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5919c40c | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
5919c40c | 17 | |
18 | //////////////////////////////////////////////////////////////////////// | |
19 | // | |
20 | // AliTOFHitMap class | |
21 | // | |
22 | // hitmap enables fast check if the pad was already hit | |
23 | // The index of a AliTOFSDigit is saved in the each hitmap "cell" | |
24 | // (there is an offset +1, because the index can be zero and | |
25 | // zero means empty cell. | |
26 | // In TOF, number of strips varies according plate type, the highest | |
27 | // number is in plate C. For all plates is used this number, so | |
28 | // the size of the hitmap is a little bit greater than necessary, but | |
29 | // it simplifies the access algorithm. | |
30 | // | |
31 | // | |
32 | // Author: Jiri Chudoba (CERN), based on AliMUONHitMap | |
33 | // | |
34 | //////////////////////////////////////////////////////////////////////// | |
35 | ||
f8014e68 | 36 | #include <Riostream.h> |
5919c40c | 37 | #include <TMath.h> |
38 | ||
d076c8d5 | 39 | #include "AliLog.h" |
5919c40c | 40 | #include "AliTOFHitMap.h" |
41 | #include "AliTOFSDigit.h" | |
0f4a7374 | 42 | #include "AliTOFGeometry.h" |
5919c40c | 43 | |
44 | ||
45 | #include <TClonesArray.h> | |
46 | ||
47 | ClassImp(AliTOFHitMap) | |
48 | ||
49 | AliTOFHitMap::AliTOFHitMap() | |
50 | { | |
51 | // | |
52 | // Default ctor | |
53 | // | |
54 | fHitMap = 0; | |
55 | fSDigits = 0; | |
56 | } | |
57 | ||
58 | //////////////////////////////////////////////////////////////////////// | |
d3c7bfac | 59 | AliTOFHitMap::AliTOFHitMap(TClonesArray *dig, AliTOFGeometry *tofGeom) |
5919c40c | 60 | { |
61 | // | |
62 | // ctor | |
63 | // | |
64 | ||
65 | // of course, these constants must not be hardwired | |
66 | // change later | |
67 | ||
d3c7bfac | 68 | fTOFGeometry = tofGeom; |
69 | ||
0f4a7374 | 70 | fNSector = AliTOFGeometry::NSectors(); |
71 | fNplate = AliTOFGeometry::NPlates(); | |
d3c7bfac | 72 | fNstrip = fTOFGeometry->NMaxNstrip(); |
0f4a7374 | 73 | fNpx = AliTOFGeometry::NpadX(); |
74 | fNpz = AliTOFGeometry::NpadZ(); | |
da3d3acd | 75 | fMaxIndex=fNSector*fNplate*fNstrip*fNpx*fNpz; |
5919c40c | 76 | fHitMap = new Int_t[fMaxIndex]; |
77 | fSDigits = dig; | |
78 | Clear(); | |
79 | } | |
80 | ||
81 | //////////////////////////////////////////////////////////////////////// | |
5c016a7b | 82 | AliTOFHitMap::AliTOFHitMap(const AliTOFHitMap & /*hitMap*/) |
83 | :TObject() | |
5919c40c | 84 | { |
85 | // | |
86 | // Dummy copy constructor | |
87 | // | |
d3c7bfac | 88 | ; |
5919c40c | 89 | } |
90 | ||
91 | ||
92 | //////////////////////////////////////////////////////////////////////// | |
93 | AliTOFHitMap::~AliTOFHitMap() | |
94 | { | |
95 | // | |
96 | // Destructor | |
97 | // | |
d3c7bfac | 98 | delete[] fHitMap; |
99 | ||
afd804a3 | 100 | fTOFGeometry = 0x0; |
d3c7bfac | 101 | |
5919c40c | 102 | } |
103 | ||
104 | //////////////////////////////////////////////////////////////////////// | |
105 | void AliTOFHitMap::Clear(const char *) | |
