Function normalizeDomain

src/ChartGPU.ts:347–368

(
  minCandidate: number,
  maxCandidate: number
)

};

const normalizeDomain = (
  minCandidate: number,
  maxCandidate: number
): { readonly min: number; readonly max: number } => {
  let min = minCandidate;
  let max = maxCandidate;

  if (!Number.isFinite(min) || !Number.isFinite(max)) {
    min = 0;
    max = 1;
  }

  if (min === max) {
    max = min + 1;
  } else if (min > max) {
    const t = min;
    min = max;
    max = t;
  }

  return { min, max };
};

type CartesianHitTestMatch = Readonly<{
  kind: 'cartesian';