How to set the political view of a map - Amazon Location Service
Set political view and compare with international perspective

How to set the political view of a map

Amazon Location Service enables you to set the political view to ensure your application complies with local laws. You can set a political view and compare maps from different political perspectives.

Note

For more information, see Localization and internationalization.

Set political view and compare with international perspective

In this example, you will create and compare maps from two different political views: an international perspective and Turkey's view on Cyprus.

index.html

<!DOCTYPE html>
<html lang="en">
    <head>
        <title>Display a map</title>
        <meta property="og:description" content="Initialize a map in an HTML element with MapLibre GL JS." />
        <meta charset='utf-8'>
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel='stylesheet' href='https://unpkg.com/maplibre-gl@4.x/dist/maplibre-gl.css' />
        <link rel='stylesheet' href='style.css' />
        <script src='https://unpkg.com/maplibre-gl@4.x/dist/maplibre-gl.js'></script>
        <script src="https://unpkg.com/@mapbox/mapbox-gl-sync-move@0.3.1"></script>
        <script src='main.js'></script>
    </head>
    <body>
        <!-- Map container -->
        <div class="maps">
        <div id="internatinalView"></div>
        <div id="turkeyView"></div>
        </div>
        <script>

            const apiKey = "Add Your Api Key";
            const mapStyle = "Standard";
            const awsRegion = "eu-central-1";

            // International perspective without political-view query parameter
            const internatinalViewMapStyleUrl = `https://maps.geo.${awsRegion}.amazonaws.com/v2/styles/${mapStyle}/descriptor?key=${apiKey}`;

            // Turkey perspective with political-view query parameter
            const turkeyViewMapStyleUrl = `https://maps.geo.${awsRegion}.amazonaws.com/v2/styles/${mapStyle}/descriptor?political-view=TUR&key=${apiKey}`;

            const internatinalViewMap = new maplibregl.Map({
                container: 'internatinalView', // container id
                style: internatinalViewMapStyleUrl, // style URL
                center: [33.0714561, 35.1052139], // starting position [lng, lat]
                zoom: 7.5,
            });

            const turkeyViewMap = new maplibregl.Map({
                container: 'turkeyView', // container id
                style: turkeyViewMapStyleUrl, // style URL
                center: [33.0714561, 35.1052139],
                zoom: 7.5,
            });

            // Sync map zoom and center
            syncMaps(internatinalViewMap, turkeyViewMap);

            // Informational popup for international view
            new maplibregl.Popup({closeOnClick: false})
                .setLngLat([33, 35.5])
                .setHTML('<h4>International view <br> recognizes <br> Cyprus</h4>')
                .addTo(internatinalViewMap);

            // Informational popup for Turkey's view
            new maplibregl.Popup({closeOnClick: false})
                .setLngLat([33, 35.5])
                .setHTML('<h4>Turkey does not <br> recognize <br> Cyprus</h4>')
                .addTo(turkeyViewMap);
        </script>
    </body>
</html>
style.css

body { margin: 0; padding: 0; }
html, body { height: 100%; }
#internatinalView, #turkeyView { height: 100%; width: 100%; }
.maps {
    display: flex;
    width: 100%;
    height: 100%;
}