d15a28e7 |
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 | |
b2a60966 |
16 | /* $Id$ */ |
17 | |
d72dfbc3 |
18 | /* $Log: |
19 | 1 October 2000. Yuri Kharlov: |
20 | AreNeighbours() |
21 | PPSD upper layer is considered if number of layers>1 |
22 | |
23 | 18 October 2000. Yuri Kharlov: |
24 | AliPHOSClusterizerv1() |
25 | CPV clusterizing parameters added |
26 | |
27 | MakeClusters() |
28 | After first PPSD digit remove EMC digits only once |
29 | */ |
9a1398dd |
30 | //*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (SUBATECH & Kurchatov Institute) |
d15a28e7 |
31 | ////////////////////////////////////////////////////////////////////////////// |
9a1398dd |
32 | // Clusterization class. Performs clusterization (collects neighbouring active cells) and |
a4e98857 |
33 | // unfolds the clusters having several local maxima. |
34 | // Results are stored in TreeR#, branches PHOSEmcRP (EMC recPoints), |
9a1398dd |
35 | // PHOSCpvRP (CPV RecPoints) and AliPHOSClusterizer (Clusterizer with all |
f035f6ce |
36 | // parameters including input digits branch title, thresholds etc.) |
a4e98857 |
37 | // This TTask is normally called from Reconstructioner, but can as well be used in |
38 | // standalone mode. |
39 | // Use Case: |
fc12304f |
40 | // root [0] AliPHOSClusterizerv1 * cl = new AliPHOSClusterizerv1("galice.root", "recpointsname", "digitsname") |
a4e98857 |
41 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
fc12304f |
42 | // // reads gAlice from header file "galice.root", uses digits stored in the branch names "digitsname" (default = "Default") |
43 | // // and saves recpoints in branch named "recpointsname" (default = "digitsname") |
a4e98857 |
44 | // root [1] cl->ExecuteTask() |
9a1398dd |
45 | // //finds RecPoints in all events stored in galice.root |
a4e98857 |
46 | // root [2] cl->SetDigitsBranch("digits2") |
f035f6ce |
47 | // //sets another title for Digitis (input) branch |
a4e98857 |
48 | // root [3] cl->SetRecPointsBranch("recp2") |
f035f6ce |
49 | // //sets another title four output branches |
a4e98857 |
50 | // root [4] cl->SetEmcLocalMaxCut(0.03) |
9a1398dd |
51 | // //set clusterization parameters |
a4e98857 |
52 | // root [5] cl->ExecuteTask("deb all time") |
9a1398dd |
53 | // //once more finds RecPoints options are |
54 | // // deb - print number of found rec points |
55 | // // deb all - print number of found RecPoints and some their characteristics |
56 | // // time - print benchmarking results |
ed4205d8 |
57 | |
d15a28e7 |
58 | // --- ROOT system --- |
59 | |
9a1398dd |
60 | #include "TROOT.h" |
61 | #include "TFile.h" |
62 | #include "TFolder.h" |
d15a28e7 |
63 | #include "TMath.h" |
9a1398dd |
64 | #include "TMinuit.h" |
65 | #include "TTree.h" |
66 | #include "TSystem.h" |
67 | #include "TBenchmark.h" |
d15a28e7 |
68 | |
69 | // --- Standard library --- |
70 | |
d15a28e7 |
71 | // --- AliRoot header files --- |
c2cd5471 |
72 | #include "AliPHOSCalibrationDB.h" |
d15a28e7 |
73 | #include "AliPHOSClusterizerv1.h" |
9a1398dd |
74 | #include "AliPHOSCpvRecPoint.h" |
d15a28e7 |
75 | #include "AliPHOSDigit.h" |
9a1398dd |
76 | #include "AliPHOSDigitizer.h" |
d15a28e7 |
77 | #include "AliPHOSEmcRecPoint.h" |
9a1398dd |
78 | #include "AliPHOS.h" |
7b7c1533 |
79 | #include "AliPHOSGetter.h" |
9a1398dd |
80 | #include "AliRun.h" |
d15a28e7 |
81 | |
82 | ClassImp(AliPHOSClusterizerv1) |
f035f6ce |
83 | |
d15a28e7 |
84 | //____________________________________________________________________________ |
7b7c1533 |
85 | AliPHOSClusterizerv1::AliPHOSClusterizerv1() : AliPHOSClusterizer() |
d15a28e7 |
86 | { |
f035f6ce |
87 | // default ctor (to be used mainly by Streamer) |
f035f6ce |
88 | |
8d0f3f77 |
89 | InitParameters() ; |
92f521a9 |
90 | fDefaultInit = kTRUE ; |
9a1398dd |
91 | } |
7b7c1533 |
92 | |
9a1398dd |
93 | //____________________________________________________________________________ |
fbf811ec |
94 | AliPHOSClusterizerv1::AliPHOSClusterizerv1(const char* headerFile,const char* name, const Bool_t toSplit) |
95 | :AliPHOSClusterizer(headerFile, name, toSplit) |
9a1398dd |
96 | { |
a4e98857 |
97 | // ctor with the indication of the file where header Tree and digits Tree are stored |
9a1398dd |
98 | |
8d0f3f77 |
99 | InitParameters() ; |
2bd5457f |
100 | Init() ; |
92f521a9 |
101 | fDefaultInit = kFALSE ; |
9a1398dd |
102 | |
103 | } |
fc12304f |
104 | |
9688c1dd |
105 | //____________________________________________________________________________ |
106 | AliPHOSClusterizerv1::~AliPHOSClusterizerv1() |
107 | { |
8d0f3f77 |
108 | // dtor |
548f0134 |
109 | fSplitFile = 0 ; |
8d0f3f77 |
110 | |
9688c1dd |
111 | } |
fc12304f |
112 | |
113 | //____________________________________________________________________________ |
114 | const TString AliPHOSClusterizerv1::BranchName() const |
115 | { |
116 | TString branchName(GetName() ) ; |
117 | branchName.Remove(branchName.Index(Version())-1) ; |
118 | return branchName ; |
119 | } |
120 | |
9a1398dd |
121 | //____________________________________________________________________________ |
3758d9fc |
122 | Float_t AliPHOSClusterizerv1::Calibrate(Int_t amp, Int_t absId) const |
fbf811ec |
123 | { //To be replased later by the method, reading individual parameters from the database |
c2cd5471 |
124 | if(fCalibrationDB) |
125 | return fCalibrationDB->Calibrate(amp,absId) ; |
126 | else{ //simulation |
127 | if(absId <= fEmcCrystals) //calibrate as EMC |
128 | return fADCpedestalEmc + amp*fADCchanelEmc ; |
129 | else //calibrate as CPV |
130 | return fADCpedestalCpv+ amp*fADCchanelCpv ; |
131 | } |
3758d9fc |
132 | } |
