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biovisualize/index.html

Created June 9, 2011 14:42
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Simple D3 tooltip
Raw
index.html
<!DOCTYPE html>
<html >
<head>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.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:svg")
.attr("class", "sample")
.attr("width", 300)
.attr("height", 300);
d3.select(".example_div svg")
.append("svg: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>
@caged
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caged commented Sep 10, 2013

I've created a simple library for dealing with tooltips in d3 if anyone is interested.

@deanmalmgren
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@caged Thanks! this is really helpful +1

@cazzer
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cazzer commented Dec 3, 2013

If anyone else is getting event is not defined or similar add d3. to the events:

return tooltip.style("top", (d3.event.pageY-10)+"px").style("left",(d3.event.pageX+10)+"px");

@nileshtrivedi
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svg:title does work as a tooltip in Firefox 37 and Chrome 42. That's good enough for me! :)

@srinivmw
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Can we apply anything instead of

    .style("left", (d3.event.pageX - 34) + "px")
    .style("top", (d3.event.pageY - 12) + "px");

because when i use this the tooltip is not displaying in its position correctly.....

Below two things also not working:
1)

      .style("left", d3.select(this).attr("cx") + "px")     
      .style("top", d3.select(this).attr("cy") + "px");

       .style("left", dx + "px")     
  .style("top", dy + "px");

Can i have good solution for this?

@billwestfall
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brilliant and simple, thanks!

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