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. *
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 **************************************************************************/
18 ////////////////////////////////////////////////////////////////////////
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.
32 // Author: Jiri Chudoba (CERN), based on AliMUONHitMap
34 ////////////////////////////////////////////////////////////////////////
37 #include "AliTOFHitMap.h"
38 #include "AliTOFGeometry.h"
41 #include <TClonesArray.h>
43 ClassImp(AliTOFHitMap)
45 AliTOFHitMap::AliTOFHitMap():
60 ////////////////////////////////////////////////////////////////////////
61 AliTOFHitMap::AliTOFHitMap(TClonesArray *dig):
75 // of course, these constants must not be hardwired
78 fNSector = AliTOFGeometry::NSectors();
79 fNplate = AliTOFGeometry::NPlates();
80 fNstrip = AliTOFGeometry::NStripC();//fTOFGeometry->NMaxNstrip();
81 fNpx = AliTOFGeometry::NpadX();
82 fNpz = AliTOFGeometry::NpadZ();
83 fMaxIndex=fNSector*fNplate*fNstrip*fNpx*fNpz;
84 fHitMap = new Int_t[fMaxIndex];
88 ////////////////////////////////////////////////////////////////////////
89 AliTOFHitMap::~AliTOFHitMap()
98 ////////////////////////////////////////////////////////////////////////
99 void AliTOFHitMap::Clear(const char *)
104 memset(fHitMap,0,sizeof(int)*fMaxIndex);
107 ////////////////////////////////////////////////////////////////////////
108 Int_t AliTOFHitMap::CheckedIndex(Int_t * const vol) const
111 // Return checked indices for vol
114 vol[0]*fNplate*fNstrip*fNpx*fNpz+ // sector
115 vol[1]*fNstrip*fNpx*fNpz+ // plate
116 vol[2]*fNpx*fNpz+ // strip
120 if (index >= fMaxIndex) {
121 AliError("CheckedIndex - input outside bounds");
128 ////////////////////////////////////////////////////////////////////////
129 void AliTOFHitMap::SetHit(Int_t *vol, Int_t idigit)
132 // Assign digit to pad vol
135 // 0 means empty pad, we need to shift indeces by 1
136 fHitMap[CheckedIndex(vol)]=idigit+1;
139 ////////////////////////////////////////////////////////////////////////
140 void AliTOFHitMap::SetHit(Int_t *vol)
143 // Assign last digit to pad vol
146 // 0 means empty pad, we need to shift indeces by 1
147 fHitMap[CheckedIndex(vol)]=fSDigits->GetLast()+1;
150 ////////////////////////////////////////////////////////////////////////
151 Int_t AliTOFHitMap::GetHitIndex(Int_t *vol) const
154 // Get contents of pad vol
157 // 0 means empty pad, we need to shift indeces by 1
158 return fHitMap[CheckedIndex(vol)]-1;
161 ////////////////////////////////////////////////////////////////////////
162 TObject* AliTOFHitMap::GetHit(Int_t *vol) const
165 // Get pointer to object at vol
166 // return 0 if vol out of bounds
167 Int_t index=GetHitIndex(vol);
168 return (index <0) ? 0 : fSDigits->UncheckedAt(index);
171 ////////////////////////////////////////////////////////////////////////
172 FlagType AliTOFHitMap::TestHit(Int_t *vol) const
175 // Check if hit cell is empty, used or unused
177 Int_t inf=fHitMap[CheckedIndex(vol)];
180 } else if (inf == 0) {