Gabriele Cosmo
148 lines
4.7 KiB
C++
148 lines
4.7 KiB
C++
// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4Sphere.hh,v 2.0 1998/07/02 17:02:02 gunter Exp $
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// GEANT4 tag $Name: geant4-00 $
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//
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// class G4Sphere
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//
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// A G4Sphere is, in the general case, section of a spherical shell, between
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// specified phii 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*M_PI, or >=M_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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//
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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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//
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//
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//
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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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#ifndef G4Sphere_HH
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#define G4Sphere_HH
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#include "G4CSGSolid.hh"
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class G4Sphere : public G4CSGSolid {
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public:
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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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// Access functions
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G4double GetInsideRadius () const { return fRmin; }
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G4double GetOuterRadius () const { return fRmax; }
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G4double GetStartPhiAngle () const { return fSPhi; }
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G4double GetDeltaPhiAngle () const { return fDPhi; }
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G4double GetStartThetaAngle() const { return fSTheta; }
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G4double GetDeltaThetaAngle() const { return fDTheta; }
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void SetInsideRadius (G4double newRmin) { fRmin= newRmin; }
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void SetOuterRadius (G4double newRmax) { fRmax= newRmax; }
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void SetStartPhiAngle (G4double newSphi) { fSPhi= newSphi; }
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void SetDeltaPhiAngle (G4double newDphi) { fDPhi= newDphi; }
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void SetStartThetaAngle(G4double newSTheta) { fSTheta=newSTheta; }
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void SetDeltaThetaAngle(G4double newDTheta) { fDTheta=newDTheta; }
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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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// Naming method (pseudo-RTTI : run-time type identification)
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virtual G4GeometryType GetEntityType() const { return G4String("G4Sphere"); }
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// Visualisation functions
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void DescribeYourselfTo(G4VGraphicsScene& scene) const;
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G4VisExtent GetExtent() const;
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G4Polyhedron* CreatePolyhedron() const;
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G4NURBS* CreateNURBS() const;
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// Old access functions
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G4double GetRmin() const { return GetInsideRadius (); }
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G4double GetRmax() const { return GetOuterRadius (); }
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G4double GetSPhi() const { return GetStartPhiAngle (); }
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G4double GetDPhi() const { return GetDeltaPhiAngle (); }
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G4double GetSTheta() const { return GetStartThetaAngle(); }
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G4double GetDTheta() const { return GetDeltaThetaAngle(); }
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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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G4double fRmin,fRmax,
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fSPhi,fDPhi,
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fSTheta,fDTheta;
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};
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#endif
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