2 // Original: AliHLTMerger.cxx,v 1.16 2005/06/14 10:55:21 cvetan
4 /**************************************************************************
5 * This file is property of and copyright by the ALICE HLT Project *
6 * ALICE Experiment at CERN, All rights reserved. *
8 * Primary Authors: Uli Frankenfeld, maintained by *
9 * Matthias Richter <Matthias.Richter@ift.uib.no> *
10 * for The ALICE HLT Project. *
12 * Permission to use, copy, modify and distribute this software and its *
13 * documentation strictly for non-commercial purposes is hereby granted *
14 * without fee, provided that the above copyright notice appears in all *
15 * copies and that both the copyright notice and this permission notice *
16 * appear in the supporting documentation. The authors make no claims *
17 * about the suitability of this software for any purpose. It is *
18 * provided "as is" without express or implied warranty. *
19 **************************************************************************/
21 /** @file AliHLTTPCMerger.cxx
22 @author Uli Frankenfeld, maintained by Matthias Richter
24 @brief The HLT TPC merger base class
27 #include "AliHLTTPCLogging.h"
28 #include "AliHLTTPCMerger.h"
29 #include "AliHLTTPCTrack.h"
30 #include "AliHLTTPCTrackSegmentData.h"
31 #include "AliHLTTPCTransform.h"
32 #include "AliHLTTPCTrackArray.h"
34 #ifdef use_root //use root ntuple for slow merge
44 ClassImp(AliHLTTPCMerger)
46 AliHLTTPCMerger::AliHLTTPCMerger()
55 AliHLTTPCMerger::~AliHLTTPCMerger()
61 void AliHLTTPCMerger::InitMerger(Int_t ntrackarrays,Char_t *tracktype)
63 //Used to setup all arrays
65 if(strcmp(tracktype,"AliHLTTPCTrack")==0) fTrackType='t';
66 else if(strcmp(tracktype,"AliHLTTPCConfMapTrack")==0) fTrackType='c';
67 #ifdef INCLUDE_TPC_HOUGH
68 else if(strcmp(tracktype,"AliHLTTPCHoughTrack")==0) fTrackType='h';
71 LOG(AliHLTTPCLog::kError,"AliHLTTPCMerger::AliHLTTPCMerger","Track types")
72 <<"Unknown tracktype"<<ENDLOG;
73 SetArray(ntrackarrays);
78 void AliHLTTPCMerger::DeleteArray()
81 for(Int_t i=0; i<fNIn;i++)
83 if(!fInTrack[i]) continue;
95 void AliHLTTPCMerger::SetArray(Int_t nin)
98 DeleteArray();//Make sure arrays are cleaned
101 fInTrack = new AliHLTTPCTrackArray*[fNIn];
102 for(Int_t i=0; i<fNIn;i++)
104 #ifdef INCLUDE_TPC_HOUGH
106 fInTrack[i] = new AliHLTTPCTrackArray("AliHLTTPCHoughTrack");
109 fInTrack[i] = new AliHLTTPCTrackArray("AliHLTTPCTrack");
112 #ifdef INCLUDE_TPC_HOUGH
114 fOutTrack= new AliHLTTPCTrackArray("AliHLTTPCHoughTrack");
117 fOutTrack= new AliHLTTPCTrackArray("AliHLTTPCTrack");
120 void AliHLTTPCMerger::Reset()
123 for(Int_t i=0; i<fNIn;i++)
125 fInTrack[i]->Reset();
130 void AliHLTTPCMerger::FillTracks(Int_t ntracks, AliHLTTPCTrackSegmentData* tr)
132 //Read tracks from shared memory (or memory)
133 AliHLTTPCTrackArray *destination = GetInTracks(fCurrentTracks);
135 destination->FillTracks(ntracks, tr, fSlice);
137 destination->FillTracks(ntracks, tr);
140 void AliHLTTPCMerger::AddAllTracks()
143 for(Int_t i=0; i<GetNIn();i++)
145 AliHLTTPCTrackArray *in = GetInTracks(i);
146 AliHLTTPCTrackArray *out = GetOutTracks();
151 void AliHLTTPCMerger::SortGlobalTracks(AliHLTTPCTrack **tracks, Int_t ntrack)
154 AliHLTTPCTrack **tmp = new AliHLTTPCTrack*[ntrack];
155 for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
156 Int_t *t = new Int_t[ntrack];
157 for(Int_t i=0;i<ntrack;i++) t[i]=-1;
159 for(Int_t j=0;j<ntrack;j++)
163 for(Int_t i=0;i<ntrack;i++)
