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