d3.js，点击操作到另一个用sunburst的变量数组编码的URL

我对序列进行了sunburst可视化，并希望为每个路径添加一个链接。

我读过类似的问题d3.js，点击链接到另一个用变量编码的URL，可以根据特定路径的变量进行链接。(请参阅下面的代码(此代码可以生成类似于"http://somelink.com/link.php?id1=CurrentNode".

然而，我想生成类似"http://somelink.com/link.php?id1=CurrentNode&id2=ParentNode"。

我对javascript不是很了解，所以我需要帮助。

// Main function to draw and set up the visualization, once we have the data.
function createVisualization(json) {
  // Basic setup of page elements.
  initializeBreadcrumbTrail();
  drawLegend();
  d3.select("#togglelegend");
  // Bounding circle underneath the sunburst, to make it easier to detect
  // when the mouse leaves the parent g.
  vis.append("svg:circle")
      .attr("r", radius)
      .style("opacity", 0);
  // For efficiency, filter nodes to keep only those large enough to see.
  var nodes = partition.nodes(json)
      .filter(function(d) {
      return (d.dx > 0.005); // 0.005 radians = 0.29 degrees
      });
  var path = vis.data([json]).selectAll("path")
      .data(nodes)
      .enter().append("svg:path")
      .attr("display", function(d) { return d.depth ? null : "none"; })
      .attr("d", arc)
      .attr("fill-rule", "evenodd")
      .style("fill", function(d) { return colors[d.name]; })
      .style("opacity", 1)
      .on("mouseover", mouseover)
      .on("click", function(d) {
              var url = "http://somelink.com/link.php?id1=";
              url += d.name;
              $(location).attr('href', url);
              window.location = url;
            });
  // Add the mouseleave handler to the bounding circle.
  d3.select("#container").on("mouseleave", mouseleave);
  // Get total size of the tree = value of root node from partition.
  totalSize = path.node().__data__.value;
 };

我想出了如何制作三级日光浴的url。为了获得基于日光浴水平的价值，我对Lars的建议进行了一些修改。

     .on("click", function(d) {
        var url = "http://somelink.com/link.php";
        if (d.depth== 1) {
        　url += "?id1=" + d.name;
        }
        if (d.depth== 2) {
        　url += "?id1=" + (d.parent ? d.parent.name : "");
        　url += "&id2=" + d.name;
        }
        if (d.depth== 3) {
        　url += "?id1=" + (d.parent.parent ? d.parent.parent.name : "");
        　url += "&id2=" + (d.parent ? d.parent.name : "");
        　url += "&id3=" + d.name;
        }
        $(location).attr('href', url);
        window.location = url;
    });