b101a8e266
The offset curve extractor is already quite usable, though singular cases are still not covered yet when the offset curve intersects or nearly intersects a Voronoi vertex. Removal of the PRINTF_ZU "%zu" Visual Studio printf compatibility macro. Fixes of a contours self intersection test for collinear segments. SVG exporter now exports white background, so that the GNOME Eye viewer is usable.
381 lines
14 KiB
C++
381 lines
14 KiB
C++
#include "SVG.hpp"
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#include <iostream>
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#include <boost/nowide/cstdio.hpp>
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#define COORD(x) (unscale<float>((x))*10)
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namespace Slic3r {
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bool SVG::open(const char* afilename)
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{
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this->filename = afilename;
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this->f = boost::nowide::fopen(afilename, "w");
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if (this->f == NULL)
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return false;
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fprintf(this->f,
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"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n"
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.0//EN\" \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n"
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"<svg height=\"2000\" width=\"2000\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:svg=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n"
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" <marker id=\"endArrow\" markerHeight=\"8\" markerUnits=\"strokeWidth\" markerWidth=\"10\" orient=\"auto\" refX=\"1\" refY=\"5\" viewBox=\"0 0 10 10\">\n"
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" <polyline fill=\"darkblue\" points=\"0,0 10,5 0,10 1,5\" />\n"
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" </marker>\n"
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);
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fprintf(this->f, "<rect fill='white' stroke='none' x='0' y='0' width='%f' height='%f'/>\n", 2000.f, 2000.f);
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return true;
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}
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bool SVG::open(const char* afilename, const BoundingBox &bbox, const coord_t bbox_offset, bool aflipY)
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{
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this->filename = afilename;
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this->origin = bbox.min - Point(bbox_offset, bbox_offset);
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this->flipY = aflipY;
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this->f = boost::nowide::fopen(afilename, "w");
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if (f == NULL)
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return false;
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float w = COORD(bbox.max(0) - bbox.min(0) + 2 * bbox_offset);
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float h = COORD(bbox.max(1) - bbox.min(1) + 2 * bbox_offset);
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fprintf(this->f,
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"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n"
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"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.0//EN\" \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n"
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"<svg height=\"%f\" width=\"%f\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:svg=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n"
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" <marker id=\"endArrow\" markerHeight=\"8\" markerUnits=\"strokeWidth\" markerWidth=\"10\" orient=\"auto\" refX=\"1\" refY=\"5\" viewBox=\"0 0 10 10\">\n"
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" <polyline fill=\"darkblue\" points=\"0,0 10,5 0,10 1,5\" />\n"
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" </marker>\n",
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h, w);
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fprintf(this->f, "<rect fill='white' stroke='none' x='0' y='0' width='%f' height='%f'/>\n", w, h);
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return true;
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}
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void
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SVG::draw(const Line &line, std::string stroke, coordf_t stroke_width)
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{
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fprintf(this->f,
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" <line x1=\"%f\" y1=\"%f\" x2=\"%f\" y2=\"%f\" style=\"stroke: %s; stroke-width: %f\"",
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COORD(line.a(0) - origin(0)), COORD(line.a(1) - origin(1)), COORD(line.b(0) - origin(0)), COORD(line.b(1) - origin(1)), stroke.c_str(), (stroke_width == 0) ? 1.f : COORD(stroke_width));
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if (this->arrows)
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fprintf(this->f, " marker-end=\"url(#endArrow)\"");
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fprintf(this->f, "/>\n");
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}
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void SVG::draw(const ThickLine &line, const std::string &fill, const std::string &stroke, coordf_t stroke_width)
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{
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Vec2d dir(line.b(0)-line.a(0), line.b(1)-line.a(1));
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Vec2d perp(-dir(1), dir(0));
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coordf_t len = sqrt(perp(0)*perp(0) + perp(1)*perp(1));
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coordf_t da = coordf_t(0.5)*line.a_width/len;
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coordf_t db = coordf_t(0.5)*line.b_width/len;
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fprintf(this->f,
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" <polygon points=\"%f,%f %f,%f %f,%f %f,%f\" style=\"fill:%s; stroke: %s; stroke-width: %f\"/>\n",
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COORD(line.a(0)-da*perp(0)-origin(0)),
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COORD(line.a(1)-da*perp(1)-origin(1)),
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COORD(line.b(0)-db*perp(0)-origin(0)),
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COORD(line.b(1)-db*perp(1)-origin(1)),
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COORD(line.b(0)+db*perp(0)-origin(0)),
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COORD(line.b(1)+db*perp(1)-origin(1)),
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COORD(line.a(0)+da*perp(0)-origin(0)),
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COORD(line.a(1)+da*perp(1)-origin(1)),
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fill.c_str(), stroke.c_str(),
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(stroke_width == 0) ? 1.f : COORD(stroke_width));
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}
