser(10.,200.);
   // an alternative way to zoom the Z-axis:
   // scatter->GetHistogram()->SetMinimum(10);
   // scatter->GetHistogram()->SetMaximum(200);
   scatter1->Draw("A");
 
   auto scatter2 = new TScatter(n, x2, y2, c2, s2);
   scatter2->SetMarkerStyle(21);
   scatter2->Draw();
}

TScatter's plotting options

TScatter can be drawn with the following options:

Option	Description
"A"	Produce a new plot with Axis around the graph
"SKIPCOL"	Do not draw the points outside the color range. By default, such points' color is clipped to the minimum or maximum color, depending on whether the color is smaller or bigger than the color range

Definition at line 32 of file TScatter.h.

Public Types
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 )) }

Public Member Functions
	TScatter ()
	TScatter default constructor.

	TScatter (Int_t n)
	TScatter normal constructor.

	TScatter (Int_t n, const Double_t x, const Double_t y, const Double_t col=nullptr, const Double_t size=nullptr)
	TScatter normal constructor.

	~TScatter () override
	TScatter default 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.

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.

void	Copy (TAttFill &attfill) const
	Copy this fill attributes to a new TAttFill.

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

void	Copy (TAttMarker &attmarker) const
	Copy this marker attributes to a new TAttMarker.

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

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

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.

Int_t	DistancetoPrimitive (Int_t px, Int_t py) override
	Compute distance from point px,py to a scatter plot.

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.

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

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

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

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.

Double_t *	GetColor () const
	Get the array of colors.

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

virtual Color_t	GetFillColor () const
	Return the fill area color.

virtual Style_t	GetFillStyle () const
	Return the fill area style.

TGraph *	GetGraph () const
	Get the graph holding X and Y positions.

TH2F *	GetHistogram () const
	Get the graph histogram used for drawing axis.

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

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.

Double_t	GetMargin () const
	Set the margin around the plot in %.

virtual Color_t	GetMarkerColor () const
	Return the marker color.

virtual Size_t	GetMarkerSize () const
	Return the marker size.

virtual Style_t	GetMarkerStyle () const
	Return the marker style.

Double_t	GetMaxMarkerSize () const
	Get the largest marker size used to paint the markers.

Double_t	GetMinMarkerSize () const
	Get the smallest marker size used to paint the markers.

const char *	GetName () const override
	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

Double_t *	GetSize () const
	Get the array of marker sizes.

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

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

TAxis *	GetXaxis () const
	Get the scatter's x axis.

TAxis *	GetYaxis () const
	Get the scatter's y axis.

TAxis *	GetZaxis () const
	Get the scatter's z axis.

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

ULong_t	Hash () const override
	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)

TClass *	IsA () const override

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

Bool_t	IsSortable () const override

virtual Bool_t	IsTransparent () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

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

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 void	Modify ()
	Change current fill area attributes if necessary.

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

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

virtual void	ModifyOn (TVirtualPad &pad)
	Change current fill area attributes on speicifed pad.

virtual void	ModifyOn (TVirtualPad &pad)
	Change current line attributes on specified pad.

virtual void	ModifyOn (TVirtualPad &pad)
	Change current marker attributes if necessary on specified pad.

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 *, size_t)
	Operator delete for sized deallocation.

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 *, size_t)
	Operator delete [] for sized deallocation.

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)

void	Paint (Option_t *chopt="") override
	Paint this scatter plot with its current attributes.

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

void	Print (Option_t *chopt="") const override
	Print graph and errors values.

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.

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

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

virtual void	ResetAttMarker (Option_t *toption="")
	Reset this marker attributes to the default values.

void	ResetBit (UInt_t f)

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

virtual void	SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
	Save fill attributes as C++ statement(s) on output stream out.

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

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

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	SetFillAttributes ()
	Invoke the DialogCanvas Fill attributes.

virtual void	SetFillColor (Color_t fcolor)
	Set the fill area color.

void	SetFillColor (TColorNumber)
	Set a fill color.

virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)
	Set a transparent fill color.

virtual void	SetFillStyle (Style_t fstyle)
	Set the fill area style.

void	SetHistogram (TH2F *h)

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	SetMargin (Double_t)
	Set the margin around the plot in %.

virtual void	SetMarkerAttributes ()
	Invoke the DialogCanvas Marker attributes.

virtual void	SetMarkerColor (Color_t mcolor=1)
	Set the marker color.

void	SetMarkerColor (TColorNumber lcolor)

virtual void	SetMarkerColorAlpha (Color_t mcolor, Float_t malpha)
	Set a transparent marker color.

virtual void	SetMarkerSize (Size_t msize=1)
	Set the marker size.

virtual void	SetMarkerStyle (Style_t mstyle=1)
	Set the marker style.

void	SetMaxMarkerSize (Double_t max)
	Set the largest marker size used to paint the markers.

void	SetMinMarkerSize (Double_t min)
	Set the smallest marker size used to paint the markers.

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

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

void	Streamer (TBuffer &) override
	Stream an object of class TObject.

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.

Static Public Member Functions
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 Width_t	GetMarkerLineWidth (Style_t style)
	Internal helper function that returns the line width of the given marker style (0 = filled marker)

static Style_t	GetMarkerStyleBase (Style_t style)
	Internal helper function that returns the corresponding marker style with line width 1 for the given style.

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
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

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

void	MakeZombie ()

void	SavePrimitiveNameTitle (std::ostream &out, const char *variable_name)
	Save object name and title into the output stream "out".

Static Protected Member Functions
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, Int_t flag=0)
	Save array in the output stream "out" as vector.

Protected Attributes
Double_t *	fColor {nullptr}
	[fNpoints] array of colors

Color_t	fFillColor
	Fill area color.

Style_t	fFillStyle
	Fill area style.

TGraph *	fGraph {nullptr}
	Pointer to graph holding X and Y positions.

TH2F *	fHistogram {nullptr}
	Pointer to histogram used for drawing axis.

Color_t	fLineColor
	Line color.

Style_t	fLineStyle
	Line style.

Width_t	fLineWidth
	Line width.

Double_t	fMargin {.1}
	Margin around the plot in %.

Color_t	fMarkerColor
	Marker color.

Size_t	fMarkerSize
	Marker size.

Style_t	fMarkerStyle
	Marker style.

Double_t	fMaxMarkerSize {5.}
	Largest marker size used to paint the markers.

Int_t	fMaxSize {-1}
	!Current dimension of arrays fX and fY

Double_t	fMinMarkerSize {1.}
	Smallest marker size used to paint the markers.

TString	fName

Int_t	fNpoints {-1}
	Number of points <= fMaxSize.

Double_t *	fSize {nullptr}
	[fNpoints] array of marker sizes

TString	fTitle

Static Private Member Functions
static void	AddToTObjectTable (TObject *)
	Private helper function which will dispatch to TObjectTable::AddObj.

Private Attributes
UInt_t	fBits
	bit field status word

UInt_t	fUniqueID
	object unique identifier

Static Private Attributes
static Longptr_t	fgDtorOnly = 0
	object for which to call dtor only (i.e. no delete)

static Bool_t	fgObjectStat = kTRUE
	if true keep track of objects in TObjectTable

#include <TScatter.h>

Inheritance diagram for TScatter:

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

inherited

Enumerator
kIsOnHeap	object is on heap
kNotDeleted	object has not been deleted
kZombie	object ctor failed
kInconsistent	class overload Hash but does call RecursiveRemove in destructor
kBitMask

Definition at line 89 of file TObject.h.

◆ anonymous enum

anonymous enum

inherited

Enumerator
kSingleKey	write collection with single key
kOverwrite	overwrite existing object with same name
kWriteDelete	write object, then delete previous key with same name

Definition at line 99 of file TObject.h.

◆ anonymous enum

anonymous enum

protectedinherited

Enumerator

kOnlyPrepStep

Used to request that the class specific implementation of TObject::Write just prepare the objects to be ready to be written but do not actually write them into the TBuffer.

This is just for example by TBufferMerger to request that the TTree inside the file calls TTree::FlushBaskets (outside of the merging lock) and TBufferMerger will later ask for the write (inside the merging lock). To take advantage of this feature the class needs to overload TObject::Write and use this enum value accordingly. (See TTree::Write and TObject::Write) Do not use, this feature will be migrate to the Merge function (See TClass and TTree::Merge)

Definition at line 106 of file TObject.h.

◆ EDeprecatedStatusBits

enum TObject::EDeprecatedStatusBits

inherited

Enumerator
kObjInCanvas	for backward compatibility only, use kMustCleanup

Definition at line 84 of file TObject.h.

