/[PAMELA software]/PamelaLevel2/src/PamLevel2.cpp

Diff of /PamelaLevel2/src/PamLevel2.cpp

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-revision 1.1.1.1 by pam-fi,
Fri Jun 16 16:43:55 2006 UTC
+revision 1.45 by pam-fi,
Wed Sep 12 08:14:00 2007 UTC
 Line 7
   * Default constructor
   */
  PamTrack::PamTrack(){
-     trk_track  = this->TrkTrack::GetTrkTrack();
+     trk_track  = 0;
-     calo_track = this->CaloTrkVar::GetCaloTrkVar();
+     calo_track = 0;
-     tof_track  = this->ToFTrkVar::GetToFTrkVar();
+     tof_track  = 0;
+     candeleteobj = 0;
  };
  //--------------------------------------
  //
-Line 19 
 PamTrack::PamTrack(){
+Line 20 
 PamTrack::PamTrack(){
   * Constructor
   */
  PamTrack::PamTrack(TrkTrack* t, CaloTrkVar* c, ToFTrkVar* o){
-     trk_track  = this->TrkTrack::GetTrkTrack();
-     calo_track = this->CaloTrkVar::GetCaloTrkVar();
+     trk_track  = 0;
-     tof_track  = this->ToFTrkVar::GetToFTrkVar();
+     calo_track = 0;
-     if(t) *trk_track  = *t;
+     tof_track  = 0;
-     if(c) *calo_track = *c;
+ //     if(t)trk_track  = new TrkTrack(*t);
-     if(o) *tof_track  = *o;
+ //     if(c)calo_track = new CaloTrkVar(*c);
+ //     if(o)tof_track  = new ToFTrkVar(*o);
+     if(t)trk_track  = t;
+     if(c)calo_track = c;
+     if(o)tof_track  = o;
+     candeleteobj = 0;
  };
+ PamTrack::PamTrack(const PamTrack& track){
+     TrkTrack   *t = track.trk_track;
+     CaloTrkVar *c = track.calo_track;
+     ToFTrkVar  *o = track.tof_track;
+     trk_track  = 0;
+     calo_track = 0;
+     tof_track  = 0;
+     if(t)trk_track  = new TrkTrack(*t);
+     if(c)calo_track = new CaloTrkVar(*c);
+     if(o)tof_track  = new ToFTrkVar(*o);
+     candeleteobj = 1;
+ }
+ void PamTrack::Clear(){
+ //    cout << "PamTrack::Clear() "<<candeleteobj<<endl;
+     if(candeleteobj){
+         if(trk_track)  trk_track->TrkTrack::Clear();
+         if(calo_track) calo_track->CaloTrkVar::Clear();//???
+         if(tof_track)  tof_track->ToFTrkVar::Clear();//???
+     }else{
+         trk_track  = 0;
+         calo_track = 0;
+         tof_track  = 0;
+     }
+ }
+ void PamTrack::Delete(){
+ //    cout << "PamTrack::Delete() "<<candeleteobj<<endl;
+     if(candeleteobj){
+         if(trk_track)  {
+             trk_track->TrkTrack::Clear();
+             delete trk_track;
+         }
+         if(calo_track){
+             calo_track->CaloTrkVar::Clear();//???
+             delete calo_track;
+         }
+         if(tof_track){
+             tof_track->ToFTrkVar::Clear();//???
+             delete tof_track;
+         }
+     }else{
+         Clear();
+     }
+ }
  //--------------------------------------
  //
  //
  //--------------------------------------
  /**
-  * Constructor
+  * Default Constructor
   */
  PamLevel2::PamLevel2(){
-     trk_obj  = this->TrkLevel2::GetTrkLevel2();
+   Initialize();
-     calo_obj = this->CaloLevel2::GetCaloLevel2();
+ };
-     tof_obj  = this->ToFLevel2::GetToFLevel2();
-     trig_obj = this->TrigLevel2::GetTrigLevel2();
+ /**
-     s4_obj   = this->S4Level2::GetS4Level2();
+  * Constructor with given dir, list and detectors
-     nd_obj   = this->NDLevel2::GetNDLevel2();
+  */
-     ac_obj   = this->AcLevel2::GetAcLevel2();
+ PamLevel2::PamLevel2(TString ddir,TString list,TString detlist){
+   Initialize();
+   GetPamTree(GetListOfLevel2Files(ddir,list),detlist);
+   GetRunTree(GetListOfLevel2Files(ddir,list));
+ };
+ /**
+  * Constructor with given dir and list
+  */
+ PamLevel2::PamLevel2(TString ddir,TString list){
+   Initialize();
+   GetPamTree(GetListOfLevel2Files(ddir,list),"");
+   GetRunTree(GetListOfLevel2Files(ddir,list));
+ };
+ void PamLevel2::Initialize(){
+     h0_obj    = 0;
+     trk0_obj  = 0;
+     calo0_obj  = 0;
+     trk2_obj  = 0;
+     trk1_obj  = 0;
+     trkh_obj  = 0;
+     calo1_obj = 0;
+     calo2_obj = 0;
+     tof_obj   = 0;
+     trig_obj  = 0;
+     s4_obj    = 0;
+     nd_obj    = 0;
+     ac_obj    = 0;
+     orb_obj   = 0;
+     run_obj   = 0;//new GL_RUN();
+     soft_obj   = 0;// Emiliano
+     irun = -1LL;
+     runfirstentry = 0LL;
+     runlastentry = 0LL;
+     l0_file = NULL;
+     l0_tree = NULL;
+     iroot   = -1;
+     dbc     = 0;
+     prevshift = 0;
+     run_tree = NULL;
+     run_tree_clone = NULL;
+     sel_tree = NULL;
+     sel_tree_clone = NULL;
+     irunentry = -1LL;
+     pam_tree = NULL;
+     for(Int_t i=0; i<NCLONES; i++ )pam_tree_clone[i]=NULL;
+     totdltime[0] = 0LL;
+     totdltime[1] = 0LL;
+     host = "mysql://localhost/pamelaprod";
+     user = "anonymous";
+     psw = "";
+     const char *pamdbhost=gSystem->Getenv("PAM_DBHOST");
+     const char *pamdbuser=gSystem->Getenv("PAM_DBUSER");
+     const char *pamdbpsw=gSystem->Getenv("PAM_DBPSW");
+     if ( !pamdbhost ) pamdbhost = "";
+     if ( !pamdbuser ) pamdbuser = "";
+     if ( !pamdbpsw ) pamdbpsw = "";
+     if ( strcmp(pamdbhost,"") ) host = pamdbhost;
+     if ( strcmp(pamdbuser,"") ) user = pamdbuser;
+     if ( strcmp(pamdbpsw,"") ) psw = pamdbpsw;
+ //    sorted_tracks = 0;//new TRefArray();
+     CAL0 = false;
+     CAL1 = true;
+     CAL2 = true;
+     TRK2 = true;
+     TRK1 = false;
+     TRKh = false;
+     TRKh = false;
+     TRG  = true;
+     TOF  = true;
+     TOF0 = false;
+     S4   = true;
+     ND   = true;
+     AC   = true;
+     ORB  = true;
+     RUN  = true;
+     SELLI = -1;
+     ISGP = false;
+     tsorted=0;
+     timage=0;
+     howtosort = "+CAL+TOF";
+     //howtosort = "+TOF";
+     sortthr = 100.;
+ };
+ /**
+  * Delete the event (act as Dtor)
+  */
+ void PamLevel2::Delete(){
+     if(run_obj)delete run_obj;
+     if(soft_obj)delete soft_obj; //Emiliano
+ //    cout << "void PamLevel2::Clear()"<<endl;
+     if(h0_obj)   delete h0_obj;
+     if(trk0_obj) delete trk0_obj;
+     if(calo0_obj) delete calo0_obj;
+     if(trk1_obj) delete trk1_obj;
+     if(trk2_obj) delete trk2_obj;
+     if(trkh_obj) delete trkh_obj;
+     if(calo1_obj)delete calo1_obj;
+     if(calo2_obj)delete calo2_obj;
+     if(tof_obj)  delete tof_obj;
+     if(trig_obj) delete trig_obj;
+     if(s4_obj)   delete s4_obj;
+     if(nd_obj)   delete nd_obj;
+     if(ac_obj)   delete ac_obj;
+     if(orb_obj)  delete orb_obj;
+     if(tsorted){
+         tsorted->Delete();
+         delete tsorted;
+     }
+     if(timage){
+         timage->Delete();
+         delete timage;
+     }
+     if(dbc){
+         dbc->Close();
+         delete dbc;
+     }
+     if(l0_file)l0_file->Close();
+     //    if(pam_tree)pam_tree->Delete();;
+   if ( pam_tree ){
+     //
+     // we have first to find which chains we have to delete, then delete the main chain and only after delete the friend chains. Any other order causes a segfault...
+     //
+     TList *temp = pam_tree->GetListOfFriends();
+     TList *contents  = new TList; // create chain friend list
+     contents->SetOwner();
+     TIter next(temp);
+     TChain *questo = 0;
+     while ( (questo = (TChain*) next()) ){
+       TString name =  questo->GetName();
+       contents->Add((TChain*)gROOT->FindObject(name.Data()));// add object to the list
+     };
+     //
+     // deleting the main chain
+     //
+     pam_tree->Delete();
+     //
+     // deleting the friends...
+     //
+     TIter next2(contents);
+     TChain *questa = 0;
+     while ( questa = (TChain*)next2() ){
+       TString name =  questa->GetName();
+       questa->Delete();
+       questa=NULL;
+     };
+     //
+   };
+   pam_tree = NULL;
+     if(run_tree)run_tree->Delete();;
+     if(sel_tree)sel_tree->Delete();;
+     for(Int_t i=0; i<NCLONES; i++ )if(pam_tree_clone[i])pam_tree_clone[i]->Delete();;
+     if(run_tree_clone)run_tree_clone->Delete();;
+     if(sel_tree_clone)sel_tree_clone->Delete();;
+ };
+ /**
+  * Clear the event (NB! does not deallocate objects)
+  */
+ void PamLevel2::Clear(){
+ //    cout << "void PamLevel2::Clear()"<<endl;
+ //
+ // This method is called once for every entry but RunInfo and SoftInfo do not change until the next run so we cannot clear them here unless we don't
+ // want to load them for each event even if they are the same...
+ //
+ //    if(run_obj)delete run_obj;
+ //    if(run_obj) run_obj->Clear();  // Emiliano: Do not deallocate run_obj here, it will give segmentation fault! call clear instead
+ //    if(soft_obj) soft_obj->Clear();
+     if(h0_obj)   h0_obj->Clear();
+ //    if(trk0_obj) trk0_obj->Clear();
+     if(trk1_obj) trk1_obj->Clear();
+     if(trk2_obj) trk2_obj->Clear();
+     if(trkh_obj) trkh_obj->Clear();
+     if(calo0_obj) calo0_obj->Clear();
+     if(calo1_obj)calo1_obj->Clear();
+     if(calo2_obj)calo2_obj->Clear();
+     if(tof_obj)  tof_obj->Clear();
+     if(trig_obj) trig_obj->Clear();
+     if(s4_obj)   s4_obj->Clear();
+     if(nd_obj)   nd_obj->Clear();
+     if(ac_obj)   ac_obj->Clear();
+     if(orb_obj)  orb_obj->Clear();
+ //    if(sorted_tracks)sorted_tracks->Clear();
+ //    sorted_tracks.Clear();
+     if(tsorted){
+         tsorted->Delete();
+     }
+     if(timage){
+         timage->Delete();
+     }
+ };
+ void PamLevel2::Reset(){
+   //
+   // First of all clear everything
+   //
+   Clear();
+   //
+   // close and reset chains and pointers
+   //
+   if ( pam_tree ){
+     //
+     // we have first to find which chains we have to delete, then delete the main chain and only after delete the friend chains. Any other order causes a segfault...
+     //
+     TList *temp = pam_tree->GetListOfFriends();
+     TList *contents  = new TList; // create chain friend list
+     contents->SetOwner();
+     TIter next(temp);
+     TChain *questo = 0;
+     while ( (questo = (TChain*) next()) ){
+       TString name =  questo->GetName();
+       contents->Add((TChain*)gROOT->FindObject(name.Data()));// add object to the list
+     };
+     //
+     // deleting the main chain
+     //
+     pam_tree->Delete();
+     //
+     // deleting the friends...
+     //
+     TIter next2(contents);
+     TChain *questa = 0;
+     while ( questa = (TChain*)next2() ){
+       TString name =  questa->GetName();
+       questa->Delete();
+       questa=NULL;
+     };
+     //
+   };
+   pam_tree = NULL;
+   //
+   if(run_tree)run_tree->Delete();;
+   run_tree = NULL;
+   if(sel_tree)sel_tree->Delete();;
+   sel_tree = NULL;
+   //
+   // Close file
+   //
+   if(l0_file)l0_file->Close("R");
+   l0_file = NULL;
+   //
+   h0_obj    = 0;
+   trk0_obj  = 0;
+   calo0_obj  = 0;
+   //
+   trk2_obj  = 0;
+   trk1_obj  = 0;
+   trkh_obj  = 0;
+   calo1_obj = 0;
+   calo2_obj = 0;
+   tof_obj   = 0;
+   trig_obj  = 0;
+   s4_obj    = 0;
+   nd_obj    = 0;
+   ac_obj    = 0;
+   orb_obj   = 0;
+   //
+   // Reset run pointers
+   //
+   run_obj   = 0;//new GL_RUN();
+   soft_obj   = 0;// Emiliano
+   irun = -1;
+   runfirstentry = 0ULL;
+   runlastentry = 0ULL;
+   //
+   totdltime[0] = 0LL;
+   totdltime[1] = 0LL;
+   //
+ };
+ Bool_t PamLevel2::IsGood(){
+   Bool_t goodev=true;
+   //  if(trk2_obj && trk2_obj->UnpackError() != 0 ) goodev = false;
+   if(calo2_obj && calo2_obj->good != 1) goodev = false;
+   if(tof_obj && tof_obj->unpackError != 0) goodev = false;
+   if(trig_obj && trig_obj->unpackError != 0) goodev = false;
+   if(s4_obj && s4_obj->unpackError != 0) goodev = false;
+   if(nd_obj && nd_obj->unpackError != 0) goodev = false;
+   if(ac_obj && ac_obj->unpackError != 255) goodev = false;
+     //  if(orb_obj)
+   return goodev;
+ };
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ void *PamLevel2::GetPointerTo(const char* c ){
+     TString objname = c;
+     if(!objname.CompareTo("TrkLevel1"))  {
+         if(!trk1_obj){
+             trk1_obj  = new TrkLevel1();
+             trk1_obj->Set();
+         }
+         return &trk1_obj;
+     };
+     if(!objname.CompareTo("TrkLevel2"))  {
+         if(!trk2_obj){
+             trk2_obj  = new TrkLevel2();
+             trk2_obj->Set();
+         }
+         return &trk2_obj;
+     };
+     if(!objname.CompareTo("TrkHough"))   {
+         if(!trkh_obj)  trkh_obj  = new TrkHough();
+         return &trkh_obj;
+     };
+     if(!objname.CompareTo("CaloLevel1")) {
+         if(!calo1_obj) calo1_obj = new CaloLevel1();
+         return &calo1_obj;
+     };
+     if(!objname.CompareTo("CaloLevel2")) {
+         if(!calo2_obj){
+             calo2_obj = new CaloLevel2();
+             calo2_obj->Set();
+         };
+         return &calo2_obj;
+     };
+     if(!objname.CompareTo("ToFLevel2"))  {
+         if(!tof_obj){
+             tof_obj   = new ToFLevel2();
+             tof_obj->Set();
+         }
+         return &tof_obj;
+     };
+     if(!objname.CompareTo("TrigLevel2")) {
+         if(!trig_obj)  trig_obj  = new TrigLevel2();
+         return &trig_obj;
+     };
+     if(!objname.CompareTo("S4Level2"))   {
+         if(!s4_obj)    s4_obj    = new S4Level2();
+         return &s4_obj;
+     };
+     if(!objname.CompareTo("NDLevel2"))   {
+         if(!nd_obj)    nd_obj    = new NDLevel2();
+         return &nd_obj;
+     };
+     if(!objname.CompareTo("AcLevel2"))   {
+         if(!ac_obj)    ac_obj    = new AcLevel2();
+         return &ac_obj;
+     };
+     if(!objname.CompareTo("OrbitalInfo")){
+         if(!orb_obj)   orb_obj   = new OrbitalInfo();
+         return &orb_obj;
+     };
+     if(!objname.CompareTo("RunInfo"))return &run_obj;
+     if(!objname.CompareTo("SoftInfo"))return &soft_obj; // Emiliano
+     return NULL;
  };
  //--------------------------------------
  //
  //
  //--------------------------------------
  /**
+  * Retrieves the calorimeter track matching the seqno-th tracker stored track.
+  * (If seqno = -1 retrieves the self-trigger calorimeter track)
+  */
+  CaloTrkVar *PamLevel2::GetCaloStoredTrack(int seqno){
+      if( !calo2_obj )return 0;
+      if( calo2_obj->CaloLevel2::ntrk()==0 ){
+          cout << "PamLevel2::GetCaloStoredTrack(int) : requested tracker SeqNo "<< seqno <<" but no Calorimeter tracks are stored"<<endl;
+          return NULL;
+      };
+      CaloTrkVar *c = 0;
+      Int_t it_calo=0;
+      do{
+          c = calo2_obj->CaloLevel2::GetCaloTrkVar(it_calo);
+          it_calo++;
+      } while( c && seqno != c->trkseqno && it_calo < calo2_obj->CaloLevel2::ntrk());
+      if(!c || seqno != c->trkseqno){
+          c = 0;
+          if(seqno!=-1)cout << "PamLevel2::GetCaloStoredTrack(int) : requested tracker SeqNo "<< seqno <<" does not match Calorimeter stored tracks"<<endl;
+      };
+      return c;
+  };
+ //--------------------------------------
+  //
+  //
+ //--------------------------------------
+ /**
+   * Retrieves the ToF track matching the seqno-th tracker stored track.
