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a9e2aefa | 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 | $Log$ | |
3831f268 | 18 | Revision 1.6 2001/02/05 14:49:29 hristov |
19 | Compare() declared const (R.Brun) | |
20 | ||
2a941f4e | 21 | Revision 1.5 2000/07/20 12:45:27 gosset |
22 | New "EventReconstructor..." structure, | |
23 | hopefully more adapted to tree/streamer. | |
24 | "AliMUONEventReconstructor::RemoveDoubleTracks" | |
25 | to keep only one track among similar ones. | |
26 | ||
8429a5e4 | 27 | Revision 1.4 2000/07/18 16:04:06 gosset |
28 | AliMUONEventReconstructor package: | |
29 | * a few minor modifications and more comments | |
30 | * a few corrections | |
31 | * right sign for Z of raw clusters | |
32 | * right loop over chambers inside station | |
33 | * symmetrized covariance matrix for measurements (TrackChi2MCS) | |
34 | * right sign of charge in extrapolation (ExtrapToZ) | |
35 | * right zEndAbsorber for Branson correction below 3 degrees | |
36 | * use of TVirtualFitter instead of TMinuit for AliMUONTrack::Fit | |
37 | * no parameter for AliMUONTrack::Fit() but more fit parameters in Track object | |
38 | ||
956019b6 | 39 | Revision 1.3 2000/06/25 13:06:39 hristov |
40 | Inline functions moved from *.cxx to *.h files instead of forward declarations | |
41 | ||
9b03f36b | 42 | Revision 1.2 2000/06/15 07:58:49 morsch |
43 | Code from MUON-dev joined | |
44 | ||
a9e2aefa | 45 | Revision 1.1.2.3 2000/06/12 10:11:45 morsch |
46 | Dummy copy constructor and assignment operator added | |
47 | ||
48 | Revision 1.1.2.2 2000/06/09 12:58:05 gosset | |
49 | Removed comment beginnings in Log sections of .cxx files | |
50 | Suppressed most violations of coding rules | |
51 | ||
52 | Revision 1.1.2.1 2000/06/07 14:44:53 gosset | |
53 | Addition of files for track reconstruction in C++ | |
54 | */ | |
55 | ||
3831f268 | 56 | /////////////////////////////////////////////////////// |
a9e2aefa | 57 | // |
3831f268 | 58 | // Reconstructed track hit |
59 | // in | |
60 | // ALICE | |
61 | // dimuon | |
62 | // spectrometer | |
63 | // | |
64 | /////////////////////////////////////////////////////// | |
a9e2aefa | 65 | |
66 | #include "AliMUONHitForRec.h" | |
3831f268 | 67 | #include "AliMUONTrackHit.h" |
a9e2aefa | 68 | |
69 | ClassImp(AliMUONTrackHit) // Class implementation in ROOT context | |
70 | ||
71 | //__________________________________________________________________________ | |
72 | AliMUONTrackHit::AliMUONTrackHit(AliMUONHitForRec* Hit) | |
73 | { | |
74 | // Constructor from the HitForRec pointed to by "Hit" | |
75 | fHitForRecPtr = Hit; // pointer to HitForRec | |
76 | // links from/to HitForRec | |
77 | if (Hit->GetNTrackHits() == 0) { | |
78 | fPrevTrackHitWithSameHitForRec = NULL; | |
79 | Hit->SetFirstTrackHitPtr(this); | |
80 | } | |
81 | else { | |
82 | fPrevTrackHitWithSameHitForRec = Hit->GetLastTrackHitPtr(); | |
83 | fNextTrackHitWithSameHitForRec = NULL; | |
84 | } | |
85 | Hit->SetLastTrackHitPtr(this); | |
86 | fNextTrackHitWithSameHitForRec = NULL; | |
87 | Hit->SetNTrackHits(Hit->GetNTrackHits() + 1); | |
88 | } | |
89 | ||
956019b6 | 90 | //__________________________________________________________________________ |
a9e2aefa | 91 | AliMUONTrackHit::AliMUONTrackHit (const AliMUONTrackHit& MUONTrackHit) |
92 | { | |
93 | // Dummy copy constructor | |
94 | } | |
95 | ||
956019b6 | 96 | //__________________________________________________________________________ |
a9e2aefa | 97 | AliMUONTrackHit & AliMUONTrackHit::operator=(const AliMUONTrackHit& MUONTrackHit) |
98 | { | |
99 | // Dummy assignment operator | |
100 | return *this; | |
101 | } | |
102 | ||
a9e2aefa | 103 | |
956019b6 | 104 | //__________________________________________________________________________ |
105 | AliMUONTrackHit::~AliMUONTrackHit() | |
106 | { | |
107 | // Destructor | |
8429a5e4 | 108 | // Update links between HitForRec's and TrackHit's |
109 | // connected to the current TrackHit being removed. | |
110 | AliMUONHitForRec *hit = fHitForRecPtr; // pointer to HitForRec | |
111 | // remove current TrackHit in HitForRec links | |
112 | if (this == hit->GetFirstTrackHitPtr()) | |
113 | hit->SetFirstTrackHitPtr(fNextTrackHitWithSameHitForRec); // if first | |
114 | if (this == hit->GetLastTrackHitPtr()) | |
115 | hit->SetLastTrackHitPtr(fPrevTrackHitWithSameHitForRec); // if last | |
116 | hit->SetNTrackHits(hit->GetNTrackHits() - 1); // decrement NTrackHits of hit | |
117 | // update link to next TrackHit of previous TrackHit | |
118 | if (fPrevTrackHitWithSameHitForRec != NULL) | |
119 | fPrevTrackHitWithSameHitForRec-> | |
120 | SetNextTrackHitWithSameHitForRec(fNextTrackHitWithSameHitForRec); | |
121 | // update link to previous TrackHit of next TrackHit | |
122 | if (fNextTrackHitWithSameHitForRec) | |
123 | fNextTrackHitWithSameHitForRec-> | |
124 | SetPrevTrackHitWithSameHitForRec(fPrevTrackHitWithSameHitForRec); | |
956019b6 | 125 | // to be checked thoroughly !!!! |
126 | // with Root counter of AliMUONTrackHit objects, | |
127 | // with loop over all these links after the update | |
128 | } | |
129 | ||
a9e2aefa | 130 | //__________________________________________________________________________ |
2a941f4e | 131 | Int_t AliMUONTrackHit::Compare(const TObject* TrackHit) const |
a9e2aefa | 132 | { |
133 | // "Compare" function to sort with increasing Z. | |
134 | // Returns -1 (0, +1) if Z of current TrackHit | |
135 | // is smaller than (equal to, larger than) Z of TrackHit | |
136 | if (fHitForRecPtr->GetZ() < | |
137 | ((AliMUONTrackHit*)TrackHit)->fHitForRecPtr->GetZ()) return(-1); | |
138 | else if (fHitForRecPtr->GetZ() == | |
139 | ((AliMUONTrackHit*)TrackHit)->fHitForRecPtr->GetZ()) return( 0); | |
140 | else return(+1); | |
141 | } |