getPolygonOuterCircle method Null safety
Get the outer circle
formed by the outer centroid of the polygon and its radius
Implementation
static Circle getPolygonOuterCircle(List<Point> list) {
assert(list.length >= 3);
final centroid = getPolygonOuterCircleCentroid(list);
final radius = centroid.distanceTo(list.first);
return Circle(radius: radius, center: centroid);
}