MUON/MUONClusterInfo.C

   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 /* $Id$ */
  17
  18 /// \ingroup macros
  19 /// \file MUONClusterInfo.C
  20 /// \brief Macro to fill AliMUONClusterInfo objects
  21 ///
  22 /// \author Philippe Pillot, SUBATECH
  23
  24 #if !defined(__CINT__) || defined(__MAKECINT__)
  25 #include <TStopwatch.h>
  26 #include <TFile.h>
  27 #include <TObjArray.h>
  28 #include <TTree.h>
  29 #include <TString.h>
  30 #include <Riostream.h>
  31 #include <TRandom.h>
  32 #include <TROOT.h>
  33 #include <TMath.h>
  34
  35 // STEER includes
  36 #include "AliESDEvent.h"
  37 #include "AliRecoParam.h"
  38 #include "AliCDBManager.h"
  39 #include "AliRunLoader.h"
  40 #include "AliLoader.h"
  41 #include "AliHeader.h"
  42
  43 // MUON includes
  44 #include "AliMpConstants.h"
  45 #include "AliMpSegmentation.h"
  46 #include "AliMpVSegmentation.h"
  47 #include "AliMpPad.h"
  48 #include "AliMUONCDB.h"
  49 #include "AliMUONCalibrationData.h"
  50 #include "AliMUONVCalibParam.h"
  51 #include "AliMUONPadInfo.h"
  52 #include "AliMUONClusterInfo.h"
  53 #include "AliMUONRecoParam.h"
  54 #include "AliMUONESDInterface.h"
  55 #include "AliMUONVDigit.h"
  56 #include "AliMUONVDigitStore.h"
  57 #include "AliMUONVCluster.h"
  58 #include "AliMUONVClusterStore.h"
  59 #include "AliMUONTrack.h"
  60 #include "AliMUONTrackParam.h"
  61 #endif
  62
  63 const Int_t printLevel = 1;
  64
  65 TTree* GetESDTree(TFile *esdFile);
  66 UInt_t buildClusterMap(AliMUONTrack &track);
  67
  68 //-----------------------------------------------------------------------
  69 void MUONClusterInfo(Int_t nevents = -1, const char* esdFileName = "AliESDs.root", const char* inFileName = "galice.root",
  70                      const TString ocdbPath = "local://$ALICE_ROOT/OCDB", const char* outFileName = "clusterInfo.root")
  71 {
  72   /// 1) if (esdFileName != "")
  73   /// loop over ESD event and fill AliMUONClusterInfo object with cluster + corresponding track parameters;
  74   /// 2) if (inFileName != "")
  75   /// loop over RecPoints and fill AliMUONClusterInfo object with cluster not attached to a track;
  76   /// 3) write results in a new root file.
  77   ///
  78   /// ******************************************* WARNING ******************************************* ///
  79   /// track parameters at each cluster are recomputed by the interface using Kalman filter + Smoother ///
  80   /// (It can be changed by resetting the tracker in the interface with a new recoParam object)       ///
  81   /// and the magnetic field set in the function prepare()                                            ///
  82   /// ******************************************* WARNING ******************************************* ///
  83
  84   Bool_t useESD = (strcmp(esdFileName,""));
  85   Bool_t useRecPoints = (strcmp(inFileName,""));
  86   if (!useESD && !useRecPoints) {
  87     Error("MUONClusterInfo","you must provide ESD and/or galice root file(s)");
  88     return;
  89   }
  90
  91   AliMUONClusterInfo* clusterInfo = new AliMUONClusterInfo();
  92   AliMUONPadInfo padInfo;
  93   AliMUONCalibrationData* calibData = 0x0;
  94   AliMUONESDInterface esdInterface;
  95   AliMUONVClusterStore* clusterStore = 0x0;
  96   AliMUONVDigitStore* digitStore = 0x0;
  97
  98   // open the ESD file and tree and connect the ESD event
  99   TFile* esdFile = 0x0;
 100   TTree* esdTree = 0x0;
 101   AliESDEvent* esd = 0x0;
