Mercurial > hg > orthanc-stone

annotate Framework/Radiography/RadiographyMaskLayer.cpp @ 480:2f6ecb5037ea am-touch-events

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added mouse tracker for Layer Mask. Everything seems ok
author am@osimis.io
date Thu, 14 Feb 2019 10:18:02 +0100
parents e3d316ba34ba
children 159a465e27bd
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rev   line source
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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 "RadiographyMaskLayer.h"
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23 #include "RadiographyDicomLayer.h"
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24
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25 #include "RadiographyScene.h"
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26 #include "Core/Images/Image.h"
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27 #include "Core/Images/ImageProcessing.h"
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28 #include <Core/OrthancException.h>
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29
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30 namespace OrthancStone
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31 {
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32 const unsigned char IN_MASK_VALUE = 0x00;
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33 const unsigned char OUT_MASK_VALUE = 0xFF;
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34
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35 const AffineTransform2D& RadiographyMaskLayer::GetTransform() const
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36 {
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37 return dicomLayer_.GetTransform();
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38 }
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39
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40 const AffineTransform2D& RadiographyMaskLayer::GetTransformInverse() const
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41 {
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42 return dicomLayer_.GetTransformInverse();
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43 }
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44
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45 bool RadiographyMaskLayer::GetPixel(unsigned int& imageX,
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46 unsigned int& imageY,
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47 double sceneX,
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48 double sceneY) const
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49 {
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50 return dicomLayer_.GetPixel(imageX, imageY, sceneX, sceneY);
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51 }
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52
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53
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54 void ComputeMaskExtent(unsigned int& left, unsigned int& right, unsigned int& top, unsigned int& bottom, const std::vector<MaskPoint>& corners)
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55 {
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56 left = std::numeric_limits<unsigned int>::max();
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57 right = std::numeric_limits<unsigned int>::min();
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58 top = std::numeric_limits<unsigned int>::max();
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59 bottom = std::numeric_limits<unsigned int>::min();
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60
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61 for (size_t i = 0; i < corners.size(); i++)
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62 {
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63 const MaskPoint& p = corners[i];
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64 left = std::min(p.x, left);
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65 right = std::max(p.x, right);
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66 bottom = std::max(p.y, bottom);
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67 top = std::min(p.y, top);
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68 }
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69 }
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70
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71 void RadiographyMaskLayer::SetCorner(const MaskPoint& corner, size_t index)
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72 {
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73 if (index < corners_.size())
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74 corners_[index] = corner;
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75 else
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76 corners_.push_back(corner);
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77 invalidated_ = true;
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78 }
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79
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80 void RadiographyMaskLayer::SetCorners(const std::vector<MaskPoint>& corners)
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81 {
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82 corners_ = corners;
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83 invalidated_ = true;
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84 }
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85
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86 void RadiographyMaskLayer::Render(Orthanc::ImageAccessor& buffer,
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87 const AffineTransform2D& viewTransform,
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88 ImageInterpolation interpolation) const
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89 {
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90 if (dicomLayer_.GetWidth() == 0) // nothing to do if the DICOM layer is not displayed (or not loaded)
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91 return;
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92
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93 if (invalidated_)
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94 {
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95 mask_.reset(new Orthanc::Image(Orthanc::PixelFormat_Grayscale8, dicomLayer_.GetWidth(), dicomLayer_.GetHeight(), false));
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96
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97 DrawMask();
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98
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99 invalidated_ = false;
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100 }
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101
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102 {// rendering
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103 if (buffer.GetFormat() != Orthanc::PixelFormat_Float32)
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104 {
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105 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
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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 dicomLayer_.GetCrop(cropX, cropY, cropWidth, cropHeight);
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110
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111 const AffineTransform2D t = AffineTransform2D::Combine(
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112 viewTransform, dicomLayer_.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 mask_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight);
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117
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118 Orthanc::Image tmp(Orthanc::PixelFormat_Grayscale8, buffer.GetWidth(), buffer.GetHeight(), false);
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119
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120 t.Apply(tmp, cropped, interpolation, true /* clear */);
