[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: G4Trap.icc,v 1.8 2006/10/19 15:33:37 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 | // GEANT 4 inline definitions file |
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| 32 | // |
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| 33 | // G4Trap.icc |
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| 34 | // |
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| 35 | // Implementation of inline methods of G4Trap |
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| 36 | // -------------------------------------------------------------------- |
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| 37 | |
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| 38 | inline |
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| 39 | G4double G4Trap::GetZHalfLength() const |
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| 40 | { |
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| 41 | return fDz ; |
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| 42 | } |
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| 43 | |
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| 44 | inline |
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| 45 | G4ThreeVector G4Trap::GetSymAxis() const |
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| 46 | { |
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| 47 | G4double cosTheta = 1.0/std::sqrt(1+fTthetaCphi*fTthetaCphi + |
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| 48 | fTthetaSphi*fTthetaSphi) ; |
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| 49 | |
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| 50 | return G4ThreeVector(fTthetaCphi*cosTheta, |
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| 51 | fTthetaSphi*cosTheta, |
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| 52 | cosTheta) ; |
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| 53 | } |
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| 54 | |
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| 55 | inline |
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| 56 | G4double G4Trap::GetYHalfLength1() const |
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| 57 | { |
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| 58 | return fDy1 ; |
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| 59 | } |
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| 60 | |
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| 61 | inline |
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| 62 | G4double G4Trap::GetXHalfLength1() const |
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| 63 | { |
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| 64 | return fDx1 ; |
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| 65 | } |
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| 66 | |
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| 67 | inline |
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| 68 | G4double G4Trap::GetXHalfLength2() const |
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| 69 | { |
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| 70 | return fDx2 ; |
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| 71 | } |
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| 72 | |
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| 73 | inline |
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| 74 | G4double G4Trap::GetTanAlpha1() const |
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| 75 | { |
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| 76 | return fTalpha1 ; |
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| 77 | } |
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| 78 | |
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| 79 | inline |
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| 80 | G4double G4Trap::GetYHalfLength2() const |
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| 81 | { |
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| 82 | return fDy2 ; |
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| 83 | } |
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| 84 | |
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| 85 | inline |
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| 86 | G4double G4Trap::GetXHalfLength3() const |
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| 87 | { |
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| 88 | return fDx3 ; |
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| 89 | } |
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| 90 | |
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| 91 | inline |
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| 92 | G4double G4Trap::GetXHalfLength4() const |
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| 93 | { |
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| 94 | return fDx4 ; |
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| 95 | } |
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| 96 | |
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| 97 | inline |
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| 98 | G4double G4Trap::GetTanAlpha2() const |
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| 99 | { |
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| 100 | return fTalpha2 ; |
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| 101 | } |
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| 102 | |
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| 103 | inline |
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| 104 | TrapSidePlane G4Trap::GetSidePlane( G4int n ) const |
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| 105 | { |
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| 106 | return fPlanes[n] ; |
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| 107 | } |
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| 108 | |
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| 109 | inline |
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| 110 | G4double G4Trap::GetFaceArea(const G4ThreeVector& p0, const G4ThreeVector& p1, |
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| 111 | const G4ThreeVector& p2, const G4ThreeVector& p3) |
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| 112 | { |
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| 113 | G4double area = 0.5*((p1-p0).cross(p2-p1).mag()+(p3-p2).cross(p0-p3).mag()); |
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| 114 | return area; |
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| 115 | } |
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| 116 | |
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| 117 | inline |
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| 118 | G4double G4Trap::GetCubicVolume() |
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| 119 | { |
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| 120 | if(fCubicVolume != 0.) {;} |
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| 121 | else { fCubicVolume = fDz*( (fDx1+fDx2+fDx3+fDx4)*(fDy1+fDy2) |
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| 122 | + (fDx4+fDx3-fDx2-fDx1)*(fDy2-fDy1)/3 ); } |
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| 123 | return fCubicVolume; |
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| 124 | } |
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| 125 | |
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| 126 | inline |
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| 127 | G4double G4Trap::GetSurfaceArea() |
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| 128 | { |
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| 129 | if(fSurfaceArea != 0.) {;} |
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| 130 | else |
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| 131 | { |
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| 132 | G4ThreeVector ba(fDx1-fDx2+fTalpha1*2*fDy1,2*fDy1,0); |
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| 133 | G4ThreeVector bc(2*fDz*fTthetaCphi-(fDx4-fDx2)+fTalpha2*fDy2-fTalpha1*fDy1, |
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| 134 | 2*fDz*fTthetaSphi+fDy2-fDy1, 2*fDz); |
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| 135 | G4ThreeVector dc(-fDx4+fDx3+2*fTalpha2*fDy2, 2*fDy2,0); |
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| 136 | G4ThreeVector da(-2*fDz*fTthetaCphi-(fDx1-fDx3)-fTalpha1*fDy1+fTalpha2*fDy2, |
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| 137 | -2*fDz*fTthetaSphi-fDy1+fDy2,-2*fDz); |
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| 138 | |
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| 139 | G4ThreeVector ef(fDx2-fDx1+2*fTalpha1*fDy1, 2*fDy1,0); |
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| 140 | G4ThreeVector eh(2*fDz*fTthetaCphi+fDx3-fDx1+fTalpha1*fDy1-fTalpha2*fDy2, |
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| 141 | 2*fDz*fTthetaSphi-fDy2+fDy1,2*fDz); |
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| 142 | G4ThreeVector gh(fDx3-fDx4-2*fTalpha2*fDy2, -2*fDy2,0); |
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| 143 | G4ThreeVector gf(-2*fDz*fTthetaCphi+fDx2-fDx4+fTalpha1*fDy1-fTalpha2*fDy2, |
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| 144 | -2*fDz*fTthetaSphi+fDy1-fDy2,-2*fDz); |
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| 145 | |
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| 146 | G4ThreeVector cr; |
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| 147 | cr = ba.cross(bc); |
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| 148 | G4double babc=cr.mag(); |
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| 149 | cr = dc.cross(da); |
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| 150 | G4double dcda=cr.mag(); |
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| 151 | cr = ef.cross(eh); |
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| 152 | G4double efeh=cr.mag(); |
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| 153 | cr = gh.cross(gf); |
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| 154 | G4double ghgf=cr.mag(); |
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| 155 | |
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| 156 | fSurfaceArea = 2*fDy1*(fDx1+fDx2)+2*fDy2*(fDx3+fDx4) |
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| 157 | + (fDx1+fDx3) |
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| 158 | * std::sqrt(4*fDz*fDz+std::pow(fDy2-fDy1-2*fDz*fTthetaSphi,2)) |
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| 159 | + (fDx2+fDx4) |
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| 160 | * std::sqrt(4*fDz*fDz+std::pow(fDy2-fDy1+2*fDz*fTthetaSphi,2)) |
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| 161 | + 0.5*(babc+dcda+efeh+ghgf); |
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| 162 | } |
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| 163 | return fSurfaceArea; |
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| 164 | } |
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