 102   Int_t runNumber = -1;
 103   if (useESD) {
 104     esdFile = TFile::Open(esdFileName);
 105     esdTree = GetESDTree(esdFile);
 106     esd = new AliESDEvent();
 107     esd->ReadFromTree(esdTree);
 108     if (esdTree->GetEvent(0) <= 0) {
 109       Error("MUONClusterInfo", "no ESD object found for event 0");
 110       return;
 111     }
 112     runNumber = esd->GetRunNumber();
 113   }
 114
 115   // get the cluster from RecPoints
 116   AliRunLoader * rl = 0x0;
 117   AliLoader* MUONLoader = 0x0;
 118   if (useRecPoints) {
 119     rl = AliRunLoader::Open(inFileName,"MUONLoader");
 120     MUONLoader = rl->GetDetectorLoader("MUON");
 121     MUONLoader->LoadRecPoints("READ");
 122     MUONLoader->LoadDigits("READ");
 123     rl->LoadHeader();
 124     if (runNumber < 0) runNumber = rl->GetHeader()->GetRun();
 125   }
 126
 127   // load necessary data from OCDB
 128   AliCDBManager::Instance()->SetDefaultStorage(ocdbPath);
 129   AliCDBManager::Instance()->SetRun(runNumber);
 130   if (!AliMUONCDB::LoadField()) return;
 131   if (!AliMUONCDB::LoadMapping(kTRUE)) return;
 132   AliMUONRecoParam* recoParam = AliMUONCDB::LoadRecoParam();
 133   if (!recoParam) return;
 134
 135   // reset tracker for track restoring initial track parameters at cluster
 136   AliMUONESDInterface::ResetTracker(recoParam);
 137
 138   // prepare access to calibration data
 139   calibData = new AliMUONCalibrationData(runNumber);
 140
 141   // prepare the output tree
 142   gROOT->cd();
 143   TFile* clusterInfoFile = TFile::Open(outFileName, "RECREATE");
 144   clusterInfoFile->SetCompressionLevel(1);
 145
 146   TTree* clusterInfoTree = new TTree("clusterInfoTree","clusterInfoTree");
 147   clusterInfoTree->Branch("clusterInfo", &clusterInfo, 32000, 99);
 148
 149   // timer start...
 150   TStopwatch timer;
 151
 152   // Loop over events
 153   if (useESD) {
 154     if (nevents > 0) nevents = TMath::Min(nevents,(Int_t)esdTree->GetEntries());
 155     else nevents = (Int_t)esdTree->GetEntries();
 156   } else {
 157     if (nevents > 0) nevents = TMath::Min(nevents,(Int_t)rl->GetNumberOfEvents());
 158     else nevents = (Int_t)rl->GetNumberOfEvents();
 159   }
 160   for (Int_t iEvent = 0; iEvent < nevents; iEvent++) {
 161
 162     //----------------------------------------------//
 163     // -------------- process event --------------- //
 164     //----------------------------------------------//
 165     // get the ESD of current event
 166     if (useESD) {
 167       esdTree->GetEvent(iEvent);
 168       if (!esd) {
 169         Error("MUONClusterInfo", "no ESD object found for event %d", iEvent);
 170         return;
 171       }
 172       // load the current esd event
 173       esdInterface.LoadEvent(*esd);
 174       // get digit store
 175       if (!useRecPoints) digitStore = esdInterface.GetDigits();
 176     }
 177
 178     if (useRecPoints) {
 179       if (!(rl->GetEvent(iEvent) == 0)) {
 180         Error("MUONClusterInfo", "unable to load event %d", iEvent);
 181         return;
 182       }
 183       // get the clusters of current event
 184       TTree* treeR = MUONLoader->TreeR();
 185       clusterStore = AliMUONVClusterStore::Create(*treeR);
 186       if ( clusterStore != 0x0 ) {
 187         clusterStore->Clear();
 188         clusterStore->Connect(*treeR);
 189         treeR->GetEvent(0);
 190       }
 191       // get the digits of current event
