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comparison 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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2155:71d6ad7036b7 2156:340bde744884
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
7 *
8 * This program is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation, either version 3 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
21 **/
22
23
24 #include "DebugDrawing2D.h"
25
26
27 namespace OrthancStone
28 {
29 class DebugDrawing2D::Segment
30 {
31 private:
32 double x1_;
33 double y1_;
34 double x2_;
35 double y2_;
36 std::string color_;
37 bool arrow_;
38
39 public:
40 Segment(double x1,
41 double y1,
42 double x2,
43 double y2,
44 const std::string& color,
45 bool arrow) :
46 x1_(x1),
47 y1_(y1),
48 x2_(x2),
49 y2_(y2),
50 color_(color),
51 arrow_(arrow)
52 {
53 }
54
55 double GetX1() const
56 {
57 return x1_;
58 }
59
60 double GetY1() const
61 {
62 return y1_;
63 }
64
65 double GetX2() const
66 {
67 return x2_;
68 }
69
70 double GetY2() const
71 {
72 return y2_;
73 }
74
75 const std::string& GetColor() const
76 {
77 return color_;
78 }
79
80 bool IsArrow() const
81 {
82 return arrow_;
83 }
84 };
85
86
87 void DebugDrawing2D::AddSegment(double x1,
88 double y1,
89 double x2,
90 double y2,
91 const std::string& color,
92 bool arrow,
93 bool addToExtent)
94 {
95 if (addToExtent)
96 {
97 extent_.AddPoint(x1, y1);
98 extent_.AddPoint(x2, y2);
99 }
100
101 segments_.push_back(Segment(x1, y1, x2, y2, color, arrow));
102 }
103
104
105 void DebugDrawing2D::SaveSvg(const std::string& path)
106 {
107 // Size in pixels
108 float ww, hh;
109 if (extent_.IsEmpty())
110 {
111 ww = 2048.0f;
112 hh = 2048.0f;
113 }
114 else if (extent_.GetWidth() > extent_.GetHeight())
115 {
116 ww = 2048.0f;
117 hh = ww * extent_.GetHeight() / extent_.GetWidth();
118 }
119 else
120 {
121 hh = 2048.0f;
122 ww = hh * extent_.GetWidth() / extent_.GetHeight();
123 }
124
125 FILE* fp = fopen(path.c_str(), "w");
126 fprintf(fp, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
127 fprintf(fp, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
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());
129
130 // http://thenewcode.com/1068/Making-Arrows-in-SVG
131 fprintf(fp, "<defs>\n");
132 fprintf(fp, "<marker id=\"arrowhead\" markerWidth=\"2\" markerHeight=\"3\" \n");
133 fprintf(fp, "refX=\"2\" refY=\"1.5\" orient=\"auto\">\n");
134 fprintf(fp, "<polygon points=\"0 0, 2 1.5, 0 3\" />\n");
135 fprintf(fp, "</marker>\n");
136 fprintf(fp, "</defs>\n");
137
138 fprintf(fp, "<rect fill=\"#fff\" stroke=\"#000\" x=\"0\" y=\"0\" width=\"%f\" height=\"%f\"/>\n", extent_.GetWidth(), extent_.GetHeight());
139
140 for (std::list<Segment>::const_iterator it = segments_.begin(); it != segments_.end(); ++it)
141 {
142 float strokeWidth = 0.1;
143
144 std::string s;
145 if (it->IsArrow())
146 {
147 s = "marker-end=\"url(#arrowhead)\"";
148 }
149
150 fprintf(fp, "<line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" stroke=\"%s\" stroke-width=\"%f\" %s/>\n",
151 it->GetX1() - extent_.GetX1(), it->GetY1() - extent_.GetY1(),
152 it->GetX2() - extent_.GetX1(), it->GetY2() - extent_.GetY1(),
153 it->GetColor().c_str(), strokeWidth, s.c_str());
154 }
155
156 fprintf(fp, "</svg>\n");
157
158 fclose(fp);
159 }
160 }