shadcn Radar Chart - Radius Axis

import { defineChart, type ChartPoint } from '@tanstack/charts'
import {
  focusGroupAngle,
  polar,
  radialArea,
  radialGrid,
} from '@tanstack/charts/polar'
import { RendererChart } from '@tanstack/charts/react/tooltip'
import { tooltip } from '@tanstack/charts/tooltip'
import { motion } from '@tanstack/charts/motion'
import { scaleLinear, scalePoint } from 'd3-scale'
import { curveLinearClosed } from 'd3-shape'
import { shadcnColors, shadcnRadarMultiple } from '@tanstack/charts-data/shadcn'
import './styles.css'
const twoSeries = ['desktop', 'mobile'] as const
export function createExampleChart() {
  const rows = shadcnRadarMultiple
  const months = rows.map((row) => row.month)
  const radiusMax = 320
  const guides = [
    radialGrid({
      values: [0, 80, 160, 240, 320],
      shape: 'polygon',
      stroke: 'var(--border)',
      strokeOpacity: 1,
      ...{
        labels: true,
        labelAngle: Math.PI / 6,
        labelFill: 'var(--foreground)',
        labelFontSize: 12,
        labelRotate: 30,
        labelOffset: 1,
      },
    }),
  ]
  return defineChart(
    {
      marks: [
        polar({
          radiusRatio: 0.76,
          scales: {
            angle: { scale: scalePoint<string>().domain(months), wrap: true },
            radius: { scale: scaleLinear().domain([0, radiusMax]) },
          },

          guides,
          marks: [
            radialArea(rows, {
              id: 'desktop-radar',
              className: 'ts-chart__radar',
              angle: 'month',
              radius: 'desktop',
              key: 'month',
              z: () => 'desktop',
              curve: curveLinearClosed,
              fill: shadcnColors[0],
              fillOpacity: 0.6,
              stroke: shadcnColors[0],
              strokeOpacity: 1,
              strokeWidth: 1,
            }),
            radialArea(rows, {
              id: 'mobile-radar',
              className: 'ts-chart__radar',
              angle: 'month',
              radius: 'mobile',
              key: 'month',
              z: () => 'mobile',
              curve: curveLinearClosed,
              fill: shadcnColors[1],
              fillOpacity: 1,
              stroke: shadcnColors[1],
              strokeWidth: 1,
            }),
          ],
        }),
      ],
      scales: {
        x: null,
        y: null,
      },
      color: { domain: twoSeries, range: shadcnColors.slice(0, 2) },
      margin: 0,
    },
    {
      svgAnimation: false,
      focus: focusGroupAngle,
      tooltip: {
        use: tooltip,
        className: 'sc-chart-tooltip',
        anchor: 'group-center',
        placement: 'auto',
        sort: 'color-domain',
        content: (points) => shadcnTooltipContent(points),
      },
    },
  )
}
function shadcnTooltipContent<TDatum>(points: readonly ChartPoint<TDatum>[]) {
  return {
    title: String(points[0]?.xValue ?? ''),
    rows: points.map((point) => ({
      label: titleCase(
        String(
          point.group ??
            point.markId.replace(
              /-?(bars|lines|areas|slices|values|radar)$/u,
              '',
            ),
        ),
      ),
      value: Number(point.yValue ?? point.xValue ?? 0).toLocaleString('en-US'),
      color: point.color,
    })),
  }
}
function titleCase(value: string) {
  return value.charAt(0).toUpperCase() + value.slice(1)
}
export const definition = createExampleChart()
const renderer = motion({
  initial: 'always',
  transition: { type: 'spring', stiffness: 170, damping: 18, mass: 1 },
})
export interface ExampleProps {
  width?: number
  height?: number
}
export default function Example({ width = 640, height = 600 }: ExampleProps) {
  const contentWidth = Math.max(1, width - 50)
  const chartWidth = Math.min(250, contentWidth)
  const chartHeight = chartWidth
  return (
    <div className="sc-example" style={{ width, height }}>
      <article className="sc-card sc-default" style={{ width }}>
        <header className="sc-card-header" style={{ paddingBottom: 16 }}>
          <div className="sc-card-heading">
            <h2>Radar Chart - Radius Axis</h2>
            <p>Showing total visitors for the last 6 months</p>
          </div>
        </header>
        <div className="sc-card-content sc-centered">
          <div
            className="sc-chart"
            style={{ width: chartWidth, height: chartHeight }}
          >
            <RendererChart
              definition={definition}
              renderer={renderer}
              initialWidth={chartWidth}
              height={chartHeight}
              ariaLabel="Radar Chart - Radius Axis"
            />
          </div>
        </div>
        <footer className="sc-card-footer sc-centered">
          <TrendFooter note="January - June 2024" />
        </footer>
      </article>
    </div>
  )
}
function TrendFooter({ note }: { note: string }) {
  return (
    <>
      <div className="sc-trend">
        Trending up by 5.2% this month{' '}
        <svg viewBox="0 0 24 24" aria-hidden="true">
          <path d="m3 17 6-6 4 4 8-8" />
          <path d="M14 7h7v7" />
        </svg>
      </div>
      <div className="sc-footer-note">{note}</div>
    </>
  )
}

