@giro3d/giro3d/sources/potree/BoundingBox.js

A JS/WebGL framework for 3D geospatial data visualization

import { Box3, Vector3 } from 'three';
export function toBox3(input) {
  const box = new Box3(new Vector3(input.lx, input.ly, input.lz), new Vector3(input.ux, input.uy, input.uz));
  return box;
}