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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 | **************************************************************************/ | |
15 | ////////////////////////////////////////////////////////////////////////////// | |
16 | // This is the base class for ITS detector signal simulations. Data members // | |
17 | // include are a pointer to the AliITSDetTypeSim clas in order to access // | |
18 | // segmentation and response objects // | |
19 | // classes. See the detector specific implementations for the propper code. // | |
20 | ////////////////////////////////////////////////////////////////////////////// | |
21 | #include <TRandom.h> | |
22 | #include "TSeqCollection.h" | |
23 | #include "AliITSUSimulation.h" | |
24 | #include "AliITSUSDigit.h" | |
c92b1537 | 25 | #include "AliITSUModule.h" |
29ad4146 | 26 | #include "AliITSUParamList.h" |
a11ef2e4 | 27 | using namespace TMath; |
451f5018 | 28 | |
29 | ClassImp(AliITSUSimulation) | |
30 | ||
31 | //______________________________________________________________________ | |
32 | AliITSUSimulation::AliITSUSimulation() | |
33 | : fSeg(0) | |
34 | ,fCalibDead(0) | |
35 | ,fCalibNoisy(0) | |
36 | ,fSensMap(0) | |
37 | ,fSimuParam(0) | |
c92b1537 | 38 | ,fResponseParam(0) |
451f5018 | 39 | ,fModule(0) |
344d4ff3 | 40 | ,fReadOutCycleOffset(0) |
41 | ,fReadOutCycleLength(25e-6) | |
451f5018 | 42 | ,fEvent(0) |
43 | ,fDebug(0) | |
44 | { | |
45 | // Default constructor | |
46 | } | |
47 | //______________________________________________________________________ | |
48 | AliITSUSimulation::AliITSUSimulation(AliITSUSimuParam* sim,AliITSUSensMap* map) | |
49 | :fSeg(0) | |
50 | ,fCalibDead(0) | |
51 | ,fCalibNoisy(0) | |
52 | ,fSensMap(map) | |
53 | ,fSimuParam(sim) | |
c92b1537 | 54 | ,fResponseParam(0) |
451f5018 | 55 | ,fModule(0) |
344d4ff3 | 56 | ,fReadOutCycleOffset(0) |
57 | ,fReadOutCycleLength(25e-6) | |
451f5018 | 58 | ,fEvent(0) |
59 | ,fDebug(0) | |
60 | { | |
61 | // Default constructor | |
62 | } | |
63 | ||
64 | //__________________________________________________________________________ | |
65 | AliITSUSimulation::AliITSUSimulation(const AliITSUSimulation &s) | |
66 | :TObject(s) | |
67 | ,fSeg(s.fSeg) | |
68 | ,fCalibDead(s.fCalibDead) | |
69 | ,fCalibNoisy(s.fCalibNoisy) | |
70 | ,fSensMap(s.fSensMap) | |
71 | ,fSimuParam(s.fSimuParam) | |
c92b1537 | 72 | ,fResponseParam(s.fResponseParam) |
451f5018 | 73 | ,fModule(s.fModule) |
344d4ff3 | 74 | ,fReadOutCycleOffset(s.fReadOutCycleOffset) |
75 | ,fReadOutCycleLength(s.fReadOutCycleLength) | |
451f5018 | 76 | ,fEvent(s.fEvent) |
77 | ,fDebug(s.fDebug) | |
78 | { | |
79 | // Copy Constructor | |
80 | } | |
81 | ||
82 | //_________________________________________________________________________ | |
83 | AliITSUSimulation& AliITSUSimulation::operator=(const AliITSUSimulation &s) | |
84 | { | |
85 | // Assignment operator | |
86 | if(&s == this) return *this; | |
87 | fSeg = s.fSeg; | |
88 | fCalibDead = s.fCalibDead; | |
89 | fCalibNoisy= s.fCalibNoisy; | |
90 | fSensMap = s.fSensMap; | |
91 | fSimuParam = s.fSimuParam; | |
c92b1537 | 92 | fResponseParam = s.fResponseParam; |
451f5018 | 93 | fModule = s.fModule; |
344d4ff3 | 94 | fReadOutCycleOffset = s.fReadOutCycleOffset; |
95 | fReadOutCycleLength = s.fReadOutCycleLength; | |
451f5018 | 96 | fEvent = s.fEvent; |
97 | return *this; | |
98 | } | |
99 | ||
100 | //______________________________________________________________________ | |
29ad4146 | 101 | void AliITSUSimulation::InitSimulationModule(AliITSUModule* mod, Int_t event, AliITSsegmentation* seg, AliITSUParamList* resp) |
451f5018 | 102 | { |
103 | // This function creates maps to build the list of tracks for each | |
104 | // summable digit. Inputs defined by base class. | |
105 | // | |
c92b1537 | 106 | SetModule(mod); |
451f5018 | 107 | SetSegmentation(seg); |
c92b1537 | 108 | SetResponseParam(resp); |
451f5018 | 109 | ClearMap(); |
6b847cde | 110 | memset(fCyclesID,0,(1+2*kMaxROCycleAccept)*sizeof(Bool_t)); |
c92b1537 | 111 | // |
c92b1537 | 112 | SetEvent(event); |
113 | ||
451f5018 | 114 | } |
115 | ||
116 | //______________________________________________________________________ | |
117 | Bool_t AliITSUSimulation::AddSDigitsToModule(TSeqCollection *pItemArr,Int_t mask ) | |
118 | { | |
119 | // Add Summable digits to module maps. | |
120 | // Inputs: | |
121 | // pItemArr Array of AliITSpListItems (SDigits). | |
