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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 | **************************************************************************/ | |
b2a60966 | 15 | /* $Id$ */ |
702ab87e | 16 | |
17 | /* History of cvs commits: | |
18 | * | |
19 | * $Log$ | |
15e85efa | 20 | * Revision 1.78 2005/11/18 13:04:51 hristov |
21 | * Bug fix | |
22 | * | |
a494460a | 23 | * Revision 1.77 2005/11/17 23:34:36 hristov |
24 | * Corrected logics | |
25 | * | |
f74a631d | 26 | * Revision 1.76 2005/11/17 22:29:12 hristov |
27 | * Faster version, no attempt to match tracks outside the PHOS acceptance | |
28 | * | |
0d9aa319 | 29 | * Revision 1.75 2005/11/17 12:35:27 hristov |
30 | * Use references instead of objects. Avoid to create objects when they are not really needed | |
31 | * | |
7b51037f | 32 | * Revision 1.74 2005/07/08 14:01:36 hristov |
33 | * Tracking in non-uniform nmagnetic field (Yu.Belikov) | |
34 | * | |
c84a5e9e | 35 | * Revision 1.73 2005/05/28 14:19:05 schutz |
36 | * Compilation warnings fixed by T.P. | |
37 | * | |
702ab87e | 38 | */ |
39 | ||
d15a28e7 | 40 | //_________________________________________________________________________ |
b2a60966 | 41 | // Implementation version 1 of algorithm class to construct PHOS track segments |
f035f6ce | 42 | // Track segment for PHOS is list of |
194f9939 | 43 | // EMC RecPoint + (possibly) CPV RecPoint |
a4e98857 | 44 | // To find TrackSegments we do the following: |
45 | // for each EMC RecPoints we look at | |
194f9939 | 46 | // CPV RecPoints in the radious fRcpv. |
a4e98857 | 47 | // If there is such a CPV RecPoint, |
194f9939 | 48 | // we make "Link" it is just indexes of EMC and CPV RecPoint and distance |
a4e98857 | 49 | // between them in the PHOS plane. |
50 | // Then we sort "Links" and starting from the | |
51 | // least "Link" pointing to the unassined EMC and CPV RecPoints assing them to | |
52 | // new TrackSegment. | |
194f9939 | 53 | // If there is no CPV RecPoint we make TrackSegment |
a4e98857 | 54 | // consisting from EMC alone. There is no TrackSegments without EMC RecPoint. |
f444a19f | 55 | //// In principle this class should be called from AliPHOSReconstructor, but |
a4e98857 | 56 | // one can use it as well in standalone mode. |
57 | // Use case: | |
fc12304f | 58 | // root [0] AliPHOSTrackSegmentMakerv1 * t = new AliPHOSTrackSegmentMaker("galice.root", "tracksegmentsname", "recpointsname") |
a4e98857 | 59 | // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated |
fc12304f | 60 | // // reads gAlice from header file "galice.root", uses recpoints stored in the branch names "recpointsname" (default = "Default") |
61 | // // and saves recpoints in branch named "tracksegmentsname" (default = "recpointsname") | |
a4e98857 | 62 | // root [1] t->ExecuteTask() |
a4e98857 | 63 | // root [3] t->SetTrackSegmentsBranch("max distance 5 cm") |
64 | // root [4] t->ExecuteTask("deb all time") | |
f035f6ce | 65 | // |
fc12304f | 66 | //*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH) & Yves Schutz (SUBATECH) |
b2a60966 | 67 | // |
d15a28e7 | 68 | |
69 | // --- ROOT system --- | |
2731cd1e | 70 | #include "TTree.h" |
2731cd1e | 71 | #include "TBenchmark.h" |
d15a28e7 | 72 | |
21cd0c07 | 73 | // --- Standard library --- |
194f9939 | 74 | #include "Riostream.h" |
d15a28e7 | 75 | // --- AliRoot header files --- |
e957fea8 | 76 | #include "AliPHOSGeometry.h" |
