@thi.ng/vectors/rotate-around-point.js

Optimized 2d/3d/4d and arbitrary length vector operations, support for memory mapping/layouts

import { setC2 } from "./setc.js";
const rotateAroundPoint2 = (out, v, p, theta) => {
  const x = v[0] - p[0];
  const y = v[1] - p[1];
  const s = Math.sin(theta);
  const c = Math.cos(theta);
  return setC2(out || v, x * c - y * s + p[0], x * s + y * c + p[1]);
};
export {
  rotateAroundPoint2
};