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geant4/source/geometry/navigation/include/G4VExternalNavigation.hh
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2023-12-08 10:43:34 +01:00

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//
// ********************************************************************
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//
// G4VExternalNavigation
//
// Class description:
//
// Pure virtual class to be specialised by the user for tracking with
// an external navigation
// Authors: V.Vlachoudis, G.Cosmo - CERN, 2019
// --------------------------------------------------------------------
#ifndef G4VEXTERNALNAVIGATION_HH
#define G4VEXTERNALNAVIGATION_HH
#include "G4LogicalVolume.hh"
#include "G4NavigationHistory.hh"
#include "G4ThreeVector.hh"
#include "G4VNavigation.hh"
#include "G4VPhysicalVolume.hh"
#include "G4VSolid.hh"
class G4VExternalNavigation : public G4VNavigation
{
public: // with description
G4VExternalNavigation();
// Constructor
virtual ~G4VExternalNavigation();
// Destructor
virtual G4VExternalNavigation* Clone() = 0;
// Optional methods - may be necessary under particular circumstances
virtual EInside Inside( const G4VSolid* solid,
const G4ThreeVector& position,
const G4ThreeVector& direction );
// Special 'Inside' call that includes direction of next motion
// provided for potential optimisations.
virtual void RelocateWithinVolume( G4VPhysicalVolume* motherPhysical,
const G4ThreeVector& localPoint );
// Update any relevant internal state to take account that
// - the location has been moved to 'localPoint'
// - it remains in the current (mother) physical volume 'motherPhysical'
};
#endif