freesewing/designs/cornelius/src/zipperguard.mjs

import { front } from './front.mjs'

function draftCorneliusZipperguard({
  Point,
  Path,
  points,
  paths,
  Snippet,
  snippets,
  complete,
  sa,
  store,
  paperless,
  macro,
  part,
}) {
  const cc = 0.551915024494 // circle constant

  let halfInch = store.get('halfInch')
  let flyWidth = store.get('flyWidth') * halfInch
  let flyLength = store.get('flyLength')

  points.pA = new Point(0, 0)
  points.pB = points.pA.shift(180, flyWidth)
  points.pC = points.pB.shift(270, flyLength - flyWidth)
  points.pD = points.pA.shift(270, flyLength)
  points.pDcpC = points.pD.shift(180, flyWidth * cc)
  points.pCcpD = points.pC.shift(270, flyWidth * cc)

  paths.seam = new Path()
    .move(points.pA)
    .line(points.pB)
    .line(points.pC)
    .curve(points.pCcpD, points.pDcpC, points.pD)
    .attr('class', 'fabric')

  paths.seam2 = new Path().move(points.pD).line(points.pA).attr('class', 'fabric')

  if (complete) {
    macro('cutonfold', {
      from: points.pD,
      to: points.pA,
    })

    points.logo = points.pA.shiftFractionTowards(points.pC, 0.5)
    snippets.logo = new Snippet('logo', points.logo)
    points.title = points.logo.shift(90, 70)
    macro('title', {
      nr: 4,
      at: points.title,
      title: 'ZipperGuard',
    })
    points.__titleNr.attr('data-text-class', 'center')
    points.__titleName.attr('data-text-class', 'center')
    points.__titlePattern.attr('data-text-class', 'center')

    if (sa) {
      paths.sa = new Path()
        .move(points.pA)
        .line(points.pA.shift(90, sa))
        .join(paths.seam.offset(sa))
        .line(points.pD)
        .attr('class', 'fabric sa')
    }
  }

  // Paperless?
  if (paperless) {
    macro('hd', {
      from: points.pB,
      to: points.pA,
      y: points.pA.y - sa - 15,
    })
    macro('vd', {
      from: points.pA,
      to: points.pD,
      x: points.pA.x + 15,
    })
  }

  return part
}

export const zipperguard = {
  name: 'cornelius.zipperguard',
  after: front,
  draft: draftCorneliusZipperguard,
}