d15a28e7 | 77 | #include "AliPHOSTrackSegmentMakerv1.h" |
78 | #include "AliPHOSTrackSegment.h" | |
79 | #include "AliPHOSLink.h" | |
7b7c1533 | 80 | #include "AliPHOSGetter.h" |
aa0b9641 | 81 | #include "AliESD.h" |
82 | #include "AliESDtrack.h" | |
d15a28e7 | 83 | |
84 | ClassImp( AliPHOSTrackSegmentMakerv1) | |
85 | ||
86 | ||
87 | //____________________________________________________________________________ | |
2bd5457f | 88 | AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1() : AliPHOSTrackSegmentMaker() |
d15a28e7 | 89 | { |
7b7c1533 | 90 | // default ctor (to be used mainly by Streamer) |
91 | ||
8d0f3f77 | 92 | InitParameters() ; |
92f521a9 | 93 | fDefaultInit = kTRUE ; |
d15a28e7 | 94 | } |
7b7c1533 | 95 | |
9f616d61 | 96 | //____________________________________________________________________________ |
88cb7938 | 97 | AliPHOSTrackSegmentMakerv1::AliPHOSTrackSegmentMakerv1(const TString alirunFileName, const TString eventFolderName) |
98 | :AliPHOSTrackSegmentMaker(alirunFileName, eventFolderName) | |
2731cd1e | 99 | { |
100 | // ctor | |
2731cd1e | 101 | |
8d0f3f77 | 102 | InitParameters() ; |
7b7c1533 | 103 | Init() ; |
92f521a9 | 104 | fDefaultInit = kFALSE ; |
aa0b9641 | 105 | fESD = 0; |
2731cd1e | 106 | } |
98cbd830 | 107 | |
2731cd1e | 108 | //____________________________________________________________________________ |
109 | AliPHOSTrackSegmentMakerv1::~AliPHOSTrackSegmentMakerv1() | |
110 | { | |
111 | // dtor | |
92f521a9 | 112 | // fDefaultInit = kTRUE if TrackSegmentMaker created by default ctor (to get just the parameters) |
88cb7938 | 113 | if (!fDefaultInit) |
114 | delete fLinkUpArray ; | |
d15a28e7 | 115 | } |
9f616d61 | 116 | |
8d0f3f77 | 117 | |
fc12304f | 118 | //____________________________________________________________________________ |
119 | const TString AliPHOSTrackSegmentMakerv1::BranchName() const | |
120 | { | |
88cb7938 | 121 | |
122 | return GetName() ; | |
fc12304f | 123 | } |
124 | ||
d15a28e7 | 125 | //____________________________________________________________________________ |
2731cd1e | 126 | void AliPHOSTrackSegmentMakerv1::FillOneModule() |
9f616d61 | 127 | { |
f035f6ce | 128 | // Finds first and last indexes between which |
129 | // clusters from one PHOS module are | |
88cb7938 | 130 | |
131 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
fc12304f | 132 | |
fbf811ec | 133 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
134 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
9688c1dd | 135 | |
2731cd1e | 136 | //First EMC clusters |
7b7c1533 | 137 | Int_t totalEmc = emcRecPoints->GetEntriesFast() ; |
2731cd1e | 138 | for(fEmcFirst = fEmcLast; (fEmcLast < totalEmc) && |
29b077b5 | 139 | ((dynamic_cast<AliPHOSRecPoint *>(emcRecPoints->At(fEmcLast)))->GetPHOSMod() == fModule ); |
2731cd1e | 140 | fEmcLast ++) ; |
141 | ||
2731cd1e | 142 | //Now CPV clusters |
7b7c1533 | 143 | Int_t totalCpv = cpvRecPoints->GetEntriesFast() ; |
6ad0bfa0 | 144 | |
2731cd1e | 145 | for(fCpvFirst = fCpvLast; (fCpvLast < totalCpv) && |
88cb7938 | 146 | ((dynamic_cast<AliPHOSRecPoint *>(cpvRecPoints->At(fCpvLast)))->GetPHOSMod() == fModule ); |
147 | fCpvLast ++) ; | |
9688c1dd | 148 | |
d15a28e7 | 149 | } |
7b7c1533 | 150 | |
d15a28e7 | 151 | //____________________________________________________________________________ |
