1 | // ----------------------------------------------------------------------- |
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2 | // Object3D.cc: Member functions for Object3D class. |
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3 | // ----------------------------------------------------------------------- |
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4 | // Copyright (C) 2006, Matthew Whiting, ATNF |
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5 | // |
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6 | // This program is free software; you can redistribute it and/or modify it |
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7 | // under the terms of the GNU General Public License as published by the |
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8 | // Free Software Foundation; either version 2 of the License, or (at your |
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9 | // option) any later version. |
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10 | // |
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11 | // Duchamp is distributed in the hope that it will be useful, but WITHOUT |
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12 | // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 | // for more details. |
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15 | // |
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16 | // You should have received a copy of the GNU General Public License |
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17 | // along with Duchamp; if not, write to the Free Software Foundation, |
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18 | // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
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19 | // |
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20 | // Correspondence concerning Duchamp may be directed to: |
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21 | // Internet email: Matthew.Whiting [at] atnf.csiro.au |
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22 | // Postal address: Dr. Matthew Whiting |
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23 | // Australia Telescope National Facility, CSIRO |
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24 | // PO Box 76 |
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25 | // Epping NSW 1710 |
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26 | // AUSTRALIA |
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27 | // ----------------------------------------------------------------------- |
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28 | #include <iostream> |
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29 | #include <sstream> |
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30 | #include <duchamp/PixelMap/Voxel.hh> |
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31 | #include <duchamp/PixelMap/Scan.hh> |
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32 | #include <duchamp/PixelMap/Object2D.hh> |
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33 | #include <duchamp/PixelMap/Object3D.hh> |
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34 | #include <vector> |
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35 | #include <map> |
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36 | |
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37 | namespace PixelInfo |
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38 | { |
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39 | Object3D::Object3D() |
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40 | { |
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41 | this->numVox=0; |
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42 | this->xSum = 0; |
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43 | this->ySum = 0; |
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44 | this->zSum = 0; |
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45 | this->xmin = this->xmax = this->ymin = this->ymax = this->zmin = this->zmax = -1; |
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46 | } |
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47 | //-------------------------------------------- |
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48 | |
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49 | Object3D::Object3D(const Object3D& o) |
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50 | { |
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51 | operator=(o); |
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52 | } |
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53 | //-------------------------------------------- |
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54 | |
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55 | Object3D& Object3D::operator= (const Object3D& o) |
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56 | { |
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57 | if(this == &o) return *this; |
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58 | this->chanlist = o.chanlist; |
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59 | this->numVox = o.numVox; |
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60 | this->xSum = o.xSum; |
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61 | this->ySum = o.ySum; |
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62 | this->zSum = o.zSum; |
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63 | this->xmin = o.xmin; |
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64 | this->ymin = o.ymin; |
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65 | this->zmin = o.zmin; |
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66 | this->xmax = o.xmax; |
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67 | this->ymax = o.ymax; |
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68 | this->zmax = o.zmax; |
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69 | return *this; |
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70 | } |
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71 | //-------------------------------------------- |
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72 | |
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73 | Object3D operator+ (Object3D lhs, Object3D rhs) |
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74 | { |
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75 | Object3D output = lhs; |
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76 | for(std::map<long, Object2D>::iterator it = rhs.chanlist.begin(); it!=rhs.chanlist.end();it++) |
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77 | output.addChannel(it->first, it->second); |
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78 | // output.addChannel(*it); |
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79 | return output; |
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80 | } |
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81 | |
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82 | //-------------------------------------------- |
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83 | float Object3D::getXaverage() |
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84 | { |
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85 | if(numVox>0) return xSum/float(numVox); |
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86 | else return 0.; |
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87 | } |
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88 | //-------------------------------------------- |
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89 | |
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90 | float Object3D::getYaverage() |
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91 | { |
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92 | if(numVox>0) return ySum/float(numVox); |
