ZoneTopologyEnumeration

Zones are of arbitrary shape and may overlap.

Zones are arranged as a tiled honeycomb of regular polygons (e.g. Hexagons, squares etc. The zones are contiguous and do not overlap.

Zones are arranged in rings . The nested inner zones are included in any containing outer zones.

Zones are arranged in tiled hollow rings. The area of any immediately nested zone is excluded from the containing outer zone.

Zones are nested, that is some zones are fully contained within other zones and are automatically included if the outer zone is selected. They may also overlap their neighbours.

Zones are arranged as adjacent tiles or arbitrary shapes that do not overlap.

Zones are arranged as adjacent tiles in sequence that touch at either or both ends. They do not overlap.

Zones are arranged as adjacent tiles in sequence that touch at either or both ends. They may partially overlap such that some stops are in both zones.