1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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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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18 | // * This code implementation is the result of the scientific and * |
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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: G4PartialPhantomParameterisation.cc,v 1.3 2010/12/15 07:39:00 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
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29 | // |
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30 | // |
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31 | // class G4PartialPhantomParameterisation implementation |
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32 | // |
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33 | // May 2007 Pedro Arce (CIEMAT), first version |
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34 | // |
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35 | // -------------------------------------------------------------------- |
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36 | |
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37 | #include "G4PartialPhantomParameterisation.hh" |
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38 | |
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39 | #include "globals.hh" |
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40 | #include "G4Material.hh" |
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41 | #include "G4VSolid.hh" |
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42 | #include "G4VPhysicalVolume.hh" |
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43 | #include "G4LogicalVolume.hh" |
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44 | #include "G4VVolumeMaterialScanner.hh" |
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45 | #include "G4GeometryTolerance.hh" |
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46 | |
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47 | #include <list> |
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48 | |
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49 | //------------------------------------------------------------------ |
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50 | G4PartialPhantomParameterisation::G4PartialPhantomParameterisation() |
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51 | : G4PhantomParameterisation() |
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52 | { |
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53 | } |
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54 | |
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55 | |
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56 | //------------------------------------------------------------------ |
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57 | G4PartialPhantomParameterisation::~G4PartialPhantomParameterisation() |
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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 | void G4PartialPhantomParameterisation:: |
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63 | ComputeTransformation(const G4int copyNo, G4VPhysicalVolume *physVol ) const |
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64 | { |
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65 | // Voxels cannot be rotated, return translation |
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66 | // |
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67 | G4ThreeVector trans = GetTranslation( copyNo ); |
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68 | physVol->SetTranslation( trans ); |
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69 | } |
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70 | |
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71 | |
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72 | //------------------------------------------------------------------ |
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73 | G4ThreeVector G4PartialPhantomParameterisation:: |
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74 | GetTranslation(const G4int copyNo ) const |
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75 | { |
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76 | CheckCopyNo( copyNo ); |
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77 | |
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78 | size_t nx; |
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79 | size_t ny; |
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80 | size_t nz; |
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81 | ComputeVoxelIndices( copyNo, nx, ny, nz ); |
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82 | |
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83 | G4ThreeVector trans( (2*nx+1)*fVoxelHalfX - fContainerWallX, |
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84 | (2*ny+1)*fVoxelHalfY - fContainerWallY, |
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85 | (2*nz+1)*fVoxelHalfZ - fContainerWallZ); |
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86 | return trans; |
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87 | } |
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88 | |
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89 | |
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90 | //------------------------------------------------------------------ |
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91 | G4Material* G4PartialPhantomParameterisation:: |
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92 | ComputeMaterial(const G4int copyNo, G4VPhysicalVolume *, const G4VTouchable *) |
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93 | { |
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94 | CheckCopyNo( copyNo ); |
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95 | size_t matIndex = GetMaterialIndex(copyNo); |
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96 | |
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97 | return fMaterials[ matIndex ]; |
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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 | size_t G4PartialPhantomParameterisation:: |
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103 | GetMaterialIndex( size_t copyNo ) const |
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104 | { |
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105 | CheckCopyNo( copyNo ); |
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106 | |
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107 | if( !fMaterialIndices ) { return 0; } |
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108 | |
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109 | return *(fMaterialIndices+copyNo); |
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110 | } |
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111 | |
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112 | |
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113 | //------------------------------------------------------------------ |
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114 | size_t G4PartialPhantomParameterisation:: |
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115 | GetMaterialIndex( size_t nx, size_t ny, size_t nz ) const |
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116 | { |
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117 | size_t copyNo = nx + fNoVoxelX*ny + fNoVoxelXY*nz; |
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118 | return GetMaterialIndex( copyNo ); |
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119 | } |
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120 | |
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121 | |
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122 | //------------------------------------------------------------------ |
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123 | G4Material* G4PartialPhantomParameterisation:: |
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124 | GetMaterial( size_t nx, size_t ny, size_t nz) const |
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125 | { |
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126 | return fMaterials[GetMaterialIndex(nx,ny,nz)]; |
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127 | } |
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128 | |
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129 | |
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130 | //------------------------------------------------------------------ |
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131 | G4Material* G4PartialPhantomParameterisation:: |
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132 | GetMaterial( size_t copyNo ) const |
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133 | { |
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134 | return fMaterials[GetMaterialIndex(copyNo)]; |
