ATLAS Offline Software
SiSpacePointsSeedMaker_HeavyIon.cxx
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1 /*
2  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
3 */
4 
6 // Implementation file for class SiSpacePointsSeedMaker_HeavyIon
8 // (c) ATLAS Detector software
10 // AlgTool used for TRT_DriftCircleOnTrack object production
12 // Version 1.0 21/04/2004 I.Gavrilenko
14 
15 #include "SiSpacePointsSeedTool_xk/SiSpacePointsSeedMaker_HeavyIon.h"
16 
17 #include <cmath>
18 
19 #include <iomanip>
20 #include <ostream>
21 
23 // Constructor
25 
26 InDet::SiSpacePointsSeedMaker_HeavyIon::SiSpacePointsSeedMaker_HeavyIon
27 (const std::string& t, const std::string& n, const IInterface* p)
28  : base_class(t, n, p)
29 {
30 }
31 
33 // Initialisation
35 
36 StatusCode InDet::SiSpacePointsSeedMaker_HeavyIon::initialize()
37 {
38  StatusCode sc = AlgTool::initialize();
39 
40  ATH_CHECK(m_spacepointsPixel.initialize(m_pixel));
41  ATH_CHECK(m_spacepointsSCT.initialize(m_sct));
42  ATH_CHECK(m_spacepointsOverlap.initialize(m_useOverlap));
43 
44  // Get beam geometry
45  //
46  ATH_CHECK(m_beamSpotKey.initialize());
47 
48  ATH_CHECK( m_fieldCondObjInputKey.initialize());
49 
50  // Build framework
51  //
52  buildFrameWork();
53 
54  // Get output print level
55  //
56  m_outputlevel = msg().level()-MSG::DEBUG;
57  if (m_outputlevel<=0) {
58  EventData data;
59  initializeEventData(data);
60  data.nprint=0;
61  dump(data, msg(MSG::DEBUG));
62  }
63 
64  m_initialized = true;
65 
66  return sc;
67 }
68 
70 // Finalize
72 
73 StatusCode InDet::SiSpacePointsSeedMaker_HeavyIon::finalize()
74 {
75  return AlgTool::finalize();
76 }
77 
79 // Initialize tool for new event
81 
82 void InDet::SiSpacePointsSeedMaker_HeavyIon::newEvent(const EventContext& ctx, EventData& data, int) const
83 {
84  if (not data.initialized) initializeEventData(data);
85 
86  data.trigger = false;
87  if (!m_pixel && !m_sct) return;
88  erase(data);
89  buildBeamFrameWork(ctx, data);
90 
91  double f[3], gP[3] ={10.,10.,0.};
92 
93  MagField::AtlasFieldCache fieldCache;
94 
95  // Get field cache object
96  SG::ReadCondHandle<AtlasFieldCacheCondObj> readHandle{m_fieldCondObjInputKey, ctx};
97  const AtlasFieldCacheCondObj* fieldCondObj{*readHandle};
98  if (fieldCondObj == nullptr) {
99  ATH_MSG_ERROR("SiSpacePointsSeedMaker_HeavyIon: Failed to retrieve AtlasFieldCacheCondObj with key " << m_fieldCondObjInputKey.key());
100  return;
101  }
102  fieldCondObj->getInitializedCache (fieldCache);
103 
104  if (fieldCache.solenoidOn()) {
105  fieldCache.getFieldZR(gP,f);
106 
107  data.K = 2./(300.*f[2]);
108  } else {
109  data.K = 2./(300.* 5. );
110  }
111 
112  data.i_spforseed = data.l_spforseed.begin();
113 
114  float irstep = 1./m_r_rstep;
115  int irmax = m_r_size-1 ;
116 
117  // Get pixels space points containers from store gate
118  //
119  if (m_pixel) {
120 
121  SG::ReadHandle<SpacePointContainer> spacepointsPixel{m_spacepointsPixel, ctx};
122  if (spacepointsPixel.isValid()) {
123 
124  for (const SpacePointCollection* spc: *spacepointsPixel) {
125  for (const Trk::SpacePoint* sp: *spc) {
126  float r = sp->r();
127  if (r < 43. || r>=m_r_rmax) continue;
128  InDet::SiSpacePointForSeed* sps = newSpacePoint(data, sp);
129  int ir = static_cast<int>(sps->radius()*irstep);
130  if (ir>irmax) ir = irmax;
131  data.r_Sorted[ir].push_back(sps);
132  ++data.r_map[ir];
133  if (data.r_map[ir]==1) data.r_index[data.nr++] = ir;
134  ++data.ns;
135  }
136  }
137  }
138  }
139 
140  // Get sct space points containers from store gate
141  //
142  if (m_sct) {
143 
144  SG::ReadHandle<SpacePointContainer> spacepointsSCT{m_spacepointsSCT, ctx};
145  if (spacepointsSCT.isValid()) {
146 
147  for (const SpacePointCollection* spc: *spacepointsSCT) {
148  for (const Trk::SpacePoint* sp: *spc) {
149  float r = sp->r();
150  if (r<0. || r>=m_r_rmax) continue;
151  InDet::SiSpacePointForSeed* sps = newSpacePoint(data, sp);
152  int ir = static_cast<int>(sps->radius()*irstep);
153  if (ir>irmax) ir = irmax;
154  data.r_Sorted[ir].push_back(sps);
155  ++data.r_map[ir];
156  if (data.r_map[ir]==1) data.r_index[data.nr++] = ir;
157  ++data.ns;
158  }
159  }
160  }
161  }
162  fillLists(data);
163 }
164 
166 // Initialize tool for new region
168 
169 void InDet::SiSpacePointsSeedMaker_HeavyIon::newRegion
170 (const EventContext& ctx, EventData& data,
171  const std::vector<IdentifierHash>& vPixel, const std::vector<IdentifierHash>& vSCT) const
172 {
173  if (not data.initialized) initializeEventData(data);
174 
175  data.trigger = false;
176  if (!m_pixel && !m_sct) return;
177  erase(data);
178 
179  buildBeamFrameWork(ctx, data);
180 
181  double f[3], gP[3] ={10.,10.,0.};
182 
183  MagField::AtlasFieldCache fieldCache;
184 
185  // Get field cache object
186  SG::ReadCondHandle<AtlasFieldCacheCondObj> readHandle{m_fieldCondObjInputKey, ctx};
187  const AtlasFieldCacheCondObj* fieldCondObj{*readHandle};
188  if (fieldCondObj == nullptr) {
189  ATH_MSG_ERROR("SiSpacePointsSeedMaker_HeavyIon: Failed to retrieve AtlasFieldCacheCondObj with key " << m_fieldCondObjInputKey.key());
190  return;
191  }
192  fieldCondObj->getInitializedCache (fieldCache);
193 
194  if (fieldCache.solenoidOn()) {
195  fieldCache.getFieldZR(gP, f);
196 
197  data.K = 2./(300.*f[2]);
198  } else {
199  data.K = 2./(300.* 5.);
200  }
201 
202  data.i_spforseed = data.l_spforseed.begin();
203 
204  float irstep = 1./m_r_rstep;
205  int irmax = m_r_size-1;
