BDSIM
BDSIM is a Geant4 extension toolkit for simulation of particle transport in accelerator beamlines.
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BDSIntegratorG4RK4MinStep.hh
1/*
2Beam Delivery Simulation (BDSIM) Copyright (C) BDSIM Collaboration, 2001 - 2026.
3
4This file is part of BDSIM.
5
6BDSIM is free software: you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published
8by the Free Software Foundation version 3 of the License.
9
10BDSIM is distributed in the hope that it will be useful, but
11WITHOUT ANY WARRANTY; without even the implied warranty of
12MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License
16along with BDSIM. If not, see <http://www.gnu.org/licenses/>.
17*/
18#ifndef BDSINTEGRATORG4RK4MINSTEP_H
19#define BDSINTEGRATORG4RK4MINSTEP_H
20
21#include "BDSIntegratorMag.hh"
22
23#include "globals.hh"
24
25class G4Mag_EqRhs;
26class G4MagIntegratorStepper;
27
35{
36public:
37 BDSIntegratorG4RK4MinStep(G4Mag_EqRhs* eqOfMIn,
38 G4double minimumStepSizeIn);
39
41
45 virtual void Stepper(const G4double y[],
46 const G4double dydx[],
47 const G4double h,
48 G4double yOut[],
49 G4double yErr[]);
50
51private:
54
55 G4MagIntegratorStepper* g4integrator;
56 G4double minimumStepSize;
57};
58
59#endif
Integrator that wraps a G4ClassicalRK4 and below a minimum step size uses a drift.
virtual void Stepper(const G4double y[], const G4double dydx[], const G4double h, G4double yOut[], G4double yErr[])
BDSIntegratorG4RK4MinStep()
Private default constructor to enforce use of supplied constructor.
Common functionality to BDSIM integrators.