getPolygonOuterCircleCentroid method Null safety
Get the centroid of Outer circle
this centroid is calculated from the distance to the vertices or the polygon.
Implementation
static Point getPolygonOuterCircleCentroid(List<Point> list) {
assert(list.length >= 3);
final n = list.length;
var center = list.reduce((c, n) => Point(c.x + n.x, c.y + n.y));
return Point(center.x / n, center.y / n);
}