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451f5018 | 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 | **************************************************************************/ | |
852af72e | 15 | /////////////////////////////////////////////////////////////////////////////// |
16 | // This is the base class for ITSU detector signal simulations. Data members // | |
17 | /////////////////////////////////////////////////////////////////////////////// | |
451f5018 | 18 | #include <TRandom.h> |
19 | #include "TSeqCollection.h" | |
20 | #include "AliITSUSimulation.h" | |
21 | #include "AliITSUSDigit.h" | |
852af72e | 22 | #include "AliITSUChip.h" |
29ad4146 | 23 | #include "AliITSUParamList.h" |
a11ef2e4 | 24 | using namespace TMath; |
451f5018 | 25 | |
26 | ClassImp(AliITSUSimulation) | |
27 | ||
28 | //______________________________________________________________________ | |
29 | AliITSUSimulation::AliITSUSimulation() | |
30 | : fSeg(0) | |
31 | ,fCalibDead(0) | |
32 | ,fCalibNoisy(0) | |
33 | ,fSensMap(0) | |
34 | ,fSimuParam(0) | |
c92b1537 | 35 | ,fResponseParam(0) |
852af72e | 36 | ,fChip(0) |
344d4ff3 | 37 | ,fReadOutCycleOffset(0) |
38 | ,fReadOutCycleLength(25e-6) | |
451f5018 | 39 | ,fEvent(0) |
40 | ,fDebug(0) | |
41 | { | |
42 | // Default constructor | |
43 | } | |
44 | //______________________________________________________________________ | |
45 | AliITSUSimulation::AliITSUSimulation(AliITSUSimuParam* sim,AliITSUSensMap* map) | |
46 | :fSeg(0) | |
47 | ,fCalibDead(0) | |
48 | ,fCalibNoisy(0) | |
49 | ,fSensMap(map) | |
50 | ,fSimuParam(sim) | |
c92b1537 | 51 | ,fResponseParam(0) |
852af72e | 52 | ,fChip(0) |
344d4ff3 | 53 | ,fReadOutCycleOffset(0) |
54 | ,fReadOutCycleLength(25e-6) | |
451f5018 | 55 | ,fEvent(0) |
56 | ,fDebug(0) | |
57 | { | |
58 | // Default constructor | |
59 | } | |
60 | ||
61 | //__________________________________________________________________________ | |
62 | AliITSUSimulation::AliITSUSimulation(const AliITSUSimulation &s) | |
63 | :TObject(s) | |
64 | ,fSeg(s.fSeg) | |
65 | ,fCalibDead(s.fCalibDead) | |
66 | ,fCalibNoisy(s.fCalibNoisy) | |
67 | ,fSensMap(s.fSensMap) | |
68 | ,fSimuParam(s.fSimuParam) | |
c92b1537 | 69 | ,fResponseParam(s.fResponseParam) |
852af72e | 70 | ,fChip(s.fChip) |
344d4ff3 | 71 | ,fReadOutCycleOffset(s.fReadOutCycleOffset) |
72 | ,fReadOutCycleLength(s.fReadOutCycleLength) | |
451f5018 | 73 | ,fEvent(s.fEvent) |
74 | ,fDebug(s.fDebug) | |
75 | { | |
76 | // Copy Constructor | |
77 | } | |
78 | ||
79 | //_________________________________________________________________________ | |
80 | AliITSUSimulation& AliITSUSimulation::operator=(const AliITSUSimulation &s) | |
81 | { | |
82 | // Assignment operator | |
83 | if(&s == this) return *this; | |
84 | fSeg = s.fSeg; | |
85 | fCalibDead = s.fCalibDead; | |
86 | fCalibNoisy= s.fCalibNoisy; | |
87 | fSensMap = s.fSensMap; | |
88 | fSimuParam = s.fSimuParam; | |
