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1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
3 | * * |
4 | * Author: The ALICE Off-line Project. * |
5 | * Contributors are mentioned in the code where appropriate. * |
6 | * * |
7 | * Permission to use, copy, modify and distribute this software and its * |
8 | * documentation strictly for non-commercial purposes is hereby granted * |
9 | * without fee, provided that the above copyright notice appears in all * |
10 | * copies and that both the copyright notice and this permission notice * |
11 | * appear in the supporting documentation. The authors make no claims * |
12 | * about the suitability of this software for any purpose. It is * |
13 | * provided "as is" without express or implied warranty. * |
14 | **************************************************************************/ |
15 | |
16 | //_________________________________________________________________________ |
17 | // Rec Point in the PHOS EM calorimeter |
18 | //*-- Author : Dmitri Peressounko RRC KI |
19 | ////////////////////////////////////////////////////////////////////////////// |
20 | |
21 | // --- ROOT system --- |
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22 | #include "TPad.h" |
23 | #include "TH2.h" |
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24 | #include "TMath.h" |
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25 | #include "TCanvas.h" |
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26 | |
27 | // --- Standard library --- |
28 | |
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29 | #include <iostream> |
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30 | |
31 | // --- AliRoot header files --- |
32 | |
33 | #include "AliPHOSGeometry.h" |
34 | #include "AliPHOSEmcRecPoint.h" |
35 | #include "AliRun.h" |
36 | |
37 | ClassImp(AliPHOSEmcRecPoint) |
38 | |
39 | //____________________________________________________________________________ |
40 | AliPHOSEmcRecPoint::AliPHOSEmcRecPoint(Float_t W0, Float_t LocMaxCut) |
41 | : AliPHOSRecPoint() |
42 | { |
43 | // ctor |
44 | |
45 | fMulDigit = 0 ; |
46 | fAmp = 0. ; |
47 | fEnergyList = new Float_t[fMaxDigit]; |
48 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
49 | fDelta = PHOSGeom->GetCrystalSize(0) ; |
50 | fW0 = W0 ; |
51 | fLocMaxCut = LocMaxCut ; |
52 | fLocPos.SetX(1000000.) ; //Local position should be evaluated |
53 | } |
54 | |
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55 | //____________________________________________________________________________ |
56 | AliPHOSEmcRecPoint::~AliPHOSEmcRecPoint() |
57 | { |
58 | // dtor |
59 | } |
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60 | |
61 | //____________________________________________________________________________ |
62 | void AliPHOSEmcRecPoint::AddDigit(AliDigitNew & digit, Float_t Energy) |
63 | { |
64 | // adds a digit to the digits list |
65 | // and accumulates the total amplitude and the multiplicity |
66 | |
67 | if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists |
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68 | fMaxDigit*=2 ; |
69 | int * tempo = new ( int[fMaxDigit] ) ; |
70 | Float_t * tempoE = new ( Float_t[fMaxDigit] ) ; |
71 | |
72 | Int_t index ; |
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73 | for ( index = 0 ; index < fMulDigit ; index++ ){ |
74 | tempo[index] = fDigitsList[index] ; |
75 | tempoE[index] = fEnergyList[index] ; |
76 | } |
77 | |
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78 | delete [] fDigitsList ; |
79 | fDigitsList = new ( int[fMaxDigit] ) ; |
80 | |
81 | delete [] fEnergyList ; |
82 | fEnergyList = new ( Float_t[fMaxDigit] ) ; |
83 | |
84 | for ( index = 0 ; index < fMulDigit ; index++ ){ |
85 | fDigitsList[index] = tempo[index] ; |
86 | fEnergyList[index] = tempoE[index] ; |
87 | } |
88 | |
89 | delete [] tempo ; |
90 | delete [] tempoE ; |
91 | } // if |
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92 | |