+   * (If seqno = -1 retrieves the tracker-independent tof track)
+  */
+  ToFTrkVar *PamLevel2::GetToFStoredTrack(int seqno){
+      if( !tof_obj )return 0;
+      if( tof_obj->ToFLevel2::ntrk()==0 ){
+          cout << "PamLevel2::GetToFStoredTrack(int) : requested tracker SeqNo "<< seqno <<" but no ToF tracks are stored"<<endl;
+          return NULL;
+      };
+      ToFTrkVar *c = 0;
+      Int_t it_tof=0;
+      do{
+          c = tof_obj->ToFLevel2::GetToFTrkVar(it_tof);
+          it_tof++;
+      } while( c && seqno != c->trkseqno && it_tof < tof_obj->ToFLevel2::ntrk());
+      if(!c || seqno != c->trkseqno){
+          c = 0;
+          if(seqno!=-1)cout << "PamLevel2::GetToFStoredTrack(int) : requested tracker SeqNo "<< seqno <<" does not match ToF stored tracks"<<endl;
+      };
+      return c;
+  };
+ //--------------------------------------
+  //
+  //
+ //--------------------------------------
+ /**
+  * Give the pamela track associated to a tracker track, retrieving related calorimeter and tof track information.
+  */
+  PamTrack* PamLevel2::GetPamTrackAlong(TrkTrack* t){
+      cout <<"PamLevel2::GetPamTrackAlong(TrkTrack* t) **obsolete** "<<endl;
+      cout <<"(if you use it, remember to delete the PamTrack object)"<<endl;
+      CaloTrkVar *c = 0;
+      ToFTrkVar  *o = 0;
+      if(CAL2) c = GetCaloStoredTrack(t->GetSeqNo());
+      if(TOF) o = GetToFStoredTrack(t->GetSeqNo());
+ //    if(t && c && o)track = new PamTrack(t,c,o);
+      PamTrack *track = new PamTrack(t,c,o);
+      return track;
+  };
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
   * Retrieves the it-th stored track.
   * It override TrkLevel2::GetTrack(int it).
   * @param itrk Track number, ranging from 0 to GetNTracks().
-Line 55 
 PamLevel2::PamLevel2(){
+Line 584 
 PamLevel2::PamLevel2(){
  PamTrack* PamLevel2::GetStoredTrack(Int_t itrk){
-     // retrieve itrk-th tracker stored track
+     cout <<"PamLevel2::GetStoredTrack(Int_t itrk) **to-be-updated** "<<endl;
-     TrkTrack   *t = 0;
+     cout <<"for the moment, better use separately the methods: TrkLevel2::GetStoredTrack(seqno) CaloLevel2::GetCaloTrkVar(Int_t notrack) ToFLevel2::GetToFTrkVar(Int_t notrack)"<<endl;
-     CaloTrkVar *c = 0;
+     cout <<"(if you use it, remember to delete the PamTrack object)"<<endl;
-     ToFTrkVar  *o = 0;
+     PamTrack *track = 0;
-     if( itrk >=0 && itrk < TrkLevel2::ntrk() ){
+     if( itrk >=0 && itrk < trk2_obj->TrkLevel2::ntrk() ){
-         t = TrkLevel2::GetStoredTrack(itrk);
-         c = CaloLevel2::GetCaloTrkVar(t->GetSeqNo());
+         TrkTrack *t = trk2_obj->TrkLevel2::GetStoredTrack(itrk);
-         o = ToFLevel2::GetToFTrkVar(t->GetSeqNo());
+         track = GetPamTrackAlong(t);
+     }else{
+         cout << "PamLevel2::GetStoredTrack(int) : tracker track SeqNo "<< itrk <<" does not exist (GetNTracks() = "<<trk2_obj->TrkLevel2::GetNTracks()<<")"<<endl;
      };
-     //  retrieve related ToF-track
-     // hence create a "PamTrack" object
-     PamTrack *track = 0;
-     if(t && c && o)track = new PamTrack(t,c,o);
      return track;
  }
  //--------------------------------------
  //
+ /**
+  * Sort physical (tracker) tracks and stores them in the TRefArray (of TrkTrack objects) which pointer is  PamLevel2::sorted_tracks. Left here as backward compatibility method.
+  **/
+ void PamLevel2::SortTracks(TString how){
+   printf(" WARNING! obsolete, use SortTracks() and SetSortingMethod(TString) instead! \n Setting sorting method to %s \n",how.Data());
+   howtosort = how;
+   SortTracks();
+ };
  //
  //--------------------------------------
  /**
-  * Sort physical (tracker) tracks and stores them in a TObjectArray (of TrkTrack objects).
+  * Sort physical (tracker) tracks and stores them in the TRefArray (of TrkTrack objects) which pointer is  PamLevel2::sorted_tracks.
-  * The total number of physical tracks is given by GetNTracks() and the it-th physical track can be retrieved by means of the method GetTrack(int it).
+  * @param how String to set the sorting cryterium (es: "CAL" or "TRK+CAL+TOF" ecc...).
-  * This method overrides TrkLevel2::GetTracks(), where sorting is done by decreasing number of fit points and increasing chi^2.
+  * Sorting cryteria:
-  * PamLevel2::GetTracks() keeps the same track order given by TrkLevel2::GetTracks(), but checks image selection by using calorimeter and ToF tracking information.
+  * TRK: lower chi**2
+  * CAL: lower Y spatial residual on the first calorimeter plane
+  * TOF: bigger numebr of hit PMTs along the track, on S12 S21 S32 (where paddles are along the Y axis).
+  * The default sorting cryterium is "TOF+CAL".
+  *
+  * The total number of physical tracks is always given by GetNTracks() and the it-th physical track can be retrieved by means of the methods GetTrack(int it) and GetTrack(int it, TString how).
   */
- TClonesArray *PamLevel2::GetTracks(){
+ void PamLevel2::SortTracks(){
+   TString how = howtosort;
-     // define new array for sorted tracker tracks
+   //    cout <<" PamLevel2::SortTracks(TString how) "<<endl;
-     TClonesArray *aa = new TClonesArray("TrkTrack");
+   if( !trk2_obj ){
-     TClonesArray &sorted = *aa;
+     cout << "void PamLevel2::SortTracks():  TrkLevel2 not loaded !!!";
+     return;
-     // loop over the tracks sorted by the tracker
+   };
-     for(Int_t i=0; i < TrkLevel2::GetNTracks(); i++){
+   //    cout << "call SortTracs() "<<endl;
+   //Save current Object count
-         TrkTrack *ts=0;
+   Int_t ObjectNumber = TProcessID::GetObjectCount();
-         // get tracker tracks
+   //    cout << "ObjectNumber  "<<ObjectNumber <<endl;
-         TrkTrack   *tp = TrkLevel2::GetTrack(i);                    //tracker
-         CaloTrkVar *cp = CaloLevel2::GetCaloTrkVar(tp->GetSeqNo()); //calorimeter
+   //     if(!sorted_tracks)sorted_tracks = new TRefArray();
-         ToFTrkVar  *op = ToFLevel2::GetToFTrkVar(tp->GetSeqNo());   //tof
+   //     sorted_tracks->Clear();
+   //    sorted_tracks.Clear();
-         // if track has an image, check image selection
-         if(tp->HasImage()){
+   if(!tsorted)tsorted = new TClonesArray("PamTrack",trk2_obj->GetNTracks());
-             TrkTrack   *ti = TrkLevel2::GetTrackImage(i);              //tracker (image)
+   tsorted->Delete();
-             CaloTrkVar *ci = CaloLevel2::GetCaloTrkVar(ti->GetSeqNo());//calorimeter (image)
+   TClonesArray &ttsorted = *tsorted;
-             ToFTrkVar  *oi = ToFLevel2::GetToFTrkVar(ti->GetSeqNo());  //tof (image)
+   if(!timage)timage = new TClonesArray("PamTrack",trk2_obj->GetNTracks());
+   timage->Delete();
-             //assign starting scores
+   TClonesArray &ttimage = *timage;
-             Int_t tp_score = 1;
-             Int_t ti_score = 0;
-             // ------------------------
-             // calorimeter check
-             // ------------------------
-             if(
-                       npcfit[1] > 3   &&  //no. of fit planes on Y view
- //              varcfit[1] < 50.&&  //fit variance on Y view
-                       true){
-                 Float_t resy_p = cp->tbar[0][1] - cbar[0][1];if(resy_p < 0)resy_p= - resy_p;
-                 Float_t resy_i = ci->tbar[0][1] - cbar[0][1];if(resy_i < 0)resy_i= - resy_i;
-                 if(resy_p <= resy_i) tp_score++;
-                 else                 ti_score++;
-                       };
-             // ------------------------
-             // TOF check
-             // ------------------------
-             // ------------------------
-             // the winner is....
-             // ------------------------
-                       if(tp_score > ti_score) ts = tp;//the track sorted by the tracker!!
-                       else                    ts = ti;//its image!!
-         }else{
-             ts = tp;
-         };
+   //--------------------------------------------------
+   // retrieve sorting method
+   //--------------------------------------------------
+   Bool_t use_TRK = how.Contains("TRK", TString::kIgnoreCase);
+   Bool_t use_CAL = how.Contains("CAL", TString::kIgnoreCase);
+   Bool_t use_TOF = how.Contains("TOF", TString::kIgnoreCase);
+   if( !CAL2 &&  use_CAL) use_CAL = false;
+   if( !TOF &&  use_TOF) use_TOF = false;
+   if( !TRK2 ){
+     //  cout << "SortTracks() : without tracker does not work!!! (not yet)" << endl;
+     return;
+   };
+   //   cout << "use_CAL "<<use_CAL<<" use_TOF "<<use_TOF<<" use_TRK "<<use_TRK <<endl;
+   //--------------------------------------------------
+   // loop over "physical" tracks sorted by the tracker
+   //--------------------------------------------------
+   for(Int_t i=0; i < trk2_obj->TrkLevel2::GetNTracks(); i++){
-         new(sorted[i]) TrkTrack(*ts); //save the track in the sorted array
+     TrkTrack   *ts = 0;
-     };
+     CaloTrkVar *cs = 0;
+     ToFTrkVar  *os = 0;
+     // get tracker tracks
+     TrkTrack   *tp = trk2_obj->TrkLevel2::GetTrack(i); //tracker
+     CaloTrkVar *cp = GetCaloStoredTrack(tp->GetSeqNo());
+     ToFTrkVar  *op = GetToFStoredTrack(tp->GetSeqNo());
+     TrkTrack   *ti = 0; //tracker (image)
+     CaloTrkVar *ci = 0;
+     ToFTrkVar  *oi = 0;
+     //  cout << "trk track n. "<<i << " "<<hex<< tp <<dec<< endl;
+     // if track has an image, check image selection
+     if(tp->HasImage()){
+       ti = trk2_obj->TrkLevel2::GetTrackImage(i);              //tracker (image)
+       ci = GetCaloStoredTrack(ti->GetSeqNo());
+       oi = GetToFStoredTrack(ti->GetSeqNo());
+       //            cout << "its image "<<i << " "<<hex<< ti <<dec<< endl;
+       //assign starting scores
+       Int_t tp_score = 0;  //main track sorted by the tracker
+       Int_t ti_score = 0;  //image track
+       // -----------------------------------------------------------------------------------------
+       // calorimeter check
+       // -----------------------------------------------------------------------------------------
+       // check the Y spatial residual on the first calorimeter plane
+       // (cut on calorimeter variables from Emiliano)
+       if( use_CAL && !calo2_obj ){
+         cout << "void PamLevel2::SortTracks(): howtosort= "<<how<<" but CaloLevel2 not loaded !!!";
+         return;
+       };
+       if( use_CAL && !cp &&  ci )ti_score++;
+       if( use_CAL &&  cp && !ci )tp_score++;
+       if(
+          use_CAL            &&
+ //       calo2_obj->npcfit[1] > 5     &&   //no. of fit planes on Y view
+ //       calo2_obj->varcfit[1] < 1000. &&  //fit variance on Y view
+          cp && ci &&
+          true){
+ //      Float_t resy_p = cp->tbar[0][1] - calo2_obj->cbar[0][1]; if(resy_p < 0)resy_p= - resy_p;
+ //      Float_t resy_i = ci->tbar[0][1] - calo2_obj->cbar[0][1]; if(resy_i < 0)resy_i= - resy_i;
+ //      if(resy_p <= resy_i) tp_score++;
+ //      else                 ti_score++;
+           if( cp->npresh > ci->npresh) tp_score++;
+           if( cp->npresh < ci->npresh) ti_score++;
+           else ;//niente
+         //      cout << "CALO "<<tp_score<<ti_score<<endl;
+       };
+       // -----------------------------------------------------------------------------------------
+       // TOF check
+       // -----------------------------------------------------------------------------------------
+       // check the number of hit pmts along the track
+       // on S12 S21 and S32, where paddles are parallel to Y axis
+       if( use_TOF && !tof_obj ){
+         cout << "void PamLevel2::SortTracks(): howtosort= "<<how<<" but ToFLevel2 not loaded !!!";
+         return;
+       };
+       if( use_TOF && !op &&  oi )ti_score++;
+       if( use_TOF &&  op && !oi )tp_score++;
+       if( use_TOF && op && oi ){
+         //
+         Float_t sen = 0.;
+         for (Int_t ih=0; ih < op->npmtadc; ih++){
+           Int_t pl = tof_obj->GetPlaneIndex( (op->pmtadc).At(ih) );
+           if ( pl == 2 || pl == 3 || pl == 4 || pl == 5 ) sen += (op->dedx).At(ih);
+         };
+         for (Int_t ih=0; ih < oi->npmtadc; ih++){
+           Int_t pl = tof_obj->GetPlaneIndex( (oi->pmtadc).At(ih) );
+           if ( pl == 2 || pl == 3 || pl == 4 || pl == 5 ) sen += (oi->dedx).At(ih);
+         };
+         //
+         if (  sen >= sortthr ){
+           //printf(" IS A NUCLEUS! en = %f \n",sen);
+           //
+           // is a nucleus use a different algorithm
+           //
+           Int_t nz = 6; Float_t zin[6];                                          // << define TOF z-coordinates
+           for(Int_t ip=0; ip<nz; ip++)
+             zin[ip] = tof_obj->ToFLevel2::GetZTOF(tof_obj->ToFLevel2::GetToFPlaneID(ip));     // << read ToF plane z-coordinates
+           Trajectory *tr = new Trajectory(nz,zin);
+           //
+           Int_t nphit_p =0;
+           Int_t nphit_i =0;
+           Float_t enhit_p = 0.;
+           Float_t enhit_i = 0.;
+           //
+           for (Int_t ih=0; ih < op->npmtadc; ih++){
+             Int_t pl = tof_obj->GetPlaneIndex( (op->pmtadc).At(ih) );
+             if(pl == 1 || pl == 2 || pl == 5){
+               nphit_p++;
+               enhit_p += (op->dedx).At(ih);
+             };
+           };
+           //
+           tp->DoTrack2(tr);
+           //
+           if ( fabs(tr->y[0]-oi->ytofpos[0]) < 2. ){
+             for (Int_t ih=0; ih < op->npmtadc; ih++){
+               Int_t pl = tof_obj->GetPlaneIndex( (op->pmtadc).At(ih) );
+               if(pl == 0){
+                 nphit_p++;
+                 enhit_p += (op->dedx).At(ih);
+               };
+             };
+           };
+           if ( fabs(tr->y[3]-oi->ytofpos[1]) < 2. ){
+             for (Int_t ih=0; ih < op->npmtadc; ih++){
+               Int_t pl = tof_obj->GetPlaneIndex( (op->pmtadc).At(ih) );
+               if(pl == 3){
+                 nphit_p++;
+                 enhit_p += (op->dedx).At(ih);
+               };
+             };
+           };
+           if ( fabs(tr->y[4]-oi->ytofpos[2]) < 2. ){
+             for (Int_t ih=0; ih < op->npmtadc; ih++){
+               Int_t pl = tof_obj->GetPlaneIndex( (op->pmtadc).At(ih) );
+               if(pl == 4){
+                 nphit_p++;
+                 enhit_p += (op->dedx).At(ih);
+               };
+             };
+           };
+           for (Int_t ih=0; ih < oi->npmtadc; ih++){
+             Int_t pl = tof_obj->GetPlaneIndex( (oi->pmtadc).At(ih) );
+             if(pl == 1 || pl == 2 || pl == 5){
+               nphit_i++;
+               enhit_i += (op->dedx).At(ih);
+             };
+           };
+           //
+           ti->DoTrack2(tr);
+           //
+           if ( fabs(tr->y[0]-oi->ytofpos[0]) < 2. ){
+             for (Int_t ih=0; ih < oi->npmtadc; ih++){
+               Int_t pl = tof_obj->GetPlaneIndex( (oi->pmtadc).At(ih) );
+               if(pl == 0){
+                 nphit_i++;
+                 enhit_i += (op->dedx).At(ih);
+               };
+             };
+           };
+           if ( fabs(tr->y[3]-oi->ytofpos[1]) < 2. ){
+             for (Int_t ih=0; ih < oi->npmtadc; ih++){
+               Int_t pl = tof_obj->GetPlaneIndex( (oi->pmtadc).At(ih) );
+               if(pl == 3){
+                 nphit_i++;
+                 enhit_i += (op->dedx).At(ih);
+               };
+             };
+           };
+           if ( fabs(tr->y[4]-oi->ytofpos[2]) < 2. ){
+             for (Int_t ih=0; ih < oi->npmtadc; ih++){
+               Int_t pl = tof_obj->GetPlaneIndex( (oi->pmtadc).At(ih) );
+               if(pl == 4){
+                 nphit_i++;
+                 enhit_i += (op->dedx).At(ih);
+               };
+             };
+           };
+           if(
+              use_TOF            &&
+              (nphit_p+nphit_i) !=0 &&
+              true){
+             //      printf(" seqno %i nphit_p %i nphit_i %i enhit_p %f enhit_i %f \n",trk2_obj->TrkLevel2::GetSeqNo(i),nphit_p,nphit_i,enhit_p,enhit_i);
+             //      printf(" score p %i score i %i \n",tp_score,ti_score);
+             //            if( enhit_p > enhit_i ) tp_score++;
+             //            if( nphit_p >= nphit_i && enhit_p > enhit_i ) tp_score++;
+             if ( nphit_p > nphit_i ) tp_score++;
+             if ( nphit_p < nphit_i ) ti_score++;
+             if ( nphit_p == nphit_i ){
+               if ( enhit_p > enhit_i ) tp_score++;
+               else ti_score++;
+             };
+             //      printf(" dopo score p %i score i %i \n",tp_score,ti_score);
+           };
+           delete tr;
+           //
+         } else {
+           //
+           // NOT a NUCLEUS
+           //
+           //printf(" NOT a NUCLEUS! en = %f \n",sen);
+           Int_t nphit_p =0;
+           Int_t nphit_i =0;
+           /*                            cout << "track: npmtadc "<< op->npmtadc << endl;
+             cout << "track: npmttdc "<< op->npmttdc << endl;
+             cout << "image: npmtadc "<< oi->npmtadc << endl;
+             cout << "image: npmttdc "<< oi->npmttdc << endl;*/
+ //        for (Int_t ih=0; ih < op->npmtadc; ih++){
+ //          Int_t pl = tof_obj->GetPlaneIndex( (op->pmtadc).At(ih) );
+ //          if(pl == 1 || pl == 2 || pl == 5)nphit_p++;
+ //        };
+ //        for (Int_t ih=0; ih < oi->npmtadc; ih++){
+ //          Int_t pl = tof_obj->GetPlaneIndex( (oi->pmtadc).At(ih) );
+ //          if(pl == 1 || pl == 2 || pl == 5)nphit_i++;
+ //        };
+           // --- modified to count tdc signals (more efficient?)
