annotate OrthancCppClient/Series.cpp @ 1202:476a17cfdf42

Fix crash when bad HTTP credentials are provided
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 27 Oct 2014 13:45:36 +0100
parents de18e90d5507
children 6e7e5ed91c2d
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "../Core/PrecompiledHeaders.h"
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34 #include "Series.h"
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35
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36 #include "OrthancConnection.h"
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37
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38 #include <set>
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39 #include <boost/lexical_cast.hpp>
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40
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41 namespace OrthancClient
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42 {
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43 namespace
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44 {
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45 class SliceLocator
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46 {
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47 private:
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48 float normal_[3];
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49
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50 public:
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51 SliceLocator(Instance& someSlice)
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52 {
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53 /**
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54 * Compute the slice normal from Image Orientation Patient.
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55 * http://nipy.sourceforge.net/nibabel/dicom/dicom_orientation.html#dicom-z-from-slice
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56 * http://dicomiseasy.blogspot.be/2013/06/getting-oriented-using-image-plane.html
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57 * http://www.itk.org/pipermail/insight-users/2003-September/004762.html
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58 **/
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59
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60 std::vector<float> cosines;
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61 someSlice.SplitVectorOfFloats(cosines, "ImageOrientationPatient"); // 0020-0037
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62
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63 if (cosines.size() != 6)
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64 {
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65 throw OrthancClientException(Orthanc::ErrorCode_BadFileFormat);
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66 }
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67
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68 normal_[0] = cosines[1] * cosines[5] - cosines[2] * cosines[4];
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69 normal_[1] = cosines[2] * cosines[3] - cosines[0] * cosines[5];
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70 normal_[2] = cosines[0] * cosines[4] - cosines[1] * cosines[3];
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71 }
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72
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73
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74 /**
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75 * Compute the distance of some slice along the slice normal.
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76 **/
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77 float ComputeSliceLocation(Instance& instance) const
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78 {
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79 std::vector<float> ipp;
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80 instance.SplitVectorOfFloats(ipp, "ImagePositionPatient"); // 0020-0032
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81 if (ipp.size() != 3)
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82 {
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83 throw OrthancClientException(Orthanc::ErrorCode_BadFileFormat);
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84 }
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85
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86 float dist = 0;
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87
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88 for (int i = 0; i < 3; i++)
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89 {
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90 dist += normal_[i] * ipp[i];
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91 }
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92
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93 return dist;
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94 }
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95 };
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96
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97 class ImageDownloadCommand : public Orthanc::ICommand
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98 {
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99 private:
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100 Orthanc::PixelFormat format_;
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101 Orthanc::ImageExtractionMode mode_;
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102 Instance& instance_;
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103 void* target_;
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104 size_t lineStride_;
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105
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106 public:
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107 ImageDownloadCommand(Instance& instance,
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108 Orthanc::PixelFormat format,
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109 Orthanc::ImageExtractionMode mode,
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110 void* target,
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111 size_t lineStride) :
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112 format_(format),
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113 mode_(mode),
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114 instance_(instance),
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115 target_(target),
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116 lineStride_(lineStride)
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117 {
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118 instance_.SetImageExtractionMode(mode);
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119 }
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120
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121 virtual bool Execute()
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122 {
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123 using namespace Orthanc;
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124
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125 unsigned int width = instance_.GetHeight();
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126
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127 for (unsigned int y = 0; y < instance_.GetHeight(); y++)
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128 {
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129 uint8_t* p = reinterpret_cast<uint8_t*>(target_) + y * lineStride_;
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130
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131 if (instance_.GetPixelFormat() == format_)
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132 {
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133 memcpy(p, instance_.GetBuffer(y), GetBytesPerPixel(instance_.GetPixelFormat()) * instance_.GetWidth());
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134 }
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135 else if (instance_.GetPixelFormat() == PixelFormat_Grayscale8 &&
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136 format_ == PixelFormat_RGB24)
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137 {
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138 const uint8_t* s = reinterpret_cast<const uint8_t*>(instance_.GetBuffer(y));
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139 for (unsigned int x = 0; x < width; x++, s++, p += 3)
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140 {
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141 p[0] = *s;
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142 p[1] = *s;
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143 p[2] = *s;
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144 }
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145 }
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146 else
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147 {
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148 throw OrthancClientException(ErrorCode_NotImplemented);
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149 }
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150 }
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151
