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