nearby-big-cities

Give me your coordinates and I'll tell you where the nearest cities (and their country) of at least 15000 people are. Uses k-nearest-neighbour algorithm, so it's fast. Works offline. Directly based on git+https://github.com/zeke/nearby-cities.git

Installation

npm install nearby-big-cities --save

Usage

const assert = require('assert')
const nearbyCities = require("nearby-big-cities")
const query = {latitude: 34.4362755, longitude: -119.705086}
 
const cities = nearbyCities(query)
 
;[ 'Santa Barbara',
  'Goleta',
  'Isla Vista',
  'Ventura'
].forEach((item, index) => assert.equal(cities[index].name, item))
 
assert.deepEqual(cities[0],
  {
    name: 'Santa Barbara',
    country: 'US',
    muni: '',
    population: 88410,
    lat: 34.42083,
    lon: -119.69819
  })
 

Tests

npm install
npm test

Dependencies

• sphere-knn: search for k nearest neighbors on a sphere

Dev Dependencies

• mocha: simple, flexible, fun test framework
• split2: split a Text Stream into a Line Stream, using Stream 3
• standard: JavaScript Standard Style
• through2: A tiny wrapper around Node streams2 Transform to avoid explicit subclassing noise

License

MIT