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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 | ||
d15a28e7 | 18 | //_________________________________________________________________________ |
b2a60966 | 19 | // RecPoint implementation for PHOS-EMC |
20 | // An EmcRecPoint is a cluster of digits | |
baef0810 | 21 | //*-- |
b2a60966 | 22 | //*-- Author: Dmitri Peressounko (RRC KI & SUBATECH) |
23 | ||
d15a28e7 | 24 | |
25 | // --- ROOT system --- | |
9f616d61 | 26 | #include "TPad.h" |
27 | #include "TH2.h" | |
d15a28e7 | 28 | #include "TMath.h" |
9f616d61 | 29 | #include "TCanvas.h" |
55fe9d13 | 30 | #include "TGraph.h" |
d15a28e7 | 31 | |
32 | // --- Standard library --- | |
33 | ||
d15a28e7 | 34 | // --- AliRoot header files --- |
35 | ||
a6eedfad | 36 | #include "AliGenerator.h" |
d15a28e7 | 37 | #include "AliPHOSGeometry.h" |
38 | #include "AliPHOSEmcRecPoint.h" | |
39 | #include "AliRun.h" | |
7b7c1533 | 40 | #include "AliPHOSGetter.h" |
d15a28e7 | 41 | |
42 | ClassImp(AliPHOSEmcRecPoint) | |
43 | ||
44 | //____________________________________________________________________________ | |
7932f811 | 45 | AliPHOSEmcRecPoint::AliPHOSEmcRecPoint() : AliPHOSRecPoint() |
d15a28e7 | 46 | { |
47 | // ctor | |
48 | ||
49 | fMulDigit = 0 ; | |
50 | fAmp = 0. ; | |
7932f811 | 51 | fCoreEnergy = 0 ; |
52 | fEnergyList = 0 ; | |
94256c23 | 53 | fNExMax = 0 ; //Not unfolded yet |
9688c1dd | 54 | fTime = -1. ; |
a6eedfad | 55 | fLocPos.SetX(1000000.) ; //Local position should be evaluated |
7b7c1533 | 56 | |
83974468 | 57 | } |
58 | ||
73a68ccb | 59 | //____________________________________________________________________________ |
60 | AliPHOSEmcRecPoint::AliPHOSEmcRecPoint(const char * opt) : AliPHOSRecPoint(opt) | |
61 | { | |
62 | // ctor | |
63 | ||
64 | fMulDigit = 0 ; | |
65 | fAmp = 0. ; | |
94256c23 | 66 | fNExMax = 0 ; //Not unfolded yet |
73a68ccb | 67 | fCoreEnergy = 0 ; |
68 | fEnergyList = 0 ; | |
69 | fTime = -1. ; | |
70 | fLocPos.SetX(1000000.) ; //Local position should be evaluated | |
71 | ||
72 | } | |
73 | ||
55fe9d13 | 74 | //____________________________________________________________________________ |
75 | AliPHOSEmcRecPoint::AliPHOSEmcRecPoint(const AliPHOSEmcRecPoint & rp) : AliPHOSRecPoint(rp) | |
76 | { | |
77 | // cpy ctor | |
78 | ||
79 | fMulDigit = rp.fMulDigit ; | |
80 | fAmp = rp.fAmp ; | |
81 | fCoreEnergy = rp.fCoreEnergy ; | |
82 | fEnergyList = new Float_t[rp.fMulDigit] ; | |
83 | Int_t index ; | |
84 | for(index = 0 ; index < fMulDigit ; index++) | |
85 | fEnergyList[index] = rp.fEnergyList[index] ; | |
86 | fNExMax = rp.fNExMax ; | |
87 | fTime = rp.fTime ; | |
88 | } | |
89 | ||
83974468 | 90 | //____________________________________________________________________________ |
91 | AliPHOSEmcRecPoint::~AliPHOSEmcRecPoint() | |
92 | { | |
88714635 | 93 | // dtor |
a4e98857 | 94 | |
83974468 | 95 | if ( fEnergyList ) |
96 | delete[] fEnergyList ; | |
d15a28e7 | 97 | } |
98 | ||
d15a28e7 | 99 | //____________________________________________________________________________ |
83974468 | 100 | void AliPHOSEmcRecPoint::AddDigit(AliPHOSDigit & digit, Float_t Energy) |
d15a28e7 | 101 | { |
b2a60966 | 102 | // Adds a digit to the RecPoint |
a4e98857 | 103 | // and accumulates the total amplitude and the multiplicity |
d15a28e7 | 104 | |
7932f811 | 105 | if(fEnergyList == 0) |
106 | fEnergyList = new Float_t[fMaxDigit]; | |
107 | ||
d15a28e7 | 108 | if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists |
9f616d61 | 109 | fMaxDigit*=2 ; |
83974468 | 110 | Int_t * tempo = new ( Int_t[fMaxDigit] ) ; |
9f616d61 | 111 | Float_t * tempoE = new ( Float_t[fMaxDigit] ) ; |
112 | ||
113 | Int_t index ; | |
d15a28e7 | 114 | for ( index = 0 ; index < fMulDigit ; index++ ){ |
83974468 | 115 | tempo[index] = fDigitsList[index] ; |
d15a28e7 | 116 | tempoE[index] = fEnergyList[index] ; |
117 | } | |
118 | ||
9f616d61 | 119 | delete [] fDigitsList ; |
83974468 | 120 | fDigitsList = new ( Int_t[fMaxDigit] ) ; |
9f616d61 | 121 | |
122 | delete [] fEnergyList ; | |
123 | fEnergyList = new ( Float_t[fMaxDigit] ) ; | |
124 | ||
125 | for ( index = 0 ; index < fMulDigit ; index++ ){ | |
126 | fDigitsList[index] = tempo[index] ; | |
127 | fEnergyList[index] = tempoE[index] ; | |
128 | } | |
129 | ||
130 | delete [] tempo ; | |
131 | delete [] tempoE ; | |
132 | } // if | |
d15a28e7 | 133 | |
83974468 | 134 | fDigitsList[fMulDigit] = digit.GetIndexInList() ; |
135 | fEnergyList[fMulDigit] = Energy ; | |
136 | fMulDigit++ ; | |
d15a28e7 | 137 | fAmp += Energy ; |
7932f811 | 138 | |
139 | EvalPHOSMod(&digit) ; | |
d15a28e7 | 140 | } |
141 | ||
142 | //____________________________________________________________________________ | |
ad8cfaf4 | 143 | Bool_t AliPHOSEmcRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) const |
d15a28e7 | 144 | { |
a4e98857 | 145 | // Tells if (true) or not (false) two digits are neighbors |
d15a28e7 | 146 | |
147 | Bool_t aren = kFALSE ; | |
148 | ||
7b7c1533 | 149 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
150 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
151 | ||
d15a28e7 | 152 | Int_t relid1[4] ; |
92862013 | 153 | phosgeom->AbsToRelNumbering(digit1->GetId(), relid1) ; |
d15a28e7 | 154 | |
155 | Int_t relid2[4] ; | |
92862013 | 156 | phosgeom->AbsToRelNumbering(digit2->GetId(), relid2) ; |
d15a28e7 | 157 | |
92862013 | 158 | Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ; |
159 | Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ; | |
d15a28e7 | 160 | |
92862013 | 161 | if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0)) |
d15a28e7 | 162 | aren = kTRUE ; |
163 | ||
164 | return aren ; | |
165 | } | |
166 | ||
167 | //____________________________________________________________________________ | |
2a941f4e | 168 | Int_t AliPHOSEmcRecPoint::Compare(const TObject * obj) const |
d15a28e7 | 169 | { |
b2a60966 | 170 | // Compares two RecPoints according to their position in the PHOS modules |
171 | ||
7932f811 | 172 | Float_t delta = 1 ; //Width of "Sorting row". If you changibg this |
173 | //value (what is senseless) change as vell delta in | |
174 | //AliPHOSTrackSegmentMakerv* and other RecPoints... | |
d15a28e7 | 175 | Int_t rv ; |
176 | ||
177 | AliPHOSEmcRecPoint * clu = (AliPHOSEmcRecPoint *)obj ; | |
178 | ||
179 | ||
ad8cfaf4 | 180 | Int_t phosmod1 = GetPHOSMod() ; |
92862013 | 181 | Int_t phosmod2 = clu->GetPHOSMod() ; |
d15a28e7 | 182 | |
92862013 | 183 | TVector3 locpos1; |
7932f811 | 184 | GetLocalPosition(locpos1) ; |
92862013 | 185 | TVector3 locpos2; |
186 | clu->GetLocalPosition(locpos2) ; | |
d15a28e7 | 187 | |
92862013 | 188 | if(phosmod1 == phosmod2 ) { |
7932f811 | 189 | Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ; |
d15a28e7 | 190 | if (rowdif> 0) |
7932f811 | 191 | rv = 1 ; |
d15a28e7 | 192 | else if(rowdif < 0) |
7932f811 | 193 | rv = -1 ; |
92862013 | 194 | else if(locpos1.Z()>locpos2.Z()) |
d15a28e7 | 195 | rv = -1 ; |
