[u/mrichter/AliRoot.git] / STEER / AliAODTrack.cxx

/**************************************************************************
 * Copyright(c) 1998-2007, 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.                  *
 **************************************************************************/

/* $Id$ */

//-------------------------------------------------------------------------
//     AOD track base class
//     Author: Markus Oldenburg, CERN
//-------------------------------------------------------------------------

#include "AliAODTrack.h"

ClassImp(AliAODTrack)

//______________________________________________________________________________
AliAODTrack::AliAODTrack() : 
  AliVirtualParticle(),
  fChi2(-999.),
  fID(-999),
  fLabel(-999),
  fCovMatrix(NULL),
  fProdVertex(0x0),
  fCharge(-99),
  fITSClusterMap(0),
  fType(kUndef)
{
  // default constructor

  SetP();
  SetPosition((Float_t*)NULL);
  SetPID((Float_t*)NULL);
}

//______________________________________________________________________________
AliAODTrack::AliAODTrack(Int_t id,
			 Int_t label, 
			 Double_t p[3],
			 Bool_t cartesian,
			 Double_t x[3],
			 Bool_t isDCA,
			 Double_t covMatrix[21],
			 Short_t charge,
			 UChar_t itsClusMap,
			 Double_t pid[10],
			 AliAODVertex *prodVertex,
			 AODTrk_t ttype) :
  AliVirtualParticle(),
  fChi2(-999.),
  fID(id),
  fLabel(label),
  fCovMatrix(NULL),
  fProdVertex(prodVertex),
  fCharge(charge),
  fITSClusterMap(itsClusMap),
  fType(ttype)
{
  // constructor
 
  SetP(p, cartesian);
  SetPosition(x, isDCA);
  if(covMatrix) SetCovMatrix(covMatrix);
  SetPID(pid);

}

//______________________________________________________________________________
AliAODTrack::AliAODTrack(Int_t id,
			 Int_t label, 
			 Float_t p[3],
			 Bool_t cartesian,
			 Float_t x[3],
			 Bool_t isDCA,
			 Float_t covMatrix[21],
			 Short_t charge,
			 UChar_t itsClusMap,
			 Float_t pid[10],
			 AliAODVertex *prodVertex,
			 AODTrk_t ttype) :
  AliVirtualParticle(),
  fChi2(-999.),
  fID(id),
  fLabel(label),
  fCovMatrix(NULL),
  fProdVertex(prodVertex),
  fCharge(charge),
  fITSClusterMap(itsClusMap),
  fType(ttype)
{
  // constructor
 
  SetP(p, cartesian);
  SetPosition(x, isDCA);
  if(covMatrix) SetCovMatrix(covMatrix);
  SetPID(pid);

}

//______________________________________________________________________________
AliAODTrack::~AliAODTrack() 
{
  // destructor
  delete fCovMatrix;
}


//______________________________________________________________________________
AliAODTrack::AliAODTrack(const AliAODTrack& trk) :
  AliVirtualParticle(trk),
  fChi2(trk.fChi2),
  fID(trk.fID),
  fLabel(trk.fLabel),
  fCovMatrix(NULL),
  fProdVertex(trk.fProdVertex),
  fCharge(trk.fCharge),
  fITSClusterMap(trk.fITSClusterMap),
  fType(trk.fType)
{
  // Copy constructor

  trk.GetP(fMomentum);
  trk.GetPosition(fPosition);
  if(trk.fCovMatrix) fCovMatrix=new AliAODRedCov<6>(*trk.fCovMatrix);
  SetPID(trk.fPID);

}

//______________________________________________________________________________
AliAODTrack& AliAODTrack::operator=(const AliAODTrack& trk)
{
  // Assignment operator
  if(this!=&trk) {

    AliVirtualParticle::operator=(trk);

    trk.GetP(fMomentum);
    trk.GetPosition(fPosition);
    trk.GetPID(fPID);

    fChi2 = trk.fChi2;

    fID = trk.fID;
    fLabel = trk.fLabel;    
    
    delete fCovMatrix;
    if(trk.fCovMatrix) fCovMatrix=new AliAODRedCov<6>(*trk.fCovMatrix);
    else fCovMatrix=NULL;
    fProdVertex = trk.fProdVertex;

    fCharge = trk.fCharge;
    fITSClusterMap = trk.fITSClusterMap;
    fType = trk.fType;
  }

  return *this;
}

//______________________________________________________________________________
template <class T> void AliAODTrack::SetP(const T *p, const Bool_t cartesian) 
{
  // set the momentum

  if (p) {
    if (cartesian) {
      Double_t pt = TMath::Sqrt(p[0]*p[0] + p[1]*p[1]);
      Double_t P = TMath::Sqrt(pt*pt + p[2]*p[2]);
      
      fMomentum[0] = 1./pt;
      fMomentum[1] = TMath::ACos(p[2]/P);
      fMomentum[2] = TMath::ATan2(p[1], p[0]);
    } else {
      fMomentum[0] = p[0];  // 1/pt
      fMomentum[1] = p[1];  // phi
      fMomentum[2] = p[2];  // theta
    }
  } else {
    fMomentum[0] = -999.;
    fMomentum[1] = -999.;
    fMomentum[2] = -999.;
  }
}

