Before revision: } {\Theta}) space if \Theta<\frac{\pi}{2}. (3) Finally, given a set \mathcal{O} such that \Theta}\ge }}-convex hull of P of minimum (or maximum) area over all \theta\in }[
After revision: } {\Theta}) space if \Theta<\frac{\pi}{2}. (3) Finally, given a set \mathcal{O} such that \Theta}\ge }}_{\theta-convex hull of P of minimum (or maximum) area over all \theta\in }[