Gabriele Cosmo
241 lines
8.2 KiB
C++
241 lines
8.2 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// G4Trd
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//
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// Class description:
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//
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// A G4Trd is a trapezoid with the x and y dimensions varying along z
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// functions:
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//
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// Member Data:
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//
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// fDx1 Half-length along x at the surface positioned at -dz
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// fDx2 Half-length along x at the surface positioned at +dz
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// fDy1 Half-length along y at the surface positioned at -dz
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// fDy2 Half-length along y at the surface positioned at +dz
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// fDz Half-length along z axis
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// Author: Paul Kent (CERN), 12.01.1995 - Code converted to thick geometry
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// --------------------------------------------------------------------
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#ifndef G4TRD_HH
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#define G4TRD_HH
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#include "G4GeomTypes.hh"
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#if defined(G4GEOM_USE_USOLIDS)
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#define G4GEOM_USE_UTRD 1
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#endif
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#if defined(G4GEOM_USE_UTRD)
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#define G4UTrd G4Trd
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#include "G4UTrd.hh"
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#else
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#include "G4CSGSolid.hh"
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#include "G4Polyhedron.hh"
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/**
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* @brief G4Trd is a trapezoid with the X and Y dimensions varying along Z.
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*/
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class G4Trd : public G4CSGSolid
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{
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public:
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/**
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* Constructs a trapezoid with name, and half lengths.
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* @param[in] pName The name of the solid.
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* @param[in] pdx1 Half-length along X at the surface positioned at -dz.
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* @param[in] pdx2 Half-length along X at the surface positioned at +dz.
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* @param[in] pdy1 Half-length along Y at the surface positioned at -dz.
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* @param[in] pdy2 Half-length along Y at the surface positioned at +dz.
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* @param[in] pdz Half-length along Z axis.
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*/
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G4Trd( const G4String& pName,
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G4double pdx1, G4double pdx2,
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G4double pdy1, G4double pdy2,
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G4double pdz );
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/**
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* Default destructor.
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*/
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~G4Trd() override = default;
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/**
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* Accessors.
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*/
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inline G4double GetXHalfLength1() const;
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inline G4double GetXHalfLength2() const;
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inline G4double GetYHalfLength1() const;
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inline G4double GetYHalfLength2() const;
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inline G4double GetZHalfLength() const;
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/**
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* Modifiers.
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*/
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inline void SetXHalfLength1(G4double val);
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inline void SetXHalfLength2(G4double val);
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inline void SetYHalfLength1(G4double val);
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inline void SetYHalfLength2(G4double val);
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inline void SetZHalfLength(G4double val);
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/**
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* Sets all parameters, as for constructor. Checks and sets half-widths.
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*/
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void SetAllParameters ( G4double pdx1, G4double pdx2,
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G4double pdy1, G4double pdy2,
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G4double pdz );
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/**
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* Returning an estimation of the solid volume (capacity) and
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* surface area, in internal units.
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*/
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G4double GetCubicVolume() override;
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G4double GetSurfaceArea() override;
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/**
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* Dispatch method for parameterisation replication mechanism and
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* dimension computation.
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*/
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void ComputeDimensions( G4VPVParameterisation* p,
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const G4int n,
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const G4VPhysicalVolume* pRep ) override;
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/**
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* Computes the bounding limits of the solid.
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* @param[out] pMin The minimum bounding limit point.
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* @param[out] pMax The maximum bounding limit point.
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*/
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void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
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/**
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* Calculates the minimum and maximum extent of the solid, when under the
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* specified transform, and within the specified limits.
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* @param[in] pAxis The axis along which compute the extent.
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* @param[in] pVoxelLimit The limiting space dictated by voxels.
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* @param[in] pTransform The internal transformation applied to the solid.
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* @param[out] pMin The minimum extent value.
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* @param[out] pMax The maximum extent value.
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* @returns True if the solid is intersected by the extent region.
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*/
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G4bool CalculateExtent(const EAxis pAxis,
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const G4VoxelLimits& pVoxelLimit,
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const G4AffineTransform& pTransform,
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G4double& pMin, G4double& pMax) const override;
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/**
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* Concrete implementations of the expected query interfaces for
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* solids, as defined in the base class G4VSolid.
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*/
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EInside Inside( const G4ThreeVector& p ) const override;
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G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const override;
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G4double DistanceToIn( const G4ThreeVector& p,
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const G4ThreeVector& v ) const override;
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G4double DistanceToIn( const G4ThreeVector& p ) const override;
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G4double DistanceToOut( const G4ThreeVector& p,
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const G4ThreeVector& v,
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const G4bool calcNorm = false,
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G4bool* validNorm = nullptr,
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G4ThreeVector* n = nullptr ) const override;
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G4double DistanceToOut( const G4ThreeVector& p ) const override;
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/**
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* Returns the type ID, "G4Trd" of the solid.
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*/
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G4GeometryType GetEntityType() const override;
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/**
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* Returns a random point located and uniformly distributed on the
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* surface of the solid.
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*/
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G4ThreeVector GetPointOnSurface() const override;
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/**
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* Returns true as the solid has only planar faces.
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*/
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G4bool IsFaceted() const override;
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/**
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* Makes a clone of the object for use in multi-treading.
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* @returns A pointer to the new cloned allocated solid.
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*/
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G4VSolid* Clone() const override;
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/**
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* Streams the object contents to an output stream.
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*/
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std::ostream& StreamInfo( std::ostream& os ) const override;
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/**
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* Methods for creating graphical representations (i.e. for visualisation).
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*/
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void DescribeYourselfTo (G4VGraphicsScene& scene) const override;
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G4Polyhedron* CreatePolyhedron () const override;
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/**
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* Fake default constructor for usage restricted to direct object
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* persistency for clients requiring preallocation of memory for
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* persistifiable objects.
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*/
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G4Trd(__void__&);
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/**
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* Copy constructor and assignment operator.
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*/
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G4Trd(const G4Trd& rhs);
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G4Trd& operator=(const G4Trd& rhs);
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private:
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/**
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* Checks the input parameters.
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*/
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void CheckParameters();
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/**
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* Sets the side planes.
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*/
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void MakePlanes();
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/**
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* Algorithm for SurfaceNormal() following the original specification
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* for points not on the surface.
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*/
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G4ThreeVector ApproxSurfaceNormal( const G4ThreeVector& p ) const;
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private:
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G4double halfCarTolerance;
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G4double fDx1,fDx2,fDy1,fDy2,fDz,fHx,fHy;
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struct { G4double a,b,c,d; } fPlanes[4];
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};
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#include "G4Trd.icc"
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#endif
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#endif
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