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void
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SVG::draw(const Lines &lines, std::string stroke, coordf_t stroke_width)
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{
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for (Lines::const_iterator it = lines.begin(); it != lines.end(); ++it)
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this->draw(*it, stroke, stroke_width);
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}
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void
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SVG::draw(const IntersectionLines &lines, std::string stroke)
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{
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for (IntersectionLines::const_iterator it = lines.begin(); it != lines.end(); ++it)
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this->draw((Line)*it, stroke);
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}
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void
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SVG::draw(const ExPolygon &expolygon, std::string fill, const float fill_opacity)
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{
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this->fill = fill;
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std::string d;
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Polygons pp = expolygon;
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for (Polygons::const_iterator p = pp.begin(); p != pp.end(); ++p) {
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d += this->get_path_d(*p, true) + " ";
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}
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this->path(d, true, 0, fill_opacity);
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}
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void
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SVG::draw_outline(const ExPolygon &expolygon, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
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{
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draw_outline(expolygon.contour, stroke_outer, stroke_width);
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for (Polygons::const_iterator it = expolygon.holes.begin(); it != expolygon.holes.end(); ++ it) {
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draw_outline(*it, stroke_holes, stroke_width);
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}
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}
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void
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SVG::draw(const ExPolygons &expolygons, std::string fill, const float fill_opacity)
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{
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for (ExPolygons::const_iterator it = expolygons.begin(); it != expolygons.end(); ++it)
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this->draw(*it, fill, fill_opacity);
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}
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void
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SVG::draw_outline(const ExPolygons &expolygons, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
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{
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for (ExPolygons::const_iterator it = expolygons.begin(); it != expolygons.end(); ++ it)
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draw_outline(*it, stroke_outer, stroke_holes, stroke_width);
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}
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void
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SVG::draw(const Surface &surface, std::string fill, const float fill_opacity)
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{
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draw(surface.expolygon, fill, fill_opacity);
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}
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void
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SVG::draw_outline(const Surface &surface, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
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{
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draw_outline(surface.expolygon, stroke_outer, stroke_holes, stroke_width);
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}
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void
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SVG::draw(const Surfaces &surfaces, std::string fill, const float fill_opacity)
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{
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for (Surfaces::const_iterator it = surfaces.begin(); it != surfaces.end(); ++it)
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this->draw(*it, fill, fill_opacity);
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}
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void
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SVG::draw_outline(const Surfaces &surfaces, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
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{
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for (Surfaces::const_iterator it = surfaces.begin(); it != surfaces.end(); ++ it)
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draw_outline(*it, stroke_outer, stroke_holes, stroke_width);
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}
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void
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SVG::draw(const SurfacesPtr &surfaces, std::string fill, const float fill_opacity)
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{
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for (SurfacesPtr::const_iterator it = surfaces.begin(); it != surfaces.end(); ++it)
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this->draw(*(*it), fill, fill_opacity);
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}
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void
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SVG::draw_outline(const SurfacesPtr &surfaces, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
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{
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for (SurfacesPtr::const_iterator it = surfaces.begin(); it != surfaces.end(); ++ it)
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draw_outline(*(*it), stroke_outer, stroke_holes, stroke_width);
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}
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void
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SVG::draw(const Polygon &polygon, std::string fill)
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{
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this->fill = fill;
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this->path(this->get_path_d(polygon, true), !fill.empty(), 0, 1.f);
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}
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void
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SVG::draw(const Polygons &polygons, std::string fill)
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{
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for (Polygons::const_iterator it = polygons.begin(); it != polygons.end(); ++it)
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this->draw(*it, fill);
