/[PAMELA software]/DarthVader/TrackerLevel2/src/TrkLevel2.cpp

Diff of /DarthVader/TrackerLevel2/src/TrkLevel2.cpp

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-revision 1.32 by pam-fi,
Fri Apr 27 10:39:57 2007 UTC
+revision 1.39 by pam-fi,
Wed Aug 22 07:03:45 2007 UTC
 Line 12 
 using namespace std;
  extern "C" {
      void dotrack_(int*, double*, double*, double*, double*, int*);
      void dotrack2_(int*, double*, double*, double*, double*,double*, double*, double*,int*);
-      void mini2_(int*,int*,int*);
+     void mini2_(int*,int*,int*);
-      void guess_();
+     void guess_();
-      void gufld_(float*, float*);
+     void gufld_(float*, float*);
+     float risxeta2_(float *);
+     float risxeta3_(float *);
+     float risxeta4_(float *);
+     float risyeta2_(float *);
  }
  //--------------------------------------
-Line 56 
 TrkTrack::TrkTrack(){
+Line 60 
 TrkTrack::TrkTrack(){
  //    clx = TRefArray(6,0);
  //    cly = TRefArray(6,0);
+     TrkParams::SetTrackingMode();
+     TrkParams::SetPrecisionFactor();
+     TrkParams::SetStepMin();
+     TrkParams::SetPFA();
  };
  //--------------------------------------
  //
-Line 95 
 TrkTrack::TrkTrack(const TrkTrack& t){
+Line 104 
 TrkTrack::TrkTrack(const TrkTrack& t){
  //    clx = TRefArray(t.clx);
  //    cly = TRefArray(t.cly);
+     TrkParams::SetTrackingMode();
+     TrkParams::SetPrecisionFactor();
+     TrkParams::SetStepMin();
+     TrkParams::SetPFA();
  };
  //--------------------------------------
  //
-Line 351 
 Int_t TrkTrack::GetLeverArmY(){
+Line 365 
 Int_t TrkTrack::GetLeverArmY(){
      }
      return (last_plane-first_plane+1);
  }
+ /**
+  * Returns the reduced chi-square of track x-projection
+  */
+ Float_t  TrkTrack::GetChi2X(){
+     float chiq=0;
+     for(int ip=0; ip<6; ip++)if(XGood(ip))chiq+= pow((xv[ip]-xm[ip])/resx[ip],2.);
+     if(GetNX()>3)chiq=chiq/(GetNX()-3);
+     else chiq=0;
+     if(chiq==0)cout << " Float_t  TrkTrack::GetChi2X() -- WARNING -- value not defined "<<chiq<<endl;
+     return chiq;
+ }
+ /**
+  * Returns the reduced chi-square of track y-projection
+  */
+ Float_t  TrkTrack::GetChi2Y(){
+     float chiq=0;
+     for(int ip=0; ip<6; ip++)if(YGood(ip))chiq+= pow((yv[ip]-ym[ip])/resy[ip],2.);
+     if(GetNY()>2)chiq=chiq/(GetNY()-2);
+     else chiq=0;
+     if(chiq==0)cout << " Float_t  TrkTrack::GetChi2Y() -- WARNING -- value not defined "<<chiq<<endl;
+     return chiq;
+ }
+ /**
+  * Returns the logarythm of the likeliwood-function of  track x-projection
+  */
+ Float_t TrkTrack::GetLnLX(){
+     float lnl=0;
+     for(int ip=0; ip<6; ip++)
+         if( XGood(ip) && tailx[ip]!=0 )
+             lnl += (tailx[ip]+1.) * log( (tailx[ip]*pow(resx[ip],2.) + pow(xv[ip]-xm[ip],2.)) / (tailx[ip]*pow(resx[ip],2)) );
+     if(GetNX()>3)lnl=lnl/(GetNX()-3);
+     else lnl=0;
+     if(lnl==0){
+         cout << " Float_t  TrkTrack::GetLnLX() -- WARNING -- value not defined "<<lnl<<endl;
+         Dump();
+     }
+     return lnl;
+ }
+ /**
+  * Returns the logarythm of the likeliwood-function of  track y-projection
+  */
+ Float_t TrkTrack::GetLnLY(){
+     float lnl=0;
+     for(int ip=0; ip<6; ip++)
+         if( YGood(ip) && taily[ip]!=0 )
+             lnl += (taily[ip]+1.) * log( (taily[ip]*pow(resy[ip],2.) + pow(yv[ip]-ym[ip],2.)) / (taily[ip]*pow(resy[ip],2)) );
+     if(GetNY()>2)lnl=lnl/(GetNY()-2);
+     else lnl=0;
+     if(lnl==0){
+         cout << " Float_t  TrkTrack::GetLnLY() -- WARNING -- value not defined "<<lnl<<endl;
+         Dump();
+     }
+     return lnl;
+ }
+ /**
+  * Returns the effective angle, relative to the sensor, on each plane.
