Visualising an Art Exhibition – Studio 12

<!DOCTYPE html>
<style>

form {
  font-family: "Poppins", Poppins, sans-serif;
}

svg {
  font: 10px sans-serif;
}

</style>
<svg width="960" height="570"></svg>
<form>
  <label><input type="radio" name="mode" value="sumBySize" checked> Size</label>
  <label><input type="radio" name="mode" value="sumByCount"> Count</label>
</form>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>

var svg = d3.select("svg"),
    width = +svg.attr("width"),
    height = +svg.attr("height");

var color = d3.scaleOrdinal().range(['red','orange', 'yellow','green', 'blue', 'purple', 'grey','magenta','pink']),
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var treemap = d3.treemap()
    .tile(d3.treemapResquarify)
    .size([width, height])
    .round(true)
    .paddingInner(2);

d3.json("studio12_data.json", function(error, data) {
  if (error) throw error;

var root = d3.hierarchy(data)
      .eachBefore(function(d) { d.data.id = (d.parent ? d.parent.data.id + "." : "") + d.data.name; })
      .sum(sumBySize)
      .sort(function(a, b) { return b.height - a.height || b.value - a.value; });

treemap(root);

var cell = svg.selectAll("g")
    .data(root.leaves())
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cell.append("rect")
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      .attr("height", function(d) { return d.y1 - d.y0; })
      .attr("fill", function(d) { return color(d.parent.data.id); });

cell.append("clipPath")
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    .append("use")
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cell.append("text")
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    .selectAll("tspan")
      .data(function(d) { return d.data.name.split(/(?=[A-Z][^A-Z])/g); })
    .enter().append("tspan")
      .attr("x", 4)
      .attr("y", function(d, i) { return 13 + i * 10; })
      .text(function(d) { return d; });

cell.append("title")
      .text(function(d) { return d.data.id + "\n" + format(d.value); });

d3.selectAll("input")
      .data([sumBySize, sumByCount], function(d) { return d ? d.name : this.value; })
      .on("change", changed);

var timeout = d3.timeout(function() {
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        .property("checked", true)
        .dispatch("change");
  }, 2000);

function changed(sum) {
    timeout.stop();

treemap(root.sum(sum));

cell.transition()
        .duration(750)
        .attr("transform", function(d) { return "translate(" + d.x0 + "," + d.y0 + ")"; })
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});

function sumByCount(d) {
  return d.children ? 0 : 1;
}

function sumBySize(d) {
  return d.size;
}

</script>
</body>

https://d3js.org/d3.v4.min.js