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geant4/source/geometry/solids/CSG/include/G4Cons.hh
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2016-12-09 12:35:28 +01:00

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//
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//
// $Id: G4Cons.hh 100820 2016-11-02 15:18:48Z gcosmo $
//
//
// --------------------------------------------------------------------
// GEANT 4 class header file
//
// G4Cons
//
// Class description:
//
// A G4Cons is, in the general case, a Phi segment of a cone, with
// half-length fDz, inner and outer radii specified at -fDz and +fDz.
// The Phi segment is described by a starting fSPhi angle, and the
// +fDPhi delta angle for the shape.
// If the delta angle is >=2*pi, the shape is treated as continuous
// in Phi
//
// Member Data:
//
// fRmin1 inside radius at -fDz
// fRmin2 inside radius at +fDz
// fRmax1 outside radius at -fDz
// fRmax2 outside radius at +fDz
// fDz half length in z
//
// fSPhi starting angle of the segment in radians
// fDPhi delta angle of the segment in radians
//
// fPhiFullCone Boolean variable used for indicate the Phi Section
//
// Note:
// Internally fSPhi & fDPhi are adjusted so that fDPhi<=2PI,
// and fDPhi+fSPhi<=2PI. This enables simpler comparisons to be
// made with (say) Phi of a point.
// History:
// 19.3.94 P.Kent: Old C++ code converted to tolerant geometry
// 13.9.96 V.Grichine: Final modifications to commit
// --------------------------------------------------------------------
#ifndef G4Cons_HH
#define G4Cons_HH
#if defined(G4GEOM_USE_USOLIDS)
#define G4GEOM_USE_UCONS 1
#endif
#if defined(G4GEOM_USE_UCONS)
#define G4UCons G4Cons
#include "G4UCons.hh"
#else
#include <CLHEP/Units/PhysicalConstants.h>
#include "G4CSGSolid.hh"
#include "G4Polyhedron.hh"
class G4Cons : public G4CSGSolid
{
public: // with description
G4Cons(const G4String& pName,
G4double pRmin1, G4double pRmax1,
G4double pRmin2, G4double pRmax2,
G4double pDz,
G4double pSPhi, G4double pDPhi);
//
// Constructs a cone with the given name and dimensions
~G4Cons() ;
//
// Destructor
// Accessors
inline G4double GetInnerRadiusMinusZ() const;
inline G4double GetOuterRadiusMinusZ() const;
inline G4double GetInnerRadiusPlusZ() const;
inline G4double GetOuterRadiusPlusZ() const;
inline G4double GetZHalfLength() const;
inline G4double GetStartPhiAngle() const;
inline G4double GetDeltaPhiAngle() const;
inline G4double GetSinStartPhi() const;
inline G4double GetCosStartPhi() const;
inline G4double GetSinEndPhi() const;
inline G4double GetCosEndPhi() const;
// Modifiers
inline void SetInnerRadiusMinusZ (G4double Rmin1 );
inline void SetOuterRadiusMinusZ (G4double Rmax1 );
inline void SetInnerRadiusPlusZ (G4double Rmin2 );
inline void SetOuterRadiusPlusZ (G4double Rmax2 );
inline void SetZHalfLength (G4double newDz );
inline void SetStartPhiAngle (G4double newSPhi, G4bool trig=true);
inline void SetDeltaPhiAngle (G4double newDPhi);
// Other methods for solid
inline G4double GetCubicVolume();
inline G4double GetSurfaceArea();
void ComputeDimensions( G4VPVParameterisation* p,
const G4int n,
const G4VPhysicalVolume* pRep );
void Extent(G4ThreeVector& pMin, G4ThreeVector& pMax) const;
G4bool CalculateExtent( const EAxis pAxis,
const G4VoxelLimits& pVoxelLimit,
const G4AffineTransform& pTransform,
G4double& pMin, G4double& pMax ) const;
EInside Inside( const G4ThreeVector& p ) const;
G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const;
G4double DistanceToIn (const G4ThreeVector& p,
const G4ThreeVector& v) const;
G4double DistanceToIn (const G4ThreeVector& p) const;
G4double DistanceToOut(const G4ThreeVector& p,
const G4ThreeVector& v,
const G4bool calcNorm=G4bool(false),
G4bool *validNorm=0,
G4ThreeVector *n=0) const;
G4double DistanceToOut(const G4ThreeVector& p) const;
G4GeometryType GetEntityType() const;
G4ThreeVector GetPointOnSurface() const;
G4VSolid* Clone() const;
std::ostream& StreamInfo(std::ostream& os) const;
// Visualisation functions
void DescribeYourselfTo( G4VGraphicsScene& scene ) const;
G4Polyhedron* CreatePolyhedron() const;
public: // without description
G4Cons(__void__&);
//
// Fake default constructor for usage restricted to direct object
// persistency for clients requiring preallocation of memory for
// persistifiable objects.
G4Cons(const G4Cons& rhs);
G4Cons& operator=(const G4Cons& rhs);
// Copy constructor and assignment operator.
// Old access functions
inline G4double GetRmin1() const;
inline G4double GetRmax1() const;
inline G4double GetRmin2() const;
inline G4double GetRmax2() const;
inline G4double GetDz() const;
inline G4double GetSPhi() const;
inline G4double GetDPhi() const;
private:
inline void Initialize();
//
// Reset relevant values to zero
inline void CheckSPhiAngle(G4double sPhi);
inline void CheckDPhiAngle(G4double dPhi);
inline void CheckPhiAngles(G4double sPhi, G4double dPhi);
//
// Reset relevant flags and angle values
inline void InitializeTrigonometry();
//
// Recompute relevant trigonometric values and cache them
G4ThreeVector ApproxSurfaceNormal(const G4ThreeVector& p) const;
//
// Algorithm for SurfaceNormal() following the original
// specification for points not on the surface
private:
// Used by distanceToOut
//
enum ESide {kNull,kRMin,kRMax,kSPhi,kEPhi,kPZ,kMZ};
// used by normal
//
enum ENorm {kNRMin,kNRMax,kNSPhi,kNEPhi,kNZ};
G4double kRadTolerance, kAngTolerance;
//
// Radial and angular tolerances
G4double fRmin1, fRmin2, fRmax1, fRmax2, fDz, fSPhi, fDPhi;
//
// Radial and angular dimensions
G4double sinCPhi, cosCPhi, cosHDPhiOT, cosHDPhiIT,
sinSPhi, cosSPhi, sinEPhi, cosEPhi;
//
// Cached trigonometric values
G4bool fPhiFullCone;
//
// Flag for identification of section or full cone
G4double halfCarTolerance, halfRadTolerance, halfAngTolerance;
//
// Cached half tolerance values
};
#include "G4Cons.icc"
#endif
#endif