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93 | fDigitsList[fMulDigit] = (int) &digit ; |
94 | fEnergyList[fMulDigit++] = Energy ; |
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95 | fAmp += Energy ; |
96 | } |
97 | |
98 | //____________________________________________________________________________ |
99 | Bool_t AliPHOSEmcRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) |
100 | { |
101 | |
102 | Bool_t aren = kFALSE ; |
103 | |
104 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
105 | Int_t relid1[4] ; |
106 | PHOSGeom->AbsToRelNumbering(digit1->GetId(), relid1) ; |
107 | |
108 | Int_t relid2[4] ; |
109 | PHOSGeom->AbsToRelNumbering(digit2->GetId(), relid2) ; |
110 | |
111 | Int_t RowDiff = TMath::Abs( relid1[2] - relid2[2] ) ; |
112 | Int_t ColDiff = TMath::Abs( relid1[3] - relid2[3] ) ; |
113 | |
114 | if (( ColDiff<=1 ) && ( RowDiff <= 1 ) && (ColDiff+RowDiff > 0)) |
115 | aren = kTRUE ; |
116 | |
117 | return aren ; |
118 | } |
119 | |
120 | //____________________________________________________________________________ |
121 | Int_t AliPHOSEmcRecPoint::Compare(TObject * obj) |
122 | { |
123 | Int_t rv ; |
124 | |
125 | AliPHOSEmcRecPoint * clu = (AliPHOSEmcRecPoint *)obj ; |
126 | |
127 | |
128 | Int_t PHOSMod1 = this->GetPHOSMod() ; |
129 | Int_t PHOSMod2 = clu->GetPHOSMod() ; |
130 | |
131 | TVector3 LocPos1; |
132 | this->GetLocalPosition(LocPos1) ; |
133 | TVector3 LocPos2; |
134 | clu->GetLocalPosition(LocPos2) ; |
135 | |
136 | if(PHOSMod1 == PHOSMod2 ) { |
137 | Int_t rowdif = (Int_t)TMath::Ceil(LocPos1.X()/fDelta)-(Int_t)TMath::Ceil(LocPos2.X()/fDelta) ; |
138 | if (rowdif> 0) |
139 | rv = -1 ; |
140 | else if(rowdif < 0) |
141 | rv = 1 ; |
142 | else if(LocPos1.Z()>LocPos2.Z()) |
143 | rv = -1 ; |
144 | else |
145 | rv = 1 ; |
146 | } |
147 | |
148 | else { |
149 | if(PHOSMod1 < PHOSMod2 ) |
150 | rv = -1 ; |
151 | else |
152 | rv = 1 ; |
153 | } |
154 | |
155 | return rv ; |
156 | } |
157 | |
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158 | //______________________________________________________________________________ |
159 | void AliPHOSEmcRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) |
160 | { |
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161 | //Execute action corresponding to one event |
162 | // This member function is called when a AliPHOSRecPoint is clicked with the locator |
163 | // |
164 | // If Left button is clicked on AliPHOSRecPoint, the digits are switched on |
165 | // and switched off when the mouse button is released. |
166 | // |
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167 | |
168 | // static Int_t pxold, pyold; |
169 | |
170 | static TGraph * DigitGraph = 0 ; |
171 | |
172 | if (!gPad->IsEditable()) return; |
173 | |
174 | TH2F * Histo = 0 ; |
175 | TCanvas * HistoCanvas ; |
176 | |
177 | switch (event) { |
178 | |
179 | case kButton1Down: { |
180 | AliPHOSDigit * digit ; |
181 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
182 | Int_t iDigit; |
183 | Int_t relid[4] ; |
184 | Float_t xi[fMulDigit] ; |
185 | Float_t zi[fMulDigit] ; |
186 | |
187 | // create the histogram for the single cluster |
188 | // 1. gets histogram boundaries |
189 | Float_t ximax = -999. ; |
190 | Float_t zimax = -999. ; |
191 | Float_t ximin = 999. ; |
192 | Float_t zimin = 999. ; |
193 | |
194 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
195 | digit = (AliPHOSDigit *) fDigitsList[iDigit]; |
196 | PHOSGeom->AbsToRelNumbering(digit->GetId(), relid) ; |
197 | PHOSGeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]); |
198 | if ( xi[iDigit] > ximax ) |
199 | ximax = xi[iDigit] ; |
200 | if ( xi[iDigit] < ximin ) |
201 | ximin = xi[iDigit] ; |
202 | if ( zi[iDigit] > zimax ) |
203 | zimax = zi[iDigit] ; |
204 | if ( zi[iDigit] < zimin ) |
205 | zimin = zi[iDigit] ; |
206 | } |
207 | ximax += PHOSGeom->GetCrystalSize(0) / 2. ; |
208 | zimax += PHOSGeom->GetCrystalSize(2) / 2. ; |
