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.cc,v 1.45 2008/04/23 09:49:57 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 | // class G4Trap |
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31 | // |
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32 | // Implementation for G4Trap class |
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33 | // |
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34 | // History: |
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35 | // |
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36 | // 28.04.05 V.Grichine: new SurfaceNormal according to J. Apostolakis proposal |
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37 | // 26.04.05 V.Grichine: new SurfaceNormal is default |
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38 | // 19.04.05 V.Grichine: bug fixed in G4Trap("name",G4ThreeVector[8] vp) |
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39 | // 12.12.04 V.Grichine: SurfaceNormal with edges/vertices |
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40 | // 15.11.04 V.Grichine: bug fixed in G4Trap("name",G4ThreeVector[8] vp) |
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41 | // 13.12.99 V.Grichine: bug fixed in DistanceToIn(p,v) |
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42 | // 19.11.99 V.Grichine: kUndef was added to Eside enum |
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43 | // 04.06.99 S.Giani: Fixed CalculateExtent in rotated case. |
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44 | // 08.12.97 J.Allison: Added "nominal" constructor and method SetAllParameters. |
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45 | // 01.11.96 V.Grichine: Costructor for Right Angular Wedge from STEP, G4Trd/Para |
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46 | // 09.09.96 V.Grichine: Final modifications before to commit |
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47 | // 21.03.95 P.Kent: Modified for `tolerant' geometry |
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48 | // |
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49 | //////////////////////////////////////////////////////////////////////////////////// |
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50 | |
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51 | #include "G4Trap.hh" |
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52 | #include "globals.hh" |
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53 | |
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54 | #include "G4VoxelLimits.hh" |
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55 | #include "G4AffineTransform.hh" |
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56 | |
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57 | #include "G4VPVParameterisation.hh" |
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58 | |
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59 | #include "Randomize.hh" |
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60 | |
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61 | #include "G4VGraphicsScene.hh" |
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62 | #include "G4Polyhedron.hh" |
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63 | #include "G4NURBS.hh" |
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64 | #include "G4NURBSbox.hh" |
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65 | |
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66 | using namespace CLHEP; |
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67 | |
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68 | //////////////////////////////////////////////////////////////////////// |
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69 | // |
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70 | // Accuracy of coplanarity |
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71 | |
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72 | const G4double kCoplanar_Tolerance = 1E-4 ; |
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73 | |
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74 | ////////////////////////////////////////////////////////////////////////// |
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75 | // |
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76 | // Private enum: Not for external use |
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77 | |
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78 | enum Eside {kUndef,ks0,ks1,ks2,ks3,kPZ,kMZ}; |
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79 | |
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80 | ////////////////////////////////////////////////////////////////////////// |
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81 | // |
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82 | // Constructor - check and set half-widths as well as angles: |
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83 | // final check of coplanarity |
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84 | |
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85 | G4Trap::G4Trap( const G4String& pName, |
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86 | G4double pDz, |
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87 | G4double pTheta, G4double pPhi, |
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88 | G4double pDy1, G4double pDx1, G4double pDx2, |
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89 | G4double pAlp1, |
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90 | G4double pDy2, G4double pDx3, G4double pDx4, |
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91 | G4double pAlp2) |
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92 | : G4CSGSolid(pName) |
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93 | { |
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94 | if ( pDz > 0 && pDy1 > 0 && pDx1 > 0 && |
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95 | pDx2 > 0 && pDy2 > 0 && pDx3 > 0 && pDx4 > 0 ) |
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96 | { |
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97 | fDz=pDz; |
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98 | fTthetaCphi=std::tan(pTheta)*std::cos(pPhi); |
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99 | fTthetaSphi=std::tan(pTheta)*std::sin(pPhi); |
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100 | |
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101 | fDy1=pDy1; |
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102 | fDx1=pDx1; |
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103 | fDx2=pDx2; |
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104 | fTalpha1=std::tan(pAlp1); |
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105 | |
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106 | fDy2=pDy2; |
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107 | fDx3=pDx3; |
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108 | fDx4=pDx4; |
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109 | fTalpha2=std::tan(pAlp2); |
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110 | |
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111 | MakePlanes(); |
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112 | } |
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113 | else |
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114 | { |
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115 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl |
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116 | << " Invalid dimensions !" << G4endl |
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117 | << " X - " |
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118 | << pDx1 << ", " << pDx2 << ", " << pDx3 << ", " << pDx4 << G4endl |
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119 | << " Y - " << pDy1 << ", " << pDy2 << G4endl |
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120 | << " Z - " << pDz << G4endl; |
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121 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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122 | "Invalid length G4Trap parameters."); |
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123 | } |
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124 | } |
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125 | |
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126 | //////////////////////////////////////////////////////////////////////////// |
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127 | // |
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128 | // Constructor - Design of trapezoid based on 8 G4ThreeVector parameters, |
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129 | // which are its vertices. Checking of planarity with preparation of |
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130 | // fPlanes[] and than calculation of other members |
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131 | |
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132 | G4Trap::G4Trap( const G4String& pName, |
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133 | const G4ThreeVector pt[8] ) |
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134 | : G4CSGSolid(pName) |
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135 | { |
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136 | // Start with check of centering - the center of gravity trap line |
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137 | // should cross the origin of frame |
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138 | |
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139 | if ( pt[0].z() < 0 |
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140 | && pt[0].z() == pt[1].z() && pt[0].z() == pt[2].z() |
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141 | && pt[0].z() == pt[3].z() |
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142 | && pt[4].z() > 0 |
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143 | && pt[4].z() == pt[5].z() && pt[4].z() == pt[6].z() |
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144 | && pt[4].z() == pt[7].z() |
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145 | && std::fabs( pt[0].z() + pt[4].z() ) < kCarTolerance |
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146 | && pt[0].y() == pt[1].y() && pt[2].y() == pt[3].y() |
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147 | && pt[4].y() == pt[5].y() && pt[6].y() == pt[7].y() |
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148 | && std::fabs( pt[0].y() + pt[2].y() + pt[4].y() + pt[6].y() ) < kCarTolerance |
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149 | && std::fabs( pt[0].x() + pt[1].x() + pt[4].x() + pt[5].x() + |
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150 | pt[2].x() + pt[3].x() + pt[6].x() + pt[7].x() ) < kCarTolerance ) |
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151 | { |
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152 | G4bool good; |
