mirror of
https://github.com/MaSzyna-EU07/maszyna.git
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a083269867
Drop-in copy of C:\Users\maj00r\Projects\maj0sted-master minus its web/ directory - the WASM frontend is not being ported, the editor drives the same C++ API natively. What is left is plain C++20 with no dependencies: domain model (niweleta, plan and profile geometry, fitting, parallelism), project serialization, rail sampling and the editor document. src/web/ribbon.cpp was missing from the library source list; added, since without it the ribbon symbols never make it into the archive.
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
// A simple visual check tool: build a niweleta, fit a compound curve with
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// transition curves between the two straights, apply it, and write the plan to
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// an SVG file you can open in a browser.
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//
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// Usage: plan_to_svg [output.svg] (default: plan.svg)
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//
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// The reusable pieces are render::sample() (geometry -> polylines) and
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// io::to_svg(). A different GUI would call render::sample() and paint itself.
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#include <cstdio>
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#include <fstream>
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#include <string>
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#include "maj0sted/io/svg_writer.hpp"
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#include "maj0sted/maj0sted.hpp"
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#include "maj0sted/render/plan_sampler.hpp"
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using namespace maj0sted::domain;
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int main(int argc, char** argv) {
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MapProject project;
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// Two straights forming a 90-degree corner.
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Niweleta niweleta{NiweletaId{1}, "Demo"};
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const StraightId entry =
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niweleta.add_straight(CartesianPosition{0.0, 0.0}, CartesianPosition{300.0, 0.0});
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const StraightId exit = niweleta.add_straight(
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CartesianPosition{300.0, 0.0}, CartesianPosition{300.0, 300.0},
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JointContinuity::AzimuthBreak);
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// A compound curve R120 -> R80 with clothoids at the ends and between arcs.
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const CompoundFitParameters params{
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.entry = entry,
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.exit = exit,
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.entry_transition = Length::from_metres(30.0),
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.exit_transition = Length::from_metres(30.0),
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.arcs = {CompoundArc{Radius::from_metres(120.0), Length::from_metres(60.0),
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Length::from_metres(25.0)},
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CompoundArc{Radius::from_metres(80.0)}}};
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const FitResult fit = FittingService::fit_compound(niweleta, params);
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niweleta.apply_fit(fit);
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project.add_niweleta(std::move(niweleta));
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const maj0sted::render::Scene scene = maj0sted::render::sample(project);
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const std::string svg = maj0sted::io::to_svg(scene);
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const std::string path = (argc > 1) ? argv[1] : "plan.svg";
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std::ofstream out(path);
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if (!out) {
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std::fprintf(stderr, "cannot write %s\n", path.c_str());
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return 1;
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}
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out << svg;
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std::printf("wrote %s (%zu polylines) — open it in a browser\n", path.c_str(),
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scene.polylines.size());
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return 0;
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}
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