209 | ximin -= PHOSGeom->GetCrystalSize(0) / 2. ; |
210 | zimin -= PHOSGeom->GetCrystalSize(2) / 2. ; |
211 | Int_t xdim = (int)( (ximax - ximin ) / PHOSGeom->GetCrystalSize(0) + 0.5 ) ; |
212 | Int_t zdim = (int)( (zimax - zimin ) / PHOSGeom->GetCrystalSize(2) + 0.5 ) ; |
213 | |
214 | // 2. gets the histogram title |
215 | |
216 | Text_t title[100] ; |
217 | sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ; |
218 | |
219 | if (!Histo) { |
220 | delete Histo ; |
221 | Histo = 0 ; |
222 | } |
223 | Histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ; |
224 | |
225 | Float_t x, z ; |
226 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
227 | digit = (AliPHOSDigit *) fDigitsList[iDigit]; |
228 | PHOSGeom->AbsToRelNumbering(digit->GetId(), relid) ; |
229 | PHOSGeom->RelPosInModule(relid, x, z); |
230 | Histo->Fill(x, z, fEnergyList[iDigit] ) ; |
231 | } |
232 | |
233 | if (!DigitGraph) { |
234 | DigitGraph = new TGraph(fMulDigit,xi,zi); |
235 | DigitGraph-> SetMarkerStyle(5) ; |
236 | DigitGraph-> SetMarkerSize(1.) ; |
237 | DigitGraph-> SetMarkerColor(1) ; |
238 | DigitGraph-> Paint("P") ; |
239 | } |
240 | |
241 | Print() ; |
242 | HistoCanvas = new TCanvas("cluser", "a single cluster", 600, 500) ; |
243 | HistoCanvas->Draw() ; |
244 | Histo->Draw("lego1") ; |
245 | |
246 | break; |
247 | } |
248 | |
249 | case kButton1Up: |
250 | if (DigitGraph) { |
251 | delete DigitGraph ; |
252 | DigitGraph = 0 ; |
253 | } |
254 | break; |
255 | |
256 | } |
257 | } |
258 | |
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259 | //____________________________________________________________________________ |
260 | Float_t AliPHOSEmcRecPoint::GetDispersion() |
261 | { |
262 | Float_t D = 0 ; |
263 | Float_t wtot = 0 ; |
264 | |
265 | TVector3 LocPos; |
266 | GetLocalPosition(LocPos); |
267 | Float_t x = LocPos.X() ; |
268 | Float_t z = LocPos.Z() ; |
269 | // Int_t i = GetPHOSMod() ; |
270 | |
271 | AliPHOSDigit * digit ; |
272 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
273 | |
274 | Int_t iDigit; |
275 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
276 | digit = (AliPHOSDigit *) fDigitsList[iDigit]; |
277 | Int_t relid[4] ; |
278 | Float_t xi ; |
279 | Float_t zi ; |
280 | PHOSGeom->AbsToRelNumbering(digit->GetId(), relid) ; |
281 | PHOSGeom->RelPosInModule(relid, xi, zi); |
282 | Float_t w = TMath::Max(0.,fW0+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; |
283 | D += w*((xi-x)*(xi-x) + (zi-z)*(zi-z) ) ; |
284 | wtot+=w ; |
285 | } |
286 | |
287 | D /= wtot ; |
288 | |
289 | return TMath::Sqrt(D) ; |
290 | } |
291 | |
292 | //____________________________________________________________________________ |
293 | void AliPHOSEmcRecPoint::GetElipsAxis(Float_t * lambda) |
294 | { |
295 | Float_t wtot = 0. ; |
296 | Float_t x = 0.; |
297 | Float_t z = 0.; |
298 | Float_t Dxx = 0.; |
299 | Float_t Dzz = 0.; |
300 | Float_t Dxz = 0.; |
301 | |
302 | AliPHOSDigit * digit ; |
303 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
304 | Int_t iDigit; |
305 | |
306 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
307 | digit = (AliPHOSDigit *) fDigitsList[iDigit]; |
308 | Int_t relid[4] ; |
309 | Float_t xi ; |
310 | Float_t zi ; |
311 | PHOSGeom->AbsToRelNumbering(digit->GetId(), relid) ; |
312 | PHOSGeom->RelPosInModule(relid, xi, zi); |
313 | Float_t w = TMath::Max(0.,fW0+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; |
314 | Dxx += w * xi * xi ; |
315 | x += w * xi ; |
316 | Dzz += w * zi * zi ; |
317 | z += w * zi ; |
318 | Dxz += w * xi * zi ; |
319 | wtot += w ; |
320 | } |
321 | |
322 | Dxx /= wtot ; |
323 | x /= wtot ; |
324 | Dxx -= x * x ; |
325 | Dzz /= wtot ; |
326 | z /= wtot ; |
327 | Dzz -= z * z ; |
328 | Dxz /= wtot ; |
329 | Dxz -= x * z ; |
330 | |
331 | lambda[0] = TMath::Sqrt( 0.5 * (Dxx + Dzz) + TMath::Sqrt( 0.25 * (Dxx - Dzz) * (Dxx - Dzz) + Dxz * Dxz ) ) ; |
332 | lambda[1] = TMath::Sqrt( 0.5 * (Dxx + Dzz) - TMath::Sqrt( 0.25 * (Dxx - Dzz) * (Dxx - Dzz) + Dxz * Dxz ) ) ; |
333 | } |
334 | |
335 | //____________________________________________________________________________ |
336 | Float_t AliPHOSEmcRecPoint::GetMaximalEnergy(void) |
337 | { |
338 | Float_t menergy = 0. ; |
339 | |
340 | Int_t iDigit; |
341 | |
342 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
343 | |
344 | if(fEnergyList[iDigit] > menergy) |
345 | menergy = fEnergyList[iDigit] ; |
346 | } |
347 | return menergy ; |
348 | } |
349 | |
350 | //____________________________________________________________________________ |
351 | Int_t AliPHOSEmcRecPoint::GetMultiplicityAtLevel(Float_t H) |
352 | { |
353 | Int_t multipl = 0 ; |
354 | Int_t iDigit ; |
355 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
356 | |
357 | if(fEnergyList[iDigit] > H * fAmp) |
358 | multipl++ ; |
359 | } |
360 | return multipl ; |
361 | } |
362 | |
363 | //____________________________________________________________________________ |
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364 | Int_t AliPHOSEmcRecPoint::GetNumberOfLocalMax(Int_t * maxAt, Float_t * maxAtEnergy) |
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365 | { |
366 | AliPHOSDigit * digit ; |
367 | AliPHOSDigit * digitN ; |
368 | |
369 | |
370 | Int_t iDigitN ; |
371 | Int_t iDigit ; |
372 | |
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373 | for(iDigit = 0; iDigit < fMulDigit; iDigit++){ |
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374 | maxAt[iDigit] = fDigitsList[iDigit] ; |
375 | } |
376 | |
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377 | for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) { |
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378 | if(maxAt[iDigit] != -1) { |
379 | digit = (AliPHOSDigit *) maxAt[iDigit] ; |
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380 | |
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381 | for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) { |
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382 | digitN = (AliPHOSDigit *) fDigitsList[iDigitN] ; |
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383 | |
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384 | if ( AreNeighbours(digit, digitN) ) { |
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385 | if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) { |
386 | maxAt[iDigitN] = -1 ; |
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387 | // but may be digit too is not local max ? |
388 | if(fEnergyList[iDigit] < fEnergyList[iDigitN] + fLocMaxCut) |
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389 | maxAt[iDigit] = -1 ; |
390 | } |
391 | else { |
392 | maxAt[iDigit] = -1 ; |
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393 | // but may be digitN too is not local max ? |
394 | if(fEnergyList[iDigit] > fEnergyList[iDigitN] - fLocMaxCut) |
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395 | maxAt[iDigitN] = -1 ; |
396 | } |
397 | } // if Areneighbours |
398 | } // while digitN |
399 | } // slot not empty |
400 | } // while digit |
401 | |
402 | iDigitN = 0 ; |
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403 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) { |
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404 | if(maxAt[iDigit] != -1){ |
405 | maxAt[iDigitN] = maxAt[iDigit] ; |
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406 | maxAtEnergy[iDigitN] = fEnergyList[iDigit] ; |
407 | iDigitN++ ; |
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408 | } |
409 | } |
410 | return iDigitN ; |
411 | } |
412 | |
413 | //____________________________________________________________________________ |
414 | void AliPHOSEmcRecPoint::GetLocalPosition(TVector3 &LPos) |
415 | { |
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416 | if( fLocPos.X() < 1000000.) { // already evaluated |
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417 | LPos = fLocPos ; |
418 | return ; |
419 | } |
420 | |
421 | Float_t wtot = 0. ; |
