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printHits.C
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2017 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 #include <TTreeReader.h>
10 #include <TTreeReaderValue.h>
11 #include "TFile.h"
12 #include "TH1F.h"
13 #include "TH2F.h"
14 #include "TProfile.h"
15 #include "TROOT.h"
16 #include "TTree.h"
17 
18 // This root script creates different histograms displaying the sensitive
19 // material, the boundaries and the material of the detector in different views.
20 // The in file needs to be in the format created form the ExtrapolationTest.
21 // To plot two or three histograms of this kind in one canvas the root script
22 // "compareHistogram.C" can be used.
23 
24 void
25 printHits(std::string inFile,
26  std::string treeName,
27  std::string outFile,
28  float rmin,
29  float rmax,
30  float zmin,
31  float zmax,
32  int nBins)
33 {
34  std::cout << "Opening file: " << inFile << std::endl;
35  TFile inputFile(inFile.c_str());
36  std::cout << "Reading tree: " << treeName << std::endl;
37  TTree* tree = (TTree*)inputFile.Get(treeName.c_str());
38 
39  TTreeReader reader(treeName.c_str(), &inputFile);
40 
41  int nHits;
42  float eta;
43  float theta;
44  float zDir;
45 
46  std::vector<float>* x = new std::vector<float>;
47  std::vector<float>* y = new std::vector<float>;
48  std::vector<float>* z = new std::vector<float>;
49  std::vector<float>* sens = new std::vector<float>;
50  std::vector<float>* mat = new std::vector<float>;
51  std::vector<float>* bounds = new std::vector<float>;
52 
53  tree->SetBranchAddress("step_x", &x);
54  tree->SetBranchAddress("step_y", &y);
55  tree->SetBranchAddress("step_z", &z);
56  tree->SetBranchAddress("sensitive", &sens);
57 
58  if (tree->FindBranch("boundary")) {
59  std::cout << "No BoundarySteps are given." << std::endl;
60  tree->SetBranchAddress("boundary", &bounds);
61  }
62  if (tree->FindBranch("material")) {
63  std::cout << "No MaterialSteps are given." << std::endl;
64  tree->SetBranchAddress("material", &mat);
65  }
66  Int_t entries = tree->GetEntries();
67  std::cout << "Creating new output file: " << outFile
68  << " and writing out histograms. " << std::endl;
69  TFile outputFile(outFile.c_str(), "recreate");
70 
71  // full
72  TH2F* Full_xy = new TH2F(
73  "Full_xy", "Full material", nBins, rmin, rmax, nBins, rmin, rmax);
74  TH2F* Full_zr = new TH2F(
75  "Full_zr", "Full material", nBins, zmin, zmax, nBins, 0., rmax);
76 
77  // sensitive
78  TH2F* Sens_xy = new TH2F(
79  "Sens_xy", "Sensitive material", nBins, rmin, rmax, nBins, rmin, rmax);
80  Sens_xy->GetXaxis()->SetTitle("x [mm]");
81  Sens_xy->GetYaxis()->SetTitle("y [mm]");
82  TH2F* Sens_zx = new TH2F(
83  "Sens_zx", "Sensitive material", nBins, zmin, zmax, nBins, rmin, rmax);
84  Sens_zx->GetXaxis()->SetTitle("z [mm]");
85  Sens_zx->GetYaxis()->SetTitle("x [mm]");
86  TH2F* Sens_zy = new TH2F(
87  "Sens_zy", "Sensitive material", nBins, zmin, zmax, nBins, rmin, rmax);
88  Sens_zy->GetXaxis()->SetTitle("z [mm]");
89  Sens_zy->GetYaxis()->SetTitle("y [mm]");
90  TH2F* Sens_zr = new TH2F(
91  "Sens_zr", "Sensitive material", nBins, zmin, zmax, nBins, 0., rmax);
92  Sens_zr->GetXaxis()->SetTitle("z [mm]");
93  Sens_zr->GetYaxis()->SetTitle("r [mm]");
94 
95  // boundaries
96  TH2F* Bounds_xy = new TH2F(
97  "Bounds_xy", "Boundaries", nBins, rmin, rmax, nBins, rmin, rmax);
98  Bounds_xy->GetXaxis()->SetTitle("x [mm]");
99  Bounds_xy->GetYaxis()->SetTitle("y [mm]");