194f9939 | 152 | Float_t AliPHOSTrackSegmentMakerv1::GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * emcClu,AliPHOSCpvRecPoint * cpvClu, Int_t &trackindex) const |
d15a28e7 | 153 | { |
194f9939 | 154 | // Calculates the distance between the EMC RecPoint and the CPV RecPoint |
a4e98857 | 155 | // Clusters are sorted in "rows" and "columns" of width 1 cm |
f035f6ce | 156 | |
743cb288 | 157 | //Float_t delta = 1 ; // Width of the rows in sorting of RecPoints (in cm) |
2731cd1e | 158 | // if you change this value, change it as well in xxxRecPoint::Compare() |
194f9939 | 159 | Float_t distance2Cpv = fRcpv ; |
743cb288 | 160 | Float_t distance2Track = fRtpc ; |
194f9939 | 161 | |
162 | trackindex = -1 ; // closest track within fRCpv | |
163 | ||
aa0b9641 | 164 | TVector3 vecEmc ; // Local position of EMC recpoint |
165 | TVector3 vecCpv ; // Local position of CPV recpoint propagated to EMC | |
166 | TVector3 vecDist ; // Distance between local positions of two points | |
2731cd1e | 167 | |
168 | emcClu->GetLocalPosition(vecEmc) ; | |
bfc17d18 | 169 | cpvClu->GetLocalPosition(vecCpv) ; |
2731cd1e | 170 | |
194f9939 | 171 | //toofar = kTRUE ; |
2731cd1e | 172 | if(emcClu->GetPHOSMod() == cpvClu->GetPHOSMod()){ |
2731cd1e | 173 | |
194f9939 | 174 | // Find EMC-CPV distance |
175 | distance2Cpv = (vecCpv - vecEmc).Mag() ; | |
176 | ||
aa0b9641 | 177 | if (fESD != 0x0) { |
0d9aa319 | 178 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
179 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; | |
180 | ||
181 | Double_t rPHOS = geom->GetIPtoCrystalSurface(); | |
182 | ||
183 | //PH Acceptance boundaries for each PHOS module | |
184 | Int_t nModules = geom->GetNModules(); | |
185 | Double_t * thmin = new Double_t[nModules];// theta min | |
186 | Double_t * thmax = new Double_t[nModules];// theta max | |
187 | Double_t * phmin = new Double_t[nModules];// phi min | |
188 | Double_t * phmax = new Double_t[nModules];// phi max | |
189 | ||
190 | for (Int_t imod=0; imod<nModules; imod++) { | |
191 | geom->EmcModuleCoverage(imod, | |
192 | thmin[imod],thmax[imod], | |
193 | phmin[imod],phmax[imod]); | |
194 | } | |
195 | ||
aa0b9641 | 196 | // Extrapolate the global track direction if any to CPV and find the closest track |
197 | Int_t nTracks = fESD->GetNumberOfTracks(); | |
198 | Int_t iClosestTrack = -1; | |
aa0b9641 | 199 | Double_t minDistance = 1e6; |
200 | Double_t pxyz[3], xyz[3]; | |
0d9aa319 | 201 | TVector3 inPHOS; //PH Used to calculate theta and phi |
202 | ||
203 | //PH Loop on tracks | |
aa0b9641 | 204 | AliESDtrack *track; |
205 | for (Int_t iTrack=0; iTrack<nTracks; iTrack++) { | |
206 | track = fESD->GetTrack(iTrack); | |
c84a5e9e | 207 | if (!track->GetXYZAt(rPHOS, fESD->GetMagneticField(), xyz)) |
23904d16 | 208 | continue; //track coord on the cylinder of PHOS radius |
75408399 | 209 | if ((TMath::Abs(xyz[0])+TMath::Abs(xyz[1])+TMath::Abs(xyz[2]))<=0) |
23904d16 | 210 | continue; |
0d9aa319 | 211 | //PH Here one has to cut out the tracks which are not inside the PHOS |
212 | //PH acceptance | |
213 | inPHOS.SetXYZ(xyz[0],xyz[1],xyz[2]); | |
214 | Double_t inPhi = inPHOS.Phi(); | |
215 | Double_t inTheta = inPHOS.Theta(); | |
216 | ||
f74a631d | 217 | Bool_t skip = kTRUE; |
a494460a | 218 | for (Int_t imod=0; imod<nModules; imod++) { |
0d9aa319 | 219 | //PH Loop on modules to check if the track enters in the acceptance |
f74a631d | 220 | if (thmin[imod] < inTheta && thmax[imod] > inTheta && |