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153 | |
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154 | // Bottom side with normal approx. -Y |
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155 | |
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156 | good = MakePlane(pt[0],pt[4],pt[5],pt[1],fPlanes[0]); |
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157 | |
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158 | if (!good) |
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159 | { |
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160 | DumpInfo(); |
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161 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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162 | "Face at ~-Y not planar."); |
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163 | } |
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164 | |
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165 | // Top side with normal approx. +Y |
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166 | |
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167 | good = MakePlane(pt[2],pt[3],pt[7],pt[6],fPlanes[1]); |
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168 | |
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169 | if (!good) |
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170 | { |
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171 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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172 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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173 | "Face at ~+Y not planar."); |
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174 | } |
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175 | |
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176 | // Front side with normal approx. -X |
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177 | |
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178 | good = MakePlane(pt[0],pt[2],pt[6],pt[4],fPlanes[2]); |
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179 | |
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180 | if (!good) |
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181 | { |
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182 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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183 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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184 | "Face at ~-X not planar."); |
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185 | } |
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186 | |
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187 | // Back side iwth normal approx. +X |
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188 | |
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189 | good = MakePlane(pt[1],pt[5],pt[7],pt[3],fPlanes[3]); |
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190 | if (!good) |
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191 | { |
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192 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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193 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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194 | "Face at ~+X not planar."); |
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195 | } |
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196 | fDz = (pt[7]).z() ; |
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197 | |
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198 | fDy1 = ((pt[2]).y()-(pt[1]).y())*0.5; |
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199 | fDx1 = ((pt[1]).x()-(pt[0]).x())*0.5; |
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200 | fDx2 = ((pt[3]).x()-(pt[2]).x())*0.5; |
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201 | fTalpha1 = ((pt[2]).x()+(pt[3]).x()-(pt[1]).x()-(pt[0]).x())*0.25/fDy1; |
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202 | |
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203 | fDy2 = ((pt[6]).y()-(pt[5]).y())*0.5; |
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204 | fDx3 = ((pt[5]).x()-(pt[4]).x())*0.5; |
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205 | fDx4 = ((pt[7]).x()-(pt[6]).x())*0.5; |
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206 | fTalpha2 = ((pt[6]).x()+(pt[7]).x()-(pt[5]).x()-(pt[4]).x())*0.25/fDy2; |
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207 | |
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208 | fTthetaCphi = ((pt[4]).x()+fDy2*fTalpha2+fDx3)/fDz; |
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209 | fTthetaSphi = ((pt[4]).y()+fDy2)/fDz; |
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210 | } |
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211 | else |
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212 | { |
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213 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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214 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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215 | "Invalid vertice coordinates."); |
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216 | } |
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217 | } |
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218 | |
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219 | ////////////////////////////////////////////////////////////////////////////// |
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220 | // |
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221 | // Constructor for Right Angular Wedge from STEP |
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222 | |
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223 | G4Trap::G4Trap( const G4String& pName, |
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224 | G4double pZ, |
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225 | G4double pY, |
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226 | G4double pX, G4double pLTX ) |
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227 | : G4CSGSolid(pName) |
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228 | |
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229 | { |
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230 | G4bool good; |
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231 | |
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232 | if ( pZ>0 && pY>0 && pX>0 && pLTX>0 && pLTX<=pX ) |
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233 | { |
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234 | fDz = 0.5*pZ ; |
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235 | fTthetaCphi = 0 ; |
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236 | fTthetaSphi = 0 ; |
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237 | |
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238 | fDy1 = 0.5*pY; |
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239 | fDx1 = 0.5*pX ; |
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240 | fDx2 = 0.5*pLTX; |
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241 | fTalpha1 = 0.5*(pLTX - pX)/pY; |
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242 | |
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243 | fDy2 = fDy1 ; |
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244 | fDx3 = fDx1; |
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245 | fDx4 = fDx2 ; |
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246 | fTalpha2 = fTalpha1 ; |
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247 | |
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248 | G4ThreeVector pt[8] ; |
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249 | |
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250 | pt[0]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
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251 | -fDz*fTthetaSphi-fDy1,-fDz); |
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252 | pt[1]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
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253 | -fDz*fTthetaSphi-fDy1,-fDz); |
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254 | pt[2]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
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255 | -fDz*fTthetaSphi+fDy1,-fDz); |
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256 | pt[3]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
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257 | -fDz*fTthetaSphi+fDy1,-fDz); |
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258 | pt[4]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
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259 | +fDz*fTthetaSphi-fDy2,+fDz); |
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260 | pt[5]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
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261 | +fDz*fTthetaSphi-fDy2,+fDz); |
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262 | pt[6]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
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263 | +fDz*fTthetaSphi+fDy2,+fDz); |
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264 | pt[7]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
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265 | +fDz*fTthetaSphi+fDy2,+fDz); |
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266 | |
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267 | // Bottom side with normal approx. -Y |
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268 | // |
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269 | good=MakePlane(pt[0],pt[4],pt[5],pt[1],fPlanes[0]); |
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270 | if (!good) |
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271 | { |
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272 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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273 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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274 | "Face at ~-Y not planar."); |
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275 | } |
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276 | |
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277 | // Top side with normal approx. +Y |
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278 | // |
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279 | good=MakePlane(pt[2],pt[3],pt[7],pt[6],fPlanes[1]); |
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280 | if (!good) |
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281 | { |
