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Reference Guide
TSelectorDraw Class Reference

A specialized TSelector for TTree::Draw.

Definition at line 33 of file TSelectorDraw.h.

Public Member Functions

 TSelectorDraw ()
 Default selector constructor. More...
 
virtual ~TSelectorDraw ()
 Selector destructor. More...
 
virtual void Begin (TTree *tree)
 Called every time a loop on the tree(s) starts. More...
 
virtual Int_t GetAction () const
 
virtual Bool_t GetCleanElist () const
 
virtual Int_t GetDimension () const
 
virtual Long64_t GetDrawFlag () const
 
Int_t GetMultiplicity () const
 
virtual Int_t GetNfill () const
 
TObjectGetObject () const
 
TH1GetOldHistogram () const
 
TTreeFormulaGetSelect () const
 
virtual Long64_t GetSelectedRows () const
 
TTreeGetTree () const
 
virtual Double_tGetV1 () const
 See TSelectorDraw::GetVal. More...
 
virtual Double_tGetV2 () const
 See TSelectorDraw::GetVal. More...
 
virtual Double_tGetV3 () const
 See TSelectorDraw::GetVal. More...
 
virtual Double_tGetV4 () const
 See TSelectorDraw::GetVal. More...
 
virtual Double_tGetVal (Int_t i) const
 Return the last values corresponding to the i-th component of the formula being processed (where the component are ':' separated). More...
 
TTreeFormulaGetVar (Int_t i) const
 Return the TTreeFormula corresponding to the i-th component of the request formula (where the component are ':' separated). More...
 
TTreeFormulaGetVar1 () const
 See TSelectorDraw::GetVar. More...
 
TTreeFormulaGetVar2 () const
 See TSelectorDraw::GetVar. More...
 
TTreeFormulaGetVar3 () const
 See TSelectorDraw::GetVar. More...
 
TTreeFormulaGetVar4 () const
 See TSelectorDraw::GetVar. More...
 
virtual Double_tGetW () const
 
virtual Bool_t Notify ()
 This function is called at the first entry of a new tree in a chain. More...
 
virtual Bool_t Process (Long64_t)
 The Process() function is called for each entry in the tree (or possibly keyed object in the case of PROOF) to be processed. More...
 
virtual void ProcessFill (Long64_t entry)
 Called in the entry loop for all entries accepted by Select. More...
 
virtual void ProcessFillMultiple (Long64_t entry)
 Called in the entry loop for all entries accepted by Select. More...
 
virtual void ProcessFillObject (Long64_t entry)
 Called in the entry loop for all entries accepted by Select. More...
 
virtual void SetEstimate (Long64_t n)
 Set number of entries to estimate variable limits. More...
 
virtual UInt_t SplitNames (const TString &varexp, std::vector< TString > &names)
 Build Index array for names in varexp. More...
 
virtual void TakeAction ()
 Execute action for object obj fNfill times. More...
 
virtual void TakeEstimate ()
 Estimate limits for 1-D, 2-D or 3-D objects. More...
 
virtual void Terminate ()
 Called at the end of a loop on a TTree. More...
 
- Public Member Functions inherited from TSelector
 TSelector ()
 Default selector ctor. More...
 
virtual ~TSelector ()
 Selector destructor. More...
 
virtual void Abort (const char *why, EAbort what=kAbortProcess)
 Abort processing. More...
 
virtual EAbort GetAbort () const
 
virtual Int_t GetEntry (Long64_t, Int_t=0)
 
virtual TListGetInputList () const
 
virtual const char * GetOption () const
 
virtual TListGetOutputList () const
 
virtual Long64_t GetStatus () const
 
virtual void ImportOutput (TList *output)
 Imports the content of 'output' in the internal output list. More...
 
virtual void Init (TTree *)
 
virtual Bool_t ProcessCut (Long64_t)
 This method is called before processing entry. More...
 
