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geant4/source/geometry/magneticfield/include/G4QSSDriver.hh
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2023-12-08 10:43:34 +01:00

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//
// ********************************************************************
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// * *
// * The Geant4 software is copyright of the Copyright Holders of *
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//
// G4QSSDriver
//
// QSS Interpolator Driver
// Authors: Lucio Santi, Rodrigo Castro - 2018-2021
// --------------------------------------------------------------------
#ifndef G4QSSDriver_HH
#define G4QSSDriver_HH
#include "G4InterpolationDriver.hh"
#include "G4QSSMessenger.hh"
template <class T>
class G4QSSDriver : public G4InterpolationDriver<T, true>
{
public:
G4QSSDriver(T* stepper);
// Hacky way of getting and setting precision parameters
// from messenger on first run
void OnStartTracking() override;
G4QSSDriver(const G4QSSDriver&) = delete;
const G4QSSDriver& operator=(const G4QSSDriver&) = delete;
G4double AdvanceChordLimited(G4FieldTrack& track,
G4double hstep,
G4double eps,
G4double chordDistance) override;
void OnComputeStep(const G4FieldTrack* track) override
{
Base::OnComputeStep(track);
#ifdef GEANT4_DUMP_STEPPER_STATS
this->GetStepper()->stats.steps++;
#endif
}
void SetPrecision(G4double dq_rel, G4double dq_min);
G4double OneGoodStep(typename G4InterpolationDriver<T, true>::StepperIterator it,
field_utils::State& y,
field_utils::State& dydx,
G4double& hstep,
G4double epsStep,
G4double curveLength,
G4FieldTrack* track) override;
private:
using Base = G4InterpolationDriver<T, true>;
G4bool initializedOnFirstRun = false;
};
#include "G4QSSDriver.icc"
#endif