Calculate Distance with Longtitude and Latitude HTML

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Fri Mar 03 2023 08:46:46 GMT+0000 (Coordinated Universal Time)

Saved by @evansjeffm99 #html #distance #nodejs

<!doctype html>
<html lang="en">
<head>
    <title>Using the scripts in web pages</title>
    <meta charset="utf-8">
    <script type="module">
        import LatLon from 'https://cdn.jsdelivr.net/npm/geodesy@2/latlon-spherical.min.js';
        document.addEventListener('DOMContentLoaded', function() {
            document.querySelector('#calc-dist').onclick = function() {
                calculateDistance();
            }
        });
        function calculateDistance() {
            const p1 = LatLon.parse(document.querySelector('#point1').value);
            const p2 = LatLon.parse(document.querySelector('#point2').value);
            const dist = parseFloat(p1.distanceTo(p2).toPrecision(4));
            document.querySelector('#result-distance').textContent = dist + ' metres';
        }
    </script>
</head>
<body>
<form>
    Point 1: <input type="text" name="point1" id="point1" placeholder="lat1,lon1">
    Point 2: <input type="text" name="point2" id="point2" placeholder="lat2,lon2">
    <button type="button" id="calc-dist">Calculate distance</button>
    <output id="result-distance"></output>
</form>
</body>
</html>

Airplane travel distance formulas

http://www.movable-type.co.uk/scripts/latlong.html

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