小编Ale*_*a J的帖子

我有一个带有彩色节点的力图,我试图添加标签.现在它有标签,但它是浏览器原生的小巧,难以读取的标签.如何添加更容易看到的标签？

 <svg width="960" height="600"></svg>
 <script>
    var svg = d3.select("svg"),
  width = +svg.attr("width"),
  height = +svg.attr("height");

var color = d3.scaleOrdinal(d3.schemeCategory10);

var simulation = d3.forceSimulation()
 .force("link", d3.forceLink().id(function(d) { return d.id; }))
 .force("charge", d3.forceManyBody())
 .force("center", d3.forceCenter(width / 2, height / 2));

d3.json("got_relationships.json", function(error, graph) {
 if (error) throw error;

var link = svg.append("g")
  .attr("class", "links")
  .selectAll("line")
 .data(graph.links)
 .enter().append("line")
  .attr("stroke-width", function(d) { return Math.sqrt(d.value); });

  var node = svg.append("g")
   .attr("class", "nodes")
  .selectAll("circle")
  .data(graph.nodes)
  .enter().append("circle")
  .attr("r", 5)
  .attr("fill", function(d) { return color(d.group); })
  .call(d3.drag()
      .on("start", …