G4ReplicatedSlice.hh

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// G4ReplicatedSlice
//
// Class description:
//
// G4ReplicatedSlice represents many touchable detector elements differing
// only in their positioning. The elements' positions are calculated by means
// of a simple linear formula.
 
// Author: Makoto Asai (SLAC), 20/04/2010 - Extended from G4PVDivision
// ----------------------------------------------------------------------
#ifndef G4REPLICATEDSLICE_HH 
#define G4REPLICATEDSLICE_HH 1
 
#include "geomdefs.hh"
#include "G4PVReplica.hh"
#include "G4VDivisionParameterisation.hh"
 
class G4LogicalVolume;
class G4VSolid;
 
/**
 * @brief G4ReplicatedSlice represents many touchable detector elements
 * differing only in their positioning. The elements' positions are calculated
 * by means of a simple linear formula.
 * 
 * Division may occur along:
 *
 * o Cartesian axes (kXAxis,kYAxis,kZAxis)
 *
 *   The divisions, of specified width have coordinates of
 *   form (-width*(nReplicas-1)*0.5+n*width,0,0) where n=0.. nReplicas-1
 *   for the case of kXAxis, and are unrotated.
 *
 * o Radial axis (cylindrical polar) (kRho)
 *
 *   The divisions are cons/tubs sections, centred on the origin
 *   and are unrotated.
 *   They have radii of width*n+offset to width*(n+1)+offset
 *                      where n=0..nReplicas-1
 *
 * o Phi axis (cylindrical polar) (kPhi)
 *   The divisions are `phi sections' or wedges, and of cons/tubs form
 *   They have phi of offset+n*width to offset+(n+1)*width where
 *   n=0..nReplicas-1
 */
 
class G4ReplicatedSlice : public G4PVReplica
{
  public:
    
    /**
     * Constructor with number of divisions and width.
     *  @param[in] pName The volume name.
     *  @param[in] pLogical Pointer to the logical volume of the division.
     *  @param[in] pMotherLogical Pointer to the logical volume of the mother.
     *  @param[in] pAxis The axis along which do the division.
     *  @param[in] nReplicas The number of copies to replicate.
     *  @param[in] width The witdh of the divided slice along the axis.
     *  @param[in] half_gap The half-witdh of the gap between slices.
     *  @param[in] offset The optional offset distance from mother's border.
     */
    G4ReplicatedSlice(const G4String& pName,
                            G4LogicalVolume* pLogical,
                            G4LogicalVolume* pMotherLogical,
                      const EAxis pAxis,
                      const G4int nReplicas,
                      const G4double width,
                      const G4double half_gap,
                      const G4double offset );
 
    /**
     * Constructor with number of divisions.
     *  @param[in] pName The volume name.
     *  @param[in] pLogical Pointer to the logical volume of the division.
     *  @param[in] pMotherLogical Pointer to the logical volume of the mother.
     *  @param[in] pAxis The axis along which do the division.
     *  @param[in] nReplicas The number of copies to replicate.
     *  @param[in] half_gap The half-witdh of the gap between slices.
     *  @param[in] offset The optional offset distance from mother's border.
     */
    G4ReplicatedSlice(const G4String& pName,
                            G4LogicalVolume* pLogical,
                            G4LogicalVolume* pMotherLogical,
                      const EAxis pAxis,
                      const G4int nReplicas,
                      const G4double half_gap,
                      const G4double offset );
 
    /**
     * Constructor with width of the division slice.
     *  @param[in] pName The volume name.
     *  @param[in] pLogical Pointer to the logical volume of the division.
     *  @param[in] pMotherLogical Pointer to the logical volume of the mother.
     *  @param[in] pAxis The axis along which do the division.
     *  @param[in] width The witdh of the divided slice along the axis.
     *  @param[in] half_gap The half-witdh of the gap between slices.
     *  @param[in] offset The optional offset distance from mother's border.
     */
    G4ReplicatedSlice(const G4String& pName,
                            G4LogicalVolume* pLogical,
                            G4LogicalVolume* pMotherLogical,
                      const EAxis pAxis,
                      const G4double width,
                      const G4double half_gap,
                      const G4double offset );
 
    /**
     * Constructor in mother physical volume with number of divisions and width.
     *  @param[in] pName The volume name.
     *  @param[in] pLogical Pointer to the logical volume of the division.
     *  @param[in] pMotherPhysical Pointer to the physical volume of the mother.
     *  @param[in] pAxis The axis along which do the division.
     *  @param[in] nReplicas The number of copies to replicate.
     *  @param[in] width The witdh of the divided slice along the axis.
     *  @param[in] half_gap The half-witdh of the gap between slices.
     *  @param[in] offset The optional offset distance from mother's border.
     */
    G4ReplicatedSlice(const G4String& pName,
                            G4LogicalVolume* pLogical,
                            G4VPhysicalVolume* pMotherPhysical,
                      const EAxis pAxis,
                      const G4int nReplicas,
                      const G4double width,
                      const G4double half_gap,
                      const G4double offset);
 