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282 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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283 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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284 | "Face at ~+Y not planar."); |
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285 | } |
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286 | |
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287 | // Front side with normal approx. -X |
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288 | // |
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289 | good=MakePlane(pt[0],pt[2],pt[6],pt[4],fPlanes[2]); |
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290 | if (!good) |
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291 | { |
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292 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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293 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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294 | "Face at ~-X not planar."); |
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295 | } |
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296 | |
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297 | // Back side iwth normal approx. +X |
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298 | // |
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299 | good=MakePlane(pt[1],pt[5],pt[7],pt[3],fPlanes[3]); |
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300 | if (!good) |
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301 | { |
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302 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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303 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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304 | "Face at ~+X not planar."); |
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305 | } |
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306 | } |
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307 | else |
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308 | { |
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309 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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310 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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311 | "Invalid length G4Trap parameters."); |
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312 | } |
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313 | } |
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314 | |
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315 | /////////////////////////////////////////////////////////////////////////////// |
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316 | // |
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317 | // Constructor for G4Trd |
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318 | |
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319 | G4Trap::G4Trap( const G4String& pName, |
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320 | G4double pDx1, G4double pDx2, |
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321 | G4double pDy1, G4double pDy2, |
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322 | G4double pDz ) |
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323 | : G4CSGSolid(pName) |
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324 | { |
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325 | G4bool good; |
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326 | |
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327 | if ( pDz>0 && pDy1>0 && pDx1>0 && pDx2>0 && pDy2>0 ) |
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328 | { |
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329 | fDz = pDz; |
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330 | fTthetaCphi = 0 ; |
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331 | fTthetaSphi = 0 ; |
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332 | |
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333 | fDy1 = pDy1 ; |
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334 | fDx1 = pDx1 ; |
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335 | fDx2 = pDx1 ; |
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336 | fTalpha1 = 0 ; |
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337 | |
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338 | fDy2 = pDy2 ; |
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339 | fDx3 = pDx2 ; |
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340 | fDx4 = pDx2 ; |
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341 | fTalpha2 = 0 ; |
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342 | |
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343 | G4ThreeVector pt[8] ; |
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344 | |
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345 | pt[0]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
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346 | -fDz*fTthetaSphi-fDy1,-fDz); |
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347 | pt[1]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
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348 | -fDz*fTthetaSphi-fDy1,-fDz); |
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349 | pt[2]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
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350 | -fDz*fTthetaSphi+fDy1,-fDz); |
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351 | pt[3]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
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352 | -fDz*fTthetaSphi+fDy1,-fDz); |
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353 | pt[4]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
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354 | +fDz*fTthetaSphi-fDy2,+fDz); |
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355 | pt[5]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
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356 | +fDz*fTthetaSphi-fDy2,+fDz); |
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357 | pt[6]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
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358 | +fDz*fTthetaSphi+fDy2,+fDz); |
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359 | pt[7]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
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360 | +fDz*fTthetaSphi+fDy2,+fDz); |
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361 | |
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362 | // Bottom side with normal approx. -Y |
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363 | // |
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364 | good=MakePlane(pt[0],pt[4],pt[5],pt[1],fPlanes[0]); |
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365 | if (!good) |
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366 | { |
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367 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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368 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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369 | "Face at ~-Y not planar."); |
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370 | } |
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371 | |
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372 | // Top side with normal approx. +Y |
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373 | // |
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374 | good=MakePlane(pt[2],pt[3],pt[7],pt[6],fPlanes[1]); |
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375 | if (!good) |
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376 | { |
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377 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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378 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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379 | "Face at ~+Y not planar."); |
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380 | } |
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381 | |
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382 | // Front side with normal approx. -X |
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383 | // |
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384 | good=MakePlane(pt[0],pt[2],pt[6],pt[4],fPlanes[2]); |
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385 | if (!good) |
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386 | { |
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387 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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388 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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389 | "Face at ~-X not planar."); |
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390 | } |
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391 | |
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392 | // Back side iwth normal approx. +X |
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393 | // |
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394 | good=MakePlane(pt[1],pt[5],pt[7],pt[3],fPlanes[3]); |
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395 | if (!good) |
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396 | { |
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397 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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398 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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399 | "Face at ~+X not planar."); |
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400 | } |
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401 | } |
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402 | else |
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403 | { |
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404 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
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405 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
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406 | "Invalid length G4Trap parameters."); |
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407 | } |
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408 | } |
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409 | |
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410 | //////////////////////////////////////////////////////////////////////////// |
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411 | // |
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412 | // Constructor for G4Para |
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413 | |
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414 | G4Trap::G4Trap( const G4String& pName, |