221 | phmin[imod] < inPhi && phmax[imod] > inPhi) { | |
222 | skip = kFALSE; | |
0d9aa319 | 223 | break; |
224 | } | |
225 | } | |
226 | if (skip) continue; //PH Skip, if not in the PHOS acceptance | |
227 | ||
c84a5e9e | 228 | if (!track->GetPxPyPzAt(rPHOS, fESD->GetMagneticField(), pxyz)) |
23904d16 | 229 | continue; // track momentum ibid. |
7b51037f | 230 | PropagateToPlane(vecDist,xyz,pxyz,"CPV",cpvClu->GetPHOSMod()); |
e718c158 | 231 | // Info("GetDistanceInPHOSPlane","Track %d propagation to CPV = (%f,%f,%f)", |
232 | // iTrack,vecDist.X(),vecDist.Y(),vecDist.Z()); | |
aa0b9641 | 233 | vecDist -= vecCpv; |
194f9939 | 234 | distance2Track = TMath::Sqrt(vecDist.X()*vecDist.X() + vecDist.Z()*vecDist.Z()); |
aa0b9641 | 235 | // Find the closest track to the EMC recpoint |
194f9939 | 236 | if (distance2Track < minDistance) { |
237 | minDistance = distance2Track; | |
aa0b9641 | 238 | iClosestTrack = iTrack; |
239 | } | |
240 | } | |
241 | ||
0d9aa319 | 242 | delete [] thmin; |
243 | delete [] thmax; | |
244 | delete [] phmin; | |
245 | delete [] phmax; | |
246 | ||
aa0b9641 | 247 | if (iClosestTrack != -1) { |
248 | track = fESD->GetTrack(iClosestTrack); | |
c84a5e9e | 249 | if (track->GetPxPyPzAt(rPHOS, fESD->GetMagneticField(), pxyz)) { // track momentum ibid. |
aa0b9641 | 250 | TVector3 vecCpvGlobal; // Global position of the CPV recpoint |
aa0b9641 | 251 | geom->GetGlobal((AliRecPoint*)cpvClu,vecCpvGlobal); |
252 | for (Int_t ixyz=0; ixyz<3; ixyz++) | |
253 | xyz[ixyz] = vecCpvGlobal[ixyz]; | |
7b51037f | 254 | PropagateToPlane(vecDist,xyz,pxyz,"EMC",cpvClu->GetPHOSMod()); |
bfc17d18 | 255 | // Info("GetDistanceInPHOSPlane","Track %d propagation to EMC = (%f,%f,%f)", |
256 | // iClosestTrack,vecDist.X(),vecDist.Y(),vecDist.Z()); | |
aa0b9641 | 257 | vecDist -= vecEmc; |
194f9939 | 258 | distance2Track = TMath::Sqrt(vecDist.X()*vecDist.X() + vecDist.Z()*vecDist.Z()); |
23904d16 | 259 | } |
aa0b9641 | 260 | } |
194f9939 | 261 | // } else { |
262 | // // If no ESD exists, than simply find EMC-CPV distance | |
263 | // distance = (vecCpv - vecEmc).Mag() ; | |
264 | ||
743cb288 | 265 | //if(distance2Track < fRcpv + 2*delta ) |
266 | if(distance2Track < fRtpc ) | |
194f9939 | 267 | trackindex = iClosestTrack ; |
268 | // toofar = kFALSE ; | |
aa0b9641 | 269 | } |
194f9939 | 270 | // Info("GetDistanceInPHOSPlane","cpv-emc distance is %f cm", |
271 | // distance); | |
bfc17d18 | 272 | } |
d15a28e7 | 273 | |
194f9939 | 274 | return distance2Cpv ; |
aa0b9641 | 275 | } |
276 | ||
277 | //____________________________________________________________________________ | |
7b51037f | 278 | void AliPHOSTrackSegmentMakerv1::PropagateToPlane(TVector3& globalIntersection, |
279 | Double_t *x, | |
280 | Double_t *p, | |
281 | const char *det, | |
282 | Int_t moduleNumber) const | |
aa0b9641 | 283 | { |
284 | // Propagate a straight-line track from the origin point x | |
bfc17d18 | 285 | // along the direction p to the CPV or EMC module moduleNumber |
aa0b9641 | 286 | // Returns a local position of such a propagation |
287 | ||
288 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
289 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; | |
7b51037f | 290 | TVector3 moduleCenter; |
291 | geom->GetModuleCenter(moduleCenter,det,moduleNumber); | |
292 | TVector3 vertex; vertex.SetXYZ(x[0],x[1],x[2]); | |
293 | TVector3 direction; direction.SetXYZ(p[0],p[1],p[2]); | |
