Tree v5

In response to a Stack Overflow question, Tree drawing orientation.

forked from mbostock's block: Tree Layout Orientations

forked from Coola85's block: Tree

<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.link {
  fill: none;
  stroke: #000;
}

.border {
  fill: none;
  shape-rendering: crispEdges;
  stroke: #aaa;
}

.node {
  stroke: #fff;
  }

</style>
<body>
<script src="//d3js.org/d3.v5.min.js"></script>
<script>

var margin = {top: 100, right: 10, bottom: 240, left: 10},
    width = 340 - margin.left - margin.right,
    height = 600 - margin.top - margin.bottom;

var orientations = {
  "bottom-to-top": {
    size: [width, height],
    x: function(d) { return d.x; },
    y: function(d) { return height - d.y; }
  }
};

var svg = d3.select("body").selectAll("svg")
    .data(d3.entries(orientations))
  .enter().append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
  
d3.json("graph.json").then(function(data) {

svg.each(function(orientation) {
    var svg = d3.select(this),
        o = orientation.value;

// Compute the layout.
    var treemap = d3.tree().size(o.size);
        
    var nodes = d3.hierarchy(data);
    
        nodes = treemap(nodes);
    
    var links = nodes.descendants().slice(1);

// Create the link lines.
    svg.selectAll(".link")
        .data(links)
      .enter().append("path")
        .attr("class", "link")
        .attr("d", function(d) {
       return "M" + d.x + "," + o.y(d)
         + "C" + d.x + "," + (o.y(d) + o.y(d.parent)) / 2
         + " " + d.parent.x + "," +  (o.y(d) + o.y(d.parent)) / 2
         + " " + d.parent.x + "," + o.y(d.parent);
       });

// Create the node circles.
    var node = svg.selectAll(".node")
        .data(nodes.descendants())
      .enter()
    		.append("g")
    node.append("circle")
        .attr("class", "node")
        .attr("r", 4.5)
        .attr("cx", o.x)
        .attr("cy", o.y);
    
    
   node .append("text")
        .text(function (d) {return d.data.name;})
        .attr("x", o.x)
        .attr("dx", 5)
        .attr("y", o.y);
  });
});

</script>

https://d3js.org/d3.v5.min.js