    /**
     * Constructor in mother physical volume with number of divisions.
     *  @param[in] pName The volume name.
     *  @param[in] pLogical Pointer to the logical volume of the division.
     *  @param[in] pMotherPhysical Pointer to the physical volume of the mother.
     *  @param[in] pAxis The axis along which do the division.
     *  @param[in] nReplicas The number of copies to replicate.
     *  @param[in] half_gap The half-witdh of the gap between slices.
     *  @param[in] offset The optional offset distance from mother's border.
     */
    G4ReplicatedSlice(const G4String& pName,
                            G4LogicalVolume* pLogical,
                            G4VPhysicalVolume* pMotherPhysical,
                      const EAxis pAxis,
                      const G4int nReplicas,
                      const G4double half_gap,
                      const G4double offset );
 
    /**
     * Constructor in mother physical volume with width of division slice.
     *  @param[in] pName The volume name.
     *  @param[in] pLogical Pointer to the logical volume of the division.
     *  @param[in] pMotherPhysical Pointer to the physical volume of the mother.
     *  @param[in] pAxis The axis along which do the division.
     *  @param[in] width The witdh of the divided slice along the axis.
     *  @param[in] half_gap The half-witdh of the gap between slices.
     *  @param[in] offset The optional offset distance from mother's border.
     */
    G4ReplicatedSlice(const G4String& pName,
                            G4LogicalVolume* pLogical,
                            G4VPhysicalVolume* pMotherPhysical,
                      const EAxis pAxis,
                      const G4double width,
                      const G4double half_gap,
                      const G4double offset );
 
    /**
     * Destructor.
     */
    ~G4ReplicatedSlice() override;
 
    /**
     * Copy constructor and assignment operator not allowed.
     */
    G4ReplicatedSlice(const G4ReplicatedSlice&) = delete;
    G4ReplicatedSlice& operator=(const G4ReplicatedSlice&) = delete;
 
    /**
     * Not used.
     */
    G4bool IsMany() const override;
 
    /**
     * Returns true.
     */
    G4bool IsReplicated() const override;
 
    /**
     * Returns the number of slices.
     */
    G4int GetMultiplicity() const override;
 
    /**
     * Returns true to identify if it is a parameterised physical volume.
     */
    G4bool IsParameterised() const override;
 
    /**
     * Returns the pointer to the parameterisation algorithm.
     */
    G4VPVParameterisation* GetParameterisation() const override;
 
    /**
     * Fills arguments with the attributes from the base replica.
     * @param[in,out] axis Axis of parameterisation returned.
     * @param[in,out] nReplicas The number of division copies.
     * @param[in,out] width Width of the division slice.
     * @param[in,out] offset Potential offset in replication.
     * @param[in,out] consuming Flag of replica characterisation (always false
     *                for parameterisations).
     */
    void GetReplicationData( EAxis& axis,
                             G4int& nReplicas,
                             G4double& width,
                             G4double& offset,
                             G4bool& consuming ) const override;
 
    /**
     * Returns the axis along which the division is made.
     *  @returns The string Id of the axis.
     */
    EAxis  GetDivisionAxis() const;
   
    /**
     * Returns the volume type characterisation.
     *  @returns The string Id of the volume type, i.e. 'kParameterised'.
     */
    EVolume VolumeType() const final;
 
    /**
     * Methods to identify volumes that can have revised 'regular' navigation.
     * Currently divisions do not qualify for this.
     */
    G4bool IsRegularStructure() const override; 
    G4int  GetRegularStructureId() const override; 
 
  private:
 
    /**
     * Invoked in constructors to check and set the parameters for the
     * parameterisation.
     */
    void CheckAndSetParameters( const EAxis pAxis,
                                const G4int nDivs,
                                const G4double width,
                                const G4double half_gap,
                                const G4double offset, 
                                      DivisionType divType,
                                      G4LogicalVolume* pMotherLogical,
                                const G4LogicalVolume* pLogical );
 
    /**
     * Sets the parameterisation according to the allowed type of solid
     * to be divided.
     */
    void SetParameterisation(       G4LogicalVolume* motherLogical,
                              const EAxis pAxis,
                              const G4int nReplicas,
                              const G4double width,
                              const G4double half_gap,
                              const G4double offset, 
                                    DivisionType divType );
 
    /**
     * Logging the axis when an error in division occurs.
     */
    void ErrorInAxis( EAxis axis, G4VSolid* solid );
 
  protected:
 
    /** Axis of optimisation. */
    EAxis faxis;
 
    /** Axis of division. */
    EAxis fdivAxis;
 
    /** Number of slices. */
    G4int fnReplicas = 0;
 
    /** Width of the division slice and potential offset. */
    G4double fwidth = 0.0, foffset = 0.0;
 
    /** Pointer to the parameterisation algorithm. */
    G4VDivisionParameterisation* fparam = nullptr; 
};
 
#endif