Filter simulated events with multidetector response.

Use this KVEventSelector on simulated data TTrees containing a branch with KVSimEvent-derived objects:

my_tree->Process("KVEventFiltering", "[options]");

where "[options]" is the list of options in the form "BranchName=toto,Dataset=titi,System=tata, ...".

The following options must be given:

SimFileName= name of file containing simulated events
SimTitle= description of simulation
BranchName= name of branch containing simulated events
Dataset= name of experimental dataset (defines multidetector array to use etc.)
System= name of experimental dataset system (defines collision kinematics etc.)
Geometry= type of geometry, either 'KV' (KaliVeda geometry) or 'ROOT' (ROOT TGeometry package)
Filter= type of filter, either ‘'Geo’(geometric filter),'GeoThresh'(geometry + detector thresholds), or'Full'` (full simulation of detector response, including experimental identification and calibration routines)
OutputDir= directory path in which to write filtered data file
Kinematics= kinematical frame for simulation, either "cm" or "lab". if "cm", we use the c.m. velocity of the selected System to transform events into the detector (laboratory) frame. if "lab" no transformation is performed: simulated events are already in laboratory frame.

The following are optional options:

Run: run number to use for detector status, setup, parameters, etc. if not given, first run of the given experimental system is used.
PhiRot: by default, a random rotation around the beam axis will be performed before simulating detection of the event. If you don't want this to happen, give option PhiRot=no If used, filtered events will have a parameter "RANDOM_PHI" with the applied rotation (in radians)
Gemini: if option Gemini=yes, then each event will be "decayed" with Gemini++, if KaliVeda has been compiled with Gemini++ support. See below for extra information on Gemini decay stored in particle parameter lists.
GemDecayPerEvent: if option Gemini=yes then by default 1 Gemini++ decay will be performed for each event. you can change this by giving a value for this option

The filtered data will be written in the directory given as option "OutputDir". The filename is built up from the original simulation filename and the values of various options:

[simfile]_geo=[geometry]_filt=[filter-type]_[dataset]_[system]_run=[run-number].root

type

int type

_

#define _(A, B)

geometry

The data will be stored in a TTree with name 'ReconstructedEvents', in a branch with name 'ReconEvent'. The class used for reconstructed events depends on the dataset, it is given by KVDataSet::GetReconstructedEventClassName().

Each filtered event will have some or all of the following parameters in its list:

SIMEVENT_TREE_ENTRY = index of simulated event in TTree we are reading
SIMEVENT_NUMBER = event number of simulated event in TTree we are reading (if defined i.e. if !=0)
RANDOM_PHI = rotation around beam axis [in radians]

When using Gemini++ to decay simulated events before filtering, each particle will have the following parameter defined:

GEMINI_PARENT_INDEX = index of parent nucleus in simulated event

The combination of SIMEVENT_TREE_ENTRY/_NUMBER and SIMEVENT_NUC allows to connect primary fragments in the simulated events with their detected decay products in the filtered event.

Example: suppose 'recev' is a filtered event and 'sim_tree' is the TTree containing the original simulation, while 'simev' is a pointer to a KVSimEvent object connected to the appropriate branch in 'sim_tree'. Then we can retrieve the parent nucleus responsible for producing a particular nucleus in 'recev' like so:

sim_tree.GetEntry( recev.GetParameters()->GetIntValue("SIMEVENT_TREE_ENTRY" ) );

KVSimNucleus* parent_nuc = (KVSimNucleus*)simev->GetParticle( recev.GetNucleus(15)->GetParameters()->GetIntValue("GEMINI_PARENT_INDEX") ); // parent nucleus of 15th nucleus in filtered event 'recev'

KVSimNucleus

Nucleus in a simulated event.

Definition: KVSimNucleus.h:20

Definition at line 96 of file KVEventFiltering.h.

Public Member Functions
	KVEventFiltering ()
	Default constructor. More...