aa0b9641 | 294 | |
bfc17d18 | 295 | // Info("PropagateToCPV","Center of the %s module %d is (%f,%f,%f)", |
296 | // det,moduleNumber,moduleCenter[0],moduleCenter[1],moduleCenter[2]); | |
395f4eea | 297 | |
aa0b9641 | 298 | Double_t time = (moduleCenter.Mag2() - vertex.Dot(moduleCenter)) / |
299 | (direction.Dot(moduleCenter)); | |
7b51037f | 300 | vertex += direction*time; |
301 | geom->Global2Local(globalIntersection,vertex,moduleNumber); | |
d15a28e7 | 302 | } |
303 | ||
7b7c1533 | 304 | //____________________________________________________________________________ |
305 | void AliPHOSTrackSegmentMakerv1::Init() | |
306 | { | |
307 | // Make all memory allocations that are not possible in default constructor | |
308 | ||
adcca1e6 | 309 | AliPHOSGetter* gime = AliPHOSGetter::Instance(); |
310 | if(!gime) | |
311 | gime = AliPHOSGetter::Instance(GetTitle(), fEventFolderName.Data()); | |
fbf811ec | 312 | |
7b7c1533 | 313 | fLinkUpArray = new TClonesArray("AliPHOSLink", 1000); |
88cb7938 | 314 | if ( !gime->TrackSegmentMaker() ) { |
315 | gime->PostTrackSegmentMaker(this); | |
316 | } | |
7b7c1533 | 317 | } |
318 | ||
8d0f3f77 | 319 | //____________________________________________________________________________ |
320 | void AliPHOSTrackSegmentMakerv1::InitParameters() | |
321 | { | |
e957fea8 | 322 | //Initializes parameters |
743cb288 | 323 | fRcpv = 10. ; |
324 | fRtpc = 4. ; | |
8d0f3f77 | 325 | fEmcFirst = 0 ; |
326 | fEmcLast = 0 ; | |
327 | fCpvFirst = 0 ; | |
328 | fCpvLast = 0 ; | |
329 | fLinkUpArray = 0 ; | |
adcca1e6 | 330 | fWrite = kTRUE ; |
88cb7938 | 331 | fTrackSegmentsInRun = 0 ; |
eabde521 | 332 | SetEventRange(0,-1) ; |
8d0f3f77 | 333 | } |
334 | ||
335 | ||
d15a28e7 | 336 | //____________________________________________________________________________ |
baef0810 | 337 | void AliPHOSTrackSegmentMakerv1::MakeLinks()const |
d15a28e7 | 338 | { |
194f9939 | 339 | // Finds distances (links) between all EMC and CPV clusters, |
fbf811ec | 340 | // which are not further apart from each other than fRcpv |
f035f6ce | 341 | // and sort them in accordance with this distance |
9688c1dd | 342 | |
88cb7938 | 343 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
fbf811ec | 344 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
345 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
7b7c1533 | 346 | |
2731cd1e | 347 | fLinkUpArray->Clear() ; |
2731cd1e | 348 | |
2bb500e5 | 349 | AliPHOSCpvRecPoint * cpv ; |
92862013 | 350 | AliPHOSEmcRecPoint * emcclu ; |
28c3a259 | 351 | |
d15a28e7 | 352 | Int_t iLinkUp = 0 ; |
353 | ||
28c3a259 | 354 | Int_t iEmcRP; |
2731cd1e | 355 | for(iEmcRP = fEmcFirst; iEmcRP < fEmcLast; iEmcRP++ ) { |
29b077b5 | 356 | emcclu = dynamic_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(iEmcRP)) ; |
2731cd1e | 357 | |
194f9939 | 358 | //Bool_t toofar ; |
2731cd1e | 359 | Int_t iCpv = 0 ; |
360 | for(iCpv = fCpvFirst; iCpv < fCpvLast;iCpv++ ) { | |
28c3a259 | 361 | |
2bb500e5 | 362 | cpv = dynamic_cast<AliPHOSCpvRecPoint *>(cpvRecPoints->At(iCpv)) ; |
194f9939 | 363 | Int_t track = -1 ; |
364 | Float_t r = GetDistanceInPHOSPlane(emcclu, cpv, track) ; | |
365 | // if(toofar) | |
366 | // continue ; | |
fbf811ec | 367 | if(r < fRcpv) { |
194f9939 | 368 | new ((*fLinkUpArray)[iLinkUp++]) AliPHOSLink(r, iEmcRP, iCpv, track) ; |
28c3a259 | 369 | } |
d15a28e7 | 370 | } |
28c3a259 | 371 | } |
d15a28e7 | 372 | |
