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Charts

Free

Radar Chart with Filled Grid

A radar on filled polygon rings that echo its own shape, the grid lines faded. One series in Solid, the backdrop tinted in the series color.

Framework
Charting library

Preview

Preview width

About

Use it when the radar should read as one solid object: a profile card, a feature summary. The tinted hexagons behind the shape repeat its angles, so the whole chart feels of a piece. For a softer, rounder look, the filled circle grid does the same with circles.

Four polygon rings are each tinted with the series color at 20%, so the tint deepens toward the center, and their outlines are faded to 20%. The data shape sits on top at 50% with no edge.

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 { ChartRadarGridFill } from "@/components/charts/chart-radar-grid-fill";
<ChartRadarGridFill />

Customize

  • radialGrid({ fill: "var(--color-desktop)", fillOpacity: 0.2, shape: "polygon", strokeOpacity: 0.2 }) draws the tinted bands.
  • angleGrid fades its spokes with strokeOpacity: 0.2 and keeps the month labels.
  • The shape is a radialArea at fillOpacity: 0.5 with no stroke, so it has no edge.
  • This data tops out at 285, so the radius scale runs from 0 to 300.

FAQ

How is the polygon grid filled?

The polygon radialGrid takes fill: "var(--color-desktop)" and fillOpacity: 0.2, with strokeOpacity: 0.2, so the bands show as color and the lines barely show.

Filled polygons or filled circles?

A filled polygon grid repeats the angles of the data, so the backdrop and the shape agree. The filled circles contrast round with angular instead. Swap with shape: "circle" on the same guide and decide by eye.

How do I keep the data visible against the fill?

Keep the shape's fillOpacity well above the grid's: 0.5 against 0.2 here. If you add a second series, lighten the grid to 0.1 or drop its fill, or the overlapping tints turn muddy.

Does it adapt to dark mode?

Yes. The fill and the shape both read var(--color-desktop), which follows --chart-1 from light to dark. The labels use var(--muted-foreground).

How do I change the bands?

Pass values to radialGrid, in radius units. Without them it rings the radius scale's ticks: 75, 150, 225 and 300 here on a 0 to 300 scale. Fewer values give fewer, wider bands.

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 }