◆ EStatusBits

enum TObject::EStatusBits

inherited

Enumerator
kCanDelete	if object in a list can be deleted
kMustCleanup	if object destructor must call RecursiveRemove()
kIsReferenced	if object is referenced by a TRef or TRefArray
kHasUUID	if object has a TUUID (its fUniqueID=UUIDNumber)
kCannotPick	if object in a pad cannot be picked
kNoContextMenu	if object does not want context menu
kInvalidObject	if object ctor succeeded but object should not be used

Definition at line 70 of file TObject.h.

Constructor & Destructor Documentation

◆ TScatter() [1/3]

TScatter::TScatter ( )

TScatter default constructor.

Definition at line 48 of file TScatter.cxx.

◆ TScatter() [2/3]

TScatter::TScatter ( Int_t n )

TScatter normal constructor.

the arrays are preset to zero

Definition at line 57 of file TScatter.cxx.

◆ TScatter() [3/3]

TScatter::TScatter	(	Int_t	n,
		const Double_t *	x,
		const Double_t *	y,
		const Double_t *	col = nullptr,
		const Double_t *	size = nullptr )

TScatter normal constructor.

if ex or ey are null, the corresponding arrays are preset to zero

Definition at line 79 of file TScatter.cxx.

◆ ~TScatter()

TScatter::~TScatter ( )

override

TScatter default destructor.

Definition at line 104 of file TScatter.cxx.

Member Function Documentation

◆ AbstractMethod()

void TObject::AbstractMethod ( const char * method ) const

inherited

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.

In other word, this method acts as a "runtime purely virtual" warning instead of a "compiler purely virtual" error.

Warning: This interface is a legacy function that is no longer recommended to be used by new development code.

Note: The name "AbstractMethod" does not imply that it's an abstract method in the strict C++ sense.

Definition at line 1149 of file TObject.cxx.

◆ AddToTObjectTable()

void TObject::AddToTObjectTable ( TObject * op )

staticprivateinherited

Private helper function which will dispatch to TObjectTable::AddObj.

Included here to avoid circular dependency between header files.

Definition at line 195 of file TObject.cxx.

◆ AppendPad()

void TObject::AppendPad ( Option_t * option = "" )

virtualinherited

Append graphics object to current pad.

In case no current pad is set yet, create a default canvas with the name "c1".

Definition at line 204 of file TObject.cxx.

◆ Browse()

void TObject::Browse ( TBrowser * b )

virtualinherited

Browse object. May be overridden for another default action.

Reimplemented in TASImage, TRecorder, TEfficiency, TGraph2D, TChain, TTree, TDirectory, TFolder, TMacro, TRemoteObject, TROOT, TStyle, TSystemDirectory, TSystemFile, TTask, TCollection, TPair, TBrowserObject, TBaseClass, TClass, TGeoManager, TGeoNode, TGeoVolume, TGeoOverlap, TGeoTrack, TCanvas, TPad, TAxis3D, TGeometry, TNode, TRootIconList, THbookBranch, THbookFile, THbookKey, TF1, TGraph, TH1, THnBase, ROOT::Internal::THnBaseBrowsable, THStack, TMultiDimFit, TMultiGraph, TPrincipal, TDirectoryFile, TKey, TKeyMapFile, TMapFile, TSPlot, TDatabasePDG, TGenerator, TParticleClassPDG, TApplicationRemote, RooPlot, TBranch, TVirtualBranchBrowsable, TCollectionPropertyBrowsable, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, TLeaf, TNtuple, TNtupleD, TTreePerfStats, and ROOT::Experimental::XRooFit::xRooNode.

Definition at line 218 of file TObject.cxx.

◆ CheckedHash()

ULong_t TObject::CheckedHash ( )

inlineinherited

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

The intent is for this routine to be called instead of directly calling the function Hash during "insert" operations. See TObject::HasInconsistenTObjectHash();

(*) The setup is consistent when all classes in the class hierarchy that overload TObject::Hash do call ROOT::CallRecursiveRemoveIfNeeded in their destructor. i.e. it is safe to call the Hash virtual function during the RecursiveRemove operation.

Definition at line 332 of file TObject.h.

◆ Class()

static TClass * TScatter::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TScatter::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TScatter::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 73 of file TScatter.h.

◆ ClassName()

const char * TObject::ClassName ( ) const

virtualinherited

Returns name of class to which the object belongs.

Definition at line 227 of file TObject.cxx.

◆ Clear()

void TNamed::Clear ( Option_t * option = "" )

overridevirtualinherited

Set name and title to empty strings ("").

Reimplemented from TObject.

Reimplemented in TStreamerInfo, TVirtualStreamerInfo, TProcessID, TTask, TPrincipal, and TVirtualFitter.

Definition at line 63 of file TNamed.cxx.

◆ Clone()

TObject * TNamed::Clone ( const char * newname = "" ) const

overridevirtualinherited

Make a clone of an object using the Streamer facility.

If newname is specified, this will be the name of the new object.

Reimplemented from TObject.

Reimplemented in TStreamerInfo, and TTreeIndex.

Definition at line 73 of file TNamed.cxx.

◆ Compare()

Int_t TNamed::Compare ( const TObject * obj ) const

overridevirtualinherited

Compare two TNamed objects.

Returns 0 when equal, -1 when this is smaller and +1 when bigger (like strcmp).

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 84 of file TNamed.cxx.

◆ Copy() [1/4]

void TAttFill::Copy ( TAttFill & attfill ) const

inherited

Copy this fill attributes to a new TAttFill.

Definition at line 203 of file TAttFill.cxx.

◆ Copy() [2/4]

void TAttLine::Copy ( TAttLine & attline ) const

inherited

Copy this line attributes to a new TAttLine.

Definition at line 176 of file TAttLine.cxx.

◆ Copy() [3/4]

void TAttMarker::Copy ( TAttMarker & attmarker ) const

inherited

Copy this marker attributes to a new TAttMarker.

Definition at line 243 of file TAttMarker.cxx.

◆ Copy() [4/4]

void TNamed::Copy ( TObject & named ) const

overridevirtualinherited

Copy this to obj.

Reimplemented from TObject.

Reimplemented in TSystemDirectory, TSystemFile, TProfile, TProfile2D, TProfile3D, TPieSlice, TStyle, TText, and TXTRU.

Definition at line 93 of file TNamed.cxx.

◆ DeclFileName()

static const char * TScatter::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 73 of file TScatter.h.

◆ Delete()

void TObject::Delete ( Option_t * option = "" )

virtualinherited

Delete this object.

Typically called as a command via the interpreter. Normally use "delete" operator when object has been allocated on the heap.

Reimplemented in TDirectory, TDirectoryFile, TFile, TSystemDirectory, TSystemFile, TTreeViewer, TGItemContext, TCanvas, TGFrame, TGTextEdit, TAxis, RooLinkedList, TExMap, TObjectTable, TProtoClass, TKeySQL, TKeyXML, TQCommand, TBtree, TClonesArray, THashList, THashTable, TList, TMap, TObjArray, TOrdCollection, TRefArray, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TViewPubDataMembers, TViewPubFunctions, TThread, TKey, TMVA::Results, TTree, and TCollection.

Definition at line 268 of file TObject.cxx.

◆ DistancetoLine()

Int_t TAttLine::DistancetoLine	(	Int_t	px,
		Int_t	py,
		Double_t	xp1,
		Double_t	yp1,
		Double_t	xp2,
		Double_t	yp2 )

inherited

Compute distance from point px,py to a line.

Compute the closest distance of approach from point px,py to this line. The distance is computed in pixels units.

Algorithm:

  A(x1,y1)         P                             B(x2,y2)
  -----------------+------------------------------
                   |
                   |
                   |
                   |
                  M(x,y)
 
Let us call  a = distance AM     A=a**2
             b = distance BM     B=b**2
             c = distance AB     C=c**2
             d = distance PM     D=d**2
             u = distance AP     U=u**2
             v = distance BP     V=v**2     c = u + v
 
D = A - U
D = B - V  = B -(c-u)**2
   ==> u = (A -B +C)/2c

Definition at line 210 of file TAttLine.cxx.

◆ DistancetoPrimitive()

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

overridevirtual

Compute distance from point px,py to a scatter plot.

Compute the closest distance of approach from point px,py to this scatter plot. The distance is computed in pixels units.

Reimplemented from TObject.

Definition at line 119 of file TScatter.cxx.

◆ DoError()

void TObject::DoError	(	int	level,
		const char *	location,
		const char *	fmt,
		va_list	va ) const

protectedvirtualinherited

Interface to ErrorHandler (protected).

Reimplemented in TTreeViewer, and TThread.

Definition at line 1059 of file TObject.cxx.

◆ Draw()

void TObject::Draw ( Option_t * option = "" )

virtualinherited

Default Draw method for all objects.

