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Charts

Pie with Custom Labels

Documentation
This demo illustrates how the PieChart widget arranges labels in several columns. To maximize readability, the widget ensures that labels do not overlap one another.
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window.onload = function() { var viewModel = { chartOptions: { palette: "bright", dataSource: dataSource, title: "Olympic Medals in 2008", legend: { orientation: "horizontal", itemTextPosition: "right", horizontalAlignment: "right", verticalAlignment: "bottom", columnCount: 4 }, "export": { enabled: true }, series: [{ argumentField: "country", valueField: "medals", label: { visible: true, font: { size: 16 }, connector: { visible: true, width: 0.5 }, position: "columns", customizeText: function(arg) { return arg.valueText + " (" + arg.percentText + ")"; } } }] } }; 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="js/jquery-3.1.0.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.0/knockout-min.js"></script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/16.2.6/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/16.2.6/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; }
var dataSource = [{ country: "USA", medals: 110 }, { country: "China", medals: 100 }, { country: "Russia", medals: 72 }, { country: "Britain", medals: 47 }, { country: "Australia", medals: 46 }, { country: "Germany", medals: 41 }, { country: "France", medals: 40 }, { country: "South Korea", medals: 31 }];