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About
Use it when the chart sits in a marketing page or a summary card and should feel finished rather than technical. The tinted rings frame the shape with barely any lines, which suits a single series; with two overlapping series, the fills start to muddy.
Four concentric circles are each filled with the series color at 20%, so the tint deepens toward the center, and their outlines and the spokes are faded to 20%. The shape on top is filled at 50% with no outline, and the month names sit around the edge.
Installation
Usage
<script lang="ts">
import ChartRadarGridCircleFill from "@/components/charts/chart-radar-grid-circle-fill.svelte";
</script><ChartRadarGridCircleFill />Customize
radialGrid({ fill: "var(--color-desktop)", fillOpacity: 0.2, shape: "circle", strokeOpacity: 0.2 })draws tinted circles with faint outlines.angleGridkeeps its labels and fades its spokes withstrokeOpacity: 0.2.- The
radialAreahasfillOpacity: 0.5and nostroke: no edge, only fill. - The data peaks at 285, so the radius scale stops at 300 here, not 320; the outer ring sits just past February.
- Both the ring fill and the shape read
var(--color-desktop), so one config change recolors the whole chart.
FAQ
How are the rings filled?
radialGrid takes fill and fillOpacity as well as a stroke. Here each circle is filled with the series color at 0.2, so the fills stack and the tint deepens toward the center, and its outline is faded to strokeOpacity: 0.2: the rings read as tinted bands more than lines.
Why are the spokes so faint?
angleGrid draws them at strokeOpacity: 0.2, like the rings' outlines, so the tint carries the grid. Raise it toward 1 to bring the lines forward, or set stroke: "none" to hide them and keep the month labels.
How do I keep the shape readable over the tint?
Each ring is filled at 0.2 and the shape at 0.5, with no outline. Keep the shape well above the grid, or the two blend. Give the radialArea a stroke in its own color and you can lower its fill further.
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.
children?Snippet
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
renderTooltip?Snippet<[ChartTooltipBodySnippetContext]>
A whole tooltip body of your own, in place of ChartTooltipContent: it gets the focused points (each with its datum, group and color). A snippet.
- Type
Snippet<[ChartTooltipBodySnippetContext]>
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
--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?Snippet<[{ index, item, name, value }]>
A row's content in place of its indicator, name and value, as shadcn's formatter: a unit, a currency, a total row. A snippet.
- Type
Snippet<[{ index, item, name, value }]>
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-svelte 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
Radar Chart with Filled Grid
Radar chartsA radar on a filled polygon grid.
Radar Chart with Circle Grid
Radar chartsA radar on circular grid rings instead of polygons.
Radar Chart with Circle Grid, No Lines
Radar chartsCircular grid rings with no spokes from the center.
Radial Chart with Custom Shape
Radial chartsA thick ring with a custom end angle and the total inside.
Donut Chart
Pie chartsA pie with a hollow center: a donut.
Radar Chart
Radar chartsOne series on a polygon grid, six months around the center.