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152 // Do not keep the image in memory, as we are loading 3D images
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153 instance_.DiscardImage();
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154
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155 return true;
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156 }
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157 };
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158
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159
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160 class ProgressToFloatListener : public Orthanc::ThreadedCommandProcessor::IListener
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161 {
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162 private:
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163 float* target_;
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164
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165 public:
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166 ProgressToFloatListener(float* target) : target_(target)
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167 {
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168 }
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169
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170 virtual void SignalProgress(unsigned int current,
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171 unsigned int total)
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172 {
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173 if (total == 0)
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174 {
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175 *target_ = 0;
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176 }
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177 else
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178 {
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179 *target_ = static_cast<float>(current) / static_cast<float>(total);
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180 }
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181 }
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182
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183 virtual void SignalSuccess(unsigned int total)
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184 {
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185 *target_ = 1;
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186 }
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187
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188 virtual void SignalFailure()
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189 {
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190 *target_ = 0;
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191 }
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192
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193 virtual void SignalCancel()
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194 {
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195 *target_ = 0;
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196 }
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197 };
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198
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199 }
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200
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201
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202 void Series::Check3DImage()
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203 {
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204 if (!Is3DImage())
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205 {
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206 throw OrthancClientException(Orthanc::ErrorCode_NotImplemented);
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207 }
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208 }
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209
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210 bool Series::Is3DImageInternal()
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211 {
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212 try
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213 {
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214 if (GetInstanceCount() == 0)
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215 {
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216 // Empty image, use some default value (should never happen)
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217 voxelSizeX_ = 1;
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218 voxelSizeY_ = 1;
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219 voxelSizeZ_ = 1;
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220 sliceThickness_ = 1;
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221
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222 return true;
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223 }
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224
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225 // Choose a reference slice
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226 Instance& reference = GetInstance(0);
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227
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228 // Check that all the child instances share the same 3D parameters
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229 for (unsigned int i = 0; i < GetInstanceCount(); i++)
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230 {
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231 Instance& i2 = GetInstance(i);
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232
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233 if (std::string(reference.GetTagAsString("Columns")) != std::string(i2.GetTagAsString("Columns")) ||
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234 std::string(reference.GetTagAsString("Rows")) != std::string(i2.GetTagAsString("Rows")) ||
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235 std::string(reference.GetTagAsString("ImageOrientationPatient")) != std::string(i2.GetTagAsString("ImageOrientationPatient")) ||
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236 std::string(reference.GetTagAsString("SliceThickness")) != std::string(i2.GetTagAsString("SliceThickness")) ||
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237 std::string(reference.GetTagAsString("PixelSpacing")) != std::string(i2.GetTagAsString("PixelSpacing")))
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238 {
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239 return false;
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240 }
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241 }
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242
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243
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244 // Extract X/Y voxel size and slice thickness
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245 std::string s = GetInstance(0).GetTagAsString("PixelSpacing"); // 0028-0030
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246 size_t pos = s.find('\\');
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247 assert(pos != std::string::npos);
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248 std::string sy = s.substr(0, pos);
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249 std::string sx = s.substr(pos + 1);
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250
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251 try
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252 {
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253 voxelSizeX_ = boost::lexical_cast<float>(sx);
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254 voxelSizeY_ = boost::lexical_cast<float>(sy);
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255 }
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256 catch (boost::bad_lexical_cast)
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257 {
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258 throw OrthancClientException(Orthanc::ErrorCode_BadFileFormat);
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259 }
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260
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261 sliceThickness_ = GetInstance(0).GetTagAsFloat("SliceThickness"); // 0018-0050
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262
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263
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264 // Compute the location of each slice to extract the voxel size along Z
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265 voxelSizeZ_ = std::numeric_limits<float>::infinity();
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266
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267 SliceLocator locator(reference);
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268 float referenceSliceLocation = locator.ComputeSliceLocation(reference);
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269
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270 std::set<float> l;
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271 for (unsigned int i = 0; i < GetInstanceCount(); i++)
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272 {
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273 float location = locator.ComputeSliceLocation(GetInstance(i));
