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PHG4ScoringManager.cc
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1 // $Id: $
2 
11 #include "PHG4ScoringManager.h"
12 
13 #include "PHG4InEvent.h"
14 #include "PHG4Particle.h"
15 
16 #include <phhepmc/PHHepMCGenEvent.h>
17 #include <phhepmc/PHHepMCGenEventMap.h>
18 
19 #include <fun4all/Fun4AllBase.h> // for Fun4AllBase::VERBO...
20 #include <fun4all/Fun4AllHistoManager.h>
21 #include <fun4all/Fun4AllReturnCodes.h>
22 #include <fun4all/Fun4AllServer.h>
23 #include <fun4all/PHTFileServer.h>
24 
25 #include <phool/getClass.h>
26 
27 #include <HepMC/SimpleVector.h> // for FourVector
28 
29 #include <TAxis.h> // for TAxis
30 #include <TDatabasePDG.h>
31 #include <TH1.h>
32 #include <TH3.h> // for TH3, TH3D
33 #include <TNamed.h> // for TNamed
34 #include <TParticlePDG.h> // for TParticlePDG
35 #include <TVector3.h>
36 
37 #include <Geant4/G4RunManager.hh>
38 #include <Geant4/G4ScoringManager.hh>
39 #include <Geant4/G4String.hh> // for G4String
40 #include <Geant4/G4SystemOfUnits.hh>
41 #include <Geant4/G4THitsMap.hh> // for G4THitsMap
42 #include <Geant4/G4ThreeVector.hh> // for G4ThreeVector
43 #include <Geant4/G4Types.hh> // for G4int, G4double
44 #include <Geant4/G4UImanager.hh>
45 #include <Geant4/G4VScoringMesh.hh> // for G4VScoringMesh
46 #include <Geant4/G4Version.hh>
47 
48 #include <boost/format.hpp>
49 
50 #include <cassert>
51 #include <cmath> // for fabs, M_PI
52 #include <iostream>
53 #include <limits> // for numeric_limits
54 #include <map> // for _Rb_tree_const_ite...
55 #include <utility> // for pair
56 
57 using namespace std;
58 
59 PHG4ScoringManager::PHG4ScoringManager()
60  : SubsysReco("PHG4ScoringManager")
61 {
62 }
63 
64 int PHG4ScoringManager::InitRun(PHCompositeNode */*topNode*/)
65 {
66  //1. check G4RunManager
67  G4RunManager *runManager = G4RunManager::GetRunManager();
68  if (runManager == nullptr)
69  {
70  cout << "PHG4ScoringManager::InitRun - fatal error: G4RunManager was not initialized yet. Please do include the Geant4 simulation in this Fun4All run." << endl;
71  return Fun4AllReturnCodes::ABORTRUN;
72  }
73 
74  //2. Init scoring manager
75  G4ScoringManager *scoringManager = G4ScoringManager::GetScoringManager();
76  assert(scoringManager);
77 
78  //3. run scoring commands
79  G4UImanager *UImanager = G4UImanager::GetUIpointer();
80  assert(UImanager);
81 
82  for (const string &cmd : m_commands)
83  {
84  if (Verbosity() >= VERBOSITY_SOME)
85  {
86  cout << "PHG4ScoringManager::InitRun - execute Geatn4 command: " << cmd << endl;
87  }
88  UImanager->ApplyCommand(cmd.c_str());
89  }
90 
91  //4 init IOs
92  if (Verbosity() >= VERBOSITY_SOME)
93  cout << "PHG4ScoringManager::InitRun - Making PHTFileServer " << m_outputFileName
94  << endl;
95  PHTFileServer::get().open(m_outputFileName, "RECREATE");
96 
97  Fun4AllHistoManager *hm = getHistoManager();
98  assert(hm);
99  TH1D *h = new TH1D("hNormalization", //
100  "Normalization;Items;Summed quantity", 10, .5, 10.5);
101  int i = 1;
102  h->GetXaxis()->SetBinLabel(i++, "Event count");
103  h->GetXaxis()->SetBinLabel(i++, "Collision count");
104  h->GetXaxis()->SetBinLabel(i++, "Event count accepted");
105  h->GetXaxis()->SetBinLabel(i++, "Collision count accepted");
106  // h->GetXaxis()->SetBinLabel(i++, "G4Hit count");
107  h->GetXaxis()->LabelsOption("v");
108  hm->registerHisto(h);
109 
110  hm->registerHisto(new TH1D("hNChEta", //
111  "Charged particle #eta distribution;#eta;Count",
112  1000, -5, 5));
