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// $Id: G4PSSphereSurfaceFlux.hh,v 1.3 2010-07-22 23:42:01 taso Exp $
// GEANT4 tag $Name: not supported by cvs2svn $
//

#ifndef G4PSSphereSurfaceFlux_h
#define G4PSSphereSurfaceFlux_h 1

#include "G4VPrimitiveScorer.hh"
#include "G4THitsMap.hh"

#include "G4Sphere.hh"
#include "G4PSDirectionFlag.hh"
////////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring Surface Flux.
//  Flux version assumes only for G4Sphere shape, and the surface
//  is defined at the inside of the sphere.
//   The current is given in the unit of area. 
//    e.g.  (Number of tracks)/mm2.
//
// Surface is defined  at the inside of sphere.
// Direction                  -Rmin   +Rmax
//   0  IN || OUT            ->|<-     |      fFlux_InOut
//   1  IN                   ->|       |      fFlux_In
//   2  OUT                    |<-     |      fFlux_Out
//
// Created: 2005-11-14  Tsukasa ASO, Akinori Kimura.
//   17-Nov-2005 Bug fix. square definition.
// 29-Mar-2007  T.Aso,  Bug fix for momentum direction for out-going flux.
// 2010-07-22   Introduce Unit specification.
// 2010-07-22   Add weighted and divideByArea options
// 
///////////////////////////////////////////////////////////////////////////////

class G4PSSphereSurfaceFlux : public G4VPrimitiveScorer
{
 
  public: // with description
      G4PSSphereSurfaceFlux(G4String name, G4int direction, G4int depth=0);
      G4PSSphereSurfaceFlux(G4String name, G4int direction, 
			    const G4String& unit, G4int depth=0);
      virtual ~G4PSSphereSurfaceFlux();

      inline void Weighted(G4bool flg=true) { weighted = flg; }
      // Multiply track weight

      inline void DivideByArea(G4bool flg=true) { divideByArea = flg; }
      // Divided by Area.

  protected: // with description
      virtual G4bool ProcessHits(G4Step*,G4TouchableHistory*);
      G4int IsSelectedSurface(G4Step*,G4Sphere*);

  public: 
      virtual void Initialize(G4HCofThisEvent*);
      virtual void EndOfEvent(G4HCofThisEvent*);
      virtual void clear();
      virtual void DrawAll();
      virtual void PrintAll();

      virtual void SetUnit(const G4String& unit);

  protected:
      virtual void DefineUnitAndCategory();

  private:
      G4int  HCID;
      G4int  fDirection;
      G4THitsMap<G4double>* EvtMap;
      G4bool weighted;
      G4bool divideByArea;
};

#endif