A specialized TSelector for TTree::Draw.
Definition at line 33 of file TSelectorDraw.h.
Public Member Functions | |
TSelectorDraw () | |
Default selector constructor. | |
virtual | ~TSelectorDraw () |
Selector destructor. | |
virtual void | Begin (TTree *tree) |
Called every time a loop on the tree(s) starts. | |
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 |
TObject * | GetObject () const |
TH1 * | GetOldHistogram () const |
TTreeFormula * | GetSelect () const |
virtual Long64_t | GetSelectedRows () const |
TTree * | GetTree () const |
virtual Double_t * | GetV1 () const |
See TSelectorDraw::GetVal. | |
virtual Double_t * | GetV2 () const |
See TSelectorDraw::GetVal. | |
virtual Double_t * | GetV3 () const |
See TSelectorDraw::GetVal. | |
virtual Double_t * | GetV4 () const |
See TSelectorDraw::GetVal. | |
virtual Double_t * | GetVal (Int_t i) const |
Return the last values corresponding to the i-th component of the formula being processed (where the component are ':' separated). | |
TTreeFormula * | GetVar (Int_t i) const |
Return the TTreeFormula corresponding to the i-th component of the request formula (where the component are ':' separated). | |
TTreeFormula * | GetVar1 () const |
See TSelectorDraw::GetVar. | |
TTreeFormula * | GetVar2 () const |
See TSelectorDraw::GetVar. | |
TTreeFormula * | GetVar3 () const |
See TSelectorDraw::GetVar. | |
TTreeFormula * | GetVar4 () const |
See TSelectorDraw::GetVar. | |
virtual Double_t * | GetW () const |
virtual Bool_t | Notify () |
This function is called at the first entry of a new tree in a chain. | |
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. | |
virtual void | ProcessFill (Long64_t entry) |
Called in the entry loop for all entries accepted by Select. | |
virtual void | ProcessFillMultiple (Long64_t entry) |
Called in the entry loop for all entries accepted by Select. | |
virtual void | ProcessFillObject (Long64_t entry) |
Called in the entry loop for all entries accepted by Select. | |
virtual void | SetEstimate (Long64_t n) |
Set number of entries to estimate variable limits. | |
virtual UInt_t | SplitNames (const TString &varexp, std::vector< TString > &names) |
Build Index array for names in varexp. | |
virtual void | TakeAction () |
Execute action for object obj fNfill times. | |
virtual void | TakeEstimate () |
Estimate limits for 1-D, 2-D or 3-D objects. | |
virtual void | Terminate () |
Called at the end of a loop on a TTree. | |
Public Member Functions inherited from TSelector | |
TSelector () | |
Default selector ctor. | |
virtual | ~TSelector () |
Selector destructor. | |
virtual void | Abort (const char *why, EAbort what=kAbortProcess) |
Abort processing. | |
virtual EAbort | GetAbort () const |
virtual Int_t | GetEntry (Long64_t, Int_t=0) |
virtual TList * | GetInputList () const |
virtual const char * | GetOption () const |
virtual TList * | GetOutputList () const |
virtual Long64_t | GetStatus () const |
virtual void | ImportOutput (TList *output) |
Imports the content of 'output' in the internal output list. | |
virtual void | Init (TTree *) |
virtual Bool_t | ProcessCut (Long64_t) |
This method is called before processing entry. | |
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. | |
TObject (const TObject &object) | |
TObject copy ctor. | |
virtual | ~TObject () |
TObject destructor. | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. | |
virtual void | Clear (Option_t *="") |
virtual TObject * | Clone (const char *newname="") const |
Make a clone of an object using the Streamer facility. | |
virtual Int_t | Compare (const TObject *obj) const |
Compare abstract method. | |
virtual void | Copy (TObject &object) const |
Copy this to obj. | |
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 for instance with: gROOT->SetSelectedPad(gPad) . | |
virtual void | Dump () const |
Dump contents of object on stdout. | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. | |
virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
Execute method on this object with the given parameter string, e.g. | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
Execute method on this object with parameters stored in the TObjArray. | |
virtual void | 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 const char * | GetName () const |
Returns name of object. | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). | |
virtual const char * | GetTitle () const |
Returns title of object. | |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. | |
virtual ULong_t | Hash () const |
Return hash value for this object. | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. | |
void | InvertBit (UInt_t f) |
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 |
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. | |
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). | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. | |
void | operator delete (void *ptr) |
Operator delete. | |
void | operator delete[] (void *ptr) |
Operator delete []. | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. | |
virtual void | 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 void | Print (Option_t *option="") const |
