chartRadarGridCustom

A Charts block/component from shadcn/ui — clean-room reimplemented for Domphy (see methodology). Call chartRadarGridCustom() with no arguments for a working demo, or edit the code below live.

Implementation notes

Single polygon ring at a configurable fraction of the plot radius (default 0.75, chosen for a 'roughly mid-to-outer' look in this port's own 200-unit viewBox - the spec's upstream absolute ~90px figure doesn't map 1 onto a differently-sized coordinate space, so an own-judgment proportional value was used instead), no radial spokes.

Status: ported · Reference: shadcn/ui original

// shadcn/ui "charts/radar-grid-custom" recipe — clean-room reimplementation.
//
// A stripped-down grid: just one thin polygon ring at a fixed (roughly
// mid-to-outer) radius, no radial spoke lines, deliberately understated so
// the data shape reads as the dominant visual element. Minimal, value-only
// hover tooltip.
//
// Implemented purely from the block's public functional/visual spec — no
// upstream shadcn/ui source was viewed or copied.

import type { DomphyElement } from "@domphy/core";
import { chartTrendFooter, type ChartTrendDirection } from "./chart-area-shared.js";
import {
  RADAR_SINGLE_SERIES,
  RADAR_MONTHLY_SINGLE_DATA,
  createRadarTooltip,
  radarCardShell,
  renderRadarChart,
  type RadarPoint,
  type RadarSeriesConfig,
} from "./chart-radar-shared.js";

export interface ChartRadarGridCustomProps {
  data?: RadarPoint[];
  series?: RadarSeriesConfig[];
  title?: string;
  description?: string;
  trendText?: string;
  trendDirection?: ChartTrendDirection;
  captionText?: string;
  ringFraction?: number;
  showSpokes?: boolean;
}

/**
 * shadcn/ui "charts/radar-grid-custom" recipe — a single-series radar chart
 * over a single custom ring. Call with no arguments for a working demo.
 */
function chartRadarGridCustom(props: ChartRadarGridCustomProps = {}): DomphyElement<"div"> {
  const {
    data = RADAR_MONTHLY_SINGLE_DATA,
    series = RADAR_SINGLE_SERIES,
    title = "Radar Chart - Grid Custom",
    description = "January - June 2026",
    trendText = "Trending up by 5.2% this month",
    trendDirection = "up",
    captionText = "Showing total visitors for the last 6 months",
    ringFraction = 0.75,
    showSpokes = false,
  } = props;

  const tooltip = createRadarTooltip();

  return radarCardShell({
    title,
    description,
    content: {
      div: [
        renderRadarChart({
          data,
          series,
          tooltip,
          gridRingFractions: [ringFraction],
          gridShowSpokes: showSpokes,
          tooltipShowLabel: false,
          tooltipIndicator: "none",
        }),
      ],
    },
    footer: chartTrendFooter({ trendText, direction: trendDirection, captionText }),
  });
}

export { chartRadarGridCustom };

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chartRadarGridCustom#

chartRadarGridCustom