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lars 517ba2ecb2 add child_track_ids array column to Steps; remove parent_id
Each Steps row now carries a variable-length child_track_ids int array
containing the track IDs of all secondaries spawned during that step.
The parent_id column is removed — parentage is now expressed
unidirectionally (parent→children) via child_track_ids and the Spawning
ntuple, rather than bidirectionally.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-11 10:30:36 +02:00

70 lines
2.6 KiB
C++

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/// \file B4/B4a/include/SteppingAction.hh
/// \brief Definition of the B4a::SteppingAction class
#ifndef B4aSteppingAction_h
#define B4aSteppingAction_h 1
#include "G4UserSteppingAction.hh"
#include "GeometryDescriptor.hh"
#include "DetectorConstruction.hh"
#include "RunAction.hh"
namespace B4a
{
class EventAction;
/// Stepping action class.
///
/// In UserSteppingAction() there are collected the energy deposit and track
/// lengths of charged particles in Absober and Gap layers and
/// updated in EventAction.
class SteppingAction : public G4UserSteppingAction
{
public:
SteppingAction(EventAction* eventAction);
~SteppingAction() override = default;
void UserSteppingAction(const G4Step* step) override;
void setRunAction(const B4::RunAction* runAction) { fRunAction = runAction; }
private:
EventAction* fEventAction = nullptr;
const B4::RunAction* fRunAction = nullptr;
};
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
#endif