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415 | G4double pDx, G4double pDy, |
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416 | G4double pDz, |
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417 | G4double pAlpha, |
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418 | G4double pTheta, G4double pPhi) |
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419 | : G4CSGSolid(pName) |
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420 | { |
---|
421 | G4bool good; |
---|
422 | |
---|
423 | if ( pDz>0 && pDy>0 && pDx>0 ) |
---|
424 | { |
---|
425 | fDz = pDz ; |
---|
426 | fTthetaCphi = std::tan(pTheta)*std::cos(pPhi) ; |
---|
427 | fTthetaSphi = std::tan(pTheta)*std::sin(pPhi) ; |
---|
428 | |
---|
429 | fDy1 = pDy ; |
---|
430 | fDx1 = pDx ; |
---|
431 | fDx2 = pDx ; |
---|
432 | fTalpha1 = std::tan(pAlpha) ; |
---|
433 | |
---|
434 | fDy2 = pDy ; |
---|
435 | fDx3 = pDx ; |
---|
436 | fDx4 = pDx ; |
---|
437 | fTalpha2 = fTalpha1 ; |
---|
438 | |
---|
439 | G4ThreeVector pt[8] ; |
---|
440 | |
---|
441 | pt[0]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
---|
442 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
443 | pt[1]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
---|
444 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
445 | pt[2]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
---|
446 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
447 | pt[3]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
---|
448 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
449 | pt[4]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
---|
450 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
451 | pt[5]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
---|
452 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
453 | pt[6]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
---|
454 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
455 | pt[7]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
---|
456 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
457 | |
---|
458 | // Bottom side with normal approx. -Y |
---|
459 | // |
---|
460 | good=MakePlane(pt[0],pt[4],pt[5],pt[1],fPlanes[0]); |
---|
461 | if (!good) |
---|
462 | { |
---|
463 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
---|
464 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
---|
465 | "Face at ~-Y not planar."); |
---|
466 | } |
---|
467 | |
---|
468 | // Top side with normal approx. +Y |
---|
469 | // |
---|
470 | good=MakePlane(pt[2],pt[3],pt[7],pt[6],fPlanes[1]); |
---|
471 | if (!good) |
---|
472 | { |
---|
473 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
---|
474 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
---|
475 | "Face at ~+Y not planar."); |
---|
476 | } |
---|
477 | |
---|
478 | // Front side with normal approx. -X |
---|
479 | // |
---|
480 | good=MakePlane(pt[0],pt[2],pt[6],pt[4],fPlanes[2]); |
---|
481 | if (!good) |
---|
482 | { |
---|
483 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
---|
484 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
---|
485 | "Face at ~-X not planar."); |
---|
486 | } |
---|
487 | |
---|
488 | // Back side iwth normal approx. +X |
---|
489 | // |
---|
490 | good=MakePlane(pt[1],pt[5],pt[7],pt[3],fPlanes[3]); |
---|
491 | if (!good) |
---|
492 | { |
---|
493 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
---|
494 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
---|
495 | "Face at ~+X not planar."); |
---|
496 | } |
---|
497 | } |
---|
498 | else |
---|
499 | { |
---|
500 | G4cerr << "ERROR - G4Trap()::G4Trap(): " << GetName() << G4endl; |
---|
501 | G4Exception("G4Trap::G4Trap()", "InvalidSetup", FatalException, |
---|
502 | "Invalid length G4Trap parameters."); |
---|
503 | } |
---|
504 | } |
---|
505 | |
---|
506 | /////////////////////////////////////////////////////////////////////////// |
---|
507 | // |
---|
508 | // Nominal constructor for G4Trap whose parameters are to be set by |
---|
509 | // a G4VParamaterisation later. Check and set half-widths as well as |
---|
510 | // angles: final check of coplanarity |
---|
511 | |
---|
512 | G4Trap::G4Trap( const G4String& pName ) |
---|
513 | : G4CSGSolid (pName), |
---|
514 | fDz (1.), |
---|
515 | fTthetaCphi (0.), |
---|
516 | fTthetaSphi (0.), |
---|
517 | fDy1 (1.), |
---|
518 | fDx1 (1.), |
---|
519 | fDx2 (1.), |
---|
520 | fTalpha1 (0.), |
---|
521 | fDy2 (1.), |
---|
522 | fDx3 (1.), |
---|
523 | fDx4 (1.), |
---|
524 | fTalpha2 (0.) |
---|
525 | { |
---|
526 | MakePlanes(); |
---|
527 | } |
---|
528 | |
---|
529 | /////////////////////////////////////////////////////////////////////// |
---|
530 | // |
---|
531 | // Fake default constructor - sets only member data and allocates memory |
---|
532 | // for usage restricted to object persistency. |
---|
533 | // |
---|
534 | G4Trap::G4Trap( __void__& a ) |
---|
535 | : G4CSGSolid(a) |
---|
536 | { |
---|
537 | } |
---|
538 | |
---|
539 | //////////////////////////////////////////////////////////////////////// |
---|
540 | // |
---|
541 | // Destructor |
---|
542 | |
---|
543 | G4Trap::~G4Trap() |
---|
544 | { |
---|
545 | } |
---|
546 | |
---|
547 | /////////////////////////////////////////////////////////////////////// |
---|
548 | // |
---|
549 | // Set all parameters, as for constructor - check and set half-widths |
---|
550 | // as well as angles: final check of coplanarity |
---|
551 | |
---|
552 | void G4Trap::SetAllParameters ( G4double pDz, |
---|
553 | G4double pTheta, |
---|
554 | G4double pPhi, |
---|
555 | G4double pDy1, |
---|
556 | G4double pDx1, |
---|
557 | G4double pDx2, |
---|
558 | G4double pAlp1, |
---|
559 | G4double pDy2, |
---|
560 | G4double pDx3, |
---|
561 | G4double pDx4, |
---|
562 | G4double pAlp2 ) |
---|
563 | { |
---|
564 | fCubicVolume= 0.; |
---|
565 | fSurfaceArea= 0.; |
---|
566 | fpPolyhedron = 0; |
---|
567 | if ( pDz>0 && pDy1>0 && pDx1>0 && pDx2>0 && pDy2>0 && pDx3>0 && pDx4>0 ) |
---|
568 | { |
---|
569 | fDz=pDz; |
---|
570 | fTthetaCphi=std::tan(pTheta)*std::cos(pPhi); |
---|
571 | fTthetaSphi=std::tan(pTheta)*std::sin(pPhi); |
---|
572 | |
---|
573 | fDy1=pDy1; |
---|
574 | fDx1=pDx1; |
---|
575 | fDx2=pDx2; |
---|
576 | fTalpha1=std::tan(pAlp1); |
---|
577 | |
---|
578 | fDy2=pDy2; |
---|
579 | fDx3=pDx3; |
---|
580 | fDx4=pDx4; |
---|
581 | fTalpha2=std::tan(pAlp2); |
---|
582 | |
---|
583 | MakePlanes(); |
---|
584 | } |
---|
585 | else |
---|
586 | { |
---|
587 | G4cerr << "ERROR - G4Trap()::SetAllParameters(): " << GetName() << G4endl |
---|
588 | << " Invalid dimensions !" << G4endl |
---|
589 | << " X - " |
---|
590 | << pDx1 << ", " << pDx2 << ", " << pDx3 << ", " << pDx4 << G4endl |
---|
591 | << " Y - " << pDy1 << ", " << pDy2 << G4endl |
---|
592 | << " Z - " << pDz << G4endl; |
---|
593 | G4Exception("G4Trap::SetAllParameters()", "InvalidSetup", |
---|
594 | FatalException, "Invalid Length Parameters."); |
---|
595 | } |
---|
596 | } |
---|
597 | |
---|
598 | ////////////////////////////////////////////////////////////////////////// |
---|
599 | // |
---|
600 | // Checking of coplanarity |
---|
601 | |
---|
602 | G4bool G4Trap::MakePlanes() |
---|
603 | { |
---|
604 | G4bool good = true; |
---|
605 | |
---|
606 | G4ThreeVector pt[8] ; |
---|
607 | |
---|
608 | pt[0]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
---|
609 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
610 | pt[1]=G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
---|
611 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
612 | pt[2]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
---|
613 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
614 | pt[3]=G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
---|
615 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
616 | pt[4]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
---|
617 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
618 | pt[5]=G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
---|
619 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
620 | pt[6]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
---|
621 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
622 | pt[7]=G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
---|
623 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
624 | |
---|
625 | // Bottom side with normal approx. -Y |
---|
626 | // |
---|
627 | good=MakePlane(pt[0],pt[4],pt[5],pt[1],fPlanes[0]) ; |
---|
628 | if (!good) |
---|
629 | { |
---|
630 | G4cerr << "ERROR - G4Trap()::MakePlanes(): " << GetName() << G4endl; |
---|
631 | G4Exception("G4Trap::MakePlanes()", "InvalidSetup", FatalException, |
---|
632 | "Face at ~-Y not planar."); |
---|
633 | } |
---|
634 | |
---|
635 | // Top side with normal approx. +Y |
---|
636 | // |
---|
637 | good=MakePlane(pt[2],pt[3],pt[7],pt[6],fPlanes[1]); |
---|
638 | if (!good) |
---|
639 | { |
---|
640 | G4cerr << "ERROR - G4Trap()::MakePlanes(): " << GetName() << G4endl; |
---|
641 | G4Exception("G4Trap::MakePlanes()", "InvalidSetup", FatalException, |
---|
642 | "Face at ~+Y not planar."); |
---|
643 | } |
---|
644 | |
---|
645 | // Front side with normal approx. -X |
---|
646 | // |
---|
647 | good=MakePlane(pt[0],pt[2],pt[6],pt[4],fPlanes[2]); |
---|
648 | if (!good) |
---|
649 | { |
---|
650 | G4cerr << "ERROR - G4Trap()::MakePlanes(): " << GetName() << G4endl; |
---|
651 | G4Exception("G4Trap::MakePlanes()", "InvalidSetup", FatalException, |
---|
652 | "Face at ~-X not planar."); |
---|
653 | } |
---|
654 | |
---|
655 | // Back side iwth normal approx. +X |
---|
656 | // |
---|
657 | good = MakePlane(pt[1],pt[5],pt[7],pt[3],fPlanes[3]); |
---|
658 | if ( !good ) |
---|
659 | { |
---|
660 | G4cerr << "ERROR - G4Trap()::MakePlanes(): " << GetName() << G4endl; |
---|
661 | G4Exception("G4Trap::MakePlanes()", "InvalidSetup", FatalException, |
---|
662 | "Face at ~+X not planar"); |
---|
663 | } |
---|
664 | |
---|
665 | return good; |
---|
666 | } |
---|
667 | |
---|
668 | ////////////////////////////////////////////////////////////////////////////// |
---|
669 | // |
---|
670 | // Calculate the coef's of the plane p1->p2->p3->p4->p1 |
---|
671 | // where the ThreeVectors 1-4 are in anti-clockwise order when viewed from |
---|
672 | // infront of the plane (i.e. from normal direction). |
---|
673 | // |
---|
674 | // Return true if the ThreeVectors are coplanar + set coef;s |
---|
675 | // false if ThreeVectors are not coplanar |
---|
676 | |
---|
677 | G4bool G4Trap::MakePlane( const G4ThreeVector& p1, |
---|
678 | const G4ThreeVector& p2, |
---|
679 | const G4ThreeVector& p3, |
---|
680 | const G4ThreeVector& p4, |
---|
681 | TrapSidePlane& plane ) |
---|
682 | { |
---|
683 | G4double a, b, c, s; |
---|
684 | G4ThreeVector v12, v13, v14, Vcross; |
---|
685 | |
---|
686 | G4bool good; |
---|
687 | |
---|
688 | v12 = p2 - p1; |
---|
689 | v13 = p3 - p1; |
---|
690 | v14 = p4 - p1; |
---|
691 | Vcross = v12.cross(v13); |
---|
692 | |
---|
693 | if (std::fabs(Vcross.dot(v14)/(Vcross.mag()*v14.mag())) > kCoplanar_Tolerance) |
---|
694 | { |
---|
695 | good = false; |