206 
207  // Get pixels space points containers from store gate
208  //
209  if (m_pixel && !vPixel.empty()) {
210 
211  SG::ReadHandle<SpacePointContainer> spacepointsPixel{m_spacepointsPixel, ctx};
212  if (spacepointsPixel.isValid()) {
213 
214  // Loop through all trigger collections
215  //
216  for (const IdentifierHash& l: vPixel) {
217  const auto *w = spacepointsPixel->indexFindPtr(l);
218  if (w==nullptr) continue;
219  for (const Trk::SpacePoint* sp: *w) {
220  float r = sp->r();
221  if (r<0. || r>=m_r_rmax) continue;
222  InDet::SiSpacePointForSeed* sps = newSpacePoint(data, sp);
223  int ir = static_cast<int>(sps->radius()*irstep);
224  if (ir>irmax) ir = irmax;
225  data.r_Sorted[ir].push_back(sps);
226  ++data.r_map[ir];
227  if (data.r_map[ir]==1) data.r_index[data.nr++] = ir;
228  ++data.ns;
229  }
230  }
231  }
232  }
233 
234  // Get sct space points containers from store gate
235  //
236  if (m_sct && !vSCT.empty()) {
237 
238  SG::ReadHandle<SpacePointContainer> spacepointsSCT{m_spacepointsSCT, ctx};
239  if (spacepointsSCT.isValid()) {
240 
241  // Loop through all trigger collections
242  //
243  for (const IdentifierHash& l: vSCT) {
244  const auto *w = spacepointsSCT->indexFindPtr(l);
245  if (w==nullptr) continue;
246  for (const Trk::SpacePoint* sp: *w) {
247  float r = sp->r();
248  if (r<0. || r>=m_r_rmax) continue;
249  InDet::SiSpacePointForSeed* sps = newSpacePoint(data, sp);
250  int ir = static_cast<int>(sps->radius()*irstep);
251  if (ir>irmax) ir = irmax;
252  data.r_Sorted[ir].push_back(sps);
253  ++data.r_map[ir];
254  if (data.r_map[ir]==1) data.r_index[data.nr++] = ir;
255  ++data.ns;
256  }
257  }
258  }
259  }
260  fillLists(data);
261 }
262 
264 // Initialize tool for new region
266 
267 void InDet::SiSpacePointsSeedMaker_HeavyIon::newRegion
268 (const EventContext& ctx, EventData& data,
269  const std::vector<IdentifierHash>& vPixel, const std::vector<IdentifierHash>& vSCT,
270  const IRoiDescriptor&) const
271 {
272  newRegion(ctx, data, vPixel, vSCT);
273 }
274 
276 // Methods to initilize different strategies of seeds production
277 // with two space points with or without vertex constraint
279 
280 void InDet::SiSpacePointsSeedMaker_HeavyIon::find2Sp(EventData& data, const std::list<Trk::Vertex>& lv) const
281 {
282  if (not data.initialized) initializeEventData(data);
283 
284  data.izvertex = not lv.empty();
285 
286  int mode = 0;
287  if (lv.begin()!=lv.end()) mode = 1;
288  bool newv = newVertices(data, lv);
289 
290  if (newv || !data.state || data.nspoint!=2 || data.mode!=mode || data.nlist) {
291 
292  data.i_seede = data.l_seeds.begin();
293  data.state = 1 ;
294  data.nspoint = 2 ;
295  data.nlist = 0 ;
296  data.mode = mode;
297  data.endlist = true;
298  data.fvNmin = 0 ;
299  data.fNmin = 0 ;
300  data.zMin = 0 ;
301  production2Sp(data);
302  }
303  data.i_seed = data.l_seeds.begin();
304 
305  if (m_outputlevel<=0) {
306  data.nprint=1;
307  dump(data, msg(MSG::DEBUG));
308  }
309 }
310 
312 // Methods to initilize different strategies of seeds production
313 // with three space points with or without vertex constraint
315 
316 void InDet::SiSpacePointsSeedMaker_HeavyIon::find3Sp(const EventContext&, EventData& data, const std::list<Trk::Vertex>& lv) const
317 {
318  if (not data.initialized) initializeEventData(data);
319 
320  data.izvertex = not lv.empty();
321 
322  int mode = 2;
323  if (lv.begin()!=lv.end()) mode = 3;
324  bool newv = newVertices(data, lv);
325 
326  if (newv || !data.state || data.nspoint!=3 || data.mode!=mode || data.nlist) {
327 
328  data.i_seede = data.l_seeds.begin();
329  data.state = 1 ;
330  data.nspoint = 3 ;
331  data.nlist = 0 ;
332  data.mode = mode ;
333  data.endlist = true ;
334  data.fvNmin = 0 ;
335  data.fNmin = 0 ;
336  data.zMin = 0 ;
337  production3Sp(data);
338  }
339  data.i_seed = data.l_seeds.begin();
340 
341  if (m_outputlevel<=0) {
342  data.nprint=1;
343  dump(data, msg(MSG::DEBUG));
344  }
345 }
346 
347 void InDet::SiSpacePointsSeedMaker_HeavyIon::find3Sp(const EventContext& ctx, EventData& data, const std::list<Trk::Vertex>& lv, const double*) const
348 {
349  find3Sp(ctx, data, lv);
350 }
351 
353 // Methods to initilize different strategies of seeds production
354 // with variable number space points with or without vertex constraint
355 // Variable means (2,3,4,....) any number space points
357 
358 void InDet::SiSpacePointsSeedMaker_HeavyIon::findVSp(const EventContext&, EventData& data, const std::list<Trk::Vertex>& lv) const
359 {
360  if (not data.initialized) initializeEventData(data);
361 
362  int mode = 5;
363  if (lv.begin()!=lv.end()) mode = 6;
364  bool newv = newVertices(data, lv);
365 
366  if (newv || !data.state || data.nspoint!=4 || data.mode!=mode || data.nlist) {
367  data.i_seede = data.l_seeds.begin();
368  data.state = 1 ;
369  data.nspoint = 4 ;
370  data.nlist = 0 ;
371  data.mode = mode ;
372  data.endlist = true ;
373  data.fvNmin = 0 ;
374  data.fNmin = 0 ;
375  data.zMin = 0 ;
376  production3Sp(data);
377  }
378  data.i_seed = data.l_seeds.begin();
379 
380  if (m_outputlevel<=0) {
381  data.nprint=1;
382  dump(data, msg(MSG::DEBUG));
383  }
384 }
385 
387 // Dumps relevant information into the MsgStream
389 
390 MsgStream& InDet::SiSpacePointsSeedMaker_HeavyIon::dump(EventData& data, MsgStream& out) const
391 {
392  if (not data.initialized) initializeEventData(data);
393 
394  if (data.nprint) return dumpEvent(data, out);
