Function upperBoundXObject

src/core/createRenderCoordinator.ts:749–759

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

};

const upperBoundXObject = (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;
};

const sliceVisibleRangeByX = (data: ReadonlyArray<DataPoint>, xMin: number, xMax: number): ReadonlyArray<DataPoint> => {
  const n = data.length;