c92b1537 | 89 | fResponseParam = s.fResponseParam; |
852af72e | 90 | fChip = s.fChip; |
344d4ff3 | 91 | fReadOutCycleOffset = s.fReadOutCycleOffset; |
92 | fReadOutCycleLength = s.fReadOutCycleLength; | |
451f5018 | 93 | fEvent = s.fEvent; |
94 | return *this; | |
95 | } | |
96 | ||
97 | //______________________________________________________________________ | |
852af72e | 98 | void AliITSUSimulation::InitSimulationChip(AliITSUChip* mod, Int_t event, AliITSsegmentation* seg, AliITSUParamList* resp) |
451f5018 | 99 | { |
100 | // This function creates maps to build the list of tracks for each | |
101 | // summable digit. Inputs defined by base class. | |
102 | // | |
852af72e | 103 | SetChip(mod); |
451f5018 | 104 | SetSegmentation(seg); |
c92b1537 | 105 | SetResponseParam(resp); |
451f5018 | 106 | ClearMap(); |
6b847cde | 107 | memset(fCyclesID,0,(1+2*kMaxROCycleAccept)*sizeof(Bool_t)); |
c92b1537 | 108 | // |
c92b1537 | 109 | SetEvent(event); |
110 | ||
451f5018 | 111 | } |
112 | ||
113 | //______________________________________________________________________ | |
852af72e | 114 | Bool_t AliITSUSimulation::AddSDigitsToChip(TSeqCollection *pItemArr,Int_t mask ) |
451f5018 | 115 | { |
852af72e | 116 | // Add Summable digits to chip maps. |
451f5018 | 117 | // Inputs: |
118 | // pItemArr Array of AliITSpListItems (SDigits). | |
119 | // mask Track number off set value | |
120 | // | |
121 | Int_t nItems = pItemArr->GetEntries(); | |
122 | Bool_t sig = kFALSE; | |
123 | // | |
124 | for( Int_t i=0; i<nItems; i++ ) { | |
125 | AliITSUSDigit * pItem = (AliITSUSDigit *)(pItemArr->At( i )); | |
852af72e | 126 | if(pItem->GetChip() != int(fChip->GetIndex()) ) AliFatal(Form("SDigits chip %d != current chip %d: exit", pItem->GetChip(),fChip->GetIndex())); |
451f5018 | 127 | if(pItem->GetSumSignal()>0.0 ) sig = kTRUE; |
128 | AliITSUSDigit* oldItem = (AliITSUSDigit*)fSensMap->GetItem(pItem); | |
129 | if (!oldItem) { | |
130 | oldItem = (AliITSUSDigit*)fSensMap->RegisterItem( new(fSensMap->GetFree()) AliITSUSDigit(*pItem) ); | |
131 | if (mask) oldItem->ShiftIndices(mask); | |
132 | } | |
133 | else oldItem->AddTo(mask, pItem); | |
134 | } | |
135 | return sig; | |
136 | } | |
137 | ||
138 | //______________________________________________________________________ | |
b2679935 | 139 | void AliITSUSimulation::UpdateMapSignal(UInt_t col,UInt_t row,Int_t trk,Int_t ht,Double_t signal, Int_t roCycle) |
451f5018 | 140 | { |
141 | // update map with new hit | |
fbcb7a55 | 142 | // Note: roCycle can be anything between -kMaxROCycleAccept : kMaxROCycleAccept |
6b847cde | 143 | if (Abs(roCycle)>kMaxROCycleAccept) { |
144 | AliError(Form("CycleID %d is outside of allowed +-%d range",roCycle,kMaxROCycleAccept)); | |
145 | return; | |
146 | } | |
fbcb7a55 | 147 | UInt_t ind = fSensMap->GetIndex(col,row,roCycle); |
6b847cde | 148 | AliITSUSDigit* oldItem = (AliITSUSDigit*)fSensMap->GetItem(ind); |
149 | if (!oldItem) { | |
