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geant4/source/track/include/G4Step.hh
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2020-12-04 12:30:43 +01:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
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// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
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// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// G4Step
//
// Class description:
//
// This class represents the Step of a particle being tracked.
// It includes information of:
// 1) List of Step points which compose the Step,
// 2) static information of particle which generated the Step,
// 3) trackID and parent particle ID of the Step,
// 4) termination condition of the Step.
// Authors:
// Katsuya Amako (e-mail: Katsuya.Amako@kek.jp)
// Takashi Sasaki (e-mail: Takashi.Sasaki@kek.jp)
// Revisions:
// Hisaya Kurashige, 1998-2007
// --------------------------------------------------------------------
#ifndef G4Step_hh
#define G4Step_hh 1
#include <stdlib.h> // Include from 'system'
#include <cmath> // Include from 'system'
#include "G4ios.hh" // Include from 'system'
#include <iomanip> // Include from 'system'
#include "globals.hh" // Include from 'global'
#include "G4ThreeVector.hh" // Include from 'global'
#include "G4VPhysicalVolume.hh" // Include from 'geometry'
#include "G4StepPoint.hh" // Include from 'track'
#include "G4StepStatus.hh" // Include from 'track'
#include "G4TrackVector.hh" // Include from 'tracking'
#include "G4Profiler.hh" // Include from 'global'
class G4Polyline; // Forward declaration.
class G4Track; // Forward declaration.
class G4Step
{
public:
// the profiler aliases are only used when compiled with GEANT4_USE_TIMEMORY
using ProfilerConfig = G4ProfilerConfig<G4ProfileType::Step>;
G4Step();
~G4Step();
// Constructor/Destructor
G4Step(const G4Step&);
G4Step& operator=(const G4Step&);
// Copy Constructor and assignment operator
G4Track* GetTrack() const;
void SetTrack(G4Track* value);
// Current track
G4StepPoint* GetPreStepPoint() const;
void SetPreStepPoint(G4StepPoint* value);
// Pre-Step points
G4StepPoint* GetPostStepPoint() const;
void SetPostStepPoint(G4StepPoint* value);
// Post-Step points
G4double GetStepLength() const;
void SetStepLength(G4double value);
// Before the end of the AlongStepDoIt loop, StepLength keeps
// the initial value which is determined by the shortest geometrical Step
// proposed by a physics process. After finishing the AlongStepDoIt,
// it will be set equal to 'StepLength' in G4Step
G4double GetTotalEnergyDeposit() const;
void SetTotalEnergyDeposit(G4double value);
// Total energy deposit
G4double GetNonIonizingEnergyDeposit() const;
void SetNonIonizingEnergyDeposit(G4double value);
// Total non-ionizing energy deposit
G4SteppingControl GetControlFlag() const;
void SetControlFlag(G4SteppingControl StepControlFlag);
// Control flag for stepping
void AddTotalEnergyDeposit(G4double value);
void ResetTotalEnergyDeposit();
// Manipulation of total energy deposit
void AddNonIonizingEnergyDeposit(G4double value);
void ResetNonIonizingEnergyDeposit();
// Manipulation of non-ionizing energy deposit
G4bool IsFirstStepInVolume() const;
G4bool IsLastStepInVolume() const;
void SetFirstStepFlag();
void ClearFirstStepFlag();
void SetLastStepFlag();
void ClearLastStepFlag();
// Get/Set/Clear flag for initial/last step
// NOTE: flags are not used
G4ThreeVector GetDeltaPosition() const;
G4double GetDeltaTime() const;
// Difference of position, time, momentum and energy
G4ThreeVector GetDeltaMomentum() const;
G4double GetDeltaEnergy() const;
// These methods will be deleted
// NOTE: use GetTotalEnergyDeposit() to obtain energy loss in material
void InitializeStep(G4Track* aValue);
// Initialize contents of G4Step
void UpdateTrack();
// Update track by using G4Step information
void CopyPostToPreStepPoint();
// Copy PostStepPoint to PreStepPoint
G4Polyline* CreatePolyline() const;
// For visualization
inline void SetPointerToVectorOfAuxiliaryPoints(std::vector<G4ThreeVector>* vec);
inline std::vector<G4ThreeVector>* GetPointerToVectorOfAuxiliaryPoints() const;
// Auxiliary points modifiers
// --- Secondary buckets ---
std::size_t GetNumberOfSecondariesInCurrentStep() const;
// Secondaries in the current step
const std::vector<const G4Track*>* GetSecondaryInCurrentStep() const;
const G4TrackVector* GetSecondary() const;
G4TrackVector* GetfSecondary();
G4TrackVector* NewSecondaryVector();
// NOTE: Secondary bucket of the Step contains
// all secondaries during tracking the current track
// (i.e. NOT secondaries produced in the current step)
// all these methods give same object (i.e. G4TrackVector )
// but 2nd one will create bucket in addition
void DeleteSecondaryVector();
// Just delete secondary bucket
// NOTE: G4Track objects inside the bucket are not deleted
void SetSecondary(G4TrackVector* value);
// Add secondary tracks to the bucket
protected:
G4double fTotalEnergyDeposit = 0.0;
// Accumulated total energy deposit in the current Step
G4double fNonIonizingEnergyDeposit = 0.0;
// Accumulated non-ionizing energy deposit in the current Step
private:
G4StepPoint* fpPreStepPoint = nullptr;
G4StepPoint* fpPostStepPoint = nullptr;
G4double fStepLength = 0.0;
// Step length which may be updated at each invocation of
// AlongStepDoIt and PostStepDoIt
G4Track* fpTrack = nullptr;
G4SteppingControl fpSteppingControlFlag = NormalCondition;
// A flag to control SteppingManager behavior from process
G4bool fFirstStepInVolume = false;
G4bool fLastStepInVolume = false;
// Flags for initial/last step
G4TrackVector* fSecondary = nullptr;
// Secondary bucket implemented by using std::vector of G4Track*
std::size_t nSecondaryByLastStep = 0;
// number of secondaries which have been created by the last step
std::vector<const G4Track*>* secondaryInCurrentStep = nullptr;
std::vector<G4ThreeVector>* fpVectorOfAuxiliaryPointsPointer = nullptr;
};
#include "G4Step.icc"
#endif