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}
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void
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SVG::draw(const Polyline &polyline, std::string stroke, coordf_t stroke_width)
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{
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this->stroke = stroke;
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this->path(this->get_path_d(polyline, false), false, stroke_width, 1.f);
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}
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void
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SVG::draw(const Polylines &polylines, std::string stroke, coordf_t stroke_width)
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{
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for (Polylines::const_iterator it = polylines.begin(); it != polylines.end(); ++it)
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this->draw(*it, stroke, stroke_width);
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}
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void SVG::draw(const ThickLines &thicklines, const std::string &fill, const std::string &stroke, coordf_t stroke_width)
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{
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for (ThickLines::const_iterator it = thicklines.begin(); it != thicklines.end(); ++it)
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this->draw(*it, fill, stroke, stroke_width);
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}
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void
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SVG::draw(const ThickPolylines &polylines, const std::string &stroke, coordf_t stroke_width)
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{
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for (ThickPolylines::const_iterator it = polylines.begin(); it != polylines.end(); ++it)
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this->draw((Polyline)*it, stroke, stroke_width);
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}
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void
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SVG::draw(const ThickPolylines &thickpolylines, const std::string &fill, const std::string &stroke, coordf_t stroke_width)
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{
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for (ThickPolylines::const_iterator it = thickpolylines.begin(); it != thickpolylines.end(); ++ it)
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draw(it->thicklines(), fill, stroke, stroke_width);
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}
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void
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SVG::draw(const Point &point, std::string fill, coord_t iradius)
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{
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float radius = (iradius == 0) ? 3.f : COORD(iradius);
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std::ostringstream svg;
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svg << " <circle cx=\"" << COORD(point(0) - origin(0)) << "\" cy=\"" << COORD(point(1) - origin(1))
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<< "\" r=\"" << radius << "\" "
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<< "style=\"stroke: none; fill: " << fill << "\" />";
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fprintf(this->f, "%s\n", svg.str().c_str());
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}
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void
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SVG::draw(const Points &points, std::string fill, coord_t radius)
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{
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for (Points::const_iterator it = points.begin(); it != points.end(); ++it)
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this->draw(*it, fill, radius);
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}
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void
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SVG::draw(const ClipperLib::Path &polygon, double scale, std::string stroke, coordf_t stroke_width)
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{
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this->stroke = stroke;
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this->path(this->get_path_d(polygon, scale, true), false, stroke_width, 1.f);
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}
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void
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SVG::draw(const ClipperLib::Paths &polygons, double scale, std::string stroke, coordf_t stroke_width)
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{
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for (ClipperLib::Paths::const_iterator it = polygons.begin(); it != polygons.end(); ++ it)
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draw(*it, scale, stroke, stroke_width);
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}
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void
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SVG::draw_outline(const Polygon &polygon, std::string stroke, coordf_t stroke_width)
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{
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this->stroke = stroke;
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this->path(this->get_path_d(polygon, true), false, stroke_width, 1.f);
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}
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void
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SVG::draw_outline(const Polygons &polygons, std::string stroke, coordf_t stroke_width)
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{
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for (Polygons::const_iterator it = polygons.begin(); it != polygons.end(); ++ it)
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draw_outline(*it, stroke, stroke_width);
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}
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void
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SVG::path(const std::string &d, bool fill, coordf_t stroke_width, const float fill_opacity)
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{
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float lineWidth = 0.f;
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if (! fill)
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lineWidth = (stroke_width == 0) ? 2.f : COORD(stroke_width);
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fprintf(
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this->f,
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" <path d=\"%s\" style=\"fill: %s; stroke: %s; stroke-width: %f; fill-type: evenodd\" %s fill-opacity=\"%f\" />\n",
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d.c_str(),
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fill ? this->fill.c_str() : "none",
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this->stroke.c_str(),
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lineWidth,
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(this->arrows && !fill) ? " marker-end=\"url(#endArrow)\"" : "",
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fill_opacity
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);
