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e8189707 | 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 | #include <TH1.h> | |
17 | #include <TObjArray.h> | |
e8189707 | 18 | |
19 | #include "AliITSMapA2.h" | |
20 | #include "AliITSsegmentation.h" | |
e8189707 | 21 | #include "AliITSdigit.h" |
22 | ||
766e3066 | 23 | //////////////////////////////////////////////////////////////////////// |
24 | // Map Class for ITS. Implementation A2. In this implementation, the // | |
25 | // 2 dimensional (iz,ix) map is filled with Double precision floating // | |
26 | // point values. Since this class is derived for AliITSMapA1 it also // | |
27 | // has all of the functionality of that class as well. For each // | |
28 | // cell a corresponding TObject, a hit, can also be stored. // | |
29 | // The detector geometry is accessed via the that detectors // | |
30 | // segmentation class and stored here for conveniance. // | |
31 | //////////////////////////////////////////////////////////////////////// | |
e8189707 | 32 | |
33 | ClassImp(AliITSMapA2) | |
34 | ||
766e3066 | 35 | //______________________________________________________________________ |
e56160b8 | 36 | AliITSMapA2::AliITSMapA2(): |
37 | fHitMapD(0), | |
38 | fMapThresholdD(0), | |
39 | fScaleSizeX(0), | |
40 | fScaleSizeZ(0){ | |
766e3066 | 41 | // default constructor |
94d90134 | 42 | |
766e3066 | 43 | fSegmentation = 0; |
44 | fNpz = 0; | |
45 | fNpx = 0; | |
46 | fMaxIndex = 0; | |
766e3066 | 47 | fObjects = 0; |
48 | fNobjects = 0; | |
e8189707 | 49 | } |
766e3066 | 50 | //______________________________________________________________________ |
e56160b8 | 51 | AliITSMapA2::AliITSMapA2(AliITSsegmentation *seg): |
52 | fHitMapD(0), | |
53 | fMapThresholdD(0), | |
54 | fScaleSizeX(1), | |
55 | fScaleSizeZ(1){ | |
766e3066 | 56 | //constructor |
e8189707 | 57 | |
766e3066 | 58 | fSegmentation = seg; |
59 | fNpz = fSegmentation->Npz(); | |
60 | fNpx = fSegmentation->Npx(); | |
61 | fMaxIndex = fNpz*fNpx+fNpx; // 2 halves of detector | |
645ecce9 | 62 | fHitMapD = new Double_t[fMaxIndex+1]; |
766e3066 | 63 | fObjects = 0; |
64 | fNobjects = 0; | |
65 | ClearMap(); | |
e8189707 | 66 | } |
766e3066 | 67 | //______________________________________________________________________ |
68 | AliITSMapA2::AliITSMapA2(AliITSsegmentation *seg, | |
e56160b8 | 69 | Int_t scalesizeX, Int_t scalesizeZ): |
70 | fHitMapD(0), | |
71 | fMapThresholdD(0), | |
72 | fScaleSizeX(scalesizeX), | |
73 | fScaleSizeZ(scalesizeZ){ | |
766e3066 | 74 | //constructor |
e8189707 | 75 | |
766e3066 | 76 | fSegmentation = seg; |
766e3066 | 77 | fNpz = fScaleSizeZ*fSegmentation->Npz(); |
78 | fNpx = fScaleSizeX*fSegmentation->Npx(); | |
79 | fMaxIndex = fNpz*fNpx+fNpx; // 2 halves of detector | |
e3df8399 | 80 | fHitMapD = new Double_t[fMaxIndex+1]; |
766e3066 | 81 | fObjects = 0; |
82 | fNobjects = 0; | |
83 | ClearMap(); | |
e8189707 | 84 | } |
766e3066 | 85 | //______________________________________________________________________ |
86 | AliITSMapA2::AliITSMapA2(AliITSsegmentation *seg, TObjArray *obj, | |
e56160b8 | 87 | Double_t thresh): |
88 | fHitMapD(0), | |
89 | fMapThresholdD(thresh), | |
90 | fScaleSizeX(1), | |
91 | fScaleSizeZ(1){ | |
766e3066 | 92 | //constructor |
e8189707 | 93 | |
766e3066 | 94 | fNobjects = 0; |
766e3066 | 95 | fSegmentation = seg; |
96 | fNpz = fSegmentation->Npz(); | |
97 | fNpx = fSegmentation->Npx(); | |
98 | fMaxIndex = fNpz*fNpx+fNpx; // 2 halves of detector | |
e3df8399 | 99 | fHitMapD = new Double_t[fMaxIndex+1]; |
766e3066 | 100 | fObjects = obj; |
101 | if (fObjects) fNobjects = fObjects->GetEntriesFast(); | |
766e3066 | 102 | ClearMap(); |
e8189707 | 103 | } |
766e3066 | 104 | //______________________________________________________________________ |
105 | AliITSMapA2::~AliITSMapA2(){ | |
106 | //destructor | |
e8189707 | 107 | |
766e3066 | 108 | if (fHitMapD) delete[] fHitMapD; |
e8189707 | 109 | } |
110 | ||
e56160b8 | 111 | |
766e3066 | 112 | //______________________________________________________________________ |
113 | void AliITSMapA2::ClearMap(){ | |
114 | //clear array | |
e8189707 | 115 | |
766e3066 | 116 | memset(fHitMapD,0,sizeof(Double_t)*fMaxIndex); |
117 | } | |
118 | //______________________________________________________________________ | |
119 | void AliITSMapA2::FillMap(){ | |
120 | // fills signal map from digits - apply a threshold for signal | |