---|
696 | } |
---|
697 | else |
---|
698 | { |
---|
699 | // a,b,c correspond to the x/y/z components of the |
---|
700 | // normal vector to the plane |
---|
701 | |
---|
702 | // a = (p2.y()-p1.y())*(p1.z()+p2.z())+(p3.y()-p2.y())*(p2.z()+p3.z()); |
---|
703 | // a += (p4.y()-p3.y())*(p3.z()+p4.z())+(p1.y()-p4.y())*(p4.z()+p1.z()); // ? |
---|
704 | // b = (p2.z()-p1.z())*(p1.x()+p2.x())+(p3.z()-p2.z())*(p2.x()+p3.x()); |
---|
705 | // b += (p4.z()-p3.z())*(p3.x()+p4.x())+(p1.z()-p4.z())*(p4.x()+p1.x()); // ? |
---|
706 | // c = (p2.x()-p1.x())*(p1.y()+p2.y())+(p3.x()-p2.x())*(p2.y()+p3.y()); |
---|
707 | // c += (p4.x()-p3.x())*(p3.y()+p4.y())+(p1.x()-p4.x())*(p4.y()+p1.y()); // ? |
---|
708 | |
---|
709 | // Let create diagonals 4-2 and 3-1 than (4-2)x(3-1) provides |
---|
710 | // vector perpendicular to the plane directed to outside !!! |
---|
711 | // and a,b,c, = f(1,2,3,4) external relative to trap normal |
---|
712 | |
---|
713 | a = +(p4.y() - p2.y())*(p3.z() - p1.z()) |
---|
714 | - (p3.y() - p1.y())*(p4.z() - p2.z()); |
---|
715 | |
---|
716 | b = -(p4.x() - p2.x())*(p3.z() - p1.z()) |
---|
717 | + (p3.x() - p1.x())*(p4.z() - p2.z()); |
---|
718 | |
---|
719 | c = +(p4.x() - p2.x())*(p3.y() - p1.y()) |
---|
720 | - (p3.x() - p1.x())*(p4.y() - p2.y()); |
---|
721 | |
---|
722 | s = std::sqrt( a*a + b*b + c*c ); // so now vector plane.(a,b,c) is unit |
---|
723 | |
---|
724 | if( s > 0 ) |
---|
725 | { |
---|
726 | plane.a = a/s; |
---|
727 | plane.b = b/s; |
---|
728 | plane.c = c/s; |
---|
729 | } |
---|
730 | else |
---|
731 | { |
---|
732 | G4cerr << "ERROR - G4Trap()::MakePlane(): " << GetName() << G4endl; |
---|
733 | G4Exception("G4Trap::MakePlanes()", "InvalidSetup", FatalException, |
---|
734 | "Invalid parameters: norm.mod() <= 0") ; |
---|
735 | } |
---|
736 | // Calculate D: p1 in in plane so D=-n.p1.Vect() |
---|
737 | |
---|
738 | plane.d = -( plane.a*p1.x() + plane.b*p1.y() + plane.c*p1.z() ); |
---|
739 | |
---|
740 | good = true; |
---|
741 | } |
---|
742 | return good; |
---|
743 | } |
---|
744 | |
---|
745 | ////////////////////////////////////////////////////////////////////////////// |
---|
746 | // |
---|
747 | // Dispatch to parameterisation for replication mechanism dimension |
---|
748 | // computation & modification. |
---|
749 | |
---|
750 | void G4Trap::ComputeDimensions( G4VPVParameterisation* p, |
---|
751 | const G4int n, |
---|
752 | const G4VPhysicalVolume* pRep ) |
---|
753 | { |
---|
754 | p->ComputeDimensions(*this,n,pRep); |
---|
755 | } |
---|
756 | |
---|
757 | |
---|
758 | //////////////////////////////////////////////////////////////////////// |
---|
759 | // |
---|
760 | // Calculate extent under transform and specified limit |
---|
761 | |
---|
762 | G4bool G4Trap::CalculateExtent( const EAxis pAxis, |
---|
763 | const G4VoxelLimits& pVoxelLimit, |
---|
764 | const G4AffineTransform& pTransform, |
---|
765 | G4double& pMin, G4double& pMax) const |
---|
766 | { |
---|
767 | G4double xMin, xMax, yMin, yMax, zMin, zMax; |
---|
768 | G4bool flag; |
---|
769 | |
---|
770 | if (!pTransform.IsRotated()) |
---|
771 | { |
---|
772 | // Special case handling for unrotated trapezoids |
---|
773 | // Compute z/x/y/ mins and maxs respecting limits, with early returns |
---|
774 | // if outside limits. Then switch() on pAxis |
---|
775 | |
---|
776 | G4int i ; |
---|
777 | G4double xoffset; |
---|
778 | G4double yoffset; |
---|
779 | G4double zoffset; |
---|
780 | G4double temp[8] ; // some points for intersection with zMin/zMax |
---|
781 | G4ThreeVector pt[8]; // vertices after translation |
---|
782 | |
---|
783 | xoffset=pTransform.NetTranslation().x(); |
---|
784 | yoffset=pTransform.NetTranslation().y(); |
---|
785 | zoffset=pTransform.NetTranslation().z(); |
---|
786 | |
---|
787 | pt[0]=G4ThreeVector(xoffset-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
---|
788 | yoffset-fDz*fTthetaSphi-fDy1,zoffset-fDz); |
---|
789 | pt[1]=G4ThreeVector(xoffset-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
---|
790 | yoffset-fDz*fTthetaSphi-fDy1,zoffset-fDz); |
---|
791 | pt[2]=G4ThreeVector(xoffset-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
---|
792 | yoffset-fDz*fTthetaSphi+fDy1,zoffset-fDz); |
---|
793 | pt[3]=G4ThreeVector(xoffset-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
---|
794 | yoffset-fDz*fTthetaSphi+fDy1,zoffset-fDz); |
---|
795 | pt[4]=G4ThreeVector(xoffset+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
---|
796 | yoffset+fDz*fTthetaSphi-fDy2,zoffset+fDz); |
---|
797 | pt[5]=G4ThreeVector(xoffset+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
---|
798 | yoffset+fDz*fTthetaSphi-fDy2,zoffset+fDz); |
---|
799 | pt[6]=G4ThreeVector(xoffset+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
---|
800 | yoffset+fDz*fTthetaSphi+fDy2,zoffset+fDz); |
---|
801 | pt[7]=G4ThreeVector(xoffset+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
---|
802 | yoffset+fDz*fTthetaSphi+fDy2,zoffset+fDz); |
---|
803 | zMin=zoffset-fDz; |
---|
804 | zMax=zoffset+fDz; |
---|
805 | |
---|
806 | if ( pVoxelLimit.IsZLimited() ) |
---|
807 | { |
---|
808 | if ( (zMin > pVoxelLimit.GetMaxZExtent() + kCarTolerance) |
---|
809 | || (zMax < pVoxelLimit.GetMinZExtent() - kCarTolerance) ) |
---|
810 | { |
---|
811 | return false; |
---|
812 | } |
---|
813 | else |
---|
814 | { |
---|
815 | if ( zMin < pVoxelLimit.GetMinZExtent() ) |
---|
816 | { |
---|
817 | zMin = pVoxelLimit.GetMinZExtent() ; |
---|
818 | } |
---|
819 | if ( zMax > pVoxelLimit.GetMaxZExtent() ) |
---|
820 | { |
---|
821 | zMax = pVoxelLimit.GetMaxZExtent() ; |
---|
822 | } |
---|
823 | } |
---|
824 | } |
---|
825 | temp[0] = pt[0].y()+(pt[4].y()-pt[0].y())*(zMin-pt[0].z()) |
---|
826 | /(pt[4].z()-pt[0].z()) ; |
---|
827 | temp[1] = pt[0].y()+(pt[4].y()-pt[0].y())*(zMax-pt[0].z()) |
---|
828 | /(pt[4].z()-pt[0].z()) ; |
---|
829 | temp[2] = pt[2].y()+(pt[6].y()-pt[2].y())*(zMin-pt[2].z()) |
---|
830 | /(pt[6].z()-pt[2].z()) ; |
---|
831 | temp[3] = pt[2].y()+(pt[6].y()-pt[2].y())*(zMax-pt[2].z()) |
---|
832 | /(pt[6].z()-pt[2].z()) ; |
---|
833 | |
---|
834 | yMax = yoffset - std::fabs(fDz*fTthetaSphi) - fDy1 - fDy2 ; |
---|
835 | yMin = -yMax ; |
---|
836 | |
---|
837 | for( i = 0 ; i < 4 ; i++ ) |
---|
838 | { |
---|
839 | if( temp[i] > yMax ) yMax = temp[i] ; |
---|
840 | if( temp[i] < yMin ) yMin = temp[i] ; |
---|
841 | } |
---|
842 | if ( pVoxelLimit.IsYLimited() ) |
---|
843 | { |
---|
844 | if ( (yMin > pVoxelLimit.GetMaxYExtent() + kCarTolerance) |
---|
845 | || (yMax < pVoxelLimit.GetMinYExtent() - kCarTolerance) ) |
---|
846 | { |
---|
847 | return false; |
---|
848 | } |
---|
849 | else |
---|
850 | { |
---|
851 | if ( yMin < pVoxelLimit.GetMinYExtent() ) |
---|
852 | { |
---|
853 | yMin = pVoxelLimit.GetMinYExtent() ; |
---|
854 | } |
---|
855 | if ( yMax > pVoxelLimit.GetMaxYExtent() ) |
---|
856 | { |
---|
857 | yMax = pVoxelLimit.GetMaxYExtent() ; |
---|
858 | } |
---|
859 | } |
---|
860 | } |
---|
861 | temp[0] = pt[0].x()+(pt[4].x()-pt[0].x()) |
---|
862 | *(zMin-pt[0].z())/(pt[4].z()-pt[0].z()) ; |
---|
863 | temp[1] = pt[0].x()+(pt[4].x()-pt[0].x()) |
---|
864 | *(zMax-pt[0].z())/(pt[4].z()-pt[0].z()) ; |
---|
865 | temp[2] = pt[2].x()+(pt[6].x()-pt[2].x()) |
---|
866 | *(zMin-pt[2].z())/(pt[6].z()-pt[2].z()) ; |
---|
867 | temp[3] = pt[2].x()+(pt[6].x()-pt[2].x()) |
---|
868 | *(zMax-pt[2].z())/(pt[6].z()-pt[2].z()) ; |
---|
869 | temp[4] = pt[3].x()+(pt[7].x()-pt[3].x()) |
---|
870 | *(zMin-pt[3].z())/(pt[7].z()-pt[3].z()) ; |
---|
871 | temp[5] = pt[3].x()+(pt[7].x()-pt[3].x()) |
---|
872 | *(zMax-pt[3].z())/(pt[7].z()-pt[3].z()) ; |
---|
873 | temp[6] = pt[1].x()+(pt[5].x()-pt[1].x()) |
---|
874 | *(zMin-pt[1].z())/(pt[5].z()-pt[1].z()) ; |
---|
875 | temp[7] = pt[1].x()+(pt[5].x()-pt[1].x()) |
---|
876 | *(zMax-pt[1].z())/(pt[5].z()-pt[1].z()) ; |
---|
877 | |
---|
878 | xMax = xoffset - std::fabs(fDz*fTthetaCphi) - fDx1 - fDx2 -fDx3 - fDx4 ; |
---|
879 | xMin = -xMax ; |
---|
880 | |
---|
881 | for( i = 0 ; i < 8 ; i++ ) |
---|
882 | { |
---|
883 | if( temp[i] > xMax) xMax = temp[i] ; |
---|
884 | if( temp[i] < xMin) xMin = temp[i] ; |
---|
885 | } |
---|
886 | if (pVoxelLimit.IsXLimited()) // xMax/Min = f(yMax/Min) ? |
---|
887 | { |
---|
888 | if ( (xMin > pVoxelLimit.GetMaxXExtent() + kCarTolerance) |
---|
889 | || (xMax < pVoxelLimit.GetMinXExtent() - kCarTolerance) ) |
---|
890 | { |
---|
891 | return false; |
---|
892 | } |
---|
893 | else |
---|
894 | { |
---|
895 | if ( xMin < pVoxelLimit.GetMinXExtent() ) |
---|
896 | { |
---|
897 | xMin = pVoxelLimit.GetMinXExtent() ; |
---|
898 | } |
---|
899 | if ( xMax > pVoxelLimit.GetMaxXExtent() ) |
---|
900 | { |
---|
901 | xMax = pVoxelLimit.GetMaxXExtent() ; |
---|
902 | } |
---|
903 | } |
---|
904 | } |
---|
905 | switch (pAxis) |
---|
906 | { |
---|
907 | case kXAxis: |
---|
908 | pMin=xMin; |
---|
909 | pMax=xMax; |
---|
910 | break; |
---|
911 | |
---|
912 | case kYAxis: |
---|
913 | pMin=yMin; |
---|
914 | pMax=yMax; |
---|
915 | break; |
---|
916 | |
---|
917 | case kZAxis: |
---|
918 | pMin=zMin; |
---|
919 | pMax=zMax; |
---|
920 | break; |
---|
921 | |
---|
922 | default: |
---|
923 | break; |
---|
924 | } |
---|
925 | pMin -= kCarTolerance; |
---|
926 | pMax += kCarTolerance; |
---|
927 | |
---|
928 | flag = true; |
---|
929 | } |
---|
930 | else // General rotated case - |
---|
931 | { |
---|
932 | G4bool existsAfterClip = false ; |
---|
933 | G4ThreeVectorList* vertices; |
---|
934 | pMin = +kInfinity; |
---|
935 | pMax = -kInfinity; |
---|
936 | |
---|
937 | // Calculate rotated vertex coordinates. Operator 'new' is called |
---|
938 | |
---|
939 | vertices = CreateRotatedVertices(pTransform); |
---|
940 | |
---|
941 | xMin = +kInfinity; yMin = +kInfinity; zMin = +kInfinity; |
---|
942 | xMax = -kInfinity; yMax = -kInfinity; zMax = -kInfinity; |
---|
943 | |
---|
944 | for( G4int nv = 0 ; nv < 8 ; nv++ ) |
---|
945 | { |
---|
946 | if( (*vertices)[nv].x() > xMax ) xMax = (*vertices)[nv].x(); |
---|
947 | if( (*vertices)[nv].y() > yMax ) yMax = (*vertices)[nv].y(); |
---|
948 | if( (*vertices)[nv].z() > zMax ) zMax = (*vertices)[nv].z(); |
---|
949 | |
---|
950 | if( (*vertices)[nv].x() < xMin ) xMin = (*vertices)[nv].x(); |
---|
951 | if( (*vertices)[nv].y() < yMin ) yMin = (*vertices)[nv].y(); |
---|
952 | if( (*vertices)[nv].z() < zMin ) zMin = (*vertices)[nv].z(); |
---|
953 | } |
---|
954 | if ( pVoxelLimit.IsZLimited() ) |
---|
955 | { |
---|
956 | if ( (zMin > pVoxelLimit.GetMaxZExtent() + kCarTolerance) |
---|
957 | || (zMax < pVoxelLimit.GetMinZExtent() - kCarTolerance) ) |
---|
958 | { |
---|
959 | delete vertices ; // 'new' in the function called |
---|
960 | return false; |
---|
961 | } |
---|
962 | else |
---|
963 | { |
---|
964 | if ( zMin < pVoxelLimit.GetMinZExtent() ) |
---|
965 | { |
---|
966 | zMin = pVoxelLimit.GetMinZExtent() ; |
---|
967 | } |
---|
968 | if ( zMax > pVoxelLimit.GetMaxZExtent() ) |
---|
969 | { |
---|
970 | zMax = pVoxelLimit.GetMaxZExtent() ; |
---|
971 | } |
---|
972 | } |
---|
973 | } |
---|
974 | if ( pVoxelLimit.IsYLimited() ) |
