d3.js, click to link to another URL encoded with variables

d3.js, javascript, jquery

Solution

If it works with a static string then something is wrong with d.link_id. Try seeing what's inside either by doing `alert(d.link_id)` or if you use a firebug or similars do `console.log(d.link_id)`.

Alternatively, you should use real anchors for linking your nodes instead of setting click events. This would go something like...

chart.selectAll("scatter-dots")
  .data(data)
  .enter()
  .append("a")
    .attr("xlink:href", function(d) {return "http://somelink.com/link.php?id=" + d.link_id})
    .append("circle")
      .attr("cx", function (d) { return x(d.position[0]); } )
      .attr("cy", function (d) { return y(d.position[1]); } )
      .attr("r", 4)
      .style("fill", "#666")
      .style("opacity", 0.5)

(I can't seem to recall if this is the exact way of doing it, you might need to save the anchors in a variable and then append the circles to them.)

Problem

I made a scatter plot, and want to add a link to each dot. ``` chart.selectAll("scatter-dots") .data(data) .enter().append("circle") .attr("cx", function (d) { return x(d.position[0]); } ) .attr("cy", function (d) { return y(d.position[1]); } ) .attr("r", 4) .style("fill", "#666") .style("opacity", 0.5) .on("click", function(){ var url = "http://somelink.com/link.php?id="; url += d.link_id; //$(location).attr('href', url); //window.location = url; }); ``` It works if I just put the pure String link such as window.location = "http://stackoverflow.com" However, if I add queries to the end of the URL from a variable, the page does not redirected. Neither jquery nor javascript worked (as commented.) I also tried an external js file, still fail. This is in a PHP file, if this helps.

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