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93 | else return 0.; |
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94 | } |
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95 | //-------------------------------------------- |
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96 | |
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97 | float Object3D::getZaverage() |
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98 | { |
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99 | if(numVox>0) return zSum/float(numVox); |
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100 | else return 0.; |
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101 | } |
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102 | //-------------------------------------------- |
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103 | |
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104 | bool Object3D::isInObject(long x, long y, long z) |
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105 | { |
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106 | std::map<long,Object2D>::iterator it=this->chanlist.begin(); |
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107 | while(it!=this->chanlist.end() && it->first!=z) it++; |
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108 | |
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109 | if(it==this->chanlist.end()) return false; |
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110 | else return it->second.isInObject(x,y); |
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111 | } |
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112 | //-------------------------------------------- |
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113 | |
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114 | void Object3D::addPixel(long x, long y, long z) |
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115 | { |
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116 | |
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117 | std::map<long,Object2D>::iterator it=this->chanlist.begin(); |
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118 | while(it!=this->chanlist.end() && it->first!=z) it++; |
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119 | |
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120 | if(it==this->chanlist.end()){ //new channel |
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121 | Object2D obj; |
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122 | obj.addPixel(x,y); |
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123 | chanlist.insert( std::pair<int,Object2D>(z,obj) ); |
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124 | // update the centres, min & max, as well as the number of voxels |
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125 | if(this->numVox==0){ |
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126 | this->xSum = this->xmin = this->xmax = x; |
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127 | this->ySum = this->ymin = this->ymax = y; |
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128 | this->zSum = this->zmin = this->zmax = z; |
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129 | } |
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130 | else{ |
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131 | this->xSum += x; |
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132 | this->ySum += y; |
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133 | this->zSum += z; |
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134 | if(x<this->xmin) this->xmin = x; |
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135 | if(x>this->xmax) this->xmax = x; |
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136 | if(y<this->ymin) this->ymin = y; |
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137 | if(y>this->ymax) this->ymax = y; |
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138 | // since we've ordered the maplist, the min & max z fall out naturally |
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139 | this->zmin = this->chanlist.begin()->first; |
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140 | this->zmax = this->chanlist.rbegin()->first; |
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141 | } |
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142 | this->numVox++; |
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143 | } |
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144 | else{ // existing channel |
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145 | // This method deals with the case of a new pixel being added AND |
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146 | // with the new pixel already existing in the Object2D |
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147 | |
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148 | // Remove that channel's information from the Object's information |
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149 | this->xSum -= it->second.xSum; |
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150 | this->ySum -= it->second.ySum; |
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151 | this->zSum -= z*it->second.numPix; |
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152 | this->numVox -= it->second.numPix; |
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153 | |
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154 | // Add the pixel |
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155 | it->second.addPixel(x,y); |
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156 | |
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157 | this->numVox += it->second.numPix; |
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158 | this->xSum += it->second.xSum; |
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159 | this->ySum += it->second.ySum; |
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160 | this->zSum += z*it->second.numPix; |
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161 | if(x<this->xmin) this->xmin = x; |
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162 | if(x>this->xmax) this->xmax = x; |
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163 | if(y<this->ymin) this->ymin = y; |
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164 | if(y>this->ymax) this->ymax = y; |
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165 | // don't need to do anything to zmin/zmax -- the z-value is |
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166 | // already in the list |
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167 | } |
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168 | |
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169 | } |
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170 | //-------------------------------------------- |
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171 | |
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172 | void Object3D::addScan(Scan s, long z) |
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173 | { |
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174 | long y=s.getY(); |
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175 | for(int x=s.getX(); x<=s.getXmax(); x++) |
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176 | this->addPixel(x,y,z); |
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177 | } |
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178 | |
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179 | //-------------------------------------------- |
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180 | |
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181 | // void Object3D::addChannel(const std::pair<long, Object2D> *chan) |
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182 | // { |