Reimplemented in TClassTree, ROOT::RGeoPainter, TGListTree, TGPicture, TMultiDimFit, TRatioPlot, TGraph, TGraphTime, THStack, TMultiGraph, TChain, TTree, TFITSHDU, TEfficiency, RooStats::HypoTestInverterPlot, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoPoint, ROOT::Experimental::XRooFit::xRooNLLVar::xRooHypoSpace, ROOT::Experimental::XRooFit::xRooNode, TGeoParallelWorld, TDirectory, TCollection, TBrowser, TClass, TGeoBatemanSol, TGeoNode, TGeoPhysicalNode, TGeoPolygon, TGeoShape, TGeoVolume, TGeoOverlap, TGeoPainter, TGeoTrack, TGeoVGShape, TASImage, TButton, TCanvas, TColorWheel, TPad, TArrow, TBox, TDiamond, TEllipse, TFrame, TLegend, TMarker, TPave, TPaveLabel, TPavesText, TPaveText, TPolyLine, TWbox, TGraphStruct, TEveGeoNode, TEveGeoTopNode, TGeometry, THelix, TNode, TNodeDiv, TPolyLine3D, TPolyMarker3D, TStructViewer, TStructViewerGUI, TF1, TF2, TF3, TH1, TPolyMarker, TSpline, TFile, TMatrixTBase< Element >, TMatrixTBase< AReal >, TMatrixTBase< Double_t >, TVectorT< Element >, TVectorT< Double_t >, TMultiLayerPerceptron, TGenerator, RooAbsData, TTreePerfStats, TParallelCoordVar, TGItemContext, TVirtualPad, TPie, TGraph2D, TGraphPolar, TGraphPolargram, TParallelCoord, TParallelCoordRange, TSpider, RooPlot, and RooStats::SamplingDistPlot.

Definition at line 293 of file TObject.cxx.

◆ DrawClass()

void TObject::DrawClass ( ) const

virtualinherited

Draw class inheritance tree of the class to which this object belongs.

If a class B inherits from a class A, description of B is drawn on the right side of description of A. Member functions overridden by B are shown in class A with a blue line crossing-out the corresponding member function. The following picture is the class inheritance tree of class TPaveLabel:

Reimplemented in TSystemDirectory, TSystemFile, and TGFrame.

Definition at line 308 of file TObject.cxx.

◆ DrawClone()

TObject * TObject::DrawClone ( Option_t * option = "" ) const

virtualinherited

Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1).

If pad was not selected - gPad will be used.

Note: For histograms, use the more specialised TH1::DrawCopy().

Reimplemented in TSystemDirectory, TSystemFile, TGFrame, TAxis, and TCanvas.

Definition at line 319 of file TObject.cxx.

◆ Dump()

void TObject::Dump ( ) const

virtualinherited

Dump contents of object on stdout.

Using the information in the object dictionary (class TClass) each data member is interpreted. If a data member is a pointer, the pointer value is printed

The following output is the Dump of a TArrow object:

fAngle                   0           Arrow opening angle (degrees)
fArrowSize               0.2         Arrow Size
fOption.*fData
fX1                      0.1         X of 1st point
fY1                      0.15        Y of 1st point
fX2                      0.67        X of 2nd point
fY2                      0.83        Y of 2nd point
fUniqueID                0           object unique identifier
fBits                    50331648    bit field status word
fLineColor               1           line color
fLineStyle               1           line style
fLineWidth               1           line width
fFillColor               19          fill area color
fFillStyle               1001        fill area style

Reimplemented in TSystemFile, TCollection, TClass, TGFrame, and TGPack.

Definition at line 367 of file TObject.cxx.

◆ Error()

void TObject::Error	(	const char *	location,
		const char *	fmt,
			... ) const

virtualinherited

Issue error message.

Use "location" to specify the method where the error occurred. Accepts standard printf formatting arguments.

Reimplemented in TFitResult.

Definition at line 1098 of file TObject.cxx.

◆ Execute() [1/2]

void TObject::Execute	(	const char *	method,
		const char *	params,
		Int_t *	error = nullptr )

virtualinherited

Execute method on this object with the given parameter string, e.g.

"3.14,1,\"text\"".

Reimplemented in TMethodCall, TCling, TInterpreter, ROOT::R::TRInterface, and TContextMenu.

Definition at line 378 of file TObject.cxx.

◆ Execute() [2/2]

void TObject::Execute	(	TMethod *	method,
		TObjArray *	params,
		Int_t *	error = nullptr )

virtualinherited

Execute method on this object with parameters stored in the TObjArray.

The TObjArray should contain an argv vector like:

argv[0] ... argv[n] = the list of TObjString parameters

TObjString

Collectable string class.

Definition TObjString.h:28

Reimplemented in TCling, TMethodCall, TInterpreter, ROOT::R::TRInterface, and TContextMenu.

Definition at line 398 of file TObject.cxx.

◆ ExecuteEvent()

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

overridevirtual

Execute action corresponding to one event.

This member function is called when a graph 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.

Definition at line 146 of file TScatter.cxx.

◆ Fatal()

void TObject::Fatal	(	const char *	location,
		const char *	fmt,
			... ) const

virtualinherited

Issue fatal error message.

Use "location" to specify the method where the fatal error occurred. Accepts standard printf formatting arguments.

Definition at line 1126 of file TObject.cxx.

◆ FillBuffer()

void TNamed::FillBuffer ( char *& buffer )

virtualinherited

Encode TNamed into output buffer.

Reimplemented in TKeySQL, TSQLFile, TKeyXML, TXMLFile, TDirectoryFile, TFile, and TKey.

Definition at line 103 of file TNamed.cxx.

◆ FindObject() [1/2]

TObject * TObject::FindObject ( const char * name ) const

virtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object by name inside this object.

Reimplemented in TListOfEnums, TMap, TDirectory, TFolder, TROOT, TListOfTypes, TListOfTypes, TBtree, TCollection, THashList, THashTable, TList, TObjArray, TListOfDataMembers, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TListOfFunctionTemplates, TViewPubDataMembers, TViewPubFunctions, TPad, TGeometry, THbookFile, TGraph, TGraph2D, TH1, RooAbsCollection, and RooLinkedList.

Definition at line 425 of file TObject.cxx.

◆ FindObject() [2/2]

TObject * TObject::FindObject ( const TObject * obj ) const

virtualinherited

Must be redefined in derived classes.

This function is typically used with TCollections, but can also be used to find an object inside this object.

Reimplemented in TMap, TDirectory, TFolder, TROOT, TListOfTypes, TBtree, TCollection, THashList, THashTable, TList, TObjArray, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, TViewPubDataMembers, TViewPubFunctions, TPad, TGeometry, THbookFile, TGraph, TGraph2D, TH1, RooAbsCollection, and RooLinkedList.

Definition at line 435 of file TObject.cxx.

◆ GetColor()

Double_t * TScatter::GetColor ( ) const

inline

Get the array of colors.

Definition at line 53 of file TScatter.h.

◆ GetDrawOption()

Option_t * TObject::GetDrawOption ( ) const

virtualinherited

Get option used by the graphics system to draw this object.

Note that before calling object.GetDrawOption(), you must have called object.Draw(..) before in the current pad.

Reimplemented in TBrowser, TFitEditor, TGedFrame, TGFileBrowser, TRootBrowser, and TRootBrowserLite.

Definition at line 445 of file TObject.cxx.

◆ GetDtorOnly()

Longptr_t TObject::GetDtorOnly ( )

staticinherited

Return destructor only flag.

Definition at line 1196 of file TObject.cxx.

◆ GetFillColor()

virtual Color_t TAttFill::GetFillColor ( ) const

inlinevirtualinherited

Return the fill area color.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 32 of file TAttFill.h.

◆ GetFillStyle()

virtual Style_t TAttFill::GetFillStyle ( ) const

inlinevirtualinherited

Return the fill area style.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 33 of file TAttFill.h.

◆ GetGraph()

TGraph * TScatter::GetGraph ( ) const

inline

Get the graph holding X and Y positions.

Definition at line 58 of file TScatter.h.

◆ GetHistogram()

TH2F * TScatter::GetHistogram ( ) const

Get the graph histogram used for drawing axis.

Returns a pointer to the histogram used to draw the axis.

Definition at line 156 of file TScatter.cxx.

◆ GetIconName()

const char * TObject::GetIconName ( ) const

virtualinherited

Returns mime type name of object.

Used by the TBrowser (via TGMimeTypes class). Override for class of which you would like to have different icons for objects of the same class.

Reimplemented in TSystemFile, TGeoVolume, TASImage, TGMainFrame, TKey, ROOT::Experimental::XRooFit::xRooNode, TBranch, TVirtualBranchBrowsable, TMethodBrowsable, and TBranchElement.

