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: G4Tubs.hh,v 1.22 2009/03/26 16:25:44 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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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 | // G4Tubs |
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36 | // |
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37 | // Class description: |
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38 | // |
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39 | // A tube or tube segment with curved sides parallel to |
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40 | // the z-axis. The tube has a specified half-length along |
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41 | // the z-axis, about which it is centered, and a given |
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42 | // minimum and maximum radius. A minimum radius of 0 |
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43 | // corresponds to filled tube /cylinder. The tube segment is |
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44 | // specified by starting and delta angles for phi, with 0 |
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45 | // being the +x axis, PI/2 the +y axis. |
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46 | // A delta angle of 2PI signifies a complete, unsegmented |
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47 | // tube/cylinder. |
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48 | // |
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49 | // Member Data: |
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50 | // |
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51 | // fRMin Inner radius |
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52 | // fRMax Outer radius |
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53 | // fDz half length in z |
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54 | // |
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55 | // fSPhi The starting phi angle in radians, |
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56 | // adjusted such that fSPhi+fDPhi<=2PI, fSPhi>-2PI |
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57 | // |
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58 | // fDPhi Delta angle of the segment. |
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59 | // |
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60 | // fPhiFullTube Boolean variable used for indicate the Phi Section |
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61 | |
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62 | // History: |
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63 | // 10.08.95 P.Kent: General cleanup, use G4VSolid extent helper functions |
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64 | // to CalculateExtent() |
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65 | // 23.01.94 P.Kent: Converted to `tolerant' geometry |
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66 | // 19.07.96 J.Allison: G4GraphicsScene - see G4Box |
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67 | // 22.07.96 J.Allison: Changed SendPolyhedronTo to CreatePolyhedron |
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68 | // -------------------------------------------------------------------- |
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69 | |
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70 | #ifndef G4TUBS_HH |
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71 | #define G4TUBS_HH |
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72 | |
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73 | #include "G4CSGSolid.hh" |
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74 | |
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75 | class G4Tubs : public G4CSGSolid |
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76 | { |
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77 | public: // with description |
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78 | |
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79 | G4Tubs( const G4String& pName, |
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80 | G4double pRMin, |
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81 | G4double pRMax, |
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82 | G4double pDz, |
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83 | G4double pSPhi, |
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84 | G4double pDPhi ); |
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85 | // |
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86 | // Constructs a tubs with the given name and dimensions |
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87 | |
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88 | ~G4Tubs(); |
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89 | // |
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90 | // Destructor |
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91 | |
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92 | // Accessors |
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93 | |
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94 | inline G4double GetInnerRadius () const; |
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95 | inline G4double GetOuterRadius () const; |
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96 | inline G4double GetZHalfLength () const; |
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97 | inline G4double GetStartPhiAngle () const; |
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98 | inline G4double GetDeltaPhiAngle () const; |
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99 | |
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100 | // Modifiers |
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101 | |
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102 | inline void SetInnerRadius (G4double newRMin); |
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103 | inline void SetOuterRadius (G4double newRMax); |
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104 | inline void SetZHalfLength (G4double newDz); |
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105 | inline void SetStartPhiAngle (G4double newSPhi, G4bool trig=true); |
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106 | inline void SetDeltaPhiAngle (G4double newDPhi); |
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107 | |
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108 | // Methods for solid |
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109 | |
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110 | inline G4double GetCubicVolume(); |
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111 | inline G4double GetSurfaceArea(); |
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112 | |
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113 | void ComputeDimensions( G4VPVParameterisation* p, |
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114 | const G4int n, |
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115 | const G4VPhysicalVolume* pRep ); |
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116 | |
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117 | G4bool CalculateExtent( const EAxis pAxis, |
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118 | const G4VoxelLimits& pVoxelLimit, |
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119 | const G4AffineTransform& pTransform, |
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120 | G4double& pmin, G4double& pmax ) const; |
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121 | |
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122 | EInside Inside( const G4ThreeVector& p ) const; |
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123 | |
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124 | G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const; |
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125 | |
