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19 Revision 1.7 2002/10/23 07:24:56 alibrary
20 Introducing Riostream.h
22 Revision 1.6 2001/05/16 14:57:17 alibrary
23 New files for folders and Stack
25 Revision 1.5 2001/05/11 07:59:03 hristov
28 Revision 1.4 2001/01/26 20:00:53 hristov
29 Major upgrade of AliRoot code
31 Revision 1.3 2000/12/21 17:51:54 morsch
32 RN3 violations corrected
34 Revision 1.2 2000/11/23 10:09:38 gosset
35 Bug correction in AliMUONRecoDisplay.
37 Copyright, Revision 1.7 2002/10/23 07:24:56 alibrary
38 Copyright, Introducing Riostream.h
40 Copyright, Revision 1.6 2001/05/16 14:57:17 alibrary
41 Copyright, New files for folders and Stack
43 Copyright, Revision 1.5 2001/05/11 07:59:03 hristov
44 Copyright, Index corrected
46 Copyright, Revision 1.4 2001/01/26 20:00:53 hristov
47 Copyright, Major upgrade of AliRoot code
49 Copyright, Revision 1.3 2000/12/21 17:51:54 morsch
50 Copyright, RN3 violations corrected
51 Copyright,, $Id$, comments at the right place for automatic documentation,
52 in AliMUONRecoEvent and AliMUONRecoDisplay
57 //Authors: Mihaela Gheata, Andrei Gheata 09/10/00
58 ////////////////////////////////////////////////////////////////////
60 // AliMUONRecoEvent, AliMUONRecoTrack (and AliMUONRecoDisplay) //
62 // Theses classes are used to store and retrieve //
63 // MUON reconstructed events. //
64 // The corresponding tree is constructed and filled //
65 // during the FillEvent() method of AliMUONEventReconstructor, //
66 // when all reconstruction information is available. //
68 ////////////////////////////////////////////////////////////////////
69 ////////////////////////////////////////////////////////////////////
71 // AliMUONRecoEvent //
73 // This class handles an array of reconstructed tracks. //
75 // - filling the tracks array according to the information //
76 // stored in AliMUONEventReconstructor class ; //
77 // - printing event and track informations : event numer, //
78 // number of tracks, hits positions, reconstr. mometum. //
80 ////////////////////////////////////////////////////////////////////
81 ////////////////////////////////////////////////////////////////////
83 // AliMUONRecoTrack //
85 // This class represents a reconstructed muon track //
86 // in the tree of reconstructed events. //
88 ////////////////////////////////////////////////////////////////////
90 #include <Riostream.h>
92 #include <TClonesArray.h>
97 #include <TParticle.h>
99 #include "AliMUONRecoEvent.h"
100 #include "AliMUONEventReconstructor.h"
101 #include "AliMUONTrack.h"
102 #include "AliMUONTrackK.h"
103 #include "AliMUONTrackParam.h"
104 #include "AliMUONHitForRec.h"
105 #include "AliMUONTrackHit.h"
106 #include "AliHeader.h"
108 ClassImp(AliMUONRecoTrack)
109 ClassImp(AliMUONRecoEvent)
111 //-------------------------------------------------------------------
112 AliMUONRecoEvent::AliMUONRecoEvent(Int_t eventNo)
114 // Reconstructed event constructor
115 fTracks = new TClonesArray("AliMUONRecoTrack",200);
120 //-------------------------------------------------------------------
121 AliMUONRecoEvent::~AliMUONRecoEvent()
123 // Destructor of AliMUONRecoEvent
129 //-------------------------------------------------------------------
130 AliMUONRecoTrack* AliMUONRecoEvent::AddEmptyTrack()
132 // Add a empty AliMUONRecoTrackObject to the track list
133 TClonesArray &dumptracks = *fTracks;
134 return (new(dumptracks[fNtracks++])AliMUONRecoTrack(kTRUE));
137 //-------------------------------------------------------------------
138 void AliMUONRecoEvent::Clear(Option_t *option)
140 // Clears all track pointers from the list
141 // fTracks->Clear(option);
146 //-------------------------------------------------------------------
147 void AliMUONRecoEvent::EventInfo()
149 // Prints reconstructed event information
150 cout << "*********************Reco Dumper**************************" << endl;
151 cout << "Event number : " << fNevr << endl;
152 cout << " Number of tracks : " << fNtracks << endl;
153 AliMUONRecoTrack *currentTrack =0;
154 Int_t trackIndex = 0;
155 for(trackIndex=0; trackIndex<fNtracks; trackIndex++) {
156 currentTrack = (AliMUONRecoTrack*)fTracks->UncheckedAt(trackIndex);
157 cout << "Track : " << trackIndex << endl;
158 cout << " Sign : " << currentTrack->GetSign() << endl;
159 cout << " Vertex position : " << currentTrack->GetVertexPos() << endl;
161 for (Int_t axis=0; axis<3; axis++) {
162 momreco[axis] = currentTrack->GetMomReconstr(axis);
164 cout << " Reconstructed mom. : " << "Px=" << momreco[0] << "Py=" << momreco[1] << "Pz=" << momreco[2] << endl;
165 cout << " Chi squared : " << currentTrack->GetChi2r() << endl;
166 cout << " Hits positions : " << endl;
167 Double_t xhit, yhit, zhit;
168 for (Int_t chamber=0; chamber<10; chamber++) {
169 xhit = currentTrack->GetPosX(chamber);
170 yhit = currentTrack->GetPosY(chamber);
171 zhit = currentTrack->GetPosZ(chamber);
172 // cout <<" chamber" << chamber << " X=" << xhit << " Y=" << yhit << " Z=" << zhit << endl;
175 cout << "**********************************************************" << endl;
178 //-------------------------------------------------------------------
179 Bool_t AliMUONRecoEvent::MakeDumpTracks(Int_t muons, TClonesArray *tracksPtr,
180 AliMUONEventReconstructor *EventReco)
182 // This method takes the pointer of the list of reconstructed tracks from
183 // AliMUONEventReconstructor and fill the reconstructed AliMUONRecoEvent
186 cout << "Enter MakeDumpTracks..." << endl;
187 Int_t nTracks = tracksPtr->GetEntriesFast();
188 cout << "nTracks = "<< nTracks << endl;
190 cout << "AliMUONRecoEvent::MakeDumpTracks: Number of tracks is zero !" << endl;
193 cout << tracksPtr << endl;
195 cout << "AliMUONRecoEvent::MakeDumpTracks() : You should call SetRecoTracksPtr() first..." << endl;
199 Int_t noEvent = gAlice->GetHeader()->GetEvent();
200 cout << "noEvent = "<< nTracks << endl;
201 tracksPtr->Compress(); // simple loop
202 AliMUONRecoTrack *currentTrack;
203 Int_t trackIndex, nTrackHits = 0;
204 Double_t z, pYZ, bendingSlope, nonBendingSlope;
205 Double_t pX, pY, pZ; // reconstructed momentum components
206 Int_t isign, flag=0; // charge sign, flag of reconstructed track
207 Double_t alpha, beta;
208 TObjArray *hitsOnTrack = 0;
209 AliMUONTrackHit *trackHit = 0;
210 AliMUONTrack *track = 0;
211 AliMUONTrackK *trackK = 0;
212 TMatrixD *trackParamK; //AZnon
213 AliMUONTrackParam *trackParam = 0;
214 // Fill event number and number of tracks
216 fMuons = muons; //AZ - number of muons within acceptance
217 // Loop over reconstructed tracks
218 for (trackIndex=0; trackIndex<nTracks; trackIndex++) {
219 cout << " trackIndex = " << trackIndex << endl;
220 currentTrack = AddEmptyTrack();
221 cout << " currentTrack = " << currentTrack << endl;
223 if (EventReco->GetTrackMethod() == 2) { // Kalman
225 trackK = (AliMUONTrackK*) ((*tracksPtr)[trackIndex]);
226 nTrackHits = trackK->GetNTrackHits();
227 trackParamK = trackK->GetTrackParameters();
228 isign = Int_t(TMath::Sign(1., (*trackParamK)(4,0)));
230 alpha = (*trackParamK)(2,0);
231 beta = (*trackParamK)(3,0);
232 pYZ = TMath::Cos(beta)/TMath::Abs((*trackParamK)(4,0));
233 pZ = pYZ/TMath::Cos(alpha);
234 pX = TMath::Sin(beta)/TMath::Abs((*trackParamK)(4,0));
235 pY = pYZ*TMath::Sin(alpha);
237 currentTrack->SetVertexPos(z);
238 currentTrack->SetMomReconstr(pX,pY,pZ);
239 currentTrack->SetSign(isign);
240 currentTrack->SetChi2r(trackK->GetTrackQuality());
242 // Check hits on the track
243 hitsOnTrack = trackK->GetHitOnTrack();
246 for (int ihit = 0; ihit < nTrackHits; ihit++) {
247 signal += ((AliMUONHitForRec*)((*hitsOnTrack)[ihit]))->GetGeantSignal();
248 tht += TMath::Min (1,((AliMUONHitForRec*)((*hitsOnTrack)[ihit]))->GetTHTrack());
250 signal /= nTrackHits;
253 if (TMath::Nint(signal) > 0) { // signal muon
254 for (int ihit = 0; ihit < nTrackHits ; ihit++) {
255 if (((AliMUONHitForRec*)((*hitsOnTrack)[ihit]))->GetTHTrack() != TMath::Nint(tht)) flag++;
257 } else flag = -9; // background track
258 //cout << TMath::Nint(signal) << " " << TMath::Nint(tht) << " " << recTrackNt->fFlag << endl;
259 currentTrack->SetFlag(flag);
260 } else { // default tracking
262 track = (AliMUONTrack*) ((*tracksPtr)[trackIndex]);
263 nTrackHits = track->GetNTrackHits();