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}
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std::string
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SVG::get_path_d(const MultiPoint &mp, bool closed) const
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{
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std::ostringstream d;
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d << "M ";
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for (Points::const_iterator p = mp.points.begin(); p != mp.points.end(); ++p) {
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d << COORD((*p)(0) - origin(0)) << " ";
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d << COORD((*p)(1) - origin(1)) << " ";
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}
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if (closed) d << "z";
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return d.str();
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}
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std::string
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SVG::get_path_d(const ClipperLib::Path &path, double scale, bool closed) const
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{
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std::ostringstream d;
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d << "M ";
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for (ClipperLib::Path::const_iterator p = path.begin(); p != path.end(); ++p) {
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d << COORD(scale * p->X - origin(0)) << " ";
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d << COORD(scale * p->Y - origin(1)) << " ";
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}
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if (closed) d << "z";
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return d.str();
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}
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void SVG::draw_text(const Point &pt, const char *text, const char *color)
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{
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fprintf(this->f,
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"<text x=\"%f\" y=\"%f\" font-family=\"sans-serif\" font-size=\"20px\" fill=\"%s\">%s</text>",
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COORD(pt(0)-origin(0)),
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COORD(pt(1)-origin(1)),
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color, text);
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}
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void SVG::draw_legend(const Point &pt, const char *text, const char *color)
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{
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fprintf(this->f,
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"<circle cx=\"%f\" cy=\"%f\" r=\"10\" fill=\"%s\"/>",
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COORD(pt(0)-origin(0)),
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COORD(pt(1)-origin(1)),
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color);
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fprintf(this->f,
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"<text x=\"%f\" y=\"%f\" font-family=\"sans-serif\" font-size=\"10px\" fill=\"%s\">%s</text>",
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COORD(pt(0)-origin(0)) + 20.f,
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COORD(pt(1)-origin(1)),
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"black", text);
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}
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void
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SVG::Close()
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{
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fprintf(this->f, "</svg>\n");
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fclose(this->f);
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this->f = NULL;
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// printf("SVG written to %s\n", this->filename.c_str());
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}
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void SVG::export_expolygons(const char *path, const BoundingBox &bbox, const Slic3r::ExPolygons &expolygons, std::string stroke_outer, std::string stroke_holes, coordf_t stroke_width)
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{
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SVG svg(path, bbox);
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svg.draw(expolygons);
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svg.draw_outline(expolygons, stroke_outer, stroke_holes, stroke_width);
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svg.Close();
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}
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void SVG::export_expolygons(const char *path, const std::vector<std::pair<Slic3r::ExPolygons, ExPolygonAttributes>> &expolygons_with_attributes)
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{
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if (expolygons_with_attributes.empty())
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return;
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BoundingBox bbox = get_extents(expolygons_with_attributes.front().first);
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for (size_t i = 0; i < expolygons_with_attributes.size(); ++ i)
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bbox.merge(get_extents(expolygons_with_attributes[i].first));
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SVG svg(path, bbox);
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for (const auto &exp_with_attr : expolygons_with_attributes)
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svg.draw(exp_with_attr.first, exp_with_attr.second.color_fill, exp_with_attr.second.fill_opacity);
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for (const auto &exp_with_attr : expolygons_with_attributes) {
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std::string color_contour = exp_with_attr.second.color_contour;
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if (color_contour.empty())
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color_contour = exp_with_attr.second.color_fill;
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std::string color_holes = exp_with_attr.second.color_holes;
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if (color_holes.empty())
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color_holes = color_contour;
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svg.draw_outline(exp_with_attr.first, color_contour, color_holes, exp_with_attr.second.outline_width);
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}
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for (const auto &exp_with_attr : expolygons_with_attributes)
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if (exp_with_attr.second.radius_points > 0)
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for (const ExPolygon &expoly : exp_with_attr.first)
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svg.draw((Points)expoly, exp_with_attr.second.color_points, exp_with_attr.second.radius_points);
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svg.Close();
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}
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}
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