196 | else | |
197 | rv = 1 ; | |
198 | } | |
199 | ||
200 | else { | |
92862013 | 201 | if(phosmod1 < phosmod2 ) |
d15a28e7 | 202 | rv = -1 ; |
203 | else | |
204 | rv = 1 ; | |
205 | } | |
206 | ||
207 | return rv ; | |
208 | } | |
9f616d61 | 209 | //______________________________________________________________________________ |
baef0810 | 210 | void AliPHOSEmcRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) const |
9f616d61 | 211 | { |
9f616d61 | 212 | |
9688c1dd | 213 | // Execute action corresponding to one event |
214 | // This member function is called when a AliPHOSRecPoint is clicked with the locator | |
215 | // | |
216 | // If Left button is clicked on AliPHOSRecPoint, the digits are switched on | |
217 | // and switched off when the mouse button is released. | |
218 | ||
219 | ||
220 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
221 | if(!gime) return ; | |
222 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
83974468 | 223 | |
9688c1dd | 224 | static TGraph * digitgraph = 0 ; |
83974468 | 225 | |
9688c1dd | 226 | if (!gPad->IsEditable()) return; |
83974468 | 227 | |
9688c1dd | 228 | TH2F * histo = 0 ; |
229 | TCanvas * histocanvas ; | |
230 | ||
afa51c4e | 231 | const TClonesArray * digits = gime->Digits() ; |
9688c1dd | 232 | |
233 | switch (event) { | |
83974468 | 234 | |
9688c1dd | 235 | case kButton1Down: { |
236 | AliPHOSDigit * digit ; | |
237 | Int_t iDigit; | |
238 | Int_t relid[4] ; | |
83974468 | 239 | |
9688c1dd | 240 | const Int_t kMulDigit = AliPHOSEmcRecPoint::GetDigitsMultiplicity() ; |
241 | Float_t * xi = new Float_t[kMulDigit] ; | |
242 | Float_t * zi = new Float_t[kMulDigit] ; | |
83974468 | 243 | |
9688c1dd | 244 | // create the histogram for the single cluster |
245 | // 1. gets histogram boundaries | |
246 | Float_t ximax = -999. ; | |
247 | Float_t zimax = -999. ; | |
248 | Float_t ximin = 999. ; | |
249 | Float_t zimin = 999. ; | |
83974468 | 250 | |
9688c1dd | 251 | for(iDigit=0; iDigit<kMulDigit; iDigit++) { |
252 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; | |
253 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
254 | phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]); | |
255 | if ( xi[iDigit] > ximax ) | |
256 | ximax = xi[iDigit] ; | |
257 | if ( xi[iDigit] < ximin ) | |
258 | ximin = xi[iDigit] ; | |
259 | if ( zi[iDigit] > zimax ) | |
260 | zimax = zi[iDigit] ; | |
261 | if ( zi[iDigit] < zimin ) | |
262 | zimin = zi[iDigit] ; | |
263 | } | |
264 | ximax += phosgeom->GetCrystalSize(0) / 2. ; | |
265 | zimax += phosgeom->GetCrystalSize(2) / 2. ; | |
266 | ximin -= phosgeom->GetCrystalSize(0) / 2. ; | |
267 | zimin -= phosgeom->GetCrystalSize(2) / 2. ; | |
268 | Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ; | |
269 | Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ; | |
83974468 | 270 | |
9688c1dd | 271 | // 2. gets the histogram title |
83974468 | 272 | |
9688c1dd | 273 | Text_t title[100] ; |
274 | sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ; | |
83974468 | 275 | |
9688c1dd | 276 | if (!histo) { |
277 | delete histo ; | |
278 | histo = 0 ; | |
279 | } | |
280 | histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ; | |
83974468 | 281 | |
9688c1dd | 282 | Float_t x, z ; |
283 | for(iDigit=0; iDigit<kMulDigit; iDigit++) { | |
284 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; | |
285 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
286 | phosgeom->RelPosInModule(relid, x, z); | |
