responder hierarchical bar chart

readme.json

{
 "name": "test",
"children": [
 {
 "name": "13CCPS",
"children": [
 {
 "name": "Actinobacteria",
"children": [
 {
 "name": "Pseudonocardiales",
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{
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{
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 {
 "name": "OTU.183",
"size": 1 
} 
] 
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{
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 {
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} 
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{
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} 
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} 
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} 
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} 
] 
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{
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 {
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} 
] 
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 {
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 {
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{
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{
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{
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{
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{
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{
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"size": 1 
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{
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"size": 1 
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{
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"size": 1 
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{
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},
{
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"size": 1 
} 
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} 
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{
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"size": 1 
} 
] 
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{
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 "name": "Planctomyces",
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 {
 "name": "OTU.150",
"size": 1 
} 
] 
} 
] 
} 
] 
} 
] 
} 
] 
},
{
 "name": "Proteobacteria",
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 {
 "name": "Alphaproteobacteria",
"children": [
 {
 "name": "Rhizobiales",
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 {
 "name": "Rhizobiaceae",
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 {
 "name": "Rhizobium",
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 {
 "name": "OTU.165",
"size": 1 
} 
] 
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{
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} 
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 {
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} 
] 
} 
] 
} 
] 
} 
] 
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 {
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 {
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 {
 "name": "OTU.5",
"size": 1 
} 
] 
} 
] 
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{
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"children": [
 {
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"size": 1 
} 
] 
} 
] 
} 
] 
} 
] 
},
{
 "name": "Deltaproteobacteria",
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 {
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"children": [
 {
 "name": "Sorangiineae",
"children": [
 {
 "name": "Sandaracinaceae",
"children": [
 {
 "name": "OTU.32",
"size": 1 
} 
] 
} 
] 
} 
] 
} 
] 
},
{
 "name": "Gammaproteobacteria",
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 {
 "name": "aaa34a10",
"children": [
 {
 "name": "uncultured_bacterium",
"children": [
 {
 "name": "unassigned",
"children": [
 {
 "name": "OTU.48",
"size": 1 
} 
] 
} 
] 
} 
] 
},
{
 "name": "Enterobacteriales",
"children": [
 {
 "name": "Enterobacteriaceae",
"children": [
 {
 "name": "Enterobacter",
"children": [
 {
 "name": "OTU.290",
"size": 1 
} 
] 
},
{
 "name": "unassigned",
"children": [
 {
 "name": "OTU.68",
"size": 1 
} 
] 
} 
] 
} 
] 
},
{
 "name": "Pseudomonadales",
"children": [
 {
 "name": "Pseudomonadaceae",
"children": [
 {
 "name": "Cellvibrio",
"children": [
 {
 "name": "OTU.6",
"size": 1 
} 
] 
} 
] 
} 
] 
},
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 {
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} 
] 
} 
] 
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] 
} 
] 
} 
] 
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{
 "name": "Verrucomicrobia",
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 "name": "Spartobacteria",
"children": [
 {
 "name": "Chthoniobacterales",
"children": [
 {
 "name": "Chthoniobacteraceae",
"children": [
 {
 "name": "Chthoniobacter",
"children": [
 {
 "name": "OTU.241",
"size": 1 
} 
] 
} 
] 
} 
] 
} 
] 
} 
] 
} 
] 
} 
] 
}

README.md

Forked from a Mike Bostock example. Click on the bars to drill down into the categories.

index.html

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  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

svg.append("rect")
    .attr("class", "background")
    .attr("width", width)
    .attr("height", height)
    .on("click", up);

svg.append("g")
    .attr("class", "x axis");

svg.append("g")
    .attr("class", "y axis")
  .append("line")
    .attr("y1", "100%");

d3.json("readme.json", function(error, root) {
  partition.nodes(root);
  x.domain([0, root.value]).nice();
  down(root, 0);
});

function down(d, i) {
  if (!d.children || this.__transition__) return;
  var end = duration + d.children.length * delay;

  // Mark any currently-displayed bars as exiting.
  var exit = svg.selectAll(".enter")
      .attr("class", "exit");

  // Entering nodes immediately obscure the clicked-on bar, so hide it.
  exit.selectAll("rect").filter(function(p) { return p === d; })
      .style("fill-opacity", 1e-6);

  // Enter the new bars for the clicked-on data.
  // Per above, entering bars are immediately visible.
  var enter = bar(d)
      .attr("transform", stack(i))
      .style("opacity", 1);

