Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Toolbox/DebugDrawing2D.cpp @ 2156:340bde744884

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added DebugDrawing2D and GeometryToolbox::IntersectLineAndSegment()
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 27 Sep 2024 22:14:36 +0200
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children f14260c15151
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rev   line source
2156
340bde744884 added DebugDrawing2D and GeometryToolbox::IntersectLineAndSegment()
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #include "DebugDrawing2D.h"
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25
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26
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27 namespace OrthancStone
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28 {
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29 class DebugDrawing2D::Segment
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30 {
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31 private:
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32 double x1_;
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33 double y1_;
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34 double x2_;
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35 double y2_;
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36 std::string color_;
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37 bool arrow_;
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38
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39 public:
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40 Segment(double x1,
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41 double y1,
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42 double x2,
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43 double y2,
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44 const std::string& color,
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45 bool arrow) :
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46 x1_(x1),
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47 y1_(y1),
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48 x2_(x2),
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49 y2_(y2),
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50 color_(color),
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51 arrow_(arrow)
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52 {
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53 }
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54
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55 double GetX1() const
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56 {
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57 return x1_;
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58 }
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59
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60 double GetY1() const
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61 {
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62 return y1_;
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63 }
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64
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65 double GetX2() const
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66 {
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67 return x2_;
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68 }
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69
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70 double GetY2() const
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71 {
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72 return y2_;
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73 }
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74
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75 const std::string& GetColor() const
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76 {
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77 return color_;
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78 }
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79
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80 bool IsArrow() const
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81 {
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82 return arrow_;
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83 }
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84 };
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85
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86
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87 void DebugDrawing2D::AddSegment(double x1,
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88 double y1,
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89 double x2,
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90 double y2,
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91 const std::string& color,
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92 bool arrow,
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93 bool addToExtent)
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94 {
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95 if (addToExtent)
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96 {
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97 extent_.AddPoint(x1, y1);
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98 extent_.AddPoint(x2, y2);
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99 }
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100
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101 segments_.push_back(Segment(x1, y1, x2, y2, color, arrow));
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102 }
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103
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104
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105 void DebugDrawing2D::SaveSvg(const std::string& path)
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106 {
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107 // Size in pixels
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108 float ww, hh;
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109 if (extent_.IsEmpty())
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110 {
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111 ww = 2048.0f;
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112 hh = 2048.0f;
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113 }
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114 else if (extent_.GetWidth() > extent_.GetHeight())
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115 {
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116 ww = 2048.0f;
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117 hh = ww * extent_.GetHeight() / extent_.GetWidth();
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118 }
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119 else
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120 {
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121 hh = 2048.0f;
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122 ww = hh * extent_.GetWidth() / extent_.GetHeight();
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123 }
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124
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125 FILE* fp = fopen(path.c_str(), "w");
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126 fprintf(fp, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
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127 fprintf(fp, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
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128 fprintf(fp, "<svg width=\"%f\" height=\"%f\" viewBox=\"0 0 %f %f\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n", ww, hh, extent_.GetWidth(), extent_.GetHeight());
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129
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130 // http://thenewcode.com/1068/Making-Arrows-in-SVG
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131 fprintf(fp, "<defs>\n");
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132 fprintf(fp, "<marker id=\"arrowhead\" markerWidth=\"2\" markerHeight=\"3\" \n");
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133 fprintf(fp, "refX=\"2\" refY=\"1.5\" orient=\"auto\">\n");
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134 fprintf(fp, "<polygon points=\"0 0, 2 1.5, 0 3\" />\n");
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135 fprintf(fp, "</marker>\n");
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136 fprintf(fp, "</defs>\n");
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137
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138 fprintf(fp, "<rect fill=\"#fff\" stroke=\"#000\" x=\"0\" y=\"0\" width=\"%f\" height=\"%f\"/>\n", extent_.GetWidth(), extent_.GetHeight());
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139
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140 for (std::list<Segment>::const_iterator it = segments_.begin(); it != segments_.end(); ++it)
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141 {
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142 float strokeWidth = 0.1;
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143
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144 std::string s;
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145 if (it->IsArrow())
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146 {
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147 s = "marker-end=\"url(#arrowhead)\"";
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148 }
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149
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150 fprintf(fp, "<line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" stroke=\"%s\" stroke-width=\"%f\" %s/>\n",
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151 it->GetX1() - extent_.GetX1(), it->GetY1() - extent_.GetY1(),
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152 it->GetX2() - extent_.GetX1(), it->GetY2() - extent_.GetY1(),
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153 it->GetColor().c_str(), strokeWidth, s.c_str());
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154 }
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155
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156 fprintf(fp, "</svg>\n");
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157
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158 fclose(fp);
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159 }
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160 }