freesewing/packages/examples/src/path_shiftalong.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);

  paths.example = new Path()
    .move(points.A)
    .line(points.B)
    .curve(points.BCp2, points.CCp1, points.C);

  points.x1 = paths.example
    .shiftAlong(20)
    .attr("data-text", "2cm")
    .attr("data-text-class", "center fill-note")
    .attr("data-text-lineheight", 6);
  points.x2 = paths.example
    .shiftAlong(90)
    .attr("data-text", "9cm")
    .attr("data-text-class", "center fill-note")
    .attr("data-text-lineheight", 6);

  snippets.x1 = new Snippet("notch", points.x1);
  snippets.x2 = new Snippet("notch", points.x2);

  return part;
};