<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
	<head>
		<title>Show/Hide Technical Indicators Dynamically</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>
		<!-- chart size settings -->
		<style type="text/css">
			#chartContainer {
				width: 800px;
				height: 600px;
				float: left;
			}
		</style>
		<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.
			chart.setXMLFile("config.xml");
			// needConfig should be set to true to work with chart.objectModel
			chart.needConfig = true;
			// Writing the flash object into the page DOM.
			chart.write("chartContainer");
			
			//--------------------------------------------------------------------------------
			//		Tech indicators update
			//--------------------------------------------------------------------------------
			
			// turn sma indicator on/off
			function onSMAIndicatorClick() {
				chart.getTechIndicatorById("idMainChart", "idSMAIndicator").enabled = document.getElementById("checkBoxSMAIndicator").checked;
				chart.applySettingsChanges();
			}

			// turn BBands indicator on/off
			function onBBandsIndicatorClick() {
				chart.getTechIndicatorById("idMainChart", "idBBandsIndicator").enabled = document.getElementById("checkBoxBBandsIndicator").checked;
				chart.applySettingsChanges();
			}

			// turn Stochastick Oscillator indicator on/off
			function onStochastickOscillatorClick() {
				// turns chart with stochastic oscillator on/off
				chart.getChartById("idStochasticOscillatorChart").enabled = document.getElementById("checkBoxStochasticOscillatorIndicator").checked;
				chart.applySettingsChanges();
			}

			// turn MACD indicator on/off
			function onMACDIndicatorClick() {
				// turns chart with macd on/off
				chart.getChartById("idMACDIndicatorChart").enabled = document.getElementById("checkBoxMACDIndicator").checked;
				chart.applySettingsChanges();
			}
			
			//---------------------------------------------------------------------------------------------------
			//		Enable html controls
			//---------------------------------------------------------------------------------------------------
			
			chart.onChartDraw = function() {
				document.getElementById("checkBoxSMAIndicator").removeAttribute("disabled");
				document.getElementById("checkBoxBBandsIndicator").removeAttribute("disabled");
				document.getElementById("checkBoxStochasticOscillatorIndicator").removeAttribute("disabled");
				document.getElementById("checkBoxMACDIndicator").removeAttribute("disabled");
					
				chart.onChartDraw = null;
			}
		</script>
		<!-- style 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;
				font-weight:bold;
				padding-bottom:5px;
				padding-top:5px;
				padding-left:10px;
				padding-right:10px;
				text-align:left;
			}
			table.settings tr td {
				background-color: #F8F4F0;
				font:normal 70% Verdana;
				padding-bottom:2px;
				padding-top:2px;
				padding-left:10px;
				padding-right:10px;
				text-align:left;	
			}
		</style>
	</head>
	
	<body>
		<div id="chartContainer"><!-- Chart Container --></div>
		<table class="settings">
			<tr>
				<th colspan="2">Show/Hide Indicators:</th>
			</tr>
			<tr>
				<td><input type="checkbox" disabled="disabled" id="checkBoxSMAIndicator" onclick="onSMAIndicatorClick()" checked="checked" autocomplete="off"/></td>
				<td><label for="checkBoxSMAIndicator">SMA</label></td>
			</tr>
			<tr>
				<td><input type="checkbox" disabled="disabled" id="checkBoxBBandsIndicator" onclick="onBBandsIndicatorClick()" checked="checked" autocomplete="off"/></td>
				<td><label for="checkBoxBBandsIndicator">BBands</label></td>
			</tr>
			<tr>
				<td><input type="checkbox" disabled="disabled" id="checkBoxStochasticOscillatorIndicator" onclick="onStochastickOscillatorClick()" checked="checked" autocomplete="off"/></td>
				<td><label for="checkBoxStochasticOscillatorIndicator">Full Stochastic</label></td>
			</tr>
			<tr>
				<td><input type="checkbox" disabled="disabled" id="checkBoxMACDIndicator" onclick="onMACDIndicatorClick()" autocomplete="off"/></td>
				<td><label for="checkBoxMACDIndicator">MACD</label></td>
			</tr>
		</table>
	</body>
</html>

Sample Description

How to use this sample?

Use checkboxes to the right of the chart to show/hide different technical indicators.

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How it works

This sample uses chart object model to change chart setting as described in Updating Chart using Object Model article.

Most of visible chart entities, such as series, event markers, indicators and other, have enabled attribute, which defines whether this element is shown or not. You can change the value of this attribute using objectModel access and commit changes using applySettingsChanges method - this leads to show/hide effect.

In this sample we change enabled attribute of technical_indicator entity and we obtain link to it using getTechIndicatorById method, but please note, that some technical indicators should be shown in separate charts (Full Stochastic and MACD in this sample), so we need to show/hide the charts in which they are placed, as decribed in Show/Hide Charts sample.

Also, you can set enabled to false in initial JSON or XML configuration and change it in the run time, in this sample MACD Indicator is disabled in config.xml, but when enabled is set to true - it is instantly shown.

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AnyChartStock JavaScript API

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

Item Type Description
needConfig Property (Boolean) Defines whether the access to full chart configuration object model is required.
objectModel Property (Object) Gets chart configuration as an Object.
applySettingsChanges Method Commits changes made to settings element of the objectModel.
getChartById Method Returns link to a chart object in the objectModel.
getTechIndicatorById Method Gets the link to technical indicator object by its id.
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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Prerequisites

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

  • 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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