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Charts

Free

Donut Chart with Text

A donut with the total, 1,125 visitors, written in its hollow center, so the card shows the whole and its parts at once. For Solid on TanStack Charts.

Framework
Charting library

Preview

Preview width

About

The donut people reach for first on a dashboard: the parts as a ring, the total in the middle, and nothing else on the card to read. Use it when the sum matters as much as the split. When it doesn't, the plain donut leaves the center quiet.

Five browser slices form a ring with a 60px hole. Centered inside, the total is set large and bold with "Visitors" in muted text under it.

Installation

Sign in to get your install command
Free with an account. It carries your token, so the CLI installs everything in one go.

Usage

import { ChartPieDonutText } from "@/components/charts/chart-pie-donut-text";
<ChartPieDonutText />

Customize

  • The ring is radialArc over pie(chartData, { value: "visitors" }) with innerRadius: 60; two radialText marks at radius 0, on scales of their own, write the center.
  • The total is the rows' sum, formatted with toLocaleString(). Replace the second line, "Visitors", with your unit.
  • fill: "var(--foreground)" and "var(--muted-foreground)" theme the center text with the page, so it switches in dark mode.
  • The total sits on the exact center and dy: 24 drops its label below it; both are decorative, so focus skips them.
  • The tooltip takes { hideLabel: true, valueKey: "visitors" }: one row per slice, named by its z: "browser" key.

FAQ

How is the text placed in the center?

Two radialText marks at the center (angle and radius both () => 0): the total in var(--foreground) at 30px bold, and "Visitors" at 12px in var(--muted-foreground), 24px under it (dy: 24). They sit in a decorative polar() layer of their own, so the pointer reads only the slices.

Where does the total come from?

It's totalVisitors, the sum of chartData's visitors, computed once beside the data, so editing the rows updates it. toLocaleString() adds the thousands separator.

Can the center show the hovered slice instead?

Keep the hovered slice in state through ChartContainer's onFocusChange, which gets the focused point or null, and write its value in place of the total. The definition then depends on that state, so build it reactively.

The number doesn't fit. What do I change?

Change innerRadius: 60 and the two fontSizes together: the number should fit inside the hole with some air. For longer text, a larger hole or a smaller font.

Do screen readers read the total?

Not on its own. The SVG is announced as one image named by the card title, so the center text isn't read. Say the total in text too, through ChartContainer's ariaDescription or in the card's description.

API Reference

ChartContainer

<div> data-slot="chart"

PropType
configChartConfig

Each series' label, icon and color, read by the tooltip and the legend.

definitionChartDefinition

The chart: defineChart(spec, chartTooltip()), its data, marks, scales and axes, and the tooltip's focus.

ariaLabelstring

The chart's accessible name: the card's title.

ariaDescription?string

The chart's accessible description.

class?string

The container's size: aspect-auto h-[250px] w-full, mx-auto aspect-square max-h-[250px]. It's aspect-video by default.

children?JSX.Element

What sits under the chart inside the container: a ChartLegend.

tooltip?ChartTooltipContentProps | false

ChartTooltipContent's props (indicator, hideLabel, formatter…) for the default body, or false for TanStack's own tooltip body.

Type
ChartTooltipContentProps | false
renderTooltip?(context: ChartTooltipBodyRenderContext) => JSX.Element

A whole tooltip body of your own, in place of ChartTooltipContent: it gets the focused points (each with its datum, group and color). Read the context's fields in JSX (context.points), so Solid tracks them.

Type
(context: ChartTooltipBodyRenderContext) => JSX.Element
defaultIndex?number

The category whose tooltip shows before any pointer, as Recharts' defaultIndex.

height?number

A fixed height in pixels for the chart, in place of the container's.

aspectRatio?number

A width-to-height ratio for the chart, in place of the container's height.

initialWidth?number

The width the chart renders at before it's measured.

onFocusChange?(point: ChartPoint | null) => void

Called as the focused point changes: a pointer, a key or a tap.

Type
(point: ChartPoint | null) => void
onFocusGroupChange?(points: readonly ChartPoint[]) => void

Called with every point at the focused category (a stacked or grouped chart's).