Definition at line 472 of file TObject.cxx.

◆ GetLineColor()

virtual Color_t TAttLine::GetLineColor ( ) const

inlinevirtualinherited

Return the line color.

Reimplemented in TGraphMultiErrors, and TGWin32VirtualXProxy.

Definition at line 36 of file TAttLine.h.

◆ GetLineStyle()

virtual Style_t TAttLine::GetLineStyle ( ) const

inlinevirtualinherited

Return the line style.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 37 of file TAttLine.h.

◆ GetLineWidth()

virtual Width_t TAttLine::GetLineWidth ( ) const

inlinevirtualinherited

Return the line width.

Reimplemented in TGraphMultiErrors, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 38 of file TAttLine.h.

◆ GetMargin()

Double_t TScatter::GetMargin ( ) const

inline

Set the margin around the plot in %.

Definition at line 55 of file TScatter.h.

◆ GetMarkerColor()

virtual Color_t TAttMarker::GetMarkerColor ( ) const

inlinevirtualinherited

Return the marker color.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 33 of file TAttMarker.h.

◆ GetMarkerLineWidth()

Width_t TAttMarker::GetMarkerLineWidth ( Style_t style )

staticinherited

Internal helper function that returns the line width of the given marker style (0 = filled marker)

Definition at line 305 of file TAttMarker.cxx.

◆ GetMarkerSize()

virtual Size_t TAttMarker::GetMarkerSize ( ) const

inlinevirtualinherited

Return the marker size.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 35 of file TAttMarker.h.

◆ GetMarkerStyle()

virtual Style_t TAttMarker::GetMarkerStyle ( ) const

inlinevirtualinherited

Return the marker style.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 34 of file TAttMarker.h.

◆ GetMarkerStyleBase()

Style_t TAttMarker::GetMarkerStyleBase ( Style_t style )

staticinherited

Internal helper function that returns the corresponding marker style with line width 1 for the given style.

Definition at line 254 of file TAttMarker.cxx.

◆ GetMaxMarkerSize()

Double_t TScatter::GetMaxMarkerSize ( ) const

inline

Get the largest marker size used to paint the markers.

Definition at line 56 of file TScatter.h.

◆ GetMinMarkerSize()

Double_t TScatter::GetMinMarkerSize ( ) const

inline

Get the smallest marker size used to paint the markers.

Definition at line 57 of file TScatter.h.

◆ GetName()

const char * TNamed::GetName ( ) const

inlineoverridevirtualinherited

Returns name of object.

This default method returns the class name. Classes that give objects a name should override this method.

Reimplemented from TObject.

Definition at line 49 of file TNamed.h.

◆ GetObjectInfo()

char * TObject::GetObjectInfo	(	Int_t	px,
		Int_t	py ) const

virtualinherited

Returns string containing info about the object at position (px,py).

This method is typically overridden by classes of which the objects can report peculiarities for different positions. Returned string will be re-used (lock in MT environment).

Reimplemented in TGeoNode, TGeoVolume, TGeoTrack, TASImage, TColorWheel, TAxis3D, TNode, TGL5DDataSet, TGLHistPainter, TGLParametricEquation, TGLTH3Composition, TF1, TF2, TGraph, TH1, THistPainter, TPaletteAxis, TFileDrawMap, TParallelCoordVar, and TVirtualHistPainter.

Definition at line 491 of file TObject.cxx.

◆ GetObjectStat()

Bool_t TObject::GetObjectStat ( )

staticinherited

Get status of object stat flag.

Definition at line 1181 of file TObject.cxx.

◆ GetOption()

virtual Option_t * TObject::GetOption ( ) const

inlinevirtualinherited

Reimplemented in TGeoVolume, TArrow, TGaxis, TLegendEntry, TPave, TPolyLine, TAxis3D, THelix, TNode, TPolyLine3D, TPolyMarker3D, TH1, TPolyMarker, TFile, TMapFile, TPSocket, TSocket, TUDPSocket, TSelector, and TPoints3DABC.

Definition at line 147 of file TObject.h.

◆ GetSize()

Double_t * TScatter::GetSize ( ) const

inline

Get the array of marker sizes.

Definition at line 54 of file TScatter.h.

◆ GetTitle()

const char * TNamed::GetTitle ( ) const

inlineoverridevirtualinherited

Returns title of object.

This default method returns the class title (i.e. description). Classes that give objects a title should override this method.

Reimplemented from TObject.

Definition at line 50 of file TNamed.h.

◆ GetUniqueID()

UInt_t TObject::GetUniqueID ( ) const

virtualinherited

Return the unique object id.

Definition at line 480 of file TObject.cxx.

◆ GetXaxis()

TAxis * TScatter::GetXaxis ( ) const

Get the scatter's x axis.

Definition at line 181 of file TScatter.cxx.

◆ GetYaxis()

TAxis * TScatter::GetYaxis ( ) const

Get the scatter's y axis.

Definition at line 191 of file TScatter.cxx.

◆ GetZaxis()

TAxis * TScatter::GetZaxis ( ) const

Get the scatter's z axis.

Definition at line 201 of file TScatter.cxx.

◆ HandleTimer()

Bool_t TObject::HandleTimer ( TTimer * timer )

virtualinherited

Execute action in response of a timer timing out.

This method must be overridden if an object has to react to timers.

Reimplemented in TGWindow, TGuiBldDragManager, TGraphTime, TGLEventHandler, TGCommandPlugin, TGDNDManager, TGFileContainer, TGPopupMenu, TGScrollBar, TGShutter, TGTextEdit, TGTextEditor, TGTextEntry, TGTextView, TGToolTip, TGHtml, and TTreeViewer.

Definition at line 516 of file TObject.cxx.

◆ Hash()

ULong_t TNamed::Hash ( ) const

inlineoverridevirtualinherited

Return hash value for this object.

Note: If this routine is overloaded in a derived class, this derived class should also add

ROOT::CallRecursiveRemoveIfNeeded(*this)

ROOT::CallRecursiveRemoveIfNeeded

void CallRecursiveRemoveIfNeeded(TObject &obj)

call RecursiveRemove for obj if gROOT is valid and obj.TestBit(kMustCleanup) is true.

Definition TROOT.h:406

Otherwise, when RecursiveRemove is called (by ~TObject or example) for this type of object, the transversal of THashList and THashTable containers will will have to be done without call Hash (and hence be linear rather than logarithmic complexity). You will also see warnings like

Error in <ROOT::Internal::TCheckHashRecursiveRemoveConsistency::CheckRecursiveRemove>: The class SomeName overrides

TObject::Hash but does not call TROOT::RecursiveRemove in its destructor.

TNamed::Hash

ULong_t Hash() const override

Return hash value for this object.

Definition TNamed.h:51

TObject

Mother of all ROOT objects.

Definition TObject.h:42

TObject::Error

virtual void Error(const char *method, const char *msgfmt,...) const

Issue error message.

Definition TObject.cxx:1098

TROOT::RecursiveRemove

void RecursiveRemove(TObject *obj) override

Recursively remove this object from the list of Cleanups.

Definition TROOT.cxx:2651

Reimplemented from TObject.

Definition at line 51 of file TNamed.h.

◆ HasInconsistentHash()

Bool_t TObject::HasInconsistentHash ( ) const

inlineinherited

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

missing call to RecursiveRemove in destructor).

Note: Since the consistency is only tested for during inserts, this routine will return true for object that have never been inserted whether or not they have a consistent setup. This has no negative side-effect as searching for the object with the right or wrong Hash will always yield a not-found answer (Since anyway no hash can be guaranteed unique, there is always a check)

Definition at line 366 of file TObject.h.

◆ Info()

void TObject::Info	(	const char *	location,
		const char *	fmt,
			... ) const

virtualinherited

Issue info message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1072 of file TObject.cxx.

◆ InheritsFrom() [1/2]

Bool_t TObject::InheritsFrom ( const char * classname ) const

virtualinherited

Returns kTRUE if object inherits from class "classname".

Reimplemented in TClass.

Definition at line 549 of file TObject.cxx.

◆ InheritsFrom() [2/2]

Bool_t TObject::InheritsFrom ( const TClass * cl ) const

virtualinherited

Returns kTRUE if object inherits from TClass cl.

Reimplemented in TClass.

Definition at line 557 of file TObject.cxx.

◆ Inspect()

void TObject::Inspect ( ) const

virtualinherited

Dump contents of this object in a graphics canvas.

Same action as Dump but in a graphical form. In addition pointers to other objects can be followed.

The following picture is the Inspect of a histogram object:

Reimplemented in TSystemFile, TInspectorObject, TGFrame, and ROOT::Experimental::XRooFit::xRooNode.