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183 | // long z = chan->first; |
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184 | // Object2D |
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185 | // } |
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186 | |
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187 | |
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188 | void Object3D::addChannel(const long &z, Object2D &obj) |
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189 | { |
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190 | |
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191 | std::map<long,Object2D>::iterator it=this->chanlist.begin(); |
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192 | while(it!=this->chanlist.end() && it->first!=z) it++; |
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193 | |
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194 | if(it == this->chanlist.end()){ // channel z is not already in object, so add it. |
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195 | this->chanlist.insert(std::pair<long,Object2D>(z,obj)); |
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196 | if(this->numVox == 0){ // if there are no other pixels, so initialise mins,maxs,sums |
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197 | this->xmin = obj.xmin; |
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198 | this->xmax = obj.xmax; |
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199 | this->ymin = obj.ymin; |
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200 | this->ymax = obj.ymax; |
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201 | this->zmin = this->zmax = z; |
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202 | this->xSum = obj.xSum; |
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203 | this->ySum = obj.ySum; |
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204 | this->zSum = z * obj.getSize(); |
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205 | } |
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206 | else{ // there are other pixels in other channels, so update mins, maxs, sums |
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207 | if(obj.xmin<this->xmin) this->xmin = obj.xmin; |
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208 | if(obj.xmax>this->xmax) this->xmax = obj.xmax; |
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209 | if(obj.ymin<this->ymin) this->ymin = obj.ymin; |
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210 | if(obj.ymax>this->ymax) this->ymax = obj.ymax; |
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211 | if(z<this->zmin) this->zmin = z; |
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212 | if(z>this->zmax) this->zmax = z; |
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213 | this->xSum += obj.xSum; |
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214 | this->ySum += obj.ySum; |
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215 | this->zSum += z * obj.getSize(); |
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216 | } |
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217 | this->numVox += obj.getSize(); |
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218 | } |
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219 | else{ // channel is already present, so need to combine objects. |
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220 | this->xSum -= it->second.xSum; |
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221 | this->ySum -= it->second.ySum; |
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222 | this->zSum -= z*it->second.getSize(); |
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223 | this->numVox -= it->second.getSize(); |
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224 | it->second = it->second + obj; |
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225 | this->xSum += it->second.xSum; |
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226 | this->ySum += it->second.ySum; |
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227 | this->zSum += z*it->second.getSize(); |
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228 | this->numVox += it->second.getSize(); |
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229 | if(obj.xmin<this->xmin) this->xmin = obj.xmin; |
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230 | if(obj.xmax>this->xmax) this->xmax = obj.xmax; |
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231 | if(obj.ymin<this->ymin) this->ymin = obj.ymin; |
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232 | if(obj.ymax>this->ymax) this->ymax = obj.ymax; |
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233 | } |
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234 | } |
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235 | |
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236 | //-------------------------------------------- |
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237 | |
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238 | unsigned long Object3D::getSpatialSize() |
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239 | { |
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240 | Object2D spatialMap = this->getSpatialMap(); |
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241 | return spatialMap.getSize(); |
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242 | } |
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243 | //-------------------------------------------- |
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244 | |
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245 | Object2D Object3D::getSpatialMap() |
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246 | { |
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247 | Object2D spatialMap; |
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248 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); |
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249 | it!=this->chanlist.end();it++){ |
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250 | spatialMap = spatialMap + it->second; |
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251 | } |
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252 | return spatialMap; |
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253 | } |
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254 | //-------------------------------------------- |
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255 | |
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256 | void Object3D::calcParams() |
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257 | { |
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258 | this->xSum = 0; |
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259 | this->ySum = 0; |
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260 | this->zSum = 0; |
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261 | this->numVox = 0; |
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262 | |
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263 | this->zmin = this->chanlist.begin()->first; |
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264 | this->zmax = this->chanlist.rbegin()->first; |
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265 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); |
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266 | it!=this->chanlist.end();it++){ |
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267 | |
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268 | it->second.calcParams(); |
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269 | |
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270 | if(it==this->chanlist.begin()){ |
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271 | this->xmin = it->second.getXmin(); |
