Cross Product and Partitioned Filtering-Based Graham Convex Hull for Buoy Drifting Area Demarcating

Figure 7

Convex hull of buoy position points. (a) 4#. (b) 5#. (c) 6#. (d) 8#. (e) 9#. (f) 10#. (g) 13#. (h) 14#.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)