+  * @param ip plane (0-5)
+  * @param iv view (0=x 1=y)
+  */
+ Float_t TrkTrack::GetEffectiveAngle(int ip, int iv){
+     if(ip<0 || ip>5){
+         cout << "Float_t TrkTrack::GetEffectiveAngle(int "<<ip<<", int "<<iv<<") ==> wrong input"<<endl;
+         return 0.;
+     }
+     float v[3]={xv[ip],yv[ip],zv[ip]};
+     //-----------------------------------------
+     // effective angle (relative to the sensor)
+     //-----------------------------------------
+     float axv_geo  = axv[ip];
+     float muhall_h = 297.61; //cm**2/Vs
+     float BY = TrkParams::GetBY(v);
+     float axv_eff = 0;
+     if(ip==5) axv_geo = -1*axv_geo;
+     if(ip==5) BY      = -1*BY;
+     axv_eff = 180.*atan( tan(axv_geo*acos(-1.)/180.) + muhall_h * BY * 0.0001)/acos(-1.);
+     //-----------------------------------------
+     // effective angle (relative to the sensor)
+     //-----------------------------------------
+     float ayv_geo = ayv[ip];
+     float muhall_e = 1258.18; //cm**2/Vs
+     float BX = TrkParams::GetBX(v);
+     float ayv_eff = 0;
+     ayv_eff = 180.*atan( tan(ayv_geo*acos(-1.)/180.) + muhall_e * BX * 0.0001)/acos(-1.);
+     if     (iv==0)return axv_eff;
+     else if(iv==1)return ayv_eff;
+     else{
+         cout << "Float_t TrkTrack::GetEffectiveAngle(int "<<ip<<", int "<<iv<<") ==> wrong input"<<endl;
+         return 0.;
+     }
+ };
  //--------------------------------------
  //
  //
-Line 372 
 void TrkTrack::Dump(){
+Line 483 
 void TrkTrack::Dump(){
      cout << endl << "zv       : "; for(int i=0; i<6; i++)cout << zv[i] << " ";
      cout << endl << "resx     : "; for(int i=0; i<6; i++)cout << resx[i] << " ";
      cout << endl << "resy     : "; for(int i=0; i<6; i++)cout << resy[i] << " ";
+     cout << endl << "tailx    : "; for(int i=0; i<6; i++)cout << tailx[i] << " ";
+     cout << endl << "taily    : "; for(int i=0; i<6; i++)cout << taily[i] << " ";
      cout << endl << "coval    : "; for(int i=0; i<5; i++)cout << coval[0][i]<<" ";
      cout << endl << "           "; for(int i=0; i<5; i++)cout << coval[1][i]<<" ";
      cout << endl << "           "; for(int i=0; i<5; i++)cout << coval[2][i]<<" ";
-Line 397 
 void TrkTrack::SetResolution(double *rx,
+Line 510 
 void TrkTrack::SetResolution(double *rx,
      for(int i=0; i<6; i++) resy[i]=*ry++;
  }
  /**
+  * Set the TrkTrack tails position resolution
+  */
+ void TrkTrack::SetTail(double *tx, double *ty, double factor){
+     for(int i=0; i<6; i++) tailx[i]=factor*(*tx++);
+     for(int i=0; i<6; i++) taily[i]=factor*(*ty++);
+ }
+ /**
+  * Set the TrkTrack Student parameter (resx,resy,tailx,taily)
+  * from previous gausian fit
+  *@param flag =0 standard, =1 with noise correction
+  */
+ void TrkTrack::SetStudentParam(int flag){
