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  • License BSD-3-Clause

Package Exports

  • geodesy-js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (geodesy-js) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

geodesy-js

A lightweight library represents a location with an easy to use API (using unitsnet-js units structs).

Supports getting the curve between two locations and getting a destination location based on curve data.

The calculations is from the great Geodesy project.

CI CD Status Tests Coverage Status

Install via NPM:

npm install geodesy-js

Using examples

Example with the class driven API

import { GeoLocation } from 'geodesy-js';
import { Angle, Length } from 'unitsnet-js';

// Create a world location
const location = new GeoLocation({
    Latitude: Angle.FromDegrees(32),
    Longitude: Angle.FromDegrees(35),
});

// Get a location based on the curve from the location
const destinationLocation = location.destination(Angle.FromDegrees(10), Length.FromMeters(3000));

console.log(`The destination coordinates:`);
console.log(`Latitude: ${destinationLocation.Latitude.toString()}`); // Latitude: 32.026643406143805 °
console.log(`Longitude: ${destinationLocation.Longitude.toString()}`); // Longitude: 35.005514633016986 °


// Get the distance between the location and the destinationLocation.
const distance = location.distance(destinationLocation);
console.log(`The distance: ${distance.toString()}`); // The distance: 2999.998518387958 m


// Get the curve (distance & azimuth) between the location and the destinationLocation.
const curve = location.curve(destinationLocation);
console.log(`The curve:`);
console.log(`Distance: ${curve.Distance.toString()}`); // Distance: 2999.998518387958 m
console.log(`Azimuth: ${curve.Azimuth.toString()}`); // Azimuth: 9.999999999995072 °

Example with the methods driven API

import { GeoPoint, getDestinationGeoPoint, getDistance, getGeoPointsCurve } from 'geodesy-js';
import { Angle, Length } from 'unitsnet-js';

// Create a world location
const location: GeoPoint = {
    Latitude: Angle.FromDegrees(32),
    Longitude: Angle.FromDegrees(35),
};

// Get a location based on the curve from the location
const destinationLocation = getDestinationGeoPoint(location, Angle.FromDegrees(10), Length.FromMeters(3000));

console.log(`The destination coordinates:`);
console.log(`Latitude: ${destinationLocation.Latitude.toString()}`); // Latitude: 32.026643406143805 °
console.log(`Longitude: ${destinationLocation.Longitude.toString()}`); // Longitude: 35.005514633016986 °


// Get the distance between the location and the destinationLocation.
const distance = getDistance(location, destinationLocation);
console.log(`The distance: ${distance.toString()}`); // The distance: 2999.998518387958 m


// Get the curve (distance & azimuth) between the location and the destinationLocation.
const curve = getGeoPointsCurve(location, destinationLocation);
console.log(`The curve:`);
console.log(`Distance: ${curve.Distance.toString()}`); // Distance: 2999.998518387958 m
console.log(`Azimuth: ${curve.Azimuth.toString()}`); // Azimuth: 9.999999999995072 °

Currently the library supports only WGS84 datum.