Type
(points: readonly ChartPoint[]) => void
onSelect?(point: ChartPoint | null) => void

Called when a point is clicked or picked with Enter.

Type
(point: ChartPoint | null) => void
CSS variableType
--color-<key>?color

Each config key's color (its theme color in light and dark), set on the container: the marks paint with var(--color-<key>).

ChartTooltipContent

<div>

PropType
pointsreadonly ChartPoint[]

The focused points, from the tooltip's context. ChartContainer passes them to its default body; a body of your own passes its context's.

indicator?"dot" | "line" | "dashed"

The indicator's shape beside each row.

Type
"dot" | "line" | "dashed"
Default
"dot"
hideLabel?boolean

Hides the label above the rows (the focused category).

Default
false
hideIndicator?boolean

Hides each row's color indicator.

Default
false
label?string

The label's text in place of the focused category, looked up in config.

labelKey?string

The datum field (or config key) the label is read from, looked up in config.

nameKey?string

The datum field (or config key) each row's series is read from: a pie's browser.

valueKey?string

The datum field each row's value is read from, for points that carry geometry rather than values (a pie's, from pie()).

color?string

One indicator color for every row, in place of each series' own.

labelFormatter?(label: string, points: readonly ChartPoint[]) => string

Formats the label (the config's label or the category), with the rows' points: a date written out, a unit.

Type
(label: string, points: readonly ChartPoint[]) => string
formatter?(value: number | string, name: string, item: ChartTooltipItem, index: number) => JSX.Element

A row's content in place of its indicator, name and value, as shadcn's formatter: a unit, a currency, a total row.

Type
(value: number | string, name: string, item: ChartTooltipItem, index: number) => JSX.Element
class?string

Classes for the tooltip's card.

ChartLegend

<div>

PropType
config?ChartConfig

The series to list: the container's config by default.

keys?readonly string[]

The series keys to list, in order: every key with a color by default.

hideIcon?boolean

Hides each series' icon (from config), leaving its color swatch.

Default
false
verticalAlign?"top" | "bottom"

Above the chart or under it.

Type
"top" | "bottom"
Default
"bottom"
class?string

Classes for the legend's row.

ChartConfig

KeyType
label?string

The series' name in the tooltip and the legend.

icon?Component

An icon beside its name in the legend and the tooltip (a lucide-solid icon).

color?string

Its color in both themes: a token (var(--chart-1)) or any CSS color.

theme?{ light: string; dark: string }

A color for each theme, in place of color.

Helpers

ExportType
chartTooltip?(settings?: ChartTooltipSettings) => ChartDefinitionOptions

defineChart's second argument for a chart with a tooltip: what a pointer or a key focuses (group-x, each category's series, by default), the focus ring, and the host ChartContainer draws its body in.

Type
(settings?: ChartTooltipSettings) => ChartDefinitionOptions
chartTheme?ChartTheme

defineChart's theme in the site's tokens: the text, the grid and the palette (--chart-1 to --chart-5).

chartColors?(config: ChartConfig, keys?: readonly string[]) => { domain: string[]; range: string[] }

defineChart's color: each series key (in config order, or keys') painted var(--color-<key>), for marks with a color channel.

Type
(config: ChartConfig, keys?: readonly string[]) => { domain: string[]; range: string[] }
chartLinearScale?() => LinearScale

A value axis drawn as Recharts draws its default one: zero in the domain, five nice ticks. Pass it as a factory: y: { scale: chartLinearScale }.

Type
() => LinearScale
curveNatural?CurveFactory

D3's natural curve, for a smooth line or area: curve: d3Curve(curveNatural).

curveStep?CurveFactory

D3's step curve, for a line or area that holds each value: curve: d3Curve(curveStep).

curveMonotoneX?CurveFactory

D3's monotone curve, smooth without overshooting a point: curve: d3Curve(curveMonotoneX).

curveLinearClosed?CurveFactory

D3's closed linear curve: a radar's polygon (curve: curveLinearClosed on radialLine and radialArea).

useChart?() => { config: ChartConfig }

The config of the ChartContainer around a component of your own (a custom tooltip body or legend).

Type
() => { config: ChartConfig }