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135 | } |
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136 | |
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137 | |
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138 | //------------------------------------------------------------------ |
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139 | void G4PartialPhantomParameterisation:: |
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140 | ComputeVoxelIndices(const G4int copyNo, size_t& nx, |
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141 | size_t& ny, size_t& nz ) const |
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142 | { |
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143 | CheckCopyNo( copyNo ); |
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144 | |
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145 | std::multimap<G4int,G4int>::const_iterator ite = |
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146 | fFilledIDs.lower_bound(size_t(copyNo)); |
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147 | G4int dist = std::distance( fFilledIDs.begin(), ite ); |
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148 | nz = size_t(dist/fNoVoxelY); |
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149 | ny = size_t( dist%fNoVoxelY ); |
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150 | |
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151 | G4int ifmin = (*ite).second; |
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152 | G4int nvoxXprev; |
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153 | if( dist != 0 ) { |
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154 | ite--; |
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155 | nvoxXprev = (*ite).first; |
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156 | } else { |
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157 | nvoxXprev = -1; |
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158 | } |
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159 | |
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160 | nx = ifmin+copyNo-nvoxXprev-1; |
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161 | } |
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162 | |
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163 | |
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164 | //------------------------------------------------------------------ |
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165 | G4int G4PartialPhantomParameterisation:: |
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166 | GetReplicaNo( const G4ThreeVector& localPoint, const G4ThreeVector& localDir ) |
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167 | { |
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168 | // Check the voxel numbers corresponding to localPoint |
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169 | // When a particle is on a surface, it may be between -kCarTolerance and |
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170 | // +kCartolerance. By a simple distance as: |
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171 | // G4int nx = G4int( (localPoint.x()+)/fVoxelHalfX/2.); |
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172 | // those between -kCartolerance and 0 will be placed on voxel N-1 and those |
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173 | // between 0 and kCarTolerance on voxel N. |
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174 | // To avoid precision problems place the tracks that are on the surface on |
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175 | // voxel N-1 if they have negative direction and on voxel N if they have |
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176 | // positive direction. |
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177 | // Add +kCarTolerance so that they are first placed on voxel N, and then |
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178 | // if the direction is negative substract 1 |
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179 | |
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180 | G4double fx = (localPoint.x()+fContainerWallX+kCarTolerance)/(fVoxelHalfX*2.); |
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181 | G4int nx = G4int(fx); |
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182 | |
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183 | G4double fy = (localPoint.y()+fContainerWallY+kCarTolerance)/(fVoxelHalfY*2.); |
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184 | G4int ny = G4int(fy); |
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185 | |
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186 | G4double fz = (localPoint.z()+fContainerWallZ+kCarTolerance)/(fVoxelHalfZ*2.); |
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187 | G4int nz = G4int(fz); |
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188 | |
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189 | // If it is on the surface side, check the direction: if direction is |
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190 | // negative place it on the previous voxel (if direction is positive it is |
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191 | // already in the next voxel...). |
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192 | // Correct also cases where n = -1 or n = fNoVoxel. It is always traced to be |
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193 | // due to multiple scattering: track is entering a voxel but multiple |
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194 | // scattering changes the angle towards outside |
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195 | // |
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196 | if( fx - nx < kCarTolerance/fVoxelHalfX ) |
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197 | { |
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198 | if( localDir.x() < 0 ) |
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199 | { |
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200 | if( nx != 0 ) |
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201 | { |
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202 | nx -= 1; |
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203 | } |
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204 | } |
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205 | else |
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206 | { |
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207 | if( nx == G4int(fNoVoxelX) ) |
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208 | { |
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209 | nx -= 1; |
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210 | } |
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211 | } |
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212 | } |
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213 | if( fy - ny < kCarTolerance/fVoxelHalfY ) |
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214 | { |
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215 | if( localDir.y() < 0 ) |
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216 | { |
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217 | if( ny != 0 ) |
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218 | { |
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219 | ny -= 1; |
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220 | } |
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221 | } |
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222 | else |
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223 | { |
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224 | if( ny == G4int(fNoVoxelY) ) |
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225 | { |
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226 | ny -= 1; |
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227 | } |
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228 | } |
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229 | } |
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230 | if( fz - nz < kCarTolerance/fVoxelHalfZ ) |
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231 | { |
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232 | if( localDir.z() < 0 ) |
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233 | { |
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234 | if( nz != 0 ) |
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235 | { |
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236 | nz -= 1; |
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237 | } |
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238 | } |
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239 | else |
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240 | { |
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241 | if( nz == G4int(fNoVoxelZ) ) |
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242 | { |
