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26 /// \file eventgenerator/HepMC/MCTruth/src/MCT 26 /// \file eventgenerator/HepMC/MCTruth/src/MCTruthManager.cc
27 /// \brief Implementation of the MCTruthManage 27 /// \brief Implementation of the MCTruthManager class
28 // 28 //
29 // 29 //
>> 30 // $Id: MCTruthManager.cc 99841 2016-10-07 10:09:34Z gcosmo $
30 // 31 //
31 // 32 //
32 // ------------------------------------------- 33 // --------------------------------------------------------------
33 // GEANT 4 - MCTruthManager class 34 // GEANT 4 - MCTruthManager class
34 // ------------------------------------------- 35 // --------------------------------------------------------------
35 // 36 //
36 // Author: Witold POKORSKI (Witold.Pokorski@ce 37 // Author: Witold POKORSKI (Witold.Pokorski@cern.ch)
37 // 38 //
38 // ------------------------------------------- 39 // --------------------------------------------------------------
39 // 40 //
40 //....oooOO0OOooo........oooOO0OOooo........oo << 41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
41 42
42 #include "MCTruthManager.hh" 43 #include "MCTruthManager.hh"
43 44
44 //....oooOO0OOooo........oooOO0OOooo........oo << 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
45 46
46 static MCTruthManager* instance = 0; 47 static MCTruthManager* instance = 0;
47 48
48 //....oooOO0OOooo........oooOO0OOooo........oo << 49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
49 50
50 MCTruthManager::MCTruthManager() : fEvent(0), << 51 MCTruthManager::MCTruthManager() : event(0), fConfig(0)
>> 52 {}
51 53
52 //....oooOO0OOooo........oooOO0OOooo........oo << 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
53 55
54 MCTruthManager::~MCTruthManager() {} << 56 MCTruthManager::~MCTruthManager()
>> 57 {}
55 58
56 //....oooOO0OOooo........oooOO0OOooo........oo << 59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
57 60
58 MCTruthManager* MCTruthManager::GetInstance() 61 MCTruthManager* MCTruthManager::GetInstance()
59 { 62 {
60 if (instance == 0) { << 63 if( instance == 0 )
>> 64 {
61 instance = new MCTruthManager(); 65 instance = new MCTruthManager();
62 } 66 }
63 return instance; 67 return instance;
64 } 68 }
65 69
66 //....oooOO0OOooo........oooOO0OOooo........oo << 70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
67 71
68 void MCTruthManager::NewEvent() 72 void MCTruthManager::NewEvent()
69 { 73 {
70 // first delete the old event 74 // first delete the old event
71 delete fEvent; 75 delete fEvent;
72 // and now instaciate a new one 76 // and now instaciate a new one
73 fEvent = new HepMC::GenEvent(); 77 fEvent = new HepMC::GenEvent();
74 } 78 }
75 79
76 //....oooOO0OOooo........oooOO0OOooo........oo << 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
77 81
78 void MCTruthManager::AddParticle(G4LorentzVect << 82 void MCTruthManager::AddParticle(G4LorentzVector& momentum,
79 G4LorentzVect << 83 G4LorentzVector& prodpos,
80 G4int motherI << 84 G4LorentzVector& endpos,
>> 85 G4int pdg_id, G4int partID, G4int motherID,
>> 86 G4bool directParent)
81 { 87 {
82 // we create a new particle with barcode = p 88 // we create a new particle with barcode = partID
83 HepMC::GenParticle* particle = new HepMC::Ge 89 HepMC::GenParticle* particle = new HepMC::GenParticle(momentum, pdg_id);
84 particle->suggest_barcode(partID); 90 particle->suggest_barcode(partID);
85 // we initialize the 'segmentations' map 91 // we initialize the 'segmentations' map
86 // for the moment particle is not 'segmented << 92 // for the moment particle is not 'segmented'
87 fSegmentations[partID] = 1; 93 fSegmentations[partID] = 1;
88 94
89 // we create the GenVertex corresponding to 95 // we create the GenVertex corresponding to the end point of the track
90 HepMC::GenVertex* endvertex = new HepMC::Gen 96 HepMC::GenVertex* endvertex = new HepMC::GenVertex(endpos);
91 << 97
92 // barcode of the endvertex = - barcode of t 98 // barcode of the endvertex = - barcode of the track
93 endvertex->suggest_barcode(-partID); 99 endvertex->suggest_barcode(-partID);
94 endvertex->add_particle_in(particle); 100 endvertex->add_particle_in(particle);
95 fEvent->add_vertex(endvertex); 101 fEvent->add_vertex(endvertex);
96 << 102
97 if (motherID) // not a primary << 103 if(motherID) // not a primary
98 { 104 {
