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Relax map bounds filter and add radius fallback

This commit is contained in:
Your Name 2025-12-26 01:34:25 -05:00
parent 92e9cfc566
commit 68cb21fc23
1 changed files with 21 additions and 4 deletions
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25
src/components/Map/usePostsEngine.js
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@ -90,8 +90,8 @@ function filterByBounds(posts, map) {
const ne = bounds.getNorthEast();
if (!sw || !ne) return posts;
const padLat = Math.abs(ne.lat - sw.lat) * 0.12;
const padLon = Math.abs(ne.lng - sw.lng) * 0.12;
const padLat = Math.abs(ne.lat - sw.lat) * 0.35;
const padLon = Math.abs(ne.lng - sw.lng) * 0.35;
const minLat = sw.lat - padLat;
const maxLat = ne.lat + padLat;
const minLon = sw.lng - padLon;
@ -105,6 +105,20 @@ function filterByBounds(posts, map) {
});
}
function filterByRadius(posts, center, radiusKm) {
if (!Array.isArray(posts) || posts.length === 0) return posts || [];
const [centerLon, centerLat] = center || [];
if (!Number.isFinite(centerLat) || !Number.isFinite(centerLon)) return posts || [];
const limit = Math.max(radiusKm || 0, 1);
return posts.filter((p) => {
const coords = getCoords(p);
if (!coords) return false;
const [lon, lat] = coords;
const dKm = haversineKm(centerLat, centerLon, lat, lon);
return dKm <= limit;
});
}
function getPostTimeMs(p) {
const raw = p?.created_at || p?.CreatedAt || p?.createdAt || p?.published_at;
if (!raw) return 0;
@ -519,7 +533,10 @@ export function usePostsEngine({
(tf) => {
const vAll = computeVisible(tf);
const map = mapRef.current;
const vBounded = filterByBounds(vAll, map);
let vBounded = filterByBounds(vAll, map);
if (vBounded.length === 0 && viewParams?.center && viewParams?.radiusKm) {
vBounded = filterByRadius(vAll, viewParams.center, viewParams.radiusKm * 1.2);
}
let v = vBounded;
if (v.length > MAX_VISIBLE_POSTS) {
const center = map?.getCenter?.();
@ -552,7 +569,7 @@ export function usePostsEngine({
syncMarkers(v);
},
[computeVisible, syncMarkers, mapRef, ensureClusterLayers, updateClusterData, setClusterVisibility, splitForClusters, syncPriorityMarkers]
[computeVisible, syncMarkers, mapRef, ensureClusterLayers, updateClusterData, setClusterVisibility, splitForClusters, syncPriorityMarkers, viewParams]
);
// On filter/search changes: recompute + sync (NO clear-all rebuild)