latitude-longitude

Find the distance between two coordinates, or the center coordinates of multiple.

Table of Contents

• Install
• Usage
• Responses
  • getCenter()
  • getDistance()
• License

Install

npm:

npm i latitude-longitude

yarn:

yarn add latitude-longitude

Usage

The names of the functions have been changed to make them more user friendly. Instead of long winded function names, there is a simple latlng object that can then call easily readable functions getCenter() and getDistance().

New:

import latlng from "latitude-longitude"

latlng.getCenter([[40.739683, 73.985151], [40.730601, 74.000447], [40.742256, 74.006344], [40.691805, 73.908089]])
//=> { lat: 40.72609295152872, lng: 73.97499628519203, zoom: 11 }

latlng.getDistance([40.739683, 73.985151], [40.730601, 74.000447])
//=> 1.6373159082193258

Old (still working):

import { latLngCenter, latLngDistance } from "latitude-longitude"

latLngCenter([[40.739683, 73.985151], [40.730601, 74.000447], [40.742256, 74.006344], [40.691805, 73.908089]])
//=> { lat: 40.72609295152872, lng: 73.97499628519203, zoom: 11 }

latLngDistance([40.739683, 73.985151], [40.730601, 74.000447])
//=> 1.6373159082193258

Responses

getCenter()

An object will be returned with lat, lng and zoom keys.

Response: Object

| Key | Type | Description | | :-------- | :------- | :-------------------------------- | | lat | float | The central latitude coordinate between all provided coordinates. | | lng | float | The central longitude coordinate between all provided coordinates. | | zoom | int | The zoom level required by google maps to fit all coordinates in display. |

Object:

{ 
    "lat": 40.72609295152872, 
    "lng": 73.97499628519203, 
    "zoom": 11 
}

getDistance()

An floating point will be returned with the distance between two points in kilometers.

Response: float

License

MIT © 2022 Rory Dobson