 192       TTree* treeD = MUONLoader->TreeD();
 193       digitStore = AliMUONVDigitStore::Create(*treeD);
 194       if ( digitStore != 0x0 ) {
 195         digitStore->Clear();
 196         digitStore->Connect(*treeD);
 197         treeD->GetEvent(0);
 198       }
 199     }
 200
 201     //----------------------------------------------//
 202     // ------------- fill cluster info ------------ //
 203     //----------------------------------------------//
 204     // --- loop over the refitted tracks ---
 205     if (useESD) {
 206
 207       TIter nextTrack(esdInterface.CreateTrackIterator());
 208       AliMUONTrack* track;
 209       while ((track = static_cast<AliMUONTrack*>(nextTrack()))) {
 210
 211         UInt_t muonClusterMap = buildClusterMap(*track);
 212
 213         // loop over clusters
 214         AliMUONTrackParam* trackParam = static_cast<AliMUONTrackParam*>(track->GetTrackParamAtCluster()->First());
 215         while (trackParam) {
 216           clusterInfo->Clear("C");
 217
 218           // fill cluster info
 219           AliMUONVCluster* cluster = trackParam->GetClusterPtr();
 220           clusterInfo->SetRunId(esd->GetRunNumber());
 221           clusterInfo->SetEventId(iEvent);
 222           clusterInfo->SetZ(cluster->GetZ());
 223           clusterInfo->SetClusterId(cluster->GetUniqueID());
 224           clusterInfo->SetClusterXY(cluster->GetX(), cluster->GetY());
 225           clusterInfo->SetClusterXYErr(cluster->GetErrX(), cluster->GetErrY());
 226           clusterInfo->SetClusterChi2(cluster->GetChi2());
 227           clusterInfo->SetClusterCharge(cluster->GetCharge());
 228
 229           // fill track info
 230           clusterInfo->SetTrackId(track->GetUniqueID());
 231           clusterInfo->SetTrackXY(trackParam->GetNonBendingCoor(), trackParam->GetBendingCoor());
 232           clusterInfo->SetTrackThetaXY(TMath::ATan(trackParam->GetNonBendingSlope()), TMath::ATan(trackParam->GetBendingSlope()));
 233           clusterInfo->SetTrackP(trackParam->P());
 234           const TMatrixD paramCov = trackParam->GetCovariances();
 235           clusterInfo->SetTrackXYErr(TMath::Sqrt(paramCov(0,0)), TMath::Sqrt(paramCov(2,2)));
 236           clusterInfo->SetTrackChi2(track->GetNormalizedChi2());
 237           clusterInfo->SetTrackCharge((Short_t)trackParam->GetCharge());
 238           clusterInfo->SetTrackNHits(track->GetNClusters());
 239           clusterInfo->SetTrackChamberHitMap(muonClusterMap);
 240
 241           // fill pad info if available
 242           for (Int_t i=0; i<cluster->GetNDigits(); i++) {
 243             AliMUONVDigit* digit = digitStore->FindObject(cluster->GetDigitId(i));
 244             if (!digit) continue;
 245
 246             // pad location
 247             const AliMpVSegmentation* seg = AliMpSegmentation::Instance()->
 248             GetMpSegmentation(digit->DetElemId(),AliMp::GetCathodType(digit->Cathode()));
 249             AliMpPad pad = seg->PadByIndices(digit->PadX(), digit->PadY());
 250
 251             // calibration parameters
 252             AliMUONVCalibParam* ped = calibData->Pedestals(digit->DetElemId(), digit->ManuId());
 253             AliMUONVCalibParam* gain = calibData->Gains(digit->DetElemId(), digit->ManuId());
 254             Int_t manuChannel = digit->ManuChannel();
 255             Int_t planeType = 0;
 256             if ( digit->ManuId() & AliMpConstants::ManuMask(AliMp::kNonBendingPlane)) {
 257               planeType = 1;