287 | histo->Fill(x, z, fEnergyList[iDigit] ) ; | |
288 | } | |
83974468 | 289 | |
9688c1dd | 290 | if (!digitgraph) { |
291 | digitgraph = new TGraph(kMulDigit,xi,zi); | |
292 | digitgraph-> SetMarkerStyle(5) ; | |
293 | digitgraph-> SetMarkerSize(1.) ; | |
294 | digitgraph-> SetMarkerColor(1) ; | |
295 | digitgraph-> Paint("P") ; | |
296 | } | |
83974468 | 297 | |
9688c1dd | 298 | // Print() ; |
299 | histocanvas = new TCanvas("cluster", "a single cluster", 600, 500) ; | |
300 | histocanvas->Draw() ; | |
301 | histo->Draw("lego1") ; | |
83974468 | 302 | |
9688c1dd | 303 | delete[] xi ; |
304 | delete[] zi ; | |
83974468 | 305 | |
9688c1dd | 306 | break; |
307 | } | |
83974468 | 308 | |
9688c1dd | 309 | case kButton1Up: |
310 | if (digitgraph) { | |
311 | delete digitgraph ; | |
312 | digitgraph = 0 ; | |
313 | } | |
314 | break; | |
9f616d61 | 315 | |
9688c1dd | 316 | } |
9f616d61 | 317 | } |
318 | ||
d15a28e7 | 319 | //____________________________________________________________________________ |
7932f811 | 320 | void AliPHOSEmcRecPoint::EvalDispersion(Float_t logWeight,TClonesArray * digits) |
d15a28e7 | 321 | { |
b2a60966 | 322 | // Calculates the dispersion of the shower at the origine of the RecPoint |
323 | ||
e5b16749 | 324 | Float_t d = 0. ; |
325 | Float_t wtot = 0. ; | |
d15a28e7 | 326 | |
d084d50d | 327 | Float_t x = 0.; |
328 | Float_t z = 0.; | |
d15a28e7 | 329 | |
330 | AliPHOSDigit * digit ; | |
7b7c1533 | 331 | |
332 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
333 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
d15a28e7 | 334 | |
e5b16749 | 335 | |
336 | // Calculates the center of gravity in the local PHOS-module coordinates | |
337 | ||
d15a28e7 | 338 | Int_t iDigit; |
e5b16749 | 339 | |
340 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
341 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; | |
342 | Int_t relid[4] ; | |
343 | Float_t xi ; | |
344 | Float_t zi ; | |
345 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
346 | phosgeom->RelPosInModule(relid, xi, zi); | |
347 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; | |
348 | x += xi * w ; | |
349 | z += zi * w ; | |
350 | wtot += w ; | |
351 | } | |
352 | x /= wtot ; | |
353 | z /= wtot ; | |
354 | ||
355 | ||
356 | // Calculates the dispersion in coordinates | |
357 | wtot = 0.; | |
88714635 | 358 | for(iDigit=0; iDigit < fMulDigit; iDigit++) { |
7932f811 | 359 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; |
d15a28e7 | 360 | Int_t relid[4] ; |
361 | Float_t xi ; | |
362 | Float_t zi ; | |
92862013 | 363 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
364 | phosgeom->RelPosInModule(relid, xi, zi); | |
7932f811 | 365 | Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; |
92862013 | 366 | d += w*((xi-x)*(xi-x) + (zi-z)*(zi-z) ) ; |
d15a28e7 | 367 | wtot+=w ; |
d084d50d | 368 | |
369 | ||
d15a28e7 | 370 | } |
e5b16749 | 371 | |
7932f811 | 372 | |
92862013 | 373 | d /= wtot ; |
d15a28e7 | 374 | |
7932f811 | 375 | fDispersion = TMath::Sqrt(d) ; |
c63c49e9 | 376 | |
d15a28e7 | 377 | } |
fad3e5b9 | 378 | //______________________________________________________________________________ |
e5b16749 | 379 | void AliPHOSEmcRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits) |
fad3e5b9 | 380 | { |
a4e98857 | 381 | // This function calculates energy in the core, |
382 | // i.e. within a radius rad = 3cm around the center. Beyond this radius | |
383 | // in accordance with shower profile the energy deposition | |
