--- a/js/flotr2/examples/old_examples/json-data.html +++ b/js/flotr2/examples/old_examples/json-data.html @@ -1,1 +1,94 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> + <meta http-equiv="X-UA-Compatible" content="IE=edge" /> + <title>Flotr: JSON Data Example</title> + <link rel="stylesheet" href="style.css" type="text/css" /> + <script type="text/javascript" src="../lib/yepnope.js"></script> + </head> + <body> + + <!-- ad --> + + <div id="wrapper"> + <h1></h1> + <div id="container" style="display:none;width:600px;height:300px;"></div> + <button disabled="disabled" id="json-btn">Request JSON</button> + <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> + <pre><code class="javascript">{ + series:[{ + data:[[0,1],[1,4],[2,3],[3,6],[4,4.5]], + points:{show:true}, + lines:{show:true} + }, + [[0,0.5],[1,0.6],[2,1.8],[3,0.9],[4,2]], + [[0,1.5],[1,2],[2,4.5],[3,3.5],[4,5.5]] + ], + options:{ + mouse:{track:true}, + xaxis:{noTicks:10, tickDecimals:1} + } +}</code></pre> + <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> + </div> + + <!-- ad --> + + <script type="text/javascript"> + function example(){ + var f = null, + button = $('json-btn'); + button.disabled = false; + button.observe('click', function(){ + /** + * The json.txt contains a valid json string. Imagine this string + * is generated by some server-side script. + */ + new Ajax.Request('json.txt', { + method:'get', + onSuccess: function(transport){ + /** + * Parse (eval) the JSON from the server. + */ + var json = transport.responseText.evalJSON(); + + if(json.series && json.options){ + /** + * The json is valid! Display the canvas container. + */ + $('container').show(); + + /** + * Draw the graph using the JSON data. Of course the + * options are optional. + */ + f = Flotr.draw($('container'), json.series, json.options); + } + + } + }); + }); + } + </script> + + <!-- analytics --> + + </body> + <script type="text/javascript" src="includes.js"></script> +</html>