Function limitScale

packages/react-photo-view/src/utils/limitTarget.ts:10–12

(scale: number, max: number = 0, buffer: number = 0)

 * 限制最大/最小缩放
 */
export const limitScale = (scale: number, max: number = 0, buffer: number = 0) => {
  return limitNumber(scale, minScale * (1 - buffer), Math.max(maxScale, max) * (1 + buffer));
};