]>
Commit | Line | Data |
---|---|---|
5d60c8f9 | 1 | // $Id$ |
2 | ||
3 | //___________________________________________________________________________ | |
4 | ///////////////////////////////////////////////////////////////////////////// | |
5 | // // | |
6 | // File reader for HLT tracks ESD // | |
7 | // // | |
8 | // loizides@ikf.uni-frankfurt.de // | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | #include <Riostream.h> | |
12 | #include <TMath.h> | |
13 | #include <TString.h> | |
14 | #include <TObjString.h> | |
15 | #include <TTree.h> | |
16 | #include <TFile.h> | |
17 | #include <AliESD.h> | |
18 | #include <AliESDtrack.h> | |
19 | #include <AliESDHLTtrack.h> | |
75a0c43e | 20 | #include <AliL3Track.h> |
46a140bc | 21 | #include <AliL3Vertex.h> |
04a02430 | 22 | #include <AliKalmanTrack.h> |
5d60c8f9 | 23 | #include <AliJetEventParticles.h> |
24 | #include "AliJetParticlesReaderHLT.h" | |
25 | ||
26 | ClassImp(AliJetParticlesReaderHLT) | |
27 | ||
28 | AliJetParticlesReaderHLT::AliJetParticlesReaderHLT(Bool_t bMapper, const Char_t* esdfilename) : | |
d9a296b1 | 29 | AliJetParticlesReaderESD(0,esdfilename), |
04a02430 | 30 | fTrackerType(bMapper), |
31 | fMinHits(0), | |
32 | fMinWeight(0) | |
5d60c8f9 | 33 | { |
34 | //constructor | |
35 | } | |
36 | ||
37 | /********************************************************************/ | |
38 | ||
39 | AliJetParticlesReaderHLT::AliJetParticlesReaderHLT( | |
40 | Bool_t bMapper, | |
41 | TObjArray* dirs, | |
42 | const Char_t* esdfilename) : | |
d9a296b1 | 43 | AliJetParticlesReaderESD(0,dirs,esdfilename), |
04a02430 | 44 | fTrackerType(bMapper), |
45 | fMinHits(0), | |
46 | fMinWeight(0) | |
47 | ||
5d60c8f9 | 48 | { |
49 | //constructor | |
50 | } | |
51 | ||
52 | /********************************************************************/ | |
53 | ||
54 | AliJetParticlesReaderHLT::~AliJetParticlesReaderHLT() | |
55 | { | |
56 | //desctructor | |
57 | } | |
58 | ||
59 | Int_t AliJetParticlesReaderHLT::ReadESD(AliESD* esd) | |
60 | { | |
61 | //Reads one ESD | |
62 | ||
63 | if (esd == 0) | |
64 | { | |
65 | Error("ReadESD","ESD is NULL"); | |
66 | return kFALSE; | |
67 | } | |
68 | ||
04a02430 | 69 | Float_t mf = esd->GetMagneticField(); |
70 | if (mf <= 0.0) | |
71 | { | |
72 | Error("ReadESD","Magnetic Field is 0. Skipping to next event."); | |
73 | return kFALSE; | |
74 | } | |
75 | AliKalmanTrack::SetMagneticField(mf/10.); | |
76 | ||
a86edc4e | 77 | Info("ReadESD","Reading Event %d",fCurrentDir*1000+fCurrentEvent); |
5d60c8f9 | 78 | if((!fOwner) || (fEventParticles==0)) |
79 | fEventParticles = new AliJetEventParticles(); | |
80 | ||
04a02430 | 81 | Int_t ntr=0; |
82 | if(fTrackerType){ | |
83 | ntr =esd->GetNumberOfHLTHoughTracks(); | |
84 | Info("ReadESD","Found %d conformal tracks.",ntr); | |
85 | } else { | |
86 | ntr=esd->GetNumberOfHLTHoughTracks(); | |
87 | Info("ReadESD","Found %d hough tracks.",ntr); | |
88 | } | |
89 | fEventParticles->Reset(ntr); | |
90 | ||
91 | TString headdesc=""; | |
92 | headdesc+="Run "; | |
93 | headdesc+=esd->GetRunNumber(); | |
94 | headdesc+=": Ev "; | |
95 | headdesc+=esd->GetEventNumber(); | |
96 | fEventParticles->SetHeader(headdesc); | |
97 | ||
5d60c8f9 | 98 | Double_t vertexpos[3];//vertex position |
99 | const AliESDVertex* kvertex = esd->GetVertex(); | |