Definition at line 570 of file TObject.cxx.

◆ InvertBit()

void TObject::InvertBit ( UInt_t f )

inlineinherited

Definition at line 206 of file TObject.h.

◆ IsA()

TClass * TScatter::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TNamed.

Definition at line 73 of file TScatter.h.

◆ IsDestructed()

Bool_t TObject::IsDestructed ( ) const

inlineinherited

IsDestructed.

Note: This function must be non-virtual as it can be used on destructed (but not yet modified) memory. This is used for example in TClonesArray to record the element that have been destructed but not deleted and thus are ready for re-use (by operator new with placement).

Returns: true if this object's destructor has been run.

Definition at line 186 of file TObject.h.

◆ IsEqual()

Bool_t TObject::IsEqual ( const TObject * obj ) const

virtualinherited

Default equal comparison (objects are equal if they have the same address in memory).

More complicated classes might want to override this function.

Reimplemented in TObjString, TQCommand, TPair, and TGObject.

Definition at line 589 of file TObject.cxx.

◆ IsFolder()

Bool_t TObject::IsFolder ( ) const

virtualinherited

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

Reimplemented in TDirectory, TFolder, TRemoteObject, TROOT, TSystemDirectory, TTask, TCollection, TPair, TBrowserObject, TBaseClass, TClass, TGeoManager, TGeoNode, TGeoNodeMatrix, TGeoVolume, TGeoOverlap, TGeoTrack, TCanvas, TPad, TAxis3D, TGeometry, TNode, TRootIconList, THbookFile, THbookKey, THnBase, ROOT::Internal::THnBaseBrowsable, TMultiDimFit, TPrincipal, TKey, TMapFile, TSPlot, TDatabasePDG, TParticleClassPDG, TApplicationRemote, ROOT::Experimental::XRooFit::xRooNode, TBranch, TVirtualBranchBrowsable, TBranchClones, TBranchElement, TBranchObject, TBranchSTL, and TTree.

Definition at line 579 of file TObject.cxx.

◆ IsOnHeap()

R__ALWAYS_INLINE Bool_t TObject::IsOnHeap ( ) const

inlineinherited

Definition at line 160 of file TObject.h.

◆ IsSortable()

Bool_t TNamed::IsSortable ( ) const

inlineoverridevirtualinherited

Reimplemented from TObject.

Reimplemented in TStructNodeProperty.

Definition at line 52 of file TNamed.h.

◆ IsTransparent()

Bool_t TAttFill::IsTransparent ( ) const

inlinevirtualinherited

Reimplemented in TGWin32VirtualXProxy.

Definition at line 49 of file TAttFill.h.

◆ IsZombie()

R__ALWAYS_INLINE Bool_t TObject::IsZombie ( ) const

inlineinherited

Definition at line 161 of file TObject.h.

◆ ls()

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

overridevirtualinherited

List TNamed name and title.

Reimplemented from TObject.

Reimplemented in ROOT::Experimental::XRooFit::xRooBrowser, TVirtualStreamerInfo, TROOT, TStreamerElement, TStreamerBase, TStreamerSTL, TText, TStreamerInfo, TTask, and TNode.

Definition at line 112 of file TNamed.cxx.

◆ MakeZombie()

void TObject::MakeZombie ( )

inlineprotectedinherited

Definition at line 55 of file TObject.h.

◆ MayNotUse()

void TObject::MayNotUse ( const char * method ) const

inherited

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).

Definition at line 1160 of file TObject.cxx.

◆ Modify() [1/3]

void TAttFill::Modify ( )

virtualinherited

Change current fill area attributes if necessary.

Definition at line 212 of file TAttFill.cxx.

◆ Modify() [2/3]

void TAttLine::Modify ( )

virtualinherited

Change current line attributes if necessary.

Definition at line 246 of file TAttLine.cxx.

◆ Modify() [3/3]

void TAttMarker::Modify ( )

virtualinherited

Change current marker attributes if necessary.

Definition at line 322 of file TAttMarker.cxx.

◆ ModifyOn() [1/3]

void TAttFill::ModifyOn ( TVirtualPad & pad )

virtualinherited

Change current fill area attributes on speicifed pad.

Definition at line 221 of file TAttFill.cxx.

◆ ModifyOn() [2/3]

void TAttLine::ModifyOn ( TVirtualPad & pad )

virtualinherited

Change current line attributes on specified pad.

Definition at line 255 of file TAttLine.cxx.

◆ ModifyOn() [3/3]

void TAttMarker::ModifyOn ( TVirtualPad & pad )

virtualinherited

Change current marker attributes if necessary on specified pad.

Definition at line 331 of file TAttMarker.cxx.

◆ Notify()

Bool_t TObject::Notify ( )

virtualinherited

This method must be overridden to handle object notification (the base implementation is no-op).

Different objects in ROOT use the Notify method for different purposes, in coordination with other objects that call this method at the appropriate time.

For example, TLeaf uses it to load class information; TBranchRef to load contents of referenced branches TBranchRef; most notably, based on Notify, TChain implements a callback mechanism to inform interested parties when it switches to a new sub-tree.

Reimplemented in TMessageHandler, TNotifyLink< Type >, TNotifyLink< RNoCleanupNotifierHelper >, TNotifyLink< ROOT::Detail::TBranchProxy >, TNotifyLink< TTreeReader >, TFileHandler, TSignalHandler, TStdExceptionHandler, TProcessEventTimer, TTimer, TIdleTimer, TSingleShotCleaner, TCollection, TRefTable, TBrowserTimer, TInterruptHandler, TTermInputHandler, TThreadTimer, TGLRedrawTimer, TViewTimer, TGContainerKeyboardTimer, TGContainerScrollTimer, TGInputHandler, TViewUpdateTimer, TPopupDelayTimer, TRepeatTimer, TSBRepeatTimer, TGTextEditHist, TInsCharCom, TDelCharCom, TBreakLineCom, TInsTextCom, TDelTextCom, TBlinkTimer, TTipDelayTimer, TGuiBldDragManagerRepeatTimer, TARInterruptHandler, TASLogHandler, TASInterruptHandler, TASSigPipeHandler, TASInputHandler, TSocketHandler, TTimeOutTimer, TBranchElement, TBranchRef, TLeafObject, TSelector, TTree, TSelectorDraw, TSelectorEntries, TTreeFormula, TTreeFormulaManager, TTreeReader, h1analysis, h1analysisTreeReader, and TSysEvtHandler.

Definition at line 618 of file TObject.cxx.

◆ Obsolete()

void TObject::Obsolete	(	const char *	method,
		const char *	asOfVers,
		const char *	removedFromVers ) const

inherited

Use this method to declare a method obsolete.

Specify as of which version the method is obsolete and as from which version it will be removed.

Definition at line 1169 of file TObject.cxx.

◆ operator delete() [1/3]

void TObject::operator delete	(	void *	ptr,
		size_t	size )

inherited

Operator delete for sized deallocation.

Definition at line 1234 of file TObject.cxx.

◆ operator delete() [2/3]

void TObject::operator delete ( void * ptr )

inherited

Operator delete.

Definition at line 1212 of file TObject.cxx.

◆ operator delete() [3/3]

void TObject::operator delete	(	void *	ptr,
		void *	vp )

inherited

Only called by placement new when throwing an exception.

Definition at line 1266 of file TObject.cxx.

◆ operator delete[]() [1/3]

void TObject::operator delete[]	(	void *	ptr,
		size_t	size )

inherited

Operator delete [] for sized deallocation.

Definition at line 1245 of file TObject.cxx.

◆ operator delete[]() [2/3]

void TObject::operator delete[] ( void * ptr )

inherited

Operator delete [].

Definition at line 1223 of file TObject.cxx.

◆ operator delete[]() [3/3]

void TObject::operator delete[]	(	void *	ptr,
		void *	vp )

inherited

Only called by placement new[] when throwing an exception.

Definition at line 1274 of file TObject.cxx.

◆ operator new() [1/2]

void * TObject::operator new ( size_t sz )

inlineinherited

Definition at line 189 of file TObject.h.

◆ operator new() [2/2]

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

inlineinherited

Definition at line 191 of file TObject.h.

◆ operator new[]() [1/2]

void * TObject::operator new[] ( size_t sz )

inlineinherited

Definition at line 190 of file TObject.h.

◆ operator new[]() [2/2]

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

inlineinherited

Definition at line 192 of file TObject.h.

◆ Paint()

void TScatter::Paint ( Option_t * chopt = "" )

overridevirtual

Paint this scatter plot with its current attributes.

Reimplemented from TObject.

Definition at line 211 of file TScatter.cxx.

◆ Pop()

void TObject::Pop ( )

virtualinherited

Pop on object drawn in a pad to the top of the display list.