395  return dumpConditions(data, out);
396 }
397 
399 // Dumps conditions information into the MsgStream
401 
402 MsgStream& InDet::SiSpacePointsSeedMaker_HeavyIon::dumpConditions(EventData& data, MsgStream& out) const
403 {
404  int n = 42-m_spacepointsPixel.key().size();
405  std::string s2; for (int i=0; i<n; ++i) s2.append(" "); s2.append("|");
406  n = 42-m_spacepointsSCT.key().size();
407  std::string s3; for (int i=0; i<n; ++i) s3.append(" "); s3.append("|");
408  n = 42-m_spacepointsOverlap.key().size();
409  std::string s4; for (int i=0; i<n; ++i) s4.append(" "); s4.append("|");
410  n = 42-m_beamSpotKey.key().size();
411  std::string s5; for (int i=0; i<n; ++i) s5.append(" "); s5.append("|");
412 
413 
414  out<<"|---------------------------------------------------------------------|"
415  <<endmsg;
416  out<<"| Pixel space points | "<<m_spacepointsPixel.key() <<s2
417  <<endmsg;
418  out<<"| SCT space points | "<<m_spacepointsSCT.key()<<s3
419  <<endmsg;
420  out<<"| Overlap space points | "<<m_spacepointsOverlap.key()<<s4
421  <<endmsg;
422  out<<"| BeamConditionsService | "<<m_beamSpotKey.key()<<s5
423  <<endmsg;
424  out<<"| usePixel | "
425  <<std::setw(12)<<m_pixel
426  <<" |"<<endmsg;
427  out<<"| useSCT | "
428  <<std::setw(12)<<m_sct
429  <<" |"<<endmsg;
430  out<<"| maxSize | "
431  <<std::setw(12)<<m_maxsize
432  <<" |"<<endmsg;
433  out<<"| maxSizeSP | "
434  <<std::setw(12)<<m_maxsizeSP
435  <<" |"<<endmsg;
436  out<<"| pTmin (mev) | "
437  <<std::setw(12)<<std::setprecision(5)<<m_ptmin
438  <<" |"<<endmsg;
439  out<<"| |eta| <= | "
440  <<std::setw(12)<<std::setprecision(5)<<m_etamax
441  <<" |"<<endmsg;
442  out<<"| max radius SP | "
443  <<std::setw(12)<<std::setprecision(5)<<m_r_rmax
444  <<" |"<<endmsg;
445  out<<"| radius step | "
446  <<std::setw(12)<<std::setprecision(5)<<m_r_rstep
447  <<" |"<<endmsg;
448  out<<"| min Z-vertex position | "
449  <<std::setw(12)<<std::setprecision(5)<<m_zmin
450  <<" |"<<endmsg;
451  out<<"| max Z-vertex position | "
452  <<std::setw(12)<<std::setprecision(5)<<m_zmax
453  <<" |"<<endmsg;
454  out<<"| min radius first SP(2) | "
455  <<std::setw(12)<<std::setprecision(5)<<m_r1minv
456  <<" |"<<endmsg;
457  out<<"| min radius second SP(2) | "
458  <<std::setw(12)<<std::setprecision(5)<<m_r2minv
459  <<" |"<<endmsg;
460  out<<"| max radius first SP(2) | "
461  <<std::setw(12)<<std::setprecision(5)<<m_r1maxv
462  <<" |"<<endmsg;
463  out<<"| max radius second SP(2) | "
464  <<std::setw(12)<<std::setprecision(5)<<m_r2maxv
465  <<" |"<<endmsg;
466  out<<"| min space points dR | "
467  <<std::setw(12)<<std::setprecision(5)<<m_drmin
468  <<" |"<<endmsg;
469  out<<"| max space points dR | "
470  <<std::setw(12)<<std::setprecision(5)<<m_drmax
471  <<" |"<<endmsg;
472  out<<"| max dZ impact | "
473  <<std::setw(12)<<std::setprecision(5)<<m_dzver
474  <<" |"<<endmsg;
475  out<<"| max dZ/dR impact | "
476  <<std::setw(12)<<std::setprecision(5)<<m_dzdrver
477  <<" |"<<endmsg;
478  out<<"| max impact | "
479  <<std::setw(12)<<std::setprecision(5)<<m_diver
480  <<" |"<<endmsg;
481  out<<"| max impact pps | "
482  <<std::setw(12)<<std::setprecision(5)<<m_diverpps
483  <<" |"<<endmsg;
484  out<<"| max impact sss | "
485  <<std::setw(12)<<std::setprecision(5)<<m_diversss
486  <<" |"<<endmsg;
487  out<<"|---------------------------------------------------------------------|"
488  <<endmsg;
489  out<<"| Beam X center | "
490  <<std::setw(12)<<std::setprecision(5)<<data.xbeam[0]
491  <<" |"<<endmsg;
492  out<<"| Beam Y center | "
493  <<std::setw(12)<<std::setprecision(5)<<data.ybeam[0]
494  <<" |"<<endmsg;
495  out<<"| Beam Z center | "
496  <<std::setw(12)<<std::setprecision(5)<<data.zbeam[0]
497  <<" |"<<endmsg;
498  out<<"| Beam X-axis direction | "
499  <<std::setw(12)<<std::setprecision(5)<<data.xbeam[1]
500  <<std::setw(12)<<std::setprecision(5)<<data.xbeam[2]
501  <<std::setw(12)<<std::setprecision(5)<<data.xbeam[3]
502  <<" |"<<endmsg;
503  out<<"| Beam Y-axis direction | "
504  <<std::setw(12)<<std::setprecision(5)<<data.ybeam[1]
505  <<std::setw(12)<<std::setprecision(5)<<data.ybeam[2]
506  <<std::setw(12)<<std::setprecision(5)<<data.ybeam[3]
507  <<" |"<<endmsg;
508  out<<"| Beam Z-axis direction | "
509  <<std::setw(12)<<std::setprecision(5)<<data.zbeam[1]
510  <<std::setw(12)<<std::setprecision(5)<<data.zbeam[2]
511  <<std::setw(12)<<std::setprecision(5)<<data.zbeam[3]
512  <<" |"<<endmsg;
513  out<<"|---------------------------------------------------------------------|"
514  <<endmsg;
515  return out;
516 }
517 
519 // Dumps event information into the MsgStream
521 
522 MsgStream& InDet::SiSpacePointsSeedMaker_HeavyIon::dumpEvent(EventData& data, MsgStream& out)
523 {
524  out<<"|---------------------------------------------------------------------|"
525  <<endmsg;
526  out<<"| data.ns | "
527  <<std::setw(12)<<data.ns
528  <<" |"<<endmsg;
529  out<<"| data.nsaz | "
530  <<std::setw(12)<<data.nsaz
531  <<" |"<<endmsg;
532  out<<"| data.nsazv | "
533  <<std::setw(12)<<data.nsazv
534  <<" |"<<endmsg;
535  out<<"| seeds | "
536  <<std::setw(12)<<data.l_seeds.size()
537  <<" |"<<endmsg;
538  out<<"|---------------------------------------------------------------------|"
539  <<endmsg;
540  return out;
541 }
542 
544 // Find next set space points
546 
547 void InDet::SiSpacePointsSeedMaker_HeavyIon::findNext(EventData& data) const
548 {
549  if (data.endlist) return;
550 
551  data.i_seede = data.l_seeds.begin();
552  if (data.mode==0 || data.mode==1) production2Sp(data);
