/[PAMELA software]/PamelaLevel2/doc/examples/My-Histos.cpp
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Contents of /PamelaLevel2/doc/examples/My-Histos.cpp

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Revision 1.1 - (show annotations) (download)
Mon Dec 11 18:26:55 2006 UTC (18 years ago) by pam-fi
Branch: MAIN
examples

1 ////////////////////////////////////////////////////////////////
2 //
3 // Histogram set for tracker-efficiency study.
4 //
5 // It contains the functions:
6 //
7 // - CreateHistos()
8 // - FillHistos(PamLevel2* event)
9 // - Save Histos()
10 //
11 // Usage (example):
12 // [] .L My-histo-set-macro.C+
13 // [] .L My-selection.C+
14 // [] .L Loop.C+
15 // [] Loop("data-dir/","file-list.txt",100000,"+ALL fillTree fillHistos","output-file.root")
16 //
17 ////////////////////////////////////////////////////////////////
18
19 #if !defined(__CINT__) || defined(__MAKECINT__)
20
21 #include <TString.h>
22 #include <TH1F.h>
23 #include <TH2F.h>
24 #include <TMath.h>
25 #include <TLine.h>
26 #include <TPolyMarker.h>
27 #include <TSelector.h>
28 #include <TFile.h>
29
30 #include <stdlib.h>
31 #include <iostream>
32 using namespace std;
33
34 #include <PamLevel2.h>
35 #include <CaloAxis.h>
36
37 #endif
38 //======================
39 // HITOGRAMS declaration
40 //======================
41 TH1F *hresangx;
42 TH1F *hresangy;
43 //===============================================================
44 // Create histograms
45 //===============================================================
46 void CreateHistos( TFile* outf ){
47
48 gROOT->cd();//create histos in memory
49
50 hresangx = new TH1F("hresangx","Angular residual on the top calo plane (x)",400,-40.,40.);
51 hresangy = new TH1F("hresangy","Angular residual on the top calo plane (y)",400,-40.,40.);
52
53 }
54
55 //===============================================================
56 // Fill histograms (called event-by-event)
57 //===============================================================
58
59 void FillHistos( PamLevel2* event ){
60 // ----------------------------------
61 // retrieve histos
62 // ----------------------------------
63 // hresangx = dynamic_cast<TH1F*>(gDirectory->FindObject("hresangx"));
64 // hresangy = dynamic_cast<TH1F*>(gDirectory->FindObject("hresangy"));
65
66 // ----------------------------------
67 // calo variables
68 // ----------------------------------
69 CaloAxis *x_axis = new CaloAxis();
70 CaloAxis *y_axis = new CaloAxis();
71
72 float rcil = 1.;// tolerance (cm)
73 x_axis->FitAxis(event->GetCaloLevel1(),0,rcil);
74 y_axis->FitAxis(event->GetCaloLevel1(),1,rcil);
75
76 float qtrack = x_axis->GetQaxis()+y_axis->GetQaxis();
77 int ntrack = x_axis->GetN()+y_axis->GetN();
78
79 float caloangx = (float)atan((double)x_axis->par[1])*180./3.1415026;
80 float caloangy = (float)atan((double)y_axis->par[1])*180./3.1415026;
81
82 CaloStrip top = CaloStrip();
83 top.Set(0,0,48);
84 float zcalotop = top.GetZ();
85
86 // ----------------------------------
87 // tof variables
88 // ----------------------------------
89 // get track stored by the tof
90 ToFTrkVar *tof = event->GetToFStoredTrack(-1);
91 if(!tof){
92 cout << " no ToF-track stored "<<endl;
93 return;
94 }
95
96 // ----------------------------------
97 // tracker variables
98 // ----------------------------------
99
100 float resangx = -999;
101 float resangy = -999;
102 if( event->GetNTracks()==1 ){
103
104 PamTrack *track = event->GetTrack(0);
105 if( track->chi2 >0 ){
106
107 Float_t ztraj[13];
108
109 Int_t i=0;
110 ztraj[i++] = event->GetZTOF(11);
111 ztraj[i++] = event->GetZTOF(12);
112 ztraj[i++] = event->GetZTOF(21);
113 ztraj[i++] = event->GetZTOF(22);
114 ztraj[i++] = event->GetZTrk(1);
115 ztraj[i++] = event->GetZTrk(2);
116 ztraj[i++] = event->GetZTrk(3);
117 ztraj[i++] = event->GetZTrk(4);
118 ztraj[i++] = event->GetZTrk(5);
119 ztraj[i++] = event->GetZTrk(6);
120 ztraj[i++] = event->GetZTOF(31);
121 ztraj[i++] = event->GetZTOF(32);
122 ztraj[i++] = zcalotop;
123 Trajectory traj = Trajectory(13,ztraj);
124 traj.DoTrack2( track->al );
125
126 resangx = caloangx - traj.thx[12];
127 resangy = caloangy - traj.thy[12];
128
129 }
130 if(track) delete track;
131 }
132
133 // ----------------------------------
134 // fill histograms
135 // ----------------------------------
136 hresangx->Fill(resangx);
137 hresangy->Fill(resangy);
138
139
140 }
141 //===============================================================
142 // Save histograms
143 //===============================================================
144 void SaveHistos( TFile * outf ){
145
146 gROOT->cd();
147 // ----------------------------------
148 // retrieve histos
149 // ----------------------------------
150 // hresangx = dynamic_cast<TH1F*>(gDirectory->FindObject("hresangx"));
151 // hresangy = dynamic_cast<TH1F*>(gDirectory->FindObject("hresangy"));
152
153 // ----------------------------------
154 // save on file
155 // ----------------------------------
156
157 outf->cd();
158
159 if(hresangx) hresangx->Write();
160 if(hresangy) hresangy->Write();
161 }
162

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