G4TouchableHistory.icc

Go to the documentation of this file.

//
// ********************************************************************
// * 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.          *
// ********************************************************************
//
// class G4TouchableHistory inline implementation
//
// Created: Paul Kent, August 1996
// ----------------------------------------------------------------------
 
extern G4GEOM_DLL G4Allocator<G4TouchableHistory>*& aTouchableHistoryAllocator();
 
inline
void  G4TouchableHistory::UpdateYourself(       G4VPhysicalVolume*   pPhysVol,
                                          const G4NavigationHistory* pHistory )
{
  fhistory = *pHistory;
  const G4AffineTransform& tf = fhistory.GetTopTransform();
  if( pPhysVol == nullptr )
  {
    // This means that the track has left the World Volume.
    // Since the Navigation History does not already reflect this,
    // we must correct this problem here.
    //
    fhistory.SetFirstEntry(pPhysVol);
  }
  ftlate = tf.InverseNetTranslation();
  frot = tf.InverseNetRotation();
}
 
inline
G4int G4TouchableHistory::CalculateHistoryIndex( G4int stackDepth ) const
{ 
  return G4int(fhistory.GetDepth()-stackDepth); // was -1
}
 
inline
G4VPhysicalVolume* G4TouchableHistory::GetVolume( G4int depth ) const
{ 
  return fhistory.GetVolume(CalculateHistoryIndex(depth));
}
 
inline
G4VSolid* G4TouchableHistory::GetSolid( G4int depth ) const
{ 
  return fhistory.GetVolume(CalculateHistoryIndex(depth))
                            ->GetLogicalVolume()->GetSolid();
}
 
inline
G4int G4TouchableHistory::GetReplicaNumber( G4int depth ) const
{ 
  return fhistory.GetReplicaNo(CalculateHistoryIndex(depth));
}
 
inline
G4int G4TouchableHistory::GetHistoryDepth()  const
{ 
  return  G4int(fhistory.GetDepth());
}
 
inline
G4int G4TouchableHistory::MoveUpHistory( G4int num_levels )
{ 
  G4int maxLevelsMove = G4int(fhistory.GetDepth());
  G4int minLevelsMove = 0;              // Cannot redescend today!
                                        // Soon it will be possible
                                        // by adding a data member here
                                        //     fCurrentDepth;
  if( num_levels > maxLevelsMove )
  {
    num_levels = maxLevelsMove;
  }
  else if( num_levels < minLevelsMove )
  {
    num_levels = minLevelsMove;
  }
  fhistory.BackLevel( num_levels ); 
 
  return num_levels;
}
 
inline
const G4NavigationHistory* G4TouchableHistory::GetHistory() const
{ 
  return &fhistory;
}
 
// There is no provision in case this class is subclassed.
// If it is subclassed, this will fail and may not give errors!
//
inline
void* G4TouchableHistory::operator new(size_t)
{ 
  // Once the Navigator calls InitializeAllocator,
  // the if block below can be removed.
  //
  if (aTouchableHistoryAllocator() == nullptr)
  {
     aTouchableHistoryAllocator() = new G4Allocator<G4TouchableHistory>;
  }
  return (void *) aTouchableHistoryAllocator()->MallocSingle();
}
 
inline
void G4TouchableHistory::operator delete(void* aTH)
{  
  aTouchableHistoryAllocator()->FreeSingle((G4TouchableHistory *) aTH);
}