Import Geant4 10.6.0 source tree

2019-12-06 15:12:28 +01:00
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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.          *
+// ********************************************************************
+//
+// 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 "G4NavigationHistory.hh"
+#include "G4VPhysicalVolume.hh"
+#include "G4LogicalVolume.hh"
+#include "G4VSolid.hh"
+#include "G4ThreeVector.hh"
+
+class G4VExternalNavigation
+{
+  public:  // with description
+
+    G4VExternalNavigation();
+      // Constructor
+   
+    virtual ~G4VExternalNavigation();
+      // Destructor
+   
+    virtual G4bool LevelLocate( G4NavigationHistory& history,
+                                const G4VPhysicalVolume* blockedVol,
+                                const G4int blockedNum,
+                                const G4ThreeVector& globalPoint,
+                                const G4ThreeVector* globalDirection,
+                                const G4bool pLocatedOnEdge,
+                                G4ThreeVector& localPoint) = 0;
+      // Search positioned volumes in mother at current top level of history
+      // for volume containing globalPoint. Do not test the blocked volume.
+      // If a containing volume is found, `stack' the new volume and return
+      // true, else return false (the point lying in the mother but not any
+      // of the daughters). localPoint = global point in local system on entry,
+      // point in new system on exit.
+
+    virtual G4double ComputeStep( const G4ThreeVector& localPoint,
+                                  const G4ThreeVector& localDirection,
+                                  const G4double currentProposedStepLength,
+                                  G4double& newSafety,
+                                  G4NavigationHistory& history,
+                                  G4bool& validExitNormal,
+                                  G4ThreeVector& exitNormal,
+                                  G4bool& exiting,
+                                  G4bool& entering,
+                                  G4VPhysicalVolume** pBlockedPhysical,
+                                  G4int& blockedReplicaNo ) = 0;
+     // Compute the length of a step to the next boundary.
+     // Ignore the (input) pBlockedPhysical volume (with replica/parameterisation
+     //   number 'blockedReplica')
+     // Identify the next candidate volume (if a daughter of current volume),
+     //   and return it in pBlockedPhysical, blockedReplicaNo
+     // In/Out  Navigation history: to be update for volume of next intersection.
+     // In/out 'newsafety' is the known isotropic safety of the initial point:
+     //     an earlier (likely crude) estimate on input,
+     //     to be updated with new estimate for the same (start) point.
+   
+    virtual G4double ComputeSafety( const G4ThreeVector& globalpoint,
+                                    const G4NavigationHistory& history,
+                                    const G4double pMaxLength = DBL_MAX ) = 0;
+
+    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'
+   
+    inline G4int GetVerboseLevel() const { return fVerbose; }
+    inline void  SetVerboseLevel(G4int level) { fVerbose = level; }
+      // Get/Set verbosity level.
+
+    inline void  CheckMode(G4bool mode) { fCheck = mode; }
+      // Run navigation in "check-mode", therefore using additional
+      // verifications and more strict correctness conditions.
+      // Should be effective only with G4VERBOSE set.
+
+  protected:
+
+    G4bool fCheck = false;
+    G4int fVerbose = 0;
+};
+
+#endif