122 | // mask Track number off set value | |
123 | // | |
124 | Int_t nItems = pItemArr->GetEntries(); | |
125 | Bool_t sig = kFALSE; | |
126 | // | |
127 | for( Int_t i=0; i<nItems; i++ ) { | |
128 | AliITSUSDigit * pItem = (AliITSUSDigit *)(pItemArr->At( i )); | |
c92b1537 | 129 | if(pItem->GetModule() != int(fModule->GetIndex()) ) AliFatal(Form("SDigits module %d != current module %d: exit", pItem->GetModule(),fModule->GetIndex())); |
451f5018 | 130 | if(pItem->GetSumSignal()>0.0 ) sig = kTRUE; |
131 | AliITSUSDigit* oldItem = (AliITSUSDigit*)fSensMap->GetItem(pItem); | |
132 | if (!oldItem) { | |
133 | oldItem = (AliITSUSDigit*)fSensMap->RegisterItem( new(fSensMap->GetFree()) AliITSUSDigit(*pItem) ); | |
134 | if (mask) oldItem->ShiftIndices(mask); | |
135 | } | |
136 | else oldItem->AddTo(mask, pItem); | |
137 | } | |
138 | return sig; | |
139 | } | |
140 | ||
141 | //______________________________________________________________________ | |
b2679935 | 142 | void AliITSUSimulation::UpdateMapSignal(UInt_t col,UInt_t row,Int_t trk,Int_t ht,Double_t signal, Int_t roCycle) |
451f5018 | 143 | { |
144 | // update map with new hit | |
fbcb7a55 | 145 | // Note: roCycle can be anything between -kMaxROCycleAccept : kMaxROCycleAccept |
6b847cde | 146 | if (Abs(roCycle)>kMaxROCycleAccept) { |
147 | AliError(Form("CycleID %d is outside of allowed +-%d range",roCycle,kMaxROCycleAccept)); | |
148 | return; | |
149 | } | |
fbcb7a55 | 150 | UInt_t ind = fSensMap->GetIndex(col,row,roCycle); |
6b847cde | 151 | AliITSUSDigit* oldItem = (AliITSUSDigit*)fSensMap->GetItem(ind); |
152 | if (!oldItem) { | |
fbcb7a55 | 153 | fSensMap->RegisterItem( new(fSensMap->GetFree()) AliITSUSDigit(trk,ht,fModule->GetIndex(),ind,signal,roCycle) ); |
154 | fCyclesID[roCycle+kMaxROCycleAccept] = kTRUE; | |
155 | } | |
451f5018 | 156 | else oldItem->AddSignal(trk,ht,signal); |
120e5202 | 157 | // |
451f5018 | 158 | } |
159 | ||
160 | //______________________________________________________________________ | |
b2679935 | 161 | void AliITSUSimulation::UpdateMapNoise(UInt_t col,UInt_t row,Double_t noise, Int_t roCycle) |
451f5018 | 162 | { |
163 | // update map with new hit | |
6b847cde | 164 | if (Abs(roCycle)>kMaxROCycleAccept) { |
165 | AliError(Form("CycleID %d is outside of allowed +-%d range",roCycle,kMaxROCycleAccept)); | |
166 | return; | |
167 | } | |
b2679935 | 168 | UInt_t ind = fSensMap->GetIndex(col,row,roCycle); |
451f5018 | 169 | AliITSUSDigit* oldItem = (AliITSUSDigit*)fSensMap->GetItem(ind); |
fbcb7a55 | 170 | if (!oldItem) { |
171 | fSensMap->RegisterItem( new(fSensMap->GetFree()) AliITSUSDigit(fModule->GetIndex(),ind,noise,roCycle) ); | |
172 | fCyclesID[roCycle+kMaxROCycleAccept] = kTRUE; | |
173 | } | |
451f5018 | 174 | else oldItem->AddNoise(noise); |
175 | } | |
176 | ||
177 | //______________________________________________________________________ | |
178 | Int_t AliITSUSimulation::GenOrderedSample(UInt_t nmax,UInt_t ngen,TArrayI &vals,TArrayI &indx) | |
179 | { | |
180 | // generate random sample [0:nmax] of ngen variables, and fill orreder indices | |
181 | // return actual number of generated values | |
182 | if (vals.GetSize()<(int)ngen) vals.Set(ngen); | |
183 | if (indx.GetSize()<(int)ngen) indx.Set(ngen); | |
184 | int* valA = vals.GetArray(); | |
185 | int* indA = indx.GetArray(); | |
186 | if (ngen>=nmax) { | |
187 | ngen = nmax-1; | |
188 | for (int i=(int)ngen;i--;) {valA[i]=indA[i]=i;} | |
189 | return ngen; | |
190 | } | |
191 | Bool_t rep; | |
192 | for (int i=0;i<(int)ngen;i++) { | |
193 | do { // exclude repetitions | |
194 | rep = kFALSE; | |
195 | valA[i] = gRandom->Rndm()*nmax; | |
196 | for (int j=i;j--;) if (valA[j]==valA[i]) {rep=kTRUE;break;} | |
197 | } while(rep); | |
198 | } | |
a11ef2e4 | 199 | Sort((int)ngen,valA,indA,kFALSE); |
451f5018 | 200 | return ngen; |
201 | } | |
344d4ff3 | 202 | |
203 | //______________________________________________________________________ | |
204 | Double_t AliITSUSimulation::GenerateReadOutCycleOffset() | |
205 | { | |
206 | // Generate randomly the strobe | |
207 | // phase w.r.t to the LHC clock | |
208 | return fReadOutCycleOffset = fReadOutCycleLength*gRandom->Rndm(); | |
209 | // 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?! | |
210 | // 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 | |
211 | // collision will be lost) untill real number is specified | |
212 | // | |
213 | } |