Gabriele Cosmo
263 lines
9.0 KiB
C++
263 lines
9.0 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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// G4CutTubs
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//
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// Class description:
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//
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// G4CutTubs is a tube with possible cuts in +-Z.
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//
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// G4CutTubs(pName,pRMin,pRMax,pDZ,pSPhi,pEPhi,pLowNorm,pHighNorm)
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// pName,pRMin,pRMax,pDZ,pSPhi,pEPhi are the same as for G4Tubs,
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// pLowNorm=Outside Normal at -Z
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// pHighNorm=Outside Normal at +Z.
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// Author: Tatiana Nikitina (CERN), 31.10.2011
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// Implementation adapted from G4Tubs and TGEo/Ctube implementations.
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// --------------------------------------------------------------------
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#ifndef G4CUTTUBS_HH
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#define G4CUTTUBS_HH
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#include "G4GeomTypes.hh"
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#if defined(G4GEOM_USE_USOLIDS)
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#define G4GEOM_USE_UCTUBS 1
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#endif
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#if defined(G4GEOM_USE_UCTUBS)
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#define G4UCutTubs G4CutTubs
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#include "G4UCutTubs.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 G4CutTubs is a tube with possible cuts in +-Z.
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*/
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class G4CutTubs : public G4CSGSolid
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{
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public:
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/**
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* Constructs a tube with the given name and dimensions.
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* @param[in] pName The name of the solid.
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* @param[in] pRmin Inner radius.
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* @param[in] pRmax Outer radius.
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* @param[in] pDZ Half length in Z.
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* @param[in] pSPhi Starting angle of the segment in radians.
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* @param[in] pDPhi Delta angle of the segment in radians.
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* @param[in] pLowNorm Outside normal vector at -Z.
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* @param[in] pHighNorm Outside normal vector at +Z.
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*/
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G4CutTubs( const G4String& pName,
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G4double pRMin,
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G4double pRMax,
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G4double pDz,
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G4double pSPhi,
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G4double pDPhi,
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G4ThreeVector pLowNorm,
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G4ThreeVector pHighNorm );
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/**
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* Default destructor.
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*/
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~G4CutTubs() override = default;
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/**
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* Accessors.
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*/
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inline G4double GetInnerRadius () const;
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inline G4double GetOuterRadius () const;
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inline G4double GetZHalfLength () const;
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inline G4double GetStartPhiAngle () const;
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inline G4double GetDeltaPhiAngle () const;
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inline G4double GetSinStartPhi () const;
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inline G4double GetCosStartPhi () const;
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inline G4double GetSinEndPhi () const;
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inline G4double GetCosEndPhi () const;
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inline G4ThreeVector GetLowNorm () const;
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inline G4ThreeVector GetHighNorm () const;
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/**
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* Modifiers.
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*/
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inline void SetInnerRadius (G4double newRMin);
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inline void SetOuterRadius (G4double newRMax);
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inline void SetZHalfLength (G4double newDz);
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inline void SetStartPhiAngle (G4double newSPhi, G4bool trig=true);
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inline void SetDeltaPhiAngle (G4double newDPhi);
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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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* 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, 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, "G4CutTubs" 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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* 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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G4CutTubs(__void__&);
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/**
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* Copy constructor and assignment operator.
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*/
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G4CutTubs(const G4CutTubs& rhs) = default;
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G4CutTubs& operator=(const G4CutTubs& rhs);
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protected:
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/**
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* Resets relevant values to zero.
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*/
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inline void Initialize();
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/**
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* Reset relevant flags and angle values.
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*/
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inline void CheckSPhiAngle(G4double sPhi);
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inline void CheckDPhiAngle(G4double dPhi);
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inline void CheckPhiAngles(G4double sPhi, G4double dPhi);
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/**
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* Recomputes relevant trigonometric values and caches them.
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*/
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inline void InitializeTrigonometry();
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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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/**
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* Checks if the cutted planes are crossing.
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* @returns True if the solid is ill defined.
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*/
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G4bool IsCrossingCutPlanes() const;
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/**
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* Gets the Z value of the point "p" on the cut plane.
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*/
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G4double GetCutZ(const G4ThreeVector& p) const;
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private:
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/** Radial and angular tolerances. */
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G4double kRadTolerance, kAngTolerance;
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/** Radial and angular dimensions. */
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G4double fRMin, fRMax, fDz, fSPhi, fDPhi;
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mutable G4double fZMin, fZMax;
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/** Cached trigonometric values. */
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G4double sinCPhi, cosCPhi, cosHDPhi, cosHDPhiOT, cosHDPhiIT,
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sinSPhi, cosSPhi, sinEPhi, cosEPhi;
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/** Flag for identification of section or full tube. */
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G4bool fPhiFullCutTube = false;
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/** Cached half tolerance values. */
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G4double halfCarTolerance, halfRadTolerance, halfAngTolerance;
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/** Normals of Cut at -/+ Dz. */
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G4ThreeVector fLowNorm, fHighNorm;
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};
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#include "G4CutTubs.icc"
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#endif
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#endif
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