fad3e5b9 | 384 | // should be less than 2% |
385 | ||
fad3e5b9 | 386 | Float_t coreRadius = 3 ; |
387 | ||
e5b16749 | 388 | Float_t x = 0 ; |
389 | Float_t z = 0 ; | |
fad3e5b9 | 390 | |
391 | AliPHOSDigit * digit ; | |
7b7c1533 | 392 | |
393 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
394 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
395 | ||
fad3e5b9 | 396 | Int_t iDigit; |
e5b16749 | 397 | |
398 | // Calculates the center of gravity in the local PHOS-module coordinates | |
399 | Float_t wtot = 0; | |
400 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
401 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; | |
402 | Int_t relid[4] ; | |
403 | Float_t xi ; | |
404 | Float_t zi ; | |
405 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
406 | phosgeom->RelPosInModule(relid, xi, zi); | |
407 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; | |
408 | x += xi * w ; | |
409 | z += zi * w ; | |
410 | wtot += w ; | |
411 | } | |
412 | x /= wtot ; | |
413 | z /= wtot ; | |
414 | ||
415 | ||
fad3e5b9 | 416 | for(iDigit=0; iDigit < fMulDigit; iDigit++) { |
7932f811 | 417 | digit = (AliPHOSDigit *) ( digits->At(fDigitsList[iDigit]) ) ; |
fad3e5b9 | 418 | Int_t relid[4] ; |
419 | Float_t xi ; | |
420 | Float_t zi ; | |
421 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
422 | phosgeom->RelPosInModule(relid, xi, zi); | |
423 | Float_t distance = TMath::Sqrt((xi-x)*(xi-x)+(zi-z)*(zi-z)) ; | |
424 | if(distance < coreRadius) | |
7932f811 | 425 | fCoreEnergy += fEnergyList[iDigit] ; |
fad3e5b9 | 426 | } |
427 | ||
fad3e5b9 | 428 | } |
d15a28e7 | 429 | |
430 | //____________________________________________________________________________ | |
7932f811 | 431 | void AliPHOSEmcRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits) |
d15a28e7 | 432 | { |
b2a60966 | 433 | // Calculates the axis of the shower ellipsoid |
83974468 | 434 | |
e8dbb96e | 435 | Double_t wtot = 0. ; |
436 | Double_t x = 0.; | |
437 | Double_t z = 0.; | |
438 | Double_t dxx = 0.; | |
439 | Double_t dzz = 0.; | |
440 | Double_t dxz = 0.; | |
d15a28e7 | 441 | |
442 | AliPHOSDigit * digit ; | |
7b7c1533 | 443 | |
444 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
445 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
446 | ||
d15a28e7 | 447 | Int_t iDigit; |
448 | ||
e5b16749 | 449 | |
d15a28e7 | 450 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
7932f811 | 451 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; |
d15a28e7 | 452 | Int_t relid[4] ; |
453 | Float_t xi ; | |
454 | Float_t zi ; | |
92862013 | 455 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
456 | phosgeom->RelPosInModule(relid, xi, zi); | |
7932f811 | 457 | Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; |
92862013 | 458 | dxx += w * xi * xi ; |
d15a28e7 | 459 | x += w * xi ; |
92862013 | 460 | dzz += w * zi * zi ; |
d15a28e7 | 461 | z += w * zi ; |
92862013 | 462 | dxz += w * xi * zi ; |
d15a28e7 | 463 | wtot += w ; |
464 | } | |
92862013 | 465 | dxx /= wtot ; |
d15a28e7 | 466 | x /= wtot ; |
92862013 | 467 | dxx -= x * x ; |
468 | dzz /= wtot ; | |
d15a28e7 | 469 | z /= wtot ; |
92862013 | 470 | dzz -= z * z ; |
471 | dxz /= wtot ; | |
472 | dxz -= x * z ; | |
d15a28e7 | 473 | |
69183710 | 474 | // //Apply correction due to non-perpendicular incidence |
475 | // Double_t CosX ; | |
476 | // Double_t CosZ ; | |
7b7c1533 | 477 | // AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
