Fig. 6

General definition of zones n with multiple polygons m for one spatial characteristic, \({Z}_{{ch}_{1},{n}_{m}}\). For example, the Zone \({Z}_{{ch}_{1},{2}_{3}}\) represents the zone n = 2 with characteristic 1, ch1, with polygons m = 3.

General definition of zones n with multiple polygons m for one spatial characteristic, \({Z}_{{ch}_{1},{n}_{m}}\). For example, the Zone \({Z}_{{ch}_{1},{2}_{3}}\) represents the zone n = 2 with characteristic 1, ch1, with polygons m = 3.