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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 | |
e37e3c84 | 43 | ClassImp( AliCaloRawAnalyzerPeakFinder ) |
44 | ||
bab48e74 | 45 | |
46 | AliCaloRawAnalyzerPeakFinder::AliCaloRawAnalyzerPeakFinder() :AliCaloRawAnalyzer("Peak-Finder", "PF"), | |
fc7cd737 | 47 | fPeakFinderVectors(0), |
168c7b3c | 48 | fRunOnAlien(false), |
49 | fIsInitialized(false) | |
d655d7dd | 50 | { |
fc7cd737 | 51 | //Comment |
168c7b3c | 52 | fAlgo= Algo::kPeakFinder; |
bab48e74 | 53 | InitOCDB(fRunOnAlien); |
54 | fPeakFinderVectors = new AliCaloPeakFinderVectors() ; | |
55 | ResetVectors(); | |
56 | LoadVectorsOCDB(); | |
bab48e74 | 57 | } |
58 | ||
59 | ||
60 | void | |
61 | AliCaloRawAnalyzerPeakFinder::InitOCDB(bool alien) const | |
62 | { | |
63 | // Setting the default OCDB pathe depending on wether we work locally or on the GRID. | |
b2eed176 | 64 | if( !AliCDBManager::Instance()->IsDefaultStorageSet ()) |
65 | { | |
66 | AliCDBManager::Instance()->SetDefaultStorage( alien == true ? "alien://$ALICE_ROOT/OCDB" : "local://$ALICE_ROOT/OCDB" ); | |
67 | AliCDBManager::Instance()->SetRun(100); | |
68 | } | |
bab48e74 | 69 | } |
d655d7dd | 70 | |
d655d7dd | 71 | |
bab48e74 | 72 | void |
73 | AliCaloRawAnalyzerPeakFinder::ResetVectors() | |
74 | { | |
fc7cd737 | 75 | //As name implies |
168c7b3c | 76 | for(int i=0; i < PF::MAXSTART; i++) |
d655d7dd | 77 | { |
168c7b3c | 78 | for(int j=0; j < PF::SAMPLERANGE; j++ ) |
d655d7dd | 79 | { |
d655d7dd | 80 | for(int k=0; k < 100; k++ ) |
81 | { | |
82 | fPFAmpVectors[i][j][k] = 0; | |
83 | fPFTofVectors[i][j][k] = 0; | |
48a2e3eb | 84 | fPFAmpVectorsCoarse[i][j][k] = 0; |
85 | fPFTofVectorsCoarse[i][j][k] = 0; | |
d655d7dd | 86 | } |
87 | } | |
88 | } | |
d655d7dd | 89 | } |
90 | ||
91 | ||
57839add | 92 | AliCaloRawAnalyzerPeakFinder::~AliCaloRawAnalyzerPeakFinder() |
d655d7dd | 93 | { |
94 | //comment | |
d655d7dd | 95 | } |
96 | ||
97 | ||
48a2e3eb | 98 | Double_t |
99 | AliCaloRawAnalyzerPeakFinder::ScanCoarse(const Double_t *const array, const int length ) const | |
100 | { | |
bab48e74 | 101 | // Fisrt (coarce) estimate of Amplitude using the Peak-Finder. |
102 | // The output of the first iteration is sued to select vectors | |
103 | // for the second iteration. | |
104 | ||
48a2e3eb | 105 | Double_t tmpTof = 0; |
106 | Double_t tmpAmp= 0; | |
107 | ||
108 | for(int i=0; i < length; i++) | |
109 | { | |
110 | tmpTof += fPFTofVectorsCoarse[0][length][i]*array[i]; | |
111 | tmpAmp += fPFAmpVectorsCoarse[0][length][i]*array[i]; | |
112 | } | |
113 | ||
114 | tmpTof = tmpTof / tmpAmp ; | |
115 | return tmpTof; | |
116 | } | |
117 | ||
118 | ||
57839add | 119 | AliCaloFitResults |
120 | AliCaloRawAnalyzerPeakFinder::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, const UInt_t altrocfg1, const UInt_t altrocfg2 ) | |
d655d7dd | 121 | { |
1f847d9f | 122 | // Evaluation of amplitude and TOF |
168c7b3c | 123 | if( fIsInitialized == false ) |
