<title>Exporting CSV data with externally streamed rows</title>
		<meta http-equiv="content-type" content="text/html;charset=utf-8"/>	
		<script type="text/javascript" language="javascript" src="./../js/AnyChartStock.js?v=1.9.0r9317"></script>
		<!-- Randomizer script. It is used to make random more smooth. -->
		<script type="text/javascript" language="javascript" src="./js/Randomizer.js"></script>
		<!-- chart size settings -->
		<style type="text/css">
			#chartContainer {
				width: 800px;
				height: 550px;
				float: left;
		<script type="text/javascript" language="javascript">
			// Creating new chart object. 
			var chart = new AnyChartStock("./../swf/AnyChartStock.swf?v=1.9.0r9317", "./../swf/Preloader.swf?v=1.9.0r9317");
			// Setting XML config file.
			// Writing the flash object into the page DOM.
			// Last Close value
			var lastClose = 31.1350;
			// Last Date in the data set
			var timestamp = new Date(1272311940000);
			// Randomizer instance for Close values
			var closeRandomizer = new Randomizer(31.1350, 30.99, 31.25, 0.01);
			// Randomizer instance for Volume
			var volumeRandomizer = new Randomizer(129800, 6500, 858900, 50800);

			// Streaming frame interval handler
			var interval;
			// Function to start streaming
			function startStreaming() {
				// Set Start and Stop buttons states
				// Update chart each 300 ms
				interval = setInterval(updateData, 300);
				// Start adding
			// Function to add points
			function updateData() {
				// increase date (add 1 minute)
				timestamp.setTime(timestamp.getTime() + 60 * 1000);
				// random values generation
				var open = lastClose;	// open value - last close
				var close = closeRandomizer.generateNextValue()+Math.random()*0.03; // random close value
				var high = Math.max(open, close) + (Math.ceil(Math.random() * 2) / 100) * Math.random(); // random maximal price
				var low = Math.min(open, close) - (Math.ceil(Math.random() * 2) / 100) * Math.random(); // random minimal price
				lastClose = close; // store close value
				var volume = volumeRandomizer.generateNextValue()+Math.random()*500000; // random volume
				// Format date according to mask set in config.xml for data set named "data".
				// Mask: %u - Unix timestamp
				var date = (timestamp.getTime()/1000).toString();
				// Create data string accroding to CSV settings for the data set
				var csvData = date + "," + open + "," + high + "," + low + "," + close + "," + volume;
				// add created row and remove the one row from the beggining of the dataset
				chart.appendData("data",csvData, 1);
				// appply changes
			// Function to stop streaming
			function stopStreaming() {
				// Set Start and Stop buttons states
				// stop reccuring updateData calls set using setInterval

            function getCSV() {
                document.getElementById('csv').value = chart.getDataSetCSV("data", [0, 1, 2, 3, 4, 5], "%yyyy.%MM.%dd %HH:%mm", ", ", "\n");
			//		Enable html controls
			chart.onChartDraw = function() {
				chart.onChartDraw = null;
		<!-- table settings -->
		<style type="text/css">
			table.settings {
				border-style: solid;
				border-width: 1px;
				border-color: #D0CDC9;

			table.settings tr th {
				font:normal 60% Verdana;
				background-color: #DCD9D5;
			table.settings tr td {
				background-color: #F8F4F0;
				font:normal 70% Verdana;
			table.settings input, table.settings select {
				width: 120px;
			#csv {
				width: 800;
				height: 200px;
				background-color: #FEFEFE;
				border-width: 1px;
				border-color: #C9C6C2;
				border-style: solid;
					<table class="settings">
						<tr><th>Source chart:</th></tr>
							<td id="chartContainer"><!-- Chart Container --></td>
				<td valign="top">
					<table class="settings">
						<tr><th>Data Streaming:</th></tr>
			            <tr><td><input id="btnStart" disabled="disabled" type="button" value="Start Streaming" onclick="startStreaming()" autocomplete="off" /></td></tr>
			            <tr><td><input id="btnStop" disabled="disabled" type="button" value="Stop Streaming" onclick="stopStreaming()" autocomplete="off" /></td></tr>
                        <tr><td><input id="btnGetCSV" disabled="disabled" type="button" value="Get Dataset CSV" onclick="getCSV()" autocomplete="off" /></td></tr>
					<table class="settings">
						<tr><th>CSV data result:</th></tr>
						<tr><td><textarea id="csv"></textarea></td></tr>

Sample Description

How to use this sample?

This sample shows how AnyChart Stock can be used to show changing data in real time. Use "Start Streaming" and "Stop Streaming" buttons to see how it works.

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How it works

AnyChart Stock component gives you the ability to add, remove or modify data points in real-time without full chart reloading and redrawing - you can do just what you need in a fast and flexible way.

This sample generates several random data points regularly, upon intervals defined in setInterval function and inserts them into the data set defined in config.xml using appendData function. Every time new data is added commitDataChanges function is called to apply changes.

Please note that chart in this sample contains data chart and technical indicator charts, the data is streamed only into one data set and data series is redrawn and technical indicators are recalculated and redrawn too.

You can learn everything you need to know about real-time data streaming and update in Real-Time Data Streaming and Data Manipulations article.

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AnyChartStock JavaScript API

This sample uses the following methods, properties and events from AnyChartStock JavaScript API:

Item Type Description
appendData Method Appends data to the chart.
commitDataChanges Method Commits data appends and data points erasure made by appendData(), removeDataRow() and removeDataRange() method calls.
getDataSetCSV Method Gets dataset values as CSV with custom columns order and timestamp format.
setXMLFile Method Sets chart XML configuration file path.
write Method Adds the chart to HTML DOM as a child of the specified container.
onChartDraw Event This event is dispatched when the AnyChart Stock is drawn.

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This section lists all configuration, data and auxiliary files required for this sample.

Configuration file

CSV files

SWF files

  • AnyChartStock.swf - AnyChart Stock component.
  • Preloader.swf - AnyChart Stock helper component that loads the main component (AnyChartStock.swf) and displays loading progress.

JavaScript Libraries

  • Randomizer.js - A sample JavaScript library that generates random values.
  • AnyChartStock.js - A JavaScript library that is shipped with AnyChart Stock component. It is used to embed the component into HTML DOM and to comunicate with the Flash part.

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