548f0134 |
133 | |
3758d9fc |
134 | //____________________________________________________________________________ |
a4e98857 |
135 | void AliPHOSClusterizerv1::Exec(Option_t * option) |
136 | { |
7b7c1533 |
137 | // Steering method |
9a1398dd |
138 | |
7b7c1533 |
139 | if( strcmp(GetName(), "")== 0 ) |
140 | Init() ; |
9a1398dd |
141 | |
142 | if(strstr(option,"tim")) |
7d493c2c |
143 | gBenchmark->Start("PHOSClusterizer"); |
9a1398dd |
144 | |
7b7c1533 |
145 | if(strstr(option,"print")) |
146 | Print("") ; |
147 | |
127e12ac |
148 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
fbf811ec |
149 | if(gime->BranchExists("RecPoints")) |
150 | return ; |
151 | Int_t nevents = gime->MaxEvent() ; |
7b7c1533 |
152 | Int_t ievent ; |
fbf811ec |
153 | |
7b7c1533 |
154 | for(ievent = 0; ievent < nevents; ievent++){ |
fbf811ec |
155 | |
156 | gime->Event(ievent,"D") ; |
157 | |
158 | if(ievent == 0) |
159 | GetCalibrationParameters() ; |
160 | |
548f0134 |
161 | fNumberOfEmcClusters = fNumberOfCpvClusters = 0 ; |
162 | |
9a1398dd |
163 | MakeClusters() ; |
164 | |
fc12304f |
165 | if(fToUnfold) |
166 | MakeUnfolding() ; |
7b7c1533 |
167 | |
168 | WriteRecPoints(ievent) ; |
169 | |
94de8339 |
170 | if(strstr(option,"deb")) |
171 | PrintRecPoints(option) ; |
172 | |
173 | //increment the total number of digits per run |
fbf811ec |
174 | fRecPointsInRun += gime->EmcRecPoints()->GetEntriesFast() ; |
175 | fRecPointsInRun += gime->CpvRecPoints()->GetEntriesFast() ; |
94de8339 |
176 | } |
9a1398dd |
177 | |
178 | if(strstr(option,"tim")){ |
179 | gBenchmark->Stop("PHOSClusterizer"); |
21cd0c07 |
180 | Info("Exec", " took %f seconds for Clusterizing %f seconds per event \n", |
181 | gBenchmark->GetCpuTime("PHOSClusterizer"), |
182 | gBenchmark->GetCpuTime("PHOSClusterizer")/nevents ) ; |
9a1398dd |
183 | } |
9a1398dd |
184 | } |
185 | |
186 | //____________________________________________________________________________ |
a0636361 |
187 | Bool_t AliPHOSClusterizerv1::FindFit(AliPHOSEmcRecPoint * emcRP, AliPHOSDigit ** maxAt, Float_t * maxAtEnergy, |
d1de15f5 |
188 | Int_t nPar, Float_t * fitparameters) const |
9a1398dd |
189 | { |
190 | // Calls TMinuit to fit the energy distribution of a cluster with several maxima |
a4e98857 |
191 | // The initial values for fitting procedure are set equal to the positions of local maxima. |
f035f6ce |
192 | // Cluster will be fitted as a superposition of nPar/3 electromagnetic showers |
9a1398dd |
193 | |
7b7c1533 |
194 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
fbf811ec |
195 | TClonesArray * digits = gime->Digits() ; |
7b7c1533 |
196 | |
197 | |
9a1398dd |
198 | gMinuit->mncler(); // Reset Minuit's list of paramters |
199 | gMinuit->SetPrintLevel(-1) ; // No Printout |
200 | gMinuit->SetFCN(AliPHOSClusterizerv1::UnfoldingChiSquare) ; |
201 | // To set the address of the minimization function |
202 | |
203 | TList * toMinuit = new TList(); |
204 | toMinuit->AddAt(emcRP,0) ; |
7b7c1533 |
205 | toMinuit->AddAt(digits,1) ; |
9a1398dd |
206 | |
207 | gMinuit->SetObjectFit(toMinuit) ; // To tranfer pointer to UnfoldingChiSquare |
208 | |
209 | // filling initial values for fit parameters |
210 | AliPHOSDigit * digit ; |
211 | |
212 | Int_t ierflg = 0; |
213 | Int_t index = 0 ; |
214 | Int_t nDigits = (Int_t) nPar / 3 ; |
215 | |
216 | Int_t iDigit ; |
217 | |
7b7c1533 |
218 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; |
9a1398dd |
219 | |
220 | for(iDigit = 0; iDigit < nDigits; iDigit++){ |
a0636361 |
221 | digit = maxAt[iDigit]; |
9a1398dd |
222 | |
223 | Int_t relid[4] ; |
7b7c1533 |
224 | Float_t x = 0.; |
225 | Float_t z = 0.; |
226 | geom->AbsToRelNumbering(digit->GetId(), relid) ; |
227 | geom->RelPosInModule(relid, x, z) ; |
9a1398dd |
228 | |
229 | Float_t energy = maxAtEnergy[iDigit] ; |
230 | |
231 | gMinuit->mnparm(index, "x", x, 0.1, 0, 0, ierflg) ; |
232 | index++ ; |
233 | if(ierflg != 0){ |
21cd0c07 |
234 | Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : x = %f\n", x ) ; |
9a1398dd |
235 | return kFALSE; |
236 | } |
237 | gMinuit->mnparm(index, "z", z, 0.1, 0, 0, ierflg) ; |
238 | index++ ; |
239 | if(ierflg != 0){ |
21cd0c07 |
240 | Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : z =%f\n", z ) ; |
9a1398dd |
241 | return kFALSE; |
242 | } |
243 | gMinuit->mnparm(index, "Energy", energy , 0.05*energy, 0., 4.*energy, ierflg) ; |
244 | index++ ; |
245 | if(ierflg != 0){ |
21cd0c07 |
246 | Warning("FindFit", "PHOS Unfolding unable to set initial value for fit procedure : energy = %f\n", energy ) ; |
9a1398dd |
247 | return kFALSE; |
248 | } |
249 | } |
250 | |
251 | Double_t p0 = 0.1 ; // "Tolerance" Evaluation stops when EDM = 0.0001*p0 ; The number of function call slightly |
252 | // depends on it. |
253 | Double_t p1 = 1.0 ; |
254 | Double_t p2 = 0.0 ; |
255 | |
256 | gMinuit->mnexcm("SET STR", &p2, 0, ierflg) ; // force TMinuit to reduce function calls |
257 | gMinuit->mnexcm("SET GRA", &p1, 1, ierflg) ; // force TMinuit to use my gradient |
258 | gMinuit->SetMaxIterations(5); |
259 | gMinuit->mnexcm("SET NOW", &p2 , 0, ierflg) ; // No Warnings |
260 | |
261 | gMinuit->mnexcm("MIGRAD", &p0, 0, ierflg) ; // minimize |
262 | |
263 | if(ierflg == 4){ // Minimum not found |
21cd0c07 |
264 | Warning("FindFit", "PHOS Unfolding fit not converged, cluster abandoned\n" ); |
9a1398dd |
265 | return kFALSE ; |
266 | } |
267 | for(index = 0; index < nPar; index++){ |
268 | Double_t err ; |
269 | Double_t val ; |
270 | gMinuit->GetParameter(index, val, err) ; // Returns value and error of parameter index |
