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Charts

Free

Radar Chart with Dots

Q: How are the dots drawn?

A radialDot mark sits on top of the radialArea, in a decorative(polar(…)) layer of its own that shares the shape's frame and reads the same rows with the same angle: "month" and radius: "desktop". r: 4 sets the size and fill: "var(--color-desktop)" the color, so each dot lands exactly on a corner of the shape.

Q: How do I make the dots bigger or smaller?

Change r on the radialDot mark. 4 suits six spokes; go down to 2 or 3 when you have many categories, up to 6 to make a few values stand out. Past that, dots on neighboring spokes start to touch.

Q: Can the dots be a different color from the shape?

Give the dot mark its own fill, another var(--chart-N) for instance, and a stroke with strokeWidth for a ring around each one. The shape keeps var(--color-desktop).

Q: How do I enlarge the dot under the pointer?

chartTooltip({ focus: focusGroupAngle, focusRing: true }) already puts a dot on the focused month, the same size as the others. Pass a ring of your own to grow it: focusRing: { radius: 3, strokeWidth: 6 } paints a solid 6px dot in the series color.

A radar with a solid dot on every value, so each month's reading stands out from the filled shape. One series in Vue, drawn with TanStack Charts.

PreviewCode

About

Pick this one over the plain radar when people read individual values, not only the outline: a dot marks where each month actually lands, so small differences between neighbors are easier to see. It also helps when the grid is light or missing.

The shape is the same six-month polygon at 60% fill, with a solid dot of radius 4 on each corner in the series color, over polygon rings and spokes.

Installation

Free with an account. It carries your token, so the CLI installs everything in one go.

Google GitHub

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Usage

<script setup lang="ts">
import ChartRadarDots from "@/components/charts/chart-radar-dots.vue";
</script>

<template>
  <ChartRadarDots />
</template>

Customize

Two marks share the rows: a radialArea for the shape and a radialDot for the markers, both with angle: "month" and radius: "desktop". Keep the two channel pairs in step when you change fields.
The dots are their own decorative(polar(…)) layer after the shape's, sharing its frame (inset, radiusRatio, scales): they paint on top, and the pointer and the tooltip read only the shape.
Both marks paint with var(--color-desktop), the variable ChartContainer writes from chartConfig.desktop.
focusRing: true in chartTooltip() draws a dot on the focused month; pass { radius, strokeWidth } instead to make it larger than the plain dots.

FAQ

How are the dots drawn?

A radialDot mark sits on top of the radialArea, in a decorative(polar(…)) layer of its own that shares the shape's frame and reads the same rows with the same angle: "month" and radius: "desktop". r: 4 sets the size and fill: "var(--color-desktop)" the color, so each dot lands exactly on a corner of the shape.

How do I make the dots bigger or smaller?

Change r on the radialDot mark. 4 suits six spokes; go down to 2 or 3 when you have many categories, up to 6 to make a few values stand out. Past that, dots on neighboring spokes start to touch.

Can the dots be a different color from the shape?

Give the dot mark its own fill, another var(--chart-N) for instance, and a stroke with strokeWidth for a ring around each one. The shape keeps var(--color-desktop).

How do I enlarge the dot under the pointer?

chartTooltip({ focus: focusGroupAngle, focusRing: true }) already puts a dot on the focused month, the same size as the others. Pass a ring of your own to grow it: focusRing: { radius: 3, strokeWidth: 6 } paints a solid 6px dot in the series color.

Does the chart work with the keyboard?

Yes. Tab into the chart and the arrow keys step around the spokes in order, with the tooltip showing the focused month and its value. The dots are where the eye lands, but focus works the same without them.

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.

#default?slot

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

tooltip?(ChartTooltipContentOptions & { class?: string }) | false

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

Type: (ChartTooltipContentOptions & { class?: string }) | false

#tooltip?slot (ChartTooltipBodySlotContext)

A whole tooltip body of your own, in place of ChartTooltipContent: it gets the focused points (each with its datum, group and color). A scoped slot.

Type: slot (ChartTooltipBodySlotContext)

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.

EventType

@focus-change?(point: ChartPoint | null) => void

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

Type: (point: ChartPoint | null) => void

@focus-group-change?(points: readonly ChartPoint[]) => void

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

Type: (points: readonly ChartPoint[]) => void

@select?(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?slot ({ value, item, index })

A row's content in place of its indicator, name and value, as shadcn's formatter: a unit, a currency, a total row. A scoped slot; the row's series key is item.key.

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-vue-next 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 }

Radar Chart
Radar charts
One series on a polygon grid, six months around the center.
Radar Chart with Circle Grid
Radar charts
A radar on circular grid rings instead of polygons.
Radar Chart without Grid
Radar charts
A radar shape with no grid behind it.
Line Chart with Dots
Line charts
A line with a dot on every data point.
Radar Chart with Lines Only
Radar charts
Two radar series as outlines only, no fill.
Multiple Radar Chart
Radar charts
Two series overlaid on the same radar grid.

All 70 charts

Preview

About

Installation

Usage

Customize

FAQ

How are the dots drawn?

How do I make the dots bigger or smaller?

Can the dots be a different color from the shape?

How do I enlarge the dot under the pointer?

Does the chart work with the keyboard?

API Reference

ChartContainer

ChartTooltipContent

ChartLegend

ChartConfig

Helpers

Related

Radar Chart

Radar Chart with Circle Grid

Radar Chart without Grid

Line Chart with Dots

Radar Chart with Lines Only

Multiple Radar Chart