+           // --- and to implement check on tdcflag
+           for (Int_t ih=0; ih < op->npmttdc; ih++){
+             //      Int_t pl = tof_obj->GetPlaneIndex( (op->pmttdc).At(ih) );
+ //          if( (op->tdcflag).At(ih)==0 && (pl == 1 || pl == 2 || pl == 5) )nphit_p++;
+             if( (op->tdcflag).At(ih)==0 )nphit_p++;
+           };
+           for (Int_t ih=0; ih < oi->npmttdc; ih++){
+             //      Int_t pl = tof_obj->GetPlaneIndex( (oi->pmttdc).At(ih) );
+ //          if( (oi->tdcflag).At(ih)==0 && (pl == 1 || pl == 2 || pl == 5) )nphit_i++;
+             if( (oi->tdcflag).At(ih)==0 )nphit_i++;
+           };
+           if(
+              (nphit_p+nphit_i) !=0 &&
+              true){
+             if     ( nphit_p > nphit_i) tp_score++;
+             else if( nphit_p < nphit_i) ti_score++;
+             else ;//niente
+           };
+         };
+         //      cout << "TOF "<<tp_score<<ti_score<<endl;
+       };
+ //      if(tp_score == ti_score) use_TRK = true;
-     return aa;
+       // -----------------------------------------------------------------------------------------
+       // tracker check
+       // -----------------------------------------------------------------------------------------
+       // chi**2 difference is not always large enough to distinguish among
+       // the real track and its image.
+       // Tracker check will be applied always when calorimeter and tof information is ambiguous.
+       // *** MODIFIED ON AUGUST 2007 ***
+       if(use_TRK){
+ //      if(      tp->chi2 > 0 && tp->chi2 < ti->chi2 ) tp_score++ ;
+ //      else if( ti->chi2 > 0 && ti->chi2 < tp->chi2 ) ti_score++ ;
+           // CHECK 1 : number of points along X
+           if ( tp->GetNX() >= ti->GetNX() )tp_score++ ;
+           if ( tp->GetNX() <= ti->GetNX() )ti_score++ ;
+           // CHECK 2 : number of points along Y
+           if ( tp->GetNY() >= ti->GetNY() )tp_score++ ;
+           if ( tp->GetNY() <= ti->GetNY() )ti_score++ ;
+           // CHECK 3 : chi**2 along X
+ //        if(      tp->GetChi2X() > 0 && (tp->GetChi2X() < ti->GetChi2X() || ti->GetChi2X() <=0) ) tp_score++ ;
+ //        if(      ti->GetChi2X() > 0 && (ti->GetChi2X() < tp->GetChi2X() || tp->GetChi2X() <=0) ) ti_score++ ;
+           // CHECK 4 : chi**2 along Y
+ //        if(      tp->GetChi2Y() > 0 && (tp->GetChi2Y() < ti->GetChi2Y() || ti->GetChi2Y() <=0) ) tp_score++ ;
+ //        if(      ti->GetChi2Y() > 0 && (ti->GetChi2Y() < tp->GetChi2Y() || tp->GetChi2Y() <=0) ) ti_score++ ;
+           // CHECK 5 : total chi**2
+ //        if(      tp->chi2 > 0 && (tp->chi2 < ti->chi2 || ti->chi2 <=0) ) tp_score++ ;
+ //        if(      ti->chi2 > 0 && (ti->chi2 < tp->chi2 || tp->chi2 <=0) ) ti_score++ ;
+         //      cout << "TRK "<<tp_score<<ti_score<<endl;
+       };
+       // *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
+       // the winner is....
+       // *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
+       if      (tp_score > ti_score) {
+       }else if (tp_score < ti_score) {
+         ts = ti;//its image!!
+         cs = ci;
+         os = oi;
+         ti = tp;//its image!!
+         ci = cp;
+         oi = op;
+         tp = ts;//its image!!
+         cp = cs;
+         op = os;
+       }else {
+ //      cout << "Warning - track image ambiguity not solved" << endl;
+       };
+     }else{
+       //            ts = tp;
+       //            cs = cp;
+       //            os = op;
+     };
+     //  cout <<" SortTracks() "<<i<<" -- "<<ts<<endl;
+     //  sorted_tracks->Add(ts);//save the track in the sorted array
+     //  sorted_tracks.Add(ts);//save the track in the sorted array
+     //  sorted_tracks.Add(tp);//save the track in the sorted array
+     //  cout << "SortTracks:: sorted_tracks->Add(it) "<<i<<" "<<ts<<endl;
+     //  cout<<"o "<<tp<<endl;
+     //  cout<<"o "<<cp<<endl;
+     //  cout<<"o "<<op<<endl;
+     new(ttsorted[i]) PamTrack(tp,cp,op);
+     new(ttimage[i])  PamTrack(ti,ci,oi);
+   };
+   if( tsorted->GetEntries() != trk2_obj->GetNTracks() ){
+     cout << "void PamLevel2::SortTracks(): tsorted->GetEntries() "<<tsorted->GetEntries()<<" != trk2_obj->GetNTracks() = "<<trk2_obj->GetNTracks() <<endl;
+     tsorted->Delete(); tsorted=0;
+     timage->Delete(); timage=0;
+   }
+   //Restore Object count
+   //To save space in the table keeping track of all referenced objects
+   //We reset the object count to what it was at the beginning of the event.
+   TProcessID::SetObjectCount(ObjectNumber);
  };
  //--------------------------------------
  //
  //
  //--------------------------------------
  /**
+  * This method overrides TrkLevel2::GetTracks(), where sorting is done by decreasing number of fit points and increasing chi^2.
+  * PamLevel2::GetTracks() keeps the same track order given by TrkLevel2::GetTracks(), but checks image selection by using calorimeter and ToF tracking information.
+  */
+ // TRefArray *PamLevel2::GetTracks(){
+ // //  *-*-*-*-*-*-*-*-*-*-*-*-*
+ //     SortTracks("+CAL+TOF");
+ // //  *-*-*-*-*-*-*-*-*-*-*-*-*
+ // //   return  sorted_tracks;
+ //     return &sorted_tracks;
+ //  };
+ TClonesArray *PamLevel2::GetTracks(){
+ //  *-*-*-*-*-*-*-*-*-*-*-*-*
+     SortTracks();
+ //  *-*-*-*-*-*-*-*-*-*-*-*-*
+     return tsorted;
+  };
+ //--------------------------------------
+  //
+  //
+ //--------------------------------------
+ /**
   * Retrieves the it-th Pamela "physical" track.
   * It override TrkLevel2::GetTrack(int it).
   * @param it Track number, ranging from 0 to GetNTracks().
   */
  PamTrack *PamLevel2::GetTrack(int it){
-     TClonesArray *aa = this->GetTracks();
+ //    if(!trk2_obj) return 0;
-     TClonesArray &sorted = *aa;
+ // //  *-*-*-*+-*-*-*-*-*-*-*-*-*
+ //     SortTracks("+CAL+TOF");
+ // //  *-*-*-*-*-*-*-*-*-*-*-*-*
+ // //    if(!sorted_tracks)return 0;
+ //     if(sorted_tracks.IsEmpty())return 0;
+ //     PamTrack *track = 0;
+ //     if( it >=0 && it < trk2_obj->TrkLevel2::GetNTracks() && it<sorted_tracks.GetEntriesFast() ){
+ //      TrkTrack   *t = (TrkTrack*)sorted_tracks.At(it);
+ //      track = GetPamTrackAlong(t);
+ //     }else{
+ //      cout << "PamLevel2::GetTrack(int) : tracker track SeqNo "<< it <<" does not exist (GetNTracks() = "<<trk2_obj->TrkLevel2::GetNTracks()<<")"<<endl;
+ //     };
+ //     return track;
-     TrkTrack   *t = 0;
+ //    cout << "PamLevel2::GetTrack(int it) "<<endl;
-     CaloTrkVar *c = 0;
+ //  *-*-*-*-*-*-*-*-*-*-*-*-*
-     ToFTrkVar  *o = 0;
+     SortTracks();
+ //  *-*-*-*-*-*-*-*-*-*-*-*-*
+     if(!tsorted)return 0;
+     if(!tsorted->GetEntries())return 0;
-     if( it >=0 && it < TrkLevel2::GetNTracks() ){
+     PamTrack *track = 0;
-         t = (TrkTrack*)sorted[it];
-         c = CaloLevel2::GetCaloTrkVar(t->GetSeqNo());
+     if( it >=0 && it < trk2_obj->TrkLevel2::GetNTracks()){
-         o = ToFLevel2::GetToFTrkVar(t->GetSeqNo());
+ //      TrkTrack   *t = (TrkTrack*)sorted_tracks.At(it);
+ //      track = GetPamTrackAlong(t);
+         TClonesArray &t = *(tsorted);
+         track = (PamTrack*)t[it];
+     }else{
+         cout << "PamLevel2::GetTrack(int) : tracker track SeqNo "<< it <<" does not exist (GetNTracks() = "<<trk2_obj->TrkLevel2::GetNTracks()<<")"<<endl;
      };
-     // hence create a "PamTrack" object
-     PamTrack *track = 0;
-     if(t && c && o)track = new PamTrack(t,c,o);
      return track;
  };
  //--------------------------------------
  //
  //
  //--------------------------------------
  /**
-  * Retrieves (if present) the image of the it-th Pamela "physical" track, sorted by the method PamLevel2::GetTracks().
+  * Retrieves (if present) the image of the it-th Pamela "physical" track, sorted by the method PamLevel2::SortTracks().
   * @param it Track number, ranging from 0 to GetNTracks().
   */
  PamTrack *PamLevel2::GetTrackImage(int it){
-     TClonesArray *aa = this->GetTracks();
+ //     if(!trk2_obj) return 0;
-     TClonesArray &sorted = *aa;
+ // //  *-*-*-*-*-*-*-*-*-*-*-*-*
+ //     SortTracks("+CAL+TOF");
+ // //  *-*-*-*-*-*-*-*-*-*-*-*-*
+ // //    if(!sorted_tracks)return 0;
+ //     if(sorted_tracks.IsEmpty())return 0;
+ //     PamTrack *image = 0;
+ //     if( it >=0 && it < trk2_obj->TrkLevel2::GetNTracks() ){
+ //      TrkTrack *temp = (TrkTrack*)sorted_tracks.At(it);
+ //      if( temp->HasImage() ){
+ //          TrkTrack   *t = trk2_obj->TrkLevel2::GetStoredTrack(temp->GetImageSeqNo());
+ //          image = GetPamTrackAlong(t);
+ //      }else{
+ //          cout <<"PamLevel2::GetTrackImage(int) : Track SeqNo "<<it<<" does not have image"<<endl;
+ //      };
+ //     }else{
+ //      cout << "PamLevel2::GetTrackImage(int) : Tracker track SeqNo "<< it <<" does not exist (GetNTracks() = "<<trk2_obj->TrkLevel2::GetNTracks()<<")"<<endl;
+ //     };
+ //     return image;
-     TrkTrack   *t = 0;
-     CaloTrkVar *c = 0;
-     ToFTrkVar  *o = 0;
-     if( it >=0 && it < TrkLevel2::GetNTracks() ){
+ //  *-*-*-*-*-*-*-*-*-*-*-*-*
-         TrkTrack *temp = (TrkTrack*)sorted[it];
+     SortTracks();
-         if( temp->HasImage() ){
+ //  *-*-*-*-*-*-*-*-*-*-*-*-*
-             t = TrkLevel2::GetStoredTrack(temp->GetImageSeqNo());
+     if(!timage)return 0;
-             c = CaloLevel2::GetCaloTrkVar(temp->GetImageSeqNo());
+     if(!timage->GetEntries())return 0;
-             o = ToFLevel2::GetToFTrkVar(temp->GetImageSeqNo());
+     PamTrack *image = 0;
+     if( it >=0 && it < trk2_obj->TrkLevel2::GetNTracks() ){
+         TClonesArray &t = *(tsorted);
+         PamTrack *temp = (PamTrack*)t[it];
+         if( temp->GetTrkTrack()->HasImage() ){
+             TClonesArray &t = *(timage);
+             image = (PamTrack*)t[it];
+         }else{
+ //          cout <<"PamLevel2::GetTrackImage(int) : Track SeqNo "<<it<<" does not have image"<<endl;
          };
+     }else{
+         cout << "PamLevel2::GetTrackImage(int) : Tracker track SeqNo "<< it <<" does not exist (GetNTracks() = "<<trk2_obj->TrkLevel2::GetNTracks()<<")"<<endl;
      };
-     // hence create a "PamTrack" object
-     PamTrack *image = 0;
-     if(t && c && o)image = new PamTrack(t,c,o);
      return image;
  }
  //--------------------------------------
-Line 209 
 PamTrack *PamLevel2::GetTrackImage(int i
+Line 1160 
 PamTrack *PamLevel2::GetTrackImage(int i
  //
  //--------------------------------------
  /**
-  * Get the Pamela detector trees and make them friends.
+  * Get the Pamela detector trees in a single file and make them friends.
