@thi.ng/grid-iterators/zcurve.js

2D grid and shape iterators w/ multiple orderings

import { ceilPow2 } from "@thi.ng/binary/pow";
import { demux2 } from "@thi.ng/morton/mux";
import { __opts } from "./utils.js";
function* zcurve2d(opts) {
  const { cols, rows, tx } = __opts(opts);
  const max = ceilPow2(Math.pow(Math.max(cols, rows), 2));
  for (let i = 0; i < max; i++) {
    const [x, y] = demux2(i);
    if (x < cols && y < rows) {
      yield tx(x, y);
    }
  }
}
export {
  zcurve2d
};