852af72e | 150 | fSensMap->RegisterItem( new(fSensMap->GetFree()) AliITSUSDigit(trk,ht,fChip->GetIndex(),ind,signal,roCycle) ); |
fbcb7a55 | 151 | fCyclesID[roCycle+kMaxROCycleAccept] = kTRUE; |
152 | } | |
451f5018 | 153 | else oldItem->AddSignal(trk,ht,signal); |
120e5202 | 154 | // |
451f5018 | 155 | } |
156 | ||
157 | //______________________________________________________________________ | |
b2679935 | 158 | void AliITSUSimulation::UpdateMapNoise(UInt_t col,UInt_t row,Double_t noise, Int_t roCycle) |
451f5018 | 159 | { |
160 | // update map with new hit | |
6b847cde | 161 | if (Abs(roCycle)>kMaxROCycleAccept) { |
162 | AliError(Form("CycleID %d is outside of allowed +-%d range",roCycle,kMaxROCycleAccept)); | |
163 | return; | |
164 | } | |
b2679935 | 165 | UInt_t ind = fSensMap->GetIndex(col,row,roCycle); |
451f5018 | 166 | AliITSUSDigit* oldItem = (AliITSUSDigit*)fSensMap->GetItem(ind); |
fbcb7a55 | 167 | if (!oldItem) { |
852af72e | 168 | fSensMap->RegisterItem( new(fSensMap->GetFree()) AliITSUSDigit(fChip->GetIndex(),ind,noise,roCycle) ); |
fbcb7a55 | 169 | fCyclesID[roCycle+kMaxROCycleAccept] = kTRUE; |
170 | } | |
451f5018 | 171 | else oldItem->AddNoise(noise); |
172 | } | |
173 | ||
174 | //______________________________________________________________________ | |
175 | Int_t AliITSUSimulation::GenOrderedSample(UInt_t nmax,UInt_t ngen,TArrayI &vals,TArrayI &indx) | |
176 | { | |
177 | // generate random sample [0:nmax] of ngen variables, and fill orreder indices | |
178 | // return actual number of generated values | |
179 | if (vals.GetSize()<(int)ngen) vals.Set(ngen); | |
180 | if (indx.GetSize()<(int)ngen) indx.Set(ngen); | |
181 | int* valA = vals.GetArray(); | |
182 | int* indA = indx.GetArray(); | |
183 | if (ngen>=nmax) { | |
184 | ngen = nmax-1; | |
185 | for (int i=(int)ngen;i--;) {valA[i]=indA[i]=i;} | |
186 | return ngen; | |
187 | } | |
188 | Bool_t rep; | |
189 | for (int i=0;i<(int)ngen;i++) { | |
190 | do { // exclude repetitions | |
191 | rep = kFALSE; | |
192 | valA[i] = gRandom->Rndm()*nmax; | |
193 | for (int j=i;j--;) if (valA[j]==valA[i]) {rep=kTRUE;break;} | |
194 | } while(rep); | |
195 | } | |
a11ef2e4 | 196 | Sort((int)ngen,valA,indA,kFALSE); |
451f5018 | 197 | return ngen; |
198 | } | |
344d4ff3 | 199 | |
200 | //______________________________________________________________________ | |
201 | Double_t AliITSUSimulation::GenerateReadOutCycleOffset() | |
202 | { | |
203 | // Generate randomly the strobe | |
204 | // phase w.r.t to the LHC clock | |
205 | return fReadOutCycleOffset = fReadOutCycleLength*gRandom->Rndm(); | |
206 | // fReadOutCycleOffset = 25e-9*gRandom->Rndm(); // clm: I think this way we shift too much 10-30 us! The global shift should be between the BCs?! | |
207 | // RS: 25 ns is too small number, the staggering will not work. Let's at the moment keep fully random shift (still, no particle from correct | |
208 | // collision will be lost) untill real number is specified | |
209 | // | |
210 | } |