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(const AliTOFHitMap & /*hitMap*/)
101 // Dummy copy constructor
107 ////////////////////////////////////////////////////////////////////////
108 AliTOFHitMap::~AliTOFHitMap()
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]*fNplate*fNstrip*fNpx*fNpz+ // sector
134 vol[1]*fNstrip*fNpx*fNpz+ // plate
135 vol[2]*fNpx*fNpz+ // strip
139 if (index >= fMaxIndex) {
140 AliError("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