478 | // AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
479 | // Double_t DistanceToIP= (Double_t ) phosgeom->GetIPtoCrystalSurface() ; | |
69183710 | 480 | |
481 | // CosX = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+x*x) ; | |
482 | // CosZ = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+z*z) ; | |
483 | ||
484 | // dxx = dxx/(CosX*CosX) ; | |
485 | // dzz = dzz/(CosZ*CosZ) ; | |
486 | // dxz = dxz/(CosX*CosZ) ; | |
487 | ||
488 | ||
7932f811 | 489 | fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ; |
490 | if(fLambda[0] > 0) | |
491 | fLambda[0] = TMath::Sqrt(fLambda[0]) ; | |
e8dbb96e | 492 | |
7932f811 | 493 | fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ; |
494 | if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda. | |
495 | fLambda[1] = TMath::Sqrt(fLambda[1]) ; | |
e8dbb96e | 496 | else |
7932f811 | 497 | fLambda[1]= 0. ; |
d15a28e7 | 498 | } |
499 | ||
b2a60966 | 500 | //____________________________________________________________________________ |
7932f811 | 501 | void AliPHOSEmcRecPoint::EvalAll(Float_t logWeight, TClonesArray * digits ) |
ad8cfaf4 | 502 | { |
baef0810 | 503 | // Evaluates all shower parameters |
504 | ||
7932f811 | 505 | EvalLocalPosition(logWeight, digits) ; |
506 | EvalElipsAxis(logWeight, digits) ; | |
507 | EvalDispersion(logWeight, digits) ; | |
e5b16749 | 508 | EvalCoreEnergy(logWeight, digits); |
a6eedfad | 509 | EvalTime(digits) ; |
bb53c80c | 510 | AliPHOSRecPoint::EvalAll(logWeight,digits) ; |
ad8cfaf4 | 511 | } |
512 | //____________________________________________________________________________ | |
7932f811 | 513 | void AliPHOSEmcRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits) |
b2a60966 | 514 | { |
515 | // Calculates the center of gravity in the local PHOS-module coordinates | |
b2a60966 | 516 | Float_t wtot = 0. ; |
517 | ||
518 | Int_t relid[4] ; | |
519 | ||
520 | Float_t x = 0. ; | |
521 | Float_t z = 0. ; | |
522 | ||
523 | AliPHOSDigit * digit ; | |
524 | ||
7b7c1533 | 525 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; |
526 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
b2a60966 | 527 | |
528 | Int_t iDigit; | |
529 | ||
b2a60966 | 530 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
7932f811 | 531 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; |
b2a60966 | 532 | |
533 | Float_t xi ; | |
534 | Float_t zi ; | |
535 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
536 | phosgeom->RelPosInModule(relid, xi, zi); | |
7932f811 | 537 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; |
b2a60966 | 538 | x += xi * w ; |
539 | z += zi * w ; | |
540 | wtot += w ; | |
b2a60966 | 541 | |
9ce1a8d9 | 542 | } |
69183710 | 543 | |
544 | x /= wtot ; | |
545 | z /= wtot ; | |
ad8cfaf4 | 546 | |
547 | // Correction for the depth of the shower starting point (TDR p 127) | |
548 | Float_t para = 0.925 ; | |
549 | Float_t parb = 6.52 ; | |
550 | ||
1b799736 | 551 | Float_t xo,yo,zo ; //Coordinates of the origin |
552 | gAlice->Generator()->GetOrigin(xo,yo,zo) ; | |
553 | ||
5830e1d9 | 554 | Float_t phi = phosgeom->GetPHOSAngle(relid[0]) ; |
1b799736 | 555 | |
556 | //Transform to the local ref.frame | |
557 | Float_t xoL,yoL ; | |
558 | xoL = xo*TMath::Cos(phi)-yo*TMath::Sin(phi) ; | |
559 | yoL = xo*TMath::Sin(phi)+yo*TMath::Cos(phi) ; | |
560 | ||
fd84cb73 | 561 | Float_t radius = phosgeom->GetIPtoCrystalSurface()-yoL; |
1b799736 | 562 | |
563 | Float_t incidencephi = TMath::ATan((x-xoL ) / radius) ; | |
