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: G4VTwistedFaceted.hh,v 1.10 2006/10/20 13:45:20 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: HEAD $ |
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29 | // |
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30 | // -------------------------------------------------------------------- |
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31 | // GEANT 4 class header file |
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32 | // |
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33 | // |
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34 | // G4VTwistedFaceted |
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35 | // |
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36 | // Class description: |
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37 | // |
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38 | // G4VTwistedFaceted is an abstract base class for twisted boxoids: |
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39 | // G4TwistedTrd, G4TwistedTrap and G4TwistedBox |
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40 | |
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41 | // Author: |
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42 | // |
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43 | // 27-Oct-2004 - O.Link (Oliver.Link@cern.ch) |
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44 | // |
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45 | // -------------------------------------------------------------------- |
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46 | |
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47 | #ifndef __G4VTWISTEDFACETED__ |
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48 | #define __G4VTWISTEDFACETED__ |
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49 | |
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50 | #include "G4VSolid.hh" |
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51 | #include "G4TwistTrapAlphaSide.hh" |
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52 | #include "G4TwistTrapParallelSide.hh" |
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53 | #include "G4TwistBoxSide.hh" |
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54 | #include "G4TwistTrapFlatSide.hh" |
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55 | |
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56 | class G4SolidExtentList; |
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57 | class G4ClippablePolygon; |
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58 | |
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59 | class G4VTwistedFaceted: public G4VSolid |
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60 | { |
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61 | public: // with description |
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62 | |
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63 | G4VTwistedFaceted(const G4String &pname, // Name of instance |
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64 | G4double PhiTwist, // twist angle |
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65 | G4double pDz, // half z lenght |
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66 | G4double pTheta, // direction between end planes |
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67 | G4double pPhi, // defined by polar & azim. angles |
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68 | G4double pDy1, // half y length at -pDz |
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69 | G4double pDx1, // half x length at -pDz,-pDy |
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70 | G4double pDx2, // half x length at -pDz,+pDy |
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71 | G4double pDy2, // half y length at +pDz |
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72 | G4double pDx3, // half x length at +pDz,-pDy |
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73 | G4double pDx4, // half x length at +pDz,+pDy |
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74 | G4double pAlph // tilt angle at +pDz |
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75 | ); |
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76 | |
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77 | virtual ~G4VTwistedFaceted(); |
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78 | |
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79 | virtual void ComputeDimensions(G4VPVParameterisation*, |
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80 | const G4int, |
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81 | const G4VPhysicalVolume* ); |
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82 | |
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83 | virtual G4bool CalculateExtent(const EAxis pAxis, |
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84 | const G4VoxelLimits &pVoxelLimit, |
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85 | const G4AffineTransform &pTransform, |
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86 | G4double &pMin, |
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87 | G4double &pMax ) const; |
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88 | |
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89 | virtual G4double DistanceToIn (const G4ThreeVector &p, |
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90 | const G4ThreeVector &v ) const; |
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91 | |
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92 | virtual G4double DistanceToIn (const G4ThreeVector &p ) const; |
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93 | |
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94 | virtual G4double DistanceToOut(const G4ThreeVector &p, |
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95 | const G4ThreeVector &v, |
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96 | const G4bool calcnorm = false, |
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97 | G4bool *validnorm = 0, |
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98 | G4ThreeVector *n=0 ) const; |
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99 | |
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100 | virtual G4double DistanceToOut(const G4ThreeVector &p) const; |
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101 | |
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102 | virtual EInside Inside (const G4ThreeVector &p) const; |
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103 | |
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104 | virtual G4ThreeVector SurfaceNormal(const G4ThreeVector &p) const; |
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105 | |
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106 | G4ThreeVector GetPointOnSurface() const; |
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107 | G4ThreeVector GetPointInSolid(G4double z) const; |
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108 | |
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109 | virtual inline G4double GetCubicVolume() ; |
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110 | virtual inline G4double GetSurfaceArea() ; |
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111 | |
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112 | virtual void DescribeYourselfTo (G4VGraphicsScene &scene) const; |
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113 | virtual G4Polyhedron *CreatePolyhedron () const ; |
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114 | virtual G4NURBS *CreateNURBS () const; |
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115 | virtual G4Polyhedron *GetPolyhedron () const; |
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116 | |
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117 | virtual std::ostream &StreamInfo(std::ostream& os) const; |
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118 | |
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119 | // accessors |
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120 | |
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121 | inline G4double GetTwistAngle () const { return fPhiTwist; } |
