Method SplitAt

path_intersection.go:318–331

(z Point)

}

func (s *SweepPoint) SplitAt(z Point) (*SweepPoint, *SweepPoint) {
	// split segment at point
	r := boPointPool.Get().(*SweepPoint)
	l := boPointPool.Get().(*SweepPoint)
	*r, *l = *s.other, *s
	r.Point, l.Point = z, z
	r.end, l.end = false, false

	// update references
	r.other, s.other.other = s, l
	l.other, s.other = s.other, r
	l.node = nil
	return r, l
}

func (s *SweepPoint) Reverse() {
	s.left, s.other.left = !s.left, s.left