+  * @param f TFile pointer
+  * @param detlist String to select trees to be included
+  * @return Pointer to a TTree
   */
- TTree *PamLevel2::LoadPamTrees(TFile *f){
+ TTree *PamLevel2::GetPamTree(TFile *f, TString detlist ){
-     TTree *Tout =0;
+ //     if( !detlist.IsNull() ) SetWhichTrees(detlist);
+ //     else                    GetWhichTrees(f);
-     // Tracker
+   if ( pam_tree ){
+     printf("WARNING: TTree *PamLevel2::GetPamTree(TFile *fl, TString detlist) -- pam_tree already exists!\n ");
+     return pam_tree;
+   };
+   //
+     cout << "TTree *PamLevel2::GetPamTree(TFile *f, TString detlist ) -- obsolte "<<endl;
+     SetWhichTrees(detlist);
+     TTree *Trout =0;
+     TString fname = f->GetName();
+     if(!CheckLevel2File(fname))return NULL;
+ //    UInt_t *found=0;
+     cout<< "GetPamTree(TFile*,TString): detector list --> ";
+     if(TRK1)cout<<"TRK1 ";
+     if(TRK2)cout<<"TRK2 ";
+     if(TRKh)cout<<"TRKH ";
+     if(CAL1)cout<<"CAL1 ";
+     if(CAL2)cout<<"CAL2 ";
+     if(TOF)cout<<"TOF ";
+     if(TRG)cout<<"TRG ";
+     if(AC)cout<<"AC ";
+     if(ND)cout<<"ND ";
+     if(S4)cout<<"S4 ";
+     if(ORB)cout<<"ORB ";
+     cout << endl;
+     if(SELLI)cout<<">>> Found selection-list <<<"<<endl;
+     f->cd();
+ // Tracker
      TTree *T = (TTree*)f->Get("Tracker");
-     if(T) {
+     if(T && (TRK2||TRK1||TRKh)) {
-         T->SetBranchAddress("TrkLevel2", GetPointerToTrk());
+         if(TRK2)T->SetBranchAddress("TrkLevel2", GetPointerTo("TrkLevel2"));
-         cout << "Tracker      : set branch address TrkLevel2"<<endl;
+ //      else    T->SetBranchStatus("TrkLevel2",0,found);
-         if(!Tout)Tout=T;
+         if(TRK2)cout << "Tracker      : set branch address TrkLevel2"<<endl;
+         if(TRK1)T->SetBranchAddress("TrkLevel1", GetPointerTo("TrkLevel1"));
+ //      else    T->SetBranchStatus("TrkLevel1",0,found);
+         if(TRK1)cout << "Tracker      : set branch address TrkLevel1"<<endl;
+         if(TRKh)T->SetBranchAddress("TrkHough", GetPointerTo("TrkHough"));
+ //      else    T->SetBranchStatus("TrkHough",0,found);
+         if(TRKh)cout << "Tracker      : set branch address TrkHough"<<endl;
+         if(!Trout)Trout=T;
+         else Trout->AddFriend(T);
      }else{
          cout << "Tracker      : missing tree"<<endl;
      };
      // Calorimeter
      TTree *C = (TTree*)f->Get("Calorimeter");
-     if(C) {
+     if(C && (CAL2||CAL1)) {
-         C->SetBranchAddress("CaloLevel2", GetPointerToCalo());
+         if(CAL2)C->SetBranchAddress("CaloLevel2", GetPointerTo("CaloLevel2"));
-         cout << "Calorimeter  : set branch address CaloLevel2"<<endl;
+ //      else    C->SetBranchStatus("CaloLevel2",0,found);
-         if(!Tout)Tout=C;
+         if(CAL2)cout << "Calorimeter  : set branch address CaloLevel2"<<endl;
-         else Tout->AddFriend(C);
+         if(CAL1)C->SetBranchAddress("CaloLevel1", GetPointerTo("CaloLevel1"));
+ //      else    C->SetBranchStatus("CaloLevel1",0,found);
+         if(CAL1)cout << "Calorimeter  : set branch address CaloLevel1"<<endl;
+         if(!Trout)Trout=C;
+         else Trout->AddFriend(C);
      }else{
          cout << "Calorimeter  : missing tree"<<endl;
      };
      // ToF
      TTree *O = (TTree*)f->Get("ToF");
-     if(O) {
+     if(O && TOF) {
-         O->SetBranchAddress("ToFLevel2", GetPointerToToF());
+         O->SetBranchAddress("ToFLevel2", GetPointerTo("ToFLevel2"));
          cout << "ToF          : set branch address ToFLevel2"<<endl;
-         if(!Tout)Tout=O;
+         if(!Trout)Trout=O;
-         else Tout->AddFriend(O);
+         else Trout->AddFriend(O);
      }else{
          cout << "ToF         : missing tree"<<endl;
      };
      // Trigger
      TTree *R = (TTree*)f->Get("Trigger");
-     if(R) {
+     if(R && TRG) {
-         R->SetBranchAddress("TrigLevel2", GetPointerToTrig());
+         R->SetBranchAddress("TrigLevel2", GetPointerTo("TrigLevel2"));
          cout << "Trigger      : set branch address TrigLevel2"<<endl;
-         if(!Tout)Tout=O;
+         if(!Trout)Trout=R;
-         else Tout->AddFriend(R);
+         else Trout->AddFriend(R);
      }else{
          cout << "Trigger      : missing tree"<<endl;
      };
      // S4
      TTree *S = (TTree*)f->Get("S4");
-     if(S) {
+     if(S && S4) {
-         S->SetBranchAddress("S4Level2", GetPointerToS4());
+         S->SetBranchAddress("S4Level2", GetPointerTo("S4Level2"));
          cout << "S4           : set branch address S4Level2"<<endl;
-         if(!Tout)Tout=O;
+         if(!Trout)Trout=S;
-         else Tout->AddFriend(S);
+         else Trout->AddFriend(S);
      }else{
          cout << "S4           : missing tree"<<endl;
      };
      // Neutron Detector
      TTree *N = (TTree*)f->Get("NeutronD");
-     if(N) {
+     if(N && ND) {
-         N->SetBranchAddress("NDLevel2", GetPointerToND());
+         N->SetBranchAddress("NDLevel2", GetPointerTo("NDLevel2"));
          cout << "NeutronD     : set branch address NDLevel2"<<endl;
-         if(!Tout)Tout=O;
+         if(!Trout)Trout=N;
-         else Tout->AddFriend(N);
+         else Trout->AddFriend(N);
      }else{
          cout << "NeutronD     : missing tree"<<endl;
      };
      // Anticounters
      TTree *A = (TTree*)f->Get("Anticounter");
-     if(A) {
+     if(A && AC) {
-         A->SetBranchAddress("AcLevel2", GetPointerToAc());
+         A->SetBranchAddress("AcLevel2", GetPointerTo("AcLevel2"));
          cout << "Anticounter  : set branch address AcLevel2"<<endl;
-         if(!Tout)Tout=O;
+         if(!Trout)Trout=A;
-         else Tout->AddFriend(A);
+         else Trout->AddFriend(A);
      }else{
          cout << "Anticounter  : missing tree"<<endl;
      };
+     // Orbital Info
+     TTree *B = (TTree*)f->Get("OrbitalInfo");
+     if(B && ORB) {
+         B->SetBranchAddress("OrbitalInfo", GetPointerTo("OrbitalInfo"));
+         cout << "OrbitalInfo  : set branch address OrbitalInfo"<<endl;
+         if(!Trout)Trout=B;
+         else Trout->AddFriend(B);
+     }else{
+         cout << "OrbitalInfo  : missing tree"<<endl;
+     };
+     TTree *L = (TTree*)f->Get("SelectionList");
+     if(L && SELLI==1) {
+ //      L->SetBranchAddress("RunEntry",&irun);
+ //      cout << "SelectionList: set branch address RunEntry"<<endl;
+ //      L->SetBranchAddress("EventEntry",&irunentry);
+ //      cout << "SelectionList: set branch address EventEntry"<<endl;
+ //      if(!Trout)Trout=O;
+ //      else Trout->AddFriend("SelectionList");
+         cout << " TTree *PamLevel2::GetPamTree(TFile, TString) >>> SelectionList not implemente!!!!"<<endl;
+         sel_tree = 0;
+     }else{
+         cout << "SelectionList  : missing tree"<<endl;
+     };
+     cout<<endl<<" Number of entries: "<<Trout->GetEntries()<<endl<<endl;
+     pam_tree = (TChain*)Trout;
+     return Trout;
+ }
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Get list of Level2 files.
+  * @param ddir Level2 data directory.
+  * @param flisttxt Name of txt file containing file list.
+  * @return Pointer to a TList of TSystemFiles
+  * If no input file list is given , all the Level2 files inside the directory are processed.
+  */
+ TList*  PamLevel2::GetListOfLevel2Files(TString ddir, TString flisttxt = ""){
+     TString wdir = gSystem->WorkingDirectory();
+     //    if(ddir=="")ddir = wdir;
+ //      TSystemDirectory *datadir = new TSystemDirectory(gSystem->BaseName(ddir),ddir);
+     if ( ddir != ""){
+       cout << "Level2 data directory : "<<  ddir << endl;
+     } else {
+       cout << "Level2 data directory not given as input: trying to evaluate from list or taking working directory " << endl;
+     };
+     TList *contents  = new TList; // create output list
+     contents->SetOwner();
+ //    char *fullpath;
+ //    const char *fullpath;
+     // if no input file list is given:
+     if ( flisttxt != "" ){
+ //      if( !gSystem->IsFileInIncludePath(flisttxt,&fullpath) ){
+ //      if( !(fullpath = gSystem->FindFile("./",flisttxt)) ){
+ //          cout <<"File "<<flisttxt<<" not found"<<endl;
+ //          return 0;
+ //      }
+ //      flisttxt = fullpath;
+       if ( !flisttxt.EndsWith(".root") ){
+         flisttxt = gSystem->ConcatFileName(gSystem->DirName(flisttxt),gSystem->BaseName(flisttxt));
+         if( !gSystem->ChangeDirectory(ddir) ){
+             cout << "Cannot change directory : "<<ddir<<endl;
+             return 0;
+         }
+         cout <<"Input file list : " << flisttxt <<endl;
+         ifstream in;
+         in.open(flisttxt, ios::in); //open input file list
+         if(!in.good()){
+             cout <<" ERROR opening the file "<<endl;
+             gSystem->ChangeDirectory(wdir); // back to the working directory
+             return 0;
+         }
+         int line=0;
+         while (1) {
+             TString file;
+             in >> file;
+             if (!in.good()) break;
+             line++;
+ //          cout <<"(1) " << file << endl;
+             if(file.IsNull()){
+                 cout << "-- list interrupted at line "<<line <<endl;
+                 break;
+             }
+             if(file.Contains("#"))file = file(0,file.First("#"));
+ //          cout <<"(2) " << file << endl;
+ //          if( gSystem->IsFileInIncludePath(file,&fullpath) ){
+ //          if( (fullpath = gSystem->FindFile(ddir,file)) ){
+             if( file.EndsWith(".root") ){
+               TString filedir;
+               if (ddir != ""){
+                 filedir = ddir; // take the input dir
+               } else {
+                 gSystem->ChangeDirectory(wdir); // back to the working directory
+                 filedir = gSystem->DirName(file); // this will take the path if exist in the list otherwise it will return automatically the working dir
+               };
+                 char *fullpath = gSystem->ConcatFileName(gSystem->DirName(filedir),gSystem->BaseName(file));
+                 contents->Add(new TSystemFile(fullpath,gSystem->DirName(fullpath)));// add file to the list
+                 delete fullpath;
+             }
+ //          }else{
+ //              if(file.Data()!="")cout << "File: "<<file<<" ---> missing "<< endl;
+ //          };
+         };
+         in.close();
+       } else {
+           if(flisttxt.Contains("#"))flisttxt = flisttxt(0,flisttxt.First("#"));
+           char *fullpath = gSystem->ConcatFileName(gSystem->DirName(flisttxt),gSystem->BaseName(flisttxt));
+           contents->Add(new TSystemFile(fullpath,gSystem->DirName(fullpath)));// add file to the list
+           delete fullpath;
+       };
+     }else{
+         cout << "No input file list given."<<endl;
+         cout << "Check for existing root files."<<endl;
+ //              cout << "Warking directory: "<< gSystem->WorkingDirectory()<< endl;
+         if ( ddir == "" ){
+           ddir = wdir;
+           cout << "Level2 data directory : "<<  ddir << endl;
+         };
+         TSystemDirectory *datadir = new TSystemDirectory(gSystem->BaseName(ddir),ddir);
+         TList *temp = datadir->GetListOfFiles();
+ //              temp->Print();
+ //              cout << "*************************************" << endl;
+         TIter next(temp);
+         TSystemFile *questo = 0;
+         while ( (questo = (TSystemFile*) next()) ) {
+             TString name =  questo-> GetName();
+             if( name.EndsWith(".root") ){
+ //              const char *fullpath = gSystem->FindFile(ddir,name);
+ //              char *fullpath;
+ //              gSystem->IsFileInIncludePath(name,&fullpath);
+                 char *fullpath = gSystem->ConcatFileName(gSystem->DirName(ddir),gSystem->BaseName(name));
+                 contents->Add(new TSystemFile(fullpath,gSystem->DirName(fullpath)));
+                 delete fullpath;
+             };
+         }
+         delete temp;
+         delete datadir;
+     };
+     gSystem->ChangeDirectory(wdir); // back to the working directory
+ //      cout << endl << "Selected files:" << endl;
+ //      contents->Print();
+     cout << contents->GetEntries()<<" files \n";
+ //      cout << endl;
+ //      cout << "Working directory: "<< gSystem->WorkingDirectory()<< endl;
+     return contents;
+ };
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Get the Pamela detector chains from a list of files and make them friends.
+  * @param fl Pointer to a TList of TSystemFiles
+  * @param detlist String to select trees to be included
+  * @return Pointer to a TChain
+  */
+ TChain *PamLevel2::GetPamTree(TList *fl, TString detlist ){
+   //
+   //
+   //
+   if ( pam_tree ){
+     printf("WARNING: TChain *PamLevel2::GetPamTree(TList *fl, TString detlist) -- pam_tree already exists!\n ");
+     return pam_tree;
+   };
+   //
+     TChain *Trout =0;
+ //    if( !detlist.IsNull() )SetWhichTrees(detlist);
+     SetWhichTrees(detlist);
-     return Tout;
+     cout<< "GetPamTree(TList*,TString): input detector list --> ";
+     if(TRK1)cout<<"TRK1 ";
+     if(TRK2)cout<<"TRK2 ";
+     if(TRKh)cout<<"TRKH ";
+     if(CAL1)cout<<"CAL1 ";
+     if(CAL2)cout<<"CAL2 ";
+     if(TOF)cout<<"TOF ";
+     if(TRG)cout<<"TRG ";
+     if(AC)cout<<"AC ";
+     if(ND)cout<<"ND ";
+     if(S4)cout<<"S4 ";
+     if(ORB)cout<<"ORB ";
+     cout << endl;
+      TChain *T = 0;
+      TChain *C = 0;
+      TChain *O = 0;
+      TChain *R = 0;
+      TChain *S = 0;
+      TChain *N = 0;
+      TChain *A = 0;
+      TChain *B = 0;
+      TChain *L = 0;
+     if(TRK2||TRK1||TRKh) T = new TChain("Tracker");
+     if(CAL2||CAL1)       C = new TChain("Calorimeter");
+     if(TOF)              O = new TChain("ToF");
+     if(TRG)              R = new TChain("Trigger");
+     if(S4)               S = new TChain("S4");
+     if(ND)               N = new TChain("NeutronD");
+     if(AC)               A = new TChain("Anticounter");
+     if(ORB)              B = new TChain("OrbitalInfo");
+      L = new TChain("SelectionList");
+     // loop over files and create chains
+     TIter next(fl);
+     TSystemFile *questo = 0;
+     while ( (questo = (TSystemFile*) next()) ) {
+         TString name =  questo->GetName();
+         cout << "File: "<< name << endl;
+         if( CheckLevel2File(name) ){
+             if(TRK2||TRK1||TRKh) T->Add(name);
+             if(CAL1||CAL2)       C->Add(name);
+             if(TOF)              O->Add(name);
+             if(TRG)              R->Add(name);
+             if(S4)               S->Add(name);
+             if(ND)               N->Add(name);
+             if(AC)               A->Add(name);
+             if(ORB)              B->Add(name);
+             if(SELLI==1)         L->Add(name);
+         };
+     };
+     cout << "done chain \n";
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+ //    UInt_t *found=0;
+ // Tracker
+     if(T && (TRK2||TRK1||TRKh)) {
+         if(TRK2)T->SetBranchAddress("TrkLevel2", GetPointerTo("TrkLevel2"));
+ //      else    T->SetBranchStatus("TrkLevel2",0,found);
+         if(TRK2)cout << "Tracker      : set branch address TrkLevel2"<<endl;
+         if(TRK1)T->SetBranchAddress("TrkLevel1", GetPointerTo("TrkLevel1"));
+ //      else    T->SetBranchStatus("TrkLevel1",0,found);
+         if(TRK1)cout << "Tracker      : set branch address TrkLevel1"<<endl;
+         if(TRKh)T->SetBranchAddress("TrkHough", GetPointerTo("TrkHough"));
+ //      else    T->SetBranchStatus("TrkHough",0,found);
+         if(TRKh)cout << "Tracker      : set branch address TrkHough"<<endl;
+         if(!Trout)Trout=T;
+         else Trout->AddFriend("Tracker");
+     }else{
+         cout << "Tracker      : missing tree"<<endl;
+     };
+     // Calorimeter
+     if(C && (CAL2||CAL1)) {
+         if(CAL2)C->SetBranchAddress("CaloLevel2", GetPointerTo("CaloLevel2"));
+ //      else    C->SetBranchStatus("CaloLevel2",0,found);
+         if(CAL2)cout << "Calorimeter  : set branch address CaloLevel2"<<endl;
+         if(CAL1)C->SetBranchAddress("CaloLevel1", GetPointerTo("CaloLevel1"));
+ //      else    C->SetBranchStatus("CaloLevel1",0,found);
+         if(CAL1)cout << "Calorimeter  : set branch address CaloLevel1"<<endl;
+         if(!Trout)Trout=C;
+         else Trout->AddFriend("Calorimeter");
+     }else{
+         cout << "Calorimeter  : missing tree"<<endl;
+     };
+     // ToF
+     if(O && TOF) {
+         O->SetBranchAddress("ToFLevel2", GetPointerTo("ToFLevel2"));
+         cout << "ToF          : set branch address ToFLevel2"<<endl;
+         if(!Trout)Trout=O;
+         else Trout->AddFriend("ToF");
+     }else{
+         cout << "ToF         : missing tree"<<endl;
+     };
+     // Trigger
+     if(R && TRG) {
+         R->SetBranchAddress("TrigLevel2", GetPointerTo("TrigLevel2"));
+         cout << "Trigger      : set branch address TrigLevel2"<<endl;
+         if(!Trout)Trout=O;
+         else Trout->AddFriend("Trigger");
+     }else{
+         cout << "Trigger      : missing tree"<<endl;
+     };
+     // S4
+     if(S && S4) {
+         S->SetBranchAddress("S4Level2", GetPointerTo("S4Level2"));
+         cout << "S4           : set branch address S4Level2"<<endl;
+         if(!Trout)Trout=O;
+         else Trout->AddFriend("S4");
+     }else{
+         cout << "S4           : missing tree"<<endl;
+     };
+     // Neutron Detector
+     if(N && ND) {
+         N->SetBranchAddress("NDLevel2", GetPointerTo("NDLevel2"));
+         cout << "NeutronD     : set branch address NDLevel2"<<endl;
+         if(!Trout)Trout=O;
+         else Trout->AddFriend("NeutronD");
+     }else{
+         cout << "NeutronD     : missing tree"<<endl;
+     };
+     // Anticounters
+     if(A && AC) {
+         A->SetBranchAddress("AcLevel2", GetPointerTo("AcLevel2"));
+         cout << "Anticounter  : set branch address AcLevel2"<<endl;
+         if(!Trout)Trout=O;
