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Line Charts

Line

Documentation

Line chart series types help visualize data trends over specified intervals. In this example, you can switch between the line, stacked line and full-stacked line series types. Stacked line series help visualize multiple series and compare the manner in which each series contributes to the total aggregate value for specific arguments. Full-stacked line series help compare the percentage value of multiple line series for each argument.

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window.onload = function() { var currentType = ko.observable(types[0]); var viewModel = { chartOptions: { palette: "violet", dataSource: dataSource, commonSeriesSettings: { argumentField: "country", type: currentType }, margin: { bottom: 20 }, argumentAxis: { valueMarginsEnabled: false, discreteAxisDivisionMode: "crossLabels", grid: { visible: true } }, series: [ { valueField: "hydro", name: "Hydro-electric" }, { valueField: "oil", name: "Oil" }, { valueField: "gas", name: "Natural gas" }, { valueField: "coal", name: "Coal" }, { valueField: "nuclear", name: "Nuclear" } ], legend: { verticalAlignment: "bottom", horizontalAlignment: "center", itemTextPosition: "bottom" }, title: { text: "Energy Consumption in 2004", subtitle: { text: "(Millions of Tons, Oil Equivalent)" } }, "export": { enabled: true }, tooltip: { enabled: true, customizeTooltip: function (arg) { return { text: arg.valueText }; } } }, typesOptions: { dataSource: types, value: currentType } }; 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/17.2.3/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.2.3/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.2.3/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/17.2.3/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="chart" data-bind="dxChart: chartOptions"></div> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>Series Type</span> <div data-bind="dxSelectBox: typesOptions"></div> </div> </div> </div> </div> </body> </html>
.options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); margin-top: 20px; } .option { margin-top: 10px; } .caption { font-size: 18px; font-weight: 500; } .option > span { margin-right: 10px; } .option > .dx-widget { display: inline-block; vertical-align: middle; }
var dataSource = [{ country: "USA", hydro: 59.8, oil: 937.6, gas: 582, coal: 564.3, nuclear: 187.9 }, { country: "China", hydro: 74.2, oil: 308.6, gas: 35.1, coal: 956.9, nuclear: 11.3 }, { country: "Russia", hydro: 40, oil: 128.5, gas: 361.8, coal: 105, nuclear: 32.4 }, { country: "Japan", hydro: 22.6, oil: 241.5, gas: 64.9, coal: 120.8, nuclear: 64.8 }, { country: "India", hydro: 19, oil: 119.3, gas: 28.9, coal: 204.8, nuclear: 3.8 }, { country: "Germany", hydro: 6.1, oil: 123.6, gas: 77.3, coal: 85.7, nuclear: 37.8 }]; var types = ["line", "stackedline", "fullstackedline"];