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168c7b3c | 1 | // -*- mode: c++ -*- |
d655d7dd | 2 | /************************************************************************** |
e37e3c84 | 3 | * This file is property of and copyright by * |
4 | * the Relativistic Heavy Ion Group (RHIG), Yale University, US, 2009 * | |
5 | * * | |
6 | * Primary Author: Per Thomas Hille <perthomas.hille@yale.edu> * | |
d655d7dd | 7 | * * |
d655d7dd | 8 | * Contributors are mentioned in the code where appropriate. * |
bab48e74 | 9 | * Please report bugs to perthomas.hille@yale.edu * |
d655d7dd | 10 | * * |
11 | * Permission to use, copy, modify and distribute this software and its * | |
12 | * documentation strictly for non-commercial purposes is hereby granted * | |
13 | * without fee, provided that the above copyright notice appears in all * | |
14 | * copies and that both the copyright notice and this permission notice * | |
15 | * appear in the supporting documentation. The authors make no claims * | |
16 | * about the suitability of this software for any purpose. It is * | |
17 | * provided "as is" without express or implied warranty. * | |
18 | **************************************************************************/ | |
19 | ||
20 | // The Peak-Finder algorithm | |
21 | // The amplitude is extracted as a | |
22 | // weighted sum of the samples using the | |
23 | // best possible weights. | |
24 | // The wights is calculated only once and the | |
25 | // Actual extraction of amplitude and peak position | |
26 | // Is done with a simple vector multiplication, allowing for | |
27 | // Extreemely fast computations. | |
28 | ||
57839add | 29 | #include "AliCaloRawAnalyzerPeakFinder.h" |
30 | #include "AliCaloBunchInfo.h" | |
31 | #include "AliCaloFitResults.h" | |
d655d7dd | 32 | #include "TMath.h" |
33 | #include "AliLog.h" | |
bab48e74 | 34 | #include "AliCDBEntry.h" |
35 | #include "AliCDBManager.h" | |
36 | #include "TFile.h" | |
37 | #include "AliCaloPeakFinderVectors.h" | |
168c7b3c | 38 | #include <iostream> |
92d9f317 | 39 | |
d655d7dd | 40 | using namespace std; |
41 | ||
bab48e74 | 42 | |
d468be51 | 43 | |
e37e3c84 | 44 | ClassImp( AliCaloRawAnalyzerPeakFinder ) |
45 | ||
bab48e74 | 46 | |
47 | AliCaloRawAnalyzerPeakFinder::AliCaloRawAnalyzerPeakFinder() :AliCaloRawAnalyzer("Peak-Finder", "PF"), | |
fc7cd737 | 48 | fPeakFinderVectors(0), |
168c7b3c | 49 | fRunOnAlien(false), |
50 | fIsInitialized(false) | |
d655d7dd | 51 | { |
fc7cd737 | 52 | //Comment |
168c7b3c | 53 | fAlgo= Algo::kPeakFinder; |
bab48e74 | 54 | InitOCDB(fRunOnAlien); |
55 | fPeakFinderVectors = new AliCaloPeakFinderVectors() ; | |
56 | ResetVectors(); | |
57 | LoadVectorsOCDB(); | |
bab48e74 | 58 | } |
59 | ||
60 | ||
61 | void | |
62 | AliCaloRawAnalyzerPeakFinder::InitOCDB(bool alien) const | |
63 | { | |
64 | // Setting the default OCDB pathe depending on wether we work locally or on the GRID. | |