---|
975 | { |
---|
976 | if ( (yMin > pVoxelLimit.GetMaxYExtent() + kCarTolerance) |
---|
977 | || (yMax < pVoxelLimit.GetMinYExtent() - kCarTolerance) ) |
---|
978 | { |
---|
979 | delete vertices ; // 'new' in the function called |
---|
980 | return false; |
---|
981 | } |
---|
982 | else |
---|
983 | { |
---|
984 | if ( yMin < pVoxelLimit.GetMinYExtent() ) |
---|
985 | { |
---|
986 | yMin = pVoxelLimit.GetMinYExtent() ; |
---|
987 | } |
---|
988 | if ( yMax > pVoxelLimit.GetMaxYExtent() ) |
---|
989 | { |
---|
990 | yMax = pVoxelLimit.GetMaxYExtent() ; |
---|
991 | } |
---|
992 | } |
---|
993 | } |
---|
994 | if ( pVoxelLimit.IsXLimited() ) |
---|
995 | { |
---|
996 | if ( (xMin > pVoxelLimit.GetMaxXExtent() + kCarTolerance) |
---|
997 | || (xMax < pVoxelLimit.GetMinXExtent() - kCarTolerance) ) |
---|
998 | { |
---|
999 | delete vertices ; // 'new' in the function called |
---|
1000 | return false ; |
---|
1001 | } |
---|
1002 | else |
---|
1003 | { |
---|
1004 | if ( xMin < pVoxelLimit.GetMinXExtent() ) |
---|
1005 | { |
---|
1006 | xMin = pVoxelLimit.GetMinXExtent() ; |
---|
1007 | } |
---|
1008 | if ( xMax > pVoxelLimit.GetMaxXExtent() ) |
---|
1009 | { |
---|
1010 | xMax = pVoxelLimit.GetMaxXExtent() ; |
---|
1011 | } |
---|
1012 | } |
---|
1013 | } |
---|
1014 | switch (pAxis) |
---|
1015 | { |
---|
1016 | case kXAxis: |
---|
1017 | pMin=xMin; |
---|
1018 | pMax=xMax; |
---|
1019 | break; |
---|
1020 | |
---|
1021 | case kYAxis: |
---|
1022 | pMin=yMin; |
---|
1023 | pMax=yMax; |
---|
1024 | break; |
---|
1025 | |
---|
1026 | case kZAxis: |
---|
1027 | pMin=zMin; |
---|
1028 | pMax=zMax; |
---|
1029 | break; |
---|
1030 | |
---|
1031 | default: |
---|
1032 | break; |
---|
1033 | } |
---|
1034 | if ( (pMin != kInfinity) || (pMax != -kInfinity) ) |
---|
1035 | { |
---|
1036 | existsAfterClip=true; |
---|
1037 | |
---|
1038 | // Add tolerance to avoid precision troubles |
---|
1039 | // |
---|
1040 | pMin -= kCarTolerance ; |
---|
1041 | pMax += kCarTolerance ; |
---|
1042 | } |
---|
1043 | delete vertices ; // 'new' in the function called |
---|
1044 | flag = existsAfterClip ; |
---|
1045 | } |
---|
1046 | return flag; |
---|
1047 | } |
---|
1048 | |
---|
1049 | |
---|
1050 | //////////////////////////////////////////////////////////////////////// |
---|
1051 | // |
---|
1052 | // Return whether point inside/outside/on surface, using tolerance |
---|
1053 | |
---|
1054 | EInside G4Trap::Inside( const G4ThreeVector& p ) const |
---|
1055 | { |
---|
1056 | EInside in; |
---|
1057 | G4double Dist; |
---|
1058 | G4int i; |
---|
1059 | if ( std::fabs(p.z()) <= fDz-kCarTolerance*0.5) |
---|
1060 | { |
---|
1061 | in = kInside; |
---|
1062 | |
---|
1063 | for ( i = 0;i < 4;i++ ) |
---|
1064 | { |
---|
1065 | Dist = fPlanes[i].a*p.x() + fPlanes[i].b*p.y() |
---|
1066 | +fPlanes[i].c*p.z() + fPlanes[i].d; |
---|
1067 | |
---|
1068 | if (Dist > kCarTolerance*0.5) return in = kOutside; |
---|
1069 | else if (Dist > -kCarTolerance*0.5) in = kSurface; |
---|
1070 | |
---|
1071 | } |
---|
1072 | } |
---|
1073 | else if (std::fabs(p.z()) <= fDz+kCarTolerance*0.5) |
---|
1074 | { |
---|
1075 | in = kSurface; |
---|
1076 | |
---|
1077 | for ( i = 0; i < 4; i++ ) |
---|
1078 | { |
---|
1079 | Dist = fPlanes[i].a*p.x() + fPlanes[i].b*p.y() |
---|
1080 | +fPlanes[i].c*p.z() + fPlanes[i].d; |
---|
1081 | |
---|
1082 | if (Dist > kCarTolerance*0.5) return in = kOutside; |
---|
1083 | } |
---|
1084 | } |
---|
1085 | else in = kOutside; |
---|
1086 | |
---|
1087 | return in; |
---|
1088 | } |
---|
1089 | |
---|
1090 | ///////////////////////////////////////////////////////////////////////////// |
---|
1091 | // |
---|
1092 | // Calculate side nearest to p, and return normal |
---|
1093 | // If 2+ sides equidistant, first side's normal returned (arbitrarily) |
---|
1094 | |
---|
1095 | G4ThreeVector G4Trap::SurfaceNormal( const G4ThreeVector& p ) const |
---|
1096 | { |
---|
1097 | G4int i, imin = 0, noSurfaces = 0; |
---|
1098 | G4double dist, distz, distx, disty, distmx, distmy, safe = kInfinity; |
---|
1099 | G4double delta = 0.5*kCarTolerance; |
---|
1100 | G4ThreeVector norm, sumnorm(0.,0.,0.); |
---|
1101 | |
---|
1102 | for (i = 0; i < 4; i++) |
---|
1103 | { |
---|
1104 | dist = std::fabs(fPlanes[i].a*p.x() + fPlanes[i].b*p.y() |
---|
1105 | + fPlanes[i].c*p.z() + fPlanes[i].d); |
---|
1106 | if ( dist < safe ) |
---|
1107 | { |
---|
1108 | safe = dist; |
---|
1109 | imin = i; |
---|
1110 | } |
---|
1111 | } |
---|
1112 | distz = std::fabs( std::fabs( p.z() ) - fDz ); |
---|
1113 | |
---|
1114 | distmy = std::fabs( fPlanes[0].a*p.x() + fPlanes[0].b*p.y() |
---|
1115 | + fPlanes[0].c*p.z() + fPlanes[0].d ); |
---|
1116 | |
---|
1117 | disty = std::fabs( fPlanes[1].a*p.x() + fPlanes[1].b*p.y() |
---|
1118 | + fPlanes[1].c*p.z() + fPlanes[1].d ); |
---|
1119 | |
---|
1120 | distmx = std::fabs( fPlanes[2].a*p.x() + fPlanes[2].b*p.y() |
---|
1121 | + fPlanes[2].c*p.z() + fPlanes[2].d ); |
---|
1122 | |
---|
1123 | distx = std::fabs( fPlanes[3].a*p.x() + fPlanes[3].b*p.y() |
---|
1124 | + fPlanes[3].c*p.z() + fPlanes[3].d ); |
---|
1125 | |
---|
1126 | G4ThreeVector nX = G4ThreeVector(fPlanes[3].a,fPlanes[3].b,fPlanes[3].c); |
---|
1127 | G4ThreeVector nmX = G4ThreeVector(fPlanes[2].a,fPlanes[2].b,fPlanes[2].c); |
---|
1128 | G4ThreeVector nY = G4ThreeVector(fPlanes[1].a,fPlanes[1].b,fPlanes[1].c); |
---|
1129 | G4ThreeVector nmY = G4ThreeVector(fPlanes[0].a,fPlanes[0].b,fPlanes[0].c); |
---|
1130 | G4ThreeVector nZ = G4ThreeVector(0.,0.,1.0); |
---|
1131 | |
---|
1132 | if (distx <= delta) |
---|
1133 | { |
---|
1134 | noSurfaces ++; |
---|
1135 | sumnorm += nX; |
---|
1136 | } |
---|
1137 | if (distmx <= delta) |
---|
1138 | { |
---|
1139 | noSurfaces ++; |
---|
1140 | sumnorm += nmX; |
---|
1141 | } |
---|
1142 | if (disty <= delta) |
---|
1143 | { |
---|
1144 | noSurfaces ++; |
---|
1145 | sumnorm += nY; |
---|
1146 | } |
---|
1147 | if (distmy <= delta) |
---|
1148 | { |
---|
1149 | noSurfaces ++; |
---|
1150 | sumnorm += nmY; |
---|
1151 | } |
---|
1152 | if (distz <= delta) |
---|
1153 | { |
---|
1154 | noSurfaces ++; |
---|
1155 | if ( p.z() >= 0.) sumnorm += nZ; |
---|
1156 | else sumnorm -= nZ; |
---|
1157 | } |
---|
1158 | if ( noSurfaces == 0 ) |
---|
1159 | { |
---|
1160 | #ifdef G4CSGDEBUG |
---|
1161 | G4Exception("G4Trap::SurfaceNormal(p)", "Notification", JustWarning, |
---|
1162 | "Point p is not on surface !?" ); |
---|
1163 | #endif |
---|
1164 | norm = ApproxSurfaceNormal(p); |
---|
1165 | } |
---|
1166 | else if ( noSurfaces == 1 ) norm = sumnorm; |
---|
1167 | else norm = sumnorm.unit(); |
---|
1168 | return norm; |
---|
1169 | } |
---|
1170 | |
---|
1171 | //////////////////////////////////////////////////////////////////////////////////// |
---|
1172 | // |
---|
1173 | // Algorithm for SurfaceNormal() following the original specification |
---|
1174 | // for points not on the surface |
---|
1175 | |
---|
1176 | G4ThreeVector G4Trap::ApproxSurfaceNormal( const G4ThreeVector& p ) const |
---|
1177 | { |
---|
1178 | G4double safe=kInfinity,Dist,safez; |
---|
1179 | G4int i,imin=0; |
---|
1180 | for (i=0;i<4;i++) |
---|
1181 | { |
---|
1182 | Dist=std::fabs(fPlanes[i].a*p.x()+fPlanes[i].b*p.y() |
---|
1183 | +fPlanes[i].c*p.z()+fPlanes[i].d); |
---|
1184 | if (Dist<safe) |
---|
1185 | { |
---|
1186 | safe=Dist; |
---|
1187 | imin=i; |
---|
1188 | } |
---|
1189 | } |
---|
1190 | safez=std::fabs(std::fabs(p.z())-fDz); |
---|
1191 | if (safe<safez) |
---|
1192 | { |
---|
1193 | return G4ThreeVector(fPlanes[imin].a,fPlanes[imin].b,fPlanes[imin].c); |
---|
1194 | } |
---|
1195 | else |
---|
1196 | { |
---|
1197 | if (p.z()>0) |
---|
1198 | { |
---|
1199 | return G4ThreeVector(0,0,1); |
---|
1200 | } |
---|
1201 | else |
---|
1202 | { |
---|
1203 | return G4ThreeVector(0,0,-1); |
---|
1204 | } |
---|
1205 | } |
---|
1206 | } |
---|
1207 | |
---|
1208 | //////////////////////////////////////////////////////////////////////////// |
---|
1209 | // |
---|
1210 | // Calculate distance to shape from outside - return kInfinity if no intersection |
---|
1211 | // |
---|
1212 | // ALGORITHM: |
---|
1213 | // For each component, calculate pair of minimum and maximum intersection |
---|
1214 | // values for which the particle is in the extent of the shape |
---|
1215 | // - The smallest (MAX minimum) allowed distance of the pairs is intersect |
---|
1216 | |
---|
1217 | G4double G4Trap::DistanceToIn( const G4ThreeVector& p, |
---|
1218 | const G4ThreeVector& v ) const |
---|
1219 | { |
---|
1220 | |
---|
1221 | G4double snxt; // snxt = default return value |
---|
1222 | G4double max,smax,smin; |
---|
1223 | G4double pdist,Comp,vdist; |
---|
1224 | G4int i; |
---|
1225 | // |
---|
1226 | // Z Intersection range |
---|
1227 | // |
---|
1228 | if ( v.z() > 0 ) |
---|
1229 | { |
---|
1230 | max = fDz - p.z() ; |
---|
1231 | if (max > 0.5*kCarTolerance) |
---|
1232 | { |
---|
1233 | smax = max/v.z(); |
---|
1234 | smin = (-fDz-p.z())/v.z(); |
---|
1235 | } |
---|
1236 | else |
---|
1237 | { |
---|
1238 | return snxt=kInfinity; |
---|
1239 | } |
---|
1240 | } |
---|
1241 | else if (v.z() < 0 ) |
---|
1242 | { |
---|
1243 | max = - fDz - p.z() ; |
---|
1244 | if (max < -0.5*kCarTolerance ) |
---|
1245 | { |
---|
1246 | smax=max/v.z(); |
---|
1247 | smin=(fDz-p.z())/v.z(); |
---|
1248 | } |
---|
1249 | else |
---|
1250 | { |
---|
1251 | return snxt=kInfinity; |
---|
1252 | } |
---|
1253 | } |
---|
1254 | else |
---|
1255 | { |
---|
1256 | if (std::fabs(p.z())<fDz - 0.5*kCarTolerance) // Inside was <=fDz |
---|
1257 | { |
---|
1258 | smin=0; |
---|
1259 | smax=kInfinity; |
---|
1260 | } |
---|
1261 | else |
---|
1262 | { |
---|
1263 | return snxt=kInfinity; |
---|
1264 | } |
---|
1265 | } |
---|
1266 | |
---|
1267 | for (i=0;i<4;i++) |
---|
1268 | { |
---|
1269 | pdist=fPlanes[i].a*p.x()+fPlanes[i].b*p.y() |
---|
1270 | +fPlanes[i].c*p.z()+fPlanes[i].d; |
---|
1271 | Comp=fPlanes[i].a*v.x()+fPlanes[i].b*v.y()+fPlanes[i].c*v.z(); |
---|
1272 | if ( pdist >= -0.5*kCarTolerance ) // was >0 |
---|
1273 | { |
---|
1274 | // |
---|
1275 | // Outside the plane -> this is an extent entry distance |
---|
1276 | // |
---|
1277 | if (Comp >= 0) // was >0 |
---|
1278 | { |
---|
1279 | return snxt=kInfinity ; |
---|
1280 | } |
---|
1281 | else |
---|
1282 | { |
---|
1283 | vdist=-pdist/Comp; |
---|
1284 | if (vdist>smin) |
---|
1285 | { |
---|
1286 | if (vdist<smax) |
---|
1287 | { |
---|
1288 | smin = vdist; |
---|
1289 | } |
---|
1290 | else |
---|
1291 | { |
---|
1292 | return snxt=kInfinity; |
---|
1293 | } |
---|
1294 | } |
---|
1295 | } |
---|
1296 | } |
---|
1297 | else |
---|
1298 | { |
---|
1299 | // |
---|
1300 | // Inside the plane -> couble be an extent exit distance (smax) |
---|
1301 | // |
---|
1302 | if (Comp>0) // Will leave extent |
---|
1303 | { |
---|
1304 | vdist=-pdist/Comp; |
---|
1305 | if (vdist<smax) |
---|
1306 | { |
---|
1307 | if (vdist>smin) |
---|
1308 | { |
---|
1309 | smax=vdist; |
---|
1310 | } |
---|
1311 | else |
---|
1312 | { |
---|
1313 | return snxt=kInfinity; |
---|
1314 | } |
---|
1315 | } |
---|