+     float sx[11]={0.000128242,
+.000136942,
+.000162718,
+.000202644,
+.00025597,
+.000317456,
+.000349048,
+.000384638,
+.000457295,
+.000512319,
+.000538573};
+     float tx[11]={1.79402,
+.04876,
+.88376,
+.3,
+.14084,
+.07686,
+.44736,
+.5179,
+.38697,
+.45739,
+.18627};
+     float sy[11]={0.000483075,
+.000466925,
+.000431658,
+.000428317,
+.000433854,
+.000444044,
+.000482098,
+.000537579,
+.000636279,
+.000741998,
+.000864261};
+     float ty[11]={0.997032,
+.11147,
+.18526,
+.61404,
+.21908,
+.08959,
+.48833,
+.42687,
+.65253,
+.52043,
+.29926};
+     int index;
+     float fact;
+     for(int i=0; i<6; i++) {
+         index = int((fabs(axv[i])+1.)/2.);
+         if(index>10) index=10;
+         tailx[i]=tx[index];
+         if(flag==1) {
+             if(fabs(axv[i])<=10.) fact = resx[i]/risxeta2_(&(axv[i]));
+             if(fabs(axv[i])>10.&&fabs(axv[i])<=15.) fact = resx[i]/risxeta3_(&(axv[i]));
+             if(fabs(axv[i])>15.) fact = resx[i]/risxeta4_(&(axv[i]));
+         } else fact = 1.;
+         resx[i] = sx[index]*fact;
+     }
+     for(int i=0; i<6; i++) {
+         index = int((fabs(ayv[i])+1.)/2.);
+         if(index>10) index=10;
+         taily[i]=ty[index];
+         if(flag==1) fact = resy[i]/risyeta2_(&(ayv[i]));
+         else fact = 1.;
+         resy[i] = sy[index]*fact;
+     }
+ }
+ /**
   * Set the TrkTrack good measurement
   */
  void TrkTrack::SetGood(int *xg, int *yg){
-     // NB! si perdera` l'informazione sul numero del cluster
      for(int i=0; i<6; i++) xgood[i]=*xg++;
      for(int i=0; i<6; i++) ygood[i]=*yg++;
  }
-Line 415 
 void TrkTrack::LoadField(TString path){
+Line 607 
 void TrkTrack::LoadField(TString path){
  //     path_.error   = 0;
  //     readb_();
+     TrkParams::SetTrackingMode();
+     TrkParams::SetPrecisionFactor();
+     TrkParams::SetStepMin();
      TrkParams::Set(path,1);
      TrkParams::Load(1);
-Line 428 
 void TrkTrack::FillMiniStruct(cMini2trac
+Line 624 
 void TrkTrack::FillMiniStruct(cMini2trac
      for(int i=0; i<6; i++){
- //      track.xgood[i]=xgood[i];
+ //      cout << i<<" - "<<xgood[i]<<" "<<XGood(i)<<endl;
- //      track.ygood[i]=ygood[i];
+ //      cout << i<<" - "<<ygood[i]<<" "<<YGood(i)<<endl;
          track.xgood[i]=XGood(i);
          track.ygood[i]=YGood(i);
-Line 455 
 void TrkTrack::FillMiniStruct(cMini2trac
+Line 651 
 void TrkTrack::FillMiniStruct(cMini2trac
          track.resx[i]=resx[i];
          track.resy[i]=resy[i];
+         track.tailx[i]=tailx[i];
+         track.taily[i]=taily[i];
      }
      for(int i=0; i<5; i++) track.al[i]=al[i];
-Line 486 
 void TrkTrack::SetFromMiniStruct(cMini2t
+Line 684 
 void TrkTrack::SetFromMiniStruct(cMini2t
  }
  /**
-  * Tracking method. It calls F77 mini routine.
