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Back to the catalogueGlobalCase 07 of 12
H3 pentagons
12 pentagon cells per resolution sit at icosahedron vertices; they break the 6-neighbour and regular-shape assumptions and have lower inscribed/circumscribed ratios.
Class
Case to account for
Affects
3 conversions
01
Detection
isPentagon(cell).
02
Mitigation
01
Handle pentagons explicitly
02
Do not assume a hexagon inscribed ratio of cos(30°)
03
Report per-cell shape regularity
03
Affected conversions
H3inscribed circle
OPENH3circumscribed circle
OPENH3exact polygon
OPEN