	KVEventFiltering (const KVEventFiltering &)

virtual	~KVEventFiltering ()
	Destructor. More...

Bool_t	Analysis ()

void	Copy (TObject &) const

void	EndAnalysis ()

void	EndRun ()

void	InitAnalysis ()

void	InitRun ()

void	OpenOutputFile (KVDBSystem *, Int_t)

Public Member Functions inherited from KVEventSelector
	KVEventSelector (TTree *=0)

virtual	~KVEventSelector ()

KVVarGlob *	AddGV (const Char_t class_name, const Char_t name)

void	AddGV (KVVarGlob *vg)

template<typename HistoType , typename... Args>
HistoType *	AddHisto (Args &&... args)

void	AddHisto (TH1 *histo)

TTree *	AddTree (const TString &name, const TString &title="", Int_t splitLevel=99, TDirectory *=gDirectory)
	Add TTree with given name and title to list of TTree to be filled by user's analysis. More...

void	AddTree (TTree *tree)

Bool_t	AtEndOfRun (void)

virtual void	Begin (TTree *tree)

virtual void	CheckEndOfRun ()
	Testing whether EndRun() should be called. More...

Bool_t	CreateTreeFile (const Char_t *filename="")

void	FillHisto (const Char_t sname, const Char_t label, Double_t weight=1)
	Fill 1D histogram with named bins. More...

void	FillHisto (const Char_t *sname, Double_t one, Double_t two=1, Double_t three=1, Double_t four=1)

void	FillTree (const Char_t *sname="")

const Char_t *	GetBranchName () const

virtual Int_t	GetEntry (Long64_t entry, Int_t getall=0)

KVEvent *	GetEvent () const

Int_t	GetEventNumber () const

KVEvent *	GetFriendEvent () const

Int_t	GetFriendTreeEntry (Long64_t entry, Int_t getall=0)

KVVarGlob *	GetGV (const Char_t *name) const

KVGVList *	GetGVList (void)

const KVGVList *	GetGVList (void) const

TH1 *	GetHisto (const Char_t *name) const

const KVHashList *	GetHistoList () const
	return the list of created trees More...

virtual TString	GetOpt (const Char_t *option) const

virtual TList *	GetOutputList () const

TTree *	GetTree (const Char_t *name) const
	return the tree named tree_name More...

const KVHashList *	GetTreeList () const
	return the list of created trees More...

virtual void	Init (TTree *tree)

void	InitFriendTree (TTree *tree, const TString &branchname)

virtual Bool_t	IsOptGiven (const Char_t *option)
	Returns kTRUE if the option 'opt' has been set. More...

virtual Bool_t	Notify ()

virtual void	ParseOptions ()

virtual Bool_t	Process (Long64_t entry)

virtual void	RecalculateGlobalVariables ()

virtual void	SaveHistos (const Char_t filename="", Option_t option="recreate", Bool_t onlyfilled=kFALSE)

virtual void	SetAdditionalBranchAddress ()

virtual void	SetAnalysisFrame ()

void	SetBranchName (const Char_t *n)

virtual void	SetCurrentRun (KVDBRun *)

void	SetEvent (KVEvent *e)

void	SetEventsReadInterval (Long64_t N)

virtual void	SetInputList (TList *input)

void	SetJobOutputFileName (const TString &filename)

virtual void	SetObject (TObject *obj)

virtual void	SetOpt (const Char_t option, const Char_t value)
	Set a value for an option. More...

void	SetParticleConditions (const KVParticleCondition &, const KVString &="")

void	SetParticleConditionsParticleClassName (const KVString &t)

void	SetTriggerConditionsForRun (int)

virtual void	SlaveBegin (TTree *tree)

virtual void	SlaveTerminate ()

virtual void	Terminate ()

virtual void	UnsetOpt (const Char_t *opt)
	Removes the option 'opt' from the internal lists, as if it had never been set. More...

