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52c19022 | 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 | /* $Id: AliTRDtrackletWord.cxx 28397 2008-09-02 09:33:00Z cblume $ */ | |
17 | ||
18 | //////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // A tracklet word as from FEE // | |
21 | // // | |
22 | // Author: J. Klein (Jochen.Klein@cern.ch) // | |
23 | // // | |
24 | //////////////////////////////////////////////////////////////////////////// | |
25 | ||
26 | #include "AliTRDtrackletWord.h" | |
85c32c86 | 27 | #include "AliTRDgeometry.h" |
f061fb9d | 28 | #include "AliTRDpadPlane.h" |
52c19022 | 29 | #include "AliLog.h" |
30 | ||
31 | ClassImp(AliTRDtrackletWord) | |
32 | ||
6170d369 | 33 | AliTRDgeometry* AliTRDtrackletWord::fgGeo = 0x0; |
85c32c86 | 34 | |
52c19022 | 35 | AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord) : |
36 | AliTRDtrackletBase(), | |
37 | fHCId(-1), | |
38 | fTrackletWord(trackletWord) | |
5f006bd7 | 39 | { |
6170d369 | 40 | if (!fgGeo) |
41 | fgGeo = new AliTRDgeometry; | |
52c19022 | 42 | } |
43 | ||
44 | AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord, Int_t hcid) : | |
45 | AliTRDtrackletBase(), | |
46 | fHCId(hcid), | |
47 | fTrackletWord(trackletWord) | |
5f006bd7 | 48 | { |
6170d369 | 49 | if (!fgGeo) |
50 | fgGeo = new AliTRDgeometry; | |
52c19022 | 51 | } |
52 | ||
53 | AliTRDtrackletWord::AliTRDtrackletWord(const AliTRDtrackletWord &rhs) : | |
54 | AliTRDtrackletBase(rhs), | |
55 | fHCId(rhs.fHCId), | |
56 | fTrackletWord(rhs.fTrackletWord) | |
57 | { | |
58 | ||
6170d369 | 59 | if (!fgGeo) |
60 | fgGeo = new AliTRDgeometry; | |
52c19022 | 61 | } |
62 | ||
5f006bd7 | 63 | AliTRDtrackletWord::~AliTRDtrackletWord() |
52c19022 | 64 | { |
65 | ||
66 | } | |
67 | ||
68 | Int_t AliTRDtrackletWord::GetYbin() const { | |
69 | // returns (signed) value of Y | |
70 | if (fTrackletWord & 0x1000) { | |
71 | return -((~(fTrackletWord-1)) & 0x1fff); | |
72 | } | |
73 | else { | |
74 | return (fTrackletWord & 0x1fff); | |
75 | } | |
76 | } | |
77 | ||
5f006bd7 | 78 | Int_t AliTRDtrackletWord::GetdY() const |
52c19022 | 79 | { |
80 | // returns (signed) value of the deflection length | |
81 | if (fTrackletWord & (1 << 19)) { | |
82 | return -((~((fTrackletWord >> 13) - 1)) & 0x7f); | |
83 | } | |
84 | else { | |
85 | return ((fTrackletWord >> 13) & 0x7f); | |
86 | } | |
87 | } | |
f061fb9d | 88 | |
89 | Int_t AliTRDtrackletWord::GetROB() const | |
90 | { | |
91 | return 2 * (GetZbin() / 4) + (GetY() > 0 ? 1 : 0); | |
92 | } | |
93 | ||
94 | Int_t AliTRDtrackletWord::GetMCM() const | |
95 | { | |
96 | AliTRDpadPlane *pp = fgGeo->GetPadPlane(GetDetector()); | |
97 | return (((Int_t) ((GetY()) / pp->GetWidthIPad()) + 72) / 18) % 4 | |
98 | + 4 * (GetZbin() % 4); | |
99 | } | |
100 |