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

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

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-revision 1.10 by pam-fi,
Thu Sep 28 14:04:39 2006 UTC
+revision 1.18 by pam-fi,
Tue Nov 14 16:28:42 2006 UTC
 Line 4
   */
  #include <TrkLevel2.h>
  #include <iostream>
+ #include <math.h>
  using namespace std;
  //......................................
  // F77 routines
-Line 11 
 using namespace std;
+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*);
-     int  readb_(const char*);
+ //    int  readb_(const char*);
+     int  readb_();
+     void mini2_(int*,int*,int*);
+     void guess_();
  }
  //--------------------------------------
  //
  //
  //--------------------------------------
+ /**
+  * Evaluates the trajectory in the apparatus associated to the track.
+  * It integrates the equations of motion in the magnetic field. The magnetic field should be previously loaded ( by calling  TrkLevel2::LoadField() ), otherwise an error message is returned.
+  * @param t pointer to an object of the class Trajectory,
+  * which z coordinates should be previously initialized by calling the proper constructor ( Trajectory::Trajectory(int n, float* zin) ).
+  * @return error flag.
+  */
+ int Trajectory::DoTrack2(float* al){
+     double *dxout   = new double[npoint];
+     double *dyout   = new double[npoint];
+     double *dthxout = new double[npoint];
+     double *dthyout = new double[npoint];
+     double *dtlout  = new double[npoint];
+     double *dzin    = new double[npoint];
+     double dal[5];
+     int ifail = 0;
+     for (int i=0; i<5; i++)      dal[i]  = (double)al[i];
+     for (int i=0; i<npoint; i++) dzin[i] = (double)z[i];
+     dotrack2_(&(npoint),dzin,dxout,dyout,dthxout,dthyout,dtlout,dal,&ifail);
+     for (int i=0; i<npoint; i++){
+         x[i]   = (float)*dxout++;
+         y[i]   = (float)*dyout++;
+         thx[i] = (float)*dthxout++;
+         thy[i] = (float)*dthyout++;
+         tl[i]  = (float)*dtlout++;
+     }
+     return ifail;
+ };
+ //---------------------------------------------
+ //---------------------------------------------
  TrkTrack::TrkTrack(){
      seqno = -1;
      image = -1;
      chi2  = 0;
-         nstep = 0;
+     nstep = 0;
-         for(int it1=0;it1<5;it1++){
+     for(int it1=0;it1<5;it1++){
-                 al[it1] = 0;
+         al[it1] = 0;
-                 for(int it2=0;it2<5;it2++)coval[it1][it2] = 0;
+         for(int it2=0;it2<5;it2++)coval[it1][it2] = 0;
      };
      for(int ip=0;ip<6;ip++){
                  xgood[ip]  = 0;
-Line 55 
 TrkTrack::TrkTrack(const TrkTrack& t){
+Line 95 
 TrkTrack::TrkTrack(const TrkTrack& t){
      seqno = t.seqno;
      image = t.image;
      chi2  = t.chi2;
-         nstep = t.nstep;
+     nstep = t.nstep;
-         for(int it1=0;it1<5;it1++){
+     for(int it1=0;it1<5;it1++){
-                 al[it1] = t.al[it1];
+         al[it1] = t.al[it1];
-                 for(int it2=0;it2<5;it2++)coval[it1][it2] = t.coval[it1][it2];
+         for(int it2=0;it2<5;it2++)coval[it1][it2] = t.coval[it1][it2];
      };
      for(int ip=0;ip<6;ip++){
                  xgood[ip]  = t.xgood[ip];
-Line 196 
 Float_t TrkTrack::GetDEDX(){
+Line 236 
 Float_t TrkTrack::GetDEDX(){
  //--------------------------------------
  void TrkTrack::Dump(){
      cout << endl << "========== Track " ;
-         cout << endl << "seq.  n. : "<< seqno;
+     cout << endl << "seq.  n. : "<< seqno;
-         cout << endl << "image n. : "<< image;
+     cout << endl << "image n. : "<< image;