//______________________________________________________________________________
template <class T> void AliAODTrack::SetPosition(const T *x, const Bool_t dca) 
{
  // set the position

  if (x) {
    if (!dca) {
      ResetBit(kIsDCA);

      fPosition[0] = x[0];
      fPosition[1] = x[1];
      fPosition[2] = x[2];
    } else {
      SetBit(kIsDCA);
      // don't know any better yet
      fPosition[0] = -999.;
      fPosition[1] = -999.;
      fPosition[2] = -999.;
    }
  } else {
    ResetBit(kIsDCA);

    fPosition[0] = -999.;
    fPosition[1] = -999.;
    fPosition[2] = -999.;
  }
}

//______________________________________________________________________________
void AliAODTrack::SetDCA(Double_t d, Double_t z) 
{
  // set the dca
  fPosition[0] = d;
  fPosition[1] = z;
  fPosition[2] = 0.;
  SetBit(kIsDCA);
}

//______________________________________________________________________________
void AliAODTrack::Print(Option_t* /* option */) const
{
  // prints information about AliAODTrack

  printf("Object name: %s   Track type: %s\n", GetName(), GetTitle()); 
  printf("        px = %f\n", Px());
  printf("        py = %f\n", Py());
  printf("        pz = %f\n", Pz());
  printf("        pt = %f\n", Pt());
  printf("      1/pt = %f\n", OneOverPt());
  printf("     theta = %f\n", Theta());
  printf("       phi = %f\n", Phi());
  printf("      chi2 = %f\n", Chi2());
  printf("    charge = %d\n", Charge());
  printf(" PID object: %p\n", PID());
}
Commit	Line	Data
df9db588	1	/**************************************************************************
	2	* Copyright(c) 1998-2007, 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	/* $Id$ */
	17
	18	//-------------------------------------------------------------------------
	19	// AOD track base class
	20	// Author: Markus Oldenburg, CERN
	21	//-------------------------------------------------------------------------
	22
	23	#include "AliAODTrack.h"
	24
	25	ClassImp(AliAODTrack)
	26
	27	//______________________________________________________________________________
	28	AliAODTrack::AliAODTrack() :
	29	AliVirtualParticle(),
	30	fChi2(-999.),
	31	fID(-999),
	32	fLabel(-999),
	33	fCovMatrix(NULL),
	34	fProdVertex(0x0),
14b34be5	35	fCharge(-99),
df9db588	36	fITSClusterMap(0),
	37	fType(kUndef)
	38	{
	39	// default constructor
	40
	41	SetP();
	42	SetPosition((Float_t*)NULL);
	43	SetPID((Float_t*)NULL);
	44	}
	45
	46	//______________________________________________________________________________
	47	AliAODTrack::AliAODTrack(Int_t id,
	48	Int_t label,
	49	Double_t p[3],
	50	Bool_t cartesian,
	51	Double_t x[3],
	52	Bool_t isDCA,
	53	Double_t covMatrix[21],
	54	Short_t charge,
	55	UChar_t itsClusMap,
	56	Double_t pid[10],
	57	AliAODVertex *prodVertex,
	58	AODTrk_t ttype) :
	59	AliVirtualParticle(),
	60	fChi2(-999.),
	61	fID(id),
	62	fLabel(label),
	63	fCovMatrix(NULL),
	64	fProdVertex(prodVertex),
	65	fCharge(charge),
	66	fITSClusterMap(itsClusMap),
	67	fType(ttype)
	68	{
	69	// constructor
	70
	71	SetP(p, cartesian);
	72	SetPosition(x, isDCA);
	73	if(covMatrix) SetCovMatrix(covMatrix);
	74	SetPID(pid);
	75
	76	}
	77
	78	//______________________________________________________________________________
	79	AliAODTrack::AliAODTrack(Int_t id,
	80	Int_t label,
	81	Float_t p[3],
	82	Bool_t cartesian,
	83	Float_t x[3],
	84	Bool_t isDCA,
	85	Float_t covMatrix[21],
	86	Short_t charge,
	87	UChar_t itsClusMap,
	88	Float_t pid[10],
	89	AliAODVertex *prodVertex,
	90	AODTrk_t ttype) :
	91	AliVirtualParticle(),
	92	fChi2(-999.),
	93	fID(id),
	94	fLabel(label),
	95	fCovMatrix(NULL),
	96	fProdVertex(prodVertex),
	97	fCharge(charge),
	98	fITSClusterMap(itsClusMap),
	99	fType(ttype)
100	{
101	// constructor
102
103	SetP(p, cartesian);
104	SetPosition(x, isDCA);
105	if(covMatrix) SetCovMatrix(covMatrix);
106	SetPID(pid);
