ensureLinearRing method

Implementation

List<LatLng> ensureLinearRing(List<LatLng> pts) {
  List<LatLng> points = [];
  points.addAll(pts);
  if (pts.length >= 3) {
    if (pts.first != pts.last) {
      points.add(pts.first);
    }
  }
  return points;
}