G4NormalNavigation.icc

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// $Id: G4NormalNavigation.icc 90009 2015-05-08 07:42:39Z gcosmo $
//
// 
// G4NormalNavigation Inline Implementation
//
// --------------------------------------------------------------------

// ********************************************************************
// CheckMode
// ********************************************************************
//
inline
void G4NormalNavigation::CheckMode(G4bool mode)
{
  fCheck = mode;
}

// ********************************************************************
// LevelLocate
// ********************************************************************
//
inline
G4bool
G4NormalNavigation::LevelLocate( G4NavigationHistory& history,
                           const G4VPhysicalVolume* blockedVol,
                           const G4int,
                           const G4ThreeVector& globalPoint,
                           const G4ThreeVector* globalDirection,
                           const G4bool  pLocatedOnEdge, 
                                 G4ThreeVector &localPoint )
{
  G4VPhysicalVolume *targetPhysical, *samplePhysical;
  G4LogicalVolume *targetLogical;
  G4VSolid *sampleSolid;
  G4ThreeVector samplePoint;
  G4int targetNoDaughters;
  
  targetPhysical = history.GetTopVolume();
  targetLogical = targetPhysical->GetLogicalVolume();
  targetNoDaughters = targetLogical->GetNoDaughters();
  
  G4bool found = false;

  if (targetNoDaughters!=0)
  {
    //
    // Search daughters in volume
    //
    for ( G4int sampleNo=targetNoDaughters-1; sampleNo>=0; sampleNo-- )
    {
      samplePhysical = targetLogical->GetDaughter(sampleNo);
      if ( samplePhysical!=blockedVol )
      {
        // Setup history
        //
        history.NewLevel(samplePhysical, kNormal, samplePhysical->GetCopyNo());
        sampleSolid = samplePhysical->GetLogicalVolume()->GetSolid();
        samplePoint = history.GetTopTransform().TransformPoint(globalPoint);
        if( G4AuxiliaryNavServices::
            CheckPointOnSurface(sampleSolid, samplePoint, globalDirection, 
                                history.GetTopTransform(), pLocatedOnEdge) )
        {
          // Enter this daughter
          //
          localPoint = samplePoint;
          found = true;
          break;
        }
        else
        {
          history.BackLevel();
        }
      }
    }
  }
  return found;
}