import React from 'react';
import VectorMap, {
Layer,
Legend,
Source
} from 'devextreme-react/vector-map';
import * as mapsData from 'devextreme/dist/js/vectormap-data/world.js';
import { populations } from './data.js';
const colorGroups = [0, 0.5, 0.8, 1, 2, 3, 100];
const bounds = [-180, 85, 180, -60];
function App() {
return (
<VectorMap
id="vector-map" bounds={bounds}>
<Layer
dataSource={mapsData.world}
palette="Violet"
name="areas"
colorGroupingField="population"
colorGroups={colorGroups}
customize={customizeLayer}
>
</Layer>
<Legend
customizeText={customizeText}>
<Source layer="areas" grouping="color"></Source>
</Legend>
</VectorMap>
);
}
function customizeLayer(elements) {
elements.forEach((element) => {
element.attribute('population', populations[element.attribute('name')]);
});
}
function customizeText(arg) {
let text;
if (arg.index === 0) {
text = '< 0.5%';
} else if (arg.index === 5) {
text = '> 3%';
} else {
text = `${arg.start}% to ${arg.end}%`;
}
return text;
}
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/20.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.4/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: 440px;
}
export const populations = {
'China': 19,
'India': 17.4,
'United States': 4.44,
'Indonesia': 3.45,
'Brazil': 2.83,
'Pakistan': 2.62,
'Nigeria': 2.42,
'Bangladesh': 2.18,
'Russia': 2.04,
'Japan': 1.77,
'Mexico': 1.67,
'Philippines': 1.39,
'Vietnam': 1.25,
'Ethiopia': 1.23,
'Egypt': 1.21,
'Germany': 1.13,
'Iran': 1.08,
'Turkey': 1.07,
'Congo (Kinshasa)': 0.94,
'France': 0.92,
'Thailand': 0.9,
'United Kingdom': 0.89,
'Italy': 0.85,
'Burma': 0.84,
'South Africa': 0.74,
'S. Korea': 0.7,
'Colombia': 0.66,
'Spain': 0.65,
'Tanzania': 0.63,
'Kenya': 0.62,
'Ukraine': 0.6,
'Argentina': 0.59,
'Algeria': 0.54,
'Poland': 0.54,
'Sudan': 0.52,
'Canada': 0.49,
'Uganda': 0.49,
'Iraq': 0.47,
'Morocco': 0.46,
'Uzbekistan': 0.43
};
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/dist/js/vectormap-data/*': {
'esModule': true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'devextreme/dist/js/vectormap-data': 'js/vectormap-data',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.4',
'devextreme-react': 'npm:devextreme-react@20.2.4',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.7/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.5/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.8/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.7/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.7/hooks/dist/hooks.js',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});