[u/mrichter/AliRoot.git] / JETAN / AliJet.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/
 
//---------------------------------------------------------------------
// Jet class 
// Stores the output of a jet algorithm
// Author: jgcn@mda.cinvestav.mx
//---------------------------------------------------------------------
 
#include <Riostream.h>
#include <TClonesArray.h>
#include <TLorentzVector.h>

#include "AliJet.h"
ClassImp(AliJet)
  
AliJet::AliJet():
  fNInput(0),
  fNJets(0),
  fEtAvg(0),
  fInJet(0),
  fMultiplicities(0),
  fNCells(0),
  fPtFromSignal(0),
  fJets(0),
  fEtaIn(0),
  fPhiIn(0),
  fPtIn(0)
{
  // Default constructor
  fJets = new TClonesArray("TLorentzVector",1000);
  fInJet = TArrayI();
  fPtIn = TArrayF();
  fEtaIn = TArrayF();
  fPhiIn = TArrayF();
  fPtFromSignal = TArrayF();
  fMultiplicities = TArrayI();
  fNCells = TArrayI();
} 

////////////////////////////////////////////////////////////////////////

AliJet::~AliJet()
{
  // destructor
  if (fJets) {
    fJets->Delete();
    delete fJets;
  }
}

////////////////////////////////////////////////////////////////////////

Bool_t AliJet::OutOfRange(Int_t i, const char *s) const
{
  // checks if i is a valid index. s = name of calling method
  if (i >= fNJets || i < 0) {
    cout << s << " Index " << i << " out of range" << endl;
    return kTRUE;
  }
  return kFALSE;
}

////////////////////////////////////////////////////////////////////////

TLorentzVector* AliJet::GetJet(Int_t i)
{
  // returns i-jet
  if (OutOfRange(i, "AliJet::GetJet:")) return 0;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv; 
}

////////////////////////////////////////////////////////////////////////

Int_t AliJet::GetMultiplicity(Int_t i) const
{
  // gets multiplicity of i-jet
  if (OutOfRange(i, "AliJet::GetMultiplicity:")) return 0;
  return fMultiplicities[i];
}

////////////////////////////////////////////////////////////////////////

Int_t AliJet::GetNCell(Int_t i) const
{
  // gets number of cell of i-jet
  if (OutOfRange(i, "AliJet::GetNCell:")) return 0;
  return fNCells[i];
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetPx(Int_t i)
{
// Get Px component of jet i
  if (OutOfRange(i, "AliJet::GetPx:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->Px();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetPy(Int_t i)
{
// Get Py component of jet i
  if (OutOfRange(i, "AliJet::GetPy:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->Py();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetPz(Int_t i)
{
// Get Pz component of jet i
  if (OutOfRange(i, "AliJet::GetPz:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->Pz();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetP(Int_t i)
{
// Get momentum of jet i
  if (OutOfRange(i, "AliJet::GetP:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->P();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetE(Int_t i)
{
// Get energy of jet i
  if (OutOfRange(i, "AliJet::GetE:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->E();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetPt(Int_t i)
{
// Get transverse momentum of jet i
  if (OutOfRange(i, "AliJet::GetPt:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->Pt();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetEta(Int_t i)
{
// Get eta of jet i
  if (OutOfRange(i, "AliJet::GetEta:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->Eta();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetPhi(Int_t i)
{
// Get phi of jet i
  if (OutOfRange(i, "AliJet::GetPhi:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return ( (lv->Phi() < 0) ? (lv->Phi()) + 2. * TMath::Pi() : lv->Phi());
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetTheta(Int_t i)
{
// Get theta of jet i
  if (OutOfRange(i, "AliJet::GetTheta:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->Theta();
}

////////////////////////////////////////////////////////////////////////

Double_t AliJet::GetMass(Int_t i)
{
// Get invariant mass of jet i
  if (OutOfRange(i, "AliJet::GetMass:")) return -1e30;
  TLorentzVector *lv = (TLorentzVector*) fJets->At(i);
  return lv->M();
}

