import React from 'react';
import PieChart, {
Series,
Legend,
Label,
Connector
} from 'devextreme-react/pie-chart';
import { data } from './data.js';
import CenterTemplate from './CenterTemplate.js';
const countries = Array.from(new Set(data.map(item => item.country)));
class App extends React.Component {
customizeLabel(e) {
return `${e.argumentText}\n${e.valueText}`;
}
render() {
const pies = countries.map(country => (
<PieChart
id="pie-chart"
key={country}
dataSource={data.filter(i => i.country === country)}
resolveLabelOverlapping="shift"
sizeGroup="piesGroup"
innerRadius={0.65}
centerRender={CenterTemplate}
type="doughnut"
>
<Series
argumentField="commodity"
valueField="total"
>
<Label visible={true}
format="fixedPoint"
customizeText={this.customizeLabel}
backgroundColor="none">
<Connector visible={true}></Connector>
</Label>
</Series>
<Legend visible={false}></Legend>
</PieChart>
));
return (
<div>
<div className="long-title"><h3>Energy Production (GWh, 2016)</h3></div>
<div className="pies-container">
{pies}
</div>
</div>
);
}
}
export default App;
import React from 'react';
const formatNumber = new Intl.NumberFormat('en-US', {
minimumFractionDigits: 0
}).format;
function calculateTotal(pieChart) {
return formatNumber(pieChart.getAllSeries()[0].getVisiblePoints().reduce((s, p) => s + p.originalValue, 0));
}
function getImagePath(country) {
return `../../../../images/flags/${ country.replace(/\s/, '').toLowerCase() }.svg`;
}
export default function TooltipTemplate(pieChart) {
const country = pieChart.getAllSeries()[0].getVisiblePoints()[0].data.country;
return (
<svg>
<circle cx="100" cy="100" r={pieChart.getInnerRadius() - 6} fill="#eee"></circle>
<image href={getImagePath(country)} x="70" y="58" width="60" height="40" />
<text textAnchor="middle" x="100" y="120" style={{ fontSize: 18, fill:'#494949' }}>
<tspan x="100">{country}</tspan>
<tspan x="100" dy="20px" style={{ fontWeight: 600 }}>{
calculateTotal(pieChart)
}</tspan>
</text>
</svg>
);
}
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>
.pies-container {
margin: auto;
width: 800px;
}
.pies-container > div {
width: 400px;
float: left;
margin-top: -50px;
}
.long-title h3 {
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
export const data = [
{ country: 'France', commodity: 'Nuclear', total: 403195 },
{ country: 'Germany', commodity: 'Nuclear', total: 84634 },
{ country: 'France', commodity: 'Thermal', total: 57471 },
{ country: 'Germany', commodity: 'Thermal', total: 419591 },
{ country: 'France', commodity: 'Wind', total: 21400 },
{ country: 'Germany', commodity: 'Wind', total: 78598 },
{ country: 'France', commodity: 'Solar', total: 8160 },
{ country: 'Germany', commodity: 'Solar', total: 38098 },
{ country: 'France', commodity: 'Tidal, Wave', total: 501 }
];
System.config({
transpiler: 'plugin-babel',
meta: {
},
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',
'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
}
});