freesewing/packages/examples/src/path_intersects.js

export default part => {
  let { Point, points, Path, paths, Snippet, snippets } = part.shorthand();

  points.A = new Point(45, 60);
  points.B = new Point(10, 30);
  points.BCp2 = new Point(40, 20);
  points.C = new Point(90, 30);
  points.CCp1 = new Point(50, -30);
  points.D = new Point(50, 130);
  points.DCp1 = new Point(150, 30);

  points._A = new Point(55, 40);
  points._B = new Point(0, 55);
  points._BCp2 = new Point(40, -20);
  points._C = new Point(90, 40);
  points._CCp1 = new Point(50, -30);
  points._D = new Point(40, 120);
  points._DCp1 = new Point(180, 40);

  paths.demo1 = new Path()
    .move(points.A)
    .line(points.B)
    .curve(points.BCp2, points.CCp1, points.C)
    .curve(points.DCp1, points.DCp1, points.D);
  paths.demo2 = new Path()
    .move(points._A)
    .line(points._B)
    .curve(points._BCp2, points._CCp1, points._C)
    .curve(points._DCp1, points._DCp1, points._D);

  for (let p of paths.demo1.intersects(paths.demo2)) {
    snippets[part.getId()] = new Snippet("notch", p);
  }

  return part;
};