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<html>
<head>
<title>Rule Anchor</title>
<script type="text/javascript" src="protovis-r3.3.js"></script>
<style type="text/css">span { display: block !important; }</style>
</head>
<body>
<script type="text/javascript+protovis">
var vis = new pv.Panel()
.width(400)
.height(300)
bar=vis.add(pv.Bar)
.data(["left", "top", "right", "bottom", "center"])
.width(300)
.height(30)
.left(40)
.right(40)
.top(function() {return this.index*60}).fillStyle('red')
var rule = bar.add(pv.Rule)
rule.anchor(function(d) d).add(pv.Label)
.text(function(d, p) d);
vis.render();
</script>
</body>
</html>
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