+  * \brief Method to re-evaluate coordinates of clusters associated with a track.
+  *
+  * The method can be applied only after recovering level1 information
+  * (either by reprocessing single events from level0 or from
+  * the TrkLevel1 branch, if present); it calls F77 subroutines that
+  * read the level1 common and fill the minimization-routine common.
+  * Some clusters can be excluded or added by means of the methods:
+  *
+  * TrkTrack::ResetXGood(int ip)
+  * TrkTrack::ResetYGood(int ip)
+  * TrkTrack::SetXGood(int ip, int cid, int is)
+  * TrkTrack::SetYGood(int ip, int cid, int is)
+  *
+  * NB! The method TrkTrack::SetGood(int *xg, int *yg) set the plane-mask (0-1)
+  * for the minimization-routine common. It deletes the cluster information
+  * (at least for the moment...) thus cannot be applied before
+  * TrkTrack::EvaluateClusterPositions().
+  *
+  * Different p.f.a. can be applied by calling (once) the method:
+  *
+  * TrkParams::SetPFA(0); //Set ETA p.f.a.
+  *
+  * @see TrkParams::SetPFA(int)
+  */
+ Bool_t TrkTrack::EvaluateClusterPositions(){
+ //     cout << "void TrkTrack::GetClusterPositions() "<<endl;
+     TrkParams::Load( );
+     if( !TrkParams::IsLoaded() )return false;
+     for(int ip=0; ip<6; ip++){
+ //      cout << ip<<" ** "<<xm[ip]<<" / "<<ym[ip]<<endl;;
+         int icx = GetClusterX_ID(ip)+1;
+         int icy = GetClusterY_ID(ip)+1;
+         int sensor = GetSensor(ip)+1;//<< convenzione "Paolo"
+         if(ip==5 && sensor!=0)sensor=3-sensor;//<< convenzione "Elena"
+         int ladder = GetLadder(ip)+1;
+         float ax = axv[ip];
+         float ay = ayv[ip];
+         float v[3];
+         v[0]=xv[ip];
+         v[1]=yv[ip];
+         v[2]=zv[ip];
+         float bfx = 10*TrkParams::GetBX(v);//Tesla
+         float bfy = 10*TrkParams::GetBY(v);//Tesla
+         int ipp=ip+1;
+         xyzpam_(&ipp,&icx,&icy,&ladder,&sensor,&ax,&ay,&bfx,&bfy);
+         if(icx<0 || icy<0)return false;
+     }
+     return true;
+ }
+ /**
+  * \brief Tracking method. It calls F77 mini routine.
+  *
+  * @param pfixed Particle momentum. If pfixed=0 the momentum
+  * is left as a free parameter, otherwise it is fixed to the input value.
+  * @param fail Output flag (!=0 if the fit failed).
+  * @param iprint Flag to set debug mode ( 0 = no output; 1 = verbose; 2 = debug).
+  * @param froml1 Flag to re-evaluate positions (see TrkTrack::GetClusterPositions()).
+  *
+  * The option to re-evaluate positions can be used only after recovering
+  * level1 information, eg. by reprocessing the single event.
+  *
+  * Example:
+  *
+  * if( !event->GetTrkLevel0() )return false;
+  * event->GetTrkLevel0()->ProcessEvent(); // re-processing level0->level1
+  * int fail=0;
+  * event->GetTrkLevel2()->GetTrack(0)->Fit(0.,fail,0,1);
+  *
+  * @see EvaluateClusterPositions()
+  *
+  * The fitting procedure can be varied by changing the tracking mode,
+  * the fit-precision factor and the minimum number of step.
