| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: G4Tubs.hh,v 1.21 2008/11/06 10:55:40 gcosmo Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $
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| 29 | //
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| 30 | //
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| 31 | // --------------------------------------------------------------------
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| 32 | // GEANT 4 class header file
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| 33 | //
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| 34 | //
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| 35 | // G4Tubs
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| 36 | //
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| 37 | // Class description:
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| 38 | //
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| 39 | // A tube or tube segment with curved sides parallel to
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| 40 | // the z-axis. The tube has a specified half-length along
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| 41 | // the z-axis, about which it is centered, and a given
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| 42 | // minimum and maximum radius. A minimum radius of 0
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| 43 | // corresponds to filled tube /cylinder. The tube segment is
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| 44 | // specified by starting and delta angles for phi, with 0
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| 45 | // being the +x axis, PI/2 the +y axis.
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| 46 | // A delta angle of 2PI signifies a complete, unsegmented
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| 47 | // tube/cylinder.
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| 48 | //
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| 49 | // Member Data:
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| 50 | //
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| 51 | // fRMin Inner radius
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| 52 | // fRMax Outer radius
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| 53 | // fDz half length in z
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| 54 | //
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| 55 | // fSPhi The starting phi angle in radians,
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| 56 | // adjusted such that fSPhi+fDPhi<=2PI, fSPhi>-2PI
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| 57 | //
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| 58 | // fDPhi Delta angle of the segment.
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| 59 | //
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| 60 | // fPhiFullTube Boolean variable used for indicate the Phi Section
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| 61 |
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| 62 | // History:
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| 63 | // 10.08.95 P.Kent: General cleanup, use G4VSolid extent helper functions
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| 64 | // to CalculateExtent()
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| 65 | // 23.01.94 P.Kent: Converted to `tolerant' geometry
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| 66 | // 19.07.96 J.Allison: G4GraphicsScene - see G4Box
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| 67 | // 22.07.96 J.Allison: Changed SendPolyhedronTo to CreatePolyhedron
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| 68 | // --------------------------------------------------------------------
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| 69 |
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| 70 | #ifndef G4TUBS_HH
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| 71 | #define G4TUBS_HH
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| 72 |
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| 73 | #include "G4CSGSolid.hh"
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| 74 |
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| 75 | class G4Tubs : public G4CSGSolid
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| 76 | {
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| 77 | public: // with description
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| 78 |
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| 79 | G4Tubs( const G4String& pName,
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| 80 | G4double pRMin,
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| 81 | G4double pRMax,
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| 82 | G4double pDz,
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| 83 | G4double pSPhi,
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| 84 | G4double pDPhi );
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| 85 | //
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| 86 | // Constructs a tubs with the given name and dimensions
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| 87 |
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| 88 | virtual ~G4Tubs();
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| 89 | //
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| 90 | // Destructor
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| 91 |
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| 92 | // Accessors
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| 93 |
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| 94 | inline G4double GetInnerRadius () const;
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| 95 | inline G4double GetOuterRadius () const;
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| 96 | inline G4double GetZHalfLength () const;
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| 97 | inline G4double GetStartPhiAngle () const;
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| 98 | inline G4double GetDeltaPhiAngle () const;
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| 99 |
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| 100 | // Modifiers
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| 101 |
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| 102 | inline void SetInnerRadius (G4double newRMin);
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| 103 | inline void SetOuterRadius (G4double newRMax);
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| 104 | inline void SetZHalfLength (G4double newDz);
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| 105 | inline void SetStartPhiAngle (G4double newSPhi);
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| 106 | inline void SetDeltaPhiAngle (G4double newDPhi);
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| 107 |
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| 108 | // Methods for solid
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| 109 |
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| 110 | inline G4double GetCubicVolume();
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| 111 | inline G4double GetSurfaceArea();
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| 112 |
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| 113 | void ComputeDimensions( G4VPVParameterisation* p,
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| 114 | const G4int n,
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| 115 | const G4VPhysicalVolume* pRep );
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| 116 |
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| 117 | G4bool CalculateExtent( const EAxis pAxis,
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| 118 | const G4VoxelLimits& pVoxelLimit,
