/usr/share/doc/libjs-flotr/examples/json-real-data.html is in libjs-flotr 0.2.1~r301-1.
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<title>Flotr: JSON on Real Data Example</title>
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<h1></h1>
<div id="container" style="width:600px;height:300px;"></div>
<h2>Example</h2>
<p>
This example shows you how to use JSON data with Flotr. The canvas container is hidden when the page is
loaded. By pressing the button a GET request is send to <a href="json.txt">json.txt</a>.
This returns a JSON string with data for three series. When the returned json is a valid object, the
canvas container is shown and the graph is rendered with <code>Flotr.draw()</code>. Here's the requested json:
</p>
<p>
Let me give you one advise about JSON. To make sure you receive the data in the right format, use the Firefox extension <a href="http://www.getfirebug.com" title="Firebug Javascript Debug Extension">Firebug</a>
to <code>console.log</code> (print) the response. With Firebug you can examine the Ajax request and it's response.
Also, it's worth reading <a href="http://prototypejs.org/learn/json">Introduction to JSON</a> on PrototypeJS.org.
</p>
<p>Finished? Go to the example <a href="index.html" title="Flotr Example Index Page">index page</a>, play with the <a href="../../playground/index.html" title="Flotr playground">playground</a> or read the <a href="http://www.solutoire.com/flotr/docs/" title="Flotr Documentation Pages">Flotr Documentation Pages</a>.</p>
<h2>The Code</h2>
<pre id="code-view"><code class="javascript"></code></pre>
<div id="footer">Copyright © 2008 Bas Wenneker, <a href="http://www.solutoire.com">solutoire.com</a></div>
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<script type="text/javascript">
var f = null;
document.observe('dom:loaded', function(){
/**
* The ajax-financial-data.php retrieves data drom the Yahoo Ichart application.
*/
new Ajax.Request('ajax-financial-data.php', {
method:'get',
onSuccess: function(transport){
/**
* Parse (eval) the JSON from the server.
*/
var json = transport.responseText.evalJSON();
if(json.data && json.ticks){
var options = {
title: "Apple Inc. real time quotes",
xaxis: {ticks: json.ticks, labelsAngle: 45},
candles: {show: true, candleWidth: 0.6},
HtmlText: false
};
/**
* Draw the graph using the JSON data. Of course the
* options are optional.
*/
f = Flotr.draw($('container'), [json.data], options);
}
else {
$('container').update('The data could not be retrieved. Check if your server can access yahoo.com and has PHP and the php_json extension.')
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