Gabriele Cosmo
146 lines
4.9 KiB
C++
146 lines
4.9 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: G4Cons.hh,v 1.2 1999/12/15 14:50:06 gunter Exp $
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// GEANT4 tag $Name: geant4-01-01 $
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//
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// class G4Cons
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//
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// A G4Cons is, in the general case, a Phi segment of a cone, with half-length
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// fDz, inner and outer radii specified at -fDz and +fDz. The Phi segment is
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// described by a starting fSPhi angle, and the +fDPhi delta angle for the shape.
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// If the delta angle is >=2*M_PI, the shape is treated as continuous in Phi
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//
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// Member Data:
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//
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// fRmin1 inside radius at -fDz
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// fRmin2 inside radius at +fDz
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// fRmax1 outside radius at -fDz
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// fRmax2 outside radius at +fDz
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// fDz half length in z
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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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// 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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// History:
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// 19.3.94 P.Kent Old C++ code converted to tolerant geometry
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// 13.9.96 V.Grichine Final modifications to commit
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#ifndef G4Cons_HH
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#define G4Cons_HH
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#include "G4CSGSolid.hh"
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class G4Cons : public G4CSGSolid
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{
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public:
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G4Cons(const G4String& pName,
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G4double pRmin1, G4double pRmax1,
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G4double pRmin2, G4double pRmax2,
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G4double pDz,
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G4double pSPhi, G4double pDPhi);
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virtual ~G4Cons() ;
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// Access functions
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G4double GetInnerRadiusMinusZ() const { return fRmin1 ; }
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G4double GetOuterRadiusMinusZ() const { return fRmax1 ; }
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G4double GetInnerRadiusPlusZ() const { return fRmin2 ; }
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G4double GetOuterRadiusPlusZ() const { return fRmax2 ; }
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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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// Modifier functions
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void SetInnerRadiusMinusZ( G4double Rmin1 ) { fRmin1= Rmin1 ; }
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void SetOuterRadiusMinusZ( G4double Rmax1 ) { fRmax1= Rmax1 ; }
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void SetInnerRadiusPlusZ ( G4double Rmin2 ) { fRmin2= Rmin2 ; }
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void SetOuterRadiusPlusZ ( G4double Rmax2 ) { fRmax2= Rmax2 ; }
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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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// Other methods
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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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virtual G4GeometryType GetEntityType() const { return G4String("G4Cons"); }
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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 GetRmin1() const { return GetInnerRadiusMinusZ(); }
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G4double GetRmax1() const { return GetOuterRadiusMinusZ(); }
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G4double GetRmin2() const { return GetInnerRadiusPlusZ(); }
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G4double GetRmax2() const { return GetOuterRadiusPlusZ(); }
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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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// 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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private:
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G4double fRmin1,fRmin2,
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fRmax1,fRmax2,
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fDz,
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fSPhi,fDPhi;
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};
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#endif
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