v3 to v4

Built with blockbuilder.org

<!doctype html>

<title>Title</title>
  <meta name="description" content="The HTML5 Herald">
  <meta name="author" content="SitePoint">

</head>

var x = d3.scaleLinear()
		    .domain([0, width])
		    .range([0, width]);

var y = d3.scaleLinear()
		    .domain([0, height])
		    .range([0, height]);

var color = d3.scaleThreshold()
	    .domain([-5,-0,0,5])
	    .range(["#BB0000","#600A0A","#404040","#064D15","#1CA41C"]);

var svg = d3.select("#heatmap").append("svg")
		    .attr("width", width + margin.left + margin.right)
		    .attr("height", height + margin.bottom + margin.top)
		    .style("margin-left", -margin.left + "px")
		    .style("margin.right", -margin.right + "px")
		  .append("g")
		    .attr("transform", "translate(" + margin.left + "," + margin.top + ")")
		    .style("shape-rendering", "crispEdges");

var treemap = d3.treemap()
			.tile(d3.treemapSquarify.ratio(height / width * 0.5 * (1 + Math.sqrt(5))))
	    .size([width, height])
	    .round(false)
	    .paddingInner(1);

var grandparent = svg.append("g")
		    .attr("class", "grandparent");

grandparent.append("rect")
		    .attr("y", -margin.top)
		    .attr("width", width)
		    .attr("height", margin.top);

grandparent.append("text")
		    .attr("x", 6)
		    .attr("y", 6 - margin.top)
		    .attr("dy", ".75em");

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

function initialize(root) {
        root.x = root.y = 0;
        root.dx = width;
        root.dy = height;
        root.depth = 0;
      }

function accumulate(d) {
        return (d._children = d.children)
            ? d.value = d.children.reduce(function(p, v) { return p + accumulate(v); }, 0)
            : d.value;
      }

function display(d) {
        grandparent
          .datum(d.parent)
        	.on("click", transition)
          .select("text")
          	.text(name(d));

grandparent
          .datum(d.parent)
          .select("rect")
          .attr("fill", function(){ return color(d.data.change)})

var g1 = svg.insert("g", ".grandparent")
          .datum(d)
          .attr("class", "depth");

var g = g1.selectAll("g")
          .data(d._children)
          .enter().append("g");

g.filter(function(d) { return d._children; })
          .classed("children", true)
          .on("click", transition);

g.selectAll(".child")
          .data(function(d) { return d._children || [d]; })
          .enter().append("rect")
          .attr("class", "child")
          .call(rect);

d3.select("#heatmap").select("#tooltip").remove();
        var div = d3.select("#heatmap").append("div")
          .attr("id", "tooltip")
          .style("opacity", 0);

g.append("svg:a")
          .attr("xlink:href", function(d) {
              if(!d._children){
                  var url = "#";
                  return url; 
              }
          })
          .append("rect")
            .attr("class", "parent")
            .call(rect)
            .on("mouseover", function(d) {
                   if (d.data.name !== "Results") {
                       d3.select("#tooltip").transition()
                          .duration(200)
                          .style("opacity", 1);
                       d3.select("#tooltip").html("<h3>"+d.data.name+"</h3><table>"+
                                "<tr><td>"+d.data.value+"</td><td> ("+d.data.change+"%)</td></tr>"+
                                "</table>")
                          .style("left", (d3.event.pageX-document.getElementById("heatmap").offsetLeft + 20) + "px")
                          .style("top", (d3.event.pageY-document.getElementById("heatmap").offsetTop - 60) + "px");
                   }
            })
            .on("mouseout", function(d) {
              d3.select("#tooltip").transition()
                .duration(500)
                .style("opacity", 0);
            })

g.append("text")
          .attr("dy", ".75em")
          .text(function(d) { return d.data.name; })
          .call(text);

function transition(d) {
          if (transitioning || !d) return;
          transitioning = true;

var g2 = display(d),
            t1 = g1.transition().duration(750),
            t2 = g2.transition().duration(750);

x.domain([d.x0, d.x0 + d.x1]);
          y.domain([d.y0, d.y0 + d.y1]);

svg.style("shape-rendering", null);

svg.selectAll(".depth").sort(function(a, b) { return a.depth - b.depth; });

g2.selectAll("text").style("fill-opacity", 0);

t1.selectAll("text").call(text).style("fill-opacity", 0);
          t2.selectAll("text").call(text).style("fill-opacity", 1);
          t1.selectAll("rect").call(rect);
          t2.selectAll("rect").call(rect);

t1.remove().each("end", function() {
            svg.style("shape-rendering", "crispEdges");
            transitioning = false;
          });
        }

return g;
      }
       
      function text(text) {
        text.attr("x", function(d) { return x(d.x0) + (x(d.x0 + d.dx) - x(d.x0))/2; })
          .attr("y", function(d) { return y(d.y0) + (y(d.y0 + d.dy) - y(d.y0))/2; })
          .attr("dy", 0)
          .attr("font-size", function(d) { var w=x(d.x0 + d.dx) - x(d.x0),
                                               h=y(d.y0 + d.dy) - y(d.y0),
                                               t=(d.data.name).length/1.3;
                                           var tf=Math.min(Math.floor(w/t),h/3);
                                           return (tf>=5)?Math.min(tf, 30):0; })
          .attr("fill", "white")
          .attr("text-anchor", "middle");
      }

function name(d) {
        return d.parent
          ? "Sector : "+d.data.name+" (Back to Overall Market)"
          : "Overall "+d.data.name;
      }
    });
  </script>
</body>
</html>

https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.js

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