jqwidgets-framework
Version:
jQWidgets is an advanced Angular, Vue, Blazor, React, Web Components, jquery, ASP .NET MVC, Custom Elements and HTML5 UI framework.
160 lines (141 loc) • 7.05 kB
HTML
<html lang="en">
<head>
<title id='Description'>JavaScript Chart Live Updates each second</title>
<meta name="description" content="This is an example ofJavascript Chart with Live updates every second." />
<link rel="stylesheet" href="../../../jqwidgets/styles/jqx.base.css" type="text/css" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="viewport" content="width=device-width, initial-scale=1 maximum-scale=1 minimum-scale=1" />
<script type="text/javascript" src="../../../scripts/jquery-1.12.4.min.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxcore.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxdata.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxdraw.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxchart.core.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxslider.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxbuttons.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxlistbox.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxscrollbar.js"></script>
<script type="text/javascript" src="../../../jqwidgets/jqxdropdownlist.js"></script>
<script type="text/javascript" src="../../../scripts/demos.js"></script>
<script type="text/javascript">
$(document).ready(function () {
var data = [];
var max = 800;
var timestamp = new Date();
for (var i = 0; i < 60; i++) {
timestamp.setMilliseconds(0);
timestamp.setSeconds(timestamp.getSeconds() - 1);
data.push({ timestamp: new Date(timestamp.valueOf()), value: Math.max(100, (Math.random() * 1000) % max) });
}
data = data.reverse();
// prepare jqxChart settings
var settings = {
title: "Live updates demo",
description: " ",
enableAnimations: false,
animationDuration: 1000,
enableAxisTextAnimation: true,
showLegend: true,
padding: { left: 5, top: 5, right: 5, bottom: 5 },
titlePadding: { left: 0, top: 0, right: 0, bottom: 10 },
source: data,
xAxis:
{
dataField: 'timestamp',
type: 'date',
baseUnit: 'second',
unitInterval: 5,
formatFunction: function (value) {
return $.jqx.dataFormat.formatdate(value, "hh:mm:ss", 'en-us');
},
gridLines: { step: 2 },
valuesOnTicks: true,
labels: { angle: -45, offset: { x: -17, y: 0} }
},
colorScheme: 'scheme03',
seriesGroups:
[
{
type: 'line',
columnsGapPercent: 50,
alignEndPointsWithIntervals: true,
valueAxis:
{
minValue: 0,
maxValue: 1000,
title: { text: 'Index Value' }
},
series: [
{ dataField: 'value', displayText: 'value', opacity: 1, lineWidth: 2, symbolType: 'circle', fillColorSymbolSelected: 'white', symbolSize: 4 }
]
}
]
};
// create the chart
$('#chartContainer').jqxChart(settings);
// get the chart's instance
var chart = $('#chartContainer').jqxChart('getInstance');
// color scheme drop down
var colorsSchemesList = ["scheme01", "scheme02", "scheme03", "scheme04", "scheme05", "scheme06", "scheme07", "scheme08"];
$("#dropDownColors").jqxDropDownList({ source: colorsSchemesList, selectedIndex: 2, width: '200', height: '25', dropDownHeight: 100 });
$('#dropDownColors').on('change', function (event) {
var value = event.args.item.value;
chart.colorScheme = value;
chart.update();
});
// series type drop down
var seriesList = ["line", "area", "stepline", "steparea", "splinearea", "spline", "column", "scatter", "stackedcolumn", "stackedsplinearea", "stackedspline"];
$("#dropDownSeries").jqxDropDownList({ source: seriesList, selectedIndex: 0, width: '200', height: '25', dropDownHeight: 100 });
$('#dropDownSeries').on('select', function (event) {
var args = event.args;
if (args) {
var value = args.item.value;
var group = chart.seriesGroups[0];
chart.seriesGroups[0].type = value;
chart.update();
}
});
// auto update timer
var ttimer = setInterval(function () {
var max = 800;
if (data.length >= 60)
data.splice(0, 1);
var timestamp = new Date();
timestamp.setSeconds(timestamp.getSeconds());
timestamp.setMilliseconds(0);
data.push({ timestamp: timestamp, value: Math.max(100, (Math.random() * 1000) % max) });
$('#chartContainer').jqxChart('update');
}, 1000);
});
</script>
</head>
<body class='default'>
<div id='chartContainer' style="width: 850px; height: 500px;">
</div>
<table style="width: 680px">
<tr>
<td style="padding-left: 50px;">
<p style="font-family: Verdana; font-size: 12px;">Select the series type:
</p>
<div id='dropDownSeries'>
</div>
</td>
<td>
<p style="font-family: Verdana; font-size: 12px;">Select color scheme:
</p>
<div id='dropDownColors'>
</div>
</td>
</tr>
</table>
<div class="example-description">
<br />
<h2>Description</h2>
<br />
This is an example ofJavascript Chart with Live updates every second.
</div>
<div style="position: absolute; bottom: 5px; right: 5px;">
<a href="https://www.jqwidgets.com/" alt="https://www.jqwidgets.com/"><img alt="https://www.jqwidgets.com/" title="https://www.jqwidgets.com/" src="https://www.jqwidgets.com/wp-content/design/i/logo-jqwidgets.png"/></a>
</div>
</body>
</html>