99 // here we could try to improve speed by s << 105 // here we could try to improve speed by searching only through particles which
100 // belong to the given primary tree 106 // belong to the given primary tree
101 HepMC::GenParticle* mother = fEvent->barco 107 HepMC::GenParticle* mother = fEvent->barcode_to_particle(motherID);
102 // 108 //
103 if (mother) { << 109 if(mother)
>> 110 {
104 // we first check whether the mother's e 111 // we first check whether the mother's end vertex corresponds to the particle's
105 // production vertex 112 // production vertex
106 HepMC::GenVertex* motherendvtx = mother- 113 HepMC::GenVertex* motherendvtx = mother->end_vertex();
107 HepMC::FourVector mp0 = motherendvtx->po 114 HepMC::FourVector mp0 = motherendvtx->position();
108 G4LorentzVector motherendpos(mp0.x(), mp 115 G4LorentzVector motherendpos(mp0.x(), mp0.y(), mp0.z(), mp0.t());
109 << 116
110 if (motherendpos.x() == prodpos.x() && m << 117 if( motherendpos.x() == prodpos.x() &&
111 && motherendpos.z() == prodpos.z()) << 118 motherendpos.y() == prodpos.y() &&
>> 119 motherendpos.z() == prodpos.z() ) // if yes, we attach the particle
112 { 120 {
113 motherendvtx->add_particle_out(particl 121 motherendvtx->add_particle_out(particle);
114 } 122 }
115 else // if not, we check whether the mo << 123 else // if not, we check whether the mother is biological or adopted
116 { << 124 {
117 if (!directParent) // adopted << 125 if(!directParent) // adopted
118 { << 126 {
119 G4bool found = false; 127 G4bool found = false;
120 128
121 // first check if any of the dummy p 129 // first check if any of the dummy particles
122 // has the end vertex at the right p 130 // has the end vertex at the right place
123 // 131 //
124 for (HepMC::GenVertex::particles_out << 132 for(HepMC::GenVertex::particles_out_const_iterator
125 motherendvtx->particles_out_c << 133 it=motherendvtx->particles_out_const_begin();
126 it != motherendvtx->particles_o << 134 it!=motherendvtx->particles_out_const_end();it++)
127 { 135 {
128 if ((*it)->pdg_id() == -999999) { << 136 if((*it)->pdg_id()==-999999)
>> 137 {
129 HepMC::FourVector dp0 = (*it)->e 138 HepMC::FourVector dp0 = (*it)->end_vertex()->position();
130 G4LorentzVector dummypos(dp0.x() << 139 G4LorentzVector dummypos(dp0.x(), dp0.y(), dp0.z(), dp0.t());;
131 ; << 140
132 << 141 if( dummypos.x() == prodpos.x() &&
133 if (dummypos.x() == prodpos.x() << 142 dummypos.y() == prodpos.y() &&
134 && dummypos.z() == prodpos.z << 143 dummypos.z() == prodpos.z() )
135 { 144 {
136 (*it)->end_vertex()->add_parti 145 (*it)->end_vertex()->add_particle_out(particle);
137 found = true; 146 found = true;
138 break; 147 break;
139 } 148 }
140 } 149 }
141 } 150 }
142 151
143 // and if not, create a dummy partic 152 // and if not, create a dummy particle connecting
144 // to the end vertex of the mother 153 // to the end vertex of the mother
145 // 154 //
146 if (!found) { << 155 if(!found)
>> 156 {
147 HepMC::GenVertex* childvtx = new H 157 HepMC::GenVertex* childvtx = new HepMC::GenVertex(prodpos);
148 childvtx->add_particle_out(particl 158 childvtx->add_particle_out(particle);
149 159
150 // the dummy vertex gets the barco 160 // the dummy vertex gets the barcode -500000
151 // minus the daughter particle bar 161 // minus the daughter particle barcode
152 // 162 //
153 childvtx->suggest_barcode(-500000 << 163 childvtx->suggest_barcode(-500000-partID);
154 fEvent->add_vertex(childvtx); 164 fEvent->add_vertex(childvtx);
155 << 165
156 HepMC::GenParticle* dummypart = ne << 166 HepMC::GenParticle* dummypart =
>> 167 new HepMC::GenParticle(G4LorentzVector(),-999999);
157 168
158 // the dummy particle gets the bar 169 // the dummy particle gets the barcode 500000
159 // plus the daughter particle barc 170 // plus the daughter particle barcode
160 // 171 //
161 dummypart->suggest_barcode(500000 << 172 dummypart->suggest_barcode(500000+partID);
162 childvtx->add_particle_in(dummypar 173 childvtx->add_particle_in(dummypart);
163 motherendvtx->add_particle_out(dum 174 motherendvtx->add_particle_out(dummypart);
164 } 175 }
165 } 176 }
166 else // biological << 177 else // biological
167 { 178 {
168 // in case mother was already 'split 179 // in case mother was already 'split' we need to look for
169 // the right 'segment' to add the ne 180 // the right 'segment' to add the new daugther.
