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About
Use it when the chart has to work without hovering: a printed report, a slide, a screenshot in a doc. Each spoke shows Desktop and Mobile as a pair above the month, so the exact numbers sit beside the shape. With more than two series, the labels get too long; use a table.
Two overlapping shapes, Desktop at 60% and Mobile solid, sit on a polygon grid. Each label reads like 186/80 in the foreground color with the month under it in a muted tone.
Installation
Usage
<script setup lang="ts">
import ChartRadarLabelCustom from "@/components/charts/chart-radar-label-custom.vue";
</script><template>
<ChartRadarLabelCustom />
</template>Customize
- Two
radialTextmarks in adecorativelayer sit on the outer ring (radius: () => 1on their own 0 to 1 scale) withanchor: "outside": one with atextaccessor that joinsdesktopandmobilewith a slash, one withtext: "month". dystacks them (values above, month below) andradiusOffset: 8moves them clear of the outer ring.angleGrid({ labels: false })keeps the spokes and leaves the labeling to the text marks.inset: 10keeps room for the labels inside the square, and the first label'sdyraises it 10 pixels so it clears the top.- The labels paint with
var(--foreground)andvar(--muted-foreground), so they follow the theme.
FAQ
How are the two-line labels drawn?
Two radialText marks, in a decorative layer of their own, sit on the outer ring with anchor: "outside". One prints desktop/mobile in the foreground color; the other prints the month in the muted color. dy sets them on two lines, and radiusOffset pushes both past the edge.
How do I change what the labels say?
Change the text accessor of the values mark. It receives the row and returns a string, so it can join other fields, format the numbers, or add a unit.
Why is the radar smaller than the others?
Labels outside the radius need room. Each layer takes inset: 10 (Recharts' 10-pixel margin) before radiusRatio: 0.8, where the other radars take 5, and the top label is raised 10 pixels to clear the edge. Raise the offset or the ratio and the top label clips.
API Reference
ChartContainer
<div> data-slot="chart"
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.
@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
--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>
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>
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
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
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 }
Related
Multiple Radar Chart
Radar chartsTwo series overlaid on the same radar grid.
Radar Chart with Radius Axis
Radar chartsA radar with its radius axis and values drawn on a spoke.
Radar Chart with Legend
Radar chartsTwo radar series with a legend naming them.
Bar Chart with Custom Labels
Bar chartsHorizontal bars with the name inside each bar and the value after it.
Line Chart with Custom Labels
Line chartsEach point labeled with its category's name, in its color.
Radar Chart
Radar chartsOne series on a polygon grid, six months around the center.