[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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| 27 | // $Id: G4TwistTubsHypeSide.hh,v 1.5 2006/06/29 18:47:56 gunter Exp $ |
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[1337] | 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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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 | // G4TwistTubsHypeSide |
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| 36 | // |
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| 37 | // Class description: |
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| 38 | // |
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| 39 | // Class describing a hyperbolic boundary surface for a cylinder. |
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| 40 | |
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| 41 | // Author: |
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| 42 | // 01-Aug-2002 - Kotoyo Hoshina (hoshina@hepburn.s.chiba-u.ac.jp) |
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| 43 | // |
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| 44 | // History: |
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| 45 | // 13-Nov-2003 - O.Link (Oliver.Link@cern.ch), Integration in Geant4 |
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| 46 | // from original version in Jupiter-2.5.02 application. |
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| 47 | // -------------------------------------------------------------------- |
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| 48 | #ifndef __G4TWISTTUBSHYPESIDE__ |
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| 49 | #define __G4TWISTTUBSHYPESIDE__ |
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| 50 | |
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| 51 | #include "G4VTwistSurface.hh" |
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| 52 | #include "G4Integrator.hh" |
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| 53 | #include "G4SimpleIntegration.hh" |
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| 54 | |
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| 55 | class G4TwistTubsHypeSide : public G4VTwistSurface |
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| 56 | { |
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| 57 | public: // with description |
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| 58 | |
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| 59 | G4TwistTubsHypeSide(const G4String &name, |
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| 60 | const G4RotationMatrix &rot, // 0.5*(phi-width segment) |
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| 61 | const G4ThreeVector &tlate, |
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| 62 | const G4int handedness,// R-hand = 1, L-hand = -1 |
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| 63 | const G4double kappa, // tan(TwistAngle/2)/fZHalfLen |
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| 64 | const G4double tanstereo, // tan(stereo angle) |
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| 65 | const G4double r0, // radius at z = 0 |
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| 66 | const EAxis axis0 = kPhi, |
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| 67 | const EAxis axis1 = kZAxis, |
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| 68 | G4double axis0min = -kInfinity, |
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| 69 | G4double axis1min = -kInfinity, |
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| 70 | G4double axis0max = kInfinity, |
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| 71 | G4double axis1max = kInfinity); |
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| 72 | |
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| 73 | G4TwistTubsHypeSide(const G4String &name, |
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| 74 | G4double EndInnerRadius[2], |
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| 75 | G4double EndOuterRadius[2], |
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| 76 | G4double DPhi, |
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| 77 | G4double EndPhi[2], |
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| 78 | G4double EndZ[2], |
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| 79 | G4double InnerRadius, |
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| 80 | G4double OuterRadius, |
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| 81 | G4double Kappa, |
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| 82 | G4double TanInnerStereo, |
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| 83 | G4double TanOuterStereo, |
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| 84 | G4int handedness) ; |
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| 85 | |
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| 86 | virtual ~G4TwistTubsHypeSide(); |
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| 87 | |
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| 88 | virtual G4int DistanceToSurface(const G4ThreeVector &gp, |
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| 89 | const G4ThreeVector &gv, |
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| 90 | G4ThreeVector gxx[], |
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| 91 | G4double distance[], |
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| 92 | G4int areacode[], |
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| 93 | G4bool isvalid[], |
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| 94 | EValidate validate = kValidateWithTol); |
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| 95 | |
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| 96 | virtual G4int DistanceToSurface(const G4ThreeVector &gp, |
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| 97 | G4ThreeVector gxx[], |
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| 98 | G4double distance[], |
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| 99 | G4int areacode[]); |
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| 100 | |
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| 101 | virtual G4ThreeVector GetNormal(const G4ThreeVector &xx, |
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| 102 | G4bool isGlobal = false) ; |
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| 103 | virtual EInside Inside(const G4ThreeVector &gp) ; |
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| 104 | |
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| 105 | virtual G4double GetRhoAtPZ(const G4ThreeVector &p, |
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| 106 | G4bool isglobal = false) const ; |
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| 107 | |
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| 108 | virtual G4ThreeVector SurfacePoint(G4double, G4double, |
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| 109 | G4bool isGlobal = false) ; |
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| 110 | virtual G4double GetBoundaryMin(G4double phi) ; |
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| 111 | virtual G4double GetBoundaryMax(G4double phi) ; |
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| 112 | virtual G4double GetSurfaceArea() ; |
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| 113 | virtual void GetFacets( G4int m, G4int n, G4double xyz[][3], |
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| 114 | G4int faces[][4], G4int iside ) ; |
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| 115 | |
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| 116 | public: // without description |
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| 117 | |
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| 118 | G4TwistTubsHypeSide(__void__&); |
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| 119 | // Fake default constructor for usage restricted to direct object |
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| 120 | // persistency for clients requiring preallocation of memory for |
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| 121 | // persistifiable objects. |
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| 122 | |
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| 123 | private: |
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| 124 | |
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| 125 | virtual G4int GetAreaCode(const G4ThreeVector &xx, |
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| 126 | G4bool withTol = true); |
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| 127 | virtual G4int GetAreaCodeInPhi(const G4ThreeVector &xx, |
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| 128 | G4bool withTol = true); |
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| 129 | virtual void SetCorners(); |
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| 130 | |
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| 131 | virtual void SetCorners(G4double EndInnerRadius[2], |
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| 132 | G4double EndOuterRadius[2], |
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| 133 | G4double DPhi, |
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| 134 | G4double EndPhi[2], |
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| 135 | G4double EndZ[2]); |
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| 136 | virtual void SetBoundaries(); |
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| 137 | |
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| 138 | private: |
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| 139 | |
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| 140 | G4double fKappa; // std::tan(TwistedAngle/2)/HalfLenZ; |
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| 141 | G4double fTanStereo; // std::tan(StereoAngle) |
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| 142 | G4double fTan2Stereo; // std::tan(StereoAngle)**2 |
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| 143 | G4double fR0; // radius at z = 0 |
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| 144 | G4double fR02; // radius**2 at z = 0 |
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| 145 | G4double fDPhi ; // segment |
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| 146 | |
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| 147 | class Insidetype |
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| 148 | { |
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| 149 | public: |
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| 150 | G4ThreeVector gp; |
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| 151 | EInside inside; |
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| 152 | }; |
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| 153 | Insidetype fInside; |
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| 154 | }; |
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| 155 | |
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| 156 | //======================================================== |
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| 157 | // inline functions |
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| 158 | //======================================================== |
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| 159 | |
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| 160 | inline |
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| 161 | G4double G4TwistTubsHypeSide::GetRhoAtPZ(const G4ThreeVector &p, |
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| 162 | G4bool isglobal) const |
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| 163 | { |
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| 164 | // Get Rho at p.z() on Hyperbolic Surface. |
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| 165 | G4ThreeVector tmpp; |
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| 166 | if (isglobal) { |
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| 167 | tmpp = fRot.inverse()*p - fTrans; |
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| 168 | } else { |
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| 169 | tmpp = p; |
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| 170 | } |
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| 171 | return std::sqrt(fR02 + tmpp.z() * tmpp.z() * fTan2Stereo); |
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| 172 | } |
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| 173 | |
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| 174 | inline |
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| 175 | G4ThreeVector G4TwistTubsHypeSide:: |
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| 176 | SurfacePoint(G4double phi , G4double z , G4bool isGlobal) |
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| 177 | { |
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| 178 | G4double rho = std::sqrt(fR02 + z * z * fTan2Stereo) ; |
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| 179 | |
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| 180 | G4ThreeVector SurfPoint (rho*std::cos(phi), rho*std::sin(phi), z) ; |
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| 181 | |
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| 182 | if (isGlobal) { return (fRot * SurfPoint + fTrans); } |
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| 183 | return SurfPoint; |
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| 184 | } |
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| 185 | |
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| 186 | inline |
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| 187 | G4double G4TwistTubsHypeSide::GetBoundaryMin(G4double z) |
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| 188 | { |
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| 189 | G4ThreeVector ptmp(0,0,z) ; // temporary point with z Komponent only |
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| 190 | G4ThreeVector lowerlimit; // lower phi-boundary limit at z = ptmp.z() |
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| 191 | lowerlimit = GetBoundaryAtPZ(sAxis0 & sAxisMin, ptmp); |
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| 192 | return std::atan2( lowerlimit.y(), lowerlimit.x() ) ; |
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| 193 | } |
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| 194 | |
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| 195 | inline |
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| 196 | G4double G4TwistTubsHypeSide::GetBoundaryMax(G4double z ) |
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| 197 | { |
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| 198 | G4ThreeVector ptmp(0,0,z) ; // temporary point with z Komponent only |
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| 199 | G4ThreeVector upperlimit; // upper phi-boundary limit at z = ptmp.z() |
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| 200 | upperlimit = GetBoundaryAtPZ(sAxis0 & sAxisMax, ptmp); |
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| 201 | return std::atan2( upperlimit.y(), upperlimit.x() ) ; |
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| 202 | } |
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| 203 | |
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| 204 | inline |
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| 205 | G4double G4TwistTubsHypeSide::GetSurfaceArea() |
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| 206 | { |
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| 207 | // approximation with tube surface |
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| 208 | |
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| 209 | return ( fAxisMax[1] - fAxisMin[1] ) * fR0 * fDPhi ; |
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| 210 | } |
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| 211 | |
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| 212 | #endif |
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