I.e. it will be drawn last and on top of all other primitives.

Reimplemented in TPad, TFrame, and TVirtualPad.

Definition at line 640 of file TObject.cxx.

◆ Print()

void TScatter::Print ( Option_t * chopt = "" ) const

overridevirtual

Print graph and errors values.

Reimplemented from TNamed.

Definition at line 221 of file TScatter.cxx.

◆ Read()

Int_t TObject::Read ( const char * name )

virtualinherited

Read contents of object with specified name from the current directory.

First the key with the given name is searched in the current directory, next the key buffer is deserialized into the object. The object must have been created before via the default constructor. See TObject::Write().

Reimplemented in TKeyXML, TBuffer, TKey, and TKeySQL.

Definition at line 673 of file TObject.cxx.

◆ RecursiveRemove()

void TObject::RecursiveRemove ( TObject * obj )

virtualinherited

Recursively remove this object from a list.

Typically implemented by classes that can contain multiple references to a same object.

Reimplemented in THistPainter, TCling, TDirectory, TFolder, TProcessID, TROOT, TCollection, THashList, TList, TObjArray, TBrowser, TObjectSpy, TObjectRefSpy, TListOfDataMembers, TListOfEnums, TListOfEnumsWithLock, TListOfFunctions, TListOfFunctionTemplates, ROOT::Internal::TCheckHashRecursiveRemoveConsistency, TViewPubDataMembers, TViewPubFunctions, TDialogCanvas, TInspectCanvas, TPad, TLegend, TGeometry, TNode, ROOT::RBrowserDataCleanup, TFitEditor, TGedEditor, TH1Editor, TH2Editor, TGFileBrowser, TRootBrowser, TRootBrowserLite, TRootContextMenu, TRootBrowserHistory, TEfficiency, TGraph, TGraph2D, TH1, THStack, TMultiGraph, TFileMerger, RooAbsCollection, RooAbsData, RooLinkedList, RooMCStudy, RooWorkspace, TChain, TFriendElement, TTree, TTreePlayer, and TVirtualPad.

Definition at line 684 of file TObject.cxx.

◆ ResetAttFill()

void TAttFill::ResetAttFill ( Option_t * option = "" )

virtualinherited

Reset this fill attributes to default values.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 231 of file TAttFill.cxx.

◆ ResetAttLine()

void TAttLine::ResetAttLine ( Option_t * option = "" )

virtualinherited

Reset this line attributes to default values.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 279 of file TAttLine.cxx.

◆ ResetAttMarker()

void TAttMarker::ResetAttMarker ( Option_t * toption = "" )

virtualinherited

Reset this marker attributes to the default values.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 342 of file TAttMarker.cxx.

◆ ResetBit()

void TObject::ResetBit ( UInt_t f )

inlineinherited

Definition at line 203 of file TObject.h.

◆ SaveAs()

void TObject::SaveAs	(	const char *	filename = "",
		Option_t *	option = "" ) const

virtualinherited

Save this object in the file specified by filename.

if "filename" contains ".root" the object is saved in filename as root binary file.
if "filename" contains ".xml" the object is saved in filename as a xml ascii file.
if "filename" contains ".cc" the object is saved in filename as C code independent from ROOT. The code is generated via SavePrimitive(). Specific code should be implemented in each object to handle this option. Like in TF1::SavePrimitive().
otherwise the object is written to filename as a CINT/C++ script. The C++ code to rebuild this object is generated via SavePrimitive(). The "option" parameter is passed to SavePrimitive. By default it is an empty string. It can be used to specify the Draw option in the code generated by SavePrimitive.

The function is available via the object context menu.

Reimplemented in TSpline, TFolder, TGeoVolume, TClassTree, TPad, TPaveClass, TGObject, TSpline3, TSpline5, ROOT::Experimental::XRooFit::xRooNode, TTreePerfStats, TVirtualPad, TGraph, and TH1.

Definition at line 708 of file TObject.cxx.

◆ SaveFillAttributes()

void TAttFill::SaveFillAttributes	(	std::ostream &	out,
		const char *	name,
		Int_t	coldef = 1,
		Int_t	stydef = 1001 )

virtualinherited

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

Definition at line 240 of file TAttFill.cxx.

◆ SaveLineAttributes()

void TAttLine::SaveLineAttributes	(	std::ostream &	out,
		const char *	name,
		Int_t	coldef = 1,
		Int_t	stydef = 1,
		Int_t	widdef = 1 )

virtualinherited

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

Definition at line 289 of file TAttLine.cxx.

◆ SaveMarkerAttributes()

void TAttMarker::SaveMarkerAttributes	(	std::ostream &	out,
		const char *	name,
		Int_t	coldef = 1,
		Int_t	stydef = 1,
		Int_t	sizdef = 1 )

virtualinherited

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

Definition at line 352 of file TAttMarker.cxx.

◆ SavePrimitive()

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

overridevirtual

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

Reimplemented from TObject.

Definition at line 250 of file TScatter.cxx.

◆ SavePrimitiveConstructor()

void TObject::SavePrimitiveConstructor	(	std::ostream &	out,
		TClass *	cl,
		const char *	variable_name,
		const char *	constructor_agrs = "",
		Bool_t	empty_line = kTRUE )

staticprotectedinherited

Save object constructor in the output stream "out".

Can be used as first statement when implementing SavePrimitive() method for the object

Definition at line 777 of file TObject.cxx.

◆ SavePrimitiveDraw()

void TObject::SavePrimitiveDraw	(	std::ostream &	out,
		const char *	variable_name,
		Option_t *	option = nullptr )

staticprotectedinherited

Save invocation of primitive Draw() method Skipped if option contains "nodraw" string.

Definition at line 845 of file TObject.cxx.

◆ SavePrimitiveNameTitle()

void TNamed::SavePrimitiveNameTitle	(	std::ostream &	out,
		const char *	variable_name )

protectedinherited

Save object name and title into the output stream "out".

Definition at line 135 of file TNamed.cxx.

◆ SavePrimitiveVector()

TString TObject::SavePrimitiveVector	(	std::ostream &	out,
		const char *	prefix,
		Int_t	len,
		Double_t *	arr,
		Int_t	flag = 0 )

staticprotectedinherited

Save array in the output stream "out" as vector.

Create unique variable name based on prefix value Returns name of vector which can be used in constructor or in other places of C++ code If flag === kTRUE, just add empty line If flag === 111, check if array is empty and return nullptr or <vectorname>.data()

Definition at line 796 of file TObject.cxx.

◆ SetBit() [1/2]

void TObject::SetBit ( UInt_t f )

inlineinherited

Definition at line 202 of file TObject.h.

◆ SetBit() [2/2]

void TObject::SetBit	(	UInt_t	f,
		Bool_t	set )

inherited

Set or unset the user status bits as specified in f.

Definition at line 888 of file TObject.cxx.

◆ SetDrawOption()

void TObject::SetDrawOption ( Option_t * option = "" )

virtualinherited

Set drawing option for object.

This option only affects the drawing style and is stored in the option field of the TObjOptLink supporting a TPad's primitive list (TList). Note that it does not make sense to call object.SetDrawOption(option) before having called object.Draw().

Reimplemented in TSystemDirectory, TSystemFile, TPad, TGFrame, TAxis, TBrowser, TPaveStats, TGedFrame, TRootBrowserLite, and RooPlot.

Definition at line 871 of file TObject.cxx.

◆ SetDtorOnly()

void TObject::SetDtorOnly ( void * obj )

staticinherited

Set destructor only flag.

Definition at line 1204 of file TObject.cxx.

◆ SetFillAttributes()

void TAttFill::SetFillAttributes ( )

virtualinherited

Invoke the DialogCanvas Fill attributes.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 251 of file TAttFill.cxx.

◆ SetFillColor() [1/2]

virtual void TAttFill::SetFillColor ( Color_t fcolor )

inlinevirtualinherited

Set the fill area color.

Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TSpider, and TGraphMultiErrors.

Definition at line 40 of file TAttFill.h.

◆ SetFillColor() [2/2]

void TAttFill::SetFillColor ( TColorNumber lcolor )

inherited

Set a fill color.

Definition at line 270 of file TAttFill.cxx.

◆ SetFillColorAlpha()

void TAttFill::SetFillColorAlpha	(	Color_t	fcolor,
		Float_t	falpha )

virtualinherited

Set a transparent fill color.

Parameters

fcolor	defines the fill color
falpha	defines the percentage of opacity from 0. (fully transparent) to 1. (fully opaque).

Note: falpha is ignored (treated as 1) if the TCanvas has no GL support activated.

Reimplemented in TGraphMultiErrors.

Definition at line 262 of file TAttFill.cxx.

◆ SetFillStyle()

virtual void TAttFill::SetFillStyle ( Style_t fstyle )

inlinevirtualinherited

Set the fill area style.

Reimplemented in TGraphMultiErrors, TPad, TSpider, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, and TGX11.

Definition at line 42 of file TAttFill.h.

◆ SetHistogram()

void TScatter::SetHistogram ( TH2F * h )

inline

Definition at line 67 of file TScatter.h.

◆ SetLineAttributes()

void TAttLine::SetLineAttributes ( )

virtualinherited

Invoke the DialogCanvas Line attributes.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 306 of file TAttLine.cxx.

◆ SetLineColor() [1/2]

virtual void TAttLine::SetLineColor ( Color_t lcolor )

inlinevirtualinherited

Set the line color.

Reimplemented in TEveTrackList, ROOT::Experimental::REveTrackList, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TEveLine, TEveStraightLineSet, ROOT::Experimental::REveLine, ROOT::Experimental::REveStraightLineSet, TParallelCoordRange, TSpider, TGraphMultiErrors, TGeoVolume, and TGeoVolumeMulti.

Definition at line 44 of file TAttLine.h.

◆ SetLineColor() [2/2]

void TAttLine::SetLineColor ( TColorNumber lcolor )

inherited

Definition at line 322 of file TAttLine.cxx.

◆ SetLineColorAlpha()

void TAttLine::SetLineColorAlpha	(	Color_t	lcolor,
		Float_t	lalpha )

virtualinherited

Set a transparent line color.

Parameters

lcolor	defines the line color
lalpha	defines the percentage of opacity from 0. (fully transparent) to 1. (fully opaque).

Note: lalpha is ignored (treated as 1) if the TCanvas has no GL support activated.

Reimplemented in TGraphMultiErrors.

Definition at line 317 of file TAttLine.cxx.

◆ SetLineStyle()

virtual void TAttLine::SetLineStyle ( Style_t lstyle )

inlinevirtualinherited

Set the line style.

Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TGraphMultiErrors, TGeoVolume, TGeoVolumeMulti, TEveLine, ROOT::Experimental::REveLine, TEveTrackList, ROOT::Experimental::REveTrackList, and TSpider.

Definition at line 46 of file TAttLine.h.

◆ SetLineWidth()

virtual void TAttLine::SetLineWidth ( Width_t lwidth )

inlinevirtualinherited

Set the line width.

Reimplemented in TPDF, TPostScript, TSVG, TTeXDump, TGraphMultiErrors, TGeoVolume, TGeoVolumeMulti, TEveLine, ROOT::Experimental::REveLine, TEveTrackList, ROOT::Experimental::REveTrackList, TParallelCoordRange, TSpider, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, and TPaletteAxis.

Definition at line 47 of file TAttLine.h.

◆ SetMargin()

void TScatter::SetMargin ( Double_t margin )

Set the margin around the plot in %.

Definition at line 237 of file TScatter.cxx.

◆ SetMarkerAttributes()

void TAttMarker::SetMarkerAttributes ( )

virtualinherited

Invoke the DialogCanvas Marker attributes.

Reimplemented in TGWin32VirtualXProxy.

Definition at line 365 of file TAttMarker.cxx.

◆ SetMarkerColor() [1/2]

virtual void TAttMarker::SetMarkerColor ( Color_t mcolor = 1 )

inlinevirtualinherited

Set the marker color.

Reimplemented in TEveTrackList, ROOT::Experimental::REveTrackList, TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TPDF, TPostScript, TSVG, TTeXDump, TEveLine, TEvePointSet, ROOT::Experimental::REveLine, ROOT::Experimental::REvePointSet, TEvePointSetArray, and ROOT::Experimental::REvePointSetArray.

Definition at line 41 of file TAttMarker.h.

◆ SetMarkerColor() [2/2]

void TAttMarker::SetMarkerColor ( TColorNumber lcolor )

inherited

Definition at line 381 of file TAttMarker.cxx.

◆ SetMarkerColorAlpha()

void TAttMarker::SetMarkerColorAlpha	(	Color_t	mcolor,
		Float_t	malpha )

virtualinherited

Set a transparent marker color.

Parameters

mcolor	defines the marker color
malpha	defines the percentage of opacity from 0. (fully transparent) to 1. (fully opaque).

Note: malpha is ignored (treated as 1) if the TCanvas has no GL support activated.

Definition at line 376 of file TAttMarker.cxx.

◆ SetMarkerSize()

virtual void TAttMarker::SetMarkerSize ( Size_t msize = 1 )

inlinevirtualinherited

Set the marker size.

Note that the marker styles number 1 6 and 7 (the dots), cannot be scaled. They are meant to be very fast to draw and are always drawn with the same number of pixels; therefore this method does not apply on them.

Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TTeXDump, TEvePointSet, TEvePointSetArray, ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, TEveTrackList, and ROOT::Experimental::REveTrackList.

Definition at line 48 of file TAttMarker.h.

◆ SetMarkerStyle()

virtual void TAttMarker::SetMarkerStyle ( Style_t mstyle = 1 )

inlinevirtualinherited

Set the marker style.

Reimplemented in TVirtualX, TGQuartz, TGWin32, TGWin32VirtualXProxy, TGX11, TEvePointSet, TEvePointSetArray, ROOT::Experimental::REvePointSet, ROOT::Experimental::REvePointSetArray, TEveTrackList, and ROOT::Experimental::REveTrackList.

Definition at line 43 of file TAttMarker.h.

◆ SetMaxMarkerSize()

void TScatter::SetMaxMarkerSize ( Double_t max )

inline

Set the largest marker size used to paint the markers.

Definition at line 64 of file TScatter.h.

◆ SetMinMarkerSize()

void TScatter::SetMinMarkerSize ( Double_t min )

inline

Set the smallest marker size used to paint the markers.

Definition at line 65 of file TScatter.h.

◆ SetName()

void TNamed::SetName ( const char * name )

virtualinherited

Set the name of the TNamed.

WARNING: if the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented in TEveScene, TColor, TSystemDirectory, TSystemFile, TNode, TRotMatrix, TShape, TEfficiency, TFormula, TGraph2D, TH1, RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, ROOT::Experimental::XRooFit::xRooNode, TChain, TEventList, TTree, TGraph, and TDirectory.

Definition at line 149 of file TNamed.cxx.

◆ SetNameTitle()

void TNamed::SetNameTitle	(	const char *	name,
		const char *	title )

virtualinherited

Set all the TNamed parameters (name and title).

WARNING: if the name is changed and the object is a member of a THashTable or THashList container the container must be Rehash()'ed after SetName(). For example the list of objects in the current directory is a THashList.

Reimplemented in TContextMenu, TNode, TGraph2D, TH1, RooAbsArg, RooAbsData, RooDataHist, RooDataSet, RooFitResult, RooPlot, and TGraph.

Definition at line 163 of file TNamed.cxx.

◆ SetObjectStat()

void TObject::SetObjectStat ( Bool_t stat )

staticinherited

Turn on/off tracking of objects in the TObjectTable.

Definition at line 1188 of file TObject.cxx.

◆ SetTitle()

void TNamed::SetTitle ( const char * title = "" )

virtualinherited

Set the title of the TNamed.

Reimplemented in ROOT::TSchemaRule::TSources, TParallelCoordVar, RooPlot, TSystemDirectory, TSystemFile, TEfficiency, TH1, THnBase, ROOT::Experimental::XRooFit::xRooNode, Axis2, TASImage, TF1, TGraph, and TGraph2D.

Definition at line 173 of file TNamed.cxx.

◆ SetUniqueID()

void TObject::SetUniqueID ( UInt_t uid )

virtualinherited

Set the unique object id.

Definition at line 899 of file TObject.cxx.

◆ Sizeof()

Int_t TNamed::Sizeof ( ) const

virtualinherited

Return size of the TNamed part of the TObject.

Reimplemented in TSQLFile, TXMLFile, TDirectory, TDirectoryFile, TFile, and TKey.

Definition at line 182 of file TNamed.cxx.

◆ Streamer()

void TScatter::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TNamed.

◆ StreamerNVirtual()

void TScatter::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 73 of file TScatter.h.

◆ SysError()

void TObject::SysError	(	const char *	location,
		const char *	fmt,
			... ) const

virtualinherited

Issue system error message.

Use "location" to specify the method where the system error occurred. Accepts standard printf formatting arguments.

Definition at line 1112 of file TObject.cxx.

◆ TestBit()

R__ALWAYS_INLINE Bool_t TObject::TestBit ( UInt_t f ) const

inlineinherited

Definition at line 204 of file TObject.h.

◆ TestBits()

Int_t TObject::TestBits ( UInt_t f ) const

inlineinherited

Definition at line 205 of file TObject.h.

