]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - MUON/AliMUON.cxx
Implementing of new function to check for holes (M.Ivanov)
[u/mrichter/AliRoot.git] / MUON / AliMUON.cxx
index b2abd9ff59f63452c833b8232c0634500057658a..8b3bd03b8eb396bd862214e2db6b89e5c2b624b1 100644 (file)
-////////////////////////////////////////////////
+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ *                                                                        *
+ * Author: The ALICE Off-line Project.                                    *
+ * Contributors are mentioned in the code where appropriate.              *
+ *                                                                        *
+ * Permission to use, copy, modify and distribute this software and its   *
+ * documentation strictly for non-commercial purposes is hereby granted   *
+ * without fee, provided that the above copyright notice appears in all   *
+ * copies and that both the copyright notice and this permission notice   *
+ * appear in the supporting documentation. The authors make no claims     *
+ * about the suitability of this software for any purpose. It is          *
+ * provided "as is" without express or implied warranty.                  *
+ **************************************************************************/
+
+/* $Id$ */
+
+
+///////////////////////////////////////////////
 //  Manager and hits classes for set:MUON     //
 ////////////////////////////////////////////////
 
-#include <TTUBE.h>
+#include "Riostream.h"
+
+#include <AliPDG.h>
+#include <TBRIK.h>
+#include <TCanvas.h>
+#include <TDirectory.h>
+#include <TFile.h>
+#include <TGeometry.h>
+#include <TMinuit.h>
 #include <TNode.h> 
-#include <TRandom.h> 
+#include <TNtuple.h>
+#include <TObjArray.h>
 #include <TObject.h>
+#include <TObjectTable.h>
+#include <TPad.h>
+#include <TParticle.h>
+#include <TROOT.h>
+#include <TRandom.h> 
+#include <TRotMatrix.h>
+#include <TTUBE.h>
+#include <TTUBE.h>
+#include <TTree.h> 
 #include <TVector.h>
-#include <TObjArray.h>
-
+#include <TVirtualMC.h>
+
+#include "AliConst.h" 
+#include "AliHeader.h"
+#include "AliHitMap.h"
+#include "AliLoader.h"
+#include "AliESD.h"
+#include "AliESDMuonTrack.h"
+#include "AliMUONLoader.h"
 #include "AliMUON.h"
-#include "AliRun.h"
-#include "AliMC.h"
-#include "iostream.h"
-#include "AliCallf77.h" 
-
-// Static variables for the pad-hit iterator routines
-static Int_t sMaxIterPad=0;
-static Int_t sCurIterPad=0;
+#include "AliMUONTriggerTrack.h"
+#include "AliMUONEventReconstructor.h"
+#include "AliMUONTrack.h"
+#include "AliMUONTrackParam.h"
+#include "AliMUONChamberTrigger.h"
+#include "AliMUONClusterFinderVS.h"
+#include "AliMUONClusterInput.h"
+#include "AliMUONConstants.h"
+#include "AliMUONDigit.h"
+#include "AliMUONGlobalTrigger.h"
+#include "AliMUONHit.h"
+#include "AliMUONHitMapA1.h"
+#include "AliMUONLocalTrigger.h"
+#include "AliMUONMerger.h"     
+#include "AliMUONPadHit.h"
+#include "AliMUONRawCluster.h"
+#include "AliMUONTransientDigit.h"
+#include "AliMUONTriggerCircuit.h"
+#include "AliMUONTriggerDecision.h"
+#include "AliMUONVGeometryBuilder.h"   
+#include "AliRun.h"    
+#include "AliMUONDigitizerv1.h"
+
+
+// Defaults parameters for Z positions of chambers
+// taken from values for "stations" in AliMUON::AliMUON
+//     const Float_t zch[7]={528, 690., 975., 1249., 1449., 1610, 1710.};
+// and from array "dstation" in AliMUONv1::CreateGeometry
+//          Float_t dstation[5]={20., 20., 20, 20., 20.};
+//     for tracking chambers,
+//          according to (Z1 = zch - dstation) and  (Z2 = zch + dstation)
+//          for the first and second chambers in the station, respectively,
+// and from "DTPLANES" in AliMUONv1::CreateGeometry
+//           const Float_t DTPLANES = 15.;
+//     for trigger chambers,
+//          according to (Z1 = zch) and  (Z2 = zch + DTPLANES)
+//          for the first and second chambers in the station, respectively
+
 ClassImp(AliMUON)
-//___________________________________________
+//__________________________________________________________________
 AliMUON::AliMUON()
 {
-   fIshunt     = 0;
-   fHits       = 0;
-   fClusters   = 0;
-   fNclusters  = 0;
-   fDchambers  = 0;
-   fRecClusters= 0;
-   fNdch       = 0;
-}
-//___________________________________________
+// Default Constructor
+//
+    fNCh             = 0;
+    fNTrackingCh     = 0;
+    fIshunt          = 0;
+    fChambers        = 0;
+    fGeometryBuilders = 0; 
+    fTriggerCircuits = 0;
+    fAccMin          = 0.;
+    fAccMax          = 0.;   
+    fAccCut          = kFALSE;
+    fMerger          = 0;
+    fFileName        = 0;
+    fMUONData        = 0;
+    fSplitLevel      = 0;
+}
+//__________________________________________________________________
 AliMUON::AliMUON(const char *name, const char *title)
-       : AliDetector(name,title)
+  : AliDetector(name,title)
 {
 //Begin_Html
 /*
-<img src="picts/alimuon.gif">
+<img src="gif/alimuon.gif">
 */
 //End_Html
-   fHits     = new TClonesArray("AliMUONhit",1000  );
-   fClusters = new TClonesArray("AliMUONcluster",10000);
-   fNclusters  =  0;
-   fIshunt     =  0;
-
-   fNdch      = new Int_t[11];
+  fMUONData  = 0x0;
+  fSplitLevel= 0;
+  fIshunt     =  0;
 
-   fDchambers = new TObjArray(11);
+  fNCh             = AliMUONConstants::NCh(); 
+  fNTrackingCh     = AliMUONConstants::NTrackingCh();
 
-   Int_t i;
-   
-   for (i=0; i<11 ;i++) {
-       (*fDchambers)[i] = new TClonesArray("AliMUONdigit",10000); 
-       fNdch[i]=0;
-   }
-
-   fRecClusters=new TObjArray(20);
-   for (i=0; i<20;i++)
-     (*fRecClusters)[i] = new TObjArray(1000);
-
-//   
-// Transport angular cut
-   fAccCut=0;
-   fAccMin=2;
-   fAccMax=9;
-
-   SetMarkerColor(kRed);
+  SetMarkerColor(kRed);//
+//
+// Creating List of Chambers
+    Int_t ch;
+    fChambers = new TObjArray(AliMUONConstants::NCh());
+    fGeometryBuilders = new TObjArray(AliMUONConstants::NCh());
+
+    // Loop over stations
+    for (Int_t st = 0; st < AliMUONConstants::NCh() / 2; st++) {
+      // Loop over 2 chambers in the station
+      for (Int_t stCH = 0; stCH < 2; stCH++) {
+       //
+       //    
+       //    Default Parameters for Muon Tracking Stations
+       ch = 2 * st + stCH;
+       if (ch < AliMUONConstants::NTrackingCh()) {
+         fChambers->AddAt(new AliMUONChamber(ch),ch);
+       } else {
+         fChambers->AddAt(new AliMUONChamberTrigger(ch),ch);
+       }
+       AliMUONChamber* chamber = (AliMUONChamber*) fChambers->At(ch);
+       //chamber->SetGid(0);
+       // Default values for Z of chambers
+       chamber->SetZ(AliMUONConstants::DefaultChamberZ(ch));
+       //
+       chamber->InitGeo(AliMUONConstants::DefaultChamberZ(ch));
+       //          Set chamber inner and outer radius to default
+       chamber->SetRInner(AliMUONConstants::Dmin(st)/2);
+       chamber->SetROuter(AliMUONConstants::Dmax(st)/2);
+       //
+      } // Chamber stCH (0, 1) in 
+    }     // Station st (0...)
+    
+    // Negatives values are ignored by geant3 CONS200 in the calculation of the tracking parameters
+    fMaxStepGas=0.1; 
+    fMaxStepAlu=0.1;  
+    fMaxDestepGas=-1;
+    fMaxDestepAlu=-1;
+    
+    fMaxIterPad   = 0;
+    fCurIterPad   = 0;
+    
+    fAccMin          = 0.;
+    fAccMax          = 0.;   
+    fAccCut          = kFALSE;
+    
+    // cp new design of AliMUONTriggerDecision
+    fTriggerCircuits = new TObjArray(AliMUONConstants::NTriggerCircuit());
+    for (Int_t circ=0; circ<AliMUONConstants::NTriggerCircuit(); circ++) {
+      fTriggerCircuits->AddAt(new AliMUONTriggerCircuit(),circ);          
+    }
+    fMerger = 0;
 }
-//___________________________________________
+//____________________________________________________________________
+AliMUON::AliMUON(const AliMUON& rMUON):AliDetector(rMUON)
+{
+// Dummy copy constructor
+    ;
+    
+}
+//____________________________________________________________________
 AliMUON::~AliMUON()
 {
+// Destructor
+  if(fDebug) printf("%s: Calling AliMUON destructor !!!\n",ClassName());
   fIshunt  = 0;
-  delete fHits;
-  delete fClusters;
-//  for (Int_t i=0;i<10;i++) {
-//      delete (*fDchambers)[i];
-//      fNdch[i]=0;
-//  }
-//  delete fDchambers;
-  for (Int_t i=0;i<20;i++) 
-      delete (*fRecClusters)[i];
-  delete fRecClusters;
+  if (fMerger) delete fMerger;
 
