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()
45 // SetParameter(2,2,.3,.3,.3);
46 SetParameter(1,0.5,0.0005,0.05,0.1);
47 fRowMax = fRowMin = 0;
51 AliHLTTPCInterMerger::~AliHLTTPCInterMerger(){
56 void AliHLTTPCInterMerger::SlowMerge(){
57 Int_t nrow= fRowMax-fRowMin+1;
58 void *ntuple=GetNtuple();
59 AliHLTTPCTrackArray * tracks = GetInTracks(0);
60 const Int_t kNIn =tracks->GetNTracks();
61 AliHLTTPCTrack *tr[2];
63 for(Int_t in=0;in<kNIn;in++)
64 tracks->GetCheckedTrack(in)->CalculateHelix();
66 Int_t inmin=-1,outmin=-1;
68 for(Int_t out=0;out<kNIn;out++){
69 AliHLTTPCTrack *outertrack=tracks->GetCheckedTrack(out);
70 if(!outertrack) continue;
71 for(Int_t in=0;in<kNIn;in++){
73 AliHLTTPCTrack *innertrack=tracks->GetCheckedTrack(in);
74 if(!innertrack) continue;
75 if(outertrack->GetNHits()+innertrack->GetNHits()>nrow) continue;
77 Double_t diff = TrackDiff(innertrack,outertrack);
79 if(diff>=0&&diff<min){
86 if(inmin>=0&&outmin>=0){
87 AliHLTTPCTrack *outertrack=tracks->GetTrack(outmin);
88 AliHLTTPCTrack *innertrack=tracks->GetTrack(inmin);
92 MultiMerge(tracks,tr,2);
93 outertrack->CalculatePoint(tr[0]->GetLastPointX());
94 innertrack->CalculatePoint(tr[0]->GetLastPointX());
95 PrintDiff(innertrack,outertrack);
96 FillNtuple(ntuple,innertrack,outertrack);
97 tracks->Remove(outmin);
98 tracks->Remove(inmin);
102 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCInterMerger::SlowMerge","Result")
103 <<AliHLTTPCLog::kDec<<"Merged Tracks: "<<tracks->GetNTracks()-kNIn<<ENDLOG;
106 sprintf(name,"ntuple_i_%d.root",fPatch);
107 WriteNtuple(name,ntuple);
110 void AliHLTTPCInterMerger::MMerge(){
112 GetOutTracks()->AddTracks(GetInTracks(0));
115 Int_t AliHLTTPCInterMerger::Merge(){
116 Int_t nrow= fRowMax-fRowMin+1;
117 Double_t xval =AliHLTTPCTransform::Row2X((fRowMax+fRowMin)/2);
118 AliHLTTPCTrackArray * tracks = GetInTracks(0);
119 const Int_t kNIn =tracks->GetNTracks();
120 AliHLTTPCTrack *tr[2];
121 for(Int_t in=0;in<kNIn;in++){
122 AliHLTTPCTrack *t = tracks->GetCheckedTrack(in);
125 t->CalculatePoint(xval);
128 for(Int_t out=0;out<kNIn;out++){
129 AliHLTTPCTrack *outertrack=tracks->GetCheckedTrack(out);
130 if(!outertrack) continue;
131 for(Int_t in=0;in<kNIn;in++){
132 if(in==out) continue;
133 AliHLTTPCTrack *innertrack=tracks->GetCheckedTrack(in);
134 if(!innertrack) continue;
135 if(outertrack->GetNHits()+innertrack->GetNHits()>nrow) continue;
137 if(IsTrack(innertrack,outertrack)){
140 SortGlobalTracks(tr,2);
142 Double_t r0 = pow(tr[0]->GetLastPointX(),2)+
143 pow(tr[0]->GetLastPointY(),2);
144 Double_t r1 = pow(tr[1]->GetFirstPointX(),2)+
145 pow(tr[1]->GetFirstPointY(),2);
147 MultiMerge(tracks,tr,2);
155 Int_t nmerged = tracks->GetNTracks()-kNIn;
156 LOG(AliHLTTPCLog::kInformational,"AliHLTTPCInterMerger::Merge","Result")
157 <<AliHLTTPCLog::kDec<<"Merged Tracks: "<<nmerged<<ENDLOG;
159 // GetOutTracks()->AddTracks(GetInTracks(0));