--- /dev/null
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
+ <title>UTC date labels</title>
+ <!--[if IE]>
+ <script type="text/javascript" src="../excanvas.js"></script>
+ <![endif]-->
+ <!--
+ For production (minified) code, use:
+ <script type="text/javascript" src="dygraph-combined.js"></script>
+ -->
+ <script type="text/javascript" src="../dygraph-dev.js"></script>
+ </head>
+ <body>
+
+ <h2>UTC date and time labels</h2>
+
+ <p>This shows how date ticks and labels may be generated according to local
+ time (default) or UTC with the option <code>labelsDateUTC</code>.</p>
+
+ <p>72 hours of random hourly data since 2009-Jul-23 18:00 UTC
+ according to local time (top) and UTC (bottom):</p>
+
+ <div id="div_loc" style="width:600px; height:200px;"></div>
+ <div id="div_utc" style="width:600px; height:200px;"></div>
+
+ <p>Please note the offset between the respective ticks in both plots.
+ It should match your local time zone offset.</p>
+
+ <p>You can also check it by hovering over corresponding points and comparing
+ the value labels.</p>
+
+ <p>Try different zoom levels to show that ticks are always placed at nice
+ time boundaries.</p>
+
+ <script type="text/javascript">
+ var data = (function() {
+ var rand10 = function () { return Math.round(10 * Math.random()); };
+ var a = []
+ for (var y = 2009, m = 6, d = 23, hh = 18, n=0; n < 72; n++) {
+ a.push([new Date(Date.UTC(y, m, d, hh + n, 0, 0)), rand10()]);
+ }
+ return a;
+ })();
+ gloc = new Dygraph(
+ document.getElementById("div_loc"),
+ data,
+ {
+ labels: ['local time', 'random']
+ }
+ );
+ gutc = new Dygraph(
+ document.getElementById("div_utc"),
+ data,
+ {
+ labelsDateUTC: true,
+ labels: ['UTC', 'random']
+ }
+ );
+ </script>
+
+ </body>
+</html>
{
axes: {
x: {
- axisLabelFormatter: function(d, gran) {
- return Dygraph.dateAxisFormatter(new Date(d.getTime() + 7200*1000), gran);
+ axisLabelFormatter: function(d, gran, opts) {
+ return Dygraph.dateAxisLabelFormatter(new Date(d.getTime() + 7200*1000), gran, opts);
}
}
}
projects / dygraphs.git / commitdiff