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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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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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 | // 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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