106 | { | |
107 | // | |
108 | // Clear hitmap | |
109 | // | |
110 | memset(fHitMap,0,sizeof(int)*fMaxIndex); | |
111 | } | |
112 | ||
113 | //////////////////////////////////////////////////////////////////////// | |
114 | Int_t AliTOFHitMap::CheckedIndex(Int_t *vol) const | |
115 | { | |
116 | // | |
117 | // Return checked indices for vol | |
118 | // | |
119 | Int_t index= | |
d3c7bfac | 120 | vol[0]*fNplate*fNstrip*fNpx*fNpz+ // sector |
121 | vol[1]*fNstrip*fNpx*fNpz+ // plate | |
122 | vol[2]*fNpx*fNpz+ // strip | |
123 | vol[3]*fNpz+ // padx | |
124 | vol[4]; // padz | |
5919c40c | 125 | |
126 | if (index >= fMaxIndex) { | |
d076c8d5 | 127 | AliError("CheckedIndex - input outside bounds"); |
5919c40c | 128 | return -1; |
129 | } else { | |
130 | return index; | |
131 | } | |
132 | } | |
133 | ||
134 | //////////////////////////////////////////////////////////////////////// | |
135 | void AliTOFHitMap::SetHit(Int_t *vol, Int_t idigit) | |
136 | { | |
137 | // | |
138 | // Assign digit to pad vol | |
139 | // | |
140 | ||
141 | // 0 means empty pad, we need to shift indeces by 1 | |
142 | fHitMap[CheckedIndex(vol)]=idigit+1; | |
143 | } | |
144 | ||
145 | //////////////////////////////////////////////////////////////////////// | |
146 | void AliTOFHitMap::SetHit(Int_t *vol) | |
147 | { | |
148 | // | |
149 | // Assign last digit to pad vol | |
150 | // | |
151 | ||
152 | // 0 means empty pad, we need to shift indeces by 1 | |
153 | fHitMap[CheckedIndex(vol)]=fSDigits->GetLast()+1; | |
154 | } | |
155 | ||
156 | //////////////////////////////////////////////////////////////////////// | |
157 | Int_t AliTOFHitMap::GetHitIndex(Int_t *vol) const | |
158 | { | |
159 | // | |
160 | // Get contents of pad vol | |
161 | // | |
162 | ||
163 | // 0 means empty pad, we need to shift indeces by 1 | |
164 | return fHitMap[CheckedIndex(vol)]-1; | |
165 | } | |
166 | ||
167 | //////////////////////////////////////////////////////////////////////// | |
168 | TObject* AliTOFHitMap::GetHit(Int_t *vol) const | |
169 | { | |
170 | // | |
171 | // Get pointer to object at vol | |
172 | // return 0 if vol out of bounds | |
2f8510c7 | 173 | Int_t index=GetHitIndex(vol); |
5919c40c | 174 | return (index <0) ? 0 : fSDigits->UncheckedAt(index); |
175 | } | |
176 | ||
177 | //////////////////////////////////////////////////////////////////////// | |
178 | FlagType AliTOFHitMap::TestHit(Int_t *vol) const | |
179 | { | |
180 | // | |
181 | // Check if hit cell is empty, used or unused | |
182 | // | |
183 | Int_t inf=fHitMap[CheckedIndex(vol)]; | |
0085f44e | 184 | if (inf > 0) { |
5919c40c | 185 | return kUsed; |
186 | } else if (inf == 0) { | |
187 | return kEmpty; | |
188 | } else { | |
189 | return kUnused; | |
190 | } | |
191 | } | |
192 | ||
193 | //////////////////////////////////////////////////////////////////////// | |
5c016a7b | 194 | AliTOFHitMap & AliTOFHitMap::operator = (const AliTOFHitMap & /*rhs*/) |
5919c40c | 195 | { |
196 | // Dummy assignment operator | |
197 | return *this; | |
198 | } |