170 // We use Time coordinate to locate 181 // We use Time coordinate to locate the place for the new vertex
171 182
172 G4int number_of_segments = fSegmenta 183 G4int number_of_segments = fSegmentations[motherID];
173 G4int segment = 0; 184 G4int segment = 0;
174 185
175 // we loop through the segments 186 // we loop through the segments
176 // << 187 //
177 while (!((mother->end_vertex()->posi << 188 while ( !((mother->end_vertex()->position().t()>prodpos.t()) &&
178 && (mother->production_vert << 189 (mother->production_vertex()->position().t()<prodpos.t())) )
179 { 190 {
180 segment++; 191 segment++;
181 if (segment == number_of_segments) << 192 if (segment == number_of_segments)
182 G4cerr << "Problem!!!! Time coor 193 G4cerr << "Problem!!!! Time coordinates incompatible!" << G4endl;
183 << 194
184 mother = fEvent->barcode_to_partic << 195 mother = fEvent->barcode_to_particle(segment*10000000 + motherID);
185 } 196 }
186 << 197
187 // now, we 'split' the appropriate ' 198 // now, we 'split' the appropriate 'segment' of the mother particle
188 // into two particles and create a n 199 // into two particles and create a new vertex
189 // 200 //
190 HepMC::GenVertex* childvtx = new Hep 201 HepMC::GenVertex* childvtx = new HepMC::GenVertex(prodpos);
191 childvtx->add_particle_out(particle) 202 childvtx->add_particle_out(particle);
192 fEvent->add_vertex(childvtx); 203 fEvent->add_vertex(childvtx);
193 204
194 // we first detach the mother from i 205 // we first detach the mother from its original vertex
195 // 206 //
196 HepMC::GenVertex* orig_mother_end_vt 207 HepMC::GenVertex* orig_mother_end_vtx = mother->end_vertex();
197 orig_mother_end_vtx->remove_particle 208 orig_mother_end_vtx->remove_particle(mother);
198 209
199 // and attach it to the new vertex 210 // and attach it to the new vertex
200 // 211 //
201 childvtx->add_particle_in(mother); 212 childvtx->add_particle_in(mother);
202 213
203 // now we create a new particle repr 214 // now we create a new particle representing the mother after
204 // interaction the barcode of the ne 215 // interaction the barcode of the new particle is 10000000 + the
205 // original barcode 216 // original barcode
206 // 217 //
207 HepMC::GenParticle* mothertwo = new 218 HepMC::GenParticle* mothertwo = new HepMC::GenParticle(*mother);
208 mothertwo->suggest_barcode(fSegmenta << 219 mothertwo->suggest_barcode(fSegmentations[motherID]*10000000
>> 220 + mother->barcode());
209 221
210 // we also reset the barcodes of the 222 // we also reset the barcodes of the vertices
211 // 223 //
212 orig_mother_end_vtx->suggest_barcode << 224 orig_mother_end_vtx->suggest_barcode(-fSegmentations[motherID]
213 << 225 *10000000 - mother->barcode());
214 childvtx->suggest_barcode(-mother->b 226 childvtx->suggest_barcode(-mother->barcode());
215 227
216 // we attach it to the new vertex wh 228 // we attach it to the new vertex where interaction took place
217 // 229 //
218 childvtx->add_particle_out(mothertwo 230 childvtx->add_particle_out(mothertwo);
219 231
220 // and we attach it to the original 232 // and we attach it to the original endvertex
221 // 233 //
222 orig_mother_end_vtx->add_particle_in 234 orig_mother_end_vtx->add_particle_in(mothertwo);
223 235
224 // and finally ... the increase the 236 // and finally ... the increase the 'segmentation counter'
225 // 237 //
226 fSegmentations[motherID] = fSegmenta << 238 fSegmentations[motherID] = fSegmentations[motherID]+1;
227 } 239 }
228 } 240 }
229 } 241 }
230 else << 242 else
231 // mother GenParticle is not there for som << 243 // mother GenParticle is not there for some reason...
