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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> | |
23 | ||
24 | #include "AliTrackFitter.h" | |
25 | #include "AliTrackPointArray.h" | |
26 | ||
27 | ClassImp(AliTrackFitter) | |
28 | ||
29 | //_____________________________________________________________________________ | |
30 | AliTrackFitter::AliTrackFitter() | |
31 | { | |
32 | // default constructor | |
33 | // | |
34 | for (Int_t i=0;i<6;i++) fParams[i] = 0; | |
35 | fCov = 0; | |
36 | fPoints = 0; | |
46ae650f | 37 | fPVolId = fPTrack = 0; |
38 | fChi2 = 0; | |
39 | fNdf = 0; | |
98937d93 | 40 | fIsOwner = kFALSE; |
41 | } | |
42 | ||
43 | //_____________________________________________________________________________ | |
44 | AliTrackFitter::AliTrackFitter(AliTrackPointArray *array, Bool_t owner) | |
45 | { | |
46 | // constructor from space points array | |
47 | // | |
48 | for (Int_t i=0;i<6;i++) fParams[i] = 0; | |
49 | fCov = new TMatrixDSym(6); | |
46ae650f | 50 | fPVolId = fPTrack = 0; |
51 | fChi2 = 0; | |
52 | fNdf = 0; | |
98937d93 | 53 | fIsOwner = kFALSE; |
54 | SetTrackPointArray(array,owner); | |
55 | } | |
56 | ||
57 | //_____________________________________________________________________________ | |
58 | AliTrackFitter::AliTrackFitter(const AliTrackFitter &fitter): | |
59 | TObject(fitter) | |
60 | { | |
61 | // Copy constructor | |
62 | // | |
46ae650f | 63 | SetTrackPointArray(fitter.fPoints,fitter.fIsOwner); |
98937d93 | 64 | for (Int_t i=0;i<6;i++) fParams[i] = fitter.fParams[i]; |
65 | fCov = new TMatrixDSym(*fitter.fCov); | |
46ae650f | 66 | fChi2 = fitter.fChi2; |
67 | fNdf = fitter.fNdf; | |
98937d93 | 68 | fIsOwner = kFALSE; |
98937d93 | 69 | } |
70 | ||
71 | //_____________________________________________________________________________ | |
72 | AliTrackFitter &AliTrackFitter::operator =(const AliTrackFitter& fitter) | |
73 | { | |
74 | // assignment operator | |
75 | // | |
76 | if(this==&fitter) return *this; | |
77 | ||
46ae650f | 78 | SetTrackPointArray(fitter.fPoints); |
98937d93 | 79 | for (Int_t i=0;i<6;i++) fParams[i] = fitter.fParams[i]; |
80 | fCov = new TMatrixDSym(*fitter.fCov); | |
46ae650f | 81 | fChi2 = fitter.fChi2; |
82 | fNdf = fitter.fNdf; | |
98937d93 | 83 | fIsOwner = kFALSE; |
98937d93 | 84 | |
85 | return *this; | |
86 | } | |
87 | ||
88 | //_____________________________________________________________________________ | |
89 | AliTrackFitter::~AliTrackFitter() | |
90 | { | |
91 | if (fIsOwner) | |
92 | delete fPoints; | |
93 | delete fCov; | |
94 | } | |
95 | ||
96 | //_____________________________________________________________________________ | |
97 | void AliTrackFitter::Reset() | |
98 | { | |
99 | for (Int_t i=0;i<6;i++) fParams[i] = 0; | |
100 | delete fCov; | |
101 | fCov = new TMatrixDSym(6); | |
46ae650f | 102 | fPVolId = fPTrack = 0; |
103 | fChi2 = 0; | |
104 | fNdf = 0; | |
98937d93 | 105 | } |
106 | ||
107 | void AliTrackFitter::SetTrackPointArray(AliTrackPointArray *array, Bool_t owner) | |
108 | { | |
109 | // Load space points from array | |
110 | // By default we don't copy them but | |
111 | // just put the pointers to them | |
112 | Reset(); | |
113 | ||
114 | if (fIsOwner) delete fPoints; | |
115 | ||
116 | if (owner) { | |
117 | fPoints = new AliTrackPointArray(*array); | |
118 | fIsOwner = kTRUE; | |
119 | } | |
120 | else { | |
121 | fPoints = array; | |
122 | fIsOwner = kFALSE; | |
123 | } | |
124 | } |