◆ UseCurrentStyle()

void TObject::UseCurrentStyle ( )

virtualinherited

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

Reimplemented in TCanvas, TPad, TFrame, TPaveStats, TPaveText, TAxis3D, TGraph, TH1, and TTree.

Definition at line 909 of file TObject.cxx.

◆ Warning()

void TObject::Warning	(	const char *	location,
		const char *	fmt,
			... ) const

virtualinherited

Issue warning message.

Use "location" to specify the method where the warning occurred. Accepts standard printf formatting arguments.

Definition at line 1084 of file TObject.cxx.

◆ Write() [1/2]

Int_t TObject::Write	(	const char *	name = nullptr,
		Int_t	option = 0,
		Int_t	bufsize = 0 )

virtualinherited

Write this object to the current directory.

For more see the const version of this method.

Reimplemented in TSQLFile, TXMLFile, TDirectory, TBuffer, ROOT::TBufferMergerFile, TDirectoryFile, TFile, TParallelMergingFile, TCollection, TMap, and TTree.

Definition at line 989 of file TObject.cxx.

◆ Write() [2/2]

Int_t TObject::Write	(	const char *	name = nullptr,
		Int_t	option = 0,
		Int_t	bufsize = 0 ) const

virtualinherited

Write this object to the current directory.

The data structure corresponding to this object is serialized. The corresponding buffer is written to the current directory with an associated key with name "name".

Writing an object to a file involves the following steps:

Creation of a support TKey object in the current directory. The TKey object creates a TBuffer object.
The TBuffer object is filled via the class::Streamer function.
If the file is compressed (default) a second buffer is created to hold the compressed buffer.
Reservation of the corresponding space in the file by looking in the TFree list of free blocks of the file.
The buffer is written to the file.

Bufsize can be given to force a given buffer size to write this object. By default, the buffersize will be taken from the average buffer size of all objects written to the current file so far.

If a name is specified, it will be the name of the key. If name is not given, the name of the key will be the name as returned by GetName().

The option can be a combination of: kSingleKey, kOverwrite or kWriteDelete Using the kOverwrite option a previous key with the same name is overwritten. The previous key is deleted before writing the new object. Using the kWriteDelete option a previous key with the same name is deleted only after the new object has been written. This option is safer than kOverwrite but it is slower. NOTE: Neither kOverwrite nor kWriteDelete reduces the size of a TFile– the space is simply freed up to be overwritten; in the case of a TTree, it is more complicated. If one opens a TTree, appends some entries, then writes it out, the behaviour is effectively the same. If, however, one creates a new TTree and writes it out in this way, only the metadata is replaced, effectively making the old data invisible without deleting it. TTree::Delete() can be used to mark all disk space occupied by a TTree as free before overwriting its metadata this way. The kSingleKey option is only used by TCollection::Write() to write a container with a single key instead of each object in the container with its own key.

An object is read from the file into memory via TKey::Read() or via TObject::Read().

The function returns the total number of bytes written to the file. It returns 0 if the object cannot be written.

Reimplemented in TSQLFile, TXMLFile, TDirectory, TBuffer, TDirectoryFile, TFile, TParallelMergingFile, TCollection, TMap, and TTree.

Definition at line 964 of file TObject.cxx.

Member Data Documentation

◆ fBits

UInt_t TObject::fBits

privateinherited

bit field status word

Definition at line 47 of file TObject.h.

◆ fColor

Double_t* TScatter::fColor {nullptr}

protected

[fNpoints] array of colors

Definition at line 39 of file TScatter.h.

◆ fFillColor

Color_t TAttFill::fFillColor

protectedinherited

Fill area color.

Definition at line 24 of file TAttFill.h.

◆ fFillStyle

Style_t TAttFill::fFillStyle

protectedinherited

Fill area style.

Definition at line 25 of file TAttFill.h.

◆ fgDtorOnly

Longptr_t TObject::fgDtorOnly = 0

staticprivateinherited

object for which to call dtor only (i.e. no delete)

Definition at line 49 of file TObject.h.

◆ fgObjectStat

Bool_t TObject::fgObjectStat = kTRUE

staticprivateinherited

if true keep track of objects in TObjectTable

Definition at line 50 of file TObject.h.

◆ fGraph

TGraph* TScatter::fGraph {nullptr}

protected

Pointer to graph holding X and Y positions.

Definition at line 38 of file TScatter.h.

◆ fHistogram

TH2F* TScatter::fHistogram {nullptr}

protected

Pointer to histogram used for drawing axis.

Definition at line 37 of file TScatter.h.

◆ fLineColor

Color_t TAttLine::fLineColor

protectedinherited

Line color.

Definition at line 24 of file TAttLine.h.

◆ fLineStyle

Style_t TAttLine::fLineStyle

protectedinherited

Line style.

Definition at line 25 of file TAttLine.h.

◆ fLineWidth

Width_t TAttLine::fLineWidth

protectedinherited

Line width.

Definition at line 26 of file TAttLine.h.

◆ fMargin

Double_t TScatter::fMargin {.1}

protected

Margin around the plot in %.

Definition at line 43 of file TScatter.h.

◆ fMarkerColor

Color_t TAttMarker::fMarkerColor

protectedinherited

Marker color.

Definition at line 24 of file TAttMarker.h.

◆ fMarkerSize

Size_t TAttMarker::fMarkerSize

protectedinherited

Marker size.

Definition at line 26 of file TAttMarker.h.

◆ fMarkerStyle

Style_t TAttMarker::fMarkerStyle

protectedinherited

Marker style.

Definition at line 25 of file TAttMarker.h.

◆ fMaxMarkerSize

Double_t TScatter::fMaxMarkerSize {5.}

protected

Largest marker size used to paint the markers.

Definition at line 41 of file TScatter.h.

◆ fMaxSize

Int_t TScatter::fMaxSize {-1}

protected

!Current dimension of arrays fX and fY

Definition at line 35 of file TScatter.h.

◆ fMinMarkerSize

Double_t TScatter::fMinMarkerSize {1.}

protected

Smallest marker size used to paint the markers.

Definition at line 42 of file TScatter.h.

◆ fName

TString TNamed::fName

protectedinherited

Definition at line 32 of file TNamed.h.

◆ fNpoints

Int_t TScatter::fNpoints {-1}

protected

Number of points <= fMaxSize.

Definition at line 36 of file TScatter.h.

◆ fSize

Double_t* TScatter::fSize {nullptr}

protected

[fNpoints] array of marker sizes

Definition at line 40 of file TScatter.h.

◆ fTitle

TString TNamed::fTitle

protectedinherited

Definition at line 33 of file TNamed.h.

◆ fUniqueID

UInt_t TObject::fUniqueID

privateinherited

object unique identifier

Definition at line 46 of file TObject.h.

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

hist/hist/inc/TScatter.h
hist/hist/src/TScatter.cxx

Key Features:

Example Usage:

TScatter's plotting options

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Static Private Member Functions

Private Attributes

Static Private Attributes

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

◆ anonymous enum

◆ EDeprecatedStatusBits

◆ EStatusBits

Constructor & Destructor Documentation

◆ TScatter() [1/3]

◆ TScatter() [2/3]

◆ TScatter() [3/3]

◆ ~TScatter()

Member Function Documentation

◆ AbstractMethod()

◆ AddToTObjectTable()

◆ AppendPad()

◆ Browse()

◆ CheckedHash()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ ClassName()

◆ Clear()

◆ Clone()

◆ Compare()

◆ Copy() [1/4]

◆ Copy() [2/4]

◆ Copy() [3/4]

◆ Copy() [4/4]

◆ DeclFileName()

◆ Delete()

◆ DistancetoLine()

◆ DistancetoPrimitive()

◆ DoError()

◆ Draw()

◆ DrawClass()

◆ DrawClone()

◆ Dump()

◆ Error()

◆ Execute() [1/2]

◆ Execute() [2/2]

◆ ExecuteEvent()

◆ Fatal()

◆ FillBuffer()

◆ FindObject() [1/2]

◆ FindObject() [2/2]

◆ GetColor()

◆ GetDrawOption()

◆ GetDtorOnly()

◆ GetFillColor()

◆ GetFillStyle()

◆ GetGraph()

◆ GetHistogram()

◆ GetIconName()

◆ GetLineColor()

◆ GetLineStyle()

◆ GetLineWidth()

◆ GetMargin()

◆ GetMarkerColor()

◆ GetMarkerLineWidth()

◆ GetMarkerSize()

◆ GetMarkerStyle()

◆ GetMarkerStyleBase()

◆ GetMaxMarkerSize()

◆ GetMinMarkerSize()

◆ GetName()

◆ GetObjectInfo()

◆ GetObjectStat()