e8189707 | 121 | |
766e3066 | 122 | if (!fObjects) return; |
123 | ||
124 | Int_t ndigits = fObjects->GetEntriesFast(); | |
125 | if (!ndigits) return; | |
126 | ||
127 | AliITSdigit *dig; | |
128 | for (Int_t ndig=0; ndig<ndigits; ndig++) { | |
129 | dig = (AliITSdigit*)fObjects->UncheckedAt(ndig); | |
ecee53fc | 130 | Double_t signal = (Double_t)(dig->GetSignal()); |
131 | if (signal > fMapThresholdD) SetHit(dig->GetCoord1(),dig->GetCoord2(),signal); | |
766e3066 | 132 | } // end for ndig |
e8189707 | 133 | } |
766e3066 | 134 | //______________________________________________________________________ |
766e3066 | 135 | void AliITSMapA2::FlagHit(Int_t iz, Int_t ix){ |
136 | //flag an entry | |
e8189707 | 137 | |
766e3066 | 138 | fHitMapD[CheckedIndex(iz, ix)]= |
139 | -1000.*TMath::Abs((Int_t)(fHitMapD[CheckedIndex(iz, ix)])+1.); | |
e8189707 | 140 | } |
766e3066 | 141 | //______________________________________________________________________ |
ce189d7c | 142 | TObject* AliITSMapA2::GetHit(Int_t i, Int_t /* dummy */) const { |
766e3066 | 143 | //return a pointer to the 1D histogram |
e8189707 | 144 | |
766e3066 | 145 | if (fObjects) { |
146 | return fObjects->UncheckedAt(i); | |
147 | } else return NULL; | |
e8189707 | 148 | } |
766e3066 | 149 | //______________________________________________________________________ |
590d15ee | 150 | Double_t AliITSMapA2::GetSignal(Int_t index) const { |
766e3066 | 151 | //get signal in a cell |
e8189707 | 152 | |
766e3066 | 153 | if (index<fMaxIndex) return (index <0) ? 0. : fHitMapD[index]; |
154 | else return 0.; | |
e8189707 | 155 | } |
766e3066 | 156 | //______________________________________________________________________ |
85ac1062 | 157 | FlagTypeITS AliITSMapA2::TestHit(Int_t iz, Int_t ix){ |
766e3066 | 158 | // check if the entry has already been flagged |
94d90134 | 159 | |
85ac1062 | 160 | if (CheckedIndex(iz, ix) < 0) return kEmptyITS; |
f50d33af | 161 | Int_t inf=(Int_t)fHitMapD[CheckedIndex(iz, ix)]; |
e8189707 | 162 | |
163 | if (inf <= -1000) { | |
85ac1062 | 164 | return kUsedITS; |
e8189707 | 165 | } else if (inf == 0) { |
85ac1062 | 166 | return kEmptyITS; |
e8189707 | 167 | } else { |
85ac1062 | 168 | return kUnusedITS; |
766e3066 | 169 | } // end if inf... |
e8189707 | 170 | } |
766e3066 | 171 | //______________________________________________________________________ |
172 | void AliITSMapA2::FillMapFromHist(){ | |
173 | // fills map from 1D histograms | |
e8189707 | 174 | |
766e3066 | 175 | if (!fObjects) return; |
176 | ||
177 | // an example | |
178 | for( Int_t i=0; i<fNobjects; i++) { | |
179 | TH1F *hist =(TH1F *)fObjects->UncheckedAt(i); | |
180 | Int_t nsamples = hist->GetNbinsX(); | |
181 | for( Int_t j=0; j<nsamples; j++) { | |
182 | Double_t signal = (Double_t)(hist->GetBinContent(j+1)); | |
183 | if (signal > fMapThresholdD) SetHit(i,j,signal); | |
184 | } // end for j | |
185 | } // end for i | |
e8189707 | 186 | } |
766e3066 | 187 | //______________________________________________________________________ |
188 | void AliITSMapA2::FillHist(){ | |
189 | // fill 1D histograms from map | |
190 | ||
191 | if (!fObjects || fScaleSizeX != 1) return; | |
192 | ||
193 | // an example | |
194 | for( Int_t i=0; i<fNobjects; i++) { | |
195 | TH1F *hist =(TH1F *)fObjects->UncheckedAt(i); | |
196 | for( Int_t j=0; j<fNpx; j++) { | |
197 | Double_t signal=GetSignal(i,j); | |
198 | if (signal > fMapThresholdD) hist->Fill((Float_t)j,signal); | |
199 | } // end for j | |
200 | } // end for i | |
e8189707 | 201 | } |
766e3066 | 202 | //______________________________________________________________________ |
203 | void AliITSMapA2::ResetHist(){ | |
204 | // Reset histograms | |
205 | ||
206 | if (!fObjects) return; | |
207 | ||
208 | for( Int_t i=0; i<fNobjects; i++) { | |
209 | if ((*fObjects)[i]) ((TH1F*)(*fObjects)[i])->Reset(); | |
210 | } // end for i | |
e8189707 | 211 | } |
766e3066 | 212 | //______________________________________________________________________ |
213 | void AliITSMapA2::AddSignal(Int_t iz,Int_t ix,Double_t sig){ | |
214 | // Addes sig to cell iz. equivalent to the very common | |
215 | // sig = fMapA2->GetSignal(iz,ix) + sig; fMapA2->SetHit(iz,ix,sig); | |
e8189707 | 216 | |
766e3066 | 217 | |
218 | Int_t index=GetHitIndex(iz,ix); | |
219 | if(index<0) return; | |
220 | fHitMapD[CheckedIndex(iz, ix)] += sig; | |
221 | } |