-}
-//___________________________________________
-void AliMUON::AddHit(Int_t track, Int_t *vol, Float_t *hits)
-{
-  TClonesArray &lhits = *fHits;
-  new(lhits[fNhits++]) AliMUONhit(fIshunt,track,vol,hits);
-}
-//___________________________________________
-void AliMUON::AddCluster(Int_t *clhits)
-{
-   TClonesArray &lclusters = *fClusters;
-   new(lclusters[fNclusters++]) AliMUONcluster(clhits);
+  if (fGeometryBuilders){
+    fGeometryBuilders->Delete();
+    delete fGeometryBuilders;
+  } 
 }
 //_____________________________________________________________________________
-void AliMUON::AddDigits(Int_t id, Int_t *tracks, Int_t *charges, Int_t *digits)
+void AliMUON::AddGeometryBuilder(AliMUONVGeometryBuilder* geomBuilder)
 {
-    //
-    // Add a MUON digit to the list
-    //
-
-    TClonesArray &ldigits = *((TClonesArray*)(*fDchambers)[id]);
-    new(ldigits[fNdch[id]++]) AliMUONdigit(tracks,charges,digits);
-}
-
+// Adds the geometry builder to the list
+// ---
 
-//_____________________________________________________________________________
-void AliMUON::AddRecCluster(Int_t iCh, Int_t iCat, AliMUONRecCluster* Cluster)
-{
-    //
-    // Add a MUON reconstructed cluster to the list
-    //
-    TObjArray* ClusterList = RecClusters(iCh,iCat);
-    ClusterList->Add(Cluster);
+  fGeometryBuilders->Add(geomBuilder);
 }
-
-//___________________________________________
+//____________________________________________________________________
 void AliMUON::BuildGeometry()
 {
-  TNode *Node, *Top;
-  const int kColorMUON = kBlue;
-  //
-  Top=gAlice->GetGeometry()->GetNode("alice");
-
-  // MUON
-  const float cz[10] = { 511, 519, 686, 694, 971, 979, 1245, 1253, 1445, 1453};
-  const float acc_min = TMath::Tan( 2*.0174532925199432958);
-  const float acc_max = TMath::Tan(9*.0174532925199432958);
-  float rmin, rmax;
-  
-  // Chamber 1
-  rmin = (cz[0]+0.25)*acc_min;
-  rmax = cz[0]*acc_max;
-  new TTUBE("S_MUON1","MUON chamber 1","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON1","MUON chamber 1","S_MUON1",0,0,cz[0],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-  
-  // Chamber 2
-  rmin = (cz[1]+0.25)*acc_min;
-  rmax = cz[1]*acc_max;
-  new TTUBE("S_MUON2","MUON chamber 2","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON2","MUON chamber 2","S_MUON2",0,0,cz[1],"");
-  fNodes->Add(Node);
-  Node->SetLineColor(kColorMUON);
-  
-  // Chamber 3
-  rmin = (cz[2]+0.25)*acc_min;
-  rmax =  cz[2]*acc_max;
-  new TTUBE("S_MUON3","MUON chamber 3","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON3","MUON chamber 3","S_MUON3",0,0,cz[2],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-  
-  // Chamber 4
-  rmin = (cz[3]+0.25)*acc_min;
-  rmax = cz[3]*acc_max;
-  new TTUBE("S_MUON4","MUON chamber 4","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON4","MUON chamber 4","S_MUON4",0,0,cz[3],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-
-  // Chamber 5
-  rmin = 30;
-  rmax = cz[4]*acc_max;
-  new TTUBE("S_MUON5","MUON chamber 5","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON5","MUON chamber 5","S_MUON5",0,0,cz[4],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-  
-  // Chamber 6
-  rmin = 30;
-  rmax = cz[5]*acc_max;
-  new TTUBE("S_MUON6","MUON chamber 6","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON6","MUON chamber 6","S_MUON6",0,0,cz[5],"");
-  fNodes->Add(Node);
-  Node->SetLineColor(kColorMUON);
-  
-  // Chamber 7
-  rmin = 30;
-  rmax = cz[6]*acc_max;
-  new TTUBE("S_MUON7","MUON chamber 7","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON7","MUON chamber 7","S_MUON7",0,0,cz[6],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-
-  // Chamber 8
-  rmin = 30;
-  rmax = cz[7]*acc_max;
-  new TTUBE("S_MUON8","MUON chamber 8","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON8","MUON chamber 8","S_MUON8",0,0,cz[7],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-
-  // Chamber 9
-  rmin = 30;
-  rmax = cz[8]*acc_max;
-  new TTUBE("S_MUON9","MUON chamber 9","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON9","MUON chamber 9","S_MUON9",0,0,cz[8],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-
-  // Chamber 10
-  rmin = 30;
-  rmax = cz[9]*acc_max;
-  new TTUBE("S_MUON10","MUON chamber 10","void",rmin,rmax,0.25);
-  Top->cd();
-  Node = new TNode("MUON10","MUON chamber 10","S_MUON10",0,0,cz[9],"");
-  Node->SetLineColor(kColorMUON);
-  fNodes->Add(Node);
-
+// Geometry for event display
+  for (Int_t i=0; i<7; i++) {
+    for (Int_t j=0; j<2; j++) {
+      Int_t id=2*i+j+1;
+      this->Chamber(id-1).SegmentationModel(1)->Draw("eventdisplay");
+    }
+  }
 }
-
-//___________________________________________
+//___________________________________________________________________
 Int_t AliMUON::DistancetoPrimitive(Int_t , Int_t )
 {
-   return 9999;
+  return 9999;
 }
-
-//___________________________________________
-void AliMUON::MakeBranch(Option_t* option)
+//__________________________________________________________________
+void  AliMUON::SetTreeAddress()
 {
-  // Create Tree branches for the MUON.
-  
-  const Int_t buffersize = 4000;
-  char branchname[20];
-  sprintf(branchname,"%sCluster",GetName());
-
-  AliDetector::MakeBranch(option);
-
-  if (fClusters   && gAlice->TreeH()) {
-    gAlice->TreeH()->Branch(branchname,&fClusters, buffersize);
-    printf("Making Branch %s for clusters\n",branchname);
-  }
-
-// one branch for digits per chamber
-  Int_t i;
-  
-  for (i=0; i<10 ;i++) {
-      sprintf(branchname,"%sDigits%d",GetName(),i+1);
-      
-      if (fDchambers   && gAlice->TreeD()) {
-         gAlice->TreeD()->Branch(branchname,&((*fDchambers)[i]), buffersize);
-         printf("Making Branch %s for digits in chamber %d\n",branchname,i+1);
-      }        
-  }
-// one branch for rec clusters
-  for (i=0; i<20; i++) {
-      sprintf(branchname,"%sRecClus%d",GetName(),i+1);
-      if (fRecClusters   && gAlice->TreeD()) {
-         gAlice->TreeR()
-             ->Branch(branchname,"TObjArray", 
-                      &((*fRecClusters)[i]), buffersize,0);
-         printf("Making Branch %s for clusters in chamber %d\n",
-                branchname,i+1);
-      }
-  }
+  GetMUONData()->SetLoader(fLoader); 
+  GetMUONData()->SetTreeAddress("H,D,RC");
+  fHits = GetMUONData()->Hits(); // Added by Ivana to use the methods FisrtHit, NextHit of AliDetector
 }
 