564 | Float_t incidencetheta = TMath::ATan((z-zo) / radius) ; | |
ad8cfaf4 | 565 | |
566 | Float_t depthx = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencephi) ; | |
567 | Float_t depthz = ( para * TMath::Log(fAmp) + parb ) * TMath::Sin(incidencetheta) ; | |
ad8cfaf4 | 568 | |
569 | fLocPos.SetX(x - depthx) ; | |
b2a60966 | 570 | fLocPos.SetY(0.) ; |
ad8cfaf4 | 571 | fLocPos.SetZ(z - depthz) ; |
b2a60966 | 572 | |
a6eedfad | 573 | fLocPosM = 0 ; |
b2a60966 | 574 | } |
575 | ||
d15a28e7 | 576 | //____________________________________________________________________________ |
ad8cfaf4 | 577 | Float_t AliPHOSEmcRecPoint::GetMaximalEnergy(void) const |
d15a28e7 | 578 | { |
b2a60966 | 579 | // Finds the maximum energy in the cluster |
580 | ||
d15a28e7 | 581 | Float_t menergy = 0. ; |
582 | ||
583 | Int_t iDigit; | |
584 | ||
585 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
586 | ||
587 | if(fEnergyList[iDigit] > menergy) | |
588 | menergy = fEnergyList[iDigit] ; | |
589 | } | |
590 | return menergy ; | |
591 | } | |
592 | ||
593 | //____________________________________________________________________________ | |
ad8cfaf4 | 594 | Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(const Float_t H) const |
d15a28e7 | 595 | { |
b2a60966 | 596 | // Calculates the multiplicity of digits with energy larger than H*energy |
597 | ||
d15a28e7 | 598 | Int_t multipl = 0 ; |
599 | Int_t iDigit ; | |
600 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
601 | ||
602 | if(fEnergyList[iDigit] > H * fAmp) | |
603 | multipl++ ; | |
604 | } | |
605 | return multipl ; | |
606 | } | |
607 | ||
608 | //____________________________________________________________________________ | |
a0636361 | 609 | Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax( AliPHOSDigit ** maxAt, Float_t * maxAtEnergy, |
7932f811 | 610 | Float_t locMaxCut,TClonesArray * digits) const |
d15a28e7 | 611 | { |
b2a60966 | 612 | // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum |
a4e98857 | 613 | // energy difference between two local maxima |
b2a60966 | 614 | |
d15a28e7 | 615 | AliPHOSDigit * digit ; |
616 | AliPHOSDigit * digitN ; | |
617 | ||
618 | ||
619 | Int_t iDigitN ; | |
620 | Int_t iDigit ; | |
621 | ||
7932f811 | 622 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) |
a0636361 | 623 | maxAt[iDigit] = (AliPHOSDigit*) digits->At(fDigitsList[iDigit]) ; |
7932f811 | 624 | |
d15a28e7 | 625 | |
6ad0bfa0 | 626 | for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) { |
a0636361 | 627 | if(maxAt[iDigit]) { |
628 | digit = maxAt[iDigit] ; | |
83974468 | 629 | |
6ad0bfa0 | 630 | for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) { |
7932f811 | 631 | digitN = (AliPHOSDigit *) digits->At(fDigitsList[iDigitN]) ; |
d15a28e7 | 632 | |
9f616d61 | 633 | if ( AreNeighbours(digit, digitN) ) { |
d15a28e7 | 634 | if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) { |
a0636361 | 635 | maxAt[iDigitN] = 0 ; |
6ad0bfa0 | 636 | // but may be digit too is not local max ? |
7932f811 | 637 | if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut) |
a0636361 | 638 | maxAt[iDigit] = 0 ; |
d15a28e7 | 639 | } |
640 | else { | |
a0636361 | 641 | maxAt[iDigit] = 0 ; |
6ad0bfa0 | 642 | // but may be digitN too is not local max ? |
7932f811 | 643 | if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut) |
a0636361 | 644 | maxAt[iDigitN] = 0 ; |
d15a28e7 | 645 | } |
646 | } // if Areneighbours | |
647 | } // while digitN | |