virtual void ResetAbort ()
 
virtual void SetInputList (TList *input)
 
virtual void SetObject (TObject *obj)
 
virtual void SetOption (const char *option)
 
virtual void SetStatus (Long64_t status)
 
virtual void SlaveBegin (TTree *)
 
virtual void SlaveTerminate ()
 
virtual int Version () const
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual const char * GetName () const
 Returns name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsEqual (const TObject *obj) const
 Default equal comparison (objects are equal if they have the same address in memory). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual void Print (Option_t *option="") const
 This method must be overridden when a class wants to print itself. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Protected Types

enum  EStatusBits { kWarn = BIT(12) }
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }
 

Protected Member Functions

virtual void ClearFormula ()
 Delete internal buffers. More...
 
virtual Bool_t CompileVariables (const char *varexp="", const char *selection="")
 Compile input variables and selection expression. More...
 
virtual void InitArrays (Int_t newsize)
 Initialization of the primitive type arrays if the new size is bigger than the available space. More...
 
- Protected Member Functions inherited from TObject
virtual void DoError (int level, const char *location, const char *fmt, va_list va) const
 Interface to ErrorHandler (protected). More...
 
void MakeZombie ()
 

Protected Attributes

Int_t fAction
 ! Action type More...
 
Bool_t fCleanElist
 True if original Tree elist must be saved. More...
 
Long64_t fCurrentSubEntry
 Current subentry when fSelectMultiple is true. Used to fill TEntryListArray. More...
 
Int_t fDimension
 Dimension of the current expression. More...
 
Long64_t fDraw
 ! Last entry loop number when object was drawn More...
 
Int_t fForceRead
 Force Read flag. More...
 
TTreeFormulaManagerfManager
 Pointer to the formula manager. More...
 
Int_t fMultiplicity
 Indicator of the variability of the size of entries. More...
 
Int_tfNbins
 ![fDimension] Number of bins per dimension More...
 
Int_t fNfill
 ! Total number of histogram fills More...
 
Bool_t fObjEval
 True if fVar1 returns an object (or pointer to). More...
 
Long64_t fOldEstimate
 Value of Tree fEstimate when selector is called. More...
 
TH1fOldHistogram
 ! Pointer to previously used histogram More...
 
TTreeFormulafSelect
 Pointer to selection formula. More...
 
Long64_t fSelectedRows
 Number of selected entries. More...
 
Bool_t fSelectMultiple
 True if selection has a variable index. More...
 
TTreefTree
 Pointer to current Tree. More...
 
TObjectfTreeElist
 Pointer to Tree Event list. More...
 
TEntryListArrayfTreeElistArray
 ! Pointer to Tree Event list array More...
 
Double_t ** fVal
 ![fSelectedRows][fDimension] Local buffer for the variables More...
 
Int_t fValSize
 
TTreeFormula ** fVar
 ![fDimension] Array of pointers to variables formula More...
 
Bool_tfVarMultiple
 ![fDimension] True if fVar[i] has a variable index More...
 
Double_tfVmax
 ![fDimension] Maxima of varexp columns More...
 
Double_tfVmin
 ![fDimension] Minima of varexp columns More...
 
Double_tfW
 ![fSelectedRows]Local buffer for weights More...
 
Double_t fWeight
 Tree weight (see TTree::SetWeight) More...
 
- Protected Attributes inherited from TSelector
EAbort fAbort
 Abort status. More...
 
TListfInput
 List of objects available during processing. More...
 
TObjectfObject
 ! Current object if processing object (vs. TTree) More...
 
TString fOption
 Option given to TTree::Process. More...
 
TSelectorListfOutput
 ! List of objects created during processing More...
 
Long64_t fStatus
 Selector status. More...
 