-//___________________________________________
-void AliMUON::SetTreeAddress()
+//____________________________________________________________________
+void AliMUON::SetPadSize(Int_t id, Int_t isec, Float_t p1, Float_t p2)
 {
-  // Set branch address for the Hits and Digits Tree.
-  char branchname[20];
-  AliDetector::SetTreeAddress();
-
-  TBranch *branch;
-  TTree *treeH = gAlice->TreeH();
-  TTree *treeD = gAlice->TreeD();
-
-  if (treeH) {
-    if (fClusters) {
-      branch = treeH->GetBranch("MUONCluster");
-      if (branch) branch->SetAddress(&fClusters);
-    }
-  }
-
-  if (treeD) {
-      for (int i=0; i<10; i++) {
-         sprintf(branchname,"%sDigits%d",GetName(),i+1);
-         if (fDchambers) {
-             branch = treeD->GetBranch(branchname);
-             if (branch) branch->SetAddress(&((*fDchambers)[i]));
-         }
-      }
-  }
+// Set the pad size for chamber id and cathode isec
+    Int_t i=2*(id-1);
+    ((AliMUONChamber*) fChambers->At(i))  ->SetPadSize(isec,p1,p2);
+    ((AliMUONChamber*) fChambers->At(i+1))->SetPadSize(isec,p1,p2);
 }
+
 //___________________________________________
-void AliMUON::ResetHits()
+void AliMUON::SetChambersZ(const Float_t *Z)
 {
-  // Reset number of clusters and the cluster array for this detector
-  AliDetector::ResetHits();
-  fNclusters = 0;
-  if (fClusters) fClusters->Clear();
+  // Set Z values for all chambers (tracking and trigger)
+  // from the array pointed to by "Z"
+    for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++)
+       ((AliMUONChamber*) fChambers->At(ch))->SetZ(Z[ch]);
+    return;
 }
-
-//____________________________________________
-void AliMUON::ResetDigits()
+//_________________________________________________________________
+void AliMUON::SetChambersZToDefault()
 {
-    //
-    // Reset number of digits and the digits array for this detector
-    //
-    for ( int i=0;i<10;i++ ) {
-       if ((*fDchambers)[i])   (*fDchambers)[i]->Clear();
-       if (fNdch)  fNdch[i]=0;
-    }
+  // Set Z values for all chambers (tracking and trigger)
+  // to default values
+  SetChambersZ(AliMUONConstants::DefaultChamberZ());
+  return;
 }
-//____________________________________________
-void AliMUON::ResetRecClusters()
+//_________________________________________________________________
+void AliMUON::SetChargeSlope(Int_t id, Float_t p1)
 {
-    //
-    // Reset the rec clusters
-    //
-    for ( int i=0;i<20;i++ ) {
-       if ((*fRecClusters)[i])   (*fRecClusters)[i]->Clear();
-    }
+// Set the inverse charge slope for chamber id
+    Int_t i=2*(id-1);    //PH    ((AliMUONChamber*) (*fChambers)[i])->SetSigmaIntegration(p1);
+    //PH    ((AliMUONChamber*) (*fChambers)[i+1])->SetSigmaIntegration(p1);
+    ((AliMUONChamber*) fChambers->At(i))->SetChargeSlope(p1);
+    ((AliMUONChamber*) fChambers->At(i+1))->SetChargeSlope(p1);
 }
-//___________________________________________
-
-void AliMUON::SetPADSIZ(Int_t id, Int_t isec, Float_t p1, Float_t p2)
+//__________________________________________________________________
+void AliMUON::SetChargeSpread(Int_t id, Float_t p1, Float_t p2)
 {
+// Set sigma of charge spread for chamber id
     Int_t i=2*(id-1);
-    ((AliMUONchamber*) (*fChambers)[i])  ->SetPADSIZ(isec,p1,p2);
-    ((AliMUONchamber*) (*fChambers)[i+1])->SetPADSIZ(isec,p1,p2);
+    ((AliMUONChamber*) fChambers->At(i))->SetChargeSpread(p1,p2);
+    ((AliMUONChamber*) fChambers->At(i+1))->SetChargeSpread(p1,p2);
 }
-
-//___________________________________________
-void AliMUON::SetMUCHSP(Int_t id, Float_t p1)
+//___________________________________________________________________
+void AliMUON::SetSigmaIntegration(Int_t id, Float_t p1)
 {
+// Set integration limits for charge spread
     Int_t i=2*(id-1);
-    ((AliMUONchamber*) (*fChambers)[i])->SetMUCHSP(p1);
-    ((AliMUONchamber*) (*fChambers)[i+1])->SetMUCHSP(p1);
+    ((AliMUONChamber*) fChambers->At(i))->SetSigmaIntegration(p1);
+    ((AliMUONChamber*) fChambers->At(i+1))->SetSigmaIntegration(p1);
 }
 
-//___________________________________________
-void AliMUON::SetMUSIGM(Int_t id, Float_t p1, Float_t p2)
+//__________________________________________________________________
+void AliMUON::SetMaxAdc(Int_t id, Int_t p1)
 {
+// Set maximum number for ADCcounts (saturation)
     Int_t i=2*(id-1);
-    ((AliMUONchamber*) (*fChambers)[i])->SetMUSIGM(p1,p2);
-    ((AliMUONchamber*) (*fChambers)[i+1])->SetMUSIGM(p1,p2);
+    ((AliMUONChamber*) fChambers->At(i))->SetMaxAdc(p1);
+    ((AliMUONChamber*) fChambers->At(i+1))->SetMaxAdc(p1);
 }
-
-//___________________________________________
-void AliMUON::SetRSIGM(Int_t id, Float_t p1)
+//__________________________________________________________________
+void AliMUON::SetMaxStepGas(Float_t p1)
 {
-    Int_t i=2*(id-1);
-    ((AliMUONchamber*) (*fChambers)[i])->SetRSIGM(p1);
-    ((AliMUONchamber*) (*fChambers)[i+1])->SetRSIGM(p1);
+// Set stepsize in gas
+  fMaxStepGas=p1;
 }
-
-//___________________________________________
-void AliMUON::SetMAXADC(Int_t id, Float_t p1)
+//__________________________________________________________________
+void AliMUON::SetMaxStepAlu(Float_t p1)
 {
-    Int_t i=2*(id-1);
-    ((AliMUONchamber*) (*fChambers)[i])->SetMAXADC(p1);
-    ((AliMUONchamber*) (*fChambers)[i+1])->SetMAXADC(p1);
+// Set step size in Alu
+    fMaxStepAlu=p1;
 }
-
-//___________________________________________
-void AliMUON::SetSMAXAR(Float_t p1)
+//__________________________________________________________________
+void AliMUON::SetMaxDestepGas(Float_t p1)
 {
-     fMaxStepGas=p1;
+// Set maximum step size in Gas
+    fMaxDestepGas=p1;
+}
+//__________________________________________________________________
+void AliMUON::SetMaxDestepAlu(Float_t p1)
+{
+// Set maximum step size in Alu
+  fMaxDestepAlu=p1;
+}
+//___________________________________________________________________
+void AliMUON::SetAcceptance(Bool_t acc, Float_t angmin, Float_t angmax)
+{
+// Set acceptance cuts 
+  fAccCut=acc;
+  fAccMin=angmin*TMath::Pi()/180;
+  fAccMax=angmax*TMath::Pi()/180;
+  Int_t ch;
+  if (acc) {
+    for (Int_t st = 0; st < AliMUONConstants::NCh() / 2; st++) {
+      // Loop over 2 chambers in the station
+      for (Int_t stCH = 0; stCH < 2; stCH++) {
+       ch = 2 * st + stCH;
+       //         Set chamber inner and outer radius according to acceptance cuts
+       Chamber(ch).SetRInner(TMath::Abs(AliMUONConstants::DefaultChamberZ(ch)*TMath::Tan(fAccMin)));
+       Chamber(ch).SetROuter(TMath::Abs(AliMUONConstants::DefaultChamberZ(ch)*TMath::Tan(fAccMax)));
+      } // chamber loop
+    } // station loop
+  }
 }
 
