Import Geant4 11.2.0 source tree
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Gabriele Cosmo
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//
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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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// class G4VNavigation
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//
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// Class description:
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//
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// Navigation interface common between all navigator types.
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// Author: G. Amadio - CERN, March 2022
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// --------------------------------------------------------------------
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#ifndef G4VNAVIGATION_HH
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#define G4VNAVIGATION_HH
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#include "G4ThreeVector.hh"
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class G4LogicalVolume;
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class G4VPhysicalVolume;
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class G4NavigationHistory;
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/**
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* @brief G4VNavigation class holds the common navigation interface
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* for all geometry navigator types.
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*/
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class G4VNavigation
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{
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public:
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/** Virtual Destructor. */
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virtual ~G4VNavigation() {}
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/**
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* Search positioned volumes in mother at current top level of @p history
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* for volume containing @p globalPoint. Do not test against @p blockedVol.
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* If a containing volume is found, push it onto navigation history state.
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* @param[in,out] history Navigation history.
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* @param[in,out] blockedVol Blocked volume that should be ignored in queries.
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* @param[in,out] blockedNum Copy number for blocked replica volumes.
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* @param[in,out] globalPoint Global point
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* @param[in,out] globalDirection Pointer to global direction or null pointer.
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* @param[in,out] localPoint = global point in local system on entry, point
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* in new system on exit.
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* @returns Whether a containing volume has been found.
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*/
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virtual G4bool LevelLocate(G4NavigationHistory& history,
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const G4VPhysicalVolume* blockedVol,
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const G4int blockedNum,
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const G4ThreeVector& globalPoint,
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const G4ThreeVector* globalDirection,
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const G4bool pLocatedOnEdge,
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G4ThreeVector& localPoint) = 0;
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/**
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* Compute the length of a step to the next boundary.
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* Do not test against @p pBlockedPhysical. Identify the next candidate volume
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* (if a daughter of current volume), and return it in pBlockedPhysical,
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* blockedReplicaNo.
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* @param[in] localPoint Local point
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* @param[in] localDirection Pointer to local direction or null pointer.
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* @param[in] currentProposedStepLength Current proposed step length.
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* @param[in,out] newSafety New safety.
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* @param[in,out] history Navigation history.
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* @param[in,out] validExitNormal Flag to indicate whether exit normal is
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* valid or not.
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* @param[in,out] exitNormal Exit normal.
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* @param[in,out] entering Flag to indicate whether we are entering a volume.
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* @param[in,out] exiting Flag to indicate whether we are exiting a volume.
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* @param[in,out] pBlockedPhysical Blocked physical volume that should be
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* ignored in queries.
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* @param[in,out] blockedReplicaNo Copy number for blocked replica volumes.
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* @returns Length from current point to next boundary surface along @p
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* localDirection.
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*/
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virtual G4double ComputeStep(const G4ThreeVector& localPoint,
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const G4ThreeVector& localDirection,
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const G4double currentProposedStepLength,
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G4double& newSafety,
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G4NavigationHistory& history,
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G4bool& validExitNormal,
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G4ThreeVector& exitNormal,
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G4bool& exiting,
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G4bool& entering,
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G4VPhysicalVolume*(*pBlockedPhysical),
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G4int& blockedReplicaNo) = 0;
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/**
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* Compute the distance to the closest surface.
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* @param[in] globalPoint Global point.
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* @param[in] history Navigation history.
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* @param[in] pMaxLength Maximum step length beyond which volumes need not be
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* checked.
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* @returns Length from current point to closest surface.
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*/
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virtual G4double ComputeSafety(const G4ThreeVector& globalpoint,
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const G4NavigationHistory& history,
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const G4double pMaxLength = DBL_MAX) = 0;
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/**
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* Update internal navigation state to take into account that location
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* has been moved, but remains within the @p motherPhysical volume.
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* @param[in] motherPhysical Current physical volume.
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* @param[in] localPoint Local point.
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*/
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virtual void RelocateWithinVolume(G4VPhysicalVolume* /* motherPhysical */,
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const G4ThreeVector& /* localPoint */)
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{
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/* do nothing by default */
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}
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/** Get current verbosity level */
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virtual G4int GetVerboseLevel() const { return fVerbose; }
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/** Set current verbosity level */
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virtual void SetVerboseLevel(G4int level) { fVerbose = level; }
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/**
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* Set check mode.
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* When enabled, forces navigator to run in "check mode", hence using
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* additional verifications and stricter condictions for ensuring correctness.
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* Effective only when G4VERBOSE is enabled.
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*/
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void CheckMode(G4bool mode) { fCheck = mode; }
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protected:
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G4int fVerbose = 0;
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G4bool fCheck = false;
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};
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#endif
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