113 
114  hm->registerHisto(new TH1D("hVertexZ", //
115  "Vertex z distribution;z [cm];Count",
116  10000, m_vertexHistRange.first, m_vertexHistRange.second));
117 
118  return Fun4AllReturnCodes::EVENT_OK;
119 }
120 
121 //_________________________________________________________________
122 void PHG4ScoringManager::G4Command(const string &cmd)
123 {
124  m_commands.push_back(cmd);
125  return;
126 }
127 //_________________________________________________________________
128 
129 //_________________________________________________________________
130 int PHG4ScoringManager::process_event(PHCompositeNode *topNode)
131 {
132  Fun4AllHistoManager *hm = getHistoManager();
133  assert(hm);
134 
135  TH1D *h_norm = dynamic_cast<TH1D *>(hm->getHisto("hNormalization"));
136  assert(h_norm);
137 
138  h_norm->Fill("Event count", 1);
139 
140  PHHepMCGenEventMap *geneventmap = findNode::getClass<PHHepMCGenEventMap>(topNode, "PHHepMCGenEventMap");
141  if (!geneventmap)
142  {
143  static bool once = true;
144  if (once)
145  {
146  once = false;
147  cout << "PHG4ScoringManager::process_event - - missing node PHHepMCGenEventMap. Skipping HepMC stat." << std::endl;
148  }
149  }
150  else
151  {
152  h_norm->Fill("Collision count", geneventmap->size());
153 
154  TH1D *hVertexZ = dynamic_cast<TH1D *>(hm->getHisto("hVertexZ"));
155  assert(hVertexZ);
156 
157  for (const auto genevntpair : geneventmap->get_map())
158  {
159  const PHHepMCGenEvent *genevnt = genevntpair.second;
160  assert(genevnt);
161 
162  if (genevnt->get_collision_vertex().z() < m_vertexAcceptanceRange.first
163  or genevnt->get_collision_vertex().z() > m_vertexAcceptanceRange.second)
164  {
165  if (Verbosity() >= 2)
166  {
167  cout <<__PRETTY_FUNCTION__<<": get vertex "<<genevnt->get_collision_vertex().z()
168  <<" which is outside range "<<m_vertexAcceptanceRange.first <<" to "<<m_vertexAcceptanceRange.second<<" cm:";
169  genevnt->identify();
170  }
171 
172  return Fun4AllReturnCodes::ABORTEVENT;
173  }
174 
175  hVertexZ->Fill(genevnt->get_collision_vertex().z());
176  }
177 
178  h_norm->Fill("Collision count accepted", geneventmap->size());
179  }
180 
181  TH1D *hNChEta = dynamic_cast<TH1D *>(hm->getHisto("hNChEta"));
182  assert(hNChEta);
183 
184  PHG4InEvent *ineve = findNode::getClass<PHG4InEvent>(topNode, "PHG4INEVENT");
185  if (!ineve)
186  {
187  cout << "PHG4ScoringManager::process_event - Error - "
188  << "unable to find DST node "
189  << "PHG4INEVENT" << endl;
190  }
191  else
192  {
193  const auto primary_range = ineve->GetParticles();
194  for (auto particle_iter = primary_range.first;
195  particle_iter != primary_range.second;
196  ++particle_iter)
197  {
198  const PHG4Particle *p = particle_iter->second;
199  assert(p);
200  TParticlePDG *pdg_p = TDatabasePDG::Instance()->GetParticle(p->get_pid());
201  assert(pdg_p);
202  if (fabs(pdg_p->Charge()) > 0)
203  {
204  TVector3 pvec(p->get_px(), p->get_py(), p->get_pz());
205  if (pvec.Perp2() > 0)
206  {
207  assert(hNChEta);
208  hNChEta->Fill(pvec.PseudoRapidity());
209  }
210  }
211  } // if (_load_all_particle) else
212  }
213 
214  h_norm->Fill("Event count accepted", 1);
215 
216  return Fun4AllReturnCodes::EVENT_OK;
217 }
218 
219 //_________________________________________________________________
220 int PHG4ScoringManager::End(PHCompositeNode *)
221 {
222  if (not m_outputFileName.empty())
223  {
224  PHTFileServer::get().cd(m_outputFileName);
225  cout << "PHG4ScoringManager::End - save results to " << m_outputFileName << endl;
