JSFiddle - React, Tailwind, and code Playground

HTML

<div id="main">
  <table>
    <tr>
      <td>
        <div class="intgraph"/>
      </td>
    </tr>
  </table>
</div>

CSS

circle.node {
  cursor: pointer;
  stroke: #000;
  stroke-width: .5px;
}

line.link {
  fill: none;
  stroke: #9ecae1;
  stroke-width: 1.5px;
}

JavaScript

var w = 800,
    h = 800,
    node,
    link,
    root;

var force = d3.layout.force()
    .on("tick", tick)
    .charge(function(d) { return d._children ? -d.size / 100 : -50; })
    .linkDistance(function(d) { return d.target._children ? 80 : 30; })
    .size([w, h - 160]);

function zoom() {
  console.log("here", d3.event.translate, d3.event.scale);
  console.log("transform", d3.event.translate, d3.event.scale);
  //vis.attr("transform", transform);
  node.attr("transform", transform);
  link.attr("transform", transform);
}

function transform(d){
  return "translate(" + d3.event.translate + ")" + " scale(" + d3.event.scale + ")";
}

var vis = d3.select(".intgraph").append("svg:svg")
    .attr("width", w)
    .attr("height", h)
  .append("svg:g")
    .call(d3.behavior.zoom().on("zoom", zoom));

// the area to zoom
var rect =  vis.append("rect")
        .attr("width", w)
        .attr("height", h)
        .style("fill", "none")
        .style("pointer-events", "all");

function readfile(json) {
  root = json;
  root.fixed = true;
  root.x = w / 2;
  root.y = h / 2 - 80;
  update();
};

function update() {
  var nodes = flatten(root),
      links = d3.layout.tree().links(nodes);

  // Restart the force layout.
  force
      .nodes(nodes)
      .links(links)
      .start();

  // Update the links…
  link = vis.selectAll("line.link")
      .data(links, function(d) { return d.target.id; });

  // Enter any new links.
  link.enter().insert("svg:line", ".node")
      .attr("class", "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; });

  // Exit any old links.
  link.exit().remove();

  // Update the nodes
  node = vis.selectAll("circle.node")
      .data(nodes, function(d) { return d.id; })
      .style("fill", color);

  node.transition()
      .attr("r", function(d) { return d.children ? 4.5 :...