124 | { | |
125 | cout << __FILE__ << ":" << __LINE__ << "ERROR, peakfinder vectors not loaded" << endl; | |
126 | return AliCaloFitResults(kInvalid, kInvalid); | |
127 | } | |
128 | ||
d655d7dd | 129 | // Extracting the amplitude using the Peak-Finder algorithm |
130 | // The amplitude is a weighted sum of the samples using | |
131 | // optimum weights. | |
132 | ||
133 | short maxampindex; //index of maximum amplitude | |
134 | short maxamp; //Maximum amplitude | |
bab48e74 | 135 | fAmp = 0; |
d655d7dd | 136 | int index = SelectBunch( bunchvector, &maxampindex, &maxamp ); |
168c7b3c | 137 | |
d655d7dd | 138 | if( index >= 0) |
139 | { | |
140 | Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed ); | |
141 | Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed ); | |
f57baa2d | 142 | short timebinOffset = maxampindex - (bunchvector.at( index ).GetLength()-1); |
168c7b3c | 143 | |
2cd0ffda | 144 | if( maxf < fAmpCut || ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then) |
d655d7dd | 145 | { |
168c7b3c | 146 | return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset); |
2cd0ffda | 147 | } |
148 | else if ( maxf >= fAmpCut ) | |
149 | { | |
150 | int first = 0; | |
151 | int last = 0; | |
152 | short maxrev = maxampindex - bunchvector.at(index).GetStartBin(); | |
92d9f317 | 153 | SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev, &first, &last, fFitArrayCut); |
d655d7dd | 154 | int nsamples = last - first; |
2cd0ffda | 155 | |
156 | if( ( nsamples ) >= fNsampleCut ) // no if statement needed really; keep for readability | |
d655d7dd | 157 | { |
158 | int startbin = bunchvector.at(index).GetStartBin(); | |
48a2e3eb | 159 | int n = last - first; |
d655d7dd | 160 | int pfindex = n - fNsampleCut; |
168c7b3c | 161 | pfindex = pfindex > PF::SAMPLERANGE ? PF::SAMPLERANGE : pfindex; |
d655d7dd | 162 | |
8ffb0474 | 163 | int dt = maxampindex - startbin -2; |
8ffb0474 | 164 | int tmpindex = 0; |
165 | ||
168c7b3c | 166 | |
48a2e3eb | 167 | Float_t tmptof = ScanCoarse( &fReversed[dt] , n ); |
168 | ||
169 | if( tmptof < -1 ) | |
170 | { | |
171 | tmpindex = 0; | |
172 | } | |
173 | else | |
174 | if( tmptof > -1 && tmptof < 100 ) | |
175 | { | |
bab48e74 | 176 | tmpindex = 1; |
48a2e3eb | 177 | } |
178 | else | |
179 | { | |
180 | tmpindex = 2; | |
181 | } | |
bab48e74 | 182 | |
8ffb0474 | 183 | double tof = 0; |
168c7b3c | 184 | |
185 | for(int k=0; k < PF::SAMPLERANGE; k++ ) | |
8ffb0474 | 186 | { |
187 | tof += fPFTofVectors[0][pfindex][k]*fReversed[ dt +k + tmpindex -1 ]; | |
188 | } | |
bab48e74 | 189 | |
168c7b3c | 190 | for( int i=0; i < PF::SAMPLERANGE; i++ ) |
bab48e74 | 191 | { |
192 | { | |
193 | fAmp += fPFAmpVectors[0][pfindex][i]*fReversed[ dt +i +tmpindex -1 ]; | |
194 | } | |
195 | } | |
bab48e74 | 196 | if( TMath::Abs( (maxf - fAmp )/maxf ) > 0.1 ) |
48a2e3eb | 197 | { |
bab48e74 | 198 | fAmp = maxf; |
48a2e3eb | 199 | } |
48a2e3eb | 200 | |
92d9f317 | 201 | tof = timebinOffset - 0.01*tof/fAmp - fL1Phase/TIMEBINWITH; // clock |