virtual Int_t	Version () const

Public Member Functions inherited from TSelector
	TSelector ()

virtual	~TSelector ()

virtual void	Abort (const char *why, EAbort what=kAbortProcess)

virtual EAbort	GetAbort () const

virtual TList *	GetInputList () const

virtual const char *	GetOption () const

virtual Long64_t	GetStatus () const

virtual void	ImportOutput (TList *output)

virtual Bool_t	ProcessCut (Long64_t)

virtual void	ProcessFill (Long64_t)

virtual void	ResetAbort ()

virtual void	SetOption (const char *option)

virtual void	SetStatus (Long64_t status)

Public Member Functions inherited from TObject
	TObject ()

	TObject (const TObject &object)

virtual	~TObject ()

void	AbstractMethod (const char *method) const

virtual void	AppendPad (Option_t *option="")

virtual void	Browse (TBrowser *b)

ULong_t	CheckedHash ()

virtual const char *	ClassName () const

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const

virtual Int_t	Compare (const TObject *obj) const

virtual void	Delete (Option_t *option="")

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)

virtual void	Draw (Option_t *option="")

virtual void	DrawClass () const

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

virtual void	Dump () const

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

virtual void	Execute (const char method, const char params, Int_t *error=0)

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)

virtual void	Fatal (const char method, const char msgfmt,...) const

virtual TObject *	FindObject (const char *name) const

virtual TObject *	FindObject (const TObject *obj) const

virtual Option_t *	GetDrawOption () const

virtual const char *	GetIconName () const

virtual const char *	GetName () const

virtual char *	GetObjectInfo (Int_t px, Int_t py) const

virtual const char *	GetTitle () const

virtual UInt_t	GetUniqueID () const

virtual Bool_t	HandleTimer (TTimer *timer)

virtual ULong_t	Hash () const

Bool_t	HasInconsistentHash () const

virtual void	Info (const char method, const char msgfmt,...) const

virtual Bool_t	InheritsFrom (const char *classname) const

virtual Bool_t	InheritsFrom (const TClass *cl) const

virtual void	Inspect () const

void	InvertBit (UInt_t f)

virtual Bool_t	IsEqual (const TObject *obj) const

virtual Bool_t	IsFolder () const

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

void	MayNotUse (const char *method) const

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

void	operator delete (void *ptr)

void	operator delete[] (void *ptr)

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)

virtual void	Paint (Option_t *option="")

virtual void	Pop ()

virtual void	Print (Option_t *option="") const

virtual Int_t	Read (const char *name)

virtual void	RecursiveRemove (TObject *obj)

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const

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

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)

virtual void	SetDrawOption (Option_t *option="")

virtual void	SetUniqueID (UInt_t uid)

virtual void	SysError (const char method, const char msgfmt,...) const

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()

virtual void	Warning (const char method, const char msgfmt,...) const

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)

virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const

Public Attributes
TVector3	fCMVelocity

TFile *	fFile

TString	fNewFrame
	allow the definition of a specific frame More...

TVector3	fProjVelocity

KVReconstructedEvent *	fReconEvent

Bool_t	fTransformKinematics
	=kTRUE if simulation not in lab frame More...

TTree *	fTree

Public Attributes inherited from KVEventSelector
TProofOutputFile *	mergeFile
	for merging with PROOF More...

TFile *	writeFile

Public Attributes inherited from TSelector
	kAbortFile

	kAbortProcess

	kContinue

Public Attributes inherited from TObject
	kBitMask

	kCanDelete

	kCannotPick

	kHasUUID

	kInconsistent

	kInvalidObject

	kIsOnHeap

	kIsReferenced

	kMustCleanup

	kNoContextMenu

	kNotDeleted

	kObjInCanvas

	kOverwrite

	kSingleKey

	kWriteDelete

	kZombie

Private Member Functions
void	RandomRotation (KVEvent *to_rotate, const TString &frame_name="") const

Private Attributes
Long64_t	fEVN
	event number counter More...

Bool_t	fGemAddRotEner
	true if rotational energy has to be added to excitation energy [default: no] More...

