Coding conventions

diff --git a/TOF/AliTOFpidESD.cxx b/TOF/AliTOFpidESD.cxx
index 2e6e94e0298c2eef903871081b71829bbf7610a0..4baf0838bfd9a4d5d637547017a71e9832076480 100644 (file)
--- a/TOF/AliTOFpidESD.cxx
+++ b/TOF/AliTOFpidESD.cxx
@@ -15,23 +15,12 @@
 
 //-----------------------------------------------------------------
 //           Implementation of the TOF PID class
-// Very naive one... Should be made better by the detector experts...
 //      Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
 //-----------------------------------------------------------------
-#include "TFile.h"
-#include "TTree.h"
-#include "TClonesArray.h"
 #include "TError.h"
-
 #include "AliTOFpidESD.h"
-#include "AliESD.h"
 #include "AliESDtrack.h"
-#include "AliTOFdigit.h"
-#include "AliTOFGeometry.h"
-#include <Riostream.h>
-
-#include <stdlib.h>
-
+#include "AliESD.h"
 
 ClassImp(AliTOFpidESD)
 
@@ -58,7 +47,6 @@ Int_t AliTOFpidESD::MakePID(AliESD *event)
     0.000511, 0.105658, 0.139570, 0.493677, 0.938272, 1.875613
   };
 
-  Int_t nPID=0;
   Int_t ntrk=event->GetNumberOfTracks();
   AliESDtrack **tracks=new AliESDtrack*[ntrk];
 
@@ -76,7 +64,6 @@ Int_t AliTOFpidESD::MakePID(AliESD *event)
     Double_t time[10]; t->GetIntegratedTimes(time);
     Double_t p[10];
     Double_t mom=t->GetP();
-    nPID++;
     for (Int_t j=0; j<AliESDtrack::kSPECIES; j++) {
       Double_t mass=kMasses[j];
       Double_t dpp=0.01;      //mean relative pt resolution;

diff --git a/TOF/AliTOFpidESD.h b/TOF/AliTOFpidESD.h
index 6563422075d73c6d237f74e5f69c9acaf21095cd..1fd17feb9f15bac8a5d0a465153909cd37ea7197 100644 (file)
--- a/TOF/AliTOFpidESD.h
+++ b/TOF/AliTOFpidESD.h
@@ -13,8 +13,6 @@
 
 class AliTOFGeometry;
 class AliESD;
-class TFile;
-class TTree;
 
 class AliTOFpidESD : public TObject {
 enum {kMaxCluster=77777}; //maximal number of the TOF clusters
@@ -38,5 +36,3 @@ private:
 };
 
 #endif
-
-

diff --git a/TOF/AliTOFtrack.cxx b/TOF/AliTOFtrack.cxx
index fff4383adc55125beefb75a06a8ecc01444edda6..046183913497d6740d7f2f90f551aa6f2dd845a7 100644 (file)
--- a/TOF/AliTOFtrack.cxx
+++ b/TOF/AliTOFtrack.cxx
@@ -12,12 +12,17 @@
  * about the suitability of this software for any purpose. It is          *
  * provided "as is" without express or implied warranty.                  *
  **************************************************************************/
-
+////////////////////////////////////////////////////////////////////////
+//
+// AliTOFtrack class
+//
+// Authors: Bologna-CERN-ITEP-Salerno Group
+//
+// Description: class for handling ESD extracted tracks for TOF matching.
 /* $Id$ */
 
 #include <Riostream.h>
 #include <TObject.h>   
-#include "AliTOFGeometry.h" 
 #include "AliTOFtrack.h" 
 #include "AliESDtrack.h" 
 
@@ -131,6 +136,9 @@ void AliTOFtrack::GetExternalCovariance(Double_t cc[15]) const {
 
 //_____________________________________________________________________________
 void AliTOFtrack::GetCovariance(Double_t cc[15]) const {
+  //
+  // Returns the covariance matrix.
+  //
 
   cc[0]=fCyy;
   cc[1]=fCzy;  cc[2]=fCzz;
@@ -260,32 +268,32 @@ Int_t AliTOFtrack::PropagateToInnerTOF( Bool_t holes)
 
