added the HCAL section

[u/mrichter/AliRoot.git] / STEER / AliKalmanTrack.cxx

diff --git a/STEER/AliKalmanTrack.cxx b/STEER/AliKalmanTrack.cxx
index ee4400de1b18d5d4092dadbc30134af3454605cb..fa554a25655b28c955b64144a348905bd56c7047 100644 (file)
--- a/STEER/AliKalmanTrack.cxx
+++ b/STEER/AliKalmanTrack.cxx
@@ -20,74 +20,32 @@
 //-------------------------------------------------------------------------
 
 #include "AliKalmanTrack.h"
-#include "AliCluster.h"
-#include <TMath.h>
-#include <iostream.h>
 
 ClassImp(AliKalmanTrack)
 
-//_____________________________________________________________________________
-AliKalmanTrack::AliKalmanTrack(const AliKalmanTrack& t) {
-  //-----------------------------------------------------------------
-  // This is a copy constructor.
-  //-----------------------------------------------------------------
-  fLab=t.fLab;
+Double_t AliKalmanTrack::fConvConst;
 
-  fP0=t.fP0; fP1=t.fP1; fP2=t.fP2; fP3=t.fP3; fP4=t.fP4;
-
-  fC00=t.fC00;
-  fC10=t.fC10;  fC11=t.fC11;
-  fC20=t.fC20;  fC21=t.fC21;  fC22=t.fC22;
-  fC30=t.fC30;  fC31=t.fC31;  fC32=t.fC32;  fC33=t.fC33;
-  fC40=t.fC40;  fC41=t.fC41;  fC42=t.fC42;  fC43=t.fC43;  fC44=t.fC44;
-
-  fChi2=t.fChi2;
-  fN=t.fN;
-}
-
-//_____________________________________________________________________________
-Int_t AliKalmanTrack::Compare(TObject *o) {
-  //-----------------------------------------------------------------
-  // This function compares tracks according to the their curvature
-  //-----------------------------------------------------------------
-  AliKalmanTrack *t=(AliKalmanTrack*)o;
-  Double_t co=TMath::Abs(t->GetPt());
-  Double_t c =TMath::Abs(GetPt());
-  if (c<co) return 1;
-  else if (c>co) return -1;
-  return 0;
-}
-
-//_____________________________________________________________________________
-Double_t AliKalmanTrack::GetPredictedChi2(const AliCluster *c) const 
+//_______________________________________________________________________
+AliKalmanTrack::AliKalmanTrack():
+  fLab(-3141593),
+  fChi2(0),
+  fMass(0.13957),
+  fN(0)
 {
-  //-----------------------------------------------------------------
-  // This function calculates a predicted chi2 increment.
-  //-----------------------------------------------------------------
-  Double_t r00=c->GetSigmaY2(), r01=0., r11=c->GetSigmaZ2();
-  r00+=fC00; r01+=fC10; r11+=fC11;
-
-  Double_t det=r00*r11 - r01*r01;
-  if (TMath::Abs(det) < 1.e-10) {
-    if (fN>4) cerr<<fN<<" AliKalmanTrack warning: Singular matrix !\n";
-    return 1e10;
-  }
-  Double_t tmp=r00; r00=r11; r11=tmp; r01=-r01;
-  
-  Double_t dy=c->GetY() - fP0, dz=c->GetZ() - fP1;
-  
-  return (dy*r00*dy + 2*r01*dy*dz + dz*r11*dz)/det;
+    if (fConvConst==0) 
+      Fatal("AliKalmanTrack()","The magnetic field has not been set !\n"); 
 }
 
-//_____________________________________________________________________________
-void AliKalmanTrack::GetCovariance(Double_t cc[15]) const {
-  // return covariance maxtrix
-  cc[0 ]=fC00;
-  cc[1 ]=fC10;  cc[2 ]=fC11;
-  cc[3 ]=fC20;  cc[4 ]=fC21;  cc[5 ]=fC22;
-  cc[6 ]=fC30;  cc[7 ]=fC31;  cc[8 ]=fC32;  cc[9 ]=fC33;
-  cc[10]=fC40;  cc[11]=fC41;  cc[12]=fC42;  cc[13]=fC43;  cc[14]=fC44;
+//_______________________________________________________________________
+AliKalmanTrack::AliKalmanTrack(const AliKalmanTrack &t):
+  TObject(t),
+  fLab(t.fLab),
+  fChi2(t.fChi2),
+  fMass(t.fMass),
+  fN(t.fN)
+{
+  if (fConvConst==0) 
+    Fatal("AliKalmanTrack(const AliKalmanTrack&)",
+          "The magnetic field has not been set !\n"); 
 }
 
-
-