Int_t	fGemDecayPerEvent
	number of Gemini++ decays to be performed for each event [default:1] More...

KVSimEvent	fGemEvent
	event after decay with Gemini More...

Bool_t	fGemini
	true if Gemini++ decay should be performed before detection [default: no] More...

const char *	fIdCalMode
	original exp setup hasIDandCalib to be reset in case of modifications More...

Bool_t	fRotate
	true if random phi rotation should be applied [default: yes] More...

KVGemini	GEM

Additional Inherited Members
Public Types inherited from TSelector
enum	EAbort

Public Types inherited from TObject
enum	EDeprecatedStatusBits

enum	EStatusBits

Static Public Member Functions inherited from TSelector
static TSelector *	GetSelector (const char *filename)

static Bool_t	IsStandardDraw (const char *selec)

Static Public Member Functions inherited from TObject
static Longptr_t	GetDtorOnly ()

static Bool_t	GetObjectStat ()

static void	SetDtorOnly (void *obj)

static void	SetObjectStat (Bool_t stat)

Protected Member Functions inherited from KVEventSelector
void	add_histo (TH1 *histo)

void	add_tree (TTree *tree)

void	FillTH1 (TH1 *h1, Double_t one, Double_t two)

void	FillTH2 (TH2 *h2, Double_t one, Double_t two, Double_t three)

void	FillTH3 (TH3 *h3, Double_t one, Double_t two, Double_t three, Double_t four)

void	FillTProfile (TProfile *h1, Double_t one, Double_t two, Double_t three)

void	FillTProfile2D (TProfile2D *h2, Double_t one, Double_t two, Double_t three, Double_t four)

void	SetCombinedOutputFile (const TString &filename)

void	SetUpAuxEventChain ()

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const

void	MakeZombie ()

Protected Attributes inherited from KVEventSelector
KVEvent *	AuxEvent
	[optional] events in fAuxChain More...

TBranch *	b_Event
	List of branches. More...

KVEvent *	Event
	Declaration of leaf types. More...

TTree *	fAuxChain
	[optional] pointer to another TTree or TChain which may be used during analysis More...

KVString	fBranchName
	name of branch which contains events to analyse More...

TTree *	fChain
	pointer to the analyzed TTree or TChain More...

KVString	fCombinedOutputFile
	optional name for single results file with trees and histos More...

Bool_t	fDisableCreateTreeFile
	used with PROOF More...

Long64_t	fEventsRead
	number of events read More...

Long64_t	fEventsReadInterval
	interval at which to print number of events read More...

Bool_t	fFirstEvent
	set to kFALSE after first event is read More...

Bool_t	fNotifyCalled
	avoid multiple calls to Notify/InitRun More...

KVNameValueList	fOptionList
	parsed list of options given to TTree::Process More...

KVParticleCondition	fPartCond
	(optional) conditions for selecting particles More...

KVString	fPartName
	(optional) classname for upcasting in KVParticleCondition::Optimize More...

Long64_t	fTreeEntry
	current tree entry number More...

KVGVList	gvlist
	List of global variables. More...

KVHashList *	lhisto
	! More...

KVHashList *	ltree
	! More...

Protected Attributes inherited from TSelector
EAbort	fAbort

TList *	fInput

TObject *	fObject

TString	fOption

TSelectorList *	fOutput

Long64_t	fStatus

Protected Attributes inherited from TObject
	kOnlyPrepStep

#include <KVEventFiltering.h>

Inheritance diagram for KVEventFiltering:

[legend]

Constructor & Destructor Documentation

◆ KVEventFiltering() [1/2]

KVEventFiltering::KVEventFiltering ( )

Default constructor.

Definition at line 21 of file KVEventFiltering.cpp.

◆ KVEventFiltering() [2/2]

KVEventFiltering::KVEventFiltering ( const KVEventFiltering & obj )

Copy constructor This ctor is used to make a copy of an existing object (for example when a method returns an object), and it is always a good idea to implement it. If your class allocates memory in its constructor(s) then it is ESSENTIAL :-)

Definition at line 47 of file KVEventFiltering.cpp.

