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: G4ErrorPlaneSurfaceTarget.cc,v 1.2 2007/06/19 11:28:39 gcosmo Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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29 | // |
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30 | // |
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31 | // -------------------------------------------------------------------- |
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32 | // GEANT 4 class implementation file |
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33 | // -------------------------------------------------------------------- |
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34 | |
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35 | #include "G4ErrorPlaneSurfaceTarget.hh" |
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36 | |
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37 | #ifdef G4VERBOSE |
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38 | #include "G4ErrorPropagatorData.hh" //for verbosity checking |
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39 | #endif |
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40 | |
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41 | #include "G4Point3D.hh" |
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42 | #include "G4ThreeVector.hh" |
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43 | |
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44 | //--------------------------------------------------------------------- |
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45 | |
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46 | G4ErrorPlaneSurfaceTarget:: |
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47 | G4ErrorPlaneSurfaceTarget(G4double a, G4double b, G4double c, G4double d) |
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48 | : G4Plane3D( a, b, c, d ) |
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49 | { |
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50 | theType = G4ErrorTarget_PlaneSurface; |
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51 | |
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52 | #ifdef G4VERBOSE |
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53 | if(G4ErrorPropagatorData::verbose() >= 2 ) |
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54 | { |
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55 | Dump( " $$$ creating G4ErrorPlaneSurfaceTarget from parameters"); |
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56 | } |
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57 | #endif |
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58 | } |
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59 | |
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60 | //--------------------------------------------------------------------- |
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61 | |
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62 | G4ErrorPlaneSurfaceTarget:: |
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63 | G4ErrorPlaneSurfaceTarget(const G4Normal3D &n, const G4Point3D &p) |
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64 | : G4Plane3D( n, p ) |
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65 | { |
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66 | theType = G4ErrorTarget_PlaneSurface; |
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67 | |
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68 | #ifdef G4VERBOSE |
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69 | if(G4ErrorPropagatorData::verbose() >= 2 ) |
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70 | { |
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71 | Dump( " $$$ creating G4ErrorPlaneSurfaceTarget from point and normal"); |
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72 | } |
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73 | #endif |
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74 | } |
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75 | |
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76 | //--------------------------------------------------------------------- |
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77 | |
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78 | G4ErrorPlaneSurfaceTarget:: |
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79 | G4ErrorPlaneSurfaceTarget(const G4Point3D &p1, |
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80 | const G4Point3D &p2, |
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81 | const G4Point3D &p3) |
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82 | : G4Plane3D( p1, p2, p3 ) |
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83 | { |
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84 | theType = G4ErrorTarget_PlaneSurface; |
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85 | |
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86 | #ifdef G4VERBOSE |
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87 | if(G4ErrorPropagatorData::verbose() >= 2 ) |
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88 | { |
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89 | Dump( " $$$ creating G4ErrorPlaneSurfaceTarget from three points"); |
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90 | } |
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91 | #endif |
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92 | } |
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93 | |
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94 | //--------------------------------------------------------------------- |
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95 | |
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96 | G4ErrorPlaneSurfaceTarget::~G4ErrorPlaneSurfaceTarget() |
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97 | { |
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98 | } |
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99 | |
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100 | //--------------------------------------------------------------------- |
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101 | |
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102 | G4ThreeVector G4ErrorPlaneSurfaceTarget:: |
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103 | Intersect( const G4ThreeVector& pt, const G4ThreeVector& dir ) const |
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104 | { |
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105 | G4double lam = GetDistanceFromPoint( pt, dir ); |
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106 | G4Point3D inters = pt + lam * dir; |
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107 | |
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108 | #ifdef G4VERBOSE |
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109 | if(G4ErrorPropagatorData::verbose() >= 4 ) |
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110 | { |
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111 | G4cerr << " $$$ creating G4ErrorPlaneSurfaceTarget::Intersect " |
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112 | << inters << G4endl; |
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113 | } |
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114 | #endif |
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115 | |
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116 | return inters; |
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117 | } |
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118 | |
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119 | //--------------------------------------------------------------------- |
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120 | |
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121 | G4double G4ErrorPlaneSurfaceTarget:: |
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122 | GetDistanceFromPoint( const G4ThreeVector& pt, const G4ThreeVector& dir ) const |
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123 | { |
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124 | if( std::fabs( dir.mag() -1. ) > 1.E-6 ) |
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125 | { |
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126 | G4cerr << "WARNING - G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint()" |
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127 | << G4endl |
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128 | << " Direction is not a unit vector: " << dir << " !" |
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129 | << G4endl; |
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130 | } |
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131 | G4double dist = -(a_ * pt.x() + b_ * pt.y() + c_ * pt.z() + d_) |
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132 | / (a_ * dir.x() + b_ * dir.y() + c_ * dir.z() ); |
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133 | |
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134 | #ifdef G4VERBOSE |
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135 | if(G4ErrorPropagatorData::verbose() >= 3 ) |
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136 | { |
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137 | G4cout << " G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint()" << G4endl |
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138 | << " Point: " << pt << ", Direction: " << dir << G4endl |
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139 | << " Distance: " << dist << G4endl; |
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140 | } |
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141 | #endif |
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142 | |
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143 | return dist; |
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144 | } |
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145 | |
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146 | //--------------------------------------------------------------------- |
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147 | |
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148 | G4double G4ErrorPlaneSurfaceTarget:: |
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149 | GetDistanceFromPoint( const G4ThreeVector& pt ) const |
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150 | { |
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151 | G4ThreeVector vec = point() - pt; |
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152 | G4double alpha = std::acos( vec * normal() / vec.mag() / normal().mag() ); |
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153 | G4double dist = std::fabs(vec.mag() * std::cos( alpha )); |
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154 | |
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155 | #ifdef G4VERBOSE |
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156 | if(G4ErrorPropagatorData::verbose() >= 3 ) |
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157 | { |
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158 | G4cout << " G4ErrorPlaneSurfaceTarget::GetDistanceFromPoint()" << G4endl |
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159 | << " Point: " << pt << G4endl |
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160 | << " Distance: " << dist << G4endl; |
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161 | } |
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162 | #endif |
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163 | |
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164 | return dist; |
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165 | } |
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166 | |
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167 | //--------------------------------------------------------------------- |
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168 | |
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169 | G4Plane3D G4ErrorPlaneSurfaceTarget:: |
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170 | GetTangentPlane( const G4ThreeVector& ) const |
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171 | { |
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172 | return *this; |
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173 | } |
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174 | |
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175 | |
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176 | void G4ErrorPlaneSurfaceTarget::Dump( const G4String& msg ) const |
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177 | { |
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178 | G4cout << msg << " point = " << point() |
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179 | << " normal = " << normal() << G4endl; |
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180 | } |
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