svg - D3: d3 tree - Making a vertical tree diagram - 小渝人儿

    <!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>tree</title>
  <style>

  .node circle {
    fill: #fff;
    stroke: steelblue;
    stroke-width: 3px;
  }

  .node text { font: 12px sans-serif; }

  .link {
    fill: none;
    stroke: #ccc;
    stroke-width: 2px;
  }

    </style>
</head>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script type="text/javascript">
var treeData = [
  {
    "name": "Top Level",
    "parent": "null",
    "children": [
      {
        "name": "Level 2: A",
        "parent": "Top Level",
        "children": [
          {
            "name": "Son of A",
            "parent": "Level 2: A"
          },
          {
            "name": "Daughter of A",
            "parent": "Level 2: A"
          }
        ]
      },
      {
        "name": "Level 2: B",
        "parent": "Top Level"
      }
    ]
  }
];

// ************** Generate the tree diagram  *****************
var margin = {top: 20, right: 120, bottom: 20, left: 120},
  width = 960 - margin.right - margin.left,
  height = 500 - margin.top - margin.bottom;

var i = 0;

var tree = d3.layout.tree()
  .size([height, width]);

var diagonal = d3.svg.diagonal()
  .projection(function(d) { return [d.x, d.y]; });

var svg = d3.select("body").append("svg")
  .attr("width", width + margin.right + margin.left)
  .attr("height", height + margin.top + margin.bottom)
    .append("g")
  .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

root = treeData[0];
//root = treeData[0].children[0];

update(root);

function update(source) {

  // Compute the new tree layout.
  var nodes = tree.nodes(root).reverse(),
    links = tree.links(nodes);

  // Normalize for fixed-depth.
  nodes.forEach(function(d) { d.y = d.depth * 100; });

  // Declare the nodesâ€¦
  var node = svg.selectAll("g.node")
    .data(nodes, function(d) { return d.id || (d.id = ++i); });

  // Enter the nodes.
  var nodeEnter = node.enter().append("g")
    .attr("class", "node")
    .attr("transform", function(d) { 
      return "translate(" + d.x + "," + d.y + ")"; });

  nodeEnter.append("circle")
    .attr("r", 10)
    .style("fill", "#fff");

  nodeEnter.append("text")
    .attr("y", function(d) { 
      return d.children || d._children ? -18 : 18; })
    .attr("dy", ".35em")
    .attr("text-anchor", "middle")
    .text(function(d) { return d.name; })
    .style("fill-opacity", 1);



  // Declare the linksâ€¦
  var link = svg.selectAll("path.link")
    .data(links, function(d) { return d.target.id; });

  // Enter the links.
  link.enter().insert("path", "g")
    .attr("class", "link")
    .attr("d", diagonal);

} 
</script>
</body>
</html>

效果：
请输入图片描述

这里需要修改一下几个地方：

var nodeEnter = node.enter().append("g")
  .attr("class", "node")
  .attr("transform", function(d) { 
      return "translate(" + d.x + "," + d.y + ")"; });


var diagonal = d3.svg.diagonal()
.projection(function(d) { return [d.x, d.y]; });

nodeEnter.append("text")
  .attr("y", function(d) { 
      return d.children || d._children ? -18 : 18; })
  .attr("dy", ".35em")
  .attr("text-anchor", "middle")
  .text(function(d) { return d.name; })
  .style("fill-opacity", 1);

如果改为水平的就是：

var diagonal = d3.svg.diagonal()
    .projection(function(d) {  return [d.y, d.x]; });

 var nodeEnter = node.enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { 
          return "translate(" + d.y + "," + d.x + ")"; });

 nodeEnter.append("text")
      .attr("x", function(d) { 
          return d.children || d._children ? -13 : 13; })
      .attr("dy", ".35em")
      .attr("text-anchor", function(d) { 
          return d.children || d._children ? "end" : "start"; })
      .text(function(d) { return d.name; })
      .style("fill-opacity", 1);

D3: d3 tree - Making a vertical tree diagram

小渝人儿

引用和评论

更简单的理解Pod和容器

SVG之Basic Shape

最好的svg使用方案（个人觉得）

svg转字体文件部分线条缺失

【第4期】搜索客 Meetup | INFINI Pizza 网站 SVG 动画这么炫，我教你啊！

SVG 了解下