◆ ~KVEventFiltering()

KVEventFiltering::~KVEventFiltering ( )

virtual

Destructor.

Definition at line 65 of file KVEventFiltering.cpp.

Member Function Documentation

◆ Analysis()

Bool_t KVEventFiltering::Analysis ( void )

virtual

Event-by-event filtering of simulated data. If needed (fTransformKinematics = kTRUE), kinematics of event are transformed to laboratory frame using C.M. velocity calculated in InitAnalysis(). Detection of particles in event is simulated with KVMultiDetArray::DetectEvent, then the reconstructed detected event is treated by the same identification and calibration procedures as for experimental data. few event counter print at the beginning to be sure the process started properly because in case GEMINI decay is used, it sometimes stops (randomly) after few events

Reimplemented from KVEventSelector.

Definition at line 136 of file KVEventFiltering.cpp.

◆ Copy()

void KVEventFiltering::Copy ( TObject & obj ) const

virtual

This method copies the current state of 'this' object into 'obj' You should add here any member variables, for example: (supposing a member variable KVEventFiltering::fToto) CastedObj.fToto = fToto; or CastedObj.SetToto( GetToto() );

Reimplemented from TObject.

Definition at line 84 of file KVEventFiltering.cpp.

◆ EndAnalysis()

void KVEventFiltering::EndAnalysis ( )

virtual

Reimplemented from KVEventSelector.

Definition at line 211 of file KVEventFiltering.cpp.

◆ EndRun()

void KVEventFiltering::EndRun ( )

virtual

Reimplemented from KVEventSelector.

Definition at line 220 of file KVEventFiltering.cpp.

◆ InitAnalysis()

void KVEventFiltering::InitAnalysis ( )

virtual

Select required dataset for filtering (option "Dataset") Build the associated multidetector geometry. Calculate C.M. velocity associated with required experimental collision kinematics (option "System").

Set the parameters of the detectors according to the required run if given (option "Run"), or the first run of the given system otherwise. If ROOT/TGeo geometry is required (option "Geometry"="ROOT"), build the TGeometry representation of the detector array.

Open file for filtered data (see KVEventFiltering::OpenOutputFile), which will be stored in a TTree with name 'ReconstructedEvents', in a branch with name 'ReconEvent'. The class used for reconstructed events depends on the dataset, it is given by KVDataSet::GetReconstructedEventClassName().

Reimplemented from KVEventSelector.

Definition at line 242 of file KVEventFiltering.cpp.

◆ InitRun()

void KVEventFiltering::InitRun ( )

virtual

Reimplemented from KVEventSelector.

Definition at line 406 of file KVEventFiltering.cpp.

◆ OpenOutputFile()

void KVEventFiltering::OpenOutputFile	(	KVDBSystem *	S,
		Int_t	run
	)

Open ROOT file for new filtered events TTree. The file will be written in the directory given as option "OutputDir". The filename is built up from the original simulation filename and the values of various options:

[simfile]_[Gemini]_geo=[geometry]_filt=[filter-type]_[dataset]_[system]_run=[run-number].root

In addition, informations on the filtered data are stored in the file as TNamed objects. These can be read by KVSimDir::AnalyseFile:

KEY: TNamed System;1 title=[full system name] KEY: TNamed Dataset;1 title=[dataset name] KEY: TNamed Run;1 title=[run-number] KEY: TNamed Geometry;1 title=[geometry-type] KEY: TNamed Filter;1 title=[filter-type] KEY: TNamed Origin;1 title=[name of simulation file] KEY: TNamed RandomPhi;1 title=[yes/no, random rotation about beam axis] KEY: TNamed Gemini++;1 title=[yes/no, Gemini++ decay before detection] KEY: TNamed GemDecayPerEvent;1 title=[number of Gemini++ decays per primary event] KEY: TNamed GemAddRotEner;1 title=[Enable or not the addition of the rotational energy to the excitation energy]

Definition at line 439 of file KVEventFiltering.cpp.

