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Vector Map

Zooming and Centering

Documentation

This demo shows the 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.

Apply
Reset
import React from 'react'; import Map, { Layer, Tooltip } from 'devextreme-react/vector-map'; import Button from 'devextreme-react/button'; import * as mapsData from 'devextreme/dist/js/vectormap-data/world.js'; import { markers } from './data.js'; const bounds = [-180, 85, 180, -60]; class App extends React.Component { constructor(props) { super(props); this.storeVectorMap = (component) => { this.vectorMap = component.instance; }; this.reset = () => { this.vectorMap.center(null); this.vectorMap.zoomFactor(null); }; } customizeTooltip(arg) { if (arg.layer.type === 'marker') { return { text: arg.attribute('name') }; } } markerClick(e) { if (e.target && e.target.layer.type === 'marker') { e.component.center(e.target.coordinates()).zoomFactor(10); } } render() { return ( <div> <Map ref={this.storeVectorMap} id={'vector-map'} onClick={this.markerClick} bounds={bounds}> <Layer dataSource={mapsData.world} hoverEnabled={false}> </Layer> <Layer dataSource={markers} /> <Tooltip enabled={true} customizeTooltip={this.customizeTooltip} ></Tooltip> </Map> <Button text={'Reset'} id={'reset'} onClick={this.reset} ></Button> </div> ); } } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <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=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
#vector-map { height: 420px; } #reset { margin: 10px 2px; }
export 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' } } ];
System.config({ transpiler: 'plugin-babel', meta: { 'devextreme/dist/js/vectormap-data/*': { esModule: true } }, paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme/dist/js/vectormap-data': 'npm:devextreme@19.2/dist/js/vectormap-data', 'devextreme-react': 'npm:devextreme-react@19.2', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', 'devexpress-gantt': 'npm:devexpress-gantt', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });