269 lines
11 KiB
HTML
269 lines
11 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="X-UA-Compatible" content="chrome=1">
|
|
<!--
|
|
/**
|
|
* o------------------------------------------------------------------------------o
|
|
* | This file is part of the OfficeExcel package - you can learn more at: |
|
|
* | |
|
|
* | http://www.OfficeExcel.net |
|
|
* | |
|
|
* | This package is licensed under the OfficeExcel license. For all kinds of business |
|
|
* | purposes there is a small one-time licensing fee to pay and for non |
|
|
* | commercial purposes it is free to use. You can read the full license here: |
|
|
* | |
|
|
* | http://www.OfficeExcel.net/LICENSE.txt |
|
|
* o------------------------------------------------------------------------------o
|
|
*/
|
|
-->
|
|
<title>An example of using XML data</title>
|
|
|
|
<meta name="keywords" content="OfficeExcel html5 canvas chart docs xml example" />
|
|
<meta name="description" content="An example of using XML data as a source of your chart data" />
|
|
<meta name="googlebot" content="NOODP">
|
|
|
|
<meta property="og:title" content="OfficeExcel: HTML5 Javascript charts library" />
|
|
<meta property="og:description" content="A chart library based on the HTML5 canvas tag" />
|
|
<meta property="og:image" content="http://www.OfficeExcel.net/images/logo.jpg"/>
|
|
|
|
<link rel="stylesheet" href="../css/website.css" type="text/css" media="screen" />
|
|
<link rel="icon" type="image/png" href="../images/favicon.png">
|
|
|
|
<!-- Place this tag in your head or just before your close body tag -->
|
|
<script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script>
|
|
|
|
<meta name="keywords" content="OfficeExcel chart html5 javascript canvas" />
|
|
<meta name="description" content="OfficeExcel: HTML5 Javascript charts library - Getting data from an XML file" />
|
|
|
|
<script src="../libraries/OfficeExcel.common.core.js" ></script>
|
|
<script src="../libraries/OfficeExcel.common.key.js" ></script>
|
|
<script src="../libraries/OfficeExcel.line.js" ></script>
|
|
<!--[if lt IE 9]><script src="../excanvas/excanvas.original.js"></script><![endif]-->
|
|
|
|
<?php PrintAnalyticsCode() ?>
|
|
|
|
|
|
<script>
|
|
/**
|
|
* Makes an AJAX call. It calls the given callback (a function) when ready.
|
|
* It's the same AjaxCall() function as that in the AJAX documentation.
|
|
*
|
|
* @param string url The URL to retrieve
|
|
* @param function callback A function object that is called when the response is ready, there's an example below
|
|
* called "myCallback".
|
|
*/
|
|
function AjaxCall (url, callback)
|
|
{
|
|
// Mozilla, Safari, ...
|
|
if (window.XMLHttpRequest) {
|
|
var httpRequest = new XMLHttpRequest();
|
|
|
|
// MSIE
|
|
} else if (window.ActiveXObject) {
|
|
var httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
|
|
}
|
|
|
|
httpRequest.onreadystatechange = callback;
|
|
|
|
httpRequest.open('GET', url, true);
|
|
httpRequest.send();
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* This sample callback function is called when the data is ready (readyState=4). It is where
|
|
* the XML response is parsed, the data pulled out and finally the chart is created.
|
|
*/
|
|
function myXMLProcessor ()
|
|
{
|
|
// Check the XMLHttpRequest object readystate
|
|
if (this.readyState == 4 && this.status == 200) {
|
|
|
|
/**
|
|
* Create an xmlDoc parse. MSIE has a slightly different syntax to other browsers
|
|
*/
|
|
if (window.DOMParser) {
|
|
var parser = new DOMParser();
|
|
var xmlDoc = parser.parseFromString(this.responseText,"text/xml");
|
|
} else {
|
|
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
|
|
xmlDoc.async = "false";
|
|
xmlDoc.loadXML(this.responseText);
|
|
}
|
|
|
|
/**
|
|
* Initialise the arrays that we will populate with data
|
|
*/
|
|
var john = [];
|
|
var fred = [];
|
|
var lucy = [];
|
|
|
|
var days = xmlDoc.getElementsByTagName("stats");
|
|
|
|
for (var i=0; i<days[0].childNodes.length; ++i) {
|
|
|
|
var node = days[0].childNodes[i]
|
|
|
|
if (node.nodeName == 'day') {
|
|
var john_tag = node.getElementsByTagName('john');
|
|
var fred_tag = node.getElementsByTagName('fred');
|
|
var lucy_tag = node.getElementsByTagName('lucy');
|
|
|
|
john.push(Number(john_tag[0].childNodes[0].nodeValue));
|
|
fred.push(Number(fred_tag[0].childNodes[0].nodeValue));
|
|
lucy.push(Number(lucy_tag[0].childNodes[0].nodeValue));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Now we have the information, create and show the chart
|
|
*/
|
|
var myLine = new OfficeExcel.Line('cvs', john, fred, lucy);
|
|
myLine.Set('chart.title', 'A chart of Johns, Freds and Lucys weekly statistics');
|
|
myLine.Set('chart.linewidth', 2);
|
|
myLine.Set('chart.hmargin', 5);
|
|
myLine.Set('chart.tickmarks', 'endcircle');
|
|
