Show HN: Loc2country – Location coordinates to country in microseconds

Re:Show HN: Loc2country – Location coordinates to country in... by mtmail on Saturday July 21, 2018 @12:51PM (#17582624)

The typical user might not need https://en.wikipedia.org/wiki/Enclave_and_exclave support. I think understanding the limitations is important though. Being fast vs being accurate.

Country boundaries change over time and there's many disputed areas (let's say the Kashmir region. Are coastline or maritime borders used (useful for island states)? Explaining how and when the master data was created would help. Ideally a repeatable process. If the master data came from a different source then the possible license should be named.

How are coordinates rounded? I see geohash is used.

Simplified boundaries as input also have an effect.

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Re:Show HN: Loc2country – Location coordinates to country in... by technologia on Saturday July 21, 2018 @10:32PM (#17584987)

I had the same thought, while geohashes provide a computational speedup this project doesn't seem to be more than a glorified spreadsheet rather than a point-in-polygon search

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