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272 | this->xmax = it->second.getXmax(); |
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273 | this->ymin = it->second.getYmin(); |
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274 | this->ymax = it->second.getYmax(); |
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275 | } |
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276 | else{ |
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277 | if(it->second.xmin<this->xmin) this->xmin = it->second.xmin; |
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278 | if(it->second.xmax>this->xmax) this->xmax = it->second.xmax; |
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279 | if(it->second.ymin<this->ymin) this->ymin = it->second.ymin; |
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280 | if(it->second.ymax>this->ymax) this->ymax = it->second.ymax; |
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281 | } |
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282 | |
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283 | this->xSum += it->second.xSum; |
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284 | this->ySum += it->second.ySum; |
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285 | this->zSum += it->first * it->second.getSize(); |
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286 | this->numVox += it->second.getSize(); |
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287 | |
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288 | } |
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289 | |
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290 | } |
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291 | //------------------------------------------------------ |
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292 | |
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293 | void Object3D::print(std::ostream& theStream) |
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294 | { |
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295 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); |
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296 | it!=this->chanlist.end();it++){ |
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297 | for(std::vector<Scan>::iterator s=it->second.scanlist.begin();s!=it->second.scanlist.end();s++){ |
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298 | theStream << *s << "," << it->first << "\n"; |
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299 | } |
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300 | } |
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301 | theStream << "\n"; |
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302 | } |
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303 | |
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304 | |
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305 | std::ostream& operator<< ( std::ostream& theStream, Object3D& obj) |
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306 | { |
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307 | obj.print(theStream); |
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308 | return theStream; |
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309 | } |
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310 | //-------------------------------------------- |
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311 | |
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312 | std::vector<Voxel> Object3D::getPixelSet() |
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313 | { |
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314 | /// @details Returns a vector of the Voxels in the object. All |
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315 | /// flux values are set to 0. |
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316 | |
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317 | std::vector<Voxel> voxList(this->numVox); |
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318 | long count = 0; |
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319 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); |
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320 | it!=this->chanlist.end();it++){ |
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321 | long z = it->first; |
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322 | for(std::vector<Scan>::iterator s=it->second.scanlist.begin();s!=it->second.scanlist.end();s++){ |
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323 | long y = s->getY(); |
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324 | for(long x=s->getX(); x<=s->getXmax(); x++){ |
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325 | voxList[count].setXYZF(x,y,z,0); |
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326 | count++; |
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327 | } |
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328 | } |
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329 | } |
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330 | return voxList; |
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331 | |
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332 | } |
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333 | |
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334 | //-------------------------------------------------------------------- |
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335 | |
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336 | std::vector<Voxel> Object3D::getPixelSet(float *array, long *dim) |
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337 | { |
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338 | /// @details Returns a vector of Voxels with the flux values for each voxel |
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339 | /// taken from the array provided. No check is made as to whether |
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340 | /// the pixels fall in the array boundaries |
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341 | /// @param array Array of pixel values |
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342 | /// @param dim Array of axis dimensions |
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343 | |
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344 | std::vector<Voxel> voxList(this->numVox); |
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345 | long count = 0; |
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346 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); |
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347 | it!=this->chanlist.end();it++){ |
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348 | long z = it->first; |
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349 | for(std::vector<Scan>::iterator s=it->second.scanlist.begin();s!=it->second.scanlist.end();s++){ |
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350 | long y = s->getY(); |
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351 | for(long x=s->getX(); x<=s->getXmax(); x++){ |
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352 | voxList[count].setXYZF(x,y,z,array[x+dim[0]*y+dim[0]*dim[1]*z]); |
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353 | count++; |
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354 | } |
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355 | } |
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356 | } |
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357 | return voxList; |
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358 | |
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359 | } |
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360 | |
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361 | //-------------------------------------------------------------------- |