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| 119 | const G4AffineTransform& pTransform,
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| 120 | G4double& pmin, G4double& pmax ) const;
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| 121 |
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| 122 | EInside Inside( const G4ThreeVector& p ) const;
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| 123 |
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| 124 | G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const;
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| 125 |
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| 126 | G4double DistanceToIn(const G4ThreeVector& p, const G4ThreeVector& v) const;
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| 127 | G4double DistanceToIn(const G4ThreeVector& p) const;
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| 128 | G4double DistanceToOut(const G4ThreeVector& p, const G4ThreeVector& v,
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| 129 | const G4bool calcNorm=G4bool(false),
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| 130 | G4bool *validNorm=0, G4ThreeVector *n=0) const;
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| 131 | G4double DistanceToOut(const G4ThreeVector& p) const;
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| 132 |
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| 133 | G4GeometryType GetEntityType() const;
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| 134 |
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| 135 | G4ThreeVector GetPointOnSurface() const;
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| 136 |
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| 137 | std::ostream& StreamInfo( std::ostream& os ) const;
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| 138 |
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| 139 | // Visualisation functions
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| 140 |
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| 141 | void DescribeYourselfTo ( G4VGraphicsScene& scene ) const;
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| 142 | G4Polyhedron* CreatePolyhedron () const;
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| 143 | G4NURBS* CreateNURBS () const;
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| 144 |
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| 145 | public: // without description
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| 146 |
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| 147 | G4Tubs(__void__&);
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| 148 | //
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| 149 | // Fake default constructor for usage restricted to direct object
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| 150 | // persistency for clients requiring preallocation of memory for
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| 151 | // persistifiable objects.
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| 152 |
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| 153 | // Older names for access functions
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| 154 |
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| 155 | inline G4double GetRMin() const;
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| 156 | inline G4double GetRMax() const;
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| 157 | inline G4double GetDz () const;
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| 158 | inline G4double GetSPhi() const;
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| 159 | inline G4double GetDPhi() const;
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| 160 |
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| 161 | protected:
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| 162 |
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| 163 | G4ThreeVectorList*
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| 164 | CreateRotatedVertices( const G4AffineTransform& pTransform ) const;
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| 165 | //
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| 166 | // Creates the List of transformed vertices in the format required
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| 167 | // for G4VSolid:: ClipCrossSection and ClipBetweenSections
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| 168 |
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| 169 | G4double fRMin, fRMax, fDz, fSPhi, fDPhi;
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| 170 | G4bool fPhiFullTube;
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| 171 |
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| 172 | // Used by distanceToOut
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| 173 |
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| 174 | enum ESide {kNull,kRMin,kRMax,kSPhi,kEPhi,kPZ,kMZ};
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| 175 |
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| 176 | // Used by normal
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| 177 |
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| 178 | enum ENorm {kNRMin,kNRMax,kNSPhi,kNEPhi,kNZ};
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| 179 |
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| 180 | private:
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| 181 |
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| 182 | inline void Initialize();
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| 183 | //
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| 184 | // Reset relevant values to zero
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| 185 |
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| 186 | inline void InitializeTrigonometry();
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| 187 | //
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| 188 | // Recompute relevant trigonometric values and cache them
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| 189 |
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| 190 | G4ThreeVector ApproxSurfaceNormal( const G4ThreeVector& p ) const;
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| 191 | //
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| 192 | // Algorithm for SurfaceNormal() following the original
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| 193 | // specification for points not on the surface
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| 194 |
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| 195 | private:
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| 196 |
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| 197 | G4double kRadTolerance, kAngTolerance;
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| 198 | //
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| 199 | // Radial and angular tolerances
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| 200 |
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| 201 | G4double sinCPhi, cosCPhi, cosHDPhiOT, cosHDPhiIT,
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| 202 | sinSPhi, cosSPhi, sinEPhi, cosEPhi;
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| 203 | //
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| 204 | // Cached trigonometric values
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| 205 | };
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| 206 |
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| 207 | #include "G4Tubs.icc"
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| 208 |
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| 209 | #endif
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