A TEventList object is a list of selected events (entries) in a TTree.
A TEventList is automatically generated by TTree::Draw: example
In this example, a TEventList object named "elist1" will be generated. (Previous contents are overwritten).
In this example, selected entries are added to the list.
The TEventList object is added to the list of objects in the current directory.
Use TTree:SetEventList(TEventList *list) to inform TTree that you want to use the list as input. The following code gets a pointer to the TEventList object created in the above commands:
Definition at line 31 of file TEventList.h.
Public Member Functions | |
TEventList () | |
Default constructor for a EventList. | |
TEventList (const char *name, const char *title="", Int_t initsize=0, Int_t delta=0) | |
Create a EventList. | |
TEventList (const TEventList &list) | |
Copy constructor. | |
~TEventList () override | |
Default destructor for a EventList. | |
virtual void | Add (const TEventList *list) |
Merge contents of alist with this list. | |
void | Clear (Option_t *option="") override |
virtual Bool_t | Contains (Long64_t entry) |
Return TRUE if list contains entry. | |
virtual Bool_t | ContainsRange (Long64_t entrymin, Long64_t entrymax) |
Return TRUE if list contains entries from entrymin to entrymax included. | |
virtual void | DirectoryAutoAdd (TDirectory *) |
Called by TKey and others to automatically add us to a directory when we are read from a file. | |
virtual void | Enter (Long64_t entry) |
Enter element entry into the list. | |
TDirectory * | GetDirectory () const |
virtual Long64_t | GetEntry (Int_t index) const |
Return value of entry at index in the list. | |
virtual Int_t | GetIndex (Long64_t entry) const |
Return index in the list of element with value entry array is supposed to be sorted prior to this call. | |
virtual Long64_t * | GetList () const |
virtual Int_t | GetN () const |
virtual Bool_t | GetReapplyCut () const |
virtual Int_t | GetSize () const |
virtual void | Intersect (const TEventList *list) |
Remove elements from this list that are NOT present in alist. | |
TClass * | IsA () const override |
virtual Int_t | Merge (TCollection *list) |
Merge entries in all the TEventList in the collection in this event list. | |
TEventList & | operator= (const TEventList &list) |
Assingment. | |
void | Print (Option_t *option="") const override |
Print contents of this list. | |
virtual void | Reset (Option_t *option="") |
Reset number of entries in event list. | |
virtual void | Resize (Int_t delta=0) |
Resize list by delta entries. | |
virtual void | SetDelta (Int_t delta=100) |
virtual void | SetDirectory (TDirectory *dir) |
Remove reference to this EventList from current directory and add reference to new directory dir. | |
void | SetName (const char *name) override |
Change the name of this TEventList. | |
virtual void | SetReapplyCut (Bool_t apply=kFALSE) |
virtual void | Sort () |
Sort list entries in increasing order. | |
void | Streamer (TBuffer &) override |
Stream an object of class TEventList. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
virtual void | Subtract (const TEventList *list) |
Remove elements from this list that are present in alist. | |
Public Member Functions inherited from TNamed | |
TNamed () | |
TNamed (const char *name, const char *title) | |
TNamed (const TNamed &named) | |
TNamed copy ctor. | |
TNamed (const TString &name, const TString &title) | |
virtual | ~TNamed () |
TNamed destructor. | |
void | Clear (Option_t *option="") override |
Set name and title to empty strings (""). | |
TObject * | Clone (const char *newname="") const override |
Make a clone of an object using the Streamer facility. | |
Int_t | Compare (const TObject *obj) const override |
Compare two TNamed objects. | |
void | Copy (TObject &named) const override |
Copy this to obj. | |
virtual void | FillBuffer (char *&buffer) |
Encode TNamed into output buffer. | |
const char * | GetName () const override |
Returns name of object. | |
const char * | GetTitle () const override |
Returns title of object. | |
ULong_t | Hash () const override |
Return hash value for this object. | |
TClass * | IsA () const override |
Bool_t | IsSortable () const override |
void | ls (Option_t *option="") const override |
List TNamed name and title. | |
TNamed & | operator= (const TNamed &rhs) |
TNamed assignment operator. | |
void | Print (Option_t *option="") const override |
Print TNamed name and title. | |
virtual void | SetNameTitle (const char *name, const char *title) |
Set all the TNamed parameters (name and title). | |
virtual void | SetTitle (const char *title="") |
Set the title of the TNamed. | |
virtual Int_t | Sizeof () const |
Return size of the TNamed part of the TObject. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