-         cout << endl << "al       : "; for(int i=0; i<5; i++)cout << al[i] << " ";
+     cout << endl << "al       : "; for(int i=0; i<5; i++)cout << al[i] << " ";
      cout << endl << "chi^2    : "<< chi2;
-         cout << endl << "n.step   : "<< nstep;
+     cout << endl << "n.step   : "<< nstep;
-         cout << endl << "xgood    : "; for(int i=0; i<6; i++)cout << xgood[i] ;
+     cout << endl << "xgood    : "; for(int i=0; i<6; i++)cout << xgood[i] ;
      cout << endl << "ygood    : "; for(int i=0; i<6; i++)cout << ygood[i] ;
      cout << endl << "xm       : "; for(int i=0; i<6; i++)cout << xm[i] << " ";
      cout << endl << "ym       : "; for(int i=0; i<6; i++)cout << ym[i] << " ";
      cout << endl << "zm       : "; for(int i=0; i<6; i++)cout << zm[i] << " ";
+     cout << endl << "xv       : "; for(int i=0; i<6; i++)cout << xv[i] << " ";
+     cout << endl << "yv       : "; for(int i=0; i<6; i++)cout << yv[i] << " ";
+     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 << "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]<<" ";
+     cout << endl << "           "; for(int i=0; i<5; i++)cout << coval[3][i]<<" ";
+     cout << endl << "           "; for(int i=0; i<5; i++)cout << coval[4][i]<<" ";
      cout << endl << "dedx_x   : "; for(int i=0; i<6; i++)cout << dedx_x[i] << " ";
      cout << endl << "dedx_y   : "; for(int i=0; i<6; i++)cout << dedx_y[i] << " ";
+     cout << endl;
+ }
+ /**
+  * Set the TrkTrack position measurements
+  */
+ void TrkTrack::SetMeasure(double *xmeas, double *ymeas, double *zmeas){
+     for(int i=0; i<6; i++) xm[i]=*xmeas++;
+     for(int i=0; i<6; i++) ym[i]=*ymeas++;
+     for(int i=0; i<6; i++) zm[i]=*zmeas++;
+ }
+ /**
+  * Set the TrkTrack position resolution
+  */
+ void TrkTrack::SetResolution(double *rx, double *ry){
+     for(int i=0; i<6; i++) resx[i]=*rx++;
+     for(int i=0; i<6; i++) resy[i]=*ry++;
+ }
+ /**
+  * Set the TrkTrack good measurement
+  */
+ void TrkTrack::SetGood(int *xg, int *yg){
+     for(int i=0; i<6; i++) xgood[i]=*xg++;
+     for(int i=0; i<6; i++) ygood[i]=*yg++;
+ }
+ /**
+  * Load the magnetic field
+  */
+ void TrkTrack::LoadField(TString path){
+     strcpy(path_.path,path.Data());
+     path_.pathlen = path.Length();
+     path_.error   = 0;
+     readb_();
+ };
+ /**
+  * Tracking method. It calls F77 mini routine.
+  */
+ void TrkTrack::Fit(double pfixed, int& fail, int iprint){
+     float al_ini[] = {0.,0.,0.,0.,0.};
+     extern cMini2track track_;
+     fail = 0;
+     for(int i=0; i<6; i++) track_.xm[i]=xm[i];
+     for(int i=0; i<6; i++) track_.ym[i]=ym[i];
+     for(int i=0; i<6; i++) track_.zm[i]=zm[i];
+     for(int i=0; i<6; i++) track_.resx[i]=resx[i];
+     for(int i=0; i<6; i++) track_.resy[i]=resy[i];
+     for(int i=0; i<6; i++) track_.xgood[i]=xgood[i];
+     for(int i=0; i<6; i++) track_.ygood[i]=ygood[i];
+ // initial guess of "al" with linear fit
+ //     if(al[0]==-9999.&&al[1]==-9999.&&al[2]==-9999.&&al[3]==-9999.&&al[4]==-9999.){
+ //      cout << "initial guess "<<endl;
+ //      double szz=0., szx=0., szy=0., ssx=0., ssy=0., sz=0., s1=0.;
+ //      double det, ax, ay, bx, by;
+ //      for(int i=0; i<NPLANE; i++) {
+ //          szz=szz+zm[i]*zm[i];
+ //          szx=szx+zm[i]*xm[i];
+ //          szy=szy+zm[i]*ym[i];
+ //          ssx=ssx+xm[i];
+ //          ssy=ssy+ym[i];
+ //          sz=sz+zm[i];
+ //          s1=s1+1.;
+ //      }
+ //      det=szz*s1-sz*sz;
+ //      ax=(szx*s1-sz*ssx)/det;
+ //      bx=(szz*ssx-szx*sz)/det;
+ //      ay=(szy*s1-sz*ssy)/det;
+ //      by=(szz*ssy-szy*sz)/det;