-//___________________________________________
-void AliMUON::SetSMAXAL(Float_t p1)
+//____________________________________________________________________
+Float_t  AliMUON::GetMaxStepGas() const
 {
-    fMaxStepAlu=p1;
-}
+// Return stepsize in gas
+  
+  return fMaxStepGas;
+}  
 
-//___________________________________________
-void AliMUON::SetDMAXAR(Float_t p1)
+//____________________________________________________________________
+Float_t  AliMUON::GetMaxStepAlu() const
 {
-    fMaxDestepGas=p1;
+// Return step size in Alu
+  
+  return fMaxStepAlu;
 }
-
-//___________________________________________
-void AliMUON::SetDMAXAL(Float_t p1)
+  
+//____________________________________________________________________
+Float_t  AliMUON::GetMaxDestepGas() const
 {
-    fMaxDestepAlu=p1;
+// Return maximum step size in Gas
+  
+  return fMaxDestepGas;
 }
-//___________________________________________
-void AliMUON::SetMUONACC(Bool_t acc, Float_t angmin, Float_t angmax)
+  
+//____________________________________________________________________
+Float_t  AliMUON::GetMaxDestepAlu() const
 {
-   fAccCut=acc;
-   fAccMin=angmin;
-   fAccMax=angmax;
+// Return maximum step size in Gas
+  
+  return fMaxDestepAlu;
 }
-//___________________________________________
-void   AliMUON::SetSegmentationModel(Int_t id, Int_t isec, AliMUONsegmentation *segmentation)
+
+//____________________________________________________________________
+void   AliMUON::SetSegmentationModel(Int_t id, Int_t isec, AliSegmentation *segmentation)
 {
-    ((AliMUONchamber*) (*fChambers)[id])->SegmentationModel(isec, segmentation);
+// Set the segmentation for chamber id cathode isec
+    ((AliMUONChamber*) fChambers->At(id))->SetSegmentationModel(isec, segmentation);
 
 }
-//___________________________________________
-void   AliMUON::SetResponseModel(Int_t id, AliMUONresponse *response)
+//____________________________________________________________________
+void   AliMUON::SetResponseModel(Int_t id, AliMUONResponse *response)
 {
-    ((AliMUONchamber*) (*fChambers)[id])->ResponseModel(response);
+// Set the response for chamber id
+    ((AliMUONChamber*) fChambers->At(id))->SetResponseModel(response);
 }
-
+//____________________________________________________________________
+void   AliMUON::SetReconstructionModel(Int_t id, AliMUONClusterFinderVS *reconst)
+{
+// Set ClusterFinder for chamber id
+    ((AliMUONChamber*) fChambers->At(id))->SetReconstructionModel(reconst);
+}
+//____________________________________________________________________
 void   AliMUON::SetNsec(Int_t id, Int_t nsec)
 {
-    ((AliMUONchamber*) (*fChambers)[id])->SetNsec(nsec);
+// Set number of segmented cathods for chamber id
+    ((AliMUONChamber*) fChambers->At(id))->SetNsec(nsec);
 }
+//____________________________________________________________________
+AliDigitizer* AliMUON::CreateDigitizer(AliRunDigitizer* manager) const
+{
+  return new AliMUONDigitizerv1(manager);
+}
+//_____________________________________________________________________
+void AliMUON::SDigits2Digits()
+{
 
