[831] | 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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[850] | 27 | // $Id: G4PolyconeSide.hh,v 1.12 2008/05/15 11:41:58 gcosmo Exp $ |
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[1228] | 28 | // GEANT4 tag $Name: geant4-09-03 $ |
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[831] | 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 | // G4PolyconeSide |
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| 36 | // |
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| 37 | // Class description: |
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| 38 | // |
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| 39 | // Class implmenting a face that represents one conical side |
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| 40 | // of a polycone: |
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| 41 | // |
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| 42 | // G4PolyconeSide( const G4PolyconeSideRZ *prevRZ, |
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| 43 | // const G4PolyconeSideRZ *tail, |
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| 44 | // const G4PolyconeSideRZ *head, |
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| 45 | // const G4PolyconeSideRZ *nextRZ, |
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| 46 | // G4double phiStart, G4double deltaPhi, |
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| 47 | // G4bool phiIsOpen, G4bool isAllBehind=false ) |
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| 48 | // |
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| 49 | // Values for r1,z1 and r2,z2 should be specified in clockwise |
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| 50 | // order in (r,z). |
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| 51 | |
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| 52 | // Author: |
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| 53 | // David C. Williams (davidw@scipp.ucsc.edu) |
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| 54 | // -------------------------------------------------------------------- |
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| 55 | |
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| 56 | #ifndef G4PolyconeSide_hh |
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| 57 | #define G4PolyconeSide_hh |
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| 58 | |
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| 59 | #include "G4VCSGface.hh" |
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| 60 | |
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| 61 | class G4IntersectingCone; |
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| 62 | |
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| 63 | struct G4PolyconeSideRZ |
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| 64 | { |
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| 65 | G4double r, z; // start of vector |
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| 66 | }; |
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| 67 | |
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| 68 | class G4PolyconeSide : public G4VCSGface |
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| 69 | { |
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| 70 | public: |
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| 71 | |
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| 72 | G4PolyconeSide( const G4PolyconeSideRZ *prevRZ, |
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| 73 | const G4PolyconeSideRZ *tail, |
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| 74 | const G4PolyconeSideRZ *head, |
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| 75 | const G4PolyconeSideRZ *nextRZ, |
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| 76 | G4double phiStart, G4double deltaPhi, |
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| 77 | G4bool phiIsOpen, G4bool isAllBehind=false ); |
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| 78 | virtual ~G4PolyconeSide(); |
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| 79 | |
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| 80 | G4PolyconeSide( const G4PolyconeSide &source ); |
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| 81 | G4PolyconeSide& operator=( const G4PolyconeSide &source ); |
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| 82 | |
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| 83 | G4bool Intersect( const G4ThreeVector &p, const G4ThreeVector &v, |
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| 84 | G4bool outgoing, G4double surfTolerance, |
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| 85 | G4double &distance, G4double &distFromSurface, |
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| 86 | G4ThreeVector &normal, G4bool &isAllBehind ); |
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| 87 | |
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| 88 | G4double Distance( const G4ThreeVector &p, G4bool outgoing ); |
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| 89 | |
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| 90 | EInside Inside( const G4ThreeVector &p, G4double tolerance, |
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| 91 | G4double *bestDistance ); |
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| 92 | |
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| 93 | G4ThreeVector Normal( const G4ThreeVector &p, G4double *bestDistance ); |
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| 94 | |
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| 95 | G4double Extent( const G4ThreeVector axis ); |
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| 96 | |
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| 97 | void CalculateExtent( const EAxis axis, |
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| 98 | const G4VoxelLimits &voxelLimit, |
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| 99 | const G4AffineTransform &tranform, |
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| 100 | G4SolidExtentList &extentList ); |
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| 101 | |
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| 102 | G4VCSGface *Clone() { return new G4PolyconeSide( *this ); } |
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[850] | 103 | |
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| 104 | G4double SurfaceArea(); |
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| 105 | G4ThreeVector GetPointOnFace(); |
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[831] | 106 | |
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| 107 | public: // without description |
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| 108 | |
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| 109 | G4PolyconeSide(__void__&); |
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| 110 | // Fake default constructor for usage restricted to direct object |
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| 111 | // persistency for clients requiring preallocation of memory for |
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| 112 | // persistifiable objects. |
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| 113 | |
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| 114 | protected: |
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| 115 | |
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| 116 | G4double r[2], z[2]; // r, z parameters, in specified order |
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| 117 | G4double startPhi, // Start phi (0 to 2pi), if phiIsOpen |
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| 118 | deltaPhi; // Delta phi (0 to 2pi), if phiIsOpen |
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| 119 | G4bool phiIsOpen; // True if there is a phi slice |
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| 120 | G4bool allBehind; // True if the entire solid is "behind" this face |
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| 121 | |
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| 122 | G4IntersectingCone *cone; // Our intersecting utility class |
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| 123 | |
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| 124 | G4double rNorm, zNorm; // Normal to surface in r,z space |
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| 125 | G4double rS, zS; // Unit vector along surface in r,z space |
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| 126 | G4double length; // Length of face in r,z space |
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| 127 | G4double prevRS, |
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| 128 | prevZS; // Unit vector along previous polyconeSide |
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| 129 | G4double nextRS, |
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| 130 | nextZS; // Unit vector along next polyconeSide |
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| 131 | |
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| 132 | G4double rNormEdge[2], |
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| 133 | zNormEdge[2]; // Normal to edges |
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| 134 | |
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[850] | 135 | G4int ncorners; |
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[831] | 136 | G4ThreeVector *corners; // The coordinates of the corners (if phiIsOpen) |
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| 137 | |
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| 138 | G4double DistanceAway( const G4ThreeVector &p, G4bool opposite, |
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| 139 | G4double &distOutside2, G4double *rzNorm=0 ); |
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| 140 | |
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| 141 | G4bool PointOnCone( const G4ThreeVector &hit, G4double normSign, |
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| 142 | const G4ThreeVector &p, |
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| 143 | const G4ThreeVector &v, G4ThreeVector &normal ); |
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| 144 | |
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| 145 | void CopyStuff( const G4PolyconeSide &source ); |
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| 146 | |
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| 147 | static void FindLineIntersect( G4double x1, G4double y1, |
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| 148 | G4double tx1, G4double ty1, |
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| 149 | G4double x2, G4double y2, |
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| 150 | G4double tx2, G4double ty2, |
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| 151 | G4double &x, G4double &y ); |
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| 152 | private: |
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| 153 | |
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| 154 | G4double kCarTolerance; // Geometrical surface thickness |
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[850] | 155 | G4double fSurfaceArea; // Used for surface calculation |
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[831] | 156 | }; |
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| 157 | |
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| 158 | #endif |
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