107
108	}
109
df9db588	110	//______________________________________________________________________________
	111	AliAODTrack::~AliAODTrack()
	112	{
	113	// destructor
	114	delete fCovMatrix;
	115	}
	116
	117
	118	//______________________________________________________________________________
	119	AliAODTrack::AliAODTrack(const AliAODTrack& trk) :
	120	AliVirtualParticle(trk),
	121	fChi2(trk.fChi2),
	122	fID(trk.fID),
	123	fLabel(trk.fLabel),
	124	fCovMatrix(NULL),
	125	fProdVertex(trk.fProdVertex),
	126	fCharge(trk.fCharge),
	127	fITSClusterMap(trk.fITSClusterMap),
	128	fType(trk.fType)
	129	{
	130	// Copy constructor
	131
	132	trk.GetP(fMomentum);
	133	trk.GetPosition(fPosition);
5d62ce04	134	if(trk.fCovMatrix) fCovMatrix=new AliAODRedCov<6>(*trk.fCovMatrix);
df9db588	135	SetPID(trk.fPID);
	136
	137	}
	138
	139	//______________________________________________________________________________
	140	AliAODTrack& AliAODTrack::operator=(const AliAODTrack& trk)
	141	{
	142	// Assignment operator
	143	if(this!=&trk) {
	144
	145	AliVirtualParticle::operator=(trk);
	146
	147	trk.GetP(fMomentum);
	148	trk.GetPosition(fPosition);
	149	trk.GetPID(fPID);
	150
	151	fChi2 = trk.fChi2;
	152
	153	fID = trk.fID;
	154	fLabel = trk.fLabel;
	155
	156	delete fCovMatrix;
5d62ce04	157	if(trk.fCovMatrix) fCovMatrix=new AliAODRedCov<6>(*trk.fCovMatrix);
df9db588	158	else fCovMatrix=NULL;
	159	fProdVertex = trk.fProdVertex;
	160
	161	fCharge = trk.fCharge;
	162	fITSClusterMap = trk.fITSClusterMap;
	163	fType = trk.fType;
	164	}
	165
	166	return *this;
	167	}
	168
	169	//______________________________________________________________________________
	170	template <class T> void AliAODTrack::SetP(const T *p, const Bool_t cartesian)
	171	{
	172	// set the momentum
	173
	174	if (p) {
	175	if (cartesian) {
	176	Double_t pt = TMath::Sqrt(p[0]p[0] + p[1]p[1]);
	177	Double_t P = TMath::Sqrt(ptpt + p[2]p[2]);
	178
	179	fMomentum[0] = 1./pt;
	180	fMomentum[1] = TMath::ACos(p[2]/P);
	181	fMomentum[2] = TMath::ATan2(p[1], p[0]);
	182	} else {
	183	fMomentum[0] = p[0]; // 1/pt
	184	fMomentum[1] = p[1]; // phi
	185	fMomentum[2] = p[2]; // theta
	186	}
	187	} else {
	188	fMomentum[0] = -999.;
	189	fMomentum[1] = -999.;
	190	fMomentum[2] = -999.;
	191	}
	192	}
	193
	194	//______________________________________________________________________________
	195	template <class T> void AliAODTrack::SetPosition(const T *x, const Bool_t dca)
	196	{
	197	// set the position
	198
	199	if (x) {
	200	if (!dca) {
	201	ResetBit(kIsDCA);
	202
	203	fPosition[0] = x[0];
	204	fPosition[1] = x[1];
	205	fPosition[2] = x[2];
	206	} else {
	207	SetBit(kIsDCA);
	208	// don't know any better yet
	209	fPosition[0] = -999.;
	210	fPosition[1] = -999.;
	211	fPosition[2] = -999.;
	212	}
	213	} else {
	214	ResetBit(kIsDCA);
	215
	216	fPosition[0] = -999.;
	217	fPosition[1] = -999.;
	218	fPosition[2] = -999.;
	219	}
	220	}
	221
222	//______________________________________________________________________________
223	void AliAODTrack::SetDCA(Double_t d, Double_t z)
224	{
225	// set the dca
226	fPosition[0] = d;
227	fPosition[1] = z;
228	fPosition[2] = 0.;
229	SetBit(kIsDCA);
230	}
231
232	//______________________________________________________________________________
233	void AliAODTrack::Print(Option_t* /* option */) const
234	{
235	// prints information about AliAODTrack
236
237	printf("Object name: %s Track type: %s\n", GetName(), GetTitle());
238	printf(" px = %f\n", Px());
239	printf(" py = %f\n", Py());
240	printf(" pz = %f\n", Pz());
241	printf(" pt = %f\n", Pt());
242	printf(" 1/pt = %f\n", OneOverPt());
243	printf(" theta = %f\n", Theta());
244	printf(" phi = %f\n", Phi());
245	printf(" chi2 = %f\n", Chi2());
246	printf(" charge = %d\n", Charge());
247	printf(" PID object: %p\n", PID());
248	}
249