include/Geant4/G4VTrajectoryPoint.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
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0025 //
0026 // G4VTrajectoryPoint
0027 //
0028 // Class description:
0029 //
0030 // This class is the abstract base class representing the point
0031 // forming a trajectory. It includes information of a the point.
0032
0033 // Contact:
0034 //   Questions and comments to this code should be sent to
0035 //     Katsuya Amako  (e-mail: Katsuya.Amako@kek.jp)
0036 //     Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
0037 // --------------------------------------------------------------------
0038 #ifndef G4VTrajectoryPoint_hh
0039 #define G4VTrajectoryPoint_hh 1
0040
0041 #include "G4ThreeVector.hh"
0042 #include "globals.hh"
0043
0044 #include <map>
0045 #include <vector>
0046
0047 class G4AttDef;
0048 class G4AttValue;
0049
0050 class G4VTrajectoryPoint
0051 {
0052  public:
0053   // Constructor/Destructor
0054   G4VTrajectoryPoint() = default;
0055   virtual ~G4VTrajectoryPoint() = default;
0056
0057   // Equality operator
0058   G4bool operator==(const G4VTrajectoryPoint& right) const { return (this == &right); }
0059
0060   // Return point position
0061   virtual const G4ThreeVector GetPosition() const = 0;
0062
0063   // Get method for a vector of auxiliary points.
0064   // If implemented by a derived class, returns a pointer to a list
0065   // of auxiliary points, e.g., intermediate points used during the
0066   // calculation of the step that can be used for drawing a smoother
0067   // trajectory. The user must test the validity of this pointer
0068   virtual const std::vector<G4ThreeVector>* GetAuxiliaryPoints() const { return nullptr; }
0069
0070   // Get method for HEPRep style attribute definitions.
0071   // If implemented by a derived class, returns a pointer to a map of
0072   // attribute definitions for the attribute values below. The user
0073   // must test the validity of this pointer. See G4Trajectory for an
0074   // example of a concrete implementation of this method
0075   virtual const std::map<G4String, G4AttDef>* GetAttDefs() const { return nullptr; }
0076
0077   // Get method for HEPRep style attribute values.
0078   // If implemented by a derived class, returns a pointer to a list
0079   // of attribute values suitable, e.g., for picking. Each must
0080   // refer to an attribute definition in the above map; its name is
0081   // the key. The user must test the validity of this pointer (it
0082   // must be non-zero and conform to the G4AttDefs, which may be
0083   // checked with G4AttCheck) and delete the list after use. See
0084   // G4Trajectory for an example of a concrete implementation of this
0085   // method and G4VTrajectory::ShowTrajectory() for an example of its use.
0086   virtual std::vector<G4AttValue>* CreateAttValues() const { return nullptr; }
0087 };
0088
0089 #endif