Function inferPlotHeightPxForBarHitTesting

src/interaction/findNearestPoint.ts:351–369

(
  seriesConfigs: ReadonlyArray<ResolvedBarSeriesConfig>,
  yScale: LinearScale,
)

};

export function inferPlotHeightPxForBarHitTesting(
  seriesConfigs: ReadonlyArray<ResolvedBarSeriesConfig>,
  yScale: LinearScale,
): number {
  // We don't have direct access to the scale range endpoints, so infer the plot height in range-space.
  // In the common ChartGPU interaction setup, yScale.range(plotHeightCss, 0), so max(scaledY) should
  // approximate plotHeightCss (or be <= plotHeightCss if axis min/max are overridden).
  let maxY = 0;
  for (let s = 0; s < seriesConfigs.length; s++) {
    const data = seriesConfigs[s].data;
    for (let i = 0; i < data.length; i++) {
      const { y } = getPointXY(data[i]);
      if (!Number.isFinite(y)) continue;
      const py = yScale.scale(y);
      if (Number.isFinite(py) && py > maxY) maxY = py;
    }
  }
  return Math.max(0, maxY);
}

export function computeBaselineDomainAndPx(
  seriesConfigs: ReadonlyArray<ResolvedBarSeriesConfig>,