226 
227  makeScoringHistograms();
228 
229  Fun4AllHistoManager *hm = getHistoManager();
230  assert(hm);
231  for (unsigned int i = 0; i < hm->nHistos(); i++)
232  hm->getHisto(i)->Write();
233 
234  } // if (not m_outputFileName.empty())
235 
236  return Fun4AllReturnCodes::EVENT_OK;
237 }
238 
240 void PHG4ScoringManager::makeScoringHistograms()
241 {
242  Fun4AllHistoManager *hm = getHistoManager();
243  assert(hm);
244 
245  G4ScoringManager *scoringManager = G4ScoringManager::GetScoringManager();
246  assert(scoringManager);
247 
248  for (unsigned int imesh = 0; imesh < scoringManager->GetNumberOfMesh(); ++imesh)
249  {
250  G4VScoringMesh *g4mesh = scoringManager->GetMesh(imesh);
251  assert(g4mesh);
252 
253  const string meshName(g4mesh->GetWorldName().data());
254  if (Verbosity())
255  {
256  cout << "PHG4ScoringManager::makeScoringHistograms - processing mesh " << meshName << ": " << endl;
257  g4mesh->List();
258  }
259 
260  // descriptors
261  G4int nMeshSegments[3]; // number of segments of the mesh
262  g4mesh->GetNumberOfSegments(nMeshSegments);
263 
264  G4String divisionAxisNames[3];
265  g4mesh->GetDivisionAxisNames(divisionAxisNames);
266 
267  // process shape
268  const G4ThreeVector meshSize = g4mesh->GetSize();
269  const G4ThreeVector meshTranslate = g4mesh->GetTranslation();
270 #if G4VERSION_NUMBER >= 1060
271  const G4VScoringMesh::MeshShape meshShape = g4mesh->GetShape();
272 #else
273  const MeshShape meshShape = g4mesh->GetShape();
274 #endif
275  //PHENIX units
276  vector<double> meshBoundMin = {std::numeric_limits<double>::signaling_NaN(), std::numeric_limits<double>::signaling_NaN(), std::numeric_limits<double>::signaling_NaN()};
277  //PHENIX units
278  vector<double> meshBoundMax = {std::numeric_limits<double>::signaling_NaN(), std::numeric_limits<double>::signaling_NaN(), std::numeric_limits<double>::signaling_NaN()};
279 #if G4VERSION_NUMBER >= 1060
280  if (meshShape == G4VScoringMesh::MeshShape::box)
281 #else
282  if (meshShape == boxMesh)
283 #endif
284  {
285  meshBoundMin[0] = (-meshSize[0] + meshTranslate[0]) / cm;
286  meshBoundMax[0] = (meshSize[0] + meshTranslate[0]) / cm;
287  meshBoundMin[1] = (-meshSize[1] + meshTranslate[1]) / cm;
288  meshBoundMax[1] = (meshSize[1] + meshTranslate[1]) / cm;
289  meshBoundMin[2] = (-meshSize[2] + meshTranslate[2]) / cm;
290  meshBoundMax[2] = (meshSize[2] + meshTranslate[2]) / cm;
291 
292  divisionAxisNames[0] += " [cm]";
293  divisionAxisNames[1] += " [cm]";
294  divisionAxisNames[2] += " [cm]";
295  }
296 #if G4VERSION_NUMBER >= 1060
297  else if (meshShape == G4VScoringMesh::MeshShape::cylinder)
298 #else
299  else if (meshShape == cylinderMesh)
300 #endif
301  {
302  // fDivisionAxisNames[0] = "Z";
303  // fDivisionAxisNames[1] = "PHI";
304  // fDivisionAxisNames[2] = "R";
305  // G4VSolid * tubsSolid = new G4Tubs(tubsName+"0", // name
306  // 0., // R min
307  // fSize[0], // R max
308  // fSize[1], // Dz
309  // 0., // starting phi
310  // twopi*rad); // segment phi
311  meshBoundMin[0] = (-meshSize[1] + meshTranslate[0]) / cm;
312  meshBoundMax[0] = (meshSize[1] + meshTranslate[0]) / cm;
313  meshBoundMin[1] = 0;
314  meshBoundMax[1] = 2 * M_PI;
315  meshBoundMin[2] = 0;
316  meshBoundMax[2] = meshSize[0] / cm;
317 
318  divisionAxisNames[0] += " [cm]";
319  divisionAxisNames[1] += " [rad]";
320  divisionAxisNames[2] += " [cm]";
321  }
322  else
323  {
324  cout << "PHG4ScoringManager::makeScoringHistograms - Error - unsupported mesh shape " << (int) meshShape << ". Skipping this mesh!" << endl;
