Gabriele Cosmo
198 lines
6.7 KiB
C++
198 lines
6.7 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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//
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// $Id: G4Sphere.hh,v 1.20 2007/05/18 07:38:00 gcosmo Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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//
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// --------------------------------------------------------------------
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// GEANT 4 class header file
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//
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// G4Sphere
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//
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// Class description:
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//
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// A G4Sphere is, in the general case, section of a spherical shell,
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// between specified phi and theta angles
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//
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// The phi and theta segments are described by a starting angle,
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// and the +ve delta angle for the shape.
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// If the delta angle is >=2*pi, or >=pi the shape is treated as
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// continuous in phi or theta respectively.
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//
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// Theta must lie between 0-pi (incl).
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//
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// Member Data:
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//
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// fRmin inner radius
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// fRmax outer radius
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//
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// fSPhi starting angle of the segment in radians
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// fDPhi delta angle of the segment in radians
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//
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// fSTheta starting angle of the segment in radians
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// fDTheta delta angle of the segment in radians
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//
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//
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// Note:
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// Internally fSPhi & fDPhi are adjusted so that fDPhi<=2PI,
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// and fDPhi+fSPhi<=2PI. This enables simpler comparisons to be
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// made with (say) Phi of a point.
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// History:
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// 28.3.94 P.Kent: old C++ code converted to tolerant geometry
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// 17.9.96 V.Grichine: final modifications to commit
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// --------------------------------------------------------------------
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#ifndef G4Sphere_HH
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#define G4Sphere_HH
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#include "G4CSGSolid.hh"
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class G4VisExtent;
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class G4Sphere : public G4CSGSolid
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{
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public: // with description
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G4Sphere(const G4String& pName,
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G4double pRmin, G4double pRmax,
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G4double pSPhi, G4double pDPhi,
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G4double pSTheta, G4double pDTheta);
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virtual ~G4Sphere() ;
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// Accessors
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inline G4double GetInsideRadius () const;
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inline G4double GetOuterRadius () const;
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inline G4double GetStartPhiAngle () const;
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inline G4double GetDeltaPhiAngle () const;
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inline G4double GetStartThetaAngle() const;
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inline G4double GetDeltaThetaAngle() const;
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// Modifiers
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inline void SetInsideRadius (G4double newRmin);
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inline void SetOuterRadius (G4double newRmax);
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inline void SetStartPhiAngle (G4double newSphi);
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inline void SetDeltaPhiAngle (G4double newDphi);
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inline void SetStartThetaAngle(G4double newSTheta);
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inline void SetDeltaThetaAngle(G4double newDTheta);
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// Methods for solid
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inline G4double GetCubicVolume();
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inline G4double GetSurfaceArea();
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void ComputeDimensions( G4VPVParameterisation* p,
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const G4int n,
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const G4VPhysicalVolume* pRep);
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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;
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EInside Inside(const G4ThreeVector& p) const;
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G4ThreeVector SurfaceNormal( const G4ThreeVector& p) const;
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G4double DistanceToIn(const G4ThreeVector& p,
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const G4ThreeVector& v) const;
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G4double DistanceToIn(const G4ThreeVector& p) const;
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G4double DistanceToOut(const G4ThreeVector& p,
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const G4ThreeVector& v,
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const G4bool calcNorm=G4bool(false),
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G4bool *validNorm=0,
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G4ThreeVector *n=0) const;
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G4double DistanceToOut(const G4ThreeVector& p) const;
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G4GeometryType GetEntityType() const;
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G4ThreeVector GetPointOnSurface() const;
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std::ostream& StreamInfo(std::ostream& os) const;
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// Visualisation functions
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G4VisExtent GetExtent () const;
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void DescribeYourselfTo(G4VGraphicsScene& scene) const;
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G4Polyhedron* CreatePolyhedron() const;
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G4NURBS* CreateNURBS() const;
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public: // without description
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G4Sphere(__void__&);
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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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// Old access functions
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inline G4double GetRmin() const;
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inline G4double GetRmax() const;
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inline G4double GetSPhi() const;
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inline G4double GetDPhi() const;
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inline G4double GetSTheta() const;
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inline G4double GetDTheta() const;
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protected:
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G4ThreeVectorList*
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CreateRotatedVertices(const G4AffineTransform& pTransform,
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G4int& noPolygonVertices) const;
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// Used by distanceToOut
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enum ESide {kNull,kRMin,kRMax,kSPhi,kEPhi,kSTheta,kETheta};
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// used by normal
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enum ENorm {kNRMin,kNRMax,kNSPhi,kNEPhi,kNSTheta,kNETheta};
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private:
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G4ThreeVector ApproxSurfaceNormal( const G4ThreeVector& p) const;
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// Algorithm for SurfaceNormal() following the original
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// specification for points not on the surface
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private:
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G4double kAngTolerance, kRadTolerance;
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G4double fRmin,fRmax,
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fSPhi,fDPhi,
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fSTheta,fDTheta;
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G4double fEpsilon;
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};
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#include "G4Sphere.icc"
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#endif
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