+// write TreeD here 
 
-//___________________________________________
-
-void AliMUON::StepManager()
-{
-    printf("Dummy version of muon step -- it should never happen!!\n");
-    const Float_t kRaddeg = 180/TMath::Pi();
-    AliMC* pMC = AliMC::GetMC();
-    Int_t nsec, ipart;
-    Float_t x[4], p[4];
-    Float_t pt, th0, th1;
-    char proc[5];
-    if(fAccCut) {
-       if((nsec=pMC->NSecondaries())>0) {
-           pMC->ProdProcess(proc);
-           if((pMC->TrackPid()==113 || pMC->TrackPid()==114) && !strcmp(proc,"DCAY")) {
-               //
-               // Check angular acceptance
-               //* --- and have muons from resonance decays in the wanted window --- 
-               if(nsec != 2) {
-                   printf(" AliMUON::StepManager: Strange resonance Decay into %d particles\n",nsec);
-                   pMC->StopEvent();
-               } else {
-                   pMC->GetSecondary(0,ipart,x,p);
-                   pt  = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
-                   th0 = TMath::ATan2(pt,p[2])*kRaddeg;
-                   pMC->GetSecondary(1,ipart,x,p);
-                   pt  = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]);
-                   th1 = TMath::ATan2(pt,p[2])*kRaddeg;
-                   if(!(fAccMin < th0 && th0 < fAccMax) ||
-                      !(fAccMin < th1 && th1 < fAccMax)) 
-                       pMC->StopEvent();
-               }
-           }
-       }
+    if (!fMerger) {
+      if (gAlice->GetDebug()>0) {
+       cerr<<"AliMUON::SDigits2Digits: create default AliMUONMerger "<<endl;
+       cerr<<" no merging, just digitization of 1 event will be done"<<endl;
+      }
+      fMerger = new AliMUONMerger();
+    }
+    fMerger->Init();
+    fMerger->Digitise();
+    char hname[30];
+    //    sprintf(hname,"TreeD%d",fLoader->GetHeader()->GetEvent());
+    fLoader->TreeD()->Write(hname,TObject::kOverwrite);
+    fLoader->TreeD()->Reset();
+}
+
+//_______________________________________________________________________
+AliLoader* AliMUON::MakeLoader(const char* topfoldername)
+{ 
+//builds standard getter (AliLoader type)
+//if detector wants to use castomized getter, it must overload this method
+
+ if (GetDebug())
+   Info("MakeLoader",
+        "Creating standard getter for detector %s. Top folder is %s.",
+         GetName(),topfoldername);
+     
+ fLoader   = new AliLoader(GetName(),topfoldername);
+ fMUONData = new AliMUONData(fLoader,GetName(),GetName()); 
+ fMUONData->SetSplitLevel(fSplitLevel);
+ return fLoader;
+}
+
+//_______________________________________________________________________
+void AliMUON::Trigger(Int_t nev){
+// call the Trigger Algorithm and fill TreeR
+
+  Int_t singlePlus[3]  = {0,0,0}; 
+  Int_t singleMinus[3] = {0,0,0}; 
+  Int_t singleUndef[3] = {0,0,0};
+  Int_t pairUnlike[3]  = {0,0,0}; 
+  Int_t pairLike[3]    = {0,0,0};
+  
+  ResetTrigger();
+  AliMUONTriggerDecision* decision= new AliMUONTriggerDecision(1);
+  decision->Trigger();   
+  decision->GetGlobalTrigger(singlePlus, singleMinus, singleUndef,
+                            pairUnlike, pairLike);
+  
+  // add a local trigger in the list 
+  GetMUONData()->AddGlobalTrigger(singlePlus, singleMinus, singleUndef, pairUnlike, pairLike);
+  Int_t i;
+  
+  for (Int_t icirc=0; icirc<AliMUONConstants::NTriggerCircuit(); icirc++) { 
+    if(decision->GetITrigger(icirc)==1) {
+      Int_t localtr[7]={0,0,0,0,0,0,0};      
+      Int_t loLpt[2]={0,0}; Int_t loHpt[2]={0,0}; Int_t loApt[2]={0,0};
+      decision->GetLutOutput(icirc, loLpt, loHpt, loApt);
+      localtr[0] = icirc;
+      localtr[1] = decision->GetStripX11(icirc);
+      localtr[2] = decision->GetDev(icirc);
+      localtr[3] = decision->GetStripY11(icirc);
+      for (i=0; i<2; i++) {    // convert the Lut output in 1 digit 
+       localtr[4] = localtr[4]+Int_t(loLpt[i]*TMath::Power(2,i));
+       localtr[5] = localtr[5]+Int_t(loHpt[i]*TMath::Power(2,i));
+       localtr[6] = localtr[6]+Int_t(loApt[i]*TMath::Power(2,i));
+      }
+      GetMUONData()->AddLocalTrigger(localtr);  // add a local trigger in the list
     }
+  }
+  
+  delete decision;
+
+  //  fLoader->TreeR()->Fill();
+  GetMUONData()->Fill("GLT"); //Filling Global and Local Trigger GLT
+  //  char hname[30];
+  //  sprintf(hname,"TreeR%d",nev);
+  //  fLoader->TreeR()->Write(hname,TObject::kOverwrite);
+    //  fLoader->TreeR()->Reset();
+  fLoader->WriteRecPoints("OVERWRITE");
+  
+  printf("\n End of trigger for event %d", nev);
 }
-void AliMUON::ReconstructClusters()
+
+//____________________________________________________________________
+void AliMUON::Digits2Reco()
+{
+  FindClusters();
+  Int_t nev = gAlice->GetHeader()->GetEvent();
+  GetMUONData()->Fill("RC"); //Filling Reconstructed Cluster
+  fLoader->WriteRecPoints("OVERWRITE");
+  GetMUONData()->ResetRawClusters();        
+  Info("Digits2Reco","End of cluster finding for event %d", nev);
+}
+//____________________________________________________________________
+void AliMUON::FindClusters()
 {
 //
-// Initialize the necessary correspondance table
-//
-    static const Int_t kMaxNpadx = 600;
-    static const Int_t kMaxNpady = 600;
-    Int_t elem[kMaxNpadx*2][kMaxNpady*2];
+//  Perform cluster finding
 //
+    TClonesArray *dig1, *dig2;
+    Int_t ndig, k;
+    dig1 = new TClonesArray("AliMUONDigit",1000);
+    dig2 = new TClonesArray("AliMUONDigit",1000);
+    AliMUONDigit *digit;
 // Loop on chambers and on cathode planes
 //
-    for (Int_t ich=0;ich<10;ich++)
-       for (Int_t icat=0;icat<2;icat++) {
-           //
-           // Get ready the current chamber stuff
-           //
-           AliMUONchamber*  iChamber= &(this->Chamber(ich));
-           AliMUONsegmentation*  segmentation = 
-               iChamber->GetSegmentationModel(icat+1);
-           if (!segmentation) 
-               continue;
-           TClonesArray *MUONdigits  = this->DigitsAddress(ich);
-           if (MUONdigits == 0) 
-               continue;
-           cout << "Npx " << segmentation->Npx() 
-                << " Npy " << segmentation->Npy() << endl;
-           //      
-           // Ready the digits
-           //  
-           gAlice->ResetDigits();
-           gAlice->TreeD()->GetEvent(icat+1); // spurious +1 ...
-           Int_t ndigits = MUONdigits->GetEntriesFast();
-           if (ndigits == 0) 
-               continue;
-           printf("Found %d digits for cathode %d in chamber %d \n",
-                  ndigits,icat,ich+1);
-           AliMUONdigit  *mdig;
-           AliMUONRecCluster *Cluster;
-           //
-           // Build the correspondance table
-           //
-           memset(elem,0,sizeof(Int_t)*kMaxNpadx*kMaxNpady*4);
-           Int_t digit;
-           for (digit=0; digit<ndigits; digit++) 
-           {
-               mdig    = (AliMUONdigit*)MUONdigits->UncheckedAt(digit);
-               elem[kMaxNpadx+mdig->fPadX][kMaxNpady+mdig->fPadY] = digit+1;
-               // because default is 0
-           }
-           //
-           // Declare some useful variables
-           //
-           Int_t Xlist[10];
-           Int_t Ylist[10];
-           Int_t Nlist;
-           Int_t nclust=0;
-           //
-           // loop over digits
-           //
-           for (digit=0;digit<ndigits;digit++) {
-               mdig    = (AliMUONdigit*)MUONdigits->UncheckedAt(digit);
-               //
-               // if digit still available, start clustering
-               //
-               if (elem[kMaxNpadx+mdig->fPadX][kMaxNpady+mdig->fPadY]) {
-                   Cluster = new AliMUONRecCluster(digit, ich, icat);
-                   elem[kMaxNpadx+mdig->fPadX][kMaxNpady+mdig->fPadY]=0;
-                   //
-                   // loop over the current list of digits 
-                    // and look for neighbours
-                   //
-                   for(Int_t clusDigit=Cluster->FirstDigitIndex();
-                       clusDigit!=Cluster->InvalidDigitIndex();
-                       clusDigit=Cluster->NextDigitIndex()) {
-                       AliMUONdigit* pDigit=(AliMUONdigit*)MUONdigits
-                           ->UncheckedAt(clusDigit);
-                       segmentation->Neighbours(pDigit->fPadX,pDigit->fPadY, 
-                                                &Nlist, Xlist, Ylist);
-                       for (Int_t Ilist=0;Ilist<Nlist;Ilist++) {
-                           if (elem[kMaxNpadx+Xlist[Ilist]][kMaxNpady
-                                                           +Ylist[Ilist]]) {
-                               //
-                               // Add the digit at the end and reset the table
-                               //
-                               Cluster->AddDigit(elem[kMaxNpadx+Xlist[Ilist]][kMaxNpady+Ylist[Ilist]]-1);
-                               elem[kMaxNpadx+Xlist[Ilist]][kMaxNpady
-                                                           +Ylist[Ilist]] =0;
-                           } // if elem
-                       } // for Ilist
-                   } // for pDigit
-                   //
-                   // Store the cluster (good time to do Cluster polishing)
-                   //
-                   segmentation->FitXY(Cluster,MUONdigits);
-                   nclust ++;
-                   AddRecCluster(ich,icat,Cluster);
-               }
-           }
-           printf("===> %d Clusters\n",nclust); 
-       } // for icat
-}
+    ResetRawClusters();        
+    TClonesArray * muonDigits;
+
+    for (Int_t ich = 0; ich < 10; ich++) {
+      //PH     AliMUONChamber* iChamber = (AliMUONChamber*) (*fChambers)[ich];
+       AliMUONChamber* iChamber = (AliMUONChamber*) fChambers->At(ich);
+       AliMUONClusterFinderVS* rec = iChamber->ReconstructionModel();
+    
+       ResetDigits();
+       GetMUONData()->GetCathode(0);
+       //TClonesArray *
+       muonDigits = GetMUONData()->Digits(ich); 
+       ndig=muonDigits->GetEntriesFast();
+       printf("\n 1 Found %d digits in %p chamber %d", ndig, muonDigits,ich);
+       TClonesArray &lhits1 = *dig1;
+       Int_t n = 0;
+       for (k = 0; k < ndig; k++) {
+           digit = (AliMUONDigit*) muonDigits->UncheckedAt(k);
+           if (rec->TestTrack(digit->Track(0)))
+               new(lhits1[n++]) AliMUONDigit(*digit);
+       }
+       GetMUONData()->ResetDigits();
+       GetMUONData()->GetCathode(1);
+       muonDigits =  GetMUONData()->Digits(ich);  
+       ndig=muonDigits->GetEntriesFast();
+       printf("\n 2 Found %d digits in %p %d", ndig, muonDigits, ich);
+       TClonesArray &lhits2 = *dig2;
+       n=0;
+       
+       for (k=0; k<ndig; k++) {
+           digit= (AliMUONDigit*) muonDigits->UncheckedAt(k);
+           if (rec->TestTrack(digit->Track(0)))
+           new(lhits2[n++]) AliMUONDigit(*digit);
+       }
 