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122 | |
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123 | inline G4double GetDx1 () const { return fDx1 ; } |
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124 | inline G4double GetDx2 () const { return fDx2 ; } |
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125 | inline G4double GetDx3 () const { return fDx3 ; } |
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126 | inline G4double GetDx4 () const { return fDx4 ; } |
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127 | inline G4double GetDy1 () const { return fDy1 ; } |
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128 | inline G4double GetDy2 () const { return fDy2 ; } |
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129 | inline G4double GetDz () const { return fDz ; } |
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130 | inline G4double GetPhi () const { return fPhi ; } |
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131 | inline G4double GetTheta () const { return fTheta ; } |
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132 | inline G4double GetAlpha () const { return fAlph ; } |
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133 | |
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134 | inline G4double Xcoef(G4double u,G4double phi, G4double ftg) const ; |
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135 | // For calculating the w(u) function |
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136 | |
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137 | inline G4double GetValueA(G4double phi) const; |
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138 | inline G4double GetValueB(G4double phi) const; |
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139 | inline G4double GetValueD(G4double phi) const; |
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140 | |
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141 | virtual G4VisExtent GetExtent () const; |
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142 | virtual G4GeometryType GetEntityType() const; |
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143 | |
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144 | public: // without description |
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145 | |
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146 | G4VTwistedFaceted(__void__&); |
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147 | // Fake default constructor for usage restricted to direct object |
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148 | // persistency for clients requiring preallocation of memory for |
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149 | // persistifiable objects. |
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150 | |
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151 | protected: // with description |
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152 | |
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153 | G4ThreeVectorList* |
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154 | CreateRotatedVertices(const G4AffineTransform& pTransform) const; |
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155 | // Create the List of transformed vertices in the format required |
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156 | // for G4VSolid:: ClipCrossSection and ClipBetweenSections. |
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157 | |
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158 | private: |
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159 | |
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160 | void CreateSurfaces(); |
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161 | |
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162 | private: |
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163 | |
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164 | G4double fTheta; |
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165 | G4double fPhi ; |
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166 | |
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167 | G4double fDy1; |
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168 | G4double fDx1; |
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169 | G4double fDx2; |
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170 | |
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171 | G4double fDy2; |
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172 | G4double fDx3; |
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173 | G4double fDx4; |
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174 | |
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175 | G4double fDz; // Half-length along the z axis |
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176 | |
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177 | G4double fDx ; // maximum side in x |
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178 | G4double fDy ; // maximum side in y |
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179 | |
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180 | G4double fAlph ; |
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181 | G4double fTAlph ; // std::tan(fAlph) |
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182 | |
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183 | G4double fdeltaX ; |
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184 | G4double fdeltaY ; |
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185 | |
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186 | G4double fPhiTwist; // twist angle ( dphi in surface equation) |
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187 | |
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188 | G4double fAngleSide; |
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189 | |
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190 | G4VTwistSurface *fLowerEndcap ; // surface of -ve z |
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191 | G4VTwistSurface *fUpperEndcap ; // surface of +ve z |
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192 | |
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193 | G4VTwistSurface *fSide0 ; // Twisted Side at phi = 0 deg |
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194 | G4VTwistSurface *fSide90 ; // Twisted Side at phi = 90 deg |
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195 | G4VTwistSurface *fSide180 ; // Twisted Side at phi = 180 deg |
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196 | G4VTwistSurface *fSide270 ; // Twisted Side at phi = 270 deg |
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197 | |
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198 | G4double fCubicVolume ; // volume of the solid |
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199 | G4double fSurfaceArea ; // area of the solid |
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200 | |
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201 | mutable G4Polyhedron* fpPolyhedron; // pointer to polyhedron for vis |
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202 | |
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203 | class LastState // last Inside result |
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204 | { |
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205 | public: |
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206 | LastState() |
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207 | { |
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208 | p.set(kInfinity,kInfinity,kInfinity); |
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209 | inside = kOutside; |
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210 | } |
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211 | ~LastState(){} |
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212 | public: |
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213 | G4ThreeVector p; |
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214 | EInside inside; |
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215 | }; |
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216 | |
