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f7336fa3 | 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 | $Log$ | |
dd9a6ee3 | 18 | Revision 1.2 2000/06/08 18:32:58 cblume |
19 | Make code compliant to coding conventions | |
20 | ||
8230f242 | 21 | Revision 1.1 2000/02/28 19:02:07 cblume |
22 | Add new TRD classes | |
23 | ||
f7336fa3 | 24 | */ |
25 | ||
26 | /////////////////////////////////////////////////////////////////////////////// | |
27 | // // | |
28 | // TRD reconstructed point // | |
29 | // // | |
30 | /////////////////////////////////////////////////////////////////////////////// | |
31 | ||
32 | #include "AliTRDgeometry.h" | |
33 | #include "AliTRDrecPoint.h" | |
34 | #include "AliTRD.h" | |
35 | ||
36 | ClassImp(AliTRDrecPoint) | |
37 | ||
38 | //_____________________________________________________________________________ | |
39 | AliTRDrecPoint::AliTRDrecPoint():AliRecPoint() | |
40 | { | |
41 | // | |
42 | // Standard constructor | |
43 | // | |
44 | ||
45 | fDetector = 0; | |
46 | ||
8230f242 | 47 | AliTRD *trd; |
f7336fa3 | 48 | if ((gAlice) && |
8230f242 | 49 | (trd = ((AliTRD*) gAlice->GetDetector("TRD")))) { |
50 | fGeom = trd->GetGeometry(); | |
f7336fa3 | 51 | } |
52 | else { | |
53 | fGeom = NULL; | |
54 | } | |
55 | ||
56 | } | |
57 | ||
8230f242 | 58 | //_____________________________________________________________________________ |
59 | AliTRDrecPoint::~AliTRDrecPoint() | |
60 | { | |
61 | // | |
62 | // AliTRDrecPoint destructor | |
63 | // | |
64 | ||
65 | } | |
66 | ||
f7336fa3 | 67 | //_____________________________________________________________________________ |
68 | void AliTRDrecPoint::AddDigit(Int_t digit) | |
69 | { | |
70 | // | |
71 | // Adds the index of a digit to the digits list | |
72 | // | |
73 | ||
74 | // First resize the list | |
75 | // (no clusters with more than 3 digits for the TRD | |
76 | if ((fMulDigit == 0) && (fMaxDigit >= 5)) { | |
77 | fMaxDigit = 5; | |
78 | delete fDigitsList; | |
79 | fDigitsList = new int[fMaxDigit]; | |
80 | } | |
81 | ||
82 | // Increase the size of the list if necessary | |
83 | if (fMulDigit >= fMaxDigit) { | |
dd9a6ee3 | 84 | fMaxDigit *= 2; |
85 | int *tempo = new (int[fMaxDigit]); | |
f7336fa3 | 86 | Int_t index; |
87 | for (index = 0; index < fMulDigit; index++) | |
88 | tempo[index] = fDigitsList[index]; | |
89 | delete fDigitsList; | |
90 | fDigitsList = tempo; | |
91 | } | |
92 | ||
93 | fDigitsList[fMulDigit++] = digit; | |
94 | ||
95 | } | |
96 | ||
97 | //_____________________________________________________________________________ | |
98 | void AliTRDrecPoint::SetLocalPosition(TVector3 &pos) | |
99 | { | |
100 | // | |
101 | // Sets the position of the point in the local coordinate system | |
102 | // (row,col,time) and calculates the error matrix in the same | |
103 | // system. | |
104 | // | |
105 | ||
8230f242 | 106 | const Float_t kSq12 = 3.464101615; |
f7336fa3 | 107 | |
108 | // Set the position | |
109 | fLocPos = pos; | |
110 | ||
111 | // Set the error matrix | |
112 | // row: pad-size / sqrt(12) | |
113 | // col: not defined yet | |
114 | // time: bin-size / sqrt(12) | |
115 | fLocPosM->operator()(0,0) = ((AliTRDgeometry *) fGeom)->GetRowPadSize() | |
8230f242 | 116 | / kSq12; |
f7336fa3 | 117 | fLocPosM->operator()(1,1) = 0.0; |
118 | fLocPosM->operator()(2,2) = ((AliTRDgeometry *) fGeom)->GetTimeBinSize() | |
8230f242 | 119 | / kSq12; |
f7336fa3 | 120 | |
121 | } |