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fix(geo): wrap longitude differences across the antimeridian in point distances (#1304)

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Wrap longitude differences in annotation proximity checks and nearby-place distances so points across the antimeridian remain close.

Original contribution by quanticsoul4772.

Co-authored-by: quanticsoul4772 <[email protected]>
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quanticsoul4772 authored and GitHub committed 2026-10-24 08:19:21 -07:00
1 parent 9d3548c27c
commit 07318cc9a4
6 files changed
+48 -2
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src/data/placeProviderPayloads.js
+4 -1
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@@ -13,8 +13,11 @@ function approximateDistanceM(latA, lonA, latB, lonB) {
return Number.MAX_SAFE_INTEGER;
const latitudeScale = 111320;
const longitudeScale = latitudeScale * Math.cos((latA * Math.PI) / 180);
// The short way round, so places either side of 180° stay close.
let dLon = lonB - lonA;
dLon -= 360 * Math.round(dLon / 360);
return Math.round(
Math.hypot((latB - latA) * latitudeScale, (lonB - lonA) * longitudeScale),
Math.hypot((latB - latA) * latitudeScale, dLon * longitudeScale),
);
}