/[PAMELA software]/PamelaLevel2/doc/examples/My-Histos-0.cpp
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Contents of /PamelaLevel2/doc/examples/My-Histos-0.cpp

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Revision 1.2 - (show annotations) (download)
Mon Jan 15 11:51:39 2007 UTC (17 years, 10 months ago) by pam-fi
Branch: MAIN
Changes since 1.1: +16 -40 lines
v3r00 **NEW**

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 float caloangx = 0;
68 float caloangy = 0;
69
70 CaloStrip top = CaloStrip();
71 top.Set(0,0,48);
72 float zcalotop = top.GetZ();
73
74
75
76 // ----------------------------------
77 // tracker variables
78 // ----------------------------------
79
80 float resangx = -999;
81 float resangy = -999;
82 if( event->GetTrkLevel2()->GetNTracks()==1 ){
83
84 PamTrack *track = event->GetTrack(0);
85 if( track->GetTrkTrack()->chi2 >0 ){
86
87 Float_t ztraj[13];
88
89 Int_t i=0;
90 ztraj[i++] = event->GetToFLevel2()->GetZTOF(11);
91 ztraj[i++] = event->GetToFLevel2()->GetZTOF(12);
92 ztraj[i++] = event->GetToFLevel2()->GetZTOF(21);
93 ztraj[i++] = event->GetToFLevel2()->GetZTOF(22);
94 ztraj[i++] = event->GetTrkLevel2()->GetZTrk(1);
95 ztraj[i++] = event->GetTrkLevel2()->GetZTrk(2);
96 ztraj[i++] = event->GetTrkLevel2()->GetZTrk(3);
97 ztraj[i++] = event->GetTrkLevel2()->GetZTrk(4);
98 ztraj[i++] = event->GetTrkLevel2()->GetZTrk(5);
99 ztraj[i++] = event->GetTrkLevel2()->GetZTrk(6);
100 ztraj[i++] = event->GetToFLevel2()->GetZTOF(31);
101 ztraj[i++] = event->GetToFLevel2()->GetZTOF(32);
102 ztraj[i++] = zcalotop;
103 Trajectory traj = Trajectory(13,ztraj);
104 traj.DoTrack2( track->GetTrkTrack()->al );
105
106 resangx = caloangx - traj.thx[12];
107 resangy = caloangy - traj.thy[12];
108
109 }
110 }
111
112 // ----------------------------------
113 // fill histograms
114 // ----------------------------------
115 hresangx->Fill(resangx);
116 hresangy->Fill(resangy);
117
118
119 }
120 //===============================================================
121 // Save histograms
122 //===============================================================
123 void SaveHistos( TFile * outf ){
124
125 gROOT->cd();
126 // ----------------------------------
127 // retrieve histos
128 // ----------------------------------
129 // hresangx = dynamic_cast<TH1F*>(gDirectory->FindObject("hresangx"));
130 // hresangy = dynamic_cast<TH1F*>(gDirectory->FindObject("hresangy"));
131
132 // ----------------------------------
133 // save on file
134 // ----------------------------------
135
136 outf->cd();
137
138 if(hresangx) hresangx->Write();
139 if(hresangy) hresangy->Write();
140 }
141

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