This method must be overridden when a class wants to print itself. | |
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. | |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. | |
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. | |
virtual Bool_t | CompileVariables (const char *varexp="", const char *selection="") |
Compile input variables and selection expression. | |
virtual void | InitArrays (Int_t newsize) |
Initialization of the primitive type arrays if the new size is bigger than the available space. | |
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 () |
Protected Attributes | |
Int_t | fAction |
! Action type | |
Bool_t | fCleanElist |
True if original Tree elist must be saved. | |
Long64_t | fCurrentSubEntry |
Current subentry when fSelectMultiple is true. Used to fill TEntryListArray. | |
Int_t | fDimension |
Dimension of the current expression. | |
Long64_t | fDraw |
! Last entry loop number when object was drawn | |
Int_t | fForceRead |
Force Read flag. | |
TTreeFormulaManager * | fManager |
Pointer to the formula manager. | |
Int_t | fMultiplicity |
Indicator of the variability of the size of entries. | |
Int_t * | fNbins |
![fDimension] Number of bins per dimension | |
Int_t | fNfill |
! Total number of histogram fills | |
Bool_t | fObjEval |
True if fVar1 returns an object (or pointer to). | |
Long64_t | fOldEstimate |
Value of Tree fEstimate when selector is called. | |
TH1 * | fOldHistogram |
! Pointer to previously used histogram | |
TTreeFormula * | fSelect |
Pointer to selection formula. | |
Long64_t | fSelectedRows |
Number of selected entries. | |
Bool_t | fSelectMultiple |
True if selection has a variable index. | |
TTree * | fTree |
Pointer to current Tree. | |
TObject * | fTreeElist |
Pointer to Tree Event list. | |
TEntryListArray * | fTreeElistArray |
! Pointer to Tree Event list array | |
Double_t ** | fVal |
![fSelectedRows][fDimension] Local buffer for the variables | |
Int_t | fValSize |
TTreeFormula ** | fVar |
![fDimension] Array of pointers to variables formula | |
Bool_t * | fVarMultiple |
![fDimension] True if fVar[i] has a variable index | |
Double_t * | fVmax |
![fDimension] Maxima of varexp columns | |
Double_t * | fVmin |
![fDimension] Minima of varexp columns | |
Double_t * | fW |
![fSelectedRows]Local buffer for weights | |
Double_t | fWeight |
Tree weight (see TTree::SetWeight) | |
Protected Attributes inherited from TSelector | |
EAbort | fAbort |
Abort status. | |
TList * | fInput |
List of objects available during processing. | |
TObject * | fObject |
! Current object if processing object (vs. TTree) | |
TString | fOption |
Option given to TTree::Process. | |
TSelectorList * | fOutput |
! List of objects created during processing | |
Long64_t | fStatus |
Selector status. | |
Private Member Functions | |
TSelectorDraw (const TSelectorDraw &) | |
TSelectorDraw & | operator= (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 TSelector * | GetSelector (const char *filename) |
The code in filename is loaded (interpreted or compiled, see below), filename must contain a valid class implementation derived from TSelector. | |
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). | |
Static Public Member Functions inherited from TObject | |
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. | |
#include <TSelectorDraw.h>
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Enumerator | |
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kWarn |
Definition at line 36 of file TSelectorDraw.h.
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TSelectorDraw::TSelectorDraw | ( | ) |
Default selector constructor.
Definition at line 47 of file TSelectorDraw.cxx.
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Selector destructor.
Definition at line 86 of file TSelectorDraw.cxx.
Called every time a loop on the tree(s) starts.
Reimplemented from TSelector.
Definition at line 105 of file TSelectorDraw.cxx.
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Delete internal buffers.
Definition at line 941 of file TSelectorDraw.cxx.
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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.
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Definition at line 80 of file TSelectorDraw.h.
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Definition at line 81 of file TSelectorDraw.h.
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Definition at line 82 of file TSelectorDraw.h.
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Definition at line 83 of file TSelectorDraw.h.
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Definition at line 85 of file TSelectorDraw.h.
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Definition at line 86 of file TSelectorDraw.h.
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Definition at line 84 of file TSelectorDraw.h.
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Definition at line 87 of file TSelectorDraw.h.
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Definition at line 88 of file TSelectorDraw.h.