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126 | G4double DistanceToIn(const G4ThreeVector& p, const G4ThreeVector& v) const; |
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127 | G4double DistanceToIn(const G4ThreeVector& p) const; |
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128 | G4double DistanceToOut(const G4ThreeVector& p, const G4ThreeVector& v, |
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129 | const G4bool calcNorm=G4bool(false), |
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130 | G4bool *validNorm=0, G4ThreeVector *n=0) const; |
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131 | G4double DistanceToOut(const G4ThreeVector& p) const; |
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132 | |
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133 | G4GeometryType GetEntityType() const; |
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134 | |
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135 | G4ThreeVector GetPointOnSurface() const; |
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136 | |
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137 | std::ostream& StreamInfo( std::ostream& os ) const; |
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138 | |
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139 | // Visualisation functions |
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140 | |
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141 | void DescribeYourselfTo ( G4VGraphicsScene& scene ) const; |
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142 | G4Polyhedron* CreatePolyhedron () const; |
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143 | G4NURBS* CreateNURBS () const; |
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144 | |
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145 | public: // without description |
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146 | |
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147 | G4Tubs(__void__&); |
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148 | // |
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149 | // Fake default constructor for usage restricted to direct object |
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150 | // persistency for clients requiring preallocation of memory for |
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151 | // persistifiable objects. |
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152 | |
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153 | // Older names for access functions |
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154 | |
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155 | inline G4double GetRMin() const; |
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156 | inline G4double GetRMax() const; |
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157 | inline G4double GetDz () const; |
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158 | inline G4double GetSPhi() const; |
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159 | inline G4double GetDPhi() const; |
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160 | |
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161 | private: |
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162 | |
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163 | G4ThreeVectorList* |
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164 | CreateRotatedVertices( const G4AffineTransform& pTransform ) const; |
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165 | // |
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166 | // Creates the List of transformed vertices in the format required |
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167 | // for G4VSolid:: ClipCrossSection and ClipBetweenSections |
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168 | |
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169 | inline void Initialize(); |
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170 | // |
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171 | // Reset relevant values to zero |
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172 | |
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173 | inline void CheckSPhiAngle(G4double sPhi); |
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174 | inline void CheckDPhiAngle(G4double dPhi); |
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175 | inline void CheckPhiAngles(G4double sPhi, G4double dPhi); |
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176 | // |
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177 | // Reset relevant flags and angle values |
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178 | |
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179 | inline void InitializeTrigonometry(); |
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180 | // |
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181 | // Recompute relevant trigonometric values and cache them |
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182 | |
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183 | G4ThreeVector ApproxSurfaceNormal( const G4ThreeVector& p ) const; |
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184 | // |
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185 | // Algorithm for SurfaceNormal() following the original |
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186 | // specification for points not on the surface |
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187 | |
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188 | private: |
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189 | |
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190 | // Used by distanceToOut |
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191 | // |
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192 | enum ESide {kNull,kRMin,kRMax,kSPhi,kEPhi,kPZ,kMZ}; |
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193 | |
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194 | // Used by normal |
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195 | // |
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196 | enum ENorm {kNRMin,kNRMax,kNSPhi,kNEPhi,kNZ}; |
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197 | |
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198 | G4double kRadTolerance, kAngTolerance; |
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199 | // |
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200 | // Radial and angular tolerances |
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201 | |
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202 | G4double fRMin, fRMax, fDz, fSPhi, fDPhi; |
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203 | // |
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204 | // Radial and angular dimensions |
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205 | |
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206 | G4double sinCPhi, cosCPhi, cosHDPhiOT, cosHDPhiIT, |
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207 | sinSPhi, cosSPhi, sinEPhi, cosEPhi; |
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208 | // |
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209 | // Cached trigonometric values |
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210 | |
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211 | G4bool fPhiFullTube; |
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212 | // |
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213 | // Flag for identification of section or full tube |
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214 | }; |
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215 | |
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216 | #include "G4Tubs.icc" |
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217 | |
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218 | #endif |
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