JavaScript/jQuery Vector Map - Zooming and Centering

This demo shows the JavaScript VectorMap zooming and centering capabilities. The map contains several cities represented by dot markers. To identify a city, pause on its marker, and the name of the city will appear in a tooltip. Moreover, if you click the marker, the map will be zoomed and centered on it. In code it is performed by calling the center(centerCoordinates) and zoomFactor(zoomFactor) methods. A click on the «Reset» button restores default center coordinates and zoom factor.

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Backend API

$(() => { const map = $('#vector-map').dxVectorMap({ tooltip: { enabled: true, customizeTooltip(arg) { if (arg.layer.type === 'marker') { return { text: arg.attribute('name') }; } return null; }, }, onClick(e) { if (e.target && e.target.layer.type === 'marker') { e.component.center(e.target.coordinates()); e.component.zoomFactor(10); } }, bounds: [-180, 85, 180, -60], layers: [{ dataSource: DevExpress.viz.map.sources.world, hoverEnabled: false, }, { dataSource: markers, }], }).dxVectorMap('instance'); $('#reset').dxButton({ text: 'Reset', onClick() { map.center(null).zoomFactor(null); }, }); });

<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" /> <script src="js/dx.all.js"></script> <script src="https://cdn3.devexpress.com/jslib/24.1.7/js/vectormap-data/world.js"></script> <script src="https://cdn3.devexpress.com/jslib/24.1.7/js/vectormap-data/africa.js"></script> <script src="https://cdn3.devexpress.com/jslib/24.1.7/js/vectormap-data/canada.js"></script> <script src="https://cdn3.devexpress.com/jslib/24.1.7/js/vectormap-data/eurasia.js"></script> <script src="https://cdn3.devexpress.com/jslib/24.1.7/js/vectormap-data/europe.js"></script> <script src="https://cdn3.devexpress.com/jslib/24.1.7/js/vectormap-data/usa.js"></script> <script src="data.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="vector-map"></div> <div id="reset"></div> </div> </body> </html>

#vector-map { height: 420px; } #reset { margin: 10px 2px; }

const markers = [ { coordinates: [-0.1262, 51.5002], attributes: { name: 'London', }, }, { coordinates: [149.1286, -35.2820], attributes: { name: 'Canberra', }, }, { coordinates: [139.6823, 35.6785], attributes: { name: 'Tokyo', }, }, { coordinates: [-77.0241, 38.8921], attributes: { name: 'Washington', }, }, { coordinates: [-75.6794, 45.4214], attributes: { name: 'Ottawa', }, }, { coordinates: [37.617778, 55.751667], attributes: { name: 'Moscow', }, }, { coordinates: [116.4, 39.933333], attributes: { name: 'Beijing', }, }, { coordinates: [12.5, 41.9], attributes: { name: 'Rome', }, }, { coordinates: [23.716667, 38], attributes: { name: 'Athens', }, }, { coordinates: [2.333333, 48.833333], attributes: { name: 'Paris', }, }, { coordinates: [-3.683333, 40.4], attributes: { name: 'Madrid', }, }, { coordinates: [-47.866667, -15.798889], attributes: { name: 'Brasilia', }, }, ];