EvtEulerAngles.hh

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//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of models developed at BES collaboration
//      based on the EvtGen framework.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/BesCopyright
//      Copyright (A) 2006      Ping Rong-Gang @IHEP
//
// Module:  EvtDIY.cc
//
// Description:  Class to calculate the Euler angles to rotate a system
//
// Modification history:
//
//    Ping R.-G.       December, 2007       Module created
//
//------------------------------------------------------------------------
//
#ifndef EVTEULERANGLES_HH
#define EVTEULERANGLES_HH
 
#include <iostream>
// #include <math.h>
#include "EvtVector3R.hh"
#include "EvtVector4R.hh"
 
// using std::endl;
// using std::fstream;
 
class EvtEulerAngles {
 
public:
  // destructor
  virtual ~EvtEulerAngles();
 
  // constructor
  EvtEulerAngles();
  EvtEulerAngles( const EvtVector3R& Yaxis, const EvtVector3R& Zaxis );
  EvtEulerAngles( const EvtVector4R& Pyaxis, const EvtVector4R& Pzaxis );
  void   EulerAngles();
  double getAlpha();
  double getBeta();
  double getGamma();
 
private:
  EvtVector3R _Yaxis, _Zaxis;
  double      _alpha, _beta, _gamma, _ry, _rz;
};
 
#endif