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diff --git a/schall/static/RGraph/docs/dynamic.html b/schall/static/RGraph/docs/dynamic.html new file mode 100644 index 0000000..ceb86e4 --- /dev/null +++ b/schall/static/RGraph/docs/dynamic.html @@ -0,0 +1,232 @@ +<!DOCTYPE html> +<html> +<head> + <meta http-equiv="X-UA-Compatible" content="chrome=1"> + <!-- + /** + * o------------------------------------------------------------------------------o + * | This file is part of the RGraph package - you can learn more at: | + * | | + * | http://www.rgraph.net | + * | | + * | This package is licensed under the RGraph 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.rgraph.net/LICENSE.txt | + * o------------------------------------------------------------------------------o + */ + --> + <title>RGraph: HTML5 Javascript charts library - Updating your charts dynamically</title> + + <meta name="keywords" content="rgraph html5 canvas charts docs dynamic" /> + <meta name="description" content="RGraph: HTML5 Javascript charts library - Updating your charts dynamically" /> + + <meta property="og:title" content="RGraph: HTML5 Javascript charts library" /> + <meta property="og:description" content="A charts library based on the HTML5 canvas tag" /> + <meta property="og:image" content="http://www.rgraph.net/images/logo.png"/> + + <link rel="stylesheet" href="../css/website.css" type="text/css" media="screen" /> + <link rel="icon" type="image/png" href="/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> + + <script src="../libraries/RGraph.common.core.js" ></script> + <script src="../libraries/RGraph.common.context.js" ></script> + <script src="../libraries/RGraph.line.js" ></script> + <!--[if IE 8]><script src="../excanvas/excanvas.original.js"></script><![endif]--> + + <script> + var _gaq = _gaq || []; + _gaq.push(['_setAccount', 'UA-54706-2']); + _gaq.push(['_trackPageview']); + + (function() { + var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; + ga.src = ('https:' == document.location.protocol ? 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This is provided in the RGraph 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> + + <canvas id="cvs" width="600" height="250" style="float: right">[No canvas support]</canvas> + <script> + window.onload = function (e) + { + d1 = []; + d2 = []; + + // Pre-pad the arrays with 100 null values + for (var i=0; i<100; ++i) { + d1.push(null); + d2.push(null); + } + + function getGraph(id, d1, d2) + { + var graph = new RGraph.Line(id, d1, d2); + graph.Set('chart.xticks', 100); + graph.Set('chart.background.barcolor1', 'white'); + graph.Set('chart.background.barcolor2', 'white'); + graph.Set('chart.title.xaxis', 'Time >>>'); + graph.Set('chart.title.yaxis', 'Bandwidth (MB/s)'); + graph.Set('chart.title.vpos', 0.5); + graph.Set('chart.title', 'Bandwidth used by servers 1 and 2'); + graph.Set('chart.filled', true); + graph.Set('chart.fillstyle', ['#daf1fa', '#faa']); + graph.Set('chart.colors', ['rgb(169, 222, 244)', 'red']); + graph.Set('chart.linewidth', 1); + //graph.Set('chart.ylabels.inside', true); + graph.Set('chart.yaxispos', 'right'); + graph.Set('chart.ymax', 20); + graph.Set('chart.xticks', 25); + + return graph; + } + + function drawGraph () + { + RGraph.Clear(document.getElementById("cvs")); + + var graph = getGraph('cvs', d1, d2); + graph.Draw(); + + // Add some data to the data arrays + var r1 = RGraph.random(7, 9); + var r2 = RGraph.random(7, 10); + + d1.push(r1); + d2.push(r2); + + if (d1.length > 100) { + d1 = RGraph.array_shift(d1); + d2 = RGraph.array_shift(d2); + } + + if (document.all && RGraph.isIE8()) { + alert('[MSIE] Sorry, Internet Explorer 8 is not fast enough to support animated charts'); + } else { + setTimeout(drawGraph,25); + } + } + + drawGraph(); + } + </script> + + <p> + The example on the right shows a line chart that automatically updates itself every 15 milliseconds. An ideal + use for this could be showing a networks bandwidth usage, or a servers load value. + </p> + + <p> + This particular example shows a stacked line chart with two data series, though if you're showing load/stress values, a + non-filled chart might be a better choice. + </p> + + <p> + To get up-to-date data from your server you could simply have the page refresh itself, storing the data on the server, + or use <a href="index.html#ajax">AJAX</a> if you want the data stored client-side. + </p> + + <p> + Be careful of the data types you use to pass the data to RGraph - you should use numbers to represent values, not strings. + </p> + + <br clear="all" /> + + <pre class="code"> +<canvas id="cvs" width="600" height="250">[No canvas support]</canvas> + +<script> + d1 = []; + d2 = []; + + // Pre-pad the arrays with 100 null values + for (var i=0; i< 100; ++i) { + d1.push(null); + d2.push(null); + } + + function getGraph(id, d1, d2) + { + var graph = new RGraph.Line(id, d1, d2); + graph.Set('chart.background.barcolor1', 'white'); + graph.Set('chart.background.barcolor2', 'white'); + graph.Set('chart.title.xaxis', 'Time'); + graph.Set('chart.filled', true); + graph.Set('chart.fillstyle', ['#daf1fa', '#faa']); + graph.Set('chart.colors', ['rgb(169, 222, 244)', 'red']); + graph.Set('chart.linewidth', 3); + graph.Set('chart.ymax', 20); + graph.Set('chart.xticks', 25); + + return graph; + } + + function drawGraph (e) + { + // Clear the canvas and redraw the chart + RGraph.Clear(document.getElementById("cvs")); + var graph = getGraph('cvs', d1, d2); + graph.Draw(); + + // Add some data to the data arrays + d1.push(RGraph.random(5, 10)); + d2.push(RGraph.random(5, 10)); + + // Get rid of the first values of the arrays + if (d1.length > 100) { + d1 = RGraph.array_shift(d1); + d2 = RGraph.array_shift(d2); + } + + setTimeout(drawGraph,25); + } + + drawGraph(); +</script> +</pre> + +</body> +</html>
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