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1dfe075f | 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 | **************************************************************************/ | |
0b28fd57 | 15 | |
16 | /* $Id$ */ | |
17 | ||
1dfe075f | 18 | //_________________________________________________________________________ |
19 | // A test analysis task to check the pt of tracks distribution in simulated data | |
20 | // | |
21 | //*-- Panos | |
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | ||
0b28fd57 | 24 | #include <TCanvas.h> |
1dfe075f | 25 | #include <TChain.h> |
1dfe075f | 26 | #include <TFile.h> |
0b28fd57 | 27 | #include <TH1.h> |
28 | #include <TROOT.h> | |
1dfe075f | 29 | #include <TSystem.h> |
1f588058 | 30 | #include <TString.h> |
1dfe075f | 31 | |
32 | #include "AliAnalysisTaskPt.h" | |
33 | #include "AliESD.h" | |
34 | #include "AliLog.h" | |
35 | ||
36 | //________________________________________________________________________ | |
37 | AliAnalysisTaskPt::AliAnalysisTaskPt(const char *name) : | |
38 | AliAnalysisTask(name,""), | |
5effd3c6 | 39 | fChain(0), |
1dfe075f | 40 | fESD(0), |
5effd3c6 | 41 | fhPt(0), |
42 | fOutputContainer(0) | |
1dfe075f | 43 | { |
44 | // Constructor. | |
45 | // Input slot #0 works with an Ntuple | |
46 | DefineInput(0, TChain::Class()); | |
47 | // Output slot #0 writes into a TH1 container | |
48 | DefineOutput(0, TObjArray::Class()); | |
49 | } | |
50 | ||
51 | //________________________________________________________________________ | |
c52c2132 | 52 | void AliAnalysisTaskPt::ConnectInputData(Option_t *) |
1dfe075f | 53 | { |
54 | // Initialisation of branch container and histograms | |
55 | ||
56 | AliInfo(Form("*** Initialization of %s", GetName())) ; | |
57 | ||
58 | // Get input data | |
59 | fChain = dynamic_cast<TChain *>(GetInputData(0)) ; | |
60 | if (!fChain) { | |
61 | AliError(Form("Input 0 for %s not found\n", GetName())); | |
62 | return ; | |
63 | } | |
64 | ||
c52c2132 | 65 | // One should first check if the branch address was taken by some other task |
66 | char ** address = (char **)GetBranchAddress(0, "ESD"); | |
67 | if (address) { | |
68 | fESD = (AliESD*)(*address); | |
69 | } else { | |
70 | fESD = new AliESD(); | |
71 | SetBranchAddress(0, "ESD", &fESD); | |
1dfe075f | 72 | } |
c52c2132 | 73 | } |
1dfe075f | 74 | |
c52c2132 | 75 | //________________________________________________________________________ |
76 | void AliAnalysisTaskPt::CreateOutputObjects() | |
77 | { | |
78 | // create histograms | |
1e20f195 | 79 | |
80 | OpenFile(0) ; | |
81 | ||
1dfe075f | 82 | fhPt = new TH1F("fhPt","This is the Pt distribution",15,0.1,3.1); |
83 | fhPt->SetStats(kTRUE); | |
84 | fhPt->GetXaxis()->SetTitle("P_{T} [GeV]"); | |
85 | fhPt->GetYaxis()->SetTitle("#frac{dN}{dP_{T}}"); | |
86 | fhPt->GetXaxis()->SetTitleColor(1); | |
87 | fhPt->SetMarkerStyle(kFullCircle); | |
88 | ||
89 | // create output container | |
90 | ||
91 | fOutputContainer = new TObjArray(1) ; | |
92 | fOutputContainer->SetName(GetName()) ; | |
93 | ||
94 | fOutputContainer->AddAt(fhPt, 0) ; | |
95 | } | |
96 | ||
97 | //________________________________________________________________________ | |
98 | void AliAnalysisTaskPt::Exec(Option_t *) | |
99 | { | |
100 | // Processing of one event | |
101 | ||
102 | Long64_t entry = fChain->GetReadEntry() ; | |
103 | ||
104 | if (!fESD) { | |
105 | AliError("fESD is not connected to the input!") ; | |
106 | return ; | |
107 | } | |
108 | ||
109 | if ( !((entry-1)%100) ) | |
110 | AliInfo(Form("%s ----> Processing event # %lld", (dynamic_cast<TChain *>(fChain))->GetFile()->GetName(), entry)) ; | |
111 | ||
112 | //************************ Pt tracks ************************************* | |
113 | ||
114 | for(Int_t iTracks = 0; iTracks < fESD->GetNumberOfTracks(); iTracks++) { | |
115 | AliESDtrack * ESDTrack = fESD->GetTrack(iTracks); | |
116 | Double_t momentum[3]; | |
117 | ESDTrack->GetPxPyPz(momentum); | |
118 | Double_t Pt = sqrt(pow(momentum[0],2) + pow(momentum[1],2)); | |
119 | fhPt->Fill(Pt); | |
120 | }//track loop | |
121 | ||
122 | PostData(0, fOutputContainer); | |
123 | } | |
124 | ||
125 | //________________________________________________________________________ | |
126 | void AliAnalysisTaskPt::Terminate(Option_t *) | |
127 | { | |
128 | // Processing when the event loop is ended | |
84eb42a1 | 129 | |
2704006a | 130 | Bool_t problem=kFALSE; |
131 | ||
84eb42a1 | 132 | AliInfo(Form(" *** %s Report:", GetName())) ; |
133 | ||
1dfe075f | 134 | TCanvas *c1 = new TCanvas("c1","Pt",10,10,310,310); |
135 | c1->SetFillColor(10); | |
136 | c1->SetHighLightColor(10); | |
137 | ||
138 | c1->cd(1)->SetLeftMargin(0.15); | |
139 | c1->cd(1)->SetBottomMargin(0.15); | |
84eb42a1 | 140 | if (fhPt->GetMaximum() > 0 ) |
141 | c1->cd(1)->SetLogy(); | |
c52c2132 | 142 | fOutputContainer = (TObjArray*)GetOutputData(0); |
143 | fhPt = (TH1F*)fOutputContainer->At(0); | |
144 | if (fhPt) fhPt->DrawCopy("E"); | |
1dfe075f | 145 | |
146 | c1->Print("TracksPt.eps"); | |
147 | ||
148 | char line[1024] ; | |
84eb42a1 | 149 | sprintf(line, ".!tar -zcf %s.tar.gz *.eps", GetName()) ; |
1dfe075f | 150 | gROOT->ProcessLine(line); |
151 | sprintf(line, ".!rm -fR *.eps"); | |
152 | gROOT->ProcessLine(line); | |
153 | ||
2704006a | 154 | AliInfo(Form("!!! All the eps files are in %s.tar.gz !!!", GetName())) ; |
155 | ||
1f588058 | 156 | TString report ; |
2704006a | 157 | if(problem) |
158 | report="Problems found, please check!!!"; | |
159 | else | |
160 | report="OK"; | |
161 | ||
1f588058 | 162 | AliInfo(Form("*** %s Summary Report: %s \n",GetName(), report.Data())) ; |
1dfe075f | 163 | } |