////////////////////////////////////////////////////////////////////////
 

void AliJet::AddJet(Double_t px, Double_t py, Double_t pz, Double_t e)
{
// Add new jet to the list
  new ((*fJets)[fNJets++]) TLorentzVector(px,py,pz,e);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetInJet(Int_t* j)
{
  // set information of which input object belongs
  // to each jet. If zero, object was not assigned to
  // a jet, if n,positive, it was assiged to jet n
  // if n, negative, it is within cone of jet n, but
  // it did not passed the user cuts. filled in by AliJetFinder
  if (fNInput>0) fInJet.Set(fNInput, j);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetEtaIn(Float_t* r)
{
  if (fNInput>0) fEtaIn.Set(fNInput, r);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetPtIn(Float_t* pt)
{
  if (fNInput>0) fPtIn.Set(fNInput, pt);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetPhiIn(Float_t* x)
{
  if (fNInput>0) fPhiIn.Set(fNInput, x);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetPtFromSignal(Float_t* p)
{
  // set information of percentage of pt of jets
  // coming from signal (ie Pythia)
  if (fNJets>0) fPtFromSignal.Set(fNJets, p);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetMultiplicities(Int_t* m)
{
  // set information of jet multiplicities
  // filled in by AliJetFinder
  if (fNJets>0) fMultiplicities.Set(fNJets, m);
}

////////////////////////////////////////////////////////////////////////

void AliJet::SetNCells(Int_t* n)
{
  if (fNJets>0) fNCells.Set(fNJets, n);
}

////////////////////////////////////////////////////////////////////////

void AliJet::ClearJets(Option_t *option)
{
  // reset all values
  fJets->Clear(option);
  fNInput=0;
  fNJets=0;
  fMultiplicities.Set(0);
  fInJet.Set(0); 
  fPtFromSignal.Set(0);
  fPhiIn.Set(0);
  fEtaIn.Set(0);
  fPtIn.Set(0);
  fNCells.Set(0);
}

