Function lowerBoundObject

src/interaction/findNearestPoint.ts:442–455

(
  data: ReadonlyArray<ObjectPoint>,
  xTarget: number,
)

};

const lowerBoundObject = (
  data: ReadonlyArray<ObjectPoint>,
  xTarget: number,
): number => {
  let lo = 0;
  let hi = data.length;
  while (lo < hi) {
    const mid = (lo + hi) >>> 1;
    const x = data[mid].x;
    if (x < xTarget) lo = mid + 1;
    else hi = mid;
  }
  return lo;
};

/**
 * Finds the nearest data point to the given cursor position across all series.