+         else Trout->AddFriend("Anticounter");
+     }else{
+         cout << "Anticounter  : missing tree"<<endl;
+     };
+     // Orbital Info
+     if(B && ORB) {
+         B->SetBranchAddress("OrbitalInfo", GetPointerTo("OrbitalInfo"));
+         cout << "OrbitalInfo  : set branch address OrbitalInfo"<<endl;
+         if(!Trout)Trout=O;
+         else Trout->AddFriend("OrbitalInfo");
+     }else{
+         cout << "OrbitalInfo  : missing tree"<<endl;
+     };
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+     // Selection List
+     if(L && SELLI==1) {
+         cout<<">>> Found selection-list <<<"<<endl;
+         L->SetBranchAddress("RunEntry",&irun);
+         cout << "SelectionList: set branch address RunEntry"<<endl;
+         L->SetBranchAddress("EventEntry",&irunentry);
+         cout << "SelectionList: set branch address EventEntry"<<endl;
+         sel_tree = L;
+ //      if(!Trout)Trout=O;
+ //      else Trout->AddFriend("SelectionList");
+         cout << "----------------------------------------------------" <<endl;
+     }else{
+ //      cout << "SelectionList  : missing tree"<<endl;
+         if(L)L->Delete();
+     };
+ //    cout<<endl<<" Number of entries: "<<Trout->GetEntries()<<endl<<endl;
+     pam_tree = Trout;
+     return Trout;
+ }
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Set branch addresses for Pamela friend trees
+  */
+ void PamLevel2::SetBranchAddress(TTree *t){
+     TRK2    = TRK2 & t->GetBranchStatus("TrkLevel2");
+     TRK1    = TRK1 & t->GetBranchStatus("TrkLevel1");
+     TRKh    = TRKh & t->GetBranchStatus("TrkHough");
+     CAL2    = CAL2 & t->GetBranchStatus("CaloLevel2");
+     CAL1    = CAL1 & t->GetBranchStatus("CaloLevel1");
+     TOF    = TOF & t->GetBranchStatus("ToFLevel2");
+     TRG    = TRG & t->GetBranchStatus("TrigLevel2");
+     S4     = S4  & t->GetBranchStatus("S4Level2");
+     ND     = ND  & t->GetBranchStatus("NDLevel2");
+     AC     = AC  & t->GetBranchStatus("AcLevel2");
+     ORB    = ORB & t->GetBranchStatus("OrbitalInfo");
+     // Tracker
+     if(TRK1) {
+         t->SetBranchAddress("TrkLevel1", GetPointerTo("TrkLevel2"));
+         cout << "Tracker      : set branch address TrkLevel1"<<endl;
+     };
+     if(TRK2) {
+         t->SetBranchAddress("TrkLevel2", GetPointerTo("TrkLevel1"));
+         cout << "Tracker      : set branch address TrkLevel2"<<endl;
+     };
+     if(TRKh) {
+         t->SetBranchAddress("TrkHough", GetPointerTo("TrkHough"));
+         cout << "Tracker      : set branch address TrkHough"<<endl;
+     };
+     // Calorimeter
+     if(CAL1) {
+         t->SetBranchAddress("CaloLevel1", GetPointerTo("CaloLevel1"));
+         cout << "Calorimeter  : set branch address CaloLevel1"<<endl;
+     };
+     if(CAL2) {
+         t->SetBranchAddress("CaloLevel2", GetPointerTo("CaloLevel2"));
+         cout << "Calorimeter  : set branch address CaloLevel2"<<endl;
+     };
+     // ToF
+     if(TOF) {
+         t->SetBranchAddress("ToFLevel2", GetPointerTo("ToFLevel2"));
+         cout << "ToF          : set branch address ToFLevel2"<<endl;
+     };
+     // Trigger
+     if(TRG) {
+         t->SetBranchAddress("TrigLevel2", GetPointerTo("TrigLevel2"));
+         cout << "Trigger      : set branch address TrigLevel2"<<endl;
+     };
+     // S4
+     if(S4) {
+         t->SetBranchAddress("S4Level2", GetPointerTo("S4Level2"));
+         cout << "S4           : set branch address S4Level2"<<endl;
+     };
+     // Neutron Detector
+     if(ND) {
+         t->SetBranchAddress("NDLevel2", GetPointerTo("NDLevel2"));
+         cout << "NeutronD     : set branch address NDLevel2"<<endl;
+     };
+     // Anticounters
+     if(AC) {
+         t->SetBranchAddress("AcLevel2", GetPointerTo("AcLevel2"));
+         cout << "Anticounter  : set branch address AcLevel2"<<endl;
+     };
+     // OrbitalInfo
+     if(ORB) {
+         t->SetBranchAddress("OrbitalInfo", GetPointerTo("OrbitalInfo"));
+         cout << "OrbitalInfo  : set branch address OrbitalInfo"<<endl;
+     };
+     // SelectionList
+     if(SELLI==1) {
+         t->SetBranchAddress("RunEntry", &irun);
+         cout << "SelectionList: set branch address RunEntry"<<endl;
+         t->SetBranchAddress("EventEntry", &irunentry);
+         cout << "SelectionList: set branch address EventEntry"<<endl;
+     };
+ }
+ /**
+  * Set branch addresses for Pamela friend trees
+  */
+ void PamLevel2::SetBranchAddress(TChain *t){
+     TRK2    = TRK2 & t->GetBranchStatus("TrkLevel2");
+     TRK1    = TRK1 & t->GetBranchStatus("TrkLevel1");
+     TRKh    = TRKh & t->GetBranchStatus("TrkHough");
+     CAL1    = CAL1 & t->GetBranchStatus("CaloLevel1");
+     CAL2    = CAL2 & t->GetBranchStatus("CaloLevel2");
+     TOF    = TOF & t->GetBranchStatus("ToFLevel2");
+     TRG    = TRG & t->GetBranchStatus("TrigLevel2");
+     S4     = S4  & t->GetBranchStatus("S4Level2");
+     ND     = ND  & t->GetBranchStatus("NDLevel2");
+     AC     = AC  & t->GetBranchStatus("AcLevel2");
+     ORB    = ORB & t->GetBranchStatus("OrbitalInfo");
+     // Tracker
+      if(TRK2) {
+         t->SetBranchAddress("TrkLevel2", GetPointerTo("TrkLevel2"));
+         cout << "Tracker      : set branch address TrkLevel2"<<endl;
+     };
+     if(TRK1) {
+         t->SetBranchAddress("TrkLevel1", GetPointerTo("TrkLevel1"));
+         cout << "Tracker      : set branch address TrkLevel1"<<endl;
+     };
+      if(TRKh) {
+         t->SetBranchAddress("TrkHough", GetPointerTo("TrkHough"));
+         cout << "Tracker      : set branch address TrkHough"<<endl;
+      };
+     // Calorimeter
+     if(CAL2) {
+         t->SetBranchAddress("CaloLevel2", GetPointerTo("CaloLevel2"));
+         cout << "Calorimeter  : set branch address CaloLevel2"<<endl;
+     };
+     if(CAL1) {
+         t->SetBranchAddress("CaloLevel1", GetPointerTo("CaloLevel1"));
+         cout << "Calorimeter  : set branch address CaloLevel1"<<endl;
+     };
+     // ToF
+     if(TOF) {
+         t->SetBranchAddress("ToFLevel2", GetPointerTo("ToFLevel2"));
+         cout << "ToF          : set branch address ToFLevel2"<<endl;
+     };
+     // Trigger
+     if(TRG) {
+         t->SetBranchAddress("TrigLevel2", GetPointerTo("TrigLevel2"));
+         cout << "Trigger      : set branch address TrigLevel2"<<endl;
+     };
+     // S4
+     if(S4) {
+         t->SetBranchAddress("S4Level2", GetPointerTo("S4Level2"));
+         cout << "S4           : set branch address S4Level2"<<endl;
+     };
+     // Neutron Detector
+     if(ND) {
+         t->SetBranchAddress("NDLevel2", GetPointerTo("NDLevel2"));
+         cout << "NeutronD     : set branch address NDLevel2"<<endl;
+     };
+     // Anticounters
+     if(AC) {
+         t->SetBranchAddress("AcLevel2", GetPointerTo("AcLevel2"));
+         cout << "Anticounter  : set branch address AcLevel2"<<endl;
+     };
+     // OrbitalInfo
+     if(ORB) {
+         t->SetBranchAddress("OrbitalInfo", GetPointerTo("OrbitalInfo"));
+         cout << "OrbitalInfo  : set branch address OrbitalInfo"<<endl;
+     };
+     // SelectionList
+     if(SELLI==1) {
+         t->SetBranchAddress("RunEntry", &irun);
+         cout << "SelectionList: set branch address RunEntry"<<endl;
+         t->SetBranchAddress("EventEntry", &irunentry);
+         cout << "SelectionList: set branch address EventEntry"<<endl;
+     };
+ }
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Get the Run tree chain from a list of files.
+  * @param fl Pointer to a TList of TSystemFiles
+  * @return Pointer to a TChain
+  */
+ TChain *PamLevel2::GetRunTree(TList *fl){
+   //
+   //
+   //
+   if ( run_tree ){
+     printf("WARNING: TChain *PamLevel2::GetRunTree(TList *fl) -- run_tree already exists!\n ");
+     return run_tree;
+   };
+   //
+   TChain *R = new TChain("Run");
+     // loop over files and create chains
+     TIter next(fl);
+     TSystemFile *questo = 0;
+     while ( (questo = (TSystemFile*) next()) ) {
+         TString name =  questo->GetName();
+ //              cout << "File: "<< name << endl;
+         if( CheckLevel2File(name) ){
+             R->Add(name);
+         };
+     }
+     if(R->GetNtrees()){
+         R->SetBranchAddress("RunInfo", GetPointerTo("RunInfo"));
+         cout << "Run         : set branch address RunInfo"<<endl;
+         R->SetBranchAddress("SoftInfo", GetPointerTo("SoftInfo")); // Emiliano
+         cout << "Software    : set branch address SoftInfo"<<endl; // Emiliano
+     }else{
+         delete R;
+         R=0;
+     }
+     run_tree = R;
+     return R;
+ }
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Get the Run tree  from a file.
+  * @param f Pointer to a TFile
+  * @return Pointer to a TTree
+  */
+ TTree *PamLevel2::GetRunTree(TFile *f){
+   if ( run_tree ){
+     printf("WARNING: TTree *PamLevel2::GetRunTree(TFile *f) -- run_tree already exists!\n ");
+     return run_tree;
+   };
+     cout << "TTree *PamLevel2::GetRunTree(TFile *f) -- obsolte "<<endl;
+     TTree *T = (TTree*)f->Get("Run");
+     if(T){
+         T->SetBranchAddress("RunInfo", GetPointerTo("RunInfo"));
+         cout << "Run         : set branch address RunInfo"<<endl;
+         T->SetBranchAddress("SoftInfo", GetPointerTo("SoftInfo")); // Emiliano
+         cout << "Software    : set branch address SoftInfo"<<endl; // Emiliano
+     }
+     run_tree = (TChain*)T;
+     return T;
+ }
+ /**
+  * Update the runinfo informations (to be used to have Run infos event by event basis)
+  * @param run Pointer to the chain/tree which contains run infos
+  * @return true if a new run has been read, false if it is still the same run
+  */
+ Bool_t PamLevel2::UpdateRunInfo(TChain *run, Long64_t iev){
+   //
+   // check if we have already called once GetEntry, if not call it
+   //
+     cout << "Bool_t PamLevel2::UpdateRunInfo(TChain *run, Long64_t iev) --- NON FUNZIONA BENISSIMO.... "<<endl;
+     if(!run){
+           cout << "Bool_t PamLevel2::UpdateRunInfo(TChain *run, ULong64_t iev) -- ERROR -- missing RunInfo tree "<<endl;
+           return(false);
+     }
+     if ( run->GetEntries() <= 0 ) return(false);
+   //
+   //  Int_t oldrun = irun;
+   Long64_t oldrun = irun;
+   // --------------------------------------
+   // if it is a full file (not preselected)
+   // --------------------------------------
+   if(SELLI==0){
+       //
+       // the absolute time is necessary to relate the event with the run
+       //
+       if( !GetOrbitalInfo() && !ISGP){
+           cout << "Bool_t PamLevel2::UpdateRunInfo(TChain *run, ULong64_t iev) -- ERROR -- missing OrbitalInfo "<<endl;
+           return(false);
+       }
+       ULong64_t abstime = 0;
+       if( GetOrbitalInfo() )abstime=GetOrbitalInfo()->absTime;
+       //
+       // the first time the routine is called, set run search from the beginning
+       //
+       if ( irun < 0LL ){
+           irun = 0LL;
+           run->GetEntry(irun);
+           runfirstentry = 0LL;
+           runlastentry += (Long64_t)(this->GetRunInfo()->NEVENTS);
+           if ( (Long64_t)(this->GetRunInfo()->NEVENTS) > 0LL ) runlastentry -= 1LL;
+           if( ISGP && run->GetEntries()!=1 ){
+               cout << "** WARNING ** simulated files are assumed to have 1 single run, not "<< run->GetEntries() << endl;
+               cout << "** WARNING ** run will not be updated"<<endl;
+           }
+       };
+       //
+       if(ISGP)abstime = GetRunInfo()->RUNHEADER_TIME; // BARBATRUCCO
+       //
+       if ( irun == run->GetEntries()-1LL &&
+            !(abstime >= GetRunInfo()->RUNHEADER_TIME &&
+              abstime <= GetRunInfo()->RUNTRAILER_TIME)
+             ){
+          irun = -1LL;
+          runfirstentry = 0LL;
+          runlastentry = -1LL;
+        };
+       // modificato il controllo sull'aggiornamento del run, per evitare problemi
+       // dovuti agli eventi annidati (NB! NEVENTS conta anche questi!!)
+       //
+       bool fromfirst = true;
+       //
+       while ( !(abstime >= GetRunInfo()->RUNHEADER_TIME && abstime <= GetRunInfo()->RUNTRAILER_TIME) && irun < run->GetEntries()-1LL ){
+ //      while ( iev > (runfirstentry+(ULong64_t)(this->GetRunInfo()->NEVENTS-1)) && irun < run->GetEntries() ){
+           irun++;
+           run->GetEntry(irun);
+           runfirstentry = runlastentry;
+           if ( (Long64_t)(this->GetRunInfo()->NEVENTS) > 0LL ) runfirstentry += 1LL;
+           runlastentry += (Long64_t)(this->GetRunInfo()->NEVENTS);
+ //        cout << " ))))) UPDATE RUN INFO (((((  @iev "<<iev<<" run "<<GetRunInfo()->ID<<" irun "<<irun<<endl;
+ //        cout << "runfirstentry "<<runfirstentry<<endl;
+           //      printf(" iev %llu %u %llu \n",iev,this->GetRunInfo()->NEVENTS,(ULong64_t)(runfirstentry+(ULong64_t)(this->GetRunInfo()->NEVENTS)));
+           //      printf(" abstime %u trailertime %u \n",abstime,GetRunInfo()->RUNTRAILER_TIME);
+           //      printf(" IDRUN %u \n",GetRunInfo()->ID);
+           //
+ //        prevshift = 0;
+           //
+           if ( irun == (Long64_t)(run->GetEntries()-1LL) && fromfirst && !(abstime >= GetRunInfo()->RUNHEADER_TIME && abstime <= GetRunInfo()->RUNTRAILER_TIME)){
+               printf(" resetting irun  (it should NOT happen!!!)\n");
+               fromfirst = false;
+               irun = 0;
+               run->GetEntry(irun);
+               runfirstentry = 0ULL;
+               runlastentry += (Long64_t)(this->GetRunInfo()->NEVENTS);
+               if ( (Long64_t)(this->GetRunInfo()->NEVENTS) > 0LL ) runlastentry -= 1LL;
+           };
+           //
+       };
+       //
+       if (
+            !(abstime >= GetRunInfo()->RUNHEADER_TIME &&
+              abstime <= GetRunInfo()->RUNTRAILER_TIME)
+           ) {
+         printf(" Something very wrong here: cannot find RUN containing absolute time %llu \n",abstime);
+           return false;
+       }
+       //
+       if ( irun == oldrun || irun >= run->GetEntries() ) return(false);
+       //
+       //  printf(" iev %llu irun %i nevents %u 1st %llu last %llu \n",iev,irun,this->GetRunInfo()->NEVENTS,(ULong64_t)runfirstentry,(ULong64_t)runlastentry);
+       //
+       prevshift = 0;
+       cout << " ))))) UPDATE RUN INFO (((((  @iev "<<iev<<" run "<<GetRunInfo()->ID<<" irun "<<irun<<endl;
+ //      cout << "runfirstentry "<<runfirstentry<<endl;
+       return(true);
+   };
+   // ----------------------------------------------------
+   // if it is a preselected file (there is SelectionList)
+   // NBNB - the event tree MUST be read first
+   // ----------------------------------------------------
+   if(SELLI==1){
+       sel_tree->GetEntry(iev);
+ //      cout << irun << " "<< irunentry << endl;
+       if(irun != oldrun){
+           run->GetEntry(irun);
+           cout << " ))))) UPDATE RUN INFO (((((  @iev "<<iev<<" run "<<GetRunInfo()->ID<<" irun "<<irun<<endl;
+           prevshift = 0;
+           return true;
+       }
+       return false;
+   }
+   return false;
+   //
+ };
+ Bool_t PamLevel2::UpdateRunInfo(Long64_t iev){
+     if(!run_tree){
+         cout << " Bool_t PamLevel2::UpdateRunInfo(ULong64_t iev) -- ERROR -- run tree not loaded"<<endl;
+         return false;
+     }
+     if ( run_tree->GetEntries() <= 0 ) {
+         cout << " Bool_t PamLevel2::UpdateRunInfo(ULong64_t iev) -- ERROR -- run tree is empty"<<endl;
+         return(false);
+     }
+     Int_t oldrun = irun; // store current run index
+     // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
+     // if it is a full file (not preselected)
+     // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
+     if(SELLI==0){
+         // ---------------------------------------------------------------
+         // increment dead and live-time counters
+         // ---------------------------------------------------------------
+         if( GetTrigLevel2() ){
+             totdltime[0]+=GetTrigLevel2()->dltime[0];
+             totdltime[1]+=GetTrigLevel2()->dltime[1];
+         }
+         totdltime[2]++;
+ //      cout << setw(10)<<totdltime[0]<<setw(10)<<totdltime[1]<<setw(10)<<totdltime[2]<<endl;
+         // ---------------------------------------------------------------
+         // retrieve OBT and absolute time of the event
+         // ---------------------------------------------------------------
+         ULong64_t abstime = 0;
+         ULong64_t obt     = 0;
+         if( GetOrbitalInfo() ){
+             abstime = GetOrbitalInfo()->absTime;
+             obt     = GetOrbitalInfo()->OBT;
+         }
+         // ---------------------------------------------------------------
+         // the absolute time is necessary to relate the event with the run
+         // ---------------------------------------------------------------
+         if( !GetOrbitalInfo() && !ISGP ){
+             cout << "Bool_t PamLevel2::UpdateRunInfo(Long64_t iev) -- ERROR -- missing OrbitalInfo "<<endl;
+             return(false);
+         }
+         // -----------------------------------------------------------------------
+         // the first time the routine is called, set run search from the beginning
+         // -----------------------------------------------------------------------
+         if ( irun < 0 ){
+             irun = 0LL;
+             irunentry = 0;
+             prevshift = 0;
+             run_tree->GetEntry(irun);
+             if( ISGP && run_tree->GetEntries()!=1 ){
+                 cout << "** WARNING ** simulated files are assumed to have 1 single run, not "<< run_tree->GetEntries() << endl;
+                 cout << "** WARNING ** run will not be updated"<<endl;
+             }
+         };
+         // -----------------------------------------------------------------------
+         // if it is simulation, assigh abstime by hand (temporaneo!!!)
