Gabriele Cosmo
155 lines
5.0 KiB
C++
155 lines
5.0 KiB
C++
// This code implementation is the intellectual property of
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// the 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: G4Tubs.hh,v 1.5 2000/11/02 17:06:39 gcosmo Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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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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//
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// G4Tubs
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//
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// Class description:
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//
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// A tube or tube segment with curved sides parallel to
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// the z-axis. The tube has a specified half-length along
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// the z axis, about which it is centred, and a given
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// minimum and maximum radius. A minimum radius of 0
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// signifies a filled tube /cylinder. The tube segment is
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// specified by starting and delta angles for phi, with 0
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// being the +x axis, PI/2 the +y axis.
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// A delta angle of 2PI signifies a complete, unsegmented
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// tube/cylinder.
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//
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// Member functions:
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//
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// As inherited from G4VSolid+
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//
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// G4Tubs(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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//
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// - Construct a tubs with the given name and dimensions.
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// The angles are provided is radians.
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//
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//
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// Protected:
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//
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// G4ThreeVectorList*
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// CreateRotatedVertices(const G4AffineTransform& pTransform) const
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//
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// - Create the List of transformed vertices in the format required
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// for G4VSolid:: ClipCrossSection and ClipBetweenSections.
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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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// fDz half length in z
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//
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// fSPhi The starting phi angle in radians,
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// adjusted such the fSPhi+fDPhi<=2PI,
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// fSPhi>-2PI
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//
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// fDPhi Delta angle of the segment in radians
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// History:
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// 10.8.95 P.Kent General cleanup, use G4VSolid extent helper functions
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// to CaluclateExtent
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// 23.1.94 P.Kent Converted to `tolerant' geometry
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// 19.07.96 J.Allison G4GraphicsScene - see G4Box.
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// 22.07.96 J.Allison Changed SendPolyhedronTo to CreatePolyhedron.
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// --------------------------------------------------------------------
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#ifndef G4TUBS_HH
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#define G4TUBS_HH
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#include "G4CSGSolid.hh"
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class G4Tubs : public G4CSGSolid
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{
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public:
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G4Tubs(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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virtual ~G4Tubs();
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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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G4double GetInnerRadius () const { return fRMin; }
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G4double GetOuterRadius () const { return fRMax; }
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G4double GetZHalfLength () const { return fDz ; }
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G4double GetStartPhiAngle () const { return fSPhi; }
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G4double GetDeltaPhiAngle () const { return fDPhi; }
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void SetInnerRadius (G4double newRMin) { fRMin= newRMin; }
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void SetOuterRadius (G4double newRMax) { fRMax= newRMax; }
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void SetZHalfLength (G4double newDz) { fDz= newDz ; }
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void SetStartPhiAngle (G4double newSPhi) { fSPhi= newSPhi; }
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void SetDeltaPhiAngle (G4double newDPhi) { fDPhi= newDPhi; }
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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,const G4ThreeVector& v) const;
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G4double DistanceToIn(const G4ThreeVector& p) const;
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G4double DistanceToOut(const G4ThreeVector& p,const G4ThreeVector& v,
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const G4bool calcNorm=G4bool(false),
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G4bool *validNorm=0,G4ThreeVector *n=0) const;
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G4double DistanceToOut(const G4ThreeVector& p) const;
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G4GeometryType GetEntityType() const { return G4String("G4Tubs"); }
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// Naming method (pseudo-RTTI : run-time type identification)
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// Visualisation functions
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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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// Older names for access functions
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G4double GetRMin() const { return GetInnerRadius(); } // fRMin
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G4double GetRMax() const { return GetOuterRadius(); } // fRMax
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G4double GetDz () const { return GetZHalfLength() ; } // fDz
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G4double GetSPhi() const { return GetStartPhiAngle(); } // fSPhi
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G4double GetDPhi() const { return GetDeltaPhiAngle(); } // fDPhi
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protected:
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G4ThreeVectorList*
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CreateRotatedVertices(const G4AffineTransform& pTransform) const;
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G4double fRMin,fRMax,fDz,fSPhi,fDPhi;
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// Used by distanceToOut
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enum ESide {kNull,kRMin,kRMax,kSPhi,kEPhi,kPZ,kMZ};
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// used by normal
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enum ENorm {kNRMin,kNRMax,kNSPhi,kNEPhi,kNZ};
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};
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#endif
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