Gabriele Cosmo
185 lines
7.0 KiB
C++
185 lines
7.0 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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// G4Ellipsoid
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//
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// Class description:
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//
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// A G4Ellipsoid is an ellipsoidal solid, optionally cut at a given z
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//
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// Member Data:
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//
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// xSemiAxis semi-axis, X
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// ySemiAxis semi-axis, Y
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// zSemiAxis semi-axis, Z
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// zBottomCut lower cut in Z (solid lies above this plane)
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// zTopCut upper cut in Z (solid lies below this plane)
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// 10.11.1999 G.Horton-Smith (Caltech, USA) - First implementation
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// 10.02.2005 G.Guerrieri (INFN Genova, Italy) - Revision
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// 15.12.2019 E.Tcherniaev - Complete revision
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// --------------------------------------------------------------------
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#ifndef G4ELLIPSOID_HH
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#define G4ELLIPSOID_HH
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#include "G4GeomTypes.hh"
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#if defined(G4GEOM_USE_USOLIDS)
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#define G4GEOM_USE_UELLIPSOID 1
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#endif
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#if (defined(G4GEOM_USE_UELLIPSOID) && defined(G4GEOM_USE_SYS_USOLIDS))
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#define G4UEllipsoid G4Ellipsoid
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#include "G4UEllipsoid.hh"
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#else
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#include <CLHEP/Units/PhysicalConstants.h>
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#include "G4VSolid.hh"
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#include "G4Polyhedron.hh"
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class G4Ellipsoid : public G4VSolid
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{
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public:
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G4Ellipsoid(const G4String& name,
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G4double xSemiAxis,
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G4double ySemiAxis,
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G4double zSemiAxis,
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G4double zBottomCut = 0.,
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G4double zTopCut = 0.);
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~G4Ellipsoid() override;
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// Accessors
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inline G4double GetDx() const;
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inline G4double GetDy() const;
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inline G4double GetDz() const;
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inline G4double GetSemiAxisMax (G4int i) const;
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inline G4double GetZBottomCut() const;
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inline G4double GetZTopCut() const;
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// Modifiers
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inline void SetSemiAxis (G4double x, G4double y, G4double z);
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inline void SetZCuts (G4double newzBottomCut, G4double newzTopCut);
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// Standard methods
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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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void BoundingLimits(G4ThreeVector& pMin, G4ThreeVector& pMax) const override;
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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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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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G4GeometryType GetEntityType() const override;
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G4VSolid* Clone() const override;
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std::ostream& StreamInfo(std::ostream& os) const override;
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G4double GetCubicVolume() override;
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G4double GetSurfaceArea() override;
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G4ThreeVector GetPointOnSurface() const override;
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// Visualisation methods
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void DescribeYourselfTo(G4VGraphicsScene& scene) const override;
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G4VisExtent GetExtent() const override;
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G4Polyhedron* CreatePolyhedron() const override;
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G4Polyhedron* GetPolyhedron () const override;
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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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G4Ellipsoid(__void__&);
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// Copy constructorassignment operator
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G4Ellipsoid(const G4Ellipsoid& rhs);
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// Assignment
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G4Ellipsoid& operator=(const G4Ellipsoid& rhs);
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private:
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// Check parameters and set cached values
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void CheckParameters();
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// Return normal to surface closest to p
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G4ThreeVector ApproxSurfaceNormal(const G4ThreeVector& p) const;
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// Calculate area of lateral surface
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G4double LateralSurfaceArea() const;
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private:
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// Ellipsoid parameters
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G4double fDx; // X semi-axis
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G4double fDy; // Y semi-axis
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G4double fDz; // Z semi-axis
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G4double fZBottomCut; // Bottom cut in Z
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G4double fZTopCut; // Top cut in Z
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// Precalculated cached values
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G4double halfTolerance; // Surface tolerance
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G4double fXmax; // X extent
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G4double fYmax; // Y extent
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G4double fRsph; // Radius of bounding sphere
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G4double fR; // Radius of sphere after scaling
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G4double fSx; // X scale factor
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G4double fSy; // Y scale factor
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G4double fSz; // Z scale factor
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G4double fZMidCut; // Middle position between cuts after scaling
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G4double fZDimCut; // Half distance between cut after scaling
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G4double fQ1; // 1st coefficient in approximation of dist = Q1*(x^2+y^2+z^2) - Q2
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G4double fQ2; // 2nd coefficient in approximation of dist = Q1*(x^2+y^2+z^2) - Q2
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G4double fCubicVolume = 0.0; // Volume
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G4double fSurfaceArea = 0.0; // Surface area
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mutable G4double fLateralArea = 0.0; // Lateral surface area
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mutable G4bool fRebuildPolyhedron = false;
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mutable G4Polyhedron* fpPolyhedron = nullptr;
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};
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#include "G4Ellipsoid.icc"
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#endif // defined(G4GEOM_USE_UELLIPSOID) && defined(G4GEOM_USE_SYS_USOLIDS)
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#endif // G4ELLIPSOID_HH
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