b2eed176 | 65 | if( !AliCDBManager::Instance()->IsDefaultStorageSet ()) |
66 | { | |
67 | AliCDBManager::Instance()->SetDefaultStorage( alien == true ? "alien://$ALICE_ROOT/OCDB" : "local://$ALICE_ROOT/OCDB" ); | |
68 | AliCDBManager::Instance()->SetRun(100); | |
69 | } | |
bab48e74 | 70 | } |
d655d7dd | 71 | |
d655d7dd | 72 | |
bab48e74 | 73 | void |
74 | AliCaloRawAnalyzerPeakFinder::ResetVectors() | |
75 | { | |
fc7cd737 | 76 | //As name implies |
168c7b3c | 77 | for(int i=0; i < PF::MAXSTART; i++) |
d655d7dd | 78 | { |
168c7b3c | 79 | for(int j=0; j < PF::SAMPLERANGE; j++ ) |
d655d7dd | 80 | { |
d655d7dd | 81 | for(int k=0; k < 100; k++ ) |
82 | { | |
83 | fPFAmpVectors[i][j][k] = 0; | |
84 | fPFTofVectors[i][j][k] = 0; | |
48a2e3eb | 85 | fPFAmpVectorsCoarse[i][j][k] = 0; |
86 | fPFTofVectorsCoarse[i][j][k] = 0; | |
d655d7dd | 87 | } |
88 | } | |
89 | } | |
d655d7dd | 90 | } |
91 | ||
92 | ||
57839add | 93 | AliCaloRawAnalyzerPeakFinder::~AliCaloRawAnalyzerPeakFinder() |
d655d7dd | 94 | { |
95 | //comment | |
d655d7dd | 96 | } |
97 | ||
98 | ||
48a2e3eb | 99 | Double_t |
100 | AliCaloRawAnalyzerPeakFinder::ScanCoarse(const Double_t *const array, const int length ) const | |
101 | { | |
bab48e74 | 102 | // Fisrt (coarce) estimate of Amplitude using the Peak-Finder. |
103 | // The output of the first iteration is sued to select vectors | |
104 | // for the second iteration. | |
105 | ||
48a2e3eb | 106 | Double_t tmpTof = 0; |
107 | Double_t tmpAmp= 0; | |
108 | ||
109 | for(int i=0; i < length; i++) | |
110 | { | |
111 | tmpTof += fPFTofVectorsCoarse[0][length][i]*array[i]; | |
112 | tmpAmp += fPFAmpVectorsCoarse[0][length][i]*array[i]; | |
113 | } | |
114 | ||
115 | tmpTof = tmpTof / tmpAmp ; | |
116 | return tmpTof; | |
117 | } | |
118 | ||
119 | ||
57839add | 120 | AliCaloFitResults |
121 | AliCaloRawAnalyzerPeakFinder::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, const UInt_t altrocfg1, const UInt_t altrocfg2 ) | |
d655d7dd | 122 | { |
1f847d9f | 123 | // Evaluation of amplitude and TOF |
168c7b3c | 124 | if( fIsInitialized == false ) |
125 | { | |
126 | cout << __FILE__ << ":" << __LINE__ << "ERROR, peakfinder vectors not loaded" << endl; | |
127 | return AliCaloFitResults(kInvalid, kInvalid); | |
128 | } | |
129 | ||
d655d7dd | 130 | // Extracting the amplitude using the Peak-Finder algorithm |
131 | // The amplitude is a weighted sum of the samples using | |
132 | // optimum weights. | |
133 | ||
134 | short maxampindex; //index of maximum amplitude | |
135 | short maxamp; //Maximum amplitude | |
bab48e74 | 136 | fAmp = 0; |
d655d7dd | 137 | int index = SelectBunch( bunchvector, &maxampindex, &maxamp ); |
168c7b3c | 138 | |
d655d7dd | 139 | if( index >= 0) |
140 | { | |
141 | Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed ); | |
142 | Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed ); | |
f57baa2d | 143 | short timebinOffset = maxampindex - (bunchvector.at( index ).GetLength()-1); |