myLine.Set('chart.labels', ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday']);
|
|
myLine.Set('chart.key', ['John', 'Fred', 'Lucy']);
|
|
myLine.Draw();
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
* The window.onload function initiates fetching the data from the server. It makes use of the
|
|
* AjaxCall() which is detailed in the documentation here: http://www.OfficeExcel.net/docs/index.html#ajax
|
|
*/
|
|
window.onload = function ()
|
|
{
|
|
var url = 'http://' + location.host + '/sample.xml';
|
|
AjaxCall(url, myXMLProcessor);
|
|
}
|
|
</script>
|
|
|
|
</head>
|
|
<body>
|
|
|
|
|
|
<!-- Social networking buttons -->
|
|
<?php
|
|
$prefix = substr($_SERVER['SERVER_NAME'], 0, 3);
|
|
require("/OfficeExcel.{$prefix}/social.html");
|
|
?>
|
|
<!-- Social networking buttons -->
|
|
|
|
|
|
<div id="breadcrumb">
|
|
<a href="../index.html">OfficeExcel: HTML5 Javascript charts library</a>
|
|
>
|
|
<a href="./index.html">Documentation</a>
|
|
>
|
|
Getting data from an XML file
|
|
</div>
|
|
|
|
<script>
|
|
if (OfficeExcel.isOld()) {
|
|
document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer does not natively support the HTML5 canvas tag, so if you want to see the charts, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the OfficeExcel Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag.</div>');
|
|
}
|
|
</script>
|
|
|
|
<h1>Fetching <span>data from an XML file (AJAX)</span></h1>
|
|
|
|
<div class="warning">
|
|
<b>Warning:</b>
|
|
Because of the XMLHttpRequest security restrictions this example does not work offline. You can view the online version
|
|
<a href="http://www.OfficeExcel.net/docs/xml-data.html" target="_blank">here</a>.
|
|
</div>
|
|
|
|
<canvas id="cvs" width="600" height="250" style="float: right">[No canvas support]</canvas>
|
|
|
|
<p>
|
|
This is an example of fetching data from an XML file that is located on the server. The page uses the XMLHttpRequest (Javascript)
|
|
object to fetch the XML file (<a href="http://www.OfficeExcel.net/sample.xml">sample.xml</a>) then parses it in Javascript and creates the chart. The function that parses the XML response
|
|
and then uses the data to create the chart is shown below and called <i>myXMLProcessor()</i> (it's the XMLHttpRequest callback function).
|
|
</p>
|
|
|
|
<p>
|
|
This example has been tested in modern browsers and also MSIE 7/8 (via MSIE9 compatibility modes).
|
|
</p>
|
|
|
|
<br clear="all" />
|
|
|
|
<pre class="code">
|
|
<script>
|
|
|
|
// This is the same AJAX function that is defined in the documentation here:
|
|
// <a href="http://www.OfficeExcel.net/docs/#ajax">http://www.OfficeExcel.net/docs/#ajax</a>
|
|
AjaxCall('/sample.xml', myXMLProcessor);
|
|
|
|
/**
|
|
* This sample callback function is called when the data is ready (readyState=4). It is where
|
|
* the XML response is parsed, the data pulled out and finally the chart is created.
|
|
*/
|
|
function myXMLProcessor ()
|
|
{
|
|
// Check the readystate to see if the XMLHttpRequest object is ready
|
|
if (this.readyState == 4 && this.status == 200) {
|
|
|
|
/**
|
|
* This gets an xmlDoc object, accounting for differences in MSIE and
|
|
* other browsers
|
|
*/
|
|
if (window.DOMParser) {
|
|
var parser = new DOMParser();
|
|
var xmlDoc = parser.parseFromString(this.responseText,"text/xml");
|
|
} else {
|
|
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
|
|
xmlDoc.async = "false";
|
|
xmlDoc.loadXML(this.responseText);
|
|
}
|
|
|
|
/**
|
|
* Initialise the arrays that we will populate with data
|
|
*/
|
|
var john = [];
|
|
var fred = [];
|
|
var lucy = [];
|
|
|
|
/**
|
|
* Now the main loop that goes through the XML extracting the data
|
|
*/
|
|
var days = xmlDoc.getElementsByTagName("stats");
|
|
|
|
for (var i=0; i<days[0].childNodes.length; ++i) {
|
|
|
|
var node = days[0].childNodes[i]
|
|
|
|
if (node.nodeName == 'day') {
|
|
var john_tag = node.getElementsByTagName('john');
|
|
var fred_tag = node.getElementsByTagName('fred');
|
|
var lucy_tag = node.getElementsByTagName('lucy');
|
|
|
|
john.push(Number(john_tag[0].childNodes[0].nodeValue));
|
|
fred.push(Number(fred_tag[0].childNodes[0].nodeValue));
|
|
lucy.push(Number(lucy_tag[0].childNodes[0].nodeValue));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Now we have the information, use it to create and show the chart
|
|
*/
|
|
var myLine = new OfficeExcel.Line('cvs', john, fred, lucy);
|
|
myLine.Set('chart.title', 'A chart of Johns, Freds and Lucys weekly statistics');
|
|
myLine.Set('chart.linewidth', 2);
|
|
myLine.Set('chart.hmargin', 5);
|
|
myLine.Set('chart.tickmarks', 'endcircle');
|
|
myLine.Set('chart.labels', ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday']);
|
|
myLine.Set('chart.key', ['John', 'Fred', 'Lucy']);
|
|
myLine.Draw();
|
|
}
|
|
}
|
|
</script>
|
|
</pre>
|
|
|
|
</body>
|
|
</html> |