553  else if (data.mode==2 || data.mode==3) production3Sp(data);
554  else if (data.mode==5 || data.mode==6) production3Sp(data);
555 
556  data.i_seed = data.l_seeds.begin();
557  ++data.nlist;
558 }
559 
561 // New and old list vertices comparison
563 
564 bool InDet::SiSpacePointsSeedMaker_HeavyIon::newVertices(EventData& data, const std::list<Trk::Vertex>& lV) const
565 {
566  unsigned int s1 = data.l_vertex.size();
567  unsigned int s2 = lV.size();
568 
569  if (s1==0 && s2==0) return false;
570 
571  data.l_vertex.clear();
572 
573  for (const Trk::Vertex& v: lV) {
574  data.l_vertex.insert(static_cast<float>(v.position().z()));
575  if (data.l_vertex.size() >= m_maxNumberVertices) break;
576  }
577  return false;
578 }
579 
581 // Initiate frame work for seed generator
583 
584 void InDet::SiSpacePointsSeedMaker_HeavyIon::buildFrameWork()
585 {
586  m_ptmin = std::max( std::abs(m_ptmin), float(100.*m_fieldScale));
587  m_etamax = std::abs(m_etamax) ;
588  m_dzdrmax = 1.f/std::tan(2.f*std::atan(exp(-m_etamax)));
589  m_dzdrmin =-m_dzdrmax ;
590  m_COF = 134*.05*9. ;
591  m_ipt = 1.f/std::abs(.9f*m_ptmin) ;
592  m_ipt2 = m_ipt*m_ipt ;
593 
594  // Build radius sorted containers
595  //
596  m_r_size = static_cast<int>((m_r_rmax+.1)/m_r_rstep);
597 
598  // Build radius-azimuthal sorted containers
599  //
600  constexpr float pi2 = 2.*M_PI;
601  const int NFmax = SizeRF;
602  const float sFmax = static_cast<float>(NFmax)/pi2;
603  const float sFmin = 100./60.;
604 
605  m_sF = m_ptmin/m_fieldScale /60.;
606  if (m_sF > sFmax ) m_sF = sFmax;
607  else if (m_sF < sFmin) m_sF = sFmin;
608  m_fNmax = static_cast<int>(pi2*m_sF);
609  if (m_fNmax >=NFmax) m_fNmax = NFmax-1;
610 
611  // Build radius-azimuthal-Z sorted containers for Z-vertices
612  //
613  const int NFtmax = SizeRFV;
614  const float sFvmax = static_cast<float>(NFtmax)/pi2;
615  m_sFv = m_ptmin/m_fieldScale /120.f;
616  if (m_sFv > sFvmax) m_sFv = sFvmax;
617  m_fvNmax = static_cast<int>(pi2*m_sFv);
618  if (m_fvNmax>=NFtmax) m_fvNmax = NFtmax-1;
619 
620  // Build maps for radius-azimuthal-Z sorted collections
621  //
622  for (int f=0; f<=m_fNmax; ++f) {
623  int fb = f-1;
624  if (fb<0) fb = m_fNmax;
625  int ft = f+1;
626  if (ft>m_fNmax) ft = 0;
627 
628  // For each azimuthal region loop through all Z regions
629  //
630  for (int z=0; z<SizeZ; ++z) {
631  int a = f *SizeZ+z;
632  int b = fb*SizeZ+z;
633  int c = ft*SizeZ+z;
634  m_rfz_b [a] = 3; m_rfz_t [a] = 3;
635  m_rfz_ib[a][0] = a; m_rfz_it[a][0] = a;
636  m_rfz_ib[a][1] = b; m_rfz_it[a][1] = b;
637  m_rfz_ib[a][2] = c; m_rfz_it[a][2] = c;
638  if (z==5) {
639  m_rfz_t [a] = 9 ;
640  m_rfz_it[a][3] = a+1;
641  m_rfz_it[a][4] = b+1;
642  m_rfz_it[a][5] = c+1;
643  m_rfz_it[a][6] = a-1;
644  m_rfz_it[a][7] = b-1;
645  m_rfz_it[a][8] = c-1;
646  } else if (z> 5) {
647  m_rfz_b [a] = 6 ;
648  m_rfz_ib[a][3] = a-1;
649  m_rfz_ib[a][4] = b-1;
650  m_rfz_ib[a][5] = c-1;
651  if (z<10) {
652  m_rfz_t [a] = 6 ;
653  m_rfz_it[a][3] = a+1;
654  m_rfz_it[a][4] = b+1;
655  m_rfz_it[a][5] = c+1;
656  }
657  } else {
658  m_rfz_b [a] = 6 ;
659  m_rfz_ib[a][3] = a+1;
660  m_rfz_ib[a][4] = b+1;
661  m_rfz_ib[a][5] = c+1;
662  if (z>0) {
663  m_rfz_t [a] = 6 ;
664  m_rfz_it[a][3] = a-1;
665  m_rfz_it[a][4] = b-1;
666  m_rfz_it[a][5] = c-1;
667  }
668  }
669  if (z==3) {
670  m_rfz_b[a] = 9;
671  m_rfz_ib[a][6] = a+2;
672  m_rfz_ib[a][7] = b+2;
673  m_rfz_ib[a][8] = c+2;
674  } else if (z==7) {
675  m_rfz_b[a] = 9;
676  m_rfz_ib[a][6] = a-2;
677  m_rfz_ib[a][7] = b-2;
678  m_rfz_ib[a][8] = c-2;
679  }
680  }
681  }
682 
683  // Build maps for radius-azimuthal-Z sorted collections for Z
684  //
685  for (int f=0; f<=m_fvNmax; ++f) {
686  int fb = f-1; if (fb<0 ) fb=m_fvNmax;
687  int ft = f+1; if (ft>m_fvNmax) ft=0;
688 
689  // For each azimuthal region loop through central Z regions
690  //
691  for (int z=0; z<SizeZV; ++z) {
692  int a = f *SizeZV+z;
693  int b = fb*SizeZV+z;
694  int c = ft*SizeZV+z;
695  m_rfzv_n[a] = 3;
696  m_rfzv_i[a][0] = a;
697  m_rfzv_i[a][1] = b;
698  m_rfzv_i[a][2] = c;
699  if (z>1) {
700  m_rfzv_n[a] = 6;
701  m_rfzv_i[a][3] = a-1;
702  m_rfzv_i[a][4] = b-1;
703  m_rfzv_i[a][5] = c-1;
704  } else if (z<1) {
705  m_rfzv_n[a] = 6;
706  m_rfzv_i[a][3] = a+1;
707  m_rfzv_i[a][4] = b+1;
708  m_rfzv_i[a][5] = c+1;
709  }
710  }
711  }
712 }
713 
715 // Initiate beam frame work for seed generator
717 
718 void InDet::SiSpacePointsSeedMaker_HeavyIon::buildBeamFrameWork(const EventContext& ctx, EventData& data) const
719 {
720  SG::ReadCondHandle<InDet::BeamSpotData> beamSpotHandle{m_beamSpotKey, ctx};
721 
722  const Amg::Vector3D& cb = beamSpotHandle->beamPos();
723  double tx = std::tan(beamSpotHandle->beamTilt(0));
724  double ty = std::tan(beamSpotHandle->beamTilt(1));
725 
726  double ph = atan2(ty,tx);
727  double th = acos(1./sqrt(1.+tx*tx+ty*ty));
728  double sint = sin(th);
729  double cost = cos(th);
730  double sinp = sin(ph);
731  double cosp = cos(ph);
732 
733  data.xbeam[0] = static_cast<float>(cb.x()) ;
734  data.xbeam[1] = static_cast<float>(cost*cosp*cosp+sinp*sinp);
735  data.xbeam[2] = static_cast<float>(cost*sinp*cosp-sinp*cosp);
736  data.xbeam[3] =-static_cast<float>(sint*cosp );
737 
738  data.ybeam[0] = static_cast<float>(cb.y()) ;
739  data.ybeam[1] = static_cast<float>(cost*cosp*sinp-sinp*cosp);
740  data.ybeam[2] = static_cast<float>(cost*sinp*sinp+cosp*cosp);
741  data.ybeam[3] =-static_cast<float>(sint*sinp );
