Platform coordinate rounding

platform

Some platform APIs round submitted lat/lng to a fixed decimal precision (e.g. 4 decimals ≈ 11 m) before executing a circle target, shifting the effective center from the intended one.

Detection

Compare submitted coordinate precision/value against the platform's documented rounding behavior or the value echoed back by the API.

Mitigation

Pre-round to the platform's known precision so reported and executed centers match
Add a radius margin sized to the maximum rounding-induced center shift

Affected conversions

Point+radius → H3 approximate
H3 → circumscribed circle expansive