232 // if this happens, we need to revise the << 244 // if this happens, we need to revise the philosophy...
233 // a solution would be to create HepMC par << 245 // a solution would be to create HepMC particles
234 // at the begining of each track << 246 // at the begining of each track
235 { 247 {
236 G4cerr << "barcode " << motherID << " mo << 248 G4cerr << "barcode " << motherID << " mother not there! "<< G4endl;
237 } 249 }
238 } 250 }
239 else // primary << 251 else // primary
240 { 252 {
241 HepMC::GenVertex* primaryvtx = new HepMC:: 253 HepMC::GenVertex* primaryvtx = new HepMC::GenVertex(prodpos);
242 primaryvtx->add_particle_out(particle); 254 primaryvtx->add_particle_out(particle);
243 fEvent->add_vertex(primaryvtx); 255 fEvent->add_vertex(primaryvtx);
244 256
245 // add id to the list of primaries 257 // add id to the list of primaries
246 // 258 //
247 fPrimarybarcodes.push_back(partID); 259 fPrimarybarcodes.push_back(partID);
248 } << 260 }
249 } 261 }
250 262
251 //....oooOO0OOooo........oooOO0OOooo........oo << 263 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
252 264
253 void MCTruthManager::PrintEvent() 265 void MCTruthManager::PrintEvent()
254 { 266 {
255 fEvent->print(); 267 fEvent->print();
256 268
257 // looping over primaries and print the deca 269 // looping over primaries and print the decay tree for each of them
258 // 270 //
259 for (std::vector<int>::const_iterator primar << 271 for(std::vector<int>::const_iterator primarybar=fPrimarybarcodes.begin();
260 primarybar != fPrimarybarcodes.end(); p << 272 primarybar!=fPrimarybarcodes.end();primarybar++)
261 { 273 {
262 PrintTree(fEvent->barcode_to_particle(*pri 274 PrintTree(fEvent->barcode_to_particle(*primarybar), " | ");
263 } 275 }
264 } 276 }
265 277
266 //....oooOO0OOooo........oooOO0OOooo........oo << 278 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
267 279
268 void MCTruthManager::PrintTree(HepMC::GenParti 280 void MCTruthManager::PrintTree(HepMC::GenParticle* particle, G4String offset)
269 { 281 {
270 G4cout << offset << "--- barcode: " << part << 282 G4cout << offset << "--- barcode: " << particle->barcode() << " pdg: "
271 << " energy: " << particle->momentum( << 283 << particle->pdg_id() << " energy: " << particle->momentum().e()
272 << " production vertex: " << particle << 284 << " production vertex: "
273 << particle->production_vertex()->pos << 285 << particle->production_vertex()->position().x() << ", "
274 << particle->production_vertex()->pos << 286 << particle->production_vertex()->position().y() << ", "
275 << particle->production_vertex()->pos << 287 << particle->production_vertex()->position().z() << ", "
276 << 288 << particle->production_vertex()->position().t()
277 for (HepMC::GenVertex::particles_out_const_i << 289 << G4endl;
278 particle->end_vertex()->particles_out << 290
279 it != particle->end_vertex()->particles << 291 for(HepMC::GenVertex::particles_out_const_iterator
>> 292 it=particle->end_vertex()->particles_out_const_begin();
>> 293 it!=particle->end_vertex()->particles_out_const_end();
>> 294 it++)
280 { 295 {
281 G4String deltaoffset = ""; 296 G4String deltaoffset = "";
282 297
283 G4int curr = std::fmod(double((*it)->barco << 298 G4int curr = std::fmod(double((*it)->barcode()),10000000.);
284 G4int part = std::fmod(double(particle->ba << 299 G4int part = std::fmod(double(particle->barcode()),10000000.);
285 if (curr != part) { << 300 if( curr != part )
286 deltaoffset = " | "; << 301 {
287 } << 302 deltaoffset = " | ";
>> 303 }
288 304
289 PrintTree((*it), offset + deltaoffset); 305 PrintTree((*it), offset + deltaoffset);
290 } << 306 }
291 } 307 }
292 308
293 //....oooOO0OOooo........oooOO0OOooo........oo << 309 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
294 310