utils.lineIntersectsCurve()

The utils.lineIntersectsCurve() function finds the intersection between a line segment from point from to point to and a curve described by points start, cp1, cp2, and end`.

warning

This function can sometimes fail to find intersections in some curves due to a limitation in an underlying Bézier library. Please see Bug #3367 for more information.

Signature

array | false utils.lineIntersectsCurve(
  Point from,
  Point to,
  Point start,
  Point cp1,
  Point cp2,
  Point end
)

Example

Preview

Code

({ Point, points, Path, paths, Snippet, snippets, getId, utils, part }) => {

  points.A = new Point(10, 10)
  points.Acp = new Point(310, 40)
  points.B = new Point(110, 70)
  points.Bcp = new Point(-210, 40)
  points.E = new Point(20, -5)
  points.D = new Point(100, 85)
  paths.curve = new Path()
    .move(points.A)
    .curve(points.Acp, points.Bcp, points.B)
  paths.line = new Path().move(points.E).line(points.D)

  for (let p of utils.lineIntersectsCurve(
    points.D,
    points.E,
    points.A,
    points.Acp,
    points.Bcp,
    points.B
  )) {
    snippets[getId()] = new Snippet("notch", p)
  }

  return part
}

X-Ray

A Utils.lineIntersectsCurve() example