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geant4/source/geometry/navigation/include/G4ParameterisedNavigation.hh
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2016-06-09 15:37:50 +02:00

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//
// ********************************************************************
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// * *
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// * technical work of the GEANT4 collaboration. *
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//
//
// $Id: G4ParameterisedNavigation.hh,v 1.6 2007/11/09 16:06:02 gcosmo Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
//
// class G4ParameterisedNavigation
//
// Class description:
//
// Utility for navigation in volumes containing a single G4PVParameterised
// volume for which voxels for the replicated volumes have been constructed.
// [Voxels MUST be along one axis only: NOT refined]
// History:
// - Created. Paul Kent, Aug 96
// --------------------------------------------------------------------
#ifndef G4PARAMETERISEDNAVIGATION_HH
#define G4PARAMETERISEDNAVIGATION_HH
#include "G4Types.hh"
#include <vector>
#include "G4VoxelNavigation.hh"
#include "G4NavigationHistory.hh"
#include "G4AffineTransform.hh"
#include "G4VPhysicalVolume.hh"
#include "G4VPVParameterisation.hh"
#include "G4LogicalVolume.hh"
#include "G4VSolid.hh"
#include "G4ThreeVector.hh"
#include "G4BlockingList.hh"
class G4ParameterisedNavigation : public G4VoxelNavigation
{
public: // with description
G4ParameterisedNavigation();
~G4ParameterisedNavigation();
inline G4SmartVoxelNode* ParamVoxelLocate( G4SmartVoxelHeader* pHead,
const G4ThreeVector& localPoint );
G4bool LevelLocate( G4NavigationHistory& history,
const G4VPhysicalVolume* blockedVol,
const G4int blockedNum,
const G4ThreeVector& globalPoint,
const G4ThreeVector* globalDirection,
const G4bool pLocatedOnEdge,
G4ThreeVector& localPoint );
G4double ComputeStep( const G4ThreeVector& globalPoint,
const G4ThreeVector& globalDirection,
const G4double currentProposedStepLength,
G4double& newSafety,
G4NavigationHistory& history,
G4bool& validExitNormal,
G4ThreeVector& exitNormal,
G4bool& exiting,
G4bool& entering,
G4VPhysicalVolume *(*pBlockedPhysical),
G4int& blockedReplicaNo );
G4double ComputeSafety( const G4ThreeVector& localPoint,
const G4NavigationHistory& history,
const G4double pProposedMaxLength=DBL_MAX );
private:
G4double ComputeVoxelSafety( const G4ThreeVector& localPoint,
const EAxis pAxis ) const;
G4bool LocateNextVoxel( const G4ThreeVector& localPoint,
const G4ThreeVector& localDirection,
const G4double currentStep,
const EAxis pAxis );
private:
// Necessary to resolve cases with nested parameterisations
inline G4VSolid* IdentifyAndPlaceSolid( G4int num,
G4VPhysicalVolume* apparentPhys,
G4VPVParameterisation* curParam );
// Call virtual 'Compute' methods, and copy information if nested.
// 'ApparentPhys' is potentially a PhysV or PhysT.
G4VPhysicalVolume* CreateVolumeWithParent(G4VPhysicalVolume* curPhysical,
const G4NavigationHistory& hist );
// Create necessary parent touchable and physical with parent.
private:
// Voxel Stack information (for 1D optimisation only)
//
EAxis fVoxelAxis;
G4int fVoxelNoSlices;
G4double fVoxelSliceWidth;
G4int fVoxelNodeNo;
G4SmartVoxelHeader* fVoxelHeader;
};
#include "G4ParameterisedNavigation.icc"
#endif