clock.html
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<!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=utf-8">
<title>amCharts examples</title>
<link rel="stylesheet" href="style.css" type="text/css">
<script src="../amcharts/amcharts.js" type="text/javascript"></script>
<script src="../amcharts/gauge.js" type="text/javascript"></script>
<script type="text/javascript">
var chart;
var sArrow;
var mArrow;
var hArrow;
AmCharts.ready(function () {
// clock is just an angular gauge with three arrows
chart = new AmCharts.AmAngularGauge();
chart.startDuration = 0.3;
// for simplicyty, we use only one axis
var axis = new AmCharts.GaugeAxis();
axis.startValue = 0;
axis.endValue = 12;
axis.valueInterval = 1;
axis.minorTickInterval = 0.2;
axis.showFirstLabel = false;
axis.startAngle = 0;
axis.endAngle = 360;
axis.axisAlpha = 0.3;
chart.addAxis(axis);
// hour arrow
hArrow = new AmCharts.GaugeArrow();
hArrow.radius = "50%";
hArrow.clockWiseOnly = true;
// minutes arrow
mArrow = new AmCharts.GaugeArrow();
mArrow.radius = "80%";
mArrow.startWidth = 6;
mArrow.nailRadius = 0;
mArrow.clockWiseOnly = true;
// seconds arrow
sArrow = new AmCharts.GaugeArrow();
sArrow.radius = "90%";
sArrow.startWidth = 3;
sArrow.nailRadius = 4;
sArrow.color = "#CC0000";
sArrow.clockWiseOnly = true;
// update clock before adding arrows to avoid initial animation
updateClock();
// add arrows
chart.addArrow(hArrow);
chart.addArrow(mArrow);
chart.addArrow(sArrow);
chart.write("chartdiv");
// update each second
setInterval(updateClock, 1000);
});
// update clock
function updateClock() {
// get current date
var date = new Date();
var hours = date.getHours();
var minutes = date.getMinutes();
var seconds = date.getSeconds();
// set hours
hArrow.setValue(hours + minutes / 60);
// set minutes
mArrow.setValue(12 * (minutes + seconds / 60) / 60);
// set seconds
sArrow.setValue(12 * date.getSeconds() / 60);
}
</script>
</head>
<body>
<div id="chartdiv" style="width:300px; height:250px;"></div>
</body>
</html>