+  * @see SetTrackingMode(int)
+  * @see SetPrecisionFactor(double)
+  * @see SetStepMin(int)
   */
- void TrkTrack::Fit(double pfixed, int& fail, int iprint){
+ void TrkTrack::Fit(double pfixed, int& fail, int iprint, int froml1){
      float al_ini[] = {0.,0.,0.,0.,0.};
+     TrkParams::Load( );
+     if( !TrkParams::IsLoaded() )return;
      extern cMini2track track_;
      fail = 0;
-     FillMiniStruct(track_);
+     FillMiniStruct(track_);
+     if(froml1!=0){
+         if( !EvaluateClusterPositions() ){
+             cout << "void TrkTrack::Fit("<<pfixed<<","<<fail<<","<<iprint<<","<<froml1<<") --- ERROR evaluating cluster positions "<<endl;
+             FillMiniStruct(track_) ;
+             fail = 1;
+             return;
+         }
+     }else{
+         FillMiniStruct(track_);
+     }
      // if fit variables have been reset, evaluate the initial guess
      if(al[0]==-9999.&&al[1]==-9999.&&al[2]==-9999.&&al[3]==-9999.&&al[4]==-9999.)guess_();
-Line 514 
 void TrkTrack::Fit(double pfixed, int& f
+Line 804 
 void TrkTrack::Fit(double pfixed, int& f
      //  ------------------------------------------
      //  call mini routine
-     TrkParams::Load(1);
+ //     TrkParams::Load(1);
-     if( !TrkParams::IsLoaded(1) ){
+ //     if( !TrkParams::IsLoaded(1) ){
-         cout << "void TrkTrack::Fit(double pfixed, int& fail, int iprint) --- ERROR --- m.field not loaded"<<endl;
+ //      cout << "void TrkTrack::Fit(double pfixed, int& fail, int iprint) --- ERROR --- m.field not loaded"<<endl;
-         return;
+ //      return;
-     }
+ //     }
      int istep=0;
      int ifail=0;
      mini2_(&istep,&ifail, &iprint);
-Line 529 
 void TrkTrack::Fit(double pfixed, int& f
+Line 819 
 void TrkTrack::Fit(double pfixed, int& f
      //  ------------------------------------------
      SetFromMiniStruct(&track_);
- //    cout << endl << "eta ===> " << track_.al[4] << endl;
- //     for(int i=0; i<5; i++) al[i]=track_.al[i];
- //     chi2=track_.chi2;
- //     nstep=track_.nstep;
- //     for(int i=0; i<6; i++) xv[i]=track_.xv[i];
- //     for(int i=0; i<6; i++) yv[i]=track_.yv[i];
- //     for(int i=0; i<6; i++) zv[i]=track_.zv[i];
- //     for(int i=0; i<6; i++) axv[i]=track_.axv[i];
- //     for(int i=0; i<6; i++) ayv[i]=track_.ayv[i];
- //     for(int i=0; i<5; i++) {
- //      for(int j=0; j<5; j++) coval[i][j]=track_.cov[i][j];
- //     }
      if(fail){
-         if(iprint)cout << " >>>> fit failed >>>> drawing initial par"<<endl;
+         if(iprint)cout << " >>>> fit failed "<<endl;
          for(int i=0; i<5; i++) al[i]=al_ini[i];
      }
  };
- /*
+ /**
   * Reset the fit parameters
   */
  void TrkTrack::FitReset(){
      for(int i=0; i<5; i++) al[i]=-9999.;
      chi2=0.;
      nstep=0;
-     for(int i=0; i<6; i++) xv[i]=0.;
+ //     for(int i=0; i<6; i++) xv[i]=0.;
-     for(int i=0; i<6; i++) yv[i]=0.;
+ //     for(int i=0; i<6; i++) yv[i]=0.;
-     for(int i=0; i<6; i++) zv[i]=0.;
+ //     for(int i=0; i<6; i++) zv[i]=0.;
-     for(int i=0; i<6; i++) axv[i]=0.;
+ //     for(int i=0; i<6; i++) axv[i]=0.;
-     for(int i=0; i<6; i++) ayv[i]=0.;