271 | fitparameters[index] = val ; |
272 | } |
273 | |
274 | delete toMinuit ; |
275 | return kTRUE; |
c3c187e5 |
276 | |
d15a28e7 |
277 | } |
278 | |
3758d9fc |
279 | //____________________________________________________________________________ |
280 | void AliPHOSClusterizerv1::GetCalibrationParameters() |
281 | { |
282 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
fbf811ec |
283 | |
c2cd5471 |
284 | const TTask * task = gime->Digitizer(BranchName()) ; |
285 | if(strcmp(task->IsA()->GetName(),"AliPHOSDigitizer")==0){ |
286 | const AliPHOSDigitizer * dig = static_cast<const AliPHOSDigitizer *>(task) ; |
287 | |
288 | fADCchanelEmc = dig->GetEMCchannel() ; |
289 | fADCpedestalEmc = dig->GetEMCpedestal(); |
290 | |
291 | fADCchanelCpv = dig->GetCPVchannel() ; |
292 | fADCpedestalCpv = dig->GetCPVpedestal() ; |
293 | } |
294 | else{ |
295 | fCalibrationDB = gime->CalibrationDB(); |
296 | } |
3758d9fc |
297 | } |
548f0134 |
298 | |
d15a28e7 |
299 | //____________________________________________________________________________ |
a4e98857 |
300 | void AliPHOSClusterizerv1::Init() |
301 | { |
2bd5457f |
302 | // Make all memory allocations which can not be done in default constructor. |
303 | // Attach the Clusterizer task to the list of PHOS tasks |
7b7c1533 |
304 | |
305 | if ( strcmp(GetTitle(), "") == 0 ) |
306 | SetTitle("galice.root") ; |
2bd5457f |
307 | |
9688c1dd |
308 | TString branchname = GetName() ; |
309 | branchname.Remove(branchname.Index(Version())-1) ; |
9a1398dd |
310 | |
fbf811ec |
311 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance(GetTitle(),branchname.Data(), fToSplit ) ; |
7b7c1533 |
312 | if ( gime == 0 ) { |
21cd0c07 |
313 | Error("Init", "Could not obtain the Getter object !") ; |
7b7c1533 |
314 | return ; |
315 | } |
fbf811ec |
316 | |
317 | fSplitFile = 0 ; |
318 | if(fToSplit){ |
319 | // construct the name of the file as /path/EMCAL.SDigits.root |
320 | //First - extract full path if necessary |
321 | TString fileName(GetTitle()) ; |
322 | Ssiz_t islash = fileName.Last('/') ; |
323 | if(islash<fileName.Length()) |
324 | fileName.Remove(islash+1,fileName.Length()) ; |
325 | else |
326 | fileName="" ; |
327 | // Next - append the file name |
328 | fileName+="PHOS.RecData." ; |
329 | if((strcmp(branchname.Data(),"Default")!=0)&&(strcmp(branchname.Data(),"")!=0)){ |
330 | fileName+=branchname ; |
331 | fileName+="." ; |
332 | } |
333 | fileName+="root" ; |
334 | // Finally - check if the file already opened or open the file |
335 | fSplitFile = static_cast<TFile*>(gROOT->GetFile(fileName.Data())); |
336 | if(!fSplitFile) |
337 | fSplitFile = TFile::Open(fileName.Data(),"update") ; |
338 | } |
339 | |
340 | |
7b7c1533 |
341 | |
3758d9fc |
342 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; |
343 | fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ; |
344 | |
7b7c1533 |
345 | if(!gMinuit) |
346 | gMinuit = new TMinuit(100) ; |
fbf811ec |
347 | |
127e12ac |
348 | gime->PostClusterizer(this) ; |
fc12304f |
349 | gime->PostRecPoints(branchname) ; |
7b7c1533 |
350 | |
9a1398dd |
351 | } |
7b7c1533 |
352 | |
8d0f3f77 |
353 | //____________________________________________________________________________ |
354 | void AliPHOSClusterizerv1::InitParameters() |
355 | { |
356 | |
357 | fNumberOfCpvClusters = 0 ; |
358 | fNumberOfEmcClusters = 0 ; |
359 | |
360 | fCpvClusteringThreshold = 0.0; |
361 | fEmcClusteringThreshold = 0.2; |
362 | |
363 | fEmcLocMaxCut = 0.03 ; |
364 | fCpvLocMaxCut = 0.03 ; |
365 | |
366 | fW0 = 4.5 ; |
367 | fW0CPV = 4.0 ; |
368 | |
369 | fEmcTimeGate = 1.e-8 ; |
370 | |
371 | fToUnfold = kTRUE ; |
092b50ba |
372 | |
373 | fPurifyThreshold = 0.012 ; |
374 | |
8d0f3f77 |
375 | TString clusterizerName( GetName()) ; |
376 | if (clusterizerName.IsNull() ) |
377 | clusterizerName = "Default" ; |
378 | clusterizerName.Append(":") ; |
379 | clusterizerName.Append(Version()) ; |
380 | SetName(clusterizerName) ; |
381 | fRecPointsInRun = 0 ; |
c2cd5471 |
382 | fCalibrationDB = 0 ; |
383 | |
8d0f3f77 |
384 | |
385 | } |
386 | |
9a1398dd |
387 | //____________________________________________________________________________ |
388 | Int_t AliPHOSClusterizerv1::AreNeighbours(AliPHOSDigit * d1, AliPHOSDigit * d2)const |
d15a28e7 |
389 | { |
b2a60966 |
390 | // Gives the neighbourness of two digits = 0 are not neighbour but continue searching |
391 | // = 1 are neighbour |
392 | // = 2 are not neighbour but do not continue searching |
a4e98857 |
393 | // neighbours are defined as digits having at least a common vertex |
b2a60966 |
394 | // The order of d1 and d2 is important: first (d1) should be a digit already in a cluster |
395 | // which is compared to a digit (d2) not yet in a cluster |
396 | |
7b7c1533 |
397 | const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ; |
398 | |
d15a28e7 |
399 | Int_t rv = 0 ; |
400 | |
d15a28e7 |
401 | Int_t relid1[4] ; |
7b7c1533 |
402 | geom->AbsToRelNumbering(d1->GetId(), relid1) ; |
d15a28e7 |
403 | |
404 | Int_t relid2[4] ; |
7b7c1533 |
405 | geom->AbsToRelNumbering(d2->GetId(), relid2) ; |
d15a28e7 |
406 | |
9688c1dd |
407 | if ( (relid1[0] == relid2[0]) && (relid1[1]==relid2[1]) ) { // inside the same PHOS module |
92862013 |
408 | Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ; |
409 | Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ; |
d15a28e7 |
410 | |
92862013 |
411 | if (( coldiff <= 1 ) && ( rowdiff <= 1 )){ |
9688c1dd |
412 | if((relid1[1] != 0) || (TMath::Abs(d1->GetTime() - d2->GetTime() ) < fEmcTimeGate)) |
d15a28e7 |
413 | rv = 1 ; |
414 | } |
415 | else { |
