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index.htm
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index.htm
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<!doctype html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Mayan Calendar</title>
<!-- bootstrap css files -->
<link href="lib/bootstrap/css/bootstrap.min.css" rel="stylesheet" media="screen">
<link href="lib/jquery-ui-1.9.2.custom/css/smoothness/jquery-ui-1.9.2.custom.css" rel="stylesheet">
<link href="lib/jquery-bootstrap-slider/css/bootstrap-slider.css" rel="stylesheet">
</head>
<body>
<div class="container">
<h1>Mayan Calendar</h2>
<div class="well">
<div id="slider"></div>
</div>
<div class="well navbar-fixed-bottom" style="text-align:center">
<canvas id="stela" width="0" height="0"></canvas>
</div>
</div>
<!-- requestAnimationFrame shim -->
<script src="lib/requestAnimationFrame.js"></script>
<!-- calendar conversion tool -->
<script src="lib/fourmilab/astro.js"></script>
<script src="lib/fourmilab/calendar.js"></script>
<!-- Mayan calendar code -->
<script src="mayan/calendar.js"></script>
<script src="mayan/glyphs.js"></script>
<script src="mayan/stela.js"></script>
<script src="mayan/counter.js"></script>
<script src="mayan/renderer.js"></script>
<script src="mayan/tests.js"></script>
<!-- user interface components -->
<script src="lib/jquery-1.8.3.min.js"></script>
<script src="lib/jquery-bootstrap-slider/js/jquery-ui.min.js"></script>
<script src="lib/bootstrap/js/bootstrap.js"></script>
<!-- startup script -->
<script>
$(function(){
// Create Mayan calendar and pass it a canvas object
var renderer = new Mayan.Renderer(document.getElementById('stela'));
// Update the calendar with a count (number of days since Mayan creation date)
var updateCount = function(count) {
// Update target date for transitioning
renderer.targetCal.setFromCount(count);
// Update slider tooltip
var text = mayan_days_to_gregorian_str(count);
sliderTooltip.options.title = text;
refreshTooltip(sliderTooltip);
};
// Create an initial Mayan count representing today's date
var initialCount = gregorian_to_mayan_days.apply(null, todaysdate());
// Initialize the slider
$('#slider').slider({
min:0,
max:2880000,
step:1,
slide: function(evt,ui) { updateCount(ui.value); },
change: function(evt,ui) { updateCount(ui.value); },
value: initialCount,
});
// Initialize the slider tooltip
var sliderHandle = $('#slider .ui-slider-handle');
sliderHandle.tooltip({title:' ',trigger:"manual",placement:"bottom"});
sliderHandle.tooltip("show");
var sliderTooltip = sliderHandle.data('tooltip');
// Set the initial date
updateCount(initialCount);
// Load all the glyph images and start animation when done
Mayan.loadGlyphs(function() {
renderer.stela.updateCanvasSize();
requestAnimationFrame(function(){renderer.render();});
});
});
</script>
<!-- misc utility scripts -->
<script>
// zero-padding from:
// http://stackoverflow.com/questions/1267283/how-can-i-create-a-zerofilled-value-using-javascript
function paddy(n, p, c) {
var pad_char = typeof c !== 'undefined' ? c : '0';
var pad = new Array(1 + p).join(pad_char);
return (pad + n).slice(-pad.length);
}
// get current date from:
// http://stackoverflow.com/questions/1531093/how-to-get-current-date-in-javascript
function todaysdate() {
var today = new Date();
var day = today.getDate();
var month = today.getMonth()+1; //January is 0!
var year = today.getFullYear();
return [year,month,day];
}
// extra date conversion functions
function mayan_days_to_gregorian(count) {
return jd_to_gregorian(MAYAN_COUNT_EPOCH + count);
}
function gregorian_to_mayan_days(year, month, day) {
return gregorian_to_jd(year,month,day) - MAYAN_COUNT_EPOCH;
}
var mayan_days_to_gregorian_str = function(count) {
var greg = mayan_days_to_gregorian(count);
var year = greg[0];
var month = greg[1];
var day = greg[2];
var dayStr = paddy(day,2);
var yearStr = "";
if (year <= 0) {
year = -year+1;
yearStr += " BC";
}
else {
yearStr += " AD";
}
yearStr = paddy(year,4) + yearStr;
var monthStr = [
"", "Jan", "Feb", "Mar", "Apr", "May","Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec", ][month];
return monthStr + " " + dayStr + ", " + yearStr;
};
// custom function to refresh a Bootstrap Tooltip (in case its anchor has moved)
// (I copied the Tooltip.prototype.show method for the important bits)
var refreshTooltip = function(t) {
var $tip = t.tip();
$tip.find('.tooltip-inner')[t.options.html ? 'html' : 'text'](t.getTitle());
var placement = typeof t.options.placement == 'function' ?
t.options.placement.call(t, $tip[0], t.$element[0]) :
t.options.placement;
var inside = /in/.test(placement);
var pos = t.getPosition(inside);
actualWidth = $tip[0].offsetWidth;
actualHeight = $tip[0].offsetHeight;
switch (inside ? placement.split(' ')[1] : placement) {
case 'bottom':
tp = {top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2};
break;
case 'top':
tp = {top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2};
break;
case 'left':
tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth};
break;
case 'right':
tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width};
break;
}
$tip.offset(tp);
};
</script>
</body>
</html>