oxml-chart 0.13.1

Format-neutral ChartML modeling, editing, and rendering geometry
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# oxml-chart

Model, edit, serialize, and render format-neutral ChartML with typed chart data
and geometry.

## Capabilities

- Typed axes, series, titles, legends, labels, and seven plot families.
- Chart XML authoring with an editable embedded workbook.
- Backend-neutral chart geometry for document-family renderers.
- Ordered preservation of unmodelled XML around typed edits.
- Sparse caches, explicit axis bounds, mixed plots, labels, and theme-resolved
  series paint remain editable without losing unsupported plot payloads.

## Measured footprint and speed

The archive row is regenerated from the package that carries this README.

| Measurement | Value | Version | Platform | Build mode | Input | Command | Statistic | Measured on |
|---|---|---|---|---|---|---|---|---|
| Crates.io archive: oxml-chart | 102,047 compressed bytes, 659,394 member bytes, 6 members | 0.13.1 | macOS 26.6.2, Apple M5 Max, arm64 | `cargo package --locked --no-verify` | Tracked `oxml-chart` package inventory | `python3 scripts/readme_doctests.py --record-measurements` | gzip archive bytes, tar member bytes, tar member count | 2026-10-04 |

## Use it when

Use this crate when an application needs ChartML models or chart rendering
without depending on DOCX or PPTX APIs. Use `rpptx` for charts inside a
complete presentation.

## Relationship

It uses focused one-sheet SpreadsheetML workbooks from `oxml-sml` and feeds
backend-neutral chart geometry into document-family renderers. It is not a
complete OOXML package editor or a general spreadsheet library.

## Example

```rust,no_run
use oxml_chart::AxisId;

let category_axis = AxisId::new(10_000_001)?;
let value_axis = AxisId::new(10_000_002)?;
assert_ne!(category_axis, value_axis);
# Ok::<(), oxml_chart::ChartError>(())
```

Add `oxml-chart = "0.13.1"` to your dependencies. See the [chart API](https://docs.rs/oxml-chart) for supported plot families.