416 | if((relid2[2] > relid1[2]) && (relid2[3] > relid1[3]+1)) |
417 | rv = 2; // Difference in row numbers is too large to look further |
418 | } |
419 | |
420 | } |
421 | else { |
422 | |
9688c1dd |
423 | if( (relid1[0] < relid2[0]) || (relid1[1] != relid2[1]) ) |
d15a28e7 |
424 | rv=2 ; |
425 | |
426 | } |
d72dfbc3 |
427 | |
d15a28e7 |
428 | return rv ; |
429 | } |
430 | |
d15a28e7 |
431 | |
432 | //____________________________________________________________________________ |
9a1398dd |
433 | Bool_t AliPHOSClusterizerv1::IsInEmc(AliPHOSDigit * digit) const |
d15a28e7 |
434 | { |
b2a60966 |
435 | // Tells if (true) or not (false) the digit is in a PHOS-EMC module |
436 | |
9f616d61 |
437 | Bool_t rv = kFALSE ; |
7b7c1533 |
438 | const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ; |
d15a28e7 |
439 | |
2b629790 |
440 | Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ(); |
d15a28e7 |
441 | |
2b629790 |
442 | if(digit->GetId() <= nEMC ) rv = kTRUE; |
ed4205d8 |
443 | |
444 | return rv ; |
445 | } |
446 | |
ed4205d8 |
447 | //____________________________________________________________________________ |
9a1398dd |
448 | Bool_t AliPHOSClusterizerv1::IsInCpv(AliPHOSDigit * digit) const |
ed4205d8 |
449 | { |
fad3e5b9 |
450 | // Tells if (true) or not (false) the digit is in a PHOS-CPV module |
ed4205d8 |
451 | |
452 | Bool_t rv = kFALSE ; |
7b7c1533 |
453 | const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ; |
ed4205d8 |
454 | |
2b629790 |
455 | Int_t nEMC = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ(); |
ed4205d8 |
456 | |
2b629790 |
457 | if(digit->GetId() > nEMC ) rv = kTRUE; |
d15a28e7 |
458 | |
459 | return rv ; |
460 | } |
9a1398dd |
461 | |
462 | //____________________________________________________________________________ |
7b7c1533 |
463 | void AliPHOSClusterizerv1::WriteRecPoints(Int_t event) |
a4e98857 |
464 | { |
7b7c1533 |
465 | |
466 | // Creates new branches with given title |
a4e98857 |
467 | // fills and writes into TreeR. |
fbf811ec |
468 | |
469 | |
7b7c1533 |
470 | AliPHOSGetter *gime = AliPHOSGetter::GetInstance() ; |
fbf811ec |
471 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
472 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; |
473 | TClonesArray * digits = gime->Digits() ; |
474 | TTree * treeR ; |
475 | |
476 | if(fToSplit){ |
477 | if(!fSplitFile) |
478 | return ; |
479 | fSplitFile->cd() ; |
480 | TString name("TreeR") ; |
481 | name += event ; |
482 | treeR = dynamic_cast<TTree*>(fSplitFile->Get(name)); |
483 | } |
484 | else{ |
485 | treeR = gAlice->TreeR(); |
486 | } |
487 | |
488 | if(!treeR){ |
c2cd5471 |
489 | if(fSplitFile) |
490 | gAlice->MakeTree("R", fSplitFile); |
491 | else |
492 | gAlice->MakeTree("R", gROOT->GetFile(GetTitle())); |
fbf811ec |
493 | treeR = gAlice->TreeR() ; |
494 | } |
495 | |
9a1398dd |
496 | Int_t index ; |
01a599c9 |
497 | //Evaluate position, dispersion and other RecPoint properties... |
092b50ba |
498 | for(index = 0; index < emcRecPoints->GetEntries(); index++){ |
499 | AliPHOSEmcRecPoint * emcrp = static_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(index)) ; |
500 | emcrp->Purify(fPurifyThreshold) ; |
501 | if(emcrp->GetMultiplicity()) |
502 | emcrp->EvalAll(fW0,digits) ; |
503 | else |
504 | emcRecPoints->Remove(emcrp) ; |
505 | } |
506 | |
507 | emcRecPoints->Compress() ; |
7b7c1533 |
508 | emcRecPoints->Sort() ; |
7b7c1533 |
509 | for(index = 0; index < emcRecPoints->GetEntries(); index++) |
510 | ((AliPHOSEmcRecPoint *)emcRecPoints->At(index))->SetIndexInList(index) ; |
fbf811ec |
511 | |
7b7c1533 |
512 | emcRecPoints->Expand(emcRecPoints->GetEntriesFast()) ; |
fbf811ec |
513 | |
9a1398dd |
514 | //Now the same for CPV |
7b7c1533 |
515 | for(index = 0; index < cpvRecPoints->GetEntries(); index++) |
516 | ((AliPHOSRecPoint *)cpvRecPoints->At(index))->EvalAll(fW0CPV,digits) ; |
fbf811ec |
517 | |
7b7c1533 |
518 | cpvRecPoints->Sort() ; |
fbf811ec |
519 | |
7b7c1533 |
520 | for(index = 0; index < cpvRecPoints->GetEntries(); index++) |
521 | ((AliPHOSRecPoint *)cpvRecPoints->At(index))->SetIndexInList(index) ; |
fbf811ec |
522 | |
7b7c1533 |
523 | cpvRecPoints->Expand(cpvRecPoints->GetEntriesFast()) ; |
9a1398dd |
524 | |
9a1398dd |
525 | Int_t bufferSize = 32000 ; |
526 | Int_t splitlevel = 0 ; |
8d0f3f77 |
527 | |
01a599c9 |
528 | //First EMC |
8d0f3f77 |
529 | TBranch * emcBranch = treeR->Branch("PHOSEmcRP","TObjArray",&emcRecPoints,bufferSize,splitlevel); |
fc12304f |
530 | emcBranch->SetTitle(BranchName()); |
9a1398dd |
531 | |
532 | //Now CPV branch |
8d0f3f77 |
533 | TBranch * cpvBranch = treeR->Branch("PHOSCpvRP","TObjArray",&cpvRecPoints,bufferSize,splitlevel); |
fc12304f |
534 | cpvBranch->SetTitle(BranchName()); |
9a1398dd |
535 | |
536 | //And Finally clusterizer branch |
8581019b |
537 | AliPHOSClusterizerv1 * cl = this ; |
8d0f3f77 |
538 | TBranch * clusterizerBranch = treeR->Branch("AliPHOSClusterizer","AliPHOSClusterizerv1", |
9a1398dd |
539 | &cl,bufferSize,splitlevel); |
fc12304f |
540 | clusterizerBranch->SetTitle(BranchName()); |
8d0f3f77 |
541 | |
01a599c9 |
542 | emcBranch ->Fill() ; |
543 | cpvBranch ->Fill() ; |
761e34c0 |
544 | clusterizerBranch->Fill() ; |
eec3ac52 |
545 | |
548f0134 |
546 | treeR->AutoSave() ; |
fbf811ec |
547 | if(gAlice->TreeR()!=treeR) |
548 | treeR->Delete(); |
9a1398dd |
549 | } |
550 | |
551 | //____________________________________________________________________________ |
552 | void AliPHOSClusterizerv1::MakeClusters() |
553 | { |
554 | // Steering method to construct the clusters stored in a list of Reconstructed Points |