Private Member Functions

 TSelectorDraw (const TSelectorDraw &)
 
TSelectorDrawoperator= (const TSelectorDraw &)
 

Additional Inherited Members

- Public Types inherited from TSelector
enum  EAbort { kContinue, kAbortProcess, kAbortFile }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Static Public Member Functions inherited from TSelector
static TSelectorGetSelector (const char *filename)
 The code in filename is loaded (interpreted or compiled, see below), filename must contain a valid class implementation derived from TSelector. More...
 
static Bool_t IsStandardDraw (const char *selec)
 Find out if this is a standard selection used for Draw actions (either TSelectorDraw, TProofDraw or deriving from them). More...
 
- Static Public Member Functions inherited from TObject
static Longptr_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 

#include <TSelectorDraw.h>

Inheritance diagram for TSelectorDraw:
[legend]

Member Enumeration Documentation

◆ EStatusBits

Enumerator
kWarn 

Definition at line 36 of file TSelectorDraw.h.

Constructor & Destructor Documentation

◆ TSelectorDraw() [1/2]

TSelectorDraw::TSelectorDraw ( const TSelectorDraw )
private

◆ TSelectorDraw() [2/2]

TSelectorDraw::TSelectorDraw ( )

Default selector constructor.

Definition at line 47 of file TSelectorDraw.cxx.

◆ ~TSelectorDraw()

TSelectorDraw::~TSelectorDraw ( )
virtual

Selector destructor.

Definition at line 86 of file TSelectorDraw.cxx.

Member Function Documentation

◆ Begin()

void TSelectorDraw::Begin ( TTree tree)
virtual

Called every time a loop on the tree(s) starts.

Reimplemented from TSelector.

Definition at line 105 of file TSelectorDraw.cxx.

◆ ClearFormula()

void TSelectorDraw::ClearFormula ( )
protectedvirtual

Delete internal buffers.

Definition at line 941 of file TSelectorDraw.cxx.

◆ CompileVariables()

Bool_t TSelectorDraw::CompileVariables ( const char *  varexp = "",
const char *  selection = "" 
)
protectedvirtual

Compile input variables and selection expression.

varexp is an expression of the general form e1:e2:e3 where e1,etc is a formula referencing a combination of the columns

Example:

varexp = x  simplest case: draw a 1-Dim distribution of column named x
       = sqrt(x)         : draw distribution of sqrt(x)
       = x*y/z
       = y:sqrt(x) 2-Dim distribution of y versus sqrt(x)

selection is an expression with a combination of the columns

Example:

selection = "x<y && sqrt(z)>3.2"

in a selection all the C++ operators are authorized

Return kFALSE if any of the variable is not compilable.

Definition at line 976 of file TSelectorDraw.cxx.

◆ GetAction()

virtual Int_t TSelectorDraw::GetAction ( ) const
inlinevirtual

Definition at line 80 of file TSelectorDraw.h.

◆ GetCleanElist()

virtual Bool_t TSelectorDraw::GetCleanElist ( ) const
inlinevirtual

Definition at line 81 of file TSelectorDraw.h.

◆ GetDimension()

virtual Int_t TSelectorDraw::GetDimension ( ) const
inlinevirtual

Definition at line 82 of file TSelectorDraw.h.

◆ GetDrawFlag()

virtual Long64_t TSelectorDraw::GetDrawFlag ( ) const
inlinevirtual

Definition at line 83 of file TSelectorDraw.h.

◆ GetMultiplicity()

Int_t TSelectorDraw::GetMultiplicity ( ) const
inline

Definition at line 85 of file TSelectorDraw.h.

◆ GetNfill()

virtual Int_t TSelectorDraw::GetNfill ( ) const
inlinevirtual

Definition at line 86 of file TSelectorDraw.h.

◆ GetObject()

TObject* TSelectorDraw::GetObject ( ) const
inline

Definition at line 84 of file TSelectorDraw.h.

◆ GetOldHistogram()

TH1* TSelectorDraw::GetOldHistogram ( ) const
inline

Definition at line 87 of file TSelectorDraw.h.

◆ GetSelect()

TTreeFormula* TSelectorDraw::GetSelect ( ) const
inline

Definition at line 88 of file TSelectorDraw.h.