◆ RandomRotation()

void KVEventFiltering::RandomRotation	(	KVEvent *	to_rotate,
		const TString &	frame_name = `""`
	)		const

private

do random phi rotation around z-axis if frame_name is given, apply rotation to that frame

store phi rotation angle [radians] in event parameter "RANDOM_PHI"

Definition at line 110 of file KVEventFiltering.cpp.

Member Data Documentation

◆ fCMVelocity

TVector3 KVEventFiltering::fCMVelocity

Definition at line 129 of file KVEventFiltering.h.

◆ fEVN

Long64_t KVEventFiltering::fEVN

private

event number counter

Definition at line 100 of file KVEventFiltering.h.

◆ fFile

TFile* KVEventFiltering::fFile

Definition at line 126 of file KVEventFiltering.h.

◆ fGemAddRotEner

Bool_t KVEventFiltering::fGemAddRotEner

private

true if rotational energy has to be added to excitation energy [default: no]

Definition at line 104 of file KVEventFiltering.h.

◆ fGemDecayPerEvent

Int_t KVEventFiltering::fGemDecayPerEvent

private

number of Gemini++ decays to be performed for each event [default:1]

Definition at line 105 of file KVEventFiltering.h.

◆ fGemEvent

KVSimEvent KVEventFiltering::fGemEvent

private

event after decay with Gemini

Definition at line 106 of file KVEventFiltering.h.

◆ fGemini

Bool_t KVEventFiltering::fGemini

private

true if Gemini++ decay should be performed before detection [default: no]

Definition at line 103 of file KVEventFiltering.h.

◆ fIdCalMode

const char* KVEventFiltering::fIdCalMode

private

original exp setup hasIDandCalib to be reset in case of modifications

Definition at line 110 of file KVEventFiltering.h.

◆ fNewFrame

TString KVEventFiltering::fNewFrame

allow the definition of a specific frame

Definition at line 132 of file KVEventFiltering.h.

◆ fProjVelocity

TVector3 KVEventFiltering::fProjVelocity

Definition at line 130 of file KVEventFiltering.h.

◆ fReconEvent

KVReconstructedEvent* KVEventFiltering::fReconEvent

Definition at line 128 of file KVEventFiltering.h.

◆ fRotate

Bool_t KVEventFiltering::fRotate

private

true if random phi rotation should be applied [default: yes]

Definition at line 101 of file KVEventFiltering.h.

◆ fTransformKinematics

Bool_t KVEventFiltering::fTransformKinematics

=kTRUE if simulation not in lab frame

Definition at line 131 of file KVEventFiltering.h.

◆ fTree

TTree* KVEventFiltering::fTree

Definition at line 127 of file KVEventFiltering.h.

◆ GEM

KVGemini KVEventFiltering::GEM

private

Definition at line 107 of file KVEventFiltering.h.

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

kaliveda.doxygen/KVMultiDet/simulation/KVEventFiltering.h
kaliveda.doxygen/KVMultiDet/simulation/KVEventFiltering.cpp

Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ KVEventFiltering() [1/2]

◆ KVEventFiltering() [2/2]

◆ ~KVEventFiltering()

Member Function Documentation

◆ Analysis()

◆ Copy()

◆ EndAnalysis()

◆ EndRun()

◆ InitAnalysis()

◆ InitRun()

◆ OpenOutputFile()

◆ RandomRotation()

Member Data Documentation

◆ fCMVelocity

◆ fEVN

◆ fFile

◆ fGemAddRotEner

◆ fGemDecayPerEvent

◆ fGemEvent

◆ fGemini

◆ fIdCalMode

◆ fNewFrame

◆ fProjVelocity

◆ fReconEvent

◆ fRotate

◆ fTransformKinematics

◆ fTree

◆ GEM