Trips

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Ask for places visited

let grant = try await pool.authorization.requestAccess(
    AccessRequest(
        data: [.placesVisited, .places],
        operations: [.query],
        purpose: "Show the trips you took and the places you saved for them"
    )
)

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Read the trips

let result = try await pool.context.trips(using: grant)

guard result.home == .determined else { return }

for trip in result.trips {
    print(trip.firstDay, trip.lastDay, trip.cities.map(\.name))
}

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Home stays out

• The home city never appears in a trip, and neither does any city within 75 km of it.
• A second place the person is at almost as often, such as work or a second home, is left out the same way.
• home tells you whether that worked. It is .determined, .notEnoughLocatedPhotos (fewer than 30 photos or 10 days with a location) or .ambiguous (two places are too close to call). In the last two cases trips is empty, because a trip list that might contain home is worse than none.
• home never says which city home is.

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What PoolKit keeps

• Under .placesVisited, only the nearest city of a photo is stored. Coordinates are read once and never kept.
• Cities come from a table inside PoolKit. No photo’s location is sent to a geocoding service, Apple’s included. The .locations category changes both, for the photos it covers: see Places and visits.
• Screenshots and photos without a location never count as a visit.

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Attribution