◆ GetSelectedRows()

virtual Long64_t TSelectorDraw::GetSelectedRows ( ) const
inlinevirtual

Definition at line 89 of file TSelectorDraw.h.

◆ GetTree()

TTree* TSelectorDraw::GetTree ( ) const
inline

Definition at line 90 of file TSelectorDraw.h.

◆ GetV1()

virtual Double_t* TSelectorDraw::GetV1 ( ) const
inlinevirtual

See TSelectorDraw::GetVal.

Definition at line 102 of file TSelectorDraw.h.

◆ GetV2()

virtual Double_t* TSelectorDraw::GetV2 ( ) const
inlinevirtual

See TSelectorDraw::GetVal.

Definition at line 104 of file TSelectorDraw.h.

◆ GetV3()

virtual Double_t* TSelectorDraw::GetV3 ( ) const
inlinevirtual

See TSelectorDraw::GetVal.

Definition at line 106 of file TSelectorDraw.h.

◆ GetV4()

virtual Double_t* TSelectorDraw::GetV4 ( ) const
inlinevirtual

See TSelectorDraw::GetVal.

Definition at line 108 of file TSelectorDraw.h.

◆ GetVal()

Double_t * TSelectorDraw::GetVal ( Int_t  i) const
virtual

Return the last values corresponding to the i-th component of the formula being processed (where the component are ':' separated).

The actual number of entries is:

GetSelectedRows() % tree->GetEstimate()

Note GetSelectedRows currently returns the actual number of values plotted and thus if the formula contains arrays, this number might be greater than the number of entries in the trees.

By default TTree::Draw creates the arrays obtained with all GetVal and GetW with a length corresponding to the parameter fEstimate. By default fEstimate=10000 and can be modified via TTree::SetEstimate. A possible recipe is to do

tree->SetEstimate(tree->GetEntries());

You must call SetEstimate if the expected number of selected rows is greater than 10000.

See TTree::Draw for additional details.

Definition at line 1069 of file TSelectorDraw.cxx.

◆ GetVar()

TTreeFormula * TSelectorDraw::GetVar ( Int_t  i) const

Return the TTreeFormula corresponding to the i-th component of the request formula (where the component are ':' separated).

Definition at line 1081 of file TSelectorDraw.cxx.

◆ GetVar1()

TTreeFormula* TSelectorDraw::GetVar1 ( ) const
inline

See TSelectorDraw::GetVar.

Definition at line 93 of file TSelectorDraw.h.

◆ GetVar2()

TTreeFormula* TSelectorDraw::GetVar2 ( ) const
inline

See TSelectorDraw::GetVar.

Definition at line 95 of file TSelectorDraw.h.

◆ GetVar3()

TTreeFormula* TSelectorDraw::GetVar3 ( ) const
inline

See TSelectorDraw::GetVar.

Definition at line 97 of file TSelectorDraw.h.

◆ GetVar4()

TTreeFormula* TSelectorDraw::GetVar4 ( ) const
inline

See TSelectorDraw::GetVar.

Definition at line 99 of file TSelectorDraw.h.

◆ GetW()

virtual Double_t* TSelectorDraw::GetW ( ) const
inlinevirtual

Definition at line 109 of file TSelectorDraw.h.

◆ InitArrays()

void TSelectorDraw::InitArrays ( Int_t  newsize)
protectedvirtual

Initialization of the primitive type arrays if the new size is bigger than the available space.

Definition at line 1092 of file TSelectorDraw.cxx.

◆ Notify()

Bool_t TSelectorDraw::Notify ( )
virtual

This function is called at the first entry of a new tree in a chain.

Reimplemented from TSelector.

Definition at line 1154 of file TSelectorDraw.cxx.

◆ operator=()

TSelectorDraw& TSelectorDraw::operator= ( const TSelectorDraw )
private

◆ Process()

virtual Bool_t TSelectorDraw::Process ( Long64_t  )
inlinevirtual

The Process() function is called for each entry in the tree (or possibly keyed object in the case of PROOF) to be processed.

