Fit to the Bounds of a LineString

Fit the map view to the bounding box of a GeoJSON LineString.

const API_KEY = 'toursprung';

    const geojson = {
        type: 'FeatureCollection',
        features: [{
            type: 'Feature',
            geometry: {
                type: 'LineString',
                properties: {},
                coordinates: [
                    [-77.0366048812866,  38.89873175227713],
                    [-77.03364372253417, 38.89876515143842],
                    [-77.03364372253417, 38.89549195896866],
                    [-77.02982425689697, 38.89549195896866],
                    [-77.02400922775269, 38.89387200688839],
                    [-77.01519012451172, 38.891416957534204],
                    [-77.01521158218382, 38.892068305429156],
                    [-77.00813055038452, 38.892051604275686],
                    [-77.00832366943358, 38.89143365883688],
                    [-77.00818419456482, 38.89082405874451],
                    [-77.00815200805664, 38.88989712255097]
                ]
            }
        }]
    };

    const map = new maptoolkit.Map({
        container: 'map',
        style: `https://static.maptoolkit.net/styles/toursprung/terrain.json?api_key=${API_KEY}`,
        center: [-77.0214, 38.897],
        zoom: 12,
        attributionControl: { compact: false }
    });

    map.addControl(new maptoolkit.NavigationControl(), 'top-right');

    map.on('load', () => {
        map.addSource('LineString', {
            type: 'geojson',
            data: geojson
        });

        map.addLayer({
            id: 'LineString',
            type: 'line',
            source: 'LineString',
            layout: {
                'line-join': 'round',
                'line-cap': 'round'
            },
            paint: {
                'line-color': '#BF93E4',
                'line-width': 5
            }
        });

        document.getElementById('zoomto').addEventListener('click', () => {
            const coordinates = geojson.features[0].geometry.coordinates;

            // Calculate the bounding box of the LineString
            const bounds = coordinates.reduce((bounds, coord) => {
                return bounds.extend(coord);
            }, new maptoolkit.LngLatBounds(coordinates[0], coordinates[0]));

            map.fitBounds(bounds, { padding: 20 });
        });
    });

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Fit to the Bounds of a LineString – Maptoolkit Maps JS</title>
    <meta property="og:description" content="Fit the map view to the bounding box of a GeoJSON LineString." />
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <script src="https://unpkg.com/@maptoolkit/maps@11.0.0-beta.2/dist/maptoolkit.js"></script>
    <link rel="stylesheet" href="https://unpkg.com/@maptoolkit/maps@11.0.0-beta.2/dist/maptoolkit.css" />
    <style>
        html, body { width: 100%; height: 100%; margin: 0; padding: 0; }
        #map { width: 100%; height: 100%; }
        .btn-control {
            font: bold 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
            background-color: #3386c0;
            color: #fff;
            position: absolute;
            top: 20px;
            left: 50%;
            z-index: 1;
            border: none;
            width: 200px;
            margin-left: -100px;
            display: block;
            cursor: pointer;
            padding: 10px 20px;
            border-radius: 3px;
        }
        .btn-control:hover { background-color: #4ea0da; }
    </style>
</head>
<body>
<div id="map"></div>
<button id="zoomto" class="btn-control">Zoom to bounds</button>
<script>
    const API_KEY = 'toursprung';

    const geojson = {
        type: 'FeatureCollection',
        features: [{
            type: 'Feature',
            geometry: {
                type: 'LineString',
                properties: {},
                coordinates: [
                    [-77.0366048812866,  38.89873175227713],
                    [-77.03364372253417, 38.89876515143842],
                    [-77.03364372253417, 38.89549195896866],
                    [-77.02982425689697, 38.89549195896866],
                    [-77.02400922775269, 38.89387200688839],
                    [-77.01519012451172, 38.891416957534204],
                    [-77.01521158218382, 38.892068305429156],
                    [-77.00813055038452, 38.892051604275686],
                    [-77.00832366943358, 38.89143365883688],
                    [-77.00818419456482, 38.89082405874451],
                    [-77.00815200805664, 38.88989712255097]
                ]
            }
        }]
    };

    const map = new maptoolkit.Map({
        container: 'map',
        style: `https://static.maptoolkit.net/styles/toursprung/terrain.json?api_key=${API_KEY}`,
        center: [-77.0214, 38.897],
        zoom: 12,
        attributionControl: { compact: false }
    });

    map.addControl(new maptoolkit.NavigationControl(), 'top-right');

    map.on('load', () => {
        map.addSource('LineString', {
            type: 'geojson',
            data: geojson
        });

        map.addLayer({
            id: 'LineString',
            type: 'line',
            source: 'LineString',
            layout: {
                'line-join': 'round',
                'line-cap': 'round'
            },
            paint: {
                'line-color': '#BF93E4',
                'line-width': 5
            }
        });

        document.getElementById('zoomto').addEventListener('click', () => {
            const coordinates = geojson.features[0].geometry.coordinates;

            // Calculate the bounding box of the LineString
            const bounds = coordinates.reduce((bounds, coord) => {
                return bounds.extend(coord);
            }, new maptoolkit.LngLatBounds(coordinates[0], coordinates[0]));

            map.fitBounds(bounds, { padding: 20 });
        });
    });
</script>
</body>
</html>

Fit a Map to a Bounding Box Fly to a Location