555 | // A cluster is defined as a list of neighbour digits |
d15a28e7 |
556 | |
7b7c1533 |
557 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
558 | |
fc12304f |
559 | TObjArray * emcRecPoints = gime->EmcRecPoints(BranchName()) ; |
560 | TObjArray * cpvRecPoints = gime->CpvRecPoints(BranchName()) ; |
7d493c2c |
561 | emcRecPoints->Delete() ; |
562 | cpvRecPoints->Delete() ; |
7b7c1533 |
563 | |
fbf811ec |
564 | TClonesArray * digits = gime->Digits() ; |
fc12304f |
565 | if ( !digits ) { |
f1611b7c |
566 | Fatal("MakeClusters", "Digits with name %s not found !", BranchName().Data() ) ; |
fc12304f |
567 | } |
7b7c1533 |
568 | TClonesArray * digitsC = (TClonesArray*)digits->Clone() ; |
569 | |
570 | |
d15a28e7 |
571 | // Clusterization starts |
9a1398dd |
572 | |
7b7c1533 |
573 | TIter nextdigit(digitsC) ; |
d15a28e7 |
574 | AliPHOSDigit * digit ; |
92862013 |
575 | Bool_t notremoved = kTRUE ; |
6ad0bfa0 |
576 | |
7b7c1533 |
577 | while ( (digit = (AliPHOSDigit *)nextdigit()) ) { // scan over the list of digitsC |
9a1398dd |
578 | AliPHOSRecPoint * clu = 0 ; |
c161df70 |
579 | |
d1de15f5 |
580 | TArrayI clusterdigitslist(1500) ; |
d15a28e7 |
581 | Int_t index ; |
f2bc1b87 |
582 | |
3758d9fc |
583 | if (( IsInEmc (digit) && Calibrate(digit->GetAmp(),digit->GetId()) > fEmcClusteringThreshold ) || |
584 | ( IsInCpv (digit) && Calibrate(digit->GetAmp(),digit->GetId()) > fCpvClusteringThreshold ) ) { |
d15a28e7 |
585 | Int_t iDigitInCluster = 0 ; |
7b7c1533 |
586 | |
6ad0bfa0 |
587 | if ( IsInEmc(digit) ) { |
83974468 |
588 | // start a new EMC RecPoint |
7b7c1533 |
589 | if(fNumberOfEmcClusters >= emcRecPoints->GetSize()) |
590 | emcRecPoints->Expand(2*fNumberOfEmcClusters+1) ; |
591 | |
73a68ccb |
592 | emcRecPoints->AddAt(new AliPHOSEmcRecPoint(""), fNumberOfEmcClusters) ; |
7b7c1533 |
593 | clu = (AliPHOSEmcRecPoint *) emcRecPoints->At(fNumberOfEmcClusters) ; |
7f5d510c |
594 | fNumberOfEmcClusters++ ; |
3758d9fc |
595 | clu->AddDigit(*digit, Calibrate(digit->GetAmp(),digit->GetId())) ; |
9a1398dd |
596 | clusterdigitslist[iDigitInCluster] = digit->GetIndexInList() ; |
9f616d61 |
597 | iDigitInCluster++ ; |
7b7c1533 |
598 | digitsC->Remove(digit) ; |
ca77b032 |
599 | |
d72dfbc3 |
600 | } else { |
83974468 |
601 | |
9688c1dd |
602 | // start a new CPV cluster |
7b7c1533 |
603 | if(fNumberOfCpvClusters >= cpvRecPoints->GetSize()) |
604 | cpvRecPoints->Expand(2*fNumberOfCpvClusters+1); |
605 | |
73a68ccb |
606 | cpvRecPoints->AddAt(new AliPHOSCpvRecPoint(""), fNumberOfCpvClusters) ; |
fad3e5b9 |
607 | |
9688c1dd |
608 | clu = (AliPHOSCpvRecPoint *) cpvRecPoints->At(fNumberOfCpvClusters) ; |
7b7c1533 |
609 | fNumberOfCpvClusters++ ; |
3758d9fc |
610 | clu->AddDigit(*digit, Calibrate(digit->GetAmp(),digit->GetId()) ) ; |
9a1398dd |
611 | clusterdigitslist[iDigitInCluster] = digit->GetIndexInList() ; |
9f616d61 |
612 | iDigitInCluster++ ; |
7b7c1533 |
613 | digitsC->Remove(digit) ; |
d15a28e7 |
614 | nextdigit.Reset() ; |
615 | |
7b7c1533 |
616 | // Here we remove remaining EMC digits, which cannot make a cluster |
fad3e5b9 |
617 | |
92862013 |
618 | if( notremoved ) { |
9f616d61 |
619 | while( ( digit = (AliPHOSDigit *)nextdigit() ) ) { |
9f616d61 |
620 | if( IsInEmc(digit) ) |
7b7c1533 |
621 | digitsC->Remove(digit) ; |
d15a28e7 |
622 | else |
623 | break ; |
d72dfbc3 |
624 | } |
625 | notremoved = kFALSE ; |
626 | } |
d15a28e7 |
627 | |
628 | } // else |
629 | |
630 | nextdigit.Reset() ; |
fad3e5b9 |
631 | |
d15a28e7 |
632 | AliPHOSDigit * digitN ; |
633 | index = 0 ; |
9f616d61 |
634 | while (index < iDigitInCluster){ // scan over digits already in cluster |
7b7c1533 |
635 | digit = (AliPHOSDigit*)digits->At(clusterdigitslist[index]) ; |
9f616d61 |
636 | index++ ; |
d15a28e7 |
637 | while ( (digitN = (AliPHOSDigit *)nextdigit()) ) { // scan over the reduced list of digits |
d72dfbc3 |
638 | Int_t ineb = AreNeighbours(digit, digitN); // call (digit,digitN) in THAT oder !!!!! |
d15a28e7 |
639 | switch (ineb ) { |
9f616d61 |
640 | case 0 : // not a neighbour |
d72dfbc3 |
641 | break ; |
9f616d61 |
642 | case 1 : // are neighbours |
3758d9fc |
643 | clu->AddDigit(*digitN, Calibrate( digitN->GetAmp(), digitN->GetId() ) ) ; |
9a1398dd |
644 | clusterdigitslist[iDigitInCluster] = digitN->GetIndexInList() ; |
9f616d61 |
645 | iDigitInCluster++ ; |
7b7c1533 |
646 | digitsC->Remove(digitN) ; |
d15a28e7 |
647 | break ; |
9f616d61 |
648 | case 2 : // too far from each other |
d15a28e7 |
649 | goto endofloop; |
650 | } // switch |
651 | |
652 | } // while digitN |
fad3e5b9 |
653 | |
d15a28e7 |
654 | endofloop: ; |
655 | nextdigit.Reset() ; |
656 | |
657 | } // loop over cluster |
ad8cfaf4 |
658 | |
ad8cfaf4 |
659 | } // energy theshold |
ad8cfaf4 |
660 | |
31aa6d6c |
661 | |
d15a28e7 |
662 | } // while digit |
663 | |
7b7c1533 |
664 | delete digitsC ; |
9688c1dd |
665 | |
9a1398dd |
666 | } |
667 | |
668 | //____________________________________________________________________________ |
a4e98857 |
669 | void AliPHOSClusterizerv1::MakeUnfolding() |
670 | { |
671 | // Unfolds clusters using the shape of an ElectroMagnetic shower |
9688c1dd |
672 | // Performs unfolding of all EMC/CPV clusters |
9a1398dd |
673 | |
7b7c1533 |
674 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
675 | |
fc12304f |
676 | |
7b7c1533 |
677 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; |
fc12304f |
678 | TObjArray * emcRecPoints = gime->EmcRecPoints(BranchName()) ; |
679 | TObjArray * cpvRecPoints = gime->CpvRecPoints(BranchName()) ; |
fbf811ec |
680 | TClonesArray * digits = gime->Digits() ; |
7b7c1533 |
681 | |
a4e98857 |