////////////////////////////////////////////////////////////////////////

void AliJet::PrintJets()
{
// Print jet information
  if (fNJets == 0) {
    cout << " AliJet::PrintJets: There are no jets in this event " << endl;
    return;
  }
  cout << " AliJet::PrintJets: There are " << fNJets
       << " jets in this event" << endl;
  for(Int_t i=0;i<fNJets;i++) {
    cout << "   Jet " << i << " (px,py,pz,en)=(" << GetPx(i)
	 << "," << GetPy(i)
	 << "," << GetPz(i)
	 << "," << GetE(i) 
	 << ")" << endl;
    cout << "         (pt,eta,phi)=(" << GetPt(i)
	 << "," << GetEta(i)
	 << "," << GetPhi(i) << ")" << endl;
    cout << "         # of tracks =" << GetMultiplicity(i) << endl;
  }
}
Commit	Line	Data
99e5fe42	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	//---------------------------------------------------------------------
	17	// Jet class
	18	// Stores the output of a jet algorithm
	19	// Author: jgcn@mda.cinvestav.mx
	20	//---------------------------------------------------------------------
	21
	22	#include <Riostream.h>
	23	#include <TClonesArray.h>
	24	#include <TLorentzVector.h>
	25
	26	#include "AliJet.h"
	27	ClassImp(AliJet)
1b7d5d7e	28
	29	AliJet::AliJet():
	30	fNInput(0),
	31	fNJets(0),
	32	fEtAvg(0),
	33	fInJet(0),
	34	fMultiplicities(0),
	35	fNCells(0),
	36	fPtFromSignal(0),
	37	fJets(0),
	38	fEtaIn(0),
	39	fPhiIn(0),
	40	fPtIn(0)
99e5fe42	41	{
1b7d5d7e	42	// Default constructor
99e5fe42	43	fJets = new TClonesArray("TLorentzVector",1000);
1b7d5d7e	44	fInJet = TArrayI();
	45	fPtIn = TArrayF();
	46	fEtaIn = TArrayF();
	47	fPhiIn = TArrayF();
	48	fPtFromSignal = TArrayF();
	49	fMultiplicities = TArrayI();
	50	fNCells = TArrayI();
99e5fe42	51	}
	52
	53	////////////////////////////////////////////////////////////////////////
	54
	55	AliJet::~AliJet()
	56	{
	57	// destructor
	58	if (fJets) {
	59	fJets->Delete();
	60	delete fJets;
	61	}
	62	}
	63
	64	////////////////////////////////////////////////////////////////////////
	65
	66	Bool_t AliJet::OutOfRange(Int_t i, const char *s) const
	67	{
83a444b1	68	// checks if i is a valid index. s = name of calling method
99e5fe42	69	if (i >= fNJets \|\| i < 0) {
	70	cout << s << " Index " << i << " out of range" << endl;
	71	return kTRUE;
	72	}
	73	return kFALSE;
	74	}
	75
	76	////////////////////////////////////////////////////////////////////////
	77
	78	TLorentzVector* AliJet::GetJet(Int_t i)
	79	{
	80	// returns i-jet
	81	if (OutOfRange(i, "AliJet::GetJet:")) return 0;
99e5fe42	82	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	83	return lv;
	84	}
	85
	86	////////////////////////////////////////////////////////////////////////
	87
83a444b1	88	Int_t AliJet::GetMultiplicity(Int_t i) const
99e5fe42	89	{
	90	// gets multiplicity of i-jet
	91	if (OutOfRange(i, "AliJet::GetMultiplicity:")) return 0;
	92	return fMultiplicities[i];
	93	}
	94
	95	////////////////////////////////////////////////////////////////////////
	96
83a444b1	97	Int_t AliJet::GetNCell(Int_t i) const
	98	{
	99	// gets number of cell of i-jet
	100	if (OutOfRange(i, "AliJet::GetNCell:")) return 0;
	101	return fNCells[i];
	102	}
	103
	104	////////////////////////////////////////////////////////////////////////
	105
99e5fe42	106	Double_t AliJet::GetPx(Int_t i)
	107	{
	108	// Get Px component of jet i
	109	if (OutOfRange(i, "AliJet::GetPx:")) return -1e30;
99e5fe42	110	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	111	return lv->Px();
	112	}
	113
	114	////////////////////////////////////////////////////////////////////////
	115
	116	Double_t AliJet::GetPy(Int_t i)
	117	{
	118	// Get Py component of jet i
	119	if (OutOfRange(i, "AliJet::GetPy:")) return -1e30;
99e5fe42	120	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	121	return lv->Py();
	122	}
	123
	124	////////////////////////////////////////////////////////////////////////
	125
	126	Double_t AliJet::GetPz(Int_t i)
	127	{
	128	// Get Pz component of jet i
	129	if (OutOfRange(i, "AliJet::GetPz:")) return -1e30;
99e5fe42	130	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	131	return lv->Pz();
	132	}
	133
	134	////////////////////////////////////////////////////////////////////////
	135
	136	Double_t AliJet::GetP(Int_t i)
	137	{
	138	// Get momentum of jet i
	139	if (OutOfRange(i, "AliJet::GetP:")) return -1e30;
99e5fe42	140	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	141	return lv->P();
	142	}
	143
	144	////////////////////////////////////////////////////////////////////////
	145
	146	Double_t AliJet::GetE(Int_t i)
	147	{
	148	// Get energy of jet i
	149	if (OutOfRange(i, "AliJet::GetE:")) return -1e30;
99e5fe42	150	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	151	return lv->E();
	152	}
	153
	154	////////////////////////////////////////////////////////////////////////
	155
