Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Toolbox/DebugDrawing2D.cpp @ 2156:340bde744884
added DebugDrawing2D and GeometryToolbox::IntersectLineAndSegment()
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 27 Sep 2024 22:14:36 +0200 |
parents | |
children | f14260c15151 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Toolbox/DebugDrawing2D.cpp Fri Sep 27 22:14:36 2024 +0200 @@ -0,0 +1,160 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2023 Osimis S.A., Belgium + * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program. If not, see + * <http://www.gnu.org/licenses/>. + **/ + + +#include "DebugDrawing2D.h" + + +namespace OrthancStone +{ + class DebugDrawing2D::Segment + { + private: + double x1_; + double y1_; + double x2_; + double y2_; + std::string color_; + bool arrow_; + + public: + Segment(double x1, + double y1, + double x2, + double y2, + const std::string& color, + bool arrow) : + x1_(x1), + y1_(y1), + x2_(x2), + y2_(y2), + color_(color), + arrow_(arrow) + { + } + + double GetX1() const + { + return x1_; + } + + double GetY1() const + { + return y1_; + } + + double GetX2() const + { + return x2_; + } + + double GetY2() const + { + return y2_; + } + + const std::string& GetColor() const + { + return color_; + } + + bool IsArrow() const + { + return arrow_; + } + }; + + + void DebugDrawing2D::AddSegment(double x1, + double y1, + double x2, + double y2, + const std::string& color, + bool arrow, + bool addToExtent) + { + if (addToExtent) + { + extent_.AddPoint(x1, y1); + extent_.AddPoint(x2, y2); + } + + segments_.push_back(Segment(x1, y1, x2, y2, color, arrow)); + } + + + void DebugDrawing2D::SaveSvg(const std::string& path) + { + // Size in pixels + float ww, hh; + if (extent_.IsEmpty()) + { + ww = 2048.0f; + hh = 2048.0f; + } + else if (extent_.GetWidth() > extent_.GetHeight()) + { + ww = 2048.0f; + hh = ww * extent_.GetHeight() / extent_.GetWidth(); + } + else + { + hh = 2048.0f; + ww = hh * extent_.GetWidth() / extent_.GetHeight(); + } + + FILE* fp = fopen(path.c_str(), "w"); + fprintf(fp, "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"); + fprintf(fp, "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n"); + 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()); + + // http://thenewcode.com/1068/Making-Arrows-in-SVG + fprintf(fp, "<defs>\n"); + fprintf(fp, "<marker id=\"arrowhead\" markerWidth=\"2\" markerHeight=\"3\" \n"); + fprintf(fp, "refX=\"2\" refY=\"1.5\" orient=\"auto\">\n"); + fprintf(fp, "<polygon points=\"0 0, 2 1.5, 0 3\" />\n"); + fprintf(fp, "</marker>\n"); + fprintf(fp, "</defs>\n"); + + fprintf(fp, "<rect fill=\"#fff\" stroke=\"#000\" x=\"0\" y=\"0\" width=\"%f\" height=\"%f\"/>\n", extent_.GetWidth(), extent_.GetHeight()); + + for (std::list<Segment>::const_iterator it = segments_.begin(); it != segments_.end(); ++it) + { + float strokeWidth = 0.1; + + std::string s; + if (it->IsArrow()) + { + s = "marker-end=\"url(#arrowhead)\""; + } + + fprintf(fp, "<line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" stroke=\"%s\" stroke-width=\"%f\" %s/>\n", + it->GetX1() - extent_.GetX1(), it->GetY1() - extent_.GetY1(), + it->GetX2() - extent_.GetX1(), it->GetY2() - extent_.GetY1(), + it->GetColor().c_str(), strokeWidth, s.c_str()); + } + + fprintf(fp, "</svg>\n"); + + fclose(fp); + } +}