1316 | } |
---|
1317 | } |
---|
1318 | } |
---|
1319 | // |
---|
1320 | // Checks in non z plane intersections ensure smin<smax |
---|
1321 | // |
---|
1322 | if (smin >=0 ) |
---|
1323 | { |
---|
1324 | snxt = smin ; |
---|
1325 | } |
---|
1326 | else |
---|
1327 | { |
---|
1328 | snxt = 0 ; |
---|
1329 | } |
---|
1330 | return snxt; |
---|
1331 | } |
---|
1332 | |
---|
1333 | /////////////////////////////////////////////////////////////////////////// |
---|
1334 | // |
---|
1335 | // Calculate exact shortest distance to any boundary from outside |
---|
1336 | // This is the best fast estimation of the shortest distance to trap |
---|
1337 | // - Returns 0 is ThreeVector inside |
---|
1338 | |
---|
1339 | G4double G4Trap::DistanceToIn( const G4ThreeVector& p ) const |
---|
1340 | { |
---|
1341 | G4double safe=0.0,Dist; |
---|
1342 | G4int i; |
---|
1343 | safe=std::fabs(p.z())-fDz; |
---|
1344 | for (i=0;i<4;i++) |
---|
1345 | { |
---|
1346 | Dist=fPlanes[i].a*p.x()+fPlanes[i].b*p.y() |
---|
1347 | +fPlanes[i].c*p.z()+fPlanes[i].d; |
---|
1348 | if (Dist > safe) safe=Dist; |
---|
1349 | } |
---|
1350 | if (safe<0) safe=0; |
---|
1351 | return safe; |
---|
1352 | } |
---|
1353 | |
---|
1354 | ///////////////////////////////////////////////////////////////////////////////// |
---|
1355 | // |
---|
1356 | // Calculate distance to surface of shape from inside |
---|
1357 | // Calculate distance to x/y/z planes - smallest is exiting distance |
---|
1358 | |
---|
1359 | G4double G4Trap::DistanceToOut(const G4ThreeVector& p, const G4ThreeVector& v, |
---|
1360 | const G4bool calcNorm, |
---|
1361 | G4bool *validNorm, G4ThreeVector *n) const |
---|
1362 | { |
---|
1363 | Eside side = kUndef; |
---|
1364 | G4double snxt; // snxt = return value |
---|
1365 | G4double pdist,Comp,vdist,max; |
---|
1366 | // |
---|
1367 | // Z Intersections |
---|
1368 | // |
---|
1369 | if (v.z()>0) |
---|
1370 | { |
---|
1371 | max=fDz-p.z(); |
---|
1372 | if (max>kCarTolerance/2) |
---|
1373 | { |
---|
1374 | snxt=max/v.z(); |
---|
1375 | side=kPZ; |
---|
1376 | } |
---|
1377 | else |
---|
1378 | { |
---|
1379 | if (calcNorm) |
---|
1380 | { |
---|
1381 | *validNorm=true; |
---|
1382 | *n=G4ThreeVector(0,0,1); |
---|
1383 | } |
---|
1384 | return snxt=0; |
---|
1385 | } |
---|
1386 | } |
---|
1387 | else if (v.z()<0) |
---|
1388 | { |
---|
1389 | max=-fDz-p.z(); |
---|
1390 | if (max<-kCarTolerance/2) |
---|
1391 | { |
---|
1392 | snxt=max/v.z(); |
---|
1393 | side=kMZ; |
---|
1394 | } |
---|
1395 | else |
---|
1396 | { |
---|
1397 | if (calcNorm) |
---|
1398 | { |
---|
1399 | *validNorm=true; |
---|
1400 | *n=G4ThreeVector(0,0,-1); |
---|
1401 | } |
---|
1402 | return snxt=0; |
---|
1403 | } |
---|
1404 | } |
---|
1405 | else |
---|
1406 | { |
---|
1407 | snxt=kInfinity; |
---|
1408 | } |
---|
1409 | |
---|
1410 | // |
---|
1411 | // Intersections with planes[0] (expanded because of setting enum) |
---|
1412 | // |
---|
1413 | pdist=fPlanes[0].a*p.x()+fPlanes[0].b*p.y()+fPlanes[0].c*p.z()+fPlanes[0].d; |
---|
1414 | Comp=fPlanes[0].a*v.x()+fPlanes[0].b*v.y()+fPlanes[0].c*v.z(); |
---|
1415 | if (pdist>0) |
---|
1416 | { |
---|
1417 | // Outside the plane |
---|
1418 | if (Comp>0) |
---|
1419 | { |
---|
1420 | // Leaving immediately |
---|
1421 | if (calcNorm) |
---|
1422 | { |
---|
1423 | *validNorm=true; |
---|
1424 | *n=G4ThreeVector(fPlanes[0].a,fPlanes[0].b,fPlanes[0].c); |
---|
1425 | } |
---|
1426 | return snxt=0; |
---|
1427 | } |
---|
1428 | } |
---|
1429 | else if (pdist<-kCarTolerance/2) |
---|
1430 | { |
---|
1431 | // Inside the plane |
---|
1432 | if (Comp>0) |
---|
1433 | { |
---|
1434 | // Will leave extent |
---|
1435 | vdist=-pdist/Comp; |
---|
1436 | if (vdist<snxt) |
---|
1437 | { |
---|
1438 | snxt=vdist; |
---|
1439 | side=ks0; |
---|
1440 | } |
---|
1441 | } |
---|
1442 | } |
---|
1443 | else |
---|
1444 | { |
---|
1445 | // On surface |
---|
1446 | if (Comp>0) |
---|
1447 | { |
---|
1448 | if (calcNorm) |
---|
1449 | { |
---|
1450 | *validNorm=true; |
---|
1451 | *n=G4ThreeVector(fPlanes[0].a,fPlanes[0].b,fPlanes[0].c); |
---|
1452 | } |
---|
1453 | return snxt=0; |
---|
1454 | } |
---|
1455 | } |
---|
1456 | |
---|
1457 | // |
---|
1458 | // Intersections with planes[1] (expanded because of setting enum) |
---|
1459 | // |
---|
1460 | pdist=fPlanes[1].a*p.x()+fPlanes[1].b*p.y()+fPlanes[1].c*p.z()+fPlanes[1].d; |
---|
1461 | Comp=fPlanes[1].a*v.x()+fPlanes[1].b*v.y()+fPlanes[1].c*v.z(); |
---|
1462 | if (pdist>0) |
---|
1463 | { |
---|
1464 | // Outside the plane |
---|
1465 | if (Comp>0) |
---|
1466 | { |
---|
1467 | // Leaving immediately |
---|
1468 | if (calcNorm) |
---|
1469 | { |
---|
1470 | *validNorm=true; |
---|
1471 | *n=G4ThreeVector(fPlanes[1].a,fPlanes[1].b,fPlanes[1].c); |
---|
1472 | } |
---|
1473 | return snxt=0; |
---|
1474 | } |
---|
1475 | } |
---|
1476 | else if (pdist<-kCarTolerance/2) |
---|
1477 | { |
---|
1478 | // Inside the plane |
---|
1479 | if (Comp>0) |
---|
1480 | { |
---|
1481 | // Will leave extent |
---|
1482 | vdist=-pdist/Comp; |
---|
1483 | if (vdist<snxt) |
---|
1484 | { |
---|
1485 | snxt=vdist; |
---|
1486 | side=ks1; |
---|
1487 | } |
---|
1488 | } |
---|
1489 | } |
---|
1490 | else |
---|
1491 | { |
---|
1492 | // On surface |
---|
1493 | if (Comp>0) |
---|
1494 | { |
---|
1495 | if (calcNorm) |
---|
1496 | { |
---|
1497 | *validNorm=true; |
---|
1498 | *n=G4ThreeVector(fPlanes[1].a,fPlanes[1].b,fPlanes[1].c); |
---|
1499 | } |
---|
1500 | return snxt=0; |
---|
1501 | } |
---|
1502 | } |
---|
1503 | |
---|
1504 | // |
---|
1505 | // Intersections with planes[2] (expanded because of setting enum) |
---|
1506 | // |
---|
1507 | pdist=fPlanes[2].a*p.x()+fPlanes[2].b*p.y()+fPlanes[2].c*p.z()+fPlanes[2].d; |
---|
1508 | Comp=fPlanes[2].a*v.x()+fPlanes[2].b*v.y()+fPlanes[2].c*v.z(); |
---|
1509 | if (pdist>0) |
---|
1510 | { |
---|
1511 | // Outside the plane |
---|
1512 | if (Comp>0) |
---|
1513 | { |
---|
1514 | // Leaving immediately |
---|
1515 | if (calcNorm) |
---|
1516 | { |
---|
1517 | *validNorm=true; |
---|
1518 | *n=G4ThreeVector(fPlanes[2].a,fPlanes[2].b,fPlanes[2].c); |
---|
1519 | } |
---|
1520 | return snxt=0; |
---|
1521 | } |
---|
1522 | } |
---|
1523 | else if (pdist<-kCarTolerance/2) |
---|
1524 | { |
---|
1525 | // Inside the plane |
---|
1526 | if (Comp>0) |
---|
1527 | { |
---|
1528 | // Will leave extent |
---|
1529 | vdist=-pdist/Comp; |
---|
1530 | if (vdist<snxt) |
---|
1531 | { |
---|
1532 | snxt=vdist; |
---|
1533 | side=ks2; |
---|
1534 | } |
---|
1535 | } |
---|
1536 | } |
---|
1537 | else |
---|
1538 | { |
---|
1539 | // On surface |
---|
1540 | if (Comp>0) |
---|
1541 | { |
---|
1542 | if (calcNorm) |
---|
1543 | { |
---|
1544 | *validNorm=true; |
---|
1545 | *n=G4ThreeVector(fPlanes[2].a,fPlanes[2].b,fPlanes[2].c); |
---|
1546 | } |
---|
1547 | return snxt=0; |
---|
1548 | } |
---|
1549 | } |
---|
1550 | |
---|
1551 | // |
---|
1552 | // Intersections with planes[3] (expanded because of setting enum) |
---|
1553 | // |
---|
1554 | pdist=fPlanes[3].a*p.x()+fPlanes[3].b*p.y()+fPlanes[3].c*p.z()+fPlanes[3].d; |
---|
1555 | Comp=fPlanes[3].a*v.x()+fPlanes[3].b*v.y()+fPlanes[3].c*v.z(); |
---|
1556 | if (pdist>0) |
---|
1557 | { |
---|
1558 | // Outside the plane |
---|
1559 | if (Comp>0) |
---|
1560 | { |
---|
1561 | // Leaving immediately |
---|
1562 | if (calcNorm) |
---|
1563 | { |
---|
1564 | *validNorm=true; |
---|
1565 | *n=G4ThreeVector(fPlanes[3].a,fPlanes[3].b,fPlanes[3].c); |
---|
1566 | } |
---|
1567 | return snxt=0; |
---|
1568 | } |
---|
1569 | } |
---|
1570 | else if (pdist<-kCarTolerance/2) |
---|
1571 | { |
---|
1572 | // Inside the plane |
---|
1573 | if (Comp>0) |
---|
1574 | { |
---|
1575 | // Will leave extent |
---|
1576 | vdist=-pdist/Comp; |
---|
1577 | if (vdist<snxt) |
---|
1578 | { |
---|
1579 | snxt=vdist; |
---|
1580 | side=ks3; |
---|
1581 | } |
---|
1582 | } |
---|
1583 | } |
---|
1584 | else |
---|
1585 | { |
---|
1586 | // On surface |
---|
1587 | if (Comp>0) |
---|
1588 | { |
---|
1589 | if (calcNorm) |
---|
1590 | { |
---|
1591 | *validNorm=true; |
---|
1592 | *n=G4ThreeVector(fPlanes[3].a,fPlanes[3].b,fPlanes[3].c); |
---|
1593 | } |
---|
1594 | return snxt=0; |
---|
1595 | } |
---|
1596 | } |
---|
1597 | |
---|
1598 | // set normal |
---|
1599 | if (calcNorm) |
---|
1600 | { |
---|
1601 | *validNorm=true; |
---|
1602 | switch(side) |
---|
1603 | { |
---|
1604 | case ks0: |
---|
1605 | *n=G4ThreeVector(fPlanes[0].a,fPlanes[0].b,fPlanes[0].c); |
---|
1606 | break; |
---|
1607 | case ks1: |
---|
1608 | *n=G4ThreeVector(fPlanes[1].a,fPlanes[1].b,fPlanes[1].c); |
---|
1609 | break; |
---|
1610 | case ks2: |
---|
1611 | *n=G4ThreeVector(fPlanes[2].a,fPlanes[2].b,fPlanes[2].c); |
---|
1612 | break; |
---|
1613 | case ks3: |
---|
1614 | *n=G4ThreeVector(fPlanes[3].a,fPlanes[3].b,fPlanes[3].c); |
---|
1615 | break; |
---|
1616 | case kMZ: |
---|
1617 | *n=G4ThreeVector(0,0,-1); |
---|
1618 | break; |
---|
1619 | case kPZ: |
---|
1620 | *n=G4ThreeVector(0,0,1); |
---|
1621 | break; |
---|
1622 | default: |
---|
1623 | G4cout.precision(16); |
---|
1624 | G4cout << G4endl; |
---|
1625 | DumpInfo(); |
---|
1626 | G4cout << "Position:" << G4endl << G4endl; |
---|
1627 | G4cout << "p.x() = " << p.x()/mm << " mm" << G4endl; |
---|
1628 | G4cout << "p.y() = " << p.y()/mm << " mm" << G4endl; |
---|
1629 | G4cout << "p.z() = " << p.z()/mm << " mm" << G4endl << G4endl; |
---|
1630 | G4cout << "Direction:" << G4endl << G4endl; |
---|
1631 | G4cout << "v.x() = " << v.x() << G4endl; |
---|
1632 | G4cout << "v.y() = " << v.y() << G4endl; |
---|
1633 | G4cout << "v.z() = " << v.z() << G4endl << G4endl; |
---|
1634 | G4cout << "Proposed distance :" << G4endl << G4endl; |
---|
1635 | G4cout << "snxt = " << snxt/mm << " mm" << G4endl << G4endl; |
---|
1636 | G4Exception("G4Trap::DistanceToOut(p,v,..)","Notification",JustWarning, |
---|
1637 | "Undefined side for valid surface normal to solid."); |
---|
1638 | break; |
---|
1639 | } |
---|
1640 | } |
---|
1641 | return snxt; |
---|
1642 | } |
---|
1643 | |
---|
1644 | ////////////////////////////////////////////////////////////////////////////// |
---|
1645 | // |
---|
1646 | // Calculate exact shortest distance to any boundary from inside |
---|
1647 | // - Returns 0 is ThreeVector outside |
---|
1648 | |
---|
1649 | G4double G4Trap::DistanceToOut( const G4ThreeVector& p ) const |
---|
1650 | { |
---|
1651 | G4double safe=0.0,Dist; |
---|
1652 | G4int i; |
---|
1653 | |
---|
1654 | #ifdef G4CSGDEBUG |
---|
1655 | if( Inside(p) == kOutside ) |
---|
1656 | { |
---|
1657 | G4cout.precision(16) ; |
---|
1658 | G4cout << G4endl ; |
---|
1659 | DumpInfo(); |
---|
1660 | G4cout << "Position:" << G4endl << G4endl ; |
---|
1661 | G4cout << "p.x() = " << p.x()/mm << " mm" << G4endl ; |
---|
1662 | G4cout << "p.y() = " << p.y()/mm << " mm" << G4endl ; |
---|
1663 | G4cout << "p.z() = " << p.z()/mm << " mm" << G4endl << G4endl ; |
---|
1664 | G4Exception("G4Trap::DistanceToOut(p)", |
---|
1665 | "Notification", JustWarning, "Point p is outside !?" ); |
---|
1666 | } |
---|
1667 | #endif |
---|
1668 | |
