freesewing/packages/ursula/src/front.js

export default function (part) {
  let {
    options,
    Point,
    Path,
    points,
    paths,
    measurements,
//    Snippet,
//    snippets,
    store,
    utils,
    complete,
    sa,
    paperless,
    macro,
  } = part.shorthand()

  // Stretch utility method

  store.set('xScale', utils.stretchToScale(options.fabricStretch))

  // Design pattern here

  // Create points

  points.frontWaistMid = new Point(measurements.seat / 4, 0)
  points.frontWaistLeft = new Point(measurements.seat / 4 - measurements.waist / 4 * store.get('xScale'), 0)
  points.frontHipLeft = new Point(measurements.seat / 4 - measurements.seat / 4 * store.get('xScale'), measurements.waistToSeat) // Consider renaming from "hip" to "seat"
  points.frontGussetLeft = new Point((measurements.seat / 4) - (measurements.waist * options.gussetWidth) * store.get('xScale') / 1.2, measurements.waistToUpperLeg)
  points.frontGussetMid = new Point(measurements.seat / 4, measurements.waistToUpperLeg)

  /* Flip points to right side */
  points.frontGussetRight = points.frontGussetLeft.flipX(points.frontWaistMid)
  points.frontHipRight = points.frontHipLeft.flipX(points.frontWaistMid)
  points.frontWaistRight = points.frontWaistLeft.flipX(points.frontWaistMid)

  /* Waist band is based on waist at top, hip at bottom */
  points.frontWaistBandLeft = points.frontHipLeft.shiftFractionTowards(points.frontWaistLeft, options.rise)
  points.frontWaistBandRight = points.frontWaistBandLeft.flipX(points.frontWaistMid)
  points.frontWaistBandMid = points.frontWaistBandLeft.shiftFractionTowards(points.frontWaistBandRight, 0.5)
    .shift(270,measurements.waistToUpperLeg * options.frontDip) /* Waist band dip */

  /* Leg opening is based on waist band and hip */
//  points.frontLegOpeningLeft = points.frontHipLeft.shiftFractionTowards(points.frontWaistBandLeft, options.legOpening) // Waist band side point
//  points.frontLegOpeningRight = points.frontLegOpeningLeft.flipX(points.frontWaistMid) // Waist band side point

///////////// Replace the point it's shifting towards with a beamsIntersect() of the
///////////// side (frontWaistLeft and frontHipLeft) and the lowest point of the waistband (backWaistBandMid
///////////// and backWaistBandLeftCp1 should work)
///////////// or maybe beamIntersectsY() of backWaistBandMid.y  ??

  points.frontLegOpeningLeft = points.frontHipLeft.shiftFractionTowards(points.frontWaistBandLeft, options.legOpening) // Waist band low point
  points.frontLegOpeningRight = points.frontLegOpeningLeft.flipX(points.frontWaistMid) // Waist band low point

  /* Middle point for label */
  points.frontMidMid = points.frontLegOpeningLeft.shiftFractionTowards(points.frontLegOpeningRight, 0.5)

  // Create control points

  /* Control points for leg opening curves */
  points.frontLegOpeningLeftCp1 = points.frontLegOpeningLeft
    .shift(180, points.frontGussetLeft.dy(points.frontLegOpeningLeft)/3);
  points.frontGussetLeftCp1 = points.frontGussetLeft
//    .shift(270, points.frontGussetLeft.dy(points.frontHipLeft) * 4 * options.taperToGusset); // Consider changing this so it's relative
    .shift(270, points.frontGussetLeft.dy(points.frontWaistBandMid) * options.taperToGusset);

  /* Control point for waistband dip */
  points.frontWaistBandLeftCp1 = new Point(points.frontWaistBandRight.x / 3, points.frontWaistBandMid.y)

  /* Flip control points to right side */
  points.frontGussetRightCp1 = points.frontGussetLeftCp1.flipX(points.frontWaistMid)
  points.frontLegOpeningRightCp1 = points.frontLegOpeningLeftCp1.flipX(points.frontWaistMid)
  points.frontWaistBandRightCp1 = points.frontWaistBandLeftCp1.flipX(points.frontWaistMid)

  // Draw paths

  paths.seam = new Path()
    .move(points.frontWaistBandMid)
    .curve(points.frontWaistBandLeftCp1, points.frontWaistBandLeft, points.frontWaistBandLeft) // Waist band dip
    .line(points.frontLegOpeningLeft)
    .curve(points.frontLegOpeningLeftCp1, points.frontGussetLeftCp1, points.frontGussetLeft)
    .line(points.frontGussetMid)
    .line(points.frontGussetRight)
    .curve(points.frontGussetRightCp1, points.frontLegOpeningRightCp1, points.frontLegOpeningRight)
    .line(points.frontWaistBandRight)
    .curve(points.frontWaistBandRight, points.frontWaistBandRightCp1, points.frontWaistBandMid) // Waist band dip
    .close()
    .attr('class', 'fabric')

  // Store points for use in other parts

  /* Store side seam points for use in back */

  store.set('sideSeamWaist', points.frontWaistBandLeft)
  store.set('sideSeamHip', points.frontLegOpeningLeft)

  /* Store gusset points for use in gusset */

  store.set('frontGussetLeft', points.frontGussetLeft)
  store.set('frontGussetRight', points.frontGussetRight)
  store.set('frontGussetMid', points.frontGussetMid)

  /* Store lengths for use in elastic */

  store.set(
    'frontLegOpeningLength',
    new Path()
      .move(points.frontGussetRight)
      .curve(points.frontGussetRightCp1, points.frontLegOpeningRightCp1, points.frontLegOpeningRight)
      .length()
  )
  store.set(
    'frontWaistBandLength',
    new Path()
      .move(points.frontWaistBandRight)
      .curve(points.frontWaistBandRightCp1, points.frontWaistBandLeftCp1, points.frontWaistBandLeft)
      .length()
  )

  // Complete?
  if (complete) {

    if (sa) {
      paths.sa = paths.seam.offset(sa).attr('class', 'fabric sa')
    }
  }

  macro('title', {
    at: points.frontMidMid,
    nr: 1,
    title: 'front',
  })

  macro("grainline", {
    from: points.frontGussetMid,
    to: points.frontGussetMid.shiftFractionTowards(points.frontWaistBandMid, 0.5),
  })

  // Paperless?
  if (paperless) {
    macro('hd', {
      from: points.frontWaistBandRight,
      to: points.frontWaistBandLeft,
      y: points.frontWaistBandRight.y + sa - 15,
    })
    macro('hd', {
      from: points.frontLegOpeningRight,
      to: points.frontLegOpeningLeft,
      y: points.frontLegOpeningRight.y + sa - 15,
    })
    macro('hd', {
      from: points.frontGussetLeft,
      to: points.frontGussetRight,
      y: points.frontGussetLeft.y + sa + 15,
    })
    macro('vd', {
      from: points.frontWaistBandMid,
      to: points.frontGussetMid,
      x: points.frontWaistBandMid.x + sa + 15,
    })
    macro('ld', {
      from: points.frontWaistBandLeft,
      to: points.frontLegOpeningLeft,
      d: points.frontWaistBandLeft.y + sa - 15
    })
    macro('pd', {
      path: new Path()
        .move(points.frontGussetRight)
        .curve(points.frontGussetRightCp1, points.frontLegOpeningRightCp1, points.frontLegOpeningRight),
      d:  15
    })
/*    macro('vd', {
      from: points.frontWaistBandLeft,
      to: points.frontWaistBandMid,
      x: points.frontWaistBandMid.x + sa + 15,
    }) */
  }

  return part
}