   Double_t ymax=AliTOFGeometry::RinTOF()*TMath::Tan(0.5*AliTOFGeometry::GetAlpha());
   Bool_t skip = kFALSE;
-  Double_t y=this->GetYat(AliTOFGeometry::RinTOF(),skip);
+  Double_t y=GetYat(AliTOFGeometry::RinTOF(),skip);
   if(skip){
     return 0;
   }
   if (y > ymax) {
-    if (!this->Rotate(AliTOFGeometry::GetAlpha())) {
+    if (!Rotate(AliTOFGeometry::GetAlpha())) {
       return 0;
     }
   } else if (y <-ymax) {
-    if (!this->Rotate(-AliTOFGeometry::GetAlpha())) {
+    if (!Rotate(-AliTOFGeometry::GetAlpha())) {
       return 0;
     }
   }
   
   
-  Double_t x = this->GetX();
+  Double_t x = GetX();
   Int_t nsteps=Int_t((370.-x)/0.5); // 0.5 cm Steps
   for (Int_t istep=0;istep<nsteps;istep++){
     Float_t xp = x+istep*0.5; 
     Double_t param[2];  
-    this->GetPropagationParameters(holes,param);  
-    this->PropagateTo(xp,param[0],param[1]);
+    GetPropagationParameters(holes,param);  
+    PropagateTo(xp,param[0],param[1]);
     
   }
   
-  if(!this->PropagateTo(AliTOFGeometry::RinTOF()))return 0;
+  if(!PropagateTo(AliTOFGeometry::RinTOF()))return 0;
   
   return 1;
   
@@ -351,8 +359,18 @@ Int_t AliTOFtrack::Rotate(Double_t alpha)
   return 1;                            
 }                         
 
-
-
+//_________________________________________________________________________
+Double_t AliTOFtrack::GetYat(Double_t xk, Bool_t skip) const {     
+//-----------------------------------------------------------------
+// This function calculates the Y-coordinate of a track at the plane x=xk.
+// Needed for matching with the TOF (I.Belikov)
+//-----------------------------------------------------------------
+     skip=kFALSE;
+     Double_t c1=fC*fX - fE, r1=TMath::Sqrt(TMath::Abs(1.- c1*c1));
+     Double_t c2=fC*xk - fE, r2=TMath::Sqrt(TMath::Abs(1.- c2*c2));
+      if( ((1.- c2*c2)<0) || ((1.- c1*c1)<0) ) skip=kTRUE;
+      return fY + (xk-fX)*(c1+c2)/(r1+r2);
+}
 //_________________________________________________________________________
 void AliTOFtrack::GetPxPyPz(Double_t& px, Double_t& py, Double_t& pz) const
 {
@@ -431,6 +449,9 @@ Int_t AliTOFtrack::Compare(const TObject *o) const {
 //_____________________________________________________________________________
 void AliTOFtrack::GetPropagationParameters(Bool_t holes, Double_t *param) {
 
+ //Get average medium density, x0 while propagating the track
+
+  //For TRD holes description
 
   Double_t thetamin = (90.-31.1) * TMath::Pi()/180.;
   Double_t thetamax = (90.+31.1) * TMath::Pi()/180.;
@@ -438,10 +459,12 @@ void AliTOFtrack::GetPropagationParameters(Bool_t holes, Double_t *param) {
   Double_t zmin = -55.;
   Double_t zmax =  55.;
 
+  // Detector inner/outer radii
   Double_t rTPC    = 261.53;
   Double_t rTPCTRD = 294.5;
   Double_t rTRD    = 369.1;
 
+  // Medium parameters
   Double_t x0TPC = 40.;
   Double_t rhoTPC =0.06124;
 
@@ -451,9 +474,9 @@ void AliTOFtrack::GetPropagationParameters(Bool_t holes, Double_t *param) {
   Double_t x0TRD = 171.7;
   Double_t rhoTRD =0.33;
 
-  Int_t isec = this->GetSector();
+  Int_t isec = GetSector();
   Double_t xtr,ytr,ztr;
-  this->GetGlobalXYZ(xtr,ytr,ztr);
+  GetGlobalXYZ(xtr,ytr,ztr);
   Float_t thetatr = TMath::ATan2(TMath::Sqrt(xtr*xtr+ytr*ytr),ztr);
 
   if(holes){
@@ -471,13 +494,12 @@ void AliTOFtrack::GetPropagationParameters(Bool_t holes, Double_t *param) {
     }
   }
 