 258             }
 259
 260             // fill pad info
 261             padInfo.SetPadId(digit->GetUniqueID());
 262             padInfo.SetPadPlaneType(planeType);
 263             padInfo.SetPadXY(pad.GetPositionX(), pad.GetPositionY());
 264             padInfo.SetPadDimXY(pad.GetDimensionX(), pad.GetDimensionY());
 265             padInfo.SetPadCharge((Double_t)digit->Charge());
 266             padInfo.SetPadADC(digit->ADC());
 267             padInfo.SetSaturated(digit->IsSaturated());
 268             padInfo.SetCalibrated(digit->IsCalibrated());
 269             padInfo.SetPedestal(ped->ValueAsFloatFast(manuChannel,0), ped->ValueAsFloatFast(manuChannel,1));
 270             padInfo.SetGain(gain->ValueAsFloatFast(manuChannel,0), gain->ValueAsFloatFast(manuChannel,1),
 271                             gain->ValueAsFloatFast(manuChannel,2), gain->ValueAsFloatFast(manuChannel,3));
 272
 273             clusterInfo->AddPad(padInfo);
 274           }
 275
 276           // remove clusters attached to a track
 277           if (useRecPoints) {
 278             AliMUONVCluster* cl = clusterStore->FindObject(cluster->GetUniqueID());
 279             if (cl) clusterStore->Remove(*cl);
 280           }
 281
 282           // fill cluster info tree
 283           clusterInfoTree->Fill();
 284
 285           trackParam = static_cast<AliMUONTrackParam*>(track->GetTrackParamAtCluster()->After(trackParam));
 286         }
 287
 288       }
 289
 290     }
 291
 292     // --- loop over clusters not attached to a track ---
 293     if (useRecPoints) {
 294
 295       TIter nextCluster(clusterStore->CreateIterator());
 296       AliMUONVCluster *cluster;
 297       while ( ( cluster = static_cast<AliMUONVCluster*>(nextCluster()) ) ) {
 298
 299         clusterInfo->Clear("C");
 300
 301         // fill cluster info
 302         clusterInfo->SetRunId(rl->GetRunNumber());
 303         clusterInfo->SetEventId(iEvent);
 304         clusterInfo->SetZ(cluster->GetZ());
 305         clusterInfo->SetClusterId(cluster->GetUniqueID());
 306         clusterInfo->SetClusterXY(cluster->GetX(), cluster->GetY());
 307         clusterInfo->SetClusterXYErr(cluster->GetErrX(), cluster->GetErrY());
 308         clusterInfo->SetClusterChi2(cluster->GetChi2());
 309         clusterInfo->SetClusterCharge(cluster->GetCharge());
 310
 311         // fill dummy track info
 312         clusterInfo->SetTrackId(0);
 313         clusterInfo->SetTrackXY(0.,0.);
 314         clusterInfo->SetTrackThetaXY(0.,0.);
 315         clusterInfo->SetTrackP(0.);
 316         clusterInfo->SetTrackXYErr(0.,0.);
 317         clusterInfo->SetTrackChi2(0.);
 318         clusterInfo->SetTrackCharge(0);
 319         clusterInfo->SetTrackNHits(0);
 320         clusterInfo->SetTrackChamberHitMap(0);
 321
 322         // fill pad info if available
 323         for (Int_t i=0; i<cluster->GetNDigits(); i++) {
 324           AliMUONVDigit* digit = digitStore->FindObject(cluster->GetDigitId(i));
 325           if (!digit) continue;
 326
 327           // pad location
 328           const AliMpVSegmentation* seg = AliMpSegmentation::Instance()->
 329           GetMpSegmentation(digit->DetElemId(),AliMp::GetCathodType(digit->Cathode()));
 330           AliMpPad pad = seg->PadByIndices(digit->PadX(), digit->PadY());
 331
 332           // calibration parameters
 333           AliMUONVCalibParam* ped = calibData->Pedestals(digit->DetElemId(), digit->ManuId());
