21-jun-2005 NvE Install scripts for gcc corrected to also include the rdmc stuff

[u/mrichter/AliRoot.git] / RALICE / AliBoost.h

diff --git a/RALICE/AliBoost.h b/RALICE/AliBoost.h
index 8d2d7ae7a4141b99963e32aa6e5751278ab0e8ad..e23f9351214596d2beda2d685f67873bc5b218f9 100644 (file)
--- a/RALICE/AliBoost.h
+++ b/RALICE/AliBoost.h
@@ -1,48 +1,10 @@
 #ifndef ALIBOOST_H
 #define ALIBOOST_H
-///////////////////////////////////////////////////////////////////////////
-// Class AliBoost
-// Perform various Lorentz transformations.
-//
-// Example :
-// =========
-//
-// Float_t a[3]={0.1,0.2,0.3};
-// Ali3Vector beta;
-// beta.SetVector(a,"car");
-//
-// AliBoost b1;
-// b1.SetBeta(beta);
-// cout << " Boost b1 :" << endl;
-// b1.Info();
-//
-// Float_t b[4]={14,1,2,3};
-// Ali4Vector p;
-// p.SetVector(b,"car");
-// Ali4Vector pprim=b1.Boost(p);
-// cout << " Boost b1 result p,pprim :" << endl;
-// p.Info();
-// pprim.Info();
-//
-// p=b1.Inverse(pprim);
-// cout << " Inverse b1 result pprim,p :" << endl;
-// pprim.Info();
-// p.Info();
-//
-// Float_t c[4]={5,0,0,4};
-// Ali4Vector q;
-// q.SetVector(c,"car");
-//
-// AliBoost b2;
-// b2.Set4Momentum(q);
-// cout << " Lorbo b2 : " << endl;
-// b2.Info("sph");
-//
-//--- NvE 14-may-1996 UU-SAP Utrecht
-//--- Modified : NvE 01-apr-1999 UU-SAP Utrecht using Ali3Vector/Ali4Vector
-///////////////////////////////////////////////////////////////////////////
- 
-#include <iostream.h>
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice                               */
+
+// $Id$
+
 #include <math.h>
  
 #include "TObject.h"
@@ -53,22 +15,24 @@ class AliBoost : public TObject
 {
  public:
   AliBoost();                             // Default constructor
-  ~AliBoost();                            // Default destructor
-  void SetBeta(Ali3Vector b);             // Set boost parameters by beta 3-vector
-  void SetGamma(Double_t g,Ali3Vector v); // Set boost parameters by gamma and direction 3-vector
+  virtual ~AliBoost();                    // Default destructor
+  AliBoost(const AliBoost& b);            // Copy constructor
+  void SetBeta(Ali3Vector& b);            // Set boost parameters by beta 3-vector
   void Set4Momentum(Ali4Vector& p);       // Set boost parameters by 4-momentum
-  Ali3Vector GetBetaVector();             // Provide the beta 3-vector
+  Ali3Vector GetBetaVector() const;       // Provide the beta 3-vector
   Double_t GetBeta();                     // Provide norm of beta 3-vector
   Double_t GetGamma();                    // Provide gamma value
-  void Info(TString f="car");             // Print boost parameter info in coord. frame f
+  void Data(TString f="car");             // Print boost parameter info in coord. frame f
   Ali4Vector Boost(Ali4Vector& v);        // Perform Lorentz boost on 4-vector v
   Ali4Vector Inverse(Ali4Vector& v);      // Perform inverse Lorentz boost on 4-vector v
+  Double_t GetResultError() const;        // Provide error on scalar result
  
  protected:
-  Ali3Vector fBeta; // The beta 3-vector
-  Double_t fBeta2;  // beta**2
-  Double_t fGamma;  // The gamma factor
+  Ali3Vector fBeta;  // The beta 3-vector
+  Double_t fGamma;   // The gamma factor
+  Double_t fDgamma;  // Error on the gamma value
+  Double_t fDresult; // Error on scalar result
  
- ClassDef(AliBoost,1) // Class definition to enable ROOT I/O
+ ClassDef(AliBoost,4) // Perform various Lorentz transformations.
 };
 #endif