Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/navigation/include/G4NormalNavigation.icc

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  1 //
  2 // ********************************************************************
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 24 // ********************************************************************
 25 // 
 26 // G4NormalNavigation Inline Implementation
 27 //
 28 // --------------------------------------------------------------------
 29 
 30 // ********************************************************************
 31 // LevelLocate
 32 // ********************************************************************
 33 //
 34 inline
 35 G4bool
 36 G4NormalNavigation::LevelLocate( G4NavigationHistory& history,
 37                            const G4VPhysicalVolume* blockedVol,
 38                            const G4int,
 39                            const G4ThreeVector& globalPoint,
 40                            const G4ThreeVector* globalDirection,
 41                            const G4bool  pLocatedOnEdge, 
 42                                  G4ThreeVector &localPoint )
 43 {
 44   G4VPhysicalVolume *targetPhysical, *samplePhysical;
 45   G4LogicalVolume *targetLogical;
 46   G4VSolid *sampleSolid;
 47   G4ThreeVector samplePoint;
 48   G4int targetNoDaughters;
 49   
 50   targetPhysical = history.GetTopVolume();
 51   targetLogical = targetPhysical->GetLogicalVolume();
 52   targetNoDaughters = G4int(targetLogical->GetNoDaughters());
 53   
 54   G4bool found = false;
 55 
 56   if ( targetNoDaughters!=0 )
 57   {
 58     //
 59     // Search daughters in volume
 60     //
 61     for ( auto sampleNo=targetNoDaughters-1; sampleNo>=0; sampleNo-- )
 62     {
 63       samplePhysical = targetLogical->GetDaughter(sampleNo);
 64       if ( samplePhysical!=blockedVol )
 65       {
 66         // Setup history
 67         //
 68         history.NewLevel(samplePhysical, kNormal, samplePhysical->GetCopyNo());
 69         sampleSolid = samplePhysical->GetLogicalVolume()->GetSolid();
 70         samplePoint = history.GetTopTransform().TransformPoint(globalPoint);
 71         if( G4AuxiliaryNavServices::
 72             CheckPointOnSurface(sampleSolid, samplePoint, globalDirection, 
 73                                 history.GetTopTransform(), pLocatedOnEdge) )
 74         {
 75           // Enter this daughter
 76           //
 77           localPoint = samplePoint;
 78           found = true;
 79           break;
 80         }
 81         history.BackLevel();
 82       }
 83     }
 84   }
 85   return found;
 86 }
 87