  // Have the text fade-in, even though the bars are visible.
  // Color the bars as parents; they will fade to children if appropriate.
  enter.select("text").style("fill-opacity", 1e-6);
  enter.select("rect").style("fill", color(true));

  // Update the x-scale domain.
  x.domain([0, d3.max(d.children, function(d) { return d.value; })]).nice();

  // Update the x-axis.
  svg.selectAll(".x.axis").transition()
      .duration(duration)
      .call(xAxis);

  // Transition entering bars to their new position.
  var enterTransition = enter.transition()
      .duration(duration)
      .delay(function(d, i) { return i * delay; })
      .attr("transform", function(d, i) { return "translate(0," + barHeight * i * 1.2 + ")"; });

  // Transition entering text.
  enterTransition.select("text")
      .style("fill-opacity", 1);

  // Transition entering rects to the new x-scale.
  enterTransition.select("rect")
      .attr("width", function(d) { return x(d.value); })
      .style("fill", function(d) { return color(!!d.children); });

  // Transition exiting bars to fade out.
  var exitTransition = exit.transition()
      .duration(duration)
      .style("opacity", 1e-6)
      .remove();

  // Transition exiting bars to the new x-scale.
  exitTransition.selectAll("rect")
      .attr("width", function(d) { return x(d.value); });

  // Rebind the current node to the background.
  svg.select(".background")
      .datum(d)
    .transition()
      .duration(end);

  d.index = i;
}

function up(d) {
  if (!d.parent || this.__transition__) return;
  var end = duration + d.children.length * delay;

  // Mark any currently-displayed bars as exiting.
  var exit = svg.selectAll(".enter")
      .attr("class", "exit");

  // Enter the new bars for the clicked-on data's parent.
  var enter = bar(d.parent)
      .attr("transform", function(d, i) { return "translate(0," + barHeight * i * 1.2 + ")"; })
      .style("opacity", 1e-6);

  // Color the bars as appropriate.
  // Exiting nodes will obscure the parent bar, so hide it.
  enter.select("rect")
      .style("fill", function(d) { return color(!!d.children); })
    .filter(function(p) { return p === d; })
      .style("fill-opacity", 1e-6);

  // Update the x-scale domain.
  x.domain([0, d3.max(d.parent.children, function(d) { return d.value; })]).nice();

  // Update the x-axis.
  svg.selectAll(".x.axis").transition()
      .duration(duration)
      .call(xAxis);

  // Transition entering bars to fade in over the full duration.
  var enterTransition = enter.transition()
      .duration(end)
      .style("opacity", 1);

  // Transition entering rects to the new x-scale.
  // When the entering parent rect is done, make it visible!
  enterTransition.select("rect")
      .attr("width", function(d) { return x(d.value); })
      .each("end", function(p) { if (p === d) d3.select(this).style("fill-opacity", null); });

  // Transition exiting bars to the parent's position.
  var exitTransition = exit.selectAll("g").transition()
      .duration(duration)
      .delay(function(d, i) { return i * delay; })
      .attr("transform", stack(d.index));

  // Transition exiting text to fade out.
  exitTransition.select("text")
      .style("fill-opacity", 1e-6);

  // Transition exiting rects to the new scale and fade to parent color.
  exitTransition.select("rect")
      .attr("width", function(d) { return x(d.value); })
      .style("fill", color(true));

  // Remove exiting nodes when the last child has finished transitioning.
  exit.transition()
      .duration(end)
      .remove();

  // Rebind the current parent to the background.
  svg.select(".background")
      .datum(d.parent)
    .transition()
      .duration(end);
}

// Creates a set of bars for the given data node, at the specified index.
function bar(d) {
  var bar = svg.insert("g", ".y.axis")
      .attr("class", "enter")
      .attr("transform", "translate(0,5)")
    .selectAll("g")
      .data(d.children)
    .enter().append("g")
      .style("cursor", function(d) { return !d.children ? null : "pointer"; })
      .on("click", down);

  bar.append("text")
      .attr("x", -6)
      .attr("y", barHeight / 2)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d.name; });

  bar.append("rect")
      .attr("width", function(d) { return x(d.value); })
      .attr("height", barHeight);

  return bar;
}

// A stateful closure for stacking bars horizontally.
function stack(i) {
  var x0 = 0;
  return function(d) {
    var tx = "translate(" + x0 + "," + barHeight * i * 1.2 + ")";
    x0 += x(d.value);
    return tx;
  };
}

</script>

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