<!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.
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.
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. |
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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