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274 float distanceToReferenceSlice = fabs(location - referenceSliceLocation);
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275
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276 l.insert(location);
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277
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278 if (distanceToReferenceSlice > std::numeric_limits<float>::epsilon() &&
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279 distanceToReferenceSlice < voxelSizeZ_)
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280 {
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281 voxelSizeZ_ = distanceToReferenceSlice;
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282 }
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283 }
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284
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285
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286 // Make sure that 2 slices do not share the same Z location
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287 return l.size() == GetInstanceCount();
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288 }
504
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289 catch (OrthancClientException)
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290 {
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291 return false;
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292 }
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293 }
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294
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295 void Series::ReadSeries()
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296 {
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297 Orthanc::HttpClient client(connection_.GetHttpClient());
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298
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299 client.SetUrl(std::string(connection_.GetOrthancUrl()) + "/series/" + id_);
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300 Json::Value v;
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301 if (!client.Apply(series_))
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302 {
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303 throw OrthancClientException(Orthanc::ErrorCode_NetworkProtocol);
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304 }
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305 }
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306
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307 Orthanc::IDynamicObject* Series::GetFillerItem(size_t index)
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308 {
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309 Json::Value::ArrayIndex tmp = static_cast<Json::Value::ArrayIndex>(index);
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310 std::string id = series_["Instances"][tmp].asString();
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311 return new Instance(connection_, id.c_str());
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312 }
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313
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314 Series::Series(const OrthancConnection& connection,
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315 const char* id) :
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316 connection_(connection),
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317 id_(id),
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318 instances_(*this)
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319 {
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320 ReadSeries();
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321 status_ = Status3DImage_NotTested;
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322 url_ = std::string(connection_.GetOrthancUrl()) + "/series/" + id_;
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323
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324 voxelSizeX_ = 0;
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325 voxelSizeY_ = 0;
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326 voxelSizeZ_ = 0;
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327 sliceThickness_ = 0;
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328
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329 instances_.SetThreadCount(connection.GetThreadCount());
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330 }
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331
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332
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333 bool Series::Is3DImage()
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334 {
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335 if (status_ == Status3DImage_NotTested)
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336 {
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337 status_ = Is3DImageInternal() ? Status3DImage_True : Status3DImage_False;
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338 }
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339
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340 return status_ == Status3DImage_True;
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341 }
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342
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343 unsigned int Series::GetInstanceCount()
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344 {
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345 return instances_.GetSize();
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346 }
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347
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348 Instance& Series::GetInstance(unsigned int index)
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349 {
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350 return dynamic_cast<Instance&>(instances_.GetItem(index));
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351 }
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352
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353 unsigned int Series::GetWidth()
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354 {
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355 Check3DImage();
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356
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357 if (GetInstanceCount() == 0)
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358 return 0;
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359 else
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360 return GetInstance(0).GetTagAsInt("Columns");
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361 }
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362
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363 unsigned int Series::GetHeight()
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364 {
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365 Check3DImage();
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366
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367 if (GetInstanceCount() == 0)
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368 return 0;
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369 else
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370 return GetInstance(0).GetTagAsInt("Rows");
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371 }
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372
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373 const char* Series::GetMainDicomTag(const char* tag, const char* defaultValue) const
479
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374 {
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375 if (series_["MainDicomTags"].isMember(tag))
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376 {
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377 return series_["MainDicomTags"][tag].asCString();
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378 }
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379 else
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380 {
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381 return defaultValue;
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382 }
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383 }
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384
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385
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386
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387 void Series::Load3DImageInternal(void* target,
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388 Orthanc::PixelFormat format,
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389 size_t lineStride,
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390 size_t stackStride,
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391 Orthanc::ThreadedCommandProcessor::IListener* listener)
479
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392 {
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393 using namespace Orthanc;
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394
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395 // Choose the extraction mode, depending on the format of the
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396 // target image.