100 | if (kvertex == 0) | |
101 | { | |
102 | Info("ReadESD","ESD returned NULL pointer to vertex - assuming (0.0,0.0,0.0)"); | |
103 | vertexpos[0] = 0.0; | |
104 | vertexpos[1] = 0.0; | |
105 | vertexpos[2] = 0.0; | |
106 | } | |
107 | else | |
108 | { | |
109 | kvertex->GetXYZ(vertexpos); | |
110 | } | |
111 | ||
112 | fEventParticles->SetVertex(vertexpos[0],vertexpos[1],vertexpos[2]); | |
74e5a625 | 113 | //cout << vertexpos[0] << " " << vertexpos[1] << " " << vertexpos[2] << endl; |
5d60c8f9 | 114 | |
75a0c43e | 115 | AliL3Track l3; |
46a140bc | 116 | AliL3Vertex v; |
117 | v.SetX(vertexpos[0]); | |
c5368c62 | 118 | v.SetY(vertexpos[1]); |
119 | v.SetZ(vertexpos[2]); | |
46a140bc | 120 | Double_t xc=0.,yc=0.,zc=0.; |
04a02430 | 121 | for (Int_t i = 0;i<ntr; i++) { |
122 | AliESDHLTtrack *kesdtrack; | |
123 | if(fTrackerType){ | |
124 | kesdtrack=esd->GetHLTConfMapTrack(i); | |
125 | } else { | |
126 | kesdtrack=esd->GetHLTHoughTrack(i); | |
127 | } | |
5d60c8f9 | 128 | |
04a02430 | 129 | if (kesdtrack == 0) |
5d60c8f9 | 130 | { |
131 | Error("ReadESD","Can not get track %d", i); | |
132 | continue; | |
133 | } | |
134 | ||
46a140bc | 135 | //const Float_t kpid=kesdtrack->GetPID(); |
136 | const Int_t knhits=kesdtrack->GetNHits(); | |
137 | const Int_t kweight=kesdtrack->GetWeight(); | |
138 | //cout << i << " " << kweight << " " << knhits << endl; | |
139 | if((fMinHits>0) && (knhits<fMinHits)) continue; | |
140 | if(kweight>1000) continue; //avoid ghosts | |
141 | if((fMinWeight>0) && (kweight<fMinWeight)) continue; | |
142 | ||
143 | Float_t px=kesdtrack->GetPx(); | |
144 | Float_t py=kesdtrack->GetPy(); | |
145 | Float_t pz=kesdtrack->GetPz(); | |
146 | ||
75a0c43e | 147 | if(fTrackerType){ |
148 | //if(!kesdtrack->ComesFromMainVertex()) continue; | |
74e5a625 | 149 | //cout << kesdtrack->GetPx() << " " << kesdtrack->GetPy() << " " << kesdtrack->GetPz() << endl; |
75a0c43e | 150 | l3.SetFirstPoint(kesdtrack->GetFirstPointX(),kesdtrack->GetFirstPointY(),kesdtrack->GetFirstPointZ()); |
151 | l3.SetLastPoint(kesdtrack->GetLastPointX(),kesdtrack->GetLastPointY(),kesdtrack->GetLastPointZ()); | |
152 | l3.SetCharge(kesdtrack->GetCharge()); | |
153 | l3.SetPt(kesdtrack->GetPt()); | |
154 | l3.SetTgl(kesdtrack->GetTgl()); | |
155 | l3.SetPsi(kesdtrack->GetPsi()); | |
156 | l3.CalculateHelix(); | |
46a140bc | 157 | l3.GetClosestPoint(&v,xc,yc,zc); |
158 | if(TMath::Abs(zc)>10.) continue; | |
159 | l3.SetFirstPoint(vertexpos[0],vertexpos[1],vertexpos[2]); | |
74e5a625 | 160 | //l3.CalculateHelix(); |
75a0c43e | 161 | l3.UpdateToFirstPoint(); |
46a140bc | 162 | px=l3.GetPx(); |
163 | py=l3.GetPy(); | |
164 | pz=l3.GetPz(); | |
74e5a625 | 165 | //cout << px << " " << py << " " << pz << endl; |
75a0c43e | 166 | } |
167 | ||
46a140bc | 168 | const Float_t kpt=TMath::Sqrt(px*px+py*py); |
169 | const Float_t kp=TMath::Sqrt(pz*pz+kpt*kpt); | |
170 | const Float_t keta=0.5*TMath::Log((kp+pz+1e-30)/(kp-pz+1e-30)); | |
171 | const Float_t kphi=TMath::Pi()+TMath::ATan2(-py,-px); | |
5d60c8f9 | 172 | |
04a02430 | 173 | if(IsAcceptedParticle(kpt,kphi,keta)) |
46a140bc | 174 | fEventParticles->AddParticle(px,py,pz,kp,i,kesdtrack->GetMCid(),knhits,kpt,kphi,keta); |
04a02430 | 175 | } //loop over tracks |
5d60c8f9 | 176 | |
5d60c8f9 | 177 | return kTRUE; |
178 | } |