9688c1dd | 373 | fLinkUpArray->Sort() ; //first links with smallest distances |
d15a28e7 | 374 | } |
28c3a259 | 375 | |
d15a28e7 | 376 | //____________________________________________________________________________ |
2731cd1e | 377 | void AliPHOSTrackSegmentMakerv1::MakePairs() |
6ad0bfa0 | 378 | { |
f035f6ce | 379 | // Using the previously made list of "links", we found the smallest link - i.e. |
a4e98857 | 380 | // link with the least distance between EMC and CPV and pointing to still |
f035f6ce | 381 | // unassigned RecParticles. We assign these RecPoints to TrackSegment and |
382 | // remove them from the list of "unassigned". | |
88cb7938 | 383 | |
384 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; | |
385 | ||
fbf811ec | 386 | TObjArray * emcRecPoints = gime->EmcRecPoints() ; |
387 | TObjArray * cpvRecPoints = gime->CpvRecPoints() ; | |
88cb7938 | 388 | TClonesArray * trackSegments = gime->TrackSegments(); |
9688c1dd | 389 | |
01a599c9 | 390 | //Make arrays to mark clusters already chosen |
2731cd1e | 391 | Int_t * emcExist = 0; |
392 | if(fEmcLast > fEmcFirst) | |
393 | emcExist = new Int_t[fEmcLast-fEmcFirst] ; | |
394 | ||
395 | Int_t index; | |
396 | for(index = 0; index <fEmcLast-fEmcFirst; index ++) | |
397 | emcExist[index] = 1 ; | |
398 | ||
399 | Bool_t * cpvExist = 0; | |
400 | if(fCpvLast > fCpvFirst) | |
401 | cpvExist = new Bool_t[fCpvLast-fCpvFirst] ; | |
402 | for(index = 0; index <fCpvLast-fCpvFirst; index ++) | |
403 | cpvExist[index] = kTRUE ; | |
404 | ||
2731cd1e | 405 | |
406 | // Finds the smallest links and makes pairs of CPV and EMC clusters with smallest distance | |
2731cd1e | 407 | TIter nextUp(fLinkUpArray) ; |
d15a28e7 | 408 | |
d15a28e7 | 409 | AliPHOSLink * linkUp ; |
9688c1dd | 410 | |
2bb500e5 | 411 | AliPHOSCpvRecPoint * nullpointer = 0 ; |
9688c1dd | 412 | |
29b077b5 | 413 | while ( (linkUp = static_cast<AliPHOSLink *>(nextUp()) ) ){ |
9688c1dd | 414 | |
194f9939 | 415 | if(emcExist[linkUp->GetEmc()-fEmcFirst] != -1){ |
d15a28e7 | 416 | |
194f9939 | 417 | if(cpvExist[linkUp->GetCpv()-fCpvFirst]){ //CPV still exist |
418 | new ((* trackSegments)[fNTrackSegments]) | |
419 | AliPHOSTrackSegment(dynamic_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(linkUp->GetEmc())) , | |
420 | dynamic_cast<AliPHOSCpvRecPoint *>(cpvRecPoints->At(linkUp->GetCpv())) , | |
421 | linkUp->GetTrack()) ; | |
422 | ||
88cb7938 | 423 | (dynamic_cast<AliPHOSTrackSegment *>(trackSegments->At(fNTrackSegments)))->SetIndexInList(fNTrackSegments); |
424 | fNTrackSegments++ ; | |
88cb7938 | 425 | emcExist[linkUp->GetEmc()-fEmcFirst] = -1 ; //Mark emc that Cpv was found |
426 | //mark CPV recpoint as already used | |
194f9939 | 427 | cpvExist[linkUp->GetCpv()-fCpvFirst] = kFALSE ; |
428 | } //if CpvUp still exist | |
28c3a259 | 429 | } |
88cb7938 | 430 | } |
28c3a259 | 431 | |
194f9939 | 432 | //look through emc recPoints left without CPV |
2731cd1e | 433 | if(emcExist){ //if there is emc rec point |
434 | Int_t iEmcRP ; | |
435 | for(iEmcRP = 0; iEmcRP < fEmcLast-fEmcFirst ; iEmcRP++ ){ | |
436 | if(emcExist[iEmcRP] > 0 ){ | |
88cb7938 | 437 | new ((*trackSegments)[fNTrackSegments]) |
438 | AliPHOSTrackSegment(dynamic_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(iEmcRP+fEmcFirst)), | |
439 | nullpointer) ; | |
440 | (dynamic_cast<AliPHOSTrackSegment *>(trackSegments->At(fNTrackSegments)))->SetIndexInList(fNTrackSegments); | |