100  TH2F* Bounds_zx = new TH2F(
101  "Bounds_zx", "Boundaries", nBins, zmin, zmax, nBins, rmin, rmax);
102  Bounds_zx->GetXaxis()->SetTitle("z [mm]");
103  Bounds_zx->GetYaxis()->SetTitle("x [mm]");
104  TH2F* Bounds_zy = new TH2F(
105  "Bounds_zy", "Boundaries", nBins, zmin, zmax, nBins, rmin, rmax);
106  Bounds_zy->GetXaxis()->SetTitle("z [mm]");
107  Bounds_zy->GetYaxis()->SetTitle("y [mm]");
108  TH2F* Bounds_zr
109  = new TH2F("Bounds_zr", "Boundaries", nBins, zmin, zmax, nBins, 0., rmax);
110  Bounds_zr->GetXaxis()->SetTitle("z [mm]");
111  Bounds_zr->GetYaxis()->SetTitle("r [mm]");
112 
113  // material
114  TH2F* Mat_xy
115  = new TH2F("Mat_xy", "Material", nBins, rmin, rmax, nBins, rmin, rmax);
116  Mat_xy->GetXaxis()->SetTitle("x [mm]");
117  Mat_xy->GetYaxis()->SetTitle("y [mm]");
118  TH2F* Mat_zx
119  = new TH2F("Mat_zx", "Material", nBins, zmin, zmax, nBins, rmin, rmax);
120  Mat_zx->GetXaxis()->SetTitle("z [mm]");
121  Mat_zx->GetYaxis()->SetTitle("x [mm]");
122  TH2F* Mat_zy
123  = new TH2F("Mat_zy", "Material", nBins, zmin, zmax, nBins, rmin, rmax);
124  Mat_zy->GetXaxis()->SetTitle("z [mm]");
125  Mat_zy->GetYaxis()->SetTitle("y [mm]");
126  TH2F* Mat_zr
127  = new TH2F("Mat_zr", "Material", nBins, zmin, zmax, nBins, 0., rmax);
128  Mat_zr->GetXaxis()->SetTitle("z [mm]");
129  Mat_zr->GetYaxis()->SetTitle("r [mm]");
130 
131  for (int i = 0; i < entries; i++) {
132  tree->GetEvent(i);
133 
134  for (int j = 0; j < x->size(); j++) {
135  // sensitive
136  if (z->at(j) >= zmin && z->at(j) <= zmax) {
137  Sens_xy->Fill(x->at(j), y->at(j), sens->at(j));
138  Full_xy->Fill(x->at(j), y->at(j));
139  }
140  Sens_zx->Fill(z->at(j), x->at(j), sens->at(j));
141  Sens_zy->Fill(z->at(j), y->at(j), sens->at(j));
142  Sens_zr->Fill(z->at(j), std::hypot(x->at(j), y->at(j)));
143  Full_zr->Fill(z->at(j), std::hypot(x->at(j), y->at(j)));
144 
145  // boundaries
146  if (tree->FindBranch("boundary")) {
147  if (z->at(j) >= zmin && z->at(j) <= zmax)
148  Bounds_xy->Fill(x->at(j), y->at(j), bounds->at(j));
149  Bounds_zx->Fill(z->at(j), x->at(j), bounds->at(j));
150  Bounds_zy->Fill(z->at(j), y->at(j), bounds->at(j));
151  Bounds_zr->Fill(z->at(j),
152  std::hypot(x->at(j), y->at(j)),
153  bounds->at(j));
154  }
155  // material
156  if (tree->FindBranch("material")) {
157  if (z->at(j) >= zmin && z->at(j) <= zmax)
158  Mat_xy->Fill(x->at(j), y->at(j), mat->at(j));
159  Mat_zx->Fill(z->at(j), x->at(j), mat->at(j));
160  Mat_zy->Fill(z->at(j), y->at(j), mat->at(j));
161  Mat_zr->Fill(z->at(j),
162  std::hypot(x->at(j), y->at(j)),
163  mat->at(j));
164  }
165  }
166  }
167  inputFile.Close();
168 
169  // full
170  Full_xy->Write();
171  delete Full_xy;
172  Full_zr->Write();
173  delete Full_zr;
174 
175  // sensitive
176  Sens_xy->Write();
177  delete Sens_xy;
178  Sens_zx->Write();
179  delete Sens_zx;
180  Sens_zy->Write();
181  delete Sens_zy;
182  Sens_zr->Write();
183  delete Sens_zr;
184 
185  // boundaries
186  Bounds_xy->Write();
187  delete Bounds_xy;
188  Bounds_zx->Write();
189  delete Bounds_zx;
190  Bounds_zy->Write();
191  delete Bounds_zy;
192  Bounds_zr->Write();
193  delete Bounds_zr;
194 
195  // material
196  Mat_xy->Write();
197  delete Mat_xy;
198  Mat_zx->Write();
199  delete Mat_zx;
200  Mat_zy->Write();
201  delete Mat_zy;
202  Mat_zr->Write();
203  delete Mat_zr;
204 
205  delete x;
206  delete y;
207  delete z;
208  delete sens;
209  delete bounds;
210  delete mat;
211 
212  outputFile.Close();
213 }