public bool intersect(LineSegment other, out Vector2 ptr)
{
if (Ccw(other.p1) * Ccw(other.p2) < -1e-4 &&
other.Ccw(p1) * other.Ccw(p2) < -1e-4)
{
ptr = GetLine.GetIntersection(other.GetLine);
return true;
}
ptr = new Vector2();
return false;
}