+         // -----------------------------------------------------------------------
+         if(ISGP){
+             abstime = GetRunInfo()->RUNHEADER_TIME; // BARBATRUCCO
+             obt     = GetRunInfo()->RUNHEADER_OBT; // BARBATRUCCO
+         }
+         //
+         bool fromfirst = true; // first loop over runs
+ //      Bool_t hasfrag = false;
+ //      if( GetRunInfo()->ID_RUN_FRAG!=0 && GetRunInfo()->ID_RUN_FRAG != GetRunInfo()->ID)hasfrag=true;
+ //      ULong64_t fragid = GetRunInfo()->ID_RUN_FRAG;
+         // ------------------------------------------------------
+         // loop over runs to find the one that contains the event
+         // ------------------------------------------------------
+         while (
+             (
+                 (
+                     !(abstime >= GetRunInfo()->RUNHEADER_TIME &&    // check on absolute time (s)
+                       abstime <= GetRunInfo()->RUNTRAILER_TIME) &&
+                     !(obt >= GetRunInfo()->RUNHEADER_OBT &&         // additional check on OBT (ms)
+                       obt <= GetRunInfo()->RUNTRAILER_OBT)
+                     )
+                 || GetRunInfo()->NEVENTS==0
+                 || !(irunentry < GetRunInfo()->NEVENTS-1-prevshift)
+                 )
+                 && irun < run_tree->GetEntries() ){
+             // -----------------------------------------
+             // store dead and live-time of previous run
+             // -----------------------------------------
+             if(fromfirst){
+                 if(oldrun==irun){
+                     /// decrement counters
+                     if( GetTrigLevel2()){
+                         totdltime[0]-=GetTrigLevel2()->dltime[0];//live-time
+                         totdltime[1]-=GetTrigLevel2()->dltime[1];//dead-time
+                     }
+                     totdltime[2]--;                              //event counter
+                     cout << endl;
+                     cout << "n.events     : "<<totdltime[2]<<endl;
+                     cout << "RUN LIVE-TIME: "<<totdltime[0]*0.16<<" ms"<<endl;
+                     cout << "RUN DEAD-TIME: "<<totdltime[1]*0.01<<" ms"<<endl;
+                 }else{
+                     totdltime[0]=0;//live-time
+                     totdltime[1]=0;//dead-time
+                     totdltime[2]=0;                             //event counter
+                     cout << " *** JUMP RUN *** irun "<<irun<<endl;
+                 }
+                 /// add an entry
+                 if(run_tree_clone)
+                     if(run_tree_clone->GetBranch("DeadLiveTime")->GetEntries() < run_tree->GetEntries())
+                         run_tree_clone->GetBranch("DeadLiveTime")->Fill();
+                 /// reset counters
+                 if( GetTrigLevel2() ){
+                     totdltime[0]=GetTrigLevel2()->dltime[0];//live-time
+                     totdltime[1]=0;                         //dead-time
+                 }
+                 totdltime[2]=1;                             //event counter
+             }
+             irun++;
+             // ------------------------------------
+             // if the end of run tree is reached...
+             // ------------------------------------
+             if( irun == run_tree->GetEntries() ){
+                 if(!fromfirst){
+                     // -----------------------------------------------------
+                     // if it happened already once and the run was not found
+                     // ---> exit with error
+                     // -----------------------------------------------------
+                     cout << "Bool_t PamLevel2::UpdateRunInfo(Long64_t iev) -- ERROR -- event entry #"<<iev<<" does not belong to any run (should not happen)" <<endl;
+                     return false;
+                 }
+                 // -----------------------------------------
+                 // ...otherwise repeat search from beginning
+                 // -----------------------------------------
+                 cout << "Bool_t PamLevel2::UpdateRunInfo(Long64_t iev) -- WARNING -- reached end of run tree. searchin again from beginning " <<endl;
+                 fromfirst = false;
+                 irun = 0LL;
+                 runfirstentry = 0LL;
+             }
+             // -------------------------------------------------------------------
+             // save the index of the first entry of the run, relative to pam_tree,
+             // and read a new run
+             // -------------------------------------------------------------------
+             if(irun>0)runfirstentry += (GetRunInfo()->NEVENTS)-prevshift;
+             irunentry = 0;
+             prevshift = 0;
+             run_tree->GetEntry(irun);
+             if(GetRunInfo()->RUNHEADER_OBT>GetRunInfo()->RUNTRAILER_OBT ){
+                 cout << "Bool_t PamLevel2::UpdateRunInfo(Long64_t iev) -- WARNING -- irun "<<irun<<"  has RUNHEADER_OBT>=RUNTRAILER_OBT " <<endl;
+                 cout << "                                                            (NB!! in this case some events are assigned to a wrong run)"<<endl;
+             }
+ //          if(hasfrag &&  fragid != GetRunInfo()->ID){
+ //              cout << "... where is the next fragment ??"<<endl;
+ //          }
+         };
+         // --------------------------------------
+         // if there was no need to update the run
+         // ---> exit with FALSE
+         // --------------------------------------
+         if ( irun == oldrun ) return(false);
+         // --------------------------------------
+         // ... otherwise
+         // --------------------------------------
+ //      // -----------------------------------------
+ //      // store dead and live-time of previous run
+ //      // -----------------------------------------
+ //      // --------------------------------------------------------------
+ //      // if the run is empty, fill the dead-live time branch with zeros
+ //      // --------------------------------------------------------------
+ //      /// if some runs have been jumped, fill with zeros
+ //      if(irun-oldrun>1){
+ //          ULong64_t  temp[3];
+ //          temp[0]=totdltime[0];
+ //          temp[1]=totdltime[1];
+ //          temp[2]=totdltime[2];
+ //          for(int i=oldrun+1; i<irun; irun++){
+ //              totdltime[0]=0;
+ //              totdltime[1]=0;
+ //              totdltime[2]=0;
+ //              cout << " ** JUMPED RUN **"<<endl;
+ //              if(run_tree_clone)
+ //                  if(run_tree_clone->GetBranch("DeadLiveTime")->GetEntries() < run_tree->GetEntries())
+ //                      run_tree_clone->GetBranch("DeadLiveTime")->Fill();
+ //          }
+ //          totdltime[0]=temp[0];
+ //          totdltime[1]=temp[1];
+ //          totdltime[2]=temp[2];
+ //      }
+ //      /// decrement counters
+ //      if( GetTrigLevel2() ){
+ //          totdltime[0]-=GetTrigLevel2()->dltime[0];//live-time
+ //          totdltime[1]-=GetTrigLevel2()->dltime[1];//dead-time
+ //      }
+ //      totdltime[2]--;                              //event counter
+ //      /// add an entry
+ //      if(irun>0 ){
+ //          cout << endl;
+ //          cout << "n.events     : "<<totdltime[2]<<endl;
+ //          cout << "RUN LIVE-TIME: "<<totdltime[0]*0.16<<" ms"<<endl;
+ //          cout << "RUN DEAD-TIME: "<<totdltime[1]*0.01<<" ms"<<endl;
+ //          if(run_tree_clone)
+ //              if(run_tree_clone->GetBranch("DeadLiveTime")->GetEntries() < run_tree->GetEntries())
+ //                  run_tree_clone->GetBranch("DeadLiveTime")->Fill();
+ //      }
+ //      /// reset counters
+ //      if( GetTrigLevel2() ){
+ //          totdltime[0]=GetTrigLevel2()->dltime[0];//live-time
+ //          totdltime[1]=0;                         //dead-time
+ //      }
+ //      totdltime[2]=1;                             //event counter
+         // --------------------------------------
+         // ---> exit with TRUE
+         // --------------------------------------
+         cout << endl << " ))))) UPDATE RUN INFO (((((  @iev "<<iev<<" run "<<GetRunInfo()->ID<<" irun "<<irun<<endl;
+         // ----------------------------------------------------
+         // then check if the run has a fragment
+         // in this case we have to switch to the next fragment
+         // when the end of the first fragment is reached
+         // ----------------------------------------------------
+         if(
+             GetRunInfo()->ID_RUN_FRAG != 0 &&
+ //          GetRunInfo()->ID_RUN_FRAG != GetRunInfo()->ID &&
+             true ){
+             cout << "* fragment *"<<endl;
+         }
+         return(true);
+     };
+     // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
+     // if it is a preselected file (there is SelectionList)
+     // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
+     if(SELLI==1){
+         sel_tree->GetEntry(iev);
+         if(irun != oldrun){
+             run_tree->GetEntry(irun);
+             cout << endl << " ))))) UPDATE RUN INFO (((((  @iev "<<iev<<" run "<<GetRunInfo()->ID<<" irun "<<irun<<endl;
+             prevshift = 0;
+             return true;
+         }
+         return false;
+     }
+     return false;
+     //
+ };
+ /**
+  * Update the runinfo informations (to be used to have Run infos event by event basis)
+  * @param run Pointer to the chain/tree which contains run infos
+  * @return true if a new run has been read, false if it is still the same run
+  */
+ Bool_t PamLevel2::UpdateRunInfo(TTree *run, Long64_t iev){
+   return(UpdateRunInfo((TChain*)run,iev));
+ };
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Set which trees shoul be analysed
+  * @param detlist TString containing the sequence of trees required
+ */
+ void PamLevel2::SetWhichTrees(TString detlist){
+     if(detlist.IsNull() || detlist.Contains("+ALL", TString::kIgnoreCase)){
+         CAL0 = false;
+         CAL1 = true;
+         CAL2 = true;
+         TRK2 = true;
+         TRK1 = false;
+         TRKh = false;
+         TRK0 = false;
+         TRG = true;
+         TOF = true;
+         TOF0 = false;
+         S4  = true;
+         ND  = true;
+         AC  = true;
+         ORB = true;
+     }else if( detlist.Contains("-ALL", TString::kIgnoreCase) ){
+         CAL0 = false;
+         CAL1 = false;
+         CAL2 = false;
+         TRK2 = false;
+         TRK1 = false;
+         TRKh = false;
+         TRK0 = false;
+         TRG = false;
+         TOF = false;
+         TOF0 = false;
+         S4  = false;
+         ND  = false;
+         AC  = false;
+         ORB = false;
+     };
+ //  -------------------------------------------------------------------------
+     if( detlist.Contains("CAL1", TString::kIgnoreCase) ){
+         if ( detlist.Contains("-CAL1", TString::kIgnoreCase) )CAL1=false;
+         if ( detlist.Contains("+CAL1", TString::kIgnoreCase) )CAL1=true;
+     };
+     if( detlist.Contains("CAL0", TString::kIgnoreCase) ){
+         if ( detlist.Contains("-CAL0", TString::kIgnoreCase) )CAL0=false;
+         if ( detlist.Contains("+CAL0", TString::kIgnoreCase) )CAL0=true;
+     };
+     if( detlist.Contains("CAL2", TString::kIgnoreCase)){
+         if ( detlist.Contains("-CAL2", TString::kIgnoreCase) )CAL2=false;
+         if ( detlist.Contains("+CAL2", TString::kIgnoreCase) )CAL2=true;
+     };
+     if( detlist.Contains("+CAL", TString::kIgnoreCase) && !CAL1 && !CAL2 )CAL2=true;
+     if( detlist.Contains("-CAL", TString::kIgnoreCase) && CAL1 && CAL2 ){
+         CAL2=false;
+         CAL1=false;
+     }
+ //  -------------------------------------------------------------------------
+     if( detlist.Contains("TRK0", TString::kIgnoreCase) ){
+         if ( detlist.Contains("-TRK0", TString::kIgnoreCase) )TRK0=false;
+         if ( detlist.Contains("+TRK0", TString::kIgnoreCase) )TRK0=true;
+     };
+     if( detlist.Contains("TRK1", TString::kIgnoreCase) ){
+         if ( detlist.Contains("-TRK1", TString::kIgnoreCase) )TRK1=false;
+         if ( detlist.Contains("+TRK1", TString::kIgnoreCase) )TRK1=true;
+     };
+     if( detlist.Contains("TRK2", TString::kIgnoreCase)){
+         if ( detlist.Contains("-TRK2", TString::kIgnoreCase) )TRK2=false;
+         if ( detlist.Contains("+TRK2", TString::kIgnoreCase) )TRK2=true;
+     };
+     if( detlist.Contains("TRKh", TString::kIgnoreCase)){
+         if ( detlist.Contains("-TRKh", TString::kIgnoreCase) )TRKh=false;
+         if ( detlist.Contains("+TRKh", TString::kIgnoreCase) )TRKh=true;
+     };
+     if( detlist.Contains("+TRK", TString::kIgnoreCase) && !TRK1 && !TRK2 && !TRKh )TRK2=true;
+     if( detlist.Contains("-TRK", TString::kIgnoreCase) && TRK1 && TRK2 && TRKh){
+         TRK2=false;
+         TRK1=false;
+         TRKh=false;
+     }
+ //  -------------------------------------------------------------------------
+     if( detlist.Contains("-TRG", TString::kIgnoreCase) )TRG = false;
+     else if( detlist.Contains("+TRG", TString::kIgnoreCase) )TRG = true;
+     if( detlist.Contains("-TOF", TString::kIgnoreCase) )TOF = false;
+     else if( detlist.Contains("+TOF", TString::kIgnoreCase) )TOF = true;
+     if( detlist.Contains("-TOF0", TString::kIgnoreCase) )TOF0 = false;
+     else if( detlist.Contains("+TOF0", TString::kIgnoreCase) )TOF0 = true;
+     if( detlist.Contains("-S4",  TString::kIgnoreCase) )S4  = false;
+     else if( detlist.Contains("+S4",  TString::kIgnoreCase) )S4  = true;
+     if( detlist.Contains("-ND",  TString::kIgnoreCase) )ND  = false;
+     else if( detlist.Contains("+ND",  TString::kIgnoreCase) )ND  = true;
+     if( detlist.Contains("-AC",  TString::kIgnoreCase) )AC  = false;
+     else if( detlist.Contains("+AC",  TString::kIgnoreCase) )AC  = true;
+     if( detlist.Contains("-ORB", TString::kIgnoreCase) )ORB = false;
+     else if( detlist.Contains("+ORB", TString::kIgnoreCase) )ORB = true;
+ //     cout<< "Set detector list --> ";
+ //     if(TRK1)cout<<"TRK1 ";
+ //     if(TRK2)cout<<"TRK2 ";
+ //     if(TRKh)cout<<"TRKH ";
+ //     if(CAL1)cout<<"CAL1 ";
+ //     if(CAL2)cout<<"CAL2 ";
+ //     if(TOF)cout<<"TOF ";
+ //     if(TRG)cout<<"TRG ";
+ //     if(AC)cout<<"AC ";
+ //     if(ND)cout<<"ND ";
+ //     if(S4)cout<<"S4 ";
+ //     if(ORB)cout<<"ORB ";
+ //     cout << endl;
+ };
+ /**
+  * Set tree/branch detector flags from the content of a tree
+  */
+ void  PamLevel2::GetWhichTrees(TFile* f){
+     cout << "void  PamLevel2::GetWhichTrees(TFile* f) --- WARNING!! --- ...potrebbe non funzionare "<<endl;
+     // -----------
+     // reset flags
+     // -----------
+     CAL1   = false;
+     CAL2   = false;
+     TRK2   = false;
+     TRK1   = false;
+     TRKh   = false;
+     TRG    = false;
+     TOF    = false;
+     S4     = false;
+     ND     = false;
+     AC     = false;
+     ORB    = false;
+     RUN    = false;
+     cout << "Checking file: "<<f->GetName()<<endl;
+     if( !f || f->IsZombie() ){
+         cout << "File: "<< f->GetName() <<" Non valid root file"<< endl;
+         return;
+     }
+     TList *lk = f->GetListOfKeys();
+     TIter next(lk);
+     TKey *key =0;
+     Int_t nev = 0;
+     while( (key = (TKey*)next()) ){
+         if( !strcmp(key->GetName(),"Run"        ) )RUN = true;
+         //=========================================================
+         if( !strcmp(key->GetName(),"Trigger"    ) ){
+             TRG = true;
+             Int_t nevt = ((TTree*)f->Get("Trigger"))->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<" Trigger tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 TRG = false;
+             }else nev=nevt;
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"ToF"        ) ){
+             TOF = true;
+             Int_t nevt = ((TTree*)f->Get("ToF"))->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<"     ToF tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 TOF = false;
+             }else nev=nevt;
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"S4"         ) ){
+             S4 = true;
+             Int_t nevt = ((TTree*)f->Get("S4"))->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<"      S4 tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 S4 = false;
+             }else nev=nevt;
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"NeutronD"   ) ){
+             ND = true;
+             Int_t nevt = ((TTree*)f->Get("NeutronD"))->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<"NeutronD tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 ND =false;
+             }else nev=nevt;
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"Anticounter") ){
+             AC = true;
+             Int_t nevt = ((TTree*)f->Get("Anticounter"))->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<" Anticounter tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 AC =false;
+             }else nev=nevt;
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"OrbitalInfo") ){
+             ORB = true;
+             Int_t nevt = ((TTree*)f->Get("OrbitalInfo"))->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<" OrbitalInfo tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 ORB = false;
+             }else nev=nevt;
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"Tracker"    ) ){
+             TTree *T = (TTree*)f->Get("Tracker");
+             for(Int_t i=0; i<T->GetListOfBranches()->GetEntries(); i++){
+                 TString name = T->GetListOfBranches()->At(i)->GetName();
+                 if( !name.CompareTo("TrkLevel1") )TRK1=true;
+                 if( !name.CompareTo("TrkLevel2") )TRK2=true;
+                 if( !name.CompareTo("TrkHough") )TRKh=true;
+             };
+             Int_t nevt = T->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<" Tracker tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 TRK1 = false;
+                 TRK2 = false;
+                 TRKh = false;
+             }else nev=nevt;
+             T->Delete();
+         };
+         //=========================================================
+         if( !strcmp(key->GetName(),"Calorimeter"    ) ){
+             TTree *T = (TTree*)f->Get("Calorimeter");
+             for(Int_t i=0; i<T->GetListOfBranches()->GetEntries(); i++){
+                 TString name = T->GetListOfBranches()->At(i)->GetName();
+                 if( !name.CompareTo("CaloLevel1") )CAL1=true;
+                 if( !name.CompareTo("CaloLevel2") )CAL2=true;
+             };
+             Int_t nevt = T->GetEntries();
+             if( nev && nevt!=nev){
+                 cout << "File: "<< f->GetName() <<"  Calorimeter tree has "<<nevt<<" events instead of "<<nev<< endl;
+                 CAL1 = false;
+                 CAL2 = false;
+             }else nev=nevt;
+             T->Delete();
+         };
+     };
+     delete lk;
+ //     cout<< "Get detector list from input file --> ";
+ //     if(TRK1)cout<<"TRK1 ";
+ //     if(TRK2)cout<<"TRK2 ";
+ //     if(TRKh)cout<<"TRKH ";
+ //     if(CAL1)cout<<"CAL1 ";
+ //     if(CAL2)cout<<"CAL2 ";
+ //     if(TOF)cout<<"TOF ";
+ //     if(TRG)cout<<"TRG ";
+ //     if(AC)cout<<"AC ";
+ //     if(ND)cout<<"ND ";
+ //     if(S4)cout<<"S4 ";
+ //     if(ORB)cout<<"ORB ";
+ //     cout << endl;
+     return ;
+ };
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
+ /**
+  * Check if a file contains selected Pamela Level2 trees.