	156	Double_t AliJet::GetPt(Int_t i)
	157	{
	158	// Get transverse momentum of jet i
	159	if (OutOfRange(i, "AliJet::GetPt:")) return -1e30;
99e5fe42	160	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	161	return lv->Pt();
	162	}
	163
	164	////////////////////////////////////////////////////////////////////////
	165
	166	Double_t AliJet::GetEta(Int_t i)
	167	{
	168	// Get eta of jet i
	169	if (OutOfRange(i, "AliJet::GetEta:")) return -1e30;
99e5fe42	170	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	171	return lv->Eta();
	172	}
	173
	174	////////////////////////////////////////////////////////////////////////
	175
	176	Double_t AliJet::GetPhi(Int_t i)
	177	{
	178	// Get phi of jet i
	179	if (OutOfRange(i, "AliJet::GetPhi:")) return -1e30;
99e5fe42	180	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	181	return ( (lv->Phi() < 0) ? (lv->Phi()) + 2. * TMath::Pi() : lv->Phi());
	182	}
	183
	184	////////////////////////////////////////////////////////////////////////
	185
	186	Double_t AliJet::GetTheta(Int_t i)
	187	{
	188	// Get theta of jet i
	189	if (OutOfRange(i, "AliJet::GetTheta:")) return -1e30;
99e5fe42	190	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	191	return lv->Theta();
	192	}
	193
	194	////////////////////////////////////////////////////////////////////////
	195
	196	Double_t AliJet::GetMass(Int_t i)
	197	{
	198	// Get invariant mass of jet i
	199	if (OutOfRange(i, "AliJet::GetMass:")) return -1e30;
99e5fe42	200	TLorentzVector lv = (TLorentzVector) fJets->At(i);
	201	return lv->M();
	202	}
	203
	204	////////////////////////////////////////////////////////////////////////
	205
	206
	207	void AliJet::AddJet(Double_t px, Double_t py, Double_t pz, Double_t e)
	208	{
	209	// Add new jet to the list
	210	new ((*fJets)[fNJets++]) TLorentzVector(px,py,pz,e);
	211	}
	212
	213	////////////////////////////////////////////////////////////////////////
	214
	215	void AliJet::SetInJet(Int_t* j)
	216	{
	217	// set information of which input object belongs
83a444b1	218	// to each jet. If zero, object was not assigned to
	219	// a jet, if n,positive, it was assiged to jet n
	220	// if n, negative, it is within cone of jet n, but
	221	// it did not passed the user cuts. filled in by AliJetFinder
99e5fe42	222	if (fNInput>0) fInJet.Set(fNInput, j);
	223	}
	224
	225	////////////////////////////////////////////////////////////////////////
	226
83a444b1	227	void AliJet::SetEtaIn(Float_t* r)
	228	{
	229	if (fNInput>0) fEtaIn.Set(fNInput, r);
	230	}
	231
	232	////////////////////////////////////////////////////////////////////////
	233
	234	void AliJet::SetPtIn(Float_t* pt)
	235	{
	236	if (fNInput>0) fPtIn.Set(fNInput, pt);
	237	}
	238
	239	////////////////////////////////////////////////////////////////////////
	240
	241	void AliJet::SetPhiIn(Float_t* x)
	242	{
	243	if (fNInput>0) fPhiIn.Set(fNInput, x);
	244	}
	245
	246	////////////////////////////////////////////////////////////////////////
	247
365b766d	248	void AliJet::SetPtFromSignal(Float_t* p)
	249	{
	250	// set information of percentage of pt of jets
	251	// coming from signal (ie Pythia)
	252	if (fNJets>0) fPtFromSignal.Set(fNJets, p);
	253	}
	254
	255	////////////////////////////////////////////////////////////////////////
	256
99e5fe42	257	void AliJet::SetMultiplicities(Int_t* m)
	258	{
	259	// set information of jet multiplicities
	260	// filled in by AliJetFinder
	261	if (fNJets>0) fMultiplicities.Set(fNJets, m);
	262	}
	263
	264	////////////////////////////////////////////////////////////////////////
	265
83a444b1	266	void AliJet::SetNCells(Int_t* n)
	267	{
	268	if (fNJets>0) fNCells.Set(fNJets, n);
	269	}
	270
	271	////////////////////////////////////////////////////////////////////////
	272
99e5fe42	273	void AliJet::ClearJets(Option_t *option)
	274	{
	275	// reset all values
	276	fJets->Clear(option);
	277	fNInput=0;
	278	fNJets=0;
	279	fMultiplicities.Set(0);
	280	fInJet.Set(0);
83a444b1	281	fPtFromSignal.Set(0);
	282	fPhiIn.Set(0);
	283	fEtaIn.Set(0);
	284	fPtIn.Set(0);
	285	fNCells.Set(0);
99e5fe42	286	}
	287
	288	////////////////////////////////////////////////////////////////////////
	289
	290	void AliJet::PrintJets()
	291	{
	292	// Print jet information
	293	if (fNJets == 0) {
	294	cout << " AliJet::PrintJets: There are no jets in this event " << endl;
	295	return;
	296	}
	297	cout << " AliJet::PrintJets: There are " << fNJets
	298	<< " jets in this event" << endl;
	299	for(Int_t i=0;i<fNJets;i++) {
	300	cout << " Jet " << i << " (px,py,pz,en)=(" << GetPx(i)
	301	<< "," << GetPy(i)
	302	<< "," << GetPz(i)
	303	<< "," << GetE(i)
	304	<< ")" << endl;
	305	cout << " (pt,eta,phi)=(" << GetPt(i)
	306	<< "," << GetEta(i)
	307	<< "," << GetPhi(i) << ")" << endl;
	308	cout << " # of tracks =" << GetMultiplicity(i) << endl;
	309	}
	310	}