class AliITStrackerSA: public AliITStrackerMI

 Default constructor

 Standard constructor (Vertex is known and passed to this obj.)

 destructor

 This method is used to find and fit the tracks. By default the corresponding
 method in the parent class is invoked. In this way a combined tracking
 TPC+ITS is performed. If the flag fITSStandAlone is true, the tracking
 is done in the ITS only. In the standard reconstruction chain this option
 can be set via AliReconstruction::SetOption("ITS","onlyITS")

  Reset all data members

  Reset data members used in all loops during track finding

fit of the found track (most general case, also <6 points, layers missing)
 A.Dainese 16.11.07

 Add new track to the ESD

function used to to find the clusters associated to the track

 Sets the first point (seed) for tracking

update of points for the estimation of the curvature

calculates the curvature of track

 returns track with lowest chi square

 compute the track label starting from cluster labels

 Set sizes of the phi and lambda windows used for track finding

 Set sizes of the phi and lambda windows used for track finding

Returns values of phi (azimuthal) and lambda angles for a given cluster

  Double_t rot[9];     fGeom->GetRotMatrix(module,rot);
  Int_t lay,lad,det; fGeom->GetModuleId(module,lay,lad,det);
  Double_t tx,ty,tz;  fGeom->GetTrans(lay,lad,det,tx,ty,tz);

  Double_t alpha=TMath::ATan2(rot[1],rot[0])+TMath::Pi();
  Double_t phi1=TMath::Pi()/2+alpha;
  if (lay==1) phi1+=TMath::Pi();

  Double_t cp=TMath::Cos(phi1), sp=TMath::Sin(phi1);
  Double_t r=tx*cp+ty*sp;

  xyz= r*cp - cl->GetY()*sp;
  y= r*sp + cl->GetY()*cp;
  z=cl->GetZ();

 Find the cluster at limit of lambda window