-//______________________________________________________________________________
-void AliMUON::Streamer(TBuffer &R__b)
+       if (rec) {       
+           AliMUONClusterInput::Instance()->SetDigits(ich, dig1, dig2);
+           rec->FindRawClusters();
+       }
+       dig1->Delete();
+       dig2->Delete();
+    } // for ich
+    delete dig1;
+    delete dig2;
+}
+//______________________________________________________________________
+#ifdef never
+void AliMUON::Streamer(TBuffer &R__b)_
 {
    // Stream an object of class AliMUON.
-      AliMUONchamber       *iChamber;
-      AliMUONsegmentation  *segmentation;
-      AliMUONresponse      *response;
-      TClonesArray         *digitsaddress;
-      
-   if (R__b.IsReading()) {
-      Version_t R__v = R__b.ReadVersion(); if (R__v) { }
-      AliDetector::Streamer(R__b);
-      R__b >> fNclusters;
-      R__b >> fClusters; // diff
-      R__b >> fDchambers;
-      R__b.ReadArray(fNdch);
-      //
-      R__b >> fAccCut;
-      R__b >> fAccMin;
-      R__b >> fAccMax; 
-      //   
-      R__b >> fChambers;
+      AliMUONChamber        *iChamber;
+      AliMUONTriggerCircuit *iTriggerCircuit;
+      AliSegmentation       *segmentation;
+      AliMUONResponse       *response;
+      TClonesArray          *digitsaddress;
+      TClonesArray          *rawcladdress;
+      Int_t i;
+      if (R__b.IsReading()) {
+         Version_t R__v = R__b.ReadVersion(); if (R__v) { }
+         AliDetector::Streamer(R__b);
+         R__b >> fNPadHits;
+         R__b >> fPadHits; // diff
+         R__b >> fNLocalTrigger;       
+         R__b >> fLocalTrigger;       
+         R__b >> fNGlobalTrigger;       
+         R__b >> fGlobalTrigger;   
+         R__b >> fDchambers;
+         R__b >> fRawClusters;
+         R__b.ReadArray(fNdch);
+         R__b.ReadArray(fNrawch);
+         R__b >> fAccCut;
+         R__b >> fAccMin;
+         R__b >> fAccMax; 
+         R__b >> fChambers;
+         R__b >> fTriggerCircuits;
+         for (i =0; i<AliMUONConstants::NTriggerCircuit(); i++) {
+             iTriggerCircuit=(AliMUONTriggerCircuit*) (*fTriggerCircuits)[i];
+             iTriggerCircuit->Streamer(R__b);
+         }
 // Stream chamber related information
-      for (Int_t i =0; i<10; i++) {
-         iChamber=(AliMUONchamber*) (*fChambers)[i];
-         iChamber->Streamer(R__b);
-         if (iChamber->Nsec()==1) {
-             segmentation=iChamber->GetSegmentationModel(1);
-             segmentation->Streamer(R__b);
-         } else {
-             segmentation=iChamber->GetSegmentationModel(1);
-             segmentation->Streamer(R__b);
-             segmentation=iChamber->GetSegmentationModel(2);
-             segmentation->Streamer(R__b);
+         for (i =0; i<AliMUONConstants::NCh(); i++) {
+             iChamber=(AliMUONChamber*) (*fChambers)[i];
+             iChamber->Streamer(R__b);
+             if (iChamber->Nsec()==1) {
+                 segmentation=iChamber->SegmentationModel(1);
+                 if (segmentation)
+                     segmentation->Streamer(R__b);
+             } else {
+                 segmentation=iChamber->SegmentationModel(1);
+                 if (segmentation)
+                     segmentation->Streamer(R__b);
+                 if (segmentation)
+                     segmentation=iChamber->SegmentationModel(2);
+                 segmentation->Streamer(R__b);
+             }
+             response=iChamber->ResponseModel();
+             if (response)
+                 response->Streamer(R__b);       
+             digitsaddress=(TClonesArray*) (*fDchambers)[i];
+             digitsaddress->Streamer(R__b);
+             if (i < AliMUONConstants::NTrackingCh()) {
+                 rawcladdress=(TClonesArray*) (*fRawClusters)[i];
+                 rawcladdress->Streamer(R__b);
+             }
          }
-          response=iChamber->GetResponseModel();
-         response->Streamer(R__b);       
-         digitsaddress=(TClonesArray*) (*fDchambers)[i];
-         digitsaddress->Streamer(R__b);
-      }
-      
-   } else {
-      R__b.WriteVersion(AliMUON::IsA());
-      AliDetector::Streamer(R__b);
-      R__b << fNclusters;
-      R__b << fClusters; // diff
-      R__b << fDchambers;
-      R__b.WriteArray(fNdch, 10);
-      //
-      R__b << fAccCut;
-      R__b << fAccMin;
-      R__b << fAccMax; 
-      //   
-      R__b << fChambers;
-//  Stream chamber related information
-      for (Int_t i =0; i<10; i++) {
-         iChamber=(AliMUONchamber*) (*fChambers)[i];
-         iChamber->Streamer(R__b);
-         if (iChamber->Nsec()==1) {
-             segmentation=iChamber->GetSegmentationModel(1);
-             segmentation->Streamer(R__b);
-         } else {
-             segmentation=iChamber->GetSegmentationModel(1);
-             segmentation->Streamer(R__b);
-             segmentation=iChamber->GetSegmentationModel(2);
-             segmentation->Streamer(R__b);
+         
+      } else {
+         R__b.WriteVersion(AliMUON::IsA());
+         AliDetector::Streamer(R__b);
+         R__b << fNPadHits;
+         R__b << fPadHits; // diff
+         R__b << fNLocalTrigger;       
+         R__b << fLocalTrigger;       
+         R__b << fNGlobalTrigger;       
+         R__b << fGlobalTrigger; 
+         R__b << fDchambers;
+         R__b << fRawClusters;
+         R__b.WriteArray(fNdch, AliMUONConstants::NCh());
+         R__b.WriteArray(fNrawch, AliMUONConstants::NTrackingCh());
+         
+         R__b << fAccCut;
+         R__b << fAccMin;
+         R__b << fAccMax; 
+         
+         R__b << fChambers;
+         R__b << fTriggerCircuits;
+         for (i =0; i<AliMUONConstants::NTriggerCircuit(); i++) {
+             iTriggerCircuit=(AliMUONTriggerCircuit*) (*fTriggerCircuits)[i];
+             iTriggerCircuit->Streamer(R__b);
+         }
+         for (i =0; i<AliMUONConstants::NCh(); i++) {
+             iChamber=(AliMUONChamber*) (*fChambers)[i];
+             iChamber->Streamer(R__b);
+             if (iChamber->Nsec()==1) {
+                 segmentation=iChamber->SegmentationModel(1);
+                 if (segmentation)
+                     segmentation->Streamer(R__b);
+             } else {
+                 segmentation=iChamber->SegmentationModel(1);
+                 if (segmentation)
+                     segmentation->Streamer(R__b);
+                 segmentation=iChamber->SegmentationModel(2);
+                 if (segmentation)
+                     segmentation->Streamer(R__b);
+             }
+             response=iChamber->ResponseModel();
+             if (response)
+                 response->Streamer(R__b);
+             digitsaddress=(TClonesArray*) (*fDchambers)[i];
+             digitsaddress->Streamer(R__b);
+             if (i < AliMUONConstants::NTrackingCh()) {
+                 rawcladdress=(TClonesArray*) (*fRawClusters)[i];
+                 rawcladdress->Streamer(R__b);
+             }
          }
-          response=iChamber->GetResponseModel();
-         response->Streamer(R__b);
-         
-         digitsaddress=(TClonesArray*) (*fDchambers)[i];
-         digitsaddress->Streamer(R__b);
       }
-   }
 }
-AliMUONcluster* AliMUON::FirstPad(AliMUONhit*  hit) 
+#endif
+//_______________________________________________________________________
+AliMUONPadHit* AliMUON::FirstPad(AliMUONHit*  hit, TClonesArray *clusters) 
 {
-//
+// to be removed
     // Initialise the pad iterator
     // Return the address of the first padhit for hit
-    TClonesArray *theClusters = Clusters();
+    TClonesArray *theClusters = clusters;
     Int_t nclust = theClusters->GetEntriesFast();
-    if (nclust && hit->fPHlast > 0) {
-       sMaxIterPad=hit->fPHlast;
-       sCurIterPad=hit->fPHfirst;
-       return (AliMUONcluster*) fClusters->UncheckedAt(sCurIterPad-1);
+    if (nclust && hit->PHlast() > 0) {
+       AliMUON::fMaxIterPad=hit->PHlast();
+       AliMUON::fCurIterPad=hit->PHfirst();
+       return (AliMUONPadHit*) clusters->UncheckedAt(AliMUON::fCurIterPad-1);
     } else {
        return 0;
     }
 }
-
-AliMUONcluster* AliMUON::NextPad(
+//_______________________________________________________________________
+AliMUONPadHit* AliMUON::NextPad(TClonesArray *clusters
 {
-    sCurIterPad++;
-    if (sCurIterPad <= sMaxIterPad) {
-       return (AliMUONcluster*) fClusters->UncheckedAt(sCurIterPad-1);
+  // To be removed
+// Get next pad (in iterator) 
+//
+    AliMUON::fCurIterPad++;
+    if (AliMUON::fCurIterPad <= AliMUON::fMaxIterPad) {
+       return (AliMUONPadHit*) clusters->UncheckedAt(AliMUON::fCurIterPad-1);
     } else {
        return 0;
     }
 }
+//_______________________________________________________________________
 