682 | // Unfold first EMC clusters |
9a1398dd |
683 | if(fNumberOfEmcClusters > 0){ |
684 | |
7b7c1533 |
685 | Int_t nModulesToUnfold = geom->GetNModules() ; |
9a1398dd |
686 | |
687 | Int_t numberofNotUnfolded = fNumberOfEmcClusters ; |
688 | Int_t index ; |
689 | for(index = 0 ; index < numberofNotUnfolded ; index++){ |
690 | |
7b7c1533 |
691 | AliPHOSEmcRecPoint * emcRecPoint = (AliPHOSEmcRecPoint *) emcRecPoints->At(index) ; |
9a1398dd |
692 | if(emcRecPoint->GetPHOSMod()> nModulesToUnfold) |
693 | break ; |
694 | |
695 | Int_t nMultipl = emcRecPoint->GetMultiplicity() ; |
a0636361 |
696 | AliPHOSDigit ** maxAt = new AliPHOSDigit*[nMultipl] ; |
9a1398dd |
697 | Float_t * maxAtEnergy = new Float_t[nMultipl] ; |
7b7c1533 |
698 | Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fEmcLocMaxCut,digits) ; |
9a1398dd |
699 | |
700 | if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0 |
701 | UnfoldCluster(emcRecPoint, nMax, maxAt, maxAtEnergy) ; |
7b7c1533 |
702 | emcRecPoints->Remove(emcRecPoint); |
703 | emcRecPoints->Compress() ; |
9a1398dd |
704 | index-- ; |
705 | fNumberOfEmcClusters -- ; |
706 | numberofNotUnfolded-- ; |
707 | } |
708 | |
709 | delete[] maxAt ; |
710 | delete[] maxAtEnergy ; |
711 | } |
712 | } |
a4e98857 |
713 | // Unfolding of EMC clusters finished |
9a1398dd |
714 | |
715 | |
a4e98857 |
716 | // Unfold now CPV clusters |
9a1398dd |
717 | if(fNumberOfCpvClusters > 0){ |
718 | |
9688c1dd |
719 | Int_t nModulesToUnfold = geom->GetNModules() ; |
9a1398dd |
720 | |
721 | Int_t numberofCpvNotUnfolded = fNumberOfCpvClusters ; |
722 | Int_t index ; |
723 | for(index = 0 ; index < numberofCpvNotUnfolded ; index++){ |
724 | |
7b7c1533 |
725 | AliPHOSRecPoint * recPoint = (AliPHOSRecPoint *) cpvRecPoints->At(index) ; |
9a1398dd |
726 | |
727 | if(recPoint->GetPHOSMod()> nModulesToUnfold) |
728 | break ; |
729 | |
730 | AliPHOSEmcRecPoint * emcRecPoint = (AliPHOSEmcRecPoint*) recPoint ; |
731 | |
732 | Int_t nMultipl = emcRecPoint->GetMultiplicity() ; |
a0636361 |
733 | AliPHOSDigit ** maxAt = new AliPHOSDigit*[nMultipl] ; |
9a1398dd |
734 | Float_t * maxAtEnergy = new Float_t[nMultipl] ; |
7b7c1533 |
735 | Int_t nMax = emcRecPoint->GetNumberOfLocalMax(maxAt, maxAtEnergy,fCpvLocMaxCut,digits) ; |
9a1398dd |
736 | |
737 | if( nMax > 1 ) { // if cluster is very flat (no pronounced maximum) then nMax = 0 |
738 | UnfoldCluster(emcRecPoint, nMax, maxAt, maxAtEnergy) ; |
7b7c1533 |
739 | cpvRecPoints->Remove(emcRecPoint); |
740 | cpvRecPoints->Compress() ; |
9a1398dd |
741 | index-- ; |
742 | numberofCpvNotUnfolded-- ; |
743 | fNumberOfCpvClusters-- ; |
744 | } |
745 | |
746 | delete[] maxAt ; |
747 | delete[] maxAtEnergy ; |
748 | } |
749 | } |
750 | //Unfolding of Cpv clusters finished |
751 | |
752 | } |
753 | |
9a1398dd |
754 | //____________________________________________________________________________ |
755 | Double_t AliPHOSClusterizerv1::ShowerShape(Double_t r) |
756 | { |
757 | // Shape of the shower (see PHOS TDR) |
a4e98857 |
758 | // If you change this function, change also the gradient evaluation in ChiSquare() |
9a1398dd |
759 | |
760 | Double_t r4 = r*r*r*r ; |
761 | Double_t r295 = TMath::Power(r, 2.95) ; |
762 | Double_t shape = TMath::Exp( -r4 * (1. / (2.32 + 0.26 * r4) + 0.0316 / (1 + 0.0652 * r295) ) ) ; |
763 | return shape ; |
764 | } |
765 | |
766 | //____________________________________________________________________________ |
767 | void AliPHOSClusterizerv1::UnfoldCluster(AliPHOSEmcRecPoint * iniEmc, |
768 | Int_t nMax, |
a0636361 |
769 | AliPHOSDigit ** maxAt, |
9a1398dd |
770 | Float_t * maxAtEnergy) |
771 | { |
772 | // Performs the unfolding of a cluster with nMax overlapping showers |
773 | |
7b7c1533 |
774 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
fc12304f |
775 | |
7b7c1533 |
776 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; |
fbf811ec |
777 | const TClonesArray * digits = gime->Digits() ; |
778 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
779 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; |
7b7c1533 |
780 | |
9a1398dd |
781 | Int_t nPar = 3 * nMax ; |
782 | Float_t * fitparameters = new Float_t[nPar] ; |
783 | |
784 | Bool_t rv = FindFit(iniEmc, maxAt, maxAtEnergy, nPar, fitparameters) ; |
785 | if( !rv ) { |
786 | // Fit failed, return and remove cluster |
787 | delete[] fitparameters ; |
788 | return ; |
789 | } |
790 | |
791 | // create ufolded rec points and fill them with new energy lists |
792 | // First calculate energy deposited in each sell in accordance with fit (without fluctuations): efit[] |
793 | // and later correct this number in acordance with actual energy deposition |
794 | |
795 | Int_t nDigits = iniEmc->GetMultiplicity() ; |
796 | Float_t * efit = new Float_t[nDigits] ; |
7b7c1533 |
797 | Float_t xDigit=0.,zDigit=0.,distance=0. ; |
798 | Float_t xpar=0.,zpar=0.,epar=0. ; |
9a1398dd |
799 | Int_t relid[4] ; |
7b7c1533 |
800 | AliPHOSDigit * digit = 0 ; |
9a1398dd |
801 | Int_t * emcDigits = iniEmc->GetDigitsList() ; |
802 | |
803 | Int_t iparam ; |
804 | Int_t iDigit ; |
805 | for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){ |
7b7c1533 |
806 | digit = (AliPHOSDigit*) digits->At(emcDigits[iDigit] ) ; |
807 | geom->AbsToRelNumbering(digit->GetId(), relid) ; |
808 | geom->RelPosInModule(relid, xDigit, zDigit) ; |
9a1398dd |
809 | efit[iDigit] = 0; |
810 | |
811 | iparam = 0 ; |
812 | while(iparam < nPar ){ |
813 | xpar = fitparameters[iparam] ; |
814 | zpar = fitparameters[iparam+1] ; |
815 | epar = fitparameters[iparam+2] ; |
816 | iparam += 3 ; |
817 | distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ; |