165 if(!tracks[i]) continue;
166 Double_t rr=pow(tracks[i]->GetFirstPointX(),2)+pow(tracks[i]->GetFirstPointY(),2);
176 for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
181 void AliHLTTPCMerger::SortTracks(AliHLTTPCTrack **tracks, Int_t ntrack) const
184 AliHLTTPCTrack **tmp = new AliHLTTPCTrack*[ntrack];
185 for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
186 Int_t *t = new Int_t[ntrack];
187 for(Int_t i=0;i<ntrack;i++) t[i]=-1;
189 for(Int_t j=0;j<ntrack;j++)
193 for(Int_t i=0;i<ntrack;i++)
195 if(!tracks[i]) continue;
196 if(tracks[i]->GetFirstPointX()<minx)
198 minx=tracks[i]->GetFirstPointX();
205 for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
210 void AliHLTTPCMerger::AddTrack(AliHLTTPCTrackArray *mergedtrack,AliHLTTPCTrack *track)
213 AliHLTTPCTrack *t[1];
215 MultiMerge(mergedtrack,t,1);
218 AliHLTTPCTrack * AliHLTTPCMerger::MergeTracks(AliHLTTPCTrackArray *mergedtrack,AliHLTTPCTrack *t0,AliHLTTPCTrack *t1)
221 AliHLTTPCTrack *t[2];
225 return MultiMerge(mergedtrack,t,2);
228 AliHLTTPCTrack * AliHLTTPCMerger::MultiMerge(AliHLTTPCTrackArray *mergedtracks,AliHLTTPCTrack **tracks, Int_t ntrack)
230 //multi merge the tracks
233 for(Int_t i=0;i<ntrack;i++)
235 nps+=tracks[i]->GetNHits();
237 if(nps>AliHLTTPCTransform::GetNRows())
239 LOG(AliHLTTPCLog::kWarning,"AliHLTTPCMerger::MultiMerge","Adding Points")
240 <<AliHLTTPCLog::kDec<<"Too many Points: "<<nps<<ENDLOG;
245 AliHLTTPCTrack *newtrack = mergedtracks->NextTrack();
247 UInt_t * nn = new UInt_t[AliHLTTPCTransform::GetNRows()];
250 // for(Int_t i=0;i<ntrack;i++){
251 for(Int_t i=ntrack-1;i>=0;i--)
253 memcpy(&nn[nps],tracks[i]->GetHitNumbers(),tracks[i]->GetNHits()*sizeof(UInt_t));
254 nps+=tracks[i]->GetNHits();
256 AliHLTTPCTrack *tpf=tracks[0];
257 AliHLTTPCTrack *tpl=tracks[ntrack-1];
258 AliHLTTPCTrack *best = tpf;
259 if(tpf->GetNHits()<tpl->GetNHits() && Is2Global())
260 best = tpl;//Best means = most points and therefore best fit (in global case)
262 newtrack->SetNHits(nps);
263 newtrack->SetHits(nps,nn);
264 newtrack->SetFirstPoint(tpf->GetFirstPointX(),tpf->GetFirstPointY(),tpf->GetFirstPointZ());
265 newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
266 newtrack->SetPt(best->GetPt());
267 newtrack->SetPsi(best->GetPsi());
268 newtrack->SetTgl(best->GetTgl());
269 newtrack->SetCharge(tpf->GetCharge());
274 void* AliHLTTPCMerger::GetNtuple(char *varlist) const
278 TNtuple* nt = new TNtuple("ntuple","ntuple",varlist);
285 void* AliHLTTPCMerger::GetNtuple() const
289 TNtuple* nt = new TNtuple("ntuple","ntuple",
290 "dx:dy:dz:dk:dpsi:dtgl:dq:disx:disy:disz:dis:n0:n1:diff:drx:dry:drz");
297 Bool_t AliHLTTPCMerger::WriteNtuple(char *filename, void* nt) const
301 TNtuple *ntuple=(TNtuple *) nt;
302 TFile *f = new TFile(filename,"RECREATE");
312 void AliHLTTPCMerger::FillNtuple(void *nt,AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
316 if(outertrack->IsPoint()&&innertrack->IsPoint())
318 data[0] =Float_t(innertrack->GetPointX()-outertrack->GetPointX());
319 data[1] =Float_t(innertrack->GetPointY()-outertrack->GetPointY());
320 data[2] =Float_t(innertrack->GetPointZ()-outertrack->GetPointZ());
321 data[3] =Float_t(innertrack->GetKappa()-outertrack->GetKappa());
322 Double_t psi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
323 if(psi>AliHLTTPCTransform::Pi()) psi-=AliHLTTPCTransform::TwoPi();
324 else if(psi<-AliHLTTPCTransform::Pi()) psi+=AliHLTTPCTransform::TwoPi();
