window.onload = function () {
const viewModel = {
chartOptions: {
type: 'doughnut',
palette: 'Soft Pastel',
dataSource,
title: 'The Population of Continents and Regions',
tooltip: {
enabled: true,
format: 'millions',
customizeTooltip(arg) {
return {
text: `${arg.valueText} - ${(arg.percent * 100).toFixed(2)}%`,
};
},
},
legend: {
horizontalAlignment: 'right',
verticalAlignment: 'top',
margin: 0,
},
export: {
enabled: true,
},
series: [{
argumentField: 'region',
label: {
visible: true,
format: 'millions',
connector: {
visible: true,
},
},
}],
},
};
ko.applyBindings(viewModel, document.getElementById('chart-demo'));
};
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<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" />
<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>
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.1.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.1.4/css/dx.light.css" />
<script src="https://cdn3.devexpress.com/jslib/22.1.4/js/dx.all.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="chart-demo">
<div id="pie" data-bind="dxPieChart: chartOptions"></div>
</div>
</div>
</body>
</html>
#pie {
height: 440px;
}
const dataSource = [{
region: 'Asia',
val: 4119626293,
}, {
region: 'Africa',
val: 1012956064,
}, {
region: 'Northern America',
val: 344124520,
}, {
region: 'Latin America and the Caribbean',
val: 590946440,
}, {
region: 'Europe',
val: 727082222,
}, {
region: 'Oceania',
val: 35104756,
}];