Gabriele Cosmo
215 lines
7.6 KiB
C++
215 lines
7.6 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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// G4GenericPolycone
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//
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// Class description:
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//
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// Implementing a GenericPolycone constructed by points with (r,z)
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// coordinates and allowing Z 'go back'.
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//
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// G4GenericPolycone( const G4String& name,
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// G4double phiStart, // initial phi starting angle
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// G4double phiTotal, // total phi angle
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// G4int numRZ, // number corners in r,z space
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// const G4double r[], // r coordinate of these corners
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// const G4double z[]) // z coordinate of these corners
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// Authors: T.Nikitina, G.Cosmo (CERN), 29.10.2013 - Created
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// --------------------------------------------------------------------
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#ifndef G4GENERICPOLYCONE_HH
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#define G4GENERICPOLYCONE_HH
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#include "G4GeomTypes.hh"
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#if defined(G4GEOM_USE_USOLIDS)
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#define G4GEOM_USE_UGENERICPOLYCONE 1
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#endif
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#if defined(G4GEOM_USE_UGENERICPOLYCONE)
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#define G4UGenericPolycone G4GenericPolycone
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#include "G4UGenericPolycone.hh"
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#else
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#include "G4VCSGfaceted.hh"
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#include "G4PolyconeSide.hh"
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class G4EnclosingCylinder;
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class G4ReduciblePolygon;
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class G4VCSGface;
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/**
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* @brief G4GenericPolycone is a Polycone shape where the composing Z planes
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* positions, in their order of definition, may not be monotically increasing,
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* i.e. may also decrease.
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*/
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class G4GenericPolycone : public G4VCSGfaceted
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{
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public:
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/**
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* Constructs a generic polycone shape, given its parameters.
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* @param[in] name The solid name.
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* @param[in] phiStart The initial Phi starting angle.
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* @param[in] phiTotal The total Phi angle.
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* @param[in] numRZ Number of corners in r,Z space.
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* @param[in] r Vector of r coordinate of corners.
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* @param[in] z Vector of Z coordinate of corners.
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*/
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G4GenericPolycone( const G4String& name,
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G4double phiStart,
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G4double phiTotal,
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G4int numRZ,
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const G4double r[],
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const G4double z[] );
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/**
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* Destructor.
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*/
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~G4GenericPolycone() override;
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/**
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* Accessors.
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*/
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inline G4double GetStartPhi() const;
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inline G4double GetEndPhi() 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 G4bool IsOpen() const;
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inline G4int GetNumRZCorner() const;
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inline G4PolyconeSideRZ GetCorner(G4int index) const;
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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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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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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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/**
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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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* 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 the type ID, "G4GenericPolycone" of the solid.
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*/
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G4GeometryType GetEntityType() 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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* Returns a pointer to a polyhedron for use in visualisation.
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*/
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G4Polyhedron* CreatePolyhedron() const override;
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/**
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* Does nothing. Reset of parameters (for use in divisions) is not
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* allowed for a generic polycone. Issues a warning and just returns true.
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*/
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G4bool Reset();
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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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G4GenericPolycone(__void__&);
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/**
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* Copy constructor and assignment operator.
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*/
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G4GenericPolycone( const G4GenericPolycone& source );
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G4GenericPolycone& operator=( const G4GenericPolycone& source );
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private:
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/**
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* Generic initializer, called by constructor.
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*/
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void Create( G4double phiStart, // initial phi starting angle
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G4double phiTotal, // total phi angle
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G4ReduciblePolygon* rz ); // r/z coordinate of these corners
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/**
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* Utility for copying contents, used in copy constructor and assignment
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* operator.
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*/
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void CopyStuff( const G4GenericPolycone& source );
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/**
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* Auxiliary method for sampling random points on surface.
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* Sets the vector of surface elements.
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*/
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void SetSurfaceElements() const;
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private:
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/** Original parameters. */
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G4double startPhi; // Starting phi value (0 < phiStart < 2pi)
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G4double endPhi; // end phi value (0 < endPhi-phiStart < 2pi)
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G4bool phiIsOpen = false; // true if there is a phi segment
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G4int numCorner; // number RZ points
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G4PolyconeSideRZ* corners = nullptr; // corner r,z points
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G4EnclosingCylinder* enclosingCylinder = nullptr; // Our quick test
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struct surface_element { G4double area = 0.; G4int i0 = 0, i1 = 0, i2 = 0; };
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mutable std::vector<surface_element>* fElements = nullptr;
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};
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#include "G4GenericPolycone.icc"
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#endif
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#endif
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