freesewing/packages/brian/src/back.js

import * as shared from "./shared";

export default part => {
  let {
    store,
    sa,
    points,
    Path,
    paths,
    Snippet,
    snippets,
    complete,
    paperless,
    macro
  } = part.shorthand();

  // Seamline
  paths.saBase = shared.saBase("back", points, Path);
  paths.seam = new Path()
    .move(points.cbNeck)
    .line(points.cbHips)
    .join(paths.saBase)
    .attr("class", "fabric");

  // Store lengths to fit sleeve
  store.set("backArmholeLength", shared.armholeLength(points, Path));
  store.set(
    "backShoulderToArmholePitch",
    shared.shoulderToArmholePitch(points, Path)
  );

  // Complete pattern?
  if (complete) {
    macro("cutonfold", {
      from: points.cbNeck,
      to: points.cbHips,
      grainline: true
    });

    macro("title", { at: points.title, nr: 2, title: "back" });
    snippets.armholePitchNotch = new Snippet("bnotch", points.armholePitch);
    if (sa) {
      paths.sa = paths.saBase
        .offset(sa)
        .attr("class", "fabric sa")
        .line(points.cbNeck)
        .move(points.cbHips);
      paths.sa.line(paths.sa.start());
    }
  }

  // Paperless?
  if (paperless) {
    shared.dimensions(macro, points, Path, sa);
    macro("hd", {
      from: points.cbHips,
      to: points.hips,
      y: points.hips.y + sa + 15
    });
    macro("vd", {
      from: points.cbHips,
      to: points.cbNeck,
      x: points.cbHips.x - sa - 15
    });
    macro("hd", {
      from: points.cbNeck,
      to: points.neck,
      y: points.neck.y - sa - 15
    });
    macro("hd", {
      from: points.cbNeck,
      to: points.shoulder,
      y: points.neck.y - sa - 30
    });
  }

  return part;
};