+  * @param name File name
+  * @return true if the file is ok.
+  */
+ Bool_t  PamLevel2::CheckLevel2File(TString name){
+     Bool_t CAL1__ok   = false;
+     Bool_t CAL2__ok   = false;
+     Bool_t TRK2__ok   = false;
+     Bool_t TRK1__ok   = false;
+     Bool_t TRKh__ok   = false;
+     Bool_t TRG__ok    = false;
+     Bool_t TOF__ok    = false;
+     Bool_t S4__ok     = false;
+     Bool_t ND__ok     = false;
+     Bool_t AC__ok     = false;
+     Bool_t ORB__ok    = false;
+     Bool_t RUN__ok    = false;
+     Bool_t SELLI__ok  = false;
+     cout << "Checking file: "<<name<<endl;
+     TFile *f = new TFile(name.Data());
+     if( !f || f->IsZombie() ){
+         cout << "File: "<< f->GetName() <<" discarded ---- Non valid root file"<< endl; return false;
+     }
+ //    cout << "Get list of keys: "<<f<<endl;
+     TList *lk = f->GetListOfKeys();
+ //    lk->Print();
+     TIter next(lk);
+     TKey *key =0;
+     Int_t nev = 0;
+     while( (key = (TKey*)next()) ){
+ //      cout << key->GetName() << endl;
+ //      cout << key->GetName() << ""<<key->GetClassName()<<endl;
+ //              cout << " Get tree: " << f->Get(key->GetName())<<endl;
+ //      nev_previous = nev;
+ //      cout << " n.entries  "<< nev <<endl;
+ //      if( key->GetClassName()=="TTree" && nev_previous && nev != nev_previous ){
+ //          nev = ((TTree*)f->Get(key->GetName()))->GetEntries();
+ //          cout << "File: "<< f->GetName() <<" discarded ---- "<< key->GetName() << " tree: n.entries does not match "<<nev<<" "<<nev_previous<< endl;
+ //          return false;
+ //      };
+         if( !strcmp(key->GetName(),"Run"        ) )RUN__ok = true;
+         //=========================================================
+         if( !strcmp(key->GetName(),"SelectionList"    ) ){
+             SELLI__ok = true;
+             if(SELLI==1){
+                 Int_t nevt = ((TTree*)f->Get("SelectionList"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- SelectionList tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"Trigger"    ) ){
+             TRG__ok = true;
+             if(TRG){
+                 Int_t nevt = ((TTree*)f->Get("Trigger"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- Trigger tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"ToF"        ) ){
+             TOF__ok = true;
+             if(TOF){
+                 Int_t nevt = ((TTree*)f->Get("ToF"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- ToF tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"S4"         ) ){
+             S4__ok = true;
+             if(S4){
+                 Int_t nevt = ((TTree*)f->Get("S4"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- S4 tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"NeutronD"   ) ){
+             ND__ok = true;
+             if(ND){
+                 Int_t nevt = ((TTree*)f->Get("NeutronD"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- NeutronD tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"Anticounter") ){
+             AC__ok = true;
+             if(AC){
+                 Int_t nevt = ((TTree*)f->Get("Anticounter"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- Anticounter tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"OrbitalInfo") ){
+             ORB__ok = true;
+             if(ORB){
+                 Int_t nevt = ((TTree*)f->Get("OrbitalInfo"))->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- OrbitalInfo tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+         }
+         //=========================================================
+         if( !strcmp(key->GetName(),"Tracker"    ) ){
+             TTree *T = (TTree*)f->Get("Tracker");
+             if(TRK1||TRK2||TRKh){
+                 Int_t nevt = T->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- Tracker tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+             for(Int_t i=0; i<T->GetListOfBranches()->GetEntries(); i++){
+                 TString name = T->GetListOfBranches()->At(i)->GetName();
+                 if( !name.CompareTo("TrkLevel1") )TRK1__ok=true;
+                 if( !name.CompareTo("TrkLevel2") )TRK2__ok=true;
+                 if( !name.CompareTo("TrkHough") )TRKh__ok=true;
+             };
+             T->Delete();
+         };
+         //=========================================================
+         if( !strcmp(key->GetName(),"Calorimeter"    ) ){
+             TTree *T = (TTree*)f->Get("Calorimeter");
+             if(CAL1||CAL2){
+                 Int_t nevt = T->GetEntries();
+                 if( nev && nevt!=nev){
+                     cout << "File: "<< f->GetName() <<" discarded ---- Calorimeter tree has "<<nevt<<" events instead of "<<nev<< endl;
+                     return false;
+                 }
+                 nev=nevt;
+             }
+             for(Int_t i=0; i<T->GetListOfBranches()->GetEntries(); i++){
+                 TString name = T->GetListOfBranches()->At(i)->GetName();
+                 if( !name.CompareTo("CaloLevel1") )CAL1__ok=true;
+                 if( !name.CompareTo("CaloLevel2") )CAL2__ok=true;
+             };
+             T->Delete();
+         };
+     };
+     if( SELLI==-1 )SELLI = (Int_t)SELLI__ok;
+     if( SELLI==0 && SELLI__ok ){
+         cout << "File: "<< f->GetName() <<" discarded ---- found SelectionList (it is not a full-event file)" << endl;
+         return false;
+     }
+     if( SELLI==1 && !SELLI__ok ){
+         cout << "File: "<< f->GetName() <<" discarded ---- SelectionList missing" << endl;
+         return false;
+     }
+ //    cout << "SELLI "<<SELLI<<endl;
+ //     cout<< "CheckLevel2File(TString): detector list --> ";
+ //     if(TRK1__ok)cout<<"TRK1 ";
+ //     if(TRK2__ok)cout<<"TRK2 ";
+ //     if(TRKh__ok)cout<<"TRKH ";
+ //     if(CAL1__ok)cout<<"CAL1 ";
+ //     if(CAL2__ok)cout<<"CAL2 ";
+ //     if(TOF__ok)cout<<"TOF ";
+ //     if(TRG__ok)cout<<"TRG ";
+ //     if(AC__ok)cout<<"AC ";
+ //     if(ND__ok)cout<<"ND ";
+ //     if(S4__ok)cout<<"S4 ";
+ //     if(ORB__ok)cout<<"ORB ";
+ //     cout << endl;
+     if(TRK2 && TRK1__ok)TRK1=1;
+ // ----------------------------------------------------------------------------
+ // NOTA
+ // se c'e` il level1, lo devo necessarimente leggere.
+ // infatti (non ho capito perche`) i cluster vengono letti e allocati in memoria
+ // comunque, ma non vengono disallocati da PamLevel2::Clear()
+ // ----------------------------------------------------------------------------
+     if(!RUN__ok) {
+         cout << "File: "<< f->GetName() <<" *WARNING* ---- Missing RunInfo tree"<< endl;
+ //      return false;
+     };
+     if(CAL1 && !CAL1__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing CaloLevel1 branch"<< endl;
+         return false;
+     };
+     if(CAL2 && !CAL2__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing CaloLevel2 branch"<< endl;
+         return false;
+     };
+     if(TRK2 && !TRK2__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing TrkLevel2 branch"<< endl;
+         return false;
+     };
+     if(TRK1 && !TRK1__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing TrkLevel1 branch"<< endl;
+         return false;
+     };
+     if(TRKh && !TRKh__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing TrkHough branch"<< endl;
+         return false;
+     };
+     if(ORB && !ORB__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing ORB tree"<< endl;
+         return false;
+     };
+     if(AC && !AC__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing AC tree"<< endl;
+         return false;
+     };
+     if(S4 && !S4__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing S4 tree"<< endl;
+         return false;
+     };
+     if(TOF && !TOF__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing ToF tree"<< endl;
+         return false;
+     };
+     if(ND && !ND__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing ND tree"<< endl;
+         return false;
+     };
+     if(TRG && !TRG__ok){
+         cout << "File: "<< f->GetName() <<" discarded ---- Missing Trigger tree"<< endl;
+         return false;
+     };
+ //    lk->Delete();
+ //    delete lk;
+     f->Close();
+ //     cout<< "CheckLevel2File(TString): detector list --> ";
+ //     if(TRK1)cout<<"TRK1 ";
+ //     if(TRK2)cout<<"TRK2 ";
+ //     if(TRKh)cout<<"TRKH ";
+ //     if(CAL1)cout<<"CAL1 ";
+ //     if(CAL2)cout<<"CAL2 ";
+ //     if(TOF)cout<<"TOF ";
+ //     if(TRG)cout<<"TRG ";
+ //     if(AC)cout<<"AC ";
+ //     if(ND)cout<<"ND ";
+ //     if(S4)cout<<"S4 ";
+ //     if(ORB)cout<<"ORB ";
+ //     cout << endl;
+     return true;
+ };
+ /**
+  * Create clone-trees
+  */
+ void PamLevel2::CreateCloneTrees0( TChain *fChain, TFile *ofile ){
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+     cout << "Create clones of PAMELA trees "<<endl;
+     Int_t i=0;
+     pam_tree_clone[i] = fChain->GetTree()->CloneTree(0);
+     TString name =  pam_tree_clone[i]->GetName();
+     name.Append("_clone");
+ //    pam_tree_clone[i]->SetName(name.Data());
+     cout << pam_tree_clone[i]->GetName() <<endl;
+     i++;
+     TList *li = fChain->GetListOfFriends();
+     TIter next(li);
+     TFriendElement* T_friend=0;
+     ofile->cd();
+     while( (T_friend = (TFriendElement*)next()) ){
+ //      cout<<T_friend->IsA()->GetName()<<" "<<T_friend->GetName()<<hex << T_friend->GetTree() << dec<<endl;
+ //      cout<<T_friend->GetTree()->GetName()<< endl;
+         pam_tree_clone[i] = T_friend->GetTree()->CloneTree(0);
+         pam_tree_clone[i]->SetAutoSave(1000000);
+         name =  pam_tree_clone[i]->GetName();
+         name.Append("_clone");
+ //      pam_tree_clone[i]->SetName(name.Data());
+         cout << pam_tree_clone[i]->GetName() << endl;
+         i++;
+     }
+     delete li;
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+ }
+ /**
+  * Create clone-trees
+  */
+ void PamLevel2::CreateCloneTrees(TFile *ofile){
+ //  if the pointer is null, create a default file
+     if(!ofile){
+         cout << "void PamLevel2::CreateCloneTrees(TFile*) -- WARNING -- Creating file: clone-tree.root "<<endl;
+         ofile = new TFile("clone-tree.root","recreate");
+     }
+     ofile->cd();
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+     cout << "Create new PAMELA trees "<<endl;
+     run_tree_clone = new TTree("Run","PAMELA Level2 data from the GL_RUN table ");
+     run_tree_clone->Branch("RunInfo","GL_RUN",GetPointerTo("RunInfo"));
+     cout << "Run          : branch RunInfo"<<endl;
+     run_tree_clone->Branch("SoftInfo","SoftInfo",GetPointerTo("SoftInfo"));
+     cout << "Run          : branch SoftInfo"<<endl;
+     // ------------------
+     // replicate run tree
+     // ------------------
+     cout << "----------------------------------------------------"<<endl;
+     cout << "irun\t | RUN\t NEVENTS\t absolute time"<<endl;
+     for (Int_t i=0; i<run_tree->GetEntries(); i++){
+         run_tree->GetEntry(i);
+         cout << i<< "\t | "<<GetRunInfo()->ID<<"\t "<<GetRunInfo()->NEVENTS<< "\t "<<GetRunInfo()->RUNHEADER_TIME<<" <---> "<<GetRunInfo()->RUNTRAILER_TIME<<endl;
+         run_tree_clone->Fill();
+     }
+     cout << "----------------------------------------------------"<<endl;
+     // ------------------------------------
+     // add branch with dead and live times
+     // ------------------------------------
+     run_tree_clone->Branch("DeadLiveTime",totdltime,"dltime[3]/l");
+     cout << "Run          : branch DeadLiveTime"<<endl;
+     sel_tree_clone = new TTree("SelectionList","List of selected events ");
+     sel_tree_clone->Branch("RunEntry",&irun,"runentry/L");
+     sel_tree_clone->Branch("EventEntry",&irunentry,"eventry/L");
+     Int_t i=0;
+     if(TRK1||TRK2||TRKh){
+         pam_tree_clone[i] = new TTree("Tracker","PAMELA tracker level2 data ");
+         if(TRK1) {
+             pam_tree_clone[i]->Branch("TrkLevel1","TrkLevel1", GetPointerTo("TrkLevel1"));
+             pam_tree_clone[i]->BranchRef();
+             cout << "Tracker      : branch TrkLevel1"<<endl;
+ //          cout << "CreateCloneTrees " << GetTrkLevel1()<<endl;
+         };
+         if(TRK2) {
+             pam_tree_clone[i]->Branch("TrkLevel2", "TrkLevel2",GetPointerTo("TrkLevel2"));
+             cout << "Tracker      : branch TrkLevel2"<<endl;
+         };
+         if(TRKh) {
+             pam_tree_clone[i]->Branch("TrkHough","TrkHough", GetPointerTo("TrkHough"));
+             cout << "Tracker      : branch TrkHough"<<endl;
+         };
+         i++;
+     }
+     // Calorimeter
+     if(CAL1||CAL2){
+         pam_tree_clone[i] = new TTree("Calorimeter","PAMELA calorimeter level2 data ");
+         if(CAL1) {
+             pam_tree_clone[i]->Branch("CaloLevel1", "CaloLevel1", GetPointerTo("CaloLevel1"));
+             cout << "Calorimeter  : branch CaloLevel1"<<endl;
+         };
+         if(CAL2) {
+             pam_tree_clone[i]->Branch("CaloLevel2","CaloLevel2", GetPointerTo("CaloLevel2"));
+             cout << "Calorimeter  : branch CaloLevel2"<<endl;
+         };
+         i++;
+     }
+     // ToF
+     if(TOF) {
+         pam_tree_clone[i] = new TTree("ToF","PAMELA ToF level2 data ");
+         pam_tree_clone[i]->Branch("ToFLevel2","ToFLevel2", GetPointerTo("ToFLevel2"));
+         cout << "ToF          : branch ToFLevel2"<<endl;
+         i++;
+     };
+     // Trigger
+     if(TRG) {
+         pam_tree_clone[i] = new TTree("Trigger","PAMELA trigger level2 data ");
+         pam_tree_clone[i]->Branch("TrigLevel2","TrigLevel2", GetPointerTo("TrigLevel2"));
+         cout << "Trigger      : branch TrigLevel2"<<endl;
+         i++;
+     };
+     // S4
+     if(S4) {
+         pam_tree_clone[i] = new TTree("S4","PAMELA S4 level2 data ");
+         pam_tree_clone[i]->Branch("S4Level2","S4Level2", GetPointerTo("S4Level2"));
+         cout << "S4           : branch S4Level2"<<endl;
+         i++;
+     };
+     // Neutron Detector
+     if(ND) {
+         pam_tree_clone[i] = new TTree("NeutronD","PAMELA neutron detector level2 data ");
+         pam_tree_clone[i]->Branch("NDLevel2","NDLevel2", GetPointerTo("NDLevel2"));
+         cout << "NeutronD     : branch NDLevel2"<<endl;
+         i++;
+     };
+     // Anticounters
+     if(AC) {
+         pam_tree_clone[i] = new TTree("Anticounter","PAMELA anticounter detector level2 data ");
+         pam_tree_clone[i]->Branch("AcLevel2","AcLevel2", GetPointerTo("AcLevel2"));
+         cout << "Anticounter  : branch AcLevel2"<<endl;
+         i++;
+     };
+     // OrbitalInfo
+     if(ORB) {
+         pam_tree_clone[i] = new TTree("OrbitalInfo","PAMELA oribital info  ");
+         pam_tree_clone[i]->Branch("OrbitalInfo","OrbitalInfo", GetPointerTo("OrbitalInfo"));
+         cout << "OrbitalInfo  : branch OrbitalInfo"<<endl;
+         i++;
+     };
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+ }
+ /**
+  * Fill tree (created with CreateCloneTrees)
+  *
+  */
+ //void PamLevel2::FillNewPamTree(TTree *T){
+ void PamLevel2::FillCloneTrees(){
+ //    cout << "PamLevel2::FillCloneTrees()" << irunentry << endl;
+     for(Int_t i=0; i<NCLONES; i++){
+         if(pam_tree_clone[i])pam_tree_clone[i]->Fill();
+     }
+     if(sel_tree_clone)sel_tree_clone->Fill();
+ }
+ TTree* PamLevel2::GetCloneTree(TString name){
+     for(Int_t i=0; i<NCLONES; i++){
+         if(pam_tree_clone[i]){
+             TString na = pam_tree_clone[i]->GetName();
+             if(!name.CompareTo(na))return pam_tree_clone[i];
+         };
+     }
+     if(run_tree_clone){
+         TString na = run_tree_clone->GetName();
+         if(!name.CompareTo(na))return run_tree_clone;
+     }
+     if(sel_tree_clone){
+         TString na = sel_tree_clone->GetName();
+         if(!name.CompareTo(na))return sel_tree_clone;
+     }
+     return NULL;
+ }
+ void PamLevel2::WriteCloneTrees(){
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+     cout << "Write clones of PAMELA trees "<<endl;
+     cout << run_tree_clone->GetName()<<endl;
+     if(run_tree_clone->GetBranch("DeadLiveTime")->GetEntries() < run_tree->GetEntries())
+         run_tree_clone->GetBranch("DeadLiveTime")->Fill();
+     run_tree_clone->Write();
+     cout << sel_tree_clone->GetName()<<endl;
+     sel_tree_clone->Write();
+     for(Int_t i=0; i<NCLONES; i++){
+         if(pam_tree_clone[i]){
+             cout << pam_tree_clone[i]->GetName()<<endl;
+             pam_tree_clone[i]->Write();
+         };
+     }
+     cout << "+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+" <<endl;
+ }
+ /**
+  * Method to get level2-trees entry, the corresponding run entry and (if required) the level0 entry.