-ClassImp(AliMUONcluster)
-//___________________________________________
-AliMUONcluster::AliMUONcluster(Int_t *clhits)
+AliMUONRawCluster *AliMUON::RawCluster(Int_t ichamber, Int_t icathod, Int_t icluster)
 {
-   fHitNumber=clhits[0];
-   fCathode=clhits[1];
-   fQ=clhits[2];
-   fPadX=clhits[3];
-   fPadY=clhits[4];
-   fQpad=clhits[5];
-   fRSec=clhits[6];
-}
-ClassImp(AliMUONdigit)
-//_____________________________________________________________________________
-AliMUONdigit::AliMUONdigit(Int_t *digits)
-{
-  //
-  // Creates a MUON digit object to be updated
-  //
-  fPadX        = digits[0];
-  fPadY        = digits[1];
-  fSignal      = digits[2];
-
-}
-//_____________________________________________________________________________
-AliMUONdigit::AliMUONdigit(Int_t *tracks, Int_t *charges, Int_t *digits)
-{
-    //
-    // Creates a MUON digit object
-    //
-    fPadX        = digits[0];
-    fPadY        = digits[1];
-    fSignal      = digits[2];
-    for(Int_t i=0; i<10; i++) {
-       fTcharges[i]  = charges[i];
-       fTracks[i]    = tracks[i];
+//
+//  Return rawcluster (icluster) for chamber ichamber and cathode icathod
+//  Obsolete ??
+    TClonesArray *muonRawCluster  = GetMUONData()->RawClusters(ichamber);
+    ResetRawClusters();
+    TTree *treeR = fLoader->TreeR();
+    Int_t nent=(Int_t)treeR->GetEntries();
+    treeR->GetEvent(nent-2+icathod-1);
+    //treeR->GetEvent(icathod);
+    //Int_t nrawcl = (Int_t)muonRawCluster->GetEntriesFast();
+
+    AliMUONRawCluster * mRaw = (AliMUONRawCluster*)muonRawCluster->UncheckedAt(icluster);
+    //printf("RawCluster _ nent nrawcl icluster mRaw %d %d %d%p\n",nent,nrawcl,icluster,mRaw);
+    
+    return  mRaw;
+}
+//________________________________________________________________________
+void   AliMUON::SetMerger(AliMUONMerger* merger)
+{
+// Set pointer to merger 
+    fMerger = merger;
+}
+//________________________________________________________________________
+AliMUONMerger*  AliMUON::Merger()
+{
+// Return pointer to merger
+    return fMerger;
+}
+//________________________________________________________________________
+AliMUON& AliMUON::operator = (const AliMUON& /*rhs*/)
+{
+// copy operator
+// dummy version
+    return *this;
+}
+//________________________________________________________________________
+void AliMUON::Reconstruct() const
+{
+// reconstruct clusters
+
+  AliLoader* loader = GetLoader();
+  AliRunLoader* runLoader = loader->GetRunLoader();
+  Int_t nEvents = runLoader->GetNumberOfEvents();
+
+  for (Int_t i = 0; i < 10; i++) {
+    AliMUONClusterFinderVS *RecModel = new AliMUONClusterFinderVS();
+    RecModel->SetGhostChi2Cut(10);
+    const_cast<AliMUON*>(this)->SetReconstructionModel(i,RecModel);
+  } 
+
+  AliMUONEventReconstructor* reco = new AliMUONEventReconstructor();
+
+  loader->LoadRecPoints("RECREATE");
+  loader->LoadTracks("RECREATE");
+  loader->LoadDigits("READ");
+
+
+  //   Loop over events              
+  for(Int_t ievent = 0; ievent < nEvents; ievent++) {
+    printf("event %d\n",ievent);
+    runLoader->GetEvent(ievent);
+
+    //---------------------------- digit2Reco & Trigger ---------------------
+    if (!loader->TreeR()) loader->MakeRecPointsContainer();
+     
+    // tracking branch
+    fMUONData->MakeBranch("RC");
+    fMUONData->SetTreeAddress("D,RC");
+    const_cast<AliMUON*>(this)->Digits2Reco(); 
+
+    // trigger branch
+    fMUONData->MakeBranch("GLT");
+    fMUONData->SetTreeAddress("D,GLT");
+    const_cast<AliMUON*>(this)->Trigger(ievent); 
+
+    //---------------------------- Track & TriggerTrack ---------------------
+    if (!loader->TreeT()) loader->MakeTracksContainer();
+
+    fMUONData->MakeBranch("RT"); //track
+    fMUONData->SetTreeAddress("RT");
+    reco->EventReconstruct();
+    for(Int_t i=0; i<reco->GetNRecTracks(); i++) {
+      AliMUONTrack * track = (AliMUONTrack*) reco->GetRecTracksPtr()->At(i);
+      fMUONData->AddRecTrack(*track);
     }
-}
-
-ClassImp(AliMUONlist)
-//____________________________________________________________________________
-    AliMUONlist::AliMUONlist(Int_t rpad, Int_t *digits): 
-       AliMUONdigit(digits)
-{
-    //
-    // Creates a MUON digit list object
-    //
-
-    fRpad = rpad;
-    fTrackList   = new TObjArray;
-}
-//_____________________________________________________________________________
-
-
-ClassImp(AliMUONhit)
-//___________________________________________
-    AliMUONhit::AliMUONhit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
-       AliHit(shunt, track)
-{
-    fChamber=vol[0];
-    fParticle=(Int_t) hits[0];
-    fX=hits[1];
-    fY=hits[2];
-    fZ=hits[3];
-    fTheta=hits[4];
-    fPhi=hits[5];
-    fTlength=hits[6];
-    fEloss=hits[7];
-    fPHfirst=(Int_t) hits[8];
-    fPHlast=(Int_t) hits[9];
-}
-ClassImp(AliMUONreccluster) 
-
-ClassImp(AliMUONRecCluster)
-
-//_____________________________________________________________________
-AliMUONRecCluster::AliMUONRecCluster()
-{
-    fDigits=0;
-    fNdigit=-1;
-}
-
-AliMUONRecCluster::
-AliMUONRecCluster(Int_t FirstDigit,Int_t Ichamber, Int_t Icathod)
-{
-    fX = 0.;
-    fY = 0.;
-    fDigits = new TArrayI(10);
-    fNdigit=0;
-    AddDigit(FirstDigit);
-    fChamber=Ichamber;
-    fCathod=Icathod;
-}
-
-void AliMUONRecCluster::AddDigit(Int_t Digit)
-{
-    if (fNdigit==fDigits->GetSize()) {
-       //enlarge the list by hand!
-       Int_t *array= new Int_t[fNdigit*2];
-       for(Int_t i=0;i<fNdigit;i++)
-           array[i] = fDigits->At(i);
-       fDigits->Adopt(fNdigit*2,array);
+    fMUONData->Fill("RT");
+
+    fMUONData->MakeBranch("RL"); //trigger track
+    fMUONData->SetTreeAddress("RL");
+    reco->EventReconstructTrigger();
+    for(Int_t i=0; i<reco->GetNRecTriggerTracks(); i++) {
+      AliMUONTriggerTrack * triggertrack = (AliMUONTriggerTrack*) reco->GetRecTriggerTracksPtr()->At(i);
+      fMUONData->AddRecTriggerTrack(*triggertrack);
     }
-    fDigits->AddAt(Digit,fNdigit);
-    fNdigit++;
-}
-
+    fMUONData->Fill("RL");
 
