Gabriele Cosmo
86 lines
3.6 KiB
C++
86 lines
3.6 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4VPGeoDriver.hh,v 1.7 2006/06/29 18:16:45 gunter Exp $
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// GEANT4 tag $Name: geant4-08-01 $
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//
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// ----------------------------------------------------------------------
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// Class G4VPGeoDriver
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//
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// Class description:
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//
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// Used internally by importance sampling and scoring in a "parallel"
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// geometry.
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// It defines an interface to "drive" or "move" a particle in a
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// "parallel" geometry.
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// Author: Michael Dressel (Michael.Dressel@cern.ch)
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// ----------------------------------------------------------------------
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#ifndef G4VPGeoDriver_hh
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#define G4VPGeoDriver_hh G4VPGeoDriver_hh
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#include "globals.hh"
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#include "G4ThreeVector.hh"
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#include "G4GeometryCell.hh"
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class G4VPhysicalVolume;
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class G4VPGeoDriver
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{
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public: // with description
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G4VPGeoDriver();
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virtual ~G4VPGeoDriver();
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virtual G4GeometryCell LocateOnBoundary(const G4ThreeVector &aPosition,
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const G4ThreeVector &aDirection) = 0;
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// The location of a track according to it's position
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// and direction in case the track crosses a boundary
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// of a "parallel" geometry.
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// Must be called in the PostDOIT of the ParallelTransportation.
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// (The track crosses the boundary if PostDOIT gets called.)
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virtual G4GeometryCell GetCurrentGeometryCell() const = 0;
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// get the current G4GeometryCell of the "parallel" geometry
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virtual G4double ComputeStepLengthInit(const G4ThreeVector &aPosition,
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const G4ThreeVector &aDirection) = 0;
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// compute step length for a starting track.
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virtual G4double ComputeStepLengthCrossBoundary(const G4ThreeVector &aPosition,
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const G4ThreeVector &aDirection) = 0;
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// compute the step length after a track crossed a boundary
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// in a "parallel" geometry
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virtual G4double ComputeStepLengthInVolume(const G4ThreeVector &aPosition,
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const G4ThreeVector &aDirection) = 0;
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// compute step length when track moves inside a volume.
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};
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#endif
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