47 lines
1.4 KiB
TypeScript
47 lines
1.4 KiB
TypeScript
import { LngLat, LngLatBounds } from "maplibre-gl";
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import type { Marker } from "@/types";
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import type { Location } from "@/type/api";
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export function boundsMarkers(markers: Marker[]): LngLatBounds {
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let min_lat = 90;
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let min_lng = 180;
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let max_lat = -90;
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let max_lng = -180;
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markers.forEach((marker: Marker) => {
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min_lat = Math.min(marker.location.latitude, min_lat);
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min_lng = Math.min(marker.location.longitude, min_lng);
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max_lat = Math.min(marker.location.latitude, max_lat);
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max_lng = Math.min(marker.location.longitude, max_lng);
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});
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return new LngLatBounds(
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new LngLat(min_lng, min_lat),
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new LngLat(max_lng, max_lat),
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);
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}
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export function boundsDefault(): LngLatBounds {
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return new LngLatBounds(new LngLat(-125, 50), new LngLat(-70, 25));
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}
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// Helper functions (outside component)
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const getBoundingBox = (points: Location[]) => {
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if (!points || points.length === 0) {
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return null;
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}
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let minLat = points[0].latitude;
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let maxLat = points[0].latitude;
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let minLng = points[0].longitude;
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let maxLng = points[0].longitude;
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for (const point of points) {
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if (point.latitude < minLat) minLat = point.latitude;
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if (point.latitude > maxLat) maxLat = point.latitude;
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if (point.longitude < minLng) minLng = point.longitude;
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if (point.longitude > maxLng) maxLng = point.longitude;
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}
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return new window.maplibregl.LngLatBounds(
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new window.maplibregl.LngLat(minLng, minLat),
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new window.maplibregl.LngLat(maxLng, maxLat),
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);
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};
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