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217 | class LastVector // last SurfaceNormal result |
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218 | { |
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219 | public: |
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220 | LastVector() |
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221 | { |
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222 | p.set(kInfinity,kInfinity,kInfinity); |
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223 | vec.set(kInfinity,kInfinity,kInfinity); |
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224 | surface = new G4VTwistSurface*[1]; |
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225 | } |
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226 | ~LastVector() |
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227 | { |
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228 | delete [] surface; |
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229 | } |
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230 | public: |
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231 | G4ThreeVector p; |
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232 | G4ThreeVector vec; |
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233 | G4VTwistSurface **surface; |
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234 | }; |
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235 | |
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236 | class LastValue // last G4double value |
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237 | { |
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238 | public: |
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239 | LastValue() |
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240 | { |
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241 | p.set(kInfinity,kInfinity,kInfinity); |
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242 | value = DBL_MAX; |
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243 | } |
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244 | ~LastValue(){} |
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245 | public: |
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246 | G4ThreeVector p; |
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247 | G4double value; |
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248 | }; |
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249 | |
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250 | class LastValueWithDoubleVector // last G4double value |
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251 | { |
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252 | public: |
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253 | LastValueWithDoubleVector() |
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254 | { |
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255 | p.set(kInfinity,kInfinity,kInfinity); |
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256 | vec.set(kInfinity,kInfinity,kInfinity); |
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257 | value = DBL_MAX; |
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258 | } |
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259 | ~LastValueWithDoubleVector(){} |
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260 | public: |
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261 | G4ThreeVector p; |
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262 | G4ThreeVector vec; |
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263 | G4double value; |
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264 | }; |
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265 | |
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266 | LastState fLastInside; |
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267 | LastVector fLastNormal; |
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268 | LastValue fLastDistanceToIn; |
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269 | LastValue fLastDistanceToOut; |
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270 | LastValueWithDoubleVector fLastDistanceToInWithV; |
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271 | LastValueWithDoubleVector fLastDistanceToOutWithV; |
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272 | |
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273 | }; |
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274 | |
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275 | //===================================================================== |
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276 | |
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277 | inline |
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278 | G4double G4VTwistedFaceted::GetCubicVolume() |
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279 | { |
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280 | if(fCubicVolume != 0.) ; |
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281 | else fCubicVolume = 2 * fDz |
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282 | * ( ( fDx1 + fDx2 ) * fDy1 + ( fDx3 + fDx4 ) * fDy2 ); |
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283 | return fCubicVolume; |
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284 | } |
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285 | |
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286 | inline |
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287 | G4double G4VTwistedFaceted::GetSurfaceArea() |
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288 | { |
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289 | if(fSurfaceArea != 0.) ; |
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290 | else fSurfaceArea = G4VSolid::GetSurfaceArea(); |
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291 | return fSurfaceArea; |
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292 | } |
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293 | |
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294 | inline |
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295 | G4double G4VTwistedFaceted::GetValueA(G4double phi) const |
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296 | { |
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297 | return ( fDx4 + fDx2 + ( fDx4 - fDx2 ) * ( 2 * phi ) / fPhiTwist ) ; |
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298 | } |
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299 | |
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300 | inline |
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301 | G4double G4VTwistedFaceted::GetValueD(G4double phi) const |
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302 | { |
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303 | return ( fDx3 + fDx1 + ( fDx3 - fDx1 ) * ( 2 * phi ) / fPhiTwist ) ; |
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304 | } |
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305 | |
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306 | inline |
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307 | G4double G4VTwistedFaceted::GetValueB(G4double phi) const |
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308 | { |
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309 | return ( fDy2 + fDy1 + ( fDy2 - fDy1 ) * ( 2 * phi ) / fPhiTwist ) ; |
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310 | } |
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311 | |
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312 | inline |
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313 | G4double G4VTwistedFaceted::Xcoef(G4double u, G4double phi, G4double ftg) const |
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314 | { |
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315 | return GetValueA(phi)/2. + (GetValueD(phi)-GetValueA(phi))/4. |
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316 | - u*( ( GetValueD(phi)-GetValueA(phi) ) / ( 2 * GetValueB(phi) ) - ftg ); |
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317 | } |
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318 | |
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319 | #endif |
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