for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
import * as turf from '@turf/turf';
export function getDistance(lat1: number, lon1: number, lat2: number, lon2: number) {
const from = turf.point([lon1, lat1]);
const to = turf.point([lon2, lat2]);
return turf.distance(from, to) * 1000;
}
export function positionInsidePolygon(
lat: number,
lon: number,
polygon: { lat: number; lng: number }[],
): boolean {
const point = {
type: 'Feature' as const,
properties: {},
geometry: {
type: 'Point' as const,
coordinates: [lon, lat],
},
};
const poly = {
type: 'Polygon' as const,
coordinates: [polygon.map((p) => [p.lng, p.lat])],
return turf.booleanPointInPolygon(point, poly);
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