742 
743  data.zbeam[0] = static_cast<float>(cb.z()) ;
744  data.zbeam[1] = static_cast<float>(sint*cosp) ;
745  data.zbeam[2] = static_cast<float>(sint*sinp) ;
746  data.zbeam[3] = static_cast<float>(cost) ;
747 }
748 
750 // Initiate beam frame work for seed generator
752 
753 void InDet::SiSpacePointsSeedMaker_HeavyIon::convertToBeamFrameWork
754 (EventData& data, const Trk::SpacePoint*const& sp,float* r)
755 {
756  r[0] = static_cast<float>(sp->globalPosition().x())-data.xbeam[0];
757  r[1] = static_cast<float>(sp->globalPosition().y())-data.ybeam[0];
758  r[2] = static_cast<float>(sp->globalPosition().z())-data.zbeam[0];
759 }
760 
762 // Initiate space points seed maker
764 
765 void InDet::SiSpacePointsSeedMaker_HeavyIon::fillLists(EventData& data) const
766 {
767  constexpr float pi2 = 2.*M_PI;
768  std::vector<InDet::SiSpacePointForSeed*>::iterator r;
769 
770  for (int i=0; i<m_r_size; ++i) {
771  if (!data.r_map[i]) continue;
772  r = data.r_Sorted[i].begin();
773 
774  while (r!=data.r_Sorted[i].end()) {
775 
776  // Azimuthal angle sort
777  //
778  float F = (*r)->phi();
779  if (F<0.) F+=pi2;
780 
781  int f = static_cast<int>(F*m_sF);
782  if (f < 0) f = m_fNmax;
783  else if (f > m_fNmax) f = 0;
784 
785  int z;
786  float Z = (*r)->z();
787 
788  // Azimuthal angle and Z-coordinate sort
789  //
790  if (Z>0.) {
791  Z< 250.?z=5:Z< 450.?z=6:Z< 925.?z=7:Z< 1400.?z=8:Z< 2500.?z=9:z=10;
792  } else {
793  Z>-250.?z=5:Z>-450.?z=4:Z>-925.?z=3:Z>-1400.?z=2:Z>-2500.?z=1:z= 0;
794  }
795  int n = f*SizeZ+z;
796  ++data.nsaz;
797  data.rfz_Sorted[n].push_back(*r);
798  if (!data.rfz_map[n]++) data.rfz_index[data.nrfz++] = n;
799 
800  if ((*r)->spacepoint->clusterList().second == 0 && z>=3 && z<=7) {
801  z<=4 ? z=0 : z>=6 ? z=2 : z=1;
802 
803  // Azimuthal angle and Z-coordinate sort for fast vertex search
804  //
805  f = static_cast<int>(F*m_sFv);
806  if (f < 0) f += m_fvNmax;
807  else if (f> m_fvNmax) f -= m_fvNmax;
808  n = f*SizeZV+z;
809  ++data.nsazv;
810  data.rfzv_Sorted[n].push_back(*r);
811  if (!data.rfzv_map[n]++) data.rfzv_index[data.nrfzv++] = n;
812  }
813  r = data.r_Sorted[i].erase(r);
814  }
815  data.r_map[i] = 0;
816  }
817  data.nr = 0;
818  data.state = 0;
819 }
820 
822 // Erase space point information
824 
825 void InDet::SiSpacePointsSeedMaker_HeavyIon::erase(EventData& data)
826 {
827  for (int i=0; i<data.nr; ++i) {
828  int n = data.r_index[i];
829  data.r_map[n] = 0;
830  data.r_Sorted[n].clear();
831  }
832 
833  for (int i=0; i<data.nrfz; ++i) {
834  int n = data.rfz_index[i];
835  data.rfz_map[n] = 0;
836  data.rfz_Sorted[n].clear();
837  }
838 
839  for (int i=0; i<data.nrfzv; ++i) {
840  int n = data.rfzv_index[i];
841  data.rfzv_map[n] = 0;
842  data.rfzv_Sorted[n].clear();
843  }
844  data.state = 0;
845  data.ns = 0;
846  data.nsaz = 0;
847  data.nsazv = 0;
848  data.nr = 0;
849  data.nrfz = 0;
850  data.nrfzv = 0;
851 }
852 
854 // 2 space points seeds production
856 
857 void InDet::SiSpacePointsSeedMaker_HeavyIon::production2Sp(EventData& data) const
858 {
859  if (data.nsazv<2) return;
860 
861  std::vector<InDet::SiSpacePointForSeed*>::iterator r0,r0e,r,re;
862  int nseed = 0;
863 
864  // Loop thorugh all azimuthal regions
865  //
866  for (int f=data.fvNmin; f<=m_fvNmax; ++f) {
867 
868  // For each azimuthal region loop through Z regions
869  //
870  int z = 0;
871  if (!data.endlist) z = data.zMin;
872  for (; z<SizeZV; ++z) {
873  int a = f*SizeZV+z;
874  if (!data.rfzv_map[a]) continue;
875  r0 = data.rfzv_Sorted[a].begin();
876  r0e = data.rfzv_Sorted[a].end ();
877 
878  if (!data.endlist) {
879  r0 = data.rMin;
880  data.endlist = true;
881  }
882 
883  // Loop through trigger space points
884  //
885  for (; r0!=r0e; ++r0) {
886  float X = (*r0)->x();
887  float Y = (*r0)->y();
888  float R = (*r0)->radius();
889  if (R<m_r2minv) continue;
890  if (R>m_r2maxv) break;
891  float Z = (*r0)->z();
892  float ax = X/R;
893  float ay = Y/R;
894 
895  // Bottom links production
896  //
897  int NB = m_rfzv_n[a];
898  for (int i=0; i<NB; ++i) {
899  int an = m_rfzv_i[a][i];
900  if (!data.rfzv_map[an]) continue;
901 
902  r = data.rfzv_Sorted[an].begin();
903  re = data.rfzv_Sorted[an].end ();
904 
905  for (; r!=re; ++r) {
906  float Rb =(*r)->radius();
907  if (Rb<m_r1minv) continue;
908  if (Rb>m_r1maxv) break;
909  float dR = R-Rb;
910  if (dR<m_drminv) break;
911  if (dR>m_drmax) continue;
912  float dZ = Z-(*r)->z();
913  float Tz = dZ/dR;
914  if (Tz<m_dzdrmin || Tz>m_dzdrmax) continue;
915  float Zo = Z-R*Tz;
916 
917  // Comparison with vertices Z coordinates
918  //
919  if (!isZCompatible(data, Zo, Rb, Tz)) continue;
920 
921  // Momentum cut
922  //
923  float dx =(*r)->x()-X;
924  float dy =(*r)->y()-Y;
925  float x = dx*ax+dy*ay ;
926  float y =-dx*ay+dy*ax ;
927  float xy = x*x+y*y ; if (xy == 0.) continue;
928  float r2 = 1./xy ;
929  float Ut = x*r2 ;
930  float Vt = y*r2 ;
931  float UR = Ut*R+1. ; if (UR == 0.) continue;
932  float A = Vt*R/UR ;
933  float B = Vt-A*Ut ;
934  if (std::abs(B*data.K) > m_ipt*std::sqrt(1.f+A*A)) continue;
935  ++nseed;
936  newSeed(data, (*r)->spacepoint, (*r0)->spacepoint,Zo);
937  }
938  }
939  if (nseed < m_maxsize) continue;
940  data.endlist=false;
941  data.rMin = (++r0);
942  data.fvNmin=f;
943  data.zMin=z;
944  return;
945  }
946  }
947  }
948  data.endlist = true;
949 }
950 
952 // Production 3 space points seeds
954 
955 void InDet::SiSpacePointsSeedMaker_HeavyIon::production3Sp(EventData& data) const