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362 | |
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363 | std::vector<long> Object3D::getChannelList() |
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364 | { |
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365 | |
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366 | std::vector<long> chanlist; |
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367 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); |
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368 | it != this->chanlist.end(); it++){ |
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369 | chanlist.push_back(it->first); |
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370 | } |
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371 | return chanlist; |
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372 | } |
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373 | |
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374 | //-------------------------------------------------------------------- |
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375 | |
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376 | Object2D Object3D::getChanMap(long z) |
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377 | { |
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378 | Object2D obj; |
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379 | std::map<long,Object2D>::iterator it=this->chanlist.begin(); |
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380 | while(it!=this->chanlist.end() && it->first!=z) it++; |
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381 | |
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382 | if(it==this->chanlist.end()) obj = Object2D(); |
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383 | else obj = it->second; |
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384 | |
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385 | return obj; |
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386 | } |
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387 | |
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388 | //-------------------------------------------------------------------- |
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389 | |
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390 | int Object3D::getMaxAdjacentChannels() |
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391 | { |
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392 | /// @details Find the maximum number of contiguous channels in the |
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393 | /// object. Since there can be gaps in the channels included in an |
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394 | /// object, we run through the list of channels and keep track of |
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395 | /// sizes of contiguous segments. Then return the largest size. |
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396 | |
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397 | int maxnumchan=0; |
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398 | int zcurrent=0, zprevious,zcount=0; |
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399 | std::map<long, Object2D>::iterator it; |
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400 | for(it = this->chanlist.begin(); it!=this->chanlist.end();it++) |
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401 | { |
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402 | if(it==this->chanlist.begin()){ |
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403 | zcount++; |
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404 | zcurrent = it->first; |
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405 | } |
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406 | else{ |
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407 | zprevious = zcurrent; |
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408 | zcurrent = it->first; |
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409 | if(zcurrent-zprevious>1){ |
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410 | maxnumchan = std::max(maxnumchan, zcount); |
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411 | zcount=1; |
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412 | } |
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413 | else zcount++; |
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414 | } |
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415 | } |
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416 | maxnumchan = std::max(maxnumchan,zcount); |
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417 | return maxnumchan; |
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418 | } |
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419 | |
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420 | //-------------------------------------------------------------------- |
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421 | |
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422 | void Object3D::addOffsets(long xoff, long yoff, long zoff) |
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423 | { |
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424 | std::map<long,Object2D> newmap; |
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425 | for(std::map<long, Object2D>::iterator it = this->chanlist.begin(); it!=this->chanlist.end();it++){ |
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426 | std::pair<long,Object2D> newOne(it->first+zoff, it->second); |
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427 | newOne.second.addOffsets(xoff,yoff); |
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428 | newmap.insert(newOne); |
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429 | } |
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430 | this->chanlist.clear(); |
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431 | this->chanlist = newmap; |
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432 | if(this->numVox>0){ |
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433 | this->xSum += xoff*numVox; |
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434 | this->xmin += xoff; this->xmax += xoff; |
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435 | this->ySum += yoff*numVox; |
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436 | this->ymin += yoff; this->ymax += yoff; |
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437 | this->zSum += zoff*numVox; |
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438 | this->zmin += zoff; this->zmax += zoff; |
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439 | } |
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440 | } |
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441 | |
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442 | |
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443 | duchamp::Section Object3D::getBoundingSection(int boundary) |
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444 | { |
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445 | std::stringstream ss; |
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446 | ss << "[" << this->xmin-boundary <<":"<<this->xmax+boundary<<","<< this->ymin-boundary <<":"<<this->ymax+boundary<<","<< this->zmin-boundary <<":"<<this->zmax+boundary<<"]"; |
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447 | std::string sec=ss.str(); |
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448 | duchamp::Section section(sec); |
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449 | return section; |
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450 | } |
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451 | |
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452 | } |
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