1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.4.10.2 2002/07/24 10:09:30 alibrary
21 Revision 1.6 2002/06/12 09:54:35 cblume
22 Update of tracking code provided by Sergei
24 Revision 1.4 2001/05/07 08:08:05 cblume
27 Revision 1.3 2000/12/08 16:07:02 cblume
28 Update of the tracking by Sergei
30 Revision 1.2 2000/10/06 16:49:46 cblume
33 Revision 1.1.2.1 2000/09/22 14:47:52 cblume
38 #include "AliTRDcluster.h"
39 #include "AliTRDgeometry.h"
40 #include "AliTRDrecPoint.h"
42 ClassImp(AliTRDcluster)
45 //_____________________________________________________________________________
46 AliTRDcluster::AliTRDcluster(const AliTRDrecPoint &p):AliCluster()
49 // Constructor from AliTRDrecPoint
52 fDetector = p.GetDetector();
53 fTimeBin = p.GetLocalTimeBin();
55 fTracks[0] = p.GetTrackIndex(0);
56 fTracks[1] = p.GetTrackIndex(1);
57 fTracks[2] = p.GetTrackIndex(2);
63 fSigmaY2 = p.GetSigmaY2();
64 fSigmaZ2 = p.GetSigmaZ2();
71 //_____________________________________________________________________________
72 AliTRDcluster::AliTRDcluster(const AliTRDcluster &c):AliCluster()
78 fTracks[0] = c.GetLabel(0);
79 fTracks[1] = c.GetLabel(1);
80 fTracks[2] = c.GetLabel(2);
84 fSigmaY2 = c.GetSigmaY2();
85 fSigmaZ2 = c.GetSigmaZ2();
87 fDetector = c.GetDetector();
88 fTimeBin = c.GetLocalTimeBin();
93 //_____________________________________________________________________________
94 void AliTRDcluster::AddTrackIndex(Int_t *track)
97 // Adds track index. Currently assumed that track is an array of
98 // size 9, and up to 3 track indexes are stored in fTracks[3].
99 // Indexes are sorted according to:
100 // 1) index of max number of appearances is stored first
101 // 2) if two or more indexes appear equal number of times, the lowest
102 // ones are stored first;
105 const Int_t size = 9;
107 Int_t entries[size][2], i, j, index;
111 for (i=0; i<size; i++) {
116 for (Int_t k=0; k<size; k++) {
118 index_added=kFALSE; j=0;
120 while ( (!index_added) && ( j < size ) ) {
121 if ((entries[j][0]==index) || (entries[j][1]==0)) {
123 entries[j][1]=entries[j][1]+1;
131 // sort by number of appearances and index value
132 Int_t swap=1, tmp0, tmp1;
135 for(i=0; i<(size-1); i++) {
136 if ((entries[i][0] >= 0) && (entries[i+1][0] >= 0)) {
137 if ((entries[i][1] < entries[i+1][1]) ||
138 ((entries[i][1] == entries[i+1][1]) &&
139 (entries[i][0] > entries[i+1][0]))) {
142 entries[i][0]=entries[i+1][0];
143 entries[i][1]=entries[i+1][1];
144 entries[i+1][0]=tmp0;
145 entries[i+1][1]=tmp1;
153 for(i=0; i<3; i++) SetLabel(entries[i][0],i);