siddthartha/geo-area

Geographical area of given polygon in WGS84

Maintainers

Details

github.com/siddthartha/geo-area-calculator

Source

Issues

Installs: 33

Dependents: 0

Suggesters: 0

Security: 0

Stars: 1

Watchers: 1

Forks: 1

Open Issues: 0

pkg:composer/siddthartha/geo-area

dev-master 2024-05-03 10:08 UTC

Requires

Requires (Dev)

MIT 23ba27bd00cdde557ee3ead6cbd280fd33dbfe38

  • Anton Sadovnikoff <sadovnikoff.woop@gmail.com>

This package is not auto-updated.

Last update: 2025-10-30 00:32:11 UTC

README

Calculation of polygon area in WGS'84 coordinates. Port of the Python algorithm to PHP and JS.

Install

In the project root folder:

.../geo-area-calculator$ composer install

If js tests needed:

.../geo-area-calculator$ npm install

Tests

PHP

.../geo-area-calculator$ phpunit

JavaScript

.../geo-area-calculator$ npm test

Examples

JavaScript

alert( ffGeo.getGeoPolygonArea(
			[
				[ -10.812317, 18 ],
				[ 10.812317, -18 ],
				[ 26.565051,  18 ],
				[ 52.622632, -18 ],
				[ 52.622632,  54 ],
				[ 10.812317,  54 ],
				[ -10.812317, 18 ],
			]
) );

PHP

use siddthartha\geo\area\helpers\GeoAreaCalculator;

echo GeoAreaCalculator::getArea(
        [
                [ -10.812317, 18 ],
                [ 10.812317, -18 ],
                [ 26.565051,  18 ],
                [ 52.622632, -18 ],
                [ 52.622632,  54 ],
                [ 10.812317,  54 ],
                [ -10.812317, 18 ],
        ]
);
// 33953235824742.51 (sq.meters)