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e2b3cee0 | 1 | #include "AliAnaTPCTrackBase.h"\r |
2 | //\r | |
3 | // This class is ment as a base class for doing analysis of\r | |
4 | // reconstructed TPC tracks in the AliAnalysisTask framework.\r | |
5 | //\r | |
6 | // The method FillTrackHistograms should be overloaded by the users\r | |
7 | // class and used to make cuts on tracks\r | |
8 | //\r | |
9 | // Questions, comments, or suggestions can be send to Peter Christiansen (Lund)\r | |
10 | // \r | |
11 | \r | |
12 | // ROOT includes\r | |
13 | #include <TChain.h>\r | |
14 | #include <TMath.h>\r | |
15 | \r | |
16 | // ALIROOT includes\r | |
17 | #include <AliAnalysisManager.h>\r | |
18 | #include <AliESDInputHandler.h>\r | |
19 | #include <AliESD.h>\r | |
20 | \r | |
21 | // STL includes\r | |
22 | #include <iostream>\r | |
23 | \r | |
24 | using namespace std;\r | |
25 | \r | |
26 | ClassImp(AliAnaTPCTrackBase)\r | |
27 | \r | |
28 | //________________________________________________________________________\r | |
29 | AliAnaTPCTrackBase::AliAnaTPCTrackBase() : \r | |
30 | AliAnalysisTask(), \r | |
31 | fESD(0), fESDfriend(0), fListOfHists(0)\r | |
32 | {\r | |
33 | //\r | |
34 | // Default constructor (should not be used)\r | |
35 | //\r | |
36 | fDebug = 0;\r | |
37 | SetMaxTracks();\r | |
38 | }\r | |
39 | \r | |
40 | //________________________________________________________________________\r | |
41 | AliAnaTPCTrackBase::AliAnaTPCTrackBase(const char *name) : \r | |
42 | AliAnalysisTask(name, "AliAnaTPCTrackBase"), \r | |
43 | fESD(0), fESDfriend(0), fListOfHists(0)\r | |
44 | {\r | |
45 | //\r | |
46 | // Normal constructor\r | |
47 | //\r | |
48 | \r | |
49 | // Input slot #0 works with a TChain\r | |
50 | DefineInput(0, TChain::Class());\r | |
51 | // Output slot #0 writes into a TList\r | |
52 | DefineOutput(0, TList::Class());\r | |
53 | \r | |
54 | fDebug = 0;\r | |
55 | SetMaxTracks();\r | |
56 | }\r | |
57 | \r | |
58 | //________________________________________________________________________\r | |
59 | void AliAnaTPCTrackBase::ConnectInputData(Option_t *) \r | |
60 | {\r | |
61 | //\r | |
62 | // Connect the input data\r | |
63 | //\r | |
64 | if(fDebug>3)\r | |
65 | cout << "AnalysisTaskTPCCluster::ConnectInputData()" << endl;\r | |
66 | \r | |
67 | AliESDInputHandler* esdH = (AliESDInputHandler*) \r | |
68 | ((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler());\r | |
69 | fESD = esdH->GetEvent();\r | |
70 | \r | |
71 | if(fESD==0) {\r | |
72 | \r | |
73 | cout << endl << "WARNING: NO ESD event found" << endl << endl;\r | |
74 | } else {\r | |
75 | \r | |
76 | fESDfriend = \r | |
77 | (AliESDfriend*)fESD->FindListObject("AliESDfriend"); \r | |
78 | \r | |
79 | if(fESDfriend==0) {\r | |
80 | \r | |
81 | cout << endl << "WARNING: NO ESD friend found" << endl << endl;\r | |
82 | }\r | |
83 | }\r | |
84 | }\r | |
85 | \r | |
86 | //________________________________________________________________________\r | |
87 | void AliAnaTPCTrackBase::CreateOutputObjects() \r | |
88 | {\r | |
89 | //\r | |
90 | // Connect the output objects\r | |
91 | //\r | |
92 | if(fDebug>3)\r | |
93 | cout << "AnalysisTaskTPCCluster::CreateOutputObjects()" << endl;\r | |
94 | \r | |
95 | OpenFile(0);\r | |
96 | fListOfHists = new TList();\r | |
97 | \r | |
98 | hESDTracks = \r | |
99 | new TH1F("hESDTracks", \r | |
100 | "Number of ESD tracks per event; N ESD tracks; Counts", \r | |
101 | TMath::Min(fMaxTracks, 100), 0, fMaxTracks);\r | |
102 | fListOfHists->Add(hESDTracks);\r | |
103 | \r | |
104 | hGoodTracks = \r | |
105 | new TH1F("hGoodTracks", \r | |
106 | "Number of Good tracks per event; N good tracks; Counts", \r | |
107 | TMath::Min(fMaxTracks, 100), 0, fMaxTracks);\r | |
108 | fListOfHists->Add(hGoodTracks);\r | |
