Table 2. Node selection table for new sixteen-directional search method.

Angle α	Retained node	Removed node
11.25°–33.75°	1,2,3,13,14,15,16	4,5,6,7,8,9,10,11,12
33.75°–56.25°	1,2,3,4,14,15,16	5,6,7,8,9,10,11,12,13
56.25°–78.75°	1,2,3,4,5,15,16	6,7,8,9,10,11,12,13,14
78.75°–101.25°	1,2,3,4,5,6,16	7,8,9,10,11,12,13,14,15
101.25°–123.75°	1,2,3,4,5,6,7	8,9,10,11,12,13,14,15,16
123.75°–146.25°	2,3,4,5,6,7,8	1,9,10,11,12,13,14,15,16
146.25°–168.75°	3,4,5,6,7,8,9	1,2,10,11,12,13,14,15,16
168.75°–191.25°	4,5,6,7,8,9,10	1,2,3,11,12,13,14,15,16
191.25°–213.75°	5,6,7,8,9,10,11	1,2,3,4,12,13,14,15,16
213.75°–236.25°	6,7,8,9,10,11,12	1,2,3,4,5,13,14,15,16
236.75°–258.75°	7,8,9,10,11,12,13	1,2,3,4,5,6,14,15,16
258.75°–281.25°	8,9,10,11,12,13,14	1,2,3,4,5,6,7,15,16
281.25°–303.75°	9,10,11,12,13,14,15	1,2,3,4,5,6,7,8,16
303.75°–326.25°	10,11,12,13,14,15,16	1,9,2,3, 4,5,6,7,8
326.26°–348.75°	1,11,12,13,14,15	2,3,4,5,6,7,8,9,10
348.75°–360°U0°–11.25°	1,2,12,13,14,15	3,4,5,6,7,8,9,10,11