@thi.ng/rasterize/polyline.js

Headless 2D shape drawing, filling & rasterization for arbitrary targets/purposes (no canvas required)

import { ensureShader2D } from "./checks.js";
import { drawLine } from "./line.js";
const drawPolyLine = (grid, pts, val, closed = false) => {
  val = ensureShader2D(val);
  const n = pts.length;
  let [i, j] = closed ? [0, n - 1] : [1, 0];
  for (; i < n; j = i, i++) {
    const a = pts[j];
    const b = pts[i];
    drawLine(grid, a[0], a[1], b[0], b[1], val);
  }
};
export {
  drawPolyLine
};