648 | } // slot not empty | |
649 | } // while digit | |
650 | ||
651 | iDigitN = 0 ; | |
6ad0bfa0 | 652 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) { |
a0636361 | 653 | if(maxAt[iDigit]){ |
d15a28e7 | 654 | maxAt[iDigitN] = maxAt[iDigit] ; |
9f616d61 | 655 | maxAtEnergy[iDigitN] = fEnergyList[iDigit] ; |
656 | iDigitN++ ; | |
d15a28e7 | 657 | } |
658 | } | |
659 | return iDigitN ; | |
660 | } | |
9688c1dd | 661 | //____________________________________________________________________________ |
0bc3b8ed | 662 | void AliPHOSEmcRecPoint::EvalTime(TClonesArray * digits) |
663 | { | |
664 | // Define a rec.point time as a time in the cell with the maximum energy | |
665 | ||
9688c1dd | 666 | Float_t maxE = 0; |
667 | Int_t maxAt = 0; | |
668 | for(Int_t idig=0; idig < fMulDigit; idig++){ | |
669 | if(fEnergyList[idig] > maxE){ | |
670 | maxE = fEnergyList[idig] ; | |
671 | maxAt = idig; | |
672 | } | |
673 | } | |
674 | fTime = ((AliPHOSDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ; | |
675 | ||
676 | } | |
d15a28e7 | 677 | //____________________________________________________________________________ |
092b50ba | 678 | void AliPHOSEmcRecPoint::Purify(Float_t threshold){ |
679 | //Removes digits below threshold | |
680 | ||
681 | Int_t * tempo = new ( Int_t[fMaxDigit] ) ; | |
682 | Float_t * tempoE = new ( Float_t[fMaxDigit] ) ; | |
683 | ||
684 | Int_t mult = 0 ; | |
685 | for(Int_t iDigit=0;iDigit< fMulDigit ;iDigit++){ | |
686 | if(fEnergyList[iDigit] > threshold){ | |
687 | tempo[mult] = fDigitsList[iDigit] ; | |
688 | tempoE[mult] = fEnergyList[iDigit] ; | |
689 | mult++ ; | |
690 | } | |
691 | } | |
692 | ||
693 | fMulDigit = mult ; | |
694 | delete [] fDigitsList ; | |
695 | delete [] fEnergyList ; | |
696 | fDigitsList = new (Int_t[fMulDigit]) ; | |
697 | fEnergyList = new ( Float_t[fMulDigit]) ; | |
698 | ||
699 | for(Int_t iDigit=0;iDigit< fMulDigit ;iDigit++){ | |
700 | fDigitsList[iDigit] = tempo[iDigit]; | |
701 | fEnergyList[iDigit] = tempoE[iDigit] ; | |
702 | } | |
703 | ||
704 | delete [] tempo ; | |
705 | delete [] tempoE ; | |
706 | ||
707 | } | |
708 | //____________________________________________________________________________ | |
709 | void AliPHOSEmcRecPoint::Print(Option_t * option) const | |
d15a28e7 | 710 | { |
b2a60966 | 711 | // Print the list of digits belonging to the cluster |
712 | ||
21cd0c07 | 713 | TString message ; |
714 | message = "AliPHOSEmcRecPoint:\n" ; | |
715 | message += " digits # = " ; | |
716 | Info("Print", message.Data()) ; | |
d15a28e7 | 717 | |
d15a28e7 | 718 | Int_t iDigit; |
7932f811 | 719 | for(iDigit=0; iDigit<fMulDigit; iDigit++) |
53ad38d8 | 720 | printf(" %d ", fDigitsList[iDigit] ) ; |
7932f811 | 721 | |
21cd0c07 | 722 | Info("Print", " Energies = ") ; |
7932f811 | 723 | for(iDigit=0; iDigit<fMulDigit; iDigit++) |
53ad38d8 | 724 | printf(" %f ", fEnergyList[iDigit] ) ; |
725 | printf("\n") ; | |
21cd0c07 | 726 | Info("Print", " Primaries ") ; |
bc68d12c | 727 | for(iDigit = 0;iDigit < fMulTrack; iDigit++) |
53ad38d8 | 728 | printf(" %d ", fTracksList[iDigit]) ; |
729 | printf("\n") ; | |
21cd0c07 | 730 | message = " Multiplicity = %d" ; |
731 | message += " Cluster Energy = %f" ; | |
732 | message += " Number of primaries %d" ; | |
733 | message += " Stored at position %d" ; | |
83974468 | 734 | |
21cd0c07 | 735 | Info("Print", message.Data(), fMulDigit, fAmp, fMulTrack,GetIndexInList() ) ; |
d15a28e7 | 736 | } |
88714635 | 737 | |
7932f811 | 738 |