ITS/AnalysisITSAlignment.h

   1 #ifndef ALIGNITS_H
   2 #define ALIGNITS_H
   3 //////////////////////////////////////////////////////////////////////////
   4 //  Alice ITS first detector alignment program.                         //
   5 //                                                                      //
   6 // version: 0.0.0 Draft.                                                //
   7 // Date: April 18 1999                                                  //
   8 // By: Bjorn S. Nilsen                                                  //
   9 //                                                                      //
  10 //////////////////////////////////////////////////////////////////////////
  11 #include "AliITS.h"
  12 #include "TTree.h"
  13 #include "TClonesArray.h"
  14 #include "AliRun.h"
  15 #include "AliITSAlignmentTrack.h"
  16
  17 // Data structure to hold averaged clusts.
  18 struct ClustAl_sl{
  19     Int_t lay,lad,det;
  20     Float_t xg,yg,zg,xl,yl,zl;
  21 };
  22 struct ClustAl_tl{
  23     Int_t    track,nclust;  // track number and number of data points.
  24     ClustAl_sl *clust;        // data points to fit.
  25     Float_t  a,b,c,d,a0,b0,c0,d0,qual;  // fit parameters and fit quality.
  26     Float_t  px,py,pz,p,pt;
  27     // x=a+b*z and y=c+d*z;
  28     // x=a0+b0*y and z=c0+d0*y in coordinate system of clust[0].lay,lad,det
  29 };
  30
  31 void HitsTo(ClustAl_tl *trk,Int_t &ntrk,Int_t,TTree *TH,AliITS *ITS,
  32             Float_t nsigmaT1,Float_t nsigmaT2,Float_t nsigmaT3,
  33             Float_t nsigmaR1,Float_t nsigmaR2,Float_t nsigmaR3);
  34 void HitsToClustAl(ClustAl_tl *trk,Int_t &ntrk,Int_t nt,TTree *TH,
  35                    AliITS *ITS,Float_t fraction);
  36 void PlotGeomChanges(AliITSgeom *gt,AliITSgeom *gc,TFile *Hfile,Float_t *Rdta);
  37 void FillGlobalPositions(ClustAl_tl *trk,Int_t ntrk,AliITSgeom *g);
  38 void FitAllTracks(ClustAl_tl *trk,Int_t ntrk,Float_t *v0,AliITSgeom *gm,
  39                   const char *sfile,TFile *Hfile,Float_t *Fdta,Int_t *Ndta);
  40 void FitVertexAll(ClustAl_tl *trk,Int_t ntrk,const char *sfile,TFile *Hfile);
  41 void OnlyOneGeometry(char *filename,AliITSgeom *gm,AliITSgeom &gm2,
  42                      Float_t trans[],Float_t rot[]);
  43 void deleteClustAl(ClustAl_tl *trk,Int_t ntrk);
  44 void FillAliITSAlignmentTrack(AliITSAlignmentTrack *trk,Int_t &ntrk,Int_t nt,
  45                               TTree *TH,AliITS *ITS,Float_t fraction);
  46 void RunAlignment(Int_t evnt,Float_t fraction);
  47
  48 #endif