109 | }\r | |
110 | \r | |
111 | \r | |
112 | //________________________________________________________________________\r | |
113 | void AliAnaTPCTrackBase::Exec(Option_t *) {\r | |
114 | //\r | |
115 | // Execute analysis for current event \r | |
116 | // For the moment I require that mcTruth is there! I am afraid to\r | |
117 | // get out of sync if it is missing for some events since I use the\r | |
118 | // number of MC events for normalisation\r | |
119 | //\r | |
120 | \r | |
121 | if(fDebug>3)\r | |
122 | cout << "AliAnaTPCTrackBase::Exec()" << endl;\r | |
123 | \r | |
124 | if(fESD==0 || fESDfriend==0) {\r | |
125 | \r | |
126 | cout << "AliAnaTPCTrackBase::Exec(): WARNING: fESD=" << fESD \r | |
127 | << ", fESDfriend=" << fESDfriend << endl;\r | |
128 | // Post final data. It will be written to a file with option "RECREATE"\r | |
129 | PostData(0, fListOfHists);\r | |
130 | return;\r | |
131 | }\r | |
132 | \r | |
133 | fESD->SetESDfriend(fESDfriend);\r | |
134 | const Int_t nESDTracks = fESD->GetNumberOfTracks();\r | |
135 | \r | |
136 | if(fDebug>0)\r | |
137 | cout << " Number of ESD tracks: " << nESDTracks << endl;\r | |
138 | \r | |
139 | if ( nESDTracks != fESDfriend->GetNumberOfTracks() ) {\r | |
140 | AliWarning("Number of Tracks differs from Number of Friend-Tracks!");\r | |
141 | printf("Number of tracks: %i, number of friend tracks: %i \n", nESDTracks, fESDfriend->GetNumberOfTracks());\r | |
142 | return;\r | |
143 | }\r | |
144 | \r | |
145 | hESDTracks->Fill(nESDTracks);\r | |
146 | Int_t nGoodTracks = 0;\r | |
147 | \r | |
148 | for(Int_t i = 0; i < nESDTracks; i++) {\r | |
149 | \r | |
150 | AliESDtrack* track = (AliESDtrack*)fESD->GetTrack(i);\r | |
151 | AliESDfriendTrack* friendTrack = (AliESDfriendTrack*) track->GetFriendTrack();\r | |
152 | AliTPCseed* seed = 0;\r | |
153 | \r | |
154 | if(friendTrack) {\r | |
155 | TObject *cobject = 0;\r | |
156 | for (Int_t i = 0; ; i++){\r | |
157 | cobject = friendTrack->GetCalibObject(i);\r | |
158 | if (!cobject) break;\r | |
159 | seed = dynamic_cast<AliTPCseed*>(cobject);\r | |
160 | if (seed) break;\r | |
161 | }\r | |
162 | if (!seed && fDebug>1) Error("Exec", "No seed found!!!");\r | |
163 | }\r | |
164 | else if (fDebug>1) Error("Exec", "No friend track found!!!");\r | |
165 | \r | |
166 | Int_t accepted = FillTrackHistograms(nESDTracks, track, friendTrack, seed);\r | |
167 | \r | |
168 | if(accepted) {\r | |
169 | if(fDebug>1)\r | |
170 | cout << "Track " << i << " was accepted" << endl;\r | |
171 | nGoodTracks++;\r | |
172 | } else {\r | |
173 | \r | |
174 | if(fDebug>1)\r | |
175 | cout << "Track " << i << " was rejected" << endl;\r | |
176 | }\r | |
177 | }\r | |
178 | \r | |
179 | hGoodTracks->Fill(nGoodTracks);\r | |
180 | \r | |
181 | // Post final data. It will be written to a file with option "RECREATE"\r | |
182 | PostData(0, fListOfHists);\r | |
183 | } \r | |
184 | \r | |
185 | //________________________________________________________________________\r | |
186 | Int_t AliAnaTPCTrackBase::FillTrackHistograms(Int_t nTracks, AliESDtrack* track, AliESDfriendTrack* friendTrack, AliTPCseed* seed) {\r | |
187 | //\r | |
188 | // This method should be overloaded and used to make cuts on tracks\r | |
189 | // and fill histograms. \r | |
190 | // return 0 if track was rejected, 1 if accepted\r | |
191 | //\r | |
192 | \r | |
193 | if(nTracks && track && friendTrack && seed)\r | |
194 | return 1;\r | |
195 | else\r | |
196 | return 0;\r | |
197 | }\r | |
198 | \r | |
199 | //________________________________________________________________________\r | |
200 | void AliAnaTPCTrackBase::Terminate(Option_t *) {\r | |
201 | //\r | |
202 | // Terminate loop\r | |
203 | //\r | |
204 | if(fDebug>3)\r | |
205 | printf("AliAnaTPCTrackBase: Terminate() \n");\r | |
206 | }\r |