freesewing/markdown/dev/tutorials/pattern-design/avoiding-overlap/en.md

title	order
Avoiding overlap	220

While you've only drawn the end of one strap, it's pretty obvious they overlap. Which is a big no-no in sewing patterns, so you're going to have to address that.

Specifically, we're going to rotate our strap out of the way until it no longer overlaps. The rest of your bib should stay as it is, so let's start by making a list of points we need to rotate:

let rotateThese = [
  "edgeTopLeftCp",
  "edgeTop",
  "tipRight",
  "tipRightTop",
  "tipRightTopStart",
  "tipRightTopCp1",
  "tipRightTopCp2",
  "tipRightTopEnd",
  "tipRightBottomStart",
  "tipRightBottomCp1",
  "tipRightBottomCp2",
  "tipRightBottomEnd",
  "tipRightBottom",
  "top",
  "topCp2"
]

Now you can rotate them. How far? Until the strap no longer overlaps:

while (points.tipRightBottomStart.x > -1) {
  for (let p of rotateThese) points[p] = points[p].rotate(1, points.edgeLeft)
}

We're rotating all the points in the rotateThese array around the edgeLeft points. We're using increments of 1 degree until the tipRightBottomStart point is 1mm passed the center of our bib.

While we're at it, let's add a point where the closure's snap should go:

points.snapLeft = points.top.shiftFractionTowards(points.edgeTop, 0.5)

Now let's mirror this on the other side, and replace our neck and rect paths with a new path.