 334           AliMUONVCalibParam* gain = calibData->Gains(digit->DetElemId(), digit->ManuId());
 335           Int_t manuChannel = digit->ManuChannel();
 336           Int_t planeType = 0;
 337           if ( digit->ManuId() & AliMpConstants::ManuMask(AliMp::kNonBendingPlane)) {
 338             planeType = 1;
 339           }
 340
 341           // fill pad info
 342           padInfo.SetPadId(digit->GetUniqueID());
 343           padInfo.SetPadPlaneType(planeType);
 344           padInfo.SetPadXY(pad.GetPositionX(), pad.GetPositionY());
 345           padInfo.SetPadDimXY(pad.GetDimensionX(), pad.GetDimensionY());
 346           padInfo.SetPadCharge((Double_t)digit->Charge());
 347           padInfo.SetPadADC(digit->ADC());
 348           padInfo.SetSaturated(digit->IsSaturated());
 349           padInfo.SetCalibrated(digit->IsCalibrated());
 350           padInfo.SetPedestal(ped->ValueAsFloatFast(manuChannel,0), ped->ValueAsFloatFast(manuChannel,1));
 351           padInfo.SetGain(gain->ValueAsFloatFast(manuChannel,0), gain->ValueAsFloatFast(manuChannel,1),
 352                           gain->ValueAsFloatFast(manuChannel,2), gain->ValueAsFloatFast(manuChannel,3));
 353
 354           clusterInfo->AddPad(padInfo);
 355         }
 356
 357         // fill cluster info tree
 358         clusterInfoTree->Fill();
 359
 360       }
 361
 362       delete digitStore;
 363       delete clusterStore;
 364
 365     }
 366
 367   }
 368
 369   // ...timer stop
 370   timer.Stop();
 371   printf("Writing Tree\n");
 372   // write output tree
 373   clusterInfoFile->cd();
 374   clusterInfoTree->Write();
 375   printf("Deleting Tree\n");
 376   delete clusterInfoTree;
 377   printf("Closing File\n");
 378   clusterInfoFile->Close();
 379
 380   // free memory
 381   printf("Deleting calibData\n");
 382   delete calibData;
 383   printf("Deleting clusterInfo\n");
 384   delete clusterInfo;
 385   if (useRecPoints) {
 386     MUONLoader->UnloadDigits();
 387     MUONLoader->UnloadRecPoints();
 388     rl->UnloadHeader();
 389     delete rl;
 390   }
 391   if (useESD) {
 392     esdFile->Close();
 393     delete esd;
 394   }
 395   cout<<endl<<"time to fill cluster/track info: R:"<<timer.RealTime()<<" C:"<<timer.CpuTime()<<endl<<endl;
 396 }
 397
 398 //-----------------------------------------------------------------------
 399 TTree* GetESDTree(TFile *esdFile)
 400 {
 401   /// Check that the file is properly open
 402   /// Return pointer to the ESD Tree
 403
 404   if (!esdFile || !esdFile->IsOpen()) {
 405     Error("GetESDTree", "opening ESD file failed");
 406     exit(-1);
 407   }
 408
 409   TTree* tree = (TTree*) esdFile->Get("esdTree");
 410   if (!tree) {
 411     Error("GetESDTree", "no ESD tree found");
 412     exit(-1);
 413   }
 414
 415   return tree;
 416
 417 }
 418
 419
 420 //-----------------------------------------------------------------------
 421 UInt_t buildClusterMap(AliMUONTrack &track)
 422 {
 423   /// Build the map of clusters in tracking chambers
 424
 425   UInt_t muonClusterMap = 0;
 426
 427   AliMUONTrackParam* trackParam = static_cast<AliMUONTrackParam*>(track.GetTrackParamAtCluster()->First());
 428   while (trackParam) {
 429
 430     muonClusterMap |= BIT(trackParam->GetClusterPtr()->GetChamberId());
 431
 432     trackParam = static_cast<AliMUONTrackParam*>(track.GetTrackParamAtCluster()->After(trackParam));
 433   }
 434
 435   return muonClusterMap;
 436
 437 }
 438