javascript - How to display a text when mouseover a cilcle -
i have tried code dosent work properly. can suggest method resolve error. new visualization , @ beginning stage of d3.js
<!doctype html> <html> <head> <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"> </script> </head> <body> <div id="viz"></div> <script type="text/javascript"> var samplesvg = d3.select("#viz") .append("svg") .attr("width", 100) .attr("height", 100); samplesvg.append("circle") .style("stroke", "gray") .style("fill", "white") .attr("r", 40) .attr("cx", 50) .attr("cy", 50) .on("mouseover", function() {d3.select(this).append("text").attr("fill","blue").text("fill aliceblue");}) </script> </body> </html>
your trying append text element circle, not possible. create group element , add circle , text elements group. here example.
var samplesvg = d3.select("#viz") .append("svg") .attr("width", 100) .attr("height", 100); var grp = samplesvg.append("g"); var circle = grp.append("circle") .style("stroke", "gray") .style("fill", "white") .attr("r", 40) .attr("cx", 50) .attr("cy", 50); circle.on("mouseover", function() { grp.append("text") .style("fill", "black") .attr("x", 32) .attr("y", 52) .text("hello"); });<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script> <div id="viz"></div>
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