---|
1669 | safe=fDz-std::fabs(p.z()); |
---|
1670 | if (safe<0) safe=0; |
---|
1671 | else |
---|
1672 | { |
---|
1673 | for (i=0;i<4;i++) |
---|
1674 | { |
---|
1675 | Dist=-(fPlanes[i].a*p.x()+fPlanes[i].b*p.y() |
---|
1676 | +fPlanes[i].c*p.z()+fPlanes[i].d); |
---|
1677 | if (Dist<safe) safe=Dist; |
---|
1678 | } |
---|
1679 | if (safe<0) safe=0; |
---|
1680 | } |
---|
1681 | return safe; |
---|
1682 | } |
---|
1683 | |
---|
1684 | ////////////////////////////////////////////////////////////////////////// |
---|
1685 | // |
---|
1686 | // Create a List containing the transformed vertices |
---|
1687 | // Ordering [0-3] -fDz cross section |
---|
1688 | // [4-7] +fDz cross section such that [0] is below [4], |
---|
1689 | // [1] below [5] etc. |
---|
1690 | // Note: |
---|
1691 | // Caller has deletion resposibility |
---|
1692 | |
---|
1693 | G4ThreeVectorList* |
---|
1694 | G4Trap::CreateRotatedVertices( const G4AffineTransform& pTransform ) const |
---|
1695 | { |
---|
1696 | G4ThreeVectorList *vertices; |
---|
1697 | vertices=new G4ThreeVectorList(); |
---|
1698 | vertices->reserve(8); |
---|
1699 | if (vertices) |
---|
1700 | { |
---|
1701 | G4ThreeVector vertex0(-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
---|
1702 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
1703 | G4ThreeVector vertex1(-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
---|
1704 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
1705 | G4ThreeVector vertex2(-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
---|
1706 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
1707 | G4ThreeVector vertex3(-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
---|
1708 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
1709 | G4ThreeVector vertex4(+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
---|
1710 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
1711 | G4ThreeVector vertex5(+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
---|
1712 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
1713 | G4ThreeVector vertex6(+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
---|
1714 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
1715 | G4ThreeVector vertex7(+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
---|
1716 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
1717 | |
---|
1718 | vertices->push_back(pTransform.TransformPoint(vertex0)); |
---|
1719 | vertices->push_back(pTransform.TransformPoint(vertex1)); |
---|
1720 | vertices->push_back(pTransform.TransformPoint(vertex2)); |
---|
1721 | vertices->push_back(pTransform.TransformPoint(vertex3)); |
---|
1722 | vertices->push_back(pTransform.TransformPoint(vertex4)); |
---|
1723 | vertices->push_back(pTransform.TransformPoint(vertex5)); |
---|
1724 | vertices->push_back(pTransform.TransformPoint(vertex6)); |
---|
1725 | vertices->push_back(pTransform.TransformPoint(vertex7)); |
---|
1726 | } |
---|
1727 | else |
---|
1728 | { |
---|
1729 | DumpInfo(); |
---|
1730 | G4Exception("G4Trap::CreateRotatedVertices()", |
---|
1731 | "FatalError", FatalException, |
---|
1732 | "Error in allocation of vertices. Out of memory !"); |
---|
1733 | } |
---|
1734 | return vertices; |
---|
1735 | } |
---|
1736 | |
---|
1737 | ////////////////////////////////////////////////////////////////////////// |
---|
1738 | // |
---|
1739 | // GetEntityType |
---|
1740 | |
---|
1741 | G4GeometryType G4Trap::GetEntityType() const |
---|
1742 | { |
---|
1743 | return G4String("G4Trap"); |
---|
1744 | } |
---|
1745 | |
---|
1746 | ////////////////////////////////////////////////////////////////////////// |
---|
1747 | // |
---|
1748 | // Stream object contents to an output stream |
---|
1749 | |
---|
1750 | std::ostream& G4Trap::StreamInfo( std::ostream& os ) const |
---|
1751 | { |
---|
1752 | os << "-----------------------------------------------------------\n" |
---|
1753 | << " *** Dump for solid - " << GetName() << " ***\n" |
---|
1754 | << " ===================================================\n" |
---|
1755 | << " Solid type: G4Trap\n" |
---|
1756 | << " Parameters: \n" |
---|
1757 | << " half length Z: " << fDz/mm << " mm \n" |
---|
1758 | << " half length Y of face -fDz: " << fDy1/mm << " mm \n" |
---|
1759 | << " half length X of side -fDy1, face -fDz: " << fDx1/mm << " mm \n" |
---|
1760 | << " half length X of side +fDy1, face -fDz: " << fDx2/mm << " mm \n" |
---|
1761 | << " half length Y of face +fDz: " << fDy2/mm << " mm \n" |
---|
1762 | << " half length X of side -fDy2, face +fDz: " << fDx3/mm << " mm \n" |
---|
1763 | << " half length X of side +fDy2, face +fDz: " << fDx4/mm << " mm \n" |
---|
1764 | << " std::tan(theta)*std::cos(phi): " << fTthetaCphi/degree << " degrees \n" |
---|
1765 | << " std::tan(theta)*std::sin(phi): " << fTthetaSphi/degree << " degrees \n" |
---|
1766 | << " std::tan(alpha), -fDz: " << fTalpha1/degree << " degrees \n" |
---|
1767 | << " std::tan(alpha), +fDz: " << fTalpha2/degree << " degrees \n" |
---|
1768 | << " trap side plane equations:\n" |
---|
1769 | << " " << fPlanes[0].a << " X + " << fPlanes[0].b << " Y + " |
---|
1770 | << fPlanes[0].c << " Z + " << fPlanes[0].d << " = 0\n" |
---|
1771 | << " " << fPlanes[1].a << " X + " << fPlanes[1].b << " Y + " |
---|
1772 | << fPlanes[1].c << " Z + " << fPlanes[1].d << " = 0\n" |
---|
1773 | << " " << fPlanes[2].a << " X + " << fPlanes[2].b << " Y + " |
---|
1774 | << fPlanes[2].c << " Z + " << fPlanes[2].d << " = 0\n" |
---|
1775 | << " " << fPlanes[3].a << " X + " << fPlanes[3].b << " Y + " |
---|
1776 | << fPlanes[3].c << " Z + " << fPlanes[3].d << " = 0\n" |
---|
1777 | << "-----------------------------------------------------------\n"; |
---|
1778 | |
---|
1779 | return os; |
---|
1780 | } |
---|
1781 | |
---|
1782 | ///////////////////////////////////////////////////////////////////////// |
---|
1783 | // |
---|
1784 | // GetPointOnPlane |
---|
1785 | // |
---|
1786 | // Auxiliary method for Get Point on Surface |
---|
1787 | |
---|
1788 | G4ThreeVector G4Trap::GetPointOnPlane(G4ThreeVector p0, G4ThreeVector p1, |
---|
1789 | G4ThreeVector p2, G4ThreeVector p3, |
---|
1790 | G4double& area) const |
---|
1791 | { |
---|
1792 | G4double lambda1, lambda2, chose, aOne, aTwo; |
---|
1793 | G4ThreeVector t, u, v, w, Area, normal; |
---|
1794 | |
---|
1795 | t = p1 - p0; |
---|
1796 | u = p2 - p1; |
---|
1797 | v = p3 - p2; |
---|
1798 | w = p0 - p3; |
---|
1799 | |
---|
1800 | Area = G4ThreeVector(w.y()*v.z() - w.z()*v.y(), |
---|
1801 | w.z()*v.x() - w.x()*v.z(), |
---|
1802 | w.x()*v.y() - w.y()*v.x()); |
---|
1803 | |
---|
1804 | aOne = 0.5*Area.mag(); |
---|
1805 | |
---|
1806 | Area = G4ThreeVector(t.y()*u.z() - t.z()*u.y(), |
---|
1807 | t.z()*u.x() - t.x()*u.z(), |
---|
1808 | t.x()*u.y() - t.y()*u.x()); |
---|
1809 | |
---|
1810 | aTwo = 0.5*Area.mag(); |
---|
1811 | |
---|
1812 | area = aOne + aTwo; |
---|
1813 | |
---|
1814 | chose = RandFlat::shoot(0.,aOne+aTwo); |
---|
1815 | |
---|
1816 | if( (chose>=0.) && (chose < aOne) ) |
---|
1817 | { |
---|
1818 | lambda1 = RandFlat::shoot(0.,1.); |
---|
1819 | lambda2 = RandFlat::shoot(0.,lambda1); |
---|
1820 | return (p2+lambda1*v+lambda2*w); |
---|
1821 | } |
---|
1822 | |
---|
1823 | // else |
---|
1824 | |
---|
1825 | lambda1 = RandFlat::shoot(0.,1.); |
---|
1826 | lambda2 = RandFlat::shoot(0.,lambda1); |
---|
1827 | |
---|
1828 | return (p0+lambda1*t+lambda2*u); |
---|
1829 | } |
---|
1830 | |
---|
1831 | /////////////////////////////////////////////////////////////// |
---|
1832 | // |
---|
1833 | // GetPointOnSurface |
---|
1834 | |
---|
1835 | G4ThreeVector G4Trap::GetPointOnSurface() const |
---|
1836 | { |
---|
1837 | G4double aOne, aTwo, aThree, aFour, aFive, aSix, chose; |
---|
1838 | G4ThreeVector One, Two, Three, Four, Five, Six, test; |
---|
1839 | G4ThreeVector pt[8]; |
---|
1840 | |
---|
1841 | pt[0] = G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1-fDx1, |
---|
1842 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
1843 | pt[1] = G4ThreeVector(-fDz*fTthetaCphi-fDy1*fTalpha1+fDx1, |
---|
1844 | -fDz*fTthetaSphi-fDy1,-fDz); |
---|
1845 | pt[2] = G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1-fDx2, |
---|
1846 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
1847 | pt[3] = G4ThreeVector(-fDz*fTthetaCphi+fDy1*fTalpha1+fDx2, |
---|
1848 | -fDz*fTthetaSphi+fDy1,-fDz); |
---|
1849 | pt[4] = G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2-fDx3, |
---|
1850 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
1851 | pt[5] = G4ThreeVector(+fDz*fTthetaCphi-fDy2*fTalpha2+fDx3, |
---|
1852 | +fDz*fTthetaSphi-fDy2,+fDz); |
---|
1853 | pt[6] = G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2-fDx4, |
---|
1854 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
1855 | pt[7] = G4ThreeVector(+fDz*fTthetaCphi+fDy2*fTalpha2+fDx4, |
---|
1856 | +fDz*fTthetaSphi+fDy2,+fDz); |
---|
1857 | |
---|
1858 | // make sure we provide the points in a clockwise fashion |
---|
1859 | |
---|
1860 | One = GetPointOnPlane(pt[0],pt[1],pt[3],pt[2], aOne); |
---|
1861 | Two = GetPointOnPlane(pt[4],pt[5],pt[7],pt[6], aTwo); |
---|
1862 | Three = GetPointOnPlane(pt[6],pt[7],pt[3],pt[2], aThree); |
---|
1863 | Four = GetPointOnPlane(pt[4],pt[5],pt[1],pt[0], aFour); |
---|
1864 | Five = GetPointOnPlane(pt[0],pt[2],pt[6],pt[4], aFive); |
---|
1865 | Six = GetPointOnPlane(pt[1],pt[3],pt[7],pt[5], aSix); |
---|
1866 | |
---|
1867 | chose = RandFlat::shoot(0.,aOne+aTwo+aThree+aFour+aFive+aSix); |
---|
1868 | if( (chose>=0.) && (chose<aOne) ) |
---|
1869 | { return One; } |
---|
1870 | else if( (chose>=aOne) && (chose<aOne+aTwo) ) |
---|
1871 | { return Two; } |
---|
1872 | else if( (chose>=aOne+aTwo) && (chose<aOne+aTwo+aThree) ) |
---|
1873 | { return Three; } |
---|
1874 | else if( (chose>=aOne+aTwo+aThree) && (chose<aOne+aTwo+aThree+aFour) ) |
---|
1875 | { return Four; } |
---|
1876 | else if( (chose>=aOne+aTwo+aThree+aFour) |
---|
1877 | && (chose<aOne+aTwo+aThree+aFour+aFive) ) |
---|
1878 | { return Five; } |
---|
1879 | return Six; |
---|
1880 | } |
---|
1881 | |
---|
1882 | ////////////////////////////////////////////////////////////////////////// |
---|
1883 | // |
---|
1884 | // Methods for visualisation |
---|
1885 | |
---|
1886 | void G4Trap::DescribeYourselfTo ( G4VGraphicsScene& scene ) const |
---|
1887 | { |
---|
1888 | scene.AddSolid (*this); |
---|
1889 | } |
---|
1890 | |
---|
1891 | G4Polyhedron* G4Trap::CreatePolyhedron () const |
---|
1892 | { |
---|
1893 | G4double phi = std::atan2(fTthetaSphi, fTthetaCphi); |
---|
1894 | G4double alpha1 = std::atan(fTalpha1); |
---|
1895 | G4double alpha2 = std::atan(fTalpha2); |
---|
1896 | G4double theta = std::atan(std::sqrt(fTthetaCphi*fTthetaCphi+fTthetaSphi*fTthetaSphi)); |
---|
1897 | |
---|
1898 | return new G4PolyhedronTrap(fDz, theta, phi, |
---|
1899 | fDy1, fDx1, fDx2, alpha1, |
---|
1900 | fDy2, fDx3, fDx4, alpha2); |
---|
1901 | } |
---|
1902 | |
---|
1903 | G4NURBS* G4Trap::CreateNURBS () const |
---|
1904 | { |
---|
1905 | // return new G4NURBSbox (fDx, fDy, fDz); |
---|
1906 | return 0 ; |
---|
1907 | } |
---|