2 // Original: AliHLTInterMerger.cxx,v 1.8 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 AliHLTTPCInterMerger.cxx
22 @author Uli Frankenfeld, maintained by Matthias Richter
24 @brief The HLT TPC track segment merger
27 #include "AliHLTTPCLogging.h"
28 #include "AliHLTTPCInterMerger.h"
29 #include "AliHLTTPCTrack.h"
30 #include "AliHLTTPCTrackSegmentData.h"
31 #include "AliHLTTPCTransform.h"
32 #include "AliHLTTPCTrackArray.h"
38 ClassImp(AliHLTTPCInterMerger)
40 AliHLTTPCInterMerger::AliHLTTPCInterMerger()
49 // SetParameter(2,2,.3,.3,.3);
50 SetParameter(1,0.5,0.0005,0.05,0.1);
54 AliHLTTPCInterMerger::~AliHLTTPCInterMerger(){
59 void AliHLTTPCInterMerger::SlowMerge(){
60 Int_t nrow= fRowMax-fRowMin+1;
61 void *ntuple=GetNtuple();
62 AliHLTTPCTrackArray * tracks = GetInTracks(0);
63 const Int_t kNIn =tracks->GetNTracks();
64 AliHLTTPCTrack *tr[2];
66 for(Int_t in=0;in<kNIn;in++)
67 if (tracks->GetCheckedTrack(in)) tracks->GetCheckedTrack(in)->CalculateHelix();
69 Int_t inmin=-1,outmin=-1;
71 for(Int_t out=0;out<kNIn;out++){
72 AliHLTTPCTrack *outertrack=tracks->GetCheckedTrack(out);
73 if(!outertrack) continue;
74 for(Int_t in=0;in<kNIn;in++){
76 AliHLTTPCTrack *innertrack=tracks->GetCheckedTrack(in);
77 if(!innertrack) continue;
78 if(outertrack->GetNHits()+innertrack->GetNHits()>nrow) continue;
80 Double_t diff = TrackDiff(innertrack,outertrack);
82 if(diff>=0&&diff<min){
89 if(inmin>=0&&outmin>=0){
90 AliHLTTPCTrack *outertrack=tracks->GetTrack(outmin);
91 AliHLTTPCTrack *innertrack=tracks->GetTrack(inmin);
95 MultiMerge(tracks,tr,2);
96 outertrack->CalculatePoint(tr[0]->GetLastPointX());
97 innertrack->CalculatePoint(tr[0]->GetLastPointX());
98 PrintDiff(innertrack,outertrack);
99 FillNtuple(ntuple,innertrack,outertrack);
100 tracks->Remove(outmin);
101 tracks->Remove(inmin);
105 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCInterMerger::SlowMerge","Result")
106 <<AliHLTTPCLog::kDec<<"Merged Tracks: "<<tracks->GetNTracks()-kNIn<<ENDLOG;
108 const int namelen=256;
110 snprintf(name,namelen,"ntuple_i_%d.root",fPatch);
111 WriteNtuple(name,ntuple);
114 void AliHLTTPCInterMerger::MMerge(){
115 while(Merge()) {/*empty body*/};
116 GetOutTracks()->AddTracks(GetInTracks(0));
119 Int_t AliHLTTPCInterMerger::Merge(){
120 Int_t nrow= fRowMax-fRowMin+1;
121 Double_t xval =AliHLTTPCTransform::Row2X((fRowMax+fRowMin)/2);
122 AliHLTTPCTrackArray * tracks = GetInTracks(0);
123 const Int_t kNIn =tracks->GetNTracks();
124 AliHLTTPCTrack *tr[2];
125 for(Int_t in=0;in<kNIn;in++){
126 AliHLTTPCTrack *t = tracks->GetCheckedTrack(in);
129 t->CalculatePoint(xval);
132 for(Int_t out=0;out<kNIn;out++){
133 AliHLTTPCTrack *outertrack=tracks->GetCheckedTrack(out);
134 if(!outertrack) continue;
135 for(Int_t in=0;in<kNIn;in++){
136 if(in==out) continue;
137 AliHLTTPCTrack *innertrack=tracks->GetCheckedTrack(in);
138 if(!innertrack) continue;
139 if(outertrack->GetNHits()+innertrack->GetNHits()>nrow) continue;
141 if(IsTrack(innertrack,outertrack)){
144 SortGlobalTracks(tr,2);
146 Double_t r0 = pow(tr[0]->GetLastPointX(),2)+
147 pow(tr[0]->GetLastPointY(),2);
148 Double_t r1 = pow(tr[1]->GetFirstPointX(),2)+
149 pow(tr[1]->GetFirstPointY(),2);
151 MultiMerge(tracks,tr,2);
159 Int_t nmerged = tracks->GetNTracks()-kNIn;
160 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCInterMerger::Merge","Result")
161 <<AliHLTTPCLog::kDec<<"Merged Tracks: "<<nmerged<<ENDLOG;
163 // GetOutTracks()->AddTracks(GetInTracks(0));