325  g4mesh->List();
326  continue;
327  }
328 
329 #if G4VERSION_NUMBER >= 1060
330  G4VScoringMesh::MeshScoreMap fSMap = g4mesh->GetScoreMap();
331  G4VScoringMesh::MeshScoreMap::const_iterator msMapItr = fSMap.begin();
332 #else
333  MeshScoreMap fSMap = g4mesh->GetScoreMap();
334  MeshScoreMap::const_iterator msMapItr = fSMap.begin();
335 #endif
336  for (; msMapItr != fSMap.end(); ++msMapItr)
337  {
338  G4String psname = msMapItr->first;
339 #if G4VERSION_NUMBER >= 1040
340  std::map<G4int, G4StatDouble *> &score = *(msMapItr->second->GetMap());
341 #else
342  std::map<G4int, G4double *> &score = *(msMapItr->second->GetMap());
343 #endif
344  G4double unitValue = g4mesh->GetPSUnitValue(psname);
345  G4String unit = g4mesh->GetPSUnit(psname);
346 
347  const string hname = boost::str(boost::format("hScore_%1%_%2%") % meshName.data() % psname.data());
348  const string htitle = boost::str(boost::format("Mesh %1%, Primitive scorer %2%: score [%3%]") % meshName.c_str() % psname.data() % unit.data());
349 
350  if (Verbosity())
351  {
352  cout << "PHG4ScoringManager::makeScoringHistograms - processing mesh " << meshName
353  << " scorer " << psname
354  << " with axis: "
355  << "# i" << divisionAxisNames[0]
356  << ", i" << divisionAxisNames[1]
357  << ", i" << divisionAxisNames[2]
358  << ", value "
359  << "[unit: " << unit << "]."
360  << " Saving to histogram " << hname << " : " << htitle
361  << endl;
362  }
363  //book histogram
364  TH3 *h = new TH3D(hname.c_str(), //
365  htitle.c_str(), //
366  nMeshSegments[0],
367  meshBoundMin[0], meshBoundMax[0],
368  nMeshSegments[1],
369  meshBoundMin[1], meshBoundMax[1],
370  nMeshSegments[2],
371  meshBoundMin[2], meshBoundMax[2]);
372  hm->registerHisto(h);
373 
374  h->GetXaxis()->SetTitle(divisionAxisNames[0].data());
375  h->GetYaxis()->SetTitle(divisionAxisNames[1].data());
376  h->GetZaxis()->SetTitle(divisionAxisNames[2].data());
377 
378  // write quantity
379  for (int x = 0; x < nMeshSegments[0]; x++)
380  {
381  for (int y = 0; y < nMeshSegments[1]; y++)
382  {
383  for (int z = 0; z < nMeshSegments[2]; z++)
384  {
385  const int idx = x * nMeshSegments[1] * nMeshSegments[2] + y * nMeshSegments[2] + z;
386 
387 #if G4VERSION_NUMBER >= 1040
388  std::map<G4int, G4StatDouble *>::iterator value = score.find(idx);
389 #else
390  std::map<G4int, G4double *>::iterator value = score.find(idx);
391 #endif
392  if (value != score.end())
393  {
394 #if G4VERSION_NUMBER >= 1040
395  h->SetBinContent(x + 1, y + 1, z + 1, (value->second->mean()) / unitValue);
396 #else
397  h->SetBinContent(x + 1, y + 1, z + 1, *(value->second) / unitValue);
398 #endif
399  }
400 
401  } // for (int z = 0; z < fNMeshSegments[2]; z++)
402  }
403  } // for (int x = 0; x < nMeshSegments[0]; x++)
404 
405  } // for (; msMapItr != fSMap.end(); msMapItr++)
406 
407  } // for (int imesh = 0; imesh < scoringManager->GetNumberOfMesh(); ++imesh)
408 }
409 
410 Fun4AllHistoManager *
411 PHG4ScoringManager::getHistoManager()
412 {
413  static string histname("PHG4ScoringManager_HISTOS");
414  Fun4AllServer *se = Fun4AllServer::instance();
415  Fun4AllHistoManager *hm = se->getHistoManager(histname);
416  if (!hm)
417  {
418  if (Verbosity())
419  cout
420  << "PHG4ScoringManager::get_HistoManager - Making Fun4AllHistoManager " << histname
421  << endl;
422  hm = new Fun4AllHistoManager(histname);
423  se->registerHistoManager(hm);
424  }
425  assert(hm);
426  return hm;
427 }