+ //     for(int i=0; i<6; i++) ayv[i]=0.;
      for(int i=0; i<5; i++) {
          for(int j=0; j<5; j++) coval[i][j]=0.;
      }
  }
- /*
+ /**
   * Set the tracking mode
   */
  void TrkTrack::SetTrackingMode(int trackmode){
      extern cMini2track track_;
      track_.trackmode = trackmode;
  }
- /*
+ /**
   * Set the factor scale for tracking precision
   */
  void TrkTrack::SetPrecisionFactor(double fact){
      extern cMini2track track_;
      track_.fact = fact;
  }
- /*
+ /**
-  * Set the factor scale for tracking precision
+  * Set the minimum number of steps for tracking precision
   */
  void TrkTrack::SetStepMin(int istepmin){
      extern cMini2track track_;
      track_.istepmin = istepmin;
  }
+ /**
+  * Returns 1 if the track is inside the magnet cavity
- /*
+  * Set the minimum number of steps for tracking precision
+  */
+ Bool_t TrkTrack::IsInsideCavity(){
+     float xmagntop, ymagntop, xmagnbottom, ymagnbottom;
+     xmagntop = xv[0] + (ZMAGNHIGH-zv[0])*tan(cos(-1.0)*axv[0]/180.);
+     ymagntop = yv[0] + (ZMAGNHIGH-zv[0])*tan(cos(-1.0)*ayv[0]/180.);
+     xmagnbottom = xv[5] + (ZMAGNLOW-zv[5])*tan(cos(-1.0)*axv[5]/180.);
+     ymagnbottom = yv[5] + (ZMAGNLOW-zv[5])*tan(cos(-1.0)*ayv[5]/180.);
+     if( xmagntop>XMAGNLOW && xmagntop<XMAGNHIGH &&
+         ymagntop>YMAGNLOW && ymagntop<YMAGNHIGH &&
+         xmagnbottom>XMAGNLOW && xmagnbottom<XMAGNHIGH &&
+         ymagnbottom>YMAGNLOW && ymagnbottom<YMAGNHIGH ) return(true);
+     else return(false);
+ }
+ /**
   * Method to retrieve ID (0,1,...) of x-cluster (if any) associated to this track.
   * If no cluster is associated, ID=-1.
   * @param ip Tracker plane (0-5)
-Line 596 
 void TrkTrack::SetStepMin(int istepmin){
+Line 887 
 void TrkTrack::SetStepMin(int istepmin){
  Int_t TrkTrack::GetClusterX_ID(int ip){
      return ((Int_t)fabs(xgood[ip]))%10000000-1;
  };
- /*
+ /**
   * Method to retrieve ID (0-xxx) of y-cluster (if any) associated to this track.
   * If no cluster is associated, ID=-1.
   * @param ip Tracker plane (0-5)
-Line 604 
 Int_t TrkTrack::GetClusterX_ID(int ip){
+Line 895 
 Int_t TrkTrack::GetClusterX_ID(int ip){
  Int_t TrkTrack::GetClusterY_ID(int ip){
      return ((Int_t)fabs(ygood[ip]))%10000000-1;
  };
- /*
+ /**
   * Method to retrieve the ladder (0-4, increasing x) traversed by the track on this plane.
   * If no ladder is traversed (dead area) the metod retuns -1.
   * @param ip Tracker plane (0-5)
-Line 614 
 Int_t TrkTrack::GetLadder(int ip){
+Line 905 
 Int_t TrkTrack::GetLadder(int ip){
      if(YGood(ip))return (Int_t)fabs(ygood[ip]/100000000)-1;
      return -1;
  };
- /*
+ /**
   * Method to retrieve the sensor (0-1, increasing y) traversed by the track on this plane.
   * If no sensor is traversed (dead area) the metod retuns -1.
   * @param ip Tracker plane (0-5)
-Line 625 
 Int_t TrkTrack::GetSensor(int ip){
+Line 916 
 Int_t TrkTrack::GetSensor(int ip){
      return -1;
  };
+ /**
+  * \brief Method to include a x-cluster to the track.
+  * @param ip Tracker plane (0-5)
+  * @param clid Cluster ID (0,1,...)