325 data[4] =Float_t(psi);
326 data[5] =Float_t(innertrack->GetTgl()-outertrack->GetTgl());
327 data[6] =Float_t(innertrack->GetCharge()-outertrack->GetCharge());
328 data[7] =Float_t(innertrack->GetLastPointX()-outertrack->GetFirstPointX());
329 data[8] =Float_t(innertrack->GetLastPointY()-outertrack->GetFirstPointY());
330 data[9] =Float_t(innertrack->GetLastPointZ()-outertrack->GetFirstPointZ());
331 data[10] =sqrt(pow(data[7],2)+pow(data[8],2)+pow(data[9],2));
332 data[11]= outertrack->GetNHits();
333 data[12]= innertrack->GetNHits();
334 data[13] = Float_t(TrackDiff(innertrack,outertrack));
339 TNtuple *ntuple = (TNtuple *) nt;
345 void AliHLTTPCMerger::FillNtuple(void *nt,Float_t *data) const
349 TNtuple *ntuple = (TNtuple *) nt;
354 Double_t AliHLTTPCMerger::GetAngle(Double_t a1,Double_t a2)
357 Double_t da = a1 - a2 + 4*AliHLTTPCTransform::Pi();
358 da = fmod(da,AliHLTTPCTransform::TwoPi());
359 if(da>AliHLTTPCTransform::Pi()) da = AliHLTTPCTransform::TwoPi()-da;
363 void AliHLTTPCMerger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl)
365 //set parameters for merger
368 fMaxKappa = maxkappa;
373 Bool_t AliHLTTPCMerger::IsTrack(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
375 //is track to be merged
376 if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
377 if( (!innertrack->IsPoint()) || (!outertrack->IsPoint()) ) return kFALSE;
378 if(innertrack->GetNHits()+outertrack->GetNHits()>AliHLTTPCTransform::GetNRows()) return kFALSE;
380 if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
381 if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
382 if(fabs(innertrack->GetKappa()-outertrack->GetKappa()) >fMaxKappa) return kFALSE;
383 if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
384 if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
385 //if no rejection up to this point: merge!!
389 Bool_t AliHLTTPCMerger::IsRTrack(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
392 return IsTrack(innertrack,outertrack);
395 Double_t AliHLTTPCMerger::TrackDiff(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
397 //return track difference
399 Double_t x[4],y[4],z[4],dy[4],dz[4];
400 AliHLTTPCTrack *tracks[2];
402 tracks[0] = innertrack;
403 tracks[1] = outertrack;
404 SortGlobalTracks(tracks,2);
405 innertrack = tracks[0];
406 outertrack = tracks[1];
408 x[0] = innertrack->GetFirstPointX();
409 x[1] = innertrack->GetLastPointX();
410 x[2] = outertrack->GetFirstPointX();
411 x[3] = outertrack->GetLastPointX();
413 y[0] = innertrack->GetFirstPointY();
414 y[1] = innertrack->GetLastPointY();
415 y[2] = outertrack->GetFirstPointY();
416 y[3] = outertrack->GetLastPointY();
418 z[0] = innertrack->GetFirstPointZ();
419 z[1] = innertrack->GetLastPointZ();
420 z[2] = outertrack->GetFirstPointZ();
421 z[3] = outertrack->GetLastPointZ();
424 outertrack->CalculatePoint(x[0]);
425 if(!outertrack->IsPoint()) return diff;
426 dy[0] = fabs(y[0] - outertrack->GetPointY());
427 dz[0] = fabs(z[0] - outertrack->GetPointZ());
429 outertrack->CalculatePoint(x[1]);
430 if(!outertrack->IsPoint()) return diff;
431 dy[1] = fabs(y[1] - outertrack->GetPointY());
432 dz[1] = fabs(z[1] - outertrack->GetPointZ());
434 innertrack->CalculatePoint(x[2]);
435 if(!innertrack->IsPoint()) return diff;
436 dy[2] = fabs(y[2] - innertrack->GetPointY());
437 dz[2] = fabs(z[2] - innertrack->GetPointZ());
439 innertrack->CalculatePoint(x[3]);
