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// $Id$
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:  G4DipBustGenerator
//
// Author: Vladimir Grichine    
// Creation date: 17 May 2011
//
// Modifications: 
// 
//
// Bremsstrahlung Angular Distribution Generation 
// suggested the dipole approximation in the rest frame of electron 
// busted in the laboratory frame.
//
// -------------------------------------------------------------------
//

#ifndef G4DipBustGenerator_h
#define G4DipBustGenerator_h 1

#include "G4ios.hh"
#include "globals.hh"
#include "G4VEmAngularDistribution.hh"

class G4DipBustGenerator : public G4VEmAngularDistribution
{

public:

  G4DipBustGenerator(const G4String& name = "");

  virtual ~G4DipBustGenerator();

  virtual G4ThreeVector& SampleDirection(const G4DynamicParticle* dp,
                                         G4double out_energy,
                                         G4int Z,
                                         const G4Material* mat = 0);

  G4double PolarAngle(const G4double initial_energy,
		      const G4double final_energy,
		      const G4int Z);

  void PrintGeneratorInformation() const;

protected:

private:

  // hide assignment operator 
     G4DipBustGenerator & operator=(const  G4DipBustGenerator &right);
     G4DipBustGenerator(const  G4DipBustGenerator&);

};

#endif