# Multi-series treemap (Treemap example)

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

Two series laid out as groups.

- Chart type: `treemap` (Treemap)
- Collection: Treemap · Treemap
- Raw configuration: https://westcoast-charts.com/gallery-src/treemap/multi-dimensional.js
- Standalone example: https://westcoast-charts.com/embed/samples/wcc/gallery/treemap/multi-dimensional.html

## Setup

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

## Options

```js
const options = {
  chart: {
    height: 380,
    fontFamily: "Inter, Geist, \"IBM Plex Sans\", system-ui, sans-serif",
    type: "treemap",
    toolbar: {
      show: false
    }
  },
  series: [
    {
      name: "Desktop",
      data: [
        {
          x: "Chrome",
          y: 104
        },
        {
          x: "Edge",
          y: 54
        },
        {
          x: "Firefox",
          y: 71
        },
        {
          x: "Safari",
          y: 233
        }
      ]
    },
    {
      name: "Mobile",
      data: [
        {
          x: "Chrome",
          y: 165
        },
        {
          x: "Safari",
          y: 173
        },
        {
          x: "Samsung",
          y: 188
        },
        {
          x: "Other",
          y: 93
        }
      ]
    }
  ],
  legend: {
    show: true
  },
  title: {
    text: "Sessions by browser and platform"
  },
  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 treemap-multi-dimensional.json --out treemap-multi-dimensional.svg --with-table` (save the options above as JSON first)