422 | |
423 | Int_t relid[4] ; |
424 | |
425 | Float_t x = 0. ; |
426 | Float_t z = 0. ; |
427 | |
428 | AliPHOSDigit * digit ; |
429 | |
430 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
431 | |
432 | Int_t iDigit; |
433 | |
434 | |
435 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
436 | digit = (AliPHOSDigit *) fDigitsList[iDigit]; |
437 | |
438 | Float_t xi ; |
439 | Float_t zi ; |
440 | PHOSGeom->AbsToRelNumbering(digit->GetId(), relid) ; |
441 | PHOSGeom->RelPosInModule(relid, xi, zi); |
442 | Float_t w = TMath::Max( 0., fW0 + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; |
443 | x += xi * w ; |
444 | z += zi * w ; |
445 | wtot += w ; |
446 | |
447 | } |
448 | |
449 | x /= wtot ; |
450 | z /= wtot ; |
451 | fLocPos.SetX(x) ; |
452 | fLocPos.SetY(0.) ; |
453 | fLocPos.SetZ(z) ; |
454 | |
455 | LPos = fLocPos ; |
456 | } |
457 | |
458 | // //____________________________________________________________________________ |
459 | // AliPHOSEmcRecPoint& AliPHOSEmcRecPoint::operator = (AliPHOSEmcRecPoint Clu) |
460 | // { |
461 | // int * DL = Clu.GetDigitsList() ; |
462 | |
463 | // if(fDigitsList) |
464 | // delete fDigitsList ; |
465 | |
466 | // AliPHOSDigit * digit ; |
467 | |
468 | // Int_t iDigit; |
469 | |
470 | // for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
471 | // digit = (AliPHOSDigit *) DL[iDigit]; |
472 | // AddDigit(*digit) ; |
473 | // } |
474 | |
475 | // fAmp = Clu.GetTotalEnergy() ; |
476 | // fGeom = Clu.GetGeom() ; |
477 | // TVector3 LocPos; |
478 | // Clu.GetLocalPosition(LocPos) ; |
479 | // fLocPos = LocPos; |
480 | // fMulDigit = Clu.GetMultiplicity() ; |
481 | // fMaxDigit = Clu.GetMaximumMultiplicity() ; |
482 | // fPHOSMod = Clu.GetPHOSMod() ; |
483 | // fW0 = Clu.GetLogWeightCut() ; |
484 | // fDelta = Clu.GetDelta() ; |
485 | // fLocMaxCut = Clu.GetLocMaxCut() ; |
486 | |
487 | // delete DL ; |
488 | |
489 | // return *this ; |
490 | // } |
491 | |
492 | //____________________________________________________________________________ |
493 | void AliPHOSEmcRecPoint::Print(Option_t * option) |
494 | { |
495 | cout << "AliPHOSEmcRecPoint: " << endl ; |
496 | |
497 | AliPHOSDigit * digit ; |
498 | Int_t iDigit; |
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499 | AliPHOSGeometry * PHOSGeom = (AliPHOSGeometry *) fGeom ; |
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500 | |
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501 | Float_t xi ; |
502 | Float_t zi ; |
503 | Int_t relid[4] ; |
504 | |
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505 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
506 | digit = (AliPHOSDigit *) fDigitsList[iDigit]; |
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507 | PHOSGeom->AbsToRelNumbering(digit->GetId(), relid) ; |
508 | PHOSGeom->RelPosInModule(relid, xi, zi); |
509 | cout << " Id = " << digit->GetId() ; |
510 | cout << " module = " << relid[0] ; |
511 | cout << " x = " << xi ; |
512 | cout << " z = " << zi ; |
513 | cout << " Energy = " << fEnergyList[iDigit] << endl ; |
d15a28e7 |
514 | } |
515 | cout << " Multiplicity = " << fMulDigit << endl ; |
516 | cout << " Cluster Energy = " << fAmp << endl ; |
517 | |
518 | } |
519 | |
520 | //______________________________________________________________________________ |
521 | void AliPHOSEmcRecPoint::Streamer(TBuffer &R__b) |
522 | { |
523 | // Stream an object of class AliPHOSEmcRecPoint. |
524 | |
525 | if (R__b.IsReading()) { |
526 | Version_t R__v = R__b.ReadVersion(); if (R__v) { } |
527 | AliPHOSRecPoint::Streamer(R__b); |
528 | R__b >> fDelta; |
529 | R__b >> fLocMaxCut; |
530 | R__b.ReadArray(fEnergyList); |
531 | R__b >> fW0; |
532 | } else { |
533 | R__b.WriteVersion(AliPHOSEmcRecPoint::IsA()); |
534 | AliPHOSRecPoint::Streamer(R__b); |
535 | R__b << fDelta; |
536 | R__b << fLocMaxCut; |
537 | R__b.WriteArray(fEnergyList, GetMaximumDigitMultiplicity() ); |
538 | R__b << fW0; |
539 | } |
540 | } |
541 | |
542 | |