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397
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398 uint8_t bytesPerPixel;
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399 ImageExtractionMode mode;
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400
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401 switch (format)
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402 {
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403 case PixelFormat_RGB24:
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404 bytesPerPixel = 3;
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405 mode = ImageExtractionMode_Preview;
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406 break;
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407
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408 case PixelFormat_Grayscale8:
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409 bytesPerPixel = 1;
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410 mode = ImageExtractionMode_UInt8; // Preview ???
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411 break;
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412
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413 case PixelFormat_Grayscale16:
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414 bytesPerPixel = 2;
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415 mode = ImageExtractionMode_UInt16;
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416 break;
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417
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418 case PixelFormat_SignedGrayscale16:
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419 bytesPerPixel = 2;
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420 mode = ImageExtractionMode_UInt16;
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421 format = PixelFormat_Grayscale16;
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422 break;
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423
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424 default:
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425 throw OrthancClientException(ErrorCode_NotImplemented);
479
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426 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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427
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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428
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parents:
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429 // Check that the target image is properly sized
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parents:
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430 unsigned int sx = GetWidth();
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parents:
diff changeset
431 unsigned int sy = GetHeight();
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parents:
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432
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433 if (lineStride < sx * bytesPerPixel ||
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434 stackStride < sx * sy * bytesPerPixel)
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parents:
diff changeset
435 {
504
50d9660f960c laaw exception
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parents: 502
diff changeset
436 throw OrthancClientException(ErrorCode_BadRequest);
479
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437 }
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parents:
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438
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439 if (sx == 0 || sy == 0 || GetInstanceCount() == 0)
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parents:
diff changeset
440 {
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441 // Empty image, nothing to do
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parents:
diff changeset
442 if (listener)
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443 listener->SignalSuccess(0);
0cd977e94479 initial commit of the c++ client
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parents:
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444 return;
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parents:
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445 }
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parents:
diff changeset
446
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
447
0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
448 /**
0cd977e94479 initial commit of the c++ client
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449 * Order the stacks according to their distance along the slice
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parents:
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450 * normal (using the "Image Position Patient" tag). This works
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parents:
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451 * even if the "SliceLocation" tag is absent.
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Sebastien Jodogne <s.jodogne@gmail.com>
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452 **/
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453 SliceLocator locator(GetInstance(0));
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454
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parents:
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455 typedef std::map<float, Instance*> Instances;
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Sebastien Jodogne <s.jodogne@gmail.com>
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456 Instances instances;
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parents:
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457 for (unsigned int i = 0; i < GetInstanceCount(); i++)
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458 {
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459 float dist = locator.ComputeSliceLocation(GetInstance(i));
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460 instances[dist] = &GetInstance(i);
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461 }
0cd977e94479 initial commit of the c++ client
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462
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463 if (instances.size() != GetInstanceCount())
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parents:
diff changeset
464 {
0cd977e94479 initial commit of the c++ client
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465 // Several instances have the same Z coordinate
504
50d9660f960c laaw exception
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parents: 502
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466 throw OrthancClientException(ErrorCode_NotImplemented);
479
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467 }
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parents:
diff changeset
468
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
469
0cd977e94479 initial commit of the c++ client
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diff changeset
470 // Submit the download of each stack as a set of commands
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471 ThreadedCommandProcessor processor(connection_.GetThreadCount());
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parents:
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472
0cd977e94479 initial commit of the c++ client
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parents:
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473 if (listener != NULL)
0cd977e94479 initial commit of the c++ client
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parents:
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474 {
0cd977e94479 initial commit of the c++ client
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475 processor.SetListener(*listener);
0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
476 }
0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
477
0cd977e94479 initial commit of the c++ client
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diff changeset
478 uint8_t* stackTarget = reinterpret_cast<uint8_t*>(target);
656
08eca5d86aad fixes to cppcheck
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parents: 585
diff changeset
479 for (Instances::iterator it = instances.begin(); it != instances.end(); ++it)
479
0cd977e94479 initial commit of the c++ client
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480 {
0cd977e94479 initial commit of the c++ client
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481 processor.Post(new ImageDownloadCommand(*it->second, format, mode, stackTarget, lineStride));
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parents:
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482 stackTarget += stackStride;
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parents:
diff changeset
483 }
0cd977e94479 initial commit of the c++ client
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parents:
diff changeset
484
0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
485
0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
486 // Wait for all the stacks to be downloaded
0cd977e94479 initial commit of the c++ client
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parents:
diff changeset
487 if (!processor.Join())
0cd977e94479 initial commit of the c++ client
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parents:
diff changeset
488 {
504
50d9660f960c laaw exception
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parents: 502
diff changeset
489 throw OrthancClientException(ErrorCode_NetworkProtocol);
479
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parents:
diff changeset
490 }
0cd977e94479 initial commit of the c++ client
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491 }
0cd977e94479 initial commit of the c++ client
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492
502
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
493 float Series::GetVoxelSizeX()
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
494 {
986
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parents: 824
diff changeset
495 Check3DImage(); // Is3DImageInternal() will compute the voxel sizes
502
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
496 return voxelSizeX_;
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
497 }
ee33c7d0cda0 laaw runs correctly on the c++ api
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 500
diff changeset
498
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
499 float Series::GetVoxelSizeY()
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
500 {
986
de18e90d5507 fix GetVoxelSizeZ
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
501 Check3DImage(); // Is3DImageInternal() will compute the voxel sizes
502
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
502 return voxelSizeY_;
ee33c7d0cda0 laaw runs correctly on the c++ api
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 500
diff changeset
503 }
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
504
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
505 float Series::GetVoxelSizeZ()
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
506 {
986
de18e90d5507 fix GetVoxelSizeZ
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parents: 824
diff changeset
507 Check3DImage(); // Is3DImageInternal() will compute the voxel sizes
502
ee33c7d0cda0 laaw runs correctly on the c++ api
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parents: 500
diff changeset
508 return voxelSizeZ_;
ee33c7d0cda0 laaw runs correctly on the c++ api
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 500
diff changeset
509 }
ee33c7d0cda0 laaw runs correctly on the c++ api
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 500
diff changeset
510
986
de18e90d5507 fix GetVoxelSizeZ
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parents: 824
diff changeset
511 float Series::GetSliceThickness()
de18e90d5507 fix GetVoxelSizeZ
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
512 {
de18e90d5507 fix GetVoxelSizeZ
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parents: 824
diff changeset
513 Check3DImage(); // Is3DImageInternal() will compute the voxel sizes
de18e90d5507 fix GetVoxelSizeZ
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parents: 824
diff changeset
514 return sliceThickness_;
de18e90d5507 fix GetVoxelSizeZ
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
515 }
de18e90d5507 fix GetVoxelSizeZ
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parents: 824
diff changeset
516
548
ffedcc8f0938 progress
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parents: 504
diff changeset
517 void Series::Load3DImage(void* target,
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
518 Orthanc::PixelFormat format,
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
519 int64_t lineStride,
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
520 int64_t stackStride,
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
521 float* progress)
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
522 {
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
523 ProgressToFloatListener listener(progress);
585
b2357f1f026f fix types
jodogne
parents: 548
diff changeset
524 Load3DImageInternal(target, format, static_cast<size_t>(lineStride),
b2357f1f026f fix types
jodogne
parents: 548
diff changeset
525 static_cast<size_t>(stackStride), &listener);
548
ffedcc8f0938 progress
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 504
diff changeset
526 }
479
0cd977e94479 initial commit of the c++ client
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
527 }