latlong

create a kdtree from lat/long and return the closest points

Name

Synopsis

Create a simple k-d tree from lat/long and return the closest points.

Description

Create a 2-dimensional k-d tree from latitude & longitude coordinate and return the closest points to the specified location.

Example

var latlong = require('latlong')
 
var coords = [
{lat: '40.739683', long: '73.985151', name: 'Gramercy Theatre'},
{lat: '40.730601', long: '74.000447', name: 'Blue Note Jazz Club'},
{lat: '40.742256', long: '74.006344', name: 'Milk Studios'},
{lat: '40.691805', long: '73.908089', name: 'Greenroom Brooklyn'}
]
 
 
var close = latlong(coords, {loc: {lat: 40, long: 50}, max: 50})
 
 
console.log(close.reverse())

Install:

npm install latlong

Test:

npm test

##Motivation: I found myself writing this logic inline in my app. It's quite simple, but it was generic enough that I could justify splitting it out.