+ //      al[0]=ax*23.5+bx; // ZINI = 23.5 !!! it should be the same parameter in all codes
+ //      al[1]=ay*23.5+by; //  "
+ //      al[2]= sqrt(pow(ax,2)+pow(ay,2))/ sqrt(pow(ax,2)+pow(ay,2)+1.);
+ //      al[3]=0.;
+ //      if( (ax!=0.)||(ay!=0.) ) {
+ //          al[3]= asin(ay/ sqrt(pow(ax,2)+pow(ay,2)));
+ //          if(ax<0.) al[3]=acos(-1.)-al[3];
+ //      }
+ //      al[4]=0.;
+ //     }
+ // end guess
+     for(int i=0; i<5; i++) track_.al[i]=al[i];
+     track_.zini = 23.5;
+ // ZINI = 23.5 !!! it should be the same parameter in all codes
+     if(al[0]==-9999.&&al[1]==-9999.&&al[2]==-9999.&&al[3]==-9999.&&al[4]==-9999.)guess_();
+     // --------------------- free momentum
+     if(pfixed==0.) {
+ //      al[4]=0.;         // free momentum
+         track_.pfixed=0.; //         "
+     }
+     // --------------------- fixed momentum
+     if(pfixed!=0.) {
+         al[4]=1./pfixed;      // to fix the momentum
+         track_.pfixed=pfixed; //         "
+     }
+ //  store temporarily the initial guess
+     for(int i=0; i<5; i++) al_ini[i]=track_.al[i];
+     int istep=0;
+     int ifail=0;
+     mini2_(&istep,&ifail, &iprint);
+     if(ifail!=0) {
+         if(iprint==1)cout << "ERROR: ifail= " << ifail << endl;
+         fail = 1;
+ //      return;
+     }
+ //    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){
+         cout << " >>>> fit failed >>>> drawing initial par"<<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++) yv[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++) ayv[i]=0.;
+     for(int i=0; i<5; i++) {
+         for(int j=0; j<5; j++) coval[i][j]=0.;
+     }
  }
  //--------------------------------------
  //
  //
-Line 247 
 void TrkTrack::Clear(){
+Line 449 
 void TrkTrack::Clear(){
  //
  //
  //--------------------------------------
+ void TrkTrack::Delete(){
+         Clear();
+         clx->Delete();
+         cly->Delete();
+ };
+         //--------------------------------------
+ //
+ //
+ //--------------------------------------
  //--------------------------------------
  //
-Line 569 
 void TrkLevel2::Clear(){
+Line 780 
 void TrkLevel2::Clear(){
  //
  //
  //--------------------------------------
+ void TrkLevel2::Delete(){
+         Clear();
+         Track->Delete();
+         SingletX->Delete();
+         SingletY->Delete();
+ }
+ //--------------------------------------
+ //
+ //
+ //--------------------------------------
  /**
   * Sort physical tracks and stores them in a TObjectArray, ordering by increasing chi**2 value (in case of track image, it selects the one with lower chi**2). 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).
   * This method is overridden by PamLevel2::GetTracks(), where calorimeter and TOF information is used.
-Line 712 
 Int_t TrkLevel2::GetNTracks(){
+Line 934 
 Int_t TrkLevel2::GetNTracks(){
          Float_t ntot=0;
          TClonesArray &t = *Track;
          for(int i=0; i<ntrk(); i++) {
                  if( ((TrkTrack *)t[i])->GetImageSeqNo() == -1 ) ntot+=1.;
                  else ntot+=0.5;
          }
-Line 757 
 TrkTrack *TrkLevel2::GetTrackImage(int i
+Line 979 
 TrkTrack *TrkLevel2::GetTrackImage(int i
   * Loads the magnetic field.
   * @param s Path of the magnetic-field files.
   */
- void TrkLevel2::LoadField(TString s){
+ void TrkLevel2::LoadField(TString path){
-     readb_(s.Data());
+ //
+     strcpy(path_.path,path.Data());
+     path_.pathlen = path.Length();
+     path_.error   = 0;
+     readb_();
+ //
  };
  //--------------------------------------
  //

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