Import Geant4 10.5.0.beta source tree

2018-06-29 10:58:11 +02:00
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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 *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * 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.          *
+// ********************************************************************
+//
+//
+// $Id: $
+//
+//
+// Description:
+//    Modified midpoint method implementation
+//    Implementation is based on modified_midpoint.hpp from boost odeint
+
+//    Implementation by Dmitry Sorokin - GSoC 2016
+//       Work supported by Google as part of Google Summer of Code 2016.
+//    Supervision / code review: John Apostolakis
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef G4MODIFIED_MIDPOINT_HH
+#define G4MODIFIED_MIDPOINT_HH
+
+#include "G4Types.hh"
+#include "G4EquationOfMotion.hh"
+#include "G4FieldTrack.hh"
+
+class G4ModifiedMidpoint
+{
+  public:
+
+    G4ModifiedMidpoint( G4EquationOfMotion* equation,
+                        G4int nvar = 6, G4int steps = 2 );
+   ~G4ModifiedMidpoint() = default;
+
+    void DoStep( const G4double yIn[], const G4double dydxIn[],
+                 G4double yOut[], G4double hstep) const;
+
+    void DoStep( const G4double yIn[], const G4double dydxIn[],
+                 G4double yOut[], G4double hstep, G4double yMid[],
+                 G4double derivs[][G4FieldTrack::ncompSVEC]) const;
+
+    inline void SetSteps(G4int steps);
+    inline G4int GetSteps() const;
+
+    inline void SetEquationOfMotion(G4EquationOfMotion* equation);
+    inline G4EquationOfMotion* GetEquationOfMotion();
+
+    inline G4int GetNumberOfVariables() const;
+
+  private:
+
+    void copy(G4double dst[], const G4double src[]) const;
+
+  private:
+
+    G4EquationOfMotion* fEquation;
+    G4int fnvar;
+    G4int fsteps;
+};
+
+#include "G4ModifiedMidpoint.icc"
+
+#endif