Your search did not match any results.
RangeSelector

Logarithmic Scale

Documentation

In this demo, a logarithmic axis is used to select a range within a set of rapidly-growing values.

Copy to CodePen
Apply
Reset
window.onload = function() { var dataSource = [], max = 100; for (var i = 0; i < max; i++) { dataSource.push({ arg: Math.pow(10, i * 0.1), val: Math.log(i + 1) / Math.log(0.5) + (Math.random() - 0.5) * (100 / (i + 1)) + 10 }); } var viewModel = { chartOptions: { dataSource: dataSource, argumentAxis: { valueMarginsEnabled: false, type: "logarithmic", label: { format: "exponential" }, grid: { visible: true }, minorGrid: { visible: true }, minorTickCount: 10 }, valueAxis: { placeholderSize: 50 }, legend: { visible: false }, series: {} }, rangeSelectorOptions: { size: { height: 120 }, dataSource: dataSource, chart: { series: {} }, scale: { type: "logarithmic", label: { format: "exponential" }, minRange: 1, minorTickCount: 10 }, sliderMarker: { format: "exponential" }, behavior: { callValueChanged: "onMoving", snapToTicks: false }, onValueChanged: function (e) { $("#zoomed-chart").dxChart("instance").zoomArgument(e.value[0], e.value[1]); } } }; ko.applyBindings(viewModel, $("#range-selector-demo").get(0)); };
<!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> <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="range-selector-demo"> <div id="zoomed-chart" data-bind="dxChart: chartOptions"></div> <div id="range-selector" data-bind="dxRangeSelector: rangeSelectorOptions"></div> </div> </div> </body> </html>
#range-selector-demo { height: 480px; width: 100%; } #zoomed-chart{ height: 335px; margin: 0 0 15px; } #range-selector { height: 80px; }