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430
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "RadiographyDicomLayer.h"
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23
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24 #include "RadiographyScene.h"
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25 #include "../Toolbox/DicomFrameConverter.h"
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26
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27 #include <Core/OrthancException.h>
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28 #include <Core/Images/Image.h>
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29 #include <Core/Images/ImageProcessing.h>
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30 #include <Plugins/Samples/Common/DicomDatasetReader.h>
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31
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32 static OrthancPlugins::DicomTag ConvertTag(const Orthanc::DicomTag& tag)
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33 {
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34 return OrthancPlugins::DicomTag(tag.GetGroup(), tag.GetElement());
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35 }
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36
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37 namespace OrthancStone
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38 {
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39
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40 void RadiographyDicomLayer::ApplyConverter()
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41 {
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42 if (source_.get() != NULL &&
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43 converter_.get() != NULL)
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44 {
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45 converted_.reset(converter_->ConvertFrame(*source_));
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46 }
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47 }
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48
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49
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50 void RadiographyDicomLayer::SetDicomTags(const OrthancPlugins::FullOrthancDataset& dataset)
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51 {
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52 converter_.reset(new DicomFrameConverter);
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53 converter_->ReadParameters(dataset);
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54 ApplyConverter();
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55
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56 std::string tmp;
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57 Vector pixelSpacing;
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58
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59 if (dataset.GetStringValue(tmp, ConvertTag(Orthanc::DICOM_TAG_PIXEL_SPACING)) &&
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60 LinearAlgebra::ParseVector(pixelSpacing, tmp) &&
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61 pixelSpacing.size() == 2)
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62 {
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63 SetPixelSpacing(pixelSpacing[0], pixelSpacing[1]);
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64 }
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65
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66 //SetPan(-0.5 * GetPixelSpacingX(), -0.5 * GetPixelSpacingY());
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67
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68 OrthancPlugins::DicomDatasetReader reader(dataset);
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69
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70 unsigned int width, height;
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71 if (!reader.GetUnsignedIntegerValue(width, ConvertTag(Orthanc::DICOM_TAG_COLUMNS)) ||
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72 !reader.GetUnsignedIntegerValue(height, ConvertTag(Orthanc::DICOM_TAG_ROWS)))
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73 {
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74 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
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75 }
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76 else
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77 {
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78 SetSize(width, height);
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79 }
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80 }
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81
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82 void RadiographyDicomLayer::SetSourceImage(Orthanc::ImageAccessor* image) // Takes ownership
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83 {
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84 std::auto_ptr<Orthanc::ImageAccessor> raii(image);
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85
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86 if (image == NULL)
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87 {
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88 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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89 }
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90
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91 SetSize(image->GetWidth(), image->GetHeight());
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92
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93 source_ = raii;
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94 ApplyConverter();
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95 }
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96
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97 void RadiographyDicomLayer::Render(Orthanc::ImageAccessor& buffer,
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98 const AffineTransform2D& viewTransform,
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99 ImageInterpolation interpolation) const
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100 {
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101 if (converted_.get() != NULL)
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102 {
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103 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32)
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104 {
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105 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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106 }
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107
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108 unsigned int cropX, cropY, cropWidth, cropHeight;
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109 GetCrop(cropX, cropY, cropWidth, cropHeight);
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110
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111 AffineTransform2D t = AffineTransform2D::Combine(
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112 viewTransform, GetTransform(),
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113 AffineTransform2D::CreateOffset(cropX, cropY));
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114
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115 Orthanc::ImageAccessor cropped;
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116 converted_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight);
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117
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118 t.Apply(buffer, cropped, interpolation, false);
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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 bool RadiographyDicomLayer::GetDefaultWindowing(float& center,
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124 float& width) const
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125 {
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126 if (converter_.get() != NULL &&
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127 converter_->HasDefaultWindow())
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128 {
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129 center = static_cast<float>(converter_->GetDefaultWindowCenter());
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130 width = static_cast<float>(converter_->GetDefaultWindowWidth());
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131 return true;
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132 }
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133 else
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134 {
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135 return false;
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136 }
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137 }
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138
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139
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140 bool RadiographyDicomLayer::GetRange(float& minValue,
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141 float& maxValue) const
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142 {
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143 if (converted_.get() != NULL)
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144 {
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145 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32)
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146 {
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147 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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148 }
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149
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150 Orthanc::ImageProcessing::GetMinMaxFloatValue(minValue, maxValue, *converted_);
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151 return true;
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152 }
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153 else
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154 {
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155 return false;
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156 }
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157 }
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158
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159 }
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