1f847d9f | 202 | |
2cd0ffda | 203 | // use local-array time for chi2 estimate |
204 | Float_t chi2 = CalculateChi2(fAmp, tof-timebinOffset+maxrev, first, last); | |
205 | Int_t ndf = last - first - 1; // nsamples - 2 | |
168c7b3c | 206 | return AliCaloFitResults( maxamp, ped , Ret::kFitPar, fAmp, tof, |
2cd0ffda | 207 | timebinOffset, chi2, ndf, |
168c7b3c | 208 | Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); |
d655d7dd | 209 | } |
210 | else | |
211 | { | |
2cd0ffda | 212 | Float_t chi2 = CalculateChi2(maxf, maxrev, first, last); |
213 | Int_t ndf = last - first - 1; // nsamples - 2 | |
168c7b3c | 214 | return AliCaloFitResults( maxamp, ped , Ret::kCrude, maxf, timebinOffset, |
215 | timebinOffset, chi2, ndf, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
d655d7dd | 216 | } |
2cd0ffda | 217 | } // ampcut |
d655d7dd | 218 | } |
168c7b3c | 219 | return AliCaloFitResults(kInvalid, kInvalid); |
d655d7dd | 220 | } |
221 | ||
222 | ||
bab48e74 | 223 | void |
168c7b3c | 224 | AliCaloRawAnalyzerPeakFinder::CopyVectors( const AliCaloPeakFinderVectors *const pfv ) |
bab48e74 | 225 | { |
226 | // As name implies | |
bab48e74 | 227 | if ( pfv != 0) |
228 | { | |
168c7b3c | 229 | for(int i = 0; i < PF::MAXSTART ; i++) |
bab48e74 | 230 | { |
168c7b3c | 231 | for( int j=0; j < PF::SAMPLERANGE; j++) |
bab48e74 | 232 | { |
0cb95545 | 233 | pfv->GetVector( i, j, fPFAmpVectors[i][j] , fPFTofVectors[i][j], |
234 | fPFAmpVectorsCoarse[i][j] , fPFTofVectorsCoarse[i][j] ); | |
168c7b3c | 235 | |
bab48e74 | 236 | fPeakFinderVectors->SetVector( i, j, fPFAmpVectors[i][j], fPFTofVectors[i][j], |
237 | fPFAmpVectorsCoarse[i][j], fPFTofVectorsCoarse[i][j] ); | |
238 | } | |
239 | } | |
240 | } | |
241 | else | |
242 | { | |
243 | AliFatal( "pfv = ZERO !!!!!!!"); | |
bab48e74 | 244 | } |
245 | } | |
246 | ||
247 | ||
bab48e74 | 248 | void |
249 | AliCaloRawAnalyzerPeakFinder::LoadVectorsOCDB() | |
250 | { | |
251 | //Loading of Peak-Finder vectors from the | |
252 | //Offline Condition Database (OCDB) | |
bab48e74 | 253 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/PeakFinder/"); |
11bcc677 | 254 | |
bab48e74 | 255 | if( entry != 0 ) |
11bcc677 | 256 | { |
11bcc677 | 257 | cout << __FILE__ << ":" << __LINE__ << ": Printing metadata !! " << endl; |
258 | entry->PrintMetaData(); | |
11bcc677 | 259 | AliCaloPeakFinderVectors *pfv = (AliCaloPeakFinderVectors *)entry->GetObject(); |
260 | if( pfv == 0 ) | |
bab48e74 | 261 | { |
11bcc677 | 262 | cout << __FILE__ << ":" << __LINE__ << "_ ERRROR " << endl; |
263 | } | |
11bcc677 | 264 | CopyVectors( pfv ); |
1f847d9f | 265 | |
11bcc677 | 266 | if( pfv != 0 ) |
267 | { | |
268 | fIsInitialized = true; | |
168c7b3c | 269 | } |
11bcc677 | 270 | } |
bab48e74 | 271 | } |
272 | ||
273 | ||
d655d7dd | 274 | void |
bab48e74 | 275 | AliCaloRawAnalyzerPeakFinder::LoadVectorsASCII() |
d655d7dd | 276 | { |
bab48e74 | 277 | //Read in the Peak finder vecors from ASCI files |
