1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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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: CurveTestFunction.hh,v 1.9 2007/05/18 10:31:11 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-cand-01 $ |
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29 | ////////////////////////////////////////////////////////////////////////// |
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30 | // |
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31 | // |
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32 | // L. Broglia |
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33 | // October 26, 1998 |
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34 | // |
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35 | // Functions wich tested the basic functionnality of the different curves : |
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36 | // - line |
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37 | // - circular curve |
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38 | // - ellipse |
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39 | // - parabola |
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40 | // - hyperbola |
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41 | // |
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42 | // Test the functionality of Axis2Placement3D and Project |
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43 | // |
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44 | // These functions are utilized into CurveTest.cc |
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45 | // |
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46 | |
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47 | |
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48 | #include "G4Axis2Placement3D.hh" |
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49 | #include "G4Curve.hh" |
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50 | #include "G4Line.hh" |
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51 | #include "G4CircularCurve.hh" |
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52 | #include "G4Ellipse.hh" |
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53 | #include "G4Parabola.hh" |
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54 | #include "G4Hyperbola.hh" |
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55 | #include "G4Transform3D.hh" |
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56 | #include "CLHEP/Random/RandFlat.h" |
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57 | |
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58 | |
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59 | |
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60 | // Printing debug info |
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61 | std::ostream& operator<<(std::ostream& os, const G4Axis2Placement3D& p) |
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62 | { |
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63 | os << "(" << p.GetLocation() |
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64 | << ", " << p.GetAxis() |
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65 | << ", " << p.GetRefDirection() << ")"; |
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66 | return os; |
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67 | } |
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68 | |
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69 | |
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70 | std::ostream& operator<<(std::ostream& os, const G4BoundingBox3D& b) |
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71 | { |
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72 | os << "(" << b.GetBoxMin() |
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73 | << ", " << b.GetBoxMax() << ")"; |
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74 | return os; |
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75 | } |
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76 | |
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77 | |
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78 | // Get a random parametric point |
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79 | G4double GetRandomP(G4Curve* c) |
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80 | { |
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81 | G4double pMax = c->GetPMax(); |
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82 | G4double min = c->GetPStart(); |
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83 | G4double max = c->GetPEnd(); |
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84 | |
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85 | if ( max<=min && pMax>0) |
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86 | max+= pMax; |
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87 | |
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88 | G4double r= CLHEP::RandFlat::shoot(min, max); |
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89 | |
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90 | if (pMax>0 && r>=pMax) |
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91 | r-= pMax; |
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92 | |
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93 | return r; |
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94 | } |
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95 | |
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96 | |
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97 | // Test basic functionality common to curves |
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98 | void TestCurve(G4Curve* c) |
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99 | { |
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100 | // bounds |
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101 | G4cout << " GetStartPoint : " << c->GetStart() << G4endl; |
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102 | G4cout << " GetEndPoint : " << c->GetEnd() << G4endl; |
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103 | G4cout << " GetPStartPoint : " << c->GetPStart() << G4endl; |
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104 | G4cout << " GetPEndPoint : " << c->GetPEnd() << G4endl; |
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105 | G4cout << " GetPMax : " << c->GetPMax() << G4endl; |
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106 | G4cout << " u -> GetPoint() -> p -> GetPPoint() -> u2" << G4endl; |
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107 | |
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108 | G4int i; |
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109 | for (i=0; i<1000; i++) |
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110 | { |
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111 | G4double u = GetRandomP(c); |
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112 | G4Point3D p = c->GetPoint(u); |
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113 | G4double u2 = c->GetPPoint(p); |
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114 | G4double pMax = c->GetPMax(); |
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115 | |
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116 | if (pMax>0) |
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117 | u2-= std::floor((u2-u)/pMax+0.5)*pMax; |
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118 | |
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119 | G4bool error= std::abs(u-u2) > 0.0001; |
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120 | |
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121 | if (i<5 || error) |
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122 | { |
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123 | G4cout << " u : " << u << " p: " << p |
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124 | << " u2: " << u2 << G4endl; |
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125 | |
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126 | if (error) |
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127 | { |
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128 | G4cout << " Error: u != u2 !" << G4endl; |
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129 | exit(EXIT_FAILURE); |
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130 | } |
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131 | } |
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132 | |
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133 | if (!c->IsPOn(u)) |
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134 | { |
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135 | G4cout << " Error: u is not on the curve!" << G4endl; |
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136 | exit(EXIT_FAILURE); |
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137 | } |
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138 | } |
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139 | |
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140 | const G4BoundingBox3D& bBox= *(c->BBox()); |
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141 | G4cout << " BBox: " << bBox << G4endl; |
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142 | G4BoundingBox3D bBox2(c->GetStart(), c->GetEnd()); |
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143 | |
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144 | for (i=0; i<1000; i++) |