The entry argument specifies which entry in the currently loaded tree is to be processed. It can be passed to either t01::GetEntry() or TBranch::GetEntry() to read either all or the required parts of the data. When processing keyed objects with PROOF, the object is already loaded and is available via the fObject pointer.

This function should contain the "body" of the analysis. It can contain simple or elaborate selection criteria, run algorithms on the data of the event and typically fill histograms.

The processing can be stopped by calling Abort().

Use fStatus to set the return value of TTree::Process().

The return value is currently not used.

WARNING when a selector is used with a TChain, you must use the pointer to the current TTree to call GetEntry(entry). The entry is always the local entry number in the current tree. Assuming that fChain is the pointer to the TChain being processed, use: fChain->GetTree()->GetEntry(entry).

Reimplemented from TSelector.

Reimplemented in ROOT::Experimental::REveSelectorToEventList, and TEveSelectorToEventList.

Definition at line 111 of file TSelectorDraw.h.

◆ ProcessFill()

void TSelectorDraw::ProcessFill ( Long64_t  entry)
virtual

Called in the entry loop for all entries accepted by Select.

Reimplemented from TSelector.

Definition at line 1169 of file TSelectorDraw.cxx.

◆ ProcessFillMultiple()

void TSelectorDraw::ProcessFillMultiple ( Long64_t  entry)
virtual

Called in the entry loop for all entries accepted by Select.

Complex case with multiplicity.

Definition at line 1204 of file TSelectorDraw.cxx.

◆ ProcessFillObject()

void TSelectorDraw::ProcessFillObject ( Long64_t  entry)
virtual

Called in the entry loop for all entries accepted by Select.

Case where the only variable returns an object (or pointer to).

Definition at line 1277 of file TSelectorDraw.cxx.

◆ SetEstimate()

void TSelectorDraw::SetEstimate ( Long64_t  n)
virtual

Set number of entries to estimate variable limits.

Definition at line 1343 of file TSelectorDraw.cxx.

◆ SplitNames()

UInt_t TSelectorDraw::SplitNames ( const TString varexp,
std::vector< TString > &  names 
)
virtual

Build Index array for names in varexp.

This will allocated a C style array of TString and Ints

Definition at line 1125 of file TSelectorDraw.cxx.

◆ TakeAction()

void TSelectorDraw::TakeAction ( )
virtual

Execute action for object obj fNfill times.

Reimplemented in ROOT::Experimental::REvePointSelector, and TEvePointSelector.

Definition at line 1357 of file TSelectorDraw.cxx.

◆ TakeEstimate()

void TSelectorDraw::TakeEstimate ( )
virtual

Estimate limits for 1-D, 2-D or 3-D objects.

Definition at line 1547 of file TSelectorDraw.cxx.

◆ Terminate()

void TSelectorDraw::Terminate ( void  )
virtual

Called at the end of a loop on a TTree.

Reimplemented from TSelector.

Definition at line 1819 of file TSelectorDraw.cxx.

Member Data Documentation

◆ fAction

Int_t TSelectorDraw::fAction
protected

! Action type

Definition at line 45 of file TSelectorDraw.h.

◆ fCleanElist

Bool_t TSelectorDraw::fCleanElist
protected

True if original Tree elist must be saved.

Definition at line 62 of file TSelectorDraw.h.

◆ fCurrentSubEntry

Long64_t TSelectorDraw::fCurrentSubEntry
protected

Current subentry when fSelectMultiple is true. Used to fill TEntryListArray.

Definition at line 64 of file TSelectorDraw.h.

◆ fDimension

Int_t TSelectorDraw::fDimension
protected

Dimension of the current expression.

Definition at line 49 of file TSelectorDraw.h.

◆ fDraw

Long64_t TSelectorDraw::fDraw
protected

! Last entry loop number when object was drawn

Definition at line 46 of file TSelectorDraw.h.