956 {
957  if (data.nsaz<3) return;
958 
959  const int ZI[SizeZ] = {5,6,7,8,9,10,4,3,2,1,0};
960  std::vector<InDet::SiSpacePointForSeed*>::iterator rt[9],rte[9],rb[9],rbe[9];
961  int nseed = 0;
962 
963  // Loop thorugh all azimuthal regions
964  //
965  for (int f=data.fNmin; f<=m_fNmax; ++f) {
966  // For each azimuthal region loop through all Z regions
967  //
968  int z = 0;
969  if (!data.endlist) z = data.zMin;
970 
971  for (; z<SizeZ; ++z) {
972  int a = f*SizeZ+ZI[z];
973  if (!data.rfz_map[a]) continue;
974  int NB = 0, NT = 0;
975  for (int i=0; i<m_rfz_b[a]; ++i) {
976  int an = m_rfz_ib[a][i];
977  if (!data.rfz_map[an]) continue;
978  rb [NB] = data.rfz_Sorted[an].begin();
979  rbe[NB++] = data.rfz_Sorted[an].end();
980  }
981  for (int i=0; i<m_rfz_t[a]; ++i) {
982  int an = m_rfz_it[a][i];
983  if (!data.rfz_map[an]) continue;
984  rt [NT] = data.rfz_Sorted[an].begin();
985  rte[NT++] = data.rfz_Sorted[an].end();
986  }
987  if (data.izvertex) {
988  production3Sp(data, rb, rbe, rt, rte, NB, NT, nseed);
989  } else {
990  production3SpNoVertex(data, rb, rbe, rt, rte, NB, NT, nseed);
991  }
992  if (!data.endlist) {
993  data.fNmin=f;
994  data.zMin = z;
995  return;
996  }
997  }
998  }
999  data.endlist = true;
1000 }
1001 
1003 // Production 3 space points seeds for full scan
1005 
1006 void InDet::SiSpacePointsSeedMaker_HeavyIon::production3Sp
1007 (EventData& data,
1008  std::vector<InDet::SiSpacePointForSeed*>::iterator* rb ,
1009  std::vector<InDet::SiSpacePointForSeed*>::iterator* rbe,
1010  std::vector<InDet::SiSpacePointForSeed*>::iterator* rt ,
1011  std::vector<InDet::SiSpacePointForSeed*>::iterator* rte,
1012  int NB, int NT, int& nseed) const
1013 {
1014  std::vector<InDet::SiSpacePointForSeed*>::iterator r0=rb[0],r;
1015  if (!data.endlist) {r0 = data.rMin; data.endlist = true;}
1016 
1017  // Loop through all trigger space points
1018  //
1019  for (; r0!=rbe[0]; ++r0) {
1020  data.nOneSeeds = 0;
1021  data.mapOneSeeds.erase(data.mapOneSeeds.begin(), data.mapOneSeeds.end());
1022 
1023  float R = (*r0)->radius();
1024 
1025  const Trk::SpacePoint* SP0 = (*r0)->spacepoint;
1026  if (SP0->clusterList().second) break;
1027 
1028  const Trk::Surface* sur0 = (*r0)->sur();
1029  float X = (*r0)->x() ;
1030  float Y = (*r0)->y() ;
1031  float Z = (*r0)->z() ;
1032  int Nb = 0 ;
1033 
1034  // Bottom links production
1035  //
1036  for (int i=0; i<NB; ++i) {
1037  for (r=rb[i]; r!=rbe[i]; ++r) {
1038  float Rb =(*r)->radius();
1039  float dR = R-Rb;
1040  if (dR > m_drmax) {rb[i]=r; continue;}
1041  if (dR < m_drmin) break;
1042  if ((*r)->sur()==sur0) continue;
1043 
1044  float Tz = (Z-(*r)->z())/dR;
1045 
1046  if (Tz < m_dzdrmin || Tz > m_dzdrmax) continue;
1047 
1048  // Comparison with vertices Z coordinates
1049  //
1050  float Zo = Z-R*Tz;
1051  if (!isZCompatible(data, Zo, Rb, Tz)) continue;
1052  data.SP[Nb] = (*r);
1053  if (++Nb==m_maxsizeSP) goto breakb;
1054  }
1055  }
1056  breakb:
1057  if (!Nb || Nb==m_maxsizeSP) continue;
1058  int Nt = Nb;
1059 
1060  // Top links production
1061  //
1062  for (int i=0; i<NT; ++i) {
1063  for (r=rt[i]; r!=rte[i]; ++r) {
1064  float Rt =(*r)->radius();
1065  float dR = Rt-R;
1066  if (dR<m_drmin) {
1067  rt[i]=r;
1068  continue;
1069  }
1070  if (dR>m_drmax) break;
1071  if ( (*r)->sur()==sur0) continue;
1072 
1073  float Tz = ((*r)->z()-Z)/dR;
1074 
1075  if (Tz < m_dzdrmin || Tz > m_dzdrmax) continue;
1076 
1077  // Comparison with vertices Z coordinates
1078  //
1079  float Zo = Z-R*Tz;
1080  if (!isZCompatible(data, Zo, R ,Tz)) continue;
1081  data.SP[Nt] = (*r);
1082  if (++Nt==m_maxsizeSP) goto breakt;
1083  }
1084  }
1085 
1086  breakt:
1087  if (!(Nt-Nb)) continue;
1088 
1089  float covr0 = (*r0)->covr();
1090  float covz0 = (*r0)->covz();
1091 
1092  float ax = X/R;
1093  float ay = Y/R;
1094 
1095  for (int i=0; i<Nt; ++i) {
1096  InDet::SiSpacePointForSeed* sp = data.SP[i];
1097 
1098  float dx = sp->x()-X ;
1099  float dy = sp->y()-Y ;
1100  float dz = sp->z()-Z ;
1101  float x = dx*ax+dy*ay ;
1102  float y =-dx*ay+dy*ax ;
1103  float r2 = 1.f/(x*x+y*y);
1104  float dr = std::sqrt(r2) ;
1105  float tz = dz*dr ;
1106  if (i < Nb) tz = -tz;
1107 
1108  data.Tz[i] = tz ;
1109  data.Zo[i] = Z-R*tz ;
1110  data.R [i] = dr ;
1111  data.U [i] = x*r2 ;
1112  data.V [i] = y*r2 ;
1113  data.Er[i] = (covz0+sp->covz()+tz*tz*(covr0+sp->covr()))*r2;
1114  }
1115 
1116  float imc = m_diver ;
1117  float ipt2 = m_ipt2 ;
1118  float K = data.K ;
1119  float K2 = K*K ;
1120  float COF = m_COF ;
1121  float ipt2K = ipt2/K2 ;
1122  float ipt2C = ipt2*COF ;
1123  float COFK = COF*K2 ;
1124  covr0 *= 2. ;
1125  covz0 *= 2. ;
1126 
1127  //
1128  for (int b=0; b<Nb; ++b) {
1129  const Trk::SpacePoint* SPb = data.SP[b]->spacepoint;
1130 
1131  float Zob = data.Zo[b] ;
1132  float Tzb = data.Tz[b] ;
1133  float Rb2r = data.R [b]*covr0;
1134  float Rb2z = data.R [b]*covz0;
1135  float Erb = data.Er[b] ;
1136  float Vb = data.V [b] ;
1137  float Ub = data.U [b] ;
1138  float Tzb2 = (1.f+Tzb*Tzb) ;
1139  float CSA = Tzb2*COFK ;
1140  float ICSA = Tzb2*ipt2C ;
1141  float dZ = dZVertexMin(data, Zob);
1142  float Iz = (dZ*dZ)/Tzb2 ;
1143 
1144  for (int t=Nb; t<Nt; ++t) {
1145  float Ts = .5f*(Tzb+data.Tz[t]) ;
1146  float dt = Tzb-data.Tz[t] ;
1147  float dT = dt*dt-Erb-data.Er[t]-data.R[t]*(Ts*Ts*Rb2r+Rb2z);
1148  if ( dT > ICSA) continue;
1149  float dU = data.U[t]-Ub; if (dU == 0.) continue ;
