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<!DOCTYPE html>
<html lang="en">
<title>Swipe between two maps - Azure Maps Web SDK Samples</title>
<meta charset="utf-8" />
<link rel="shortcut icon" href="/favicon.ico" />
<meta http-equiv="x-ua-compatible" content="IE=Edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<meta name="description" content="This sample shows how to swipe between two overlapping synchronized maps to view different data sets." />
<meta name="keywords" content="Microsoft maps, map, gis, API, SDK, synchronized maps, swipe map" />
<meta name="author" content="Microsoft Azure Maps" />
<!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
<link rel="stylesheet" href="" type="text/css" />
<script src=""></script>
<!-- Load in the JavaScript for the swipe map module. -->
<script src="/Common/scripts/azure-maps-swipe-map.min.js"></script>
<script type='text/javascript'>
var primaryMap, secondaryMap, primaryDataSource, secondaryDataSource;
function GetMap() {
//Add authentication details for connecting to Azure Maps.
var authOptions = {
//Use Azure Active Directory authentication.
authType: 'anonymous',
clientId: 'c9f2f391-13f1-407b-a4a5-f0a241bacfbf', //Your Azure Active Directory client id for accessing your Azure Maps account.
getToken: function (resolve, reject, map) {
//URL to your authentication service that retrieves an Azure Active Directory Token.
var tokenServiceUrl = '';
fetch(tokenServiceUrl).then(function (response) {
return response.text();
}).then(function (token) {
//Alternatively, use an Azure Maps key. Get an Azure Maps key at NOTE: The primary key should be used as the key.
//authType: 'subscriptionKey',
//subscriptionKey: '<Your Azure Maps Key>'
//Point the Azure Maps domain to the US Azure Gov Cloud domain.
//Initialize a map instance.
primaryMap = new atlas.Map('primaryMap', {
center: [-100, 35],
zoom: 3,
style: 'grayscale_dark',
view: 'Auto',
authOptions: authOptions
secondaryMap = new atlas.Map('secondaryMap', {
style: 'grayscale_dark',
view: 'Auto',
authOptions: authOptions
new atlas.SwipeMap(primaryMap, secondaryMap);
//Add some data to the left map.'ready', function () {
primaryDataSource = new atlas.source.DataSource();
//Choropleth based on unemployment rates in the US counties.
primaryMap.layers.add(new atlas.layer.PolygonLayer(primaryDataSource, null, {
fillColor: [
['get', 'unemployment_rate'],
3, '#FED976',
4, '#FD8D3C',
5, '#E31A1C',
6, '#800026'
fillOpacity: 0.8
}), 'labels');
//Add some data to the right map.'ready', function () {
secondaryDataSource = new atlas.source.DataSource();
//Choropleth based on suze of labor force in the US counties.
secondaryMap.layers.add(new atlas.layer.PolygonLayer(secondaryDataSource, null, {
fillColor: [
['get', 'labor_force'],
10000, '#fcc5c0',
50000, '#dd3497',
100000, '#48006a'
fillOpacity: 0.8
}), 'labels');
.mapContainer {
position: relative;
width: 100%;
height: 600px;
.map {
position: absolute;
top: 0;
left: 0;
width: 100%;
min-width: 290px;
height: 600px;
.legend {
font-family: Arial;
font-size: 12px;
position: absolute;
top: 15px;
background-color: #fff;
padding: 5px;
border-radius: 5px;
.legend i {
width: 12px;
height: 12px;
float: left;
margin-right: 8px;
opacity: 0.7;
<body onload="GetMap()">
<div class="mapContainer">
<div id="primaryMap" class="map"></div>
<div id="secondaryMap" class="map"></div>
<div class="legend" style="left: 15px;">
<b>Unemployment rate</b>
<tr><td><i style="background:#800026" /></td><td>6%+</td></tr>
<tr><td><i style="background:#E31A1C" /></td><td>5% - 5.99%</td></tr>
<tr><td><i style="background:#FD8D3C" /></td><td>4% - 4.99%</td></tr>
<tr><td><i style="background:#FED976" /></td><td>3% - 3.99%</td></tr>
<tr><td><i style="background:#FFEDA0" /></td><td>0% - 2.99%</td></tr>
<div class="legend" style="right: 15px;">
<b>Size of labor force</b>
<tr><td><i style="background:#48006a" /></td><td>100,000+</td></tr>
<tr><td><i style="background:#dd3497" /></td><td>50,000 - 99,999</td></tr>
<tr><td><i style="background:#fcc5c0" /></td><td>10,000 - 49,999</td></tr>
<tr><td><i style="background:#fff7f3" /></td><td>0 - 9,999</td></tr>
<fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
<legend><h1 style="font-size:16px">Swipe between two maps</h1></legend>
This sample shows how to swipe between two overlapping synchronized maps to view different data sets.
This sample uses the open source Azure Maps <a href="" target="_blank">Swipe Map</a> module.