Available in the Full Version
Data Chart - Binding Real-Time Data
This sample demonstrates how to bind data with thousands of data points to the igDataChart and update it in real-time.
This sample uses CTP (Community Technical Preview) features. The API and behavior may change when these features are released with full support.
| Data Points: 5000 | Refresh time: 10 | Refreshes Per Second: 0 | |
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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Binding Real-Time Data</title>
<script src="http://ajax.aspnetcdn.com/ajax/modernizr/modernizr-2.8.3.js"></script>
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.1/jquery-ui.min.js"></script>
<!-- Ignite UI for jQuery Required Combined CSS Files -->
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet" />
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/structure/infragistics.css" rel="stylesheet" />
<!--CSS file specific for chart styling -->
<link href="http://cdn-na.infragistics.com/igniteui/2024.1/latest/css/structure/modules/infragistics.ui.chart.css" rel="stylesheet" />
<!-- Ignite UI for jQuery Required Combined JavaScript Files -->
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.core.js"></script>
<script src="http://cdn-na.infragistics.com/igniteui/2024.1/latest/js/infragistics.dv.js"></script>
<script id="tooltipTemplate" type="text/x-jquery-tmpl">
<div id="tooltip" class="ui-widget-content ui-corner-all">
<span id="tooltipValue">Value: ${item.Value}</span>
</div>
</script>
<script type="text/javascript">
var lblCount = 30, timer = 40, interval, isAdding = false;
$(function () {
var currData = null,
doGeneration = null,
startTime = null,
doUpdate = null,
started = false,
intervalId = 0,
toggleFeed = null,
curr = 10,
i = 0,
refreshCount = 0;
doGeneration = function() {
var num = 5000, data = [];
num = parseInt($("#volumeText").text());
for (i = 0; i < num; i++) {
if (Math.random() > .5) {
curr += Math.random() * 2.0;
} else {
curr -= Math.random() * 2.0;
}
var val1 = Math.round(curr * 1000.0) / 1000.0;
data[i] = { Label: i.toString(), Value: val1 };
}
currData = data;
};
doGeneration();
$("#chart").igDataChart({
width: "90%",
height: "500px",
horizontalZoomable: true,
verticalZoomable: true,
windowResponse: "immediate",
dataSource: currData,
axes: [{
name: "xAxis",
type: "categoryX",
label: "Label",
labelExtent: 30,
}, {
name: "yAxis",
type: "numericY",
labelExtent: 50,
}],
series: [{
name: "series1",
title: "Test Series",
type: "line",
xAxis: "xAxis",
yAxis: "yAxis",
valueMemberPath: "Value",
showTooltip: true,
isTransitionInEnabled: true,
isHighlightingEnabled: true,
tooltipTemplate: "tooltipTemplate",
}],
});
$("#chart").bind("igdatachartrefreshcompleted", function () {
refreshCount++;
});
$("#addDataPoints").click(function () {
doGeneration();
$("#chart").igDataChart({
dataSource: currData
});
});
toggleFeed = function(changeButton) {
var updateTicks = 33;
updateTicks = parseInt($("#intervalText").text());
if (!started) {
started = true;
if (changeButton) {
$("#startDataFeed").igButton({ labelText: 'Stop Data Feed' });
$("#addDataPoints").attr("disabled", "disabled");
}
intervalId = window.setInterval(function() {
doUpdate();
}, updateTicks);
} else {
started = false;
if (changeButton) {
$("#startDataFeed").igButton({ labelText: 'Start Data Feed' });
$("#addDataPoints").removeAttr("disabled");
}
window.clearInterval(intervalId);
}
};
$("#startDataFeed").click(function () {
toggleFeed(true);
});
$("#addDataPoints").igButton({ labelText: $("#addDataPoints").val() });
$("#startDataFeed").igButton({ labelText: $("#startDataFeed").val() });
$("#volumeSlider").slider({
slide: function (event, ui) {
$("#volumeText").text(ui.value.toString());
},
min: 100,
max: 50000,
value: 5000,
step: 100
});
$("#intervalSlider").slider({
slide: function (event, ui) {
$("#intervalText").text(ui.value.toString());
toggleFeed(false);
toggleFeed(false);
},
min: 10,
max: 1000,
value: 10,
step: 10
});
doUpdate = function() {
if (Math.random() > .5) {
curr += Math.random() * 2.0;
} else {
curr -= Math.random() * 2.0;
}
var newData = { Label: i.toString(), Value: curr };
i++;
currData.push(newData);
$("#chart").igDataChart("notifyInsertItem", currData, currData.length - 1, newData);
var oldItem = currData.shift();
$("#chart").igDataChart("notifyRemoveItem", currData, 0, oldItem);
};
window.setInterval(function () {
var refreshesPerSecond = refreshCount / 2;
refreshCount = 0;
$("#refreshCount").text(refreshesPerSecond);
}, 2000);
});
</script>
<style type="text/css">
td { vertical-align: top; }
#chart
{
position: relative;
float: left;
margin-right: 10px;
}
.selectionOptions
{
clear: left;
padding-top: 10px;
}
.slider
{
width: 200px;
height: 10px;
margin: 10px;
}
</style>
</head>
<body>
<div id="chart"></div>
<div class="selectionOptions">
<table >
<tr>
<td>
Data Points: <span id="volumeText">5000</span>
</td>
<td style="width: 10px; min-width: 10px;"></td>
<td>
Refresh time: <span id="intervalText">10</span>
</td>
<td>
Refreshes Per Second: <span id="refreshCount">0</span>
</td>
</tr>
<tr>
<td>
<div id="volumeSlider" class="sliderBounds" style="margin: 10px 5px 5px 10px;" ></div>
</td>
<td style="width: 10px; min-width: 10px;"></td>
<td>
<div id="intervalSlider" class="sliderBounds" style="margin: 10px 5px 5px 10px;" ></div>
</td>
</tr>
<tr>
<td>
<input type="button" id="addDataPoints" value="Add Data Points" />
</td>
<td style="width: 10px; min-width: 10px;"></td>
<td>
<input type="button" id="startDataFeed" value="Start Data Feed" />
</td>
</tr>
</table>
</div>
</body>
</html>