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RadialChart renders each data item as a concentric ring, with length proportional to its value. Like PieChart, it uses data_key for numeric values and name_key for labels. Adjust inner_radius to control how tight the rings are.

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Basic Usage

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Tight Rings

Increase inner_radius to push rings outward, creating a tighter radial layout.

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Semicircle

Adjust start_angle and end_angle to render rings as a partial arc instead of a full circle. For example, start_angle=90 and end_angle=-270 produces a semicircle opening to the right.

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API Reference

RadialChart Parameters

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data
list[dict] | str
required
Data as a list of dicts, or a {{ field }} interpolation reference.
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data_key
str
required
The data field containing numeric values to plot as ring lengths.
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name_key
str
required
The data field containing labels for each ring.
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height
int
default:"300"
Chart height in pixels.
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inner_radius
int
default:"30"
Inner radius in pixels. Increase to push rings outward.
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start_angle
int
default:"180"
Starting angle in degrees for the radial layout.
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end_angle
int
default:"0"
Ending angle in degrees for the radial layout.
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show_legend
bool
default:"False"
Show a legend below the chart.
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show_tooltip
bool
default:"True"
Show tooltips on hover.
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css_class
str | None
default:"None"
Additional Tailwind CSS classes.

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Protocol Reference

RadialChart
{
  "type": "RadialChart",
  "data": "Action[] | string (required)",
  "dataKey": "string (required)",
  "nameKey": "string (required)",
  "height?": "300",
  "innerRadius?": 30,
  "startAngle?": "180",
  "endAngle?": 0,
  "showLegend?": false,
  "showTooltip?": true,
  "cssClass?": "string"
}
For the complete protocol schema, see RadialChart.