818 | distance = TMath::Sqrt(distance) ; |
819 | efit[iDigit] += epar * ShowerShape(distance) ; |
820 | } |
821 | } |
822 | |
823 | |
824 | // Now create new RecPoints and fill energy lists with efit corrected to fluctuations |
825 | // so that energy deposited in each cell is distributed betwin new clusters proportionally |
826 | // to its contribution to efit |
827 | |
828 | Float_t * emcEnergies = iniEmc->GetEnergiesList() ; |
829 | Float_t ratio ; |
830 | |
831 | iparam = 0 ; |
832 | while(iparam < nPar ){ |
833 | xpar = fitparameters[iparam] ; |
834 | zpar = fitparameters[iparam+1] ; |
835 | epar = fitparameters[iparam+2] ; |
836 | iparam += 3 ; |
837 | |
7b7c1533 |
838 | AliPHOSEmcRecPoint * emcRP = 0 ; |
9a1398dd |
839 | |
840 | if(iniEmc->IsEmc()){ //create new entries in fEmcRecPoints... |
841 | |
7b7c1533 |
842 | if(fNumberOfEmcClusters >= emcRecPoints->GetSize()) |
843 | emcRecPoints->Expand(2*fNumberOfEmcClusters) ; |
9a1398dd |
844 | |
73a68ccb |
845 | (*emcRecPoints)[fNumberOfEmcClusters] = new AliPHOSEmcRecPoint("") ; |
7b7c1533 |
846 | emcRP = (AliPHOSEmcRecPoint *) emcRecPoints->At(fNumberOfEmcClusters); |
9a1398dd |
847 | fNumberOfEmcClusters++ ; |
848 | } |
849 | else{//create new entries in fCpvRecPoints |
7b7c1533 |
850 | if(fNumberOfCpvClusters >= cpvRecPoints->GetSize()) |
851 | cpvRecPoints->Expand(2*fNumberOfCpvClusters) ; |
9a1398dd |
852 | |
73a68ccb |
853 | (*cpvRecPoints)[fNumberOfCpvClusters] = new AliPHOSCpvRecPoint("") ; |
7b7c1533 |
854 | emcRP = (AliPHOSEmcRecPoint *) cpvRecPoints->At(fNumberOfCpvClusters); |
9a1398dd |
855 | fNumberOfCpvClusters++ ; |
856 | } |
857 | |
858 | Float_t eDigit ; |
859 | for(iDigit = 0 ; iDigit < nDigits ; iDigit ++){ |
7b7c1533 |
860 | digit = (AliPHOSDigit*) digits->At( emcDigits[iDigit] ) ; |
861 | geom->AbsToRelNumbering(digit->GetId(), relid) ; |
862 | geom->RelPosInModule(relid, xDigit, zDigit) ; |
9a1398dd |
863 | distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ; |
864 | distance = TMath::Sqrt(distance) ; |
865 | ratio = epar * ShowerShape(distance) / efit[iDigit] ; |
866 | eDigit = emcEnergies[iDigit] * ratio ; |
867 | emcRP->AddDigit( *digit, eDigit ) ; |
868 | } |
869 | } |
870 | |
871 | delete[] fitparameters ; |
872 | delete[] efit ; |
873 | |
874 | } |
875 | |
876 | //_____________________________________________________________________________ |
877 | void AliPHOSClusterizerv1::UnfoldingChiSquare(Int_t & nPar, Double_t * Grad, Double_t & fret, Double_t * x, Int_t iflag) |
878 | { |
a4e98857 |
879 | // Calculates the Chi square for the cluster unfolding minimization |
9a1398dd |
880 | // Number of parameters, Gradient, Chi squared, parameters, what to do |
881 | |
9a1398dd |
882 | TList * toMinuit = (TList*) gMinuit->GetObjectFit() ; |
883 | |
884 | AliPHOSEmcRecPoint * emcRP = (AliPHOSEmcRecPoint*) toMinuit->At(0) ; |
885 | TClonesArray * digits = (TClonesArray*)toMinuit->At(1) ; |
886 | |
887 | |
888 | |
889 | // AliPHOSEmcRecPoint * emcRP = (AliPHOSEmcRecPoint *) gMinuit->GetObjectFit() ; // EmcRecPoint to fit |
890 | |
891 | Int_t * emcDigits = emcRP->GetDigitsList() ; |
892 | |
7b7c1533 |
893 | Int_t nOdigits = emcRP->GetDigitsMultiplicity() ; |
9a1398dd |
894 | |
895 | Float_t * emcEnergies = emcRP->GetEnergiesList() ; |
896 | |
01a599c9 |
897 | const AliPHOSGeometry * geom = AliPHOSGetter::GetInstance()->PHOSGeometry() ; |
9a1398dd |
898 | fret = 0. ; |
899 | Int_t iparam ; |
900 | |
901 | if(iflag == 2) |
902 | for(iparam = 0 ; iparam < nPar ; iparam++) |
903 | Grad[iparam] = 0 ; // Will evaluate gradient |
904 | |
905 | Double_t efit ; |
906 | |
907 | AliPHOSDigit * digit ; |
908 | Int_t iDigit ; |
909 | |
7b7c1533 |
910 | for( iDigit = 0 ; iDigit < nOdigits ; iDigit++) { |
9a1398dd |
911 | |
912 | digit = (AliPHOSDigit*) digits->At( emcDigits[iDigit] ) ; |
913 | |
914 | Int_t relid[4] ; |
915 | Float_t xDigit ; |
916 | Float_t zDigit ; |
917 | |
918 | geom->AbsToRelNumbering(digit->GetId(), relid) ; |
919 | |
920 | geom->RelPosInModule(relid, xDigit, zDigit) ; |
921 | |
922 | if(iflag == 2){ // calculate gradient |
923 | Int_t iParam = 0 ; |
924 | efit = 0 ; |
925 | while(iParam < nPar ){ |
926 | Double_t distance = (xDigit - x[iParam]) * (xDigit - x[iParam]) ; |
927 | iParam++ ; |
928 | distance += (zDigit - x[iParam]) * (zDigit - x[iParam]) ; |
929 | distance = TMath::Sqrt( distance ) ; |
930 | iParam++ ; |
931 | efit += x[iParam] * ShowerShape(distance) ; |
932 | iParam++ ; |
933 | } |
934 | Double_t sum = 2. * (efit - emcEnergies[iDigit]) / emcEnergies[iDigit] ; // Here we assume, that sigma = sqrt(E) |
935 | iParam = 0 ; |
936 | while(iParam < nPar ){ |
937 | Double_t xpar = x[iParam] ; |
938 | Double_t zpar = x[iParam+1] ; |
939 | Double_t epar = x[iParam+2] ; |
940 | Double_t dr = TMath::Sqrt( (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ); |
941 | Double_t shape = sum * ShowerShape(dr) ; |
942 | Double_t r4 = dr*dr*dr*dr ; |
943 | Double_t r295 = TMath::Power(dr,2.95) ; |
944 | Double_t deriv =-4. * dr*dr * ( 2.32 / ( (2.32 + 0.26 * r4) * (2.32 + 0.26 * r4) ) + |
945 | 0.0316 * (1. + 0.0171 * r295) / ( ( 1. + 0.0652 * r295) * (1. + 0.0652 * r295) ) ) ; |
946 | |
947 | Grad[iParam] += epar * shape * deriv * (xpar - xDigit) ; // Derivative over x |
948 | iParam++ ; |
949 | Grad[iParam] += epar * shape * deriv * (zpar - zDigit) ; // Derivative over z |
950 | iParam++ ; |
951 | Grad[iParam] += shape ; // Derivative over energy |
952 | iParam++ ; |
953 | } |
954 | } |
955 | efit = 0; |
956 | iparam = 0 ; |
957 | |
958 | while(iparam < nPar ){ |
