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@arnicas
Last active August 29, 2015 14:26
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HTML/CSS tooltip in D3
<!DOCTYPE html>
<!-- Updated code from Christophe Viau for a d3 tooltip in the old days:
https://gist.github.com/biovisualize/1016860 -->
<html >
<head>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
</head>
<body>
<div class="example_div"></div>
<script type="text/javascript">
var tooltip = d3.select("body")
.append("div")
.style("position", "absolute")
.style("z-index", "10")
.style("visibility", "hidden")
.text("a simple tooltip");
var sampleSVG = d3.select(".example_div")
.append("svg")
.attr("class", "sample")
.attr("width", 300)
.attr("height", 300);
d3.select(".example_div svg")
.append("circle")
.attr("stroke", "black")
.attr("fill", "aliceblue")
.attr("r", 50)
.attr("cx", 52)
.attr("cy", 52)
.on("mouseover", function(){return tooltip.style("visibility", "visible");})
.on("mousemove", function(){return tooltip.style("top", (event.pageY-10)+"px").style("left",(event.pageX+10)+"px");})
.on("mouseout", function(){return tooltip.style("visibility", "hidden");});
</script>
</body>
</html>
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