@thi.ng/rasterize/line.js

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

import { lineClipped } from "@thi.ng/grid-iterators/line";
import { __draw2D } from "./draw.js";
const drawLine = (grid, x1, y1, x2, y2, val) => __draw2D(
  lineClipped(x1, y1, x2, y2, 0, 0, grid.size[0], grid.size[1]),
  grid,
  val
);
const traceLine = (grid, x1, y1, x2, y2, fn) => {
  const pts = lineClipped(x1, y1, x2, y2, 0, 0, grid.size[0], grid.size[1]);
  if (pts) {
    for (let p of pts) fn(p);
  }
  return grid;
};
export {
  drawLine,
  traceLine
};