1150  float A = (data.V[t]-Vb)/dU ;
1151  float S2 = 1.f+A*A ;
1152  float B = Vb-A*Ub ;
1153  float B2 = B*B ;
1154  if (B2 > ipt2K*S2 || dT*S2 > B2*CSA) continue;
1155  float Im = std::abs((A-B*R)*R) ;
1156 
1157  if ( Im > imc ) continue;
1158  Im = Im*Im+Iz;
1159  newOneSeed(data, SPb, SP0, data.SP[t]->spacepoint, Zob, Im);
1160  }
1161  }
1162  nseed += data.mapOneSeeds.size();
1163  fillSeeds(data);
1164  if (nseed>=m_maxsize) {
1165  data.endlist=false;
1166  ++r0;
1167  data.rMin = r0;
1168  return;
1169  }
1170  }
1171 }
1172 
1173 
1175 // Production 3 space points seeds for full scan without vertex information
1177 
1178 void InDet::SiSpacePointsSeedMaker_HeavyIon::production3SpNoVertex
1179 (EventData& data,
1180  std::vector<InDet::SiSpacePointForSeed*>::iterator* rb ,
1181  std::vector<InDet::SiSpacePointForSeed*>::iterator* rbe,
1182  std::vector<InDet::SiSpacePointForSeed*>::iterator* rt ,
1183  std::vector<InDet::SiSpacePointForSeed*>::iterator* rte,
1184  int NB, int NT, int& nseed) const
1185 {
1186  std::vector<InDet::SiSpacePointForSeed*>::iterator r0=rb[0],r;
1187  if (!data.endlist) {
1188  r0 = data.rMin;
1189  data.endlist = true;
1190  }
1191 
1192  // Loop through all trigger space points
1193  //
1194  for (; r0!=rbe[0]; ++r0) {
1195  data.nOneSeeds = 0;
1196  data.mapOneSeeds.erase(data.mapOneSeeds.begin(), data.mapOneSeeds.end());
1197 
1198  float R = (*r0)->radius();
1199 
1200  const Trk::SpacePoint* SP0 = (*r0)->spacepoint;
1201 
1202  bool pix = true;
1203  if (SP0->clusterList().second) pix = false;
1204  const Trk::Surface* sur0 = (*r0)->sur();
1205  float X = (*r0)->x() ;
1206  float Y = (*r0)->y() ;
1207  float Z = (*r0)->z() ;
1208  int Nb = 0 ;
1209 
1210  // Bottom links production
1211  //
1212  for (int i=0; i<NB; ++i) {
1213  for (r=rb[i]; r!=rbe[i]; ++r) {
1214  float Rb =(*r)->radius();
1215  float dR = R-Rb;
1216  if (dR > m_drmax) {
1217  rb[i]=r;
1218  continue;
1219  }
1220  if (dR < m_drmin) break;
1221  if ((*r)->sur()==sur0) continue;
1222  if ( !pix && !(*r)->spacepoint->clusterList().second) continue;
1223  float Tz = (Z-(*r)->z())/dR;
1224  if (Tz < m_dzdrmin || Tz > m_dzdrmax) continue;
1225 
1226  // Comparison with vertices Z coordinates
1227  //
1228  float Zo = Z-R*Tz;
1229  if (!isZCompatible(data, Zo, Rb, Tz)) continue;
1230  data.SP[Nb] = (*r);
1231  if (++Nb==m_maxsizeSP) goto breakb;
1232  }
1233  }
1234  breakb:
1235  if (!Nb || Nb==m_maxsizeSP) continue;
1236  int Nt = Nb;
1237 
1238  // Top links production
1239  //
1240  for (int i=0; i<NT; ++i) {
1241  for (r=rt[i]; r!=rte[i]; ++r) {
1242  float Rt =(*r)->radius();
1243  float dR = Rt-R;
1244  if (dR<m_drmin) {
1245  rt[i]=r;
1246  continue;
1247  }
1248  if (dR > m_drmax) break;
1249  if ((*r)->sur()==sur0) continue;
1250  float Tz = ((*r)->z()-Z)/dR;
1251  if (Tz < m_dzdrmin || Tz > m_dzdrmax) continue;
1252 
1253  // Comparison with vertices Z coordinates
1254  //
1255  float Zo = Z-R*Tz;
1256  if (!isZCompatible(data, Zo, R, Tz)) continue;
1257  data.SP[Nt] = (*r);
1258  if (++Nt==m_maxsizeSP) goto breakt;
1259  }
1260  }
1261 
1262  breakt:
1263  if (!(Nt-Nb)) continue;
1264 
1265  float covr0 = (*r0)->covr();
1266  float covz0 = (*r0)->covz();
1267 
1268  float ax = X/R;
1269  float ay = Y/R;
1270 
1271  for (int i=0; i<Nt; ++i) {
1272  InDet::SiSpacePointForSeed* sp = data.SP[i];
1273 
1274  float dx = sp->x()-X ;
1275  float dy = sp->y()-Y ;
1276  float dz = sp->z()-Z ;
1277  float x = dx*ax+dy*ay ;
1278  float y =-dx*ay+dy*ax ;
1279  float r2 = 1.f/(x*x+y*y);
1280  float dr = std::sqrt(r2) ;
1281  float tz = dz*dr ;
1282  if (i < Nb) tz = -tz;
1283 
1284  data.Tz[i] = tz ;
1285  data.Zo[i] = Z-R*tz ;
1286  data.R [i] = dr ;
1287  data.U [i] = x*r2 ;
1288  data.V [i] = y*r2 ;
1289  data.Er[i] = (covz0+sp->covz()+tz*tz*(covr0+sp->covr()))*r2;
1290  }
1291 
1292  float imc = m_diver ;
1293  float imcs = m_diverpps;
1294  float ipt2 = m_ipt2 ;
1295  float K = data.K ;
1296  float K2 = K*K ;
1297  float COF = m_COF ;
1298  float ipt2K = ipt2/K2 ;
1299  float ipt2C = ipt2*COF ;
1300  float COFK = COF*K2 ;
1301  covr0 *= 2. ;
1302  covz0 *= 2. ;
1303 
1304  // Three space points comparison
1305  //
1306  for (int b=0; b<Nb; ++b) {
1307  const Trk::SpacePoint* SPb = data.SP[b]->spacepoint;
1308 
1309  float Zob = data.Zo[b] ;
1310  float Tzb = data.Tz[b] ;
1311  float Rb2r = data.R [b]*covr0;
1312  float Rb2z = data.R [b]*covz0;
1313  float Erb = data.Er[b] ;
1314  float Vb = data.V [b] ;
1315  float Ub = data.U [b] ;
1316  float Tzb2 = (1.f+Tzb*Tzb) ;
1317  float CSA = Tzb2*COFK ;
1318  float ICSA = Tzb2*ipt2C ;
1319 
1320  for (int t=Nb; t<Nt; ++t) {
1321  float Ts = .5f*(Tzb+data.Tz[t]) ;
1322  float dt = Tzb-data.Tz[t] ;
1323  float dT = dt*dt-Erb-data.Er[t]-data.R[t]*(Ts*Ts*Rb2r+Rb2z);
1324  if ( dT > ICSA) continue;
1325  float dU = data.U[t]-Ub;
1326  if (dU == 0.) continue;
1327  float A = (data.V[t]-Vb)/dU ;
1328  float S2 = 1.f+A*A ;
1329  float B = Vb-A*Ub ;
1330  float B2 = B*B ;
1331  if (B2 > ipt2K*S2 || dT*S2 > B2*CSA) continue;
1332  float Im = std::abs((A-B*R)*R) ;
1333 
1334  if (pix) {
1335  if ( Im > imc ) continue;
1336  if (data.SP[t]->spacepoint->clusterList().second && Im > imcs) continue;
1337  } else if (Im > m_diversss) {
1338  continue;
1339  }
1340  newOneSeed(data, SPb, SP0, data.SP[t]->spacepoint, Zob, Im);
1341  }
1342  }
1343  nseed += data.mapOneSeeds.size();
1344  fillSeeds(data);
1345  if (nseed>=m_maxsize) {