-  if(this->GetX() <= rTPC)
+  if(GetX() <= rTPC)
     {param[0]=x0TPC;param[1]=rhoTPC;}
-  else if(this->GetX() > rTPC &&  this->GetX() < rTPCTRD)
+  else if(GetX() > rTPC &&  GetX() < rTPCTRD)
     {param[0]=x0Air;param[1]=rhoAir;}
-  else if(this->GetX() >= rTPCTRD &&  this->GetX() < rTRD)
+  else if(GetX() >= rTPCTRD &&  GetX() < rTRD)
     {param[0]=x0TRD;param[1]=rhoTRD;}
-  else if(this->GetX() >= rTRD )
+  else if(GetX() >= rTRD )
     {param[0]=x0Air;param[1]=rhoAir;}
-
 }

diff --git a/TOF/AliTOFtrack.h b/TOF/AliTOFtrack.h
index bec3afe463a4e4344190bf9ea385a529d0d22e66..8de94e3942579409c3168bd7a8bc1bdf069bde43 100644 (file)
--- a/TOF/AliTOFtrack.h
+++ b/TOF/AliTOFtrack.h
@@ -1,6 +1,6 @@
 #ifndef ALITOFTRACK_H
 #define ALITOFTRACK_H
-
+// Description: class for handling ESD extracted tracks for TOF matching.
 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
  * See cxx source for full Copyright notice                               */
 
@@ -12,8 +12,6 @@
 class AliESDtrack;
 class AliTOFtrack : public AliKalmanTrack {
 
-// Represents reconstructed TOF track
-
 public:
 
    AliTOFtrack():AliKalmanTrack(){}
@@ -26,15 +24,15 @@ public:
      return Int_t(TVector2::Phi_0_2pi(fAlpha)/AliTOFGeometry::GetAlpha())%AliTOFGeometry::NSectors();}
 
    Double_t GetC()     const {return fC;}
-   void     GetCovariance(Double_t cov[15]) const;  
+   void     GetCovariance(Double_t cov[15]) const; // track covariance
    Double_t GetEta()   const {return fE;}
 
-   void     GetExternalCovariance(Double_t cov[15]) const ;   
-   void     GetExternalParameters(Double_t& xr, Double_t x[5]) const ;
+   void     GetExternalCovariance(Double_t cov[15]) const ;// track covariance
+   void     GetExternalParameters(Double_t& xr, Double_t x[5]) const ;//track parameters
    Double_t GetSigmaY2() const {return fCyy;}
    Double_t GetSigmaZ2() const {return fCzz;}
 
-   Double_t Get1Pt()   const {return (1e-9*TMath::Abs(fC)/fC + fC)*GetConvConst();}
+   Double_t Get1Pt()   const {return (1e-9*TMath::Abs(fC)/fC + fC)*GetConvConst();} 
    Double_t GetP()     const {  
      return TMath::Abs(GetPt())*sqrt(1.+GetTgl()*GetTgl());
    }
@@ -54,19 +52,7 @@ public:
    Int_t Compare(const TObject *o) const;
 
 
-   Double_t GetYat(Double_t xk, Bool_t skip) const {     
-//-----------------------------------------------------------------
-// This function calculates the Y-coordinate of a track at the plane x=xk.
-// Needed for matching with the TOF (I.Belikov)
-//-----------------------------------------------------------------
-     skip=kFALSE;
-     Double_t c1=fC*fX - fE, r1=TMath::Sqrt(TMath::Abs(1.- c1*c1));
-     Double_t c2=fC*xk - fE, r2=TMath::Sqrt(TMath::Abs(1.- c2*c2));
-      if( ((1.- c2*c2)<0) || ((1.- c1*c1)<0) ) skip=kTRUE;
-      return fY + (xk-fX)*(c1+c2)/(r1+r2);
-   }
-
-
+   Double_t GetYat(Double_t xk, Bool_t skip) const;      
    Int_t    PropagateTo(Double_t xr, Double_t x0=8.72, Double_t rho=5.86e-3);
    Int_t    PropagateToInnerTOF(Bool_t holes);
    void     ResetCovariance();   
@@ -103,4 +89,4 @@ protected:
 
 };                     
 
-#endif   
+#endif