Haversine
A simple haversine formula module for Node.js
Installation
$ npm install haversine
Usage
haversine (start, end, options)
var haversine = require('haversine')
start = {
latitude: 30.849635,
longitude: -83.24559
}
end = {
latitude: 27.950575,
longitude: -82.457178
}
console.log(haversine(start, end))
console.log(haversine(start, end, {unit: 'mile'}))
console.log(haversine(start, end, {unit: 'meter'}))
console.log(haversine(start, end, {threshold: 1}))
console.log(haversine(start, end, {threshold: 1, unit: 'mile'}))
console.log(haversine(start, end, {threshold: 1, unit: 'meter'}))
api
options.unit
- Unit of measurement applied to result (default km
)options.threshold
- If passed, will result in library returning boolean
value of whether or not the start and end points are within that supplied threshold. (default null
)
MIT License