Function computeBarCategoryStep

src/interaction/findNearestPoint.ts:196–215

(seriesConfigs: ReadonlyArray<ResolvedBarSeriesConfig>)

}

export function computeBarCategoryStep(seriesConfigs: ReadonlyArray<ResolvedBarSeriesConfig>): number {
  const xs: number[] = [];
  for (let s = 0; s < seriesConfigs.length; s++) {
    const data = seriesConfigs[s].data;
    for (let i = 0; i < data.length; i++) {
      const { x } = getPointXY(data[i]);
      if (Number.isFinite(x)) xs.push(x);
    }
  }

  if (xs.length < 2) return 1;
  xs.sort((a, b) => a - b);

  let minStep = Number.POSITIVE_INFINITY;
  for (let i = 1; i < xs.length; i++) {
    const d = xs[i] - xs[i - 1];
    if (d > 0 && d < minStep) minStep = d;
  }
  return Number.isFinite(minStep) && minStep > 0 ? minStep : 1;
}

export function computeCategoryWidthPx(
  seriesConfigs: ReadonlyArray<ResolvedBarSeriesConfig>,