1346  data.endlist=false;
1347  ++r0;
1348  data.rMin = r0;
1349  return;
1350  }
1351  }
1352 }
1353 
1355 // New 3 space points seeds from one space points
1357 
1358 void InDet::SiSpacePointsSeedMaker_HeavyIon::newOneSeed
1359 (EventData& data,
1360  const Trk::SpacePoint*& p1,const Trk::SpacePoint*& p2,
1361  const Trk::SpacePoint*& p3,const float& z,const float& q) const
1362 {
1363  if (data.nOneSeeds < m_maxOneSize) {
1364 
1365  data.OneSeeds[data.nOneSeeds].erase();
1366  data.OneSeeds[data.nOneSeeds].add(p1);
1367  data.OneSeeds[data.nOneSeeds].add(p2);
1368  data.OneSeeds[data.nOneSeeds].add(p3);
1369  data.OneSeeds[data.nOneSeeds].setZVertex(static_cast<double>(z));
1370  data.mapOneSeeds.insert(std::make_pair(q, &(data.OneSeeds[data.nOneSeeds])));
1371  ++data.nOneSeeds;
1372  } else {
1373  std::multimap<float,InDet::SiSpacePointsSeed*>::reverse_iterator
1374  l = data.mapOneSeeds.rbegin();
1375  if ((*l).first <= q) return;
1376 
1377  InDet::SiSpacePointsSeed* s = (*l).second;
1378  s->erase();
1379  s->add(p1);
1380  s->add(p2);
1381  s->add(p3);
1382  s->setZVertex(static_cast<double>(z));
1383  std::multimap<float,InDet::SiSpacePointsSeed*>::iterator
1384  i = data.mapOneSeeds.insert(std::make_pair(q,s));
1385 
1386  for (++i; i!=data.mapOneSeeds.end(); ++i) {
1387  if ((*i).second==s) {
1388  data.mapOneSeeds.erase(i);
1389  return;
1390  }
1391  }
1392  }
1393 }
1394 
1395 const InDet::SiSpacePointsSeed* InDet::SiSpacePointsSeedMaker_HeavyIon::next(const EventContext&, EventData& data) const
1396 {
1397  if (not data.initialized) initializeEventData(data);
1398 
1399  if (data.i_seed==data.i_seede) {
1400  findNext(data);
1401  //cppcheck-suppress identicalInnerCondition
1402  if (data.i_seed==data.i_seede) return nullptr;
1403  }
1404  return &(*data.i_seed++);
1405 }
1406 
1407 bool InDet::SiSpacePointsSeedMaker_HeavyIon::isZCompatible
1408 (EventData& data, float& Zv, float& R, float& T) const
1409 {
1410  if (Zv < m_zmin || Zv > m_zmax) return false;
1411  if (!data.izvertex) return true;
1412 
1413  float dZmin = std::numeric_limits<float>::max();
1414  for (const float& v: data.l_vertex) {
1415  float dZ = std::abs(v-Zv);
1416  if (dZ<dZmin) dZmin=dZ;
1417  }
1418  return dZmin < (m_dzver+m_dzdrver*R)*sqrt(1.+T*T);
1419 }
1420 
1421 float InDet::SiSpacePointsSeedMaker_HeavyIon::dZVertexMin(EventData& data, float& Z)
1422 {
1423  float dZm = std::numeric_limits<float>::max();
1424  for (const float& v: data.l_vertex) {
1425  float dZ = std::abs(v-Z);
1426  if (dZ<dZm) dZm = dZ;
1427  }
1428  return dZm;
1429 }
1430 
1432 // New space point for seeds
1434 
1435 InDet::SiSpacePointForSeed* InDet::SiSpacePointsSeedMaker_HeavyIon::newSpacePoint
1436 (EventData& data, const Trk::SpacePoint*const& sp)
1437 {
1438  InDet::SiSpacePointForSeed* sps = nullptr;
1439 
1440  float r[3];
1441  convertToBeamFrameWork(data, sp, r);
1442 
1443  if (data.i_spforseed!=data.l_spforseed.end()) {
1444  sps = &(*data.i_spforseed++);
1445  sps->set(sp,r);
1446  } else {
1447  data.l_spforseed.emplace_back(sp, r);
1448  sps = &(data.l_spforseed.back());
1449  data.i_spforseed = data.l_spforseed.end();
1450  }
1451 
1452  return sps;
1453 }
1454 
1456 // New 2 space points seeds
1458 
1459 void InDet::SiSpacePointsSeedMaker_HeavyIon::newSeed
1460 (EventData& data,
1461  const Trk::SpacePoint*& p1, const Trk::SpacePoint*& p2,
1462  const float& z)
1463 {
1464  if (data.i_seede!=data.l_seeds.end()) {
1465  InDet::SiSpacePointsSeed* s = &(*data.i_seede++);
1466  s->erase();
1467  s->add(p1);
1468  s->add(p2);
1469  s->setZVertex(static_cast<double>(z));
1470  } else {
1471  data.l_seeds.emplace_back(p1, p2, z);
1472  data.i_seede = data.l_seeds.end();
1473  }
1474 }
1475 
1477 // New 3 space points seeds
1479 
1480 void InDet::SiSpacePointsSeedMaker_HeavyIon::newSeed
1481 (EventData& data,
1482  const Trk::SpacePoint*& p1, const Trk::SpacePoint*& p2,
1483  const Trk::SpacePoint*& p3, const float& z)
1484 {
1485  if (data.i_seede!=data.l_seeds.end()) {
1486  InDet::SiSpacePointsSeed* s = &(*data.i_seede++);
1487  s->erase();
1488  s->add(p1);
1489  s->add(p2);
1490  s->add(p3);
1491  s->setZVertex(static_cast<double>(z));
1492  } else {
1493  data.l_seeds.emplace_back(p1, p2, p3, z);
1494  data.i_seede = data.l_seeds.end();
1495  }
1496 }
1497 
1499 // Fill seeds
1501 
1502 void InDet::SiSpacePointsSeedMaker_HeavyIon::fillSeeds(EventData& data)
1503 {
1504  std::multimap<float, InDet::SiSpacePointsSeed*>::iterator
1505  l = data.mapOneSeeds.begin(),
1506  le = data.mapOneSeeds.end ();
1507  for (; l!=le; ++l) {
1508  if (data.i_seede!=data.l_seeds.end()) {
1509  InDet::SiSpacePointsSeed* s = &(*data.i_seede++);
1510  *s = *(*l).second;
1511  } else {
1512  data.l_seeds.emplace_back(*(*l).second);
1513  data.i_seede = data.l_seeds.end();
1514  }
1515  }
1516 }
1517 
1518 void InDet::SiSpacePointsSeedMaker_HeavyIon::initializeEventData(EventData& data) const {
1519  data.initialize(EventData::ToolType::HeavyIon,
1520  m_maxsizeSP,
1521  m_maxOneSize,
1522  0, // maxsize not used
1523  m_r_size,
1524  0, // sizeRF not used
1525  SizeRFZ,
1526  SizeRFZV,
1527  false); // checkEta not used
1528 }
1529 
1530 void InDet::SiSpacePointsSeedMaker_HeavyIon::writeNtuple(const SiSpacePointsSeed*, const Trk::Track*, int, long) const{
1531 }
1532 
1533 bool InDet::SiSpacePointsSeedMaker_HeavyIon::getWriteNtupleBoolProperty() const{
1534  return false;
1535 }
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