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//
// ********************************************************************
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// * *
// * The Geant4 software is copyright of the Copyright Holders of *
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// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
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// ********************************************************************
//
// G4UPara
//
// Class description:
//
// Wrapper class for G4Para to make use of VecGeom Parallelepiped.
// Author: G.Cosmo (CERN), 13.09.2013
// --------------------------------------------------------------------
#ifndef G4UPARA_HH
#define G4UPARA_HH
#include "G4UAdapter.hh"
#if ( defined(G4GEOM_USE_USOLIDS) || defined(G4GEOM_USE_PARTIAL_USOLIDS) )
#include <VecGeom/volumes/UnplacedParallelepiped.h>
#include "G4Polyhedron.hh"
/**
* @brief G4UPara is a wrapper class for G4Para to make use of
* VecGeom Parallelepiped.
*/
class G4UPara : public G4UAdapter<vecgeom::UnplacedParallelepiped>
{
using Shape_t = vecgeom::UnplacedParallelepiped;
using Base_t = G4UAdapter<vecgeom::UnplacedParallelepiped>;
public:
/**
* Constructs a parallelepiped, given a name and its parameters.
* @param[in] pName The name of the solid.
* @param[in] pDx Half-length in x.
* @param[in] pDy Half-length in y.
* @param[in] pDz Half-length in z.
* @param[in] pAlpha Angle formed by the Y axis and by the plane joining
* the centre of the faces parallel to the Z-X plane at -dy
* and +dy.
* @param[in] pTheta Polar angle of the line joining the centres of the
* faces at -dz and +dz in Z.
* @param[in] pPhi Azimuthal angle of the line joining the centres of
* the faces at -dz and +dz in Z.
*/
G4UPara(const G4String& pName,
G4double pDx, G4double pDy, G4double pDz,
G4double pAlpha, G4double pTheta, G4double pPhi);
/**
* Constructs a parallelepiped, given a name and its 8 vertices.
* @param[in] pName The name of the solid.
* @param[in] pt Points of the 8 vertices.
*/
G4UPara(const G4String& pName,
const G4ThreeVector pt[8]);
/**
* Default destructor.
*/
~G4UPara() override = default;
/**
* Accessors.
*/
G4double GetZHalfLength() const;
G4double GetYHalfLength() const;
G4double GetXHalfLength() const;
G4ThreeVector GetSymAxis() const;
G4double GetTanAlpha() const;
/**
* Accessors. Obtain (re)computed values of the original parameters.
*/
G4double GetAlpha() const;
G4double GetTheta() const;
G4double GetPhi() const;
// Obtain (re)computed values of original parameters
/**
* Modifiers.
*/
void SetXHalfLength(G4double val);
void SetYHalfLength(G4double val);
void SetZHalfLength(G4double val);
void SetAlpha(G4double alpha);
void SetTanAlpha(G4double val);
void SetThetaAndPhi(double pTheta, double pPhi);
/**
* Sets all parameters, as for constructor.
*/
void SetAllParameters(G4double pDx, G4double pDy, G4double pDz,
G4double pAlpha, G4double pTheta, G4double pPhi);
/**
* Dispatch method for parameterisation replication mechanism and
* dimension computation.
*/
void ComputeDimensions(G4VPVParameterisation* p,
const G4int n,
const G4VPhysicalVolume* pRep) override;
/**
* Returns the type ID, "G4Para" of the solid.
*/
inline G4GeometryType GetEntityType() const override;
/**
* Returns true as the solid has only planar faces.
*/
inline G4bool IsFaceted() const override;
/**
* Computes the bounding limits of the solid.
* @param[out] pMin The minimum bounding limit point.
* @param[out] pMax The maximum bounding limit point.
*/
void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
/**
* Calculates the minimum and maximum extent of the solid, when under the
* specified transform, and within the specified limits.
* @param[in] pAxis The axis along which compute the extent.
* @param[in] pVoxelLimit The limiting space dictated by voxels.
* @param[in] pTransform The internal transformation applied to the solid.
* @param[out] pMin The minimum extent value.
* @param[out] pMax The maximum extent value.
* @returns True if the solid is intersected by the extent region.
*/
G4bool CalculateExtent(const EAxis pAxis,
const G4VoxelLimits& pVoxelLimit,
const G4AffineTransform& pTransform,
G4double& pMin, G4double& pMax) const override;
/**
* Makes a clone of the object for use in multi-treading.
* @returns A pointer to the new cloned allocated solid.
*/
G4VSolid* Clone() const override;
/**
* Returns a generated polyhedron as graphical representations.
*/
G4Polyhedron* CreatePolyhedron() const override;
/**
* Copy constructor and assignment operator.
*/
G4UPara(const G4UPara& rhs);
G4UPara& operator=(const G4UPara& rhs);
private:
/**
* Checks input parameters.
*/
void CheckParameters();
/**
* Sets the side planes.
*/
void MakePlanes();
private:
G4double fTalpha,fTthetaCphi,fTthetaSphi;
struct { G4double a,b,c,d; } fPlanes[4];
};
// --------------------------------------------------------------------
// Inline methods
// --------------------------------------------------------------------
inline G4GeometryType G4UPara::GetEntityType() const
{
return "G4Para";
}
inline G4bool G4UPara::IsFaceted() const
{
return true;
}
#endif // G4GEOM_USE_USOLIDS
#endif