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145 | bBox2.Extend(c->GetPoint(GetRandomP(c))); |
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146 | |
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147 | G4cout << " BBox from random points: " << bBox2 << G4endl; |
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148 | G4cout << " empty space around it when put in BBox:" << G4endl; |
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149 | |
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150 | G4Vector3D max= bBox.GetBoxMax()-bBox2.GetBoxMax(); |
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151 | G4Vector3D min= bBox2.GetBoxMin()-bBox.GetBoxMin(); |
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152 | |
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153 | G4cout << " min x: " << min.x() << " max x: " << max.x() |
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154 | << "\n min y: " << min.y() << " max y: " << max.y() |
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155 | << "\n min z: " << min.z() << " max z: " << max.z() << G4endl; |
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156 | } |
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157 | |
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158 | |
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159 | // Test G4Axis2Placement3D |
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160 | void TestPlacement(G4Axis2Placement3D* p) |
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161 | { |
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162 | G4cout << "G4Axis2Placement3D " << p->GetLocation() << " " << p->GetAxis() |
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163 | << " " << p->GetRefDirection() << G4endl; |
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164 | |
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165 | G4cout << " coordinate vectors:" << G4endl; |
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166 | |
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167 | G4cout << " p[1]: " << p->GetPX() |
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168 | << "\n p[2]: " << p->GetPY() |
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169 | << "\n p[3]: " << p->GetPZ() << G4endl; |
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170 | |
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171 | G4cout << " p[1].p[2]: " << p->GetPX()*p->GetPY() |
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172 | << "\n p[3]-(p[1]xp[2]): "<< p->GetPZ()-(p->GetPX().cross(p->GetPY())) |
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173 | << G4endl; |
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174 | |
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175 | G4cout << " coordinate vectors computed from the transformation:" << G4endl; |
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176 | |
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177 | G4cout << " p[1]: " << p->GetFromPlacementCoordinates()*G4Point3D(1, 0, 0) |
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178 | << "\n p[2]: " << p->GetFromPlacementCoordinates()*G4Point3D(0, 1, 0) |
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179 | << "\n p[3]: " << p->GetFromPlacementCoordinates()*G4Point3D(0, 0, 1) |
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180 | << G4endl; |
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181 | |
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182 | G4cout << " coordinate vectors in placement coordinate system:"; |
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183 | |
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184 | G4cout << "\n " << p->GetToPlacementCoordinates()*p->GetPX() |
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185 | << "\n " << p->GetToPlacementCoordinates()*p->GetPY() |
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186 | << "\n " << p->GetToPlacementCoordinates()*p->GetPZ() << G4endl; |
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187 | } |
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188 | |
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189 | |
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190 | // Test the project function |
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191 | void TestProject(G4Curve* c, const G4Transform3D& tr) |
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192 | { |
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193 | G4int i; |
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194 | G4Curve* projC = c->Project(tr); |
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195 | |
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196 | for (i=0; i<1000; i++) |
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197 | { |
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198 | G4double u = GetRandomP(c); |
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199 | G4Point3D p1 = tr*c->GetPoint(u); |
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200 | p1.setZ(0); |
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201 | |
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202 | G4Point3D p2 = projC->GetPoint(u); |
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203 | G4bool error = false; |
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204 | |
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205 | if (std::abs(p2.z())>0.0001) |
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206 | { |
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207 | error= true; |
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208 | G4cout << "Error: the projection is not in the xy plane!" << G4endl; |
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209 | } |
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210 | |
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211 | if ((p1-p2).mag()>0.001) |
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212 | { |
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213 | error= true; |
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214 | G4cout << "Error: the two projected points should be the same!" << G4endl; |
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215 | } |
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216 | |
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217 | if (error) |
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218 | { |
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219 | G4cout << "u: " << u << G4endl; |
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220 | |
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221 | G4cout << "point on original curve:\n" << c->GetPoint(u) |
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222 | << "\n projected: " << tr*c->GetPoint(u) << G4endl; |
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223 | |
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224 | G4cout << "point on projected curve: " << projC->GetPoint(u) << G4endl; |
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225 | |
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226 | u= -u; |
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227 | G4cout << "u: " << u << G4endl; |
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228 | |
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229 | G4cout << "point on original curve:\n" << c->GetPoint(u) |
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230 | << "\n projected: " << tr*c->GetPoint(u) << G4endl; |
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231 | |
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232 | G4cout << "point on projected curve:\n" << projC->GetPoint(u) << G4endl; |
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233 | |
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234 | u= -u; u+= pi; |
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235 | G4cout << "u: " << u << G4endl; |
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236 | |
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237 | G4cout << "point on original curve:\n" << c->GetPoint(u) |
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238 | << "\n projected: " << tr*c->GetPoint(u) << G4endl; |
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239 | |
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240 | G4cout << "\npoint on projected curve: " << projC->GetPoint(u) << G4endl; |
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241 | |
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242 | u= -u; |
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243 | G4cout << "u: " << u << G4endl; |
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244 | |
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245 | G4cout << "point on original curve:\n" << c->GetPoint(u) |
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246 | << "\n projected: " << tr*c->GetPoint(u) << G4endl; |
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247 | |
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248 | G4cout << "point on projected curve: " << projC->GetPoint(u) << G4endl; |
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249 | |
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250 | exit(EXIT_FAILURE); |
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251 | } |
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252 | } |
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253 | } |
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