Public Member Functions inherited from TObject | |
TObject () | |
TObject constructor. | |
TObject (const TObject &object) | |
TObject copy ctor. | |
virtual | ~TObject () |
TObject destructor. | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. | |
virtual void | Delete (Option_t *option="") |
Delete this object. | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Computes distance from point (px,py) to the object. | |
virtual void | Draw (Option_t *option="") |
Default Draw method for all objects. | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1) . | |
virtual void | Dump () const |
Dump contents of object on stdout. | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. | |
virtual void | Execute (const char *method, const char *params, Int_t *error=nullptr) |
Execute method on this object with the given parameter string, e.g. | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr) |
Execute method on this object with parameters stored in the TObjArray. | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to an event at (px,py). | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. | |
virtual const char * | GetIconName () const |
Returns mime type name of object. | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). | |
virtual Option_t * | GetOption () const |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. | |
void | InvertBit (UInt_t f) |
Bool_t | IsDestructed () const |
IsDestructed. | |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification (the base implementation is no-op). | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. | |
void | operator delete (void *ptr) |
Operator delete. | |
void | operator delete (void *ptr, void *vp) |
Only called by placement new when throwing an exception. | |
void | operator delete[] (void *ptr) |
Operator delete []. | |
void | operator delete[] (void *ptr, void *vp) |
Only called by placement new[] when throwing an exception. | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. | |
virtual void | Paint (Option_t *option="") |
This method must be overridden if a class wants to paint itself. | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. | |
virtual void | RecursiveRemove (TObject *obj) |
Recursively remove this object from a list. | |
void | ResetBit (UInt_t f) |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save a 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 | SetUniqueID (UInt_t uid) |
Set the unique object id. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. | |
Static Public Member Functions | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
Static Public Member Functions inherited from TNamed | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
Static Public Member Functions inherited from TObject | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static Longptr_t | GetDtorOnly () |
Return destructor only flag. | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. | |
Protected Attributes | |
Int_t | fDelta |
Increment size. | |
TDirectory * | fDirectory |
! Pointer to directory holding this tree | |
Long64_t * | fList |
[fN]Array of elements | |
Int_t | fN |
Number of elements in the list. | |
Bool_t | fReapply |
If true, TTree::Draw will 'reapply' the original cut. | |
Int_t | fSize |
Size of array. | |
Protected Attributes inherited from TNamed | |
TString | fName |
TString | fTitle |
Friends | |
TEventList | operator* (const TEventList &list1, const TEventList &list2) |
Intersection. | |
TEventList | operator+ (const TEventList &list1, const TEventList &list2) |
Addition. | |
TEventList | operator- (const TEventList &list1, const TEventList &list2) |
Subtraction. | |
Additional Inherited Members | |
Public Types inherited from TObject | |
enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) } |
enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) } |
enum | EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) } |
Protected Types inherited from TObject | |
enum | { kOnlyPrepStep = (1ULL << ( 3 )) } |
Protected Member Functions inherited from TObject | |
virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). | |
void | MakeZombie () |
#include <TEventList.h>
TEventList::TEventList | ( | ) |
Default constructor for a EventList.
Definition at line 61 of file TEventList.cxx.
TEventList::TEventList | ( | const char * | name, |
const char * | title = "" , |
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Int_t | initsize = 0 , |
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Int_t | delta = 0 |
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) |
Create a EventList.
This Eventlist is added to the list of objects in current directory.
Definition at line 76 of file TEventList.cxx.
TEventList::TEventList | ( | const TEventList & | list | ) |
Copy constructor.