168c7b3c | 144 | |
2cd0ffda | 145 | if( maxf < fAmpCut || ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then) |
d655d7dd | 146 | { |
168c7b3c | 147 | return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset); |
2cd0ffda | 148 | } |
149 | else if ( maxf >= fAmpCut ) | |
150 | { | |
151 | int first = 0; | |
152 | int last = 0; | |
153 | short maxrev = maxampindex - bunchvector.at(index).GetStartBin(); | |
92d9f317 | 154 | SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev, &first, &last, fFitArrayCut); |
d655d7dd | 155 | int nsamples = last - first; |
2cd0ffda | 156 | |
157 | if( ( nsamples ) >= fNsampleCut ) // no if statement needed really; keep for readability | |
d655d7dd | 158 | { |
159 | int startbin = bunchvector.at(index).GetStartBin(); | |
48a2e3eb | 160 | int n = last - first; |
d655d7dd | 161 | int pfindex = n - fNsampleCut; |
168c7b3c | 162 | pfindex = pfindex > PF::SAMPLERANGE ? PF::SAMPLERANGE : pfindex; |
8ffb0474 | 163 | int dt = maxampindex - startbin -2; |
8ffb0474 | 164 | int tmpindex = 0; |
48a2e3eb | 165 | Float_t tmptof = ScanCoarse( &fReversed[dt] , n ); |
166 | ||
167 | if( tmptof < -1 ) | |
168 | { | |
169 | tmpindex = 0; | |
170 | } | |
171 | else | |
172 | if( tmptof > -1 && tmptof < 100 ) | |
173 | { | |
bab48e74 | 174 | tmpindex = 1; |
48a2e3eb | 175 | } |
176 | else | |
177 | { | |
178 | tmpindex = 2; | |
179 | } | |
bab48e74 | 180 | |
8ffb0474 | 181 | double tof = 0; |
168c7b3c | 182 | for(int k=0; k < PF::SAMPLERANGE; k++ ) |
8ffb0474 | 183 | { |
184 | tof += fPFTofVectors[0][pfindex][k]*fReversed[ dt +k + tmpindex -1 ]; | |
185 | } | |
168c7b3c | 186 | for( int i=0; i < PF::SAMPLERANGE; i++ ) |
bab48e74 | 187 | { |
188 | { | |
f67ce0df | 189 | |
bab48e74 | 190 | fAmp += fPFAmpVectors[0][pfindex][i]*fReversed[ dt +i +tmpindex -1 ]; |
191 | } | |
192 | } | |
f67ce0df | 193 | |
bab48e74 | 194 | if( TMath::Abs( (maxf - fAmp )/maxf ) > 0.1 ) |
48a2e3eb | 195 | { |
bab48e74 | 196 | fAmp = maxf; |
48a2e3eb | 197 | } |
48a2e3eb | 198 | |
92d9f317 | 199 | tof = timebinOffset - 0.01*tof/fAmp - fL1Phase/TIMEBINWITH; // clock |
2cd0ffda | 200 | Float_t chi2 = CalculateChi2(fAmp, tof-timebinOffset+maxrev, first, last); |
201 | Int_t ndf = last - first - 1; // nsamples - 2 | |
168c7b3c | 202 | return AliCaloFitResults( maxamp, ped , Ret::kFitPar, fAmp, tof, |
2cd0ffda | 203 | timebinOffset, chi2, ndf, |
168c7b3c | 204 | Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); |
d655d7dd | 205 | } |
206 | else | |
207 | { | |
2cd0ffda | 208 | Float_t chi2 = CalculateChi2(maxf, maxrev, first, last); |
209 | Int_t ndf = last - first - 1; // nsamples - 2 | |
168c7b3c | 210 | return AliCaloFitResults( maxamp, ped , Ret::kCrude, maxf, timebinOffset, |
211 | timebinOffset, chi2, ndf, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
d655d7dd | 212 | } |
2cd0ffda | 213 | } // ampcut |
d655d7dd | 214 | } |
