Gabriele Cosmo
83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4VPGeoDriver.hh,v 1.6 2002/10/14 12:36:01 dressel Exp $
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// GEANT4 tag $Name: geant4-05-00 $
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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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