Community
Participate
Working Groups
}
// closing segment
a = points[points.length - 2].x * points[points.length - 1].y
a = points[points.length - 1].x * points[0].y
- points[points.length - 2].y * points[points.length - 1].x;
- points[points.length - 1].y * points[0].x;
sa += a;
cx += (points[points.length - 2].x + points[points.length - 1].x) * a;
cx += (points[points.length - 1].x + points[0].x) * a;
cy += (points[points.length - 2].x + points[points.length - 1].x) * a;
cy += (points[points.length - 1].y + points[0].y) * a;
return new Point(cx / (3 * sa), cy / (3 * sa));
