swaits
8cf518200a
Adds heuropt-plot, a tiny SVG-only plotter that takes heuropt results and emits scatter plots (pareto_front_svg) and line plots (convergence_svg). No heavy 'plotters' or 'tiny-skia' dep — hand- rolled SVG so the crate adds <100 KB to a build. Workspace setup: root Cargo.toml gains [workspace] with members = ['.', 'heuropt-plot']. heuropt-plot has its own version (0.1.0) and publishes independently against heuropt 0.7+. Adds examples/visualize.rs that wires it all up: NSGA-II on Schaffer N.1, observer closure recording per-generation hypervolume, two SVGs written to disk.
47 lines
1.4 KiB
Markdown
47 lines
1.4 KiB
Markdown
# heuropt-plot
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[](https://crates.io/crates/heuropt-plot)
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[](https://docs.rs/heuropt-plot)
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[](../LICENSE)
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Lightweight SVG plotting helpers for [`heuropt`](https://crates.io/crates/heuropt)
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results.
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Hand-rolled SVG output (no `plotters`, no `tiny-skia`, no
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heavyweight dependency) so adding `heuropt-plot` to your project
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costs ~20 KB of compiled code.
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## What's in the box
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- `pareto_front_svg` — render a 2-objective Pareto front as an SVG
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scatter plot with axes and labels.
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- `convergence_svg` — render a "best fitness so far" trace as an
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SVG line plot.
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Output is a `String` of valid SVG. Write it to a file, embed it in
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HTML, or pipe it to a browser.
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## Example
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```rust
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use heuropt::prelude::*;
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use heuropt_plot::pareto_front_svg;
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let space = ObjectiveSpace::new(vec![
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Objective::minimize("f1"),
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Objective::minimize("f2"),
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]);
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let front = vec![
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Candidate::new((), Evaluation::new(vec![0.0, 1.0])),
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Candidate::new((), Evaluation::new(vec![0.5, 0.5])),
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Candidate::new((), Evaluation::new(vec![1.0, 0.0])),
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];
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let svg = pareto_front_svg(&front, &space, 600, 400, "Sample front");
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std::fs::write("front.svg", svg).unwrap();
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```
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## License
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MIT — see [LICENSE](../LICENSE) at the repo root.
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