BarChart

BarChart maps categories on a band scale and groups series side-by-side. Heights animate with a spring when motion is enabled.

Usage

import { BarChart } from "@hewnui/ui";

<BarChart
  summary="Tickets by status"
  series={[
    {
      id: "open",
      label: "Open",
      data: [
        { x: "Mon", y: 4 },
        { x: "Tue", y: 6 },
        { x: "Wed", y: 3 },
      ],
    },
  ]}
>
  <BarChart.Tooltip />
</BarChart>

Accessibility

• The SVG is role="img" named by the required summary, which is also rendered as an sr-only caption
• Every bar is focusable and labelled "{series}: {category}, {value}", so the data is reachable with Tab alone
• Focus opens the same tooltip as hover, and blur closes it
• Axis ticks and gridlines are aria-hidden — the summary carries the comparison
• status="loading" and status="empty" announce through role="status"; status="error" uses role="alert"