Add Splom and Parcats trace types - #425
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Add typed scatter-plot-matrix (splom) and parallel-categories (parcats)
traces following the established trace-struct recipe.
- Register PlotType::{Splom, Parcats} (serialize to "splom"/"parcats"),
re-export modules + traces from traces/mod.rs and lib.rs.
- All attributes verified against bundled plotly.js 3.7.0 schema.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Andrei Gherghescu <8067229+andrei-ng@users.noreply.github.com>
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- add extra png's for book TOC Signed-off-by: Andrei Gherghescu <8067229+andrei-ng@users.noreply.github.com>
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Summary
Adds two typed traces to the
plotlycrate, following the established trace-struct recipe (FieldSetterderive +skip_serializing_none, mirroringsankey.rs):Splom<V>— scatter-plot matrix.SplomDimension/SplomAxis/SplomDiagonalsub-structs,showupperhalf/showlowerhalfcontrols, reuses the commonMarker. Plotly.js auto-generates the N×N axis grid, so callers don't assign explicitxaxis/yaxisids.Parcats<V>— parallel categories.ParcatsDimension/ParcatsLinesub-structs,countsper-path weighting (aggregated tuples instead of one row per record), domain-based like Sankey. Enums:ParcatsLineShape,ParcatsArrangement,ParcatsHoverOn,ParcatsSortPaths.Both are additive, non-breaking public API.
Details
PlotType::{Splom, Parcats}serialize to"splom"/"parcats"via the existingrename_all = "lowercase"(same asSankey).traces/mod.rsandlib.rs;CHANGELOG.mdupdated.hovertemplateis trace-level, andarrangementacceptsperpendicular/freeform/fixed(all three included).Note for reviewers
SplomAxis::typereuses the sharedAxisTypeenum, which is slightly wider than splom's documented set (linear/log/date/category) — it also carries-/multicategory. This follows the crate's "reuse common types" convention; happy to introduce a narrower splom-specific enum if you'd prefer.Testing
cargo test -p plotly --features all— all unit + doctests pass (includesto_json()round-trips and runnable doc examples for both traces)cargo clippy --features all -- -D warnings -A deprecated— cleancargo doc— no new warnings🤖 Generated with Claude Code