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121
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122 // Blit
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123 const unsigned int width = buffer.GetWidth();
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124 const unsigned int height = buffer.GetHeight();
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125
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126 for (unsigned int y = 0; y < height; y++)
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127 {
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128 float *q = reinterpret_cast<float*>(buffer.GetRow(y));
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129 const uint8_t *p = reinterpret_cast<uint8_t*>(tmp.GetRow(y));
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130
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131 for (unsigned int x = 0; x < width; x++, p++, q++)
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132 {
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133 if (*p == OUT_MASK_VALUE)
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134 *q = foreground_;
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135 // else keep the underlying pixel value
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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 }
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141
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142 void RadiographyMaskLayer::DrawMask() const
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143 {
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144 unsigned int left;
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145 unsigned int right;
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146 unsigned int top;
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147 unsigned int bottom;
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148
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149 ComputeMaskExtent(left, right, top, bottom, corners_);
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150
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151 // first fill the complete image
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152 Orthanc::ImageProcessing::Set(*mask_, OUT_MASK_VALUE);
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153
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154 {
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155 // from http://alienryderflex.com/polygon_fill/
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156 std::auto_ptr<int> raiiNodeX(new int(corners_.size()));
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157
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158 // convert all control points to double only once
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159 std::vector<double> cpx;
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160 std::vector<double> cpy;
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161 int cpSize = corners_.size();
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162 for (size_t i = 0; i < corners_.size(); i++)
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163 {
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164 cpx.push_back((double)corners_[i].x);
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165 cpy.push_back((double)corners_[i].y);
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166 }
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167
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168 std::vector<int> nodeX;
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169 nodeX.resize(cpSize);
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170 int nodes, pixelX, pixelY, i, j, swap ;
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171
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172 // Loop through the rows of the image.
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173 for (pixelY = (int)top; pixelY < (int)bottom; pixelY++)
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174 {
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175 double y = (double)pixelY;
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176 // Build a list of nodes.
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177 nodes = 0;
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178 j = cpSize - 1;
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179
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180 for (i = 0; i < cpSize; i++)
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181 {
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182 if ((cpy[i] < y && cpy[j] >= y)
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183 || (cpy[j] < y && cpy[i] >= y))
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184 {
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185 nodeX[nodes++]= (int)(cpx[i] + (y - cpy[i])/(cpy[j] - cpy[i]) *(cpx[j] - cpx[i]));
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186 }
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187 j=i;
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188 }
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189
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190 // Sort the nodes, via a simple “Bubble” sort.
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191 i=0;
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192 while (i < nodes-1)
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193 {
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194 if (nodeX[i] > nodeX[i+1])
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195 {
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196 swap = nodeX[i];
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197 nodeX[i] = nodeX[i+1];
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198 nodeX[i+1] = swap;
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199 if (i)
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200 i--;
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201 }
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202 else
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203 {
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204 i++;
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205 }
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206 }
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207
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208 unsigned char* row = reinterpret_cast<unsigned char*>(mask_->GetRow(pixelY));
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209 // Fill the pixels between node pairs.
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210 for (i=0; i<nodes; i+=2)
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211 {
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212 if (nodeX[i ]>=(int)right)
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213 break;
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214 if (nodeX[i+1]>= (int)left)
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215 {
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216 if (nodeX[i ]< (int)left )
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217 nodeX[i ]=(int)left ;
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218 if (nodeX[i+1]> (int)right)
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219 nodeX[i+1]=(int)right;
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220 for (pixelX = nodeX[i]; pixelX <= nodeX[i+1]; pixelX++)
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221 {
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222 *(row + pixelX) = IN_MASK_VALUE;
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223 }
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224 }
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225 }
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226 }
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227 }
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228 }
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229
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230 }