title: D3.js change text on mouseover, is it possible?
body: <p>I have a force-directed graph, and I wanna to change text in the nodes on mouse over. I have tried to do this with placing a data of <code>"full_name":</code> in data array and then calling it on mouseover like I'm calling it for blue rectangle images. But it does not seems to work it and I'm not getting any error. So I don't know what is the problem..</p>
  
  <p>You can see and edit example here: <a href="http://jsfiddle.net/dzorz/CqaLh/" rel="nofollow">http://jsfiddle.net/dzorz/CqaLh/</a></p>
  
  <p>and script looks like this:</p>
  
  <pre><code>    var data = {"nodes":[
                          {"name":"Action 1", "type":2, "slug": "", "entity":"employee" },
                          {"name":"Action 2", "type":3, "slug": "", "entity":"employee" },
                          {"name":"Action 4", "type":5, "slug": "", "value":265000, "entity":"employee"},
                          {"name":"Action 5", "type":6, "slug": "", "value":23000, "entity":"employee"},
                          {"name":"Action 3", "type":4, "slug": "", "value":115000, "entity":"employee"},
                          {"name":"YHO", "full_name":"Yahoo", "type":1, "slug": "www.yahoo.com", "entity":"company", "img_hrefD":"http://img4host.net/upload/30143226522090da3be7a.jpg", "img_hrefL":"http://img4host.net/upload/30145118522095467b7e3.jpg"},
                          {"name":"GGL", "full_name":"Google", "type":1, "slug": "www.google.com", "entity":"company", "img_hrefD":"http://img4host.net/upload/30143226522090da3be7a.jpg", "img_hrefL":"http://img4host.net/upload/30145118522095467b7e3.jpg" },
                          {"name":"BNG", "full_name":"Bing", "type":1, "slug": "www.bing.com", "entity":"company", "img_hrefD":"http://img4host.net/upload/30143226522090da3be7a.jpg", "img_hrefL":"http://img4host.net/upload/30145118522095467b7e3.jpg" },
                          {"name":"YDX", "full_name":"Yandex", "type":1, "slug": "", "entity":"company", "img_hrefD":"http://img4host.net/upload/30143226522090da3be7a.jpg", "img_hrefL":"http://img4host.net/upload/30145118522095467b7e3.jpg" }
                      ], 
              "links":[
                          {"source":0,"target":3,"value":10},
                          {"source":4,"target":3,"value":1},
                          {"source":1,"target":7,"value":10},
                          {"source":2,"target":4,"value":10},
                          {"source":4,"target":7,"value":1},
                          {"source":4,"target":5,"value":10},
                          {"source":4,"target":6,"value":10},
                          {"source":8,"target":4,"value":1}
                          ]
                 }    
  
  
  
      var w = 560,
          h = 500,
          radius = d3.scale.log().domain([0, 312000]).range(["10", "50"]);
  
      var vis = d3.select("body").append("svg:svg")
          .attr("width", w)
          .attr("height", h);
  
          vis.append("defs").append("marker")
          .attr("id", "arrowhead")
          .attr("refX", 25 + 3) /*must be smarter way to calculate shift*/
          .attr("refY", 2)
          .attr("markerWidth", 6)
          .attr("markerHeight", 4)
          .attr("orient", "auto")
          .append("path")
              .attr("d", "M 0,0 V 4 L6,2 Z"); //this is actual shape for arrowhead
  
      //d3.json(data, function(json) {
          var force = self.force = d3.layout.force()
              .nodes(data.nodes)
              .links(data.links)
              .distance(150)
              .charge(-1000)
              .size([w, h])
              .start();
  
  
  
          var link = vis.selectAll("line.link")
              .data(data.links)
              .enter().append("svg:line")
              .attr("class", function (d) { return "link" + d.value +""; })
              .attr("x1", function(d) { return d.source.x; })
              .attr("y1", function(d) { return d.source.y; })
              .attr("x2", function(d) { return d.target.x; })
              .attr("y2", function(d) { return d.target.y; })
              .attr("marker-end", function(d) {
                                                  if (d.value == 1) {return "url(#arrowhead)"}
                                                  else    { return " " }
                                              ;});
  
  
          function openLink() {
              return function(d) {
                  var url = "";
                  if(d.slug != "") {
                      url = d.slug
                  } //else if(d.type == 2) {
                      //url = "clients/" + d.slug
                  //} else if(d.type == 3) {
                      //url = "agencies/" + d.slug
                  //}
                  window.open("//"+url)
              }
          }
  
  
  
  
          var node = vis.selectAll("g.node")
              .data(data.nodes)
            .enter().append("svg:g")
              .attr("class", "node")
              .call(force.drag);
  
  
          node.append("circle")
              .attr("class", function(d){ return "node type"+d.type})
              .attr("r", function(d) { return radius(d.value) || 10 })
              //.style("fill", function(d) { return fill(d.type); })
  
  
          node.append("svg:image")
              .attr("class", function(d){ return "circle img_"+d.name })
              .attr("xlink:href", function(d){ return d.img_hrefD})
              .attr("x", "-36px")
              .attr("y", "-36px")
              .attr("width", "70px")
              .attr("height", "70px")
              .on("click", openLink())
              .on("mouseover", function (d) { if(d.entity == "company")
                                                  {
                      d3.select(this).attr("width", "90px")
                                      .attr("x", "-46px")
                                      .attr("y", "-36.5px")
                                     .attr("xlink:href", function(d){ return d.img_hrefL});
  
                                                  }
                  })
              .on("mouseout", function (d) { if(d.entity == "company")
                                              {
                      d3.select(this).attr("width", "70px")
                                      .attr("x", "-36px")
                                      .attr("y", "-36px")
                                     .attr("xlink:href", function(d){ return d.img_hrefD});
                                              }
                  });    
  
  
          node.append("svg:text")
              .attr("class", function(d){ return "nodetext title_"+d.name })
              .attr("dx", 0)
              .attr("dy", ".35em")
              .attr("text-anchor", "middle")
              .style("fill", "white")
              .text(function(d) { return d.name })
              .on("mouseover", function (d) { if(d.entity == "company"){
                      d3.select(this).text(function(d) { return d.full_name })
  
                  }
              });
  
          force.on("tick", function() {
            link.attr("x1", function(d) { return d.source.x; })
                .attr("y1", function(d) { return d.source.y; })
                .attr("x2", function(d) { return d.target.x; })
                .attr("y2", function(d) { return d.target.y; });
  
            node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
          });
      //});       
  </code></pre>
  
  <p>css:</p>
  
  <pre><code>@charset "utf-8";
  /* CSS Document */
  
  .link10 { stroke: #ccc; stroke-width: 3px; stroke-dasharray: 3, 3; }
  .link1 { stroke: #000; stroke-width: 3px;}
  .nodetext { pointer-events: none; font: 14px sans-serif; font-weight:bold;}
  
  .node.type1 {
    fill:brown;
  }
  .node.type2 {
    fill:#337147;
  }
  .node.type3 {
    fill:blue;
  }
  .node.type4 {
    fill:red;
  }
  
  .node.type5 {
      fill:#1BC9E0;
  }
  
  .node.type6 {
      fill:#E01B98;
  }
  
  image.circle {
      cursor:pointer;
  }
  
  .fadein{
  display:none;
  font-size:20px;
  }
  
  .rectD{
  background-color:#000000;
  width:70px;
  height:30px
  }
  
  .rectL{
  background-color:#000000;
  width:90px;
  height:30px
  }
  </code></pre>
  
  <p>Is it even possible to change the text after everything is loaded?</p>
  
  <p>Please help</p>