Function computeRawBoundsFromData

src/ChartGPU.ts:186–210

(data: ReadonlyArray<DataPoint>)

};

const computeRawBoundsFromData = (data: ReadonlyArray<DataPoint>): Bounds | null => {
  let xMin = Number.POSITIVE_INFINITY;
  let xMax = Number.NEGATIVE_INFINITY;
  let yMin = Number.POSITIVE_INFINITY;
  let yMax = Number.NEGATIVE_INFINITY;

  for (let i = 0; i < data.length; i++) {
    const { x, y } = getPointXY(data[i]!);
    if (!Number.isFinite(x) || !Number.isFinite(y)) continue;
    if (x < xMin) xMin = x;
    if (x > xMax) xMax = x;
    if (y < yMin) yMin = y;
    if (y > yMax) yMax = y;
  }

  if (!Number.isFinite(xMin) || !Number.isFinite(xMax) || !Number.isFinite(yMin) || !Number.isFinite(yMax)) {
    return null;
  }

  // Keep bounds usable for downstream scale derivation.
  if (xMin === xMax) xMax = xMin + 1;
  if (yMin === yMax) yMax = yMin + 1;

  return { xMin, xMax, yMin, yMax };
};

const extendBoundsWithDataPoints = (bounds: Bounds | null, points: ReadonlyArray<DataPoint>): Bounds | null => {
  if (points.length === 0) return bounds;