Swipe between maps
Use mapbox-gl-compare to swipe between and synchronize two maps.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Swipe between maps</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<link href="https://api.mapbox.com/mapbox-gl-js/v3.8.0/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v3.8.0/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
body {
overflow: hidden;
}
body * {
-webkit-touch-callout: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.map {
position: absolute;
top: 0;
bottom: 0;
width: 100%;
}
</style>
<script src="https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-compare/v0.4.0/mapbox-gl-compare.js"></script>
<link rel="stylesheet" href="https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-compare/v0.4.0/mapbox-gl-compare.css" type="text/css">
<div id="comparison-container">
<div id="before" class="map"></div>
<div id="after" class="map"></div>
</div>
<script>
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
const beforeMap = new mapboxgl.Map({
container: 'before',
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/light-v11',
center: [0, 0],
zoom: 0
});
const afterMap = new mapboxgl.Map({
container: 'after',
style: 'mapbox://styles/mapbox/dark-v11',
center: [0, 0],
zoom: 0
});
// A selector or reference to HTML element
const container = '#comparison-container';
const map = new mapboxgl.Compare(beforeMap, afterMap, container, {
// Set this to enable comparing two maps by mouse movement:
// mousemove: true
});
</script>
</body>
</html>
This code snippet will not work as expected until you replace
YOUR_MAPBOX_ACCESS_TOKEN
with an access token from your Mapbox account.import React, { useEffect, useRef } from 'react';
import mapboxgl from 'mapbox-gl';
import mapboxglCompare from 'mapbox-gl-compare';
import 'mapbox-gl/dist/mapbox-gl.css';
import 'mapbox-gl-compare/dist/mapbox-gl-compare.css';
// extend mapboxgl, adding the Compare class
mapboxgl.Compare = mapboxglCompare;
const MapboxExample = () => {
const mapRef = useRef();
const beforeMapContainerRef = useRef();
const afterMapContainerRef = useRef();
const comparisonContainerRef = useRef();
const mapStyle = { position: 'absolute', top: 0, bottom: 0, width: '100%' };
useEffect(() => {
// some development servers will run this hook more than once
// return if the map has already been initialized
if (mapRef.current) return;
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
const beforeMap = new mapboxgl.Map({
container: beforeMapContainerRef.current,
style: 'mapbox://styles/mapbox/light-v11',
center: [0, 0],
zoom: 0
});
const afterMap = new mapboxgl.Map({
container: afterMapContainerRef.current,
style: 'mapbox://styles/mapbox/dark-v11',
center: [0, 0],
zoom: 0
});
mapRef.current = new mapboxgl.Compare(
beforeMap,
afterMap,
comparisonContainerRef.current
);
}, []);
return (
<div
id="comparison-container"
ref={comparisonContainerRef}
style={{ height: '100%', position: 'relative' }}
>
<div id="before" ref={beforeMapContainerRef} style={mapStyle}></div>
<div id="after" ref={afterMapContainerRef} style={mapStyle}></div>
</div>
);
};
export default MapboxExample;
This code snippet will not work as expected until you replace
YOUR_MAPBOX_ACCESS_TOKEN
with an access token from your Mapbox account.Was this example helpful?