G4TrajectoryDrawByCharge.hh

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// $Id$
//
// Jane Tinslay, John Allison, Joseph Perl November 2005
//
// Class Description:
// Trajectory model which colours a trajectory according to  
// charge. 
// Class Description - End:

#ifndef G4TRAJECTORYDRAWBYCHARGE_HH
#define G4TRAJECTORYDRAWBYCHARGE_HH

#include "G4Colour.hh"
#include "G4ModelColourMap.hh"
#include "G4VTrajectoryModel.hh"
#include <map>

class G4TrajectoryDrawByCharge : public G4VTrajectoryModel {

public: // With description
 
  enum Charge {Negative=-1, Neutral=0, Positive=1}; 

  G4TrajectoryDrawByCharge(const G4String& name = "Unspecified", G4VisTrajContext* context=0);

  G4TrajectoryDrawByCharge(const G4String& name,
                           const G4Colour& positive,
                           const G4Colour& negative,
                           const G4Colour& neutral);
  
  virtual ~G4TrajectoryDrawByCharge();

  // Draw method
  virtual void Draw(const G4VTrajectory& trajectory, const G4int& i_mode = 0,
                    const G4bool& visible = true) const;
  virtual void Draw(const G4VTrajectory& trajectory, 
                    const G4bool& visible = true) const;

  // Print configuration
  virtual void Print(std::ostream& ostr) const;

  void Set(const Charge& charge, const G4Colour& colour);
  void Set(const Charge& charge, const G4String& colour);

  void Set(const G4String& charge, const G4Colour& colour);
  void Set(const G4String& charge, const G4String& colour);
  // Configuration functions 

private:
  
  G4bool ConvertToCharge(const G4String&, Charge&);

  // Data member
  G4ModelColourMap<Charge> fMap;
  
};

#endif

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