.sc-example {
  --background: oklch(1 0 0);
  --foreground: oklch(0 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --border: oklch(0.922 0 0);
  --chart-1: oklch(0.809 0.105 251.813);
  --chart-2: oklch(0.623 0.214 259.815);
  --chart-3: oklch(0.546 0.245 262.881);
  --chart-4: oklch(0.488 0.243 264.376);
  --chart-5: oklch(0.424 0.199 265.638);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: hidden;
  color: var(--foreground);
  background: var(--background);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  text-rendering: geometricPrecision;
}
:root[data-theme='dark'] .sc-example {
  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0);
  --card-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --border: oklch(1 0 0 / 10%);
  --chart-1: oklch(0.809 0.105 251.813);
  --chart-2: oklch(0.623 0.214 259.815);
  --chart-3: oklch(0.546 0.245 262.881);
  --chart-4: oklch(0.488 0.243 264.376);
  --chart-5: oklch(0.424 0.199 265.638);
}
.sc-example,
.sc-example * {
  box-sizing: border-box;
}
.sc-card {
  display: flex;
  flex-direction: column;
  gap: 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  color: var(--card-foreground);
  padding: 24px 0;
}
.sc-card-header {
  display: grid;
  gap: 8px;
  padding: 0 24px;
}
.sc-card-heading {
  display: grid;
  gap: 8px;
}
.sc-card-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
}
.sc-card-header p {
  margin: 0;
  color: var(--muted-foreground);
  font-size: 14px;
  line-height: 20px;
}
.sc-card-content {
  display: flex;
  min-height: 0;
  flex-direction: column;
  padding: 0 24px;
}
.sc-chart {
  position: relative;
  flex: none;
}
.sc-chart > * {
  display: block;
}
.sc-card-footer {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 0 24px;
  font-size: 14px;
  line-height: 1;
}
.sc-centered {
  justify-content: center;
  align-items: center;
  text-align: center;
}
.sc-trend {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}
.sc-trend svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sc-footer-note {
  color: var(--muted-foreground);
}
.sc-example .ts-chart {
  color: var(--muted-foreground);
}
.sc-example .ts-chart__grid line,
.sc-example .ts-chart__polar-grid path,
.sc-example .ts-chart__polar-grid line {
  stroke: var(--border);
}
.sc-example .ts-chart__axes text,
.sc-example .ts-chart__polar-grid text {
  fill: var(--muted-foreground);
  font-size: 12px;
}
.sc-example .ts-chart-tooltip {
  min-width: 128px;
  padding: 7px 10px !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
  background: var(--card) !important;
  color: var(--card-foreground) !important;
  box-shadow: 0 2px 6px rgb(0 0 0 / 8%);
  font-size: 12px;
}