168c7b3c | 278 | fIsInitialized= true; |
a51e676d | 279 | const Int_t buffersize = 256; |
168c7b3c | 280 | for(int i = 0; i < PF::MAXSTART ; i++) |
a51e676d | 281 | { |
282 | for( int j=0; j < PF::SAMPLERANGE; j++) | |
d655d7dd | 283 | { |
a51e676d | 284 | char filenameCoarse[buffersize]; |
285 | char filename[buffersize]; | |
286 | int n = j+fNsampleCut; | |
287 | double start = (double)i+0; | |
288 | ||
289 | snprintf(filename, buffersize, "%s/EMCAL/vectors-emcal/start%.1fN%dtau0.235fs10dt1.0.txt", getenv("ALICE_ROOT"), start, n); | |
290 | snprintf(filenameCoarse, buffersize, "%s/EMCAL/vectors-emcal/start%.1fN%dtau0.235fs10dt3.0.txt", getenv("ALICE_ROOT"), start, n); | |
291 | ||
292 | FILE *fp = fopen(filename, "r"); | |
293 | FILE *fpc = fopen(filenameCoarse, "r"); | |
294 | ||
295 | if( fp == 0 ) | |
d655d7dd | 296 | { |
297 | AliFatal( Form( "could not open file: %s", filename ) ); | |
298 | } | |
a51e676d | 299 | else if(fpc == 0) |
48a2e3eb | 300 | { |
301 | AliFatal( Form( "could not open file: %s", filenameCoarse ) ); | |
302 | } | |
a51e676d | 303 | else |
d655d7dd | 304 | { |
305 | for(int m = 0; m < n ; m++ ) | |
a51e676d | 306 | { |
2d35e3b8 | 307 | fscanf(fp, "%lf\t", &fPFAmpVectors[i][j][m] ); |
a51e676d | 308 | fscanf(fpc, "%lf\t", &fPFAmpVectorsCoarse[i][j][m] ); |
309 | } | |
48a2e3eb | 310 | fscanf(fp, "\n" ); |
311 | fscanf(fpc, "\n" ); | |
d655d7dd | 312 | for(int m = 0; m < n ; m++ ) |
a51e676d | 313 | { |
314 | fscanf(fp, "%lf\t", &fPFTofVectors[i][j][m] ); | |
315 | fscanf(fpc, "%lf\t", &fPFTofVectorsCoarse[i][j][m] ); | |
316 | } | |
d655d7dd | 317 | |
bab48e74 | 318 | fPeakFinderVectors->SetVector( i, j, fPFAmpVectors[i][j], fPFTofVectors[i][j], |
a51e676d | 319 | fPFAmpVectorsCoarse[i][j], fPFTofVectorsCoarse[i][j] ); |
320 | ||
d655d7dd | 321 | } |
11bcc677 | 322 | |
2d35e3b8 | 323 | if(fp) fclose (fp ); |
324 | if(fpc)fclose (fpc); | |
11bcc677 | 325 | |
d655d7dd | 326 | } |
a51e676d | 327 | } |
d655d7dd | 328 | } |
48a2e3eb | 329 | |
330 | ||
bab48e74 | 331 | void |
332 | AliCaloRawAnalyzerPeakFinder::WriteRootFile() const | |
48a2e3eb | 333 | { |
bab48e74 | 334 | // Utility function to write Peak-Finder vectors to an root file |
335 | // The output is used to create an OCDB entry. | |
bab48e74 | 336 | fPeakFinderVectors->PrintVectors(); |
bab48e74 | 337 | TFile *f = new TFile("peakfindervectors2.root", "recreate" ); |
338 | fPeakFinderVectors->Write(); | |
339 | f->Close(); | |
340 | delete f; | |
48a2e3eb | 341 | } |
168c7b3c | 342 | |
343 | ||
344 | void | |
345 | AliCaloRawAnalyzerPeakFinder::PrintVectors() | |
346 | { | |
347 | for(int i=0; i < 20; i++) | |
348 | { | |
349 | for( int j = 0; j < PF::MAXSTART; j ++ ) | |
350 | { | |
351 | for( int k=0; k < PF::SAMPLERANGE; k++ ) | |
352 | { | |
353 | cout << fPFAmpVectors[j][k][i] << "\t" ; | |
354 | } | |
355 | } | |
356 | cout << endl; | |
357 | } | |
358 | cout << __FILE__ << ":" << __LINE__ << ":.... DONE !!" << endl; | |
359 | } |