264 // track parameters at Vertex
265 trackParam = track->GetTrackParamAtVertex();
266 bendingSlope = trackParam->GetBendingSlope();
267 nonBendingSlope = trackParam->GetNonBendingSlope();
269 z = trackParam->GetZ();
270 pYZ = 1/TMath::Abs(trackParam->GetInverseBendingMomentum());
271 pZ = pYZ/TMath::Sqrt(1+bendingSlope*bendingSlope);
272 pX = pZ * nonBendingSlope;
273 pY = pZ * bendingSlope;
275 if (trackParam->GetInverseBendingMomentum()<0) isign=-1; else isign=1;
276 currentTrack->SetVertexPos(z);
277 currentTrack->SetMomReconstr(pX,pY,pZ);
278 currentTrack->SetSign(isign);
279 // currentTrack->SetChi2r(trackParam->GetChi2());
280 currentTrack->SetChi2r(0);
282 // Check hits on the track
283 hitsOnTrack = track->GetTrackHitsPtr();
286 AliMUONHitForRec *hitForRec = 0;
287 for (int ihit = 0; ihit < nTrackHits; ihit++) {
288 hitForRec = ((AliMUONTrackHit*)(*hitsOnTrack)[ihit])->GetHitForRecPtr();
289 signal += hitForRec->GetGeantSignal();
290 tht += TMath::Min (1,hitForRec->GetTHTrack());
292 signal /= nTrackHits;
295 if (TMath::Nint(signal) > 0) { // signal muon
296 for (int ihit = 0; ihit < nTrackHits ; ihit++) {
297 hitForRec = ((AliMUONTrackHit*)(*hitsOnTrack)[ihit])->GetHitForRecPtr();
298 if (hitForRec->GetTHTrack() != TMath::Nint(tht)) flag++;
300 } else flag = -9; // background track
301 //cout << TMath::Nint(signal) << " " << TMath::Nint(tht) << " " << recTrackNt->fFlag << endl;
302 currentTrack->SetFlag(flag);
305 Double_t xhit,yhit,zhit;
306 // Loop over track hits
307 for (Int_t trackHitIndex = 0; trackHitIndex < nTrackHits; trackHitIndex++) {
308 if (EventReco->GetTrackMethod() == 2) { // Kalman
309 xhit = ((AliMUONHitForRec*)((*hitsOnTrack)[trackHitIndex]))->GetNonBendingCoor();
310 yhit = ((AliMUONHitForRec*)((*hitsOnTrack)[trackHitIndex]))->GetBendingCoor();
311 zhit = ((AliMUONHitForRec*)((*hitsOnTrack)[trackHitIndex]))->GetZ();
313 trackHit = (AliMUONTrackHit*) (*(track->GetTrackHitsPtr()))[trackHitIndex];
314 xhit = trackHit->GetHitForRecPtr()->GetNonBendingCoor();
315 yhit = trackHit->GetHitForRecPtr()->GetBendingCoor();
316 zhit = trackHit->GetHitForRecPtr()->GetZ();
318 if (trackHitIndex >= 0 && trackHitIndex < 10) {
319 currentTrack->SetHitPosition(trackHitIndex,xhit,yhit,zhit);
320 } else { cout << "track " << trackIndex << " hit out of range" << endl;}
324 cout << "Leave MakeDumpTracks..." << endl;
328 //-------------------------------------------------------------------
329 void AliMUONRecoEvent::Streamer(TBuffer &R__b)
331 // Streams an object of class AliMUONRecoEvent
332 if (R__b.IsReading()) {
334 AliMUONRecoEvent::Class()->ReadBuffer(R__b, this);
336 cout << "...writing event to file...\n";
337 AliMUONRecoEvent::Class()->WriteBuffer(R__b, this);
341 //-------------------------------------------------------------------
342 AliMUONRecoTrack::AliMUONRecoTrack(Bool_t active)
344 //Constructor of AliMUONRecoTrack
349 for (Int_t axis=0; axis<3; axis++) {
352 for (Int_t chamber=0; chamber<10; chamber++) {
353 fPosX[chamber] = 0.0;
354 fPosY[chamber] = 0.0;
355 fPosZ[chamber] = 0.0;
360 //-------------------------------------------------------------------
361 const Double_t AliMUONRecoTrack::Phi()
363 // Return trach phi angle
364 return TMath::ATan2(fPr[2], fPr[1]);
367 //-------------------------------------------------------------------
368 const Double_t AliMUONRecoTrack::Theta()
370 // Return trach theta angle
371 return TMath::ACos(fPr[2] / P());
374 //-------------------------------------------------------------------
375 void AliMUONRecoTrack::SetMomReconstr(Double_t px, Double_t py, Double_t pz)
377 // Set the track reconstructed momentum
383 //-------------------------------------------------------------------
384 void AliMUONRecoTrack::SetHitPosition(Int_t chamber, Double_t x, Double_t y, Double_t z)
386 // Set hit coordinates in chamber[0..9]
391 //-------------------------------------------------------------------
392 void AliMUONRecoTrack::TrackInfo()
394 // Prints momentum info for this track
395 cout << "Px=" << GetMomReconstr(0) << " Py=" << GetMomReconstr(1) <<
396 " Pz=" << GetMomReconstr(2) << " P=" << P() << endl;