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Definition at line 89 of file TSelectorDraw.h.
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Definition at line 90 of file TSelectorDraw.h.
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Definition at line 102 of file TSelectorDraw.h.
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Definition at line 104 of file TSelectorDraw.h.
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Definition at line 106 of file TSelectorDraw.h.
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Definition at line 108 of file TSelectorDraw.h.
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.
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.
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Definition at line 93 of file TSelectorDraw.h.
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Definition at line 95 of file TSelectorDraw.h.
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Definition at line 97 of file TSelectorDraw.h.
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Definition at line 99 of file TSelectorDraw.h.
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Definition at line 109 of file TSelectorDraw.h.
Initialization of the primitive type arrays if the new size is bigger than the available space.
Definition at line 1092 of file TSelectorDraw.cxx.
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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.
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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)
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Reimplemented from TSelector.
Reimplemented in TEveSelectorToEventList, and ROOT::Experimental::REveSelectorToEventList.
Definition at line 111 of file TSelectorDraw.h.
Called in the entry loop for all entries accepted by Select.
Reimplemented from TSelector.
Definition at line 1169 of file TSelectorDraw.cxx.
Called in the entry loop for all entries accepted by Select.
Complex case with multiplicity.
Definition at line 1204 of file TSelectorDraw.cxx.
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.
Set number of entries to estimate variable limits.
Definition at line 1343 of file TSelectorDraw.cxx.
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.
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Execute action for object obj fNfill times.
Reimplemented in TEvePointSelector, and ROOT::Experimental::REvePointSelector.
Definition at line 1357 of file TSelectorDraw.cxx.
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Estimate limits for 1-D, 2-D or 3-D objects.
Definition at line 1547 of file TSelectorDraw.cxx.
Called at the end of a loop on a TTree.
Reimplemented from TSelector.
Definition at line 1819 of file TSelectorDraw.cxx.
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! Action type
Definition at line 45 of file TSelectorDraw.h.
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True if original Tree elist must be saved.
Definition at line 62 of file TSelectorDraw.h.
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Current subentry when fSelectMultiple is true. Used to fill TEntryListArray.
Definition at line 64 of file TSelectorDraw.h.
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Dimension of the current expression.
Definition at line 49 of file TSelectorDraw.h.
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! Last entry loop number when object was drawn
Definition at line 46 of file TSelectorDraw.h.
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Force Read flag.
Definition at line 52 of file TSelectorDraw.h.
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Pointer to the formula manager.
Definition at line 41 of file TSelectorDraw.h.
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Indicator of the variability of the size of entries.
Definition at line 48 of file TSelectorDraw.h.
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![fDimension] Number of bins per dimension
Definition at line 53 of file TSelectorDraw.h.
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! Total number of histogram fills
Definition at line 47 of file TSelectorDraw.h.
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True if fVar1 returns an object (or pointer to).
Definition at line 63 of file TSelectorDraw.h.
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Value of Tree fEstimate when selector is called.
Definition at line 51 of file TSelectorDraw.h.
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! Pointer to previously used histogram
Definition at line 44 of file TSelectorDraw.h.
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Pointer to selection formula.
Definition at line 40 of file TSelectorDraw.h.
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Number of selected entries.
Definition at line 50 of file TSelectorDraw.h.
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True if selection has a variable index.
Definition at line 61 of file TSelectorDraw.h.
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Pointer to current Tree.
Definition at line 38 of file TSelectorDraw.h.
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Pointer to Tree Event list.
Definition at line 42 of file TSelectorDraw.h.
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! Pointer to Tree Event list array
Definition at line 43 of file TSelectorDraw.h.
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![fSelectedRows][fDimension] Local buffer for the variables
Definition at line 57 of file TSelectorDraw.h.
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Definition at line 58 of file TSelectorDraw.h.
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![fDimension] Array of pointers to variables formula
Definition at line 39 of file TSelectorDraw.h.
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![fDimension] True if fVar[i] has a variable index
Definition at line 60 of file TSelectorDraw.h.
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![fDimension] Maxima of varexp columns
Definition at line 55 of file TSelectorDraw.h.
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![fDimension] Minima of varexp columns
Definition at line 54 of file TSelectorDraw.h.
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![fSelectedRows]Local buffer for weights
Definition at line 59 of file TSelectorDraw.h.
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Tree weight (see TTree::SetWeight)
Definition at line 56 of file TSelectorDraw.h.