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 | |