Initialize a map using a bounding box | Mapbox GL JS (original) (raw)
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Initialize a map using a bounding box</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<link href="https://api.mapbox.com/mapbox-gl-js/v3.12.0/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v3.12.0/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
html,
body,
#map-wrapper-outer {
width: 100%;
height: 100%;
overflow: hidden;
}
#map-wrapper-outer {
display: 'flex';
justify-content: center;
align-items: center;
}
#map-wrapper-inner {
position: relative;
height: 100%;
width: 100%;
}
#btn-container {
position: absolute;
top: 20px;
display: flex;
justify-content: center;
gap: 10px;
width: 100%;
padding: 0 10px 0 10px;
box-sizing: border-box;
}
.btn-control {
font:
bold 12px/20px 'Helvetica Neue',
Arial,
Helvetica,
sans-serif;
background-color: #3386c0;
color: #fff;
z-index: 1;
border: none;
width: 200px;
cursor: pointer;
padding: 10px 20px;
border-radius: 3px;
}
.btn-control:hover {
background-color: #4ea0da;
}
.btn-control.active::before {
content: '✔';
margin-right: 5px;
}
</style>
<div id="btn-container">
<button id="narrow" class="btn-control">Narrow</button>
<button id="full" class="btn-control active">Full</button>
<button id="wide" class="btn-control">Wide</button>
</div>
<div id="map-wrapper-outer">
<div id="map-wrapper-inner">
<div id="map"></div>
</div>
</div>
<br>
<script>
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
let map;
const initializeMap = () => {
map = new mapboxgl.Map({
container: 'map',
bounds: [
[-74.2709, 40.48972],
[-73.7042, 40.93288]
], // bounding box (southwest corner, northeast corner)
// by setting the bounds your map will automatically center around the bounding box
fitBoundsOptions: {
padding: 15 // padding to keep the bounds away from the edge of the map
},
style: 'mapbox://styles/mapbox/standard'
});
// add a geojson line layer with a polygon representing the bounds
map.on('load', () => {
map.addLayer({
id: 'line-bounding-box',
type: 'line',
paint: {
'line-color': '#3386c0',
'line-width': 3,
'line-opacity': 0.9
},
source: {
type: 'geojson',
data: {
'type': 'Feature',
'properties': {},
'geometry': {
'type': 'Polygon',
'coordinates': [
[
[-74.2709, 40.48972],
[-74.2709, 40.93288],
[-73.7042, 40.93288],
[-73.7042, 40.48972],
[-74.2709, 40.48972]
]
]
}
}
}
});
});
};
// change the map wrapper size
const resizeMap = ({ height, width }) => {
const containerDiv = document.getElementById('map-wrapper-inner');
containerDiv.style.width = width;
containerDiv.style.height = height;
if (map) map.remove();
initializeMap();
};
const setActiveButton = (id) => {
document.getElementsByClassName('active')[0].classList.remove('active');
document.getElementById(id).classList.add('active');
};
// button click listeners
document.getElementById('narrow').addEventListener('click', () => {
resizeMap({ width: '30%', height: '100%' });
setActiveButton('narrow');
});
document.getElementById('full').addEventListener('click', () => {
resizeMap({ width: '100%', height: '100%' });
setActiveButton('full');
});
document.getElementById('wide').addEventListener('click', () => {
resizeMap({ width: '100%', height: '50%' });
setActiveButton('wide');
});
initializeMap();
</script>
</body>
</html>