440 if(!innertrack->IsPoint()) return diff;
441 dy[3] = fabs(y[3] - innertrack->GetPointY());
442 dz[3] = fabs(z[3] - innertrack->GetPointZ());
445 for(Int_t i=0;i<4;i++)
446 diff+=sqrt(dy[i]*dy[i]+dz[i]*dz[i]);
450 void AliHLTTPCMerger::PrintDiff(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
453 if(!innertrack->IsPoint()||!outertrack->IsPoint())
455 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::PrintDiff","No Points")<<ENDLOG;
456 //cerr<<"AliHLTTPCMerger::PrintDiff: No Points"<<endl;
457 //cerr<<"---------------------------"<<endl;
461 Double_t dx = innertrack->GetPointX()-outertrack->GetPointX();
462 Double_t dy = innertrack->GetPointY()-outertrack->GetPointY();
463 Double_t dz = innertrack->GetPointZ()-outertrack->GetPointZ();
464 Double_t dk = innertrack->GetKappa()-outertrack->GetKappa();
465 Double_t dpsi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
466 if(dpsi>AliHLTTPCTransform::Pi()) dpsi-=AliHLTTPCTransform::TwoPi();
467 else if(dpsi<-AliHLTTPCTransform::Pi())dpsi+=AliHLTTPCTransform::TwoPi();
468 //Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
469 Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
470 Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
472 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::PrintDiff","Points") <<"dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<" dk: "<<dk<<" dpsi: "<<dpsi<<" dtgl: "<<dtgl<<" dq: "<<dq<<ENDLOG;
473 //fprintf(stderr,"dx: %4f dy: %4f dz: %4f dk: %4f dpsi: %4f dtgl: %4f dq: %4f\n",dx,dy,dz,dk,dpsi,dtgl,dq);
474 //cerr<<"---------------------------"<<endl;
478 void AliHLTTPCMerger::Print()
481 for(Int_t i=0; i<fNIn; i++)
483 AliHLTTPCTrackArray *ttt= GetInTracks(i);
484 for(Int_t j =0;j<ttt->GetNTracks();j++)
486 AliHLTTPCTrack *track=ttt->GetCheckedTrack(j);
488 track->CalculateHelix();
489 // Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
490 // if(angle<0) angle+=AliHLTTPCTransform::Pi();
491 if(track->CalculatePoint(135))
492 // if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;
493 // if(track->CalculatePoint(track->GetLastPointX()))
494 // if(track->CalculatePoint(0))
496 // PrintTrack(track);
497 // track->CalculateReferencePoint(AliHLTTPCTransform::Pi()/180.);
498 track->CalculateReferencePoint(0.001);
499 Float_t dx=(float)track->GetPointX()-track->GetPointX();
500 Float_t dy=(float)track->GetPointY()-track->GetPointY();
501 Float_t dz=(float)track->GetPointZ()-track->GetPointZ();
502 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::Print","RefPoint") <<"npt: "<<track->GetNHits()<<" dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<ENDLOG;
504 //fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",track->GetNHits(),dx,dy,dz);
505 //cerr<<"---------------------------"<<endl;
511 void AliHLTTPCMerger::PrintTrack(AliHLTTPCTrack *track)
514 fprintf(stderr,"npt: %3d pt: %.2f psi: %.2f tgl: %5.2f q: %2d\n",
515 track->GetNHits(),track->GetPt(),track->GetPsi(),
516 track->GetTgl(),track->GetCharge());
518 "x1: %6.2f y1: %6.2f z1: %6.2f xl: %6.2f yl: %6.2f zl: %6.2f\n",
519 track->GetFirstPointX(),track->GetFirstPointY(),track->GetFirstPointZ(),
520 track->GetLastPointX(),track->GetLastPointY(),track->GetLastPointZ());
524 "R: %.2f Xc: %.2f Yc: %.2f Xp: %.2f Yp: %.2f Zp: %.2f Psip: %.2f\n",
525 track->GetRadius(),track->GetCenterX(),track->GetCenterY(),
526 track->GetPointX(),track->GetPointY(),track->GetPointZ(),
527 track->GetPointPsi());