# Semi-circle sunburst (Sunburst example)

> WestCoast Charts 1.1.5, release, public Core release, on npm. HTML: https://westcoast-charts.com/gallery/sunburst/semi-circle/ · Index for agents: https://westcoast-charts.com/llms.txt

Half-circle rings for a compact header chart.

- Chart type: `sunburst` (Sunburst)
- Collection: Sunburst · Sunburst
- Raw configuration: https://westcoast-charts.com/gallery-src/sunburst/semi-circle.js
- Standalone example: https://westcoast-charts.com/embed/samples/wcc/gallery/sunburst/semi-circle.html

## Setup

```js
import WestCoastCharts from 'west-coast-charts'
import types from 'west-coast-charts/types'

WestCoastCharts.use(types)
```

## Options

```js
const options = {
  chart: {
    height: 360,
    fontFamily: "Inter, Geist, \"IBM Plex Sans\", system-ui, sans-serif",
    type: "sunburst",
    toolbar: {
      show: false
    }
  },
  series: [
    {
      name: "Storage TB",
      data: [
        {
          x: "Media",
          children: [
            {
              x: "Video",
              y: 42
            },
            {
              x: "Images",
              y: 18
            },
            {
              x: "Audio",
              y: 6
            }
          ]
        },
        {
          x: "Data",
          children: [
            {
              x: "Warehouse",
              y: 30
            },
            {
              x: "Lake",
              y: 24
            }
          ]
        },
        {
          x: "Backups",
          children: [
            {
              x: "Daily",
              y: 14
            },
            {
              x: "Monthly",
              y: 9
            }
          ]
        }
      ]
    }
  ],
  plotOptions: {
    sunburst: {
      startAngle: -90,
      endAngle: 90,
      innerSize: "42%"
    }
  },
  title: {
    text: "Storage by team (TB)"
  },
  theme: {
    mode: "light",
    preset: "coastal"
  }
}

const chart = new WestCoastCharts(document.querySelector('#chart'), options)
await chart.render()
```

## Verify

- Text check (Library 1.1.5): load `west-coast-charts/agent/describe` and call `chart.describe({ format: "json" })` for the actual drawn state. The live reader is on this example’s HTML page.
- Command line (Public agent tools 0.2.3, tested with Library 1.1.5; available from the versioned GitHub release and npm, https://westcoast-charts.com/docs/cli/index.md): `wcc chart export sunburst-semi-circle.json --out sunburst-semi-circle.svg --with-table` (save the options above as JSON first)