Modifications needed for TOF with holes.
[u/mrichter/AliRoot.git] / TOF / AliTOFHitMap.cxx
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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
39#include "AliTOFHitMap.h"
40#include "AliTOFSDigit.h"
41#include "AliTOFConstants.h"
42
43
44#include <TClonesArray.h>
45
46ClassImp(AliTOFHitMap)
47
48AliTOFHitMap::AliTOFHitMap()
49{
50//
51// Default ctor
52//
53 fHitMap = 0;
54 fSDigits = 0;
55}
56
57////////////////////////////////////////////////////////////////////////
58AliTOFHitMap::AliTOFHitMap(TClonesArray *dig)
59{
60//
61// ctor
62//
63
64// of course, these constants must not be hardwired
65// change later
66
67 fNSector = AliTOFConstants::fgkNSectors;
68 fNplate = AliTOFConstants::fgkNPlates;
69 fNstrip = AliTOFConstants::fgkNStripC;
70 fNpx = AliTOFConstants::fgkNpadX;
da3d3acd 71 fNpz = AliTOFConstants::fgkNpadZ;
72 fMaxIndex=fNSector*fNplate*fNstrip*fNpx*fNpz;
5919c40c 73 fHitMap = new Int_t[fMaxIndex];
74 fSDigits = dig;
75 Clear();
76}
77
78////////////////////////////////////////////////////////////////////////
5c016a7b 79AliTOFHitMap::AliTOFHitMap(const AliTOFHitMap & /*hitMap*/)
80:TObject()
5919c40c 81{
82//
83// Dummy copy constructor
84//
85 ;
86}
87
88
89////////////////////////////////////////////////////////////////////////
90AliTOFHitMap::~AliTOFHitMap()
91{
92//
93// Destructor
94//
95 if (fHitMap) delete[] fHitMap;
96}
97
98////////////////////////////////////////////////////////////////////////
99void AliTOFHitMap::Clear(const char *)
100{
101//
102// Clear hitmap
103//
104 memset(fHitMap,0,sizeof(int)*fMaxIndex);
105}
106
107////////////////////////////////////////////////////////////////////////
108Int_t AliTOFHitMap::CheckedIndex(Int_t *vol) const
109{
110//
111// Return checked indices for vol
112//
113 Int_t index=
da3d3acd 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
5919c40c 119
120 if (index >= fMaxIndex) {
121 Error("AliTOFHitMap","CheckedIndex - input outside bounds");
122 return -1;
123 } else {
124 return index;
125 }
126}
127
128////////////////////////////////////////////////////////////////////////
129void AliTOFHitMap::SetHit(Int_t *vol, Int_t idigit)
130{
131//
132// Assign digit to pad vol
133//
134
135// 0 means empty pad, we need to shift indeces by 1
136 fHitMap[CheckedIndex(vol)]=idigit+1;
137}
138
139////////////////////////////////////////////////////////////////////////
140void AliTOFHitMap::SetHit(Int_t *vol)
141{
142//
143// Assign last digit to pad vol
144//
145
146// 0 means empty pad, we need to shift indeces by 1
147 fHitMap[CheckedIndex(vol)]=fSDigits->GetLast()+1;
148}
149
150////////////////////////////////////////////////////////////////////////
151Int_t AliTOFHitMap::GetHitIndex(Int_t *vol) const
152{
153//
154// Get contents of pad vol
155//
156
157// 0 means empty pad, we need to shift indeces by 1
158 return fHitMap[CheckedIndex(vol)]-1;
159}
160
161////////////////////////////////////////////////////////////////////////
162TObject* AliTOFHitMap::GetHit(Int_t *vol) const
163{
164//
165// Get pointer to object at vol
166// return 0 if vol out of bounds
2f8510c7 167 Int_t index=GetHitIndex(vol);
5919c40c 168 return (index <0) ? 0 : fSDigits->UncheckedAt(index);
169}
170
171////////////////////////////////////////////////////////////////////////
172FlagType AliTOFHitMap::TestHit(Int_t *vol) const
173{
174//
175// Check if hit cell is empty, used or unused
176//
177 Int_t inf=fHitMap[CheckedIndex(vol)];
0085f44e 178 if (inf > 0) {
5919c40c 179 return kUsed;
180 } else if (inf == 0) {
181 return kEmpty;
182 } else {
183 return kUnused;
184 }
185}
186
187////////////////////////////////////////////////////////////////////////
5c016a7b 188AliTOFHitMap & AliTOFHitMap::operator = (const AliTOFHitMap & /*rhs*/)
5919c40c 189{
190// Dummy assignment operator
191 return *this;
192}
193
194
195
196
197