441 | fNTrackSegments++; | |
2731cd1e | 442 | } |
d15a28e7 | 443 | } |
d15a28e7 | 444 | } |
780a31c1 | 445 | delete [] emcExist ; |
446 | delete [] cpvExist ; | |
d15a28e7 | 447 | } |
448 | ||
449 | //____________________________________________________________________________ | |
eabde521 | 450 | void AliPHOSTrackSegmentMakerv1::Exec(Option_t *option) |
d15a28e7 | 451 | { |
eabde521 | 452 | // Steering method to perform track segment construction for events |
453 | // in the range from fFirstEvent to fLastEvent. | |
454 | // This range is optionally set by SetEventRange(). | |
455 | // if fLastEvent=-1 (by default), then process events until the end. | |
88cb7938 | 456 | |
2731cd1e | 457 | if(strstr(option,"tim")) |
b3f97575 | 458 | gBenchmark->Start("PHOSTSMaker"); |
7b7c1533 | 459 | |
460 | if(strstr(option,"print")) { | |
88cb7938 | 461 | Print() ; |
7b7c1533 | 462 | return ; |
463 | } | |
88cb7938 | 464 | |
adcca1e6 | 465 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
fb43ada4 | 466 | |
55ea5766 | 467 | const AliPHOSGeometry * geom = gime->PHOSGeometry() ; |
7b7c1533 | 468 | |
0588c896 | 469 | if (fLastEvent == -1) |
470 | fLastEvent = gime->MaxEvent() - 1 ; | |
471 | else | |
472 | fLastEvent = TMath::Min(fFirstEvent,gime->MaxEvent()); | |
eabde521 | 473 | Int_t nEvents = fLastEvent - fFirstEvent + 1; |
01a599c9 | 474 | |
fb43ada4 | 475 | Int_t ievent ; |
476 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
aa0b9641 | 477 | gime->Event(ievent,"R") ; |
0588c896 | 478 | //Make some initializations |
55ea5766 | 479 | fNTrackSegments = 0 ; |
480 | fEmcFirst = 0 ; | |
481 | fEmcLast = 0 ; | |
482 | fCpvFirst = 0 ; | |
483 | fCpvLast = 0 ; | |
88cb7938 | 484 | |
485 | gime->TrackSegments()->Clear(); | |
55ea5766 | 486 | |
9688c1dd | 487 | // if(!ReadRecPoints(ievent)) continue; //reads RecPoints for event ievent |
488 | ||
88cb7938 | 489 | for(fModule = 1; fModule <= geom->GetNModules() ; fModule++ ) { |
2731cd1e | 490 | FillOneModule() ; |
2731cd1e | 491 | MakeLinks() ; |
2731cd1e | 492 | MakePairs() ; |
2731cd1e | 493 | } |
28c3a259 | 494 | |
90cceaf6 | 495 | WriteTrackSegments() ; |
7b7c1533 | 496 | |
2731cd1e | 497 | if(strstr(option,"deb")) |
88cb7938 | 498 | PrintTrackSegments(option); |
94de8339 | 499 | |
500 | //increment the total number of track segments per run | |
88cb7938 | 501 | fTrackSegmentsInRun += gime->TrackSegments()->GetEntriesFast() ; |
2731cd1e | 502 | } |
88cb7938 | 503 | |
2731cd1e | 504 | if(strstr(option,"tim")){ |
505 | gBenchmark->Stop("PHOSTSMaker"); | |
21cd0c07 | 506 | Info("Exec", "took %f seconds for making TS %f seconds per event", |
88cb7938 | 507 | gBenchmark->GetCpuTime("PHOSTSMaker"), |
eabde521 | 508 | gBenchmark->GetCpuTime("PHOSTSMaker")/nEvents) ; |
88cb7938 | 509 | } |
adcca1e6 | 510 | if(fWrite) //do not unload in "on flight" mode |
511 | Unload(); | |
88cb7938 | 512 | } |
513 | ||
514 | //____________________________________________________________________________ | |
515 | void AliPHOSTrackSegmentMakerv1::Unload() | |
516 | { | |
e957fea8 | 517 | // Unloads the task from the folder |
88cb7938 | 518 | AliPHOSGetter * gime = AliPHOSGetter::Instance() ; |
519 | gime->PhosLoader()->UnloadRecPoints() ; | |
520 | gime->PhosLoader()->UnloadTracks() ; | |
d15a28e7 | 521 | } |
7b7c1533 | 522 | |
d15a28e7 | 523 | //____________________________________________________________________________ |
