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boost_geospatial_index_point_storage_and_radius_search.ts

typescript

Creates a geospatial index to store points and performs a radius

15d ago23 linesnpmjs.com
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boost_geospatial_index_point_storage_and_radius_search.ts
1import { BoostGeospatialIndex } from 'boost-geospatial-index';
2
3// Define a type for your data
4interface MyLocation {
5  id: string;
6  name: string;
7}
8
9// Initialize the index
10const index = new BoostGeospatialIndex<MyLocation>();
11
12// Add points to the index (latitude, longitude, data)
13index.insert(40.7128, -74.0060, { id: '1', name: 'New York' });
14index.insert(34.0522, -118.2437, { id: '2', name: 'Los Angeles' });
15index.insert(41.8781, -87.6298, { id: '3', name: 'Chicago' });
16
17// Search for points within a 500km radius of a coordinate
18const results = index.search(40.0, -75.0, 500);
19
20console.log('Found locations:');
21results.forEach(result => {
22  console.log(`${result.data.name} is ${result.distance.toFixed(2)} km away.`);
23});