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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>demo</title>
<link rel="stylesheet" type="text/css" href="../dist/dygraph.css" />
<link rel="stylesheet" type="text/css" href="../common/vextlnk.css" />
<script type="text/javascript" src="../dist/dygraph.js"></script>
<style type="text/css">
.annotation {
}
</style>
</head>
<body>
<h3>Annotations Demo</h3>
<p>Click any point to add an annotation to it or click "Add Annotation".</p>
<input type="button" value="Add Annotation" onclick="add()" />
<input type="button" value="Shove to bottom" onclick="bottom(this)" />
<div id="events"> </div>
<div style="position:absolute; left:200px; top: 200px;" id="g_div"></div>
<div style="position:absolute; left:700px; top: 200px;" id="list"></div>
<script type="text/javascript"><!--//--><![CDATA[//><!--
Dygraph.onDOMready(function onDOMready() {
var eventDiv = document.getElementById("events");
function nameAnnotation(ann) {
return "(" + ann.series + ", " + ann.x + ")";
}
annotations = [];
var graph_initialized = false;
g = new Dygraph(
document.getElementById("g_div"),
function() {
var zp = function(x) { if (x < 10) return "0"+x; else return x; };
var r = "date,parabola,line,another line,sine wave\n";
for (var i=1; i<=31; i++) {
r += "2006-10-" + zp(i);
r += "," + 10*(i*(31-i));
r += "," + 10*(8*i);
r += "," + 10*(250 - 8*i);
r += "," + 10*(125 + 125 * Math.sin(0.3*i));
r += "\n";
}
return r;
},
{
rollPeriod: 1,
showRoller: true,
width: 480,
height: 320,
drawCallback: function(g, is_initial) {
if (is_initial) {
graph_initialized = true;
if (annotations.length > 0) {
g.setAnnotations(annotations);
}
}
var ann = g.annotations();
var html = "";
for (var i = 0; i < ann.length; i++) {
var name = nameAnnotation(ann[i]);
html += "<span id='" + name + "'>"
html += name + ": " + (ann[i].shortText || '(icon)')
html += " -> " + ann[i].text + "</span><br />";
}
document.getElementById("list").innerHTML = html;
}
}
);
var last_ann = 0;
for (var x = 10; x < 15; x += 2) {
annotations.push( {
series: 'sine wave',
x: "2006-10-" + x,
shortText: x,
text: 'Stock Market Crash ' + x
} );
last_ann = x;
}
annotations.push( {
series: 'another line',
x: "2006-10-13",
icon: '../common/dollar.png',
width: 18,
height: 23,
tickHeight: 4,
tickColor: 'indianred',
tickWidth: 2,
text: 'Another one',
cssClass: 'annotation',
clickHandler: function() {
document.getElementById("events").innerHTML += "special handler<br />";
}
} );
annotations.push( {
series: 'parabola',
x: '2006-10-12',
shortText: 'P',
text: 'Parabola Annotation at same x-coord'
} );
if (graph_initialized) {
g.setAnnotations(annotations);
}
add = function add() {
var x = last_ann + 2;
var annnotations = g.annotations();
annotations.push( {
series: 'line',
x: "2006-10-" + x,
shortText: x,
text: 'Line ' + x,
tickHeight: 10
} );
last_ann = x;
g.setAnnotations(annotations);
}
bottom = function bottom(el) {
var to_bottom = true;
if (el.value != 'Shove to bottom') to_bottom = false;
var anns = g.annotations();
for (var i = 0; i < anns.length; i++) {
anns[i].attachAtBottom = to_bottom;
}
g.setAnnotations(anns);
if (to_bottom) {
el.value = 'Lift back up';
} else {
el.value = 'Shove to bottom';
}
}
var saveBg = '';
var num = 0;
g.updateOptions( {
annotationClickHandler: function(ann, point, dg, event) {
eventDiv.innerHTML += "click: " + nameAnnotation(ann) + "<br />";
},
annotationDblClickHandler: function(ann, point, dg, event) {
eventDiv.innerHTML += "dblclick: " + nameAnnotation(ann) + "<br />";
},
annotationMouseOverHandler: function(ann, point, dg, event) {
document.getElementById(nameAnnotation(ann)).style.fontWeight = 'bold';
saveBg = ann.div.style.backgroundColor;
ann.div.style.backgroundColor = '#ddd';
},
annotationMouseOutHandler: function(ann, point, dg, event) {
document.getElementById(nameAnnotation(ann)).style.fontWeight = 'normal';
ann.div.style.backgroundColor = saveBg;
},
pointClickCallback: function(event, p) {
// Check if the point is already annotated.
if (p.annotation) return;
// If not, add one.
var ann = {
series: p.name,
xval: p.xval,
shortText: num,
text: "Annotation #" + num
};
var anns = g.annotations();
anns.push(ann);
g.setAnnotations(anns);
num++;
}
});
});
//--><!]]></script>
</body>
</html>
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