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98937d93 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | //----------------------------------------------------------------- | |
17 | // Implementation of the base class for fast track fitters | |
18 | // | |
19 | // | |
20 | //----------------------------------------------------------------- | |
21 | ||
22 | #include <TMatrixDSym.h> | |
cc345ce3 | 23 | #include <TArrayI.h> |
98937d93 | 24 | |
25 | #include "AliTrackFitter.h" | |
26 | #include "AliTrackPointArray.h" | |
33bebad6 | 27 | #include "AliLog.h" |
98937d93 | 28 | |
29 | ClassImp(AliTrackFitter) | |
30 | ||
31 | //_____________________________________________________________________________ | |
75e3794b | 32 | AliTrackFitter::AliTrackFitter() : |
33 | TObject(), | |
34 | fCov(0), | |
35 | fPoints(0), | |
36 | fPVolId(0), | |
37 | fPTrack(0), | |
38 | fChi2(0), | |
39 | fNdf(0), | |
40 | fMinNPoints(0), | |
41 | fIsOwner(kFALSE) | |
98937d93 | 42 | { |
43 | // default constructor | |
44 | // | |
45 | for (Int_t i=0;i<6;i++) fParams[i] = 0; | |
98937d93 | 46 | } |
47 | ||
48 | //_____________________________________________________________________________ | |
75e3794b | 49 | AliTrackFitter::AliTrackFitter(AliTrackPointArray *array, Bool_t owner) : |
50 | TObject(), | |
51 | fCov(new TMatrixDSym(6)), | |
52 | fPoints(0), | |
53 | fPVolId(0), | |
54 | fPTrack(0), | |
55 | fChi2(0), | |
56 | fNdf(0), | |
57 | fMinNPoints(0), | |
58 | fIsOwner(kFALSE) | |
59 | ||
98937d93 | 60 | { |
61 | // constructor from space points array | |
62 | // | |
63 | for (Int_t i=0;i<6;i++) fParams[i] = 0; | |
98937d93 | 64 | SetTrackPointArray(array,owner); |
65 | } | |
66 | ||
67 | //_____________________________________________________________________________ | |
68 | AliTrackFitter::AliTrackFitter(const AliTrackFitter &fitter): | |
75e3794b | 69 | TObject(fitter), |
70 | fCov(new TMatrixDSym(*fitter.fCov)), | |
71 | fPoints(0), | |
72 | fPVolId(0), | |
73 | fPTrack(0), | |
74 | fChi2(fitter.fChi2), | |
75 | fNdf(fitter.fNdf), | |
76 | fMinNPoints(fitter.fMinNPoints), | |
77 | fIsOwner(kFALSE) | |
98937d93 | 78 | { |
79 | // Copy constructor | |
80 | // | |
46ae650f | 81 | SetTrackPointArray(fitter.fPoints,fitter.fIsOwner); |
98937d93 | 82 | for (Int_t i=0;i<6;i++) fParams[i] = fitter.fParams[i]; |
98937d93 | 83 | } |
84 | ||
85 | //_____________________________________________________________________________ | |
86 | AliTrackFitter &AliTrackFitter::operator =(const AliTrackFitter& fitter) | |
87 | { | |
88 | // assignment operator | |
89 | // | |
90 | if(this==&fitter) return *this; | |
91 | ||
46ae650f | 92 | SetTrackPointArray(fitter.fPoints); |
98937d93 | 93 | for (Int_t i=0;i<6;i++) fParams[i] = fitter.fParams[i]; |
94 | fCov = new TMatrixDSym(*fitter.fCov); | |
46ae650f | 95 | fChi2 = fitter.fChi2; |
96 | fNdf = fitter.fNdf; | |
cc345ce3 | 97 | fMinNPoints = fitter.fMinNPoints; |
98937d93 | 98 | fIsOwner = kFALSE; |
98937d93 | 99 | |
100 | return *this; | |
101 | } | |
102 | ||
103 | //_____________________________________________________________________________ | |
104 | AliTrackFitter::~AliTrackFitter() | |
105 | { | |
106 | if (fIsOwner) | |
107 | delete fPoints; | |
108 | delete fCov; | |
109 | } | |
110 | ||
111 | //_____________________________________________________________________________ | |
112 | void AliTrackFitter::Reset() | |
113 | { | |
114 | for (Int_t i=0;i<6;i++) fParams[i] = 0; | |
115 | delete fCov; | |
116 | fCov = new TMatrixDSym(6); | |
46ae650f | 117 | fPVolId = fPTrack = 0; |
118 | fChi2 = 0; | |
119 | fNdf = 0; | |
98937d93 | 120 | } |
121 | ||
122 | void AliTrackFitter::SetTrackPointArray(AliTrackPointArray *array, Bool_t owner) | |
123 | { | |
124 | // Load space points from array | |
125 | // By default we don't copy them but | |
126 | // just put the pointers to them | |
33bebad6 | 127 | if (!array) { |
128 | AliWarning("Invalid pointer to the space-points array !"); | |
129 | if (fIsOwner) delete fPoints; | |
130 | fPoints = NULL; | |
131 | return; | |
132 | } | |
7b1ba5da | 133 | |
98937d93 | 134 | Reset(); |
135 | ||
136 | if (fIsOwner) delete fPoints; | |
137 | ||
138 | if (owner) { | |
139 | fPoints = new AliTrackPointArray(*array); | |
140 | fIsOwner = kTRUE; | |
141 | } | |
142 | else { | |
143 | fPoints = array; | |
144 | fIsOwner = kFALSE; | |
145 | } | |
146 | } | |
cc345ce3 | 147 | |
148 | Bool_t AliTrackFitter::FindVolId(const TArrayI *array, UShort_t volid) const | |
149 | { | |
150 | // The method is used to check whenever | |
151 | // the volume id (volid) is contained in | |
152 | // a array of integers | |
153 | Int_t nVolIds = array->GetSize(); | |
154 | if (nVolIds == 0) return kFALSE; | |
155 | ||
156 | Bool_t found = kFALSE; | |
157 | for (Int_t iVolId = 0; iVolId < nVolIds; iVolId++) { | |
158 | if ((*array)[iVolId] == volid) { | |
159 | found = kTRUE; | |
160 | break; | |
161 | } | |
162 | } | |
163 | ||
164 | return found; | |
165 | } |