702ab87e | 524 | void AliPHOSTrackSegmentMakerv1::Print(const Option_t *)const |
a4e98857 | 525 | { |
baef0810 | 526 | // Print TrackSegmentMaker parameters |
527 | ||
21cd0c07 | 528 | TString message("") ; |
7b7c1533 | 529 | if( strcmp(GetName(), "") != 0 ) { |
21cd0c07 | 530 | message = "\n======== AliPHOSTrackSegmentMakerv1 ========\n" ; |
531 | message += "Making Track segments\n" ; | |
532 | message += "with parameters:\n" ; | |
194f9939 | 533 | message += " Maximal EMC - CPV distance (cm) %f\n" ; |
21cd0c07 | 534 | message += "============================================\n" ; |
535 | Info("Print", message.Data(),fRcpv) ; | |
2731cd1e | 536 | } |
537 | else | |
21cd0c07 | 538 | Info("Print", "AliPHOSTrackSegmentMakerv1 not initialized ") ; |
d15a28e7 | 539 | } |
7b7c1533 | 540 | |
d15a28e7 | 541 | //____________________________________________________________________________ |
90cceaf6 | 542 | void AliPHOSTrackSegmentMakerv1::WriteTrackSegments() |
a4e98857 | 543 | { |
f035f6ce | 544 | // Writes found TrackSegments to TreeR. Creates branches |
545 | // "PHOSTS" and "AliPHOSTrackSegmentMaker" with the same title. | |
546 | // In the former branch found TrackSegments are stored, while | |
547 | // in the latter all parameters, with which TS were made. | |
548 | // ROOT does not allow overwriting existing branches, therefore | |
a4e98857 | 549 | // first we check, if branches with the same title already exist. |
f035f6ce | 550 | // If yes - exits without writing. |
88cb7938 | 551 | |
552 | AliPHOSGetter *gime = AliPHOSGetter::Instance() ; | |
55ea5766 | 553 | |
fbf811ec | 554 | TClonesArray * trackSegments = gime->TrackSegments() ; |
55ea5766 | 555 | trackSegments->Expand(trackSegments->GetEntriesFast()) ; |
8d0f3f77 | 556 | |
adcca1e6 | 557 | if(fWrite){ //We write TreeT |
558 | TTree * treeT = gime->TreeT(); | |
559 | ||
560 | //First TS | |
561 | Int_t bufferSize = 32000 ; | |
562 | TBranch * tsBranch = treeT->Branch("PHOSTS",&trackSegments,bufferSize); | |
563 | tsBranch->Fill() ; | |
564 | ||
565 | gime->WriteTracks("OVERWRITE"); | |
566 | gime->WriteTrackSegmentMaker("OVERWRITE"); | |
567 | } | |
2731cd1e | 568 | } |
98cbd830 | 569 | |
98cbd830 | 570 | |
2731cd1e | 571 | //____________________________________________________________________________ |
a4e98857 | 572 | void AliPHOSTrackSegmentMakerv1::PrintTrackSegments(Option_t * option) |
573 | { | |
f035f6ce | 574 | // option deb - prints # of found TrackSegments |
575 | // option deb all - prints as well indexed of found RecParticles assigned to the TS | |
9688c1dd | 576 | |
88cb7938 | 577 | TClonesArray * trackSegments = AliPHOSGetter::Instance()->TrackSegments() ; |
21cd0c07 | 578 | |
88cb7938 | 579 | Info("PrintTrackSegments", "Results from TrackSegmentMaker:") ; |
580 | printf("nevent: %d\n", gAlice->GetEvNumber()) ; | |
581 | printf(" Found %d TrackSegments\n", trackSegments->GetEntriesFast() ); | |
582 | ||
2731cd1e | 583 | if(strstr(option,"all")) { // printing found TS |
88cb7938 | 584 | printf("TrackSegment # EMC RP# CPV RP#\n") ; |
2731cd1e | 585 | Int_t index; |
7b7c1533 | 586 | for (index = 0 ; index <trackSegments->GetEntriesFast() ; index++) { |
587 | AliPHOSTrackSegment * ts = (AliPHOSTrackSegment * )trackSegments->At(index) ; | |
88cb7938 | 588 | printf(" %d %d %d \n", ts->GetIndexInList(), ts->GetEmcIndex(), ts->GetCpvIndex() ) ; |
2731cd1e | 589 | } |
d15a28e7 | 590 | } |
2731cd1e | 591 | } |