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243 | nz -= 1; |
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244 | } |
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245 | } |
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246 | } |
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247 | |
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248 | // Check if there are still errors |
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249 | // |
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250 | G4bool isOK = true; |
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251 | if( nx < 0 ) |
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252 | { |
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253 | nx = 0; |
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254 | isOK = false; |
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255 | } |
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256 | else if( nx >= G4int(fNoVoxelX) ) |
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257 | { |
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258 | nx = fNoVoxelX-1; |
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259 | isOK = false; |
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260 | } |
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261 | if( ny < 0 ) |
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262 | { |
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263 | ny = 0; |
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264 | isOK = false; |
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265 | } |
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266 | else if( ny >= G4int(fNoVoxelY) ) |
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267 | { |
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268 | ny = fNoVoxelY-1; |
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269 | isOK = false; |
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270 | } |
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271 | if( nz < 0 ) |
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272 | { |
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273 | nz = 0; |
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274 | isOK = false; |
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275 | } |
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276 | else if( nz >= G4int(fNoVoxelZ) ) |
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277 | { |
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278 | nz = fNoVoxelZ-1; |
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279 | isOK = false; |
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280 | } |
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281 | if( !isOK ) |
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282 | { |
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283 | G4cerr << "WARNING - G4PartialPhantomParameterisation::GetReplicaNo()" |
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284 | << G4endl |
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285 | << " LocalPoint: " << localPoint << G4endl |
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286 | << " LocalDir: " << localDir << G4endl |
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287 | << " Voxel container size: " << fContainerWallX |
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288 | << " " << fContainerWallY << " " << fContainerWallZ << G4endl |
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289 | << " LocalPoint - wall: " |
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290 | << localPoint.x()-fContainerWallX << " " |
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291 | << localPoint.y()-fContainerWallY << " " |
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292 | << localPoint.z()-fContainerWallZ << G4endl; |
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293 | G4Exception("G4PartialPhantomParameterisation::GetReplicaNo()", |
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294 | "Wrong-copy-number", JustWarning, |
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295 | "Corrected the copy number! It was negative or too big"); |
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296 | } |
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297 | |
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298 | G4int nyz = nz*fNoVoxelY+ny; |
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299 | std::multimap<G4int,G4int>::iterator ite = fFilledIDs.begin(); |
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300 | /* |
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301 | for( ite = fFilledIDs.begin(); ite != fFilledIDs.end(); ite++ ) |
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302 | { |
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303 | G4cout << " G4PartialPhantomParameterisation::GetReplicaNo filled " |
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304 | << (*ite).first << " , " << (*ite).second << std::endl; |
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305 | } |
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306 | */ |
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307 | ite = fFilledIDs.begin(); |
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308 | |
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309 | advance(ite,nyz); |
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310 | std::multimap<G4int,G4int>::iterator iteant = ite; iteant--; |
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311 | G4int copyNo = (*iteant).first + 1 + ( nx - (*ite).second ); |
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312 | /* |
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313 | G4cout << " G4PartialPhantomParameterisation::GetReplicaNo getting copyNo " |
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314 | << copyNo << " nyz " << nyz << " (*iteant).first " |
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315 | << (*iteant).first << " (*ite).second " << (*ite).second << G4endl; |
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316 | |
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317 | G4cout << " G4PartialPhantomParameterisation::GetReplicaNo " << copyNo |
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318 | << " nx " << nx << " ny " << ny << " nz " << nz |
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319 | << " localPoint " << localPoint << " localDir " << localDir << G4endl; |
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320 | */ |
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321 | return copyNo; |
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322 | } |
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323 | |
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324 | |
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325 | //------------------------------------------------------------------ |
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326 | void G4PartialPhantomParameterisation::CheckCopyNo( const G4int copyNo ) const |
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327 | { |
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328 | if( copyNo < 0 || copyNo >= G4int(fNoVoxel) ) |
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329 | { |
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330 | G4cerr << "ERROR - G4PartialPhantomParameterisation::CheckCopyNo()" |
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331 | << G4endl |
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332 | << " Copy number: " << copyNo << G4endl |
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333 | << " Total number of voxels: " << fNoVoxel << G4endl; |
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334 | G4Exception("G4PartialPhantomParameterisation::CheckCopyNo()", |
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335 | "Wrong-copy-number", FatalErrorInArgument, |
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336 | "Copy number is negative or too big!"); |
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337 | } |
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338 | } |
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339 | |
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340 | |
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341 | //------------------------------------------------------------------ |
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342 | void G4PartialPhantomParameterisation::BuildContainerWalls() |
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343 | { |
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344 | fContainerWallX = fNoVoxelX * fVoxelHalfX; |
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345 | fContainerWallY = fNoVoxelY * fVoxelHalfY; |
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346 | fContainerWallZ = fNoVoxelZ * fVoxelHalfZ; |
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347 | } |
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