distance_problems

A npm package to find:

1. In range locations(latitude, longitude) if given N kilometers Radious from a given location(latitude, longitude).
2. convert degree's to radian
3. get distance between Point A and Point B in kilometers

Installation

using npm:

npm install distance_problem

Methods

processFileGetNearestUsers:

From given location and list of users in text file(json format) with their location in logitude and latitude filter outs users available in given range (radious in kilometers) in acsending order by given user_id in file.

Argument list

originLongitutide:

Origin point longitude value in degrees.

originLatitude:

Origin point latitude value in degrees.

inputFilePath:

Input text file path having json data.

{"latitude": "52.986375", "user_id": 12, "name": "Christina McArdle", "longitude": "-6.043701"}
{"latitude": "51.92893", "user_id": 1, "name": "Alice Cahill", "longitude": "-10.27699"}

range:

Integer number denoting distance in kilo meters in which radious users should be present.

callback

Callback method with two argument error and result.

getDistanceKm:

Takes longitude and latitude of two locations gives distance among them in kilometers.

Argument list

longitude1:

Longitude of first location

lattitude1:

Latitude of first location

longitude2:

Longitude of second location

latitude2:

Latitude of second location

convertDegreeToRadians:

Converts given degree value in radians.

Argument list

degreeValue:

Float number denoting degree

Usage

const distanceProblem =  require(distance_problem);

// example data
let inputFilePath = './data/Customers_data.txt';
let originLatitude =  53.339428;
let originLongitude =  -6.257664;
let range = 100;
let latitudePoint2 = 52.986375;
let longitudePoint2 = -6.043701;

let radianVal = distanceProblem.convertDegreeToRadians(originLatitude);

let distanceInKM = distanceProblem.convertDegreeToRadians(originLongitude,     originLatitude, longitudePoint2, latitudePoint2 );

let processFileGetNearestUsers(originLongitude, originLatitude,         inputFilePath, range, (error, results)=>{
    console.log("users in given range are:", results);
    })){