@thi.ng/vectors/setcs.js

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

const setCS2 = (out, x, y, io = 0, so = 1) => {
  !out && (out = []);
  out[io] = x;
  out[io + so] = y;
  return out;
};
const setCS3 = (out, x, y, z, io = 0, so = 1) => {
  !out && (out = []);
  out[io] = x;
  out[io + so] = y;
  out[io + 2 * so] = z;
  return out;
};
const setCS4 = (out, x, y, z, w, io = 0, so = 1) => {
  !out && (out = []);
  out[io] = x;
  out[io + so] = y;
  out[io + 2 * so] = z;
  out[io + 3 * so] = w;
  return out;
};
export {
  setCS2,
  setCS3,
  setCS4
};