◆ fForceRead

Int_t TSelectorDraw::fForceRead
protected

Force Read flag.

Definition at line 52 of file TSelectorDraw.h.

◆ fManager

TTreeFormulaManager* TSelectorDraw::fManager
protected

Pointer to the formula manager.

Definition at line 41 of file TSelectorDraw.h.

◆ fMultiplicity

Int_t TSelectorDraw::fMultiplicity
protected

Indicator of the variability of the size of entries.

Definition at line 48 of file TSelectorDraw.h.

◆ fNbins

Int_t* TSelectorDraw::fNbins
protected

![fDimension] Number of bins per dimension

Definition at line 53 of file TSelectorDraw.h.

◆ fNfill

Int_t TSelectorDraw::fNfill
protected

! Total number of histogram fills

Definition at line 47 of file TSelectorDraw.h.

◆ fObjEval

Bool_t TSelectorDraw::fObjEval
protected

True if fVar1 returns an object (or pointer to).

Definition at line 63 of file TSelectorDraw.h.

◆ fOldEstimate

Long64_t TSelectorDraw::fOldEstimate
protected

Value of Tree fEstimate when selector is called.

Definition at line 51 of file TSelectorDraw.h.

◆ fOldHistogram

TH1* TSelectorDraw::fOldHistogram
protected

! Pointer to previously used histogram

Definition at line 44 of file TSelectorDraw.h.

◆ fSelect

TTreeFormula* TSelectorDraw::fSelect
protected

Pointer to selection formula.

Definition at line 40 of file TSelectorDraw.h.

◆ fSelectedRows

Long64_t TSelectorDraw::fSelectedRows
protected

Number of selected entries.

Definition at line 50 of file TSelectorDraw.h.

◆ fSelectMultiple

Bool_t TSelectorDraw::fSelectMultiple
protected

True if selection has a variable index.

Definition at line 61 of file TSelectorDraw.h.

◆ fTree

TTree* TSelectorDraw::fTree
protected

Pointer to current Tree.

Definition at line 38 of file TSelectorDraw.h.

◆ fTreeElist

TObject* TSelectorDraw::fTreeElist
protected

Pointer to Tree Event list.

Definition at line 42 of file TSelectorDraw.h.

◆ fTreeElistArray

TEntryListArray* TSelectorDraw::fTreeElistArray
protected

! Pointer to Tree Event list array

Definition at line 43 of file TSelectorDraw.h.

◆ fVal

Double_t** TSelectorDraw::fVal
protected

![fSelectedRows][fDimension] Local buffer for the variables

Definition at line 57 of file TSelectorDraw.h.

◆ fValSize

Int_t TSelectorDraw::fValSize
protected

Definition at line 58 of file TSelectorDraw.h.

◆ fVar

TTreeFormula** TSelectorDraw::fVar
protected

![fDimension] Array of pointers to variables formula

Definition at line 39 of file TSelectorDraw.h.

◆ fVarMultiple

Bool_t* TSelectorDraw::fVarMultiple
protected

![fDimension] True if fVar[i] has a variable index

Definition at line 60 of file TSelectorDraw.h.

◆ fVmax

Double_t* TSelectorDraw::fVmax
protected

![fDimension] Maxima of varexp columns

Definition at line 55 of file TSelectorDraw.h.

◆ fVmin

Double_t* TSelectorDraw::fVmin
protected

![fDimension] Minima of varexp columns

Definition at line 54 of file TSelectorDraw.h.

◆ fW

Double_t* TSelectorDraw::fW
protected

![fSelectedRows]Local buffer for weights

Definition at line 59 of file TSelectorDraw.h.

◆ fWeight

Double_t TSelectorDraw::fWeight
protected

Tree weight (see TTree::SetWeight)

Definition at line 56 of file TSelectorDraw.h.

Libraries for TSelectorDraw:
[legend]

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