+  * @param is Sensor (0-1, increasing y)
+  * @see Fit(double pfixed, int& fail, int iprint, int froml1)
+  */
+ void TrkTrack::SetXGood(int ip, int clid, int is){
+     int il=0;       //ladder (temporary)
+     bool bad=false; //ladder (temporary)
+     xgood[ip]=il*100000000+is*10000000+clid;
+     if(bad)xgood[ip]=-xgood[ip];
+ };
+ /**
+  * \brief Method to include a y-cluster to the track.
+  * @param ip Tracker plane (0-5)
+  * @param clid Cluster ID (0,1,...)
+  * @param is Sensor (0-1)
+  * @see Fit(double pfixed, int& fail, int iprint, int froml1)
+  */
+ void TrkTrack::SetYGood(int ip, int clid, int is){
+     int il=0;       //ladder (temporary)
+     bool bad=false; //ladder (temporary)
+     ygood[ip]=il*100000000+is*10000000+clid;
+     if(bad)ygood[ip]=-ygood[ip];
+ };
  //--------------------------------------
  //
-Line 778 
 void TrkLevel2::Dump(){
+Line 1095 
 void TrkLevel2::Dump(){
          for(int i=0; i<nclsy(); i++) ((TrkSinglet *)sy[i])->Dump();
      }
  }
+ /**
+  * \brief Dump processing status
+  */
+ void TrkLevel2::StatusDump(int view){
+     cout << "DSP n. "<<view+1<<" status: "<<hex<<good[view]<<endl;
+ };
+ /**
+  * \brief Check event status
+  *
+  * Check the event status, according to a flag-mask given as input.
+  * Return true if the view passes the check.
+  *
+  * @param view View number (0-11)
+  * @param flagmask Mask of flags to check (eg. flagmask=0x111 no missing packet,
+  *  no crc error, no software alarm)
+  *
+  * @see TrkLevel2 class definition to know how the status flag is defined
+  *
+  */
+ Bool_t TrkLevel2::StatusCheck(int view, int flagmask){
+     if( view<0 || view >= 12)return false;
+     return !(good[view]&flagmask);
+ };
  //--------------------------------------
  //
  //
-Line 1245 
 void TrkLevel2::LoadField(TString path){
+Line 1589 
 void TrkLevel2::LoadField(TString path){
  //     path_.error   = 0;
  //     readb_();
+     TrkParams::SetTrackingMode();
+     TrkParams::SetPrecisionFactor();
+     TrkParams::SetStepMin();
      TrkParams::Set(path,1);
      TrkParams::Load(1);
  //
  };
- /**
+ // /**
-  * Get BY (kGauss)
+ //  * Get BY (kGauss)
-  * @param v (x,y,z) coordinates in cm
+ //  * @param v (x,y,z) coordinates in cm
-  */
+ //  */
- float TrkLevel2::GetBX(float* v){
+ // float TrkLevel2::GetBX(float* v){
-     float b[3];
+ //     float b[3];
-     gufld_(v,b);
+ //     gufld_(v,b);
-     return b[0]/10.;
+ //     return b[0]/10.;
- }
+ // }
- /**
+ // /**
-  * Get BY (kGauss)
+ //  * Get BY (kGauss)
-  * @param v (x,y,z) coordinates in cm
+ //  * @param v (x,y,z) coordinates in cm
-  */
+ //  */
- float TrkLevel2::GetBY(float* v){
+ // float TrkLevel2::GetBY(float* v){
-     float b[3];
+ //     float b[3];
-     gufld_(v,b);
+ //     gufld_(v,b);
-     return b[1]/10.;
+ //     return b[1]/10.;
- }
+ // }
- /**
+ // /**
-  * Get BY (kGauss)
+ //  * Get BY (kGauss)
-  * @param v (x,y,z) coordinates in cm
+ //  * @param v (x,y,z) coordinates in cm
-  */
+ //  */
- float TrkLevel2::GetBZ(float* v){
+ // float TrkLevel2::GetBZ(float* v){
-     float b[3];
+ //     float b[3];
-     gufld_(v,b);
+ //     gufld_(v,b);
-     return b[2]/10.;
+ //     return b[2]/10.;
- }
+ // }
  //--------------------------------------
  //
  //

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