959 | Double_t xpar = x[iparam] ; |
960 | Double_t zpar = x[iparam+1] ; |
961 | Double_t epar = x[iparam+2] ; |
962 | iparam += 3 ; |
963 | Double_t distance = (xDigit - xpar) * (xDigit - xpar) + (zDigit - zpar) * (zDigit - zpar) ; |
964 | distance = TMath::Sqrt(distance) ; |
965 | efit += epar * ShowerShape(distance) ; |
966 | } |
967 | |
968 | fret += (efit-emcEnergies[iDigit])*(efit-emcEnergies[iDigit])/emcEnergies[iDigit] ; |
969 | // Here we assume, that sigma = sqrt(E) |
970 | } |
83974468 |
971 | |
d15a28e7 |
972 | } |
973 | |
974 | //____________________________________________________________________________ |
9a1398dd |
975 | void AliPHOSClusterizerv1::Print(Option_t * option)const |
d15a28e7 |
976 | { |
d1de15f5 |
977 | // Print clusterizer parameters |
978 | |
21cd0c07 |
979 | TString message ; |
980 | TString taskName(GetName()) ; |
981 | taskName.ReplaceAll(Version(), "") ; |
982 | |
983 | if( strcmp(GetName(), "") !=0 ) { |
9a1398dd |
984 | // Print parameters |
21cd0c07 |
985 | message = "\n--------------- %s %s -----------\n" ; |
986 | message += "Clusterizing digits from the file: %s\n" ; |
987 | message += " Branch: %s\n" ; |
988 | message += " EMC Clustering threshold = %f\n" ; |
989 | message += " EMC Local Maximum cut = %f\n" ; |
990 | message += " EMC Logarothmic weight = %f\n" ; |
991 | message += " CPV Clustering threshold = %f\n" ; |
992 | message += " CPV Local Maximum cut = %f\n" ; |
993 | message += " CPV Logarothmic weight = %f\n" ; |
9a1398dd |
994 | if(fToUnfold) |
21cd0c07 |
995 | message += " Unfolding on\n" ; |
9a1398dd |
996 | else |
21cd0c07 |
997 | message += " Unfolding off\n" ; |
9a1398dd |
998 | |
21cd0c07 |
999 | message += "------------------------------------------------------------------" ; |
9a1398dd |
1000 | } |
21cd0c07 |
1001 | else |
1002 | message = " AliPHOSClusterizerv1 not initialized " ; |
1003 | |
1004 | Info("Print", message.Data(), |
1005 | taskName.Data(), |
1006 | GetTitle(), |
1007 | taskName.Data(), |
1008 | GetName(), |
1009 | fEmcClusteringThreshold, |
1010 | fEmcLocMaxCut, |
1011 | fW0, |
1012 | fCpvClusteringThreshold, |
1013 | fCpvLocMaxCut, |
1014 | fW0CPV ) ; |
9a1398dd |
1015 | } |
21cd0c07 |
1016 | |
1017 | |
9a1398dd |
1018 | //____________________________________________________________________________ |
a4e98857 |
1019 | void AliPHOSClusterizerv1::PrintRecPoints(Option_t * option) |
1020 | { |
1021 | // Prints list of RecPoints produced at the current pass of AliPHOSClusterizer |
9a1398dd |
1022 | |
fc12304f |
1023 | TObjArray * emcRecPoints = AliPHOSGetter::GetInstance()->EmcRecPoints(BranchName()) ; |
1024 | TObjArray * cpvRecPoints = AliPHOSGetter::GetInstance()->CpvRecPoints(BranchName()) ; |
7b7c1533 |
1025 | |
21cd0c07 |
1026 | TString message ; |
3bf72d32 |
1027 | message = "\nevent " ; |
1028 | message += gAlice->GetEvNumber() ; |
1029 | message += "\n Found " ; |
1030 | message += emcRecPoints->GetEntriesFast() ; |
1031 | message += "EMC RecPoints and " ; |
1032 | message += cpvRecPoints->GetEntriesFast() ; |
1033 | message += " CPV RecPoints \n" ; |
1034 | |
2b60655b |
1035 | fRecPointsInRun += emcRecPoints->GetEntriesFast() ; |
1036 | fRecPointsInRun += cpvRecPoints->GetEntriesFast() ; |
21cd0c07 |
1037 | |
11f9c5ff |
1038 | char * tempo = new char[8192]; |
1039 | |
9a1398dd |
1040 | if(strstr(option,"all")) { |
11f9c5ff |
1041 | message += "\nEMC clusters\n" ; |
1042 | message += "Index Ene(MeV) Multi Module X Y Z Lambda 1 Lambda 2 # of prim Primaries list\n" ; |
9a1398dd |
1043 | Int_t index ; |
7b7c1533 |
1044 | for (index = 0 ; index < emcRecPoints->GetEntries() ; index++) { |
1045 | AliPHOSEmcRecPoint * rp = (AliPHOSEmcRecPoint * )emcRecPoints->At(index) ; |
9a1398dd |
1046 | TVector3 locpos; |
1047 | rp->GetLocalPosition(locpos); |
9a1398dd |
1048 | Float_t lambda[2]; |
1049 | rp->GetElipsAxis(lambda); |
9a1398dd |
1050 | Int_t * primaries; |
1051 | Int_t nprimaries; |
1052 | primaries = rp->GetPrimaries(nprimaries); |
11f9c5ff |
1053 | sprintf(tempo, "\n%6d %8.2f %3d %2d %4.1f %4.1f %4.1f %4f %4f %2d : ", |
1054 | rp->GetIndexInList(), rp->GetEnergy(), rp->GetMultiplicity(), rp->GetPHOSMod(), |
1055 | locpos.X(), locpos.Y(), locpos.Z(), lambda[0], lambda[1], nprimaries) ; |
1056 | message += tempo ; |
3bf72d32 |
1057 | |
21cd0c07 |
1058 | for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) { |
11f9c5ff |
1059 | sprintf(tempo, "%d ", primaries[iprimary] ) ; |
1060 | message += tempo ; |
21cd0c07 |
1061 | } |
3bf72d32 |
1062 | |
11f9c5ff |
1063 | //Now plot CPV recPoints |
1064 | message += "Index Ene(MeV) Module X Y Z # of prim Primaries list\n" ; |
1065 | for (index = 0 ; index < cpvRecPoints->GetEntries() ; index++) { |
1066 | AliPHOSRecPoint * rp = (AliPHOSRecPoint * )cpvRecPoints->At(index) ; |
1067 | |
1068 | TVector3 locpos; |
1069 | rp->GetLocalPosition(locpos); |
1070 | |
1071 | Int_t * primaries; |
1072 | Int_t nprimaries ; |
1073 | primaries = rp->GetPrimaries(nprimaries); |
1074 | sprintf(tempo, "\n%6d %8.2f %2d %4.1f %4.1f %4.1f %2d : ", |
1075 | rp->GetIndexInList(), rp->GetEnergy(), rp->GetPHOSMod(), |
1076 | locpos.X(), locpos.Y(), locpos.Z(), nprimaries) ; |
1077 | message += tempo ; |
1078 | primaries = rp->GetPrimaries(nprimaries); |
1079 | for (Int_t iprimary=0; iprimary<nprimaries; iprimary++) { |
1080 | sprintf(tempo, "%d ", primaries[iprimary] ) ; |
1081 | message += tempo ; |
1082 | } |
21cd0c07 |
1083 | } |
9a1398dd |
1084 | } |
9a1398dd |
1085 | } |
11f9c5ff |
1086 | delete tempo ; |
3bf72d32 |
1087 | Info("Print", message.Data() ) ; |
d15a28e7 |
1088 | } |
9a1398dd |
1089 | |