G4VTrajectoryPoint.hh

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//
// G4VTrajectoryPoint
//
// Class description:
//
// This class is the abstract base class representing the point
// forming a trajectory. It includes information of a the point.
 
// Contact:
//   Questions and comments to this code should be sent to
//     Katsuya Amako  (e-mail: Katsuya.Amako@kek.jp)
//     Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
// --------------------------------------------------------------------
#ifndef G4VTrajectoryPoint_hh
#define G4VTrajectoryPoint_hh 1
 
#include <vector>
#include <map>
 
#include "globals.hh"
#include "G4ThreeVector.hh"
 
class G4AttDef;
class G4AttValue;
 
class G4VTrajectoryPoint
{
  public:
 
    G4VTrajectoryPoint();
    virtual ~G4VTrajectoryPoint();
      // Constructor/Destructor
 
    G4bool operator==(const G4VTrajectoryPoint& right) const;
      // Equality operator
 
    virtual const G4ThreeVector GetPosition() const = 0;
      // Return point position
 
    virtual const std::vector<G4ThreeVector>* GetAuxiliaryPoints() const
      { return nullptr; }
      // Get method for a vector of auxiliary points.
      // If implemented by a derived class, returns a pointer to a list
      // of auxiliary points, e.g., intermediate points used during the
      // calculation of the step that can be used for drawing a smoother
      // trajectory. The user must test the validity of this pointer
 
    virtual const std::map<G4String,G4AttDef>* GetAttDefs() const
      { return nullptr; }
      // Get method for HEPRep style attribute definitions.
      // If implemented by a derived class, returns a pointer to a map of
      // attribute definitions for the attribute values below. The user
      // must test the validity of this pointer. See G4Trajectory for an
      // example of a concrete implementation of this method
 
    virtual std::vector<G4AttValue>* CreateAttValues() const
      { return nullptr; }
      // Get method for HEPRep style attribute values.
      // If implemented by a derived class, returns a pointer to a list
      // of attribute values suitable, e.g., for picking. Each must
      // refer to an attribute definition in the above map; its name is
      // the key. The user must test the validity of this pointer (it
      // must be non-zero and conform to the G4AttDefs, which may be
      // checked with G4AttCheck) and delete the list after use. See
      // G4Trajectory for an example of a concrete implementation of this
      // method and G4VTrajectory::ShowTrajectory() for an example of its use.
};
 
#endif