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 ////////////////////////////////////////////////////////////////////////
36 #include <Riostream.h>
39 #include "AliTOFHitMap.h"
40 #include "AliTOFSDigit.h"
41 #include "AliTOFGeometry.h"
44 #include <TClonesArray.h>
46 ClassImp(AliTOFHitMap)
48 AliTOFHitMap::AliTOFHitMap()
57 ////////////////////////////////////////////////////////////////////////
58 AliTOFHitMap::AliTOFHitMap(TClonesArray *dig)
64 // of course, these constants must not be hardwired
67 fNSector = AliTOFGeometry::NSectors();
68 fNplate = AliTOFGeometry::NPlates();
69 fNstrip = AliTOFGeometry::NStripC();
70 fNpx = AliTOFGeometry::NpadX();
71 fNpz = AliTOFGeometry::NpadZ();
72 fMaxIndex=fNSector*fNplate*fNstrip*fNpx*fNpz;
73 fHitMap = new Int_t[fMaxIndex];
78 ////////////////////////////////////////////////////////////////////////
79 AliTOFHitMap::AliTOFHitMap(const AliTOFHitMap & /*hitMap*/)
83 // Dummy copy constructor
89 ////////////////////////////////////////////////////////////////////////
90 AliTOFHitMap::~AliTOFHitMap()
98 ////////////////////////////////////////////////////////////////////////
99 void AliTOFHitMap::Clear(const char *)
104 memset(fHitMap,0,sizeof(int)*fMaxIndex);
107 ////////////////////////////////////////////////////////////////////////
108 Int_t AliTOFHitMap::CheckedIndex(Int_t *vol) const
111 // Return checked indices for vol
114 (vol[0]/*-1*/)*fNplate*fNstrip*fNpx*fNpz+ // sector
115 (vol[1]/*-1*/)*fNstrip*fNpx*fNpz+ // plate
116 (vol[2]/*-1*/)*fNpx*fNpz+ // strip
117 (vol[3]/*-1*/)*fNpz+ // padx
118 (vol[4]/*-1*/); // padz
120 if (index >= fMaxIndex) {
121 Error("AliTOFHitMap","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) {
187 ////////////////////////////////////////////////////////////////////////
188 AliTOFHitMap & AliTOFHitMap::operator = (const AliTOFHitMap & /*rhs*/)
190 // Dummy assignment operator