freesewing/markdown/dev/tutorials/pattern-design/drawing-the-bib-outline/en.md

title	order
Drawing the bib outline	190

With our neck opening in place, let's draw the basic outline of our bib:

let width = measurements.head * options.widthRatio
let length = measurements.head * options.lengthRatio

points.topLeft = new Point(
  width / -2,
  points.top.y - (width / 2 - points.right.x)
);
points.topRight = points.topLeft.shift(0, width)
points.bottomLeft = points.topLeft.shift(-90, length)
points.bottomRight = points.topRight.shift(-90, length)

paths.rect = new Path()
  .move(points.topLeft)
  .line(points.bottomLeft)
  .line(points.bottomRight)
  .line(points.topRight)
  .line(points.topLeft)
  .close()

First thing we did was create the width and length variables to save ourselves some typing:

let width = measurements.head * options.widthRatio
let length = measurements.head * options.lengthRatio

Both the length and width of your bib are a factor of the head circumference. This way, your bib size will adapt to the size of the baby, and the user can tweak the length and width by playing with the options you added to the pattern.

Once we have our variables, we're adding some new points, and a second path called rect.

points.topLeft = new Point(
  width / -2,
  points.top.y - (width / 2 - points.right.x)
)
points.topRight = points.topLeft.shift(0, width)
points.bottomLeft = points.topLeft.shift(-90, length)
points.bottomRight = points.topRight.shift(-90, length)

paths.rect = new Path()
  .move(points.topLeft)
  .line(points.bottomLeft)
  .line(points.bottomRight)
  .line(points.topRight)
  .line(points.topLeft)
  .close()

We're calculating the topLeft point so that the top edge of our bib and the sides are equidistant from the neck neck opening.

You didn't have to do that. But it looks nicely balanced this way: