1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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14 **************************************************************************/
18 Revision 1.5 2002/10/14 14:57:42 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.3.6.1 2002/07/24 11:07:40 alibrary
24 Revision 1.4 2002/07/24 09:38:28 vicinanz
25 Fixed (ininfluential) bug on TestHit method
27 Revision 1.3 2001/12/19 09:33:32 hristov
30 Revision 1.2 2001/11/22 11:30:30 hristov
33 Revision 1.1 2001/11/22 11:22:51 hristov
34 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
38 ////////////////////////////////////////////////////////////////////////
42 // hitmap enables fast check if the pad was already hit
43 // The index of a AliTOFSDigit is saved in the each hitmap "cell"
44 // (there is an offset +1, because the index can be zero and
45 // zero means empty cell.
46 // In TOF, number of strips varies according plate type, the highest
47 // number is in plate C. For all plates is used this number, so
48 // the size of the hitmap is a little bit greater than necessary, but
49 // it simplifies the access algorithm.
52 // Author: Jiri Chudoba (CERN), based on AliMUONHitMap
54 ////////////////////////////////////////////////////////////////////////
56 #include <Riostream.h>
59 #include "AliTOFHitMap.h"
60 #include "AliTOFSDigit.h"
61 #include "AliTOFConstants.h"
64 #include <TClonesArray.h>
66 ClassImp(AliTOFHitMap)
68 AliTOFHitMap::AliTOFHitMap()
77 ////////////////////////////////////////////////////////////////////////
78 AliTOFHitMap::AliTOFHitMap(TClonesArray *dig)
84 // of course, these constants must not be hardwired
87 fNSector = AliTOFConstants::fgkNSectors;
88 fNplate = AliTOFConstants::fgkNPlates;
89 fNstrip = AliTOFConstants::fgkNStripC;
90 fNpx = AliTOFConstants::fgkNpadX;
91 fNpy = AliTOFConstants::fgkNpadZ;
92 fMaxIndex=fNSector*fNplate*fNstrip*fNpx*fNpy;
93 fHitMap = new Int_t[fMaxIndex];
98 ////////////////////////////////////////////////////////////////////////
99 AliTOFHitMap::AliTOFHitMap(const AliTOFHitMap & hitMap)
102 // Dummy copy constructor
108 ////////////////////////////////////////////////////////////////////////
109 AliTOFHitMap::~AliTOFHitMap()
114 if (fHitMap) delete[] fHitMap;
117 ////////////////////////////////////////////////////////////////////////
118 void AliTOFHitMap::Clear(const char *)
123 memset(fHitMap,0,sizeof(int)*fMaxIndex);
126 ////////////////////////////////////////////////////////////////////////
127 Int_t AliTOFHitMap::CheckedIndex(Int_t *vol) const
130 // Return checked indices for vol
133 (vol[0]-1)*fNplate*fNstrip*fNpx*fNpy+ // sector
134 (vol[1]-1)*fNstrip*fNpx*fNpy+ // plate
135 (vol[2]-1)*fNpx*fNpy+ // strip
136 (vol[3]-1)*fNpy+ // padx
137 (vol[4]-1); // pady (=padz)
139 if (index >= fMaxIndex) {
140 Error("AliTOFHitMap","CheckedIndex - input outside bounds");
147 ////////////////////////////////////////////////////////////////////////
148 void AliTOFHitMap::SetHit(Int_t *vol, Int_t idigit)
151 // Assign digit to pad vol
154 // 0 means empty pad, we need to shift indeces by 1
155 fHitMap[CheckedIndex(vol)]=idigit+1;
158 ////////////////////////////////////////////////////////////////////////
159 void AliTOFHitMap::SetHit(Int_t *vol)
162 // Assign last digit to pad vol
165 // 0 means empty pad, we need to shift indeces by 1
166 fHitMap[CheckedIndex(vol)]=fSDigits->GetLast()+1;
169 ////////////////////////////////////////////////////////////////////////
170 Int_t AliTOFHitMap::GetHitIndex(Int_t *vol) const
173 // Get contents of pad vol
176 // 0 means empty pad, we need to shift indeces by 1
177 return fHitMap[CheckedIndex(vol)]-1;
180 ////////////////////////////////////////////////////////////////////////
181 TObject* AliTOFHitMap::GetHit(Int_t *vol) const
184 // Get pointer to object at vol
185 // return 0 if vol out of bounds
186 Int_t index=GetHitIndex(vol);
187 return (index <0) ? 0 : fSDigits->UncheckedAt(index);
190 ////////////////////////////////////////////////////////////////////////
191 FlagType AliTOFHitMap::TestHit(Int_t *vol) const
194 // Check if hit cell is empty, used or unused
196 Int_t inf=fHitMap[CheckedIndex(vol)];
199 } else if (inf == 0) {
206 ////////////////////////////////////////////////////////////////////////
207 AliTOFHitMap & AliTOFHitMap::operator = (const AliTOFHitMap & rhs)
209 // Dummy assignment operator