168c7b3c | 215 | return AliCaloFitResults(kInvalid, kInvalid); |
d655d7dd | 216 | } |
217 | ||
218 | ||
bab48e74 | 219 | void |
168c7b3c | 220 | AliCaloRawAnalyzerPeakFinder::CopyVectors( const AliCaloPeakFinderVectors *const pfv ) |
bab48e74 | 221 | { |
222 | // As name implies | |
bab48e74 | 223 | if ( pfv != 0) |
224 | { | |
168c7b3c | 225 | for(int i = 0; i < PF::MAXSTART ; i++) |
bab48e74 | 226 | { |
168c7b3c | 227 | for( int j=0; j < PF::SAMPLERANGE; j++) |
bab48e74 | 228 | { |
0cb95545 | 229 | pfv->GetVector( i, j, fPFAmpVectors[i][j] , fPFTofVectors[i][j], |
230 | fPFAmpVectorsCoarse[i][j] , fPFTofVectorsCoarse[i][j] ); | |
168c7b3c | 231 | |
bab48e74 | 232 | fPeakFinderVectors->SetVector( i, j, fPFAmpVectors[i][j], fPFTofVectors[i][j], |
233 | fPFAmpVectorsCoarse[i][j], fPFTofVectorsCoarse[i][j] ); | |
234 | } | |
235 | } | |
236 | } | |
237 | else | |
238 | { | |
239 | AliFatal( "pfv = ZERO !!!!!!!"); | |
bab48e74 | 240 | } |
241 | } | |
242 | ||
243 | ||
bab48e74 | 244 | void |
245 | AliCaloRawAnalyzerPeakFinder::LoadVectorsOCDB() | |
246 | { | |
247 | //Loading of Peak-Finder vectors from the | |
248 | //Offline Condition Database (OCDB) | |
bab48e74 | 249 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/PeakFinder/"); |
11bcc677 | 250 | |
bab48e74 | 251 | if( entry != 0 ) |
11bcc677 | 252 | { |
f73babef | 253 | //cout << __FILE__ << ":" << __LINE__ << ": Printing metadata !! " << endl; |
254 | //entry->PrintMetaData(); | |
11bcc677 | 255 | AliCaloPeakFinderVectors *pfv = (AliCaloPeakFinderVectors *)entry->GetObject(); |
256 | if( pfv == 0 ) | |
bab48e74 | 257 | { |
11bcc677 | 258 | cout << __FILE__ << ":" << __LINE__ << "_ ERRROR " << endl; |
259 | } | |
11bcc677 | 260 | CopyVectors( pfv ); |
1f847d9f | 261 | |
11bcc677 | 262 | if( pfv != 0 ) |
263 | { | |
264 | fIsInitialized = true; | |
168c7b3c | 265 | } |
11bcc677 | 266 | } |
bab48e74 | 267 | } |
268 | ||
269 | ||
bab48e74 | 270 | void |
271 | AliCaloRawAnalyzerPeakFinder::WriteRootFile() const | |
afae9650 | 272 | { // Utility function to write Peak-Finder vectors to an root file |
bab48e74 | 273 | // The output is used to create an OCDB entry. |
bab48e74 | 274 | fPeakFinderVectors->PrintVectors(); |
bab48e74 | 275 | TFile *f = new TFile("peakfindervectors2.root", "recreate" ); |
276 | fPeakFinderVectors->Write(); | |
277 | f->Close(); | |
278 | delete f; | |
48a2e3eb | 279 | } |
168c7b3c | 280 | |
281 | ||
282 | void | |
283 | AliCaloRawAnalyzerPeakFinder::PrintVectors() | |
afae9650 | 284 | { // Utility function to write Peak-Finder vectors |
168c7b3c | 285 | for(int i=0; i < 20; i++) |
286 | { | |
287 | for( int j = 0; j < PF::MAXSTART; j ++ ) | |
288 | { | |
289 | for( int k=0; k < PF::SAMPLERANGE; k++ ) | |
290 | { | |
291 | cout << fPFAmpVectors[j][k][i] << "\t" ; | |
292 | } | |
293 | } | |
294 | cout << endl; | |
295 | } | |
296 | cout << __FILE__ << ":" << __LINE__ << ":.... DONE !!" << endl; | |
297 | } |