+  */
+ //Int_t PamLevel2::GetEntry(Int_t iee){
+ Int_t PamLevel2::GetEntry(Long64_t iee){
+ //     cout << "-------------------------------------"<<endl;
+ //     cout << "Int_t PamLevel2::GetEntry("<<iee<<")"<<endl;
+     if(!pam_tree){
+         cout << " Int_t PamLevel2::GetEntry(Int_t) -- ERROR -- level2 trees not loaded"<<endl;
+         return 0;
+     }
+     //
+     // This is a sort of bug: if you don't have the run tree you don't want to exit here you want to have loaded the event anyway...
+     //
+     //    if(!run_tree ){
+     //  cout << " Int_t PamLevel2::GetEntry(Int_t) -- ERROR -- run tree not loeaded"<<endl;
+     //  return 0;
+     //    }
+     Long64_t ii=0;
+     //-------------------------------
+     ii = iee;
+     if( !pam_tree->GetEntry(ii) ){
+         cout << " Int_t PamLevel2::GetEntry(Int_t) -- ERROR -- error reading pam tree"<<endl;
+         return 0;
+     }
+     //
+     // ... that's way I put it here. Notice that nothing change in the code (is backward compatible) since in any case you return with 0.
+     // in theory one would like to return 1 if run is not loaded but now I don't have the will to add that 2 lines of code and it is not
+     // a problem if you don't check the return code of getentry.
+     //
+     if(!run_tree ){
+         if ( TRK0 || CAL0 || TOF0 || RUN ) { //forse cosi` va bene per tornare 1?
+             cout << " Int_t PamLevel2::GetEntry(Int_t) -- ERROR -- run tree not loaded"<<endl;
+             return 0;
+         }  else {
+             return 1; //cosi` se non c'e` run esce qua...
+         }
+     }
+     //-------------------------------
+     ii = iee;
+ //    Bool_t UPDATED = UpdateRunInfo(run_tree,ii);
+ //    Bool_t UPDATED = UpdateRunInfo(ii);
+     UpdateRunInfo(ii);
+     if(SELLI==0)irunentry = iee-runfirstentry;
+ //    if(UPDATED && run_tree_clone)run_tree_clone->Fill();
+ //    cout << "PamLevel2::GetEntry("<<iee<<") "<<irun<<" "<<runfirstentry<<" "<<irunentry<<endl;
+ //     cout << "irunentry     "<<irunentry << endl;
+ //     cout << "runfirstentry "<<runfirstentry << endl;
+ //     cout << "nevents       "<<GetRunInfo()->NEVENTS<< endl;
+ //     if( TRK0 || CAL0 || TOF0 ){
+ //      if( !GetYodaEntry( ) ){
+ //          cout << " Int_t PamLevel2::GetEntry(Int_t) -- ERROR -- error reading level0 tree"<<endl;
+ //          return 0;
+ //      }
+ //     }
+     return 1;
+ }
+ TrkLevel0    *PamLevel2::GetTrkLevel0(){
+     if( !TRK0 )return NULL;
+     if( !GetYodaEntry( ) ){
+         cout << " Int_t PamLevel2::GetTrkLevel0() -- ERROR -- error reading level0 tree"<<endl;
+         return 0;
+     }
+     return trk0_obj;
+ };
+ CaloLevel0    *PamLevel2::GetCaloLevel0(){
+     if( !CAL0 )return NULL;
+     if( !GetYodaEntry( ) ){
+         cout << " Int_t PamLevel2::GetCaloLevel0() -- ERROR -- error reading level0 tree"<<endl;
+         return 0;
+     }
+     return calo0_obj;
+ };
+ /**
+  * Method to retrieve the level0 tree (YODA tree) that contains the current event.
+  * Given the run ID (...), if needed it query the DB and load the proper file.
+  * @return Pointer to the tree
+  */
+ TTree* PamLevel2::GetYodaTree( ){
+ //    cout << "TTree* PamLevel2::GetYodaTree( )"<<endl;
+     //===================================
+     // check if iroot has changed
+     //===================================
+     if( irun<0 ){
+         cout << "PamLevel2::GetYodaTree() -- ERROR -- irun = "<<irun<<endl;
+ //      cout << "In order to use this method you have to first load the RunInfo tree "<<endl;
+         return NULL;
+     }
+     Int_t irootnew = run_obj->ID_ROOT_L0;
+ //      cout << "iroot    "<<iroot<<endl;
+ //      cout << "irootnew "<<irootnew<<endl;
+     //===================================
+     // load the level0 file
+     // (if not already loaded)
+     //===================================
+     if( iroot != irootnew || !l0_tree){
+         iroot = irootnew;
+         //===================================
+         // open the DB connection
+         // (if not already opened)
+         //===================================
+         if(!dbc || (dbc && !dbc->IsConnected())){
+             cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"<<endl;
+             cout<<"Connecting to DB"<<endl;
+             cout<<"HOST "<<host<<endl;
+             cout<<"USER "<<user<<endl;
+             cout<<"PSW  "<<psw<<endl;
+             dbc = TSQLServer::Connect(host.Data(),user.Data(),psw.Data());
+             if( !dbc )return NULL;
+             if( !dbc->IsConnected() )return NULL;
+ //          cout<<"...done"<<endl;
+             cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"<<endl;
+         }else{
+ //          cout<<"DB already connected"<<endl;
+         }
+         GL_ROOT glroot = GL_ROOT();
+         if( glroot.Query_GL_ROOT(iroot,dbc) ){
+             cout << "TTree* PamLevel2::GetYodaTree( ) -- ERROR -- level0 file iroot = "<<iroot<< " does not exists"<<endl;
+             return NULL;
+         };
+         TString filename = glroot.PATH + glroot.NAME;
+         if(l0_file){
+             l0_file->Close();
+             l0_file->Delete();
+         }
+         cout << "Opening LEVEL0 file: "<< filename << endl;
+         FileStat_t t;
+         if( gSystem->GetPathInfo(filename.Data(),t) ){
+             cout << " PamLevel2::GetYodaTree() -- ERROR opening file "<<endl;
+             return NULL;
+         }
+         l0_file = new TFile(filename);
+         if( !l0_file )return NULL;
+         l0_tree = (TTree*)l0_file->Get("Physics");
+         if(!h0_obj)h0_obj = new EventHeader();
+         l0_tree->SetBranchAddress("Header" ,&h0_obj);
+         prevshift = 0;
+         //---------------------------------------------------
+         // TRACKER:
+         if(TRK0){
+             if(!trk0_obj){
+                 trk0_obj = new TrkLevel0();
+                 trk0_obj->Set();
+             };
+             l0_tree->SetBranchAddress("Tracker" ,trk0_obj->GetPointerToTrackerEvent());
+         }
+         //--------------------------------------------------
+         // CALORIMETER:
+         if(CAL0){
+             if(!calo0_obj){
+                 calo0_obj = new CaloLevel0();
+                 calo0_obj->Set();
+             };
+             l0_tree->SetBranchAddress("Calorimeter" ,calo0_obj->GetPointerToCalorimeterEvent());
+             //      cout << "PamLevel2::GetYodaTree() --- level0 calorimeter not implemented "<<endl;
+         }
+         //---------------------------------------------------
+         // TOF:
+         if(TOF0){
+             cout << "PamLevel2::GetYodaTree() --- level0 TOF not implemented "<<endl;
+         }
+     };
+     if(!dbc || (dbc && !dbc->IsConnected())){
+         cout << " TTree* PamLevel2::GetYodaTree( ) -- no DB connected... hai fatto qualche cazzata "<<endl;
+     }
+     if ( TRK0 ){
+         TrkParams::Load(6);
+         if( !TrkParams::IsLoaded(6) ){
+             cout << " TTree* PamLevel2::GetYodaTree( ) -- WARNING -- VK-mask not loaded"<<endl;
+         };
+         TrkParams::SetCalib(run_obj,dbc);
+         TrkParams::LoadCalib( );
+         if( !TrkParams::CalibIsLoaded() ){
+             cout << " TTree* PamLevel2::GetYodaTree( ) -- WARNING -- Calibration not loaded"<<endl;
+         };
+     }
+ //    cout << l0_tree << endl;
+     return l0_tree;
+ }
+ /**
+  * Method to retrieve the level0 tree (YODA tree) that contains the current event.
+  */
+ Int_t PamLevel2::GetYodaEntry(){
+ //    cout << "Int_t PamLevel2::GetYodaEntry()"<<endl;
+     if(!GetYodaTree())return 0;
+     // patch
+     if( irunentry < 0){
+ //      cout << "Int_t PamLevel2::GetYodaEntry() -- ATTENZIONE -- irunentry negativo?!?! "<<(Int_t)irunentry<<endl;
+         irunentry=0LL;
+     }
+     //  ---------------------------------
+     //  if file is NOT a preselected file
+     //  ---------------------------------
+     Long64_t quellagiusta = irunentry + (Long64_t)(run_obj->EV_FROM);
+ //     cout << " irunentry "<<irunentry<<endl;
+ //     cout << " EV_FROM "<<run_obj->EV_FROM<<endl;
+ //     cout << " quellagiusta = irunentry + EV_FROM "<< quellagiusta << endl;
+ //     cout << " irun "<< irun << " irunentry "<< irunentry<<" run_obj->EV_FROM "<<run_obj->EV_FROM <<" quella giusta "<<quellagiusta << endl;
+ //     cout << " iroot "<<iroot<<" run_obj->ID_ROOT_L0 "<<run_obj->ID_ROOT_L0<<endl;
+ //     cout << " time "<< abstime << endl;
+ //     cout << " trk_calib_used "<<run_obj->TRK_CALIB_USED<< endl;
+     ULong64_t obt     = 0;
+     ULong64_t pktn    = 0;
+     if( GetOrbitalInfo() ){
+         obt     = GetOrbitalInfo()->OBT;
+         pktn    = GetOrbitalInfo()->pkt_num;
+     }
+     if( !GetOrbitalInfo() && !ISGP){
+         cout << "Int_t PamLevel2::GetYodaEntry() -- ERROR -- missing OrbitalInfo "<<endl;
+         return 0;
+     }
+     if( obt==0 && pktn==0 && !ISGP ){
+         cout << "Int_t PamLevel2::GetYodaEntry() -- ERROR -- level2 event corrupted ?? "<<endl;
+         return 0;
+     }
+     // ---------------------------------------------------------------------
+     // ATTENTION!!!
+     // If data are not pre-processed with cleaner, the level0 tree may contain
+     // spurious nested physics packets.
+     // The GL_RUN variables EV_FROM, EV_TO and NEVENTS counts also these entries
+     // while level2 tree DOES NOT!!
+     // This means that "quellagiusta" in these cases is not correct.
+     // In order to retrieve the correct level0 event, I implemented a check
+     // of the OBT and pkt-number. In case of mismatch, the level0 entry number
+     // is shift forward until when the packets match.
+     // ---------------------------------------------------------------------
+     Int_t answer = 0;
+     Int_t shift =0;
+     //    printf(" siamo qui %i %i \n",shift,prevshift);
+     Int_t maxshift = 10;
+     do{
+         if(shift>0){
+             cout << " PKTNUM  L2 --- "<< pktn << " --- L0 --- "<< GetEventHeader()->GetPscuHeader()->GetCounter()<<endl;
+             cout << "         RUN: ID "<< GetRunInfo()->ID << " ID_ROOT_L0 "<<run_obj->ID_ROOT_L0<<" ID_RUN_FRAG "<<GetRunInfo()->ID_RUN_FRAG << " EV_FROM "<<GetRunInfo()->EV_FROM  <<endl;
+             cout << "         L2 <--> L0 mismatch ( irun "<<irun<<" irunentry "<<irunentry<<" shift "<<shift<<" prevshift "<<prevshift<<" )"<<endl;
+         }
+         answer = l0_tree->GetEntry(quellagiusta+(Long64_t)shift+(Long64_t)prevshift);
+         shift++;
+         if( !GetEventHeader() ){
+             cout << "Int_t PamLevel2::GetYodaEntry() -- ERROR -- missing EventHeader "<<endl;
+             return 0;
+         }
+         if(ISGP){
+             obt = (UInt_t)(GetEventHeader()->GetPscuHeader()->GetOrbitalTime()); //BARBATRUCCO
+             pktn = (UInt_t)(GetEventHeader()->GetPscuHeader()->GetCounter()); //BARBATRUCCO
+         }
+ //      cout << "PKTNUM "<<shift<<" ==  L2 --- "<< pktn << " --- L0 --- "<< GetEventHeader()->GetPscuHeader()->GetCounter()<<endl;
+ //      cout << " L2 --- "<< obt << " --- L0 --- "<< GetEventHeader()->GetPscuHeader()->GetOrbitalTime()<<endl;
+ //      if( (quellagiusta+shift) == l0_tree->GetEntries()+1 )cout << ">>> end of level0 tree <<<"<<endl;
+ //      cout << " obt "<< obt << endl;
+ //      cout << " GetEventHeader()->GetPscuHeader()->GetOrbitalTime() "<< GetEventHeader()->GetPscuHeader()->GetOrbitalTime() << endl;
+ //      cout << " pktn "<< pktn << endl;
+ //      cout << " GetEventHeader()->GetPscuHeader()->GetCounter() "<< GetEventHeader()->GetPscuHeader()->GetCounter() << endl;
+ //      printf(" IDRUN %u \n",GetRunInfo()->ID);
+ //
+         if ( prevshift != 0 && (quellagiusta+(Long64_t)shift) == GetYodaTree()->GetEntries() ){
+           prevshift = 0;
+           shift = -1;
+         };
+     }while( ( obt != (UInt_t)(GetEventHeader()->GetPscuHeader()->GetOrbitalTime()) ||
+               pktn != (UInt_t)(GetEventHeader()->GetPscuHeader()->GetCounter())       )
+             && (quellagiusta+(Long64_t)shift) < GetYodaTree()->GetEntries() && shift < maxshift);
+     if ( (quellagiusta+(Long64_t)shift+(Long64_t)prevshift) > GetYodaTree()->GetEntries() || shift == maxshift ) {
+         cout << " Big trouble here, no such event in Level0 data! " <<endl;
+         return 0;
+     }
+ //    cout << "LA ENTRY GIUSTA E`: "<<quellagiusta<<" (spero...)"<<endl;
+ //    return GetYodaTree()->GetEntry(quellagiusta);
+     if ( shift > 1 ) prevshift += (shift-1);
+     return answer;
+ }
+ /**
+  * \Brief Set DB connection
+  */
+ Bool_t PamLevel2::SetDBConnection(){
+     cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"<<endl;
+     cout<<"Connecting to DB"<<endl;
+     cout<<"HOST "<<host<<endl;
+     cout<<"USER "<<user<<endl;
+     cout<<"PSW  "<<psw<<endl;
+     dbc = TSQLServer::Connect(host.Data(),user.Data(),psw.Data());
+     if( !dbc )return false;
+     if( !dbc->IsConnected() )return false;
+     cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"<<endl;
+     return true;
+ }
+ /**
+  * \Brief Add a friend to the pamela chain.
+  * @param cname name of the chain to be added
+  */
+ TChain* PamLevel2::AddFriend(TString cname){
+     if(!GetPamTree()){
+         cout << " TChain* PamLevel2::AddFriend(TString cname) --- a pamela tree must be created first"<<endl;
+         return NULL;
+     }
+     TChain *c = new TChain( cname.Data() );
+     TIter next( GetPamTree()->GetListOfFiles() );
+     Int_t nf = 0;
+     TChainElement* element = 0;
+     while ((element = (TChainElement*) next())) {
+         c->Add(element->GetTitle());
+         nf++;
+     }
+     GetPamTree()->AddFriend(cname.Data());
+     cout << "external chain created and added to pamela friends :"<<cname<<endl;
+     cout << "n.files "<<nf<<endl;
+     return c;
  }

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