Function resolveRadiiCss

src/renderers/createPieRenderer.ts:103–121

(
  radius: PieRadius | undefined,
  maxRadiusCss: number
)

): radius is readonly [inner: number | string, outer: number | string] => Array.isArray(radius);

const resolveRadiiCss = (
  radius: PieRadius | undefined,
  maxRadiusCss: number
): { readonly inner: number; readonly outer: number } => {
  // Default similar to common chart libs.
  if (radius == null) return { inner: 0, outer: maxRadiusCss * 0.7 };

  if (isRadiusTuple(radius)) {
    const inner = parseNumberOrPercent(radius[0], maxRadiusCss);
    const outer = parseNumberOrPercent(radius[1], maxRadiusCss);
    const innerCss = Math.max(0, Number.isFinite(inner) ? inner! : 0);
    const outerCss = Math.max(innerCss, Number.isFinite(outer) ? outer! : maxRadiusCss * 0.7);
    return { inner: innerCss, outer: Math.min(maxRadiusCss, outerCss) };
  }

  const outer = parseNumberOrPercent(radius, maxRadiusCss);
  const outerCss = Math.max(0, Number.isFinite(outer) ? outer! : maxRadiusCss * 0.7);
  return { inner: 0, outer: Math.min(maxRadiusCss, outerCss) };
};

const computePlotScissorDevicePx = (
  gridArea: GridArea