-AliMUONRecCluster::~AliMUONRecCluster()
-{
-    if (fDigits)
-       delete fDigits;
+    loader->WriteTracks("OVERWRITE");  
+  
+    //--------------------------- Resetting branches -----------------------
+    fMUONData->ResetDigits();
+    fMUONData->ResetRawClusters();
+    fMUONData->ResetTrigger();
+    fMUONData->ResetRecTracks();
+    fMUONData->ResetRecTriggerTracks();
+  }
+  loader->UnloadDigits();
+  loader->UnloadRecPoints();
+  loader->UnloadTracks();
 }
-
-Int_t AliMUONRecCluster::FirstDigitIndex()
+//________________________________________________________________________
+void AliMUON::FillESD(AliESD* event) const
 {
-    fCurrentDigit=0;
-    return fDigits->At(fCurrentDigit);
-}
 
-Int_t AliMUONRecCluster::NextDigitIndex()
-{
-    fCurrentDigit++;
-    if (fCurrentDigit<fNdigit)
-       return fDigits->At(fCurrentDigit);
-    else 
-       return InvalidDigitIndex();
-}
+  TClonesArray * recTracksArray;
+  
+  AliLoader* loader = GetLoader();
+  AliRunLoader* runLoader = loader->GetRunLoader();
+  loader->LoadTracks("READ");
 
-Int_t AliMUONRecCluster::NDigits()
-{
-    return fNdigit;
-}
 
-void AliMUONRecCluster::Finish()
-{
-    // In order to reconstruct coordinates, one has to
-    // get back to the digits which is not trivial here,
-    // because we don't know where digits are stored!
-    // Center Of Gravity, or other method should be
-    // a property of AliMUON class!
-}
+  // declaration  
+  Int_t ievent;
+  Int_t ntrackhits;
+  Double_t fitfmin;
+  Int_t nrectracks;
 
+  Double_t bendingSlope, nonBendingSlope, fInverseBendingMomentum;
+  Double_t fXRec, fYRec, fZRec;
 
+  Float_t  x11, y11, thetaX,thetaY ;
 
+  Int_t nEvents = runLoader->GetNumberOfEvents();
 
+  // setting pointer for tracks, triggertracks& trackparam at vertex
+  AliMUONTrack * rectrack;
+  AliMUONTriggerTrack * rectriggertrack;
+  AliMUONTrackParam *trackParam;
 
+  for (ievent = 0; ievent < nEvents; ievent++) {
+    runLoader->GetEvent(ievent);
 
+    // setting ESD MUON class
+    AliESDMuonTrack* ESDTrack = new  AliESDMuonTrack() ;
 
+    // -------------------- tracks-------------
+    fMUONData->SetTreeAddress("RT");
+    fMUONData->GetRecTracks();
+    recTracksArray = fMUONData->RecTracks();
+        
+    nrectracks = (Int_t) recTracksArray->GetEntriesFast(); //
+    // printf(">>> Event %d Number of Recconstructed tracks %d \n",ievent, nrectracks);
+   
+    // read track infos
+    for (Int_t irectracks = 0; irectracks <  nrectracks;  irectracks++) {
+
+      rectrack = (AliMUONTrack*) recTracksArray->At(irectracks);
+
+      trackParam = rectrack->GetTrackParamAtVertex();
+
+      bendingSlope            = trackParam->GetBendingSlope();
+      nonBendingSlope         = trackParam->GetNonBendingSlope();
+      fInverseBendingMomentum = trackParam->GetInverseBendingMomentum();
+      fXRec  = trackParam->GetNonBendingCoor();
+      fYRec  = trackParam->GetBendingCoor();
+      fZRec  = trackParam->GetZ();
+
+      ntrackhits = rectrack->GetNTrackHits();
+      fitfmin = rectrack->GetFitFMin();
+
+      // setting data member of ESD MUON
+      ESDTrack->SetInverseBendingMomentum(fInverseBendingMomentum);
+      ESDTrack->SetThetaX(TMath::ATan(nonBendingSlope));
+      ESDTrack->SetThetaY(TMath::ATan(bendingSlope));
+      ESDTrack->SetZ(fZRec);
+      ESDTrack->SetBendingCoor(fYRec);
+      ESDTrack->SetNonBendingCoor(fXRec);
+      ESDTrack->SetChi2(fitfmin);
+      ESDTrack->SetNHit(ntrackhits);
+    }
 
+ //    // -------------------- trigger tracks-------------
+    fMUONData->SetTreeAddress("RL");
+    fMUONData->GetRecTriggerTracks();
+    recTracksArray = fMUONData->RecTriggerTracks();
+        
+    nrectracks = (Int_t) recTracksArray->GetEntriesFast(); //
+    //  printf(">>> Event %d Number of Recconstructed tracks %d \n",ievent, nrectracks);
+   
+    // read trigger track infos
+    for (Int_t irectracks = 0; irectracks <  nrectracks;  irectracks++) {
+
+      rectriggertrack = (AliMUONTriggerTrack*) recTracksArray->At(irectracks);
+    
+      x11 = rectriggertrack->GetY11();
+      y11 = rectriggertrack->GetY11();
+      thetaX = rectriggertrack->GetThetax();
+      thetaY = rectriggertrack->GetThetay();
+
+      // setting data member of ESD MUON trigger
+      ESDTrack->SetThetaX11(thetaX);
+      ESDTrack->SetThetaY11(thetaY);
+      ESDTrack->SetX11(x11);
+      ESDTrack->SetY11(y11);
+    }
 
+    // storing ESD MUON Track into ESD Event & reset muondata
+    event->AddMuonTrack(ESDTrack);
+    fMUONData->ResetRecTracks();
+    fMUONData->ResetRecTriggerTracks();
 
+  } // end loop on event  
+  loader->UnloadTracks();
+}