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: G4Cons.hh,v 1.21 2008/11/06 11:04:00 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-02-cand-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 | // G4Cons |
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35 | // |
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36 | // Class description: |
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37 | // |
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38 | // A G4Cons is, in the general case, a Phi segment of a cone, with |
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39 | // half-length fDz, inner and outer radii specified at -fDz and +fDz. |
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40 | // The Phi segment is described by a starting fSPhi angle, and the |
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41 | // +fDPhi delta angle for the shape. |
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42 | // If the delta angle is >=2*pi, the shape is treated as continuous |
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43 | // in Phi |
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44 | // |
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45 | // Member Data: |
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46 | // |
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47 | // fRmin1 inside radius at -fDz |
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48 | // fRmin2 inside radius at +fDz |
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49 | // fRmax1 outside radius at -fDz |
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50 | // fRmax2 outside radius at +fDz |
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51 | // fDz half length in z |
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52 | // |
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53 | // fSPhi starting angle of the segment in radians |
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54 | // fDPhi delta angle of the segment in radians |
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55 | // |
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56 | // fPhiFullCone Boolean variable used for indicate the Phi Section |
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57 | // |
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58 | // Note: |
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59 | // Internally fSPhi & fDPhi are adjusted so that fDPhi<=2PI, |
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60 | // and fDPhi+fSPhi<=2PI. This enables simpler comparisons to be |
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61 | // made with (say) Phi of a point. |
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62 | |
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63 | // History: |
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64 | // 19.3.94 P.Kent: Old C++ code converted to tolerant geometry |
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65 | // 13.9.96 V.Grichine: Final modifications to commit |
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66 | // -------------------------------------------------------------------- |
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67 | |
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68 | #ifndef G4Cons_HH |
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69 | #define G4Cons_HH |
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70 | |
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71 | #include "G4CSGSolid.hh" |
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72 | |
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73 | class G4Cons : public G4CSGSolid |
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74 | { |
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75 | public: // with description |
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76 | |
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77 | G4Cons(const G4String& pName, |
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78 | G4double pRmin1, G4double pRmax1, |
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79 | G4double pRmin2, G4double pRmax2, |
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80 | G4double pDz, |
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81 | G4double pSPhi, G4double pDPhi); |
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82 | |
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83 | virtual ~G4Cons() ; |
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84 | |
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85 | // Accessors |
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86 | |
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87 | inline G4double GetInnerRadiusMinusZ() const; |
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88 | inline G4double GetOuterRadiusMinusZ() const; |
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89 | inline G4double GetInnerRadiusPlusZ() const; |
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90 | inline G4double GetOuterRadiusPlusZ() const; |
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91 | |
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92 | inline G4double GetZHalfLength() const; |
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93 | |
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94 | inline G4double GetStartPhiAngle () const; |
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95 | inline G4double GetDeltaPhiAngle () const; |
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96 | |
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97 | // Modifiers |
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98 | |
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99 | inline void SetInnerRadiusMinusZ( G4double Rmin1 ); |
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100 | inline void SetOuterRadiusMinusZ( G4double Rmax1 ); |
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101 | inline void SetInnerRadiusPlusZ ( G4double Rmin2 ); |
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102 | inline void SetOuterRadiusPlusZ ( G4double Rmax2 ); |
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103 | |
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104 | inline void SetZHalfLength ( G4double newDz ); |
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105 | inline void SetStartPhiAngle ( G4double newSPhi); |
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106 | inline void SetDeltaPhiAngle ( G4double newDPhi); |
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107 | |
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108 | // Other 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, |
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127 | const G4ThreeVector& v) const; |
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128 | G4double DistanceToIn (const G4ThreeVector& p) const; |
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129 | G4double DistanceToOut(const G4ThreeVector& p, |
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130 | const G4ThreeVector& v, |
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131 | const G4bool calcNorm=G4bool(false), |
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132 | G4bool *validNorm=0, |
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133 | G4ThreeVector *n=0) const; |
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134 | G4double DistanceToOut(const G4ThreeVector& p) const; |
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135 | |
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136 | G4GeometryType GetEntityType() const; |
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137 | |
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138 | G4ThreeVector GetPointOnSurface() const; |
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139 | |
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140 | std::ostream& StreamInfo(std::ostream& os) const; |
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141 | |
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142 | // Visualisation functions |
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143 | |
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144 | void DescribeYourselfTo( G4VGraphicsScene& scene ) const; |
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145 | G4Polyhedron* CreatePolyhedron() const; |
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146 | G4NURBS* CreateNURBS() const; |
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147 | |
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148 | public: // without description |
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149 | |
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150 | G4Cons(__void__&); |
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151 | // |
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152 | // Fake default constructor for usage restricted to direct object |
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153 | // persistency for clients requiring preallocation of memory for |
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154 | // persistifiable objects. |
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155 | |
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156 | // Old access functions |
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157 | |
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158 | inline G4double GetRmin1() const; |
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159 | inline G4double GetRmax1() const; |
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160 | inline G4double GetRmin2() const; |
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161 | inline G4double GetRmax2() const; |
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162 | |
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163 | inline G4double GetDz() const; |
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164 | |
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165 | inline G4double GetSPhi() const; |
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166 | inline G4double GetDPhi() const; |
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167 | |
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168 | protected: |
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169 | |
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170 | G4ThreeVectorList* |
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171 | CreateRotatedVertices(const G4AffineTransform& pTransform) const; |
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172 | |
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173 | G4double fRmin1, fRmin2, fRmax1, fRmax2, fDz, fSPhi, fDPhi; |
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174 | G4bool fPhiFullCone; |
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175 | |
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176 | // Used by distanceToOut |
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177 | |
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178 | enum ESide {kNull,kRMin,kRMax,kSPhi,kEPhi,kPZ,kMZ}; |
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179 | |
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180 | // used by normal |
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181 | |
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182 | enum ENorm {kNRMin,kNRMax,kNSPhi,kNEPhi,kNZ}; |
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183 | |
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184 | private: |
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185 | |
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186 | inline void Initialise(); |
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187 | // Reset relevant values to zero |
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188 | |
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189 | inline void InitializeTrigonometry(); |
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190 | // |
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191 | // Recompute relevant trigonometric values and cache them |
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192 | |
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193 | G4ThreeVector ApproxSurfaceNormal(const G4ThreeVector& p) const; |
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194 | // |
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195 | // Algorithm for SurfaceNormal() following the original |
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196 | // specification for points not on the surface |
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197 | |
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198 | private: |
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199 | |
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200 | G4double kRadTolerance, kAngTolerance; |
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201 | // |
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202 | // Radial and angular tolerances |
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203 | |
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204 | G4double sinCPhi, cosCPhi, cosHDPhiOT, cosHDPhiIT, |
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205 | sinSPhi, cosSPhi, sinEPhi, cosEPhi; |
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206 | // |
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207 | // Cached trigonometric values |
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208 | }; |
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209 | |
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210 | #include "G4Cons.icc" |
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211 | |
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212 | #endif |
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