d5/d24/G4ParameterisedNavigation_8hh_source.html

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//

// 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 = kUndefined;

    G4int fVoxelNoSlices = 0;

    G4double fVoxelSliceWidth = 0.0;

    size_t fVoxelNodeNo = 0;

    G4SmartVoxelHeader* fVoxelHeader = nullptr;

};


#include "G4ParameterisedNavigation.icc"


#endif