Function computeZoomInOutAnchorRatio

src/ChartGPU.ts:691–695

(range: ZoomRange, center: number)

  };

  const computeZoomInOutAnchorRatio = (range: ZoomRange, center: number): number => {
    const span = range.end - range.start;
    if (!Number.isFinite(span) || span === 0) return 0.5;
    return clamp((center - range.start) / span, 0, 1);
  };

  const createCoordinatorZoomStateLike = (): ZoomState => {
    const getRange: ZoomState['getRange'] = () => coordinator?.getZoomRange() ?? { start: 0, end: 100 };