Definition at line 92 of file TEventList.cxx.
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override |
Default destructor for a EventList.
Definition at line 107 of file TEventList.cxx.
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virtual |
Merge contents of alist with this list.
Both alist and this list are assumed to be sorted prior to this call
Definition at line 119 of file TEventList.cxx.
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static |
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inlinestaticconstexpr |
Definition at line 77 of file TEventList.h.
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inlineoverridevirtual |
Reimplemented from TObject.
Definition at line 47 of file TEventList.h.
Return TRUE if list contains entry.
Definition at line 165 of file TEventList.cxx.
Return TRUE if list contains entries from entrymin to entrymax included.
Definition at line 174 of file TEventList.cxx.
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inlinestatic |
Definition at line 77 of file TEventList.h.
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virtual |
Called by TKey and others to automatically add us to a directory when we are read from a file.
Definition at line 186 of file TEventList.cxx.
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virtual |
Enter element entry into the list.
Definition at line 194 of file TEventList.cxx.
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inline |
Definition at line 52 of file TEventList.h.
Return value of entry at index in the list.
Return -1 if index is not in the list range.
Definition at line 225 of file TEventList.cxx.
Return index in the list of element with value entry array is supposed to be sorted prior to this call.
If match is found, function returns position of element. If no match found, function returns -1.
Definition at line 238 of file TEventList.cxx.
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inlinevirtual |
Definition at line 55 of file TEventList.h.
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inlinevirtual |
Definition at line 56 of file TEventList.h.
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inlinevirtual |
Definition at line 57 of file TEventList.h.
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inlinevirtual |
Definition at line 58 of file TEventList.h.
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virtual |
Remove elements from this list that are NOT present in alist.
Definition at line 255 of file TEventList.cxx.
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inlineoverridevirtual |
Reimplemented from TObject.
Definition at line 77 of file TEventList.h.
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virtual |
Merge entries in all the TEventList in the collection in this event list.
Definition at line 282 of file TEventList.cxx.
TEventList & TEventList::operator= | ( | const TEventList & | list | ) |
Assingment.
Definition at line 460 of file TEventList.cxx.
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overridevirtual |
Print contents of this list.
Reimplemented from TObject.
Definition at line 305 of file TEventList.cxx.
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virtual |
Reset number of entries in event list.
Definition at line 331 of file TEventList.cxx.
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virtual |
Resize list by delta entries.
Definition at line 339 of file TEventList.cxx.
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inlinevirtual |
Definition at line 64 of file TEventList.h.
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virtual |
Remove reference to this EventList from current directory and add reference to new directory dir.
dir can be 0 in which case the list does not belong to any directory.
Definition at line 354 of file TEventList.cxx.
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overridevirtual |
Change the name of this TEventList.
Reimplemented from TNamed.
Definition at line 365 of file TEventList.cxx.
Definition at line 67 of file TEventList.h.
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virtual |
Sort list entries in increasing order.
Definition at line 377 of file TEventList.cxx.
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overridevirtual |
Stream an object of class TEventList.
Reimplemented from TObject.
Definition at line 398 of file TEventList.cxx.
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inline |
Definition at line 77 of file TEventList.h.
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virtual |
Remove elements from this list that are present in alist.
Definition at line 433 of file TEventList.cxx.
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friend |
Intersection.
Definition at line 500 of file TEventList.cxx.
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friend |
Addition.
Definition at line 480 of file TEventList.cxx.
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friend |
Subtraction.
Definition at line 490 of file TEventList.cxx.
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protected |
Increment size.
Definition at line 36 of file TEventList.h.
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protected |
! Pointer to directory holding this tree
Definition at line 39 of file TEventList.h.
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protected |
[fN]Array of elements
Definition at line 38 of file TEventList.h.
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protected |
Number of elements in the list.
Definition at line 34 of file TEventList.h.
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protected |
If true, TTree::Draw will 'reapply' the original cut.
Definition at line 37 of file TEventList.h.
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protected |
Size of array.
Definition at line 35 of file TEventList.h.