en.wikipedia.org
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Backend API
import React from 'react';
import PieChart, {
Series,
Tooltip,
Export,
} from 'devextreme-react/pie-chart';
import { populationData } from './data.ts';
import TooltipTemplate from './TooltipTemplate.tsx';
function App() {
return (
<PieChart
id="pie-chart"
dataSource={populationData}
title="Top 10 Most Populated States in US"
palette="Bright"
>
<Series
argumentField="name"
valueField="population"
/>
<Tooltip
enabled={true}
contentRender={TooltipTemplate}
/>
<Export enabled={true} />
</PieChart>
);
}
export default App;
import React from 'react';
import PieChart, { Series, Tooltip, Export } from 'devextreme-react/pie-chart';
import { populationData } from './data.js';
import TooltipTemplate from './TooltipTemplate.js';
function App() {
return (
<PieChart
id="pie-chart"
dataSource={populationData}
title="Top 10 Most Populated States in US"
palette="Bright"
>
<Series
argumentField="name"
valueField="population"
/>
<Tooltip
enabled={true}
contentRender={TooltipTemplate}
/>
<Export enabled={true} />
</PieChart>
);
}
export default App;
import React from 'react';
function getImagePath(point: { data: { name: string; }; }) {
return `../../../../images/flags/${point.data.name.replace(/\s/, '')}.svg`;
}
const formatNumber = new Intl.NumberFormat('en-US', {
maximumFractionDigits: 0,
}).format;
export default function TooltipTemplate(info) {
return (
<div className="state-tooltip">
<img src={getImagePath(info.point)} /><h4 className="state">{info.argument}</h4>
<div className="capital">
<span className="caption">Capital</span>: {info.point.data.capital}
</div>
<div className="population">
<span className="caption">Population</span>: {formatNumber(info.value)} people
</div>
<div>
<span className="caption">Area</span>: <span className="area-km">{formatNumber(info.point.data.area)}</span> km<sup>2</sup> (<span className="area-mi">{formatNumber(0.3861 * info.point.data.area)}</span> mi<sup>2</sup>)
</div>
</div>
);
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const populationData = [{
name: 'California',
population: 38802500,
capital: 'Sacramento',
area: 423967,
}, {
name: 'Texas',
population: 26956958,
capital: 'Austin',
area: 695662,
}, {
name: 'Florida',
population: 19893297,
capital: 'Tallahassee',
area: 170312,
}, {
name: 'New York',
population: 19746227,
capital: 'Albany',
area: 141297,
}, {
name: 'Illinois',
population: 12880580,
capital: 'Springfield',
area: 149995,
}, {
name: 'Pennsylvania',
population: 12787209,
capital: 'Harrisburg',
area: 119280,
}, {
name: 'Ohio',
population: 11594163,
capital: 'Columbus',
area: 116098,
}, {
name: 'Georgia',
population: 10097343,
capital: 'Atlanta',
area: 153910,
}, {
name: 'North Carolina',
population: 9943964,
capital: 'Raleigh',
area: 139391,
}, {
name: 'Michigan',
population: 9909877,
capital: 'Lansing',
area: 250487,
}];
window.exports = window.exports || {};
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
jsx: 'react',
},
meta: {
'react': {
'esModule': true,
},
'typescript': {
'exports': 'ts',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.8.1/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.12/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
// 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',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
},
packages: {
'devextreme': {
defaultExtension: 'js',
},
'devextreme-react': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/localization/messages': {
format: 'json',
defaultExtension: 'json',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
import React from 'react';
function getImagePath(point) {
return `../../../../images/flags/${point.data.name.replace(/\s/, '')}.svg`;
}
const formatNumber = new Intl.NumberFormat('en-US', {
maximumFractionDigits: 0,
}).format;
export default function TooltipTemplate(info) {
return (
<div className="state-tooltip">
<img src={getImagePath(info.point)} />
<h4 className="state">{info.argument}</h4>
<div className="capital">
<span className="caption">Capital</span>: {info.point.data.capital}
</div>
<div className="population">
<span className="caption">Population</span>: {formatNumber(info.value)} people
</div>
<div>
<span className="caption">Area</span>:{' '}
<span className="area-km">{formatNumber(info.point.data.area)}</span> km<sup>2</sup> (
<span className="area-mi">{formatNumber(0.3861 * info.point.data.area)}</span> mi
<sup>2</sup>)
</div>
</div>
);
}
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const populationData = [
{
name: 'California',
population: 38802500,
capital: 'Sacramento',
area: 423967,
},
{
name: 'Texas',
population: 26956958,
capital: 'Austin',
area: 695662,
},
{
name: 'Florida',
population: 19893297,
capital: 'Tallahassee',
area: 170312,
},
{
name: 'New York',
population: 19746227,
capital: 'Albany',
area: 141297,
},
{
name: 'Illinois',
population: 12880580,
capital: 'Springfield',
area: 149995,
},
{
name: 'Pennsylvania',
population: 12787209,
capital: 'Harrisburg',
area: 119280,
},
{
name: 'Ohio',
population: 11594163,
capital: 'Columbus',
area: 116098,
},
{
name: 'Georgia',
population: 10097343,
capital: 'Atlanta',
area: 153910,
},
{
name: 'North Carolina',
population: 9943964,
capital: 'Raleigh',
area: 139391,
},
{
name: 'Michigan',
population: 9909877,
capital: 'Lansing',
area: 250487,
},
];
<!DOCTYPE html>
<html 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" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.6.12/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.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#pie-chart {
height: 440px;
}
.state-tooltip {
height: 90px;
}
.state-tooltip > img {
width: 60px;
height: 40px;
display: block;
margin: 0 5px 0 0;
float: left;
border: 1px solid rgba(191, 191, 191, 0.25);
}
.state-tooltip > h4 {
line-height: 40px;
font-size: 14px;
margin-bottom: 5px;
}
.state-tooltip .caption {
font-weight: 500;
}
.state-tooltip sup {
font-size: 0.8em;
vertical-align: super;
line-height: 0;
}