[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: G4Paraboloid.icc,v 1.4 2007/08/21 12:58:36 gcosmo Exp $ |
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[1058] | 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
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[831] | 29 | // |
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| 30 | // |
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| 31 | // -------------------------------------------------------------------- |
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| 32 | // GEANT 4 inline definitions file |
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| 33 | // |
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| 34 | // G4Paraboloid.icc |
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| 35 | // |
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| 36 | // Implementation of inline methods of G4Paraboloid |
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| 37 | // -------------------------------------------------------------------- |
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| 38 | |
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| 39 | inline |
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| 40 | G4double G4Paraboloid::GetZHalfLength() const |
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| 41 | { |
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| 42 | return dz; |
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| 43 | } |
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| 44 | |
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| 45 | inline |
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| 46 | G4double G4Paraboloid::GetRadiusPlusZ() const |
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| 47 | { |
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| 48 | return r2; |
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| 49 | } |
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| 50 | |
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| 51 | inline |
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| 52 | G4double G4Paraboloid::GetRadiusMinusZ() const |
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| 53 | { |
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| 54 | return r1; |
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| 55 | } |
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| 56 | |
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| 57 | inline |
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| 58 | void G4Paraboloid::SetZHalfLength(G4double pDz) |
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| 59 | { |
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| 60 | if(pDz <= 0) |
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| 61 | { |
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| 62 | G4Exception("G4Paraboloid::SetZHalfLength()", "InvalidSetup", |
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| 63 | FatalException, "Invalid dimensions."); |
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| 64 | } |
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| 65 | else |
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| 66 | { |
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| 67 | dz = pDz; |
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| 68 | k1 = (sqr(r2) - sqr(r1)) / (2 * dz); |
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| 69 | k2 = (sqr(r2) + sqr(r1)) / 2; |
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| 70 | |
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| 71 | // This informs GetSurfaceArea() and GetCubicVolume() that it needs |
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| 72 | // to recalculate buffered value. |
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| 73 | // |
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| 74 | fSurfaceArea = 0.; |
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| 75 | fCubicVolume = 0.; |
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| 76 | } |
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| 77 | } |
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| 78 | |
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| 79 | inline |
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| 80 | void G4Paraboloid::SetRadiusPlusZ(G4double pR2) |
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| 81 | { |
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| 82 | if(pR2 <= 0 || pR2 <= r1) |
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| 83 | { |
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| 84 | G4Exception("G4Paraboloid::SetRadiusPlusZ()", "InvalidSetup", |
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| 85 | FatalException, "Invalid dimensions."); |
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| 86 | } |
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| 87 | else |
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| 88 | { |
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| 89 | r2 = pR2; |
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| 90 | k1 = (sqr(r2) - sqr(r1)) / (2 * dz); |
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| 91 | k2 = (sqr(r2) + sqr(r1)) / 2; |
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| 92 | |
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| 93 | // This informs GetSurfaceArea() and GetCubicVolume() that it needs |
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| 94 | // to recalculate buffered value. |
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| 95 | // |
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| 96 | fSurfaceArea = 0.; |
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| 97 | fCubicVolume = 0.; |
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| 98 | } |
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| 99 | } |
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| 100 | |
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| 101 | inline |
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| 102 | void G4Paraboloid::SetRadiusMinusZ(G4double pR1) |
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| 103 | { |
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| 104 | if(pR1 < 0 || pR1 >= r2) |
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| 105 | { |
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| 106 | G4Exception("G4Paraboloid::SetRadiusMinusZ()", "InvalidSetup", |
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| 107 | FatalException, "Invalid dimensions."); |
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| 108 | } |
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| 109 | else |
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| 110 | { |
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| 111 | r1 = pR1; |
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| 112 | k1 = (sqr(r2) - sqr(r1)) / (2 * dz); |
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| 113 | k2 = (sqr(r2) + sqr(r1)) / 2; |
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| 114 | |
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| 115 | // This informs GetSurfaceArea() and GetCubicVolume() that it needs |
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| 116 | // to recalculate buffered value. |
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| 117 | // |
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| 118 | fSurfaceArea = 0.; |
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| 119 | fCubicVolume = 0.; |
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| 120 | } |
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| 121 | } |
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| 122 | |
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| 123 | inline |
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| 124 | G4double G4Paraboloid::GetCubicVolume() |
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| 125 | { |
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| 126 | if(fCubicVolume != 0 ) {;} |
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| 127 | else |
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| 128 | { |
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| 129 | fCubicVolume = pi * 2. * k2 * dz; |
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| 130 | } |
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| 131 | return fCubicVolume; |
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| 132 | } |
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| 133 | |
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| 134 | |
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| 135 | inline |
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| 136 | G4double G4Paraboloid::CalculateSurfaceArea() const |
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| 137 | { |
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| 138 | G4double h1, h2, A1, A2; |
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| 139 | |
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| 140 | h1 = k2/k1 + dz; |
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| 141 | h2 = k2/k1 - dz; |
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| 142 | |
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| 143 | // Calculate surface area for the paraboloid full paraboloid |
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| 144 | // cutoff at z = dz (not the cutoff area though). |
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| 145 | |
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| 146 | A1 = sqr(r2) + 4 * sqr(h1); |
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| 147 | A1 *= sqr(A1); // Sets A1 = A1^3 |
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| 148 | A1 = pi * r2 /6 / sqr(h1) * ( std::sqrt(A1) - r2 * r2 * r2); |
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| 149 | |
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| 150 | // Calculate surface area for the paraboloid full paraboloid |
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| 151 | // cutoff at z = -dz (not the cutoff area though). |
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| 152 | |
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| 153 | A2 = sqr(r1) + 4 * sqr(h2); |
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| 154 | A2 *= sqr(A2);// Sets A2 = A2^3 |
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| 155 | |
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| 156 | if(h2 != 0) |
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| 157 | { A2 = pi * r1 /6 / sqr(h2) * ( std::sqrt(A2) - r1 * r1 * r1); } |
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| 158 | else |
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| 159 | { A2 = 0.; } |
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| 160 | |
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| 161 | return fSurfaceArea = A1 - A2 + (sqr(r1) + sqr(r2))*pi; |
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| 162 | } |
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| 163 | |
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| 164 | inline |
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| 165 | G4double G4Paraboloid::GetSurfaceArea() |
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| 166 | { |
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| 167 | if(fSurfaceArea == 0.) CalculateSurfaceArea(); |
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| 168 | |
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| 169 | return fSurfaceArea; |
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| 170 | } |
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