freesewing/packages/examples/src/utils_pointoncurve.js

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

  points.start = new Point(10, 10);
  points.cp1 = new Point(90, 10);
  points.cp2 = new Point(10, 60);
  points.end = new Point(90, 60);

  let scatter = [];
  for (let i = 1; i < 19; i++) {
    for (let j = 1; j < 14; j++) {
      scatter.push(new Point(i * 10, j * 10));
    }
  }
  let snippet;
  for (let point of scatter) {
    if (
      utils.pointOnCurve(
        points.start,
        points.cp1,
        points.cp2,
        points.end,
        point
      )
    ) {
      snippet = "notch";
    } else snippet = "bnotch";
    snippets[part.getId()] = new Snippet(snippet, point);
  }
  paths.curve = new Path()
    .move(points.start)
    .curve(points.cp1, points.cp2, points.end)
    .attr("class", "fabric stroke-lg");

  return part;
};